Gas pressure regulator

Abstract

The utility model relates to the technical field of pressure regulators, in particular to a fuel gas pressure regulator which comprises a fuel gas pressure regulator body and a pressure relief pipe fixedly connected to the fuel gas pressure regulator body, a gas inlet pipe and a gas outlet pipe are fixedly connected to the two sides of the fuel gas pressure regulator body respectively, pressure gauges are arranged on the gas inlet pipe and the gas outlet pipe respectively, and the pressure relief pipe is fixedly connected with the fuel gas pressure regulator body. A transverse pipe is fixedly connected to the end of the pressure relief pipe, a gas sensor is arranged in the transverse pipe, a compression pump is arranged on the transverse pipe, an air return pipe is fixedly connected to the end of the transverse pipe, the bottom end of the air return pipe is fixedly connected with the air inlet pipe, a storage pipe is arranged on the air return pipe, and a switch valve is arranged at the position, below the storage pipe, of the air return pipe. According to the fuel gas pressure regulator, fuel gas released by the fuel gas pressure regulator body can be safely and effectively compressed and stored, the stored fuel gas can be conveyed to a pipeline again when the fuel gas supply pressure is reduced, the overall fuel gas utilization rate is increased, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure regulator technical field, especially relate to a gas pressure regulator. BACKGROUND

[0002] The gas pressure regulator is a device for reducing high-pressure gas to a low-pressure level suitable for industrial or domestic gas equipment, which senses and adjusts the gas pressure through internal mechanical structure or electronic control system to ensure the safety and stability of gas supply.

[0003] In the existing gas pressure regulator technology, when the gas pressure regulator faces the situation of continuous increase of internal gas pressure, the pressure relief port is automatically opened for pressure relief to ensure safe operation of the pressure regulator, but the relieved gas is often directly discharged to the external environment, which not only may cause safety hazards, but also causes loss of gas, and needs to be improved, therefore, a gas pressure regulator is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a gas pressure regulator to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas pressure regulator, comprising a gas pressure regulator body and a pressure relief pipe fixedly connected to the gas pressure regulator body, gas inlet pipes and gas outlet pipes are fixedly connected to the two sides of the gas pressure regulator body, pressure gauges are arranged on the gas inlet pipes and the gas outlet pipes, a cross pipe is fixedly connected to the end of the pressure relief pipe, a gas sensor is arranged in the cross pipe, a compression pump is arranged on the cross pipe, a gas return pipe is fixedly connected to the end of the cross pipe, the bottom end of the gas return pipe is fixedly connected to the gas inlet pipe, a storage pipe is arranged on the gas return pipe, and a switch valve is arranged below the storage pipe.

[0006] As a further description of the above-mentioned scheme: through the cooperation between the gas pressure regulator body, the pressure relief pipe, the gas inlet pipe, the gas outlet pipe, the pressure gauge, the cross pipe, the gas sensor, the compression pump, the gas return pipe, the storage pipe and the switch valve, the relieved gas from the gas pressure regulator body can be safely and effectively compressed and stored, and the stored gas can be re-delivered to the pipeline when the gas supply pressure decreases, which improves the overall gas utilization rate and has high practicability.

[0007] Preferably, a one-way valve is arranged on the cross pipe and between the gas return pipe and the compression pump.

[0008] As a further description of the above-mentioned scheme: a one-way valve is arranged on the cross pipe and between the gas return pipe and the compression pump, which can effectively prevent the phenomenon of backflow after gas compression.

[0009] Preferably, the pressure relief pipe is fixedly connected with the end of the horizontal pipe through a flange.

[0010] As a further description of the above scheme: the pressure relief pipe is fixedly connected with the end of the horizontal pipe through a flange, which can improve the stability and sealing performance of the pressure relief pipe after being fixedly connected with the horizontal pipe.

[0011] Preferably, a sealing ring is sleeved on the two groups of flanges, the sealing ring is matched with the size of the flange, and a damping is arranged between the sealing ring and the flange.

[0012] As a further description of the above scheme: a sealing ring is sleeved on the two groups of flanges, the sealing ring is matched with the size of the flange, and a damping is arranged between the sealing ring and the flange, which can improve the sealing performance of the connection between the two groups of flanges, and further improve the sealing performance of the pressure relief pipe after being fixedly connected with the horizontal pipe.

[0013] Preferably, a gas concentration sensor is arranged in the storage pipe.

[0014] As a further description of the above scheme: a gas concentration sensor is arranged in the storage pipe, which is used for detecting the gas concentration content in the storage pipe, and the gas needs to be discharged when the gas concentration content is too high.

[0015] Preferably, a controller is arranged on the gas pressure regulator body, and the controller is electrically connected with the pressure gauge, the gas sensor, the compression pump, the on-off valve and the gas concentration.

[0016] As a further description of the above scheme: a controller is arranged on the gas pressure regulator body, which can automatically control each element of the device.

[0017] Compared with the prior art, the beneficial effects of the utility model are: through the cooperation between the gas pressure regulator body, the pressure relief pipe, the gas inlet pipe, the gas outlet pipe, the pressure gauge, the horizontal pipe, the gas sensor, the compression pump, the gas return pipe, the storage pipe and the on-off valve, not only the gas discharged by the gas pressure regulator body can be safely and effectively compressed and stored, but also the stored gas can be re-delivered to the pipeline when the gas supply pressure is reduced, the overall gas utilization rate is improved, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is a side view of the pressure relief pipe, the horizontal pipe, the gas return pipe and the storage pipe of the utility model;

[0021] Figure 4The utility model discloses a pressure relief pipe and horizontal pipe structure diagram for the utility model,

[0022] Figure 5 The utility model discloses a horizontal pipe and gas sensor structure diagram for the utility model.

[0023] Legend:

[0024] 1, gas pressure regulator body, 2, pressure relief pipe, 3, inlet pipe, 4, outlet pipe, 5, pressure gauge, 6, horizontal pipe, 7, gas sensor, 8, compression pump, 9, back gas pipe, 10, storage pipe, 11, on-off valve, 12, check valve, 13, flange, 14, sealing ring. Specific implementation

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of the utility model protection.

[0026] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0027] A kind of gas pressure regulator, including gas pressure regulator body 1 and the pressure relief pipe 2 of fixed connection in gas pressure regulator body 1, the gas pressure regulator body 1 both sides are respectively fixed connection with inlet pipe 3 and outlet pipe 4, the inlet pipe 3 and outlet pipe 4 are all provided with pressure gauge 5, the pressure relief pipe 2 end is fixedly connected with horizontal pipe 6, the horizontal pipe 6 is provided with gas sensor 7, the horizontal pipe 6 is provided with compression pump 8, the horizontal pipe 6 end is fixedly connected with back gas pipe 9, the back gas pipe 9 bottom end is fixedly connected with inlet pipe 3, the back gas pipe 9 is provided with storage pipe 10, the back gas pipe 9 is located and is provided with on-off valve 11 below storage pipe 10.

[0028] When using, gas is transported to gas pressure regulator body 1 by inlet pipe 3, after accurate pressure regulating of gas pressure regulator body 1, the gas meeting pressure requirement is safely transported by outlet pipe 4, and the pressure gauge 5 respectively arranged on inlet pipe 3 and outlet pipe 4 monitors the gas pressure of inlet and outlet in real time;

[0029] When the pressure in gas pressure regulator body 1 is abnormally increased to reach preset threshold value, pressure relief pipe 2 is automatically opened, and excess gas is automatically discharged into horizontal pipe 6, after the gas sensor 7 in horizontal pipe 6 detects gas, compression pump 8 is started, and the gas in horizontal pipe 6 is compressed, and the compressed gas enters back gas pipe 9 along horizontal pipe 6, and storage pipe 10 on back gas pipe 9 stores the compressed gas;

[0030] When the gas supply pressure in the intake pipe 3 decreases, the switch valve 11 of the return pipe 9 located below the storage pipe 10 is opened, and the gas in the storage pipe 10 will be transported back to the intake pipe 3 through the return pipe 9.

[0031] This gas pressure regulator can not only safely and effectively compress and store the gas released from the gas pressure regulator body 1, but also can re-transport the stored gas to the pipeline when the gas supply pressure decreases, thereby improving the overall gas utilization rate and making it highly practical.

[0032] A one-way valve 12 is provided on the horizontal pipe 6, and the one-way valve 12 is located between the return pipe 9 and the compressor pump 8;

[0033] During the process of the compressor pump 8 compressing the gas in the horizontal pipe 6, the one-way valve 12 is installed between the return pipe 9 and the compressor pump 8 in the horizontal pipe 6, so that the gas can only flow from the compressor pump 8 to the return pipe 9. After the gas is compressed, it can effectively prevent the gas from flowing back along the horizontal pipe 6 to the part before the compressor pump 8, thus ensuring the one-wayness and stability of the gas return.

[0034] The pressure relief pipe 2 is fixedly connected to the end of the horizontal pipe 6 via flange 13;

[0035] The pressure relief pipe 2 and the horizontal pipe 6 are fixedly connected by flange 13. The flange 13 connection makes the connection between the two more stable. During the pressure relief process, it can withstand a certain pressure without loosening, ensuring the stability of the connection between the pressure relief pipe 2 and the horizontal pipe 6. At the same time, it can also effectively seal the connection between the two to prevent gas leakage at the connection and improve the sealing performance of the connection.

[0036] Both sets of flanges 13 are fitted with a sealing ring 14, the size of the sealing ring 14 is adapted to the size of the flange 13, and a damping is provided between the sealing ring 14 and the flange 13;

[0037] Both flanges 13 are fitted with a matching sealing ring 14 that provides damping between them. When the flanges 13 are tightly connected, the sealing ring 14 fits tightly against the connection between the two flanges 13 under the action of damping, filling any small gaps that may exist in the connection between the flanges 13, preventing gas from leaking from the connection, thereby improving the sealing performance of the connection between the two flanges 13, and further improving the sealing performance of the pressure relief pipe 2 and the horizontal pipe 6 after installation and fixation.

[0038] A gas concentration sensor is installed inside the storage tube 10;

[0039] When the gas is stored into the storage pipe 10 through the return pipe 9, the gas concentration sensor in the storage pipe 10 can detect the gas concentration content in the pipe in real time. When the gas concentration sensor detects that the gas concentration in the storage pipe 10 is too high, it means that the pressure and other conditions in the storage pipe 10 may exceed the safety range, at this time, the gas needs to be discharged to ensure the safe operation of the storage pipe 10.

[0040] The controller is electrically connected with the pressure gauge 5, the gas sensor 7, the compression pump 8, the switch valve 11 and the gas concentration sensor.

[0041] The controller is arranged on the gas pressure regulator body 1 and can automatically control each element of the device.

[0042] Working principle:

[0043] In use, the gas is transported into the gas pressure regulator body 1 through the gas inlet pipe 3, and after accurate pressure regulation of the gas pressure regulator body 1, the gas meeting the pressure requirement is safely transported through the gas outlet pipe 4. The pressure gauges 5 arranged on the gas inlet pipe 3 and the gas outlet pipe 4 respectively monitor the gas pressure of the inlet and outlet in real time.

[0044] When the pressure in the gas pressure regulator body 1 abnormally rises to a preset threshold value, the pressure relief pipe 2 is automatically opened, and the excess gas is automatically discharged into the horizontal pipe 6. After the gas sensor 7 in the horizontal pipe 6 detects the gas, the compression pump 8 is started to compress the gas in the horizontal pipe 6. The compressed gas enters the return pipe 9 along the horizontal pipe 6, and the storage pipe 10 on the return pipe 9 stores the compressed gas.

[0045] When the gas supply pressure of the gas inlet pipe 3 decreases, the switch valve 11 located below the storage pipe 10 of the return pipe 9 is opened, and the gas in the storage pipe 10 is retransported to the gas inlet pipe 3 through the return pipe 9.

[0046] The gas pressure regulator can not only safely and effectively compress and store the gas discharged from the gas pressure regulator body 1, but also can retransport the stored gas to the pipeline when the gas supply pressure decreases, thereby improving the overall gas utilization rate and having high practicality.

[0047] Among them,

[0048] During the compression of the gas in the horizontal pipe 6 by the compression pump 8, the one-way valve 12 is arranged between the horizontal pipe 6 and the compression pump 8 of the return pipe 9, so that the gas can only flow from the compression pump 8 to the return pipe 9. After the gas is compressed, it can effectively prevent the gas from flowing back to the part before the compression pump 8 along the horizontal pipe 6 in the opposite direction, thereby ensuring the one-way and stability of the gas backflow.

[0049] The pressure relief pipe 2 is fixedly connected with the end of the horizontal pipe 6 through the flanges 13, the flanges 13 are connected in a way that makes the connection between the two more stable, can withstand a certain pressure without loosening during pressure relief, ensures the stability of the connection between the pressure relief pipe 2 and the horizontal pipe 6, at the same time, can effectively seal the connection between the two, prevent gas from leaking at the connection part, and improve the sealing of the connection;

[0050] The two groups of flanges 13 are commonly sleeved with sealing rings 14 which are of suitable size and have damping between the flanges 13, when the flanges 13 are connected tightly, the sealing rings 14 are tightly fitted at the connection between the two groups of flanges 13 under the action of damping, fill the possible small gaps in the connection of the flanges 13, prevent gas from leaking from the connection, thereby improving the sealing of the connection between the two groups of flanges 13, and further improving the sealing of the pressure relief pipe 2 and the horizontal pipe 6 after installation and fixation;

[0051] When the gas is stored into the storage pipe 10 through the gas return pipe 9, the gas concentration sensor in the storage pipe 10 detects the gas concentration content in the pipe in real time, as the gas is continuously stored, when the gas concentration sensor detects that the gas concentration in the storage pipe 10 is too high, it means that the pressure and other conditions in the storage pipe 10 may exceed the safe range, at this time, the gas needs to be discharged to ensure the safe operation of the storage pipe 10.

[0052] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A gas pressure regulator comprising a gas pressure regulator body (1) and a pressure relief pipe (2) fixedly connected to the gas pressure regulator body (1), characterized in that The gas pressure regulator body (1) is fixedly connected with an air inlet pipe (3) and an air outlet pipe (4) on both sides, a pressure gauge (5) is arranged on the air inlet pipe (3) and the air outlet pipe (4), a relief pipe (2) is fixedly connected with a cross pipe (6), a gas sensor (7) is arranged in the cross pipe (6), a compression pump (8) is arranged on the cross pipe (6), the cross pipe (6) is fixedly connected with a gas return pipe (9), the bottom end of the gas return pipe (9) is fixedly connected with the air inlet pipe (3), a storage pipe (10) is arranged on the gas return pipe (9), and a switch valve (11) is arranged below the storage pipe (10).

2. A gas pressure regulator according to claim 1, characterised in that A one-way valve (12) is arranged on the cross pipe (6), and the one-way valve (12) is arranged between the gas return pipe (9) and the compression pump (8).

3. A gas pressure regulator according to claim 1, wherein The end of the relief pipe (2) and the cross pipe (6) are fixedly connected through a flange (13).

4. A gas pressure regulator according to claim 3, wherein Sealing rings (14) are sleeved on the two groups of flanges (13), the sealing rings (14) are matched with the sizes of the flanges (13), and dampings are arranged between the sealing rings (14) and the flanges (13).

5. A gas pressure regulator according to claim 1, wherein A gas concentration sensor is arranged in the storage pipe (10).

6. A gas pressure regulator according to claim 1, wherein A controller is arranged on the gas pressure regulator body (1), and the controller is electrically connected with the pressure gauges (5), the gas sensor (7), the compression pump (8), the switch valve (11) and the gas concentration sensor.

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