CN212251347U - Small-flow diaphragm type balance valve pressure regulator - Google Patents
Small-flow diaphragm type balance valve pressure regulator Download PDFInfo
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- CN212251347U CN212251347U CN201922501479.8U CN201922501479U CN212251347U CN 212251347 U CN212251347 U CN 212251347U CN 201922501479 U CN201922501479 U CN 201922501479U CN 212251347 U CN212251347 U CN 212251347U
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Abstract
The utility model discloses a small-flow diaphragm type balance valve pressure regulator, which comprises a valve body, wherein the valve body is provided with a cutting cover, an overpressure spring is arranged in the valve body, a lining plate is arranged below the overpressure spring, a cutting diaphragm is arranged on the outer side of the lining plate, the valve body is provided with a valve port and a shaft sleeve, a diaphragm pressing block is arranged below the shaft sleeve, the diaphragm pressing block is provided with a plurality of O-shaped rings, a diaphragm is arranged below the diaphragm pressing block, the valve body is provided with a nut and a pressing nut, a gasket is arranged below the nut, a valve pad assembly is arranged in the valve body, a valve pad pressing plate is arranged on the valve pad assembly, the valve pad component is provided with a balance valve rod, the valve port, the valve pressure plate and the balance valve rod are installed in an integrated manner, the valve port adopts a diaphragm type balance valve, the cutting cover is divided into a cutting upper cover and a cutting lower cover, and the cutting upper cover and the cutting lower cover are connected through bolts.
Description
Technical Field
The utility model relates to a general mechanical equipment makes technical field, especially relates to a low discharge diaphragm formula balanced valve regulator.
Background
The pressure regulator is mainly suitable for the transportation and pressure regulation of small-flow medium-pressure natural gas, LPG and other non-corrosive gases, improves the flow coverage range of the pressure regulator and reduces the user cost. The pressure regulator is extremely low in investment cost, natural gas and LPG pressure regulating devices are expected to be rapidly developed along with the enhancement of environmental awareness, and the natural gas and LPG pressure regulators which need to be matched are more and more. In addition, the popularization of the natural gas and LPG pressure regulating device accords with the energy-saving and emission-reducing policy of China and is necessarily supported by the national government and the local government. The development of the project can enlarge the flow application range of the pressure regulator and improve the pressure regulating precision. Will certainly be welcomed by the user.
Disclosure of Invention
The utility model discloses solve prior art's not enough, provide a little flow diaphragm formula balanced valve regulator. In order to solve the above problem, the utility model adopts the following technical scheme:
the small-flow diaphragm type balance valve pressure regulator comprises a valve body, wherein a cut-off cover is arranged on the valve body, an overpressure spring is arranged in the valve body, a lining plate is arranged below the overpressure spring, a cut-off diaphragm is arranged on the outer side of the lining plate, a valve port is arranged on the valve body, a shaft sleeve is arranged on the valve body, a diaphragm pressing block is arranged below the shaft sleeve and provided with a plurality of O-shaped rings, a diaphragm is arranged below the diaphragm pressing block, a nut and a pressing nut are arranged on the valve body, a gasket is arranged below the nut, and a valve pad assembly is arranged in the valve.
Compared with the scheme, the valve pad assembly is further provided with a valve pad pressing plate.
Compared with the scheme, the valve pad assembly is further provided with a balance valve rod.
Compared with the scheme, the valve port, the valve pressure plate and the balance valve rod are integrally installed, and convenience in installation and maintenance is improved.
Compared with the scheme, the valve port adopts a diaphragm type balance valve. Ventilation, compaction of the diaphragm, control of the compression amount of the diaphragm and guarantee of coaxiality of the slender shaft after connection.
Compared with the scheme, the cutting cover is divided into a cutting upper cover and a cutting lower cover.
Compared with the scheme, the upper cutting cover and the lower cutting cover are connected through bolts.
Has the advantages that: the newly developed pressure regulator can enlarge the flow coverage of the pressure regulators of the type under the same precision, or improve the pressure regulating precision under the same flow, avoid the gas pressure from being influenced by the gas consumption to generate larger fluctuation, improve the safety of gas consumption, enable users to avoid selecting the pressure regulator with larger caliber as far as possible, reduce the cost, improve the installation and the maintenance convenience, and the valve port adopts a diaphragm type balance valve. Ventilation, compaction of the diaphragm, control of the compression amount of the diaphragm and guarantee of coaxiality of the slender shaft after connection.
Drawings
Fig. 1 shows the present invention.
Fig. 2 illustrates the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A small-flow diaphragm type balance valve pressure regulator is characterized by comprising a valve body.
The valve body is provided with a cutting cover, an overpressure spring is arranged in the valve body, a lining plate is arranged below the overpressure spring, a cutting diaphragm is arranged on the outer side of the lining plate, a valve port is arranged on the valve body, a shaft sleeve is arranged on the valve body, a diaphragm pressing block is arranged below the shaft sleeve, a plurality of O-shaped rings are arranged on the diaphragm pressing block, a diaphragm is arranged below the diaphragm pressing block, a nut and a pressing nut are arranged on the valve body, a gasket is arranged below the nut, and a valve pad assembly is arranged in the valve.
And a valve pad pressing sheet is arranged on the valve pad assembly.
And a balance valve rod is arranged on the valve pad assembly.
The valve port, the valve pressure plate and the balance valve rod are integrally installed. The convenience of installation and maintenance is improved.
The valve port adopts a diaphragm type balance valve. Ventilation, compaction of the diaphragm, control of the compression amount of the diaphragm and guarantee of coaxiality of the slender shaft after connection.
The cutting cover is divided into a cutting upper cover and a cutting lower cover, and the cutting upper cover and the cutting lower cover are connected through bolts.
To the pressure regulator valve body of taking the trip valve, adopt the double flow way structure, avoid the mutual interference of pressure regulator and trip valve runner.
The diaphragm type balance valve pressure regulator adopts a balance valve structure, so that the inlet pressure and the outlet pressure act on the valve pad and the balance diaphragm at the same time, but the acting directions are opposite, and the influence of the change of the inlet pressure and the outlet pressure on the outlet pressure is basically zero. And because of adopting the diaphragm type structure, compared with the piston type structure, the friction resistance is smaller, and the pressure return difference can be obviously reduced. Therefore, the flow of the pressure regulator can be effectively improved under the same precision. However, the diaphragm type balance valve is only suitable for the working condition that the pressure is below 6bar because the rubber diaphragm cannot bear high pressure. For inlet pressures below 6bar, outlet pressures are in the range of 0.3-4 bar.
The newly developed pressure regulator can enlarge the flow coverage of the pressure regulators of the type under the same precision, or improve the pressure regulating precision under the same flow, avoid the gas pressure from being influenced by the gas consumption to generate larger fluctuation, improve the safety of gas consumption, enable users to avoid selecting the pressure regulator with larger caliber as far as possible, reduce the cost, improve the installation, and improve the maintenance convenience, and the valve port adopts a diaphragm type balance valve. Ventilation, compaction of the diaphragm, control of the compression amount of the diaphragm and guarantee of coaxiality of the slender shaft after connection.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications can be made without departing from the principle of the invention, and these modifications should be construed as the protection scope of the present invention.
Claims (7)
1. The small-flow diaphragm type balance valve pressure regulator is characterized by comprising a valve body, wherein a cut-off cover is arranged on the valve body, an overpressure spring is arranged in the valve body, a lining plate is arranged below the overpressure spring, a cut-off diaphragm is arranged on the outer side of the lining plate, a valve port is arranged on the valve body, a shaft sleeve is arranged on the valve body, a diaphragm pressing block is arranged below the shaft sleeve, a plurality of O-shaped rings are arranged on the diaphragm pressing block, a diaphragm is arranged below the diaphragm pressing block, a nut and a pressing nut are arranged on the valve body, a gasket is arranged below the nut, and a valve gasket assembly is.
2. The small flow diaphragm balanced valve regulator of claim 1, wherein the valve pad assembly has a valve pad pressure plate thereon.
3. A small flow diaphragm balanced valve regulator according to claim 1 in which the valve pad assembly is provided with a balanced valve stem.
4. The small-flow diaphragm balanced valve pressure regulator of claim 2 or 3, wherein the valve port, the valve pressure plate and the balanced valve stem are integrally mounted.
5. The small-flow diaphragm balanced valve pressure regulator of claim 1, wherein the valve port is a diaphragm balanced valve.
6. A small flow diaphragm balanced valve regulator according to claim 1 wherein the cut-off cover is divided into a segmented upper cover and a cut-off lower cover.
7. The small-flow diaphragm balanced valve regulator of claim 6, wherein the upper cut-off cover and the lower cut-off cover are connected by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501479.8U CN212251347U (en) | 2019-12-31 | 2019-12-31 | Small-flow diaphragm type balance valve pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501479.8U CN212251347U (en) | 2019-12-31 | 2019-12-31 | Small-flow diaphragm type balance valve pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251347U true CN212251347U (en) | 2020-12-29 |
Family
ID=73988794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922501479.8U Active CN212251347U (en) | 2019-12-31 | 2019-12-31 | Small-flow diaphragm type balance valve pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251347U (en) |
-
2019
- 2019-12-31 CN CN201922501479.8U patent/CN212251347U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A small flow diaphragm balance valve regulator Effective date of registration: 20210427 Granted publication date: 20201229 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: SGS ENERGY EQUIPMENT (NINGBO) Co.,Ltd. Registration number: Y2021330000343 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220513 Granted publication date: 20201229 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: SGS ENERGY EQUIPMENT (NINGBO) CO.,LTD. Registration number: Y2021330000343 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A small flow diaphragm balance valve regulator Effective date of registration: 20220516 Granted publication date: 20201229 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: SGS ENERGY EQUIPMENT (NINGBO) CO.,LTD. Registration number: Y2022330000701 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |