CN202420049U - Bidirectional throttle valve for air-conditioning system - Google Patents
Bidirectional throttle valve for air-conditioning system Download PDFInfo
- Publication number
- CN202420049U CN202420049U CN201220018940XU CN201220018940U CN202420049U CN 202420049 U CN202420049 U CN 202420049U CN 201220018940X U CN201220018940X U CN 201220018940XU CN 201220018940 U CN201220018940 U CN 201220018940U CN 202420049 U CN202420049 U CN 202420049U
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- China
- Prior art keywords
- valve
- chamber
- air
- throttling
- conditioning system
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- Expired - Fee Related
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Abstract
The utility model relates to a bidirectional throttle valve for an air-conditioning system, and belongs to valves. The traditional bidirectional throttle valve has the disadvantages of high processing difficulty, high manufacturing cost and big possibility of abrading assemblies. The bidirectional throttle valve disclosed by the utility model comprises a connecting pipe, a valve seat, a refrigerating throttle valve and a heating throttle valve, wherein the connecting pipe is divided into a first chamber and a second chamber by the valve seat tightly matched with the connecting pipe; the refrigerating throttle valve and the heating throttle valve respectively comprise a guide sleeve, a valve plug, a throttle channel and a flow guide chamber, wherein the flow guide chamber and the throttle channel are arranged on the valve seat; the internal port of the throttle channel is positioned at the bottom of the flow guide chamber; the guide sleeve is embedded in the flow guide chamber; the opening of the valve chamber in the guide sleeve faces the bottom of the flow guide chamber; the valve plug on the side of the guide sleeve is accommodated in the valve chamber of the guide sleeve; the side of the guide sleeve is provided with a flow guide surface; the flow guide surface is communicated with the valve chamber via the flow guide channel; the throttle channel of the refrigerating throttle valve is communicated with the second chamber; the flow guide chamber of the refrigerating throttle valve is connected with the first chamber; the throttle channel of the heating throttle valve is communicated with the first chamber; and the flow guide chamber of the heating throttle valve is connected with the second chamber. The impact to the valve plugs is small, and the manufacturing cost is low.
Description
Technical field
The utility model belongs to valve, especially is used for air-conditioning system to regulate the bidirectional throttling valve of cooling and warming rate-of flow relevant with a kind of.
Background technology
Choke valve is through changing throttling cross section or the chock length valve with the control fluid flow.Use a kind of bidirectional throttling valve to realize the flow-control of cooling and warming medium in the air-conditioning system.Existing bidirectional throttling valve is as shown in Figure 1; Adopt double spool, bivalve seat to join the structure of back-up ring; Mainly form the refrigeration orifice union by first spool 3, first valve seat 2, mainly be made up of second spool 5, second valve seat 6 and heat orifice union, back-up ring 4 is between two groups of assemblies; Valve seat, back-up ring are fastened on tube connector 1 inner chamber through reverse riveting and form bidirectional throttling valve.Such choke valve needs a plurality of spools, valve component, complex structure, and difficulty of processing is high, and manufacturing cost is high; Spool and valve seat collide easy abrasion for a long time, can strengthen leakage rate, thereby cause choke valve shortening in service life.
The utility model content
The purpose of the utility model is exactly that existing bidirectional throttling valve difficulty of processing is high with manufacturing cost, the defective of assembly easy abrasion in order to overcome, and provides a kind of and makes relatively easily, the air-conditioning system of low cost of manufacture, long service life uses bidirectional throttling valve.
For this reason; The utility model adopts following technical scheme: a kind of air-conditioning system is used bidirectional throttling valve; Comprise tube connector, choke valve and heat choke valve freezes; The fastening valve seat that is equipped with in the described tube connector inner chamber, valve seat outer wall and tube connector internal chamber wall form and closely cooperate, and the tube connector inner chamber is separated into first chamber and second chamber; It is characterized in that: described refrigeration choke valve with heat choke valve and comprise fairlead, spool, throttling passage and diversion cavity respectively, throttling passage all is arranged on the described valve seat, diversion cavity is divided into the two ends of valve seat; The inner port portion of throttling passage is positioned at the bottom of diversion cavity; Fairlead is provided with valve pocket, valve pocket one end opening, end sealing, and fairlead fixedly is flush-mounted in the diversion cavity; The valve pocket opening is towards the diversion cavity bottom, and spool is placed in the valve pocket; The fairlead side is provided with guide face, and guide face is communicated with valve pocket through flow-guiding channel; The diversion cavity of refrigeration choke valve is communicated with described first chamber, and throttling passage is communicated with described second chamber; The diversion cavity that heats choke valve is communicated with described second chamber, and throttling passage is communicated with described first chamber.
When the utility model plays the refrigeration throttling action; Refrigerant is divided into two-way after second chamber entering of tube connector; One the tunnel gets into the throttling passage of refrigeration choke valve, and spool is passed toward the valve pocket bottom in the fairlead, opens the inner oral area of throttling passage; Flow to diversion cavity from flow-guiding channel after making medium be full of valve pocket, flow to first chamber from diversion cavity; Another road of refrigerant gets into the diversion cavity that heats choke valve; Get into the valve pocket in the water conservancy diversion cover through flow-guiding channel then; Spool is passed toward the inner oral area of throttling passage; Sealing throttling passage mouth makes bidirectional throttling valve have only throttling passage, valve pocket, flow-guiding channel, the diversion cavity of refrigeration choke valve to form the path from second chamber to first chamber.When rising when heating throttling action; Medium is divided into two-way after first chamber entering of tube connector; One the tunnel gets into the throttling passage that heats choke valve, and spool is passed toward the valve pocket bottom in the fairlead, opens the inner oral area of throttling passage; Flow to diversion cavity from flow-guiding channel after making medium be full of valve pocket, flow to second chamber from diversion cavity; Heat the diversion cavity that another road of medium gets into the refrigeration choke valve; Get into the valve pocket in the water conservancy diversion cover through flow-guiding channel then; Spool is passed toward the inner oral area of throttling passage; Sealing throttling passage mouth makes bidirectional throttling valve only heat the throttling passage of choke valve, valve pocket, flow-guiding channel, the path of diversion cavity composition from first chamber to second chamber.
As to such scheme replenish and perfect, the utility model also comprises following technical characterictic:
Described valve seat outer wall upper edge circumferentially is provided with groove, and described tube connector tube wall convex snaps in this groove, and valve seat and tube connector are interfixed.
Described valve seat two ends are provided with filtering screen, and filtering screen and tube connector inwall are fastening.
The described inner oral area of throttling passage that is positioned at the diversion cavity bottom is provided with the sealing pair that cooperates with spool, plays the enhancing sealing function.
Described spool is a spherical structure, and described sealing pair can also be the circular arc convex for imitative ball shape cambered surface or taper cambered surface.
Described spool also can be conical structure, and then described sealing pair is the taper cambered surface or is the circular arc convex.
The circulation area of said flow-guiding channel is not less than the circulation area of throttling passage.
Described refrigeration choke valve becomes center line to laterally arrange with the throttling passage that heats choke valve.
Use the utility model can reach following beneficial effect: through be provided with simultaneously on the valve seat in being fixed in tube connector channel flow to opposite refrigeration choke valve with heat choke valve, reduced parts, practiced thrift cost; Spool all moves in the valve pocket in the water conservancy diversion cover, has avoided spool that the fastening of valve seat and tube connector arrived in the shock effect of valve seat, the leakage that can not produce valve seat and the fastening place of tube connector, the service life of prolongation choke valve.
Description of drawings
Fig. 1 is the profile of existing bidirectional throttling valve.
Fig. 2 is the profile of the utility model.
Fig. 3 is the partial sectional view of valve seat in the utility model.
Fig. 4 is the front view of water conservancy diversion cover in the utility model.
Fig. 5 is the A-A cutaway view of Fig. 4.
The specific embodiment
Be described in detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
Like Fig. 2～shown in Figure 5; The utility model comprises tube connector 7, filtering screen 9, valve seat 13, choke valve and heat choke valve freezes; Valve seat 13 outer wall upper edges circumferentially are provided with groove, and tube connector tube wall convex snaps in this groove, and valve seat 13 and tube connector 7 are interfixed; Valve seat outer wall and tube connector internal chamber wall form and closely cooperate, and the tube connector inner chamber is separated into first chamber 8 and second chamber 15; The refrigeration choke valve with heat choke valve and comprise that respectively fairlead 16, spool 12, throttling passage 14 and 10, two throttling passages 14 of diversion cavity all are arranged on the valve seat 13 and become center line to laterally arrange, two diversion cavity 10 are divided into the two ends of valve seat; The inner port portion of throttling passage 14 is positioned at the bottom of diversion cavity 10, and fairlead 16 is provided with valve pocket 17, valve pocket 17 1 end openings, end sealing; Fairlead 16 fixedly is flush-mounted in the diversion cavity 10; Outer wall and diversion cavity wall closely cooperate, and the valve pocket opening is towards the diversion cavity bottom, and spool 12 is placed in the valve pocket 17; Spool 12 is a spherical structure; The inner oral area of throttling passage that is positioned at the diversion cavity bottom is provided with the sealing pair 18 that cooperates with spool, and sealing pair 18 can also be the circular arc convex for imitative ball shape cambered surface or taper cambered surface; Fairlead 16 sides are provided with guide face 19, and guide face 19 is communicated with valve pocket 17 through flow-guiding channel 20; The circulation area of flow-guiding channel 11 is not less than the circulation area of throttling passage 14; The diversion cavity of refrigeration choke valve is communicated with first chamber 8, and throttling passage is communicated with second chamber 15; The diversion cavity that heats choke valve is communicated with second chamber 15, and throttling passage is communicated with first chamber 8.
As another kind of embodiment, spool 12 also can be conical structure, and then described sealing pair 18 is for the taper cambered surface or be the circular arc convex.
Claims (11)
1. an air-conditioning system is used bidirectional throttling valve; Comprise tube connector, choke valve and heat choke valve freezes; The fastening valve seat that is equipped with in the described tube connector inner chamber, valve seat outer wall and tube connector internal chamber wall form and closely cooperate, and the tube connector inner chamber is separated into first chamber and second chamber; It is characterized in that: described refrigeration choke valve with heat choke valve and comprise fairlead, spool, throttling passage and diversion cavity respectively, throttling passage all is arranged on the described valve seat, diversion cavity is divided into the two ends of valve seat; The inner port portion of throttling passage is positioned at the bottom of diversion cavity; Fairlead is provided with valve pocket, valve pocket one end opening, end sealing, and fairlead fixedly is flush-mounted in the diversion cavity; The valve pocket opening is towards the diversion cavity bottom, and spool is placed in the valve pocket; The fairlead side is provided with guide face, and guide face is communicated with valve pocket through flow-guiding channel; The diversion cavity of refrigeration choke valve is communicated with described first chamber, and throttling passage is communicated with described second chamber; The diversion cavity that heats choke valve is communicated with described second chamber, and throttling passage is communicated with described first chamber.
2. a kind of air-conditioning system according to claim 1 is used bidirectional throttling valve, it is characterized in that: described valve seat outer wall upper edge circumferentially is provided with groove, and described tube connector tube wall convex snaps in this groove, and valve seat and tube connector are interfixed.
3. a kind of air-conditioning system according to claim 2 is used bidirectional throttling valve, it is characterized in that: the described throttling passage oral area that is positioned at valve pocket is provided with the sealing pair that cooperates with spool.
4. a kind of air-conditioning system according to claim 3 is used bidirectional throttling valve, it is characterized in that: the circulation area of said flow-guiding channel is not less than the circulation area of throttling passage.
5. a kind of air-conditioning system according to claim 4 is used bidirectional throttling valve, it is characterized in that: described refrigeration choke valve laterally arranges with the throttling passage that heats choke valve.
6. a kind of air-conditioning system according to claim 5 is used bidirectional throttling valve, it is characterized in that: described valve seat two ends are provided with filtering screen, and filtering screen and tube connector inwall are fastening.
7. a kind of air-conditioning system according to claim 6 is used bidirectional throttling valve, it is characterized in that: described spool is a spherical structure.
8. a kind of air-conditioning system according to claim 6 is used bidirectional throttling valve, it is characterized in that: described spool is a conical structure.
9. a kind of air-conditioning system according to claim 7 is used bidirectional throttling valve, it is characterized in that: described sealing pair is imitative ball shape cambered surface.
10. use bidirectional throttling valve according to claim 7 or 8 described a kind of air-conditioning systems, it is characterized in that: described sealing pair is the taper cambered surface.
11. use bidirectional throttling valve according to claim 7 or 8 described a kind of air-conditioning systems, it is characterized in that: described sealing pair is the circular arc convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220018940XU CN202420049U (en) | 2012-01-17 | 2012-01-17 | Bidirectional throttle valve for air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220018940XU CN202420049U (en) | 2012-01-17 | 2012-01-17 | Bidirectional throttle valve for air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420049U true CN202420049U (en) | 2012-09-05 |
Family
ID=46744806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220018940XU Expired - Fee Related CN202420049U (en) | 2012-01-17 | 2012-01-17 | Bidirectional throttle valve for air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865158A (en) * | 2021-09-29 | 2021-12-31 | 珠海格力电器股份有限公司 | Throttle valve, air conditioner and working method of air conditioner |
-
2012
- 2012-01-17 CN CN201220018940XU patent/CN202420049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865158A (en) * | 2021-09-29 | 2021-12-31 | 珠海格力电器股份有限公司 | Throttle valve, air conditioner and working method of air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20190117 |