Counter-flow type gas dissolving kettle

By designing a counter-current gas dissolving tank, and adopting a structure with a larger bottom and a smaller top, along with a counter-current dissolving method using a Venturi tube backflushing ring, the problems of uneven gas dissolution, high energy consumption, large footprint, high investment, and low gas utilization rate of existing gas dissolving equipment have been solved, achieving efficient and low-cost gas dissolution.

CN120961010APending Publication Date: 2025-11-18WUHAN BAOYUN MACHINERY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202410571325.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing dissolved gas equipment suffers from problems such as uneven gas dissolution, high energy consumption, large footprint, high equipment investment, and low gas utilization rate.

Method used

Design a counter-current gas dissolving tank with a tank structure that is larger at the bottom and smaller at the top. The internal partition is divided into a gas dissolving zone and a discharge zone. Gas-water mixing is achieved by using a Venturi tube and a backflush ring. Gas solubility is improved by counter-current dissolution. The supporting equipment includes a water pump and a gas tank to achieve efficient gas dissolution.

Benefits of technology

It achieves the effects of high gas solubility, low energy consumption, small footprint, high gas utilization rate and low cost, and is suitable for the efficient dissolution of gases such as ammonia, oxygen, chlorine and carbon dioxide.

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Abstract

A tank body is of a big-end-down necking structure, a water inlet pipe and a water outlet pipe are installed on the two lower sides of the tank body respectively, and a partition plate is installed in the tank body and divides the tank body into a gas dissolving area and a discharging area. The water inlet pipe is an L-shaped Venturi pipe, and the internal pressure of the container is increased by utilizing a Venturi pressurization technology; a back-flushing ring is mounted in the upper cover, and small molecular group water is obtained through water flow impact; overflow holes are formed in the partition plate. The water pump is connected with the water inlet pipe and conveys water into the tank from the bottom; the gas source conveys gas into the tank through the gas pipe interface; a gas-water mixture passes through the water inlet pipe, enters the dissolving area after being impacted by the back-flushing ring, and enters the lower discharge area through the overflow hole after staying in the dissolving area for a period of time, and water which is fully dissolved and carries gas is finally discharged through the water outlet pipe. The highly-dissolved gas-carrying water is obtained. The invention can be applied to various water-soluble gases required in the fields of chemical industry, pharmacy, medical treatment, food, beverage, chemical fertilizer, cosmetics, environmental governance, factory aquaculture and the like.
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Description

TECHNICAL FIELD

[0001] With the growth of China's economy, in the field of chemical, pharmaceutical, medical, chemical fertilizer, cosmetics, environmental governance, factory aquaculture, etc. There is an urgent need for a large number of various gas high-dissolved water. Therefore, to improve the production cost and efficiency of gas high-dissolved water has great market demand, and can also create considerable economic value. BACKGROUND

[0002] The existing gas dissolving equipment mainly includes various types of gas dissolving tanks, air floating gas dissolving machines, etc. The working principle of the gas dissolving equipment is: using mechanical force to disperse water into fine droplets, increasing the surface area of the water body and fully mixing with the gas; or injecting the gas into the water body and forming extremely small bubbles through the jet device to fully mix with the water body to achieve the purpose of dissolving. However, no matter which kind of gas dissolving method has the following shortcomings to varying degrees: such as uneven gas dissolving, high energy consumption, bubble escape, large floor area, high equipment investment, low gas utilization rate, etc. The existing gas dissolving method still has a lot of room for improvement, and the present application has the advantages of solving the above problems. SUMMARY

[0003] The purpose of the present application is to solve the problems of uneven gas dissolving, high energy consumption, large floor area, high equipment investment, and low gas utilization rate of the existing gas dissolving machine. A new type of gas dissolving equipment with simple structure, low energy consumption, high output, low investment, small floor area and high dissolution is provided.

[0004] The technical scheme of the present application comprises a new type of countercurrent gas dissolving tank, as shown in (1), which comprises: (1) a lifting ring, (2) an upper cover, (3) a tank body, (4) a backflush ring, (5) a pressure relief valve, (6) a water outlet pipe, (7) a sewage outlet, (8) a bottom plate, (9) a pressure gauge, (10) a water inlet pipe, (11) a partition plate, (12) an overflow hole, (13) a gas pipe interface, (14) a dissolving area, (15) a discharge area, (16) a first neck, (17) a second neck; and its matching equipment and installation, as shown in (2), which comprises: (18) a water pump, (19) a gas tank / gas making machine, (20) a gas conveying pipe, (21) a water outlet pipe, (22) a valve, (23) a check valve, (24) a filter screen. Figure 1 Figure 2 As shown in (1), the water pump (18) is connected to the water inlet pipe (10) of the tank body (3) through the water inlet pipe (20), and the water outlet pipe (21) of the tank body (3) is connected to the water outlet pipe (6) through the valve (22). The check valve (23) is connected between the water outlet pipe (21) and the water inlet pipe (20). The gas tank / gas making machine (19) is connected to the gas pipe interface (13) through the gas conveying pipe (20). The filter screen (24) is arranged in the gas conveying pipe (20).

[0005] As shown in (1), the water pump (18) is connected to the water inlet pipe (10) of the tank body (3) through the water inlet pipe (20), and the water outlet pipe (21) of the tank body (3) is connected to the water outlet pipe (6) through the valve (22). The check valve (23) is connected between the water outlet pipe (21) and the water inlet pipe (20). The gas tank / gas making machine (19) is connected to the gas pipe interface (13) through the gas conveying pipe (20). The filter screen (24) is arranged in the gas conveying pipe (20). Figure 1 ​As shown: Countercurrent dissolved gas tank, the tank body (3) has a narrowed structure with a larger bottom and a smaller top. The bottom is connected to the bottom plate (8). The water inlet pipe (10) and the water outlet pipe (6) are installed on the lower two sides respectively. The pressure relief valve (5) is installed on the upper part. The top narrowed section (16) is connected to the top cover (2). The internal partition (11) divides the tank into two areas: the dissolved gas area (14) and the discharge area (15). The bottom of the tank is equipped with a drain outlet (7). The water inlet pipe (10) is an L-shaped venturi pipe with a narrowed section (17) at the top. The lower part is connected to the lower side wall of the tank body (3) and extends out of the tank body. The part extending out of the tank body is equipped with a pressure gauge (9) and a gas pipe interface (13). The backwash ring (4) is installed inside the top cover (2). The top is equipped with a lifting ring (1). The partition (11) has an overflow hole (12).

[0006] like( Figure 2 As shown: the water pump (18) is connected to the water inlet pipe (10) to supply water into the tank; the gas tank / gas generator (19) is connected to the gas pipe interface (13) through the gas supply pipe (20) to supply gas into the tank; the gas-water mixture enters the dissolution zone (14) through the water inlet pipe (10); after staying for a period of time, it enters the lower discharge zone (15) through the overflow hole (12); the fully dissolved water carrying gas is finally discharged through the water outlet pipe (6) and enters the working environment.

[0007] The beneficial effects of this invention are: simple structure, high gas solubility, low energy consumption, small footprint, high gas utilization rate, and low cost. This invention is applicable to gases that are soluble in water, such as ammonia, oxygen, chlorine, and carbon dioxide. Attached Figure Description

[0008] Figure 1 The structural diagram of the dissolved gas reactor includes: (1) lifting ring, (2) top cover, (3) tank body, (4) backflushing ring, (5) pressure relief valve, (6) water outlet pipe, (7) sewage outlet, (8) bottom plate, (9) pressure gauge, (10) water inlet pipe, (11) partition plate, (12) overflow hole, (13) gas pipe interface, (14) dissolving zone, (15) discharge zone, (16) constriction one, (17) constriction two;

[0009] Figure 2 The following are the supporting facilities and installation diagrams for the dissolved oxygen reactor: (18) water pump, (19) gas tank / gas generator, (20) gas transmission pipe, (21) water outlet pipe, (22) valve, (23) check valve, and (24) filter screen.

Claims

1. A counter-current dissolved gas reactor, comprising a tank body (3), a backflushing ring (4), an outlet pipe (6), an inlet pipe (10), a baffle plate (11), an overflow hole (12), a gas pipe interface (13), a water pump (18), and a gas source (19), characterized in that: A water pump (18) is connected to an inlet pipe (10) to pump water into the tank (3) from the bottom. An air source (19) delivers gas through an air pipe interface (13). The gas-water mixture enters the L-shaped inlet pipe (10) and is pressurized using the Venturi principle. It impacts the backwash ring (4) through the constriction (17) to form small water molecule clusters, which then enter the dissolution zone (14). The gas is highly dissolved under the combined action of high pressure and small water molecule clusters. The dissolved water carrying the gas enters the discharge zone (15) through the overflow hole (12) and is discharged through the outlet pipe (6).

2. The counter-current dissolved gas reactor according to claim 1, characterized in that... The tank (3) is divided into a dissolving zone (14) and a discharging zone (15) by a partition (11), and the two zones are connected by an overflow hole (12).

3. The counter-current dissolved gas reactor according to claim 1, characterized in that... The L-shaped water inlet pipe (10) is connected and fixed through the side wall of the tank (3) and the partition (11), and the top water outlet is a constricted structure.

4. The counter-current dissolved gas reactor according to claim 1, characterized in that: The L-shaped water inlet pipe (10) is a bottom water inlet structure. The water flow of the mixed gas enters the L-shaped water inlet pipe from below, passes through the partition (11) upwards, passes through the constriction two (17) structure, and then enters the dissolution zone (14).

5. The counter-current dissolved gas reactor according to claim 1, characterized in that... The top of the dissolution zone (14) is fitted with a recoil ring (3) consisting of one or more annular devices.

6. The counter-current dissolved gas reactor according to claim 1, characterized in that: The upper part of the tank (3) adopts a narrowed opening structure (16).

7. The counter-current dissolved gas reactor according to claim 1, characterized in that: The bottom water inlet structure is adopted. The water inlet pipe (10) passes through the tank (3), enters the discharge zone (15), and passes through the partition (11) to enter the dissolution zone (14).