CN103256421B - Electromagnetic zone control valve for high-pressure water mist extinguishing system - Google Patents

Abstract

An electromagnetic zone control valve for a high-pressure water mist extinguishing system comprises a valve body (1), a main valve seat (2), a main spool (3), a spring A (4), a bonnet (5), an emergency spool (6), an emergency operating rod (7), an armature sleeve (9), an electromagnetic armature (10), a pilot spool (11) and a spring B (12). The electromagnetic zone control valve has the advantage that the problems that the existing zone control valve is prone to mistaken opening, long in opening time, and prone to failure and leakage in repeated opening and closing are solved.

Description

High-pressure fine water mist fire-extinguishing system electromagnetism partitioning control valve

Technical field

The present invention relates to fire-fighting equipment field, be specifically related to high-pressure fine water mist fire-extinguishing system electromagnetism partitioning control valve.

Background technology

Existing water mists partitioning control valve, rated operating pressure is on the low side, is 2.5Mpa, 6.3Mpa, 12Mpa; Material: copper alloy, intensity angle.

Current water mists partitioning control valve has: the electrical ball valve of working power AC220V, magnetic valve, waterpower reduce pressure driving subregion valve.Water mist system stabilized pressure pump normally opens/constantly running time water pressure fluctuations and main high pressure fire fighting pump startup time hydraulic pressure poly-ly to increase, often cause hydrodynamic(al) pressure-reducing partitioning control valve surprisingly to open water outlet, cause the accident loss; The product of AC220V Energy control is adopted to lie dormant the potential safety hazard of getting an electric shock; After adopting magnetic valve pattern repeatedly to open, closing, often there is jam, close packing less fault.These similar products are among the protection place that metallurgy, electric power, storage, traffic, book and file etc. are important uses, and misoperation occurs often, causes unnecessary economic loss; Operating voltage is high, starts water outlet slow, there is potential safety hazard.

Summary of the invention

Object of the present invention is exactly for the above-mentioned deficiency of current existing water mists partitioning control valve, and provides a kind of high-pressure fine water mist fire-extinguishing system electromagnetism partitioning control valve.

The present invention is by valve body, main valve seat, main valve plug, A spring, valve gap, emergent spool, emergency operation bar, armature cover, electromagnet armature, pilot valve and B spring composition, A runner is respectively equipped with in valve body, B runner, C runner and first export mouth, C runner is provided with A small damping device, main valve seat is arranged on the water inlet of valve body, main valve seat is respectively equipped with D runner and E runner, A runner and C runner communicate with the water inlet of valve body respectively by D runner and E runner, B runner communicates with the first export mouth on valve body, valve gap is arranged on valve body, main valve plug is arranged on the water outlet of valve body, valve gap and main valve plug are respectively equipped with spring fitting groove, A both ends of the spring is connected with main valve plug with valve gap respectively, and lay respectively in the spring fitting groove of valve gap and main valve plug, main valve plug is provided with delivery port, the delivery port of main valve plug communicates with the delivery port of valve body, the water outlet of main valve plug is provided with B small damping device, valve gap is respectively equipped with F runner, G runner and delivery port, F runner two ends communicate with the delivery port of the B runner on valve body and main valve plug respectively, G runner two ends communicate with the A runner of valve body and the delivery port of valve gap respectively, emergent spool is arranged on the water outlet of valve body, emergency operation bar is arranged on emergent spool one end, and locked by locking nut, armature cover is sleeved on electromagnet armature, and be positioned at the guide exit of valve body, electromagnet armature is provided with B spring fitting groove, B both ends of the spring overlaps with armature respectively and is connected with electromagnet armature, and one end is positioned at the mounting groove of electromagnet armature, pilot valve is arranged on electromagnet armature one end, and be positioned at A small damping device place.

Advantage of the present invention is: the invention solves current partitioning control valve easily open by mistake open, the opening time is long, repeats the problem opening and closing easy inefficacy seepage.

accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is each flow passage structure schematic diagram of Fig. 1.

Fig. 3 is that Fig. 1 looks up structural representation.

Detailed description of the invention

As Fig. 1, 2, shown in 3, the present invention is by valve body 1, main valve seat 2, main valve plug 3, A spring 4, valve gap 5, emergent spool 6, emergency operation bar 7, armature cover 9, electromagnet armature 10, pilot valve 11 and B spring 12 form, A runner 1-1 is respectively equipped with in valve body 1, B runner 1-2, C runner 1-3 and first export mouth 1-32, C runner 1-3 is provided with A small damping device 1-31, main valve seat 2 is arranged on the water inlet of valve body 1, main valve seat 2 is respectively equipped with D runner 2-1 and E runner 2-2, A runner 1-1 and C runner 1-3 communicates with the water inlet of valve body 1 respectively by D runner 2-1 and E runner 2-2, B runner 1-2 communicates with the first export mouth 1-32 on valve body 1, valve gap 5 is arranged on valve body 1, main valve plug 3 is arranged on the delivery port 1-33 place of valve body 1, valve gap 5 and main valve plug 3 are respectively equipped with spring fitting groove, A spring 4 two ends are connected with main valve plug 3 with valve gap 5 respectively, and lay respectively in the spring fitting groove of valve gap 5 and main valve plug 3, main valve plug 3 is provided with delivery port, the delivery port of main valve plug 3 communicates with the delivery port 1-33 of valve body 1, the water outlet of main valve plug 3 is provided with B small damping device 3-1, valve gap 5 is respectively equipped with F runner 5-1, G runner 5-2 and delivery port, F runner 5-1 two ends communicate with the delivery port of the B runner 1-2 on valve body 1 and main valve plug 3 respectively, G runner 5-2 two ends communicate with the A runner 1-1 of valve body 1 and the delivery port of valve gap 5 respectively, emergent spool 6 is arranged on the water outlet of valve body 1, emergency operation bar 7 is arranged on emergent spool 6 one end, and locked by locking nut, armature cover 9 is sleeved on electromagnet armature 10, and be positioned at the guide exit of valve body 1, electromagnet armature 10 is provided with B spring 12 mounting groove, B spring 12 two ends are overlapped 9 with armature respectively and are connected with electromagnet armature 10, and one end is positioned at the mounting groove of electromagnet armature 10, pilot valve 11 is arranged on electromagnet armature 10 one end, and be positioned at A small damping device 1-31 place.

Operation principle: because operating pressure is higher, flow is larger, therefore the normally closed design of pilot-operated type is adopted, under closure state, press water is entered the cavity of resorption 14 and epicoele 13 (see Fig. 2) that are full of main valve plug 3 by water inlet, due to epicoele 13 active area, comparatively cavity of resorption 14 is large, and under hydraulic pressure effect, main valve plug 3 is in sealing state; When electromagnet obtains electric, drive in electromagnet armature 10 and pilot valve 11 and move, pilot valve is opened, and epicoele 13 pressure reduces rapidly, under the effect of cavity of resorption 14 hydraulic pressure, main valve plug 3 moves, and main valve is opened; After main valve plug 3 is opened, epicoele 13 pressure of main valve plug 3 equals the delivery port 1-33 pressure of valve body 1, when by valve port certain flow, and now main valve plug 3 travelling backwards, meet following two conditions is reach stable state simultaneously:

Working method: during steady operation, a small amount of water under high pressure is by A small damping device 1-31, then outlet is flowed to by pilot valve 11, large water gaging flows to outlet by the B small damping device 3-1 place at main valve plug 3 valve port place, and B small damping device 3-1 Main Function is to form pressure reduction in upper and lower two chambeies of main valve plug 3; When electromagnet power-off, electromagnet armature 10 and pilot valve 11 reset under the effect of B spring 12, pilot valve 11 is positioned at and moves to A small damping device 1-31 one end, after closing, in pilot valve 11, water is static, pressure raises as inlet pressure, under A spring 4 acts on, main valve plug 3 resets, and the delivery port 1-33 of valve body 1 closes.

Open emergency operation valve by emergency operation swing arm under electromagnet failure conditions, substitute pilot valve work.

Claims (1)

1. high-pressure fine water mist fire-extinguishing system electromagnetism partitioning control valve, it is by valve body (1), main valve seat (2), main valve plug (3), A spring (4), valve gap (5), emergent spool (6), emergency operation bar (7), armature cover (9), electromagnet armature (10), pilot valve (11) and B spring (12) composition, main valve seat (2) is arranged on the water inlet of valve body (1), valve gap (5) is arranged on valve body (1), main valve plug (3) is arranged on delivery port (1-33) place of valve body (1), valve gap (5) and main valve plug (3) are respectively equipped with spring fitting groove, A spring (4) two ends are connected with main valve plug (3) with valve gap (5) respectively, and lay respectively in the spring fitting groove of valve gap (5) and main valve plug (3), emergent spool (6) is arranged on the water outlet of valve body (1), emergency operation bar (7) is arranged on emergent spool (6) one end, and locked by locking nut, armature cover (9) is sleeved on electromagnet armature (10), and be positioned at the guide exit of valve body (1), electromagnet armature (10) is provided with B spring (12) mounting groove, b spring (12) two ends are connected with electromagnet armature (10) with armature cover (9) respectively,and one end is positioned at the mounting groove of electromagnet armature (10), pilot valve (11) is arranged on electromagnet armature (10) one end, it is characterized in that being respectively equipped with A runner (1-1) in valve body (1), B runner (1-2), C runner (1-3) and first export mouth (1-32), C runner (1-3) is provided with A small damping device (1-31), main valve seat (2) is respectively equipped with D runner (2-1) and E runner (2-2), A runner (1-1) and C runner (1-3) communicate with the water inlet of valve body (1) respectively by D runner (2-1) and E runner (2-2), B runner (1-2) communicates with the first export mouth (1-32) on valve body (1), main valve plug (3) is provided with delivery port, the delivery port of main valve plug (3) communicates with the delivery port (1-33) of valve body (1), the water outlet of main valve plug (3) is provided with B small damping device (3-1), valve gap (5) is respectively equipped with F runner (5-1), G runner (5-2) and delivery port, F runner (5-1) two ends communicate with the delivery port of the B runner (1-2) on valve body (1) and main valve plug (3) respectively, G runner (5-2) two ends communicate with the A runner (1-1) of valve body (1) and the delivery port of valve gap (5) respectively, pilot valve (11) is positioned at A small damping device (1-31) place.