Special pipeline assembly for natural gas measurement

Abstract

The utility model relates to the technical field of natural gas measurement, and discloses a special pipeline assembly for natural gas measurement, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned on the outer side of the main body mechanism, and the main body mechanism comprises a first gas conveying pipe, a second gas conveying pipe, a gas inlet, a gas guide plate and a positioning plate, and the second gas conveying pipe is fixedly mounted at the right end of the first gas conveying pipe. According to the pipeline assembly special for natural gas measurement, natural gas enters through the first gas conveying pipe, the gas blocking ball valve is pushed rightwards, at the moment, the telescopic rod and the movable spring can be lengthened to store elastic force, after detection is completed, the draught fan stops conveying, at the moment, due to the fact that the gas blocking ball valve is not pushed, the elastic force stored by the telescopic rod and the movable spring can be released, and detection is completed. And at the moment, natural gas in the second gas conveying pipe cannot enter the first gas conveying pipe through the gas guide groove, gas backflow is effectively avoided in the using process, and the draught fan is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas measurement, in particular to a special pipeline component for natural gas measurement. Background Art

[0002] Natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally stored in strata. In petroleum geology, it usually refers to oilfield gas and gasfield gas. It mainly exists in oil fields and natural gas fields, and a small amount is also found in coal seams. The main use of natural gas is as fuel. It can be used to make carbon black, chemicals and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry.

[0003] Prior art CN212805272U proposes a special pipeline assembly for natural gas measurement. Natural gas can only flow through the gap between the cone mouth and the end of the support plate and the inner wall of the connecting pipe. The diameter of the cone mouth decreases from left to right. Natural gas also gathers in the cone mouth. The support plate is located on the left side of the slot. After the natural gas is gathered by the support plate, the natural gas density is relatively large at this time, and it is directly transported to the slot for measurement, thereby improving the measurement effect. When the fan inhales the airflow, the return plate blocks a large area of ​​the fan's air outlet. When the natural gas flows into the return plate, a backflow will be formed in the return plate. The natural gas flows back into the connecting pipe and is discharged from the exhaust pipe, thereby shortening the distance the natural gas airflow is transported.

[0004] When the prior art is in use, a fan is usually required to transport natural gas to a detection device for detection. However, after the fan stops transporting, natural gas remains in the pipeline it transports, which may cause the residual natural gas to flow back, thereby damaging the fan. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a special pipeline assembly for natural gas measurement to solve the problem raised in the above background technology that after the fan stops delivering natural gas, natural gas remains in the pipeline, which may cause the residual natural gas to flow back and damage the fan.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special pipeline assembly for natural gas measurement, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located on the outside of the main mechanism, and the main mechanism comprises a first gas pipe, a second gas pipe, an air inlet, an air guide plate and a positioning plate, wherein the second gas pipe is fixedly installed at the right end of the first gas pipe, the air inlet is fixedly arranged at the left end of the first gas pipe, the air guide plate is fixedly installed at the inner end of the first gas pipe, and the positioning plate is fixedly installed at the right end of the air guide plate.

[0009] Preferably, the main body mechanism also includes a telescopic rod, a movable spring, a limit spring plate, a ball-blocking valve and an air guide groove, the telescopic rod is fixedly mounted on the right end of the positioning plate, and the movable spring is movably mounted on the outer end of the telescopic rod.

[0010] Preferably, the limit spring plate is fixedly mounted on the right end of the telescopic rod, the left and right ends of the movable spring are respectively connected to the positioning plate and the limit spring plate, the ball blocking ball valve is fixedly mounted on the right end of the limit spring plate, and the air guide groove is fixedly arranged on the inner right end of the first air supply pipe.

[0011] Preferably, the auxiliary mechanism includes a left-side mounting card plate, a right-side mounting card plate, a docking hole, a docking rod, a sealing rubber ring, a first positioning block, a second positioning block, a docking card slot and a docking card plate, and the left-side mounting card plate is movably mounted at the left end of the second gas pipe outlet end.

[0012] Preferably, the right mounting plate is movably mounted on the right end of the air outlet end of the second air pipe, the docking hole is fixedly arranged at the lower right end of the left mounting plate, the docking rod is fixedly arranged at the lower left end of the right mounting plate, and the sealing rubber ring is fixedly arranged at the inner ends of the left mounting plate and the right mounting plate.

[0013] Preferably, the first positioning block is fixedly mounted on the upper end of the left mounting card plate, the second positioning block is fixedly mounted on the upper end of the right mounting card plate, the docking slot is fixedly mounted on the left end of the first positioning block, and the docking card plate is fixedly mounted on the left end of the second positioning block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The natural gas measurement dedicated pipeline assembly can be installed with the main body mechanism so that when the device is in use, natural gas enters through the first gas pipeline and pushes the ball blocking valve to the right. At this time, the telescopic rod and the movable spring will be stretched to store elastic force. When the detection is completed, the fan stops delivering. At this time, because the ball blocking valve is not pushed, the elastic force stored in the telescopic rod and the movable spring will be released, thereby pulling the ball blocking valve back and blocking the gas guide groove. At this time, the natural gas in the second gas pipeline cannot enter the first gas pipeline through the gas guide groove, effectively preventing gas backflow during use and preventing the fan from being damaged;

[0016] 2. The special pipeline assembly for natural gas measurement can be installed with an auxiliary mechanism so that when the device is in use, the left-side mounting card plate and the right-side mounting card plate can be installed at the connection between the second gas transmission pipe and the detection device through the docking hole and the docking rod. At this time, the docking card plate is inserted into the docking card slot to complete the installation of the left-side mounting card plate and the right-side mounting card plate. The connection can be sealed by the sealing rubber rings in the left-side mounting card plate and the right-side mounting card plate, so that it is more airtight when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the main mechanism of the utility model.

[0021] In the figure: 1. Main mechanism; 101. First air pipe; 102. Second air pipe; 103. Air inlet; 104. Air guide plate; 105. Positioning plate; 106. Telescopic rod; 107. Movable spring; 108. Limiting spring plate; 109. Ball valve; 110. Air guide groove; 2. Auxiliary mechanism; 201. Left mounting plate; 202. Right mounting plate; 203. Docking hole; 204. Docking rod; 205. Sealing rubber ring; 206. First positioning block; 207. Second positioning block; 208. Docking slot; 209. Docking plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 - Figure 4The utility model provides a technical solution: a special pipeline assembly for natural gas measurement, including a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located on the outside of the main mechanism 1, the main mechanism 1 includes a first gas pipe 101, a second gas pipe 102, an air inlet 103, an air guide plate 104 and a positioning plate 105, the second gas pipe 102 is fixedly installed at the right end of the first gas pipe 101, the air inlet 103 is fixedly arranged at the left end of the first gas pipe 101, the air guide plate 104 is fixedly installed at the inner end of the first gas pipe 101, and the positioning plate 105 is fixedly installed at the right end of the air guide plate 104.

[0024] The main body mechanism 1 also includes a telescopic rod 106, a movable spring 107, a limit spring plate 108, a ball blocking ball valve 109 and an air guide groove 110. The telescopic rod 106 is fixedly mounted on the right end of the positioning plate 105, the movable spring 107 is movably mounted on the outer end of the telescopic rod 106, the limit spring plate 108 is fixedly mounted on the right end of the telescopic rod 106, the left and right ends of the movable spring 107 are respectively connected to the positioning plate 105 and the limit spring plate 108, the ball blocking ball valve 109 is fixedly mounted on the right end of the limit spring plate 108, and the air guide groove 110 is fixedly arranged on the inner right end of the first air supply pipe 101. When the device is in use, At this time, natural gas enters through the first gas pipe 101 and pushes the blocking ball valve 109 to the right. At this time, the telescopic rod 106 and the movable spring 107 will be stretched to store elastic force. When the detection is completed, the fan stops delivering. At this time, because the blocking ball valve 109 is not pushed, the elastic force stored in the telescopic rod 106 and the movable spring 107 will be released, thereby pulling the blocking ball valve 109 back and blocking the air guide groove 110. At this time, the natural gas in the second gas pipe 102 cannot enter the first gas pipe 101 through the air guide groove 110, which effectively avoids gas backflow during use and prevents damage to the fan.

[0025] The auxiliary mechanism 2 includes a left-side mounting card plate 201, a right-side mounting card plate 202, a docking hole 203, a docking rod 204, a sealing rubber ring 205, a first positioning block 206, a second positioning block 207, a docking card slot 208 and a docking card plate 209. The left-side mounting card plate 201 is movably mounted on the left end of the air outlet end of the second gas pipeline 102, and the right-side mounting card plate 202 is movably mounted on the right end of the air outlet end of the second gas pipeline 102. The docking hole 203 is fixedly arranged at the lower right end of the left-side mounting card plate 201, the docking rod 204 is fixedly arranged at the lower left end of the right-side mounting card plate 202, the sealing rubber ring 205 is fixedly arranged at the inner ends of the left-side mounting card plate 201 and the right-side mounting card plate 202, and the first positioning block 206 is fixedly mounted on the left-side mounting card plate 20 1, the second positioning block 207 is fixedly installed on the upper end of the right mounting card plate 202, the docking card slot 208 is fixedly installed on the left end of the first positioning block 206, and the docking card plate 209 is fixedly installed on the left end of the second positioning block 207. When the device is in use, the left mounting card plate 201 and the right mounting card plate 202 can be installed at the connection between the second gas pipeline 102 and the detection device through the docking hole 203 and the docking rod 204. At this time, the docking card plate 209 is inserted into the docking card slot 208 to complete the installation of the left mounting card plate 201 and the right mounting card plate 202. The sealing rubber ring 205 in the left mounting card plate 201 and the right mounting card plate 202 can seal the connection, so that it is more airtight when in use.

[0026] Working principle: When the device is in use, natural gas enters through the first gas pipeline 101, pushing the blocking ball valve 109 to the right. At this time, the telescopic rod 106 and the movable spring 107 will be stretched to store elastic force. When the detection is completed, the fan stops delivering. At this time, because the blocking ball valve 109 is not pushed, the elastic force stored in the telescopic rod 106 and the movable spring 107 will be released, thereby pulling the blocking ball valve 109 back and blocking the air guide groove 110. At this time, the natural gas in the second gas pipeline 102 cannot enter the first gas pipeline 101 through the air guide groove 110. When in use, it can effectively prevent gas backflow and damage to the fan. When the device is in use, the left mounting card plate 201 and the right mounting card plate 202 can be installed at the connection between the second gas supply pipe 102 and the detection device through the docking hole 203 and the docking rod 204. At this time, the docking card plate 209 is inserted into the docking card slot 208 to complete the installation of the left mounting card plate 201 and the right mounting card plate 202. The sealing rubber ring 205 in the left mounting card plate 201 and the right mounting card plate 202 can seal the connection, so that it is more airtight when in use.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A pipeline assembly for natural gas measurement, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located outside the main mechanism (1); the main mechanism (1) comprises a first gas pipeline (101), a second gas pipeline (102), an air inlet (103), an air guide plate (104) and a positioning plate (105); the second gas pipeline (102) is fixedly mounted on the right end of the first gas pipeline (101); the air inlet (103) is fixedly arranged on the left end of the first gas pipeline (101); the air guide plate (104) is fixedly mounted on the inner end of the first gas pipeline (101); and the positioning plate (105) is fixedly mounted on the right end of the air guide plate (104).

2. A natural gas measurement dedicated pipeline assembly according to claim 1, characterized in that: The main body mechanism (1) further comprises a telescopic rod (106), a movable spring (107), a limit spring plate (108), a ball-blocking valve (109) and an air guide groove (110); the telescopic rod (106) is fixedly mounted on the right end of the positioning plate (105); and the movable spring (107) is movably mounted on the outer end of the telescopic rod (106).

3. A natural gas measurement dedicated pipeline assembly according to claim 2, characterized in that: The limit spring plate (108) is fixedly mounted on the right end of the telescopic rod (106); the left and right ends of the movable spring (107) are respectively connected to the positioning plate (105) and the limit spring plate (108); the ball blocking ball valve (109) is fixedly mounted on the right end of the limit spring plate (108); and the air guide groove (110) is fixedly arranged on the inner right end of the first air supply pipe (101).

4. A natural gas measurement dedicated pipeline assembly according to claim 3, characterized in that: The auxiliary mechanism (2) comprises a left-side mounting card plate (201), a right-side mounting card plate (202), a docking hole (203), a docking rod (204), a sealing rubber ring (205), a first positioning block (206), a second positioning block (207), a docking card slot (208) and a docking card plate (209); the left-side mounting card plate (201) is movably mounted on the left end of the gas outlet of the second gas transmission pipe (102).

5. A natural gas measurement dedicated pipeline assembly according to claim 4, characterized in that: The right side mounting plate (202) is movably mounted on the right end of the gas outlet of the second gas delivery pipe (102); the docking hole (203) is fixedly arranged at the lower right end of the left side mounting plate (201); the docking rod (204) is fixedly arranged at the lower left end of the right side mounting plate (202); and the sealing rubber ring (205) is fixedly arranged at the inner ends of the left side mounting plate (201) and the right side mounting plate (202).

6. A natural gas measurement dedicated pipeline assembly according to claim 5, characterized in that: The first positioning block (206) is fixedly mounted on the upper end of the left mounting card plate (201), the second positioning block (207) is fixedly mounted on the upper end of the right mounting card plate (202), the docking card slot (208) is fixedly mounted on the left end of the first positioning block (206), and the docking card plate (209) is fixedly mounted on the left end of the second positioning block (207).

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