A water supply device for main pipe of chiller

Abstract

The present invention relates to the field of chillers, and specifically to a water replenishing device for a main pipe of a chiller, comprising a water storage tank, wherein a pipe joint communicating with the water storage tank is installed at an upper position of a side of the water storage tank away from a connecting pipe, a left branch pipe is installed at an end of the pipe joint away from the water storage tank, a hose that can be squeezed and deformed is installed at an end of the left branch pipe away from the pipe joint, a right branch pipe is installed at an end of the hose away from the left branch pipe, a valve for connecting to a tap water pipe is installed at an end of the right branch pipe away from the hose, and an extrusion piece for squeezing the hose to put the hose in a closed state is installed between the left branch pipe and the right branch pipe. The present invention has the following beneficial effects: it realizes cutting off a replenishing channel for tap water by utilizing the buoyancy generated by overflowing water on an inflated airbag, thereby avoiding water overflowing from the water storage tank, reducing the waste of water resources, and avoiding water splashing on other components in the chiller to cause damage to them.

Description

Technical Field

[0001] The invention discloses a water replenishing device for a main pipe of a water chiller, and belongs to the field of water chillers. Background Art

[0002] Replenishing tap water to the water tank in the chiller is one of the common ways to replenish water for the chiller, that is, a valve connected to the tap water pipe is installed on the water tank of the chiller, and after opening the valve, the pressurized water in the tap water pipe can flow into the water tank to achieve water replenishment. In order to keep the pressure in the water tank constant, it is necessary to install an exhaust pipe or open an exhaust hole on the water tank, and then after the tap water enters the water tank, the air in the water tank is discharged under the pressure of the tap water. Since the amount of water replenished in the water tank is uncertain, there is a situation where the water in the water tank overflows due to failure to close the valve in time, which not only causes a waste of water resources, but also the overflowed water is likely to damage other components in the chiller. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a water replenishment device for a main pipe of a chiller to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a water replenishment device for a main pipe of a chiller, comprising a water tank, a connecting pipe for connecting to a circulating pump is installed at the lower position of one side of the water tank, a tank cover is installed at the upper end of the water tank, a pipe joint communicating with the water tank is installed at the upper position of the side of the water tank away from the connecting pipe, a left branch is installed at the end of the pipe joint away from the water tank, a hose that can be squeezed and deformed is installed at the end of the left branch away from the pipe joint, a right branch is installed at the end of the hose away from the left branch, a valve for connecting to a tap water pipe is installed at the end of the right branch away from the hose, and an extrusion piece for squeezing the hose to put the hose in a closed state is installed between the left branch and the right branch.

[0005] Specifically, the extrusion member includes a top cover, a top cover is arranged between the left branch pipe and the right branch pipe, an overflow pipe is installed on the upper surface of the top cover, one end of the overflow pipe away from the top cover passes through the box cover and is connected and fixed to the box cover, the lower end of the top cover is open, and the lower parts of the two parallel side surfaces of the top cover are provided with semicircular upper arc openings, the left branch pipe and the right branch pipe are respectively arranged in the two upper arc openings, a bottom cover is arranged on the lower side of the top cover, and the bottom cover is connected to the top cover through two sets of connecting pieces, and the two sides of the bottom cover are connected to each other. A semicircular lower arc-shaped opening matching with the upper arc-shaped opening is provided at the upper position of the parallel side surfaces, the left branch pipe and the right branch pipe are respectively arranged in the two lower arc-shaped openings, the hose is arranged in the space formed by the top cover and the bottom cover, an upper pressure plate for squeezing the hose is installed at the top of the top cover, an exhaust pipe is installed at one end of the upper surface of the top cover away from the overflow pipe, a lower pressure plate for squeezing the hose matching with the upper pressure plate is slidably installed in the bottom cover, and a buoyancy member for driving the lower pressure plate to move upward is installed at the lower end of the bottom cover.

[0006] Specifically, the buoyancy member includes a limit plate, the lower end of the lower pressure plate is connected and fixed to the limit plate, the limit plate is slidably installed in the bottom cover, the upper surface of the limit plate is provided with two through holes symmetrically arranged about the lower pressure plate, the middle position of the lower surface of the limit plate is connected and fixed with a push rod, the lower surface of the bottom cover is installed with a vertical pipe, the lower end of the vertical pipe is connected and fixed with a box cover, the lower surface of the box cover is installed with a temporary storage box, the lower end of the push rod passes through the vertical pipe and is fixed in a rubber sleeve, one end of the rubber sleeve is connected and fixed with an inflation airbag, the inflation airbag is arranged in the space formed by the box cover and the temporary storage box, the inner diameter of the vertical pipe is larger than the outer diameter of the push rod, the outer surface of the inflation airbag is installed with an air injection pipe, and the other end of the air injection pipe is installed with an inflation nozzle for connecting to the air outlet end of the inflation device.

[0007] Specifically, the connecting piece includes a lower connecting ear, and the lower connecting ears are installed at the upper positions of the two side surfaces of the bottom cover adjacent to the lower semicircular opening. The upper side of the lower connecting ear is provided with an upper connecting ear that cooperates with the lower connecting ear. The upper connecting ear is connected and fixed to the top cover, and the upper connecting ear is connected and fixed to the lower connecting ear by means of multiple sets of screws and nuts.

[0008] Specifically, a positioning sleeve is installed in the middle position of the upper surface of the upper connecting ear, and the cross-section of the positioning sleeve is rectangular. A positioning rod is inserted in the positioning sleeve, and the cross-section of the positioning rod is rectangular. The upper end of the positioning rod is connected and fixed with a support plate for limiting the position of the screw head, and the support plate is arranged parallel to the upper connecting ear. One end of the screw passes through the support plate, the upper connecting ear and the lower connecting ear in sequence and is threaded with a nut.

[0009] Specifically, a drain pipe is installed at the lower part of one side of the temporary storage box away from the water tank, an outer surface of one end of the drain pipe away from the temporary storage box is processed with external threads, and one end of the drain pipe processed with external threads is threadedly connected with a sealing cover.

[0010] Specifically, a right protrusion is connected and fixed to the side of the temporary storage box facing away from the drain pipe, a U-shaped plate is installed by bolts on the side of the right protrusion facing the water tank, a left protrusion is provided on the side of the U-shaped plate facing away from the right protrusion, the left protrusion is connected and fixed to the water tank, and the U-shaped plate is connected and fixed to the left protrusion by bolts.

[0011] Specifically, two column heads are symmetrically fixed on the lower surface of the limiting plate, the column heads are arranged along the length direction of the top rod, the two column heads are symmetrically arranged about the top rod, and the lower ends of the column heads are in contact with the bottom of the bottom cover.

[0012] Specifically, the outer sides of the two upper arc-shaped openings are each provided with an upper arc-shaped plate concentric with the upper arc-shaped opening, and the upper arc-shaped plate is connected and fixed to the top cover; the outer sides of the two lower arc-shaped openings are each provided with a lower arc-shaped plate concentrically arranged with the lower arc-shaped opening, and the lower arc-shaped plate is connected and fixed to the bottom cover; the end of the hose extends into the cylindrical structure formed by the upper arc-shaped plate and the lower arc-shaped plate.

[0013] Specifically, a rectangular frame is connected and fixed at the upper position inside the water tank, a sealing strip is provided on the upper side of the rectangular frame, the sealing strip is arranged between the box cover and the rectangular frame, and the box cover is connected and fixed to the rectangular frame by a plurality of screws.

[0014] Beneficial effects of the present invention:

[0015] 1. Place the hose in the space formed by the top cover and the bottom cover, and then insert the positioning rod into the positioning sleeve to connect the support plate with the upper connecting ear. At this time, a certain distance is maintained between the support plate and the upper connecting ear. One end of the screw passes through the support plate, the upper connecting ear and the lower connecting ear in turn, and then the nut is screwed on to complete the assembly of the top cover and the bottom cover, so that the hose can be installed in the space formed by the top cover and the bottom cover. When the screw and the nut are difficult to turn when the hose needs to be replaced, the screw can be cut off by using the gap between the support plate and the upper connecting ear.

[0016] 2. Place the end of the hose in the cylindrical structure formed by the upper arc plate and the lower arc plate, so that the upper arc plate and the lower arc plate can be used to press the end of the hose, thereby improving the stability of the connection between the hose and the left branch pipe and the right branch pipe.

[0017] 3. After opening the valve, the water from the tap water pipe flows into the water tank through the channel formed by the right branch pipe, the hose and the left branch pipe, so as to replenish the water in the main pipe of the chiller. When the water in the space formed by the water tank and the box cover continues to increase due to the failure to close the valve in time, part of the water in the space formed by the water tank and the box cover flows into the space formed by the top cover and the bottom cover through the overflow pipe, and then the water flows into the space formed by the box cover and the temporary storage box through the vertical pipe. At this time, the expansion airbag moves upward under the action of buoyancy, and the expansion airbag moves upward through the push rod and the limit The plate drives the lower pressure plate to move upward, and the upper pressure plate cooperates with the lower pressure plate to squeeze the hose so that the hose is flattened and in a closed state, so that tap water no longer enters the water tank when the valve is not closed, and the buoyancy generated by the overflowing water on the inflated airbag is used to cut off the replenishment channel of the tap water, thereby avoiding water overflow from the water tank, reducing the waste of water resources, and avoiding water splashing on other components in the chiller and causing damage to them. After the water in the temporary storage box is discharged, it is convenient to keep the hose in a non-squeezed state.

[0018] 4. Connect the inflation nozzle to the air outlet end of the inflation device, and then use the inflation device to inject space into the expansion airbag to increase the volume of the expansion airbag, thereby increasing the buoyancy of the expansion airbag when the water level flowing into the temporary storage box is low, so that the squeezing force of the lower pressure plate on the hose can be greater than the water pressure of the tap water flowing through the hose as needed, so that the lower pressure plate and the upper pressure plate can smoothly make the hose flat and in a closed state.

[0019] 5. Use a U-shaped plate to connect the temporary storage box and the water storage tank to improve the stability of the structure. Install right and left protrusions between the U-shaped plate and the temporary storage box and the water storage tank respectively, so as to partially increase the thickness of the temporary storage box and the water storage tank where the screws are installed, without increasing the wall thickness of the temporary storage box and the water storage tank as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 It is a structural schematic diagram of a water replenishment device for a main pipe of a chiller according to the present invention;

[0022] Figure 2 A three-dimensional view of a water replenishment device for a main pipe of a chiller according to the present invention from another perspective;

[0023] Figure 3 It is a schematic diagram of assembling an expansion air bag, a top rod, a box cover, a top cover and a bottom cover in a water replenishment device for a main pipe of a chiller according to the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 It is a schematic diagram of the assembly of a left branch pipe, a right branch pipe and a hose in a water replenishment device for a main pipe of a chiller according to the present invention;

[0026] Figure 6 It is a schematic diagram of the assembly of an upper pressure plate and a top cover in a water replenishment device for a main pipe of a chiller according to the present invention;

[0027] Figure 7 It is a schematic diagram of the assembly of a lower pressure plate, a limit plate, a push rod and an expansion air bag in a water replenishment device for a main pipe of a chiller according to the present invention;

[0028] Figure 8 It is a schematic diagram of assembling a vertical pipe and a bottom cover in a water replenishment device for a main pipe of a chiller according to the present invention;

[0029] Fig. 9 It is a schematic diagram of the assembly of the connecting pipe, the pipe joint and the water storage tank in the water replenishment device of the main pipe of the chiller according to the present invention;

[0030] Fig.10 It is a schematic diagram of assembling a positioning plate and a supporting plate in a water replenishing device for a main pipe of a chiller according to the present invention;

[0031] In the figure: 1, water storage tank, 2, tank cover, 3, overflow pipe, 4, exhaust pipe, 5, top cover, 6, right branch pipe, 7, valve, 8, box cover, 9, temporary storage box, 10, sealing cover, 11, drain pipe, 12, bottom cover, 13, U-shaped plate, 14, left protrusion, 15, left branch pipe, 16, pipe joint, 17, connecting pipe, 18, right protrusion, 19, top rod, 20, inflation nozzle, 21, air injection pipe, 2 2. Inflatable airbag, 23. Rubber sleeve, 24. Vertical pipe, 25. Upper arc plate, 26. Lower arc plate, 27. Nut, 28. Lower connecting ear, 29. Upper connecting ear, 30. Positioning sleeve, 31. Positioning rod, 32. Support plate, 33. Screw, 34. Hose, 35. Lower pressure plate, 36. Upper pressure plate, 37. Limit plate, 38. Through port, 39. Column head, 40. Sealing strip, 41. Rectangular frame. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] See also Figure 1 , Figure 2 and Fig. 9The present invention provides a technical solution: a water replenishment device for a main pipe of a chiller, comprising a water storage tank 1, a connecting pipe 17 for connecting a circulating pump is installed at the lower position of one side of the water storage tank 1, a tank cover 2 is installed at the upper end of the water storage tank 1, a rectangular frame 41 is connected and fixed at the upper position inside the water storage tank 1, a sealing strip 40 is provided on the upper side of the rectangular frame 41, and the sealing strip 40 is arranged between the tank cover 2 and the rectangular frame 41. The tank cover 2 is connected and fixed to the rectangular frame 41 by a plurality of screws, so that the sealing strip 40 is located between the rectangular frame 41 and the tank cover 2, thereby improving the sealing between the water storage tank 1 and the tank cover 2, and the water storage tank 1 is away from the connecting pipe 17. A pipe joint 16 connected to the water tank 1 is installed at the upper position of one side of the connecting pipe 17, a left branch pipe 15 is installed at the end of the pipe joint 16 away from the water tank 1, a hose 34 that can be squeezed and deformed is installed at the end of the left branch pipe 15 away from the pipe joint 16, a right branch pipe 6 is installed at the end of the hose 34 away from the left branch pipe 15, a valve 7 for connecting to a tap water pipe is installed at the end of the right branch pipe 6 away from the hose 34. After opening the valve 7, the water in the tap water pipe flows into the water tank 1 through the channel formed by the right branch pipe 6, the hose 34 and the left branch pipe 15, so as to replenish the water in the main pipe of the chiller.

[0034] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 A top cover 5 is provided between the left branch pipe 15 and the right branch pipe 6, an overflow pipe 3 is installed on the upper surface of the top cover 5, an end of the overflow pipe 3 away from the top cover 5 passes through the box cover 2 and is connected and fixed to the box cover 2, the lower end of the top cover 5 is open, and the lower positions of the two parallel side surfaces of the top cover 5 are provided with semicircular upper arc-shaped openings, the left branch pipe 15 and the right branch pipe 6 are respectively arranged in the two upper arc-shaped openings, a bottom cover 12 is provided on the lower side of the top cover 5, and the upper positions of the two parallel side surfaces of the bottom cover 12 are provided with semicircular lower arc-shaped openings matching the upper arc-shaped openings, the left branch pipe 15 and the right branch pipe 6 are respectively arranged in the two lower arc-shaped openings, and a hose 34 is provided between the top cover 5 and the bottom cover 12 In the formed space, the outer sides of the two upper arc-shaped openings are provided with upper arc-shaped plates 25 which are concentric with the upper arc-shaped openings, and the upper arc-shaped plates 25 are connected and fixed to the top cover 5, and the outer sides of the two lower arc-shaped openings are provided with lower arc-shaped plates 26 which are arranged concentrically with the lower arc-shaped openings, and the lower arc-shaped plates 26 are connected and fixed to the bottom cover 12. The end of the hose 34 extends into the cylindrical structure formed by the upper arc-shaped plates 25 and the lower arc-shaped plates 26, so that the end of the hose 34 is placed in the cylindrical structure formed by the upper arc-shaped plates 25 and the lower arc-shaped plates 26, so as to realize the pressure holding of the end of the hose 34 by the upper arc-shaped plates 25 and the lower arc-shaped plates 26, thereby improving the stability of the connection between the hose 34 and the left branch pipe 15 and the right branch pipe 6.

[0035] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig.10 , lower connecting ears 28 are installed at the upper positions of the two side surfaces adjacent to the lower semicircular opening of the bottom cover 12, and upper connecting ears 29 are provided on the upper sides of the lower connecting ears 28 to match the lower connecting ears 28, and the upper connecting ears 29 are connected and fixed to the top cover 5, and the upper connecting ears 29 are connected and fixed to the lower connecting ears 28 by means of multiple sets of screws 33 and nuts 27, wherein a positioning sleeve 30 is installed at the middle position of the upper surface of the upper connecting ear 29, and the cross section of the positioning sleeve 30 is rectangular, and a positioning rod 31 is inserted in the positioning sleeve 30, and the cross section of the positioning rod 31 is rectangular, and the upper end of the positioning rod 31 is connected and fixed with a support plate 32 for limiting the position of the head of the screw 33, and the support plate 32 is arranged parallel to the upper connecting ear 29, and one end of the screw 33 passes through the support plate 32, The upper connecting ear 29 and the lower connecting ear 28 are threadedly connected with the nut 27, and the hose 34 is placed in the space formed by the top cover 5 and the bottom cover 12, and then the positioning rod 31 is inserted in the positioning sleeve 30 to realize the connection between the support plate 32 and the upper connecting ear 29. At this time, a certain distance is maintained between the support plate 32 and the upper connecting ear 29, and one end of the screw 33 is passed through the support plate 32, the upper connecting ear 29 and the lower connecting ear 28 in sequence, and then the nut 27 is screwed on to complete the assembly of the top cover 5 and the bottom cover 12, so that the hose 34 can be easily installed in the space formed by the top cover 5 and the bottom cover 12. When the screw 33 and the nut 27 are difficult to twist when the hose 34 needs to be replaced, the screw 33 can be cut off by using the gap between the support plate 32 and the upper connecting ear 29.

[0036] See also Figure 1-Figure 8 An upper pressure plate 36 for squeezing the hose 34 is installed at the top of the top cover 5, and an exhaust pipe 4 is installed at one end of the upper surface of the top cover 5 away from the overflow pipe 3. A lower pressure plate 35 for squeezing the hose 34 is slidably installed in the bottom cover 12, and the lower end of the lower pressure plate 35 is connected and fixed with a limit plate 37, and the limit plate 37 is slidably installed in the bottom cover 12. The upper surface of the limit plate 37 is provided with two through holes 38 arranged symmetrically about the lower pressure plate 35, and the middle position of the lower surface of the limit plate 37 A top rod 19 is connected and fixed, a vertical pipe 24 is installed on the lower surface of the bottom cover 12, and a box cover 8 is connected and fixed to the lower end of the vertical pipe 24. Two column heads 39 are symmetrically fixed to the lower surface of the limiting plate 37. The column heads 39 are arranged along the length direction of the top rod 19. The two column heads 39 are symmetrically arranged about the top rod 19. The lower ends of the column heads 39 are in contact with the bottom of the bottom cover 12. Under the restriction of the column heads 39, a certain distance is maintained between the lower limiting plate 37 and the bottom of the bottom cover 12, thereby facilitating the flow of water through the vertical pipe 24.

[0037] See also Figure 1-Figure 9A temporary storage box 9 is installed on the lower surface of the box cover 8. The lower end of the push rod 19 passes through the vertical pipe 24 and is fixed in the rubber sleeve 23. An expansion airbag 22 is connected and fixed at one end of the rubber sleeve 23. The expansion airbag 22 is arranged in the space formed by the box cover 8 and the temporary storage box 9. The inner diameter of the vertical pipe 24 is larger than the outer diameter of the push rod 19. An air injection pipe 21 is installed on the outer surface of the expansion airbag 22. An air injection nozzle 20 for connecting to the air outlet end of the inflation device is installed at the other end of the air injection pipe 21. A drain pipe 11 is installed at the lower position of the side of the temporary storage box 9 away from the water tank 1. The outer surface of the end of the drain pipe 11 away from the temporary storage box 9 is processed with an outer Threaded, one end of the drain pipe 11 with an external thread is threadedly connected to a sealing cover 10, so that the inflation nozzle 20 is connected to the air outlet end of the inflation device, and then the inflation device is used to inject space into the expansion airbag 22 to increase the volume of the expansion airbag 22, and then when the water level flowing into the temporary storage box 9 is low, the buoyancy of the expansion airbag 22 is increased, so that it is convenient to make the squeezing force of the lower pressure plate 35 on the hose 34 greater than the water pressure of the tap water flowing through the hose 34 as needed, so that the lower pressure plate 35 and the upper pressure plate 36 can smoothly make the hose 34 flat and in a closed state.

[0038] When the moisture in the space formed by the water tank 1 and the box cover 2 continues to increase due to the failure to close the valve 7 in time, part of the moisture in the space formed by the water tank 1 and the box cover 2 flows into the space formed by the top cover 5 and the bottom cover 12 through the overflow pipe 3, and then the moisture flows into the space formed by the box cover 8 and the temporary storage box 9 through the vertical pipe 24. At this time, the expansion airbag 22 moves upward under the action of buoyancy, and the expansion airbag 22 drives the lower pressure plate 35 to move upward through the push rod 19 and the limit plate 37. The upper pressure plate 36 cooperates with the lower pressure plate 35 to squeeze the hose 34 so that the hose 34 is flattened and in a closed state, so that the tap water no longer enters the water tank 1 when the valve 7 is not closed, and the buoyancy generated by the overflowing water on the expansion airbag 22 is used to cut off the replenishment channel of the tap water, so as to avoid the overflow of water from the water tank 1, reduce the waste of water resources, and avoid the situation where water splashes on other components in the chiller and causes damage to them. After the moisture in the temporary storage box 9 is discharged, it is convenient to put the hose 34 in a non-squeezed state.

[0039] See also Figure 1 and Figure 2A right protrusion 18 is connected and fixed to the side of the temporary storage box 9 facing away from the drain pipe 11, and a U-shaped plate 13 is installed on the side of the right protrusion 18 facing the water tank 1 through bolts. A left protrusion 14 is provided on the side of the U-shaped plate 13 facing away from the right protrusion 18, and the left protrusion 14 is connected and fixed to the water tank 1. The U-shaped plate 13 is connected and fixed to the left protrusion 14 through bolts. The U-shaped plate 13 is used to connect the temporary storage box 9 and the water tank 1 to improve the stability of the structure. The right protrusion 18 and the left protrusion 14 are respectively installed between the U-shaped plate 13 and the temporary storage box 9 and the water tank 1, thereby locally increasing the thickness of the temporary storage box 9 and the water tank 1 where the screws are installed, without increasing the wall thickness of the temporary storage box 9 and the water tank 1 as a whole.

[0040] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water replenishment device for a main pipe of a chiller, comprising a water storage tank (1), characterized in that: A connecting pipe (17) for connecting to a circulation pump is installed at the lower position of one side of the water tank (1); a tank cover (2) is installed at the upper end of the water tank (1); a pipe joint (16) in communication with the water tank (1) is installed at the upper position of one side of the water tank (1) away from the connecting pipe (17); a left branch pipe (15) is installed at the end of the pipe joint (16) away from the water tank (1); a hose (34) that can be squeezed and deformed is installed at the end of the left branch pipe (15) away from the pipe joint (16); a right branch pipe (6) is installed at the end of the hose (34) away from the left branch pipe (15); a valve (7) for connecting to a tap water pipe is installed at the end of the right branch pipe (6) away from the hose (34); and an extrusion piece for squeezing the hose (34) to put the hose (34) in a closed state is installed between the left branch pipe (15) and the right branch pipe (6); The extrusion member comprises a top cover (5), a top cover (5) is arranged between the left branch pipe (15) and the right branch pipe (6), an overflow pipe (3) is installed on the upper surface of the top cover (5), one end of the overflow pipe (3) away from the top cover (5) passes through the box cover (2) and is connected and fixed to the box cover (2), the lower end of the top cover (5) is open, and the lower parts of the two parallel side surfaces of the top cover (5) are both provided with semicircular upper arc-shaped openings, the left branch pipe (15) and the right branch pipe (6) are respectively arranged in the two upper arc-shaped openings, and a bottom cover (12) is arranged on the lower side of the top cover (5), and the bottom cover (12) is connected to the top cover (5) through two sets of connecting pieces, and the two parallel side surfaces of the bottom cover (12) are respectively provided with a semicircular upper arc-shaped opening. A semicircular lower arc-shaped opening matched with the upper arc-shaped opening is provided at the upper position of the side surface, the left branch pipe (15) and the right branch pipe (6) are respectively arranged in the two lower arc-shaped openings, the hose (34) is arranged in the space formed by the top cover (5) and the bottom cover (12), an upper pressure plate (36) for squeezing the hose (34) is installed at the top of the top cover (5), an exhaust pipe (4) is installed at one end of the upper surface of the top cover (5) away from the overflow pipe (3), a lower pressure plate (35) for squeezing the hose (34) matched with the upper pressure plate (36) is slidably installed in the bottom cover (12), and a buoyancy member for driving the lower pressure plate (35) to move upward is installed at the lower end of the bottom cover (12).

2. The water replenishing device for the main pipe of a chiller according to claim 1, characterized in that: The buoyancy member comprises a limit plate (37), the lower end of the lower pressure plate (35) is connected and fixed with the limit plate (37), the limit plate (37) is slidably installed in the bottom cover (12), the upper surface of the limit plate (37) is provided with two through openings (38) symmetrically arranged with respect to the lower pressure plate (35), a top rod (19) is connected and fixed to the middle position of the lower surface of the limit plate (37), a vertical pipe (24) is installed on the lower surface of the bottom cover (12), the lower end of the vertical pipe (24) is connected and fixed with a box cover (8), and the lower surface of the box cover (8) is A temporary storage box (9) is installed on the surface, the lower end of the push rod (19) passes through the vertical pipe (24) and is fixed in the rubber sleeve (23), one end of the rubber sleeve (23) is connected and fixed with an expansion air bag (22), the expansion air bag (22) is arranged in the space formed by the box cover (8) and the temporary storage box (9), the inner diameter of the vertical pipe (24) is larger than the outer diameter of the push rod (19), the outer surface of the expansion air bag (22) is installed with an air injection pipe (21), and the other end of the air injection pipe (21) is installed with an air filling nozzle (20) for connecting to the air outlet end of the inflation device.

3. The water replenishing device for the main pipe of a chiller according to claim 1, characterized in that: The connecting member comprises a lower connecting ear (28), and the lower connecting ears (28) are installed at the upper positions of the two side surfaces of the bottom cover (12) adjacent to the lower semicircular opening, and the upper side of the lower connecting ear (28) is provided with an upper connecting ear (29) matched with the lower connecting ear (28), and the upper connecting ear (29) is connected and fixed to the top cover (5), and the upper connecting ear (29) is connected and fixed to the lower connecting ear (28) by means of a plurality of sets of screws (33) and nuts (27) matched with each other.

4. The water replenishing device for the main pipe of a chiller according to claim 3 is characterized in that: A positioning sleeve (30) is installed at the middle position of the upper surface of the upper connecting ear (29), the cross section of the positioning sleeve (30) is rectangular, a positioning rod (31) is inserted in the positioning sleeve (30), the cross section of the positioning rod (31) is rectangular, the upper end of the positioning rod (31) is connected and fixed with a support plate (32) for limiting the position of the head of the screw (33), the support plate (32) is arranged parallel to the upper connecting ear (29), and one end of the screw (33) passes through the support plate (32), the upper connecting ear (29) and the lower connecting ear (28) in sequence and is threadedly connected with a nut (27).

5. The water replenishing device for the main pipe of a chiller according to claim 2, characterized in that: A drainage pipe (11) is installed at the lower part of a side of the temporary storage box (9) facing away from the water storage tank (1); an outer surface of one end of the drainage pipe (11) away from the temporary storage box (9) is processed with an external thread; and a sealing cover (10) is threadedly connected to the end of the drainage pipe (11) processed with the external thread.

6. The water replenishing device for the main pipe of a chiller according to claim 5, characterized in that: A right protrusion (18) is connected and fixed to a side of the temporary storage box (9) facing away from the drainage pipe (11); a U-shaped plate (13) is installed on a side of the right protrusion (18) facing the water storage tank (1) via bolts; a left protrusion (14) is provided on a side of the U-shaped plate (13) facing away from the right protrusion (18); the left protrusion (14) is connected and fixed to the water storage tank (1); and the U-shaped plate (13) is connected and fixed to the left protrusion (14) via bolts.

7. The water replenishing device for the main pipe of a chiller according to claim 2, characterized in that: Two column heads (39) are symmetrically fixed on the lower surface of the limiting plate (37), and the column heads (39) are arranged along the length direction of the top rod (19). The two column heads (39) are symmetrically arranged about the top rod (19), and the lower ends of the column heads (39) are in contact with the inner bottom of the bottom cover (12).

8. The water replenishing device for the main pipe of a chiller according to claim 2, characterized in that: An upper arc plate (25) concentric with the upper arc plate is disposed on the outer side of the two upper arc ports, and the upper arc plate (25) is connected and fixed to the top cover (5). A lower arc plate (26) concentric with the lower arc plate is disposed on the outer side of the two lower arc ports, and the lower arc plate (26) is connected and fixed to the bottom cover (12). The end of the hose (34) extends into a cylindrical structure formed by the upper arc plate (25) and the lower arc plate (26).

9. The water replenishing device for the main pipe of a chiller according to claim 1, characterized in that: A rectangular frame (41) is connected and fixed to the upper part of the water storage tank (1); a sealing strip (40) is provided on the upper side of the rectangular frame (41); the sealing strip (40) is arranged between the tank cover (2) and the rectangular frame (41); and the tank cover (2) is connected and fixed to the rectangular frame (41) by a plurality of screws.

Images