Carbon emission detection gas sampling device

Abstract

The present application provides a kind of carbon emission detection gas sampling device, the carbon emission detection gas sampling device includes suction pipe, puncture needle, suction bottle and piston.The carbon emission detection gas sampling device provided by the present application is provided with suction pipe on gas pipeline.The gas inlet of suction pipe is communicated with gas pipeline, the gas outlet of suction pipe is provided with puncture needle along the axis direction of the gas outlet of suction pipe, and sealing pad is arranged in the inside of suction pipe, the mouth of suction bottle can be sealed and connected with sealing pad, in use, the mouth of suction bottle can be pushed to the inside of suction pipe, and the sealing plug of the mouth of suction bottle is penetrated by puncture needle, the mouth of suction bottle is abutted on sealing pad, to realize the sealing between suction bottle and suction pipe, then by pulling the piston inside the suction bottle, the gas in the inside of gas pipeline can be sucked into the inside of suction bottle, simple operation, and does not affect the leakage of gas.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of carbon emission monitoring, and particularly relates to a carbon emission detection gas sampling device. BACKGROUND

[0002] An important cause of environmental pollution is the increasing rise of carbon emissions. Therefore, it is necessary to strictly control carbon emissions in all parts and all production fields of the country to ensure the improvement of air quality. At present, in order to detect the content of carbon in the exhaust gas of enterprises and all fields, the exhaust gas in the enterprise needs to be sampled and detected to verify whether the exhaust gas meets the standard. At present, when the gas is sampled, the gas pipeline of the exhaust gas in the enterprise needs to be opened, and then the gas is extracted from the inside of the gas pipeline. In the sampling process, the gas is easy to overflow from the inside of the pipeline, which causes harm to the operator, and the operation is complex and not convenient for gas collection. SUMMARY

[0003] The present application provides a carbon emission detection gas sampling device, which aims to solve the problem of inconvenient operation and easy gas leakage in the prior art when sampling the exhaust gas of an enterprise.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is to provide a carbon emission detection gas sampling device, comprising:

[0005] An air extraction pipe is arranged on the gas pipeline and is in communication with the gas pipeline;

[0006] A piercing needle is fixedly arranged at the end of the air extraction pipe away from the gas pipeline, the piercing needle is a hollow structure and is in communication with the air extraction pipe;

[0007] An air extraction bottle is provided with a sealing plug at the mouth thereof, the end of the air extraction pipe is provided with a sealing gasket in sealing connection with the mouth of the air extraction bottle, and when the mouth of the air extraction bottle abuts against the sealing gasket, the piercing needle penetrates through the sealing plug;

[0008] A piston is slidably arranged in the air extraction bottle in the height direction of the air extraction bottle, and is used to extract the gas in the air extraction pipe into the air extraction bottle.

[0009] In a possible implementation manner, a placing rack for placing the air extraction bottle is further included, and the placing rack comprises:

[0010] A mounting rack is arranged on the gas pipeline, the mounting rack is provided with a slot for placing the air extraction bottle, the slot is arranged in the length direction of the piercing needle and is located above the piercing needle;

[0011] The driving member is arranged on a side of the mounting frame away from the puncture needle, and is used for driving the vacuum bottle to move toward the puncture needle when the vacuum bottle is located inside the slot.

[0012] In a possible implementation, the placement rack further includes:

[0013] a bracket, slidably arranged on the mounting frame along the length direction of the puncture needle, wherein the bracket is provided with a supporting portion for supporting the gas extraction bottle;

[0014] An elastic member is provided between the bracket and the mounting frame, and is used for driving the bracket to move in a direction away from the puncture needle.

[0015] In one possible implementation, an exhaust hole is provided at the bottom of the vacuum bottle, and a vacuum chamber connected to the exhaust hole and sealed to the bottom of the vacuum bottle is provided on the driving end of the driving member, and the vacuum chamber is connected to a vacuum pump for extracting the gas in the vacuum chamber to the outside.

[0016] In one possible implementation, the mounting bracket is rotatably mounted on the gas pipeline, and the axis of the rotating shaft on the mounting bracket is arranged parallel to the puncture needle. A plurality of the slots are provided on the mounting bracket, and the plurality of slots are arranged on the mounting bracket with the axis of the rotating shaft on the mounting bracket as the center.

[0017] In a possible implementation, the carbon emission detection gas sampling device further includes:

[0018] A driving unit is installed on the gas pipeline, wherein a driving end of the driving unit is drivingly connected to the mounting frame for driving the mounting frame to rotate on the gas pipeline;

[0019] A sensor is fixedly mounted on the gas pipeline and is located on a side of the mounting bracket away from the puncture needle, with a sensing end of the sensor facing the puncture needle, for sensing whether the gas extraction bottle is located above the puncture needle;

[0020] The controller is electrically connected to the sensor and the driving unit, and is used for receiving the signal from the sensor and controlling the working state of the driving unit.

[0021] In one possible implementation, a resistance switch is provided on the driving end of the driving member, the resistance switch and the driving member are electrically connected to the controller, and the resistance switch can slide into the interior of the vacuum bottle through the bottom of the vacuum bottle.

[0022] In a possible implementation, the exhaust pipe is provided with a control valve for controlling the flow state of gas inside the exhaust pipe, and the control valve is located between the puncture needle and the gas pipeline.

[0023] In a possible implementation, one end of the gas pumping bottle close to the mouth of the gas pumping bottle is a conical structure, and the piston is a conical structure that is adapted to the shape of the inner wall of the mouth of the gas pumping bottle.

[0024] In a possible implementation, brackets are provided on both sides of the slot, and ends of the brackets are provided with support portions for supporting the gas pumping bottle, wherein the support portions are arc-shaped structures adapted to the outer shape of the gas pumping bottle.

[0025] Compared with the prior art, the solution shown in the embodiment of the present application is different from the prior art in that an exhaust pipe is provided on the side wall of the gas pipe for discharging gas, and the exhaust pipe is provided along the radial direction of the gas pipe. The exhaust pipe is connected to the interior of the gas pipe, and gas can flow into the exhaust pipe through the gas pipe. A sealing gasket is provided inside the exhaust pipe. The end of the mouth of the exhaust bottle can abut against the sealing gasket to achieve a seal between the exhaust bottle and the exhaust pipe. The sealing gasket is fixedly provided inside the exhaust pipe, and a puncture needle is fixedly provided on the sealing gasket. The puncture needle is a hollow structure. The puncture needle is provided through the sealing gasket. A sealing plug is provided at the mouth of the exhaust bottle. When the mouth of the exhaust bottle abuts against the sealing gasket, the puncture needle pierces the sealing plug on the exhaust bottle and connects the exhaust bottle with the exhaust pipe. In the initial state, the piston inside the exhaust bottle is located at one end of the exhaust bottle near the mouth of the exhaust bottle. After the gas extraction bottle contacts the sealing gasket, the piston is pulled away from the puncture needle to draw the gas in the gas pipeline into the gas extraction bottle. After the gas is extracted, the gas extraction bottle is removed from the gas extraction pipe. It is easy to operate and simple to use, and will not cause gas leakage, thereby improving the safety of the collection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a gas sampling device for carbon emission detection provided by an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A partial enlarged view of part A in the middle;

[0028] Figure 3 for Figure 1 A top view of the gas sampling device for carbon emission detection;

[0029] Figure 4 A schematic diagram of the installation structure of the gas extraction bottle provided in an embodiment of the present invention;

[0030] Figure 5 for Figure 1 A partial enlarged view of part B in the middle.

[0031] Description of reference numerals:

[0032] 1. Gas pipeline; 2. Vacuum tube; 21. Puncture needle; 22. Sealing gasket; 23. Control valve; 3. Vacuum bottle; 31. Sealing plug; 32. Piston; 33. Exhaust hole; 4. Placement rack; 41. Mounting rack; 411. Slot; 42. Driving part; 421. Vacuum chamber; 422. Resistance switch; 43. Bracket; 44. Elastic part; 5. Vacuum pump; 6. Driving unit; 7. Sensor; 8. Controller. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] Please also refer to Figure 1 and Figure 2 , the carbon emission detection gas sampling device provided by the present invention is now described. The carbon emission detection gas sampling device includes a vacuum tube 2, a puncture needle 21, a vacuum bottle 3 and a piston 32. The vacuum tube 2 is arranged on the gas pipeline 1 and is connected to the gas pipeline 1; the puncture needle 21 is fixed at the end of the vacuum tube 2 away from the gas pipeline 1, the interior of the puncture needle 21 is a hollow structure, and is connected to the vacuum tube 2; the vacuum bottle 3 is provided with a sealing plug 31 at the mouth of the vacuum bottle 3, and a sealing gasket 22 is provided at the end of the vacuum tube 2 that is sealed with the mouth of the vacuum bottle 3. When the mouth of the vacuum bottle 3 contacts the sealing gasket 22, the puncture needle 21 penetrates the sealing plug 31; the piston 32 is slidably arranged inside the vacuum bottle 3 along the height direction of the vacuum bottle 3, and is used to draw the gas in the vacuum tube 2 into the interior of the vacuum bottle 3.

[0035] Compared with the prior art, the carbon emission detection gas sampling device provided in this embodiment has an exhaust pipe 2 provided on the side wall of the gas pipeline 1 for emitting gas, and the exhaust pipe 2 is provided along the radial direction of the gas pipeline 1. The exhaust pipe 2 is connected to the interior of the gas pipeline 1, and gas can flow into the exhaust pipe 2 through the gas pipeline 1. A sealing gasket 22 is provided inside the exhaust pipe 2. The end of the mouth of the exhaust bottle 3 can abut against the sealing gasket 22 to achieve a seal between the exhaust bottle 3 and the exhaust pipe 2. The sealing gasket 22 is fixedly provided inside the exhaust pipe 2, and a puncture needle 21 is fixedly provided on the sealing gasket 22. The puncture needle 21 has a hollow structure. The puncture needle 21 is provided through the sealing gasket 22. A sealing plug 31 is provided at the mouth of the exhaust bottle 3. When the mouth of the exhaust bottle 3 abuts against the sealing gasket 22, the puncture needle 21 pierces the sealing plug 31 on the exhaust bottle 3 and connects the exhaust bottle 3 with the exhaust pipe 2. In the initial state, the piston 32 inside the gas extraction bottle 3 is located at one end of the gas extraction bottle 3 near the mouth of the gas extraction bottle 3. After the gas extraction bottle 3 contacts the sealing gasket 22, the piston 32 is pulled away from the puncture needle 21 to draw gas from the gas pipeline 1 into the gas extraction bottle 3. After gas extraction is complete, the gas extraction bottle 3 is removed from the gas extraction pipe 2. This is convenient and easy to use, and does not cause gas leakage, thereby improving the safety of the collection personnel.

[0036] Specifically, in this embodiment, both the sealing gasket 22 and the sealing plug 31 are made of rubber. This not only enhances the sealing effect, but also prevents gas from being discharged from the gas extraction bottle 3 after the puncture needle 21 is withdrawn from the sealing plug 31, thereby improving the accuracy of subsequent gas detection.

[0037] Specifically, in this embodiment, the puncture needle 21 is entirely located inside the exhaust pipe 2, and there is a gap between the sealing gasket 22 and the mouth of the exhaust pipe 2 to accommodate the mouth of the exhaust bottle 3. This can prevent the puncture needle 21 from emerging from the mouth of the exhaust pipe 2 and easily injuring the operator.

[0038] Specifically, in this embodiment, the tapered structure of the end of the puncture needle 21 facilitates the puncture needle 21 to puncture the sealing plug 31 .

[0039] In some embodiments, the above-mentioned placement rack 4 can be used as follows Figure 1 、 Figure 3 See also Figure 1 、 Figure 3The carbon emission detection gas sampling device also includes a placement rack 4 for placing the gas extraction bottle 3, and the placement rack 4 includes a mounting rack 41 and a driving member 42. The mounting rack 41 is arranged on the gas pipeline 1, and a slot 411 for placing the gas extraction bottle 3 is provided on the mounting rack 41. The slot 411 is arranged along the length direction of the puncture needle 21 and is located above the puncture needle 21; the driving member 42 is arranged on the side of the mounting rack 41 away from the puncture needle 21, and is used to drive the gas extraction bottle 3 to move toward the puncture needle 21 when the gas extraction bottle 3 is located inside the slot 411. In this embodiment, the gas extraction pipe 2 is arranged in a vertical direction, and the length direction of the puncture needle 21 is arranged in a vertical direction. The placement rack 4 is located above the gas extraction pipe 2, and a slot 411 is provided on the placement rack 4. When in use, the gas extraction bottle 3 can be placed inside the slot 411 first, and the mouth of the gas extraction bottle 3 can be located below the gas extraction bottle 3. The driving member 42 is a pneumatic cylinder. Its push rod contacts the bottom of the vacuum bottle 3, forcing the sealing plug 31 at the mouth of the vacuum bottle 3 to contact the puncture needle 21. This allows the puncture needle 21 to pierce the sealing plug 31, establishing communication between the vacuum bottle 3 and the interior of the vacuum tube 2. The inner wall of the slot 411 slidably engages the outer wall of the vacuum bottle 3, guiding the movement of the vacuum bottle 3. The driving end of the driving member 42 is arranged to push along the length of the puncture needle 21, effectively causing the puncture needle 21 to pierce the sealing plug 31 and preventing the puncture needle 21 from bending, which could affect subsequent use.

[0040] In some embodiments, the above-mentioned placement rack 4 can be used as follows Figure 1 、 Figure 2 、 Figure 4 See also Figure 1 、 Figure 2 、 Figure 4 The placement rack 4 also includes a bracket 43 and an elastic member 44. The bracket 43 is slidably mounted on the mounting rack 41 along the length of the puncture needle 21. The bracket 43 is provided with a support portion for supporting the vacuum bottle 3. The elastic member 44 is disposed between the bracket 43 and the mounting rack 41 and is used to drive the bracket 43 to move away from the puncture needle 21. A slide groove is provided on the mounting rack 41 for placing the bracket 43. One end of the bracket 43 is slidably mounted inside the slide groove. The end of the bracket 43 near the vacuum tube 2 is provided with a support portion extending into the slot 411. The support portion is used to fit against the side wall of the vacuum bottle 3. When the vacuum bottle 3 is pushed toward the vacuum tube 2, the vacuum bottle 3 will drive the bracket 43 to move together. After the vacuum bottle 3 has completed degassing, the bracket 43 will be pulled by the elastic member 44 to reset the vacuum bottle 3. By configuring the bracket 43 and the driver 42, the operator only needs to place the gas extraction bottle 3 into the slot 411 and point the mouth of the gas extraction bottle 3 toward the gas extraction pipe 2 when sampling gas. The operator can then control the driver 42 and the piston 32 to complete the operation within the gas extraction bottle 3. This simplifies the operation and saves manpower.

[0041] Optionally, in this embodiment, the support portion is hingedly mounted on the bracket 43. A torsion spring is disposed between the support portion and the bracket 43. The torsion spring is used to rotate the support portion toward the interior of the slot 411. This allows the support portion to rest closely against the inner wall of the vacuum bottle 3. This facilitates the support portion to pull the mouth of the vacuum bottle 3 out of the vacuum tube 2 when the driving end of the driver 42 returns.

[0042] In some embodiments, the above-mentioned vacuum bottle 3 can be used as follows Figure 1 、 Figure 5 See also Figure 1 、 Figure 5 The bottom of the pumping bottle 3 is provided with a vent 33. The driving end of the driver 42 is provided with a pumping chamber 421 that communicates with the vent 33 and is sealed to the bottom of the pumping bottle 3. The pumping chamber 421 is connected to a pump 5 for extracting gas from the pumping chamber 421 to the outside. The vent 33 is provided at the bottom of the pumping bottle 3. The cavity inside the pumping bottle 3, located on the side of the piston 32 away from the mouth of the pumping bottle 3, is connected to the outside world through the vent 33. When the piston 32 inside the pumping bottle 3 moves, gas inside the cavity on the side of the piston 32 away from the mouth of the pumping bottle 3 can only enter or exit through the vent 33. The pumping chamber 421 is provided with an opening located on the side of the driving end of the driver 42 near the mounting bracket 41. A sealing ring is also provided on the sidewall of the opening of the pumping chamber 421, sealingly connecting the pumping chamber 421 to the bottom of the pumping bottle 3. When the driver 42 drives the vacuum chamber 421 to contact the bottom of the vacuum bottle 3, a sealing ring is arranged around the vent 33, thereby achieving sealed communication between the sealed chamber and the cavity in the vacuum bottle 3, away from the mouth of the vacuum bottle 3. The vacuum chamber 421 is connected to a vacuum pump 5, which can draw the gas inside the vacuum chamber 421 to the outside, creating a negative pressure in the vacuum chamber 421, thereby driving the piston 32 inside the vacuum bottle 3 to move away from the mouth of the vacuum bottle 3, thereby completing the process of drawing the gas from the gas pipeline 1 into the vacuum bottle 3.

[0043] In some embodiments, the mounting bracket 41 may be configured as follows: Figure 1 、 Figure 3 See also Figure 1 、 Figure 3The mounting bracket 41 is rotatably mounted on the gas pipeline 1, and the axis of the rotating shaft on the mounting bracket 41 is parallel to the puncture needle 21. A plurality of slots 411 are provided on the mounting bracket 41, and the plurality of slots 411 are arranged around the mounting bracket 41 with the axis of the rotating shaft on the mounting bracket 41 as the center. The mounting bracket 41 is rotatably mounted on the side wall of the gas pipeline 1. In addition, a plurality of slots 411 are arranged on the mounting bracket 41 along the circumference of the rotating shaft of the mounting bracket 41. The mounting bracket 41 can be rotated so that the slots 411 are located above the puncture needle 21. The gas extraction bottle 3 is placed inside the slot 411 located above the puncture needle 21. The gas extraction bottle 3 located above the puncture needle 21 can be used to extract gas samples from the gas pipeline 1. At the same time, the operator can place unsampled gas extraction bottles 3 inside the remaining slots 411. After the sampling of the previous gas extraction bottle 3 is completed, the adjacent gas extraction bottle 3 is rotated to the top of the puncture needle 21 by rotating the mounting frame 41 to perform the gas extraction sampling operation. The sampling gas extraction bottle 3 that has completed the sampling is unloaded and the unsampled gas extraction bottle 3 is replaced, so that the continuous sampling operation of the gas pipeline 1 can be achieved, thereby improving the sampling efficiency during the batch sampling process.

[0044] Specifically, in this embodiment, corresponding pointer scales are provided on the exhaust pipe 2 and the mounting bracket 41. By observing the pointer scales, it is possible to check whether the position of the slot 411 on the mounting bracket 41 is aligned with the opening of the exhaust pipe 2. This assists the operator in aligning the slot 411 with the opening of the exhaust pipe 2, improving the efficiency of alignment between the slot 411 on the mounting bracket 41 and the opening of the exhaust pipe 2.

[0045] In some embodiments, the carbon emission detection gas sampling device can be used as follows Figure 1 、 Figure 3 See also Figure 1 、 Figure 3The carbon emission detection gas sampling device also includes a drive unit 6, a sensor 7, and a controller 8. The drive unit 6 is mounted on the gas pipeline 1. Its driving end is in transmission connection with the mounting bracket 41, driving the mounting bracket 41 to rotate on the gas pipeline 1. The sensor 7 is fixedly mounted on the gas pipeline 1 and located on the side of the mounting bracket 41 away from the puncture needle 21. Its sensing end faces the puncture needle 21 and is used to sense whether the gas bottle 3 is above the puncture needle 21. The controller 8 is electrically connected to the sensor 7 and the drive unit 6, receiving signals from the sensor 7 and controlling the operating status of the drive unit 6. The drive unit 6 includes a drive motor and a transmission assembly. The drive motor is fixedly mounted on the gas pipeline 1 or mounted on a mounting bracket on the side of the gas pipeline 1. The transmission assembly includes a first gear and a second gear. The first gear is fixedly connected to the drive shaft of the drive motor and is coaxial with the drive shaft of the drive motor. The second gear is fixedly connected to the mounting bracket 41 and coaxial with the rotating axis of the mounting bracket 41. The first and second gears mesh with each other. The drive motor is electrically connected to the controller 8, and the sensor 7 is also electrically connected to the controller 8. A bracket for mounting the sensor 7 is located above the mounting frame 41 and is fixedly mounted on the gas pipeline 1. The position of the sensor 7 can be adjusted on the bracket along the rotational direction of the mounting frame 41. Adjusting the position of the sensor 7 allows for more precise positioning of the gas extraction bottle 3, ensuring that the drive member 42 accurately moves into the interior of the gas extraction pipe 2 when pushing the gas extraction bottle 3. During operation, the mounting frame 41 is rotated on the gas pipeline 1 by the drive unit 6. When the gas extraction bottle 3 rotates above the puncture needle 21, the sensor 7 senses the position of the gas extraction bottle 3 and sends a feedback signal to the controller 8, which then stops the drive unit 6. Once the gas inside the gas extraction bottle 3 is collected, the controller 8 controls the drive unit 6 to open and rotate the mounting frame 41. This enables automatic collection of gas from multiple gas extraction bottles 3. The operator simply replaces the gas extraction bottle 3 that has completed collection with one that has not yet been collected. The operation is simple and convenient.

[0046] In some embodiments, the driving member 42 may be configured as follows: Figure 1 、 Figure 5 See also Figure 1 、 Figure 5The driving end of the driving member 42 is provided with a contact switch 422, and the contact switch 422 and the driving member 42 are electrically connected with the controller 8. The contact switch 422 can slide into the inside of the gas sampling bottle 3 through the bottom of the gas sampling bottle 3. The contact switch 422 is located at the end of the driving end of the driving member 42. When the driving end of the driving member 42 contacts the bottom of the gas sampling bottle 3, the contact switch 422 is located in the inside of the gas sampling bottle 3 through the bottom of the gas sampling bottle 3. During the gas sampling process, the piston 32 moves towards the bottom of the gas sampling bottle 3. After the sampling is completed, the piston 32 contacts the contact switch 422. The contact switch 422 sends a signal to the controller 8. After the controller 8 receives the signal of the contact switch 422, the controller 8 feeds back a signal to the driving member 42, so that the driving member 42 retracts the driving end, and the sampling operation of the gas sampling bottle 3 is completed.

[0047] Specifically, in the embodiment, the gas sampling pump 5, the driving member 42 and the driving unit 6 are electrically connected with the controller 8. When the carbon emission detection gas sampling device is used, the gas sampling bottle 3 of the sample to be collected is placed into the slot 411 on the mounting rack 41. The controller 8 is turned on. The controller 8 controls the driving unit 6 to drive the mounting rack 41 to rotate on the gas pipeline 1. When the gas sampling bottle 3 rotates to the upper side of the piercing needle 21, the inductor 7 senses the position of the gas sampling bottle 3 and sends a signal to the controller 8. The controller 8 controls the driving unit 6 to stop working and controls the driving member 42 to drive the gas sampling bottle 3 to move towards the gas sampling bottle 3, so that the piercing needle 21 pierces the sealing plug 31 on the gas sampling bottle 3. At the same time, the controller 8 controls the gas sampling pump 5 to work, so that a negative pressure is formed in the gas sampling chamber 421, and the piston 32 moves away from the opening of the gas sampling bottle 3. When the piston 32 contacts the contact switch 422, the gas sampling operation in the gas sampling bottle 3 is completed. The controller 8 controls the driving member 42 to retract the driving end. The gas sampling bottle 3 is driven to separate from the gas sampling pipeline 2 by the bracket 43 and the elastic member 44. The controller 8 controls the mounting rack 41 to continue to rotate to collect the next gas sampling bottle 3. The whole process is completed by the controller 8, and the operation process is simple and convenient to use, which improves the work efficiency of the gas sampling. At the same time, the gas leakage can be effectively prevented.

[0048] In some embodiments, the above-mentioned gas sampling pipeline 2 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the gas sampling pipeline 2 is provided with a control valve 23 for controlling the gas flow state in the gas sampling pipeline 2. The control valve 23 is located between the piercing needle 21 and the gas pipeline 1. The control valve 23 can be closed after the gas sampling is completed, so as to prevent the leakage of the discharged gas. The control valve 23 can be opened before the later sampling, so as to perform the gas sampling. The discharged gas can be prevented from leaking from the inside of the piercing needle 21 after the sampling is completed.

[0049] In some embodiments, the above-mentioned gas sampling bottle 3 can adopt the structure as shown in Figure 2Structure. See Figure 2 , one end of the vacuum bottle 3 close to the mouth of the vacuum bottle 3 is a conical structure, and the piston 32 is a conical structure that matches the inner wall shape of the mouth of the vacuum bottle 3. The end of the vacuum bottle 3 is a conical structure. It is convenient for the bracket 43 to support the vacuum bottle 3. The piston 32 has the same conical structure as the end of the vacuum bottle 3. In this embodiment, when the piston 32 is located at the mouth of the vacuum bottle 3, the end of the piston 32 is in contact with the sealing plug 31. In addition, a clearance hole for avoiding the puncture needle 21 is provided on the piston 32. The contact connection between the end of the piston 32 and the sealing plug 31 can make the gas inside the vacuum bottle 3 be the gas extracted from the inside of the gas pipeline 1. Improve the accuracy of later detection.

[0050] In some embodiments, the bracket 43 may be configured as follows: Figure 1 、 Figure 2 、 Figure 4 See also Figure 1 、 Figure 2 、 Figure 4 Brackets 43 are provided on both sides of the slot 411. The ends of the brackets 43 are provided with support portions for supporting the gas pump bottle 3. The support portions are arc-shaped structures that match the shape of the gas pump bottle 3. The brackets 43 are symmetrically arranged on both sides of the slot 411. This provides a more stable support for the gas pump bottle 3 and prevents it from tilting, thereby facilitating alignment of the gas pump bottle 3 with the puncture needle 21.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A carbon emission detection gas sampling device, installed on a gas pipeline, characterized in that: include: An air extraction pipe is provided on the gas pipeline and is in communication with the gas pipeline; A puncture needle is fixedly mounted at the end of the exhaust pipe away from the gas pipeline, the interior of the puncture needle is a hollow structure and is connected to the exhaust pipe; A vacuum bottle, wherein the mouth of the vacuum bottle is provided with a sealing plug, the end of the vacuum tube is provided with a sealing gasket sealed with the mouth of the vacuum bottle, and when the mouth of the vacuum bottle abuts against the sealing gasket, the puncture needle penetrates the sealing plug; A piston is arranged inside the gas pumping bottle and slides along the height direction of the gas pumping bottle to pump the gas in the gas pumping pipe into the gas pumping bottle; Also included is a placement rack for placing the gas extraction bottle, the placement rack comprising: A mounting frame is provided on the gas pipeline, wherein the mounting frame is provided with a slot for placing the gas extraction bottle, the slot being provided along the length direction of the puncture needle and located above the puncture needle; a driving member, disposed on a side of the mounting frame away from the puncture needle, and configured to drive the vacuum bottle to move toward the puncture needle when the vacuum bottle is located inside the slot; An exhaust hole is provided at the bottom of the vacuum bottle, and a vacuum chamber connected to the exhaust hole and sealed to the bottom of the vacuum bottle is provided on the driving end of the driving member. The vacuum chamber is connected to a vacuum pump for extracting the gas in the vacuum chamber to the outside.

2. The carbon emission detection gas sampling device according to claim 1, characterized in that: The placement rack also includes: a bracket, slidably arranged on the mounting frame along the length direction of the puncture needle, wherein the bracket is provided with a supporting portion for supporting the gas extraction bottle; An elastic member is provided between the bracket and the mounting frame, and is used for driving the bracket to move in a direction away from the puncture needle.

3. The carbon emission detection gas sampling device according to claim 1, characterized in that: The mounting frame is rotatably mounted on the gas pipeline, and the axis of the rotating shaft on the mounting frame is arranged parallel to the puncture needle. A plurality of slots are provided on the mounting frame, and the plurality of slots are arranged on the mounting frame with the axis of the rotating shaft on the mounting frame as the center.

4. The carbon emission detection gas sampling device according to claim 3, characterized in that: The carbon emission detection gas sampling device also includes: A driving unit is installed on the gas pipeline, wherein a driving end of the driving unit is drivingly connected to the mounting frame for driving the mounting frame to rotate on the gas pipeline; A sensor is fixedly mounted on the gas pipeline and is located on a side of the mounting bracket away from the puncture needle, with a sensing end of the sensor facing the puncture needle, for sensing whether the gas extraction bottle is located above the puncture needle; The controller is electrically connected to the sensor and the driving unit, and is used for receiving the signal from the sensor and controlling the working state of the driving unit.

5. The carbon emission detection gas sampling device according to claim 4, characterized in that: A resistance switch is provided on the driving end of the driving member. The resistance switch and the driving member are both electrically connected to the controller, and the resistance switch can slide into the interior of the vacuum bottle through the bottom of the vacuum bottle.

6. The carbon emission detection gas sampling device according to claim 1, characterized in that: The air extraction pipe is provided with a control valve for controlling the flow state of gas inside the air extraction pipe, and the control valve is located between the puncture needle and the gas pipeline.

7. The carbon emission detection gas sampling device according to claim 1, characterized in that: One end of the gas pumping bottle close to the mouth of the gas pumping bottle is a conical structure, and the piston is a conical structure adapted to the outer shape of the inner wall of the mouth of the gas pumping bottle.

8. The carbon emission detection gas sampling device according to claim 2, characterized in that: Brackets are provided on both sides of the slot, and support portions for supporting the gas pumping bottle are provided at the ends of the brackets. The support portions are arc-shaped structures that are compatible with the outer shape of the gas pumping bottle.

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