Low-temperature ethylene sampling device

Abstract

The utility model belongs to the technical field of sampling devices, and particularly relates to a low-temperature ethylene sampling device which comprises a storage tank and a sampling assembly arranged on the storage tank, the sampling assembly comprises a sampling mechanism arranged on the storage tank and a sample storage mechanism arranged on the sampling mechanism; the sampling mechanism comprises a sampling barrel mounted on the storage tank and a sampling rod in threaded connection with the interior of the sampling barrel. Through the sampling assembly, the sampling rod can be rotated to enable the piston block I and the piston block II to move into the sampling barrel, low-temperature ethylene in the storage tank enters and is isolated and retained in the sampling barrel in the process, then the sampling rod continues to be rotated to enable the piston block I to cross the sample discharging hole, and then the low-temperature ethylene penetrates through the sample discharging hole to flow into the sample storage tank; and finally, the pull rod is pushed to push the cover plate into the connecting cylinder, the pull rod is rotated to separate the magnet, and the cover plate falls onto the limiting ring to complete the sealing of the sample storage tank, so that the safe sampling of low-temperature ethylene is realized, and the practicability is relatively high.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically a low-temperature ethylene sampling device. Background Technology

[0002] Low-temperature ethylene is the name for ethylene in its liquid state. In other words, what we see is ethylene product; low-temperature ethylene is a bottled liquid. Before the product, ethylene is in a liquid state at a temperature of -100 degrees Celsius and a pressure of 2.5 MPa. Low-temperature storage and transportation of liquid ethylene is beneficial for long-distance storage and transportation, and energy conservation is crucial in low-temperature ethylene storage and transportation systems.

[0003] Existing low-temperature ethylene sampling devices rely too heavily on manual operation, which can easily lead to leaks due to minor errors, resulting in environmental pollution and, in severe cases, personnel safety, posing certain safety hazards. Therefore, we have proposed a low-temperature ethylene sampling device. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A low-temperature ethylene sampling device includes: a storage tank and a sampling assembly disposed on the storage tank; the sampling assembly includes a sampling mechanism disposed on the storage tank and a sample storage mechanism disposed on the sampling mechanism; the sampling mechanism includes a sampling cylinder installed on the storage tank, a sampling rod threadedly connected to the sampling cylinder, a piston block one fixed to the end of the sampling rod, an adjusting rod threadedly connected to the middle of the sampling rod, a piston block two fixed to the end of the adjusting rod, and a sample discharge hole opened at the bottom of the sampling cylinder.

[0007] In a preferred embodiment, the present invention can be further configured as follows: the sample storage mechanism includes a connecting cylinder installed below the sample discharge hole, a sample storage container threaded to the end of the connecting cylinder, a side connecting cylinder communicating with the side of the connecting cylinder, a pull rod inserted into the side connecting cylinder, a piston block fixed to the end of the pull rod, and a sealing mechanism for sealing the sample storage container.

[0008] In a preferred embodiment, the present invention can be further configured such that the sealing mechanism includes a cover plate placed on three sides of the piston block, a magnet installed on the piston block and the cover plate, a control valve installed in the middle of the cover plate, and a limiting ring fixed at the opening of the sample storage tank.

[0009] In a preferred embodiment, the present invention can be further configured such that a turntable is fixed to the ends of both the sampling rod and the adjusting rod.

[0010] In a preferred embodiment, the present invention can be further configured such that an outer protective sleeve is provided on the outside of the sample storage container.

[0011] In a preferred embodiment, the present invention can be further configured such that the inner diameter of the limiting ring is the same as the diameter of the cover plate.

[0012] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] This invention utilizes a sampling assembly. By rotating the sampling rod, piston blocks one and two move into the sampling cylinder. During this process, low-temperature ethylene from the storage tank enters and is isolated within the sampling cylinder. Then, the sampling rod continues to rotate, causing piston block one to pass over the discharge hole. The low-temperature ethylene then flows through the discharge hole into the storage tank. Finally, the pull rod is pushed to push the cover plate into the connecting cylinder. Rotating the pull rod disengages the magnet, allowing the cover plate to fall onto the limiting ring, thus sealing the storage tank. This method achieves safe sampling of low-temperature ethylene and is highly practical. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the low-temperature ethylene sampling device of this utility model.

[0015] Figure 2 This is an enlarged view of point A of the low-temperature ethylene sampling device of this utility model;

[0016] Figure 3 This is an enlarged view of section B of the low-temperature ethylene sampling device of this utility model.

[0017] Figure label:

[0018] 100. Storage tank;

[0019] 200. Sampling assembly; 210. Sampling cylinder; 220. Sampling rod; 221. Turntable; 230. Piston block one; 240. Adjusting rod; 250. Piston block two; 260. Discharge hole;

[0020] 310. Connecting cylinder; 320. Sample storage container; 321. Outer sheath; 330. Side connecting cylinder; 340. Pull rod; 350. Piston block three; 360. Cover plate; 370. Magnet; 380. Control valve; 390. Limit ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of a low-temperature ethylene sampling device provided by this utility model.

[0024] Combination Figure 1-3 As shown, the present invention provides a low-temperature ethylene sampling device, comprising: a storage tank 100 and a sampling component 200 disposed on the storage tank 100.

[0025] The sampling assembly 200 includes a sampling mechanism disposed on the storage tank 100 and a sample storage mechanism disposed on the sampling mechanism; the sampling mechanism includes a sampling cylinder 210 installed on the storage tank 100, a sampling rod 220 threadedly connected to the sampling cylinder 210, a piston block 230 fixed to the end of the sampling rod 220, an adjusting rod 240 threadedly connected to the middle of the sampling rod 220, a piston block 250 fixed to the end of the adjusting rod 240, and a discharge hole 260 opened at the bottom of the sampling cylinder 210.

[0026] Furthermore, the sample storage mechanism includes a connecting cylinder 310 installed below the sample discharge hole 260, a sample storage container 320 threadedly connected to the end of the connecting cylinder 310, a side connecting cylinder 330 communicating with the side of the connecting cylinder 310, a pull rod 340 inserted into the side connecting cylinder 330, a piston block 350 fixed to the end of the pull rod 340, and a sealing mechanism for sealing the sample storage container 320.

[0027] Furthermore, the sealing mechanism includes a cover plate 360 ​​placed on the side of the piston block 350, a magnet 370 installed on the piston block 350 and the cover plate 360, a control valve 380 installed in the middle of the cover plate 360, and a limiting ring 390 fixed at the opening of the sample storage container 320.

[0028] It should be noted that by rotating the sampling rod 220 through the sampling assembly 200, piston block 1 230 and piston block 250 move into the sampling cylinder 210. During this process, the low-temperature ethylene in the storage tank 100 enters and is isolated and retained in the sampling cylinder 210. Then, by continuing to rotate the sampling rod 220, piston block 1 230 passes over the discharge hole 260, and then the low-temperature ethylene flows through the discharge hole 260 into the sample storage tank 320. Finally, the pull rod 340 is pushed to push the cover plate 360 ​​into the connecting cylinder 310. Rotating the pull rod 340 disengages the magnet 370, allowing the cover plate 360 ​​to fall onto the limiting ring 390, thus sealing the sample storage tank 320. This method achieves safe sampling of low-temperature ethylene and is highly practical.

[0029] On the other hand, both the sampling rod 220 and the adjusting rod 240 are fixed with a turntable 221. The rotation of the sampling rod 220 and the adjusting rod 240 can be controlled by the turntable 221. The rotation of the adjusting rod 240 can adjust the distance between the piston block 1 230 and the piston block 250, thereby adjusting the sampling amount as needed.

[0030] Furthermore, the outer side of the sample storage tank 320 is provided with an outer protective sleeve 321, which can prevent low-temperature ethylene from causing damage to the operator, which is quite reasonable.

[0031] Furthermore, the inner diameter of the limiting ring 390 is the same as the diameter of the cover plate 360, which allows the cover plate 360 ​​to fit and seal the end of the sample storage container 320 after it falls, thus serving as a seal.

[0032] The working principle and usage process of this utility model are as follows: First, rotate the adjusting rod 240 to adjust the distance between piston block 1 230 and piston block 250 to adjust the sampling amount. Then, rotate the sampling rod 220 to move piston block 1 230 and piston block 250 into the sampling cylinder 210. During this process, the low-temperature ethylene in the storage tank 100 enters and is isolated and stored in the sampling cylinder 210. Then, continue to rotate the sampling rod 220 to make piston block 1 230 pass over the discharge hole 260. Then, the low-temperature ethylene flows into the sample storage tank 320 through the discharge hole 260. Finally, push the pull rod 340 to push the cover plate 360 ​​into the connecting cylinder 310. Rotate the pull rod 340 to disengage the magnet 370 and make the cover plate 360 ​​fall onto the limiting ring 390 to complete the sealing of the sample storage tank 320. Finally, unscrew the sample storage tank 320 from the connecting cylinder 310.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cryogenic ethylene sampling device, characterized by, The application relates to a sampling device for a storage tank. The sampling device comprises a storage tank (100) and a sampling assembly (200) arranged on the storage tank (100). The sampling assembly (200) comprises a sampling mechanism arranged on the storage tank (100) and a sample storage mechanism arranged on the sampling mechanism. The sampling mechanism comprises a sampling cylinder (210) arranged on the storage tank (100), a sampling rod (220) threadedly connected in the sampling cylinder (210), a piston block one (230) fixed to the end of the sampling rod (220), an adjusting rod (240) threadedly connected to the middle part of the sampling rod (220), a piston block two (250) fixed to the end of the adjusting rod (240), and a sample discharging hole (260) arranged at the bottom of the sampling cylinder (210). The sample storage mechanism comprises a connecting cylinder (310) arranged below the sample discharging hole (260), a sample storage tank (320) threadedly connected to the end of the connecting cylinder (310), a side connecting cylinder (330) communicated with the side of the connecting cylinder (310), a pull rod (340) inserted into the side connecting cylinder (330), a piston block three (350) fixed to the end of the pull rod (340), and a cover mechanism for sealing the sample storage tank (320). The cover mechanism comprises a cover plate (360) arranged at the side of the piston block three (350), a magnet (370) arranged on the piston block three (350) and the cover plate (360), a control valve (380) arranged at the middle part of the cover plate (360), and a limiting ring (390) fixed to the opening of the sample storage tank (320).

2. A cryogenic ethylene sampling device according to claim 1, wherein, The end of the sampling rod (220) and the end of the adjusting rod (240) are both fixed with a rotating disc (221).

3. A cryogenic ethylene sampling device according to claim 1, wherein, The outer side of the sample storage tank (320) is provided with an outer sheath (321).

4. The low temperature ethylene sampling device of claim 1, wherein, The inner diameter of the limiting ring (390) is the same as the diameter of the cover plate (360).

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