CN117514791A - Expander, fluid machine and heat exchange device - Google Patents

Abstract

The invention provides an expander, a fluid machine and heat exchange equipment, wherein the expander comprises a cylinder, a swivel, a rotating shaft and a sliding vane, the swivel is movably arranged in the cylinder, the swivel is provided with an air inlet and an air outlet, the rotating shaft is arranged in the swivel and forms an expansion cavity with the swivel, the rotating shaft is in driving connection with the swivel through the sliding vane, the air inlet and the air outlet along the circumferential direction of the swivel are arranged at two sides of the sliding vane, the sliding vane can divide the expansion cavity into a first cavity and a second cavity and adjust the volumes of the first cavity and the second cavity, and the air inlet and the air outlet are periodically communicated with the first cavity. The expander, the fluid machine and the heat exchange equipment provided by the invention can solve the problems of limited design and low space utilization rate caused by the adoption of a multi-sliding-sheet structure arrangement of the expander in the prior art.

Description

Expander, fluid machine and heat exchange device

Technical Field

The invention relates to the technical field related to heat exchange equipment, in particular to an expander, a fluid machine and heat exchange equipment.

Background

In the current air conditioning system, most of the air conditioning systems adopt a throttling and depressurization mode of an expansion valve or a capillary tube, the process is an approximate isenthalpic process, is irreversible, fluid absorbs friction heat to generate useless gasification, and reduces the effective refrigerating capacity. In addition, useful work of the expansion process is also lost. Therefore, the energy efficiency of the air conditioning system can be improved by reducing the refrigeration capacity and expansion work loss caused by throttling, and an effective structure is needed to be designed to change the original isenthalpic throttling process into an isentropic expansion process and recover the expansion work in the isentropic expansion process.

An expander is one of the modes for realizing isentropic expansion, and can be understood as the reverse process of a compressor, and is therefore also classified into a positive displacement type, a speed type, and the like. The positive displacement expander uses natural expansion of fluid to do work, and the vane type expander is one of the forms of positive displacement expander. The compression of the positive displacement compressor has a pressure ratio design, the air suction is not required to be controlled, and the air discharge is controlled by a valve plate; the expansion process can be realized by controlling the suction volume in a fixed form when the expansion ratio is fixed, and theoretical calculation shows that the ratio of the suction volume to the expansion volume is less than 0.5.

At present, the vane type expander mainly adopts a multi-slide structure to realize the division of a cavity, and then realizes that the volume ratio of air suction and expansion is controlled by adopting a multi-slide, but the problem that the volume ratio of air suction and expansion is limited because of the control of a plurality of slide exists in the structural arrangement of the multi-slide, and the space utilization efficiency of the whole structure can be influenced by the arrangement of the multi-slide structure.

From the above, the expander in the prior art adopts the structure arrangement of multiple sliding sheets, which results in the problems of limited design and low space utilization.

Disclosure of Invention

The invention mainly aims to provide an expander, a fluid machine and heat exchange equipment, so as to solve the problems of limited design and low space utilization rate caused by the adoption of a multi-sliding-sheet structure arrangement of the expander in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided an expander including a cylinder; the swivel is movably arranged in the cylinder and is provided with an air inlet and an air outlet; the rotating shaft is arranged in the rotating ring and forms an expansion cavity with the rotating ring; the sliding vane, the pivot passes through the gleitbretter and is connected with the swivel drive, and circumference inlet port and the exhaust hole along the swivel set up in the both sides of gleitbretter, and the gleitbretter can be cut apart the expansion chamber and be first cavity and second cavity and adjust the volume of first cavity and second cavity, inlet port and exhaust hole periodicity and first cavity intercommunication.

Further, the air inlet hole and the air outlet hole are arranged at intervals along the height direction of the swivel.

Further, the rotating shaft is eccentrically arranged with the rotating ring, the rotating shaft is internally tangent to the rotating ring, an abutting end is formed at the internal tangent position, and when the sliding vane is positioned in the expansion cavity, a first cavity and a second cavity which are arranged in a sealing manner are formed between the circumferential abutting end of the rotating ring and the sliding vane.

Further, the expander further comprises a flange structure, the air cylinder and/or the flange structure are/is provided with an air inlet structure and an air outlet structure which are arranged at intervals along the height direction of the swivel, the air inlet structure can be communicated with the air inlet hole to supply fluid to the interior of the first cavity, and the air outlet structure can be communicated with the air outlet hole to discharge the fluid in the interior of the first cavity.

Further, the air inlet structure comprises an air inlet groove and an air suction channel, wherein the air inlet groove extends along the circumferential direction of the swivel at a first angle A, and the first angle A is more than 0 degrees and less than or equal to 180 degrees.

Further, the rotating shaft and the rotating ring are eccentrically arranged, the rotating shaft is internally tangent to the rotating ring, an abutting end is formed at the internal tangent position, and the air inlet groove is arranged in an area close to the abutting end along the circumferential direction of the rotating ring.

Further, the air outlet structure comprises an air outlet groove extending along the circumferential direction of the swivel and an air outlet channel communicated with the air outlet groove, and the air outlet groove is an annular groove.

Further, the air inlet structure is arranged on the air cylinder, and the air inlet hole extends along the radial direction of the swivel; and/or the air outlet structure is arranged on the air cylinder, and the air outlet hole extends along the radial direction of the swivel.

Further, an air inlet groove is arranged on the inner wall surface of the cylinder, the air inlet groove is arranged in the end area of the inner wall surface of the cylinder along the height direction of the cylinder, the air inlet groove is provided with a side opening facing the swivel and an end opening, and the plane of the end opening of the air inlet groove is coplanar with the end surface of the cylinder; or the air inlet groove is arranged in the middle area of the inner wall surface of the cylinder.

Further, the flange structure comprises a first flange, the first flange is arranged on the cylinder, the air inlet structure is arranged on the surface of the first flange facing the swivel, and at least one part of the air inlet hole extends along the axial direction of the swivel and can be communicated with an air inlet groove of the air inlet structure; and/or a second flange, the second flange is arranged on the cylinder, the air outlet structure is arranged on the surface of the second flange facing the swivel, and at least one part of the air outlet hole extends along the axial direction of the swivel and can be communicated with an air outlet groove of the air outlet structure.

Further, the expander is provided with an air suction state, an expansion state and an exhaust state, when the expander is in the air suction state, the volume of the first cavity starts to be increased along with the rotation of the sliding vane, and the air inlet structure is communicated with the first cavity through the air inlet hole so as to supply fluid to the interior of the first cavity; when the expander is in an expansion state, the air inlet structure is not communicated with the air inlet hole, and the volume of the first cavity is continuously increased so as to realize expansion fluid; when the expander is in an exhaust state, the air outlet structure is communicated with the first cavity through the exhaust hole, the sliding vane rotates, and the volume of the first cavity starts to be reduced so as to be used for discharging fluid in the first cavity.

Further, the inner wall surface of the cylinder is attached to the outer peripheral surface of the swivel and can rotate relatively.

Further, one end of the sliding vane is hinged with the swivel, a sliding vane groove is formed in the rotating shaft, and at least one part of the sliding vane extends into the sliding vane groove.

Further, one end of the sliding sheet far away from the rotating shaft is provided with a hinge protrusion, the rotating ring is provided with a hinge groove, the hinge protrusion and the hinge groove are equal in height to the sliding sheet, at least one part of the hinge protrusion extends into the hinge groove, and the hinge protrusion and the hinge groove are in hinge fit.

Further, the rotating shaft is provided with a sliding vane groove which extends along the radial direction of the rotating ring; and/or the height of the slide is the same as the height of the swivel.

According to another aspect of the present invention, there is provided a fluid machine comprising the expander described above.

According to another aspect of the present invention, there is provided a heat exchange device comprising a fluid machine as described above.

By applying the technical scheme of the invention, the expansion machine comprises a cylinder, a swivel, a rotating shaft and a sliding vane, wherein the swivel is movably arranged in the cylinder, the swivel is provided with an air inlet and an air outlet, the rotating shaft is arranged in the swivel and forms an expansion cavity with the swivel, the rotating shaft is in driving connection with the swivel through the sliding vane, the air inlet and the air outlet are arranged at two sides of the sliding vane along the circumferential direction of the swivel, the sliding vane can divide the expansion cavity into a first cavity and a second cavity and adjust the volumes of the first cavity and the second cavity, and the air inlet and the air outlet are periodically communicated with the first cavity.

From the above, the expansion machine of the application adopts the sliding vane to divide the expansion cavity, and the volume of the first cavity and the volume of the second cavity are periodically adjusted through the rotation of the sliding vane, so that the volume of the first cavity can be periodically increased and reduced, the effect that fluid enters the first cavity and expands in the first cavity can be realized in the process of increasing the volume of the first cavity, and the effect that the fluid is discharged after the expansion can be realized when the volume of the first cavity is reduced. The expansion machine does not need to adopt a plurality of sliding sheets to adjust an expansion cavity, and the problems of limited design and low space utilization rate caused by the sliding sheets in the prior art are overcome.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows an exploded view of the expander of the present invention;

FIG. 2 shows a cross-sectional view of the expander of the present invention;

FIG. 3 shows a cross-sectional view of the expander of the present invention in a suction state;

FIG. 4 shows a cross-sectional view of the expander of the present invention in an expanded state;

FIG. 5 shows another cross-sectional view of the expander of the present invention in an expanded state;

FIG. 6 shows a cross-sectional view of the expander of the present invention in an exhaust state;

FIG. 7 shows a schematic perspective view of a swivel of the present invention;

FIG. 8 shows a schematic perspective view of a slider of the present invention;

fig. 9 shows a schematic perspective view of a cylinder according to the invention, in which the air inlet channel is located in the end region of the cylinder;

fig. 10 shows a schematic perspective view of the cylinder of the present invention, in which the intake air groove is located in the middle region of the cylinder.

Wherein the above figures include the following reference numerals:

10. a cylinder; 110. an air inlet groove; 111. an air suction passage; 120. an exhaust groove; 121. an exhaust passage; 20. a swivel; 210. an air inlet hole; 220. an exhaust hole; 230. a hinge groove; 30. a rotating shaft; 310. a slide groove; 40. a sliding sheet; 410. a hinge protrusion; 50. a flange structure; 510. a first flange; 520. a second flange; 610. a first cavity; 620. and a second cavity.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

Example 1

In order to solve the problems of limited design and low space utilization rate caused by the adoption of a multi-sliding-sheet structure in the prior art, the invention provides an expander for expanding fluid.

As shown in fig. 1 to 10, the expander includes a cylinder 10, a swivel 20, a rotating shaft 30 and a sliding vane 40, the swivel 20 is movably disposed in the cylinder 10, the swivel 20 has an air inlet 210 and an air outlet 220, the rotating shaft 30 is disposed in the swivel 20 and forms an expansion chamber with the swivel 20, the rotating shaft 30 is in driving connection with the swivel 20 through the sliding vane 40, the air inlet 210 and the air outlet 220 are disposed at both sides of the sliding vane 40 along the circumference of the swivel 20, the sliding vane 40 can divide the expansion chamber into a first chamber 610 and a second chamber 620 and adjust the volumes of the first chamber 610 and the second chamber 620, and the air inlet 210 and the air outlet 220 are periodically communicated with the first chamber 610.

Specifically, the expansion machine of the present application adopts the sliding vane 40 to divide the expansion cavity, and the volume of the first cavity 610 and the volume of the second cavity 620 are periodically adjusted by the rotation of the sliding vane 40, so as to realize the periodic increase and decrease of the volume of the first cavity 610, wherein the effect that the fluid enters the first cavity 610 and expands in the first cavity 610 can be realized in the process of increasing the volume of the first cavity 610, and the effect of discharging the expanded fluid can be realized when the volume of the first cavity 610 decreases. The expansion machine does not need to adopt the multi-sliding vane 40 to adjust the expansion cavity, and solves the problems of limited design and low space utilization rate caused by the multi-sliding vane 40 in the prior art.

Further, the expander further comprises a flange structure 50, the flange structure 50 comprises a first flange 510 and a second flange 520, the first flange 510 and the second flange 520 are fixed on the cylinder 10, two end faces in the axial direction of the rotating shaft 30 and the rotating ring 20 are respectively attached to the first flange 510 and the second flange 520, and the rotating shaft 30 and the rotating ring 20 can rotate relative to the first flange 510 and the second flange 520. The first flange 510 and the second flange 520 are used to seal the expansion chamber such that the expansion chamber is a sealed chamber.

Further, the first cavity 610 and the second cavity 620 form an expansion cavity, and as the slide 40 rotates, the volume of the first cavity 610 increases, the volume of the corresponding second cavity 620 decreases, and as the volume of the first cavity 610 decreases, the volume of the corresponding second cavity 620 increases.

It should be noted that, this application is through setting up inlet port 210 and exhaust hole 220 at the both sides of gleitbretter 40 along the circumference of swivel 20, and then realize at gleitbretter 40 pivoted in-process, the first cavity 610 of gleitbretter 40 one side is unable intercommunication simultaneously with inlet port 210 and exhaust hole 220, and then ensured the action that the fluid got into the inside of first cavity 610 and the action of fluid at the inside inflation of first cavity 610 still have the action of fluid exhaust to go on in proper order, the phenomenon that the fluid simultaneously got into and the exhaust phenomenon can not appear leads to unable problem that reaches inflation fluid effect.

In this embodiment, the rotating shaft 30 is eccentrically disposed with respect to the swivel 20, the rotating shaft 30 is internally tangent to the swivel 20, and forms an abutting end at the internal tangent, and when the sliding vane 40 is located in the expansion chamber, a first cavity 610 and a second cavity 620 are formed between the sliding vane 40 and the abutting end along the circumferential direction of the swivel 20.

When the slide 40 and the abutting end are arranged at the interval, both the slide 40 and the abutting end have the function of stopping circulation, so that the first cavity 610 and the second cavity 620 are ensured to be sealed relatively and not to be air-crossed, and further the fluid expansion is realized through the change of the relative volumes of the first cavity 610 and the second cavity 620.

As shown in fig. 1 to 10, the intake holes 210 and the exhaust holes 220 are spaced apart in the height direction of the swivel 20.

Further, the air inlet holes 210 and the air outlet holes 220 are offset in the height direction so that the fluid does not interfere with the movement of the fluid into the first chamber 610 and the movement of the fluid out of the first chamber 610.

Further, the intake hole 210 is located above the exhaust hole 220.

In the present embodiment, the cylinder 10 is provided with an air inlet structure and an air outlet structure spaced along the height direction of the swivel 20, the air inlet structure can communicate with the air inlet hole 210 to supply fluid to the inside of the first cavity 610, and the air outlet structure can communicate with the air outlet hole 220 to discharge the fluid inside the first cavity 610.

Further, the air intake structure includes an air intake groove 110 extending in the circumferential direction of the swivel 20 by a first angle A of 0 DEG < A < 180 DEG, and an air intake passage 111 communicating with the air intake groove 110. Wherein the larger the first angle, the smaller the expansion ratio.

When the sliding vane 40 rotates, the air inlet 210 rotates along with the sliding vane, so that the air inlet 210 is communicated with the air inlet structure when the sliding vane is in the range of the first angle, and fluid enters the first cavity 610 from the air inlet 210. After the sliding vane 40 rotates beyond the first angle to make the air inlet hole 210 misplaced with the air inlet structure, the fluid stops entering the first cavity 610, expands the fluid with the increase of the first cavity 610, and after the first sliding vane 40 rotates for a circle, the first cavity 610 is communicated with the air outlet hole 220, and then the fluid is discharged through the air outlet hole 220 communicated with the air outlet structure.

In the present embodiment, the air intake groove 110 is provided in a region near the abutment end in the circumferential direction of the swivel 20. Specifically, the air intake groove 110 is provided in front of the abutment end in the rotation direction of the swivel 20 so that the air intake hole 210 can communicate with the air intake groove 110 when the first cavity 610 becomes large at the beginning, to facilitate the fluid to enter the first cavity 610.

As shown in fig. 1 to 10, the gas outlet structure includes a gas outlet groove 120 extending in the circumferential direction of the swivel 20 and a gas outlet passage 121 communicating with the gas outlet groove 120, the gas outlet groove 120 being a ring groove.

Specifically, the vent groove 120 is a ring groove, that is, when the vent hole 220 is in communication with the first cavity 610, the fluid in the first cavity 610 flows into the vent groove 120 through the vent hole 220 in real time, and then flows out through the vent passage 121.

In the present embodiment, the air intake structure and the air outlet structure are provided on the cylinder 10. Wherein, the air inlet 210 extends along the radial direction of the swivel 20, the air outlet 220 extends along the radial direction of the swivel 20, and the air inlet 210 and the air outlet penetrate through the swivel 20 to communicate with the air inlet structure and the air outlet structure, respectively.

Wherein the air inlet grooves 110 and the air outlet grooves are provided on the inner wall surface of the cylinder 10 and are spaced apart in the height direction of the cylinder 10.

The present embodiment provides the following two embodiments according to the arrangement positions of the air intake grooves 110.

In the embodiment shown in fig. 9, the intake groove 110 is provided in an end region of the inner wall surface of the cylinder 10, the intake groove 110 having a side opening toward the swivel 20 and an end opening, and a plane in which the end opening of the intake groove 110 is located is coplanar with the end surface of the cylinder 10.

Specifically, the end opening of the air intake duct 110 of the end region is adapted to cooperate with the flange structure 50 to block the end opening through the surface of the flange structure 50 in contact with the cylinder 10 so that the air intake duct 110 can communicate with the air intake ports 210 through the side opening.

In the embodiment shown in fig. 10, the air intake groove 110 is provided in a central region of the inner wall surface of the cylinder 10, and is opened toward the swivel 20 so that when the air intake hole 210 communicates with the air intake groove 110, fluid can flow into the interior of the first chamber 610 through the air intake groove 110 via the air intake hole 210.

In the present embodiment, the expander has an air suction state, an expansion state and an air discharge state, when the expander is in the air suction state, the volume of the first chamber 610 starts to be increased along with the rotation of the slide 40, and the air inlet structure is communicated with the first chamber 610 through the air inlet hole 210 to supply fluid to the interior of the first chamber 610; when the expander is in an expanded state, the air inlet structure is not communicated with the air inlet hole 210, and the volume of the first cavity 610 is continuously increased to realize expansion fluid; when the expander is in the exhaust state, the air outlet structure communicates with the first chamber 610 through the exhaust hole 220, the sliding vane 40 rotates, and the volume of the first chamber 610 starts to decrease for exhausting the fluid inside the first chamber 610.

Specifically, as the sliding vane 40 rotates, the first cavity 610 starts to form and gradually increases, and when the sliding vane 40 rotates until the air inlet 210 communicates with the air inlet 110, fluid enters the first cavity 610 through the air inlet 210, and the sliding vane 40 continuously rotates at a first angle, and the expander is in the air suction state. The sliding vane 40 continues to rotate, the air inlet hole 210 is dislocated with the air inlet groove 110, fluid stops entering the first cavity 610, and the volume of the first cavity 610 increases along with the rotation of the sliding vane 40, so that expansion is realized, and the expander is in an expansion state at the moment; after the sliding vane 40 rotates one circle, the exhaust hole 220 starts to be communicated with the first cavity 610, fluid in the first cavity 610 starts to be exhausted through the exhaust hole 220, along with the rotation of the sliding vane 40, the volume of the first cavity 610 is reduced to exhaust the fluid, the exhaust of the fluid is completed after the sliding vane 40 rotates one circle, and the exhaust state of the expander technology starts to be re-in to the next air suction state.

The present embodiment achieves fluid entering the first chamber 610, expanding, and fluid exiting the first chamber 610 by two rotations of the slide 40.

As shown in fig. 1 to 10, the inner wall surface of the cylinder 10 is attached to the outer circumferential surface of the swivel 20 and is rotatable relative to the outer circumferential surface of the swivel 20 so as to shield the air intake hole 210 on the swivel 20 by the attached inner wall surface of the cylinder 10, and thus the fluid is held in the first chamber 610 when the air intake hole 210 is not in communication with the air intake groove 110.

Further, one end of the sliding vane 40 is hinged to the swivel 20, the swivel shaft 30 is provided with a sliding vane groove 310, and at least a part of the sliding vane 40 extends into the sliding vane groove 310. The rotating shaft 30 can drive the rotating ring 20 to synchronously rotate through the sliding sheets 40 which are hinged.

Further, to ensure that the sliding vane 40 can separate the expansion chambers, the sliding vane 40 has a hinge protrusion 410 at an end remote from the rotation shaft 30, the rotation ring 20 has a hinge groove 230, the hinge protrusion 410 and the hinge groove 230 are at the same height as the sliding vane 40, at least a portion of the hinge protrusion 410 extends into the hinge groove 230, and the hinge protrusion 410 and the hinge groove 230 are hinge-engaged.

Further, the sliding vane groove 310 extends along the radial direction of the swivel 20, so that the sliding vane 40 can conveniently extend into the sliding vane groove 310, and the effect of separating the expansion chamber of the sliding vane 40 is achieved.

In this embodiment, the height of the sliding vane 40 is the same as that of the swivel 20, so as to ensure that the first cavity 610 and the second cavity 620 separated by the sliding vane 40 are relatively sealed, and further ensure that the fluid inside the first cavity 610 and the second cavity 620 is not communicated.

Example two

Unlike the first embodiment, in the present embodiment, the air inlet structure and the air outlet structure are provided on the flange structure 50.

Specifically, the flange structure 50 includes a first flange 510 and a second flange 520, the first flange 510 is disposed on the cylinder 10, the air intake structure is disposed on a surface of the first flange 510 facing the swivel 20, at least a portion of the air intake hole 210 extends in an axial direction of the swivel 20 and is communicable with the air intake groove 110 of the air intake structure, the second flange 520 is disposed on the cylinder 10, the air outlet structure is disposed on a surface of the second flange 520 facing the swivel 20, and at least a portion of the air outlet hole 220 extends in an axial direction of the swivel 20 and is communicable with the air outlet groove 120 of the air outlet structure.

Further, the air inlet 210 is disposed on the swivel 20, one end opening of the air inlet 210 is disposed on the inner wall surface of the swivel 20, and the other end opening of the air inlet 210 is disposed on the end surface of the swivel 20 facing the first flange 510, so that the air inlet 110 can inject fluid into the first cavity 610 through the air inlet 210.

Further, the air discharge hole 220 is provided on the swivel 20, one end opening of the air discharge hole 220 is provided on the inner wall surface of the swivel 20, and the other end opening of the air discharge hole 220 is provided on the end surface of the swivel 20 facing the second flange 520, so that the fluid inside the first chamber 610 can flow out of the air discharge groove 120 through the air discharge hole 220.

In this embodiment, the first flange 510 and the second flange 520 disposed at intervals along the height direction of the cylinder 10 correspond to the air inlet structure and the air outlet structure, respectively, so as to avoid the problem of interference between the air inlet structure and the air outlet structure.

Example III

Unlike the first embodiment, in the present embodiment, the air intake structure is provided on the cylinder 10, and the air outlet structure is provided on the flange structure 50.

Wherein the gas outlet structure is provided on the second flange 520 of the flange structure 50.

Specifically, the air inlet groove 110 is provided on the inner wall surface of the cylinder 10, the second flange 520 is provided on the cylinder 10, the air outlet structure is provided on the surface of the second flange 520 facing the swivel 20, and at least a portion of the air outlet hole 220 extends in the axial direction of the swivel 20 and can communicate with the air outlet groove 120 of the air outlet structure.

In the present embodiment, the air discharge hole 220 is provided on the swivel 20, one end opening of the air discharge hole 220 is provided on the inner wall surface of the swivel 20, and the other end opening of the air discharge hole 220 is provided on the end surface of the swivel 20 facing the second flange 520, so that the fluid inside the first chamber 610 can flow out of the air discharge groove 120 through the air discharge hole 220.

Example IV

Unlike the first embodiment, in the present embodiment, the air intake structure is provided on the flange structure 50, and the air outlet structure is provided on the cylinder 10.

Wherein the air intake structure is disposed on the first flange 510 of the flange structure 50.

Specifically, the first flange 510 is provided on the cylinder 10, and the intake structure is provided on a surface of the first flange 510 facing the swivel 20, and at least a portion of the intake hole 210 extends in the axial direction of the swivel 20 and is capable of communicating with the intake groove 110 of the intake structure. The exhaust groove 120 is provided on the inner wall surface of the cylinder 10.

In this embodiment, the air intake hole 210 is disposed on the swivel 20, one end opening of the air intake hole 210 is disposed on the inner wall surface of the swivel 20, and the other end opening of the air intake hole 210 is disposed on the end surface of the swivel 20 facing the first flange 510, so that the air intake slot 110 can inject fluid into the first cavity 610 through the air intake hole 210.

Example five

The present invention provides a fluid machine including an expander according to any one of the first to fourth embodiments.

Example six

The invention provides heat exchange equipment, which comprises a fluid machine in a fifth embodiment.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

the expansion machine of the application adopts the sliding vane 40 to divide the expansion cavity, and the volume of the first cavity 610 and the volume of the second cavity 620 are periodically adjusted through the rotation of the sliding vane 40, so that the volume of the first cavity 610 can be periodically increased and reduced, the effect that fluid enters the first cavity 610 and expands in the first cavity 610 can be realized in the process of increasing the volume of the first cavity 610, and the effect that the expanded fluid is discharged can be realized when the volume of the first cavity 610 is reduced. The expansion machine does not need to adopt the multi-sliding vane 40 to adjust the expansion cavity, and solves the problems of limited design and low space utilization rate caused by the multi-sliding vane 40 in the prior art.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (17)

1. An expander, comprising:

a cylinder (10);

the rotary ring (20), the rotary ring (20) is movably arranged in the cylinder (10), and the rotary ring (20) is provided with an air inlet hole (210) and an air outlet hole (220);

the rotating shaft (30) is arranged in the rotating ring (20) and forms an expansion cavity with the rotating ring (20);

the sliding vane (40), pivot (30) pass through sliding vane (40) with swivel (20) drive connection, follow the circumference of swivel (20) inlet port (210) with exhaust hole (220) set up both sides of sliding vane (40), sliding vane (40) can with expansion chamber is cut apart into first cavity (610) and second cavity (620) and is adjusted first cavity (610) with the volume of second cavity (620), inlet port (210) with exhaust hole (220) periodicity with first cavity (610) intercommunication.

2. The expander according to claim 1, wherein the intake hole (210) and the exhaust hole (220) are provided at intervals in a height direction of the swivel (20).

3. The expander according to claim 1, wherein the rotary shaft (30) is eccentrically disposed with respect to the swivel (20), the rotary shaft (30) is internally disposed inside the swivel (20) and forms an abutment end at an internal tangent, and the first cavity (610) and the second cavity (620) are formed in a sealing arrangement between the abutment end and the slide (40) in a circumferential direction of the swivel (20) when the slide (40) is disposed inside the expansion chamber.

4. The expander according to claim 1, further comprising a flange structure (50), wherein the cylinder (10) and/or the flange structure (50) are provided with an air inlet structure and an air outlet structure arranged at intervals along the height direction of the swivel (20), the air inlet structure being communicable with the air inlet hole (210) to supply fluid to the interior of the first chamber (610), and the air outlet structure being communicable with the air outlet hole (220) to discharge the fluid inside the first chamber (610).

5. The expander according to claim 4, wherein the air intake structure includes an air intake groove (110) extending circumferentially of the swivel (20) by a first angle a,0 ° < a+.ltoreq.180°, and an air intake passage (111) communicating with the air intake groove (110).

6. The expander according to claim 5, wherein the rotary shaft (30) is disposed eccentrically to the swivel (20), the rotary shaft (30) is internally inscribed in the swivel (20) and forms an abutment end at the internal tangent, and the air intake groove (110) is disposed in a region near the abutment end in the circumferential direction of the swivel (20).

7. The expander according to claim 4, wherein the gas outlet structure comprises a gas outlet groove (120) extending circumferentially along the swivel (20) and a gas outlet passage (121) communicating with the gas outlet groove (120), the gas outlet groove (120) being a ring groove.

8. The expander according to claim 4,

the air inlet structure is arranged on the air cylinder (10), and the air inlet hole (210) extends along the radial direction of the swivel (20); and/or

The air outlet structure is arranged on the air cylinder (10), and the air outlet hole (220) extends along the radial direction of the swivel (20).

9. The expander according to claim 5, wherein the air intake groove (110) is provided on an inner wall surface of the cylinder (10) in a height direction of the cylinder (10),

the air inlet groove (110) is arranged in an end region of the inner wall surface of the cylinder (10), the air inlet groove (110) is provided with a side opening and an end opening which face the swivel (20), and the plane of the end opening of the air inlet groove (110) is coplanar with the end surface of the cylinder (10); or alternatively

The air inlet groove (110) is arranged in the middle area of the inner wall surface of the cylinder (10).

10. The expander of claim 4, wherein the flange structure (50) comprises:

a first flange (510), the first flange (510) is disposed on the cylinder (10), the air inlet structure is disposed on a surface of the first flange (510) facing the swivel (20), and at least a part of the air inlet hole (210) extends along an axial direction of the swivel (20) and can be communicated with an air inlet groove (110) of the air inlet structure; and/or

And the second flange (520) is arranged on the cylinder (10), the air outlet structure is arranged on the surface of the second flange (520) facing the swivel (20), and at least one part of the air outlet hole (220) extends along the axial direction of the swivel (20) and can be communicated with the air outlet groove (120) of the air outlet structure.

11. The expander of claim 4, wherein the expander has a suction state, an expanded state and a discharge state,

when the expander is in the suction state, the volume of the first cavity (610) starts to be increased along with the rotation of the sliding vane (40), and the air inlet structure is communicated with the first cavity (610) through the air inlet hole (210) so as to supply fluid to the interior of the first cavity (610);

when the expander is in the expansion state, the air inlet structure is not communicated with the air inlet hole (210), and the volume of the first cavity (610) is continuously increased so as to realize expansion fluid;

when the expander is in the exhaust state, the air outlet structure is communicated with the first cavity (610) through an exhaust hole (220), the sliding sheet (40) rotates, and the volume of the first cavity (610) starts to be reduced so as to be used for exhausting fluid in the first cavity (610).

12. The expander according to any one of claims 1 to 11, wherein an inner wall surface of the cylinder (10) is fitted to an outer peripheral surface of the swivel (20) and rotatable relative thereto.

13. The expander according to any one of claims 1 to 11, wherein one end of the slide (40) is hinged to the swivel (20), the swivel shaft (30) has a slide groove (310) thereon, and at least a portion of the slide (40) extends into the slide groove (310).

14. The expander according to claim 13, wherein an end of the slide (40) remote from the rotary shaft (30) has a hinge protrusion (410), the rotary ring (20) has a hinge groove (230), the hinge protrusion (410) and the hinge groove (230) are at the same height as the slide (40), at least a portion of the hinge protrusion (410) protrudes into the hinge groove (230), and the hinge protrusion (410) and the hinge groove (230) are hinge-fitted.

15. An expander according to any one of claims 1 to 11,

the rotating shaft (30) is provided with a sliding vane groove (310), and the sliding vane groove (310) extends along the radial direction of the rotating ring (20); and/or

The height of the sliding sheet (40) is the same as that of the swivel (20).

16. A fluid machine comprising an expander according to any one of claims 1 to 15.

17. A heat exchange device comprising the fluid machine of claim 16.