CN211039823U - Bellows balance type spring safety valve - Google Patents
Bellows balance type spring safety valve Download PDFInfo
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- CN211039823U CN211039823U CN201921350216.5U CN201921350216U CN211039823U CN 211039823 U CN211039823 U CN 211039823U CN 201921350216 U CN201921350216 U CN 201921350216U CN 211039823 U CN211039823 U CN 211039823U
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Abstract
A bellows balance type spring safety valve. The problem that current bellows damages easily, life hangs down is mainly solved. The method is characterized in that: the corrugated pipe comprises a pipe body, an upper mounting seat and a lower mounting seat, wherein the upper mounting seat and the lower mounting seat are arranged at the upper end and the lower end of the pipe body; the lower mounting seat is fixedly provided with a protecting sleeve outside, and the protecting sleeve extends upwards to the upper mounting seat and is matched with the upper mounting seat in a sealing and sliding manner. Its advantage lies in that the mount pad external fixation is provided with the one deck lag under the bellows, and it can float from top to bottom along with the compression of bellows and reset, can enough satisfy the action requirement of bellows itself, can play a protective effect to the body of bellows moreover, avoids it to receive the medium direct scour damage, and life is higher.
Description
Technical Field
The utility model relates to a relief valve, concretely relates to bellows balanced type spring relief valve.
Background
The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium pressure in the pipeline or the equipment is prevented from exceeding the specified value by discharging the medium to the outside of the system, belongs to the automatic valve class, is mainly used for boilers, pressure vessels and pipelines, controls the pressure to be not more than the specified value, and plays an important role in protecting personal safety and equipment operation.
The corrugated pipe balanced type safety valve is characterized in that a corrugated pipe is additionally arranged between a valve clack and a guide sleeve of the safety valve, the corrugated pipe can eliminate the influence of back pressure fluctuation on the performance of the valve, and can also protect springs and other internal parts from being corroded by a medium.
When the safety valve is opened, because the outlet has pressure, the medium can not be rapidly discharged, the medium can have a recoil effect on the corrugated pipe, particularly in the corrugated pipe safety valve with high setting pressure and high back pressure, the medium can apply a large counterforce to the corrugated pipe, meanwhile, the thickness of the pipe body of the corrugated pipe is not too thick in order to meet the requirements of normal assembly and normal elastic compression and resetting of the corrugated pipe, the anti-scouring capability of the pipe body of the corrugated pipe is weaker, the corrugated pipe is easy to damage and lose efficacy, and the service life is short.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a bellows balanced type spring relief valve mainly solves the problem that current bellows damages easily, life is low.
The utility model discloses the technical scheme who adopts: a corrugated pipe balanced type spring safety valve comprises a valve body, a valve seat, a valve cover, a guide sleeve, a recoil disc, a valve clack, a valve rod and a spring, wherein the valve seat is installed at the inlet end of the valve body; a corrugated pipe is arranged between the guide sleeve and the recoil disc and comprises a pipe body, an upper mounting seat and a lower mounting seat, wherein the upper mounting seat and the lower mounting seat are arranged at the upper end and the lower end of the pipe body; the lower mounting seat is fixedly provided with a protecting sleeve outside, and the protecting sleeve extends upwards to the upper mounting seat and is matched with the upper mounting seat in a sealing and sliding manner.
The corrugated pipe adopts double-layer corrugated pipe, the pipe body comprises an inner layer pipe and an outer layer pipe, and the thickness of the inner layer pipe and the thickness of the outer layer pipe are not more than 0.15 mm.
An upper annular mounting groove is formed in the lower end face of the guide sleeve, an upper annular mounting boss is correspondingly formed in the upper end face of the upper mounting seat, and the upper mounting seat is embedded into the upper annular mounting groove through the upper annular mounting boss and is in limit fit with the guide sleeve;
the upper end surface of the recoil disc is provided with a lower annular mounting groove, the lower end surface of the lower mounting seat is correspondingly provided with a lower annular mounting boss, and the lower mounting seat is embedded into the lower annular mounting groove through the lower annular mounting boss and is in limit fit with the recoil disc.
The side wall of the valve cover is provided with an exhaust hole.
The upper portion of the valve seat is provided with an adjusting ring, the adjusting ring is in threaded fit with the valve seat, and the valve body is provided with a positioning screw for fixing the adjusting ring.
The valve body is connected with the valve seat in a threaded fit mode.
The utility model has the advantages that: scheme more than adopting, the mount pad external fixation is provided with the one deck lag under the bellows, and it can float from top to bottom along with the compression of bellows and reseing, can enough satisfy the action requirement of bellows itself, can play a protecting effect to the body of bellows moreover, avoids it to receive the medium direct scour damage, and life is higher.
Drawings
Fig. 1 is a schematic structural diagram of a bellows balanced spring safety valve according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the bellows according to the embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings:
as shown in the figure, the bellows balanced type spring safety valve comprises a valve body 1, a valve seat 2, a valve cover 3, a guide sleeve 4, a recoil disc 5, a valve clack 6, a valve rod 7 and a spring 8.
The valve seat 2 is installed at the inlet end of the valve body 1 in a threaded fit connection mode, the guide sleeve 4 is T-shaped and is arranged between the valve body 1 and the valve cover 3, and a guide groove which is longitudinally communicated is formed in the center of the guide sleeve.
The recoil disc 5 is inserted into the guide groove of the guide sleeve 4 and is matched with the guide sleeve 4 in a vertically sliding manner, and the valve clack 6 is arranged on the lower end face of the recoil disc 5 and corresponds to the valve seat 2.
The valve rod 7 is arranged in the valve cover 3, the lower end of the valve rod extends into the guide groove of the guide sleeve 4 to be connected with the recoil disc 5, the spring 8 is installed on the valve rod 7 and can drive the valve rod 7 to move downwards, the valve rod 7 can drive the recoil disc 5 to move downwards, and the recoil disc 5 drives the valve clack 6 to move downwards to keep sealing with the valve seat 2.
The upper portion of the valve seat 2 is further provided with an adjusting ring 10, the adjusting ring 10 is in threaded fit with the valve seat 2, and the valve body is provided with a positioning screw 11 for fixing the adjusting ring 10 and used for adjusting flow.
Under normal conditions, the recoil disc 5 is under the effect of spring 8 for valve clack 6 and disk seat 2 keep sealed, and when equipment or pipeline go up pressure when too big, its medium pressure will promote valve clack 6, recoil disc 5 and overcome spring 8's elastic force and upwards move, open the relief valve and carry out pressure release, finishes when pressure release, then resets sealedly under spring 8's effect, thereby realizes safety protection's effect.
A corrugated pipe 9 is further arranged between the guide sleeve 4 and the recoil disc 5, the corrugated pipe 9 comprises a pipe body 91, and an upper mounting seat 92 and a lower mounting seat 93 which are arranged at the upper end and the lower end of the pipe body 91, the upper mounting seat 92 is connected with the guide sleeve 4, and the lower mounting seat 93 is connected with the recoil disc 5; a protecting sleeve 94 is fixedly mounted outside the lower mounting seat 93, and the protecting sleeve 94 extends upwards to the upper mounting seat 92 and is in sealing sliding fit with the upper mounting seat 92.
Bellows 9 can eliminate the influence of valve body 1 outlet side backpressure to relief valve action performance, the operation of safe and reliable more has been guaranteed to the relief valve, lower mount pad 93 external fixation at bellows 9 sets up one deck lag 94, this lag 94 can be along with the compression of bellows and reset along last mount pad 92 fluctuation, can enough satisfy the action requirement of bellows 9 itself, and can play a protecting effect to body 91 of bellows 9, avoid it to receive the medium direct scouring damage, and service life is higher.
The corrugated pipe 9 is a double-layer corrugated pipe, the pipe body 91 comprises an inner layer pipe 911 and an outer layer pipe 912, the thickness of the inner layer pipe 911 and the thickness of the outer layer pipe 912 are 0.15mm, the corrugated pipe with the two-layer structure acts more stably, and the service life of the corrugated pipe can be further prolonged.
An upper annular mounting groove 41 is formed on the lower end surface of the guide sleeve 4, an upper annular mounting boss 921 is correspondingly formed on the upper end surface of the upper mounting seat 92, and the upper mounting seat 92 is embedded into the upper annular mounting groove 41 through the upper annular mounting boss 921 to be in limit fit with the guide sleeve 4; the upper end surface of the recoil disc 5 is provided with a lower annular mounting groove 51, the lower end surface of the lower mounting seat 93 is correspondingly provided with a lower annular mounting boss 931, the lower mounting seat 93 is embedded into the lower annular mounting groove 51 through the lower annular mounting boss 931 to be in limit fit with the recoil disc 5, positioning and mounting can be achieved, assembling and assembling are easier, the structure is stable, the centrality is maintained, deviation caused by medium scouring is avoided, and the service life of the recoil disc is further guaranteed.
The side wall of the valve cover 3 is provided with an exhaust hole 31, and the pressure balance inside the valve cover 3 is realized through the exhaust hole 31, so that the problem of leakage caused by rupture of the corrugated pipe due to too large counter pressure is avoided.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.
Claims (5)
1. A corrugated pipe balanced type spring safety valve comprises a valve body (1), a valve seat (2), a valve cover (3), a guide sleeve (4), a recoil disc (5), a valve flap (6), a valve rod (7) and a spring (8), wherein the valve seat (2) is installed at the inlet end of the valve body (1), the guide sleeve (4) is arranged between the valve body (1) and the valve cover (3), the recoil disc (5) and the guide sleeve (4) are in up-and-down sliding fit, the valve flap (6) is installed below the recoil disc (5) and corresponds to the valve seat (2), the valve rod (7) is arranged in the valve cover (3), the lower end of the valve rod (7) is connected with the recoil disc (5), and the spring (8) is installed on the valve rod (7) and can drive the recoil disc (5) to downwards to enable the valve flap (6) to be sealed; the method is characterized in that: a corrugated pipe (9) is arranged between the guide sleeve (4) and the recoil disc (5), the corrugated pipe (9) comprises a pipe body (91) and an upper mounting seat (92) and a lower mounting seat (93) which are arranged at the upper end and the lower end of the pipe body (91), the upper mounting seat (92) is connected with the guide sleeve (4), and the lower mounting seat (93) is connected with the recoil disc (5); a protecting sleeve (94) is fixedly arranged outside the lower mounting seat (93), and the protecting sleeve (94) extends upwards to the upper mounting seat (92) and is in sealing sliding fit with the upper mounting seat (92);
the side wall of the valve cover (3) is provided with an exhaust hole (31).
2. The bellows balanced spring relief valve of claim 1, wherein: the corrugated pipe (9) adopts a double-layer corrugated pipe, the pipe body (91) comprises an inner layer pipe (911) and an outer layer pipe (912), and the thickness of the inner layer pipe (911) and the thickness of the outer layer pipe (912) are not more than 0.15 mm.
3. The bellows balanced spring relief valve of claim 1, wherein: an upper annular mounting groove (41) is formed in the lower end face of the guide sleeve (4), an upper annular mounting boss (921) is correspondingly formed in the upper end face of the upper mounting seat (92), and the upper mounting seat (92) is embedded into the upper annular mounting groove (41) through the upper annular mounting boss (921) and is in limit fit with the guide sleeve (4); the upper end surface of the recoil disc (5) is provided with a lower annular mounting groove (51), a lower annular mounting boss (931) is correspondingly formed at the lower end surface of the lower mounting seat (93), and the lower mounting seat (93) is embedded into the lower annular mounting groove (51) through the lower annular mounting boss (931) and is in limit fit with the recoil disc (5).
4. The bellows balanced spring relief valve of claim 1, wherein: the adjustable valve is characterized in that an adjusting ring (10) is arranged on the upper portion of the valve seat (2), the adjusting ring (10) is in threaded fit with the valve seat (2), and a positioning screw (11) for fixing the adjusting ring (10) is arranged on the valve body.
5. The bellows balanced spring relief valve of claim 1, wherein: the valve body (1) is connected with the valve seat (2) in a threaded fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350216.5U CN211039823U (en) | 2019-08-20 | 2019-08-20 | Bellows balance type spring safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350216.5U CN211039823U (en) | 2019-08-20 | 2019-08-20 | Bellows balance type spring safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039823U true CN211039823U (en) | 2020-07-17 |
Family
ID=71569518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921350216.5U Active CN211039823U (en) | 2019-08-20 | 2019-08-20 | Bellows balance type spring safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039823U (en) |
-
2019
- 2019-08-20 CN CN201921350216.5U patent/CN211039823U/en active Active
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