CN1563751A - Refrigerating valve - Google Patents
Refrigerating valve Download PDFInfo
- Publication number
- CN1563751A CN1563751A CN 200410014536 CN200410014536A CN1563751A CN 1563751 A CN1563751 A CN 1563751A CN 200410014536 CN200410014536 CN 200410014536 CN 200410014536 A CN200410014536 A CN 200410014536A CN 1563751 A CN1563751 A CN 1563751A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve rod
- rod
- sealing
- 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.)
- Pending
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The valve is composed of the valve body, valve cap, valve shaft, valve petal and valve rod cover. The inlet and outlet pipes are fixed on the valve body. The valve rod cover is set on the cap. The valve petal is set at the front end of the shaft. The front end of the valve shaft and sealing ring are connected. The valve body is connected with the valve cap through the bolt and sealed by the '0' style sealing ring. The valve shaft is sealing connected with the valve petal, the cone interface forms the converse sealing. The sealing ring is settled between the sealing cap and valve rod cover, and between the valve shaft and valve cap.
Description
Affiliated technical field
The present invention relates to a kind of valve, especially a kind of steel valve that is applicable to refrigeration agent that all are general and noncorrosive gases and liquid control.
Background technique
Valve is in refrigeration, freezing, air-conditioning, heat pump, chemical industry, extensively utilization in oil and other industry, the steel valve that is used for the control of general refrigeration agent and noncorrosive gases and liquid at present mostly adopts the valve of conventional construction, valve such as stop valve commonly used, regulate stop valve, safety check, screw down nonreturn valve etc., because its structural reason, make and have the slipper seal point between valve rod and valve body, be difficult to solve the sealing problem of refrigeration agent, owing to making the production technology reason, may there be off-centre in valve rod, the sealing when if flap and valve body decentraction can influence valve closing, leakage phenomenon appears, and flap is subjected to frictional force to influence serious wear, influence working life, the valve seat of middle small dimension generally adopts forged steel structure, and the valve seat of the valve of big specification generally adopts steel-pipe construction, and valve seat connects the employing flange and connects with pipeline, be prone to leakage phenomenon.
Summary of the invention
In order to overcome the deficiency of existing valve, the invention provides in a kind of using process not easy to wear, good seal performance, the refrigeration valve of long service life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of refrigeration valve, has valve body, valve gap, valve rod, valve stem casing, flap, valve body is provided with inlet pipe and goes out pipe, valve stem casing is arranged on the valve gap, and fuse with valve gap, flap is arranged on the valve rod front end, valve stem casing is enclosed within on the valve rod, valve rod is threaded with valve stem casing, valve body is connected with the valve cover chamber bolt, seal with " O " type circle between valve gap and valve body, valve rod is provided with boss, and flap is provided with the U-shaped chute, and valve rod and flap are slidingly connected by the U-shaped chute formation that the boss on the valve rod snaps on the flap, the inlet pipe connecting end inner chamber and the flap head of valve body are respectively arranged with the conical surface, valve body contacts by the conical surface with flap and forms back seal, is provided with sealing cover between valve rod and valve stem casing, and sealing cover is threaded with valve stem casing, with the bonded washer sealing, be provided with the sealing of double-layer seal circle between valve rod and sealing cover between sealing cover and valve stem casing.
Rotary valve rod, valve rod drives flap and moves down, the conical surface of flap head contacts with the conical surface of body cavity, valve closing, the counterrotating valve rod is valve open then, as valve rod and valve body decentraction, then be connected with valve stem slides because of flap, flap can be adjusted to valve body concentric automatically, reliable sealing when guaranteeing valve closing, the heavy wear of avoiding flap and valve body to cause because of decentraction.
The invention has the beneficial effects as follows; compact structure; valve body and flap adopt back seal to safeguard valve rod under working state of system easily; be provided with the sealing of double-layer seal circle between valve rod and sealing cover; inlet pipe with go out pipe and can directly be connected with pipeline welding; sealability is better, and flap and valve body concentricity are regulated automatically, and sealing when having guaranteed valve closing and protection flap are avoided the influence of frictional force.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of refrigeration valve of the present invention.
Fig. 2 is the structural representation of flap.
Fig. 3 is the plan view of Fig. 2.
Among the figure 1, valve body, 2, valve gap, 3, valve rod, 31, boss, 4, valve stem casing, 5, flap, 51, the U-shaped chute, 6, inlet pipe, 7, go out pipe, 8, sealing cover, 9, seal ring.
Embodiment
A kind of refrigeration valve as shown in Figure 1, has valve body 1, valve gap 2, valve rod 3, valve stem casing 4, flap 5, valve body 1 is provided with inlet pipe 6 and goes out pipe 7, valve stem casing 4 is arranged on the valve gap 2, and fuse with valve gap 2, flap 5 is arranged on valve rod 3 front ends, valve stem casing 4 is enclosed within on the valve rod 3, valve rod 3 is threaded with valve stem casing 4,4 of valve rod 3 and valve stem casings are provided with sealing cover 8, sealing cover 8 is threaded with valve stem casing 4, and 4 of sealing cover 8 and valve stem casings be with the bonded washer sealing, and 8 of valve rod 3 and sealing covers are provided with two " O " type circles or fall " Y " type circle 9 and seal, 2 bolts of valve body 1 and valve gap are connected, 1 of valve gap 2 and valve body are with the sealing of " O " type circle, and valve rod 3 is provided with boss 31, as Fig. 2, shown in 3, flap 5 is provided with U-shaped chute 51, valve rod 3 is slidingly connected by U-shaped chute 51 formation that the boss on the valve rod 3 31 snaps on the flap 5 with flap 5, and the inlet pipe 6 connecting end inner chambers and flap 5 heads of valve body 1 are respectively arranged with the conical surface, and valve body contacts by the conical surface with flap and forms back seal.
During work, rotary valve rod 3, valve rod 3 drives flap 5 and moves down, and the conical surface of flap 5 heads contacts with the conical surface of valve body 1 inner chamber and forms back seal, valve closing, 3 valve opens of counterrotating valve rod, as valve rod 3 and valve body 1 decentraction, then because of flap 5 and valve rod 3 are slidingly connected, flap 5 can be adjusted to valve body 1 concentric automatically, reliable sealing when guaranteeing valve closing, the heavy wear of avoiding flap 5 and valve body 1 to cause because of decentraction.Under working state of system, safeguard flap 5, valve rod 3, only need unclamp the connecting bolt of 2 of valve body 1 and valve gaps, valve stem casing 4, valve rod 3 and flap 5 can be safeguarded flap 5, valve rod 3 from valve body 1 interior taking-up as needing.
Refrigeration valve of the present invention; compact structure; valve body and flap adopt back seal; can under working state of system, safeguard easily valve rod, flap; on valve rod, adopt the sealing of double-layer seal circle, inlet pipe with go out pipe and can directly be connected good seal performance with pipeline welding; the concentricity of flap and valve body can be regulated automatically, and sealing when having guaranteed valve closing and protection flap are avoided the influence of frictional force.
Claims (2)
1. refrigeration valve, it is characterized in that: have valve body (1), valve gap (2), valve rod (3), valve stem casing (4), flap (5), valve body (1) is provided with inlet pipe (6) and goes out pipe (7), valve stem casing (4) is arranged on the valve gap (2), and fuse with valve gap (2), flap (5) is arranged on valve rod (3) front end, valve stem casing (4) is enclosed within on the valve rod (3), valve rod (3) is threaded with valve stem casing (4), bolt is connected between valve body (1) and valve gap (2), seal with O type circle between valve gap (2) and valve body (1), valve rod (3) is provided with boss (31), flap (5) is provided with U-shaped chute (51), valve rod (3) is slidingly connected by U-shaped chute (51) formation that the boss (31) on the valve rod (3) snaps on the flap (5) with flap (5), inlet pipe (6) the connecting end inner chamber of valve body (1) and flap (5) head are respectively arranged with the conical surface, valve body (1) contacts by the conical surface with flap (5) and forms back seal, be provided with sealing cover (8) between valve rod (3) and valve stem casing (4), sealing cover (8) is threaded with valve stem casing (4), with the bonded washer sealing, be provided with seal ring (9) sealing between valve rod (3) and sealing cover (8) between sealing cover (8) and valve stem casing (4).
2. refrigeration valve according to claim 1 is characterized in that: described seal ring (9) is two " O " type circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014536 CN1563751A (en) | 2004-04-02 | 2004-04-02 | Refrigerating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014536 CN1563751A (en) | 2004-04-02 | 2004-04-02 | Refrigerating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1563751A true CN1563751A (en) | 2005-01-12 |
Family
ID=34478425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410014536 Pending CN1563751A (en) | 2004-04-02 | 2004-04-02 | Refrigerating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1563751A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896110A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop valve for industrial refrigeration |
| CN104896183A (en) * | 2015-06-10 | 2015-09-09 | 许炎章 | Right angle type stop valve for refrigeration device |
| CN104976355A (en) * | 2015-06-10 | 2015-10-14 | 许炎章 | Stop valve for refrigeration equipment |
-
2004
- 2004-04-02 CN CN 200410014536 patent/CN1563751A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896110A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop valve for industrial refrigeration |
| CN104896183A (en) * | 2015-06-10 | 2015-09-09 | 许炎章 | Right angle type stop valve for refrigeration device |
| CN104976355A (en) * | 2015-06-10 | 2015-10-14 | 许炎章 | Stop valve for refrigeration equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202418669U (en) | Flat valve of high sealing property | |
| CN201326826Y (en) | High-pressure multistage step-down cage balanced type angle valve | |
| CN1563751A (en) | Refrigerating valve | |
| CN2700651Y (en) | Refrigerating valve | |
| CN2416290Y (en) | Cone seal stop valve for liquid caustic soda | |
| CN111022677A (en) | Four-connecting-rod pneumatic discharge valve | |
| CN208565787U (en) | A kind of angle stop valves of dual-seal | |
| CN213117592U (en) | Check valve assembly for high-pressure pump | |
| CN201925164U (en) | Horizontal rolling rotor compressor with safety protective valve | |
| CN2683949Y (en) | Steel refrigerating valve | |
| CN201071937Y (en) | Balance type pneumatic break valve | |
| CN204985876U (en) | Axial -flow type is soft seal valve clack assembly for check valve | |
| CN220523319U (en) | Bypass cut-off valve | |
| CN220396498U (en) | Actuating mechanism for regulating valve | |
| CN218992465U (en) | High-pressure cryogenic axial flow check valve with good sealing effect | |
| CN212429821U (en) | Top-mounted type hemisphere valve special for sludge | |
| CN1534227A (en) | Cut-off filtering composite valve | |
| CN2460810Y (en) | Full-sealed no-leakage multipurpose valve | |
| CN2504452Y (en) | Multifunctional atmospheric valve | |
| CN213176167U (en) | Water cooler power sealing device of vertical plastic pump | |
| CN219317940U (en) | Throttling air tap and throttling device | |
| CN221120329U (en) | Centrifugal pump with pump body mouth ring | |
| CN2406119Y (en) | Double-sealed cut-off valve | |
| CN1563750A (en) | Steel refrigerating valve | |
| CN213393565U (en) | Oil exploitation governing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |