CN211547901U

CN211547901U - Water hammer protection device

Info

Publication number: CN211547901U
Application number: CN201922377712.6U
Authority: CN
Inventors: 吴炜岚; 陈爱将
Original assignee: Hangzhou Shuangcheng Water Supply Equipment Co ltd
Current assignee: Hangzhou Shuangcheng Water Supply Equipment Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-22
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a water hammer protector, including the water storage tank main part, the lower extreme of water storage tank main part is connected with the water pump bulk phase through first pipeline, and the upper end of water pump main part is linked together with first buffer tank through the second pipeline, and first buffer tank is connected with the second buffer tank through the circulation control pipeline, install the valve subassembly on the circulation control pipeline, the upper end of circulation control pipeline is connected with the back flow path through the tee bend, and the flange is passed through to the one end of back flow path and is connected with the second buffer tank. The utility model discloses a be provided with buffer tank cooperation water hammer annihilator, the inside of water hammer annihilator has an inclosed appearance air cavity, and the lower extreme is a piston, and when the shock wave spread into the water hammer annihilator into, on the water hammer acts on the piston, the piston will be toward the motion of appearance air cavity direction, and the piston is under the gas of certain pressure and irregular water hammer dual function, does the up-and-down motion, forms a dynamic balance, just so has eliminated anomalous water hammer effectively and has vibrate.

Description

Water hammer protection device

Technical Field

The utility model relates to a water hammer protection technical field specifically is a water hammer protector.

Background

In a pressure pipeline, the flow rate of water is suddenly changed due to some external reasons (such as sudden closing of a valve and sudden stop of a water pump unit), so that water hammer is caused, and the hydraulic phenomenon is called water hammer or water hammer. The water hammer is called a water hammer because the water hammer generates water flow shock waves like a hammer is knocked when a power failure occurs suddenly or when a valve is closed too fast due to the inertia of pressure water flow. The force generated by the water flow shock wave back and forth is sometimes very large, thus damaging the valve and the water pump. When the electric water pump is started at full voltage, the speed can be accelerated to the rated speed from a static state in less than 1s, and the flow in the pipeline is increased from zero to the rated flow. Because of the momentum and degree of compressibility of the fluid, a sharp change in flow will cause either too high or too low a pressure impact within the pipe and the appearance of "cavitation". The impact of the pressure will force the pipe wall to make noise as if a hammer were hitting the pipe, known as the "water hammer effect".

The protective effect of the existing water hammer protective device is poor, and the valve component and the tank body are easily damaged by impact, so that the market urgently needs to develop a novel water hammer protective device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water hammer protector to the water hammer protector protecting effect who proposes in solving above-mentioned background is relatively poor, easily causes impact damage scheduling problem to valve member and jar body.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a water hammer protector, includes the water storage tank main part, the lower extreme of water storage tank main part is connected with the water pump bulk phase through first pipeline, and the upper end of water pump main part is linked together through second pipeline and first buffer tank, and first buffer tank is located one side of water storage tank main part, the drainage branch pipe is installed to the upper end of first buffer tank, and first buffer tank is connected with the second buffer tank through the circulation control pipeline, install the valve member on the circulation control pipeline, the upper end of circulation control pipeline is connected with the back flow line through the tee bend, and the one end of back flow line is passed through the flange and is connected with the second buffer tank.

Preferably, a water pressure gauge is installed on the second pipeline.

Preferably, a steering valve is arranged on the return pipeline.

Preferably, a water hammer eliminator is installed inside the water storage tank main body.

Preferably, an air containing cavity is arranged inside the water hammer eliminator.

Preferably, the lower end of the water hammer eliminator is provided with a piston, and the upper end of the piston is connected with a piston head through a guide pillar.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the water storage tank main part internally mounted has the water hammer annihilator, the inside of water hammer annihilator is provided with the gas chamber, the piston is installed to the lower extreme of water hammer annihilator, the water hammer annihilator can be under the condition that need not to stop the fluid flow, eliminate the irregular water hammer wave shock that various kinds of fluid hammer and surge take place outside the water that transmission system probably produced effectively, thereby reach and eliminate the shock wave that has the destructiveness, play the purpose of protection, there is an inclosed gas chamber in the inside of water hammer annihilator, the lower extreme is a piston, when the shock wave spreads into the water hammer annihilator, water hammer wave acts on the piston, the piston will move toward the gas chamber direction. The stroke of the piston movement is related to the gas pressure in the gas containing cavity and the size of the water shock wave, and the piston moves up and down under the dual actions of gas with certain pressure and irregular water shock to form dynamic balance, so that irregular water shock wave oscillation is effectively eliminated;

(2) the upper end of water pump main part is linked together through second pipeline and first buffer tank, and first buffer tank is connected with the second buffer tank through the circulation control pipeline, through being provided with two sets of buffer tanks, can cushion the protection to how big rivers, prevents that rivers from directly following the pipeline discharge on the water storage tank, causes the excessive pressure to pipeline and valve member.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the rear end structure of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a schematic view of the internal structure of the water storage tank main body of the present invention;

fig. 5 is a schematic structural diagram of the water hammer arrestor of the present invention.

In the figure: 1. a water pressure gauge; 2. a drain branch pipe; 3. a second buffer tank; 4. a first buffer tank; 5. a water storage tank main body; 6. a first pipeline; 7. a water pump main body; 8. a second pipeline; 9. a circulation control pipeline; 10. a return line; 11. a tee joint; 12. a valve assembly; 13. a steering valve; 14. a water hammer arrestor; 15. an air containing cavity; 16. a piston head; 17. a piston.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a water hammer protector, including water storage tank main part 5, the lower extreme of water storage tank main part 5 is connected with water pump main part 7 through first pipeline 6, the upper end of water pump main part 7 is linked together through second pipeline 8 and first buffer tank 4, first buffer tank 4 is located one side of water storage tank main part 5, drainage branch pipe 2 is installed to the upper end of first buffer tank 4, first buffer tank 4 is connected with second buffer tank 3 through circulation control pipeline 9, install valve member 12 on the circulation control pipeline 9, the upper end of circulation control pipeline 9 is connected with return line 10 through tee bend 11, the one end of return line 10 is passed through the flange and is connected with second buffer tank 3.

Further, a water pressure gauge 1 is installed on the second pipeline 8.

Further, a steering valve 13 is installed on the return line 10.

Further, a water hammer arrestor 14 is installed inside the water storage tank main body 5.

Further, the inside of the water hammer arrestor 14 is provided with a gas containing chamber 15.

Further, a piston 17 is installed at the lower end of the water hammer arrestor 14, and the upper end of the piston 17 is connected to the piston head 16 through a guide post.

The working principle is as follows: when the water hammer type water hammer eliminator is used, the lower end of the water storage tank main body 5 is connected with the water pump main body 7 through the first pipeline 6, the upper end of the water pump main body 7 is communicated with the first buffer tank 4 through the second pipeline 8, the first buffer tank 4 is connected with the second buffer tank 3 through the circulation control pipeline 9, through the arrangement of the two groups of buffer tanks, how large water flow can be buffered and protected, the water flow is prevented from being directly discharged from the pipeline on the water storage tank main body 5 to cause over-pressure to a pipeline and a valve component, the water hammer eliminator 14 is installed inside the water storage tank main body 5, the air accommodating cavity 15 is arranged inside the water hammer eliminator 14, the piston 17 is installed at the lower end of the water hammer eliminator 14, the upper end of the piston 17 is connected with the piston head 16 through a guide pillar, when shock waves are transmitted into the water hammer eliminator 14, the water hammer waves act on the piston 17, the piston 17 moves towards the direction of, The size of the water shock wave is related, the piston 17 moves up and down under the double actions of gas with certain pressure and irregular water shock to form dynamic balance, so that irregular water shock wave shock is effectively eliminated, and a good safety protection effect is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a water hammer protector, includes water storage tank main part (5), its characterized in that, the lower extreme of water storage tank main part (5) is connected with water pump main part (7) through first pipeline (6), and the upper end of water pump main part (7) is linked together through second pipeline (8) and first buffer tank (4), and first buffer tank (4) are located one side of water storage tank main part (5), drainage branch pipe (2) are installed to the upper end of first buffer tank (4), and first buffer tank (4) are connected with second buffer tank (3) through circulation control pipeline (9), install valve member (12) on circulation control pipeline (9), the upper end of circulation control pipeline (9) is connected with return line (10) through tee bend (11), and the one end of return line (10) is passed through the flange and is connected with second buffer tank (3).

2. A water hammer guard according to claim 1, wherein: and a water pressure gauge (1) is arranged on the second pipeline (8).

3. A water hammer guard according to claim 1, wherein: and a steering valve (13) is arranged on the return pipeline (10).

4. A water hammer guard according to claim 1, wherein: and a water hammer eliminator (14) is arranged inside the water storage tank main body (5).

5. A water hammer guard according to claim 4, wherein: an air containing cavity (15) is arranged inside the water hammer eliminator (14).

6. A water hammer guard according to claim 4 or claim 5, wherein: the lower end of the water hammer eliminator (14) is provided with a piston (17), and the upper end of the piston (17) is connected with a piston machine head (16) through a guide post.