Gas inlet sample separation tank for well site on-site gas sampling

Abstract

The utility model relates to the technical field of natural gas sampling, in particular to a gas inlet sample separation tank for well site field gas sampling, which comprises a base, a gas storage tank, a connecting pipe, an extrusion box, a conveying box, a sampling box and an extrusion assembly, the extrusion assembly comprises a cam, a connecting rod, a push plate, a rotating rod, a stop block and a driving component, the cam is rotationally connected with the extrusion box, the connecting rod is slidably connected with the extrusion box, the push plate is fixedly connected with the connecting rod, the stop block is slidably connected with the extrusion box, the two ends of the rotating rod are rotationally connected with the stop block and the push plate correspondingly, and the rotating rod is arranged on the push plate; and in the approaching process of the two push plates, the two rotating rods are driven to move, the two rotating rods drive the stop blocks to descend, then the stop blocks seal the extrusion box, at the moment, the extruded natural gas cannot enter the conveying box through a pipeline, and therefore the purpose of effectively compressing the natural gas mixed gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas sampling, in particular to an air intake sampling tank for on-site gas sampling at a well site. Background Art

[0002] During the natural gas sampling process, due to the mixing of natural gas with water vapor, an acidic aqueous solution is easily produced during transportation and adheres to the inside of the transportation pipeline, causing pipeline corrosion and reducing the service life of the sampling structure.

[0003] Prior art CN215115416U discloses a natural gas analysis sampling air inlet structure, including a storage tank and a fixed pipe installed on the storage tank, a fixed plate fixed on the fixed pipe, a placement table provided on one side of the storage tank, and an operation box fixed on the placement table. The natural gas analysis sampling air inlet structure of the utility model, during the natural gas gas transportation process, through transmission, the push plates of the sliding rod located at one end of the operation box move toward each other, reducing the volume between the two push plates on the operation box, so that the natural gas mixed gas accumulated inside the operation box during the transportation process is compressed and liquefied, and the water vapor inside the natural gas mixed gas is liquefied and stored inside the operation box, so as to avoid the mutual reaction between the water vapor and the natural gas mixed gas during the transportation process on the delivery pipe to produce an acidic aqueous solution causing corrosion of the inner wall of the delivery pipe, thereby improving the service life of the sampling air inlet structure.

[0004] The above-mentioned device compresses the natural gas mixture by bringing two push plates close to each other, so that the water vapor is liquefied and stored inside the operating box. However, during the process of compressing the natural gas mixture, the delivery pipe is in an unobstructed state. At this time, the natural gas mixture can enter the sampling box through the delivery pipe, and the natural gas mixture cannot be effectively compressed, resulting in a poor effect of removing water vapor. Utility Model Content

[0005] The utility model aims to provide an air sampling tank for gas sampling at a well site, which solves the problem that in the process of compressing the natural gas mixed gas, the delivery pipe of an existing natural gas analysis sampling air inlet structure is in an unobstructed state, resulting in the inability to effectively compress the natural gas mixed gas, thereby resulting in poor effect of removing water vapor.

[0006] To achieve the above-mentioned purpose, the utility model provides an intake sampling tank for on-site gas sampling in a well site, comprising a base, a gas storage tank, a connecting pipe, an extrusion box, a conveying box and a sampling box, wherein the gas storage tank is mounted on the base, the extrusion box is mounted on the base, the two ends of the connecting pipe are respectively connected to the gas storage tank and the extrusion box, the conveying box is mounted on the base and is connected to the extrusion box through a pipeline, the sampling box is mounted on the base and is connected to the conveying box through a pipeline, and also comprises an extrusion assembly; the extrusion assembly comprises a cam, a connecting rod, a push plate, a rotating rod, a block and a driving member, the cam is rotatably connected to the extrusion box and is located on one side of the extrusion box, the connecting rod is slidably connected to the extrusion box and abuts against the cam and is arranged on the extrusion box, the push plate is fixedly connected to the connecting rod and is located inside the extrusion box, the block is slidably connected to the extrusion box and is located inside the extrusion box, the two ends of the rotating rod are respectively rotatably connected to the block and the push plate, the rotating rod is arranged on the push plate, and the driving member is arranged on the base.

[0007] Among them, the block includes a lifting block, a spring and a moving seat, the lifting block is slidably connected to the extrusion box and is located inside the extrusion box; the moving seat is slidably connected to the lifting block and is rotatably connected to the rotating rod, and is arranged on the lifting block; the two ends of the spring are respectively connected to the lifting block and the moving seat, and the spring is arranged on the lifting block.

[0008] Wherein, the cam includes a wheel body and a roller, the wheel body is rotatably connected to the extrusion box and is located on one side of the extrusion box; the roller is rotatably connected to the wheel body and is arranged on the wheel body.

[0009] Wherein, the driving component includes a bracket, a driving motor, a driving wheel, a driven wheel and a transmission belt, the bracket is fixedly connected to the base and is located on a side of the base close to the extrusion box; the driving motor is connected to the bracket and is located on one side of the bracket; the driving wheel is arranged on the driving motor and is connected to the output end of the driving motor; the driven wheel is fixedly connected to the cam and is located on one side of the cam; the transmission belt is respectively connected to the driving wheel and the driven wheel, and is sleeved on both sides of the driving wheel and the driven wheel.

[0010] Among them, the driving component also includes a rotating shaft, a driving bevel gear, a driven bevel gear and fan blades, the rotating shaft is fixedly connected to the driven wheel, and is rotatably connected to the conveying box, and passes through the conveying box; the driving bevel gear is fixedly connected to the rotating shaft and is located at one end of the rotating shaft; the fan blades are rotatably connected to the conveying box and are located inside the conveying box; the driven bevel gear is fixedly connected to the fan blades, meshes with the driving bevel gear, and is located on one side of the fan blades.

[0011] The utility model discloses an air intake sampling tank for on-site gas sampling at a well site. During the natural gas transportation process, the driving component is started to drive the cam to rotate, so that the cam drives the two connecting rods to move, and the two connecting rods drive the two push plates to approach each other, so as to squeeze the natural gas inside the extrusion box, liquefy the water vapor inside the natural gas and store it inside the extrusion box, so as to avoid the water vapor and natural gas mixing to produce an acidic aqueous solution, which causes pipeline corrosion; at the same time, the two rotating rods are driven to move during the approach of the two push plates, and the two rotating rods drive the block to descend, so that the block seals the extrusion box. At this time, the squeezed natural gas will not enter the transportation box through the pipeline, so as to achieve the purpose of effectively compressing the natural gas mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a gas inlet and sampling tank for on-site gas sampling at a well site according to the first embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the installation structure of the cam of the first embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the installation structure of the lifting block of the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of a driving component of the second embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of the installation structure of the active bevel gear of the second embodiment of the utility model.

[0018] In the figure: 101-base, 102-gas tank, 103-connecting pipe, 104-extrusion box, 105-transport box, 106-sampling box, 107-check valve, 108-extrusion assembly, 109-cam, 110-connecting rod, 111-push plate, 112-rotating rod, 113-block, 114-driving member, 115-lifting block, 116-spring, 117-moving seat, 118-wheel body, 119-roller, 201-bracket, 202-driving motor, 203-driving wheel, 204-driven wheel, 205-transmission belt, 206-rotating shaft, 207-driving bevel gear, 208-driven bevel gear, 209-fan blade. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] First embodiment:

[0021] See also Figures 1 to 3 ,in Figure 1 This is the overall structural diagram of the gas inlet and sampling tank for on-site gas sampling at the well site. Figure 2 This is a schematic diagram of the cam installation structure. Figure 3 It is a schematic diagram of the installation structure of the lifting block.

[0022] The utility model provides an inlet sampling tank for gas sampling at a well site, comprising a base 101, a gas storage tank 102, a connecting pipe 103, an extrusion box 104, a conveying box 105, a sampling box 106 and an extrusion assembly 108, wherein the extrusion assembly 108 comprises a cam 109, a connecting rod 110, a push plate 111, a rotating rod 112, a stopper 113 and a driving member 114, wherein the stopper 113 comprises a lifting block 115, a spring 116 and a moving seat 117, and the cam 109 comprises a wheel body 118 and a roller 119, wherein the cam 109 is driven to rotate by the driving member 114, thereby causing the two connecting rods 110 to drive the two push plates 111 are close to each other, thereby squeezing the natural gas inside the squeezing box 104, so that the water vapor in the natural gas is liquefied and remains in the squeezing box 104, and in the process of the two push plates 111 approaching each other, the rotating rod 112 is driven to move, so that the rotating rod 112 drives the stopper 113 to descend, and then the squeezing box 104 is sealed. At this time, the natural gas cannot enter the delivery box 105 through the pipeline, thereby achieving the purpose of improving the compression effect of the natural gas. It can be understood that the above-mentioned scheme can be used to improve the removal effect of water vapor in the natural gas, and can also be used to solve the problem of improving the sealing effect of the squeezing box 104.

[0023] According to this specific embodiment, the gas tank 102 is installed on the base 101, the extrusion box 104 is installed on the base 101, the two ends of the connecting pipe 103 are respectively connected to the gas tank 102 and the extrusion box 104, the delivery box 105 is installed on the base 101 and is connected to the extrusion box 104 through a pipeline, and the sampling box 106 is installed on the base 101 and is connected to the delivery box 105 through a pipeline; the gas tank 102 is used to store natural gas, and a one-way valve 107 is provided on the connecting pipe 103. When sampling, the one-way valve 107 is opened to allow the natural gas to pass through the connecting pipe 103, the extrusion box 104, the delivery box 105 and finally enter the sampling box 106.

[0024] Among them, the cam 109 is rotatably connected to the extrusion box 104 and is located on one side of the extrusion box 104, the connecting rod 110 is slidably connected to the extrusion box 104, abuts against the cam 109, and is arranged on the extrusion box 104, the push plate 111 is fixedly connected to the connecting rod 110 and is located inside the extrusion box 104, the block 113 is slidably connected to the extrusion box 104 and is located inside the extrusion box 104, the two ends of the rotating rod 112 are rotatably connected to the block 113 and the pushing plate 111 respectively, the rotating rod 112 is arranged on the pushing plate 111, and the driving member 114 is arranged on the base 101; the connecting rod 110, the pushing plate 111 and the rotating rod 112 are each provided with two, and the two connecting rods 110 are respectively located on the left and right sides of the extrusion box 104, and the driving member 114 can drive the cam 109 to rotate, and can also make the output Negative pressure is formed inside the delivery box 105, thereby delivering natural gas to the sampling box 106; during the natural gas delivery process, the driving component 114 is started to drive the cam 109 to rotate, so that the cam 109 drives the two connecting rods 110 to move, and the two connecting rods 110 drive the two push plates 111 to approach each other, thereby squeezing the natural gas inside the squeezing box 104, liquefying the water vapor inside the natural gas and storing it inside the squeezing box 104, so as to avoid the water vapor and natural gas mixing to produce an acidic aqueous solution, which causes the pipeline to be corroded; at the same time, in the process of the two push plates 111 approaching each other, the two rotating rods 112 are driven to move, and the two rotating rods 112 drive the block 113 to descend, so that the block 113 seals the squeezing box 104, and the squeezed natural gas will not enter the delivery box 105 through the pipeline, thereby achieving the purpose of effectively compressing the natural gas mixture.

[0025] Secondly, the lifting block 115 is slidably connected to the extrusion box 104 and is located inside the extrusion box 104; the moving seat 117 is slidably connected to the lifting block 115 and is rotatably connected to the rotating rod 112 and is arranged on the lifting block 115; the two ends of the spring 116 are respectively connected to the lifting block 115 and the moving seat 117, and the spring 116 is arranged on the lifting block 115; the spring 116 and the moving seat 117 are each provided with two, and are respectively located on the left and right sides of the lifting block 115, and when the two push plates 111 are close to each other, the rotating rod 112 is driven to move. 12 movement, the rotating rod 112 drives the moving seat 117 to descend, so that the moving seat 117 drives the spring 116 and the lifting block 115 to descend, and at this time the lifting block 115 seals the extrusion box 104, and then the two push plates 111 continue to approach to compress the natural gas, and at this time the rotating rod 112 drives the moving seat 117 to descend, so that the moving seat 117 squeezes the spring 116, so that the lifting block 115 can seal the extrusion box 104 in the early stage of compressing the natural gas, thereby achieving the purpose of improving the sealing effect of the extrusion box 104.

[0026] At the same time, the wheel body 118 is rotatably connected to the extrusion box 104 and is located on one side of the extrusion box 104; the roller 119 is rotatably connected to the wheel body 118 and is arranged on the wheel body 118; two rollers 119 are provided and are respectively located on both sides of the wheel body 118. The rollers 119 are used to reduce the friction between the cam 109 and the connecting rod 110, thereby avoiding wear of the cam 109 or the connecting rod 110.

[0027] When the gas sampling tank for well site on-site gas sampling of this embodiment is used, the cam 109 is driven to rotate by the driving member 114, and the cam 109 drives the two connecting rods 110 to move, thereby driving the two push plates 111 to approach each other, so that the two push plates 111 can compress the natural gas; while the two push plates 111 approach each other, they drive the two rotating rods 112 to move, so that the two rotating rods 112 drive the block 113 to descend, thereby causing the block 113 to seal the extrusion box 104, so that when the push plate 111 compresses the natural gas inside the extrusion box 104, the block 113 can seal the extrusion box 104, and prevent the natural gas from entering the delivery box 105 through the pipeline during the compression process. Thus, the compression effect on the natural gas is improved, thereby improving the removal effect of the water vapor mixed in the natural gas.

[0028] Second embodiment:

[0029] Based on the first embodiment, please refer to Figure 4 and Figure 5 , Figure 4 is a schematic structural diagram of a driving component of a second embodiment, Figure 5 It is a schematic diagram of the installation structure of the active bevel gear of the second embodiment. The driving component 114 of this embodiment includes a bracket 201, a driving motor 202, a driving wheel 203, a driven wheel 204, a transmission belt 205, a rotating shaft 206, a driving bevel gear 207, a driven bevel gear 208 and a fan blade 209.

[0030] According to the present specific embodiment, the bracket 201 is fixedly connected to the base 101 and is located on a side of the base 101 close to the extrusion box 104; the driving motor 202 is connected to the bracket 201 and is located on one side of the bracket 201; the driving wheel 203 is arranged on the driving motor 202 and is connected to the output end of the driving motor 202; the driven wheel 204 is fixedly connected to the cam 109 and is located on one side of the cam 109; the transmission belt 205 is respectively connected to the driving wheel 203 and the driven wheel 204, and is sleeved on both sides of the driving wheel 203 and the driven wheel 204; the driving motor 202 drives the driving wheel 203 to rotate, and then the driving wheel 203 drives the transmission belt 205 to rotate, the transmission belt 205 drives the driven wheel 204 to rotate, and the driven wheel 204 drives the cam 109 to rotate, thereby achieving the purpose of driving the cam 109 to rotate.

[0031] Among them, the rotating shaft 206 is fixedly connected to the driven wheel 204, and is rotatably connected to the conveying box 105, and passes through the conveying box 105; the driving bevel gear 207 is fixedly connected to the rotating shaft 206, and is located at one end of the rotating shaft 206; the fan blade 209 is rotatably connected to the conveying box 105, and is located inside the conveying box 105; the driven bevel gear 208 is fixedly connected to the fan blade 209, meshes with the driving bevel gear 207, and is located on one side of the fan blade 209; when the driving wheel 203 rotates, it also drives the rotating shaft 206 to rotate, so that the rotating shaft 206 drives the driving bevel gear 207 to rotate, and then the driving bevel gear 207 drives the driven bevel gear 208 to rotate, and the driven bevel gear 208 drives the fan blade 209 to rotate, and the natural gas is drawn into the sampling box 106 through the rotation of the fan blade 209.

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An air sampling tank for gas sampling at a well site, comprising a base, a gas storage tank, a connecting pipe, an extrusion box, a conveying box and a sampling box, wherein the gas storage tank is mounted on the base, the extrusion box is mounted on the base, the two ends of the connecting pipe are respectively connected to the gas storage tank and the extrusion box, the conveying box is mounted on the base and connected to the extrusion box through a pipeline, the sampling box is mounted on the base and connected to the conveying box through a pipeline, characterized in that: Also included is an extrusion assembly; The extrusion assembly includes a cam, a connecting rod, a push plate, a rotating rod, a block and a driving member. The cam is rotatably connected to the extrusion box and is located on one side of the extrusion box. The connecting rod is slidably connected to the extrusion box and abuts against the cam and is arranged on the extrusion box. The push plate is fixedly connected to the connecting rod and is located inside the extrusion box. The block is slidably connected to the extrusion box and is located inside the extrusion box. Both ends of the rotating rod are rotatably connected to the block and the push plate respectively. The rotating rod is arranged on the push plate, and the driving member is arranged on the base.

2. The gas sampling tank for well site gas sampling according to claim 1, characterized in that: The block includes a lifting block, a spring and a moving seat. The lifting block is slidably connected to the extrusion box and is located inside the extrusion box; the moving seat is slidably connected to the lifting block and is rotatably connected to the rotating rod, and is arranged on the lifting block; the two ends of the spring are respectively connected to the lifting block and the moving seat, and the spring is arranged on the lifting block.

3. The gas sampling tank for well site gas sampling as claimed in claim 2, characterized in that: The cam comprises a wheel body and a roller. The wheel body is rotatably connected to the extrusion box and is located at one side of the extrusion box. The roller is rotatably connected to the wheel body and is arranged on the wheel body.

4. The gas sampling tank for well site gas sampling according to claim 1, characterized in that: The driving component includes a bracket, a driving motor, a driving wheel, a driven wheel and a transmission belt. The bracket is fixedly connected to the base and is located on a side of the base close to the extrusion box; the driving motor is connected to the bracket and is located on one side of the bracket; the driving wheel is arranged on the driving motor and is connected to the output end of the driving motor; the driven wheel is fixedly connected to the cam and is located on one side of the cam; the transmission belt is respectively connected to the driving wheel and the driven wheel, and is sleeved on both sides of the driving wheel and the driven wheel.

5. The gas sampling tank for well site gas sampling as claimed in claim 4, characterized in that: The driving component also includes a rotating shaft, a driving bevel gear, a driven bevel gear and fan blades. The rotating shaft is fixedly connected to the driven wheel, and is rotatably connected to the conveying box and passes through the conveying box; the driving bevel gear is fixedly connected to the rotating shaft and is located at one end of the rotating shaft; the fan blades are rotatably connected to the conveying box and are located inside the conveying box; the driven bevel gear is fixedly connected to the fan blades, meshes with the driving bevel gear, and is located on one side of the fan blades.

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