A partition heating pressure stabilizing device for high-rise buildings

Abstract

The utility model discloses a partition heat supply pressure stabilizing device suitable for high -rise building, including expansion tank, be provided with water pass -through and sealing cover on the expansion tank, the water pass -through is welded in the middle portion of expansion tank bottom, the sealing cover is fixed through screw mounting in the expansion tank top, is provided with inlet valve, barograph and through -hole on the sealing cover, the inlet valve is connected through screw in the right side of sealing cover top, the barograph is connected through screw in the top front -end of sealing cover, the through -hole is set up in the middle portion of sealing cover top, and the through -hole top is fixed with the shaft sleeve through screw mounting, the first sealing groove is seted up in the inside upper and lower of shaft sleeve, is nested with the first sealing rubber ring on the first sealing groove. The utility model can lubricate piston easily, and the stability of expansion tank operation has been effectively improved.

Description

Technical Field

[0001] This utility model relates to a zoned heating and pressure stabilization device suitable for high-rise buildings, belonging to the field of heating and pressure stabilization technology. Background Technology

[0002] Currently used heating pressure-stabilizing expansion tanks all use air bladders to divide the interior into water and air chambers, preventing direct contact between water and air. However, these air bladders can be damaged during use due to factors such as water quality and pressure, requiring complete replacement and significantly increasing future maintenance costs. To address these issues, a new technical solution is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a zoned heating and pressure stabilization device suitable for high-rise buildings, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a zoned heating and pressure stabilizing device suitable for high-rise buildings, comprising an expansion tank, wherein the expansion tank is provided with a water inlet and a sealing cover, the water inlet is welded to the middle of the bottom of the expansion tank, the sealing cover is fixed to the top of the expansion tank by screws, the sealing cover is provided with an air inlet valve, a pressure gauge and a through hole, the air inlet valve is threaded to the right side of the top of the sealing cover, the pressure gauge is threaded to the front end of the top of the sealing cover, the through hole is opened in the middle of the top of the sealing cover, a bushing is fixed to the top of the through hole by screws, a first sealing groove is opened at the top and bottom of the bushing, and a first sealing rubber ring is nested in the first sealing groove.

[0005] Preferably, a guide shaft is nested inside the first sealing ring, and the bottom of the guide shaft extends into the expansion tank and is integrally connected to a piston. The piston is provided with a second sealing groove and a lubricating oil passage. The second sealing groove is opened above and below the outer side of the piston, and a second sealing ring is fitted on the second sealing groove. The lubricating oil passage is opened laterally in the middle of the piston.

[0006] Preferably, the guide shaft is provided with an oil inlet pipe and an oil outlet pipe, the oil inlet pipe is integrally formed and connected to the left side inside the guide shaft, and the oil outlet pipe is integrally formed and connected to the right side inside the guide shaft.

[0007] Preferably, the bottom of both the oil inlet pipe and the oil outlet pipe are connected to the lubricating oil passage.

[0008] Preferably, a sealing gasket is placed between the sealing cap and the expansion tank.

[0009] Preferably, a sealing gasket is placed between the bushing and the through hole.

[0010] Preferably, the outer side of the second sealing ring is in contact with the inner wall of the expansion tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the water inlet of this utility model is welded to the middle of the bottom of the expansion tank, and water inlet and outlet operations can be performed through the water inlet; the air inlet valve is connected to the right side of the top of the sealing cover through a thread, and nitrogen can be pre-charged or supplemented into the expansion tank through the air inlet valve; the bottom of the oil inlet pipe and the oil outlet pipe are connected to the lubricating oil passage, which allows the lubricating oil to circulate; in summary, this utility model can easily lubricate the piston and effectively improve the stability of the expansion tank operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the sealing cap structure of this utility model; Figure 3 This is a schematic diagram of the piston structure of this utility model; In the diagram: 1-Expansion tank; 2-Water inlet; 3-Sealing cover; 4-Air inlet valve; 5-Pressure gauge; 6-Through hole; 7-Shaft sleeve; 8-First sealing groove; 9-First sealing ring; 10-Guide shaft; 11-Piston; 12-Second sealing groove; 13-Lubricating oil passage; 14-Second sealing ring; 15-Oil inlet pipe; 16-Oil outlet pipe. Detailed Implementation The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0013] like Figure 1-3As shown, a zoned heating pressure stabilizing device suitable for high-rise buildings includes an expansion tank 1. The expansion tank 1 has a water inlet 2 and a sealing cover 3. The water inlet 2 is welded to the bottom center of the expansion tank 1. The sealing cover 3 is fixed to the top of the expansion tank 1 with screws. The sealing cover 3 has an air inlet valve 4, a pressure gauge 5, and a through hole 6. The air inlet valve 4 is threaded to the top right side of the sealing cover 3, and the pressure gauge 5 is threaded to the top front end of the sealing cover 3. The through hole 6 is located in the center of the top of the sealing cover 3. A bushing 7 is fixed to the top of the through hole 6 with screws. A first sealing groove 8 is formed inside the bushing 7, with a first sealing ring 9 nested in the first sealing groove 8. A guide shaft 10 is nested inside the first sealing ring 9, and the bottom of the guide shaft 10 extends to the expansion tank. A piston 11 is integrally formed inside the tank 1. A second sealing groove 12 and a lubricating oil passage 13 are provided on the piston 11. The second sealing groove 12 is located above and below the outer side of the piston 11. A second sealing ring 14 is fitted on the second sealing groove 12. The lubricating oil passage 13 is horizontally located in the middle of the piston 11. An oil inlet pipe 15 and an oil outlet pipe 16 are provided on the guide shaft 10. The oil inlet pipe 15 is integrally formed and connected to the left side inside the guide shaft 10. The oil outlet pipe 16 is integrally formed and connected to the right side inside the guide shaft 10. The bottom of the oil inlet pipe 15 and the oil outlet pipe 16 are connected to the lubricating oil passage 13. A sealing gasket is placed between the sealing cover 3 and the expansion tank 1. A sealing gasket is placed between the bushing 7 and the through hole 6. The outer side of the second sealing ring 14 is in contact with the inner wall of the expansion tank 1. Specific usage: Connect water inlet 2 to the heating pipe, connect air inlet valve 4 to the air source, connect oil inlet pipe 15 to the oil pump pipe on the external lubricating oil tank, and connect oil outlet pipe 16 to the external lubricating oil tank; pre-charge nitrogen into expansion tank 1 through air inlet valve 4. When the water temperature of the heating system rises and causes volume expansion, excess water enters expansion tank 1 through water inlet 2. At this time, piston 11 slides upward along bushing 7 to compress the air chamber, preventing a sudden pressure rise; when the water temperature of the heating system cools down, the air chamber expands. At this time, piston 11 slides downward along bushing 7 to push water back into the heating pipe through water inlet 2, maintaining stable pressure; during the operation of expansion tank 1, oil inlet pipe 15 injects lubricating oil into lubricating oil passage 13. The lubricating oil flows into the space between the upper and lower second sealing rings 14 to lubricate piston 11; at the same time, the lubricating oil can flow back into the external lubricating oil tank through oil outlet pipe 16 for circulation.

[0014] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A zoned heating and pressure stabilizing device suitable for high-rise buildings, comprising an expansion tank (1), characterized in that: The expansion tank (1) is provided with a water inlet (2) and a sealing cover (3). The water inlet (2) is welded to the middle of the bottom of the expansion tank (1). The sealing cover (3) is fixed to the top of the expansion tank (1) by screws. The sealing cover (3) is provided with an air inlet valve (4), a pressure gauge (5) and a through hole (6). The air inlet valve (4) is connected to the right side of the top of the sealing cover (3) by threads. The pressure gauge (5) is connected to the front end of the top of the sealing cover (3) by threads. The through hole (6) is opened in the middle of the top of the sealing cover (3). A bushing (7) is fixed to the top of the through hole (6) by screws. A first sealing groove (8) is opened inside the bushing (7) at the top and bottom. A first sealing ring (9) is nested in the first sealing groove (8).

2. The zoned heating and pressure stabilizing device for high-rise buildings according to claim 1, characterized in that: The first sealing ring (9) is nested with a guide shaft (10). The bottom of the guide shaft (10) extends into the expansion tank (1) and is integrally connected to a piston (11). The piston (11) is provided with a second sealing groove (12) and a lubricating oil passage (13). The second sealing groove (12) is opened on the upper and lower sides of the piston (11). A second sealing ring (14) is fitted on the second sealing groove (12). The lubricating oil passage (13) is opened laterally in the middle of the piston (11).

3. A zoned heating and pressure stabilizing device for high-rise buildings according to claim 2, characterized in that: The guide shaft (10) is provided with an oil inlet pipe (15) and an oil outlet pipe (16). The oil inlet pipe (15) is integrally formed and connected to the left side inside the guide shaft (10), and the oil outlet pipe (16) is integrally formed and connected to the right side inside the guide shaft (10).

4. A zoned heating and pressure stabilizing device for high-rise buildings according to claim 3, characterized in that: The bottom of the oil inlet pipe (15) and the oil outlet pipe (16) are connected to the lubricating oil passage (13).

5. A zoned heating and pressure stabilizing device for high-rise buildings according to claim 1, characterized in that: A sealing gasket is placed between the sealing cap (3) and the expansion tank (1).

6. A zoned heating and pressure stabilizing device for high-rise buildings according to claim 1, characterized in that: A sealing gasket is placed between the bushing (7) and the through hole (6).

7. A zoned heating and pressure stabilizing device for high-rise buildings according to claim 2, characterized in that: The outer side of the second sealing ring (14) is in contact with the inner wall of the expansion tank (1).

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