CN208831824U - Regulation safety valve - Google Patents
Regulation safety valve Download PDFInfo
- Publication number
- CN208831824U CN208831824U CN201821187332.5U CN201821187332U CN208831824U CN 208831824 U CN208831824 U CN 208831824U CN 201821187332 U CN201821187332 U CN 201821187332U CN 208831824 U CN208831824 U CN 208831824U
- Authority
- CN
- China
- Prior art keywords
- valve body
- compression bar
- back pressure
- welded
- adjusting sleeve
- 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 - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model proposes regulation safety valves, including handball, the lower end of the handball is welded with compression bar, gap is equipped with upper valve body on the outer wall of the compression bar, regulating wheel is welded on the compression bar and positioned at the upper end of upper valve body, the lower half portion of the upper valve body offers adjusting cavity, spring is installed in the adjusting cavity, the upper end of the spring is welded on compression bar and supports to the inner wall upper end of adjusting cavity, the lower end two sides of the upper valve body offer mounting groove, the lower end of the upper valve body is inserted with back pressure adjusting sleeve by mounting groove, sealing mechanism is installed in the back pressure adjusting sleeve.
Description
Technical field
The utility model relates to safety valve technical fields, and in particular to regulation safety valve.
Background technique
Spring micro-open type safety valve is the power using the power of compressed spring come balanced action on flap.Spiral coil spring
Decrement can be adjusted by rotating the adjusting nut above it, safety can be corrected as needed using this structure
Unlatching (adjusting) pressure of valve.Spring micro-open type safety valve portable construction is compact, and sensitivity is also relatively high, installation site not by
Limitation, and because small to the sensibility of vibration, it can be used on mobile pressure vessel；
Spring on existing safety valve valve is affected by the high temperature to be easy to reduce elastic force, is used for the higher container of temperature
When, it is often required to consider the heat-insulated or heat dissipation problem of spring, is just able to maintain the sensitivity of safety valve, and the leakproofness of flap is poor,
Phenomenon is let out before occurring when being easy that safety valve is made to close on set-pressure under pressure medium.
Utility model content
Based on the above issues, the utility model aim is to provide a kind of leakproofness good, can prevent it is heated caused by bullet
Spring flexibility decrease keeps the regulation safety valve of safe threshold sensitivity.
In view of the above problems, following technical solution: regulation safety valve, including handball are provided, the lower end weldering of the handball
It is connected to compression bar, gap is equipped with upper valve body on the outer wall of the compression bar, on the compression bar and is located at the upper end of upper valve body and is welded with
Regulating wheel, the lower half portion of the upper valve body offer adjusting cavity, and spring, the upper end of the spring are equipped in the adjusting cavity
It is welded on compression bar and supports to the inner wall upper end of adjusting cavity, the lower end two sides of the upper valve body offer mounting groove, the upper valve
The lower end of body is inserted with back pressure adjusting sleeve by mounting groove, is equipped with sealing mechanism in the back pressure adjusting sleeve.
In above structure, compression bar is adjusted by rotating regulating wheel, by the decrement of compression bar adjustment spring, makes valve
Accurate set-pressure can be quickly and easily obtained, by the adjustment of back pressure adjusting sleeve, can get and suitably return seat pressure difference, on
Timing, makes the reduction of valve back pressure, and lower timing improves valve back pressure.
The utility model is further arranged to, and the lower end of the back pressure adjusting sleeve is equipped with lower valve body, and back pressure adjusting sleeve
Gap is connected in lower valve body, and the lower valve body uses hollow structure, and the upper end that back pressure adjusting sleeve is located on the compression bar is welded
There is flap, the lower end of the spring is welded on flap.
Using the above structure, flap, the decrement of flap adjustment spring are adjusted by compression bar.
The utility model is further arranged to, and the sealing mechanism includes gasket and sealing ring, the lower end of the compression bar
Through backpressure regulation set, the compression bar is fixedly connected with gasket close to the position that backpressure regulation covers, the backpressure regulation set
Position on outer wall close to lower valve body is fixedly connected with sealing ring.
Using the above structure, the leakproofness of flap and back pressure adjusting sleeve, the bullet of raising are improved by gasket and sealing ring
The thermal insulation of spring lets out phenomenon before appearance when preventing safety valve from closing on set-pressure under pressure medium.
The utility model is further arranged to, and is threaded with the on the outer wall of the lower valve body and back pressure adjusting sleeve jointly
One DN50 nut, the side opening of the lower valve body are threaded with DN40 connector, spiral shell at the lower ending opening of the lower valve body
Line is connected with the 2nd DN50 nut, and the inner wall lower gap of the lower valve body is connected with lower valve base, the lower thread of the compression bar
It is connected to the upper end of lower valve base.
Using the above structure, lower valve body is connected with back pressure adjusting sleeve by the first DN50 nut, the lower ending opening of lower valve body
It is sealed by the 2nd DN50 nut, when adjusting compression bar, the lower end of compression bar is rotated in the upper end of lower valve base.
The utility model has the beneficial effects that backpressure regulation set is under by the gasket between compression bar and backpressure regulation set
Sealing ring between valve body promotes the leakproofness of flap, keeps the thermal insulation of safety valve stronger, prevent when regulating wheel is adjusted
Spring is weakened by thermoelasticity, keeps the sensitivity of safety valve, going out when preventing safety valve from closing on set-pressure under pressure medium
Phenomenon is let out before existing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the compression bar schematic diagram of the utility model.
Figure label meaning: 1- handball；2- compression bar；3- regulating wheel；4- upper valve body；5- spring；6- flap；7- backpressure regulation
Set；8- gasket；The first DN50 nut of 9-；10- sealing ring；11- lower valve body；12- lower valve base；13-DN40 connector；14- second
DN50 nut.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Regulation safety valve as shown in Figure 1 to Figure 2, including handball 1, the lower end of the handball 1 is welded with compression bar 2, described
Gap is equipped with upper valve body 4 on the outer wall of compression bar 2, on the compression bar 2 and is located at the upper end of upper valve body 4 and is welded with regulating wheel 3, institute
The lower half portion for stating upper valve body 4 offers adjusting cavity, and spring 5 is equipped in the adjusting cavity, and the upper end of the spring 5 is welded on
It on compression bar 2 and supports to the inner wall upper end of adjusting cavity, the lower end two sides of the upper valve body 4 offer mounting groove, the upper valve body 4
Lower end back pressure adjusting sleeve 7 is inserted with by mounting groove, sealing mechanism is installed in the back pressure adjusting sleeve 7.
In above structure, compression bar 2 is adjusted by rotating regulating wheel 3, by the decrement of 2 adjustment spring 5 of compression bar, makes
Valve can quickly and easily obtain accurate set-pressure, by the adjustment of back pressure adjusting sleeve 7, can get and suitably return seat pressure
Difference, upper timing make the reduction of valve back pressure, and lower timing improves valve back pressure.
In the present embodiment, the lower end of the back pressure adjusting sleeve 7 is equipped with lower valve body 11, and 7 gap of back pressure adjusting sleeve connects
In lower valve body 11, the lower valve body 11 uses hollow structure, and the upper end that back pressure adjusting sleeve 7 is located on the compression bar 2 is welded with
The lower end of flap 6, the spring 5 is welded on flap 6.
Using the above structure, flap 6, the decrement of 6 adjustment spring 5 of flap are adjusted by compression bar 2.
In the present embodiment, the sealing mechanism includes gasket 8 and sealing ring 10, and back pressure is run through in the lower end of the compression bar 2
Adjusting set 7, the compression bar 2 are fixedly connected with gasket 8, the outer wall of the backpressure regulation set 7 close to the position of backpressure regulation set 7
The upper position close to lower valve body 11 is fixedly connected with sealing ring 10.
Using the above structure, the leakproofness that flap 6 and back pressure adjusting sleeve 7 are improved by gasket 8 and sealing ring 10, is improved
Spring 5 thermal insulation, let out phenomenon before appearance when preventing safety valve from closing on set-pressure under pressure medium.
In the present embodiment, it is threaded with the first DN50 spiral shell jointly on the lower valve body 11 and the outer wall of back pressure adjusting sleeve 7
Mother, the side opening of the lower valve body 11 are threaded with DN40 connector, and screw thread connects at the lower ending opening of the lower valve body 11
It is connected to the 2nd DN50 nut, the inner wall lower gap of the lower valve body 11 is connected with lower valve base 12, the lower thread of the compression bar 2
It is connected to the upper end of lower valve base 12.
Using the above structure, lower valve body 11 is connected with back pressure adjusting sleeve 7 by the first DN50 nut, the lower end of lower valve body 11
Opening is sealed by the 2nd DN50 nut, and when adjusting compression bar 2, the lower end of compression bar 2 is rotated in the upper end of lower valve base 12.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. regulation safety valve, including handball, it is characterised in that: the lower end of the handball is welded with compression bar, the outer wall of the compression bar
Upper gap is equipped with upper valve body, on the compression bar and is located at the upper end of upper valve body and is welded with regulating wheel, the lower half of the upper valve body
Part offers adjusting cavity, and spring is equipped in the adjusting cavity, and the upper end of the spring is welded on compression bar and supports to adjusting
The inner wall upper end of chamber, the lower end two sides of the upper valve body offer mounting groove, and the lower end of the upper valve body is plugged by mounting groove
There is back pressure adjusting sleeve, sealing mechanism is installed in the back pressure adjusting sleeve.
2. regulation safety valve according to claim 1, it is characterised in that: the lower end of the back pressure adjusting sleeve is equipped with lower valve
Body, and back pressure adjusting sleeve gap is connected in lower valve body, the lower valve body uses hollow structure, is located at back pressure tune on the compression bar
A whole set of upper end is welded with flap, and the lower end of the spring is welded on flap.
3. regulation safety valve according to claim 1, it is characterised in that: the sealing mechanism includes gasket and sealing
Backpressure regulation set is run through in the lower end of circle, the compression bar, and the compression bar is fixedly connected with gasket close to the position that backpressure regulation covers,
Sealing ring is fixedly connected with close to the position of lower valve body on the outer wall of the backpressure regulation set.
4. regulation safety valve according to claim 2, it is characterised in that: on the outer wall of the lower valve body and back pressure adjusting sleeve
It is threaded with the first DN50 nut jointly, the side opening of the lower valve body is threaded with DN40 connector, the lower valve
The 2nd DN50 nut is threaded at the lower ending opening of body, the inner wall lower gap of the lower valve body is connected with lower valve base, institute
The lower thread for stating compression bar is connected to the upper end of lower valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187332.5U CN208831824U (en) | 2018-07-25 | 2018-07-25 | Regulation safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187332.5U CN208831824U (en) | 2018-07-25 | 2018-07-25 | Regulation safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831824U true CN208831824U (en) | 2019-05-07 |
Family
ID=66307266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187332.5U Expired - Fee Related CN208831824U (en) | 2018-07-25 | 2018-07-25 | Regulation safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831824U (en) |
-
2018
- 2018-07-25 CN CN201821187332.5U patent/CN208831824U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20210725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |