Petroleum waste gas sampling equipment

Abstract

The utility model relates to the technical field and discloses petroleum waste gas sampling equipment which comprises a sampling cylinder, a piston rod is arranged in the sampling cylinder, one end of the piston rod is fixedly connected with a piston head, the piston head is in sliding connection with the sampling cylinder, the other end of the piston rod is fixedly connected with a pressing disc, and the upper surface of the sampling cylinder is fixedly connected with a suction nozzle. A guide pipe is fixedly connected to the interior of the sampling cylinder, a valve is arranged in the guide pipe, a quick connector is arranged at the tail end of the guide pipe, the quick connector is detachably connected with a sample storage bag, and a label bag is arranged on the outer surface of the sample storage bag. A quick connector and a sampling bag are arranged, so that the sampling bag can be replaced, and the working efficiency of sampling personnel can be improved; the connecting rod is connected with the pressing disc through a thread, so that collection personnel can conveniently collect waste gas at a high position, and the sampling requirements of waste gas at different heights can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas sampling, in particular to a sampling device for petroleum waste gas. Background Art

[0002] Petroleum waste gas refers to the waste gas generated in petrochemical plants, refineries and other places. It mainly comes from the waste gas generated by heating furnaces, boilers, catalytic cracking units, absorption stabilization systems, oil storage tanks, etc. in the oil processing process. Petroleum waste gas can cause harm to the environment and human health, so it needs to be sampled and tested, and can only be discharged after it is safe.

[0003] After searching, a boiler exhaust gas sampling device proposed in publication number CN214373689U includes a triangular bracket, a mounting seat, a gas sampling controller, an air pump, an air duct and other structures. First, the bracket is placed in the designated position, and then the air pump sampling bottle and the sampling tube are sealed and connected in turn using the air duct, and then the sampling bottle is placed in the sampling bottle fixing rack, and then the exhaust gas is waited to gradually rise and gather in the exhaust gas concentration box, and then the air pump is started through the gas sampling controller, and finally the exhaust gas in the exhaust gas concentration box is extracted and collected.

[0004] Although this device can sample exhaust gas, the sampling process is too cumbersome. When exhaust gas sampling is required in multiple areas, this device is inefficient and cannot meet the needs of exhaust gas sampling at different heights. Therefore, we propose a petroleum exhaust gas sampling device to solve the above disadvantages. Utility Model Content

[0005] The purpose of the utility model is to provide a petroleum waste gas sampling device in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0006] In order to solve the above problems, the utility model provides a technical solution:

[0007] A sampling device for petroleum waste gas comprises a sampling cylinder, wherein a piston rod is arranged inside the sampling cylinder, one end of the piston rod is fixedly connected to a piston head, the piston head is slidably connected to the sampling cylinder, the other end of the piston rod is fixedly connected to a pressing plate, a suction nozzle is fixedly connected to the upper surface of the sampling cylinder, a catheter is fixedly connected inside the sampling cylinder, a valve is arranged inside the catheter, a quick connector is arranged at the end of the catheter, the quick connector is detachably connected to a sample storage bag, and a label bag is arranged on the outer surface of the sample storage bag.

[0008] As a preferred solution of the utility model, a one-way valve is fixedly provided inside the suction nozzle, and filter cotton is movably provided inside the suction nozzle, and the filter cotton is located at the front end of the one-way valve.

[0009] As a preferred solution of the utility model, a first groove is formed inside the pressing plate, and a first connecting rod is threadedly connected inside the first groove.

[0010] As a preferred solution of the utility model, a second groove is formed on the outer surface of the sampling tube, and a second connecting rod is threadedly connected inside the second groove.

[0011] As a preferred solution of the utility model, a storage box is fixedly connected to the outer surface of the sampling cylinder, and a magnetic cover is detachably connected to the outer surface of the storage box.

[0012] As a preferred solution of the utility model, the outer surface of the sampling cylinder is provided with scale lines at equal intervals, and the outer surface of the sampling cylinder is fixedly connected with a handle.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can quickly sample petroleum waste gas through the cooperation of the sampling tube, the piston head and the piston rod, and is provided with a quick connector and a sampling bag, so that the sampling bag can be replaced in time, which is beneficial to improving the work efficiency of the sampling personnel;

[0015] 2. The utility model is provided with a connecting rod, which can lengthen the piston rod conveniently and quickly through the thread, so as to facilitate the collection personnel to collect the waste gas at high places, which is conducive to meeting the waste gas sampling needs at different heights;

[0016] 3. The utility model is provided with filter cotton, which can filter out dust and impurities in the petroleum waste gas, thereby facilitating the detection of the petroleum waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0018] Figure 1 This is a schematic diagram of the utility model in a handheld state;

[0019] Figure 2 This is a schematic diagram of the utility model in a heightened assembly state;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0021] In the figure: 1. sampling cylinder; 2. piston head; 3. piston rod; 4. push plate; 5. catheter; 6. quick connector; 7. nozzle; 8. sample bag; 9. handle; 10. one-way valve; 11. filter cotton; 12. storage box; 13. magnetic cover; 14. label bag; 15. first groove; 16. second groove; 17. first connecting rod; 18. second connecting rod; 19. scale line; 20. valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Example:

[0024] See also Figure 1-Figure 3 The utility model provides a technical solution: a sampling device for petroleum waste gas, including a sampling cylinder 1, the interior of the sampling cylinder 1 is a hollow structure, a piston rod 3 is arranged inside the sampling cylinder 1, the piston rod 3 is made of plastic, one end of the piston rod 3 is fixedly connected with a piston head 2, the piston head 2 is slidably connected to the sampling cylinder 1, the other end of the piston rod 3 is fixedly connected with a pressing plate 4, a first groove 15 is provided inside the pressing plate 4, a first connecting rod 17 is threadedly connected inside the first groove 15, a second groove 16 is provided on the outer surface of the sampling cylinder 1, a second connecting rod 18 is threadedly connected inside the second groove 16, the first connecting rod 17 and the second connecting rod 18 are connected to the pressing plate 4 and the sampling cylinder 1 through threads, forming a lengthened effect of the piston rod 3, and the sampling personnel can collect the petroleum waste gas at a high place into the sampling cylinder 1 in situ, which is beneficial to In order to improve the sampling efficiency of the sampling personnel, a suction nozzle 7 is fixedly connected to the upper surface of the sampling tube 1, and a conduit 5 is fixedly connected to the interior of the sampling tube 1. The conduit 5 and the sampling tube 1 are made of an integrated casting process. A valve 20 is arranged inside the conduit 5. When petroleum waste gas is collected inside the sampling tube 1, the waste gas is transported to the interior of the sample bag 8 by opening the valve 20. A quick connector 6 is arranged at the end of the conduit 5. The quick connector 6 is detachably connected to the sample bag 8. When the quick sample bag 8 is full of petroleum waste gas, the sample bag 8 is disassembled using the quick connector 6, and a new sample bag 8 is replaced, and then installed using the quick connector 6. A sealing ring is arranged inside the quick connector 6 to increase the sealing performance. A label bag 14 is arranged on the outer surface of the sample bag 8. The label bag 14 is made of a transparent waterproof material, and a card can be arranged inside to record the waste gas sampling situation.

[0025] Furthermore, a one-way valve 10 is fixedly provided inside the suction nozzle 7. When the exhaust gas is transported to the sample bag 8, the one-way valve 10 can prevent the gas from leaking out. A filter cotton 11 is movably provided inside the suction nozzle 7. The filter cotton 11 is located at the front end of the one-way valve 10. When the sampler samples the exhaust gas through the suction nozzle 7, the exhaust gas will first pass through the filter cotton 11 to filter out dust and impurities outside, thereby directly transporting the harmful gas to the interior of the sampling tube 1, which is convenient for the subsequent exhaust gas detection.

[0026] Furthermore, a storage box 12 is fixedly connected to the outer surface of the sampling tube 1, and a magnetic cover 13 is detachably connected to the outer surface of the storage box 12. The opening of the storage box 12 is made of iron, and the magnetic cover 13 can be directly adsorbed on the surface of the storage box 12 by magnetic force. The interior of the storage box 12 is used to store clean sample bags 8.

[0027] Furthermore, the outer surface of the sampling tube 1 is equidistantly provided with scale lines 19, and the scale lines 19 are used to observe the internal gas position. When a certain amount of exhaust gas is collected, the collection can be stopped and stored in the sample bag 8 to prepare for the collection of exhaust gas at the next site. The outer surface of the sampling tube 1 is fixedly connected with a handle 9, and the handle 9 is convenient for carrying the sampling tube 1 to other sites.

[0028] In summary:

[0029] When it is necessary to sample the petroleum exhaust gas, first align the suction nozzle 7 with the petroleum exhaust gas sampling point, and then pull the pressing plate 4 downward to drive the piston head 2 downward. At this time, the petroleum exhaust gas passes through the filter cotton 11, and after filtering the dust and impurities, it enters the interior of the sampling tube 1 through the one-way valve 10. At this time, the scale line 19 outside the sampling tube 1 can be observed. After extracting a certain amount of exhaust gas sampling, stop pulling the pressing plate 4, and then open the valve 20 to push the pressing plate 4 upward. Since the one-way valve 10 is provided inside the suction nozzle 7, the petroleum exhaust gas will enter the interior of the sample bag 8 through the conduit 5. The outer surface of the sample bag 8 is provided with a label bag 14, and the sampling situation can be recorded and put into the label bag 14. At this time, the sample bag 8 that has been extracted can be removed through the quick connector 6, the storage box 12 is opened, and a new sample bag 8 is taken out and connected to the conduit 5 with the quick connector 6, so as to facilitate the sampling of the petroleum waste gas at the next site. When it is necessary to sample the petroleum waste gas at a high place, the first connecting rod 17 and the first groove 15, and the second connecting rod 18 and the second groove 16 can be threadedly connected respectively, and then the first connecting rod 17 is pulled, and the first connecting rod 17 will drive the piston rod 3 and thus drive the piston head 2 to move downward, so that the petroleum waste gas at a high place can be sampled; the handle 9 is convenient for taking the sampling device, and the sampling device can be carried to other sites through the handle 9.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for petroleum waste gas, characterized in that: The invention comprises a sampling cylinder (1), wherein a piston rod (3) is provided inside the sampling cylinder (1), one end of the piston rod (3) is fixedly connected to a piston head (2), the piston head (2) is slidably connected to the sampling cylinder (1), the other end of the piston rod (3) is fixedly connected to a pressing plate (4), the upper surface of the sampling cylinder (1) is fixedly connected to a suction nozzle (7), the interior of the sampling cylinder (1) is fixedly connected to a catheter (5), a valve (20) is provided inside the catheter (5), a quick connector (6) is provided at the end of the catheter (5), the quick connector (6) is detachably connected to a sample storage bag (8), and a label bag (14) is provided on the outer surface of the sample storage bag (8).

2. The petroleum waste gas sampling device according to claim 1, characterized in that: A one-way valve (10) is fixedly arranged inside the suction nozzle (7), and a filter cotton (11) is movably arranged inside the suction nozzle (7), wherein the filter cotton (11) is located at the front end of the one-way valve (10).

3. The petroleum waste gas sampling device according to claim 1, characterized in that: A first groove (15) is provided inside the pressing plate (4), and a first connecting rod (17) is threadedly connected inside the first groove (15).

4. The petroleum waste gas sampling device according to claim 1, characterized in that: The outer surface of the sampling cylinder (1) is provided with a second groove (16), and a second connecting rod (18) is threadedly connected inside the second groove (16).

5. The petroleum waste gas sampling device according to claim 1, characterized in that: The outer surface of the sampling cylinder (1) is fixedly connected to a storage box (12), and the outer surface of the storage box (12) is detachably connected to a magnetic cover (13).

6. The petroleum waste gas sampling device according to claim 1, characterized in that: The outer surface of the sampling cylinder (1) is provided with scale lines (19) at equal intervals, and the outer surface of the sampling cylinder (1) is fixedly connected to a handle (9).

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