Spiral defoaming exhaust device

Abstract

The utility model relates to the field of heating ventilation air conditioners, water supply equipment and water treatment equipment, and discloses a spiral defoaming exhaust device which comprises a tank body, an upper sealing head arranged at the upper end of the tank body, an exhaust pipeline arranged on the upper sealing head, a lower sealing head arranged at the lower end of the tank body, and a drainage pipeline arranged on the lower sealing head. A water inlet pipeline and a water outlet pipeline are arranged on the side surface of the tank body, an upper fixing plate and a lower fixing plate are arranged in the tank body, a plurality of spiral pipes are arranged between the upper fixing plate and the lower fixing plate, each spiral pipe is of a three-dimensional net-shaped structure formed by welding metal wires, and the spiral pipes are used for making contact with fluid entering the tank body. The spiral defoaming and exhausting device has a continuous exhausting function, can greatly shorten the starting time after primary water injection in a corresponding system, does not need to be emptied, efficiently removes microbubbles and a large amount of free gas, prolongs the service life of equipment, solves the problems of oxygen corrosion, water pump cavitation and the like in the system, and enables the system to operate efficiently.

Description

Technical Field

[0001] This utility model relates to the fields of heating, ventilation and air conditioning, water supply equipment and water treatment equipment, and in particular to a spiral defoaming and exhaust device. Background Technology

[0002] Because a certain amount of air exists in the water system, and the solubility of air decreases as temperature rises, gas will gradually separate from the water during water circulation, and gradually clump together to form large bubbles or even air columns. If this air is not removed in time, it will affect the normal circulation of the water system, causing uneven temperature in some parts of the system, insufficient heating and cooling, noise, and airlock. Oxygen in the air will cause pipe corrosion, accelerate equipment wear, and too many air bubbles will also cause corrosion and damage to equipment and components such as water pumps and heat exchangers.

[0003] Traditionally, mechanical air vents are installed at high points in the system or at local high points. These air vents can only remove a very small amount of gas from the system and cannot remove tiny air bubbles and free gas that flow with the water, thus failing to ensure the normal operation of the system. Utility Model Content

[0004] The purpose of this invention is to provide a spiral defoaming and exhaust device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spiral defoaming and venting device includes a tank body, an upper end cap with an venting pipe on the upper end cap, a lower end cap with a drain pipe on the lower end cap, an inlet pipe and an outlet pipe on the side surface of the tank body, an upper fixed plate and a lower fixed plate inside the tank body, and a plurality of spiral tubes between the upper and lower fixed plates. The spiral tubes are three-dimensional mesh structures made of welded metal wires. The spiral tubes are used to contact the fluid entering the tank body. Air bubbles in the fluid will adhere to the surface of the spiral tubes and aggregate. After aggregation, the air bubbles rise under the action of buoyancy and are discharged from the venting pipes.

[0007] As an alternative, both the upper and lower fixing plates are hollow structures, and the two ends of the central tube of the spiral tube are fixed to the upper and lower fixing plates respectively.

[0008] As an alternative, one spiral tube is located on the center line of the tank, and the remaining spiral tubes are evenly distributed around the circumference of the central spiral tube.

[0009] As an alternative, the wire can be made of copper or stainless steel.

[0010] As an alternative, the inlet and outlet pipes are located on the same axis, and the axis is perpendicular to the axis of each spiral pipe.

[0011] As an optional solution, the ports of the inlet and outlet water pipes are each equipped with connecting flanges.

[0012] As an alternative, a manual ball valve is installed on the exhaust pipe, and an automatic exhaust valve is installed at the outlet end of the manual ball valve.

[0013] As an optional solution, a drain valve is installed on the drainage pipe.

[0014] As an alternative, lifting lugs are provided on the upper end cap and on both sides of the exhaust pipe.

[0015] As an optional option, the tank body, upper head, and lower head are all made of stainless steel.

[0016] The beneficial effects of this utility model are as follows: This spiral defoaming and venting device has a continuous venting function, which can greatly shorten the start-up time after the initial water injection in the corresponding system, and does not require venting. It efficiently removes microbubbles and a large amount of free gas, extends the service life of the equipment, solves the problems of oxygen corrosion and water pump cavitation in the system, and enables the system to operate efficiently. Attached Figure Description

[0017] Figure 1 This is an external view of the spiral defoaming and exhaust device provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the spiral defoaming and exhaust device provided in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the spiral defoaming and venting device provided in this embodiment of the utility model with the upper end cap removed.

[0020] In the attached image:

[0021] 1. Tank body; 2. Upper end cap; 3. Exhaust pipe; 4. Lower end cap; 5. Drainage pipe; 6. Inlet pipe; 7. Outlet pipe; 8. Upper fixing plate; 9. Lower fixing plate; 10. Spiral pipe; 11. Connecting flange; 12. Manual ball valve; 13. Automatic exhaust valve; 14. Drain valve; 15. Lifting lug. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or a welded 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 based on the specific circumstances.

[0024] 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.

[0025] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] Please see Figures 1 to 3 As shown, this preferred embodiment provides a spiral defoaming and venting device, including a tank 1. The upper end of the tank 1 is provided with an upper end cap 2, and an venting pipe 3 is provided on the upper end cap 2. The lower end of the tank 1 is provided with a lower end cap 4, and a drain pipe 5 is provided on the lower end cap 4. A water inlet pipe 6 and a water outlet pipe 7 are provided on the side surface of the tank 1. An upper fixing plate 8 and a lower fixing plate 9 are provided inside the tank 1. A plurality of spiral tubes 10 are provided between the upper fixing plate 8 and the lower fixing plate 9. The spiral tubes 10 are three-dimensional mesh structures made of welded metal wires. The spiral tubes 10 are used to contact the fluid entering the tank 1. Small bubbles in the fluid will adhere to the surface of the spiral tubes 10 and aggregate into large bubbles. The large bubbles will have sufficient buoyancy to rise and be discharged from the venting pipe 3.

[0027] Therefore, this spiral defoaming and venting device has a continuous venting function, which can greatly shorten the start-up time after the initial water injection in the corresponding system, and does not require venting. It efficiently removes microbubbles and a large amount of free gas, extends the service life of the equipment, solves problems such as oxygen corrosion and water pump cavitation in the system, and enables the system to operate efficiently.

[0028] Preferably, the tank body 1, the upper end cap 2, and the lower end cap 4 are all made of stainless steel, and the tank body 1 is installed on the main circulation loop of the relevant system through the water inlet pipe 6 and the water outlet pipe 7.

[0029] Optionally, both the upper fixing plate 8 and the lower fixing plate 9 are hollow structures. The upper fixing plate 8 is preferably fixed at the connection between the tank body 1 and the upper end cap 2, and the lower fixing plate 9 is preferably fixed at the connection between the tank body 1 and the lower end cap 4. The two ends of the central tube of the spiral tube 10 are respectively fixed on the upper fixing plate 8 and the lower fixing plate 9 to ensure that each spiral tube 10 is reliably fixed. The outer mesh surface of the spiral tube 10 is connected to the central tube by a support rib.

[0030] Optionally, one spiral tube 10 is located on the center line of the tank 1, and the remaining spiral tubes 10 are evenly distributed around the central spiral tube 10. The number and size of the spiral tubes 10 are designed according to the different specifications of the tank 1 and the system flow requirements.

[0031] Preferably, the metal wire is made of copper or stainless steel, allowing the gas in the form of bubbles to adhere to the surface of the spiral tube 10, i.e., the mesh surface made of the metal wire, thereby causing free gas and microbubbles in the fluid to detach. In addition to the defoaming method of the spiral tube 10, Pall ring packing can also be used for defoaming and degassing.

[0032] Optionally, the inlet pipe 6 and the outlet pipe 7 are located on the same axis, and the axis is perpendicular to the axis of each spiral pipe 10, so as to reduce the power loss of the fluid and improve the defoaming efficiency.

[0033] Optionally, the ports of the inlet pipe 6 and the outlet pipe 7 are respectively provided with connecting flanges 11 to connect to system pipes or valves.

[0034] Optionally, a manual ball valve 12 is installed on the exhaust pipe 3, and an automatic exhaust valve 13 is installed at the outlet end of the manual ball valve 12. The automatic exhaust valve 13 automatically opens and closes according to the gas pressure accumulated in the tank 1 to achieve exhaust, and the automatic exhaust valve 13 can be easily disassembled and maintained through the manual ball valve 12.

[0035] Optionally, a drain valve 14 is provided on the drain pipe 5 to facilitate the discharge of system water and contaminants accumulated at the bottom during system maintenance.

[0036] Optionally, lifting lugs 15 are provided on the upper end cap 2 and on both sides of the exhaust pipe 3 to facilitate equipment installation and hoisting.

[0037] Specific principle: When the system water enters from the inlet pipe 6 on one side of the tank 1, the flow rate drops sharply. The spiral tube 10 can make the fluid contact the surface of all the spiral tubes 10. Small bubbles in the fluid will adhere to the contact surface of the spiral tubes 10. During the aggregation process, they will grow into larger bubbles. These larger bubbles will have enough buoyancy to rise to the top and gather together. Then they will be discharged through the automatic air vent valve 13 at the top. The defoaming system water flows out from the outlet pipe 7, achieving the purpose of air venting.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A spiral defoaming and exhaust device, characterized in that, The container includes a tank (1), with an upper end cap (2) at the upper end and an exhaust pipe (3) on the upper end cap (2). The container has a lower end cap (4) at the lower end and a drain pipe (5) on the lower end cap (4). The side surface of the container has an inlet pipe (6) and an outlet pipe (7). The interior of the container has an upper fixing plate (8) and a lower fixing plate (9). Several spiral tubes (10) are arranged between the upper fixing plate (8) and the lower fixing plate (9). The spiral tubes (10) are three-dimensional mesh structures made of welded metal wires. The spiral tubes (10) are used to contact the fluid entering the container (1). Air bubbles in the fluid will adhere to the surface of the spiral tubes (10) and aggregate. After aggregation, the air bubbles rise under the action of buoyancy and are discharged from the exhaust pipe (3).

2. The spiral defoaming and exhaust device according to claim 1, characterized in that, Both the upper fixing plate (8) and the lower fixing plate (9) are hollow structures, and the two ends of the central tube of the spiral tube (10) are respectively fixed on the upper fixing plate (8) and the lower fixing plate (9).

3. The spiral defoaming and exhaust device according to claim 1, characterized in that, One of the spiral tubes (10) is located on the center line of the tank (1), and the remaining spiral tubes (10) are evenly distributed around the circumference of the central spiral tube (10).

4. The spiral defoaming and exhaust device according to claim 1, characterized in that, The metal wire is made of copper or stainless steel.

5. The spiral defoaming and exhaust device according to claim 1, characterized in that, The inlet pipe (6) and the outlet pipe (7) are located on the same axis, and the axis is perpendicular to the axis of each of the spiral pipes (10).

6. The spiral defoaming and exhaust device according to claim 1, characterized in that, The inlet pipe (6) and the outlet pipe (7) are respectively provided with connecting flanges (11).

7. The spiral defoaming and exhaust device according to claim 1, characterized in that, A manual ball valve (12) is provided on the exhaust pipe (3), and an automatic exhaust valve (13) is provided at the outlet end of the manual ball valve (12).

8. The spiral defoaming and exhaust device according to claim 1, characterized in that, A drain valve (14) is installed on the drain pipe (5).

9. The spiral defoaming and exhaust device according to claim 1, characterized in that, The upper end cap (2) is provided with lifting lugs (15) on both sides of the exhaust pipe (3).

10. The spiral defoaming and exhaust device according to claim 1, characterized in that, The tank body (1), the upper end cap (2) and the lower end cap (4) are all made of stainless steel.

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