CN202420048U - Bidirectional throttling valve - Google Patents
Bidirectional throttling valve Download PDFInfo
- Publication number
- CN202420048U CN202420048U CN2012200172150U CN201220017215U CN202420048U CN 202420048 U CN202420048 U CN 202420048U CN 2012200172150 U CN2012200172150 U CN 2012200172150U CN 201220017215 U CN201220017215 U CN 201220017215U CN 202420048 U CN202420048 U CN 202420048U
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- Prior art keywords
- valve
- throttling
- spool
- bidirectional
- flow
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Abstract
The utility model relates to a bidirectional throttling valve and belongs to valves. Existing bidirectional throttling valves are high in processing difficulty and manufacturing cost, and components are easy to be worn. The bidirectional throttling valve comprises a connecting tube, a valve seat, a refrigerating throttling valve and a heating throttling valve, the connecting tube is divided into a first cavity and a second cavity by the valve seat which is in close fit with the connecting tube, valve cavities, throttling channels and flow guide channels of the refrigerating throttling valve and the heating throttling valve are arranged on the valve seat, a valve spool limiting mechanism is mounted at an opening of each valve cavity located on a corresponding end surface of the valve seat and is provided with a valve spool driving flow channel, an inner port of each valve spool driving flow channel located in the corresponding valve cavity and an inner port of the corresponding throttling channel are arranged at two ends of a sliding direction of a corresponding valve spool, an inner port of each flow guide channel is located between an opening of the corresponding valve spool driving flow channel and an opening of the corresponding throttling channel opening, the throttling channel of the refrigerating throttling valve is communicated with the second cavity, the flow guide channel and the valve spool driving flow channel of the refrigerating throttling valve are communicated with the first cavity, the throttling channel of the heating throttling valve is communicated with the first cavity, and the flow guide channel and the valve spool driving flow channel of the heating throttling valve are communicated with the second cavity. The bidirectional throttling valve has the advantages that impact and cost are low.
Description
Technical field
The utility model belongs to valve, especially is used for air-conditioning 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 bidirectional throttling valve of low cost of manufacture, long service life.
For this reason; The utility model adopts following technical scheme: a kind of bidirectional throttling valve, comprise tube connector, the choke valve and heat choke valve of freezing, the refrigeration choke valve with heat choke valve and comprise valve pocket, spool, throttling passage, flow-guiding channel and spool position-limit mechanism respectively; Spool is placed in the valve pocket; It is characterized in that: 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; Described refrigeration choke valve all is arranged on the described valve seat with the valve pocket, throttling passage and the flow-guiding channel that heat choke valve; Valve pocket is provided with opening; The installation channel that is used for spool, the spool position-limit mechanism is installed on the valve pocket opening part, and spool is spacing in valve pocket; The spool position-limit mechanism is provided with spool and drives circulation road; Throttling passage, flow-guiding channel and spool drive circulation road and all are communicated with valve pocket, are positioned at the inner oral area of spool driving circulation road of valve pocket and the two ends that the throttling passage inner port partly is located at the spool glide direction, and flow-guiding channel inner port portion is positioned at spool and drives between inner oral area of circulation road and the inner oral area of throttling passage; The throttling passage of refrigeration choke valve is communicated with described second chamber, and the flow-guiding channel of refrigeration choke valve, spool drive circulation road and be communicated with described first chamber; The throttling passage that heats choke valve is communicated with described first chamber, and the flow-guiding channel, the spool that heat choke valve drive circulation road and be communicated with described second 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; Spool is driven the circulation road oral area toward spool pass, the sealing spool drives the circulation road junction, and medium flows to first chamber from flow-guiding channel after being full of valve pocket; Another road drives circulation road through the spool that heats choke valve and gets into valve pocket; Spool is passed toward the throttling passage oral area; Sealing throttling passage mouth makes bidirectional throttling valve have only the throttling passage of refrigeration choke valve, flow-guiding channel 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, the one tunnel gets into the throttling passage that heats choke valve, spool is driven the circulation road oral area toward spool pass; The sealing spool drives the circulation road junction, and medium flows to second chamber from flow-guiding channel after being full of valve pocket; Another road drives circulation road entering valve pocket through the spool of refrigeration choke valve; Spool is passed toward the throttling passage oral area; Sealing throttling passage mouth makes bidirectional throttling valve only heat the throttling passage of choke valve, the path of flow-guiding channel 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.
Both sides, end, described valve seat two ends are provided with guide face, and described flow-guiding channel external port portion is positioned on the guide face.
Further, described flow-guiding channel is for connecting the slit of valve pocket and guide face.
Described spool position-limit mechanism is the hollow back-up ring, and the hollow cavity of back-up ring drives circulation road as described spool.
The described throttling passage oral area that is positioned at valve pocket 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 laterally arranges with the throttling passage that heats choke valve.
Described volume valve seat two ends end face is provided with cylindrical protrusions, and its cross-sectional area is less than the cross-sectional area in valve seat stage casing, and described valve pocket is arranged in this cylindrical protrusions.
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 on valve seat, 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 main apparent direction partial sectional view of first kind of embodiment of valve seat in the utility model.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the main apparent direction partial sectional view of second kind of embodiment of valve seat in the utility model.
Fig. 6 is the right view of second kind of embodiment of valve seat in the utility model.
Fig. 7 is the main apparent direction partial sectional view of the third embodiment of valve seat in the utility model.
Fig. 8 is the B-B cutaway view of Fig. 7.
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 8; The utility model comprises tube connector 7, filtering screen 9, choke valve and heat choke valve freezes; The fastening valve seat 11 that is equipped with in tube connector 7 inner chambers, valve seat 11 outer wall upper edges circumferentially are provided with groove, and tube connector 7 tube wall convexes snap in this groove; The internal chamber wall of valve seat 11 outer walls and tube connector 7 forms and closely cooperates, and the tube connector inner chamber is separated into first chamber 8 and second chamber 13; Filtering screen 9 is arranged at valve seat 11 two ends, and fastening with the tube connector inwall; The refrigeration choke valve with heat choke valve and comprise valve pocket 17, spherical valve core 14, throttling passage 16, flow-guiding channel 12 and spool position-limit mechanism 10 respectively; The circulation area of flow-guiding channel 12 is not less than the circulation area of throttling passage 16, and the refrigeration choke valve all is arranged on the valve seat 11 with the valve pocket, throttling passage and the flow-guiding channel that heat choke valve, and the refrigeration choke valve laterally arranges with the throttling passage that heats choke valve; Spool 14 is placed in the valve pocket 17; Valve pocket 17 is provided with opening, is used for the installation channel of spool, and spool position-limit mechanism 10 is the back-up ring of hollow; Back-up ring is installed on the valve pocket opening part; Spool is spacing in valve pocket, and the hollow cavity of back-up ring drives circulation road 18 as spool, and throttling passage 16, flow-guiding channel 12 and spool drive circulation road 18 and all be communicated with valve pocket 17; The inner port portion of throttling passage 16 is positioned at the bottom of valve pocket 17; Make inner oral area of spool driving circulation road and throttling passage inner port partly be located at the two ends of spool glide direction, flow-guiding channel 12 is a through hole, and its inner port portion is positioned at spool and drives between inner oral area of circulation road and the inner oral area of throttling passage; The inner oral area of throttling passage is provided with the imitative ball shape cambered surface sealing pair 15 that cooperates with spool, and sealing pair 15 also can be taper cambered surface or circular arc convex; The both sides of end, valve seat 11 two ends are provided with guide face, and flow-guiding channel 12 external port portions are positioned on this guide face; The throttling passage of refrigeration choke valve and second chamber 13 are communicated with, and the guide face that the flow-guiding channel of refrigeration choke valve joins is communicated with described first chamber 8, and the flow-guiding channel of feasible refrigeration choke valve, spool drive circulation road and be communicated with described first chamber 8; The throttling passage that heats choke valve is communicated with described first chamber 8, heats the guide face that the flow-guiding channel of choke valve joins and is communicated with described second chamber 13, makes the flow-guiding channel, the spool that heat choke valve drive circulation road and is communicated with described second chamber 13.
As another kind of embodiment, the valve seat two ends end face in the technique scheme is provided with cylindrical protrusions, and its cross-sectional area replaces being arranged at the guide face of both sides, end, valve seat two ends less than the cross-sectional area in valve seat stage casing with cylindrical protrusions.
Flow-guiding channel 12 can also be for connecting the slit of valve pocket and guide face in the technique scheme.
Claims (15)
1. bidirectional throttling valve; Comprise tube connector, choke valve and heat choke valve freezes; The refrigeration choke valve with heat choke valve and comprise valve pocket, spool, throttling passage, flow-guiding channel and spool position-limit mechanism respectively, spool is placed in the valve pocket, it is characterized in that: 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; Described refrigeration choke valve all is arranged on the described valve seat with the valve pocket, throttling passage and the flow-guiding channel that heat choke valve; Valve pocket is provided with opening; The installation channel that is used for spool, the spool position-limit mechanism is installed on the valve pocket opening part, and spool is spacing in valve pocket; The spool position-limit mechanism is provided with spool and drives circulation road; Throttling passage, flow-guiding channel and spool drive circulation road and all are communicated with valve pocket, are positioned at the inner oral area of spool driving circulation road of valve pocket and the two ends that the throttling passage inner port partly is located at the spool glide direction, and flow-guiding channel inner port portion is positioned at spool and drives between inner oral area of circulation road and the inner oral area of throttling passage; The throttling passage of refrigeration choke valve is communicated with described second chamber, and the flow-guiding channel of refrigeration choke valve, spool drive circulation road and be communicated with described first chamber; The throttling passage that heats choke valve is communicated with described first chamber, and the flow-guiding channel, the spool that heat choke valve drive circulation road and be communicated with described second chamber.
2. a kind of bidirectional throttling valve according to claim 1 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 bidirectional throttling valve according to claim 2 is characterized in that: described valve seat two ends end face is provided with cylindrical protrusions, and described valve pocket is arranged in this cylindrical protrusions.
4. a kind of bidirectional throttling valve according to claim 2 is characterized in that: both sides, end, described valve seat two ends are provided with guide face, and described flow-guiding channel external port portion is positioned on the guide face.
5. a kind of bidirectional throttling valve according to claim 4 is characterized in that: described flow-guiding channel is for connecting the slit of valve pocket and guide face.
6. according to claim 3 or 4 described a kind of bidirectional throttling valves, it is characterized in that: described spool position-limit mechanism is the hollow back-up ring, and the hollow cavity of back-up ring drives circulation road as described spool.
7. a kind of bidirectional throttling valve according to claim 6 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.
8. a kind of bidirectional throttling valve according to claim 7 is characterized in that: the circulation area of said flow-guiding channel is not less than the circulation area of throttling passage.
9. a kind of bidirectional throttling valve according to claim 8 is characterized in that: described refrigeration choke valve laterally arranges with the throttling passage that heats choke valve.
10. a kind of bidirectional throttling valve according to claim 9 is characterized in that: described valve seat two ends are provided with filtering screen, and filtering screen and tube connector inwall are fastening.
11. a kind of bidirectional throttling valve according to claim 10 is characterized in that: described spool is a spherical structure.
12. a kind of bidirectional throttling valve according to claim 10 is characterized in that: described spool is a conical structure.
13. a kind of bidirectional throttling valve according to claim 11 is characterized in that: described sealing pair is imitative ball shape cambered surface.
14. according to claim 11 or 12 described a kind of bidirectional throttling valves, it is characterized in that: described sealing pair is the taper cambered surface.
15. according to claim 11 or 12 described a kind of bidirectional throttling valves, it is characterized in that: described sealing pair is the circular arc convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200172150U CN202420048U (en) | 2012-01-16 | 2012-01-16 | Bidirectional throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200172150U CN202420048U (en) | 2012-01-16 | 2012-01-16 | Bidirectional throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420048U true CN202420048U (en) | 2012-09-05 |
Family
ID=46744805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200172150U Expired - Fee Related CN202420048U (en) | 2012-01-16 | 2012-01-16 | Bidirectional throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855335A (en) * | 2018-11-30 | 2019-06-07 | 青岛海尔空调器有限总公司 | Bidirectional throttling valve for air conditioner and the air conditioner with it |
| CN111765671A (en) * | 2019-04-02 | 2020-10-13 | 浙江盾安禾田金属有限公司 | Two-way circulation expansion valve and device with same |
-
2012
- 2012-01-16 CN CN2012200172150U patent/CN202420048U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855335A (en) * | 2018-11-30 | 2019-06-07 | 青岛海尔空调器有限总公司 | Bidirectional throttling valve for air conditioner and the air conditioner with it |
| CN109855335B (en) * | 2018-11-30 | 2021-10-29 | 青岛海尔空调器有限总公司 | Bidirectional throttle valve for air conditioner and air conditioner with bidirectional throttle valve |
| CN111765671A (en) * | 2019-04-02 | 2020-10-13 | 浙江盾安禾田金属有限公司 | Two-way circulation expansion valve and device with same |
| CN111765671B (en) * | 2019-04-02 | 2022-06-17 | 浙江盾安禾田金属有限公司 | Two-way circulation expansion valve and device with same |
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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 |
Granted publication date: 20120905 Termination date: 20190116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |