CN220396625U - Pressure reducing valve for industrial gas production - Google Patents
Pressure reducing valve for industrial gas production Download PDFInfo
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- CN220396625U CN220396625U CN202321475957.2U CN202321475957U CN220396625U CN 220396625 U CN220396625 U CN 220396625U CN 202321475957 U CN202321475957 U CN 202321475957U CN 220396625 U CN220396625 U CN 220396625U
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- reducing valve
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- 238000007789 sealing Methods 0.000 claims description 2
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- 239000007789 gas Substances 0.000 description 36
- 238000010586 diagram Methods 0.000 description 5
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- 238000012986 modification Methods 0.000 description 2
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- 239000008280 blood Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of industrial gas equipment, in particular to a pressure reducing valve for industrial gas production, which comprises a pressure reducing valve, a gas inlet, a gas outlet, a valve rod, a mounting plate II, a diaphragm and an elastic adjusting component; the pressure reducing valve comprises a shell, and an upper shell and a lower shell are arranged on the upper side of the shell. According to the utility model, through the upper shell, the lower shell, the air inlet, the air outlet, the valve rod, the piston, the mounting plate, the diaphragm and the elastic adjusting component, when the elastic adjusting component is mounted at the top end of the mounting plate, the acting force exerted on the piston by the elastic adjusting component is only required to be larger than the sum of the pressure of the air at the air outlet acting on the bottom end of the outer surface of the piston and the bottom of the top end, so that the piston can move downwards along the valve rod, the communication between the air inlet and the air outlet is realized, the stability is better, and the air pressure value at the outlet of the pressure reducing valve can be changed by adjusting the elastic adjusting component in the use process, thereby meeting the use requirement.
Description
Technical Field
The utility model relates to the technical field of industrial gas equipment, in particular to a pressure reducing valve for industrial gas production.
Background
Along with the development of national economy in China, the industry is gradually developed. In the industrial development and production process, the requirements and the application of industrial gas are continuously expanded, and the use amount is continuously increased. Industrial gas is said to be industrial "blood", and with the rapid development of the national economy, the industrial gas is one of the basic industrial elements of the national economy, and the importance and the effect of the industrial gas in the national economy are increasingly prominent.
During the use of industrial gases, the pressure of the industrial gas is often not constant, so when the pressure of the gas is higher than the intended use, a pressure reducing valve that can reduce the pressure and keep the pressure constant after the pressure reduction is often used. I.e. the outlet pressure remains constant, regardless of the pressure of the inlet gas.
The existing pressure reducing valve has the defects of complex structure and poor stability in the use process, and the opening pressure value of the pressure reducing valve cannot be adjusted according to the needs in the use process.
Accordingly, a person skilled in the art provides a pressure reducing valve for industrial gas production to solve the problems set forth in the background art described above.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a pressure reducing valve for industrial gas production, which comprises a pressure reducing valve, an air inlet, an air outlet, a valve rod, a mounting plate II, a diaphragm and an elastic adjusting component;
the pressure reducing valve comprises a shell, an upper shell and a lower shell are arranged on the upper side of the shell, and a valve rod is vertically and fixedly arranged in the inner cavity;
the lower extreme fixedly connected with fixed column of relief pressure valve, the quantity of fixed column is four, and the left and right sides of going up casing and lower casing is equipped with fixing bolt, and fastening connection has the fastener on the fixing bolt.
Preferably: the lower shell is fixedly arranged at the bottom end of the upper shell, and an inner cavity is formed between the upper shell and the lower shell.
Preferably: the air inlet is arranged on one side of the lower shell, and the air outlet is arranged on the other side of the lower shell.
Preferably: and a piston is slidably arranged on the valve rod, and the inner cavity of the piston is communicated with the air inlet.
Preferably: the second mounting plate is arranged in the inner cavity and fixedly mounted at the top end of the valve rod.
Preferably: the top end of the outer surface of the piston is contacted with the bottom end of the mounting plate II, and the diaphragm is arranged between the mounting plate II and the inner wall of the inner cavity in a sealing way.
Preferably: the elastic adjusting component is arranged between the top end of the inner cavity and the second mounting plate, the air outlet is communicated with the bottom end of the outer surface of the piston, and the air outlet is communicated with the bottom of the top end of the outer surface of the piston through a through hole.
Preferably: the upper shell and the lower shell are connected through the fixed bolt pairs.
The utility model has the technical effects and advantages that:
according to the utility model, through the upper shell, the lower shell, the air inlet, the air outlet, the valve rod, the piston, the mounting plate, the diaphragm and the elastic adjusting component, when the elastic adjusting component is mounted at the top end of the mounting plate, the acting force exerted on the piston by the elastic adjusting component is only required to be larger than the sum of the pressure of the air at the air outlet acting on the bottom end of the outer surface of the piston and the bottom of the top end, so that the piston can move downwards along the valve rod, the communication between the air inlet and the air outlet is realized, the stability is better, and the air pressure value at the outlet of the pressure reducing valve can be changed by adjusting the elastic adjusting component in the use process, thereby meeting the use requirement.
Drawings
FIG. 1 is a schematic view of a pressure reducing valve for industrial gas production according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a pressure reducing valve for industrial gas production according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a bottom view of a pressure relief valve for industrial gas production according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a top view of a pressure reducing valve for industrial gas production according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram III of a pressure reducing valve for industrial gas production according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram showing a pressure reducing valve for industrial gas production according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of the structure of a pressure reducing valve for industrial gas production in fig. 6 a according to an embodiment of the present application.
In the figure: 1. a pressure reducing valve; 2. a housing; 3. an upper housing; 4. a lower housing;
5. an elastic adjustment assembly; 51. adjusting a screw; 52. a spring plate; 53. a spring; 54. a first mounting plate;
6. a second mounting plate; 7. a diaphragm; 8. a valve stem; 9. an air inlet; 10. an air outlet;
11. fixing the column; 12. a fixing bolt; 13. a fastener.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
Referring to fig. 1 to 7, in the present embodiment, a pressure reducing valve for industrial gas production is provided, which includes a pressure reducing valve 1, a gas inlet 9, a gas outlet 10, a valve rod 8, a second mounting plate 6, a diaphragm 7, and an elastic adjusting component 5;
the pressure reducing valve 1 comprises a shell 2, an upper shell 3 and a lower shell 4 are arranged on the upper side of the shell 2, the lower shell 4 is fixedly arranged at the bottom end of the upper shell 3, an inner cavity is formed between the upper shell 3 and the lower shell 4, an air inlet 9 is arranged on one side of the lower shell 4, an air outlet 10 is arranged on the other side of the lower shell 4, a valve rod 8 is vertically and fixedly arranged in the inner cavity, a piston is slidably arranged on the valve rod 8 and used for realizing the communication or stop of the air inlet 9 and the air outlet 10, the inner cavity of the piston is communicated with the air inlet 9, a second mounting plate 6 is arranged in the inner cavity, a second mounting plate 6 is fixedly arranged at the top end of the valve rod 8, the top end of the outer surface of the piston is contacted with the bottom end of the second mounting plate 6, a diaphragm 7 is hermetically arranged between the second mounting plate 6 and the inner wall of the inner cavity, an elastic adjusting component 5 is arranged between the top end of the inner cavity and the second mounting plate 6 and used for exerting acting force on the piston, the air outlet 10 is communicated with the bottom end of the outer surface of the piston, and the air outlet 10 is communicated with the bottom of the top end of the outer surface of the piston through a through arranged through hole;
the lower extreme fixedly connected with fixed column 11 of relief pressure valve 1, the quantity of fixed column 11 is four, and the left and right sides of last casing 3 and lower casing 4 is equipped with fixing bolt 12, and fastening connection has fastener 13 on the fixing bolt 12, is connected to last casing 3 and lower casing 4 through the fixing bolt 12 that sets up.
The working principle of the utility model is as follows: when the elastic adjusting assembly is used, the acting force applied to the piston of the elastic adjusting assembly 5 is only required to be larger than the sum of the pressures of the bottom end and the top end of the outer surface of the piston acted by the gas at the gas outlet 10, so that the piston can move downwards along the valve rod 8 to realize the communication between the gas inlet 9 and the gas outlet 10;
for easier visual understanding, assuming that the gas pressure at the gas inlet 9 is P1 and the gas pressure at the gas outlet 10 is P2, the communication between the gas inlet 9 and the gas outlet 10 can be achieved as long as the elastic force exerted on the piston by the elastic adjusting assembly 5 is greater than the sum of the forces exerted on the bottom of the bottom end and the top end of the outer surface of the piston by the gas pressure P2 of the gas outlet 10;
since whether the pressure reducing valve 1 is opened is only related to the pressure value at the air outlet 10, the stability is better, and the gas pressure value at the outlet of the pressure reducing valve 1 can be changed by adjusting the elastic adjusting component 5 in the use process, so that the use requirement is met. The elastic adjusting assembly 5 comprises an adjusting screw rod 51, a spring plate 52, a spring 53 and a first mounting plate 54, wherein the adjusting screw rod 51 is horizontally arranged at the top end of the inner cavity, the bottom end of the adjusting screw rod 51 is fixedly connected with the top end of the spring plate 52, and the spring 53 is compressively arranged between the spring plate 52 and the first mounting plate 54.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (8)
1. The pressure reducing valve for industrial gas production comprises a pressure reducing valve (1), an air inlet (9), an air outlet (10), a valve rod (8), a mounting plate II (6), a diaphragm (7) and an elastic adjusting assembly (5), and is characterized in that the pressure reducing valve (1) comprises a shell (2), an upper shell (3) and a lower shell (4) are arranged on the upper side of the shell (2), and the valve rod (8) is vertically and fixedly arranged in an inner cavity;
the lower extreme fixedly connected with fixed column (11) of relief pressure valve (1), the quantity of fixed column (11) is four, and the left and right sides of last casing (3) and inferior valve (4) is equipped with fixing bolt (12), and fastening piece (13) are connected with on fixing bolt (12) fastening.
2. A pressure reducing valve for industrial gas production according to claim 1, wherein the lower housing (4) is fixedly mounted at the bottom end of the upper housing (3), and the upper housing (3) and the lower housing (4) are formed with inner cavities.
3. Pressure reducing valve for industrial gas production according to claim 1, characterized in that the gas inlet (9) is arranged on one side of the lower housing (4) and the gas outlet (10) is arranged on the other side of the lower housing (4).
4. A pressure reducing valve for industrial gas production according to claim 1, characterized in that the valve rod (8) is slidably fitted with a piston, the inner cavity of which communicates with the gas inlet (9).
5. A pressure reducing valve for industrial gas production according to claim 1, wherein the second mounting plate (6) is arranged in the inner cavity, and the second mounting plate (6) is fixedly arranged at the top end of the valve rod (8).
6. The pressure reducing valve for industrial gas production according to claim 4, wherein the top end of the outer surface of the piston is in contact with the bottom end of the second mounting plate (6), and the diaphragm (7) is mounted between the second mounting plate (6) and the inner wall of the inner cavity in a sealing manner.
7. A pressure reducing valve for industrial gas production according to claim 1, wherein the elastic adjusting component (5) is arranged between the top end of the inner cavity and the second mounting plate (6), the gas outlet (10) is communicated with the bottom end of the outer surface of the piston, and the gas outlet (10) is communicated with the bottom of the top end of the outer surface of the piston through a through hole.
8. Pressure reducing valve for industrial gas production according to claim 1, characterized in that the upper housing (3) and the lower housing (4) are connected by means of the fixing bolts (12) provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475957.2U CN220396625U (en) | 2023-06-09 | 2023-06-09 | Pressure reducing valve for industrial gas production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475957.2U CN220396625U (en) | 2023-06-09 | 2023-06-09 | Pressure reducing valve for industrial gas production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220396625U true CN220396625U (en) | 2024-01-26 |
Family
ID=89607729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321475957.2U Active CN220396625U (en) | 2023-06-09 | 2023-06-09 | Pressure reducing valve for industrial gas production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220396625U (en) |
-
2023
- 2023-06-09 CN CN202321475957.2U patent/CN220396625U/en active Active
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