Gas-liquid separation exhaust flow limiting device

Abstract

The utility model discloses a gas-liquid separation exhaust flow limiting device which comprises a chemical barrel body, one end of the chemical barrel body is communicated with an input pipeline and a first output pipeline, the input pipeline is used for inputting nitrogen, and the first output pipeline is used for outputting chemicals; the first output pipeline is communicated with a pneumatic pump, and the output end of the pneumatic pump is communicated with a liquid-gas separator through a second output pipeline. The liquid-gas separator has the main effects that compressed gas detained in the liquid-gas separator can be effectively exhausted within controllable time under the action of the flow limiting ring, liquid cannot be exhausted to an exhaust pipe, and the influence on efficiency due to too long exhaust time cannot be caused.

Description

Technical Field

[0001] This utility model relates to the field of chemical transportation, and in particular to a gas-liquid separation exhaust flow limiting device. Background Technology

[0002] Currently, when transporting chemicals, it is necessary to use containers as intermediate storage. When using chemicals, it is necessary to extract the chemicals from inside the containers. However, there are many drawbacks. For example, when chemicals are first added to the containers, there is a lot of residual gas in the pipes. When extracting chemicals from the containers, it is easy to extract gas. In addition, in order to prevent the containers from collapsing, nitrogen is introduced into the containers. During the subsequent gas-liquid separation, if the gas pressure is high, liquid chemicals may be discharged. Utility Model Content

[0003] Purpose of the invention: The purpose of this utility model is to solve the defects of the prior art when the speed of venting excess gas from chemicals is uncontrollable and the container vents chemicals. It provides a gas-liquid separation venting and flow-limiting device that can vent the trapped compressed gas within a controllable time, so as not to cause liquid to be discharged into the exhaust pipe, nor to cause the venting time to be too long and affect efficiency.

[0004] Technical Solution: A gas-liquid separation exhaust flow limiting device is proposed, comprising a nitrogen tank. One end of the nitrogen tank is connected to an input pipe and a first output pipe. The input pipe is used to input nitrogen, and the first output pipe is used to output chemicals. The first output pipe is connected to a pneumatic pump. The output end of the pneumatic pump is connected to a liquid-gas separator through a second output pipe. The liquid-gas separator is provided with a drain pipe and an exhaust pipe. The exhaust pipe is provided with a flow limiting ring. The pneumatic pump is used to output liquid chemicals into the liquid-gas separator, the drain pipe is used to output liquid chemicals, the exhaust pipe is used to discharge excess gas, and the flow limiting ring is used to limit the exhaust speed.

[0005] Preferably, the flow-limiting ring is a hollow circular shape.

[0006] Preferably, the thickness of the current-limiting ring is 1-3 mm.

[0007] Preferably, the diameter of the hollow circular current-limiting ring is 0.5-2 mm.

[0008] Preferably, the exhaust pipe is a 3 / 8 or 1 / 2 inch pipe.

[0009] Preferably, the drain pipe extends to the bottom of the liquid-gas separator.

[0010] Preferably, a first liquid level detector is provided on one side of the liquid-gas separator, and a first pneumatic valve electrically connected to the first liquid level detector is provided on the exhaust pipe.

[0011] Preferably, a second pneumatic valve is provided on the first output pipe for closing the first output pipe.

[0012] Preferably, the first output pipe is equipped with a second liquid level detector for detecting the liquid level in the nitrogen tank.

[0013] Preferably, one end of the first output pipe extends to the bottom of the nitrogen cylinder.

[0014] Beneficial effects: Through the action of the flow-limiting ring, the compressed gas trapped in the liquid-gas separator can be effectively discharged within a controllable time, which will not cause the liquid to be discharged into the exhaust pipe, nor will it cause the exhaust time to be too long and affect efficiency. At the same time, through liquid level detection, the gas can be automatically discharged, which can effectively ensure the stable discharge of chemicals to the supply pipeline. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the current-limiting ring structure of this utility model.

[0017] Figure label:

[0018] 1. Chemical container; 2. Input pipe; 3. First output pipe; 4. Pneumatic pump; 5. Second output pipe; 6. Liquid-gas separator; 7. Flow limiting ring; 8. Drain pipe; 9. Exhaust pipe; 10. First liquid level detector; 11. First pneumatic valve; 12. Second pneumatic valve; 13. Second liquid level detector. Detailed Implementation

[0019] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but do not exclude other elements or objects.

[0023] In response to the problems existing in the current technology, combined with Figure 1-2 A gas-liquid separation exhaust flow limiting device includes a chemical tank 1. One end of the chemical tank 1 is connected to an input pipe 2 and a first output pipe 3. The input pipe 2 is used to input nitrogen gas (to maintain the pressure balance inside the chemical tank 1 and prevent the chemical tank 1 from collapsing). The first output pipe 3 is used to output chemicals. The first output pipe 3 is connected to a pneumatic pump 4. The output end of the pneumatic pump 4 is connected to a liquid-gas separator 6 through a second output pipe 5. The liquid-gas separator 6 is provided with a drain pipe 8 and an exhaust pipe 9. The exhaust pipe 9 is provided with a flow limiting ring 7. The pneumatic pump 4 is used to output chemical liquid into the liquid-gas separator 6, the drain pipe 8 is used to output chemical liquid, the exhaust pipe 9 is used to discharge excess gas, and the flow limiting ring 7 is used to limit the exhaust speed.

[0024] In some preferred embodiments, a first liquid level detector 10 is provided on one side of the liquid-gas separator 6, and a first pneumatic valve 11 electrically connected to the first liquid level detector 10 is provided on the exhaust pipe 9.

[0025] Specifically, the input pipe 2 inputs high-purity nitrogen into the interior of the chemical tank 1. When outputting chemicals, in order to maintain the pressure balance inside the chemical tank 1 and prevent the chemical tank 1 from collapsing, the chemical is supplied through the pneumatic pump 4 and the second pneumatic valve 12 by opening the pneumatic pump 4 and the second pneumatic valve 12 to the liquid-gas separator 6 through the first output pipe 3 and the second output pipe 5. Pure chemicals are then extracted from the liquid-gas separator 6 through the external supply pipe (drain pipe 8).

[0026] However, since the new chemical tank 1 is installed on the pipeline, the pipeline is initially empty. When the first output pipeline 3 extracts the chemical, it will draw the gas in the pipeline into the liquid-gas separator 6. Therefore, it is necessary to discharge the gas in the liquid-gas separator 6.

[0027] The liquid level (LS02) is preset on the liquid-gas separator 6. When the liquid level is detected to drop below the detection level (LS02), the first liquid level detector 10 will open the first pneumatic valve 11 to exhaust gas through the exhaust pipe 9. Through the action of the flow limiting ring 7, the compressed gas trapped in the liquid-gas separator 6 can be effectively discharged within a controllable time. This will not cause the liquid to be discharged into the exhaust pipe, nor will it cause the exhaust time to be too long and affect efficiency. Due to the action of the flow limiting ring 7, the gas can be discharged relatively slowly. The first pneumatic valve 111 will be closed only when the liquid level rises above the detection level (LS02). In specific implementation, the first liquid level detector 10, the first pneumatic valve 11 and the controller (not shown in the figure) can be electrically connected to achieve automatic control.

[0028] In some preferred embodiments, the flow-limiting ring 7 is a hollow circular shape.

[0029] In some preferred embodiments, the thickness of the current-limiting ring 7 is 1-3 mm.

[0030] In some preferred embodiments, the diameter of the hollow circular shape of the flow-limiting ring 7 is 0.5-2 mm.

[0031] In some preferred embodiments, the exhaust pipe 9 is 3 / 8 or 1 / 2 inch in size.

[0032] In some preferred embodiments, the drain pipe 8 extends to the bottom of the liquid-gas separator 6.

[0033] In some preferred embodiments, the first output pipe 3 is provided with a second pneumatic valve 12 for closing the first output pipe 3. When discharging chemicals into the supply pipe, the second pneumatic valve 12 can be opened, and when discharging chemicals is stopped, the second pneumatic valve 12 can be closed.

[0034] In some preferred embodiments, a second liquid level detector 13 is provided on the first output pipe 3 to detect the liquid level in the chemical container 1. The first output pipe 3 is set in an S-shape, and the second liquid level detector 13 can detect the liquid flow inside the first output pipe 3. When a large amount of gas enters the first output pipe 3, it is detected by the second liquid level detector 13 to detect whether there is still liquid chemical in the chemical container 1.

[0035] In some preferred embodiments, one end of the first output pipe 3 extends to the bottom of the chemical tank 1.

[0036] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this utility model patent should be determined by the appended claims.

Claims

1. A gas-liquid separation exhaust flow restriction device characterized by comprising: The utility model relates to a chemical tank, comprising a chemical tank (1), one end of the chemical tank (1) is provided with an input pipe (2) and a first output pipe (3) in communication, the input pipe (2) is used for inputting nitrogen, and the first output pipe (3) is used for outputting chemicals. The first output pipe (3) is communicated with a pneumatic pump (4), the output end of the pneumatic pump (4) is communicated with a liquid-gas separator (6) through a second output pipe (5), the liquid-gas separator (6) is provided with a liquid discharge pipe (8) and an exhaust pipe (9), the exhaust pipe (9) is provided with a flow limiting ring (7), the pneumatic pump (4) is used for outputting chemical liquid into the liquid-gas separator (6), the liquid discharge pipe (8) is used for outputting chemical liquid, the exhaust pipe (9) is used for discharging excess gas, and the flow limiting ring (7) is used for limiting exhaust speed.

2. The gas-liquid separation and exhaust flow restriction device according to claim 1, characterized by The flow limiting ring (7) is hollow circular.

3. The gas-liquid separation and exhaust flow restriction device according to claim 1, characterized by The thickness of the flow limiting ring (7) is 1-3mm.

4. The gas-liquid separation and exhaust flow restriction device according to claim 2, wherein The diameter of the hollow circle of the flow limiting ring (7) is 0.5-2mm.

5. The gas-liquid separation and exhaust flow restriction device according to claim 1, wherein The size of the exhaust pipe (9) is 3 / 8 or 1 / 2 inch pipe.

6. The gas-liquid separation and flow restriction device of claim 1, wherein, The liquid discharge pipe (8) extends to the bottom of the liquid-gas separator (6).

7. The gas-liquid separation and exhaust flow restriction device according to claim 1, wherein One side of the liquid-gas separator (6) is provided with a first liquid level detector (10), and the exhaust pipe (9) is provided with a first pneumatic valve (11) electrically connected with the first liquid level detector (10).

8. The gas-liquid separation and exhaust flow restriction device according to claim 1, wherein The first output pipe (3) is provided with a second pneumatic valve (12) for closing the first output pipe (3).

9. The gas-liquid separation and vent flow restriction device of claim 1, wherein, The first output pipe (3) is provided with a second liquid level detector (13).

10. The gas-liquid separation and flow restriction device of claim 1, wherein, One end of the first output pipe (3) extends to the bottom of the chemical tank (1).

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