CN201288358Y

CN201288358Y - Waterproof hammer non negative-pressure feed water equipment

Info

Publication number: CN201288358Y
Application number: CNU2008202074705U
Authority: CN
Inventors: 张明亮; 王学成; 吕廷顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-29
Filing date: 2008-10-29
Publication date: 2009-08-12
Anticipated expiration: 2018-10-29

Abstract

The utility provides a waterproof hammer negative pressure-free water supply equipment consisting of safe relief valve, current stabilization compensator, vacuum suppressor, water pump, check-valves, control cabinet and pressure sensor; the water intake pipe for tap water is installed with a safe relief valve, then communicated with the current stabilization compensator, then water pump water inlet; water outlet from water pump directly supplies to user via check-valves and water outlet main pipe of the equipment which is provided with a pressure sensor and safe relief valve. The water supply equipment can effectively prevent damage and impact of water hammer when pump is stopped so as to protect equipment and prolong the life time of equipment; and the system is simple and suitable for secondary pressurization water supply occasion of frequent power failure or frequent startup.

Description

Anti-water hammer no-negative-pressure water supply equipment

1, technical field

The utility model relates to a kind of secondary pressurizing feedwater equipment, specifically a kind of anti-water hammer no-negative-pressure water supply equipment.

2, background technology

At present, no-negative-pressure water supply equipment can utilize original pressure of tap water pipe network because of it, and applied at water supply pump station, but the no-negative-pressure water supply equipment of prior art becomes a closed system because of having cancelled the pond with pipe network, during the unexpected termination of pumping of equipment, have the backwater water hammer in the equipment water side, there is to come the water water hammer in arrival end, two water hammers affact on the no-negative-pressure water supply equipment simultaneously from opposite direction, endanger bigger.

The no-negative-pressure water supply equipment of prior art is all being continued to use traditional Slow Close Valve, fluid-controlled valve aspect the elimination water hammer, the Slow Close function of having ignored Slow Close Valve, fluid-controlled valve exactly make the backwater water hammer pressure be able to by and directly affact on water pump and the steady flow compensator, both are caused bigger harm.

3, utility model content

For overcoming above-mentioned the deficiencies in the prior art, the utility model provides a kind of reduced investment, can prevent the no-negative-pressure water supply equipment that water hammer destroys again.

The technical scheme that its technical problem that solves the utility model adopts is: anti-water hammer no-negative-pressure water supply equipment is made up of steady flow compensator, vacuum suppresser, water pump, switch board, flap valve, safety relief valve, terminal pressure sensor, the tap water water inlet pipe is connected with steady flow compensator after adding a safety relief valve, link to each other with water pump again, water pump water outlet is directly received on user's water supply network through flap valve, outfall sewer, and at outfall sewer installing safety relief valve.During normal the operation, control system realizes constant pressure water-supply by the force value that detects the upper hose pressure sensor, during termination of pumping suddenly, the water hammer of equipment turnover water end (W.E.) makes ductwork pressure fluctuation occur, and when force value surpassed the setting value of safety relief valve, safety relief valve was opened automatically, the draining pressure release, to reduce the impact of water hammer, reach safe and reliable, the effect that prolongs equipment life to equipment.

The beneficial effects of the utility model are, replace Slow Close Valve with damping check valve, and at no-negative-pressure water supply equipment water inlet and outfall sewer installing safety relief valve, can prevent when termination of pumping suddenly water hammer effectively to the impact and the destruction of no-negative-pressure water supply equipment, and system is simple, reliable and prolong equipment life.

4, description of drawings

Accompanying drawing 1 is a process structure schematic diagram of the present utility model.

Among the figure, 1, the tap water water inlet pipe, 2, safety relief valve, 3, vacuum suppresser, 4, steady flow compensator, 5, switch board, 6, water pump, 7, pressure sensor, 8, flap valve, 9, the equipment outfall sewer.

5, the specific embodiment

Explain below doing with regard to 1 pair of anti-water hammer pressing non-negative-pressure water supply facilities of the present utility model of accompanying drawing below.

As shown in Figure 1, anti-water hammer no-negative-pressure water supply equipment of the present utility model is by safety relief valve (2), vacuum suppresser (3), steady flow compensator (4), switch board (5), water pump (6), pressure sensor (7) and flap valve (8) are formed, tap water water inlet pipe (1) installing safety relief valve (2) back is connected with steady flow compensator (4), receive water pump (6) water inlet again, water pump (6) water outlet directly is conducted to the user behind the equipment outfall sewer (9) of flap valve (8) and installing safety relief valve (2), and goes up installing pressure sensor (7) at equipment outfall sewer (9).During termination of pumping suddenly, the water hammer of equipment turnover water end (W.E.) makes ductwork pressure fluctuation occur, when force value surpasses the setting value of safety relief valve, safety relief valve is opened the draining pressure release automatically, to reduce the impact of water hammer, reach safe and reliable, the effect that prolongs equipment life to equipment.

Institute it should be noted that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, the technical solution of the utility model is made amendment or is equal to replacement, and do not break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of wooden utility model.

Claims

1, a kind of anti-water hammer no-negative-pressure water supply equipment is made up of Inlet and outlet water house steward's safety relief valve, steady flow compensator, vacuum suppresser, water pump, flap valve, switch board and pressure sensor, it is characterized in that: be connected with steady flow compensator behind the tap water water inlet pipe installing safety relief valve, be connected to pump intake again, water pump water outlet directly is conducted to the user behind flap valve, outfall sewer, and installs safety relief valve and pressure sensor on outfall sewer.

2, anti-water hammer no-negative-pressure water supply equipment according to claim 1 is characterized in that: replace Slow Close Valve at the equipment delivery port with damping check valve, and install safety relief valve equipment water-in and water-out house steward.