CN205331526U - Bellows direction integration reduces back pressure formula relief valve for chlor -alkali - Google Patents
Bellows direction integration reduces back pressure formula relief valve for chlor -alkali Download PDFInfo
- Publication number
- CN205331526U CN205331526U CN201521123147.6U CN201521123147U CN205331526U CN 205331526 U CN205331526 U CN 205331526U CN 201521123147 U CN201521123147 U CN 201521123147U CN 205331526 U CN205331526 U CN 205331526U
- Authority
- CN
- China
- Prior art keywords
- valve
- corrugated tube
- fairlead
- bellows
- chlor
- 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.)
- Active
Links
Abstract
The utility model belongs to the technical field of the relief valve, concretely relates to bellows direction integration reduces back pressure formula relief valve for chlor -alkali, including valve body, disk seat, valve rod and valve gap, the disk seat setting in the bottom of valve body and be linked together with pressure inlet and export, the valve gap setting at the top of valve body, disk seat top fixedly connected with valve clack, the valve clack on be provided with the uide bushing, the uide bushing outward through screw thread fixedly connected with bellows, the utility model discloses a bellows and uide bushing screw thread connect soon, can guarantee bellows and uide bushing concentricity, be provided with soft seal gasket in the threaded connection face, the sealed effect of relief valve is greatly improved, the top that the bellows is exposed to the uide bushing upper end, then pass through argon arc welding, make the integration of bellows and uide bushing, adopt argon arc welding, the direction is warp when having avoided the welding, welding valve rod up stroke overlength problem has been avoided, the bellows upper end is exposed, the face of weld is little, it is little to be heated, non -deformation, reach fine concentricity and result of use.
Description
Technical field
This utility model belongs to the technical field of relief valve, is specifically related to a kind of corrugated tube guiding integration and reduces back pressure formula chlor-alkali relief valve。
Background technology
Relief valve is that opening and closing element is subject under External Force Acting to be in normally off, when the pressure medium superelevation gauge definite value in equipment or pipeline is, by preventing pressure medium in pipeline or equipment from exceeding the Special valve of setting to discharge medium outside system。
Relief valve majority in the market is that valve body is directly directed to mechanism, install the relief valve after corrugated tube additional and be typically all directly by bellows-welding use in guiding or on valve rod, but be welded to lead and upper require that welding concentricity is higher, and if weld after successfully owing to sintering warpage or misoperation cause with one heart, lead and will scrap。It is welded on valve rod and requires that corrugated tube stroke is higher。
Utility model content
The purpose of this utility model is to solve the problems referred to above, one is provided to adopt corrugated tube and fairlead integral structure by corrugated tube and fairlead either directly through threaded, soft seal pad it is provided with in thread joint face, the upper end of fairlead is run through the top mesopore of corrugated tube and is spilt a part, and the corrugated tube guiding integration that argon arc welding welds together reduces back pressure formula chlor-alkali relief valve。
In order to solve the problems referred to above, this utility model be the technical scheme is that
A kind of corrugated tube guiding integration reduces back pressure formula chlor-alkali relief valve, including valve body, valve seat, valve rod and valve gap, described valve seat is arranged on the bottom of valve body and is connected with pressure entrance and outlet, described valve gap is arranged on the top of valve body, described valve seat top is fixedly connected with flap, described flap is provided with fairlead, it is threadably secured outside described fairlead and is connected to corrugated tube, the excircle of described fairlead bottom is provided with external screw thread, the inner periphery of described corrugated tube bottom is provided with the female thread matched, it is provided with soft seal packing ring between described fairlead bottom and the thread joint face of corrugated tube bottom, the top of described corrugated tube is provided with a hole mated with fairlead, the upper end coupling of described fairlead is through the top of corrugated tube, argon arc welding between described fairlead upper end and corrugated tube top, described valve rod is applied in valve gap and extends in fairlead, it is provided with pad between described bold and vigorous stricture of vagina pipe and valve body upper end。
It is provided with sealing ring between bottom described valve seat top and flap。
Also threaded on described valve gap inwall have the clamp nut being sleeved on valve rod, and described clamp nut passes the outside of the part of valve gap and is provided with locking nut, and described locking nut is positioned at the top of valve gap, is additionally provided with spring assembly between clamp nut and valve rod。
Described spring assembly contains holddown spring and is separately mounted to upper spring seat and the lower spring cup of holddown spring upper and lower end, and described upper spring seat is arranged on clamp nut by bearing, and described lower spring cup fixed cover is located on valve rod。
Gain effect of the present utility model is:
1, corrugated tube of the present utility model and fairlead screw thread spin, it is ensured that corrugated tube and fairlead concentricity, be provided with soft seal pad, substantially increase the sealing effectiveness of relief valve in thread joint face。
2, the top of corrugated tube is exposed in fairlead upper end of the present utility model, then passes through argon arc welding, make corrugated tube and fairlead integration, adopt argon arc welding, it is to avoid guiding deformation during welding, it is to avoid the welding long problem of valve rod up stroke。
3, corrugated tube upper end of the present utility model is exposed, and solder side is little, is heated little, is unlikely to deform, and reaches good concentricity and result of use。
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of corrugated tube guiding integration of this utility model reduces back pressure formula chlor-alkali relief valve。
Fig. 2 is the structural representation that a kind of corrugated tube guiding integration of this utility model reduces the corrugated tube of back pressure formula chlor-alkali relief valve。
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail。
Referring to sequence number in Fig. 1 and Fig. 2, figure: 1 be valve body, 2 be valve seat, 3 be valve rod, 4 be valve gap, 5 be flap, 6 be fairlead, 7 be corrugated tube, 8 be soft seal packing ring, 9 be hole, 10 be argon arc welding, 11 be sealing ring, 12 be clamp nut, 13 be locking nut, 14 be holddown spring, 15 be upper spring seat, 16 for lower spring cup and 17 for pad。
The guiding integration of this utility model one corrugated tube reduces back pressure formula chlor-alkali relief valve, including valve body 1, valve seat 2, valve rod 3 and valve gap 4, described valve seat 2 is arranged on the bottom of valve body 1 and is connected with pressure entrance and outlet, described valve gap 4 is arranged on the top of valve body 1, described valve seat 2 top is fixedly connected with flap 5, described flap 5 is provided with fairlead 6, it is threadably secured outside described fairlead 6 and is connected to corrugated tube 7, the excircle of described fairlead 6 bottom is provided with external screw thread, the inner periphery of described corrugated tube 7 bottom is provided with the female thread matched, it is provided with soft seal packing ring 8 between the thread joint face of described fairlead 6 bottom and corrugated tube 7 bottom, the top of described corrugated tube 7 is provided with the hole 9 mated of and fairlead 6, the upper end coupling of described fairlead 6 is through the top of corrugated tube 7, argon arc welding 10 between described fairlead 6 upper end and corrugated tube 7 top, described valve rod 3 is applied in valve gap 4 and extends in fairlead 6, it is provided with pad between described corrugated tube 7 and valve body 1 upper end。It is provided with sealing ring 11 between bottom described valve seat 2 top and flap 5。
Also threaded on described valve gap 4 inwall have the clamp nut 12 being sleeved on valve rod, the outside of the part that described clamp nut 12 passes valve gap 4 is provided with locking nut 13, described locking nut 13 is positioned at above the 4 of valve gap, is additionally provided with spring assembly between clamp nut 12 and valve rod 3。
Described spring assembly contains holddown spring 14 and is separately mounted to upper spring seat 15 and the lower spring cup 16 of holddown spring upper and lower end, and described upper spring seat 15 is arranged on clamp nut 12 by bearing, and described lower spring cup 16 fixed cover is located on valve rod 3。
Corrugated tube 7 of the present utility model and fairlead 6 screw thread spin, it is ensured that corrugated tube 7 and fairlead 6 concentricity, be provided with soft seal pad 8, substantially increase the sealing effectiveness of relief valve in thread joint face；The top of corrugated tube 7 is exposed in fairlead 6 upper end, then passes through argon arc welding 10, make corrugated tube 7 and fairlead 6 integration, adopt argon arc welding 10, it is to avoid guiding deformation during welding, it is to avoid the welding valve rod 3 long problem of up stroke；Corrugated tube 7 upper end is exposed, and solder side is little, is heated little, is unlikely to deform, and reaches good concentricity and result of use。
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described。Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within claimed scope of the present utility model。The protection domain that this utility model requires is defined by appending claims and equivalent thereof。
Claims (4)
1. a corrugated tube guiding integration reduces back pressure formula chlor-alkali relief valve, it is characterized in that: include valve body, valve seat, valve rod and valve gap, described valve seat is arranged on the bottom of valve body and is connected with pressure entrance and outlet, described valve gap is arranged on the top of valve body, described valve seat top is fixedly connected with flap, described flap is provided with fairlead, it is threadably secured outside described fairlead and is connected to corrugated tube, the excircle of described fairlead bottom is provided with external screw thread, the inner periphery of described corrugated tube bottom is provided with the female thread matched, it is provided with soft seal packing ring between described fairlead bottom and the thread joint face of corrugated tube bottom, the top of described corrugated tube is provided with a hole mated with fairlead, the upper end coupling of described fairlead is through the top of corrugated tube, argon arc welding between described fairlead upper end and corrugated tube top, described valve rod is applied in valve gap and extends in fairlead, laminating is sealed between described corrugated tube and valve body upper end, it is provided with pad between described corrugated tube and valve body upper end。
2. a kind of corrugated tube guiding integration according to claim 1 reduces back pressure formula chlor-alkali relief valve, it is characterised in that: it is provided with sealing ring between bottom described valve seat top and flap。
3. a kind of corrugated tube guiding integration according to claim 1 reduces back pressure formula chlor-alkali relief valve, it is characterized in that: also threaded on described valve gap inwall have the clamp nut being sleeved on valve rod, the outside of the part that described clamp nut passes valve gap is provided with locking nut, described locking nut is positioned at the top of valve gap, is additionally provided with spring assembly between clamp nut and valve rod。
4. a kind of corrugated tube guiding integration according to claim 3 reduces back pressure formula chlor-alkali relief valve, it is characterized in that: described spring assembly contains holddown spring and is separately mounted to upper spring seat and the lower spring cup of holddown spring upper and lower end, described upper spring seat is arranged on clamp nut by bearing, and described lower spring cup fixed cover is located on valve rod。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123147.6U CN205331526U (en) | 2015-12-31 | 2015-12-31 | Bellows direction integration reduces back pressure formula relief valve for chlor -alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123147.6U CN205331526U (en) | 2015-12-31 | 2015-12-31 | Bellows direction integration reduces back pressure formula relief valve for chlor -alkali |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331526U true CN205331526U (en) | 2016-06-22 |
Family
ID=56313554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521123147.6U Active CN205331526U (en) | 2015-12-31 | 2015-12-31 | Bellows direction integration reduces back pressure formula relief valve for chlor -alkali |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707881A (en) * | 2018-12-17 | 2019-05-03 | 陕西科技大学 | A kind of spring spool |
-
2015
- 2015-12-31 CN CN201521123147.6U patent/CN205331526U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707881A (en) * | 2018-12-17 | 2019-05-03 | 陕西科技大学 | A kind of spring spool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205331526U (en) | Bellows direction integration reduces back pressure formula relief valve for chlor -alkali | |
| CN106122502A (en) | Bellows stop valve special for chlorine | |
| CN203500596U (en) | Hard-and-soft sealing structure of valve flap of spring type safety valve | |
| CN205937894U (en) | Corrugated pipe stop valve for chlorine | |
| CN205654918U (en) | Valve body separately welds angie type non return door for nuclear island | |
| CN103133704B (en) | Floating type seal mouse cage valve | |
| CN205013699U (en) | Nuclear safety level needle type valve | |
| CN205244677U (en) | It gas pipeline ripple connector | |
| CN211901693U (en) | Swing check valve | |
| CN206846126U (en) | A kind of connector of gas pipeline | |
| CN208967140U (en) | Safety valve | |
| CN206708473U (en) | A kind of deadweight safety valve | |
| CN104405888B (en) | Compensation sealing pressure-reducing valve | |
| CN205504000U (en) | Feed -regulating valve | |
| CN204358146U (en) | With the direct-exhausting type solenoid blowout valve of flow guide device | |
| CN207569249U (en) | A kind of high steam pipeline copper valve deck | |
| CN214946423U (en) | Pressure reducing device | |
| CN206786120U (en) | A kind of gas valve | |
| CN210978562U (en) | Wrapping bypass valve combined structure | |
| CN209638577U (en) | A kind of double sealing structure of screwed pipe joint | |
| CN105156693A (en) | Nuclear safety needle valve | |
| CN213271181U (en) | Safety valve | |
| CN206130125U (en) | Flange gasket seal face does not have eccentric butterfly valve of interrupt | |
| CN211779102U (en) | Top-mounted inclined-plane ball valve | |
| CN216143188U (en) | High-pressure throttle valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |