CN210461829U - Pressure stabilizing director for gas pressure regulator - Google Patents
Pressure stabilizing director for gas pressure regulator Download PDFInfo
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- CN210461829U CN210461829U CN201921574089.7U CN201921574089U CN210461829U CN 210461829 U CN210461829 U CN 210461829U CN 201921574089 U CN201921574089 U CN 201921574089U CN 210461829 U CN210461829 U CN 210461829U
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Abstract
The utility model belongs to the technical field of gas conveying equipment, a steady voltage commander for gas pressure regulator is disclosed. The main technical characteristics are as follows: the pressure regulating device comprises a commanding valve body, wherein a pressure stabilizing valve body is arranged at the front end of the commanding valve body, and the commanding valve body is provided with a commanding air inlet interface, a commanding air outlet interface, a pressure regulating upper cover, a bottom cover, a commanding pressure regulating valve core, an upper commanding pressure regulating film, a lower commanding pressure regulating film, a commanding pressure regulating spring, a commanding closing spring and a first feedback interface; the pressure-stabilizing valve body is provided with a pressure-stabilizing air inlet interface, a pressure-stabilizing air outlet interface, an upper valve cover, a lower valve cover, a filter screen, a pressure-stabilizing valve core, a pressure-stabilizing membrane, a pressure-stabilizing spring and a second feedback interface. This steady voltage commander for gas pressure regulator adopts one-level stabiliser and second grade commander two-stage decompression, through the setting of one-level stabiliser, makes second grade commander import and export pressure differential remain stable throughout, has improved whole pressure regulating system's stability. The structure is simple and the installation is convenient.
Description
Technical Field
The utility model belongs to the technical field of the gas conveying equipment, especially, relate to a steady voltage commander for gas pressure regulator.
Background
The gas pressure regulator is a device for regulating pipeline pressure in a gas transmission and distribution system, and generally comprises two structural forms, namely a direct-acting pressure regulator and an indirect-acting pressure regulator. The indirect acting pressure regulator is used in high pressure field and has the main working principle of controlling the main valve with the pressure change in the outlet amplified by the director. The existing director mostly adopts single-stage pressure regulation, and the outlet pressure of the pressure regulator is unstable due to overlarge inlet-outlet pressure difference or inlet pressure fluctuation in the using process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a steady voltage director for gas regulator that steady voltage precision is high is provided.
In order to solve the technical problem, the utility model discloses a technical scheme does: comprises a command valve body, a pressure-stabilizing valve body is arranged at the front end of the command valve body,
the commanding valve body is provided with a commanding air inlet interface and a commanding air outlet interface, the upper end of the commanding valve body is provided with an upper commanding pressure regulating cover, the lower end of the commanding valve body is provided with a bottom cover, the commanding valve body is provided with a commanding pressure regulating valve core, the upper end and the lower end of the commanding pressure regulating valve core are respectively provided with an upper commanding pressure regulating film and a lower commanding pressure regulating film, the upper commanding pressure regulating film is arranged between the upper pressure regulating cover and the commanding valve body, the lower commanding pressure regulating film is arranged between the commanding valve body and the bottom cover, the upper end of the upper pressure regulating cover is provided with a commanding pressure regulating spring, and the bottom;
the pressure stabilizing valve body be provided with steady voltage interface of admitting air and the steady voltage interface of giving vent to anger, steady voltage valve body upper end is provided with the upper valve gap, steady voltage valve body lower extreme is provided with the lower valve gap, be provided with the filter screen between upper valve gap and the steady voltage valve body, the steady voltage valve body is provided with the steady voltage case, steady voltage case lower extreme is provided with the steady voltage diaphragm, the steady voltage diaphragm sets up between steady voltage valve body and lower valve gap, the lower valve gap is provided with steady voltage spring and second feedback interface, the steady voltage interface of giving vent to anger and commander interface phase-.
The utility model provides a when steady voltage commander for gas pressure regulator used, the steady voltage of steady voltage valve body admitted air the interface connection upstream pressure, and the steady voltage is given vent to anger the interface and is admitted air the interface connection with the command of commanding the valve body, second feedback interface and first feedback interface connection, first feedback interface and gas pressure regulator low reaches pressure connection. And a command air outlet interface of the command valve body is connected with a load cavity of the gas pressure regulator. The pressure stabilizing valve body, the upper valve cover and the lower valve cover form a primary pressure stabilizer, and the commanding valve body, the pressure regulating upper cover and the bottom cover form a secondary director. When the pressure stabilizing valve works, the upstream pressure enters the pressure stabilizing valve body through the pressure stabilizing air inlet port and enters the pressure stabilizing valve core through the filter screen. At the moment, the pressure stabilizing valve core is in an open state under the action of the pressure stabilizing spring, the upstream pressure enters the commanding valve body through the pressure stabilizing air outlet interface and the commanding air inlet interface, and is output to enter a load cavity of the gas pressure regulator through the commanding air outlet interface after being decompressed by the commanding pressure regulating valve core. The downstream pressure of the gas pressure regulator reaches the cavity below the pressure stabilizing membrane through the first feedback interface and the second feedback interface.
When the downstream of the pressure regulator has no useful air, the first-stage pressure regulator composed of the pressure-stabilizing valve body, the upper valve cover and the lower valve cover and the second-stage director composed of the commanding valve body, the pressure-regulating upper cover and the bottom cover are all in a closed state.
When the downstream gas consumption increases, the downstream pressure decreases, the acting force acting on the upper commanding pressure regulating diaphragm correspondingly decreases, the commanding pressure regulating valve core is opened under the action of the commanding pressure regulating spring, the commanding air outlet interface pressure increases, the load pressure of the load cavity of the gas pressure regulator connected with the commanding air outlet interface increases, and the main valve of the gas pressure regulator is opened, so that the requirement of stable downstream pressure is met. When commanding the pressure regulating valve core to open, the output pressure of the steady voltage interface of giving vent to anger of steady voltage valve body reduces, and steady voltage valve core is opened under the effect of steady voltage spring to satisfy the gas consumption of commanding the valve body.
Conversely, when the downstream air usage is reduced, the process is reversed from that described above.
In the use process, the acting forces at the two ends of the pressure stabilizing membrane of the pressure stabilizing valve body are balanced mutually, so that the output pressure of the pressure stabilizing air outlet interface of the pressure stabilizing valve body is equal to the sum of the feedback pressure of the second feedback interface and the acting force of the pressure stabilizing spring, the pressure of the commanding air inlet interface of the commanding valve body can be automatically adjusted according to the outlet pressure of the gas pressure regulator, the pressure difference of the inlet and the outlet of the commanding valve body is always kept consistent, and the stability of the whole pressure regulating system is improved.
The utility model provides a steady voltage commander for gas pressure regulator adopts the one-level stabiliser that steady voltage valve body, upper valve gap, lower valve gap constitute and the second grade commander two-stage decompression that commander valve body, pressure regulating upper cover, bottom constitute, and independent modular structure is all adopted in the two-stage decompression, can be integrated as an organic whole, also can the exclusive use, can use with multiple pressure regulating technology is supporting according to different work condition. Through the arrangement of the primary voltage stabilizer, the pressure difference of the inlet and the outlet of the secondary director is always kept stable, and the stability of the whole voltage regulating system is improved. The structure is simple, the installation is convenient, and the manufacturing cost is low.
Drawings
FIG. 1 is a schematic structural view of a pressure stabilizing command device for a gas pressure regulator according to the present invention;
FIG. 2 is a schematic structural view of a pressure regulator valve body;
fig. 3 is a schematic structural diagram of a command valve body.
Detailed Description
The structure and the working principle of the pressure stabilizing commanding device for the gas pressure regulator of the utility model are further explained in detail with the attached drawings.
As shown in figure 1, the utility model discloses steady voltage commander for gas pressure regulator includes steady voltage valve body 1 and commander valve body 2.
As shown in fig. 2, the pressure-stabilizing valve body 1 is provided with a pressure-stabilizing air inlet port 101 and a pressure-stabilizing air outlet port 102, the upper end of the pressure-stabilizing valve body 1 is provided with an upper valve cover 103, the lower end of the pressure-stabilizing valve body 1 is provided with a lower valve cover 104, a filter screen 105 is arranged between the upper valve cover 103 and the pressure-stabilizing valve body 1, the pressure-stabilizing valve body 1 is provided with a pressure-stabilizing valve core 106, the lower end of the pressure-stabilizing valve core 106 is provided with a pressure-stabilizing membrane 107, the pressure-stabilizing membrane 107 is arranged between the pressure-stabilizing valve body 1 and.
As shown in fig. 3, the commanding valve body 2 is provided with a commanding air inlet interface 201 and a commanding air outlet interface 202, the upper end of the commanding valve body 2 is provided with an upper commanding pressure regulating cover 203, the lower end of the commanding valve body 2 is provided with a bottom cover 204, the commanding valve body 2 is provided with a commanding pressure regulating valve core 205, the upper end and the lower end of the commanding pressure regulating valve core 205 are respectively provided with an upper commanding pressure regulating film 206 and a lower commanding pressure regulating film 207, the upper commanding pressure regulating film 206 is arranged between the upper commanding cover 203 and the commanding valve body 2, the lower commanding pressure regulating film 207 is arranged between the commanding valve body 2 and the bottom cover 204, the upper end of the upper commanding pressure regulating cover 203 is provided with a commanding pressure regulating spring 208, and the.
The utility model provides a when steady voltage commander for gas pressure regulator uses, steady voltage inlet interface 101 of steady voltage valve body 1 connects the upper reaches pressure, and the steady voltage is given vent to anger interface 102 and is connected with commander valve body 2's commander inlet interface 201, and second feedback interface 109 is connected with first feedback interface 210, first feedback interface 210 and gas pressure regulator low reaches pressure connection. And a command gas outlet interface 202 of the command valve body 2 is connected with a load cavity of the gas pressure regulator. The pressure-stabilizing valve body 1, the upper valve cover 103 and the lower valve cover 104 form a primary pressure stabilizer, and the commanding valve body 2, the pressure-regulating upper cover 203 and the bottom cover 204 form a secondary director. During operation, the upstream pressure enters the pressure stabilizing valve body 1 through the pressure stabilizing air inlet 101, and enters the pressure stabilizing valve core 106 through the filter screen 105. At this time, the pressure stabilizing valve core 106 is in an open state under the action of the pressure stabilizing spring 108, the upstream pressure enters the commanding valve body 2 through the pressure stabilizing air outlet interface 102 and the commanding air inlet interface 201, and is output into a load cavity of the gas pressure regulator through the commanding air outlet interface 202 after being decompressed by the commanding pressure regulating valve core 205. The pressure downstream of the gas pressure regulator reaches the cavity below the pressure-stabilizing membrane 107 through the first feedback interface 210 and the second feedback interface 109.
When the downstream of the pressure regulator has no useful air volume, the primary pressure regulator formed by the pressure-stabilizing valve body 1, the upper valve cover 103 and the lower valve cover 104 commands the secondary director formed by the valve body 2, the pressure-regulating upper cover 203 and the bottom cover 204 to be in a closed state.
When the downstream gas consumption is increased, the downstream pressure is reduced, the acting force acting on the upper commanding pressure regulating diaphragm 206 is correspondingly reduced, the pressure regulating valve core 205 is commanded to be opened under the action of the commanding pressure regulating spring 208, the pressure of the gas outlet interface 202 is commanded to be increased, the load pressure of a load cavity of the gas pressure regulator connected with the gas outlet interface 202 is commanded to be increased, and the main valve of the gas pressure regulator is opened, so that the requirement of stable downstream pressure is met. When the pressure regulating valve core 205 is commanded to be opened, the output pressure of the pressure stabilizing air outlet interface 102 of the pressure stabilizing valve body 1 is reduced, and the pressure stabilizing valve core 106 is opened under the action of the pressure stabilizing spring 108, so that the air consumption of the command valve body 2 is met.
Conversely, when the downstream air usage is reduced, the process is reversed from that described above.
In the using process, the acting forces at the two ends of the pressure stabilizing membrane 107 of the pressure stabilizing valve body 1 are balanced with each other, so that the output pressure of the pressure stabilizing air outlet interface 102 of the pressure stabilizing valve body 1 is equal to the sum of the feedback pressure of the second feedback interface 109 and the acting force of the pressure stabilizing spring 108, the pressure commanding the air inlet interface 201 of the valve body 2 can be automatically adjusted according to the outlet pressure of the gas pressure regulator, the pressure difference of the inlet and the outlet of the valve body 2 is always kept consistent, and the stability of the whole pressure regulating system is improved.
The utility model provides a steady voltage commander for gas pressure regulator adopts the one-level stabiliser that steady voltage valve body 1, upper valve lid 103, lower valve gap 104 constitute and the second grade commander two-stage decompression that commander valve body 2, pressure regulating upper cover 203, bottom 204 constitute, and independent modular structure is all adopted in the two-stage decompression, can be integrated as an organic whole, also can the exclusive use, can be according to the supporting use of different operating modes and multiple pressure regulating technology. Through the arrangement of the primary voltage stabilizer, the pressure difference of the inlet and the outlet of the secondary director is always kept stable, and the stability of the whole voltage regulating system is improved. The structure is simple, the installation is convenient, and the manufacturing cost is low.
The utility model provides a steady voltage commander for gas pressure regulator is not only limited to above-mentioned structure, nevertheless no matter what kind of structure adopts, as long as adopted the utility model discloses various improvements that method design and technical scheme go on, or not improve will the utility model discloses a design and technical scheme directly are applied to other occasions, all are in the utility model discloses a within range.
Claims (1)
1. Steady voltage commander for gas pressure regulator, including command valve body, its characterized in that: the front end of the command valve body is provided with a pressure stabilizing valve body,
the commanding valve body is provided with a commanding air inlet interface and a commanding air outlet interface, the upper end of the commanding valve body is provided with an upper commanding pressure regulating cover, the lower end of the commanding valve body is provided with a bottom cover, the commanding valve body is provided with a commanding pressure regulating valve core, the upper end and the lower end of the commanding pressure regulating valve core are respectively provided with an upper commanding pressure regulating film and a lower commanding pressure regulating film, the upper commanding pressure regulating film is arranged between the upper pressure regulating cover and the commanding valve body, the lower commanding pressure regulating film is arranged between the commanding valve body and the bottom cover, the upper end of the upper pressure regulating cover is provided with a commanding pressure regulating spring, and the bottom;
the pressure stabilizing valve body be provided with steady voltage interface of admitting air and the steady voltage interface of giving vent to anger, steady voltage valve body upper end is provided with the upper valve gap, steady voltage valve body lower extreme is provided with the lower valve gap, be provided with the filter screen between upper valve gap and the steady voltage valve body, the steady voltage valve body is provided with the steady voltage case, steady voltage case lower extreme is provided with the steady voltage diaphragm, the steady voltage diaphragm sets up between steady voltage valve body and lower valve gap, the lower valve gap is provided with steady voltage spring and second feedback interface, the steady voltage interface of giving vent to anger and commander interface phase-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574089.7U CN210461829U (en) | 2019-09-21 | 2019-09-21 | Pressure stabilizing director for gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574089.7U CN210461829U (en) | 2019-09-21 | 2019-09-21 | Pressure stabilizing director for gas pressure regulator |
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| Publication Number | Publication Date |
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| CN210461829U true CN210461829U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921574089.7U Active CN210461829U (en) | 2019-09-21 | 2019-09-21 | Pressure stabilizing director for gas pressure regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747155A (en) * | 2020-12-25 | 2021-05-04 | 江苏盛伟燃气科技有限公司 | A commander for gas pressure regulator |
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2019
- 2019-09-21 CN CN201921574089.7U patent/CN210461829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747155A (en) * | 2020-12-25 | 2021-05-04 | 江苏盛伟燃气科技有限公司 | A commander for gas pressure regulator |
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