A hydrochloric acid odor recovery device

Abstract

The utility model relates to the technical field of hydrochloric acid recovery, and in particular to a hydrochloric acid odor recovery device, comprising a base plate placed on the ground, the top of the base plate is fixedly connected to a hydrochloric acid storage tank, the bottom of the outer wall of the hydrochloric acid storage tank is fixedly connected to a hydrochloric acid delivery pump, the hydrochloric acid delivery pump is connected to a first air pipe through a gas delivery structure, the middle end of the first air pipe is provided with an air pump, the other end of the first air pipe is connected to a water absorption tower, a three-way valve is provided on the outer wall of the first air pipe, and the top of the base plate is fixedly connected to an alkali spray tower. The utility model can be provided with a water absorption tower and an alkali absorption tower, so that the waste gas generated by hydrochloric acid can be better purified after the water reaction and the alkali reaction, the pungent smell is alleviated, and it will not cause harm to the surrounding air and construction personnel, and the two devices connected by the three-way valve can share the purification of the waste gas, and the purification effect will not be reduced due to excessive absorption.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrochloric acid recovery, in particular to a hydrochloric acid odor recovery device. Background Art

[0002] Hydrochloric acid, with the chemical formula HCl, is an aqueous solution of hydrogen chloride (HCl), also known as hydrochloric acid. Hydrogen chloride is a colorless gas with a pungent odor. It is highly soluble in water. When hydrogen chloride gas is dissolved in water, hydrochloric acid is formed. The solution of hydrochloric acid is acidic and has strong irritation and corrosiveness, which is mainly due to the hydrogen ions (H) it contains. Hydrochloric acid has a wide range of uses in industry, such as cleaning and corrosion of metal materials, catalysts in chemical synthesis, and pharmaceutical, metallurgical and food industries. In the medical field, hydrochloric acid is also used to manufacture some drugs, such as some antacids and analgesics.

[0003] Hydrochloric acid is an important raw material for the production of liquid cationic etherifying agents. Due to its volatility, if necessary measures are not taken during its storage stage, a pungent odor will often be produced in the storage area, causing physical damage to the nearby air and surrounding construction workers. If it is directly discharged into the atmosphere, it will pollute the environment and have an adverse effect on the ecosystem and human health. Utility Model Content

[0004] The utility model aims to solve the disadvantage that, due to the volatility of hydrochloric acid, a pungent odor is often generated in the storage area during its storage stage if necessary measures are not taken, causing physical damage to the nearby air and surrounding construction workers, and a hydrochloric acid odor recovery device is proposed.

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

[0006] A hydrochloric acid odor recovery device comprises a base plate placed on the ground, the top of the base plate is fixedly connected to a hydrochloric acid storage tank, the bottom end of the outer wall of the hydrochloric acid storage tank is fixedly connected to a hydrochloric acid delivery pump, the hydrochloric acid delivery pump is connected to a first air pipe through a gas delivery structure, an air pump is provided at the middle end of the first air pipe, the other end of the first air pipe is through-connected to a water absorption tower, a three-way valve is provided on the outer wall of the first air pipe, and the top of the base plate is fixedly connected to an alkali solution spray tower.

[0007] Preferably, the gas delivery structure includes a hydrochloric acid delivery pipe, an ejector, and a gas connecting pipe, one end of the hydrochloric acid delivery pipe is connected to the hydrochloric acid delivery pump, the other end of the hydrochloric acid delivery pipe is connected to the ejector, the ejector is fixedly connected to the top of the hydrochloric acid storage tank, one end of the gas connecting pipe is connected to the air intake port of the ejector, and the other end of the gas connecting pipe is connected to the first air pipe.

[0008] Preferably, a placement plate is fixedly connected to the bottom end of the air pump, and the placement plate is fixedly connected to the outer walls of the hydrochloric acid storage tank and the water absorption tower respectively. A hole is opened on the outer wall of the placement plate, and the first air pipe passes through the hole and is slidably connected.

[0009] Preferably, a water pipe is connected through the outer wall of the water absorption tower, a water pump is fixedly connected to the outer wall of the water absorption tower, and evenly distributed fixed pipes are fixedly connected to the inner wall of the water absorption tower, and an annular pipe is provided at the middle end of the fixed pipe.

[0010] Preferably, one end of the water pipe passes through the outer wall of the top of the water absorption tower and is connected to the annular pipe. The top of the water absorption tower is connected to a first air outlet pipe, and a gas detector is arranged in the outer wall of the first air outlet pipe.

[0011] Preferably, the bottom end of the three-way valve is fixedly connected to one end of a second air pipe, the other end of the second air pipe is through-connected to the bottom end of the alkali solution spray tower, and a second air outlet pipe is provided at the top of the alkali solution spray tower.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the waste gas generated by the hydrochloric acid can be better purified after the water reaction and the alkali reaction through the water absorption tower and the alkali solution absorption tower, and the pungent smell can be alleviated without causing harm to the surrounding air and construction workers. In addition, the two devices connected by the three-way valve can share the purification of the waste gas, and the purification effect will not be reduced due to excessive absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a hydrochloric acid odor recovery device proposed by the utility model;

[0015] Figure 2 This is a half-cutaway three-dimensional structural schematic diagram of a hydrochloric acid odor recovery device proposed by the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of the internal three-dimensional structure of a water absorption tower of a hydrochloric acid odor recovery device.

[0017] In the figure: 1 bottom plate, 2 hydrochloric acid storage tank, 3 hydrochloric acid delivery pump, 4 first air pipe, 5 air pump, 6 water absorption tower, 7 three-way valve, 8 alkali solution spray tower, 9 hydrochloric acid delivery pipe, 10 ejector, 11 gas connecting pipe, 12 placement plate, 13 water pipe, 14 water pump, 15 fixed pipe, 16 annular pipe, 17 first air outlet pipe, 18 gas detector, 19 second air pipe, 20 second air outlet pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-Figure 3 A hydrochloric acid odor recovery device comprises a base plate 1 placed on the ground, a hydrochloric acid storage tank 2 is fixedly connected to the top of the base plate 1, a hydrochloric acid delivery pump 3 is fixedly connected to the bottom end of the outer wall of the hydrochloric acid storage tank 2, the hydrochloric acid delivery pump 3 is connected to a first air pipe 4 through a gas delivery structure, an air pump 5 is arranged at the middle end of the first air pipe 4, a water absorption tower 6 is connected to the other end of the first air pipe 4, a three-way valve 7 is arranged on the outer wall of the first air pipe 4, and an alkali solution spray tower 8 is fixedly connected to the top of the base plate 1.

[0020] It should be noted that the hydrochloric acid delivery pump 3, air pump 5, three-way valve 7, alkali solution spray tower 8, ejector 10, water pump 14, and gas detector 18 are all existing technologies. The specific model specifications need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0021] Furthermore, the gas delivery structure includes a hydrochloric acid delivery pipe 9, an ejector 10, and a gas connecting pipe 11. One end of the hydrochloric acid delivery pipe 9 is connected to the hydrochloric acid delivery pump 3, and the other end of the hydrochloric acid delivery pipe 9 is connected to the ejector 10. The ejector 10 is fixedly connected to the top of the hydrochloric acid storage tank 2, one end of the gas connecting pipe 11 is connected to the air intake port of the ejector 10, and the other end of the gas connecting pipe 11 is connected to the first air pipe 4.

[0022] The injection port of the ejector 10 is connected to the top of the hydrochloric acid storage tank 2, and the absorption port of the hydrochloric acid delivery pump 3 is connected to the bottom of the hydrochloric acid storage tank 2 through a pipeline.

[0023] Furthermore, a placement plate 12 is fixedly connected to the bottom end of the air pump 5, and the placement plate 12 is fixedly connected to the outer walls of the hydrochloric acid storage tank 2 and the water absorption tower 6 respectively. A hole is opened on the outer wall of the placement plate 12, and the first air pipe 4 passes through the hole and is slidably connected.

[0024] The main function of the placement plate 12 is to place the air pump 5 to avoid intersection with other pumps and cause a chain reaction.

[0025] Furthermore, a water pipe 13 is connected through the outer wall of the water absorption tower 6 , a water pump 14 is fixedly connected to the outer wall of the water absorption tower 6 , and evenly distributed fixed pipes 15 are fixedly connected to the inner wall of the water absorption tower 6 , and an annular pipe 16 is provided at the middle end of the fixed pipe 15 .

[0026] The fixed pipe 15 and the annular pipe 16 are interconnected, and evenly distributed atomizing nozzles are arranged at the bottom ends of the outer walls of the fixed pipe 15 and the annular pipe 16, so that the water flow can be evenly sprayed downward to fully contact with the hydrochloric acid gas.

[0027] Furthermore, one end of the water pipe 13 penetrates the outer wall of the top of the water absorption tower 6 and is connected to the annular pipe 16 . The top of the water absorption tower 6 is connected to a first air outlet pipe 17 , and a gas detector 18 is provided in the outer wall of the first air outlet pipe 17 .

[0028] The hydrochloric acid gas purified by water absorption can be discharged through the first gas outlet pipe 17. When the gas passes through the gas detector 18, the content of harmful substances in the gas can be detected. When it exceeds the standard, the staff can be reminded to intervene.

[0029] Furthermore, one end of a second air pipe 19 is fixedly connected to the bottom end of the three-way valve 7 , and the other end of the second air pipe 19 is connected to the bottom end of the alkali solution spray tower 8 . A second air outlet pipe 20 is provided at the top end of the alkali solution spray tower 8 .

[0030] Among them, the alkali solution spray tower 8 is a prior art, and part of the hydrochloric acid gas is guided into the alkali solution spray tower 8 through the three-way valve 7, and after the neutralization reaction with the alkali solution, an ideal purification effect is achieved.

[0031] Working principle: First, an appropriate amount of hydrochloric acid solution has been added to the hydrochloric acid storage tank 2 in advance, and then the hydrochloric acid delivery pump 3 and the ejector 10 are started. The hydrochloric acid delivery pump 3 extracts the hydrochloric acid solution from the hydrochloric acid storage tank 2 and delivers it to the ejector 10 through the hydrochloric acid delivery pipe 9, and then circulates it to the hydrochloric acid storage tank 2 through the ejector 10. The gas generated therein is transmitted to the first air pipe 4 through the gas connecting pipe 11, and then the air pump 5 is started. The air pump 5 extracts the gas and injects it into the water absorption tower 6 through the three-way valve 7. At the same time, the water pump 14 is started to first extract water from the outside and deliver it to the fixed pipe 15 through the water pipe 13. The annular tube 16 is sprayed toward the gas below, and the purified gas is discharged from the first outlet pipe 17. While being discharged, it is detected by the gas detector 18. When it does not meet the standards, the staff will be notified. At this time, the three-way valve 7 needs to be opened to allow the waste gas to be transported to the alkali solution spray tower 8 through the second air pipe 19, and finally discharged through the second outlet pipe, so that the pungent smell is alleviated, and no harm is caused to the surrounding air and construction workers. In addition, the two devices connected by the three-way valve can share the purification of the waste gas, and the purification effect will not be reduced due to excessive absorption.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydrochloric acid odor recovery device, comprising a base plate (1) placed on the ground, characterized in that: The top of the bottom plate (1) is fixedly connected to a hydrochloric acid storage tank (2), the bottom of the outer wall of the hydrochloric acid storage tank (2) is fixedly connected to a hydrochloric acid delivery pump (3), the hydrochloric acid delivery pump (3) is connected to a first air pipe (4) via a gas delivery structure, an air pump (5) is provided at the middle end of the first air pipe (4), the other end of the first air pipe (4) is through-connected to a water absorption tower (6), a three-way valve (7) is provided on the outer wall of the first air pipe (4), and the top of the bottom plate (1) is fixedly connected to an alkali solution spray tower (8).

2. A hydrochloric acid odor recovery device according to claim 1, characterized in that: The gas delivery structure comprises a hydrochloric acid delivery pipe (9), an ejector (10), and a gas connecting pipe (11); one end of the hydrochloric acid delivery pipe (9) is connected to a hydrochloric acid delivery pump (3); the other end of the hydrochloric acid delivery pipe (9) is connected to the ejector (10); the ejector (10) is fixedly connected to the top of a hydrochloric acid storage tank (2); one end of the gas connecting pipe (11) is connected to an air intake port of the ejector (10); and the other end of the gas connecting pipe (11) is connected to a first air pipe (4).

3. A hydrochloric acid odor recovery device according to claim 1, characterized in that: The bottom end of the air pump (5) is fixedly connected to a placement plate (12), and the placement plate (12) is fixedly connected to the outer walls of the hydrochloric acid storage tank (2) and the water absorption tower (6), respectively. The outer wall of the placement plate (12) is provided with a hole, and the first air pipe (4) passes through the hole and is slidably connected.

4. A hydrochloric acid odor recovery device according to claim 1, characterized in that: The outer wall of the water absorption tower (6) is connected to a water pipe (13), the outer wall of the water absorption tower (6) is fixedly connected to a water pump (14), the inner wall of the water absorption tower (6) is fixedly connected to evenly distributed fixed pipes (15), and the middle end of the fixed pipe (15) is provided with an annular pipe (16).

5. A hydrochloric acid odor recovery device according to claim 4, characterized in that: One end of the water pipe (13) penetrates the outer wall of the top end of the water absorption tower (6) and is connected to the annular pipe (16); the top end of the water absorption tower (6) is connected to a first gas outlet pipe (17); a gas detector (18) is provided in the outer wall of the first gas outlet pipe (17).

6. The hydrochloric acid odor recovery device according to claim 1, characterized in that: The bottom end of the three-way valve (7) is fixedly connected to one end of a second air pipe (19), the other end of the second air pipe (19) is connected to the bottom end of an alkali solution spray tower (8), and a second air outlet pipe (20) is provided at the top end of the alkali solution spray tower (8).

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