CN2423323Y

CN2423323Y - Antifreezing device

Info

Publication number: CN2423323Y
Application number: CN 00236578
Authority: CN
Inventors: 郭张
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-01
Filing date: 2000-06-01
Publication date: 2001-03-14
Anticipated expiration: 2010-06-01

Abstract

The utility model relates to an antifreezing device used for a water supply system or a fire-fighting system. An operating mechanism of the utility model is arranged in a circular protecting cover on the ground. A main valve and an automatic emptying valve are arranged in an underground protecting cover to be connected with an underground pipe network. When the main valve is opened, pressure water can be supplied for ground facilities of a system. Simultaneously, under the function of the pressure water, the automatic emptying valve is closed. The main valve is closed, the water supply for the ground facilities is stopped, pressure is released, the automatic emptying valve is opened, residual water in the ground facilities flows out of water drainage holes of an upper cover of the automatic emptying valve to penetrate into underground, water in the ground facilities (a water-feeder, a fire water monitor, a post fire hydrant, etc.) is discharged, and the ground facilities can not be frozen.

Description

Defroster

The utility model relates to the defroster of the ground installation preventing freeze in winter of a kind of defroster, particularly water system and fire fighting system.

At present, the ground installation of water supply and fire fighting system.As water supplying apparatus, the preventing freeze in winter of fire water monitor post fire hydrant etc. all is that the water level in the equipment is dropped to below the frost line, and making does not have water in above pipeline of frost line and the equipment and reach antifreeze purpose.For this reason, generally adopt and before these equipment, establish a valve pit, before winter is freezing, under the staff in well, close main valve, open atmospheric valve water is drained, and need supply water or fire-fighting again, the staff operates in well down again, close atmospheric valve, open main valve, go into the well controlled valve afterwards again.Though can reach the cryoprotective purpose of emptying like this, in the big place of frost depth, valve pit is very dark, and very inconvenience if the fire-fighting well then can be incured loss through delay attack time slowly because of holding valve speed, causes big loss.Therefore, for the ground installation that needs at any time to supply water, need be a kind of easy to operate, the device of speed fast (preferably operation on the ground) is installed in the system, and can play reliable antifreeze effect.At any time supply water to improve and to guarantee, improve blow-off velocity and ability.

The purpose of this utility model is exactly the deficiency at means to prevent freezings such as valve pits, propose a kind ofly to be used to supply water or the winterized equipment of fire fighting system, it is directly imbedded and undergroundly connects with the water system pipe network, operating mechanism on the ground, change downhole operations and be operation on the ground, close main valve after, the water emptying automatically in the facility (water supplying apparatus, fire water monitor, post fire hydrant etc.) on the ground, thereby reach easy to operate, antifreeze reliable purpose.

Defroster described in the utility model comprises: main valve 1., automatically atmospheric valve 2., 3. atmospheric valve is taken over, drive link 4., operating mechanism 5., the water inlet adapter 6., 7. water outlet takes over, lower shield 8., upper shield is 9..It is 6. 7. middle with the water outlet adapter to it is characterized in that main valve is installed in into water adapter, and by Bolt Connection, it is the control valve that network of underground supplies water to the ground facility.Water inlet is taken over the other end by flange, and bolt connects with network of underground, and water outlet is taken over by flange, bolt and connected with the ground facility, and water outlet is taken on the side perforate, and welds the atmospheric valve adapter, with automatic atmospheric valve through thread connection.Main valve and drive link are by key connecting, and drive link and operating mechanism also are by key connecting.Main valve, atmospheric valve adapter, drive link, automatic atmospheric valve all in lower shield, are imbedded underground.Lower shield is made by the steel sheet welding of 2.0 millimeters thick, be square structure, the lower end bilateral symmetry has ∩ shape hole, makes it can ride over into water adapter and the last and firm welding of water outlet adapter, lower shield upper end and the welding of upper shield base plate, on the upper shield inner bottom plating support is arranged, on support, upper shield is rolled by the steel sheet of 2.0 millimeters thick and forms garden shape operating mechanism by screw, on top cover is arranged, under base plate is arranged, base plate is made by the steel sheet of 3.0 millimeters thick, welds with upper shield.Top cover is rolled into by the steel sheet of 2.0 millimeters thick, is connected with upper shield by hinge, the garden shape projection that has punching press to come out on the top cover.Be welded with the surrounding edge of 20 mm wides under the top cover, top cover is buckled on the upper shield, make rainwater can not be deposited in above and enter upper shield.Half of upper shield is exposed on the ground, is convenient to operation.The upper and lower guard shield of whole defroster inboard, the lower shield outside, operating mechanism, drive link and Inlet and outlet water are taken over, all adopt the epoxide coal bituminous preservative treatment of carrying out, atmospheric valve adapter and automatic atmospheric valve all adopt stainless steel, and the upper shield outside and the top cover outside are coated with rustproof paint and enamel paint processing.

The automatic atmospheric valve of defroster described in the utility model by valve body 1. valve plate 2. loam cake 3. balancing weight 4. seal gasket 5. form, it is characterized in that 2. valve plate keeps to the side is uniform-distribution with 12 apertures, it is thread connection that the loam cake and the valve body of drain hole are arranged, and valve plate can move up and down in valve body and between the loam cake.Plumbous system balancing weight is pressed on the nose bar of valve plate.

The working condition of defroster described in the utility model is: open upper shield top cover 9., 1. 4. manipulation operations mechanism handwheel 5. open main valve by drive link.The press water of network of underground just by water inlet take over 6., main valve 1., 7. water outlet takes over earthward that facility supplies water, simultaneously, the perforate that the press water of network of underground is also taken over by water outlet enters that 3. atmospheric valve is taken over and atmospheric valve is 2. automatically.Automatically the valve plate of atmospheric valve is closed automatically along with the rising of pressure.Make when facility provides press water earthward, defroster is water-tight, when manipulation operations mechanism handwheel closes to main valve, water outlet adapter and ground installation behind the main valve lose hydraulic pressure, automatically atmospheric valve is under the action of gravity of balancing weight, valve plate is opened, water in the ground installation is just flowed out by the loam cake drain hole, permeates the ground.Reach ground installation emptying and antifreeze purpose.

Defroster described in the utility model is to operate on the ground, so very convenient.Can guarantee to supply with at any time in the winter time the ground installation press water, satisfy their job requirement, can reach antifreeze purpose with its water emptying when they quit work again.Because easy to operate, to fire water monitor, post fire hydrant etc. can also improve their blow-off velocity and ability, it can substitute valve pit simultaneously, thereby has saved extensive fund.When increasing or reducing drive link simultaneously, can satisfy the requirement that difference is buried the water supply network of the ground degree of depth 4. with 8. length dimension of lower shield.

Fig. 1 is used for the preceding defroster of fire fighting system water cannon.

Fig. 2 is used for the preceding defroster of water supplying apparatus.

Fig. 3 is independently automatic atmospheric valve structure chart.

(1) is main valve among Fig. 1 Fig. 2, and (2) are automatic atmospheric valves, and (3) are that atmospheric valve is taken over, and (4) are drive links, and (5) are operating mechanisms, and (6) are that into water is taken over, and (7) are that water outlet is taken over, and (8) are lower shields, and (9) are upper shields.

(1) is valve body among Fig. 3, and (2) are valve plates, and (3) are loam cakes, and (4) are balancing weights, and (5) are seal gaskets.

Embodiment 1:

As shown in Figure 1: defroster independently, main valve (1) is taken over (6) with the water inlet that two ends are welded with flange, water outlet is taken over (7) by Bolt Connection, atmospheric valve is taken over the perforate welding of (3) one ends and water outlet adapter (7), the other end adopts thread connection with automatic atmospheric valve (2), lower shield (8) is that ∩ shape hole is opened in square welded construction, both sides, rides over water inlet pipe (6) and outlet pipe (7) and goes up and firm welding.The endoporus of the valve rod of main valve (1) and drive link (4) one ends is by key connecting, the drive link other end stretches in the pilot hole of operating mechanism (5), by key connecting, support on operating mechanism (5) and garden shape upper shield (9) base plate is by screw attachment, lower shield (8) upper end is connected with upper shield by the strand key with upper shield (9) base plate welding, top cover; Water inlet is taken over (6) and is communicated with network of underground, and water outlet is taken over (7) and connected with the ground fire water monitor by taking over.Device has 400 * 600 * 300 millimeters stone pit down, and half of device upper shield (9) basseted.

Automatic atmospheric valve is valve body (1) as shown in Figure 3, and valve gap (3) is a workpiece, and by thread connection, valve plate (2) can upper and lowerly move in valve body, and balancing weight (4) lower end is porose, and the last nose bar of valve plate can stretch in the hole.Valve body lower end and atmospheric valve are taken over by thread connection.

Embodiment 2:

Be a kind of defroster that is used in before the water supplying apparatus as shown in Figure 2, its internal construction with

Embodiment 1 is identical.

Claims

1. one kind is used to supply water and the defroster of fire fighting system, and it comprises: main valve 1. automatically atmospheric valve 2. atmospheric valve take over 3. drive link 4. operating mechanism 5. intake and take over 6. water outlet and take over 7. lower shield 8. upper shield is 9..It is characterized in that: 6. water inlet takes over, the 7. equal welding flange in two ends is taken in water outlet, and main valve ① You Mu bolt is installed in the middle of the two pipe connecting flange dishes.Main valve 1. with drive link 4. by key connecting, passing the extension bar other end and operating mechanism 5. also is by key connecting, 7. water outlet is taken over a STH and is welded atmospheric valve and take over 3., atmospheric valve is taken over and 2. automatic atmospheric valve is thread connection, lower shield 8., ∩ shape hole is opened in the both sides, lower end, rides over into water adapter and 6. 7. goes up and firm welding with the water outlet adapter.Main valve 1., automatically atmospheric valve 2., 3. atmospheric valve is taken over, drive link 4., all in lower shield 8., operating mechanism 5. in upper shield, by screw on the support on the upper shield base plate.The top cover of upper shield is connected by hinge with cover body.

2. 9. device according to claim 1 is characterized in that upper shield, and 8. lower shield forms by the steel sheet welding or by iron casting, and upper shield is a garden shape, and lower shield is square.

3. according to the described device of claim 1, it is characterized in that its automatic atmospheric valve made by stainless steel or brass, balancing weight is made by plumbous matter, has when hydraulic pressure reaches 0.03MPa to close the performance of opening when hydraulic pressure is lower than 0.03MPa automatically.