Buffer tank for mixing formaldehyde desalinated water

Abstract

The utility model discloses a kind of buffer tanks for mixing formaldehyde desalination water, involve buffer tank field, including tank body, the inner wall of tank body is fixedly installed with mounting bracket, mounting bracket is fixedly installed with partition plate, partition plate divides into mixing zone and circulation zone in tank body, the bottom side of tank body is fixedly installed with air disc, air disc is arranged with gas nozzle, air disc is located in the range of mixing zone, stirring mechanism is arranged in the tank body, circulation mechanism is arranged in the outside of tank body, stirring mechanism includes stirring motor, stirring motor is fixedly installed with the top end of tank body, the output of stirring motor is fixedly installed with stirring shaft, the part of stirring shaft extending into partition plate is fixedly installed with stirring vane.The utility model is divided into mixing zone and circulation zone using partition plate in the inside of tank body, water is circulated between mixing zone and circulation zone using stirring vane drive, ensure that desalination water and formaldehyde are fully contacted, to produce formaldehyde aqueous solution of suitable concentration.

Description

Technical Field

[0001] This utility model relates to the field of buffer tank technology, and in particular to a buffer tank for mixing formaldehyde desalination water. Background Technology

[0002] Formaldehyde is a colorless liquid that is easily soluble in water. It is highly volatile and has a pungent odor. In industry, a 37% formaldehyde aqueous solution is generally used.

[0003] In existing technologies, formaldehyde aqueous solutions are frequently used in chemical production. In the chemical processes for producing hydrogen and carbon dioxide, a formaldehyde aqueous solution with a concentration of 20% is required. To ensure the safety and stability of production, a buffer tank for mixing formaldehyde desalination water is needed to meet these requirements. Utility Model Content

[0004] The purpose of this invention is to provide a buffer tank for mixing formaldehyde desalination water, in order to solve the problem mentioned in the background art of ensuring the safety and stability of production when preparing a formaldehyde aqueous solution with a concentration of 20%.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a buffer tank for mixing formaldehyde desalination water, comprising a tank body, an installation frame fixedly installed on the inner wall of the tank body, a partition plate fixedly installed on the installation frame, the partition plate dividing the tank body into a mixing zone and a circulation zone, an air plate fixedly installed on the bottom side of the tank body, an air nozzle arranged on the air plate, the air plate being located within the mixing zone, a stirring mechanism arranged inside the tank body, and a circulation mechanism arranged outside the tank body.

[0006] The tank is divided into a mixing zone and a circulation zone by a partition plate. Agitator blades drive water to circulate between the two zones, ensuring sufficient contact between the desalinated water and formaldehyde to produce a formaldehyde aqueous solution of appropriate concentration.

[0007] Preferably, the stirring mechanism includes a stirring motor, which is fixedly installed on the top of the tank, and a stirring shaft is fixedly installed on the output end of the stirring motor. A stirring blade is fixedly installed on a portion of the stirring shaft extending into the partition plate.

[0008] Preferably, an air pump is arranged on the bottom side of the tank, and an air filling pipe is fixedly installed at the output end of the air pump, which is connected to the air filling pan.

[0009] Preferably, the circulation mechanism includes a gas recovery pipe, the top end of which is fixedly installed on the top of the tank, a gas recovery pump is fixedly installed at the bottom of the gas recovery pipe, and a gas return pump is fixedly installed between the gas recovery pump and the gas plate.

[0010] Preferably, a formaldehyde concentration sensor is fixedly installed on the inner wall of the top side of the tank.

[0011] Preferably, four support feet are fixedly installed on the bottom side of the tank.

[0012] Preferably, a discharge pipe is fixedly installed on the bottom side of the tank, and an exhaust and water inlet is fixedly installed on the top side of the tank.

[0013] The beneficial effects of this utility model are:

[0014] 1) This utility model uses a partition plate inside the tank to divide it into a mixing zone and a circulation zone. The stirring blades drive the water to circulate between the mixing zone and the circulation zone, ensuring that the desalinated water and formaldehyde are in full contact, thereby producing a formaldehyde aqueous solution of appropriate concentration.

[0015] 2) This utility model utilizes a gas recovery pump to re-inject unabsorbed formaldehyde gas into the gas plate, allowing the formaldehyde gas to come into contact with the solution multiple times. By increasing the contact time, the utilization rate of formaldehyde is increased, while the emission of formaldehyde waste gas can also be reduced. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a buffer tank for mixing formaldehyde desalination water according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a buffer tank for mixing formaldehyde desalination water according to the present invention;

[0018] Figure 3 This is a bottom view of the structure of a buffer tank for mixing formaldehyde desalination water according to the present invention;

[0019] Figure 4 This is a cross-sectional structural schematic diagram of a formaldehyde desalination water mixing buffer tank according to the present invention.

[0020] In the diagram: 1. Tank body; 101. Mounting frame; 102. Divider plate; 103. Mixing zone; 104. Circulation zone; 105. Air plate; 106. Air nozzle; 107. Support leg; 108. Discharge pipe; 109. Exhaust and water inlet; 2. Stirring motor; 201. Stirring shaft; 202. Stirring blade; 3. Air pump; 301. Air supply pipe; 302. Formaldehyde concentration sensor; 303. Gas recovery pipe; 304. Gas recovery pump; 305. Gas return pump. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4A buffer tank for mixing formaldehyde desalination water includes a tank body 1. An mounting frame 101 is fixedly installed on the inner wall of the tank body 1. A partition plate 102 is fixedly installed on the mounting frame 101, dividing the tank body 1 into a mixing zone 103 and a circulation zone 104. An air plate 105 is fixedly installed on the bottom side of the tank body 1, with air nozzles 106 arranged on the air plate 105, located within the mixing zone 103. A stirring mechanism is arranged inside the tank body 1, and a circulation mechanism is arranged outside the tank body 1. The tank body 1 is divided into a mixing zone 103 and a circulation zone 104 by the partition plate 102. A stirring blade 202 drives water to circulate between the mixing zone 103 and the circulation zone 104, ensuring sufficient contact between the desalination water and formaldehyde, thereby producing a formaldehyde aqueous solution of appropriate concentration.

[0023] In an optional embodiment: the stirring mechanism includes a stirring motor 2, which is fixedly installed on the top of the tank 1, and a stirring shaft 201 is fixedly installed on the output end of the stirring motor 2. A stirring blade 202 is fixedly installed on a portion of the stirring shaft 201 extending into the partition plate 102.

[0024] It should be noted that the stirring motor 2 drives the stirring shaft 201 and the stirring blade 202 to rotate, and the stirring blade 202 breaks up small air bubbles to prevent them from agglomerating.

[0025] In an optional embodiment: a gas pump 3 is arranged on the bottom side of the tank 1, and a gas filling pipe 301 is fixedly installed at the output end of the gas pump 3, and the gas filling pipe 301 is connected to the gas plate 105.

[0026] It should be noted that the gas is injected into the tank 1 using the gas pump 3 and the gas filling pipe 301. The gas plate 105 and the gas nozzle 106 allow the formaldehyde to come into contact with the moisture in the form of small bubbles, thereby increasing the contact area between the formaldehyde gas and the moisture. This is to ensure that the formaldehyde gas is fully absorbed and to reduce waste.

[0027] In an optional embodiment: the circulation mechanism includes a gas recovery pipe 303, the top end of which is fixedly installed on the top of the tank 1, a gas recovery pump 304 is fixedly installed at the bottom of the gas recovery pipe 303, and a gas return pump 305 is fixedly installed between the gas recovery pump 304 and the gas plate 105.

[0028] It should be noted that by re-injecting the gas into the gas plate 105 and the gas nozzle 106 through the gas recovery pipe 303, gas recovery pump 304, and gas recovery pump 304, the formaldehyde gas is repeatedly exposed to moisture until the formaldehyde concentration sensor 302 detects that the formaldehyde content in the exhaust gas is low, thus avoiding the waste of formaldehyde resources.

[0029] In an optional embodiment: a formaldehyde concentration sensor 302 is fixedly installed on the inner wall of the top side of the tank 1.

[0030] In an optional embodiment, four support feet 107 are fixedly installed on the bottom side of the tank body 1.

[0031] In an optional embodiment: a discharge pipe 108 is fixedly installed on the bottom side of the tank body 1, and an exhaust and water inlet 109 is fixedly installed on the top side of the tank body 1.

[0032] Working principle of this utility model:

[0033] When using this device, firstly, a suitable amount of demineralized water needs to be filled into tank 1. Then, the demineralized water is injected into tank 1 using air pump 3 and air pipe 301. Air plate 105 and air nozzle 106 are used to make formaldehyde come into contact with water in the form of small bubbles, thereby increasing the contact area between formaldehyde gas and water. In order to ensure that formaldehyde gas is fully absorbed and reduce waste, stirring motor 2 drives stirring shaft 201 and stirring blade 202 to rotate. Stirring blade 202 breaks up small bubbles and prevents small bubbles from agglomerating. At the same time, it drives water to move downward and flows out from the bottom of partition plate 102 under the isolation of partition plate 102, and overflows back from the top, so that water and formaldehyde gas come into contact repeatedly. At the same time, the generated gas is reinjected into air plate 105 and air nozzle 106 through gas recovery pipe 303 and gas recovery pump 304, so that formaldehyde gas and water come into contact repeatedly until the formaldehyde concentration sensor 302 detects that the formaldehyde content in the exhaust gas is low, thus avoiding waste of formaldehyde resources.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A buffer tank for mixing formaldehyde desalination water, comprising a tank body (1), characterized in that: The inner wall of the tank (1) is fixedly equipped with a mounting bracket (101), and a partition plate (102) is fixedly installed on the mounting bracket (101). The partition plate (102) divides the tank (1) into a mixing zone (103) and a circulation zone (104). An air plate (105) is fixedly installed on the bottom side of the tank (1). An air nozzle (106) is arranged on the air plate (105). The air plate (105) is located within the mixing zone (103). A stirring mechanism is arranged inside the tank (1), and a circulation mechanism is arranged outside the tank (1).

2. The formaldehyde desalination water mixing buffer tank according to claim 1, characterized in that: The stirring mechanism includes a stirring motor (2), which is fixedly installed on the top of the tank (1). A stirring shaft (201) is fixedly installed at the output end of the stirring motor (2), and a stirring blade (202) is fixedly installed on a portion of the stirring shaft (201) extending into the partition plate (102).

3. The formaldehyde desalination water mixing buffer tank according to claim 1, characterized in that: A gas pump (3) is arranged on the bottom side of the tank (1), and a gas filling pipe (301) is fixedly installed at the output end of the gas pump (3). The gas filling pipe (301) is connected to the gas plate (105).

4. A buffer tank for mixing formaldehyde desalination water according to claim 1, characterized in that: The circulation mechanism includes a gas recovery pipe (303), the top end of which is fixedly installed on the top of the tank (1), and a gas recovery pump (304) is fixedly installed at the bottom of the gas recovery pipe (303). A gas return pump (305) is fixedly installed between the gas recovery pump (304) and the gas plate (105).

5. A buffer tank for mixing formaldehyde desalination water according to claim 1, characterized in that: A formaldehyde concentration sensor (302) is fixedly installed on the inner wall of the top side of the tank (1).

6. A buffer tank for mixing formaldehyde desalination water according to claim 1, characterized in that: The tank (1) is fixedly installed with four support feet (107) on its bottom side.

7. A buffer tank for mixing formaldehyde desalination water according to claim 1, characterized in that: A discharge pipe (108) is fixedly installed on the bottom side of the tank (1), and an exhaust water inlet (109) is fixedly installed on the top side of the tank (1).

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