Portable Natural Gas Sampler

Abstract

The utility model discloses a portable natural gas sampler, which relates to the technical field of natural gas sampling, and includes a sampler body, a connecting pipe and a sampling head. The side wall of the sampler body is connected with a retractable connecting pipe, the lower end of the sampler body is connected with a sampling head, the connecting pipe and the sampling head are both provided with air valves, a sampling mechanism is provided inside the sampler body, and a protective mechanism is fixedly connected to the side wall of the sampler body. In the utility model, the sampling mechanism is used to realize the smooth up and down movement of the top plate, and the piston is driven to move smoothly, and the movement is not easy to change the position due to external force collision, so that sampling is more convenient, the sampler body can temporarily store the sampled gas, and the protective mechanism is used to realize the protective cover to shield and protect the sampling head when not in use.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas sampling, in particular to a portable natural gas sampler. Background Art

[0002] In the production process, natural gas is generally purified first and then liquefied at ultra-low temperature, and finally transported in tanks. In order to ensure the safe use of natural gas, a natural gas sampler is needed to perform sampling and testing during its production to ensure that it meets safety standards. For example, a liquefied natural gas sampler is recorded in the patent announcement number CN211904742U. The recorded solution allows the sampling head to be disassembled, replaced and inspected through the installed fastening screw and fixed nut to avoid damage to the sampling head. The installed stretching ring allows the connecting pipe to be stretched and retracted, thereby improving the adjustability of the sampler. At the same time, the connecting pipe is connected to the outside of the sealing plate through the installed connecting pipe. If the inner cavity of the gas storage cavity cannot guarantee the accuracy of the natural gas taken out during sampling, it can be transported to a professional storage bottle for testing through the connecting pipe, and then the connecting pipe is opened and closed by stretching the baffle plate, so that the staff can get the sampled value in the first time, thereby improving the sampling accuracy. However, the solution in this case requires the staff to always hold the pull rod during the process of transporting the samples to professional storage bottles. If the pull rod moves, it will affect the sampling results and increase the workload of the staff. At the same time, there is a lack of protective structure for the sampling head, which affects the service life of the sampling head.

[0003] Based on this, a convenient natural gas sampler is now provided which can eliminate the drawbacks of the existing devices. Utility Model Content

[0004] The utility model aims to provide a convenient natural gas sampler to solve the problems in the background technology that the pull rod is easy to move, affecting the temporary storage of the sampled natural gas in the gas storage chamber and the sampling head lacks a protective structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A portable natural gas sampler comprises a sampler body, a connecting pipe and a sampling head. The side wall of the sampler body is connected with a retractable connecting pipe, the lower end of the sampler body is connected with a sampling head, the connecting pipe and the sampling head are both provided with gas valves, a sampling mechanism for stably sampling natural gas is provided inside the sampler body, and a protective mechanism for preventing the sampling head from being damaged is fixedly connected to the side wall of the sampler body.

[0007] Preferably, the sampling mechanism includes an inner cavity partition plate fixedly connected to the inside of the sampler body, the inner cavity partition plate is slidably connected to the piston, the top surface of the piston is fixedly connected to the lower end of the first pull rod, the first pull rod is slidably connected to the top surface of the sampler body, the upper end of the first pull rod is fixedly connected to the bottom surface of the top plate, the top surface of the sampler body is fixedly connected to a mounting frame, three vertical grooves are equidistantly provided on the side of the mounting frame, the vertical grooves are slidably connected to the top plate, the top plate is threadedly connected to a threaded rod, both ends of the threaded rod are respectively connected to the mounting frame and the sampler body, the upper end of the threaded rod extends through the mounting frame and is fixedly connected to the drive assembly.

[0008] Preferably, the drive assembly includes a worm wheel fixedly connected to the threaded rod, the worm wheel is rotatably connected to the top surface of the mounting frame, the worm wheel is meshed with a worm, the worm is connected to the mounting frame via a support rod, and one end of the worm is fixedly connected to a knob.

[0009] Preferably, the protection mechanism includes a mounting block fixedly connected to the lower end of the side wall of the sampler body, and two mounting blocks are symmetrically arranged. The bottom surface of the mounting block is provided with a docking hole, and a connecting arm is inserted into the docking hole. The upper end of the connecting arm is provided with a snap-in groove, and the snap-in groove is connected to the locking assembly. The lower end of the connecting arm is fixedly connected to the protective cover.

[0010] Preferably, the locking assembly includes a locking block inserted into the locking groove, one side of the locking block is fixedly connected to the movable end of the telescopic rod, the fixed end of the telescopic rod is fixedly connected to the mounting block, a spring is sleeved on the outer surface of the telescopic rod, both ends of the spring are respectively fixedly connected to the mounting block and the locking block, the top surface of the locking block is fixedly connected to the second pull rod, and the second pull rod is slidably connected to the mounting block.

[0011] Preferably, the size of the clamping groove is adapted to that of the clamping block.

[0012] Preferably, a protection groove is provided on the protection cover.

[0013] Preferably, a bearing is fixedly connected to the support rod, and the bearing is rotatably connected to the worm.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The present application realizes the upward and downward movement of the top plate through the cooperation of the inner cavity partition plate, the piston, the first pull rod, the top plate, the mounting frame, the threaded rod, the worm gear and the worm, and the speed is steady during the movement, and the position will not change due to collision. The top plate moves steadily, driving the piston to move, so the piston is not likely to change position, and sampling is more convenient. The sampler body can temporarily store the sampled gas.

[0016] 2. The present application realizes the rapid installation and removal of the protective cover through the coordination of the mounting block, the second pull rod, the connecting arm, the protective cover, the snap-in block, the snap-in groove, the telescopic rod and the spring. When not in use, the protective cover shields the sampling head. When in use, the protective cover is removed to avoid affecting the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the cutaway structure of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the protective cover of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the locking assembly of the utility model.

[0022] Notes on figure marks: sampler body 101, connecting tube 102, sampling head 103, sampling mechanism 200, inner cavity partition plate 201, piston 202, first pull rod 203, top plate 204, mounting frame 205, threaded rod 206, worm gear 207, worm 208, protection mechanism 300, mounting block 301, second pull rod 302, connecting arm 303, protection cover 304, snap-in block 305, snap-in groove 306, telescopic rod 307, spring 308. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Example 1

[0025] See also Figure 1-Figure 5 A portable natural gas sampler comprises a sampler body 101, a connecting tube 102 and a sampling head 103. The side wall of the sampler body 101 is connected with a retractable connecting tube 102. The lower end of the sampler body 101 is connected with a sampling head 103. Both the connecting tube 102 and the sampling head 103 are provided with gas valves. A sampling mechanism 200 for stably sampling natural gas is provided inside the sampler body 101. A protection mechanism 300 for preventing the sampling head 103 from being damaged is fixedly connected to the side wall of the sampler body 101.

[0026] See also Figure 2The sampling mechanism 200 includes an inner cavity partition plate 201 fixedly connected to the inside of the sampler body 101, the inner cavity partition plate 201 is slidably connected to the piston 202, the top surface of the piston 202 is fixedly connected to the lower end of the first pull rod 203, the first pull rod 203 is slidably connected to the top surface of the sampler body 101, the upper end of the first pull rod 203 is fixedly connected to the bottom surface of the top plate 204, the top plate 204 moves upward, driving the first pull rod 203 and the piston 202 to move upward to achieve sampling, the top surface of the sampler body 101 is fixedly connected to The mounting frame 205 has three vertical grooves equidistantly arranged on its side, the vertical grooves are slidably connected to the top plate 204, the vertical grooves realize the guidance and limitation of the movement of the top plate 204, the top plate 204 is threadedly connected to the threaded rod 206, the two ends of the threaded rod 206 are respectively connected to the mounting frame 205 and the sampler body 101, the upper end of the threaded rod 206 extends through the mounting frame 205 and is fixedly connected to the driving assembly, the driving assembly drives the threaded rod 206 to rotate, and the threaded rod 206 drives the top plate 204 threadedly connected thereto to move.

[0027] See also Figure 3 The driving assembly includes a worm wheel 207 fixedly connected to the threaded rod 206, the worm wheel 207 is rotatably connected to the top surface of the mounting frame 205, the worm wheel 207 is meshed with a worm 208, the worm 208 is connected to the mounting frame 205 through a support rod, one end of the worm 208 is fixedly connected to a knob, and the knob is turned to drive the worm 208 to rotate, the worm 208 drives the worm wheel 207 to rotate, and the worm wheel 207 drives the threaded rod 206 to rotate.

[0028] See also Figure 1-Figure 4 The protection mechanism 300 includes a mounting block 301 fixedly connected to the lower end of the side wall of the sampler body 101. Two mounting blocks 301 are symmetrically arranged. A docking hole is arranged on the bottom surface of the mounting block. A connecting arm 303 is inserted into the docking hole. A snap-in groove 306 is arranged at the upper end of the connecting arm 303. The snap-in groove 306 is connected to a locking assembly. The locking assembly realizes the installation and disassembly between the protection mechanism 300 and the sampling head 103. The lower end of the connecting arm 303 is fixedly connected to a protective cover 304. The protective cover 304 realizes the protection of the sampling head 103.

[0029] See also Figure 5The locking assembly includes a clamping block 305 plugged into the clamping slot 306, one side of the clamping block 305 is fixedly connected to the movable end of the telescopic rod 307, the fixed end of the telescopic rod 307 is fixedly connected to the mounting block 301, and a spring 308 is sleeved on the outer surface of the telescopic rod 307. 308 is compressed and reset under the elastic action of 308. The two ends of the spring 308 are respectively fixedly connected to the mounting block 301 and the clamping block 305. The top surface of the clamping block 305 is fixedly connected to the second pull rod 302, and the second pull rod 302 is slidably connected to the mounting block 301. The second pull rod 302 is pulled to one side, and the second pull rod 302 drives 305 to move, so that the clamping block 305 is disengaged from the clamping slot 306, thereby realizing the disassembly of the protection mechanism 300 to avoid affecting the sampling.

[0030] Example 2

[0031] The difference from Example 1 is that, please refer to Figure 5 The size of the snap-in slot 306 matches that of the snap-in block 305. The snap-in slot 306 is inserted into the snap-in block 305 to install the protective cover 304 and protect the sampling head 103. The snap-in slot 306 is separated from the snap-in block 305 to disassemble the sampling head 103 and avoid affecting the sampling.

[0032] See also Figure 4 The protection cover 304 is provided with a protection groove, and the protection groove is used to accommodate the sampling head 103 and protect it.

[0033] See also Figure 3 A bearing is fixedly connected to the support rod, and the bearing is rotatably connected to the worm 208. The setting of the bearing makes the rotation of the worm 208 more stable.

[0034] Working principle: connect the sampling head 103 to the output end of the tank body to be sampled, close the air valve on the sampling head 103, open the air valve on the sampling head 103, and rotate the worm 208, the worm 208 drives the worm wheel 207 to rotate, the worm wheel 207 drives the threaded rod 206 to rotate, because the top plate 204 is slidably connected with the mounting frame 205, the threaded rod 206 drives the top plate 204 to move upward, drives the first pull rod 203 and the piston 202 to move, realizes the sampling of natural gas, and closes the air valve on the sampling head 103 to avoid sampling natural gas. Leakage, the cavity formed by the inner cavity partition plate 201 can store the sampled gas for a short time. If more professional instruments are needed for detection, the sampling head 103 is connected to other equipment, and the air valve on the sampling head 103 is opened to introduce the sampled gas into the external equipment for detection. If the device is no longer in use, the connecting arm 303 is inserted into the mounting block 301. Under the action of the spring 308, the clamping block 305 is inserted into the clamping groove 306 to achieve connection. The protective cover 304 protects the sampling head 103 to avoid damage.

[0035] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A portable natural gas sampler, comprising a sampler body (101), a connecting pipe (102) and a sampling head (103), wherein the side wall of the sampler body (101) is connected with a retractable connecting pipe (102), the lower end of the sampler body (101) is connected with a sampling head (103), and the connecting pipe (102) and the sampling head (103) are both provided with gas valves, characterized in that: A sampling mechanism (200) for stably sampling natural gas is provided inside the sampler body (101), and a protection mechanism (300) for preventing the sampling head (103) from being damaged is fixedly connected to the side wall of the sampler body (101).

2. The portable natural gas sampler according to claim 1, characterized in that: The sampling mechanism (200) comprises an inner cavity partition plate (201) fixedly connected to the inside of the sampler body (101), the inner cavity partition plate (201) is slidably connected to the piston (202), the top surface of the piston (202) is fixedly connected to the lower end of the first pull rod (203), the first pull rod (203) is slidably connected to the top surface of the sampler body (101), the upper end of the first pull rod (203) is fixedly connected to the bottom surface of the top plate (204), and the sampler body (101) is fixedly connected to the top surface of the sampler body (101). A mounting frame (205) is fixedly connected to the top surface of the body (101), and three vertical grooves are equidistantly arranged on the side of the mounting frame (205), and the vertical grooves are slidably connected to the top plate (204), and the top plate (204) is threadedly connected to the threaded rod (206), and the two ends of the threaded rod (206) are respectively connected to the mounting frame (205) and the sampler body (101), and the upper end of the threaded rod (206) extends through the mounting frame (205) and is fixedly connected to the driving assembly.

3. The portable natural gas sampler according to claim 2, characterized in that: The driving assembly comprises a worm wheel (207) fixedly connected to the threaded rod (206); the worm wheel (207) is rotatably connected to the top surface of the mounting frame (205); the worm wheel (207) is meshed with a worm (208); the worm (208) is connected to the mounting frame (205) via a support rod; and one end of the worm (208) is fixedly connected to a knob.

4. The portable natural gas sampler according to claim 1, characterized in that: The protection mechanism (300) comprises a mounting block (301) fixedly connected to the lower end of the side wall of the sampler body (101), two mounting blocks (301) are symmetrically arranged, a docking hole is arranged on the bottom surface of the mounting block, a connecting arm (303) is inserted into the docking hole, a clamping groove (306) is arranged at the upper end of the connecting arm (303), the clamping groove (306) is connected to the locking assembly, and the lower end of the connecting arm (303) is fixedly connected to the protection cover (304).

5. The portable natural gas sampler according to claim 4, characterized in that: The locking assembly comprises a clamping block (305) plugged into the clamping groove (306); one side of the clamping block (305) is fixedly connected to the movable end of the telescopic rod (307); the fixed end of the telescopic rod (307) is fixedly connected to the mounting block (301); a spring (308) is sleeved on the outer surface of the telescopic rod (307); the two ends of the spring (308) are respectively fixedly connected to the mounting block (301) and the clamping block (305); the top surface of the clamping block (305) is fixedly connected to the second pull rod (302); and the second pull rod (302) is slidably connected to the mounting block (301).

6. The portable natural gas sampler according to claim 5, characterized in that: The size of the clamping groove (306) is adapted to that of the clamping block (305).

7. The portable natural gas sampler according to claim 5, characterized in that: The protection cover (304) is provided with a protection groove.

8. The portable natural gas sampler according to claim 3, characterized in that: A bearing is fixedly connected to the support rod, and the bearing is rotationally connected to the worm (208).

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