CONDENSING BOILER EMPLOYING EVAPORATION DEVICE

Abstract

The purpose of the present invention is to provide a condensing boiler employing an eco-friendly evaporation device, in which condensed water generated in a latent heat exchanger is removed by using the evaporation device, so that the condensing boiler can be installed in a site without a processing facility for discharging condensed water and contribute to energy saving. For implementation thereof, the present invention comprises: a blower (110) for supplying a supply-air; a sensible heat exchanger (140) for absorbing combustion sensible heat generated in a combustion chamber (130) by combustion by a burner (120); a latent heat exchanger (150) for absorbing latent heat of steam included in combustion gas which has finished heat exchange in the heat sensible exchanger (140); and an evaporation device (160) which absorbs condensed water generated in the latent heat exchanger (150), and has an evaporation type humidifier (161) for evaporating and removing the absorbed condensed water by using air supplied from the blower (110).

Claims

1. A condensing boiler configured to employ an evaporation device, comprising: a blower (110) configured to supply a supply-air a sensible heat exchanger (140) configured to absorb combusted sensible heat generated in a combustion chamber (130) by combustion of a burner (120); a latent heat exchanger (150) configured to absorb latent heat of vapor included in combustion gas heat-exchanged in the sensible heat exchanger (140); and an evaporation device (160) including an evaporative humidifier (161) configured to absorb condensate generated in the latent heat exchanger (150), and evaporate and remove the absorbed condensate using the air supplied from the blower (110).

2. The condensing boiler of claim 1, wherein filters (161a) stacked in a ventilable corrugated structure and formed of cellulose and any one material among PET, PP, nylon, and rayon are provided in the evaporative humidifier (161).

3. The condensing boiler of claim 2, wherein the evaporative humidifier (161) has a supporting body (161b) for reinforcement between the neighboring filters (161a).

4. The condensing boiler of claim 1, wherein the evaporative humidifier (161) is detachably coupled to the inside of the evaporation device (160).

5. The condensing boiler of claim 4, wherein: a seating part (162) configured to support both bottom surfaces of the evaporative humidifier (161) is provided in the evaporation device (160); and a cover (163) configured to open and close a space (163a) through which the evaporative humidifier (161) enters and exits is provided at a front surface of the evaporation device (160).

6. The condensing boiler of claim 1, wherein a water level sensor (164) consisting of a high water level sensor (164a) and a low water level sensor (164b) configured to sense a level of the condensate is provided in the evaporation device (160).

7. The condensing boiler of claim 6, further comprising an alert generation part (190) controlled to issue an alert when the condensate is sensed at the high water level sensor (164a).

8. The condensing boiler of claim 6, wherein the blower (110) is controlled to stop operating when the condensate is not sensed at the low water level sensor (164b) due to evaporation thereof.

9. The condensing boiler of claim 6, wherein the blower (110) is controlled to stop operating after being operated for a set time when the condensate is not sensed at the low water level sensor (164b) due to evaporation thereof.

10. The condensing boiler of claim 6, wherein a bottom of the evaporation device (160) is formed of an inclined surface (160b) having a downward slope toward a side at which the water level sensor (164) is provided.

11. The condensing boiler of claim 1, wherein a temperature sensor (165) configured to sense a temperature of the condensate is provided in the evaporation device (160).

12. The condensing boiler of claim 11, wherein the burner (120) is controlled to perform a combustion operation when the temperature of the condensate sensed at the temperature sensor (165) is lower than a set temperature.

13. The condensing boiler of claim 1, wherein a damper (166) configured to open and close a vent so that air is accessible is provided at a side surface of the evaporation device (160).

14. The condensing boiler of claim 1, wherein a visible window (167) configured to observe the inside of the evaporation device (160) with the naked eye is provided at a front surface of the evaporation device (160).

Description

DESCRIPTION OF DRAWINGS

[0035] FIG. 1 is a configuration diagram of a condensing gas water heater according to the related art.

[0036] FIG. 2 is a configuration diagram of a condensing boiler configured to employ an evaporation device according to the present invention.

[0037] FIG. 3 is a side view of the evaporation device shown in FIG. 2.

[0038] FIG. 4 is a side view showing a state in which an evaporative humidifier is separated from the evaporation device.

[0039] FIG. 5 is a partial perspective view of the evaporative humidifier.

[0040] FIG. 6 is a view in which a supporting body is provided in the evaporative humidifier.

[0041] FIG. 7 is a control block diagram of the condensing boiler configured to employ the evaporation device according to the present invention.

[0042]

TABLE-US-00001 Reference numerals 100: condensing boiler 110: blower 120: burner 130: combustion chamber 140: sensible heat exchanger 150: latent heat exchanger 160: evaporation device 160a: condensate accommodation space 160b: inclined surface 161: evaporative humidifier 161a: cellulose filter 162: seating part 163: cover 164: water level sensor 164a: high water level sensor 164b: low water level sensor 165: temperature sensor 166: damper 167: visible window 170: discharge duct 180: control part 190: alert generation part

MODES OF THE INVENTION

[0043] Hereinafter, a configuration and an action of an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0044] Referring to FIG. 2, a condensing boiler 100 configured to employ an evaporation device according to the present invention includes a blower 110 configured to supply a supply-air, a burner 120 configured to ignite a fuel-air mixture of combustion gas and the air supplied from the blower 110, a combustion chamber 130 in which the mixture is combusted, a sensible heat exchanger 140 configured to absorb sensible heat of combustion gas generated in the combustion chamber 130 to heat a heat medium, a latent heat exchanger 150 configured to absorb latent heat of vapor included in the combustion gas heat-exchanged in the sensible heat exchanger 140, an evaporation device 160 configured to absorb condensate generated in the latent heat exchanger 150 and evaporate and remove the absorbed condensate using the air supplied from the blower 110, a discharge duct 170 through which the combustion gas and the vapor which pass through the evaporation device 160 are discharged, and a control part 180 configured to control an operation of the condensing boiler 100.

[0045] Referring to FIGS. 3 to 7, an evaporative humidifier 161 capable of absorbing condensate collected in a condensate accommodation space 160a, filtering foreign matter included in the condensate, and evaporating and draining only moisture is provided in the evaporation device 160.

[0046] As an example, as shown in FIG. 5, the evaporative humidifier 161 may be formed with a ventilable corrugated structure and stacked, and may include filters 161a made of a cellulose material. As described above, when each of the filters 161a made of a cellulose material includes the corrugated structure, an absorption and storing performance of the condensate and a spreading characteristic of water toward whole surfaces of the filters 161a may be improved by maximizing surface areas of the filters 161a to efficiently remove the condensate. Further, the filters 161a may be formed of one polymer material among PET, PP, nylon, and rayon to improve durability. In addition, as shown in FIG. 6, a supporting body 161b may be used for reinforcement in a vertical direction between neighboring filters 161a. The filters 161a are in contact with both side surfaces of the supporting body 161b to improve stability of the structure.

[0047] Further, since spaces through which the combustion gas passes may be sufficiently secured between the filters 161a stacked with the corrugated structure, pressure loss generated during a flow of the combustion gas may be minimized, and accordingly, the combustion gas may be smoothly exhausted and additional power consumption may be prevented by minimizing the load of the blower 110.

[0048] In addition, when the evaporative humidifier 161 is employed, the moisture absorbed in the filters 161a is evaporated by the air supplied from the blower 110, and in this case, since water molecules are spaced one by one from the surfaces of the filters 161a to be evaporated, sizes of particles of vapor evaporated from the filters 161a may become very small to prevent a problem in which various types of foreign matter such as bacteria, dust, and the like are attached to and discharged with the particles of the vapor.

[0049] Accordingly, when an ultrasonic humidification module is employed in the related art, the foreign matter is included in and discharged with the particles of the evaporated vapor and thus causes environmental pollution. However, the present invention may solve a problem in which only pure water molecules are evaporated and discharged, and then reintroduced into a room in a droplet state by employing the evaporative humidifier 161 in the evaporation device 160.

[0050] Referring to FIG. 4, the evaporative humidifier 161 is coupled to the inside of the evaporation device 160 in a detachable structure. To this end, a seating part 162 configured to support both bottom surfaces of the evaporative humidifier 161 so that the evaporative humidifier 161 may enter and exit along frontward and backward directions in a sliding manner is provided in the evaporation device 160.

[0051] Further, a cover 163 configured to open and close a space 163a through which the evaporative humidifier 161 enters and exits is provided at a front surface of the evaporation device 160.

[0052] As described above, since the evaporative humidifier 161 includes the structure which is detachable from the inside of the evaporation device 160, maintenance of the evaporation device 160 and a process of replacing the evaporative humidifier 161 may be easily performed and thus convenience of use may be improved.

[0053] Meanwhile, a water level sensor 164 configured to sense a water level of the condensate collected in the condensate accommodation space 160a is provided in the evaporation device 160.

[0054] The water level sensor 164 may include a high water level sensor 164a and a low water level sensor 164b provide at locations vertically spaced apart from each other. Further, since the bottom of the evaporation device 160 is formed of an inclined surface 160b having a downward slope toward a side at which the water level sensor 164 is provided, the condensate collected in the condensate accommodation space 160a is guided to move in a direction toward the water level sensor 1, and thus the water level of the condensate may be quickly sensed.

[0055] When condensate is sensed at the high water level sensor 164a, the control part 180 controls an alert generation part 190 to issue an alert, and thus a user who recognizes the alert may quickly take measures for removing the condensate.

[0056] When the condensate is not sensed at the low water level sensor 164b due to evaporation thereof, the control part 180 controls the blower 110 so that an operation of the blower 110 is stopped, and thus power consumption due to an unnecessary operation of the blower 110 is prevented.

[0057] When the condensate is not sensed at the low water level sensor 164b due to the evaporation thereof, the control part 180 may control the blower 110 so that an operation of the blower 110 is stopped after being additionally operated for a set time to evaporate and remove even moisture of the condensate which remains in the filters 161a.

[0058] Meanwhile, a temperature sensor 165 configured to sense a temperature of the condensate is provided in the evaporation device 160. When only the blower 110 is operated to remove the condensate in an environment in which a temperature of external air is low as in the winter season, freezing and bursting of the boiler may be caused.

[0059] In order to prevent the above-described problem, when the temperature sensed at the temperature sensor 165 is lower than or equal to a set temperature, since the burner 120 is controlled to perform a combustion operation by operating the boiler with a set minimum heat quantity, the temperature of heating water is operated at a temperature at which condensate is not generated to remove the remaining condensate.

[0060] Meanwhile, a damper 166 configured to open and close a vent so that air is accessible may be provided at a side surface of the evaporation device 160. The damper 166 may be closed in the case in which a risk of freezing and bursting is not present other than winter and may be opened in the case in which the risk of freezing and bursting is present as in the winter season so that the condensate which remains in the evaporation device 160 while an operation of the boiler is stopped may be evaporated by circulation of the air.

[0061] A visible window 167 configured to allow the inside of the evaporation device 160 to be observable by the naked eye may be provided at a front surface of the evaporation device 160. The user may check whether the condensate remains in the evaporation device 160 and a state of each of the filters 161a through the visible window 167 and perform necessary maintenance work.

[0062] As described above, in the present invention, since the evaporation device 160 including the evaporative humidifier 161 is applied, the condensing boiler 100 may be allowed to be installed in the field without a condensate drainage processing facility to contribute to energy saving and environment protection.

[0063] Further, although an example of the condensing boiler is described in the present description, the present invention may also be applied to a condensing water heater.

[0064] As described above, the present invention is not limited to the above-described embodiment, it will be apparent to those skilled in the art that the present invention may be modified without departing from the spirit of the present invention in the claims, and the modification is included in the scope of the present invention.