CN218667734U - Water hammer protection structure capable of reducing volume of air tank - Google Patents
Water hammer protection structure capable of reducing volume of air tank Download PDFInfo
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- CN218667734U CN218667734U CN202222995082.0U CN202222995082U CN218667734U CN 218667734 U CN218667734 U CN 218667734U CN 202222995082 U CN202222995082 U CN 202222995082U CN 218667734 U CN218667734 U CN 218667734U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model relates to a can reduce volumetric water hammer protective structure of air tank. The utility model aims at providing a can reduce the volumetric water hammer protective structure of air tank. The technical scheme of the utility model is that: the utility model provides a can reduce volumetric water hammer protective structure of air tank, is responsible for at the water supply and connects the air tank through the connecting pipe, its characterized in that: the connecting pipe comprises a large connecting pipe and a small connecting pipe which are communicated with the water supply main pipe and the air tank, wherein the large connecting pipe is provided with a check valve which can be opened only when the air tank supplies water to the water supply main pipe. The utility model is suitable for a long distance pump station water lift engineering.
Description
Technical Field
The utility model relates to a can reduce volumetric water hammer protective structure of air tank. The method is suitable for water lifting projects of long-distance pump stations.
Background
The selection of the water hammer protection measures has great influence on the safety and the economical efficiency of the long-distance water pump water lifting project. The water hammer protection is more and more applied by utilizing the air tank in the water pump lifting project with small flow and high lift, and the main reasons are that the air tank is arranged in a pump room, so that the management is convenient, the operation is reliable and the water hammer protection effect is good.
The air tank is a closed high-pressure container, the upper part of the air tank is high-pressure gas, the lower part of the air tank is water, and water hammer waves are reflected by the compression and expansion characteristics of the gas, so that water level fluctuation is inhibited, and the safe and stable operation of a water delivery system is ensured. After the air tank is arranged for protection, high-pressure gas in the tank drives the water body in the tank to supplement the pipeline so as to avoid the too fast pressure drop in the pipeline.
At present, in order to avoid overlarge air pressure in an air tank caused by backflow of water flow to the air tank, the air tank is arranged into a larger air tank or an air bag type air tank, and the larger air tank causes overhigh protection cost and inconvenient operation and management; the airbag type air tank has a large cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: to solve the existing problems, the water hammer protection structure capable of reducing the volume of the air tank is provided.
The utility model adopts the technical proposal that: the utility model provides a can reduce volumetric water hammer protective structure of air tank, is responsible for at the water supply and connects the air tank through the connecting pipe, its characterized in that: the connecting pipe comprises a large connecting pipe and a small connecting pipe which are communicated with the water supply main pipe and the air tank, wherein the large connecting pipe is provided with a check valve which can be opened only when the air tank supplies water to the water supply main pipe.
The pipe diameter of the large connecting pipe is 1/2 of that of the water supply main pipe; the diameter of the small connecting pipe is 1/2 of that of the large connecting pipe.
The large connecting pipe is provided with a maintenance valve I; and the small connecting pipe is provided with a maintenance valve II.
The utility model has the advantages that: the utility model discloses a set up big connecting pipe and little connecting pipe between water supply main pipe and air tank, and install the check valve that only can open when the air tank supplies water to the water supply main pipe on big connecting pipe, when the water pump cuts off the power supply, when pressure drops fast in the pipeline, the check valve on the big connecting pipe is opened and is cooperated little connecting pipe and supply water to the water supply main pipe jointly, prevent that the pipeline system from appearing great pressure drop, thus can prevent the emergence of water column separation phenomenon, avoid because the water column separation takes place to destroy; when the water flows backwards, the check valve is closed, and the water entering the air tank can only enter through the small connecting pipe, so that excessive water is prevented from entering the air tank, excessive air pressure in the air tank is further prevented, and the volume of the air tank can be properly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
1. A gas supply main pipe; 2. an air tank; 3. a large connecting pipe; 4. a small connecting pipe; 5. overhauling a valve I; 6. overhauling a valve II; 7. a non-return valve.
Detailed Description
As shown in fig. 1, in the water hammer protection structure capable of reducing the volume of the air tank of the present embodiment, the air tank is connected to the main water supply pipe through a connecting pipe, the connecting pipe includes a large connecting pipe and a small connecting pipe, wherein two ends of the large connecting pipe are respectively communicated with the main water supply pipe and the air tank, the large connecting pipe is provided with a check valve and an inspection valve i, and the check valve can be opened only when the air tank supplies water to the main water supply pipe; two ends of the small connecting pipe are respectively communicated with the main water supply pipe and the air tank, and the small connecting pipe is provided with an overhaul valve II.
In the embodiment, the diameter of the large connecting pipe is about 1/2 of the diameter of the main water supply pipe; the diameter of the small connecting pipe is about 1/2 of the diameter of the large connecting pipe.
In the embodiment, the maintenance valves on the large connecting pipe and the small connecting pipe are both opened in normal operation; and valves on the large connecting pipe and the small connecting pipe are closed when the air tank is overhauled or maintained.
The working principle of the embodiment is as follows: for long-distance water supply engineering, the pressure reduction wave generated when the water pump is powered off is more concerned, the check valve on the large connecting pipe and the small connecting pipe are opened to supply water to the water supply main pipe together, and the large pressure drop of the pipeline system is prevented, so that the water column separation phenomenon can be prevented, and the damage caused by the water column separation is avoided; when water flows back, the check valve is closed, and water entering the air tank can only enter through the small connecting pipe, so that excessive water is prevented from entering the air tank, and the volume of the air tank can be reduced.
The above-mentioned embodiment is only used for explaining the utility model discloses a design, and not right the utility model discloses a limited of right protection, all utilize this design right the utility model discloses carry out immaterial change, all should fall into the scope of protection of the utility model.
Claims (3)
1. The utility model provides a can reduce volumetric water hammer protective structure of air tank, is responsible for at the water supply and connects the air tank through the connecting pipe, its characterized in that: the connecting pipe comprises a large connecting pipe and a small connecting pipe which are communicated with the water supply main pipe and the air tank, wherein the large connecting pipe is provided with a check valve which can be opened only when the air tank supplies water to the water supply main pipe.
2. A water hammer prevention structure capable of reducing a volume of an air tank in accordance with claim 1, wherein: the pipe diameter of the large connecting pipe is 1/2 of that of the water supply main pipe; the diameter of the small connecting pipe is 1/2 of that of the large connecting pipe.
3. A water hammer prevention structure capable of reducing a volume of an air tank in accordance with claim 1, wherein: the large connecting pipe is provided with a maintenance valve I; and the small connecting pipe is provided with an overhaul valve II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222995082.0U CN218667734U (en) | 2022-11-10 | 2022-11-10 | Water hammer protection structure capable of reducing volume of air tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222995082.0U CN218667734U (en) | 2022-11-10 | 2022-11-10 | Water hammer protection structure capable of reducing volume of air tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218667734U true CN218667734U (en) | 2023-03-21 |
Family
ID=85537016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222995082.0U Active CN218667734U (en) | 2022-11-10 | 2022-11-10 | Water hammer protection structure capable of reducing volume of air tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218667734U (en) |
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2022
- 2022-11-10 CN CN202222995082.0U patent/CN218667734U/en active Active
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