CN218937885U - Concentrated sulfuric acid sampling device - Google Patents

Abstract

The utility model provides a concentrated sulfuric acid sampling device, which comprises a sampling box, wherein an inlet pipe and an outlet pipe are arranged on the sampling box, a control valve is arranged at the outlet pipe, an extrusion communication structure is arranged in the inlet pipe, the extrusion communication structure comprises a communication cylinder, the upper end of the communication cylinder is sealed, the lower end of the communication cylinder is provided with a through hole, the side surface of the communication cylinder is provided with a through hole, the outer side surface of the bottom of the communication cylinder is fixedly connected with the inner wall of the inlet pipe through a first annular plate, the first annular plate is connected with a second annular plate through a first spring, and the second annular plate is sleeved on the outer side of the communication cylinder and is in sliding connection with the communication cylinder and the inner wall of the inlet pipe. The aim is that: when the sampling port samples, an operator can hold the sampler by both hands to sample, and the automatic sealing cover is arranged after sampling, so that the sprinkling is avoided, and the safety is improved.

Description

Concentrated sulfuric acid sampling device

Technical Field

The utility model relates to the technical field of concentrated sulfuric acid sampling, in particular to a concentrated sulfuric acid sampling device.

Background

Sulfuric acid is an active binary inorganic strong acid and can react with most metals. The high-concentration sulfuric acid has strong water absorption and can be used as a dehydrating agent for carbonizing substances containing carbohydrate, such as wood, paper, cotton and hemp fabrics, biological skin and meat, and the like. When mixed with water, a large amount of heat energy is also emitted. It is highly corrosive and oxidative and therefore needs to be used carefully. The sulfuric acid can also be used for manufacturing fertilizers, medicines, explosives, pigments, detergents, storage batteries and the like, and is also widely applied to industries of purifying petroleum, metal smelting, dyes and the like. Are commonly used as chemical reagents, and can be used as dehydrating agents and sulfonating agents in organic synthesis.

In the production process of industrial sulfuric acid, the sulfuric acid concentration of each working section is an important process index which needs to be accurately controlled, so that the sulfuric acid of each working section needs to be periodically sampled to analyze the concentration and impurities of the sulfuric acid.

The existing common sampling method is to take out the sulfuric acid liquid to be tested from a fixed sulfuric acid storage device by using a handheld sampler, or to dock and sample the sulfuric acid liquid from a sampling port or a valve of a pipeline, but when the sampler is taken down from the valve after sampling, the sampler needs to be held by one hand, the other hand is used for releasing the fixation of the sampler and the valve, but the sampler after sampling is heavier, the risk exists in one hand, and the closing cap operation needs to be completed manually after taking down, so that the sampler is troublesome and the risk of dumping is increased.

Disclosure of Invention

The utility model provides a concentrated sulfuric acid sampling device, which aims to: when the sampling port samples, an operator can hold the sampler by both hands to sample, and the automatic sealing cover is arranged after sampling, so that the sprinkling is avoided, and the safety is improved.

The embodiment of the utility model is realized by the following technical scheme:

the utility model provides a concentrated sulfuric acid sampling device, includes the sampling box, be provided with inlet tube and outlet pipe on the sampling box, the control valve is installed to outlet pipe department, install extrusion communication structure in the inlet tube, extrusion communication structure is including the intercommunication drum, the intercommunication drum upper end seals, and the lower extreme opening, and the side is provided with the through-hole, through first ring board and inlet pipe inner wall fixed connection on the intercommunication drum bottom lateral surface, there is the second ring board through first spring coupling on the first ring board, the second ring board cover is established the outside of intercommunication drum, and with intercommunication drum and inlet pipe inner wall sliding connection.

Further, the outside cover of first spring is equipped with flexible section of thick bamboo, the one end fixed mounting of flexible section of thick bamboo is in on the first ring board, the other end fixed mounting of flexible section of thick bamboo is in on the second ring board.

Further, a spiral tube is connected to one end of the inlet pipe located in the sampling box, and one end of the spiral tube away from the inlet pipe extends to the bottom of the sampling box.

Further, install the baffle in the sampling box, separate into two regions with the sampling box in, the intake pipe communicates with one of them region, the outlet pipe communicates with another region, sliding connection has the baffle that seals in the outlet pipe, the last fixedly connected with pull rod of baffle, the one end that seals the baffle was kept away from to the pull rod wears out sampling box and fixedly connected with handle, the pull rod overcoat is equipped with the second spring, the one end of second spring is fixed on the pull rod, and the other end is fixed on the inside roof of sampling box.

Further, the second spring jacket is provided with an isolation sleeve.

Further, the sampling box, the inlet pipe, the outlet pipe, the communicating cylinder, the first circular plate, the second circular plate, the telescopic cylinder and the isolation sleeve are made of polytetrafluoroethylene.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

through being provided with extrusion communication structure in the intake pipe department, place the sample mouth between intercommunication drum and intake pipe, utilize sample mouth extrusion second ring board to push down under the through-hole, intake pipe and sample mouth intercommunication take a sample, after the sample, close the sample mouth, take off sampling device, the second ring board is kick-backed under first spring effect, seals the intake pipe, avoids empting, above-mentioned operation need not control intake pipe and sample mouth with the hand, has increased the security of taking a sample.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of the present utility model;

fig. 2 is an enlarged view at a in fig. 1.

Icon: 1-sampling box, 2-inlet pipe, 3-outlet pipe, 4-control valve, 5-extrusion communication structure, 51-communication cylinder, 52-first annular plate, 53-through hole, 54-second annular plate, 55-first spring, 56-telescopic cylinder, 6-spiral pipe, 7-baffle, 8-blocking plate, 9-pull rod, 10-handle, 11-second spring, 12-isolation sleeve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

The utility model provides a concentrated sulfuric acid sampling device, includes sampling box 1, install baffle 7 in the sampling box 1, baffle 7 separates sampling box 1 into two regions, installs intake pipe 2 on sampling box 1, intake pipe 2's lower extreme intercommunication has spiral pipe 6, the one end that intake pipe 2 was kept away from to spiral pipe 6 extends to sampling box 1's bottom, and intake pipe 2 and spiral pipe 6 all are in sampling box 1's an region, installs outlet pipe 3 in sampling box 1 bottom, and outlet pipe 3 communicates with sampling box 1's another region, install control valve 4 on the outlet pipe 3, this control valve 4 is manual valve. The extrusion communication structure 5 is arranged at the inlet of the inlet pipe 2, the extrusion communication structure 5 comprises a communication cylinder 51, the upper end of the communication cylinder 51 is sealed, the lower end of the communication cylinder is provided with a through hole 53 on the side surface, the outer side surface of the bottom of the communication cylinder 51 is fixedly connected with the inner wall of the inlet pipe 2 through a first annular plate 52, a second annular plate 54 is connected to the first annular plate 52 through a first spring 55, and the second annular plate 54 is sleeved on the outer side of the communication cylinder 51 and is in sliding connection with the communication cylinder 51 and the inner wall of the inlet pipe 2. The inlet pipe 2 is designed to be larger than the sampling port, which is larger than the communication cylinder 51.

During sampling, the inlet pipe 2 is aligned with the sampling port, the device is pushed upwards, the sampling port extrudes the second annular plate 54 and the first spring 55, when the second annular plate 54 is extruded below the round hole, the sampling port is communicated with the inlet pipe 2, concentrated sulfuric acid flows down along the spiral pipe 6 to the bottom of the sampling box 1 along the inlet pipe 2, and the slope surface can be prolonged through the spiral pipe 6 to avoid splashing of the concentrated sulfuric acid. When the sampling is completed, the sampling port is closed, and the sealing of the inlet pipe 2 can be completed without pressing the second annular plate 54 by the sampling port.

The telescopic cylinder 56 and the isolation sleeve 12 are respectively sleeved outside the first spring 55 and the second spring 11, so that the first spring 55 and the second spring 11 are prevented from being corroded by concentrated sulfuric acid.

The outlet pipe 3 is connected with a blocking plate 8 in a sliding manner, a pull rod 9 is fixedly connected to the upper portion of the blocking plate 8, one end, far away from the blocking plate 8, of the pull rod 9 penetrates out of the sampling box 1 and is fixedly connected with a handle 10, a second spring 11 is sleeved outside the pull rod 9, one end of the second spring 11 is fixed on the pull rod 9, and the other end of the second spring 11 is fixed on the inner top wall of the sampling box 1. Through setting up baffle 7 and sealing plate 8, can be in the sample volume condition in the outside observation sampling box 1, confirm the volume of taking a sample through setting up baffle 7 height, highly surpass baffle 7 when concentrated sulfuric acid can overflow and flow to another region in the sampling box 1, and flow to sealing plate 8 on, sealing plate 8 overcomes the pulling force of second spring 11 under the gravity effect of part concentrated sulfuric acid and moves down to make handle 10 move down, the convenience of customers observes the condition of concentrated sulfuric acid sample volume in the sampling box 1.

The sampling box 1, the inlet pipe 2, the outlet pipe 3, the communication cylinder 51, the first annular plate 52, the second annular plate 54, the telescopic cylinder 56 and the isolation sleeve 12 are all made of polytetrafluoroethylene. Polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents, and is almost insoluble in all solvents. Meanwhile, polytetrafluoroethylene has the characteristic of high temperature resistance, and has extremely low friction coefficient, thereby being convenient for cleaning.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. Concentrated sulfuric acid sampling device, including sampling box (1), be provided with inlet tube (2) and outlet pipe (3) on sampling box (1), outlet pipe (3) department installs control valve (4), its characterized in that: install extrusion communication structure (5) in intake pipe (2), extrusion communication structure (5) are including intercommunication drum (51), the upper end of intercommunication drum (51) is sealed, and the lower extreme opening is provided with through-hole (53) to the side, through first ring board (52) and intake pipe (2) inner wall fixed connection on intercommunication drum (51) bottom lateral surface, be connected with second ring board (54) on first ring board (52) through first spring (55), second ring board (54) cover is established the outside of intercommunication drum (51), and with intercommunication drum (51) and intake pipe (2) inner wall sliding connection.

2. The concentrated sulfuric acid sampling device of claim 1, wherein: the outside cover of first spring (55) is equipped with flexible section of thick bamboo (56), the one end fixed mounting of flexible section of thick bamboo (56) is in on first ring board (52), the other end fixed mounting of flexible section of thick bamboo (56) is in on second ring board (54).

3. The concentrated sulfuric acid sampling device of claim 1, wherein: one end of the inlet pipe (2) positioned in the sampling box (1) is connected with a spiral pipe (6), and one end of the spiral pipe (6) away from the inlet pipe (2) extends to the bottom of the sampling box (1).

4. The concentrated sulfuric acid sampling device of claim 1, wherein: install baffle (7) in sample box (1), separate into two regions in with sample box (1), intake pipe (2) and one of them regional intercommunication, outlet pipe (3) and another regional intercommunication, sliding connection has sealing plate (8) in outlet pipe (3), sealing plate (8) last fixedly connected with pull rod (9), one end that sealing plate (8) was kept away from to pull rod (9) wears out sample box (1) and fixedly connected with handle (10), pull rod (9) overcoat is equipped with second spring (11), one end of second spring (11) is fixed on pull rod (9), and the other end is fixed on the inside roof of sample box (1).

5. The concentrated sulfuric acid sampling device of claim 4, wherein: and an isolating sleeve (12) is sleeved outside the second spring (11).

6. A concentrated sulfuric acid sampling device according to claim 2 or 5, characterized in that: the sampling box (1), the inlet pipe (2), the outlet pipe (3), the communicating cylinder (51), the first annular plate (52), the second annular plate (54), the telescopic cylinder (56) and the isolation sleeve (12) are made of polytetrafluoroethylene.

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