One illustrative cyclone separator disclosed herein includes an outer body, an inner body positioned at least partially within the outer body, an internal flow path within the inner body, the internal flow path having a fluid entrance and a fluid outlet, a first fluid flow channel between the inner body and the outer body, and a re-entrant fluid opening that extends through the outer body and is in fluid communication with the fluid flow channel, wherein the re-entrant fluid opening is positioned at a location upstream of the fluid entrance of the internal flow path in the inner body.

One illustrative cyclone separator disclosed herein includes an outer body, an inner body positioned at least partially within the outer body, an internal flow path within the inner body, the internal flow path having a fluid entrance and a fluid outlet, a first fluid flow channel between the inner body and the outer body, and a re-entrant fluid opening that extends through the outer body and is in fluid communication with the fluid flow channel, wherein the re-entrant fluid opening is positioned at a location upstream of the fluid entrance of the internal flow path in the inner body.

The present invention discloses a high-stability shale gas desanding device with a gravel storage mechanism, comprising a shale gas desanding assembly, a driving assembly, a flow stirring assembly and a flow guide assembly, wherein the shale gas desanding assembly comprises an outer side gas-solid separation tank, an inner side gas-solid separation tank is sleeved inside the outer side gas-solid separation tank, the inner side gas-solid separation tank is communicated with a shale gas mixture ingress pipe of the flow guide assembly, a top of the shale gas desanding assembly is communicated with an interior of the outer side gas-solid separation tank through a first pressure balance pipe, the outer side gas-solid separation tank is communicated with the shale gas mixture ingress pipe through a second pressure balance pipe, a pressure regulation and control assembly is arranged on the second pressure balance pipe.

The present invention discloses a high-stability shale gas desanding device with a gravel storage mechanism, comprising a shale gas desanding assembly, a driving assembly, a flow stirring assembly and a flow guide assembly, wherein the shale gas desanding assembly comprises an outer side gas-solid separation tank, an inner side gas-solid separation tank is sleeved inside the outer side gas-solid separation tank, the inner side gas-solid separation tank is communicated with a shale gas mixture ingress pipe of the flow guide assembly, a top of the shale gas desanding assembly is communicated with an interior of the outer side gas-solid separation tank through a first pressure balance pipe, the outer side gas-solid separation tank is communicated with the shale gas mixture ingress pipe through a second pressure balance pipe, a pressure regulation and control assembly is arranged on the second pressure balance pipe.

A centrifugal separation type oil separator includes an oil separator body having a cylindrical body portion, and a bent pipe provided on an outer peripheral side of the body portion to surround the body portion in a circumferential direction, to introduce a fluid containing an oil into the oil separator body. The bent pipe includes an outer wall portion extending in the circumferential direction of the body portion and expanding radially outward from the body portion, and an inner wall portion extending along the outer wall portion and blocking an open part of the outer wall portion. The outer wall portion and the inner wall portion are formed by different members. An upper side of the body portion is open. The oil separator body has an upper cover blocking an open portion of the body portion. The inner wall portion and the upper cover are formed by an integral member.

A centrifugal separation type oil separator includes an oil separator body having a cylindrical body portion, and a bent pipe provided on an outer peripheral side of the body portion to surround the body portion in a circumferential direction, to introduce a fluid containing an oil into the oil separator body. The bent pipe includes an outer wall portion extending in the circumferential direction of the body portion and expanding radially outward from the body portion, and an inner wall portion extending along the outer wall portion and blocking an open part of the outer wall portion. The outer wall portion and the inner wall portion are formed by different members. An upper side of the body portion is open. The oil separator body has an upper cover blocking an open portion of the body portion. The inner wall portion and the upper cover are formed by an integral member.

A cyclone separator useable in a surface cleaning apparatus comprises a cyclone chamber and a dirt collection chamber exterior to, and surrounding at least a portion of the cyclone chamber. The dirt collection chamber is in communication with the cyclone chamber via a dirt outlet. An air flow passage extending to the cyclone air inlet travels generally axially through the dirt collection chamber.

The present invention refers to an accelerating cyclone that separates solid particles, comprising in its general structure a lower conical body (1) (17A and 17B), comprising a lower opening (18), a central cylindrical body (2) immediately above the conical body (1) whose diameter is smaller than the largest diameter of the conical body cone (1), and a third upper, also cylindrical, body (3) of smaller diameter than the diameter of the central cylindrical body (2), comprising a side opening for the acceleration air output (5); where the cylindrical central body (2) allows to accelerate the speed of the solid material particles and is the cyclone pressure chamber; and where said cylindrical central body (2) comprises a side opening for the acceleration air input (8) and at least one duct (9).

The present invention refers to an accelerating cyclone that separates solid particles, comprising in its general structure a lower conical body (1) (17A and 17B), comprising a lower opening (18), a central cylindrical body (2) immediately above the conical body (1) whose diameter is smaller than the largest diameter of the conical body cone (1), and a third upper, also cylindrical, body (3) of smaller diameter than the diameter of the central cylindrical body (2), comprising a side opening for the acceleration air output (5); where the cylindrical central body (2) allows to accelerate the speed of the solid material particles and is the cyclone pressure chamber; and where said cylindrical central body (2) comprises a side opening for the acceleration air input (8) and at least one duct (9).

The invention relates to a vortex degassing device (1) for a fluid transfer circuit (F1, F2), in particular of a motor vehicle, this device (1) comprising: a first internal chamber (10) connected to a first inlet (11) for a fluid (F1) as well as to a first outlet (12) for a liquid fraction and to a second outlet (13) for a gaseous fraction, a second internal chamber (20) connected to a second inlet (21) for a fluid (F2) as well as to a third outlet (22) for a liquid fraction and to a fourth outlet (23) for a gaseous fraction,
the second chamber (20) being located above the first chamber (10) and the second outlet (13) extending through the second chamber (20) to the level of the fourth outlet (23). The invention also relates to a fluid transfer circuit comprising at least one such device (1) as well as a method for using such a device (1).