CN201387188Y - Two-way circulation heating power expansion valve - Google Patents
Two-way circulation heating power expansion valve Download PDFInfo
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- CN201387188Y CN201387188Y CN200820164691U CN200820164691U CN201387188Y CN 201387188 Y CN201387188 Y CN 201387188Y CN 200820164691 U CN200820164691 U CN 200820164691U CN 200820164691 U CN200820164691 U CN 200820164691U CN 201387188 Y CN201387188 Y CN 201387188Y
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Abstract
The utility model relates to a two-way circulation heating power expansion valve, which comprises a valve body and a power head part which is arranged on the upper end of the valve body, wherein the valve body is provided with a first connection port and a second connection port, and a valve port which communicates the first and the second connection ports and a valve core which is arranged at the lower side of the valve port, is matched with the valve port and is supported by an adjusting spring and a transmission shaft are arranged inside the valve body, and is characterized in that a reversing valve port which communicates the first and the second connection ports is also arranged inside the valve body. The interior of the valve body is provided with the reversing valve port, so that the two-way circulation heating power expansion valve simultaneously has all functions of an ordinary expansion valve and a retaining valve, reduces the installation complexity and the potential leakage points caused by multiple welding seams, has reasonable and compact structure, can be matched with the majority of the prior parts, has strong universality, effectively improves the installation convenience and safety of air conditioner system and reduces the cost of the air conditioner system.
Description
Technical field
The utility model belongs to the throttling arrangement technical field, particularly relates to a kind of bidirectional flow heat expansion valve that check valve and heating power expansion valve are integrated.
Background technology
The heating power expansion valve that is used for pipeline system such as air-conditioning system in the prior art mainly comprises valve body and power head part, offer first interface and second interface on the valve body, offer the valve port that connects first interface and second interface in the valve body, downside at valve port is provided with the spool that is supported by regulating spring and power transmission shaft, and described power transmission shaft is driven by power head part.During work, refrigerant flows to second interface that links to each other with evaporator from first interface that links to each other with condensator outlet, power head part is experienced the degree of superheat of evaporator outlet end and is ordered about the power transmission shaft axial action, promoting valve hole part moves near valve port, change valve port opening, with the control cold medium flux, reach the purpose of regulating the control temperature.
The heating power expansion valve of said structure, because the unique passage of first interface and second interface is the spool of entity, only can make the refrigerant one-way flow, promptly flow to second interface from first interface, otherwise, when when second interface flows to first interface, valve hole part then can be closed valve port greater than the first interface pressure because of the second interface pressure, therefore when reality is used, normally two heating power expansion valves are cascaded and check valve respectively in parallel, make the medium in the air-conditioning system can bidirectional throttle, operate as normal, though this air-conditioning system can realize bidirectional throttle, but its complex structure, cost is higher, and inconvenience is installed, and weld seam quantity and potential leakage point are more, and degree of safety is lower.
Summary of the invention
The purpose of this utility model is at existing technological deficiency in the prior art, a kind of novelty rational in infrastructure is provided, can effectively realizes bidirectional throttle, good reliability, lower-cost bidirectional flow heat expansion valve.
The purpose of this utility model realizes by following technical scheme: a kind of bidirectional flow heat expansion valve, comprise valve body and the power head part that is positioned at its upper end, offer first interface and second interface on the valve body, be provided with the valve port that is communicated with first interface and second interface in the valve body and be positioned at the valve port downside spool by the relative support of regulating spring with matching, it is characterized in that also offering in the described valve body the reverse valve port of connection first interface and second interface with power transmission shaft.
Described reverse valve port inside is provided with a dynamic seal; The lower end is provided with a necking part, forms to match with described dynamic seal, controls the sealing table top that reverse valve port is communicated with or closes; The upper end is provided with the limit shaft that prevents that dynamic seal from escaping.
The sealing structure that described reverse valve port can adopt structure that spheroid matches with sphere or stage body to match with the conical surface.
The utility model is compared with the structure of control valve wire system bidirectional throttle in the prior art, has following advantage:
1, possessed common expansion valve simultaneously and combined the function that is had, reduced mounting complexity, reduced the potential leakage point that causes because of weld seam quantity more with check valve.
2, compactness rational in infrastructure can be used with existing most accessories, and versatility is very strong, has effectively improved convenience and degree of safety that air-conditioning system is installed, reduces the cost of air-conditioning system.
Description of drawings
Fig. 1 is the reverse valve port opening of a utility model schematic diagram.
Fig. 2 is the reverse valve port closed condition of a utility model schematic diagram.
Fig. 3 is first kind of one-way sealing structural representation of the present utility model.
Fig. 4 is second kind of one-way sealing structural representation of the present utility model.
Fig. 5 is the principle schematic that heating power expansion valve of the present utility model is applied in air-conditioning system.
Drawing reference numeral explanation: 1-valve body, 2-power head part, 3-first interface, 4-second interface, 5-valve port, 6-spool, 7-regulating spring, 8-power transmission shaft, the reverse valve port of 9-, 10-dynamic seal, 11-sealing table top, 12-limit shaft, 13-off-premises station, 14-compressor, 15-four-way change-over valve, 16-indoor set
The specific embodiment
As Fig. 1 or shown in Figure 2, described bidirectional flow heat expansion valve comprises valve body 1 and is positioned at the power head part 2 of its upper end, offer first interface 3 and second interface 4 on the valve body 1, be provided with the valve port 5 that is communicated with first interface 3 and second interface 4 in the valve body 1 and be positioned at the valve port 5 downsides spool 6 by regulating spring 7 and power transmission shaft 8 relative supports with matching, it is characterized in that also offering in the described valve body 1 the reverse valve port 9 of connection first interface 3 and second interface 4.
Described reverse valve port 9 inside are provided with a dynamic seal 10; The lower end is provided with a necking part, forms to match with described dynamic seal 10, controls the sealing table top 11 that reverse valve port 9 is communicated with or closes; The upper end is provided with the limit shaft 12 that prevents that dynamic seal 10 from escaping.
The sealing structure that described reverse valve port 9 can adopt structure that spheroid matches with sphere or stage body to match with the conical surface: shown in Figure 3 is first kind of one-way sealing structure of the present utility model, at this moment, dynamic seal 10 is a spheroid, sealing table top 11 with matching is a sphere, spheroid since gravity and differential pressure action and with the sphere close proximity, reverse valve port 9 is in closed state, when spheroid is subjected to below pressure, can overcome gravity and separate with sphere, reverse valve port 9 is opened and is communicated with, and spheroid also is subjected to the effect of limit shaft 12 on its top and the reverse valve port 9 of can not escaping out simultaneously; Shown in Figure 4 is second kind of one-way sealing structure of the present utility model, and at this moment, dynamic seal 10 is a stage body, and sealing table top 11 with matching is the conical surface, and its operation principle is identical with first kind of hermetically-sealed construction.
Fig. 5 is the principle schematic that bidirectional flow heat expansion valve of the present utility model is applied in air-conditioning system, during refrigeration, off-premises station 13 is a condenser, indoor set 16 is an evaporimeter, the high temperature and high pressure gas refrigerant that compressor 14 high-pressure sides are discharged enters off-premises station 13 through four-way change-over valve 15, continue release heat by off-premises station 13 to the external world and lower the temperature, become the highly pressurised liquid refrigerant; The highly pressurised liquid refrigerant that flows out from off-premises station 13 flows to bidirectional flow heat expansion valve B1 of the present utility model, under the effect of refrigerant pressure, reverse valve port 9 is closed, this moment, this bidirectional flow heat expansion valve B1 and common heating power expansion valve were as good as, the highly pressurised liquid refrigerant enters bidirectional flow heat expansion valve B2 after its throttling step-down, under the effect of refrigerant pressure, the valve port 6 of bidirectional flow heat expansion valve B2 is closed, reverse valve port 9 is opened, refrigerant flows into indoor set 16 through it, by medium heat in indoor set 16 absorption chambers, become the low-pressure gas refrigerant; Low-pressure gas refrigerant from indoor set 16 flows out is sucked by compressor 14 low-pressure ends and the continuation circulation with four-way change-over valve 15; When heating, indoor set 16 is a condenser, and off-premises station 13 is an evaporimeter, and its operation principle is identical during with refrigerating state, and the medium circulation path is opposite.
Claims (3)
1, a kind of bidirectional flow heat expansion valve, comprise valve body and the power head part that is positioned at its upper end, offer first interface and second interface on the valve body, be provided with the valve port that is communicated with first interface and second interface in the valve body and be positioned at the valve port downside spool by the relative support of regulating spring with matching, it is characterized in that also offering in the described valve body the reverse valve port of connection first interface and second interface with power transmission shaft.
2, bidirectional flow heat expansion valve according to claim 1, its feature are that also described reverse valve port inside is provided with a dynamic seal; The lower end is provided with a necking part, forms to match with described dynamic seal, controls the sealing table top that reverse valve port is communicated with or closes; The upper end is provided with the limit shaft that prevents that dynamic seal from escaping.
3, bidirectional flow heat expansion valve according to claim 1, its feature also are the sealing structure that described reverse valve port can adopt structure that spheroid matches with sphere or stage body to match with the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820164691U CN201387188Y (en) | 2009-05-25 | 2009-05-25 | Two-way circulation heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820164691U CN201387188Y (en) | 2009-05-25 | 2009-05-25 | Two-way circulation heating power expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387188Y true CN201387188Y (en) | 2010-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820164691U Expired - Fee Related CN201387188Y (en) | 2009-05-25 | 2009-05-25 | Two-way circulation heating power expansion valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN201387188Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410678A (en) * | 2011-09-30 | 2012-04-11 | 浙江鸿森机械有限公司 | Heat pump type expansion valve without temperature-sensing bag |
| CN101458019B (en) * | 2008-11-13 | 2012-11-21 | 嵊州市盈亿机械有限公司 | Bidirectional flow heat expansion valve |
| WO2013159509A1 (en) * | 2012-04-28 | 2013-10-31 | 浙江三花股份有限公司 | Thermal expansion valve with one-way control function |
| CN103423926A (en) * | 2012-05-16 | 2013-12-04 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN103791663A (en) * | 2012-10-31 | 2014-05-14 | 浙江三花股份有限公司 | Thermal expansion valve with unidirectional control function |
| CN104180566A (en) * | 2013-05-21 | 2014-12-03 | 浙江三花股份有限公司 | Thermal expansion valve with functions of one-way valve |
-
2009
- 2009-05-25 CN CN200820164691U patent/CN201387188Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458019B (en) * | 2008-11-13 | 2012-11-21 | 嵊州市盈亿机械有限公司 | Bidirectional flow heat expansion valve |
| CN102410678A (en) * | 2011-09-30 | 2012-04-11 | 浙江鸿森机械有限公司 | Heat pump type expansion valve without temperature-sensing bag |
| WO2013159509A1 (en) * | 2012-04-28 | 2013-10-31 | 浙江三花股份有限公司 | Thermal expansion valve with one-way control function |
| US9631850B2 (en) | 2012-04-28 | 2017-04-25 | Zhejiang Sanhua Co., Ltd. | Thermal expansion valve with one-way control function |
| CN103423926A (en) * | 2012-05-16 | 2013-12-04 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN103423926B (en) * | 2012-05-16 | 2016-08-17 | 浙江三花股份有限公司 | A kind of heating power expansion valve |
| CN103791663A (en) * | 2012-10-31 | 2014-05-14 | 浙江三花股份有限公司 | Thermal expansion valve with unidirectional control function |
| CN104180566A (en) * | 2013-05-21 | 2014-12-03 | 浙江三花股份有限公司 | Thermal expansion valve with functions of one-way valve |
| CN104180566B (en) * | 2013-05-21 | 2018-06-19 | 浙江三花制冷集团有限公司 | A kind of heating power expansion valve with non-return valve function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shengzhou Yingjia Machinery Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Zonghao Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20110525 |
|
| DD01 | Delivery of document by public notice |
Addressee: Shengzhou Yingjia Machinery Co., Ltd. Document name: Notification of Decision on Request for Restoration of Right |