Gas pipeline transportation pressure adjusting device

Abstract

The invention relates to the technical field of gas pressure adjustment, and discloses a gas pipeline transportation pressure adjusting device which comprises a pressure adjusting device, one end of the pressure adjusting device is communicated with a gas inlet pipe, the other end of the pressure adjusting device is communicated with a gas outlet pipe, and the pressure adjusting device comprises a device body. The device body is respectively provided with an air inlet channel and an air outlet channel which are communicated with the air inlet pipe and the air outlet pipe, the device body is internally provided with a shrinking air channel and an adjusting cavity which are communicated with the air inlet channel in sequence, the shrinking air channel is communicated with a C-shaped air channel communicated with the top of the adjusting cavity, and the top of the adjusting cavity is provided with a flat air channel communicated with the air outlet channel; an adjusting block capable of blocking the C-shaped air channel and the flat air channel is movably arranged in the adjusting cavity, and a limiting cylinder is arranged at the top of the adjusting block. Compared with the prior art, the method has the advantages that when the fuel gas pressure in the fuel gas pipeline changes, automatic adjustment can be carried out, and the fuel gas pressure of the terminal is kept unchanged.

Description

Technical Field

[0001] This invention relates to the field of gas pressure regulation technology, specifically to a gas pipeline transportation pressure regulation device. Background Technology

[0002] Gas fuels are a general term for gaseous fuels, primarily used in residential and industrial applications to release heat through combustion. They mainly include four categories: natural gas, manufactured gas, liquefied petroleum gas (LPG), and biomass gas. Classified by source, natural gas includes gas field gas and associated petroleum gas; manufactured gas encompasses forms such as distilled coal gas and gasified coal gas; LPG is mainly composed of propane and butane; and biomass gas is produced through biomass fermentation. With technological advancements, more and more households are connecting to gas systems. However, existing gas pipelines cannot regulate gas pressure while transmitting gas. Changes in gas pressure are difficult to detect and correct in a timely manner, often leading to dangerous situations when using gas due to pressure fluctuations within the pipelines. Improvements are needed. Summary of the Invention

[0003] (I) Technical problems to be solved The technical problem to be solved by the present invention is to overcome the above difficulties and provide a gas pipeline transportation pressure regulating device that can automatically adjust the gas pressure in the gas pipeline when the gas pressure changes, so as to keep the terminal gas pressure constant.

[0004] (II) Technical Solution To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a gas pipeline transportation pressure regulating device, comprising a pressure regulating device, one end of which is connected to an inlet pipe and the other end of which is connected to an outlet pipe, the pressure regulating device comprising a device body, the device body being provided with an inlet channel and an outlet channel respectively connected to the inlet pipe and the outlet pipe, the device body being provided with a narrowing channel and a regulating cavity connected to the inlet channel in sequence, the narrowing channel being connected to a C-shaped channel connected to the top of the regulating cavity, and the top of the regulating cavity being provided with a flat channel connected to the outlet channel; The regulating cavity is equipped with an regulating block that can block C-shaped airways and flat airways. The top of the regulating block is equipped with a limiting cylinder. The device body is equipped with a groove to accommodate the limiting cylinder. A rod extending into the limiting cylinder is provided in the groove. An regulating spring is sleeved on the rod, with one end fixedly connected to the groove and the other end fixedly connected to the regulating block.

[0005] As an improvement, a conical air passage is provided between the air intake and the narrowing air passage.

[0006] As an improvement, the adjusting block is provided with a circular groove to accommodate the rod.

[0007] As an improvement, the bottom of the adjustment cavity is provided with an annular cavity that can support the adjustment block.

[0008] As an improvement, the adjustment cavity is provided with symmetrically arranged limiting grooves, and the adjustment block is provided with a limiting block extending into the limiting groove.

[0009] As an improvement, the adjusting block and the adjusting cavity are slidably connected.

[0010] As an improvement, both the air inlet pipe and the air outlet pipe are provided with threads that connect to external pipes.

[0011] (III) Beneficial Effects The advantages of this invention compared to the prior art are: 1. After the gas enters the intake manifold, it enters the regulating chamber through the C-shaped passage and then enters the outlet manifold through the flat passage. When the gas pressure in the intake manifold increases, the gas will be ejected from the narrowing passage, pushing the regulating block upward. The regulating spring contracts, and the regulating block partially blocks the flat passage, keeping the gas pressure in the outlet manifold constant. When the gas pressure in the intake manifold becomes particularly high, the regulating block will continue to move upward to block the flat passage and the C-shaped passage, preventing danger from occurring. 2. A conical air passage is provided between the air intake passage and the narrowing air passage, which allows the combustion gas to enter the narrowing air passage more concentratedly; 3. The rod and the limiting cylinder work together to limit the adjustment spring and reset the adjustment block after the gas pressure returns to normal. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a gas pipeline transportation pressure regulating device according to the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the structure of a gas pipeline transportation pressure regulating device according to the present invention. Figure 2 .

[0014] Figure 3 This is a top view schematic diagram of the structure of a gas pipeline transportation pressure regulating device according to the present invention.

[0015] Figure 4 This invention relates to a gas pipeline transportation pressure regulating device. Figure 3 A schematic diagram of the structure in cross-section at point AA.

[0016] As shown in the figure: 1. Pressure regulating device; 2. Inlet pipe; 3. Outlet pipe; 4. Device body; 5. Inlet channel; 6. Outlet channel; 7. Narrowing channel; 8. Adjustment chamber; 9. C-shaped channel; 10. Flat channel; 11. Adjustment block; 12. Limiting cylinder; 13. Groove; 14. Rod; 15. Adjusting spring; 16. Conical channel; 17. Circular groove; 18. Circular cavity; 19. Limiting groove; 20. Limiting block. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0018] Combined with appendix Figure 1-4 A gas pipeline transportation pressure regulating device includes a pressure regulating device 1. One end of the pressure regulating device 1 is connected to an inlet pipe 2, and the other end is connected to an outlet pipe 3. The pressure regulating device 1 includes a device body 4. The device body 4 is provided with an inlet channel 5 and an outlet channel 6 respectively connected to the inlet pipe 2 and the outlet pipe 3. The device body 4 is provided with a narrowing channel 7 connected to the inlet channel 5 and a regulating cavity 8 in sequence. A C-shaped channel 9 connected to the top of the regulating cavity 8 is provided on the narrowing channel 7. A flat channel 10 connected to the outlet channel 6 is provided at the top of the regulating cavity 8.

[0019] An adjusting block 11 is movably disposed within the adjusting cavity 8 to block the C-shaped airway 9 and the flat airway 10. The adjusting block 11 and the adjusting cavity 8 are slidably connected. A limiting cylinder 12 is provided on the top of the adjusting block 11. A groove 13 is provided inside the device body 4 to accommodate the limiting cylinder 12. A rod 14 extending into the limiting cylinder 12 is provided inside the groove 13. An adjusting spring 15 is sleeved on the rod 14, with one end fixedly connected to the groove 13 and the other end fixedly connected to the adjusting block 11.

[0020] Both the air inlet pipe 2 and the air outlet pipe 3 are provided with threads that connect to external pipes, and the external pipes are connected through the threads on the air inlet pipe 2 and the air outlet pipe 3.

[0021] The gas enters the intake duct 5 through the intake pipe 2, and is then transported through the narrowing duct 7, the C-shaped duct 9, the regulating chamber 8, the flat duct 10, and the outlet duct 6 before entering the outlet pipe 3. When the gas pressure in the intake pipe 2 increases, the gas pressure in the intake passage 5 and the narrowing passage 7 also increases, pushing the regulating block 11 to move upward, the regulating spring 15 to contract, and the regulating block 11 to partially block the flat passage 10, so that less gas enters the outlet passage 6 and the gas pressure in the outlet passage 6 remains unchanged. When the gas pressure in the intake pipe 2 becomes particularly high, the gas pressure in the intake passage 5 and the narrowing passage 7 will also become particularly high, pushing the regulating block 15 to move upward, the regulating spring 11 to contract, and the regulating block 11 to block the flat passage 10 and the C-shaped passage 9, so that the gas will not enter the outlet passage 6, thus protecting the end gas user and preventing danger from occurring. When the gas pressure in the intake pipe 2 is restored, the gas pressure in the intake passage 5, the narrowed air passage 7, and the C-shaped air passage 9 will also be restored. The adjusting spring 15 extends, pushing the adjusting block 11 downward. The flat air passage 10 connects with the outlet passage 6 and the C-shaped air passage 9 to supply gas to the end user.

[0022] A conical air passage 16 is provided between the air intake 5 and the narrowing air passage 7.

[0023] The bottom of the adjustment cavity 8 is provided with an annular cavity 18 that can support the adjustment block 11.

[0024] The conical air passage 16 can compress the gas, making the gas pressure entering the annular cavity 18 and the regulating cavity 8 greater, thus pushing the regulating block 11 to move upward.

[0025] The adjusting block 11 is provided with a circular groove 17 for accommodating the rod 14. The circular groove 17 can accommodate the rod 14.

[0026] The adjustment cavity 8 is provided with symmetrically arranged limiting grooves 19, and the adjustment block 11 is provided with a limiting block 20 extending into the limiting groove 19. The limiting groove 19 and the limiting block 20 cooperate to limit the movement of the adjustment block 11.

[0027] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A gas pipeline transportation pressure regulating device, comprising a pressure regulating device, wherein one end of the pressure regulating device is connected to an inlet pipe and the other end is connected to an outlet pipe, characterized in that: The pressure regulating device includes a device body, on which an air inlet and an air outlet are respectively provided, which are connected to an air inlet pipe and an air outlet pipe. The device body is provided with a narrowing airway and an regulating cavity connected to the air inlet in sequence. A C-shaped airway connected to the top of the regulating cavity is provided on the narrowing airway. A flat airway connected to the top of the regulating cavity is provided on the top of the regulating cavity. The regulating cavity is equipped with an regulating block that can block C-shaped airways and flat airways. The top of the regulating block is equipped with a limiting cylinder. The device body is equipped with a groove to accommodate the limiting cylinder. A rod extending into the limiting cylinder is provided in the groove. An regulating spring is sleeved on the rod, with one end fixedly connected to the groove and the other end fixedly connected to the regulating block.

2. The gas pipeline transportation pressure regulating device according to claim 1, characterized in that: A conical air passage connects the air intake and the narrowing air passage.

3. The gas pipeline transportation pressure regulating device according to claim 1, characterized in that: The adjusting block is provided with a circular groove to accommodate the rod.

4. A gas pipeline transportation pressure regulating device according to claim 1, characterized in that: The bottom of the adjustment cavity is provided with an annular cavity that can support the adjustment block.

5. A gas pipeline transportation pressure regulating device according to claim 1, characterized in that: The adjustment cavity is provided with symmetrically arranged limiting grooves, and the adjustment block is provided with a limiting block extending into the limiting groove.

6. A gas pipeline transportation pressure regulating device according to claim 1, characterized in that: The adjusting block and the adjusting cavity are slidably connected.

7. A gas pipeline transportation pressure regulating device according to claim 1, characterized in that: Both the air inlet pipe and the air outlet pipe are provided with threads that connect to external pipes.

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