Gas circuit pressure stabilizing device
By designing the gas circuit pressure stabilization device, using components such as gas source filters, airbag-type energy storage gas tanks, etc., the safety problems caused by the unstable air pressure of the coal mine damper are solved, and the stable operation and safety guarantee of the damper is achieved.
Patent Information
- Application Number
- CN202422505127.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In the underground ventilation system of coal mines, safety accidents occur frequently due to excessive or too small air pressure, and the prior art is difficult to provide stable air pressure to support the normal operation of the damper.
An air-circuit pressure stabilization device is designed, including air source filter, air source regulating valve, pressure stabilizing regulating valve, airbag-type energy storage tank and other components. The air pressure is adjusted through filtration, pressure reduction and gas storage chamber to ensure that the damper obtains stable air pressure support.
It effectively avoids damper failures caused by excessive air pressure or too small, ensures safe and reliable operation of damper, and prevents safety accidents.
Smart Images
Figure CN223137633U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mine gas source control, and particularly relates to a gas circuit voltage stabilizing device. Background Art
[0002] In the underground ventilation system of coal mines, air doors are the most commonly used ventilation equipment in the production process of coal mines. During the operation of conventional pneumatic air doors, when the air pressure value output by the main gas source is lower than the air pressure required for the operation of the air door, it will cause the pneumatic components not to execute actions, and then cause the air door to be unable to operate; when the air pressure value output by the main gas source is higher than the air pressure required for the operation of the air door, it will cause safety accidents when personnel and vehicles pass through. Content of the Utility Model
[0003] The purpose of the utility model is to provide a gas circuit voltage stabilizing device, which can avoid safety accidents caused by excessive or too small air pressure of the air door.
[0004] The technical solution of the utility model is: a gas circuit voltage stabilizing device, including a gas source and an input air pipe. The gas source is connected with a gas source filter through the input air pipe. A gas source regulating valve is arranged on one side of the gas source filter. A conveying air pipe is arranged on one side of the gas source regulating valve. A gas source input pressure gauge is arranged on the conveying air pipe. One end of the conveying air pipe is connected with a voltage stabilizing regulating valve. An output air pipe is connected to the voltage stabilizing regulating valve. One end of the output air pipe is connected with an air door; a branch pipe is arranged on the conveying air pipe. One end of the branch pipe is connected with a balloon type energy storage gas tank. The balloon type energy storage gas tank includes a shell. One side inside the shell is provided with a balloon. Nitrogen is filled inside the balloon. And the inflation port of the balloon extends to the outside of the shell. The inflation port is communicated with the branch pipe. A gas storage chamber is formed between the balloon and the inner wall of the shell.
[0005] Further, a one-way valve is arranged on the conveying air pipe.
[0006] Further, a gas source output pressure gauge is arranged on the output air pipe.
[0007] Further, both the input air pipe and the output air pipe are air pipes with a diameter of φ12mm.
[0008] Further, one side of the shell is provided with a gas source port for inflating or deflating the gas storage chamber.
[0009] The beneficial effects of the present utility model are as follows: The air source filter filters the dust and moisture of the input gas. At the same time, the air source regulating valve reduces the pressure of the filtered gas. The air source input pressure gauge detects the air pressure in the delivery air pipe in real time. The one-way valve on the delivery air pipe ensures that the gas can only flow in the direction of the air damper. The pressure stabilizing regulating valve ensures the stability of the output air pressure. The air source output pressure gauge detects the air pressure value output by the output air pipe in real time to ensure the normal operation of the air damper. The airbag type energy storage air tank ensures the stability of the air pressure in the air circuit. When the air pressure is too high, the gas in the delivery air pipe enters the interior of the airbag type energy storage air tank through the branch pipe, compressing the gas in the air storage chamber. At this time, the air pressure in the delivery air pipe decreases, providing a stable air pressure for the pneumatic actuating element inside the air damper. When the air pressure in the delivery air pipe is lower than the gas pressure in the air storage chamber, the nitrogen in the airbag will be squeezed out by the gas and supplemented into the system, and the air pressure in the delivery air pipe increases, providing a stable air pressure for the pneumatic actuating element inside the air damper. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0011] Figure 1 It is a schematic diagram of the working process of the present utility model;
[0012] Figure 2 It is a schematic diagram of the structure of the airbag type energy storage air tank of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0014] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side", "one end", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0015] When the air pressure value output by the main air source is lower than the air pressure required for the damper to operate, it will cause the pneumatic components not to perform actions, and further cause the damper to not operate; when the air pressure value output by the main air source is higher than the air pressure required for the damper to operate, it will cause safety accidents when people and vehicles pass by. In view of this, the inventor of the present application provides an air circuit pressure stabilizing device, which can provide stable air pressure for the damper and avoid safety accidents caused by excessive or too low air pressure of the damper.
[0016] As Figure 1 , Figure 2 shown, an air circuit pressure stabilizing device includes an air source 1 and an input air pipe 2. The air source 1 is connected to an air source filter 3 through the input air pipe 2. One side of the air source filter 3 is provided with an air source regulating valve 4. One side of the air source regulating valve 4 is provided with a delivery air pipe 6. An air source input pressure gauge 5 is arranged on the delivery air pipe 6. One end of the delivery air pipe 6 is connected to a pressure stabilizing regulating valve 7. An output air pipe 8 is connected to the pressure stabilizing regulating valve 7. One end of the output air pipe 8 is connected to the damper; a branch pipe 9 is arranged on the delivery air pipe 6. One end of the branch pipe 9 is connected to a balloon-type energy storage air tank 10. The balloon-type energy storage air tank 10 includes a housing 101. One side inside the housing 101 is provided with a balloon 103. Nitrogen is filled inside the balloon 103. And the inflation port 104 of the balloon 103 extends to the outside of the housing 101, and the inflation port 104 is communicated with the branch pipe 9. A gas storage chamber 105 is formed between the balloon 103 and the inner wall of the housing 101.
[0017] Based on the above embodiment, the dust and moisture of the input gas are filtered by the air source filter 3, and at the same time, the filtered gas is decompressed by the air source regulating valve 4. The air source input pressure gauge 5 detects the air pressure in the delivery air pipe 6 in real time, and the balloon-type energy storage air tank 10 ensures the stable air pressure of the air circuit.
[0018] In this embodiment, as Figure 1As shown, a one-way valve 601 is provided on the air delivery pipe 6.
[0019] Based on the above embodiments, the one-way valve 601 ensures that gas does not return to the air source regulating valve 4 through the air delivery pipe 6.
[0020] In this embodiment, an air source output pressure gauge 801 is provided on the output air pipe 8.
[0021] Based on the above embodiments, the air pressure value output by the output air pipe 8 is detected in real time through the air source output pressure gauge 801 to ensure the normal operation of the air damper.
[0022] In this embodiment, both the input air pipe 2 and the output air pipe 8 are air pipes with a diameter of φ12mm.
[0023] Based on the above embodiments, the air flow rate inside the input air pipe 2 and the output air pipe 8 with a diameter of 12mm is ensured to be not less than 4000L / min.
[0024] In this embodiment, an air source port 102 is provided on one side of the housing 101. Gas is supplemented or released into the air storage chamber 105 through the air source port 102, thereby adjusting the air pressure in the air storage chamber 105.
[0025] The working principle of the present utility model is as follows: The gas at the air source 1 enters the air source filter 3 through the input air pipe 2. The dust and moisture in the gas are filtered in the air source filter 3. The filtered gas enters the air delivery pipe 6 after being decompressed by the air source regulating valve 4. The one-way valve 601 on the air delivery pipe 6 ensures that the gas can only flow towards the air damper. When the air pressure in the air delivery pipe 6 is the same as the air pressure required by the air damper, the gas in the air delivery pipe 6 enters the output air pipe 8 through the pressure stabilizing regulating valve 7 and enters the pneumatic actuator inside the air damper through the output air pipe 8, thereby ensuring the smooth operation of the air damper.
[0026] When the air pressure in the air delivery pipe 6 is too high, the gas in the air delivery pipe 6 enters the inside of the bladder type energy storage air tank 10 through the branch pipe 9. A part of the gas enters the bladder 103, compressing the gas in the air storage chamber 105. At this time, the air pressure in the air delivery pipe 6 decreases, and the gas in the air delivery pipe 6 provides a stable air pressure for the pneumatic actuator inside the air damper through the pressure stabilizing regulating valve 7 and the output air pipe 8; when the air pressure in the air delivery pipe 6 is too low, the air pressure in the air delivery pipe 6 is lower than the gas pressure in the air storage chamber 105. The nitrogen in the bladder 103 will be squeezed out by the gas in the air storage chamber 105 and supplemented into the air delivery pipe 6 through the branch pipe 9. The air pressure in the air delivery pipe 6 increases, and the gas in the air delivery pipe 6 provides a stable air pressure for the pneumatic actuator inside the air damper through the pressure stabilizing regulating valve 7 and the output air pipe 8.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A gas path voltage stabilizing device, comprising a gas source and an input gas pipe, characterized in that, The air source is connected with an air source filter through an input air pipe. One side of the air source filter is provided with an air source regulating valve. One side of the air source regulating valve is provided with a delivery air pipe. An air source input pressure gauge is arranged on the delivery air pipe. One end of the delivery air pipe is connected with a voltage stabilizing regulating valve. An output air pipe is connected to the voltage stabilizing regulating valve. One end of the output air pipe is connected with a damper; a branch pipe is arranged on the delivery air pipe. One end of the branch pipe is connected with a balloon type energy storage gas tank. The balloon type energy storage gas tank comprises a shell. One side inside the shell is provided with a balloon. Nitrogen is filled inside the balloon. And an air inlet of the balloon extends to the outside of the shell. The air inlet is communicated with the branch pipe. A gas storage chamber is formed between the balloon and the inner wall of the shell.
2. The gas circuit voltage stabilizing device according to claim 1, wherein A check valve is arranged on the delivery air pipe.
3. The air circuit voltage stabilizing device according to claim 2, characterized in that, An air source output pressure gauge is arranged on the output air pipe.
4. The air circuit voltage stabilizing device according to claim 3, characterized in that, Both the input air pipe and the output air pipe are air pipes with a diameter of φ12mm.
5. The air circuit voltage stabilizing device according to claim 4, characterized in that, One side of the shell is provided with an air source port for inflating or deflating the gas storage chamber.