Roots screw vacuum unit body cooling circulating water recycling device

Abstract

The utility model relates to the technical field of Roots screw vacuum unit cooling, and discloses a Roots screw vacuum unit body cooling circulating water recycling device which comprises a freezing water pipe arranged in a water storage tank, an inner impeller arranged in the freezing water pipe and fixedly connected with a movable ring, the movable ring is in friction connection with a static ring, and the static ring is in friction connection with the water storage tank. The inner impeller is fixedly connected with the outer impeller, a check valve used for controlling the water level is arranged on one side of the freezing water pipe, and the check valve is fixedly connected with a water inlet pipe. Cooling water is recycled through the outer impeller, so that the cooling efficiency is improved, the operating temperature of the Roots screw vacuum unit is reduced, meanwhile, the situation that the cooling water is directly discharged into a sewage pipe network is avoided, water resources are saved, the sewage treatment cost is reduced, and the purpose of reducing the cost of a manufacturer is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for Roots screw vacuum units, specifically a device for reusing circulating water to cool the body of a Roots screw vacuum unit. Background Technology

[0002] A Roots screw vacuum unit consists of one screw vacuum pump and multiple Roots vacuum pumps. Each Roots screw vacuum unit consumes approximately 13 tons of circulating water per day for cooling the machine body to below 20°C. Cooling is achieved using a sampling cooling tower. However, the daily water consumption typically flows directly into the sewage network and then into the sewage treatment plant. Directly discharging this water into the sewage network increases the cooling and operating costs of the Roots screw vacuum unit, which contradicts the manufacturer's goal of cost reduction.

[0003] To address this, we propose a device for reusing circulating water for cooling the body of a Roots screw vacuum unit. Utility Model Content

[0004] The purpose of this invention is to provide a device for reusing circulating water for cooling the body of a Roots screw vacuum unit, in order to solve the problem mentioned in the background art that directly flowing this water into the sewage pipe network increases the cooling and operating cost of the Roots screw vacuum unit, which does not meet the manufacturer's goal of cost reduction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for reusing circulating water for cooling the body of a Roots screw vacuum unit, comprising a vacuum unit body, a connecting pipe fixedly connected to the water inlet end of the vacuum unit body, a connecting pipe fixedly connected to the water outlet end of a water pump, a connecting pipe two fixedly connected to the water pump inlet pipe, a water storage tank fixedly connected to the water storage tank, a chilled water pipe inside the water storage tank, an inner impeller inside the chilled water pipe, a moving ring fixedly connected to the inner impeller, a stationary ring frictionally connected to the moving ring, an outer impeller fixedly connected to the inner impeller, and a check valve for controlling the water level on one side of the chilled water pipe, the check valve fixedly connected to the water inlet pipe.

[0006] Preferably, the chilled water pipe is fixedly connected to the first sealing plate, and the first sealing plate is rotatably connected to the inner impeller.

[0007] Preferably, the inner impeller is provided with a pressure plate at its top, and the pressure plate tightly presses against the spring.

[0008] Preferably, the check valve includes a valve body, inside which a second sealing plate is rotatably connected, and the second sealing plate is fixedly connected to a float plate.

[0009] Preferably, one side of the second sealing plate is tightly pressed against the inner wall of the valve body, and the other side of the second sealing plate is slidably connected to the valve body.

[0010] Preferably, the float plate has a chilled water pipe on one side, the chilled water pipe has an inlet end and an outlet end.

[0011] Preferably, the outer impeller is located below the chilled water pipe, and the chilled water pipe is fixedly connected to the water storage tank.

[0012] Preferably, the water storage tank is fixedly connected to an inlet pipe, and a return pipe is provided on one side of the inlet pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a chilled water pipe inside a water storage tank, with an inner impeller installed inside the chilled water pipe. The inner impeller is fixedly connected to a rotating ring, and the rotating ring and stationary ring are connected by friction. An outer impeller is also fixedly connected to the inner impeller. A check valve is installed on one side of the chilled water pipe, and the check valve is fixedly connected to the inlet pipe. The outer impeller adds circulating cooling water, improving cooling efficiency, reducing the operating temperature of the Roots screw vacuum unit, and avoiding direct discharge into the sewage network. This saves water resources and reduces sewage treatment costs, thus meeting the manufacturer's cost reduction goals. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the chilled water pipe of this utility model;

[0016] Figure 2 This is an exploded view of the check valve structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal distribution structure of the water storage tank of this utility model;

[0018] In the diagram: 1. Vacuum machine body; 2. Connecting pipe; 3. Water pump; 4. Connecting pipe 2; 5. Water storage tank; 6. Chilled water pipe; 7. Inner impeller; 8. Moving ring; 9. Stationary ring; 10. Outer impeller; 11. Check valve; 12. Inlet pipe; 13. Pressure plate; 14. Spring; 15. Return pipe; 601. First sealing plate; 1101. Valve body; 1102. Second sealing plate; 1103. Float plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figures 1-3 The diagram illustrates a cooling circulating water reuse device for a Roots screw vacuum compressor unit. It includes a vacuum compressor body 1, a connecting pipe 2 fixedly connected to the water inlet of the vacuum compressor body 1, a water pump 3 fixedly connected to the water outlet of the water pump 3, a connecting pipe 4 fixedly connected to the water pump 3's inlet, a water storage tank 5 fixedly connected to the water storage tank 5, a chilled water pipe 6 inside the water storage tank 5, an inner impeller 7 inside the chilled water pipe 6, a moving ring 8 fixedly connected to the inner impeller 7, a stationary ring 9 frictionally connected to the moving ring 8, an outer impeller 10 fixedly connected to the inner impeller 7, and a check valve 11 on one side of the chilled water pipe 6 for controlling the water level. The check valve 11 is fixedly connected to the water inlet pipe 12. The outer impeller increases the circulating cooling water, improving cooling efficiency, reducing the operating temperature of the Roots screw vacuum compressor unit, and preventing direct discharge into the sewage network. This saves water resources and reduces sewage treatment costs, thus meeting the manufacturer's cost reduction objectives.

[0021] Furthermore, the chilled water pipe 6 is fixedly connected to the first sealing plate 601, and the first sealing plate 601 is rotatably connected to the inner impeller 7. The first sealing plate is fixedly connected to one end of the chilled water pipe. The first sealing plate and the inner impeller are connected by a rotatable connection, which effectively prevents the leakage of cooling water. At the same time, the inner impeller is driven to move by the cooling water flow, thereby improving the flow efficiency of the cooling water.

[0022] Furthermore, a pressure plate 13 is provided at the top of the inner impeller 7. The pressure plate 13 tightly presses against the spring 14. By designing a pressure plate at the top of the inner impeller and tightly pressing against the spring, a continuous clamping force is provided to the inner impeller, which effectively prevents the inner impeller from shaking and loosening during operation. This greatly improves the stability of the inner impeller and ensures the normal operation of the cooling system.

[0023] Furthermore, the check valve 11 includes a valve body 1101, with a second sealing plate 1102 rotatably connected inside the valve body 1101. The second sealing plate 1102 is fixedly connected to a float 1103. Through the key combination of the check valve, including the valve body, the second sealing plate, and the float, the check valve can automatically open and close according to the direction and pressure changes of the water flow without manual intervention. This automated control not only improves work efficiency but also reduces operating difficulty and maintenance costs.

[0024] Furthermore, one side of the second sealing plate 1102 is tightly pressed against the inner wall of the valve body 1101, while the other side is slidably connected to the valve body 1101. The design of one side of the second sealing plate tightly pressing against the inner wall of the valve body ensures seamless contact between the second sealing plate and the valve body, thus forming a reliable sealing effect. The other side of the second sealing plate is slidably connected to the valve body, allowing the second sealing plate to move flexibly within the valve body and open and close according to changes in water flow direction and pressure. When the water flow direction is correct, the second sealing plate opens smoothly, allowing water to pass through; when the water flow direction is reversed, the second sealing plate tightly presses against the inner wall of the valve body, forming an effective seal and preventing water leakage.

[0025] Furthermore, the float plate 1103 is provided with one side of the chilled water pipe 6. The chilled water pipe 6 has an inlet end and an outlet end. By providing the chilled water pipe with the side of the float plate, collisions between the float plate and the chilled water pipe are avoided, reducing equipment friction and improving the service life of the equipment.

[0026] Furthermore, the outer impeller 10 is located below the chilled water pipe 6, which is fixedly connected to the water storage tank 5. By cleverly positioning the outer impeller below the chilled water pipe, the outer impeller can make full use of its positional advantage to effectively stir and circulate the cooling water inside the water storage tank, thereby enhancing the cooling effect.

[0027] Furthermore, the water storage tank 5 is fixedly connected to the water inlet pipe 12, and a return water pipe 15 is provided on one side of the water inlet pipe 12. Through the combination of the water storage tank, the water inlet pipe and the return water pipe, the stable supply and smooth flow of cooling water are ensured, ensuring that the cooling water can smoothly enter the water storage tank, ensuring the sealing and stability of the connection, preventing water leakage and waste, realizing the recycling of cooling water, and improving the overall economy and environmental protection.

[0028] In this solution, the workflow is as follows: the water inlet of the vacuum machine body 1 is fixedly connected to the water outlet of the water pump 3 via the connecting pipe 2.

[0029] The water inlet pipe of water pump 3 is connected to water storage tank 5 through connecting pipe 4 to ensure a stable supply of cooling water.

[0030] The water storage tank 5 is equipped with chilled water pipes 6 for further cooling of the circulating water.

[0031] The chilled water pipe 6 is equipped with an inner impeller 7, which is connected to the stationary ring 9 by friction through the moving ring 8 to achieve sealing and transmission.

[0032] The inner impeller 7 is also fixedly connected to the outer impeller 10, which together act to agitate and cool the water.

[0033] A check valve 11 is provided on one side of the chilled water pipe 6 to control the water level. The check valve 11 is connected to the water inlet system of the water storage tank 5 through the water inlet pipe 12.

[0034] The chilled water pipe 6 is fixedly connected to the first sealing plate 601, and the first sealing plate 601 is rotatably connected to the inner impeller 7 to ensure that the inner impeller 7 can rotate flexibly inside the chilled water pipe 6.

[0035] The inner impeller 7 is provided with a pressure plate 13 at the top, which tightly presses against the spring 14 to adjust the rotation pressure or position of the inner impeller 7.

[0036] The check valve 11 includes a valve body 1101, and a second sealing plate 1102 is rotatably connected inside the valve body 1101.

[0037] The second sealing plate 1102 is tightly pressed against the inner wall of the valve body 1101 on one side to form a seal; the other side is slidably connected to the valve body 1101, allowing the second sealing plate 1102 to move within a certain range.

[0038] The second sealing plate 1102 is fixedly connected to the float plate 1103. The float plate 1103 floats according to the water level change, which drives the second sealing plate 1102 to open or close, controlling the direction of water flow.

[0039] Cooling water enters the water pump 3 from the water storage tank 5 through the connecting pipe 2 4 and is pumped to the vacuum machine body 1 for cooling.

[0040] The used cooling water returns through connecting pipe 2, and some of the water enters chilled water pipe 6 for further cooling.

[0041] The inner impeller 7 and the outer impeller 10 in the chilled water pipe 6 work together to agitate and cool the water.

[0042] The cooled water returns to the water storage tank 5 through the check valve 11 and the inlet pipe 12, forming a cycle.

[0043] The check valve 11 automatically adjusts according to changes in water level to ensure a stable water level in the reservoir 5.

[0044] A return water pipe 15 is provided on one side of the inlet pipe 12 to return excess water or water that does not need to be cooled immediately back to the water storage tank 5, thereby improving the flexibility and efficiency of the system.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for reusing circulating water for cooling the body of a Roots screw vacuum unit, characterized in that: The system includes a vacuum machine body (1), a connecting pipe (2) fixedly connected to the water inlet end of the vacuum machine body (1), a water pump (3) fixedly connected to the water outlet end of the connecting pipe (2), a connecting pipe (4) fixedly connected to the water inlet pipe of the water pump (3), a water storage tank (5) fixedly connected to the connecting pipe (4), a chilled water pipe (6) provided inside the water storage tank (5), an inner impeller (7) provided inside the chilled water pipe (6), a moving ring (8) fixedly connected to the inner impeller (7), a stationary ring (9) frictionally connected to the moving ring (8), an outer impeller (10) fixedly connected to the inner impeller (7), a check valve (11) for controlling the water level provided on one side of the chilled water pipe (6), and a water inlet pipe (12) fixedly connected to the check valve (11).

2. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 1, characterized in that: The chilled water pipe (6) is fixedly connected to the first sealing plate (601), and the first sealing plate (601) is rotatably connected to the inner impeller (7).

3. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 1, characterized in that: The inner impeller (7) is provided with a pressure plate (13) at the top, and the pressure plate (13) tightly presses against the spring (14).

4. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 1, characterized in that: The check valve (11) includes a valve body (1101), a second sealing plate (1102) is rotatably connected inside the valve body (1101), and a float plate (1103) is fixedly connected to the second sealing plate (1102).

5. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 4, characterized in that: The sealing plate (1102) is tightly pressed against the inner wall of the valve body (1101) on one side, and the second sealing plate (1102) is slidably connected to the valve body (1101) on the other side.

6. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 4, characterized in that: The float (1103) has a chilled water pipe (6) on one side, the chilled water pipe (6) has an inlet end and the chilled water pipe (6) has an outlet end.

7. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 1, characterized in that; The outer impeller (10) is located below the chilled water pipe (6), and the chilled water pipe (6) is fixedly connected to the water storage tank (5).

8. The device for reusing circulating water for cooling the body of a Roots screw vacuum unit according to claim 1, characterized in that; The water storage tank (5) is fixedly connected to the water inlet pipe (12), and a return water pipe (15) is provided on one side of the water inlet pipe (12).

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