Spiral defoaming exhaust device

Abstract

The invention 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 end socket is arranged at the upper end of the tank body, an exhaust pipeline is arranged on the upper end socket, a lower end socket is arranged at the lower end of the tank body, a drainage pipeline is arranged on the lower end socket, and 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] The invention 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 Art

[0002] Since there is a certain amount of air in the water system, and the solubility of air decreases with the increase of temperature, the gas will gradually separate from the water during the water circulation process, and gradually gather together to form large bubbles or even air columns. If the 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 air blockage. Oxygen in the air will cause pipeline corrosion and accelerate equipment wear. Too many bubbles will also cause corrosion and damage to equipment and components such as water pumps and heat exchangers.

[0003] The traditional practice is to install a mechanical exhaust valve at the high point or local high point of the system. This exhaust valve can only remove a very small amount of gas in the system, but cannot remove the tiny bubbles and free gas that follow the water flow, and thus cannot ensure the normal operation of the system. Summary of the invention

[0004] The object of the present invention is to provide a spiral defoaming and exhaust device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A spiral defoaming and exhaust device comprises a tank body, an upper end of the tank body is provided with an upper head, an exhaust pipeline is provided on the upper head, a lower end of the tank body is provided with a lower head, a drainage pipeline is provided on the lower head, a water inlet pipeline and a water outlet pipeline are provided on the side surface of the tank body, an upper fixing plate and a lower fixing plate are provided inside the tank body, a plurality of spiral tubes are provided between the upper fixing plate and the lower fixing plate, the spiral tube is a three-dimensional mesh structure made by welding metal wire, the spiral tube is used to contact with the fluid entering the tank body, bubbles in the fluid will adhere to the surface of the spiral tube and aggregate, and after aggregation, the bubbles rise under the action of buoyancy and are discharged from the exhaust pipeline.

[0007] As an optional solution, the upper fixing plate and the lower fixing plate are both hollow structures, and the two ends of the central tube of the spiral tube are respectively fixed on the upper fixing plate and the lower fixing plate.

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

[0009] As an option, the wire is made of copper or stainless steel.

[0010] As an optional solution, the water inlet pipeline and the water outlet pipeline are located on an axis, and the axis is perpendicular to the axial direction of each spiral tube.

[0011] As an optional solution, the port of the water inlet pipeline and the port of the water outlet pipeline are respectively provided with connecting flanges.

[0012] As an optional solution, a manual ball valve is provided on the exhaust pipeline, and an automatic exhaust valve is provided at the outlet end of the manual ball valve.

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

[0014] As an optional solution, lifting ears are provided on the upper head and on both sides of the exhaust pipe.

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

[0016] The beneficial effects of the present invention are as follows: the spiral defoaming and exhaust device has a continuous exhaust function, which can greatly shorten the startup time after the initial water injection in the corresponding system, and does not need to be vented, and can efficiently remove microbubbles and a large amount of free gas, thereby extending the service life of the equipment, solving the problems of oxygen corrosion and water pump cavitation in the system, and enabling the system to operate efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an appearance diagram of a spiral defoaming and exhaust device provided in an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of the spiral defoaming and exhaust device provided in an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the spiral defoaming and exhaust device provided in an embodiment of the present invention without the upper head.

[0020] In the attached figure:

[0021] 1. Tank body; 2. Upper head; 3. Exhaust pipeline; 4. Lower head; 5. Drain pipeline; 6. Water inlet pipeline; 7. Water outlet pipeline; 8. Upper fixing plate; 9. Lower fixing plate; 10. Spiral tube; 11. Connecting flange; 12. Manual ball valve; 13. Automatic exhaust valve; 14. Drain valve; 15. Lifting ear. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0026] See also Figures 1 to 3 As shown, the preferred embodiment provides a spiral defoaming and exhaust device, including a tank body 1, an upper head 2 is provided at the upper end of the tank body 1, an exhaust pipeline 3 is provided on the upper head 2, a lower head 4 is provided at the lower end of the tank body 1, a drainage pipeline 5 is provided on the lower head 4, a water inlet pipeline 6 and a water outlet pipeline 7 are provided on the side surface of the tank body 1, an upper fixed plate 8 and a lower fixed plate 9 are provided inside the tank body 1, a plurality of spiral tubes 10 are provided between the upper fixed plate 8 and the lower fixed plate 9, the spiral tube 10 is a three-dimensional mesh structure made of welded metal wire, the spiral tube 10 is used to contact with the fluid entering the tank body 1, small bubbles in the fluid will adhere to the surface of the spiral tube 10 and aggregate into large bubbles, and the large bubbles will have enough buoyancy to rise and be discharged from the exhaust pipeline 3.

[0027] Therefore, the spiral defoaming and exhaust device has a continuous exhaust function, which can greatly shorten the startup time after the initial water injection in the corresponding system without the need for venting, effectively remove microbubbles and a large amount of free gas, extend the service life of the equipment, solve problems such as oxygen corrosion and water pump cavitation in the system, and enable the system to operate efficiently.

[0028] Preferably, the tank body 1 , the upper head 2 and the lower head 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, the upper fixing plate 8 and the lower fixing plate 9 are both hollow structures. The upper fixing plate 8 is preferably fixed at the connection between the tank body 1 and the upper head 2, and the lower fixing plate 9 is preferably fixed at the connection between the tank body 1 and the lower head 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, and the outer mesh surface of the spiral tube 10 is connected to the central tube through support ribs.

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

[0031] Preferably, the metal wire is made of copper or stainless steel, so that the gas in the form of bubbles can adhere to the surface of the spiral tube 10, that is, the mesh surface made of the metal wire, thereby allowing the free gas and microbubbles in the fluid to be separated. In addition, in addition to the defoaming form of the spiral tube 10, a ball ring packing can also be used for defoaming and exhaust.

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

[0033] Optionally, the port of the water inlet pipeline 6 and the port of the water outlet pipeline 7 are respectively provided with connecting flanges 11 to respectively connect to system pipelines or valves.

[0034] Optionally, a manual ball valve 12 is provided on the exhaust pipeline 3, and an automatic exhaust valve 13 is provided at the outlet end of the manual ball valve 12. The automatic exhaust valve 13 automatically switches according to the gas pressure accumulated in the tank body 1 to achieve exhaust, and the manual ball valve 12 can be used to facilitate the disassembly and maintenance of the automatic exhaust valve 13.

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

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

[0037] Specific principle: When the system water flows into the tank 1 from the water inlet pipe 6 on one side of the tank body 1, the flow rate drops sharply, and the spiral tubes 10 can make the fluid contact with the surfaces of all the spiral tubes 10. Small bubbles in the fluid will adhere to the contact surface of the spiral tubes 10, and will grow into larger bubbles during the polymerization process. These larger bubbles will have enough buoyancy to rise to the top and gather together, and then be discharged through the automatic exhaust valve 13 on the top. The defoamed system water flows out from the water outlet pipe 7 to achieve the purpose of exhaust.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Spiral defoaming exhaust device, characterized in that: The invention comprises a tank body (1), wherein an upper end cap (2) is arranged at the upper end of the tank body (1), an exhaust pipe (3) is arranged on the upper end cap (2), a lower end cap (4) is arranged at the lower end of the tank body (1), a drainage pipe (5) is arranged on the lower end cap (4), a water inlet pipe (6) and a water outlet pipe (7) are arranged on the side surface of the tank body (1), an upper fixing plate (8) and a lower fixing plate (9) are arranged inside the tank body (1), a plurality of 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 by welding metal wires, the spiral tubes (10) are used to contact with the fluid entering the tank body (1), bubbles in the fluid will adhere to the surface of the spiral tube (10) and aggregate, and after aggregation, the 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: The upper fixing plate (8) and the lower fixing plate (9) are both 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 body (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 water inlet pipeline (6) and the water outlet pipeline (7) are located on an axis, and the axis is perpendicular to the axial direction of each spiral tube (10).

6. The spiral defoaming and exhaust device according to claim 1, characterized in that: The port of the water inlet pipeline (6) and the port of the water outlet pipeline (7) are respectively provided with a connecting flange (11).

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

8. The spiral defoaming and exhaust device according to claim 1, characterized in that: The drainage pipeline (5) is provided with a drainage valve (14).

9. The spiral defoaming and exhausting device according to claim 1, characterized in that: Lifting ears (15) are provided on the upper end cover (2) and 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 sealing head (2) and the lower sealing head (4) are all made of stainless steel.

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