Gas pressure reducing valve convenient to convert

Abstract

The utility model relates to the field of gas valves, in particular to a gas pressure reducing valve convenient to convert, which comprises a pressure reducing valve body, an electromagnetic valve, a gas inlet pipe and a gas outlet pipe, an air inlet chamber and an air outlet chamber are arranged in the pressure reducing valve body, the air inlet pipe is communicated with the air inlet chamber, and the air outlet pipe is communicated with the air outlet chamber; a plurality of vent holes are formed between the air inlet chamber and the air outlet chamber, and the two ends of each vent hole communicate with the air inlet chamber and the air outlet chamber correspondingly. The multiple electromagnetic valves are arranged on the pressure reducing valve body, correspond to the vent holes and are used for blocking or opening the ends, communicated with the air outlet chamber, of the corresponding vent holes. The problems that emission exceeds the standard, product consistency is weak, safety is low and power matching performance is poor due to gas switching can be solved.

Description

Technical Field

[0001] The present application relates to the field of gas valves, and in particular to a conveniently convertible gas pressure reducing valve. Background Art

[0002] The gas pressure reducing valve is installed on the angle valve of the liquefied gas cylinder, connecting the angle valve and the hose. It is an important gas equipment in the household gas appliance supporting the reduction and stabilization of the output pressure. It has the advantages of simple structure, stable pressure, light weight and easy adjustment and installation.

[0003] The current gas pressure reducing valve requires multiple control switches to switch between fuels. Too many switches will cause the gas path to become longer, which can easily lead to large differences in gas pressure, causing emissions to exceed standards. At the same time, adding too many switches will increase the variables that need to be controlled, making it difficult to ensure product consistency. In addition, there is a risk of gas leakage at the switch joints. The more switches there are, the greater the risk of gas leakage, and safety needs to be improved. Moreover, since different gases require different amounts of power, when the gas valve matches the power, due to the consistency of the power itself, when using different gases, the gas valve needs to be matched with the corresponding gas power, resulting in poor matching. For this reason, the present application proposes a convenient conversion gas pressure reducing valve. Utility Model Content

[0004] In order to improve the problems of excessive emissions, weak product consistency, low safety and poor power matching caused by gas switching, the present application provides a conveniently convertible gas pressure reducing valve.

[0005] The present application provides a portable gas pressure reducing valve that adopts the following technical solution:

[0006] A convenient conversion gas pressure reducing valve comprises a pressure reducing valve body, a solenoid valve, an air inlet pipe and an air outlet pipe;

[0007] An air inlet chamber and an air outlet chamber are provided in the pressure reducing valve body, the air inlet pipe is connected to the air inlet chamber, and the air outlet pipe is connected to the air outlet chamber; a plurality of air vents are opened between the air inlet chamber and the air outlet chamber, and the two ends of the air vents are connected to the air inlet chamber and the air outlet chamber respectively;

[0008] The solenoid valves are arranged on the pressure reducing valve body and are in multiple numbers. The solenoid valves are arranged corresponding to the vent holes and are used to block or open one end of the corresponding vent hole that is connected to the air outlet chamber.

[0009] By adopting the above technical solution, the gas pressure reducing valve of the present application is installed on the generator frame by bolts when in use. The corresponding number of solenoid valves and vents can be set according to the type of gas in actual conditions, and a switching switch can be set to control the gear position of the solenoid valve. Different gear positions control the opening and closing of different solenoid valves, as well as the closing of all solenoid valves.

[0010] During operation, gas enters the inlet pipe, passes through the inlet chamber, vents, and outlet chamber, and finally exits the outlet pipe. Each gas type is fed in directly, with a corresponding solenoid valve and vent. This reduces control variables and improves product consistency. Furthermore, since the vents are individually configured, the apertures can be pre-matched to adjust the flow rate required for different gases, eliminating the need to re-match the power level for each gas change, thus enhancing the compatibility of the gas valve.

[0011] The solenoid valve is used to control the opening and closing of the corresponding vent hole of the fuel, which improves the sealing reliability and integrates the switching and opening and closing functions into one. The gas switching and pressure reducing valve are designed in combination, eliminating the need to set up too many switches, effectively reducing the gas pipeline path, thereby reducing the gas pressure difference, reducing the phenomenon of excessive emissions, and improving the stability of the product. At the same time, it can reduce the number of switch joints in the gas pipeline, directly reducing the risk of leakage at the switch joints, making the product safer.

[0012] Optionally, a plurality of adjustment holes are provided on the pressure reducing valve body, and the adjustment holes are arranged corresponding to the vent holes. An adjustment column is movably provided in the adjustment hole, and the adjustment column can be moved to block the opening of the corresponding vent hole and adjust the cross-sectional area of ​​the vent hole opening.

[0013] By adopting the above technical solution, when performing engine power matching, different adjustment columns can be used to adjust the cross-sectional areas of different vents respectively, thereby achieving the purpose of fine-tuning the flow control, and the applicability is high.

[0014] Optionally, the adjusting column is threadedly connected to the adjusting hole.

[0015] By adopting the above technical solution, the activity of the column can be easily adjusted and the stability is high.

[0016] Optionally, the adjustment hole is connected to the air inlet chamber, and the adjustment column adjusts the cross-sectional area of ​​the vent hole opening at one end where the vent hole is connected to the air inlet chamber.

[0017] By adopting the above technical solution, the control of the vent by the regulating column and the solenoid valve is respectively located at the two ends of the vent, so that when the regulating column adjusts the flow size of the vent, it is not easy to interfere with the solenoid valve.

[0018] Optionally, the solenoid valve and the vent are arranged to be tilted in a direction away from the air inlet pipe, and the tilt angles of the solenoid valve and the vent are adapted to each other, and the air outlet pipe is arranged between the solenoid valve and the air inlet pipe.

[0019] By adopting the above technical solution, the installation space and field of view of the solenoid valve are wider, which facilitates the installation of the solenoid valve.

[0020] Optionally, a mounting port is provided on the pressure reducing valve body, the mounting port is connected to the air outlet chamber and is tilted in a direction away from the air inlet pipe. A cover plate is detachably provided at the mounting port, and the solenoid valve and the air outlet pipe are both installed on the cover plate.

[0021] By adopting the above technical solution, the solenoid valve and the air outlet pipe can be installed on the cover plate first, and then the cover plate is installed at the installation port, which facilitates the installation of the solenoid valve and the air outlet pipe on the pressure reducing valve body.

[0022] Optionally, the middle portion of the cover plate protrudes upward to form a mounting portion, both sides of the mounting portion are tapered toward the middle and the height gradually increases, and the solenoid valve and the air outlet pipe are respectively arranged on both sides of the mounting portion.

[0023] By adopting the above technical solution, the installation of the solenoid valve and the air outlet pipe is further facilitated, and the installation structure is made compact, which helps to save materials and installation space.

[0024] Optionally, the outlet pipe is tilted in a direction away from the inlet pipe, the inclination angle of the outlet pipe relative to the inlet pipe is a first angle, the inclination angle of the solenoid valve relative to the inlet pipe is a second angle, and the first angle is smaller than the second angle.

[0025] By adopting the above technical solution, the air outlet pipe is arranged at an angle, so that the pipe fitting connected to the air outlet pipe is connected smoothly with a small bending degree, thereby improving the service life of the connecting pipe fitting.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. Each type of gas corresponds to a solenoid valve and a vent, reducing control variables and improving product processing consistency;

[0028] 2. Different vent holes are set separately, and the hole sizes can be pre-matched to adjust the flow rate required by different gases and enhance the compatibility of the gas valve;

[0029] 3. The combined design of gas switching and pressure reducing valve eliminates the need to set up too many switches, effectively reducing the gas pipeline path, thereby reducing gas pressure differences, reducing excessive emissions, and improving product stability; at the same time, it can reduce the number of switch joints in the gas pipeline, directly reducing the risk of gas leakage at the switch joints, making the product safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a convertible gas pressure reducing valve according to an embodiment of the present application.

[0031] Figure 2This is a schematic diagram showing the structure of the interior of the pressure reducing valve body from an upward perspective according to an embodiment of the present application.

[0032] Figure 3 This is a structural diagram for displaying the installation port after the cover is hidden in an embodiment of the present application.

[0033] Figure 4 It is a schematic structural diagram for illustrating the cover plate in the embodiment of the present application.

[0034] Figure 5 It is a structural schematic diagram used to illustrate the adjustment column in the embodiment of the present application.

[0035] Explanation of the accompanying symbols: 1. Pressure reducing valve body; 11. Air inlet chamber; 12. Air outlet chamber; 13. Vent; 14. Adjustment column; 15. Mounting port; 16. Cover plate; 161. Mounting part; 2. Solenoid valve; 3. Air inlet pipe; 4. Air outlet pipe; 5. Adjustment hole. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] The embodiment of the present application discloses a convenient conversion gas pressure reducing valve. Figure 1-3 A convertible gas pressure reducing valve includes a pressure reducing valve body 1, a solenoid valve 2, an air inlet pipe 3, and an air outlet pipe 4. An air inlet chamber 11 and an air outlet chamber 12 are provided in the pressure reducing valve body 1. The air inlet pipe 3 is connected to the air inlet chamber 11, and the air outlet pipe 4 is connected to the air outlet chamber 12. A plurality of air vents 13 are provided between the air inlet chamber 11 and the air outlet chamber 12, and the two ends of the air vents 13 are connected to the air inlet chamber 11 and the air outlet chamber 12 respectively. There are multiple solenoid valves 2 provided on the pressure reducing valve body 1. The solenoid valves 2 are provided corresponding to the air vents 13. The solenoid valves 2 are used to block or open the end of the corresponding air vent 13 connected to the air outlet chamber 12.

[0038] The gas pressure reducing valve of the present application is bolted to the generator frame during use. Depending on the type of gas used, a corresponding number of solenoid valves 2 and air vents 13 can be installed. A toggle switch can also be provided to control the gear position of the solenoid valves 2. Different gear positions control the opening and closing of different solenoid valves 2, as well as the closing of all solenoid valves 2. In the embodiment of the present application, two solenoid valves 2 and two air vents 13 are provided, and the gas introduced is either CNG or LPG. There are three gear positions: Gear 1 opens one solenoid valve 2, connecting CNG gas; Gear 2 opens the other solenoid valve 2, connecting LPG gas; and Gear 3 closes both solenoid valves 2.

[0039] During use, the designated gas enters through the inlet pipe 3, passes through the inlet chamber 11, the vent 13, and the outlet chamber 12, and finally exits through the outlet pipe 4. The required gas is fed in, with each gas corresponding to a solenoid valve 2 and a vent 13. This reduces control variables and improves product consistency. Furthermore, since the different vents 13 are individually configured, the aperture sizes can be pre-matched to adjust the required flow rate for different gases, eliminating the need to re-match the power level for each gas change, thus enhancing the adaptability of the gas valve.

[0040] The solenoid valve 2 is used to control the on / off of the corresponding vent hole 13 of the fuel, thereby improving the sealing reliability and integrating the switching and on / off functions into one. The gas switching and pressure reducing valve are designed in combination, eliminating the need to set up too many switches, effectively reducing the gas pipeline path, thereby reducing the gas pressure difference, reducing the phenomenon of excessive emissions, and improving the stability of the product. At the same time, it can reduce the number of switch joints in the gas pipeline, directly reducing the risk of leakage at the switch joints, and making the product safer.

[0041] Reference Figure 1-5 The pressure reducing valve body 1 is provided with a plurality of adjustment holes 5. In the embodiment of the present application, two adjustment holes 5 are provided and are arranged corresponding to the vent holes 13. An adjustment column 14 is movably provided in the adjustment hole 5. The adjustment column 14 can be moved to block the opening of the corresponding vent hole 13 and adjust the cross-sectional area of ​​the opening of the vent hole 13. When performing engine power matching, different adjustment columns 14 can be used to adjust the cross-sectional areas of different vent holes 13 respectively, thereby achieving the purpose of fine-tuning the flow rate, and the applicability is high. In the embodiment of the present application, the adjustment column 14 adopts a stud, and the adjustment column 14 is threadedly connected to the adjustment hole 5, which facilitates the movement of the adjustment column 14 and has high stability.

[0042] Reference Figure 1-3 The regulating hole 5 is connected to the air inlet chamber 11, and the regulating column 14 adjusts the cross-sectional area of ​​the opening of the vent hole 13 at the end where the vent hole 13 connects to the air inlet chamber 11. The regulating column 14 and the solenoid valve 2 that control the vent hole 13 are located at both ends of the vent hole 13, making it difficult for the regulating column 14 to interfere with the solenoid valve 2 when adjusting the flow rate of the vent hole 13.

[0043] Reference Figure 1-4The solenoid valve 2 and the vent hole 13 are tilted in a direction away from the air inlet pipe 3, and the tilt angles of the solenoid valve 2 and the vent hole 13 are adapted to each other. The air outlet pipe 4 is arranged between the solenoid valve 2 and the air inlet pipe 3, so that the installation space and field of view of the solenoid valve 2 are wider, which facilitates the installation of the solenoid valve 2. A mounting port 15 is provided on the pressure reducing valve body 1. The mounting port 15 is communicated with the air outlet chamber 12 and is tilted in a direction away from the air inlet pipe 3. A cover plate 16 is detachably provided at the mounting port 15 by bolts. The solenoid valve 2 and the air outlet pipe 4 are both mounted on the cover plate 16. The solenoid valve 2 and the air outlet pipe 4 can be installed on the cover plate 16 first, and then the cover plate 16 can be installed at the mounting port 15, so that the solenoid valve 2 and the air outlet pipe 4 can be easily installed on the pressure reducing valve body 1.

[0044] Reference Figure 2 and Figure 4 The middle part of the cover plate 16 protrudes upward to form a triangular prism-shaped mounting portion 161. The two sides of the mounting portion 161 are tapered toward the middle and gradually increase in height. The solenoid valve 2 and the air outlet pipe 4 are respectively arranged on both sides of the mounting portion 161, which further facilitates the installation of the solenoid valve 2 and the air outlet pipe 4, and makes the installation structure compact, which helps save materials and installation space. The air outlet pipe 4 is tilted in the direction away from the air inlet pipe 3. The inclination angle of the air outlet pipe 4 relative to the air inlet pipe 3 is a first angle, and the inclination angle of the solenoid valve 2 relative to the air inlet pipe 3 is a second angle, and the first angle is smaller than the second angle. The tilted arrangement of the air outlet pipe 4 ensures that the pipe fittings docked with the air outlet pipe 4 are connected smoothly and with a small degree of bending, thereby increasing the service life of the docking pipe fittings.

[0045] The operating principle of the portable gas pressure reducing valve according to the embodiment of the present application is as follows: when in use, the gas is introduced from the inlet pipe 3, passes through the inlet chamber 11, the vent 13, and the outlet chamber 12 in sequence, and finally discharged from the outlet pipe 4. The gas required is introduced, and each gas corresponds to a solenoid valve 2 and a vent 13, which reduces the control variables and improves the consistency of product processing. In addition, because the different vents 13 are separately provided, the aperture size can be pre-matched to adjust the flow rate required by different gases, without having to re-match the appropriate power size each time a gas is changed, thereby enhancing the compatibility of the gas valve.

[0046] The solenoid valve 2 is used to control the on / off of the corresponding vent hole 13 of the fuel, thereby improving the sealing reliability and integrating the switching and on / off functions into one. The gas switching and pressure reducing valve are designed in combination, eliminating the need to set up too many switches, effectively reducing the gas pipeline path, thereby reducing the gas pressure difference, reducing the phenomenon of excessive emissions, and improving the stability of the product. At the same time, it can reduce the number of switch joints in the gas pipeline, directly reducing the risk of leakage at the switch joints, and making the product safer.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A portable gas pressure reducing valve, comprising a pressure reducing valve body (1), characterized in that: It also includes a solenoid valve (2), an air inlet pipe (3) and an air outlet pipe (4); An air inlet chamber (11) and an air outlet chamber (12) are provided in the pressure reducing valve body (1), the air inlet pipe (3) is in communication with the air inlet chamber (11), and the air outlet pipe (4) is in communication with the air outlet chamber (12); a plurality of air vents (13) are provided between the air inlet chamber (11) and the air outlet chamber (12), and two ends of the air vents (13) are in communication with the air inlet chamber (11) and the air outlet chamber (12) respectively; The solenoid valve (2) is arranged on the pressure reducing valve body (1) and is in multiple numbers. The solenoid valve (2) is arranged corresponding to the vent hole (13). The solenoid valve (2) is used to block or open one end of the corresponding vent hole (13) that is connected to the air outlet chamber (12).

2. The portable gas pressure reducing valve according to claim 1, characterized in that: The pressure reducing valve body (1) is provided with a plurality of adjustment holes (5), the adjustment holes (5) being arranged corresponding to the vent holes (13), an adjustment column (14) being movably arranged in the adjustment holes (5), the adjustment column (14) being movable to block the opening of the corresponding vent hole (13) and adjusting the cross-sectional area of ​​the opening of the vent hole (13).

3. The portable gas pressure reducing valve according to claim 2 is characterized in that: The adjusting column (14) is threadedly connected in the adjusting hole (5).

4. A portable conversion gas pressure reducing valve according to claim 2 or 3, characterized in that: The adjustment hole (5) is in communication with the air inlet chamber (11), and the adjustment column (14) is used to adjust the cross-sectional area of ​​the opening of the air vent (13) at one end where the air vent (13) is in communication with the air inlet chamber (11).

5. A portable gas pressure reducing valve according to any one of claims 1 to 3, characterized in that: The solenoid valve (2) and the vent hole (13) are arranged to be inclined in a direction away from the air inlet pipe (3), and the inclination angles of the solenoid valve (2) and the vent hole (13) are adapted to each other. The air outlet pipe (4) is arranged between the solenoid valve (2) and the air inlet pipe (3).

6. The portable conversion gas pressure reducing valve according to claim 5, characterized in that: The pressure reducing valve body (1) is provided with a mounting opening (15), the mounting opening (15) being in communication with the air outlet chamber (12) and being arranged in an inclined manner in a direction away from the air inlet pipe (3), and a cover plate (16) being detachably provided at the mounting opening (15), and the solenoid valve (2) and the air outlet pipe (4) are both mounted on the cover plate (16).

7. The portable conversion gas pressure reducing valve according to claim 6, characterized in that: The middle part of the cover plate (16) protrudes upward to form a mounting portion (161), and the two sides of the mounting portion (161) are gradually tapered toward the middle and the height gradually increases. The solenoid valve (2) and the air outlet pipe (4) are respectively arranged on the two sides of the mounting portion (161).

8. A portable conversion gas pressure reducing valve according to claim 6 or 7, characterized in that: The outlet pipe (4) is arranged to be inclined in a direction away from the inlet pipe (3); the inclination angle of the outlet pipe (4) relative to the inlet pipe (3) is a first angle; the inclination angle of the solenoid valve (2) relative to the inlet pipe (3) is a second angle; the first angle is smaller than the second angle.

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