CN107131688B - Electronic expansion valve with multiple paths of equal distribution - Google Patents
Electronic expansion valve with multiple paths of equal distribution Download PDFInfo
- Publication number
- CN107131688B CN107131688B CN201710340746.0A CN201710340746A CN107131688B CN 107131688 B CN107131688 B CN 107131688B CN 201710340746 A CN201710340746 A CN 201710340746A CN 107131688 B CN107131688 B CN 107131688B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- throttling
- hole
- driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/05—Cost reduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/21—Reduction of parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention relates to a multi-path uniform electronic expansion valve, wherein the downstream of a refrigerant flow passage to a branch outlet is separated by a first valve body arranged in a valve main body, the first valve body is provided with a first valve hole corresponding to each branch outlet, the first valve hole is provided with a valve core matched with the first valve hole, a first throttling part is formed between the valve core and the first valve hole, the valve core is provided with a driving part, and the driving part can simultaneously drive the valve core to advance and retreat relative to the first valve hole so as to change the opening degree of the first throttling part. The invention has simple structure and convenient operation, saves the structural design from the expansion valve to the shunt loop, ensures that the expansion valve machine plays a throttling role, has uniform shunting function, improves the shunting accuracy and reduces the production cost.
Description
Technical Field
The invention relates to an expansion valve, in particular to a multi-path sharing electronic expansion valve.
Background
In the block ice making apparatus, an ice making mold may be formed of a plurality of passages, and during ice making, a refrigerant pressurized by a compressor is condensed in a condenser, sent to an expansion valve through a receiver, and a refrigerant decompressed by the expansion valve is sent to a refrigerant flow divider through a refrigerant pipe, split in the refrigerant flow divider, and then sent to the plurality of passages of the ice making mold, and a low-pressure refrigerant is vaporized in the ice making mold and then returned to the compressor. In such a cycle, the refrigerant is decompressed by the expansion valve, and then flows into the flow divider as a low-pressure two-phase gas-liquid refrigerant, and the two-phase gas-liquid refrigerant is likely to become plug flow and plug flow containing a large amount of bubbles when flowing through the pipe connecting the expansion valve and the refrigerant flow divider. In the case where the above-described air bubbles are generated, the air bubbles cannot uniformly flow into the respective shunt tubes mounted in the respective shunt tube mounting holes, and it is difficult to uniformly distribute the air bubbles.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an electronic expansion valve with multiple equal paths, which has a simple structure and is convenient to operate, and the structural design from the expansion valve to the shunt loop is omitted, so that the expansion valve can play a role in throttling, and has a uniform shunting function, thereby improving the shunting accuracy and reducing the production cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multi-path equally-divided electronic expansion valve comprises a valve main body, an inlet arranged on the valve main body, a plurality of branch outlets arranged on the valve main body, a valve cavity arranged in the valve main body and a refrigerant flow path arranged in the valve main body, wherein the valve cavity is respectively communicated with the inlet and the branch outlets through the refrigerant flow path, the downstream of the refrigerant flow path flows to the branch outlets and is separated by a first valve body arranged in the valve main body, a first valve hole is arranged on the first valve body corresponding to each branch outlet, a valve core matched with the first valve hole is arranged at the first valve hole, a first throttling part is formed between the valve core and the first valve hole, and a driving part is arranged on the valve core and can simultaneously drive the valve core to advance and retreat relative to the first valve hole so as to change the opening degree of the first throttling part.
In the technical scheme, the refrigerant flows into the valve cavity through the inflow inlet, the driving part acts on the valve core and controls the corresponding valve core on each branch outflow port simultaneously, so that the valve core moves forwards and backwards relative to the first valve hole to change the opening degree of each first throttling part, the pressure of the refrigerant in the valve cavity is the same at each throttling part, the flow rates of the refrigerant entering the first valve hole through the first throttling parts are consistent, the first throttling parts throttle and gasify the refrigerant, the throttling degree can be properly adjusted according to the flow rate, the refrigeration load and other operating conditions, the flow splitting characteristic of the refrigerant flow is further improved, the valve cores move forwards and backwards simultaneously, the uniform flow splitting is ensured, the automation degree is high, and the cost is reduced.
In the above aspect, the first orifice may be fully closed by the valve body moving forward and backward with respect to the valve seat of the first valve hole, and the size of the first orifice may be adjusted by adjusting the valve body, thereby appropriately adjusting the degree of orifice.
Preferably, the valve body further includes a second valve body that cooperates with the first valve body to form the valve chamber. The second valve body is connected with the first valve body through bolts and plays a role in sealing.
Preferably, the valve core is in a round bar shape, the front end of the valve core is a throttling action part, the middle part of the valve core is a connecting part, the connecting part is connected to the second valve body, and the rear end of the valve core is a mounting part of the driving part and extends out of the second valve body.
Preferably, at least one of an outer peripheral surface of the throttle action portion and an inner peripheral surface of the first valve hole is tapered toward a distal end of the valve body. Therefore, when the opening degree of the first throttle section is decreased, the foreign matter is easily caught, and when the opening degree is increased, the foreign matter is easily washed away by the refrigerant.
Preferably, an outer peripheral surface of the throttle action portion and an inner peripheral surface of the first valve hole are tapered toward a distal end of the valve body.
Preferably, in the above aspect, the taper angle between the outer peripheral surface of the valve body and the inner peripheral surface of the first valve hole is the same. This can sufficiently exhibit the function of subdividing the refrigerant.
Preferably, a second throttle portion is provided in the refrigerant flow path upstream of the refrigerant flow path in the first valve body for each first throttle portion, a space enlargement portion is provided in the refrigerant flow path from the second throttle portion to the first throttle portion, the second throttle portion is formed by first partition walls provided adjacently along the second throttle portion, and the first partition walls are directed toward and extend into the valve chamber. In this way, the second throttling part can sufficiently exert the effect of suppressing the flow velocity variation and the pressure variation of the refrigerant, the refrigerant is thinned by the second throttling part, and the refrigerant is directly sprayed in the valve cavity, so that the flow dividing characteristic of the refrigerant flow is improved, and the discharge energy of the refrigerant flow is dispersed by enlarging the space part, and the bubbles in the refrigerant flowing into the first throttling part are further subdivided.
Preferably, the driving portion includes a driving member, a driven member, and a power member for driving the driving member to move, the driving member is connected to the third valve body, the driven member is connected to the mounting portion of the valve element, the power member drives the driving member to move, the driving member drives the driven member to move, and the driven member drives the valve element to move relative to the valve seat of the first valve hole, so as to be fully closed.
Preferably, the driving member is a driving gear, the driven member is a driven gear, and the power member is an asynchronous motor. Like this, the drive division has guaranteed that the motion of every case is unanimous to the aperture of the first throttle portion of convenient control, control throttle degree.
The invention has the following beneficial effects: the invention has simple structure and convenient operation, saves the structural design from the expansion valve to the shunt loop, ensures that the expansion valve machine plays a throttling role, has uniform shunting function, improves the shunting accuracy and reduces the production cost.
Drawings
Fig. 1 is a schematic view of an overall configuration of an expansion valve according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view showing embodiment 1 of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural view of the valve cartridge of the present invention;
fig. 5 is a schematic sectional view showing an expansion valve according to embodiment 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive step, are within the scope of the present invention.
The present invention will be described in detail below by way of examples with reference to the accompanying drawings.
Example 1: referring to fig. 1, 2, 3 and 4, the expansion valve has a cylindrical valve body 71, the valve body 71 includes a first valve body 7101, a second valve body 7102 and a third valve body 7103, the first valve body 7101, the second valve body 7102 and the third valve body 7103 are fixed together by bolts, a flow inlet 72 is opened at the center of the first valve body 7101, a plurality of branch flow outlets 73 are radially provided on the outer circumferential surface of the first valve body 7101, the flow inlet 72 is connected to a flow inlet pipe, the branch flow outlets 73 are arranged in a circumferential array and connected to a branch flow pipe; a valve cavity 74 is formed between the first valve body 7101 and the second valve body 7102 in a sealed manner, the valve cavity 74 is respectively communicated with the inflow inlet 72 and the branch outflow outlet 73 through a refrigerant flow passage 75 arranged in the valve body, a first valve hole 76 is arranged on the first valve body 7101 corresponding to each branch outflow outlet 73, a corresponding threaded through hole is arranged on the second valve body 7102 corresponding to each first valve hole 76, a valve core 77 matched with the first valve hole 76 is arranged on the first valve hole 76, the valve core 77 is in a round bar shape, the front end of the valve core is a throttling action part 7701, a first throttling part 78 is formed between the throttling action part 7701 and the first valve hole 76, the middle section is an external thread connecting part 7702, the external thread connecting part 7702 is screwed at the threaded through hole on the second valve body 7102, and the rear end of the valve cavity is an installation part 7703 of a driving part 79 and extends out of the second valve body 7102; a second throttling part 80 is arranged at each first throttling part 78 which flows upstream of the refrigerant flow passage 75, the second throttling part 80 is composed of first partition walls 71011 adjacently arranged on the first valve body 7101, the first partition walls 71011 point and extend into the valve cavity 74, the first partition walls 71011 are distributed along the axial center circumference array of the first valve body 7101, a space expansion part 81 is arranged on the refrigerant flow passage 75 between the second throttling part 80 and the first throttling part 78, the driving part 79 comprises a driving part 7901, a driven part 7902 and a power part 7903, the driving part 7901 is a driving gear which is axially connected on the third valve body 7103 through a mounting shaft; the driven members 7902 are driven gears which are respectively sleeved on the mounting portions 7703 at the rear ends of the valve cores 77, the power members 7903 are asynchronous motors, output shafts of the power members 7903 are connected with mounting shafts of driving gears, the driving gears of the driving members 7901 are driven to rotate through the asynchronous motors, the driven gears of the driven members 7902 on the valve cores 77 are driven to rotate, the steering direction and the angle of each driven gear are consistent, the valve cores 77 are driven to advance and retreat relative to the first valve holes 76, the opening degree of the first throttling portion 78 is changed, throttling pressure and the flow dividing amount are controlled, and uniformity of refrigerant flow in each flow dividing pipeline is guaranteed.
Referring to fig. 1, 2, 3 and 4, the center of the second valve body 7102 is protruded toward the valve chamber 74 with a projection 71021 for flow division, the projection 71021 is placed at the bottom center of the valve chamber 74, the upper end of the projection 71021 is located upstream of the refrigerant flow passage 75, and the upper end thereof is formed in a tapered shape toward the inlet 72. The projection 71021 allows the incoming refrigerant to be uniformly branched into each second throttling part 80.
Referring to fig. 1, 2, 3, and 4, the outer circumferential surface of the throttle action portion 7701 and the inner circumferential surface of the first valve hole 76 are tapered toward the front end of the valve body 77, and the outer circumferential surface of the throttle action portion 7701 and the inner circumferential surface of the first valve hole 76 have the same taper angle.
Referring to fig. 1, 2, 3 and 4, the drive gear and the driven gear have the same module and are in meshed transmission, and the module and the number of teeth of the driven gear on each valve core 77 are the same.
Example 2: referring to fig. 5, the expansion valve has a cylindrical valve body 71, the valve body 71 includes a first valve body 7101, a second valve body 7102 and a third valve body 7103, the first valve body 7101, the second valve body 7102 and the third valve body 7103 are fixed together by bolts, a flow inlet 72 is opened at the center of the first valve body 7101, a plurality of branch flow outlets 73 are radially provided on the outer circumferential surface of the first valve body 7101, the flow inlet 72 is connected to a flow inlet pipe, the branch flow outlets 73 are arranged in a circumferential array and connected to a branch flow pipe; a valve cavity 74 is formed between the first valve body 7101 and the second valve body 7102 in a sealed manner, the valve cavity 74 is respectively communicated with the inlet 72 and the branch outlet 73 through a refrigerant flow passage 75 arranged in the valve body, a first valve hole 76 is arranged on the first valve body 7101 corresponding to each branch outlet 73, a corresponding through hole is arranged on the second valve body 7102 corresponding to each first valve hole 76, a valve core 77 matched with the first valve hole 76 is arranged on the first valve hole 76, the valve core 77 is in a round bar shape, the front end of the valve core is a throttling action part 7701, a first throttling part 78 is formed between the throttling action part 7701 and the first valve hole 76, the middle section is a connecting part 7702, the connecting part 7702 is sleeved at the through hole on the second valve body 7102, and the rear end of the connecting part 7703 of the driving part 79 extends out of the second valve body 7102; a second throttling part 80 is arranged at each first throttling part 78 upstream of the refrigerant flow passage 75, the second throttling part 80 is composed of a first partition wall 71011 adjacently arranged on the first valve body 7101, the first partition wall is directed to and extends into the valve cavity 74, the first partition walls 71011 are distributed along the axial center circumference array of the first valve body 7101, a space expansion part 81 is arranged on the refrigerant flow passage 75 between the second throttling part 80 and the first throttling part 78, the driving part 79 comprises a driving part 7901, a driven part 7902 and a power part 7903, the driving part 7901 is a driving rod, and the driving part 7901 is connected to the third valve body 7103; the driven parts 7902 are driven plates which are respectively sleeved on the mounting parts 7703 at the rear ends of the valve cores 77, the power parts 7903 are hydraulic oil cylinders or screw rods, the output ends of the power parts 7903 are connected with the driving rod, and the driven plates of the driven parts 7902 on the valve cores 77 are driven to reciprocate by driving the driving rod of the driving part 7901 to drive the valve cores 77 to advance and retreat relative to the first valve holes 76 so as to change the opening degree of the first throttling part 78, control throttling pressure and flow dividing amount and ensure the uniformity of refrigerant flow in each flow dividing pipeline.
The center of the second valve body 7102 is provided with a protrusion 71021 for flow division protruding toward the valve chamber 74, the protrusion 71021 is disposed at the bottom center of the valve chamber 74, the upper end of the protrusion 71021 is located upstream of the refrigerant flow passage 75, and the upper end thereof is tapered toward the inflow inlet 72. The projection 71021 allows the incoming refrigerant to be uniformly branched into each second throttling part 80.
The outer peripheral surface of the throttle action portion 7701 and the inner peripheral surface of the first valve hole 76 are tapered toward the tip end of the valve body 77, and the outer peripheral surface of the throttle action portion 7701 and the inner peripheral surface of the first valve hole 76 have the same taper angle.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. The utility model provides an electronic expansion valve that multichannel was equallyd divide which characterized in that: the refrigerant circulation valve comprises a valve main body (71), wherein the valve main body (71) comprises a first valve body (7101), a second valve body (7102) and a third valve body (7103), the first valve body (7101), the second valve body (7102) and the third valve body (7103) are fixedly connected together through bolts, an inlet (72) is formed in the center of the first valve body (7101), a plurality of branch outflow ports (73) are radially arranged on the outer peripheral surface of the first valve body (7101), the branch outflow ports (73) are arranged in an array along the circumferential direction, a valve cavity (74) is formed between the first valve body (7101) and the second valve body (7102) in a sealed inner mode, a refrigerant circulation passage (75) is formed in the valve main body (71), the valve cavity (74) is communicated with the inlet (72) and the branch outflow ports (73) through the refrigerant circulation passage (75), the positions from the downstream of the refrigerant circulation passage (75) to the branch outflow ports are respectively communicated with the inlet (72) and the branch outflow ports (73), a first valve body (7101) arranged in the valve body (71) is provided with corresponding through a corresponding through hole (76), and each corresponding to the corresponding first outflow port (76) is arranged on the second valve body (7101), the valve core (77) is in a round bar shape, the front end of the valve core is a throttling action part (7701), a first throttling part (78) is formed between the throttling action part (7701) and the first valve hole (76), the middle section of the valve core is an external thread connecting part (7702), the external thread connecting part (7702) is screwed in a thread through hole on the second valve body (7102), the rear end of the valve core is a mounting part (7703) of a driving part (79) and extends out of the second valve body (7102), the upstream of the refrigerant circulating channel (75) flows to each first throttling part (78) and is provided with a second throttling part (80), the second throttling part (80) is composed of a first dividing wall (71011) which is adjacently arranged on the first valve body (7101), the first dividing wall (011) points to and extends into the valve hole (74), the first dividing wall (71011) is distributed along the circumferential array of the first valve body (7101), the second throttling part (80) is arranged on the first dividing wall (71011) and extends into the valve hole (76) and can change the opening degree of the driving part (79) relative to the first throttling part (79) at the same time;
the driving part (79) comprises a driving piece (7901), a driven piece (7902) and a power piece (7903);
the driving part (7901) is a driving gear and is axially connected to the third valve body (7103) through a mounting shaft; the driven part (7902) is a driven gear, the driven part is respectively sleeved on a mounting part (7703) at the rear end of the valve core (77), the power part (7903) is an asynchronous motor, an output shaft of the power part is connected with a mounting shaft of a driving gear, the driving gear of the driving part (7901) is driven to rotate through the asynchronous motor, the driven gear of the driven part (7902) on each valve core (77) is driven to rotate, the steering direction and the angle of each driven gear are consistent, and the valve cores (77) are driven to advance and retreat relative to the first valve hole (76) so as to change the opening degree of the first throttling part (78);
the driving gear and the driven gear have the same module and are in meshed transmission, and the module and the number of teeth of the driven gear on each valve core (77) are consistent;
the center of the second valve body (7102) protrudes towards the valve cavity (74) and is provided with a lug (71021) for flow division, the lug (71021) is placed in the center of the bottom of the valve cavity (74), the upper end of the lug (71021) is located upstream of the refrigerant flow channel (75), and the upper end of the lug is directed towards the inflow inlet (72) to form a conical shape.
2. The electronic expansion valve with multi-way sharing of claim 1, wherein: the first throttle portion (78) is fully closable by the valve element (77) moving forward and backward with respect to the valve seat of the first valve hole (76).
3. The electronic expansion valve with multi-way sharing of claim 1, wherein: at least one of an outer peripheral surface of the throttle action portion (7701) and an inner peripheral surface of the first valve hole (76) is tapered toward a tip end of the valve body (77).
4. The electronic expansion valve with multi-way sharing of claim 1, wherein: the outer peripheral surface of the throttle action portion (7701) and the inner peripheral surface of the first valve hole (76) are tapered toward the tip end of the valve body (77).
5. The electronic expansion valve with multi-way sharing according to claim 3 or 4, wherein: the outer peripheral surface of the valve element (77) and the inner peripheral surface of the first valve hole (76) have the same taper angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340746.0A CN107131688B (en) | 2017-05-16 | 2017-05-16 | Electronic expansion valve with multiple paths of equal distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340746.0A CN107131688B (en) | 2017-05-16 | 2017-05-16 | Electronic expansion valve with multiple paths of equal distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131688A CN107131688A (en) | 2017-09-05 |
| CN107131688B true CN107131688B (en) | 2023-03-17 |
Family
ID=59733260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710340746.0A Active CN107131688B (en) | 2017-05-16 | 2017-05-16 | Electronic expansion valve with multiple paths of equal distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131688B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784848A (en) * | 2007-06-19 | 2010-07-21 | 丹福斯有限公司 | Cooling system |
| CN101802515A (en) * | 2007-06-19 | 2010-08-11 | 丹佛斯公司 | An expansion valve with a distributor |
| CN102135354A (en) * | 2011-01-11 | 2011-07-27 | 浙江盾安人工环境股份有限公司 | Thermostatic expansion valve |
| CN103438623A (en) * | 2013-07-19 | 2013-12-11 | 江苏天舒电器有限公司 | Heat pump water heater with liquid homogenization device and liquid homogenization method |
| CN103635729A (en) * | 2011-06-30 | 2014-03-12 | 大金工业株式会社 | Refrigerant flow path switching valve and air conditioner using same |
| CN207501501U (en) * | 2017-05-16 | 2018-06-15 | 长兴威威制冷科技有限公司 | The electric expansion valve that a kind of multichannel is divided equally |
-
2017
- 2017-05-16 CN CN201710340746.0A patent/CN107131688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784848A (en) * | 2007-06-19 | 2010-07-21 | 丹福斯有限公司 | Cooling system |
| CN101802515A (en) * | 2007-06-19 | 2010-08-11 | 丹佛斯公司 | An expansion valve with a distributor |
| CN102135354A (en) * | 2011-01-11 | 2011-07-27 | 浙江盾安人工环境股份有限公司 | Thermostatic expansion valve |
| CN103635729A (en) * | 2011-06-30 | 2014-03-12 | 大金工业株式会社 | Refrigerant flow path switching valve and air conditioner using same |
| CN103438623A (en) * | 2013-07-19 | 2013-12-11 | 江苏天舒电器有限公司 | Heat pump water heater with liquid homogenization device and liquid homogenization method |
| CN207501501U (en) * | 2017-05-16 | 2018-06-15 | 长兴威威制冷科技有限公司 | The electric expansion valve that a kind of multichannel is divided equally |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131688A (en) | 2017-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070137333A1 (en) | Ball screw for machine tools | |
| EP3099939B1 (en) | Two-stage centrifugal pump | |
| CN101338747B (en) | Double oil path vane pump /motor | |
| JP6763953B2 (en) | Control method of liquid injection of compressor or expander device, liquid injection compressor or expander device, and liquid injection compressor or expander element | |
| JP5083390B2 (en) | Refrigerant flow divider, refrigerant flow divider integrated expansion device and refrigeration device | |
| CN107131688B (en) | Electronic expansion valve with multiple paths of equal distribution | |
| CN105402188A (en) | Servo controllable high-speed rotating shunting reversing valve | |
| CN203395429U (en) | Connector component | |
| CN104595246A (en) | Centrifugal compressor with recooling structure | |
| CN112360678A (en) | Axial flow distribution hydraulic motor | |
| CN100427854C (en) | Liquid separator | |
| JP2015010693A (en) | Heat-proof piston/cylinder device | |
| CN201488411U (en) | Dispenser component | |
| CN207501501U (en) | The electric expansion valve that a kind of multichannel is divided equally | |
| CN213119619U (en) | Air conditioner distributor adaptive to multiple input and output | |
| US20100014963A1 (en) | Centrifugal pump | |
| EP3069060A1 (en) | Multistage trim for control valves | |
| CN106524793B (en) | Heat exchanger | |
| CN201014854Y (en) | Separator | |
| CN103252472A (en) | Die casting machine injection stroke controller | |
| CN108405737B (en) | Sizing mill | |
| CN217979377U (en) | Knockout and refrigerating system thereof | |
| CN200940709Y (en) | High and low pressure switch valve for concrete transport pump | |
| CN220554250U (en) | Electrical control cabinet with refrigeration function | |
| CN103075285A (en) | High pressure common rail fuel metering valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |