Experimental oxygen-enriched water vacuum deoxidizing device

Abstract

The utility model provides a vacuum oxygen removal device for oxygen-enriched water for experiments, and aims to solve the technical problems that the conventional device is complicated in structure, large in occupied area and incapable of being applied to experimental research. The experimental oxygen-enriched water vacuum deoxygenization device comprises a tank body which is divided into an upper section, a middle section and a lower section, a vacuumizing opening is formed in the top end of the upper section and connected with a vacuumizing device, a water inlet is formed in the side wall of the upper section and connected with a spraying device, and the spraying device extends into the upper section; a baffling piece is fixedly mounted in the middle section; a water outlet is formed in the bottom end of the lower section. The device is simple in structure and small in occupied area, the flow guide piece is arranged in the middle section of the tank body, after oxygen-enriched water flows to the flow guide plate and is impacted, and oxygen in the water body overflows, the overflowed oxygen is pumped out of the tank body through the vacuum pump, the purpose of deoxidizing is achieved, no chemical agent is added in the whole deoxidizing process, secondary pollution of the water body is avoided, and the service life of the water body is prolonged. And the method is simple to operate and suitable for experimental research.

Description

Technical Field

[0001] This utility model relates to the field of oxygen-enriched water treatment technology, specifically to an experimental oxygen-enriched water vacuum deoxygenation device. Background Technology

[0002] Due to contact with air, natural water bodies such as rivers and lakes are rich in oxygen, with dissolved oxygen levels ranging from 5 to 10 mg / L. However, rivers and lakes are susceptible to agricultural and other pollution, leading to excessive total nitrogen (TN) levels. Currently, commonly used biological processes for TN removal mainly include autotrophic or heterotrophic denitrification. Both of these processes have requirements for influent dissolved oxygen, which needs to be below 2 mg / L. Furthermore, in the power and chemical industries, it is also necessary to control the dissolved oxygen in incoming water to a low level, as dissolved oxygen in water can cause corrosion of equipment (impellers, pipes, etc.), thus necessitating the removal of dissolved oxygen from the water.

[0003] Currently, there are various methods for removing dissolved oxygen from water, mainly divided into physical and chemical methods. Chemical methods require the addition of chemical reagents, which can easily lead to overdosing and secondary pollution. Physical methods mainly include vacuum deoxygenation and air stripping. Air stripping is more expensive and difficult to apply in engineering. Vacuum deoxygenation has advantages such as simple operation, strong controllability, and no secondary pollution. However, current vacuum deoxygenation devices are often used in large industrial sites, with complex structures and large footprints. Miniature and small-scale deoxygenation devices required by universities and research institutions are extremely rare.

[0004] Therefore, it is of great significance to study a miniaturized and simple experimental vacuum deoxygenation device. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that existing large-scale industrial vacuum deoxygenation devices cannot be applied to laboratory research, by providing a miniaturized, simple, and highly efficient vacuum deoxygenation device.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0007] An experimental oxygen-enriched water vacuum deoxygenation device includes a tank body divided into an upper section, a middle section, and a lower section. The upper section has a vacuum port at its top and is connected to a vacuum pumping device, and a water inlet on its side wall connected to a spraying device, the spraying device extending into the upper section. A baffle is fixedly installed inside the middle section. The lower section has a water outlet at its bottom.

[0008] As a preferred technical solution:

[0009] Optionally, a vacuum pressure gauge and a first valve are installed on the pipeline connecting the vacuum port and the vacuum pumping device, and the vacuum pumping device is a vacuum pump.

[0010] Optionally, the inlet is connected to an oxygen-enriched water supply tank pipeline, and an inlet pump and a second valve are installed on the pipeline; the outlet is connected to a water collection tank, and a third valve is installed on the pipeline.

[0011] Optionally, the spraying device includes a spray pipe and at least one spray head disposed on the bottom surface of the spray pipe.

[0012] Optionally, the baffle includes a connecting part and a baffle plate. The outer diameter of the connecting part fits the inner wall of the middle section with an interference fit. The baffle plate is located below the connecting part and is welded to or integrally formed with the connecting part.

[0013] Optionally, the connecting part includes a mesh ring and a mesh inside the mesh ring, the baffle is connected to the mesh, and the mesh ring is fitted to the inner wall of the middle section.

[0014] Optionally, there are several baffles arranged in an array, and their longitudinal cross-sections are S-shaped or Z-shaped. The shape of the longitudinal interface of the baffles of this utility model is not limited to this. Any baffle with other shapes that can change the direction of water flow and have an impact effect is within the scope of protection of this utility model.

[0015] Optionally, the lower section is also provided with a water level gauge seat or a water level observation window.

[0016] Optionally, the water level gauge tube base includes an upper connecting pipe, a lower connecting pipe, and a water level gauge tube. The upper connecting pipe and the lower connecting pipe are distributed alternately on the side wall of the lower section, and the upper connecting pipe and the lower connecting pipe are connected by the water level gauge tube. The water level observation window is set at the water level mark.

[0017] Optionally, a bracket or mounting base may be provided on the tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The experimental oxygen-enriched water vacuum deoxygenation device of this utility model, by setting a guide plate in the middle section of the tank, after the oxygen-enriched water flows to the guide plate and is impacted, the oxygen in the water overflows and is then extracted from the tank by a vacuum pump, thus achieving the purpose of deoxygenation. No chemical reagents are added during the entire deoxygenation process, avoiding secondary pollution of the water.

[0020] 2. The experimental oxygen-enriched water vacuum deoxygenation device of this utility model has a simple structure and is miniaturized. It can realize the production of low-oxygen water with small batches and controllable dissolved oxygen, and can be used for experimental verification in universities or research institutions.

[0021] 3. The experimental oxygen-enriched water vacuum deoxygenation device of this utility model is simple to operate and can achieve automated control. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0024] Figure 2 This is a top view of the baffle section;

[0025] Figure label:

[0026] 1-Vacuum port; 11-Vacuum pressure gauge; 12-First valve; 13-Vacuum pump; 2-Water inlet; 21-Oxygen-enriched water supply tank; 22-Water inlet pump; 23-Second valve; 24-Spray device; 241-Spray pipe; 242-Spray head; 3-Baffle; 31-Connecting part; 311-Wire mesh ring; 312-Grid; 32-Baffle plate; 4-Water outlet; 41-Third valve; 42-Water collection tank; 5-Water level gauge pipe seat; 51-Upper connecting pipe; 52-Water level gauge pipe; 53-Lower connecting pipe. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] This utility model embodiment provides an experimental oxygen-enriched water vacuum deoxygenation device, such as... Figure 1 As shown, it includes a tank body, on which a bracket or mounting base is installed, and is divided into an upper section, a middle section, and a lower section.

[0035] The upper section has a vacuum port 1 at the top and is connected to a vacuum device. A vacuum pressure gauge 11 and a first valve 12 are installed on the pipeline connecting the vacuum port 1 and the vacuum device. The vacuum device is a vacuum pump 13. The upper section has a water inlet 2 on its side wall and is connected to a spray device 24. The spray device 24 extends into the upper section. The outside of the water inlet 2 is connected to the pipeline of the oxygen-enriched water supply tank 21. A water pump 22 and a second valve 23 are installed on the pipeline. The spray device 24 includes a spray pipe 241 and at least one spray head 242 installed on the bottom surface of the spray pipe 241.

[0036] A flow deflector 3 is fixedly installed inside the middle section. The flow deflector 3 includes a connecting part 31 and a flow deflector plate 32. The outer diameter of the connecting part 31 fits against the inner wall of the middle section with an interference fit. The flow deflector plate 32 is located below the connecting part 31 and is welded to or integrally formed with the connecting part 31. There are several flow deflector plates 32 arranged in an array, and their longitudinal cross-section is S-shaped or Z-shaped (the figure shows a Z-shaped one, the S-shaped one is not shown, which is basically consistent with the wave-shaped flow deflector commonly used in the prior art). The connecting part 31 includes a mesh ring 311 and a mesh 312 inside the mesh ring 311, such as Figure 2 As shown, the baffle 32 is connected to the mesh 312, the mesh ring 311 is attached to the inner wall of the middle section, and the angle between the baffle and the connecting part is greater than 0° and less than 180°.

[0037] The lower section has an outlet 4 at its bottom, which connects to a water collection tank 42. A third valve 41 is installed on the pipeline. The lower section also has a water level gauge seat 5 or a water level observation window (not shown in the diagram, consistent with existing technology). The water level gauge seat 5 includes an upper connecting pipe 51, a lower connecting pipe 53, and a water level gauge tube 52. The upper connecting pipe 51 and the lower connecting pipe 53 are spaced apart on the side wall of the lower section and are connected by the water level gauge tube 52. The water level observation window is located at the guaranteed water level mark. The observation window can be made of transparent glass embedded in the side wall of the tank, and both are sealed. Its purpose at the guaranteed water level mark is to observe whether the water level entering the tank has reached the optimal water usage level, preventing the water level from being too high or too low, which could affect the deoxygenation effect.

[0038] This utility model device includes an inlet pump, a vacuum pump, a vacuum pressure gauge, spray heads, and control valves on various pipelines. The inlet pump pumps raw water from the oxygen-enriched water supply tank into the device's tank; the vacuum pump regulates the pressure inside the tank; the vacuum pressure gauge displays the pressure inside the tank in real time; the spray heads disperse the pumped raw water into the tank, causing it to fall onto the baffle plate to increase the contact area with air, thus facilitating the transfer of dissolved oxygen from the water into the air; the cavity in the upper section of the tank completes the deoxygenation process, and the deoxygenated water flows from the outlet into a collection tank under the control of a third valve for subsequent research.

[0039] The specific operating procedure is as follows: Connect all pipes and valves, ensuring all valves are closed. Open the first valve, then turn on the vacuum pump to bring the pressure inside the device to -0.08 MPa. Next, open the second valve and turn on the inlet pump to pump water into the tank. The first valve and vacuum pump can be adjusted according to the pressure inside the tank. Specifically, when the pressure is below -0.08 MPa, the vacuum pump can be turned off, and then the first valve closed. When the pressure is above -0.08 MPa, the first valve can be opened, and then the vacuum pump turned on. When the water volume reaches the designed level, ensuring the water level is reached, close the inlet pump and the second valve. Then, read the value of the vacuum pressure gauge to adjust the first valve and the vacuum pump, maintaining a pressure above -0.08 MPa for at least 5 minutes. The deoxygenated water can then flow out into the collection tank under gravity through the third valve. This process removes as much oxygen as possible; extending the time helps remove more oxygen, but the time should not be too long, as the subsequent deoxygenation effect will not increase proportionally. Therefore, adjustments need to be made according to the actual situation.

[0040] The experimental oxygen-enriched water vacuum deoxygenation device of this utility model has a simple structure, is small in size, and is easy to operate. The first valve, the second valve, and the third valve can be set as electromagnetic valves. The control system automatically controls the water flow, vacuuming operation, water flow rate, and water outflow after deoxygenation. Therefore, the deoxygenation efficiency is greatly improved, and it can realize the production of low-oxygen water with controllable dissolved oxygen in small batches for experimental verification in universities or research institutions.

Claims

1. An experimental oxygen-enriched water vacuum deaerating device, comprising a tank body divided into an upper section, a middle section and a lower section, characterized in that: The top end of the upper section is provided with a vacuum port and is connected with a vacuum device, the side wall is provided with a water inlet and is connected with a spraying device, the spraying device extends into the upper section; the middle section is internally fixedly installed with a baffle; the bottom end of the lower section is provided with a water outlet.

2. The experimental oxygen-enriched water vacuum deaerator according to claim 1, characterized in that: A vacuum pressure gauge and a first valve are installed on the pipeline connecting the vacuum port with the vacuum device, and the vacuum device is a vacuum pump.

3. The experimental oxygen-rich water vacuum deaerator according to claim 1, characterized in that: The water inlet is externally connected with a pipeline of an oxygen-rich water supply tank, a water inlet pump and a second valve are installed on the pipeline, and the water outlet is connected with a water collecting tank, a third valve being installed on the pipeline.

4. The experimental oxygen-enriched water vacuum deaerator according to claim 1, characterized in that: The spraying device comprises a spraying pipe and at least one spraying head arranged on the bottom surface of the spraying pipe.

5. The experimental oxygen-enriched water vacuum deaerator according to claim 1, characterized in that: The baffle comprises a connecting portion and a baffle plate, the outer diameter of the connecting portion is fitted with the inner wall of the middle section and the two are interference fit, and the baffle plate is located below the connecting portion and is welded or integrally connected with the connecting portion.

6. The experimental oxygen-rich water vacuum deaerator according to claim 5, characterized in that: The connecting portion comprises a mesh ring and a mesh inside the mesh ring, the baffle plate is connected to the mesh, and the mesh ring is fitted with the inner wall of the middle section.

7. The experimental oxygen-rich water vacuum deaerator according to claim 6, characterized in that: The baffle plate has a plurality of baffle plates arranged in an array, and the longitudinal section of the baffle plate is in the shape of S or Z.

8. The experimental oxygen-enriched water vacuum deaerator according to claim 1, characterized in that: The lower section is further provided with a water level gauge pipe seat or a water level observation window.

9. The experimental oxygen-rich water vacuum deaerator according to claim 8, characterized in that: The water level gauge pipe seat comprises an upper communication pipe, a lower communication pipe and a water level gauge pipe, the upper communication pipe and the lower communication pipe are distributed on the side wall of the lower section, and the upper communication pipe and the lower communication pipe are communicated through the water level gauge pipe; the water level observation window is arranged at the water level scale line.

10. The experimental oxygen-enriched water vacuum deaerator according to claim 1, characterized in that: A support or mounting base is arranged on the tank body.

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