Gas pressure stabilizing and current stabilizing device and industrial gas transmission system

Abstract

The present application belongs to the technical field of voltage stabilizing and current stabilizing device, and particularly relates to a gas voltage stabilizing and current stabilizing device and an industrial gas transmission system. The device comprises a valve body, a pressure regulating valve module, a gas flow stabilizing valve module and a flow regulating valve module. The valve body has a voltage stabilizing structure cavity and a current stabilizing structure cavity inside. The pressure regulating valve module is arranged inside the voltage stabilizing structure cavity, which divides the voltage stabilizing structure cavity into a gas inlet lower cavity and a voltage stabilizing upper cavity. The gas flow stabilizing valve module is arranged inside the current stabilizing structure cavity. The flow regulating valve module is arranged on a three-way connecting pipeline, which is used for regulating the flow of the gas delivered to the current stabilizing structure cavity. The pressure regulating valve module and the gas flow stabilizing valve module are linked, which can automatically regulate the gas pressure and gas flow in the voltage stabilizing and current stabilizing device under different pressures, so as to reduce the demand for gas during welding to the minimum, while ensuring the gas demand during welding.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of voltage stabilizing and current stabilizing devices, and particularly relates to a gas voltage stabilizing and current stabilizing device and an industrial gas transmission system. BACKGROUND

[0002] The current national economic and social development 14th Five-Year Plan and the 2035-year vision; the carbon dioxide emission per unit of GDP is reduced by 18% (a binding indicator). Shipbuilding, engineering machinery and steel structure enterprises all use a large amount of argon arc welding equipment and carbon dioxide welding equipment for welding processing. Due to different gas supply modes and use habits of enterprises, the gas pressure in the long-distance pipeline is unbalanced, the gas pressure of the gas using equipment arranged at the terminal of the gas supply system is low, in order to ensure the stability of the welding quality, the pipeline pressure is generally adjusted upward to increase the system pressure, but in this way, the gas pressure of the gas using equipment arranged at the front end of the gas supply system is high, which causes different degrees of waste in the welding process. Therefore, how to reduce the carbon dioxide emission is the primary problem of energy saving and emission reduction for enterprises.

[0003] Therefore, a voltage stabilizing and current stabilizing device is urgently needed to reduce the demand for gas during welding to the minimum through automatic adjustment in the voltage stabilizing and current stabilizing device under different pressures, while ensuring the gas demand during welding. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the application provides a gas voltage stabilizing and current stabilizing device and an industrial gas transmission system, which can reduce the demand for gas during welding to the minimum through automatic adjustment in the voltage stabilizing and current stabilizing device under different pressures, while ensuring the gas demand during welding.

[0005] One scheme of the application provides a gas voltage stabilizing and current stabilizing device, which comprises a valve body, a pressure regulating valve module, a gas flow stabilizing valve module and a flow regulating valve module.

[0006] The valve body has a pressure stabilizing structure cavity and a flow stabilizing structure cavity inside, and the pressure stabilizing structure cavity and the flow stabilizing structure cavity are communicated through a three-way connecting pipeline;

[0007] The pressure regulating valve module is arranged in the pressure stabilizing structure cavity, and divides the pressure stabilizing structure cavity into a gas inlet lower cavity and a pressure stabilizing upper cavity, the gas inlet lower cavity is communicated with a gas inlet port A of the valve body, and the pressure regulating valve module is configured to regulate the pressure of the gas transported from the gas inlet lower cavity to the pressure stabilizing upper cavity;

[0008] The gas flow stabilizing valve module is arranged in the flow stabilizing structure cavity, and the flow stabilizing structure cavity is communicated with a gas outlet port B of the valve body;

[0009] The flow regulating valve module is arranged on the three-way connecting pipeline and is used for regulating the flow of the gas delivered to the steady flow structure cavity.

[0010] In one of the schemes of the present application, the pressure regulating valve module comprises a first tooth holder, a first tooth cover, a first valve core, a first spring and a regulating tooth cover.

[0011] The first tooth holder is fixed at the bottom of the gas inlet lower cavity, and a rubber ring groove is arranged at the top of the first tooth holder for mounting a sealing ring.

[0012] The first tooth cover is arranged between the gas inlet lower cavity and the pressure stabilizing upper cavity, and a first air hole is arranged on the side of the first tooth cover, and a second air hole is arranged at the top of the first tooth cover and communicates with the first air hole.

[0013] The first valve core is arranged in sliding mode along the accommodating hole in the center of the first tooth cover, the first valve core is in sliding sleeve connection with the top of the first tooth holder, a sealing rubber layer is arranged on the outside of the first valve core, an air pipeline is arranged at the center of the first valve core, and the top end of the first valve core is semicircular.

[0014] The first spring is arranged between the first valve core and the first tooth holder.

[0015] The regulating tooth cover is fixedly arranged in the threaded hole at the top of the valve body, the bottom of the regulating tooth cover is in abutment with the first valve core, and the regulating tooth cover is used for realizing the regulating pressure effect of the first valve core.

[0016] In one of the schemes of the present application, the regulating tooth cover further comprises a regulating bolt, a second spring, a metal rubber sheet and a spring pressing sheet.

[0017] The metal rubber sheet is arranged between the regulating tooth cover and the threaded hole at the top of the valve body, the metal rubber sheet is used for sealing the threaded hole to form the pressure stabilizing upper cavity, and the metal rubber sheet is in abutment with the top end of the first valve core.

[0018] The second spring is arranged at the top of the metal rubber sheet, and the second spring is embeddedly arranged in the inside of the regulating tooth cover.

[0019] The regulating bolt and the spring pressing sheet are arranged at the top of the regulating tooth cover and are used for regulating the elastic stroke of the second spring.

[0020] In one of the schemes of the present application, the air flow stabilizing valve module comprises a second tooth holder, a second valve core and a third spring.

[0021] The second tooth holder is fixedly arranged at the bottom of the steady flow structure cavity.

[0022] The second valve core is arranged on the top of the steady flow structure cavity and the connection of the three-way connection pipeline;

[0023] The third spring is arranged between the second tooth base and the second valve core.

[0024] The top end of the second valve core is semicircular.

[0025] In one of the schemes of the present application, the flow regulating valve module comprises a threaded body seat, an adjusting assembly, an inner hole snap spring,

[0026] The threaded body seat is arranged in the threaded hole on the top of the valve body, and the bottom of the threaded body seat is communicated to the three-way connection pipeline, for controlling the flow of gas by the depth of the threaded body seat.

[0027] The adjusting assembly is in transmission connection with the threaded body seat, for adjusting and locking the current depth of the threaded body seat.

[0028] The inner hole snap spring is arranged in the threaded hole on the top of the valve body, for limiting the threaded body seat.

[0029] In one of the schemes of the present application, the bottom of the threaded body seat is in the shape of a gradually reduced cone.

[0030] And / or, the outer side of the threaded body seat is provided with a rubber ring groove for installing a sealing ring.

[0031] In one of the schemes of the present application, the gas path formed by the pressure regulating valve module at least comprises one of the following:

[0032] The sealing rubber layer on the outer side of the first valve core is in abutment with the bottom of the first tooth cover, the top of the first valve core is in abutment with the first air hole and the second air hole, the first valve core is in a sealing state, and the air flow is closed from the air inlet lower cavity to the pressure stabilizing upper cavity through the air pipe;

[0033] Or, the sealing rubber layer on the outer side of the first valve core is completely separated from the bottom of the first tooth cover, the top of the first valve core is in abutment with the second air hole, the first valve core is in a half-open state, and the air flow is transported from the air inlet lower cavity to the pressure stabilizing upper cavity through the air pipe arranged at the center of the first valve core and the first air hole.

[0034] Or, the sealing rubber layer on the outer side of the first valve core is completely separated from the bottom of the first tooth cover, the top of the first valve core is not in abutment with the first air hole and the second air hole, and the first valve core is in a completely open state, and the air flow is transported from the air inlet lower cavity to the pressure stabilizing upper cavity through the first air hole and the second air hole.

[0035] In one of the schemes of the present application, the pressure regulating cavity is formed in the threaded hole on the top of the valve body.

[0036] When the pressure in the pressure regulating cavity is greater than the pressure in the pressure maintaining upper cavity, the pressure regulating cavity expands, and the height position of the first valve core drops, so that the first valve core is in a semi-open state or a fully open state.

[0037] Alternatively, when the pressure in the pressure regulating cavity is less than the pressure in the pressure maintaining upper cavity, the pressure regulating cavity contracts, and the height position of the first valve core rises, so that the first valve core is in a sealed state.

[0038] In one of the schemes of the present application, a pressure gauge is further provided on the three-way connecting pipeline, for displaying the pressure of the gas output through the gas outlet port B.

[0039] And / or, a filter screen is further provided between the gas outlet end of the gas inlet connector and the gas inlet port A of the valve body, for filtering the pressure gas delivered by the gas inlet connector.

[0040] In one of the schemes of the present application, an industrial gas transmission system is provided, comprising a gas supply device, a gas transmission pipeline, and a gas pressure and flow stabilizing device.

[0041] The gas supply device is in communication with the gas transmission pipeline, for delivering compressed gas to the gas transmission pipeline.

[0042] A plurality of connecting ports are sequentially provided on the gas transmission pipeline, and the gas pressure and flow stabilizing device is provided on the connecting ports, for automatically balancing the output pressure and output flow of the plurality of connecting ports on the gas transmission pipeline.

[0043] In one of the schemes of the present application, an industrial gas transmission system is provided, comprising a gas supply device, a gas transmission pipeline, and a gas pressure and flow stabilizing device.

[0044] From the above technical solutions, it can be seen that the gas pressure and flow stabilizing device and the industrial gas transmission system of the present application have the following advantages:

[0045] 1. The pressure regulating valve module adjusts the pressure according to the different pressure differences in the pipeline, automatically adjusts the pressure of the gas transported from the air inlet lower cavity to the pressure stabilizing upper cavity, and can make the gas pressure and flow stabilizing device output the gas flow corresponding to the operation pressure; and the gas flow stabilizing valve module and the flow regulating valve module automatically adjust the flow of the gas transported from the pressure stabilizing upper cavity to the flow stabilizing structure cavity, and can make the gas flow and gas flow rate output by the gas pressure and flow stabilizing device stable in the interval corresponding to the operation requirement; therefore, the present application can automatically adjust the gas pressure and flow in the pressure and flow stabilizing device under different pressures to minimize the demand for gas during welding, while ensuring that the gas demand during welding is met.

[0046] 2. The first valve core in the pressure regulating valve module is linked with the second valve core in the gas flow stabilizing valve module, when the gas outlet port B is opened, the gas flows outwards, the height position of the second valve core is lowered and the gas pressure in the flow stabilizing structure cavity is lowered, after the pressure is lowered to a certain extent, the metal rubber sheet in the adjusting tooth cover is pressed down, the height position of the first valve core is lowered, the first valve core is in a semi-open or fully open state, the gas flow is transported from the air inlet lower cavity to the pressure stabilizing upper cavity, and the aeration function is realized; therefore, the present application can realize the output pressure of the adjusted gas flow, and at the same time, the first valve core is in a sealed state when not started, avoiding energy waste caused by too high output pressure.

[0047] 3. The adjusting tooth cover in the pressure regulating valve module is installed on the valve body by threaded connection, the initial size of the pressure regulating cavity can be simply and conveniently adjusted by adjusting the connection depth of the thread, which is convenient for operation personnel to operate and has low difficulty; and the current depth of the threaded body seat is adjusted and locked by setting the adjusting assembly, so that the aeration amount and pressure are consistent each time; multiple sealing rings are arranged in the pressure regulating valve module, the gas flow stabilizing valve module and the flow regulating valve module, so that the sealing performance of the device is good and leakage is basically eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creative labor.

[0049] Figure 1 The cross-sectional structure schematic diagram of the whole present application is shown;

[0050] Figure 2 The structure schematic diagram of the valve body of the present application is shown;

[0051] Figure 3Structure diagram of pressure regulating valve module of the present application;

[0052] Figure 4 Structure diagram of adjusting cap of the present application;

[0053] Figure 5 Structure diagram of air flow stabilizing valve module of the present application;

[0054] Figure 6 Structure diagram of flow regulating valve module of the present application;

[0055] Figure 7 Structure diagram of air inlet port side of the present application;

[0056] Figure 8 Structure diagram of air outlet port side of the present application.

[0057] The reference signs are explained as follows:

[0058] 1 - valve body; 101 - pressure stabilizing structure cavity; 1011 - air inlet lower cavity; 1012 - pressure stabilizing upper cavity; 102 - flow stabilizing structure cavity; 103 - three-way connecting pipeline;

[0059] 2 - pressure regulating valve module; 201 - first valve seat; 202 - first valve cap; 203 - first valve core; 204 - first spring; 205 - adjusting cap; 2051 - adjusting bolt; 2052 - second spring; 2053 - metal rubber sheet; 2054 - spring pressing sheet;

[0060] 3 - air flow stabilizing valve module; 301 - second valve seat; 302 - second valve core; 303 - third spring;

[0061] 4 - flow regulating valve module; 401 - threaded body seat; 402 - adjusting assembly; 403 - inner hole snap spring;

[0062] 5 - pressure gauge; 6 - filter screen. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0064] Please refer to the drawings in the embodiments of the present application, Figures 1-8 One of the embodiments of the present application provides a gas pressure and flow stabilizing device, which comprises a valve body 1, a pressure regulating valve module 2, an air flow stabilizing valve module 3 and a flow regulating valve module 4.

[0065] The valve body 1 has a pressure stabilizing cavity 101 and a flow stabilizing cavity 102, and the pressure stabilizing cavity 101 and the flow stabilizing cavity 102 are communicated through a three-way connecting pipeline 103;

[0066] The pressure regulating valve module 2 is arranged in the pressure stabilizing cavity 101, and the pressure stabilizing cavity 101 is divided into an air inlet lower cavity 1011 and a pressure stabilizing upper cavity 1012, the air inlet lower cavity 1011 is communicated with the air inlet port A of the valve body 1, and the pressure regulating valve module 2 is configured to regulate the pressure of the gas delivered from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012;

[0067] The gas flow stabilizing valve module 3 is arranged in the flow stabilizing cavity 102, and the flow stabilizing cavity 102 is communicated with the air outlet port B of the valve body 1;

[0068] The flow regulating valve module 4 is arranged on the three-way connecting pipeline 103, and is configured to regulate the flow of the gas delivered to the flow stabilizing cavity 102.

[0069] In the embodiment, the pressure regulating valve module 2 regulates the pressure according to different pressure differences in the pipeline, automatically regulates the pressure of the gas delivered from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012, and can make the gas pressure and flow stabilizing device stably output the gas flow corresponding to the operation pressure; and the gas flow stabilizing valve module 3 and the flow regulating valve module 4 automatically regulate the flow of the gas delivered from the pressure stabilizing upper cavity 1012 to the flow stabilizing cavity 102, and can make the gas flow and the gas flow rate output by the gas pressure and flow stabilizing device stable in the interval corresponding to the operation demand; therefore, the present application can automatically regulate the gas pressure and flow in the pressure and flow stabilizing device under different pressures, so as to reduce the demand for gas during welding to the minimum, and at the same time, can ensure to meet the gas demand during welding.

[0070] In one embodiment of the present application, the pressure regulating valve module 2 comprises a first tooth holder 201, a first tooth cover 202, a first valve core 203, a first spring 204 and an adjusting tooth cover 205;

[0071] The first tooth holder 201 is fixed at the bottom of the air inlet lower cavity 1011, and a rubber ring groove is arranged at the top of the first tooth holder 201 for mounting a sealing ring;

[0072] The first tooth cover 202 is arranged between the air inlet lower cavity 1011 and the pressure stabilizing upper cavity 1012, a first air hole is arranged on the side of the first tooth cover 202, and a second air hole is arranged at the top of the first tooth cover 202 and communicated with the first air hole;

[0073] The first valve core 203 is arranged in the accommodating hole in the center of the first cover 202, the first valve core 203 is sleeved with the top of the first valve seat 201, the outer side of the first valve core 203 is provided with a sealing rubber layer, and the center of the first valve core 203 is provided with a vent pipe; and the top end of the first valve core 203 is semicircular.

[0074] The first spring 204 is arranged between the first valve core 203 and the first valve seat 201.

[0075] The adjusting cover 205 is fixedly arranged in the threaded hole at the top of the valve body 1, the bottom of the adjusting cover 205 abuts against the first valve core 203, and the adjusting cover 205 is used for realizing the pressure adjusting effect of the first valve core 203.

[0076] In the embodiment, the pressure regulating valve module 2 can be used to realize the pressure adjusting effect, and the automatic adjusting of the output pressure under different pressures can reduce the demand of the gas during welding to the minimum.

[0077] In one of the embodiments of the present application, the adjusting cover 205 further comprises an adjusting bolt 2051, a second spring 2052, a metal rubber sheet 2053 and a spring pressing sheet 2054.

[0078] The metal rubber sheet 2053 is arranged between the adjusting cover 205 and the threaded hole at the top of the valve body 1, the metal rubber sheet 2053 is used for sealing the threaded hole to form the pressure stabilizing upper cavity 1012, and the metal rubber sheet 2053 abuts against the top end of the first valve core 203.

[0079] The second spring 2052 is arranged at the top of the metal rubber sheet 2053, and the second spring 2052 is inlaid in the adjusting cover 205.

[0080] The adjusting bolt 2051 and the spring pressing sheet 2054 are arranged at the top of the adjusting cover 205, and are used for adjusting the elastic stroke of the second spring 2052.

[0081] In one of the embodiments of the present application, the airflow stabilizing valve module 3 comprises a second valve seat 301, a second valve core 302 and a third spring 303.

[0082] The second valve seat 301 is fixedly arranged at the bottom of the flow stabilizing structure cavity 102.

[0083] The second valve core 302 is arranged at the connection between the top of the flow stabilizing structure cavity 102 and the three-way connecting pipe 103.

[0084] The third spring 303 is arranged between the second valve seat 301 and the second valve core 302.

[0085] The top end of the second valve core 302 is semicircular.

[0086] In one embodiment of the present application, the flow regulating valve module 4 comprises a threaded seat 401, a regulating assembly 402, an inner hole snap spring 403,

[0087] The threaded seat 401 is arranged in a threaded hole at the top of the valve body 1, and the bottom of the threaded seat 401 is communicated to the three-way connecting pipeline 103, for controlling the flow of gas by the depth of the threaded seat 401.

[0088] The regulating assembly 402 is in transmission connection with the threaded seat 401, for adjusting and locking the current depth of the threaded seat 401.

[0089] The inner hole snap spring 403 is arranged in the threaded hole at the top of the valve body 1, for limiting the threaded seat 401.

[0090] In this embodiment, by arranging the regulating assembly 402, the current depth of the threaded seat 401 is adjusted and locked, so that the ventilation volume and pressure are consistent each time.

[0091] In one embodiment of the present application, the bottom of the threaded seat 401 is in the shape of a gradually narrowing cone.

[0092] And / or, a rubber ring groove is arranged on the outer side of the threaded seat 401 for mounting a sealing ring.

[0093] In this embodiment, the bottom of the threaded seat 401 is in the shape of a gradually narrowing cone, so that the ventilation volume and pressure are consistent each time by controlling the depth of the threaded seat 401; and the sealing performance of the device is good by arranging the sealing ring, basically eliminating the occurrence of leakage.

[0094] In one embodiment of the present application, the gas path formed by the pressure regulating valve module 2 at least comprises one of the following:

[0095] The sealing rubber layer on the outer side of the first valve core 203 abuts against the bottom of the first valve cover 202, the top of the first valve core 203 abuts against the first ventilation hole and the second ventilation hole, the first valve core 203 is in a sealing state, and the ventilation pipeline for conveying gas flow from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012 is closed.

[0096] Or, the sealing rubber layer outside the first valve core 203 is completely separated from the bottom of the first tooth cover 202, the top of the first valve core 203 is in abutment with the second air hole, the first valve core 203 is in a semi-open state, and the airflow is transported from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012 through the air hole pipeline arranged at the center of the first valve core 203 and the first air hole;

[0097] Or, the sealing rubber layer outside the first valve core 203 is completely separated from the bottom of the first tooth cover 202, the top of the first valve core 203 is not in abutment with the first air hole and the second air hole, the first valve core 203 is in a completely open state, and the airflow is transported from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012 through the first air hole and the second air hole.

[0098] In the embodiment, the first valve core 203 in the pressure regulating valve module 2 is linked with the second valve core 302 in the airflow stabilizing valve module 3, when the air outlet port B is opened and the gas flows outwards, the height position of the second valve core 302 is lowered and the air pressure in the flow stabilizing structure cavity 102 is lowered, when the pressure is lowered to a certain extent, the metal rubber sheet 2053 in the adjusting tooth cover 205 is pressed down to lower the height position of the first valve core 203, so that the first valve core 203 is in a semi-open or completely open state, the airflow is transported from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012, and the air ventilation function is realized; therefore, the present application can realize the regulation of the output pressure of the airflow, and at the same time, the first valve core 203 is in a sealed state when not started, so as to avoid the energy waste caused by the excessively high output pressure.

[0099] In one of the embodiments of the present application, the adjusting tooth cover 205 is formed in the threaded hole at the top of the valve body 1, and a pressure regulating cavity is formed in the adjusting tooth cover 205;

[0100] When the pressure in the pressure regulating cavity is greater than the pressure in the pressure stabilizing upper cavity 1012, the pressure regulating cavity is expanded, the height position of the first valve core 203 is lowered, so that the first valve core 203 is in a semi-open state or a completely open state;

[0101] Or, when the pressure in the pressure regulating cavity is less than the pressure in the pressure stabilizing upper cavity 1012, the pressure regulating cavity is contracted, the height position of the first valve core 203 is raised, so that the first valve core 203 is in a sealed state.

[0102] In the embodiment, the pressure regulating cavity is formed by the internal cavity of the adjusting tooth cover 205 and the metal rubber sheet 2053, and is supported by the second spring 2052 arranged in the pressure regulating cavity, so that the pressure regulating cavity has a long service life in a high pressure environment, and the metal part in the metal rubber sheet 2053 is adapted to the first valve core 203, so as to avoid the damage of the rubber part.

[0103] In one of the embodiments of the present application, a pressure gauge 5 is further arranged on the tee connection pipeline 103 to display the pressure of the gas output through the gas outlet port B.

[0104] And / or, a filter screen is further arranged between the gas outlet end of the gas inlet connector and the gas inlet port A of the valve body 1, which is used to filter the compressed gas delivered by the gas inlet connector.

[0105] In this embodiment, the pressure change of the output pressure is displayed through the pressure gauge 5, which facilitates the operator to observe the reading of the pressure gauge and adjust the pressure regulating valve module 2 in time; and the impurities in the compressed gas can be filtered through the filter screen, so as to avoid affecting the normal operation of the device and prolong the service life.

[0106] The gas pressure and flow stabilizing device has the following advantages:

[0107] 1. The adjusting tooth cover 205 in the pressure regulating valve module 2 is installed on the valve body 1 by means of threaded connection, and the initial size of the pressure regulating cavity can be simply and conveniently adjusted by adjusting the connection depth of the thread, which is convenient for the operator to operate and has low difficulty; and the current depth of the threaded body seat 401 is adjusted and locked through the adjusting assembly 402, so that the air volume and pressure are consistent each time; and multiple sealing rings are arranged in the pressure regulating valve module 2, the airflow stabilizing valve module 3 and the flow regulating valve module 4, so that the sealing performance of the device is good and leakage is basically eliminated.

[0108] In one of the embodiments of the present application, an industrial gas transmission system is provided, which comprises a gas supply device, a gas transmission pipeline and a gas pressure and flow stabilizing device.

[0109] The gas supply device is in communication with the gas transmission pipeline and is used to deliver compressed gas to the gas transmission pipeline.

[0110] A plurality of connection ports are sequentially arranged on the gas transmission pipeline, and the gas pressure and flow stabilizing device is arranged on the connection ports and is used to automatically balance the output pressure and output flow of the plurality of connection ports on the gas transmission pipeline.

[0111] Among them, the gas pressure and flow stabilizing device is any one of the gas pressure and flow stabilizing devices in the above-mentioned embodiments.

[0112] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields within the inventive concept of the present application are included in the patent protection scope of the present application.

Claims

1. A gas pressure and flow stabilizing device, characterized in that, It includes a valve body (1), a pressure regulating valve module (2), an airflow stabilizing valve module (3), and a flow regulating valve module (4); The valve body (1) has a pressure stabilizing structure cavity (101) and a flow stabilizing structure cavity (102) inside. The pressure stabilizing structure cavity (101) and the flow stabilizing structure cavity (102) are connected by a three-way connecting pipe (103). The pressure regulating valve module (2) is disposed inside the pressure stabilizing structure cavity (101), dividing the inside of the pressure stabilizing structure cavity (101) into a lower air inlet cavity (1011) and a pressure stabilizing upper cavity (1012). The lower air inlet cavity (1011) is connected to the air inlet port A of the valve body (1). The pressure regulating valve module (2) is configured to regulate the pressure of the gas delivered from the lower air inlet cavity (1011) to the pressure stabilizing upper cavity (1012). The airflow stabilizing valve module (3) is disposed in the flow stabilizing structure cavity (102), and the flow stabilizing structure cavity (102) is connected to the air outlet port B of the valve body (1); The flow regulating valve module (4) is installed on the three-way connecting pipe (103) and is used to regulate the flow rate of the gas delivered to the flow stabilizing structure cavity (102); The pressure regulating valve module (2) includes a first tooth seat (201), a first tooth cover (202), a first valve core (203), a first spring (204), and an adjusting tooth cover (205); The first tooth seat (201) is fixed to the bottom of the lower air intake chamber (1011), and a rubber ring groove is provided on the top of the first tooth seat (201) for installing a sealing ring; The first tooth cover (202) is disposed between the lower air intake chamber (1011) and the upper pressure stabilizing chamber (1012). The first tooth cover (202) has a first vent hole on its side and a second vent hole communicating with the first vent hole on its top. The first valve core (203) is slidably disposed along the receiving hole in the center of the first tooth cover (202), the first valve core (203) is slidably sleeved with the top of the first tooth seat (201), a sealing rubber layer is provided on the outside of the first valve core (203), a vent pipe is provided at the center of the first valve core (203), and the top of the first valve core (203) is semi-circular. The first spring (204) is disposed between the first valve core (203) and the first tooth seat (201); The adjusting tooth cover (205) is fixedly installed in the threaded hole at the top of the valve body (1). The bottom of the adjusting tooth cover (205) abuts against the first valve core (203). The adjusting tooth cover (205) is used to enable the first valve core (203) to regulate air pressure. The airflow stabilizing valve module (3) includes a second tooth seat (301), a second valve core (302), and a third spring (303); The second tooth holder (301) is fixedly disposed at the bottom of the flow stabilizing structure cavity (102); The second valve core (302) is slidably disposed at the connection between the top of the flow stabilizing structure cavity (102) and the three-way connecting pipe (103); The third spring (303) is disposed between the second tooth seat (301) and the second valve core (302); The top of the second valve core (302) is semi-circular.

2. The gas pressure and flow stabilizing device as described in claim 1, characterized in that, The adjusting tooth cover (205) also includes an adjusting bolt (2051), a second spring (2052), a metal rubber sheet (2053), and a spring pressure plate (2054); The metal rubber sheet (2053) is disposed between the adjusting tooth cover (205) and the threaded hole at the top of the valve body (1). The metal rubber sheet (2053) is used to seal the threaded hole to form the pressure stabilizing upper cavity (1012), and the metal rubber sheet (2053) abuts against the top of the first valve core (203). The second spring (2052) is disposed on the top of the metal rubber sheet (2053), and the second spring (2052) is embedded inside the adjusting tooth cover (205); The adjusting bolt (2051) and the spring pressure plate (2054) are disposed on the top of the adjusting tooth cover (205) for adjusting the elastic stroke of the second spring (2052).

3. The gas pressure and flow stabilizing device as described in claim 1, characterized in that, The flow regulating valve module (4) includes a threaded body seat (401), an regulating component (402), and an inner hole retaining ring (403). The threaded body seat (401) is provided in the threaded hole at the top of the valve body (1), and the bottom of the threaded body seat (401) is connected to the three-way connecting pipe (103) for controlling the gas flow rate by the depth of the threaded body seat (401). The adjustment component (402) is connected to the threaded body seat (401) for adjusting and locking the current depth of the threaded body seat (401); The inner hole retaining ring (403) is disposed in the threaded hole at the top of the valve body (1) to limit the threaded body seat (401).

4. The gas pressure and flow stabilizing device as described in claim 3, characterized in that, The bottom of the threaded body seat (401) is a gradually tapering cone shape; And / or, a rubber ring groove is provided on the outer side of the threaded body seat (401) for installing a sealing ring.

5. The gas pressure and flow stabilizing device according to any one of claims 1-4, characterized in that, The air path formed by the pressure regulating valve module (2) includes at least one of the following: The sealing rubber layer on the outside of the first valve core (203) abuts against the bottom of the first tooth cover (202), and the top of the first valve core (203) abuts against the first vent hole and the second vent hole. The first valve core (203) is in a sealed state, closing the airflow from the lower air inlet chamber (1011) to the upper pressure stabilizing chamber (1012). Alternatively, the sealing rubber layer on the outside of the first valve core (203) is completely separated from the bottom of the first tooth cover (202), the top of the first valve core (203) abuts against the second vent hole, the first valve core (203) is in a semi-open state, and the airflow is transported from the lower air intake chamber (1011) to the upper pressure stabilizing chamber (1012) through the vent pipe provided at the center of the first valve core (203) and the first vent hole. Alternatively, the sealing rubber layer on the outside of the first valve core (203) is completely separated from the bottom of the first tooth cover (202), the top of the first valve core (203) does not abut against the first vent and the second vent, the first valve core (203) is in a fully open state, and the airflow is transported from the lower air intake chamber (1011) to the upper pressure stabilizing chamber (1012) through the first vent and the second vent.

6. The gas pressure and flow stabilizing device as described in claim 5, characterized in that, The adjusting tooth cover (205) forms a pressure regulating cavity in the threaded hole at the top of the valve body (1); When the pressure in the pressure regulating cavity is greater than the pressure in the pressure stabilizing upper cavity (1012), the pressure regulating cavity expands, and the height position of the first valve core (203) decreases, so that the first valve core (203) is in a semi-open state or a fully open state. Alternatively, when the pressure in the pressure regulating cavity is less than the pressure in the pressure stabilizing upper cavity (1012), the pressure regulating cavity contracts, and the height of the first valve core (203) rises, so that the first valve core (203) is in a sealed state.

7. The gas pressure and flow stabilizing device as described in claim 6, characterized in that, It also includes a pressure gauge (5) which is installed on the three-way connecting pipe (103) to display the pressure of the gas output through the outlet port B; And / or, it also includes a filter screen (6), which is disposed between the outlet end of the air inlet connector and the air inlet port A of the valve body.

8. An industrial gas transmission system, characterized in that, This includes gas supply equipment, gas pipelines, and gas pressure and flow stabilization devices; The gas supply equipment is connected to the gas transmission pipeline and is used to deliver compressed gas to the gas transmission pipeline; The gas pipeline is provided with a number of connection ports in sequence, and the gas pressure and flow stabilizing device is installed at the connection ports to automatically balance the output pressure and output flow of the number of connection ports on the gas pipeline. The gas pressure stabilizing and flow stabilizing device is the gas pressure stabilizing and flow stabilizing device according to any one of claims 1-7.

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