Novel separating type water hammer eliminating box structure

Abstract

The utility model discloses a novel separating type water hammer eliminating box structure which comprises a water tank and an air tank, a plurality of air valves are arranged at the top of the water tank, a maintenance butterfly valve is arranged at the top of the air tank, and the air valves are connected with the maintenance butterfly valve through a second connecting pipeline or communicated with the atmosphere. The bottom of the water tank is connected with one end of the regulating valve through a first connecting pipeline, and the other end of the regulating valve is connected with the water conveying pipeline. According to the novel separated water hammer eliminating box structure, an air bag structure is omitted, investment is saved, compared with a non-water-gas separation air tank, the novel separated water hammer eliminating box structure is provided with three air valves, water-gas contact is isolated through the in-pipe air valves, the gas dissolution rate is reduced, frequent gas supplementing is not needed, and in addition, under the condition that the in-pipe air valves fail, the water hammer eliminating box structure is convenient to operate. And normal operation of equipment is guaranteed through the air valve externally connected with atmosphere, and the requirement for water hammer protection is met.

Description

Technical Field

[0001] The utility model relates to the field of water supply and drainage, in particular to a novel separated water hammer elimination tank structure. Background Technique

[0002] With the advancement of the water network and the construction of large-scale complex water supply and drainage projects across regions and river basins, the problem of hydraulic safety has been paid more and more attention. To ensure the safety of the water supply and drainage system, an air tank is often used as a water hammer protection measure. However, the air bag type air tank is prone to aging, rupture and water quality pollution after long-term use, the protection effect is not good, and the replacement cost is high; while the gas dissolution rate of the non-water-gas separation air tank is relatively large, and the protection effect is weak when the pressure drops, and frequent air replenishment is required.

[0003] Based on the above situation, the utility model proposes a multi-point riveting device for the cover plate of a new energy electromagnetic cooler to effectively solve the above problems. Content of the Utility Model

[0004] In order to solve the problems in the background technique, the utility model provides a novel separated water hammer elimination tank structure.

[0005] The utility model adopts the following technical scheme:

[0006] A novel separated water hammer elimination tank structure includes a water tank and also includes an air tank. A plurality of air valves are arranged at the top of the water tank, and a maintenance butterfly valve is arranged at the top of the air tank. The air valves are connected with the maintenance butterfly valve through a second connecting pipeline or communicated with the atmosphere. One end of the water tank is connected with a regulating valve through a first connecting pipeline, and the other end of the regulating valve is connected with a water delivery pipeline.

[0007] Further, the two air valves are respectively connected with the two maintenance butterfly valves through a second connecting pipeline.

[0008] Further, an exhaust port butterfly valve is arranged at the bottom of the air tank.

[0009] Further, an air replenishment component is arranged on the side of the air tank.

[0010] Further, the air replenishment component includes an air replenishment butterfly valve and an air compressor. Two ends of the air replenishment butterfly valve are respectively connected with a gas cylinder and the air compressor through an air replenishment pipeline.

[0011] Further, a safety valve is arranged at the top of the air tank.

[0012] Further, a safety valve is arranged at the top of the water tank.

[0013] Further, a water pump and a valve after the pump are arranged on the water supply pipe.

[0014] The novel separated water hammer elimination tank structure provided by the utility model:

[0015] 1. There is no need to set up an airbag, which reduces costs and saves investment.

[0016] 2. All the said components are outside the equipment, the component replacement is simple, the operation and maintenance costs are low, and investment is saved.

[0017] 3. The airbag structure is cancelled, avoiding the pollution of water body by the airbag material.

[0018] 4. Compared with the traditional non-water-gas separation type air tank structure, the new type of separation type water hammer elimination tank structure uses an in-pipe air valve structure to separate the water body from the gas. During the normal operation process, there is no problem of gas dissolution and dissipation, the air replenishment frequency is reduced, and the operation and maintenance are simple.

[0019] 5. An air valve connecting to the atmosphere is set to prevent the failure of the in-pipe air valve, improve the reliability of the equipment, have no failure risk, and better guarantee the safety of the water supply and drainage system. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0021] The serial numbers marked in the figure are successively represented as: 1 - water pump; 2 - valve behind the pump; 3 - water conveyance pipeline; 4 - first connecting pipeline; 5 - regulating valve; 6 - water tank; 7 - air valve; 8 - second connecting pipeline; 9 - maintenance butterfly valve; 10 - air tank; 11 - air replenishment pipeline; 12 - air replenishment butterfly valve; 13 - air compressor; 14 - exhaust port butterfly valve; 15 - safety valve. Detailed Embodiment

[0022] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] A new type of separation type water hammer elimination tank structure includes a water tank 6 and also includes an air tank 10. A plurality of air valves 7 are provided at the top of the water tank 6, and a maintenance butterfly valve 9 is provided at the top of the air tank 10. Closing the butterfly valve can perform maintenance and other work on the air tank 10. The air valve 7 is connected to the maintenance butterfly valve 9 through a second connecting pipeline 8, or is connected to the atmosphere. The air valve 7 connected to the atmosphere is used to isolate water and gas and reduce gas dissolution and dissipation. The bottom of the water tank 6 is connected to one end of a regulating valve 5 through a first connecting pipeline 4, and the other end of the regulating valve 5 is connected to a water conveyance pipeline 3.

[0024] The two air valves 7 are respectively connected to the two maintenance butterfly valves 9 through the second connecting pipelines 8, and the two second connecting pipelines 8 are in standby for each other.

[0025] An exhaust port butterfly valve 14 is provided at the bottom of the air tank 10.

[0026] The side of the gas tank 10 is provided with a gas replenishing component. The gas replenishing component includes a gas replenishing butterfly valve 12 and an air compressor 13. Both ends of the gas replenishing butterfly valve 12 are respectively connected to the gas cylinder and the air compressor 13 through a gas replenishing pipeline 11. The end of the gas replenishing pipeline 11 is connected to the air compressor 13 for replenishing gas to the gas tank 10. An exhaust port is arranged at the bottom of the tank, and a valve is arranged at the exhaust port, which remains normally closed during operation. When the pressure of the gas tank 10 is less than the set pressure value, the air compressor 13 is used to replenish gas to the gas tank 10. When the pressure of the gas tank 10 is greater than the set value, the valve of the exhaust port is opened to release the excess gas and keep the pressure of the gas tank 10 constant.

[0027] A safety valve 15 is arranged at the top of the gas tank 10. A safety valve 15 is arranged at the top of the water tank 6. The safety valve 15 is used for protective measures in case of overpressure.

[0028] A water pump 1 and a valve 2 after the pump are arranged on the water supply pipe.

[0029] The operation mode of the new type of separated water hammer elimination tank structure includes:

[0030] Water filling process:

[0031] Step 1: In the initial state, the water pump is stopped, the valve after the pump is closed, there is no water in the separated water hammer elimination tank, the regulating valve and the air valve are in the open state.

[0032] Step 2: The water pump is started, the valve after the pump is opened, water is filled into the water supply pipeline, and water is filled into the water tank through the connecting pipe. The gas in the water tank is compressed. Part of the gas enters the gas tank through the air valve in the pipe, and part of it slowly discharges through the air valve connected to the atmosphere.

[0033] Step 3: The water tank is filled with water, the air valve connected to the atmosphere and the air valve in the pipe are closed simultaneously, and the gas tank stores gas with a certain pressure.

[0034] Step 4: Check whether the pressure of the gas tank reaches the set value. If not, open the air compressor to replenish gas to the gas tank to make the pressure of the gas tank meet the requirements. If the pressure of the gas tank is too high, open the butterfly valve of the exhaust port at the bottom of the gas tank to release a certain amount of gas to reach the required value.

[0035] Power-off water replenishing operation mode:

[0036] Step 1: In the initial state, the water tank is full of water, the air valve is closed, the water pump loses power, the valve after the pump is closed, and the pressure of the water supply pipeline drops. Due to inertia, the water body continues to flow along the water supply direction.

[0037] Step 2: The water in the water tank replenishes the water pipeline through the connecting pipe. The water level in the water tank drops, the floating body in the air valve falls, and both the in-pipe air valve and the air valve communicating with the atmosphere open. The high-pressure gas in the air tank replenishes the water tank through the in-pipe air valve along the second pipeline, preventing negative pressure from being generated in the pipeline. Since the initial pressure of the air tank is higher than the atmospheric pressure, the pressure of the gas entering the water tank is higher than the atmospheric pressure, and a part of the gas is discharged into the atmosphere through the air valve connecting to the atmosphere.

[0038] Step 3: The water in the water pipeline flows back, and the water flow enters the water tank through the connecting pipe. The gas at the top of the water tank is compressed. A part of it slowly discharges into the air tank through the in-pipe air valve, and a part slowly discharges through the air valve connecting to the atmosphere, forming a certain air cushion effect to weaken the positive pressure.

[0039] Step 4: After experiencing multiple processes of water replenishment and water flow back, the water delivery system finally reaches a stable state.

[0040] Fault operation mode of the in-pipe air valve:

[0041] Step 1: In the initial state, the water tank is full of water, the air valve is closed, the water pump loses power, the valve behind the pump is closed, and the pressure of the water pipeline drops. Due to inertia, the water body continues to flow along the water delivery direction.

[0042] Step 2: The water in the water tank replenishes the water pipeline through the connecting pipe. The water level in the water tank drops, the in-pipe air valve fails to act, the air valve communicating with the atmosphere opens, and air quickly enters to prevent negative pressure from being generated in the pipeline.

[0043] Step 3: The water in the water pipeline flows back, and the water flow enters the water tank through the connecting pipe. The gas at the top of the water tank is compressed. The in-pipe air valve fails, and the gas slowly discharges through the air valve connecting to the atmosphere, also forming a certain air cushion effect to weaken the positive pressure.

[0044] Step 4: After experiencing multiple processes of water replenishment and water flow back, the water delivery system finally reaches a stable state.

[0045] The structure of the separated water hammer elimination tank cancels the airbag structure, saving investment. Compared with the non-water-gas separation air tank, the novel separated water hammer elimination tank structure of the present invention is provided with three air valves. The in-pipe air valve isolates the contact between water and gas, reducing the gas dissolution rate and eliminating the need for frequent gas replenishment. In addition, in the case of the failure of the in-pipe air valve, the normal operation of the equipment is ensured through the air valve connecting to the atmosphere, meeting the requirements of water hammer protection.

[0046] Note that the above is only the preferred embodiment of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A novel structure of a separated water hammer elimination tank, including a water tank, characterized in that, It further includes an air tank. A plurality of air valves are provided at the top of the water tank, and a maintenance butterfly valve is provided at the top of the air tank. The air valves are connected to the maintenance butterfly valve through a second connecting pipeline or communicated with the atmosphere. The bottom of the water tank is connected to one end of a regulating valve through a first connecting pipeline, and the other end of the regulating valve is connected to a water delivery pipeline.

2. A novel separable water hammer elimination tank structure according to claim 1, characterized in that, Two of the air valves are respectively connected to two maintenance butterfly valves through a second connecting pipeline.

3. A novel separable water hammer elimination tank structure according to claim 1, characterized in that, An exhaust port butterfly valve is provided at the bottom of the air tank.

4. A novel separable water hammer elimination tank structure according to claim 1, wherein, An air replenishing assembly is provided on the side of the air tank.

5. A novel separable water hammer elimination tank structure according to claim 4, characterized in that, The air replenishing assembly includes an air replenishing butterfly valve and an air compressor. Two ends of the air replenishing butterfly valve are respectively connected to a gas cylinder and the air compressor through an air replenishing pipeline.

6. A novel separable water hammer elimination tank structure according to claim 1, characterized in that, A safety valve is provided at the top of the air tank.

7. A novel separable water hammer elimination tank structure according to claim 1, characterized in that, A safety valve is provided at the top of the water tank.

8. A novel separable water hammer elimination tank structure according to claim 1, characterized in that, A water pump and a post-pump valve are provided on the water supply pipe.

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