Automatic pressure regulating valve of gas pipe network

Abstract

The utility model relates to the technical field of gas pipe networks, and discloses an automatic pressure regulating valve for a gas pipe network, which comprises a regulating valve body, a spring control device and two groups of connecting pipes, a temporary air storage tank is installed on one side of the outer wall of the adjusting valve body and communicated with an air inlet pipe and an exhaust pipe, the air inlet pipe is communicated with the air inlet end of the adjusting valve body, the exhaust pipe is communicated with the exhaust end of the adjusting valve body, and a sealing valve is connected between the exhaust pipe and the temporary air storage tank. A pressure monitor is installed at the bottom of the temporary gas storage tank, and a controller is installed on the outer wall of the temporary gas storage tank. Compared with the prior art, the adjusting valve has the advantages that the temporary air storage tank is additionally arranged on one side of the adjusting valve body, air pressure can be divided and collected when the air inlet pressure is too large, and the pressure sensing device in the adjusting valve body is matched with the pressure monitor at the bottom of the temporary air storage tank; and gas in the temporary gas storage tank is collected and released according to the gas inlet pressure, so that the pressure fluctuation in the gas pipeline is quickly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, specifically to an automatic pressure regulating valve for gas pipelines. Background Technology

[0002] Gas pipeline network refers to the system consisting of all facilities from the gate station to the user, including the gate station or gas source plant compressor station, gas storage facilities, pressure regulating devices, transmission and distribution pipelines, metering devices, management facilities, monitoring systems, etc.

[0003] Automatic pressure regulating valves are used to ensure the stability and safety of gas supply. By automatically adjusting the pressure in gas pipelines, they prevent safety hazards and equipment damage caused by pressure fluctuations. They are widely used in household gas supply, industrial gas pipelines, and gas equipment.

[0004] Existing automatic pressure regulating valves mainly consist of the following key components: a pressure sensing device, a spring control device, and a regulating valve. When the inlet pressure is high, the spring control device controls the regulating valve to adjust the flow rate and achieve automatic pressure regulation. However, when an abnormality occurs in the upstream pipeline, it can easily cause the downstream pipeline to experience excessively high or low inlet pressure. The regulating valve cannot adjust quickly, resulting in pressure fluctuations in the gas pipeline and preventing a sustained and smooth pressure in the gas pipeline.

[0005] To address the aforementioned technical problems, this application proposes an automatic pressure regulating valve for gas pipeline networks. Utility Model Content

[0006] I. Technical problems to be solved

[0007] The technical problem this invention aims to solve is that when an abnormality occurs in the front-end pipeline, it can easily cause excessive or insufficient intake pressure in the rear-end pipeline. The regulating valve cannot adjust quickly, resulting in pressure fluctuations in the gas pipeline and preventing the pressure in the gas pipeline from becoming consistently stable.

[0008] II. Technical Solution

[0009] To solve the above technical problems, the technical solution provided by this utility model is: an automatic pressure regulating valve for gas pipeline network, including a regulating valve body, a spring control device and two sets of connecting pipes, wherein the connecting pipes are installed at both ends of the regulating valve body, the spring control device is installed above the regulating valve body, and a pressure sensing device is installed inside the regulating valve body;

[0010] A temporary air storage tank is installed on one side of the outer wall of the regulating valve body. An air inlet pipe and an air outlet pipe are connected to the temporary air storage tank. The air inlet pipe is connected to the air inlet end of the regulating valve body, and the air outlet pipe is connected to the air outlet end of the regulating valve body. A sealing valve is connected between the air outlet pipe and the temporary air storage tank.

[0011] A pressure monitor is installed at the bottom of the temporary gas storage tank, and a controller is installed on the outer wall of the temporary gas storage tank.

[0012] As an improvement, one-way valves are installed on the intake pipe and the exhaust pipe respectively. The one-way valves are installed at the intake end and the exhaust end of the regulating valve body, respectively connecting the intake pipe and the exhaust pipe to the regulating valve body.

[0013] As an improvement, the spring control device, sealing valve, and pressure monitor are each connected to the controller via wires.

[0014] As an improvement, a control chip and a touch screen are installed inside the controller housing.

[0015] As an improvement, an installation block is installed on one side of the outer wall of the regulating valve body, and a connector is installed on the outside of the temporary gas storage tank. The connector is fixedly connected to the installation block by multiple sets of bolts.

[0016] As an improvement, a connecting flange is installed at the port of the connecting pipe.

[0017] III. Beneficial Effects

[0018] The advantages of this utility model compared with the prior art are as follows: by adding a temporary gas storage tank on one side of the regulating valve body, the gas pressure can be diverted and collected when the inlet pressure is too high. By cooperating with the pressure sensing device inside the regulating valve body and the pressure monitor at the bottom of the temporary gas storage tank, the gas inside the temporary gas storage tank can be released and released according to the inlet pressure, thereby quickly regulating the pressure fluctuation in the gas pipeline and preventing pressure fluctuations from causing safety hazards and equipment damage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the upper structure of an automatic pressure regulating valve for gas pipelines according to this utility model.

[0020] Figure 2 This is a schematic diagram of the lower structure of an automatic pressure regulating valve for gas pipelines according to this utility model.

[0021] Figure 3 This is a schematic diagram of the front structure of the temporary gas storage tank of an automatic pressure regulating valve for a gas pipeline network according to this utility model.

[0022] Figure 4 This is a schematic diagram of the rear structure of a temporary gas storage tank for an automatic pressure regulating valve for a gas pipeline network according to this utility model.

[0023] Figure 5 This is a schematic diagram of the control method for an automatic pressure regulating valve in a gas pipeline network according to this utility model.

[0024] As shown in the figure: 1. Regulating valve body; 2. Spring control device; 3. Connecting pipe; 4. Connecting flange; 5. Temporary air storage tank; 6. Air inlet pipe; 7. Exhaust pipe; 8. Sealing valve; 9. Pressure monitor; 10. Controller; 11. Check valve; 12. Mounting block; 13. Connecting parts. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] As attached Figure 1 and attached Figure 3 As shown, an automatic pressure regulating valve for a gas pipeline includes a regulating valve body 1, a spring control device 2, and two sets of connecting pipes 3. The connecting pipes 3 are installed at both ends of the regulating valve body 1, and the ends of the connecting pipes 3 are fitted with connecting flanges 4 for connection to the gas conduit. The spring control device 2 is installed above the regulating valve body 1. A pressure sensing device is installed inside the regulating valve body 1. A temporary gas storage tank 5 is installed on one side of the outer wall of the regulating valve body 1. An installation block 12 is installed on one side of the outer wall of the regulating valve body 1. A connector 13 is installed on the outside of the temporary gas storage tank 5. The connector 13 is fixedly connected to the installation block 12 by multiple sets of bolts to ensure that the temporary gas storage tank 5 is stably installed on one side of the regulating valve body 1.

[0027] As attached Figure 1 and attached Figure 4 As shown, the temporary gas storage tank 5 is connected to an inlet pipe 6 and an exhaust pipe 7. The inlet pipe 6 is connected to the inlet end of the regulating valve body 1, and the exhaust pipe 7 is connected to the exhaust end of the regulating valve body 1. One-way valves 11 are installed on the inlet pipe 6 and the exhaust pipe 7, respectively. The one-way valves 11 are installed at the inlet end and the exhaust end of the regulating valve body 1, respectively, connecting the inlet pipe 6 and the exhaust pipe 7 to the regulating valve body 1, so that the air at the inlet end of the regulating valve body 1 can be sent into the inlet pipe 6, and the air at the exhaust end of the regulating valve body 1 will not flow back into the exhaust pipe 7. A sealing valve 8 is connected between the exhaust pipe 7 and the temporary gas storage tank 5 to block the inlet pipe 6 and the exhaust pipe 7.

[0028] As attached Figure 2 and attached Figure 5 As shown, a pressure monitor 9 is installed at the bottom of the temporary gas storage tank 5, and a controller 10 is installed on the outer wall of the temporary gas storage tank 5. The spring control device 2, the sealing valve 8, and the pressure monitor 9 are respectively connected to the controller 10 through wires. A control chip and a touch screen are installed inside the housing of the controller 10. The touch screen is convenient for display and operation.

[0029] The specific usage method is as follows:

[0030] When the pressure sensing device detects excessive intake pressure, it sends a signal to the controller 10. The controller 10 then controls the spring control device 2 to achieve automatic adjustment of the regulating valve body 1. By adjusting the pressure difference between the intake end of the regulating valve body 1 and the intake pipe 6, some gas at the intake end of the regulating valve body 1 enters the temporary gas storage tank 5 through the intake pipe 6 for storage, thereby reducing the pressure at the intake end of the regulating valve body 1. When the intake pressure is low, the controller 10 opens the sealing valve 8, allowing some gas in the temporary gas storage tank 5 to be discharged to the exhaust end of the regulating valve body 1 through the exhaust pipe 7, thus quickly adjusting the pressure fluctuations in the gas pipeline.

[0031] When air is introduced into the temporary gas storage tank 5, the pressure monitor 9 monitors the internal pressure of the temporary gas storage tank 5. When the pressure is high, the controller 10 calculates the pressure data monitored by the pressure monitor 9 and the pressure sensing device, and adjusts the opening and closing of the sealing valve 8 and the spring control device 2 according to the pressure situation to discharge part of the air in the temporary gas storage tank 5, so as to prevent the temporary gas storage tank 5 from being damaged by the high pressure.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A kind of gas pipe network automatic pressure regulating valve, including adjusting valve body (1), spring control device (2) and two groups of connecting pipe (3), the connecting pipe (3) is installed at the both ends of adjusting valve body (1), the spring control device (2) is installed above adjusting valve body (1), the inside of adjusting valve body (1) is equipped with pressure sensing device, it is characterized in that: The outer wall of adjusting valve body (1) one side is equipped with temporary gas tank (5), the temporary gas tank (5) is communicated with inlet pipe (6) and exhaust pipe (7), the inlet pipe (6) is communicated with the gas inlet end of adjusting valve body (1), the exhaust pipe (7) is communicated with the gas outlet end of adjusting valve body (1), the exhaust pipe (7) is connected with the temporary gas tank (5) between sealing valve (8); The bottom of temporary gas tank (5) is equipped with pressure monitor (9), the outer wall of temporary gas tank (5) is equipped with controller (10).

2. The automatic pressure regulating valve for gas pipeline network according to claim 1, characterized in that: The inlet pipe (6) and exhaust pipe (7) are respectively equipped with one-way valve (11), the one-way valve (11) is installed in the gas inlet end and the gas outlet end of adjusting valve body (1), and the inlet pipe (6) and the exhaust pipe (7) are respectively communicated with adjusting valve body (1).

3. The automatic pressure regulating valve for gas pipeline network according to claim 1, characterized in that: Spring control device (2), sealing valve (8), pressure monitor (9) are respectively connected with controller (10) by wire.

4. A gas network automatic pressure regulating valve according to claim 3, characterised in that: The shell of controller (10) is equipped with control chip and touch display screen inside.

5. The automatic pressure regulating valve for gas pipeline network according to claim 1, characterized in that: The outer wall of adjusting valve body (1) one side is equipped with mounting block (12), the outside of temporary gas tank (5) is equipped with connecting piece (13), the connecting piece (13) is fixedly connected with mounting block (12) by multiple groups of bolts.

6. The automatic pressure regulating valve for gas pipeline network according to claim 1, characterized in that: The port of connecting pipe (3) is equipped with connecting flange (4).

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