CN213361225U - Corrosion-resistant pressure regulating valve - Google Patents
Corrosion-resistant pressure regulating valve Download PDFInfo
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- CN213361225U CN213361225U CN202022318445.8U CN202022318445U CN213361225U CN 213361225 U CN213361225 U CN 213361225U CN 202022318445 U CN202022318445 U CN 202022318445U CN 213361225 U CN213361225 U CN 213361225U
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Abstract
The utility model discloses a corrosion-resistant pressure regulating valve, including the disk seat, the diaphragm, valve gap and adjustment mechanism, the top of disk seat is equipped with annular diaphragm groove, annular diaphragm inslot is arranged in to the diaphragm, the valve gap is fixed in the top of disk seat, the top of valve gap is embedded to have lead screw nut, lead screw and lead screw nut swing joint, adjustment mechanism arranges in the valve gap, adjustment mechanism includes adjusting part, adjusting part is through revolving ball and screw connection, adjusting part passes through the balance ball and is connected with the diaphragm briquetting, the diaphragm briquetting is connected with the diaphragm, the material of disk seat and valve gap is plastics or stainless steel material. The utility model discloses pre-buried screw nut in mould when the valve gap is moulded plastics, the bolt of disk seat bottom is done embeddedly to the anticorrosive cap of installation, pressure regulating valve adopt high strength macromolecular material to make, and outward appearance and external connection spare are plastic, both improve anticorrosive ability and alleviate valve body weight, and safe pressure release, backpressure steady voltage function can be realized to this governing valve.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a corrosion-resistant pressure regulating valve.
Background
The pressure regulating valve is a control valve, also can be used as a stop valve in a special form, and its opening and closing member is a diaphragm made of soft material, and can separate the valve body inner cavity from valve cover inner cavity and pressure regulating component, so that it can be extensively used in various fields, including gas, water containing granules and impurity and acid-base chemicals. The existing pressure regulating valve, especially applied in the environment containing corrosiveness, has the following defects:
1. the flange type through hole locking structure and the metal locking part of the external valve body and the valve cover are exposed, so that the valve is not strong in corrosion resistance and not attractive.
2. The metal valve body and the valve cover are heavy, and the requirement on pipeline installation is high.
3. The adjusting mechanism of the existing plastic shell is small, and the rigid design of the spring has influence on the stability performance of the plastic shell in long-term use.
4. The adjusting precision is poor, and the valve is opened with the stuck phenomenon.
5. The flow channel of the existing pressure regulating valve can not be externally connected with a pressure display or a pressure sensor and needs to be regulated by a pressure display unit on the system.
The above disadvantages need to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a corrosion-resistant pressure regulating valve.
The utility model discloses technical scheme as follows:
a corrosion-resistant pressure regulating valve comprises a valve seat, a diaphragm, a regulating mechanism and a valve cover,
the top of the valve seat is provided with an annular diaphragm groove, the diaphragm is arranged in the annular diaphragm groove, the side surface of the valve seat is symmetrically provided with reserved ports of a pressure external module, the reserved ports of the pressure external module are connected with a pressure gauge or a pressure sensor,
the valve cover is fixed above the valve seat, a screw nut is embedded in the top of the valve cover, a screw passes through a positioning nut and is movably connected with the screw nut, a screw protective sleeve is sleeved outside the screw,
the adjusting mechanism is arranged in the valve cover and comprises an adjusting component, a diaphragm pressing block, a rotating ball and a balance ball, the adjusting component is connected with the lead screw through the rotating ball, the adjusting component is connected with the diaphragm pressing block through the balance ball, the diaphragm pressing block is connected with the diaphragm,
the valve seat and the valve cover are made of plastic or stainless steel.
Furthermore, the reserved opening of the pressure external module is a threaded interface.
According to above-mentioned scheme the utility model discloses, its characterized in that, the material of disk seat is polyvinyl chloride (PVC), polypropylene (PP) or polyvinylidene fluoride (PVDF).
According to the above scheme the utility model discloses, its characterized in that, the material of valve gap adds glass fiber (PP + GF) or polyphenylene sulfide adds glass fiber (PPS + GF).
According to the above scheme the utility model discloses, a serial communication port, annular diaphragm inslot evenly is equipped with a plurality of bolt through-holes, adjacent two be equipped with independent inner chamber between the bolt through-hole, be equipped with on the diaphragm with the corresponding diaphragm through-hole in bolt through-hole position, the bolt passes in proper order the bolt through-hole reaches behind the diaphragm through-hole with the valve gap is fixed, will the diaphragm is fixed in the valve gap with between the disk seat.
Furthermore, an anti-corrosion cap is sleeved on a nut of the bolt.
According to above scheme the utility model discloses, a serial communication port, the side of disk seat is the symmetry still and is equipped with the disk seat port, the disk seat port includes first disk seat port and second disk seat port, is located the center of annular diaphragm groove is equipped with the cylinder passageway, first disk seat port with cylinder passageway intercommunication, the periphery of cylinder passageway is equipped with the disk seat chamber, second disk seat port with disk seat chamber intercommunication.
Furthermore, a sealing ring, a locking nut and a connecting pipe flanging are connected to the port of the valve seat, the sealing ring is embedded in the port of the valve seat, and the locking nut is sleeved with the connecting pipe flanging and is in threaded connection with the port of the valve seat.
The utility model is characterized in that the adjusting component comprises an upper spring base, a spring and a lower spring base, one end of the spring is sleeved on the upper spring base, the other end of the spring is sleeved on the lower spring base,
furthermore, a rotating ball seat is arranged at the top center of the upper base of the spring, and a rotating ball is arranged in the rotating ball seat.
Furthermore, the bottom of the diaphragm pressing block is provided with a balance ball seat, and the balance ball is arranged in the balance ball seat.
Furthermore, the upper part of the diaphragm pressing block is embedded into the valve cover, and the lower part of the diaphragm pressing block is pressed on the diaphragm.
According to the above scheme the utility model discloses, its beneficial effect lies in:
1. the utility model discloses pre-buried lead screw nut in mould when the valve gap is moulded plastics, the bolt of disk seat bottom is done embeddedly to the anticorrosive cap of installation, pressure regulating valve adopt high strength macromolecular material to make, and outward appearance and external connection spare are plastic, both promote corrosion resisting property and alleviate valve body weight, can realize safe pressure release, backpressure steady voltage function.
2. The spring is fixed by using the directional base, the length and the wire diameter of the spring are increased, the rigidity of the spring is improved, and the precision and the stability of the adjusting mechanism are guaranteed.
3. A balance ball is added at the joint of the diaphragm pressing block and the end part of the spring, so that the balance of 360 degrees of downward pressure of the diaphragm pressing block is ensured.
4. The pressure external module reserved opening on the valve seat can be provided with a pressure gauge or a pressure sensor according to requirements.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the valve seat structure of the present invention;
fig. 3 is a schematic top view of the present invention;
FIG. 4 is a sectional view taken in the direction H-H in FIG. 3;
FIG. 5 is a cross-sectional view taken along the line J-J in FIG. 3;
fig. 6 is a cross-sectional view taken along the direction K-K in fig. 3.
In the figures, the various reference numbers:
1. a valve seat, 11, a reserved opening of a pressure external module, 12, a cylindrical channel, 13, a first valve seat port, 131, an annular groove, 132, an annular bulge, 14, a second valve seat port, 15, an annular diaphragm groove, 151, a bolt through hole, 152, an inner cavity, 16, a valve seat cavity,
2. a diaphragm, 21, a diaphragm through hole,
3. an adjusting mechanism 31, an adjusting component 311, a spring upper base 3111, a rotating ball seat 312, a spring 313, a spring lower base 32, a diaphragm pressing block 321, a balance ball seat 33, a rotating ball 34 and a balance ball,
4. a valve cover 41, a screw nut,
5. a lead screw is arranged on the guide rod,
6. a positioning nut is arranged on the base plate,
7. a lead screw protective sleeve is arranged on the lead screw,
8. the bolt is arranged on the base plate and is provided with a bolt,
91. and the sealing ring 92, the locking nut 93 and the connecting pipe flanging.
Detailed Description
The invention is further described with reference to the following figures and embodiments:
as shown in fig. 1 to 6, a corrosion-resistant pressure regulating valve includes a valve seat 1, a diaphragm 2, a regulating mechanism 3, and a bonnet 4.
The top of the valve seat 1 is provided with an annular diaphragm groove 15, and the diaphragm 2 is arranged in the annular diaphragm groove 15. The side symmetry of disk seat 1 is equipped with the external module of pressure and reserves mouthful 11, and the external module of pressure reserves mouthful 11 and connects manometer or pressure sensor, and the external module of pressure reserves mouthful 11 position and is close to first disk seat port 13, and the external module of pressure reserves mouthful 11 and is the hickey, and this hickey can dispose manometer or pressure sensor according to the demand.
The side of the valve seat 1 is also symmetrically provided with valve seat ports, the connecting line of the valve seat ports is perpendicular to the connecting line of the pressure external module reserved port 11, the valve seat ports comprise a first valve seat port 13 and a second valve seat port 14, a cylindrical channel 12 is arranged in the center of the annular diaphragm groove 15, the first valve seat port 13 is communicated with the cylindrical channel 12, a valve seat cavity 16 is arranged on the periphery of the cylindrical channel 12, and the second valve seat port 14 is communicated with the valve seat cavity 16.
Further, the valve seat port is connected with a sealing ring 91, a locking nut 92 and a connecting pipe flanging 93, the sealing ring 91 is embedded in the valve seat port, and the locking nut 92 is sleeved with the connecting pipe flanging 93 and is in threaded connection with the valve seat port. The specific connection mode is as follows: an annular groove 131 extends inwards from the front end of the valve seat port, an annular bulge 132 is arranged in the middle of the annular groove 131, the sealing ring 91 is arranged in the annular groove 131, and the inner wall of the sealing ring 91 is abutted to the outer wall of the annular bulge 132; the connecting pipe flanging 93 penetrates through the middle cavity of the locking nut 92, so that the head of the connecting pipe flanging 93 is clamped on the inner edge of the tail of the locking nut 92, and then the threaded part of the locking nut 92 is in threaded locking connection with the threaded part of the valve seat port, so that the connecting pipe flanging 93 is fixed on the valve seat port.
Preferably, an independent inner cavity 152 is further provided between two adjacent bolt through holes 151.
Preferably, the nut of the bolt 8 is sleeved with an anti-corrosion cap. So that parts exposed outside the regulating valve have anti-corrosion capability, thereby further enhancing the anti-corrosion property of the pressure regulating valve.
The adjusting mechanism 3 is arranged in the valve cover 4 and comprises an adjusting component 31, a diaphragm pressing block 32, a rotating ball 33 and a balance ball 34, the adjusting component 31 is connected with the lead screw 5 through the rotating ball 33, the adjusting component 31 is connected with the diaphragm pressing block 32 through the balance ball 34, and the diaphragm pressing block 32 is connected with the diaphragm 2. The adjusting assembly 31 includes an upper spring base 311, a spring 312 and a lower spring base 313, wherein one end of the spring 312 is sleeved on the upper spring base 311, and the other end of the spring 312 is sleeved on the lower spring base 313. The spring 312 is fixed by using a directional base, the length and the wire diameter of the spring 312 are increased, the rigidity of the spring 312 is improved, and the precision and the stability of the adjusting mechanism 3 in a short stroke are ensured.
Preferably, the upper portion of the diaphragm pressing piece 32 is embedded in the valve cover 4, and the lower portion of the diaphragm pressing piece 32 is press-contacted to the middle portion of the diaphragm 2.
The specific connection mode of the adjusting component 31, the rotating ball 33 and the lead screw 5 is as follows: the top center of the spring upper base 311 is provided with a rotating ball seat 3111, the rotating ball seat 3111 is provided with a rotating ball 33 therein, and the lead screw 5 passes through the lead screw nut 41 and is pressed with the rotating ball 33. The base and the lead screw pass through the ball contact of rotating on the spring, reduce the moment of torsion.
The specific connection mode of the adjusting component 31, the diaphragm pressing block 32 and the balance ball 34 is as follows: the lower spring base 313 is arranged in the diaphragm pressing block 32, a balance ball convex groove is arranged at the bottom of the lower spring base 313, a balance ball seat 321 which is matched with the balance ball 34 in size is arranged at the center of the lower part of the diaphragm pressing block 32, and the balance ball 34 is arranged between the balance ball convex groove and the balance ball seat 321. The adjusting precision of the pressure adjusting valve mainly depends on the balance of the diaphragm pressing block 32, and a balance ball 34 is added at the connecting part of the diaphragm pressing block 32 and the bottom of the lower spring base 313 to ensure that the pressure under the diaphragm pressing block 32 is balanced by 360 degrees.
In the present invention, the valve seat 1 and the valve cover 4 are made of plastic or stainless steel. The valve seat 1 may be made of polyvinyl chloride (PVC), polypropylene (PP), or polyvinylidene fluoride (PVDF). The valve cover 4 can be made of polypropylene and glass fiber (PP + GF) or polyphenylene sulfide and glass fiber (PPS + GF). Adopt high strength macromolecular material to make pressure regulating valve light in weight on the whole, be convenient for installation and maintenance.
The utility model discloses an installation mode does:
the diaphragm 2 is pressed into the annular diaphragm groove 15 of the valve seat 1, the diaphragm pressing block 32 is placed in the middle of the diaphragm 2, the balance ball 34 is placed into the balance ball seat 321 of the diaphragm pressing block 32, the lower spring base 313 is placed into the diaphragm pressing block 32, one end of the spring 312 is sleeved into the lower spring base 313, the other end of the spring 312 is sleeved into the upper spring base 311, the rotary ball 33 is placed into the rotary ball seat 3111 of the upper spring base 311, the valve cover 4 is aligned with the bolt through hole 151 of the valve seat 1 and covers the upper portion of the valve seat 1, six bolts 8 are assembled and locked, and an anti-corrosion cap is sleeved at the nut of the screw cap. The sealing ring 91 is sleeved into the valve seat port, the connecting pipe flanging 93 is arranged, and the locking nut 92 is sleeved.
After the main body is assembled, the positioning nut 6 is screwed into the lead screw 5, the lead screw 5 is screwed into the lead screw nut 41 on the top of the valve cover 4, and finally the lead screw is arranged into the lead screw protective sleeve 7.
The utility model discloses a theory of operation does:
when high pressure and small flow are needed, the head of the screw rod 5 is rotated, the screw rod 5 moves downwards, at the moment, the bottom of the screw rod 5 continuously presses the rotating ball 33 downwards to drive the upper spring base 311 sleeved with the spring 312 to press the spring 312 downwards, the spring 312 is compressed, the lower spring base 313 continuously presses the diaphragm pressing block 32 due to the pressure of the spring 312, the diaphragm pressing block 32 presses the diaphragm 2, the space between the diaphragm 2 and the annular diaphragm groove 15 is sealed, no gas flows, and finally the pressure regulating valve achieves the purpose of small flow. On the contrary, when low pressure and large flow are needed, the head of the screw rod 5 is loosened, so that gas flows between the diaphragm 2 and the annular diaphragm groove 15, and the purpose of large flow of the pressure regulating valve is achieved.
When pressure presetting is carried out on the pressure regulating valve, a pressure gauge or a sensor is installed at a reserved opening 11 of the pressure external module, the screw rod protective sleeve 7 is taken off, the head of the screw rod 5 is rotated by a wrench to open required pressure, the pressure is loosened to be small pressure, the screw is screwed to be large pressure, the regulating valve is automatically started to jump and open when the required pressure is met, and setting is completed.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. A corrosion-resistant pressure regulating valve is characterized by comprising a valve seat, a diaphragm, a valve cover and a regulating mechanism,
the top of the valve seat is provided with an annular diaphragm groove, the diaphragm is arranged in the annular diaphragm groove, the side surface of the valve seat is symmetrically provided with reserved ports of a pressure external module, the reserved ports of the pressure external module are connected with a pressure gauge or a pressure sensor,
the valve cover is fixed above the valve seat, a screw nut is embedded in the top of the valve cover, a screw passes through a positioning nut and is movably connected with the screw nut, a screw protective sleeve is sleeved outside the screw,
the adjusting mechanism is arranged in the valve cover and comprises an adjusting component, a diaphragm pressing block, a rotating ball and a balance ball, the adjusting component is connected with the lead screw through the rotating ball, the adjusting component is connected with the diaphragm pressing block through the balance ball, the diaphragm pressing block is connected with the diaphragm,
the valve seat and the valve cover are made of plastic or stainless steel.
2. The corrosion-resistant pressure regulator valve of claim 1, wherein said valve seat is made of polyvinyl chloride, polypropylene or polyvinylidene fluoride.
3. The corrosion-resistant pressure regulating valve according to claim 1, wherein a plurality of bolt through holes are uniformly formed in the annular diaphragm groove, diaphragm through holes corresponding to the bolt through holes are formed in the diaphragm, bolts sequentially penetrate through the bolt through holes and the diaphragm through holes and then are fixed to the valve cover, and the diaphragm is fixed between the valve cover and the valve seat.
4. The corrosion resistant pressure regulator valve of claim 3, wherein said bolt has a nut with a corrosion resistant cap.
5. The corrosion-resistant pressure regulating valve according to claim 1, wherein the valve seat is further symmetrically provided with valve seat ports at the side, the valve seat ports comprise a first valve seat port and a second valve seat port, a cylindrical passage is provided at the center of the annular diaphragm groove, the first valve seat port is communicated with the cylindrical passage, a valve seat cavity is provided at the periphery of the cylindrical passage, and the second valve seat port is communicated with the valve seat cavity.
6. The corrosion-resistant pressure regulating valve according to claim 5, wherein a sealing ring, a lock nut and a connecting pipe flanging are connected to the valve seat port, the sealing ring is embedded in the valve seat port, and the lock nut is sleeved with the connecting pipe flanging and is in threaded connection with the valve seat port.
7. The corrosion resistant pressure regulator valve of claim 1, wherein said adjustment assembly comprises an upper spring seat, a spring, and a lower spring seat, one end of said spring being nested on said upper spring seat, the other end of said spring being nested on said lower spring seat.
8. The corrosion resistant pressure regulator valve of claim 7, wherein said spring top base is provided with a rotating ball seat at the top thereof, said rotating ball seat having said rotating ball disposed therein.
9. The corrosion resistant pressure regulator valve of claim 1, wherein said diaphragm compact is provided at a bottom thereof with a balancing ball seat having said balancing ball disposed therein.
10. The corrosion resistant pressure regulator valve of claim 1, wherein an upper portion of said diaphragm press block is embedded within said bonnet and a lower portion of said diaphragm press block is crimped to said diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318445.8U CN213361225U (en) | 2020-10-16 | 2020-10-16 | Corrosion-resistant pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318445.8U CN213361225U (en) | 2020-10-16 | 2020-10-16 | Corrosion-resistant pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213361225U true CN213361225U (en) | 2021-06-04 |
Family
ID=76130981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022318445.8U Active CN213361225U (en) | 2020-10-16 | 2020-10-16 | Corrosion-resistant pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213361225U (en) |
-
2020
- 2020-10-16 CN CN202022318445.8U patent/CN213361225U/en active Active
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| GR01 | Patent grant |