Sampler for online detection of isobutylene purity in tank trucks

Abstract

The present application discloses a sampler for online detection of isobutylene purity in a tank truck, belonging to the technical field of samplers. The sampler comprises a tank truck body and a sampling box, a first solenoid valve is provided on one side of the tank truck body, a side of the first solenoid valve is connected to the inlet of the sampling box, a gas detector is provided on the top of the sampling box, and a detection contact is provided on the bottom of the gas detector. The present application is provided with a sampling box, a first solenoid valve, a one-way valve and a filter box. When the first solenoid valve is started, the isobutylene inside the tank truck body is converted into gas and enters the sampling box. The gas inside the sampling box is monitored in real time through the detection contact. The value change of the purity of isobutylene can be understood online through the gas detector. The one-way valve assists in emptying the inside of the sampling box to ensure the accuracy of the purity monitored each time. The gas is discharged after being filtered through the activated carbon molecular sieve, avoiding direct emission to pollute the air.

Description

Technical Field

[0001] The present application relates to the technical field of samplers, and more particularly to a sampler for online detection of isobutylene purity in a tank truck. Background Art

[0002] Isobutylene has a wide range of uses. In the pesticide industry, it is mainly used to prepare organophosphorus insecticide terbuthion, pyrethroid insecticide permethrin, and acaricide pyridaben. At the same time, isobutylene is also widely used in light industry, oil refining, and medicine. Isobutylene usually needs to be liquefied into liquid for transportation.

[0003] In the related art, in order to solve the problem of hydrocarbon leakage caused by poor sealing, the patent with the prior art publication number CN218098445U provides a zero-leakage connection component for the outlet of a liquefied gas sampler, which relates to a sampler component. The sampling wire head ring is sleeved on the outside of the sampling needle, and the sampling wire head is welded and fixed to the sampling needle. The outside of the sampling needle is covered with a protective sleeve, and the protective sleeve is connected to the sampling wire head through a connector. The tee is connected to the sampling wire head, the auxiliary wire head and the adsorption valve, the auxiliary wire head is connected to the outlet of the sampler, and the adsorption valve is connected to the activated carbon assembly.

[0004] Although the above-mentioned prior art solutions solve the problems of insufficient sealing pressure and loose sealing through structural improvements, when the sampler is sampling, the air valve needs to be opened, and the liquid inside the tank body is converted into gas and discharged in small quantities. After the test is completed, the sampler needs to be emptied and wait for the next round of testing. Gaseous isobutylene cannot re-enter the tank body. If it is discharged directly, it will cause air pollution due to the toxicity of isobutylene.

[0005] In view of this, we propose a sampler for online detection of isobutylene purity in tank trucks. Utility Model Content

[0006] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a sampler for online detection of isobutylene purity in tank trucks, which solves the problem that when the sampler is sampling, the gas valve needs to be opened, and the liquid inside the tank body is converted into gas and discharged in small quantities. After the detection is completed, the sampler needs to be emptied and wait for the next round of detection. Gaseous isobutylene cannot re-enter the tank body. If it is directly discharged, it will cause pollution problems due to the toxicity of isobutylene.

[0007] Technical solution: To achieve the above-mentioned purpose, the utility model discloses a sampler for online detection of isobutylene purity of a tank truck, comprising a tank body of the tank truck and a sampling box, a first solenoid valve is arranged on one side of the tank body of the tank truck, one side of the first solenoid valve is connected to the inlet of the sampling box, a gas detector is arranged on the top end of the sampling box, a detection contact is arranged on the bottom end of the gas detector, and the end of the detection contact is embedded in the interior of the sampling box.

[0008] Preferably, a one-way valve is provided at the bottom end of the sampling box, and the gas flow of the one-way valve flows from bottom to top.

[0009] Preferably, the outlet of the sampling box is connected to a second solenoid valve, the output end of the second solenoid valve is connected to a filter box, an exhaust fan is provided on one side of the filter box, and a disassembly assembly is provided on the top of the filter box.

[0010] Preferably, a power supply box is provided at the bottom end of the filter box, and a controller is provided on one side of the power supply box. The controller is used to control the start of the valve, and the power supply box provides electrical energy for the controller and the exhaust fan.

[0011] Preferably, mounting plates are equidistantly arranged inside the filter box, and activated carbon molecular sieves are also arranged inside the mounting plates. The exhaust gas enters the mounting plate through the second solenoid valve and is filtered before being discharged.

[0012] Preferably, a cover plate is provided at the top end of the filter box, and a sealing ring is wrapped around the bottom end of the cover plate.

[0013] Preferably, the disassembly and assembly component includes a sliding groove and an auxiliary groove, and the sliding groove and the auxiliary groove are respectively opened on both sides of the filter box, a bidirectional threaded rod is arranged inside the sliding groove, and a moving block is symmetrically threaded on the outer side of the bidirectional threaded rod, and a concave plate is arranged on one side of the moving block, and a limiting bolt is installed on the internal thread of the concave plate, and the bottom end of the limiting bolt is against the top of the cover plate.

[0014] Preferably, the side of the concave plate away from the sliding groove is slidably connected to the auxiliary groove via a sliding block.

[0015] The utility model has the following technical effects:

[0016] The present application is provided with a sampling box, a first solenoid valve, a one-way valve and a filter box. When the first solenoid valve is started, the isobutylene inside the tank of the tank truck is converted into gas and enters the sampling box. The gas inside the sampling box will be monitored in real time through the detection contacts. The change in the purity value of isobutylene can be understood online through the gas detector. The one-way valve assists in emptying the inside of the sampling box to ensure the accuracy of the purity monitored each time. The gas is discharged after being filtered through the activated carbon molecular sieve, avoiding direct emission to pollute the air.

[0017] The present application is provided with a disassembly and assembly component. By rotating the bidirectional threaded rod, when the concave plate moves to the top of the cover plate, the limit bolt is rotated so that the bottom end of the limit bolt is against the top of the cover plate, and the bidirectional threaded rod drives the moving block to slide horizontally inside the sliding groove, separating the two concave plates on both sides of the filter box. By opening the cover plate, the activated carbon molecular sieve is easy to disassemble and regularly replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model;

[0019] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a three-dimensional structural diagram of the disassembly and assembly components of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter box of the utility model from top view;

[0022] Explanation of the numbers in the figure: 130, tank truck tank body; 140, first solenoid valve; 141, second solenoid valve; 150, sampling box; 151, one-way valve; 152, gas detector; 153, detection contact; 160, power supply box; 161, controller; 170, filter box; 171, exhaust fan; 172, cover plate; 173, mounting plate; 174, activated carbon molecular sieve; 200, disassembly and assembly components; 210, limit bolt; 211, concave plate; 212, bidirectional threaded rod; 213, sliding groove; 214, moving block; 215, auxiliary groove. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] See also Figure 1-4The utility model provides an embodiment: a sampler for online detection of isobutylene purity of a tank truck, comprising a tank truck tank body 130 and a sampling box 150. A first solenoid valve 140 is provided on one side of the tank truck tank body 130. One side of the first solenoid valve 140 is connected to the inlet of the sampling box 150. A gas detector 152 is provided on the top of the sampling box 150. A detection contact 153 is provided on the bottom of the gas detector 152. The end of the detection contact 153 is embedded in the interior of the sampling box 150. When the first solenoid valve 140 is started, the isobutylene inside the tank truck tank body 130 is converted into gas and enters the sampling box 150, which is similar to a gas tank. The liquid is inside the tank body and the gas is released. The gas inside the sampling box 150 will be monitored in real time through the detection contact 153. The change in the purity value of isobutylene can be understood online through the gas detector 152.

[0026] Furthermore, a one-way valve 151 is provided at the bottom of the sampling box 150, and the gas flow direction of the one-way valve 151 flows from bottom to top. The one-way valve 151 can only allow air to enter the sampling box 150, and cannot allow the sampled isobutylene to leave. It is mainly used to assist the exhaust fan 171 to suck the sampled gas into the filter box 170 for filtration. If there is no one-way valve 151, the sampled gas is difficult to be discharged cleanly from the sampling box 150. The sampled gas is filtered and adsorbed by the activated carbon molecular sieve 174, and then discharged through the exhaust fan 171, avoiding direct discharge to pollute the air.

[0027] Furthermore, a power supply box 160 is provided at the bottom end of the filter box 170 , and a controller 161 is provided on one side of the power supply box 160 . The controller 161 is used to control the start of the valve, and the power supply box 160 provides power energy for the controller 161 and the exhaust fan 171 .

[0028] Embodiment 2

[0029] The sampler for online detection of isobutylene purity in a tank truck proposed in the utility model is compared with the first embodiment. Figure 1-4 The outlet of the sampling box 150 is connected to the second solenoid valve 141, and the output end of the second solenoid valve 141 is connected to the filter box 170. An exhaust fan 171 is provided on one side of the filter box 170, and a disassembly assembly 200 is provided on the top of the filter box 170. The interior of the filter box 170 is equidistantly provided with mounting plates 173, and the interior of the mounting plate 173 is also provided with an activated carbon molecular sieve 174. The exhaust gas enters the mounting plate 173 through the second solenoid valve 141 and is filtered before being discharged. The top of the filter box 170 is provided with a cover plate 172, and the bottom end of the cover plate 172 is wrapped with a sealing ring. By opening the cover plate 172, it is easy to disassemble the activated carbon molecular sieve 174, and the activated carbon molecular sieve 174 is replaced regularly.

[0030] Furthermore, the disassembly and assembly component 200 includes a sliding groove 213 and an auxiliary groove 215, which are respectively opened on both sides of the filter box 170, and a bidirectional threaded rod 212 is arranged inside the sliding groove 213, and a moving block 214 is symmetrically threaded on the outer side of the bidirectional threaded rod 212, and a concave plate 211 is arranged on one side of the moving block 214, and a limiting bolt 210 is installed on the internal thread of the concave plate 211, and the bottom end of the limiting bolt 210 is against the top of the cover plate 172, and the side of the concave plate 211 away from the sliding groove 213 is slidably connected to the auxiliary groove 215 through a slider. By rotating the bidirectional threaded rod 212, the moving block 214 is driven to slide horizontally inside the sliding groove 213, and the two concave plates 211 are separated on both sides of the filter box 170. The cover 172 is opened, and when the concave plate 211 moves to the top of the cover 172, the limiting bolt 210 is rotated so that the bottom end of the limiting bolt 210 is against the top of the cover 172, thereby sealing and fixing the cover 172.

[0031] In summary, when the sampler for online detection of isobutylene purity of a tank truck disclosed in the embodiment of the present application is used, the first solenoid valve 140 is activated, and the isobutylene inside the tank body 130 of the tank truck is converted into gas and enters the sampling box 150, which is similar to a gas tank. The liquid inside the tank body is released as gas. The gas inside the sampling box 150 will be monitored in real time through the detection contact 153, and the change in the value of the isobutylene purity can be understood online through the gas detector 152. The one-way valve 151 can only allow air to enter the sampling box 150, but cannot allow the sampled isobutylene to leave. It is mainly used to assist the exhaust fan 171 to suck the sampled gas into the filter box 170 for filtration. If there is no one-way valve 151, the sampled gas is difficult to be discharged cleanly from the sampling box 150. By rotating the bidirectional threaded rod 212, the moving block 214 is driven to slide horizontally inside the sliding groove 213, and the two concave plates 211 are separated on both sides of the filter box 170. The cover 172 is opened, and when the concave plate 211 moves to the top of the cover 172, the limiting bolt 210 is rotated so that the bottom end of the limiting bolt 210 is against the top of the cover 172.

[0032] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sampler for online detection of isobutylene purity in a tank truck, characterized in that: The invention comprises a tank truck body (130), a filter box (170) and a sampling box (150), wherein a first solenoid valve (140) is arranged on one side of the tank truck body (130), and one side of the first solenoid valve (140) is connected to the inlet of the sampling box (150), and a gas detector (152) is arranged on the top end of the sampling box (150), and a detection contact (153) is arranged on the bottom end of the gas detector (152), and the end of the detection contact (153) is embedded in the interior of the sampling box (150).

2. The sampler for online detection of isobutylene purity in a tank truck according to claim 1, characterized in that: A one-way valve (151) is provided at the bottom end of the sampling box (150), and the gas flow direction of the one-way valve (151) flows from bottom to top.

3. The sampler for online detection of isobutylene purity in a tank truck according to claim 1, characterized in that: The outlet of the sampling box (150) is connected to a second solenoid valve (141), the output end of the second solenoid valve (141) is connected to a filter box (170), a blower (171) is provided on one side of the filter box (170), and a disassembly assembly (200) is provided at the top of the filter box (170).

4. The sampler for online detection of isobutylene purity in a tank truck according to claim 3, characterized in that: A power supply box (160) is arranged at the bottom end of the filter box (170), and a controller (161) is arranged on one side of the power supply box (160). The controller (161) is used to control the start of the valve, and the power supply box (160) provides power energy for the controller (161) and the exhaust fan (171).

5. The sampler for online detection of isobutylene purity in a tank truck according to claim 1, characterized in that: The interior of the filter box (170) is equidistantly provided with mounting plates (173), and the interior of the mounting plates (173) is also provided with an activated carbon molecular sieve (174). The exhaust gas enters the mounting plate (173) through the second solenoid valve (141) and is filtered before being discharged.

6. The sampler for online detection of isobutylene purity in a tank truck according to claim 1, characterized in that: The top end of the filter box (170) is engaged with a cover plate (172), and the bottom end of the cover plate (172) is wrapped with a sealing ring.

7. The sampler for online detection of isobutylene purity in a tank truck according to claim 3, characterized in that: The disassembly assembly (200) comprises a sliding groove (213) and an auxiliary groove (215), wherein the sliding groove (213) and the auxiliary groove (215) are respectively provided on both sides of the filter box (170), a bidirectional threaded rod (212) is provided inside the sliding groove (213), a moving block (214) is symmetrically threaded on the outer side of the bidirectional threaded rod (212), a concave plate (211) is provided on one side of the moving block (214), and a limiting bolt (210) is installed on the internal thread of the concave plate (211).

8. The sampler for online detection of isobutylene purity in a tank truck according to claim 7, characterized in that: The side of the concave plate (211) away from the sliding groove (213) is slidably connected to the auxiliary groove (215) via a sliding block.

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