CN210859992U

CN210859992U - Differential pressure type valve for battery compartment fire extinguishing device

Info

Publication number: CN210859992U
Application number: CN201921368757.0U
Authority: CN
Inventors: 周博; 李从健; 周玉芬; 窦跃华
Original assignee: Jinan Noah Emergency Equipment Co ltd
Current assignee: Jinan Noah Emergency Equipment Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-06-26
Anticipated expiration: 2029-08-21

Abstract

The utility model provides a differential pressure formula battery compartment is valve for extinguishing device relates to the valve field. This differential pressure formula valve for battery compartment extinguishing device, including valve body and coil, coil fixed connection is in the inside of valve body, first air inlet and second air inlet have been seted up on the lateral wall of valve body, first air inlet and second air inlet communicate respectively has breather pipe and gas outlet, the breather pipe sets up the one end intercommunication that keeps away from first air inlet in the inside of valve body and breather pipe has the pressure chamber, sliding connection has limiting plate and case on the inner wall of pressure chamber, the welding has the main shaft on the lateral wall of limiting plate, the inside water conservancy diversion mechanism that is provided with of main shaft between limiting plate and the first baffle and between second baffle and the third baffle. According to the valve for the differential pressure type battery compartment fire extinguishing device, the flow guide mechanism arranged in the main shaft avoids the phenomenon that gas molecules collide with the main shaft when flowing to form local differential pressure, so that a high-pressure area flows to a low-pressure area, and the air flow speed is reduced.

Description

Differential pressure type valve for battery compartment fire extinguishing device

Technical Field

The utility model relates to the technical field of valves, specifically be a differential pressure formula battery compartment is valve for extinguishing device.

Background

The differential pressure type electromagnetic valve is characterized in that a pilot valve is opened firstly under the action of electromagnetic force, so that gas enters a valve core air chamber of the electromagnetic valve, the electromagnetic valve limiting device is pushed by utilizing air pressure, and the on-off of gas paths is realized.

When the differential pressure type electromagnetic valve is applied to a valve for a battery compartment fire extinguishing device, after the gas pushes the limiting device, dry powder is easily adsorbed on the pushing shaft when passing through the electromagnetic valve under the action of pressure, and when gas molecules flow, a local pressure difference is formed due to the existence of the pushing shaft, so that a high-pressure area flows to a low-pressure area, the air flow speed is reduced, heat is generated, and therefore certain defects exist in the prior art.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the not enough of prior art, the utility model provides a differential pressure formula battery compartment is valve for extinguishing device to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a valve for a differential pressure type battery compartment fire extinguishing device comprises a valve body and a coil, wherein the coil is fixedly connected inside the valve body, a first air inlet and a second air inlet are formed in the side wall of the valve body, the first air inlet and the second air inlet are respectively communicated with a vent pipe and an air outlet, the vent pipe is arranged inside the valve body, one end, far away from the first air inlet, of the vent pipe is communicated with a pressure chamber, the inner wall of the pressure chamber is connected with a limiting plate and a valve core in a sliding mode, a second elastic device is arranged between the side wall of the valve core and the inner wall of the valve body, a main shaft is welded on the side wall of the limiting plate, a first baffle plate and a second baffle plate are fixedly connected on the outer surface of the main shaft, a third baffle plate is welded on one end, far away from the first baffle plate, of the main shaft, and the first, and a flow guide mechanism is arranged in the main shaft between the limiting plate and the first baffle plate and between the second baffle plate and the third baffle plate, and a first elastic device is arranged between the side wall of the third baffle plate and the inner wall of the valve body.

Preferably, the flow guide device mainly comprises a fixing ring, a flow guide rotary vane is welded on the outer surface of the fixing ring, an outer frame is fixedly connected to one end, far away from the fixing ring, of the flow guide rotary vane, a sliding block is arranged on the outer surface of the outer frame, and a sliding groove matched with the sliding block is formed in the main shaft.

Preferably, the first elastic device comprises a first spring and a first telescopic rod, the second elastic device comprises a second spring and a second telescopic rod, and the first spring and the second spring are respectively sleeved on the outer surfaces of the first telescopic rod and the second telescopic rod.

Preferably, a sealing gasket is fixedly connected to the side wall of the valve core, and the area of the sealing gasket is larger than the sectional area of the vent pipe.

Preferably, a filter screen is arranged on the inner wall of the first air inlet.

Preferably, the outer surfaces of the main shaft and the guide vane are both subjected to smoothing treatment.

Preferably, the side walls of the two sides of the first baffle close to the second air inlet and the second air outlet are provided with sealing rings.

The utility model provides a differential pressure formula battery compartment is valve for extinguishing device, its beneficial effect who possesses as follows:

1. according to the valve for the differential pressure type battery compartment fire extinguishing device, the diversion rotary vane is driven to rotate when gas molecules contact the diversion rotary vane through the diversion mechanism arranged in the main shaft, so that the phenomenon that the gas molecules collide with the main shaft when flowing to form local differential pressure, a high-pressure area flows to a low-pressure area to cause the air flow speed to be reduced is avoided, dry powder is prevented from being adsorbed on the main shaft to cause the air flow speed to be reduced, and the device is prevented from being damaged.

2. This differential pressure formula valve for battery compartment extinguishing device, through circular telegram the coil, the electromagnetic force drives the case removal, thereby gaseous from first air inlet and breather pipe entering pressure chamber, and then promote the limiting plate and remove, then drive first baffle through the main shaft and slide, thereby the second air inlet is linked together with the gas outlet, the effect of opening the valve has been reached, thereby the pipeline at valve both ends is communicate, during the outage, the case is replied to initial position under the effect of second resilient means, the main shaft drives first baffle and replies to initial position under the effect of first resilient means, thereby self-closing is convenient for next opening of solenoid valve.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention in an unpowered state;

FIG. 2 is a cross-sectional view of the structure of the present invention in a power-on state;

FIG. 3 is a front view of the structure of the flow guiding mechanism of the present invention;

fig. 4 is a structural diagram of the flow guiding rotary vane of the present invention.

In the figure: 1 valve body, 101 first air inlet, 102 second air inlet, 103 breather pipe, 104 air outlet, 105 pressure chamber, 106 limiting plate, 107 first baffle, 108 main shaft, 109 second baffle, 110 third baffle, 111 first spring, 112 first telescopic rod, 2 coil, 3 valve core, 301 second telescopic rod, 302 second spring, 303 sealing gasket, 4 fixing ring, 401 diversion vane, 402 outer frame, 403 chute and 5 filter screen.

Detailed Description

The embodiment of the utility model provides a valve for differential pressure type battery compartment fire extinguishing device, as shown in fig. 1-4, including valve body 1 and coil 2, coil 2 is fixed connection in the inside of valve body 1, seted up first air inlet 101 and second air inlet 102 on the lateral wall of valve body 1, first air inlet 101 and second air inlet 102 communicate respectively has breather pipe 103 and gas outlet 104, breather pipe 103 sets up in the inside of valve body 1 and breather pipe 103 keeps away from the one end of first air inlet 101 and communicates has pressure chamber 105, sliding connection has limiting plate 106 and case 3 on the inner wall of pressure chamber 105, be provided with the second resilient means between the lateral wall of case 3 and the inner wall of valve body 1, main shaft 108 has been welded on the lateral wall of limiting plate 106, fixedly connected with first baffle 107 and second baffle 109 on the surface of main shaft 108, the one end welding that first baffle 107 was kept away from to main shaft 108 has third baffle 110, the first baffle plate 107, the second baffle plate 109 and the third baffle plate 110 are all connected inside the valve body 1 in a sliding manner, a flow guide mechanism is arranged inside the main shaft 108 between the limiting plate 106 and the first baffle plate 107 and between the second baffle plate 109 and the third baffle plate 110, and a first elastic device is arranged between the side wall of the third baffle plate 110 and the inner wall of the valve body 1;

the flow guiding device mainly comprises a fixed ring 4, a flow guiding rotary vane 401 is welded on the outer surface of the fixed ring 4, an outer frame 402 is fixedly connected at one end of the flow guiding rotary vane 401 far away from the fixed ring 4, a slide block is arranged on the outer surface of the outer frame 402, and the inside of the main shaft 108 is provided with a chute 403 matched with the slide block, the first elastic device comprises a first spring 111 and a first telescopic rod 112, the second elastic device comprises a second spring 301 and a second telescopic rod 302, the first spring 111 and the second spring 301 are respectively sleeved on the outer surfaces of the first telescopic rod 112 and the second telescopic rod 302, the side wall of the valve core 3 is fixedly connected with a sealing gasket 303, the area of the sealing gasket 303 is larger than the sectional area of the vent pipe 103, the inner wall of the first air inlet 101 is provided with the filter screen 5, the outer surfaces of the main shaft 108 and the diversion rotary vane 401 are both subjected to smoothing treatment, and the side walls of the two sides of the first baffle 107 close to the second air inlet 102 and the air outlet 104 are both provided with sealing rings.

The working principle is as follows: when gas molecules contact the diversion rotary vane 401, the diversion rotary vane 401 is driven to rotate, so as to drive the outer frame 402 connected with the diversion rotary vane to rotate inside the main shaft 108, further accelerate the gas flowing speed, avoid colliding the main shaft 108 when the gas molecules flow to form local pressure difference, enable the high-pressure area to flow to the low-pressure area, and further cause the gas flowing speed to be reduced, and avoid dry powder to be adsorbed on the main shaft 108, and further avoid the device from being damaged, in a power-off state, the first baffle plate 107 plays a role of blocking the second gas inlet 102, through electrifying the coil 2, the electromagnetic force drives the valve core 3 to move, thereby compressing the second spring 302 and the second telescopic rod 301, then the gas enters the pressure bin 105 from the first gas inlet 101 and the vent pipe 103, further pushes the limiting plate 106 to move, the limiting plate 106 drives the first baffle plate 107 to slide through the main shaft 108, and further the second gas inlet 102 is communicated with the gas outlet 104, the effect of opening the valve is achieved, thereby communicating the pipelines at the two ends of the valve, and the main shaft 108 drives the third baffle 110 to compress the first spring 111 and the first telescopic rod 112, during power failure, the valve core 3 returns to the initial position under the effect of the second elastic device, the third baffle 110 drives the main shaft 108 to slide under the effect of the first elastic device, thereby driving the first baffle 107, the second baffle 109 and the limiting plate 106 to return to the initial position, achieving the effect of automatic closing, thereby facilitating the opening of the electromagnetic valve next time.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a differential pressure formula battery compartment is valve for extinguishing device, includes valve body (1) and coil (2), its characterized in that: the coil (2) is fixedly connected inside the valve body (1), a first air inlet (101) and a second air inlet (102) are formed in the side wall of the valve body (1), the first air inlet (101) and the second air inlet (102) are respectively communicated with a vent pipe (103) and an air outlet (104), the vent pipe (103) is arranged inside the valve body (1), one end, far away from the first air inlet (101), of the vent pipe (103) is communicated with a pressure chamber (105), the inner wall of the pressure chamber (105) is connected with a limiting plate (106) and a valve core (3) in a sliding mode, a second elastic device is arranged between the side wall of the valve core (3) and the inner wall of the valve body (1), a main shaft (108) is welded on the side wall of the limiting plate (106), a first baffle plate (107) and a second baffle plate (109) are fixedly connected on the outer surface of the main shaft (108), and a third baffle plate (110) is welded at one end, far away from the first baffle plate (, and the first baffle (107), the second baffle (109) and the third baffle (110) are all connected in the valve body (1) in a sliding manner, a flow guide device is arranged inside the main shaft (108) between the limiting plate (106) and the first baffle (107) and between the second baffle (109) and the third baffle (110), and a first elastic device is arranged between the side wall of the third baffle (110) and the inner wall of the valve body (1).

2. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 1, characterized in that: the flow guide device mainly comprises a fixing ring (4), a flow guide rotary vane (401) is welded on the outer surface of the fixing ring (4), one end of the flow guide rotary vane (401) far away from the fixing ring (4) is fixedly connected with an outer frame (402), a sliding block is arranged on the outer surface of the outer frame (402), and a sliding groove (403) matched with the sliding block is formed in the main shaft (108).

3. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 1, characterized in that: the first elastic device comprises a first spring (111) and a first telescopic rod (112), the second elastic device comprises a second spring (301) and a second telescopic rod (302), and the first spring (111) and the second spring (301) are respectively sleeved on the outer surfaces of the first telescopic rod (112) and the second telescopic rod (302).

4. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 1, characterized in that: the side wall of the valve core (3) is fixedly connected with a sealing gasket (303), and the area of the sealing gasket (303) is larger than the sectional area of the vent pipe (103).

5. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 1, characterized in that: and a filter screen (5) is arranged on the inner wall of the first air inlet (101).

6. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 2, characterized in that: the outer surfaces of the main shaft (108) and the guide vane (401) are both subjected to smoothing treatment.

7. The valve for the differential pressure type battery compartment fire extinguishing apparatus according to claim 1, characterized in that: and sealing rings are arranged on the side walls of the two sides of the first baffle (107) close to the second air inlet (102) and the air outlet (104).