A constant pressure water replenishment vacuum degassing unit for closed water system

Abstract

The present invention relates to the technical field of degassing units, and discloses a constant-pressure water-supplementing vacuum degassing unit for a closed water use system, comprising a mounting plate, a water inlet pipe fixedly connected to the top of the mounting plate, a water supply pump fixedly connected to the outer surface of the water inlet pipe through a pipeline, and a water supply pump fixedly connected to the outer surface of the water supply pipe. The constant-pressure water-supplementing vacuum degassing unit for a closed water use system drives a mounting ring to rotate back and forth through a first transmission mechanism, and the mounting ring drives a first cleaning ring frame and a second cleaning ring frame to rotate through a transmission column and a transmission plate, and at the same time supplies water to the flushing pipe through a water supply mechanism, and the flushing pipe flushes and cleans scale on the inner wall of the air pressure tank and the outer surface of the air bag through a flushing nozzle, and then moves the first cleaning ring frame and the second cleaning ring frame upward through the second transmission mechanism, thereby realizing comprehensive and automatic cleaning of the scale on the air pressure tank and the air bag, greatly improving the cleaning efficiency and cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of degassing units, and in particular to a constant-pressure water-supplementing vacuum degassing unit used in a closed water system. Background Art

[0002] The constant pressure water replenishment vacuum degassing unit is a new type of equipment that realizes the four-in-one functions of constant pressure, expansion, water replenishment and vacuum degassing in centralized heating and central air-conditioning systems. This equipment plays the role of stabilizing pressure, automatically replenishing water, automatically draining water during expansion, and removing free and dissolved gases in the system. The constant pressure water replenishment vacuum degassing unit can provide a pure and stable water source for heating and cooling systems to ensure the normal operation of the system.

[0003] When the existing vacuum degassing group is in use, since there is a certain amount of scale in the water, after a period of use, the scale is easy to adhere to the inner wall of the pressure tank and the air bag inside the pressure tank. When the accumulated scale is too thick, it will affect the normal operation of the entire unit. Therefore, it is necessary to clean the scale in the pressure tank in time. The current cleaning method requires manual dismantling of the unit and then cleaning the scale in the pressure tank. At the same time, during the cleaning process, due to the small internal space of the pressure tank, the scale in the pressure tank cannot be fully cleaned during cleaning, resulting in poor cleaning effect. At the same time, the unit needs to be shut down for cleaning and then dismantled for cleaning, which makes the unit unable to continue to be used, affecting the stability of the water supply and inconvenient for users. Summary of the Invention

[0004] The object of the present invention is to provide a constant pressure water replenishment vacuum degassing unit for a closed water system to solve the deficiencies in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A constant-pressure water replenishment vacuum degassing unit for a closed water system, comprising a mounting plate, a water inlet pipe fixedly connected to the top of the mounting plate, a water supply pump fixedly connected to the outer surface of the water inlet pipe via a pipe, an output end of the water supply pump fixedly connected to an outlet main pipe via a pipe, an air pressure tank fixedly connected to the outer surface of the outlet main pipe via a pipe, a pressure transmitter and a pressure gauge provided on the outlet main pipe, a first pipe fixedly connected to the outer surface of the outlet main pipe, a vacuum degassing tank fixedly connected to the mounting plate at one end, a second pipe fixedly connected to the water inlet pipe at the outer surface of the vacuum degassing tank, and electromagnetic valves provided on both the first and second pipes;

[0007] An airbag is fixedly connected to the air pressure tank. A scale cleaning mechanism is provided in the air pressure tank. The scale cleaning mechanism is used to clean the outer surface of the air pressure tank and the outer surface of the airbag.

[0008] As a further solution of the present invention: the scale cleaning mechanism includes a mounting ring rotatably connected to the air pressure tank, the bottom of the mounting ring is fixedly connected to two sliding rods, the outer surface of the sliding rod is slidably connected to a transmission plate, one side of the transmission plate is fixedly connected to a first cleaning ring frame slidably connected to the air pressure tank, one side of the first cleaning ring frame is fixedly connected to a sealing rubber ring, the other side of the transmission plate is fixedly connected to a second cleaning ring frame slidably connected to the airbag, multiple flushing pipes are fixedly connected in the first cleaning ring frame and the second cleaning ring frame, one end of the flushing pipe is fixedly connected to a flushing nozzle, one end of the flushing pipe is fixedly connected to a water supply mechanism connected to the air pressure tank, the first cleaning ring frame and the second cleaning ring frame are fixedly connected in the drain pipe, one end of the drain pipe is fixedly connected to the drainage mechanism connected to the air pressure tank, the inner surface of the mounting ring is transmission-connected to the first transmission mechanism connected to the air pressure tank, the outer surface of the air pressure tank is slidably connected to the second transmission mechanism connected to the mounting plate, the second transmission mechanism is used to drive the first cleaning ring frame to move up and down, and the first cleaning ring frame and the second cleaning ring frame are both provided with inclined grooves.

[0009] As a further solution of the present invention: a plurality of crushing knives are fixedly connected to the inner surfaces of the first cleaning circle frame and the second cleaning circle frame.

[0010] As a further solution of the present invention: the first transmission mechanism includes a transmission shaft rotatably connected to the air pressure tank, a first gear is fixedly sleeved on the outer surface of the transmission shaft, the outer surface of the first gear is meshedly connected to a transmission gear ring fixedly connected to the mounting ring, the top of the air pressure tank is fixedly connected to an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to a transmission rack slidably connected to the air pressure tank, and one side of the transmission rack is meshedly connected to a second gear fixedly sleeved on the transmission shaft.

[0011] As a further solution of the present invention: the second transmission mechanism includes two threaded rods rotatably connected to the mounting plate, the outer surface of the threaded rod is threadedly fitted with a transmission ring slidably connected to the air pressure tank, the top of the transmission ring is fixedly connected to a plurality of permanent magnet blocks, the bottom of the first cleaning ring frame is fixedly connected to a plurality of iron plates, and the outer surface of the threaded rod is transmission-connected to a driving mechanism.

[0012] As a further solution of the present invention: the driving mechanism includes a driving motor fixedly connected to the mounting plate, the output end of the driving motor is fixedly connected to the driving shaft through a coupling, the outer surface of the driving shaft is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshedly connected with a second driving gear fixedly sleeved with the threaded rod.

[0013] As a further solution of the present invention: the water supply mechanism includes a water pump fixedly connected to the air pressure tank, the output end of the water pump is fixedly connected to a first hose through a pipeline, one end of the first hose is fixedly connected to a water supply pipe, and both ends of the water supply pipe are fixedly connected to water supply ring pipes fixedly connected to the flushing pipe.

[0014] As a further solution of the present invention: the drainage mechanism includes a slurry pump fixedly connected to the air pressure tank, the input end of the slurry pump is fixedly connected to a second hose through a pipeline, one end of the second hose is fixedly connected to a discharge pipe, and both ends of the discharge pipe are fixedly connected to a discharge ring pipe fixedly connected to the drainage pipe.

[0015] As a further solution of the present invention: the outer surface of the mounting plate is fixedly connected to a support plate, the support plate is threadedly connected to a support bolt, the bottom end of the support bolt is fixedly connected to a support block, and the bottom of the mounting plate is fixedly connected to a universal wheel.

[0016] Beneficial effects of the present invention:

[0017] (1) The first transmission mechanism drives the mounting ring to rotate back and forth, and the mounting ring drives the first cleaning ring frame and the second cleaning ring frame to rotate through the transmission column and the transmission plate. At the same time, water is supplied to the flushing pipe through the water supply mechanism. The flushing pipe flushes and cleans the scale on the inner wall of the air pressure tank and the outer surface of the air bag through the flushing nozzle. Then, the first cleaning ring frame and the second cleaning ring frame are moved upward through the second transmission mechanism, thereby realizing comprehensive and automatic cleaning of the scale on the air pressure tank and the air bag, greatly improving the cleaning efficiency and cleaning effect.

[0018] (2) At the same time, during the cleaning process, the scale flushed down enters the first cleaning ring frame and the second cleaning ring frame. At the same time, the first cleaning ring frame and the second cleaning ring frame drive the crushing knife to rotate. The crushing knife crushes the larger scale that enters, making it easier for the scale to be discharged. As a result, the scale and cleaning water after cleaning are discharged in time, preventing the cleaning water and scale from entering the pressure tank and causing pollution to the water in the pressure tank. There is no need to shut down the unit, and the unit can be cleaned in the pressure tank during operation, further improving the stability of the water supply of the unit.

[0019] (3) Water is supplied through a water supply pump and then stored in a pressure tank. When the water is stored to a certain level, the water is then passed into a vacuum degassing tank through the cooperation of a solenoid valve and a pressure transmitter. The gas in the water is then degassed in a timely manner through the vacuum degassing tank. After the degassing is completed, the unit works, and this cycle is repeated to provide stable pressure water supply, which greatly improves the stability of the water supply of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a first stereoscopic diagram of the external structure of the present invention;

[0022] Figure 2 is a second stereoscopic view of the external structure of the present invention;

[0023] Figure 3 is a third stereoscopic view of the external structure of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the internal structure of the present invention;

[0025] Figure 5 This is a three-dimensional diagram of the external structure of the scale cleaning mechanism of the present invention;

[0026] Figure 6 This invention Figure 2 A magnified view of middle A;

[0027] Figure 7 This invention Figure 4 Enlarged view of middle B;

[0028] Figure 8 This invention Figure 3 Enlarged view of middle C;

[0029] Figure 9 This invention Figure 5 Enlarged view of D in the middle.

[0030] In the figure: 1. Mounting plate; 2. Water inlet pipe; 3. Water supply pump; 4. Outlet main pipe; 5. Air pressure tank; 6. First pipeline; 7. Vacuum degassing tank; 8. Second pipeline; 9. Air bag; 11. Mounting ring; 12. Sliding rod; 13. Transmission plate; 14. First cleaning ring frame; 15. Sealing rubber ring; 16. Second cleaning ring frame; 17. Flushing pipe; 18. Flushing nozzle; 19. Drain pipe; 190. Crushing knife; 191. Chute; 21. Transmission shaft; 22. First gear; 23. Transmission gear ring; 24. Electric telescopic rod; 25. Drive rack; 26. Second gear; 31. Threaded rod; 32. Drive ring; 33. Permanent magnet block; 34. Iron plate; 41. Drive motor; 42. Drive shaft; 43. First drive gear; 44. Second drive gear; 51. Water pump; 52. First hose; 53. Water supply pipe; 54. Water supply ring pipe; 61. Slurry pump; 62. Second hose; 63. Discharge pipe; 64. Discharge ring pipe; 71. Support plate; 72. Support bolt; 73. Support block; 74. Universal wheel. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figures 1-9 As shown, the present invention is a constant-pressure water-making vacuum degassing unit for a closed water system, comprising a mounting plate 1, a water inlet pipe 2 being fixedly connected to the top of the mounting plate 1, a water supply pump 3 being fixedly connected to the outer surface of the water inlet pipe 2 via a pipe, an output end of the water supply pump 3 being fixedly connected to an outlet main pipe 4 via a pipe, an air pressure tank 5 being fixedly connected to the outer surface of the outlet main pipe 4 via a pipe, a pressure transmitter and a pressure gauge being provided on the outlet main pipe 4, a first pipe 6 being fixedly connected to the outer surface of the outlet main pipe 4, one end of the first pipe 6 being fixedly connected to a vacuum degassing tank 7 fixedly connected to the mounting plate 1, a second pipe 8 being fixedly connected to the outer surface of the vacuum degassing tank 7 being fixedly connected to the water inlet pipe 2, and electromagnetic valves being provided on both the first pipe 6 and the second pipe 8;

[0034] An airbag 9 is fixedly connected to the air pressure tank 5 , and a scale cleaning mechanism is provided in the air pressure tank 5 , which is used to clean the outer surface of the air pressure tank 5 and the outer surface of the airbag 9 .

[0035] Water is supplied by the water supply pump 3, which supplies water to the outlet main pipe 4. At this time, the electromagnetic valve on the water inlet pipe 2 is closed, and the electromagnetic valves on the first pipe 6 and the second pipe 8 are closed. At this time, the air pressure tank 5 begins to store water. As the water in the tank continues to increase, the pressure in the air pressure tank 5 increases, and some excess water will be squeezed into the air bag 9. The air bag 9 is inflated. After a period of time, the pointer indicating that the pressure reaches a fixed value can be observed on the pressure gauges on the outlet main pipe 4 and the air pressure tank 5. The pressure transmitter transmits this electrical signal to the control device. At this time, the water supply pump 3 stops working, and the air pressure tank 5 starts to maintain pressure. At this time, the electromagnetic valve on the first pipe 6 opens, and water begins to enter the vacuum degassing tank 7 under pressure. When the water level reaches the high liquid level, the electrode level gauge transmits this signal to the control device. At this time, the vacuum degassing tank 7 Start to exhaust, and at the same time, the electromagnetic valves on the first pipe 6 and the water inlet pipe 2 are closed, and the electromagnetic valve on the second pipe 8 is opened, and degassing begins. After exhausting for a period of time, when the water level in the vacuum degassing tank 7 drops to the low liquid level, the exhaust is stopped, and then the electromagnetic valves on the first pipe 6 and the second pipe 8 are closed, the electromagnetic valve on the water inlet pipe 2 is opened, and the water supply pipe 53 continues to supply water to achieve stable pressure water supply for the equipment. When the pipeline set pressure value is lower than the pressure holding set value, the water supply pump 3 is turned on and water is supplied again. In this way, the stable pressure water supply is repeated over and over again. At the same time, after long-term use, when there is scale on the inner surface of the air pressure tank 5, the scale cleaning mechanism automatically cleans the scale on the inner surface of the air pressure tank 5 and the outer surface of the air bag 9 to prevent the scale from affecting the use of the air pressure tank 5 and the air bag 9.

[0036] Example 2

[0037] Based on Example 1, please refer to Figure 2-Figure 9As shown, the scale cleaning mechanism includes a mounting ring 11 rotatably connected to the air pressure tank 5, two slide rods 12 are fixedly connected to the bottom of the mounting ring 11, and a transmission plate 13 is slidably connected to the outer surface of the slide rod 12. One side of the transmission plate 13 is fixedly connected to a first cleaning ring frame 14 slidably connected to the air pressure tank 5, and one side of the first cleaning ring frame 14 is fixedly connected to a sealing rubber ring 15. The other side of the transmission plate 13 is fixedly connected to a second cleaning ring frame 16 slidably connected to the airbag 9. A plurality of flushing pipes 17 are fixedly connected to the first cleaning ring frame 14 and the second cleaning ring frame 16. One end of the flushing pipe 17 is fixedly connected to a flushing Wash the nozzle 18, one end of the flushing pipe 17 is fixedly connected to a water supply mechanism connected to the air pressure tank 5, the first cleaning circle frame 14 and the second cleaning circle frame 16 are fixedly connected to a drain pipe 19, one end of the drain pipe 19 is fixedly connected to a drainage mechanism connected to the air pressure tank 5, the inner surface of the mounting ring 11 is transmission-connected to a first transmission mechanism connected to the air pressure tank 5, the outer surface of the air pressure tank 5 is slidingly connected to a second transmission mechanism connected to the mounting plate 1, the second transmission mechanism is used to drive the first cleaning circle frame 14 to move up and down, and an inclined groove 191 is provided in the first cleaning circle frame 14 and the second cleaning circle frame 16.

[0038] A plurality of crushing blades 190 are fixedly connected to the inner surfaces of the first cleaning frame 14 and the second cleaning frame 16 .

[0039] The first transmission mechanism includes a transmission shaft 21 rotatably connected to the air pressure tank 5, a first gear 22 is fixedly sleeved on the outer surface of the transmission shaft 21, the outer surface of the first gear 22 is meshedly connected to a transmission gear ring 23 fixedly connected to the mounting ring 11, an electric telescopic rod 24 is fixedly connected to the top of the air pressure tank 5, one end of the electric telescopic rod 24 is fixedly connected to a transmission rack 25 slidably connected to the air pressure tank 5, and one side of the transmission rack 25 is meshedly connected to a second gear 26 fixedly sleeved on the transmission shaft 21.

[0040] The electric telescopic rod 24 drives the transmission rack 25 to move, the transmission rack 25 drives the second gear 26 to rotate, the second gear 26 drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the transmission ring gear 23 to rotate forward and backward through the first gear 22, and the transmission ring gear 23 drives the mounting ring 11 to rotate forward and backward.

[0041] The second transmission mechanism includes two threaded rods 31 rotatably connected to the mounting plate 1, the outer surface of the threaded rod 31 is threadedly fitted with a transmission ring 32 slidably connected to the air pressure tank 5, the top of the transmission ring 32 is fixedly connected to a plurality of permanent magnet blocks 33, the bottom of the first cleaning ring frame 14 is fixedly connected to a plurality of iron plates 34, and the outer surface of the threaded rod 31 is transmission-connected to the driving mechanism.

[0042] The driving mechanism includes a driving motor 41 fixedly connected to the mounting plate 1. The driving motor 41 is controlled by a PLC programming program, and can control the driving motor 41 to rotate forward and reverse and rotate at an angle. The output end of the driving motor 41 is fixedly connected to a driving shaft 42 through a coupling. The outer surface of the driving shaft 42 is fixedly sleeved with a first driving gear 43, and the outer surface of the first driving gear 43 is meshedly connected with a second driving gear 44 fixedly sleeved with the threaded rod 31.

[0043] The driving motor 41 drives the driving shaft 42 to rotate forward and backward, and the driving shaft 42 drives the threaded rod 31 to rotate forward and backward through the first driving gear 43 and the second driving gear 44. The threaded rod 31 drives the transmission ring 32 to move up and down, and the transmission ring 32 drives the permanent magnet block 33 to move back and forth up and down. Under the action of magnetic force, the permanent magnet block 33 drives the iron plate 34 and the first cleaning ring frame 14 to move up and down.

[0044] The water supply mechanism includes a water pump 51 fixedly connected to the air pressure tank 5, the output end of the water pump 51 is fixedly connected to a first hose 52 through a pipeline, one end of the first hose 52 is fixedly connected to a water supply pipe 53, and both ends of the water supply pipe 53 are fixedly connected to a water supply ring pipe 54 fixedly connected to the flushing pipe 17.

[0045] By connecting the input end of the water pump 51 to the cleaning water pool, the water pump 51 then transports the cleaning water to the first hose 52 through the pipeline, and then the first hose 52 transports the water to the water supply pipe 53, and then the water supply pipe 53 transports the water to each flushing pipe 17 through the water supply ring pipe 54, and then the flushing pipe 17 sprays out the cleaning water through the flushing nozzle 18.

[0046] The drainage mechanism includes a slurry pump 61 fixedly connected to the air pressure tank 5. The input end of the slurry pump 61 is fixedly connected to a second hose 62 through a pipeline. One end of the second hose 62 is fixedly connected to a discharge pipe 63. Both ends of the discharge pipe 63 are fixedly connected to a discharge ring pipe 64 fixedly connected to the drainage pipe 19.

[0047] The cleaned water is discharged into the discharge ring pipe 64 in time through the drain pipe 19. At the same time, the slurry pump 61 cooperates with the work of the slurry pump 61, which sucks out the cleaned scale through the second hose 62 and the discharge ring pipe 64, thereby realizing timely discharge of the cleaned scale.

[0048] The first transmission mechanism drives the mounting ring 11 to rotate back and forth within a certain angle. At this time, the water supply mechanism supplies water to the flushing pipe 17 on the first cleaning ring frame 14 and the second cleaning ring frame 16. At this time, the flushing pipe 17 sprays water through the flushing nozzle 18 to flush the inner wall of the air pressure tank 5. At this time, the scale on the inner surface of the air pressure tank 5 and the scale on the outer surface of the air bag 9 are flushed down by the water pressure flushing. At the same time, the mounting ring 11 drives the first cleaning ring frame 14 and the second cleaning ring frame 16 to rotate back and forth within a certain range through the sliding rod 12, so that the flushing nozzle 18 comprehensively flushes the scale on the inner wall of the air pressure tank 5 and the surface of the air bag 9. At the same time, the cleaned scale enters the first cleaning ring frame 14 and the second cleaning ring frame 16. At the same time, the first cleaning ring frame 14 and the second cleaning ring frame 16 drive the crushing knife 190 to rotate, and the crushing knife 190 crushes the larger scale that enters, which is convenient for scale The cleaning of the air bag 5 and the cleaning water is completed, and the cleaning of the air bag 5 and the cleaning water is completed, so that the cleaning water and the cleaning water are discharged in time, and the cleaning water and the cleaning water are prevented from entering the air bag 5 and causing pollution to the water in the air bag 5. There is no need to shut down the unit, and the unit is cleaned in the air bag 5 during operation, which further improves the stability of the water supply of the unit.

[0049] The outer surface of the mounting plate 1 is fixedly connected to a support plate 71 , a support bolt 72 is threadedly connected to the support plate 71 , the bottom end of the support bolt 72 is fixedly connected to a support block 73 , and a universal wheel 74 is fixedly connected to the bottom of the mounting plate 1 .

[0050] The universal wheel 74 facilitates the movement of the support plate 71 and the unit, making it easier for users to use them. At the same time, by rotating the support bolt 72, the support bolt 72 drives the support block 73 to move, thereby achieving height adjustment of the mounting plate 1 and the unit, facilitating the installation of the unit and improving the applicability of the unit installation.

[0051] Working principle of the present invention:

[0052] The first transmission mechanism drives the mounting ring 11 to rotate back and forth within a certain angle. At this time, the water supply mechanism supplies water to the flushing pipe 17 on the first cleaning ring frame 14 and the second cleaning ring frame 16. At this time, the flushing pipe 17 sprays water through the flushing nozzle 18 to flush the inner wall of the air pressure tank 5. At this time, the scale on the inner surface of the air pressure tank 5 and the scale on the outer surface of the air bag 9 are flushed down by the water pressure flushing. At the same time, the mounting ring 11 drives the first cleaning ring frame 14 and the second cleaning ring frame 16 to rotate back and forth within a certain range through the sliding rod 12, so that the flushing nozzle 18 comprehensively flushes the scale on the inner wall of the air pressure tank 5 and the surface of the air bag 9. At the same time, the cleaned scale enters the first cleaning ring frame 14 and the second cleaning ring frame 16. At the same time, the first cleaning ring frame 14 and the second cleaning ring frame 16 drive the crushing knife 190 to rotate, and the crushing knife 190 crushes the larger scale that enters, which is convenient for scale The cleaning of the air bag 5 and the cleaning water is completed, and the cleaning of the air bag 5 and the cleaning water is completed, so that the cleaning water and the cleaning water are discharged in time, and the cleaning water and the cleaning water are prevented from entering the air bag 5 and causing pollution to the water in the air bag 5. There is no need to shut down the unit, and the unit is cleaned in the air bag 5 during operation, which further improves the stability of the water supply of the unit.

[0053] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A constant pressure water supply vacuum degassing unit for a closed water system, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to a water inlet pipe (2), the outer surface of the water inlet pipe (2) is fixedly connected to a water supply pump (3) via a pipe, the output end of the water supply pump (3) is fixedly connected to an outlet main pipe (4) via a pipe, the outer surface of the outlet main pipe (4) is fixedly connected to an air pressure tank (5) via a pipe, the outlet main pipe (4) is provided with a pressure transmitter and a pressure gauge, the outer surface of the outlet main pipe (4) is fixedly connected to a first pipe (6), one end of the first pipe (6) is fixedly connected to a vacuum degassing tank (7) fixedly connected to the mounting plate (1), the outer surface of the vacuum degassing tank (7) is fixedly connected to a second pipe (8) fixedly connected to the water inlet pipe (2), and both the first pipe (6) and the second pipe (8) are provided with electromagnetic valves; An air bag (9) is fixedly connected to the air pressure tank (5), and a scale cleaning mechanism is provided in the air pressure tank (5), and the scale cleaning mechanism is used to clean the outer surface of the air pressure tank (5) and the outer surface of the air bag (9); The scale cleaning mechanism comprises a mounting ring (11) rotatably connected to the air pressure tank (5), two slide bars (12) are fixedly connected to the bottom of the mounting ring (11), a transmission plate (13) is slidably connected to the outer surface of the slide bar (12), one side of the transmission plate (13) is fixedly connected to a first cleaning ring frame (14) slidably connected to the air pressure tank (5), one side of the first cleaning ring frame (14) is fixedly connected to a sealing rubber ring (15), the other side of the transmission plate (13) is fixedly connected to a second cleaning ring frame (16) slidably connected to the air bag (9), a plurality of flushing pipes (17) are fixedly connected to the first cleaning ring frame (14) and the second cleaning ring frame (16), one end of each flushing pipe (17) is fixedly connected to a flushing ring. The washing nozzle (18) is fixedly connected to the other end of the flushing pipe (17) with a water supply mechanism connected to the air pressure tank (5), the first cleaning ring frame (14) and the second cleaning ring frame (16) are fixedly connected with a drain pipe (19), one end of the drain pipe (19) is fixedly connected with a drain mechanism connected to the air pressure tank (5), the inner surface of the mounting ring (11) is transmission-connected to a first transmission mechanism connected to the air pressure tank (5), the outer surface of the air pressure tank (5) is slidingly connected to a second transmission mechanism connected to the mounting plate (1), the second transmission mechanism is used to drive the first cleaning ring frame (14) to move up and down, and the first cleaning ring frame (14) and the second cleaning ring frame (16) are both provided with an inclined groove (191).

2. A constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: A plurality of crushing knives (190) are fixedly connected to the inner surfaces of the first cleaning ring frame (14) and the second cleaning ring frame (16).

3. The constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: The first transmission mechanism comprises a transmission shaft (21) rotatably connected to the air pressure tank (5), a first gear (22) fixedly sleeved on the outer surface of the transmission shaft (21), an outer surface of the first gear (22) meshingly connected to a transmission ring gear (23) fixedly connected to the mounting ring (11), an electric telescopic rod (24) fixedly connected to the top of the air pressure tank (5), one end of the electric telescopic rod (24) fixedly connected to a transmission rack (25) slidably connected to the air pressure tank (5), and one side of the transmission rack (25) meshingly connected to a second gear (26) fixedly sleeved on the transmission shaft (21).

4. The constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: The second transmission mechanism comprises two threaded rods (31) rotatably connected to the mounting plate (1); the outer surfaces of the threaded rods (31) are threadedly engaged with a transmission ring (32) slidably connected to the air pressure tank (5); the top of the transmission ring (32) is fixedly connected to a plurality of permanent magnet blocks (33); the bottom of the first cleaning ring frame (14) is fixedly connected to a plurality of iron plates (34); and the outer surface of the threaded rod (31) is transmission-connected to a driving mechanism.

5. A constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 4, characterized in that: The drive mechanism comprises a drive motor (41) fixedly connected to the mounting plate (1); an output end of the drive motor (41) is fixedly connected to a drive shaft (42) via a coupling; a first drive gear (43) is fixedly sleeved on an outer surface of the drive shaft (42); and a second drive gear (44) is meshedly connected to an outer surface of the first drive gear (43) and fixedly sleeved on the threaded rod (31).

6. The constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: The water supply mechanism comprises a water pump (51) fixedly connected to the air pressure tank (5); the output end of the water pump (51) is fixedly connected to a first hose (52) via a pipeline; one end of the first hose (52) is fixedly connected to a water supply pipe (53); and both ends of the water supply pipe (53) are fixedly connected to a water supply ring pipe (54) fixedly connected to the flushing pipe (17).

7. The constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: The drainage mechanism comprises a slurry pump (61) fixedly connected to the air pressure tank (5); an input end of the slurry pump (61) is fixedly connected to a second hose (62) via a pipeline; one end of the second hose (62) is fixedly connected to a discharge pipe (63); and both ends of the discharge pipe (63) are fixedly connected to a discharge ring pipe (64) fixedly connected to the drainage pipe (19).

8. The constant pressure water replenishment vacuum degassing unit for a closed water system according to claim 1, characterized in that: The outer surface of the mounting plate (1) is fixedly connected to a support plate (71), a support bolt (72) is threadedly connected to the support plate (71), the bottom end of the support bolt (72) is fixedly connected to a support block (73), and the bottom of the mounting plate (1) is fixedly connected to a universal wheel (74).

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