Heat pump with interleaved evaporator/condenser arrangement
10634401 ยท 2020-04-28
Assignee
Inventors
Cpc classification
F25B2500/01
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B39/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B39/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B2500/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B30/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B2339/047
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B39/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F25B30/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B25/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B39/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25B39/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A heat pump includes an evaporator for evaporating working liquid within an evaporator space bounded by an evaporator base, and a condenser for condensing evaporated working liquid within a condenser space bounded by a condenser base, the evaporator space being at least partially surrounded by the condenser space, the evaporator space being separated from the condenser space by the condenser base, and the condenser base being connected to the evaporator base.
Claims
1. A heat pump comprising: an evaporator for evaporating working liquid within an evaporator space bounded by an evaporator base; a condenser for condensing evaporated working liquid within a condenser space bounded by a condenser base; and a compressor for compressing evaporated working liquid from the evaporator space, wherein the evaporator space is at least partially surrounded by the condenser space, wherein the evaporator space is separated from the condenser space by the condenser base, wherein the condenser base is connected to the evaporator base, wherein the evaporator base comprises an evaporator intake for the working liquid to be evaporated and an evaporator drain for the working liquid cooled by the evaporation, wherein the evaporator base further comprises a condenser intake for a condenser liquid, and a condenser drain for a condenser liquid heated up due to the condensation, and wherein the condenser intake and the condenser drain are arranged on an edge of the evaporator base, and wherein the evaporator intake and the evaporator drain are arranged in a central region of the evaporator base.
2. The heat pump as claimed in claim 1, wherein the condenser base comprises a tapering cross-section from the evaporator intake to an exhaust opening coupled to the compressor for compressing evaporated working liquid from the evaporator space.
3. The heat pump as claimed in claim 1, wherein the condenser intake is arranged on the evaporator base such that a connecting hose extending between the condenser intake and a liquid feed inlet into the condenser is arranged completely outside the evaporator space.
4. The heat pump as claimed in claim 1, wherein the condenser base comprises a first recess for the condenser intake or a second recess for the condenser drain.
5. The heat pump as claimed in claim 1, wherein the condenser further comprises a condenser wall connected to the evaporator base so as to define the condenser space.
6. The heat pump as claimed in claim 1, wherein the condenser base comprises, within an attachment region for attachment to the evaporator base, a round shape whose diameter is larger than a diameter of the condenser base in the attachment region, so that the condenser space extends right up to the evaporator base.
7. The heat pump as claimed in claim 1, comprising a cylindrical outer wall formed by the condenser wall, wherein the condenser space, the evaporator space and the compressor are arranged within the cylindrical outer wall.
8. The heat pump as claimed in claim 1, wherein the condenser comprises a condenser liquid distribution arrangement arranged on an upper side of the condenser space so that during operation of the heat pump, working liquid flows top to bottom in the direction of the condenser base, the compressor being arranged to direct compressed evaporated working liquid into a region through which the working liquid runs during operation, and an upper end of the evaporator space from which the compressor exhausts the evaporated working liquid being arranged within a plane wherein the working liquid within the condenser runs top to bottom.
9. The heat pump as claimed in claim 1, wherein the condenser base comprises a condenser liquid distribution arrangement which comprises two or more feeding points, the evaporator base comprising a split condenser connection comprising a first portion on a first side and one or more second portions on a second side, a number of the one or more second portions being equal to a number of the feeding points.
10. The heat pump as claimed in claim 9, wherein the split portion further comprises a third portion on the second side, said third portion being coupled to a motor for the compressor so as to feed the motor with a portion of the condenser liquid as a cooling liquid for the motor for the compressor.
11. The heat pump as claimed in claim 9, wherein the first portion comprises a connection pipe which comprises a connection that is round, wherein the one or more second portions are elliptical, and wherein principal axes of the split portions are arranged in a mutually oblique manner.
12. The heat pump as claimed in claim 1, wherein the condenser drain comprises, on a first side of the evaporator base, a connection pipe comprising a round connection and comprises, on a second side pointing toward the condenser space, an eye-type shape, the connection pipe being configured such that its cross-sectional area along the connection pipe to the round connection is the same within a tolerance of plus or minus 10% and that an inner wall of the connection pipe extends without any discontinuities.
13. The heat pump as claimed in claim 12, wherein the eye-type shape comprises a first portion representing a segment of a circle that is defined by a condenser wall, and wherein the eye-type shape comprises a second portion which comprises a crescent-type shape whose curvature is more pronounced than that of the first portion.
14. The heat pump as claimed in claim 1, wherein the evaporator base comprises a reinforcement rib on a side pointing toward the evaporator space, the reinforcement rib connecting an outer side of the evaporator intake to an inner side of the connection pipe of the evaporator drain.
15. The heat pump as claimed in claim 1, wherein an upper side of the evaporator base that points toward the evaporator space is curved such that a region facing the evaporator drain is located lower down than a region arranged at a distance from the evaporator drain, so that a working liquid can flow from any position of the evaporator base to the evaporator drain due to gravity.
16. The heat pump as claimed in claim 1, wherein the evaporator base further comprises a first sensor connection for sensing a temperature within the condenser space and a second sensor connection for sensing a filling level within the evaporator space.
17. The heat pump as claimed in claim 1, wherein a cross-section of the evaporator intake continually expands from a connecting piece to an upper side of the evaporator base.
18. The heat pump as claimed in claim 1, wherein the condenser base or the evaporator base are formed from plastic.
19. The heat pump as claimed in claim 1, which further comprises a droplet separator comprising blades, the condenser base comprising, within a region pointing toward the evaporator base, grooves on an inner wall, within which grooves the blades of the droplet separator are attached.
20. The heat pump as claimed in claim 1, wherein the condenser base comprises, on a side pointing toward the condenser space, guiding features for holding hoses for condenser water guidance.
21. The heat pump as claimed in claim 1, wherein the condenser base comprises, apart from recesses, a round shape whose cross-section continually decreases in a direction from the evaporator base toward a suction opening of the evaporator.
22. The heat pump as claimed in claim 1, wherein the evaporator space is bounded, in the operating direction of the heat pump, by the evaporator base in the downward direction, and wherein the condenser base extends right up to the evaporator base.
23. A heat pump comprising: an evaporator for evaporating working liquid within an evaporator space bounded by an evaporator base; a condenser for condensing evaporated working liquid within a condenser space bounded by a condenser base; and a compressor for compressing evaporated working liquid from the evaporator space, wherein the evaporator space is at least partially surrounded by the condenser space, wherein the evaporator space is separated from the condenser space by the condenser base, wherein the condenser base is connected to the evaporator base, and wherein the condenser base comprises a condenser liquid distribution arrangement which comprises two or more feeding points, wherein the evaporator base comprises a split condenser connection comprising a first portion on a first side and one or more second portions on a second side, a number of the one or more second portions equaling a number of the feeding points, wherein the first portion comprises a connection pipe which comprises a connection that is round, wherein the one or more second portions are elliptical, and wherein principal axes of the one or more second portions are arranged in a mutually oblique manner, or wherein a condenser drain comprises, on a first side of the evaporator base, a connection pipe comprising a round connection and comprises, on a second side pointing toward the condenser space, an eye-type shape, the connection pipe being configured such that its cross-sectional area along the connection pipe to the round connection is the same within a tolerance of plus or minus 10% and that an inner wall of the connection pipe extends without any discontinuities, or wherein the evaporator base comprises an evaporator intake for the working liquid to be evaporated and an evaporator drain for the working liquid cooled by the evaporation, and wherein the evaporator base comprises a reinforcement rib on a side pointing toward the evaporator space, the reinforcement rib connecting an outer side of the evaporator intake to an inner side of the connection pipe of the evaporator drain, or wherein an upper side of the evaporator base that points toward the evaporator space is curved such that a region facing an evaporator drain is located lower down than a region arranged at a distance from the evaporator drain, so that a working liquid can flow from any position of the evaporator base to the evaporator drain due to gravity, or wherein the evaporator base further comprises a first sensor connection for sensing a temperature within the condenser space and a second sensor connection for sensing a filling level within the evaporator space.
Description
(1) Embodiments of the present invention will be detailed subsequently referring to the appended drawings, in which:
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DETAILED DESCRIPTION OF THE INVENTION
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(19) This interleaved or intermeshing arrangement of the condenser and the evaporator, which arrangement is characterized in that the condenser base is connected to the evaporator base, provides a particularly high level of heat pump efficiency and therefore enables a particularly compact design of a heat pump. In terms of order of magnitude, dimensioning of the heat pump, e.g., in a cylindrical shape, is such that the condenser wall 114 represents a cylinder having a diameter of between 30 and 90 cm and a height of between 40 and 100 cm. However, the dimensioning can be selected as a function of the power class of the heat pump that may be used, but will range within the dimensions mentioned. Thus, a very compact design is achieved which additionally is easy to produce at low cost since the number of interfaces, in particular for the evaporator space subjected to almost a vacuum, can be readily reduced when the evaporator base in accordance with embodiments of the present invention is configured such that it includes all of the liquid feed inlets/discharge outlets and such that, as a result, no liquid feed inlets/discharge outlets from the side or from the top may be used.
(20) In addition, it shall be noted that the operating direction of the heat pump is as shown in
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(22) As shown in
(23) As shown in
(24) Said evaporator-base bed plate includes bores 342 on which the typically cylindrical condenser wall can be mounted, as will be described below with reference to
(25) The evaporator base further includes a first connection interface 346 for attaching a condenser wall as well as a second connection interface 342 for attaching a condenser base.
(26) In embodiments, in the evaporator base, the first connection interface 346 for attaching the condenser wall is configured such that is surrounds the second connection interface 342 for attaching the condenser base. Moreover, the first connection interface 346 for attaching the condenser wall is configured to be flat in further embodiments, and the second connection interface 342 for attaching the condenser base is configured to protrude in relation to the first connection interface. This can be seen in
(27) The condenser intake and the condenser drain are arranged on the edge of the evaporator base, while for optimum evaporation, the evaporator intake and/or the evaporator drain are arranged within a central region of the evaporator base. In particular, the evaporator intake 301 is located centrally, i.e., in the center of the circular evaporator base, as can be seen particularly in
(28) Moreover, the region around the evaporator drain 312 is configured such that the level is lower than in the opposite region, so that the working liquid present on the evaporator base drains off toward the evaporator drain 312 from any position of the evaporator base and enters the drain pipe, if possible, without any cavitations and/or inevitable formation of eddies. This means that, for example within a region 343, the slope of the evaporator base toward the evaporator drain is less pronounced than within a region 344 since within the region 344 there is the problem that the drain 312 should be arranged as close as possible to the edge of the evaporator base in order to achieve good flow accumulation.
(29) In addition, the evaporator base further includes a first sensor connection 351 and a second sensor connection 352. The first sensor connection 351 serves to detect a filling level within the evaporator space. The second sensor connection 352 serves to detect a temperature within the condenser space. Similar to the connections 322, 332, it thus also comprises a recess 353 in the connection interface for the condenser base defining the evaporator space which during operation is almost under a vacuum. The connection interface 346, in contrast, is configured to be without any recesses and to be circular so that the condenser wall can be screwed on there, as the case may be, while using gaskets. However, the pressure within the condenser is not as low as that within the evaporator space, so that the requirements placed upon the connection via the interface 346 are substantially lower than those for the interface 340.
(30) The condenser intake 322 is configured to consist of several parts. It includes a first component 322a and a second component 322b as well as, depending on the implementation, a smaller third component 322c. The first connection 322a and the second connection 322b as well as the third connection 322c extend into a shared connection 322d on the other side of the evaporator base. The first side, i.e., the lower side of the evaporator base, thus comprises the circular connection 322d, which along the connection pipe 322e splits up into the three portions 322a, 322b, 322c, at a corresponding connection pipe 322e extending away from the evaporator base. Moreover, the condenser may have a condenser liquid distribution arrangement, as is schematically shown at 402 in
(31) As shown in
(32) In one embodiment, the condenser drain includes, on the upper side of the evaporator base, shown in
(33) In general, the condenser drain has a rather eye-type shape on the upper side and has a round shape on the lower side at the end of the nozzle 332a. In particular, the connection pipe is configured, along its extension, such that a cross-sectional area along the connection pipe from the upper side to the lower side and to the end of the nozzle is identical within a tolerance of 10% and that an inner wall of the connection pipe extends without any steps and discontinuities.
(34) In the implementation shown in
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(36) The condenser base has an almost chimney-type shape and extends from bottom to top, the cross-section continually decreasing from the bottom toward the top, so that the condenser base blends into a pipe having a relatively small cross-section as compared to the overall cross-section of the evaporator base, which pipe is shown at 115 in
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(39) Moreover, a grid 209 is arranged which is configured to support fillers not shown in
(40) The condenser of
(41) In addition, a vapor feeder is also provided which, as shown in
(42) What is not shown in
(43) Please refer to
(44) The upper region of the heat pump of
(45) In the embodiment shown in
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(47) The condenser base of
(48) Even though the evaporator base is described, e.g. in accordance with the implementation of
(49) In addition, the heat pump as is schematically shown in
(50) Examples of the present invention are set forth as follows: 1. Evaporator base comprising: an evaporator intake (301) for the working liquid to be evaporated; an evaporator drain (312) for a working liquid cooled by the evaporation; a condenser intake (322) for a condenser liquid; and a condenser drain (332) for a condenser liquid heated up due to the condensation, or wherein the evaporator intake (301), the evaporator drain (312), the condenser intake (322) and the condenser drain (332) are configured as passage openings within an evaporator-base bed plate. 2. Evaporator base of example 1, wherein the condenser intake (322) is arranged on the evaporator base (108) such that a connecting hose extending between the condenser intake and a liquid feed inlet into the condenser is arranged completely outside the evaporator space (102). 3. Evaporator base of examples 1 or 2, wherein the condenser intake (322) or the condenser drain (332) are arranged on an edge of the evaporator base (108) or wherein the evaporator intake (301) or the evaporator drain (312) are arranged in a central region of the evaporator base (108). 4. Evaporator base of any of examples 1 to 3, which comprises a shared portion (322d) on a first side and a split portion (322a, 322b) on a second side. 5. Evaporator base of example 4, wherein the split portion further comprises a further portion (322c) on the second side. 6. Evaporator base of any of examples 4 or 5, wherein the shared portion comprises a connection pipe (322e) which has a connection that is round, the split portions being elliptical, principal axes of the split portions (322a, 322b) being arranged in a mutually oblique manner. 7. Evaporator base of any of examples 1 to 6, wherein the condenser drain (332) comprises, on a first side of the evaporator base (108), a connection pipe (332a) having a round connection and comprises, on a second side, an eye-type shape, the connection pipe (332a) being configured such that its cross-sectional area along the connection pipe to the round connection is the same within a tolerance of plus or minus 10% and that an inner wall of the connection pipe (332a) extends without any discontinuities, 8. Evaporator base of example 7, wherein the eye-type shape comprises a first portion (332b) representing a segment of a circle that is defined by a condenser wall (114), and wherein the eye-type shape comprises a second portion (332c) which has a crescent-type shape whose curvature is more pronounced than that of the first portion (332b). 9. Evaporator base of any of examples 1 to 8, which comprises a reinforcement rib (360) on one side, the reinforcement rib (360) connecting an outer side of the evaporator intake to an inner side of the connection pipe of the evaporator drain. 10. Evaporator base of any of examples 1 to 9, wherein an upper side of the evaporator base is curved such that a region facing the evaporator drain is located lower down than a region arranged at a distance from the evaporator drain, so that a working liquid can flow, in a working position of the evaporator base, from any position of the evaporator base to the evaporator drain due to gravity. 11. Evaporator base of any of examples 1 to 10, wherein the evaporator base (108) further comprises a first sensor connection (351) for sensing a temperature within a condenser space (104) and a second sensor connection (352) for sensing a filling level within an evaporator space (102). 12. Evaporator base of any of examples 1 to 11, wherein a cross-section of an evaporator intake continually expands from a connecting piece (301a) to an upper side of the evaporator base. 13. Evaporator base of any of examples 1 to 12, which comprises a first connection interface (346) for attaching a condenser wall and a second connection interface (342) for attaching a condenser base. 14. Evaporator base of example 13, wherein the first connection interface (346) for attaching the condenser wall is configured such that it surrounds the second connection interface (342) for attaching the condenser base. 15. Evaporator base of examples 13 or 14, wherein the first connection interface (346) for attaching the condenser wall is configured to be flat and the second connection interface (342) for attaching the condenser base is configured to protrude in relation to the first connection interface. 16. Evaporator base of example 1 to 15, wherein the evaporator intake (301), the evaporator drain (312), the condenser intake (322) and the condenser drain (332) are configured as passage openings within an evaporator-base bed plate.
(51) While this invention has been described in terms of several embodiments, there are alterations, permutations, and equivalents which fall within the scope of this invention. It should also be noted that there are many alternative ways of implementing the methods and compositions of the present invention. It is therefore intended that the following appended claims be interpreted as including all such alterations, permutations and equivalents as fall within the true spirit and scope of the present invention.