CN219774379U - Energy recovery type expansion valve - Google Patents
Energy recovery type expansion valve Download PDFInfo
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- CN219774379U CN219774379U CN202321113159.5U CN202321113159U CN219774379U CN 219774379 U CN219774379 U CN 219774379U CN 202321113159 U CN202321113159 U CN 202321113159U CN 219774379 U CN219774379 U CN 219774379U
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- compression
- expansion
- expansion valve
- transmission shaft
- valve
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- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 55
- 230000006835 compression Effects 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 38
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an energy recovery type expansion valve, which comprises a valve seat, wherein an expansion valve shell is arranged at one end of the valve seat, an expansion inlet and an expansion outlet are arranged on the expansion valve shell, a compression valve shell is arranged at the other end of the valve seat, and a compression inlet and a compression outlet are arranged on the compression valve shell; a transmission shaft is also rotatably arranged on the valve seat, and two ends of the transmission shaft respectively extend into the expansion valve casing and the compression valve casing; the turbine disc assembly is arranged at one end of the transmission shaft, which stretches into the expansion valve casing, the centrifugal assembly is arranged at one end of the transmission shaft, which stretches into the compression valve casing, and the turbine disc assembly, the transmission shaft and the centrifugal assembly can synchronously rotate. The utility model can fully utilize the energy released by the refrigerant in the throttling and depressurization process, thereby reducing the energy consumption and further reducing the use cost of the refrigerating system.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an energy recovery type expansion valve.
Background
The expansion valve is an important component in the refrigeration system and is typically mounted between the accumulator and the evaporator. The expansion valve throttles the medium-temperature high-pressure liquid refrigerant into low-temperature low-pressure wet steam, then the refrigerant absorbs heat in the evaporator to achieve a refrigerating effect, and the expansion valve controls the flow of the valve through the superheat degree change of the tail end of the evaporator to prevent the phenomenon of underutilization of the area of the evaporator and knocking; the main functions of the method include: throttling action: the high-temperature high-pressure liquid refrigerant is throttled by the throttle hole of the expansion valve to become low-temperature low-pressure vaporous hydraulic refrigerant, so that conditions are created for evaporation of the refrigerant; controlling the flow rate of the refrigerant: after passing through the evaporator, the liquid refrigerant entering the evaporator evaporates from a liquid state into a gaseous state, absorbs heat and reduces the temperature of the environment.
The existing expansion valve mainly comprises a valve body, a temperature sensing bulb and a balance pipe, wherein in the working process, the opening of the valve body is controlled through the temperature sensing bulb, so that the flow of the refrigerant is controlled, and the outlet of the evaporator is ensured to be completely gaseous refrigerant; if the flow is too large, the outlet contains liquid refrigerant, and the liquid refrigerant can enter the compressor to generate liquid impact; if the flow of the refrigerant is too small, the refrigerant is evaporated in advance, and the refrigeration is insufficient.
However, the existing expansion valve is completely dependent on the expansion valve in the refrigerant flow control, and in the use process, after the refrigerant absorbs heat through the evaporator, the power at the outlet of the evaporator is lower, and although the flow rate of the refrigerant can be improved after the compressor works, the energy consumption of the compressor can be greatly increased. Meanwhile, in the throttling and depressurization process of the existing expansion valve, high-pressure energy of the liquid refrigerant is basically completely wasted.
Therefore, how to provide an expansion valve capable of effectively improving the energy utilization rate and reducing the energy consumption has become a technical problem which needs to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to solve the problems of the existing expansion valve that the structure is complex, the working stability is poor, the energy waste is large and the energy consumption of the whole refrigeration system is high.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides an energy recuperation formula expansion valve, includes the disk seat, is equipped with expansion valve casing in the one end of disk seat, is equipped with expansion inlet and expansion outlet on expansion valve casing, its characterized in that: the other end of the valve seat is provided with a compression valve shell, and a compression inlet and a compression outlet are arranged on the compression valve shell;
a transmission shaft is also rotatably arranged on the valve seat, and two ends of the transmission shaft respectively extend into the expansion valve casing and the compression valve casing; the turbine disc assembly is arranged at one end of the transmission shaft, which stretches into the expansion valve casing, the centrifugal assembly is arranged at one end of the transmission shaft, which stretches into the compression valve casing, and the turbine disc assembly, the transmission shaft and the centrifugal assembly can synchronously rotate.
Further, the turbine disk assembly comprises a turbine disk and a plurality of turbine blades axially distributed along the turbine disk; the turbine blades are sleeved on the turbine disc and fixedly connected with the turbine disc, and a gap is reserved between the outer edge of each turbine blade and the inner wall of the expansion valve shell; a plurality of through holes are formed in the turbine blades, close to the inner holes, around the inner holes in a circle, and the through holes in the turbine blades are opposite to each other; the turbine disc is fixedly connected with the transmission shaft.
Further, there is a gap between two adjacent turbine blades.
Further, the expansion inlet is communicated with the side wall of the expansion valve casing, the axial lead of the expansion inlet is parallel to the tangent line of the turbine blade, and at least part of the expansion inlet is opposite to the position, close to the outer edge, of the turbine blade, so that the fluid entering through the expansion inlet can act on the turbine blade; the expansion outlet communicates with a side of the expansion valve housing facing away from the valve seat.
Further, a first collecting chamber protruding outwards is formed on the side of the expansion valve housing facing away from the valve seat, and the expansion outlet communicates with the first collecting chamber.
Further, the centrifugal assembly adopts a centrifugal impeller which is fixedly connected with the transmission shaft.
Further, the compression inlet is communicated with one side of the compression valve casing, which is away from the valve seat, the compression outlet is communicated with the side wall of the compression valve casing, and the axial lead of the compression inlet is parallel to the tangent line of the centrifugal impeller and is close to the outer edge of the centrifugal impeller.
Further, a second collecting chamber protruding outwards is formed on the side of the compression valve housing facing away from the valve seat, said compression inlet being in communication with the second collecting chamber.
Further, a bearing is arranged between the transmission shaft and the valve seat, two ends of the transmission shaft are respectively provided with a supporting sleeve, and the sleeves are correspondingly connected with the expansion valve casing and the compression valve casing through connecting rods.
Further, a sealing ring is arranged between the transmission shaft and the valve seat.
Compared with the prior art, the utility model has the following advantages: the structure is simple, the throttling and pressure reducing can be realized by arranging the turbine disc assembly at one end of the valve seat, and the turbine disc assembly can be driven to rotate, so that the energy of the refrigerant is recovered, and the working stability is higher; the turbine disc assembly rotates and drives the centrifugal impeller at the other end of the valve seat to rotate through the transmission shaft, so that power is provided for refrigerant gas at the outlet of the evaporator, the flow rate of the refrigerant gas is increased, the refrigerant gas is compressed through the centrifugal impeller to form precompression, and the precompressed refrigerant has certain energy, so that the energy consumption of a compressor in a refrigerating system can be effectively saved; and the energy released by the refrigerant in the throttling and depressurization process can be fully utilized, so that the use cost of the refrigerating system is reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1-valve seat, 2-expansion valve casing, 21-expansion inlet, 22-expansion outlet, 3-compression valve casing, 31-compression inlet, 32-compression outlet, 4-transmission shaft, 5-turbine disk assembly, 6-centrifugal assembly, 7-first collecting cavity and 8-second collecting cavity.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Examples: referring to fig. 1, an energy recovery type expansion valve includes a valve seat 1, an expansion valve housing 2 is provided at one end of the valve seat 1, and an expansion inlet 21 and an expansion outlet 22 are provided on the expansion valve housing 2. A compression valve housing 3 is provided at the other end of the valve seat 1, and a compression inlet 31 and a compression outlet 32 are provided in the compression valve housing 3.
A transmission shaft 4 is also rotatably arranged on the valve seat 1, and two ends of the transmission shaft 4 respectively extend into the expansion valve casing 2 and the compression valve casing 3; a turbine disc assembly 5 is provided at an end of the drive shaft 4 extending into the expansion valve housing 2, a centrifugal assembly 6 is provided at an end of the drive shaft 4 extending into the compression valve housing 3, and the turbine disc assembly 5, the drive shaft 4 and the centrifugal assembly 6 can be rotated synchronously. In the implementation, a bearing is arranged between the transmission shaft 4 and the valve seat 1, so that friction between the transmission shaft 4 and the valve seat 1 is reduced, and energy loss is further reduced. The two ends of the transmission shaft 4 are respectively provided with a supporting sleeve, and the sleeves are correspondingly connected with the expansion valve casing 2 and the compression valve casing 3 through connecting rods, so that the stability of the transmission shaft 4 is better. And a sealing ring is further arranged between the transmission shaft 4 and the valve seat 1, so that the tightness of the expansion valve casing 2 and the compression valve casing 3 is better, and the formation of air leakage is avoided.
Wherein the turbine disk assembly 5 is of prior art, such as a tesla turbine structure, comprising a turbine disk and a number of turbine blades distributed axially along the turbine disk. The turbine blades are sleeved on the turbine disc and fixedly connected with the turbine disc, and a gap is reserved between the outer edge of each turbine blade and the inner wall of the expansion valve casing 2; in the machining process, the turbine blade is provided with an inner hole, is sleeved on the turbine disc through the inner hole, and is welded with the turbine disc or fixedly connected with the turbine disc through a key arranged along the axial direction of the turbine disc. In the implementation process, the turbine blades are also connected through a plurality of connecting rods (opposite-pulling screws). A plurality of through holes are formed in the turbine blades, close to the inner holes, around the inner holes in a circle, and the through holes in the turbine blades are right opposite to each other. When the turbine blade structure is implemented, a convex ring is arranged at one side or two sides of the turbine blade close to the inner hole so as to ensure the clearance between the two adjacent turbine blades. The turbine disc is fixedly connected with the transmission shaft 4, and in implementation, the turbine disc is fixedly connected with the transmission shaft 4 through a key.
The expansion inlet 21 is communicated with the side wall of the expansion valve casing 2, the axial line of the expansion inlet 21 is parallel to the tangent line of the turbine blade, and at least part of the expansion inlet 21 is opposite to the position, close to the outer edge, of the turbine blade, so that the fluid entering through the expansion inlet 21 can act on the turbine blade. After entering the expansion valve housing 2 through the expansion inlet 21, the high-pressure refrigerant can directly act on the outer edges of the turbine blades, thereby driving the turbine disk assembly 5 to rotate. The expansion outlet 22 communicates with the side of the expansion valve housing 2 facing away from the valve seat 1. After the high-pressure refrigerant is depressurized by the turbine disk assembly 5, the refrigerant is atomized and flows toward the expansion outlet 22, so that the refrigerant can rapidly flow out through the expansion outlet 22. Preferably, a first outward-projecting collecting chamber 7 is formed on the side of the expansion valve housing 2 facing away from the valve seat 1, and the expansion outlet 22 communicates with the first collecting chamber 7.
The centrifugal component 6 adopts a centrifugal impeller which is fixedly connected with the transmission shaft 4. The compression inlet 31 is communicated with one side of the compression valve casing 3 away from the valve seat 1, the compression outlet 32 is communicated with the side wall of the compression valve casing 3, and the axial lead of the compression inlet is parallel to the tangent line of the centrifugal impeller and is close to the outer edge of the centrifugal impeller. Preferably, a second outwardly projecting collecting chamber 8 is formed on the side of the compression valve housing 3 facing away from the valve seat 1, said compression inlet 31 being in communication with said second collecting chamber 8.
In the working process, after the high-pressure liquid refrigerant flowing in through the expansion inlet 21 enters the expansion valve shell 2, the high-pressure liquid refrigerant can impact the outer edges of the turbine blades, so that the turbine disc assembly 5 is driven to rotate; the turbine disc assembly 5 plays a role of refrigerant throttling while rotating, and simultaneously enables the high-pressure liquid refrigerant to form low-pressure vaporous refrigerant, thereby creating conditions for evaporation of the refrigerant. Because turbine disk subassembly 5, transmission shaft 4 and centrifugal subassembly 6 link to each other as an organic wholely, consequently, drive transmission shaft 4 and centrifugal impeller synchronous rotation when turbine disk subassembly 5 rotates, centrifugal impeller rotates the in-process, has the compression to the refrigerant that flows into compression entry 31 after the evaporimeter, makes the refrigerator that flows into compression valve housing 3 flow into the compressor again after obtaining certain pressure, realizes precompression, through precompression to the refrigerant, can reduce the work energy consumption of compressor, realizes energy-conserving purpose.
The scheme has simple structure, and the turbine disc assembly 5 is arranged at one end of the valve seat 1, so that throttling and pressure reduction can be realized, and the turbine disc assembly 5 can be driven to rotate, thereby recovering the energy of the refrigerant and having higher working stability; and the energy released by the refrigerant in the throttling and depressurization process can be fully utilized, so that the use cost of the refrigerating system is reduced.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (10)
1. The utility model provides an energy recuperation formula expansion valve, includes the disk seat, is equipped with expansion valve casing in the one end of disk seat, is equipped with expansion inlet and expansion outlet on expansion valve casing, its characterized in that: the other end of the valve seat is provided with a compression valve shell, and a compression inlet and a compression outlet are arranged on the compression valve shell;
a transmission shaft is also rotatably arranged on the valve seat, and two ends of the transmission shaft respectively extend into the expansion valve casing and the compression valve casing; the turbine disc assembly is arranged at one end of the transmission shaft, which stretches into the expansion valve casing, the centrifugal assembly is arranged at one end of the transmission shaft, which stretches into the compression valve casing, and the turbine disc assembly, the transmission shaft and the centrifugal assembly can synchronously rotate.
2. An energy recovery expansion valve according to claim 1, wherein: the turbine disc assembly comprises a turbine disc and a plurality of turbine blades axially distributed along the turbine disc; the turbine blades are sleeved on the turbine disc and fixedly connected with the turbine disc, and a gap is reserved between the outer edge of each turbine blade and the inner wall of the expansion valve shell; a plurality of through holes are formed in the turbine blades, close to the inner holes, around the inner holes in a circle, and the through holes in the turbine blades are opposite to each other; the turbine disc is fixedly connected with the transmission shaft.
3. An energy recovery expansion valve according to claim 2, wherein: and a gap is reserved between two adjacent turbine blades.
4. An energy recovery expansion valve according to claim 2, wherein: the expansion inlet is communicated with the side wall of the expansion valve shell, the axial lead of the expansion inlet is parallel to the tangent line of the turbine blade, and at least part of the expansion inlet is opposite to the position, close to the outer edge, of the turbine blade, so that fluid entering through the expansion inlet can act on the turbine blade; the expansion outlet communicates with a side of the expansion valve housing facing away from the valve seat.
5. An energy recovery expansion valve according to claim 4, wherein: on the side of the expansion valve housing facing away from the valve seat, a first, outwardly projecting collecting chamber is formed, with which the expansion outlet communicates.
6. An energy recovery expansion valve according to claim 1, wherein: the centrifugal assembly adopts a centrifugal impeller which is fixedly connected with the transmission shaft.
7. An energy recovery expansion valve according to claim 6, wherein: the compression inlet is communicated with one side of the compression valve shell, which is away from the valve seat, the compression outlet is communicated with the side wall of the compression valve shell, and the axial lead of the compression inlet is parallel to the tangent line of the centrifugal impeller and is close to the outer edge of the centrifugal impeller.
8. An energy recovery expansion valve according to claim 7, wherein: a second, outwardly projecting collecting chamber is formed on the side of the compression valve housing facing away from the valve seat, said compression inlet opening communicating with said second collecting chamber.
9. An energy recovery expansion valve according to claim 1, wherein: and a bearing is arranged between the transmission shaft and the valve seat, two ends of the transmission shaft are respectively provided with a supporting sleeve, and the sleeves are correspondingly connected with the expansion valve casing and the compression valve casing through connecting rods.
10. An energy recovery expansion valve according to claim 1, wherein: a sealing ring is also arranged between the transmission shaft and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321113159.5U CN219774379U (en) | 2023-05-10 | 2023-05-10 | Energy recovery type expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321113159.5U CN219774379U (en) | 2023-05-10 | 2023-05-10 | Energy recovery type expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774379U true CN219774379U (en) | 2023-09-29 |
Family
ID=88137129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321113159.5U Active CN219774379U (en) | 2023-05-10 | 2023-05-10 | Energy recovery type expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774379U (en) |
-
2023
- 2023-05-10 CN CN202321113159.5U patent/CN219774379U/en active Active
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