A gradient compensation pump room

Abstract

The present application relates to a gradient compensation pump room, and to the technical field of water supply, including a pressure stabilizing device, a water supply unit, and a gradient compensation tank. The gradient compensation tank has at least two pressure zones, the water supply unit is connected to the corresponding pressure zones, and the pressure stabilizing device is used to connect the two pressure zones, the pressure of one pressure zone is greater than the pressure of the other pressure zone, and when the pressure of the pressure zone with low pressure decreases, the pressure stabilizing device connects the two pressure zones, and the pressure zone with high pressure compensates the pressure of the pressure zone with low pressure. The present application has the advantages of being able to fine-tune the pressure and reduce the number of times the pump is started.

Description

Technical Field

[0001] The present application relates to the technical field of water supply, and in particular to a gradient compensation pump room. Background Art

[0002] In equipment that needs to be pressurized, there are situations where the pressure needs to be adjusted. That is, when the pressure in the pressure zone decreases, the pressure in the pressure zone needs to be adjusted to keep the pressure in the pressure zone stable. Most existing pressure stabilizing devices increase the pressure source. For example, when the pressure in the pressure zone decreases, the pressure is adjusted through a pressure source, such as a pump. In this process, the pump is frequently started, resulting in a reduction in service life. Summary of the invention

[0003] In view of the deficiencies in the prior art, one of the purposes of the present application is to provide a gradient compensation pump room, which has the advantages of being able to fine-tune the pressure and reduce the number of pump starts.

[0004] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0005] A gradient compensation pump room comprises a pressure stabilizing device, a water supply unit and a gradient compensation tank. The gradient compensation tank has at least two pressure zones. The water supply unit is connected to the corresponding pressure zones. The pressure stabilizing device is used to connect the two pressure zones. The pressure of one pressure zone is greater than the pressure of the other pressure zone. When the pressure of the pressure zone with low pressure decreases, the pressure stabilizing device connects the two pressure zones, and the pressure zone with high pressure compensates the pressure of the pressure zone with low pressure.

[0006] In a preferred example, the present application can be further configured as follows: the pressure zones are arranged in concentric circles, and the pressures of the various pressure zones are arranged in a gradient.

[0007] In a preferred example, the present application can be further configured as follows: the water inlet main is connected to the water inlet of the first-stage water supply unit, the water outlets of each stage of water supply units are connected to the water pipeline, and the water outlets of water supply units other than the last stage are connected to the water inlet of the next water supply unit and the corresponding pressure zone.

[0008] In a preferred example, the present application can be further configured as follows: the pressure stabilizing device includes a high-pressure pipeline, a low-pressure pipeline and an adjusting mechanism, the low-pressure pipeline is connected to the low-pressure area, and the high-pressure pipeline is connected to the high-pressure area. When the pressure in the low-pressure area decreases, the adjusting mechanism moves under the action of the pressure in the high-pressure area, so that the low-pressure area and the high-pressure area are connected.

[0009] In a preferred example, the present application can be further configured as follows: the adjustment mechanism includes an adjustment member 1 and an adjustment member 2, the adjustment member 1 is provided with a connecting hole 1, the connecting hole 1 is connected to the high-pressure area, the adjustment member 2 is provided with a connecting hole 2, the connecting hole 2 is connected to the low-pressure area, and under the action of pressure, the adjustment member 1 and the adjustment member 2 can slide relative to each other so that the connecting hole 1 is connected to the connecting hole 2.

[0010] In a preferred example, the present application can be further configured as follows: the adjustment mechanism also includes a pressure adjustment component, and the pressure adjustment component is used to adjust the pressure required for the relative sliding of the adjustment member 1 and the adjustment member 2.

[0011] In a preferred example, the present application can be further configured as follows: the first regulating member includes a connecting cavity, the connecting cavity is connected to the high-pressure area, and at least a portion of the second regulating member is located in the connecting cavity.

[0012] In a preferred example, the present application can be further configured as follows: the voltage regulating assembly includes an elastic member and a contact member, the contact member is mounted on the regulating member 2, one end of the elastic member is in contact with the regulating member 1, and the other end is in contact with the contact member.

[0013] In a preferred example, the present application can be further configured as follows: an abutment member is provided on the adjusting member, a spring is located between the abutment member and the contact member, and the voltage regulating assembly further includes a distance adjusting member, and the distance adjusting member is used to adjust the distance between the abutment member and the contact member.

[0014] In a preferred example, the present application can be further configured as follows: the high-pressure pipeline also includes an anti-escape component, the anti-escape component is connected to the high-pressure area, the high-pressure area is used to accommodate medium A and medium B, and the anti-escape component is used to prevent medium A from leaking from the high-pressure pipeline.

[0015] This application has the following advantages:

[0016] The water supply unit with a higher gradient / level is superimposed by the water supply unit with a lower gradient / level, and part of the superimposed water is stored in the cavity corresponding to the gradient compensation tank through the pipeline, so as to realize negative pressure-free zoned water supply;

[0017] Each cavity is concentrically nested to ensure the reliability of the compensation tank;

[0018] The anti-escape component reduces the probability of medium A in the pressurized chamber escaping;

[0019] In the small flow pressure maintenance state, not starting or reducing the number of water pumps started can meet the pressure maintenance of each cavity, reduce the frequency of water pump starting, and improve energy saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the pipeline structure of the pump room in this application.

[0021] Figure 2 This is a schematic diagram of the internal structure of the gradient compensation tank of this application.

[0022] Figure 3 It is a schematic diagram of the structure of multiple voltage stabilizing devices of the present application.

[0023] Figure 4 It is a schematic diagram of the structure of a single voltage stabilizing device of the present application.

[0024] Figure numerals: 1. Water supply unit; 2. Gradient compensation tank; 21. Pressure partition; 3. Pressure stabilizing device; 31. Adjusting part one; 311. Connecting chamber; 312. Connecting hole one; 32. Adjusting part two; 321. Connecting hole two; 33. Pressure regulating assembly; 331. Distance adjusting part; 332. Abutting part; 333. Elastic part; 334. Contact part; 34. Anti-escape assembly; 341. Connecting pipe; 342. Pressure-bearing float; 343. Sleeve; 4. Pressure-bearing shell; 51. Flow plate; 511. Flow hole; 52. Baffle. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings.

[0026] See attached Figure 1 -Attached Figure 4 The present application discloses a gradient compensation pump room, including a pressure stabilizing device 3, and also including a water supply unit 1 and a gradient compensation tank 2. The gradient compensation tank 2 has at least two pressure zones 21. The water supply unit 1 is connected to the corresponding pressure zone 21. For example, the water supply unit 1 is connected to the pressure zone 1, that is, the water supply unit 1 corresponds to the pressure zone 1, and the pressure zone 2 has no corresponding water supply unit 2, that is, the pressure zone 2 is not connected to the water supply unit 2. In this embodiment, the correspondence is not equal, and there is a phenomenon that the number of pressure zones 21 is greater than the number of water supply units 1. In other embodiments, the correspondence can be equal, that is, the number of pressure zones 21 is equal to the number of water supply units 1. In this embodiment, the pressure zones 21 are arranged in concentric circles and are only connected through the pressure stabilizing device 3. The pressure of each pressure zone 21 is set in a gradient. For example, from the outside to the inside, the pressure zones 21 are constant pressure zones and pressure zones 1, pressure zones 2, pressure zones 3... The pressure gradually increases. The pressure stabilizing device 3 has multiple pressure zones 21 for connecting adjacent pressure zones 21. Each pressure zone 21 is concentrically nested, and utilizes the water pressure of the outer layer to offset part of the high pressure of the inner layer, thereby ensuring the reliability of the compensation tank.

[0027] The pressure stabilizing device includes a high-pressure pipeline, a low-pressure pipeline and an adjusting mechanism. The low-pressure pipeline is connected to the low-pressure area, and the high-pressure pipeline is connected to the high-pressure area. When the pressure in the low-pressure area decreases, the adjusting mechanism moves under the action of the pressure in the high-pressure area, so that the low-pressure area and the high-pressure area are connected.

[0028] The regulating mechanism comprises a regulating member 1 31 and a regulating member 2 32. The regulating member 1 31 is provided with a connecting hole 1 312 and a connecting cavity 311. The connecting hole 1 312 is connected to the high pressure area through the connecting cavity 311. The regulating member 2 32 is provided with a connecting hole 2 321. The connecting hole 2 321 is connected to the low pressure area. At least one part of the regulating member 2 32 is located in the connecting cavity 311. Under the action of pressure, the regulating member 1 31 and the regulating member 2 32 can slide relative to each other so that the connecting hole 1 312 is connected to the connecting hole 2 321.

[0029] A flow plate 51 is also provided on the regulating member 1 31 , and a plurality of flow holes 511 are provided on the flow plate 51 . A baffle 52 is provided on the regulating member 2 32 , and the baffle 52 is moved by the regulating member 2 32 and is located on a side of the flow plate 51 away from the regulating member 2 32 , so as to partially block the flow holes 511 .

[0030] Therefore, the flow hole 511 is not completely blocked during the compensation flow limiting, that is, the flow rate out of the chamber per unit time is greater than the flow rate in the chamber, thereby achieving a compensation sequence from low to high. The flow limiting also effectively prevents hydraulic shock caused by sudden pressure changes between the high-pressure area and the low-pressure area, thereby ensuring a smooth transition when the states are switched freely.

[0031] The adjustment mechanism also includes a pressure regulating assembly 33, which is used to adjust the pressure required for the relative sliding of the adjustment member 1 31 and the adjustment member 2 32. The pressure regulating assembly 33 includes an elastic member 333, a contact member 334 and a distance adjusting member 331. The contact member 334 is installed on the adjustment member 2 32. The adjustment member 1 31 is provided with an abutment member 332. The spring is located between the abutment member 332 and the contact member 334. The distance adjusting member 331 is used to adjust the distance between the abutment member 332 and the contact member 334. The abutment member 332 can be slidably connected with the adjustment member 1 31. The distance adjusting member 331 can be a bolt threadedly connected with the adjustment member 1 31. The distance adjusting member 331 contacts the abutment member 332 to move the abutment member 332 toward the contact member 334.

[0032] In other embodiments, a shell may be provided for accommodating an adjusting member 31, wherein the adjusting member 31 is installed in the shell and is slidably connected to the shell, the abutment member 332 is fixedly connected to the adjusting member 31, and the distance adjusting member 331 may be a bolt threadedly connected to the shell, and the distance adjusting member 331 and the abutment member 332 are in contact with each other to move the abutment member 332 toward the contact member 334.

[0033] The high-pressure pipeline also includes an anti-escape component 34, which is connected to the high-pressure area. The high-pressure area is used to accommodate medium A and medium B. The anti-escape component 34 is used to prevent medium A from leaking from the high-pressure pipeline. The anti-escape component 34 includes a connecting pipe 341, a sleeve 343 and a floating member. In this embodiment, the floating member is a pressure-bearing floating ball 342. The diameter of the pressure-bearing floating ball 342 is smaller than the inner diameter of the sleeve 343 and larger than the inner diameter of the connecting pipe 341. One end of the connecting pipe 341 is connected to the sleeve 343, and the other end of the connecting pipe 341 is connected to the connecting cavity 311. The sleeve 343 is connected to the high-pressure area. The floating member is located in the sleeve 343, and the floating member can float in the medium B and sink in the medium A. In this embodiment, it is spherical, and in other embodiments, it can also be other shapes. The surface of the floating member can be made of rubber material, and the connecting pipe 341 and one end located in the sleeve can also be provided with a sealing ring. The sleeve 343 is provided with a hole connected to the high pressure zone, and the pressure-bearing float 342 cannot enter the high pressure zone from the hole. For example, medium A is a gas that is insoluble in water and does not react with water and is used to pressurize the pressure zone 21, such as nitrogen, inert gas, etc., and medium B is water.

[0034] When there is sufficient water inside the high-pressure area, the pressure float 342 floats up. When the water inside the high-pressure area is insufficient to reach the connecting pipe 341, the pressure float 342 drops to the connecting pipe 341. Under the action of the air pressure in the high-pressure area, the pressure float 342 forms a seal at the connecting pipe 341, thereby preventing the gas in the high-pressure area from escaping.

[0035] The water inlet main is connected to the constant pressure zone and the water inlet of the first-stage water supply unit 1, the water outlets of each stage of water supply units 1 are connected to the water pipeline, and the water outlets of the water supply units 1 other than the last stage are connected to the water inlet of the next water supply unit 1 and the corresponding gradient boosting zone.

[0036] Take three water supply units 1 as an example, which are low-pressure unit, medium-pressure unit and high-pressure unit respectively. Pressure zone 1, pressure zone 2 and pressure zone 3 are medium-pressure cavity, high-pressure cavity and ultra-high-pressure cavity respectively. The water inlet main of the municipal pipe network is connected to the constant pressure zone and the water inlet end of the low-pressure unit. The water outlet end of the low-pressure unit is connected to the low-zone water pipeline, the water inlet end of the medium-pressure unit and the medium-pressure cavity. The water outlet end of the medium-pressure unit is connected to the middle-zone water pipeline, the water inlet end of the high-pressure unit and the high-pressure cavity. The water outlet end of the high-pressure unit is connected to the high-zone water pipeline and the ultra-high-pressure cavity; at this time, there are 3 corresponding pressure stabilizing devices 3, and the pressure stabilizing device 3 is installed in the pressure-bearing shell 4. At this time, the distance adjusting member 331 can be a bolt threadedly connected to the pressure-bearing shell 4, and the abutment member 332 includes a contact inclined surface. The distance adjusting member 331 contacts the contact inclined surface to move the abutment member 332 toward the contact member 334, and the abutment member 332 is slidably connected to the adjusting member 1 31 and / or the adjusting member 2 32.

[0037] When the water supply pressure of the municipal pipeline network is unstable or there is a water shortage, the pressure in the constant pressure zone drops. At this time, the medium pressure cavity compensates the constant pressure zone, and the high pressure cavity compensates to the medium pressure cavity and the ultra-high pressure cavity compensates to the high pressure cavity in sequence, thereby ensuring the continuous compensation state of the entire system and reducing the probability of shutdown failures caused by municipal water shortages.

[0038] The implementation principle of this embodiment is: under normal working conditions, through the action of the gradient compensation tank 2 and the pressure stabilizing device 3, it is possible to achieve low-flow pressure-maintaining operation at night when the water supply unit 1 is shut down or the number of water pump starts in the water supply unit 1 is reduced, thereby achieving long standby and energy-saving effects.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gradient compensation pump room, characterized in that: The invention comprises a pressure stabilizing device (3), a water supply unit (1) and a gradient compensation tank (2); the gradient compensation tank (2) has at least two pressure zones (21); the water supply unit (1) is connected to the corresponding pressure zones (21); the pressure stabilizing device (3) is used to connect the two pressure zones (21); the pressure of one pressure zone (21) is greater than the pressure of the other pressure zone (21); when the pressure of the pressure zone (21) with lower pressure decreases, the pressure stabilizing device connects the two pressure zones (21); the pressure zone with higher pressure compensates the pressure of the pressure zone with lower pressure; the pressure stabilizing device (3) comprises a high-pressure pipeline, a low-pressure pipeline and a regulating mechanism; the low-pressure pipeline and the low-pressure zone The high-pressure pipeline and the high-pressure area are connected. When the pressure in the low-pressure area decreases, the regulating mechanism moves under the action of the pressure in the high-pressure area, so that the low-pressure area and the high-pressure area are connected. The regulating mechanism includes a regulating member 1 (31) and a regulating member 2 (32). The regulating member 1 (31) is provided with a connecting hole 1 (312), and the connecting hole 1 (312) is connected to the high-pressure area. The regulating member 2 (32) is provided with a connecting hole 2 (321), and the connecting hole 2 (321) is connected to the low-pressure area. Under the action of pressure, the regulating member 1 (31) and the regulating member 2 (32) can slide relative to each other, so that the connecting hole 1 (312) and the connecting hole 2 (321) are connected.

2. A gradient compensation pump room according to claim 1, characterized in that: The pressure zones (21) are arranged in concentric circles, and the pressures of the pressure zones (21) are arranged in a gradient.

3. A gradient compensation pump room according to claim 2, characterized in that: The water inlet main is connected to the water inlet of the first-stage water supply unit (1), the water outlets of each stage of the water supply unit (1) are connected to the water pipeline, and the water outlets of the water supply units (1) other than the last stage are connected to the water inlet of the next water supply unit (1) and the corresponding pressure partition (21).

4. A gradient compensation pump room according to claim 1, characterized in that: The regulating mechanism also includes a pressure regulating assembly (33), wherein the pressure regulating assembly (33) is used to regulate the pressure required for relative sliding of the regulating member 1 (31) and the regulating member 2 (32).

5. A gradient compensation pump room according to claim 4, characterized in that: The first regulating member (31) comprises a connecting cavity (311), the connecting cavity (311) is connected to the high pressure area, and at least a part of the second regulating member (32) is located in the connecting cavity (311).

6. A gradient compensation pump room according to claim 5, characterized in that: The voltage regulating assembly (33) comprises an elastic member (333) and a contact member (334). The contact member (334) is mounted on the second regulating member (32). One end of the elastic member (333) contacts the first regulating member (31), and the other end contacts the contact member (334).

7. A gradient compensation pump room according to claim 6, characterized in that: The first adjusting member (31) is provided with an abutting member (332), the elastic member (333) is located between the abutting member (332) and the contact member (334), and the voltage regulating assembly (33) further comprises a distance adjusting member (331), wherein the distance adjusting member (331) is used to adjust the distance between the abutting member (332) and the contact member (334).

8. A gradient compensation pump room according to claim 1, characterized in that: The high-pressure pipeline further comprises an anti-escape component (34), the anti-escape component (34) is connected to the high-pressure area, the high-pressure area is used to accommodate medium A and medium B, and the anti-escape component (34) is used to prevent medium A from leaking from the high-pressure pipeline.

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