CN200975496Y - Secondary throttling bidirectional thermal expansion valve - Google Patents
Secondary throttling bidirectional thermal expansion valve Download PDFInfo
- Publication number
- CN200975496Y CN200975496Y CNU200620107197XU CN200620107197U CN200975496Y CN 200975496 Y CN200975496 Y CN 200975496Y CN U200620107197X U CNU200620107197X U CN U200620107197XU CN 200620107197 U CN200620107197 U CN 200620107197U CN 200975496 Y CN200975496 Y CN 200975496Y
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- CN
- China
- Prior art keywords
- throttling
- valve
- valve port
- throttle
- passage
- 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.)
- Expired - Lifetime
Links
- 230000002457 bidirectional effect Effects 0.000 title claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000004378 air conditioning Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
- F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
Landscapes
- Temperature-Responsive Valves (AREA)
- Details Of Valves (AREA)
Abstract
A two-time throttle two-way thermal expansion valve is especially suitable for use as a throttle element in a refrigeration system of a heat pump type air conditioning device. The valve comprises a valve body (1), a valve needle (2), a steel ball (3), a valve port throttling channel (6) and a connecting pipe (9); (10) the cross section of the throttle hole (8) is a fixed value, and the cross section of the throttle hole (8) is an automatic adjustment, so that in the heat pump type air conditioning device, different flow requirements of a refrigeration working condition and a heating working condition can be met during forward and reverse work, and meanwhile, the secondary throttling can fundamentally overcome the universal fluctuation and oscillation of the thermostatic expansion valve.
Description
Technical field
The utility model relates to a kind of second throttle bidirectional heat expansion valve, belongs to the throttling technology field of steam compression heat pump type refrigeration system, is specially adapted to the heat-pump type air-conditioning device refrigeration system as throttle element.
Background technique
The two-way heating power expansion valve that now is used for the throttling of heat-pump type air-conditioning device refrigeration system, only experience automatic temperature control valve mouth throttling passage cross section and carry out a throttling by bellows, before the throttling and the channel cross-section after the throttling all greater than the maximum cross-section of valve port throttling passage, when the valve port channel cross-section that different and bellows is experienced valve port throttling passage cross section under the temperature and requirement when cooling condition and the desired flow of heating condition does not match, cause system's cisco unity malfunction.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, simple in structure, in the refrigeration system of heat-pump type air-conditioning device, the desired different flow of cooling condition and heating condition can be satisfied, the second throttle bidirectional heat expansion valve of refrigeration system proper functioning can be guaranteed.
The utility model second throttle bidirectional heat expansion valve, comprise (preceding) passage and connecting tube etc. after (back) passage before valve body, needle, steel ball, valve port throttling passage, the valve port throttling, the valve port throttling, (preceding) passage is provided with throttle orifice after it is characterized in that before the valve port throttling (back) passage or valve port throttling, and the channel cross-section of throttle orifice is less than the maximum cross-section of valve port throttling passage.
Described throttle orifice can directly directly be processed to form by valve body on (preceding) passage after (back) passage or the valve port throttling before the valve port throttling.
Described throttle orifice also can embed before the valve port throttling (preceding) passage after (back) passage or the valve port throttling.
Described throttle orifice also can be arranged on the end in the connecting tube of two ends.
Second throttle bidirectional heat expansion valve of the present utility model since before the valve port throttling after (back) passage or the valve port throttling (preceding) passage be provided with throttle orifice, in the heat-pump type air-conditioning device refrigeration system, can satisfy the cooling condition traffic demand different, because the effect of second throttle can fundamentally overcome ubiquitous fluctuation of heating power expansion valve or vibration with heating condition.
Description of drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are four embodiments' of the utility model second throttle bidirectional heat expansion valve overall structure figure.
Shown in Figure 1:
1-valve body, 2-needle, 3-steel ball, 4; (preceding) passage, 8-throttle orifice, 9 after (back) passage, 6-valve port throttling passage, the throttling of 7-valve port before the throttling of 5-valve port; The 10-connecting tube
Shown in Figure 2:
11-valve body, 12-needle, 13-steel ball, 14; (preceding) passage, 19 after (back) passage, 16-valve port throttling passage, 17-throttle orifice, the throttling of 18-valve port before the throttling of 15-valve port; The 20-connecting tube
Shown in Figure 3:
(back) passage, 25-throttle orifice, 26-valve port throttling passage, 27 before 21-valve body, 22-needle, 23-steel ball, the throttling of 24-valve port; (preceding) passage, 29 after the throttling of 28-valve port; The 30-connecting tube
Shown in Figure 4:
(back) passage, 36-valve port throttling passage, 37 before 31-valve body, 32-needle, 33-steel ball, 34-throttle orifice, the throttling of 35-valve port; (preceding) passage, 39 after the throttling of 38-valve port; The 40-connecting tube
Fig. 5 is the heat-pump type air-conditioning device refrigerating system figure.
Shown in Figure 5:
41-compressor, 42-four-way electromagnetic reversing valve, 43-outdoor heat converter, 44-second throttle bidirectional heat expansion valve, 45-indoor heat converter
Embodiment
First embodiment of the utility model second throttle bidirectional heat expansion valve is as shown in Figure 1:
If the heat-pump type air-conditioning device refrigeration system is in cooling condition, then the compressed machine 41 of gaseous refrigerant is collapsed into the high pressure-temperature gaseous refrigerant, become high pressure liquid refrigerant through 43 condensations of four-way electromagnetic reversing valve 42 inlet chamber outer heat-exchangers, high pressure liquid refrigerant enters second throttle bidirectional heat expansion valve 44 from the connecting tube 9 of second throttle bidirectional heat expansion valve 44, through valve port throttling prepass 4,5 enter and experience temperature by bellows and regulate the valve port throttling passage 6 of channel cross-section automatically and carry out the throttling first time, high pressure liquid refrigerant becomes the low-pressure low-temperature gas-liquid mixed refrigerant after the throttling first time, passage 7 enters throttle orifice 8 and carries out the throttling second time after the valve port throttling, the low-pressure low-temperature gas-liquid mixed refrigerant becomes pressure and temperature after the throttling second time lower, the gas-liquid mixed refrigerant that the gaseous refrigerant ratio is higher, entering indoor heat converter 45 heat absorption evaporations through connecting tube 10 becomes low-pressure gaseous refrigerant, gets back to the circulation that compressor 41 is finished cooling condition through four-way electromagnetic reversing valve 42.
If heat-pump type air-conditioning device is in heating condition, then the compressed machine 41 of gaseous refrigerant is collapsed into the high pressure-temperature gaseous refrigerant, enter indoor heat converter 45 condensations through four-way electromagnetic reversing valve 42 and become high pressure liquid refrigerant, high pressure liquid refrigerant enters second throttle bidirectional heat expansion valve 44 from the connecting tube 10 of second throttle bidirectional heat expansion valve 44, carry out the throttling first time through throttle orifice 8, enter valve port throttling passage 6 through valve port throttling prepass 7 and carry out the throttling second time, passage 4 after the gas-liquid mixed refrigerant behind the second throttle passes through the valve port throttling, 5 and connecting tube 9 inlet chamber outer heat-exchangers 43 heat absorption evaporation become low-pressure gaseous refrigerant, get back to compressor 41 through four-way electromagnetic reversing valve 42 and finish and heat circulation.
Because during cooling condition, the valve port throttling passage 6 that can regulate channel cross-section automatically is first throttle, throttle orifice 8 is second throttling, and during heating condition, throttle orifice 8 is throttling for the first time, the valve port throttling passage 6 that can regulate channel cross-section automatically is throttling for the second time, in heat-pump type air-conditioning device, during forward and reverse work, can satisfy the desired different flow of cooling condition and heating condition, second throttle can fundamentally overcome ubiquitous fluctuation of heating power expansion valve and vibration simultaneously, improves the Energy Efficiency Ratio of system.
Claims (4)
1, a kind of second throttle bidirectional heat expansion valve comprises valve body (1); (11); (21); (31), needle (2); (12); (22); (32), steel ball (3); (13); (23); (33), valve port throttling passage (6); (16); (26); (36), valve port throttling prepass (4); (14); (24); (34), (5); (15); (25); (35), passage (7) after the valve port throttling; (17); (27); (37), (8); (18); (28); (38) and connecting tube (9); (19); (29); (39), (10); (20); (30); (40) etc., it is characterized in that valve port throttling prepass (4); (14); (24); (34), (5); (15); (25); (35) passage (7) or after the valve port throttling; (17); (27); (37), (8); (18); (28); (38) be provided with throttle orifice (8); (17); (25); (34), throttle orifice (8); (17); (25); (34) channel cross-section is less than valve port throttling passage (6); (16); (26); (36) maximum cross-section.
2, by the described second throttle bidirectional heat expansion valve of claim 1, its feature also is described throttle orifice (8); (17); (25); (34) can be directly at valve port throttling prepass (4); (14); (24); (34), (5); (15); (25); (35) passage (7) or after the valve port throttling; (17); (27); (37), (8); (18); (28); (38) go up by valve body (1); (11); (21); (31) directly be processed to form.
3, by the described second throttle bidirectional heat expansion valve of claim 1, its feature also is described throttle orifice (8); (17); (25); (34) also can embed valve port throttling prepass (4); (14); (24); (34), (5); (15); (25); (35) passage (7) or after the valve port throttling; (17); (27); (37), (8); (18); (28); (38).
4, by the described second throttle bidirectional heat expansion valve of claim 1, its feature also is described throttle orifice (8); (17); (25); (34) also can be arranged on two ends connecting tube (9); (19); (29); (39), (10); (20); (30); (40) end in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620107197XU CN200975496Y (en) | 2006-08-29 | 2006-08-29 | Secondary throttling bidirectional thermal expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620107197XU CN200975496Y (en) | 2006-08-29 | 2006-08-29 | Secondary throttling bidirectional thermal expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975496Y true CN200975496Y (en) | 2007-11-14 |
Family
ID=38901781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620107197XU Expired - Lifetime CN200975496Y (en) | 2006-08-29 | 2006-08-29 | Secondary throttling bidirectional thermal expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975496Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547274C (en) * | 2006-08-29 | 2009-10-07 | 浙江春晖智能控制股份有限公司 | Secondary throttling bidirectional thermal expansion valve |
-
2006
- 2006-08-29 CN CNU200620107197XU patent/CN200975496Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547274C (en) * | 2006-08-29 | 2009-10-07 | 浙江春晖智能控制股份有限公司 | Secondary throttling bidirectional thermal expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060829 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060829 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |