CN200989452Y

CN200989452Y - Block valve used for transformer fire-fighting device high-pressure nitrogen cylinder

Info

Publication number: CN200989452Y
Application number: CN 200620128563
Authority: CN
Inventors: 范会; 周爱纯; 张国贞
Original assignee: Baoding Tianwei Group Co Ltd
Current assignee: Baoding Tianwei Zhuochuang Electric Equipment Technologies Co., Ltd.
Priority date: 2006-12-31
Filing date: 2006-12-31
Publication date: 2007-12-12
Anticipated expiration: 2016-12-31

Abstract

A locking valve of a high pressure nitrogen cylinder of a transformer fire extinguishing appliance pertains to the technology field of valve and solves the quick opening and closing problem of the nitrogen cylinder. The technology scheme is: the utility model contains a plunger valve part and an electrical detonation closed-cycle control part that are positioned in the shell; the plunger valve is composed of a valve body and a valve core; the valve body is provided with an inlet and an outlet; the electrical detonation closed-cycle control part is composed of an electric blasting squib, a lock bar, a lock latch, a compression bar and a spring; one side of the tube wall of the electric blasting squib is fixed in the shell and the blasting fuze is introduced outside the shell; the other side of the electric blasting squib is connected with a piston; a piston rod controls the compression bar by an unlock mechanism; the core rod upper end of the compression bar and the valve core are contacted with each other. The utility model can close the exhaust port of the high pressure nitrogen cylinder reliably and prevents the high pressure nitrogen cylinder from leaking; when accidents take place, the electric blasting squib blasts quickly, opens the plunger valve and makes the high pressure nitrogen enter into the transformer to extinguish fire. The utility model has the advantages of good sealing performance, quick and reliable opening and closing, etc.

Description

A kind of Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle

Technical field

The utility model relates to the valve that a kind of transformer fire-fighting equipment adopts, and belongs to valve technology field.

Background technique

At present, general transformer oil extraction commonly used-nitrogen filling fire extinguishing device nitrogen bottle adopts bottle valve, when normal the use, has high pressure nitrogen between bottle valve and the reduction valve, and pressurized gas are difficult for accomplishing positive confinement, and it has micro-leakage inevitably.These leakages or switch in the air, influence fire extinguishing effect; Or leakage enters in the oil tank of transformer, causes the misoperation of transformer, causes the tripping operation accident.Therefore, how to solve the leakage problem of nitrogen bottle at closed process mesohigh nitrogen, can open simultaneously nitrogen bottle again when having an accident rapidly has significance for the safe operation of transformer.

Summary of the invention

The utility model is used to provide a kind of nitrogen bottle that can make under normal circumstances to keep good air-tight state, and can reliably open, be exclusively used in the Locking type valve of transformer fire-fighting equipment high-pressure nitrogen bottle when having an accident rapidly.

The technological scheme that solves the problems of the technologies described above is:

A kind of Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle, it comprises plunger valve part and the electric detonation latch portion that is arranged in the housing, wherein, plunger valve is made of valve body, spool, is provided with suction port and air outlet on valve body; The electric detonation latch portion is made up of electric detonator, locking bar, snap close, depression bar and spring, wherein, one end tube wall of electric detonator is fixed in the housing, its detonation fuse causes outside the housing, the other end of electric detonator is communicated with piston, piston rod is by a release mechanism control depression bar, and the core bar upper end of depression bar and spool presses together.

The above-mentioned Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle, described release mechanism is made up of snap close and locking bar, and wherein, snap close one end is articulated on the housing, the other end and the interlock of locking bar overlap joint, snap close is also hinged with piston rod; Locking bar links depression bar, and its end is articulated on the housing, is provided with a spring on locking bar.

The above-mentioned Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle links together by thread bush between described locking bar and the depression bar, and for being threaded, spring is installed in the below of locking bar between thread bush and the depression bar.

The above-mentioned Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle, the hinging hole between described snap close and the piston rod are slotted hole, and be hinged by pin between the two.

The utility model is when proper functioning, and plunger valve can be reliably airtight with the relief opening of high-pressure nitrogen bottle, prevents the high pressure nitrogen seepage; When the breaking out of fire accident, electric detonator detonates fast, and locking bar breaks away from the constraint of snap close, drives the depression bar motion of plunger valve, opens plunger valve, makes high pressure nitrogen advance people's transformer and implements the fire extinguishing operation.The utlity model has airtight good, the rapidly reliable advantage of unlatching, be applicable to safe operation under the various severe environmental conditions.In addition, it can also manually-operable, and operator can also mention the operation that plunger valve discharges nitrogen by manual turn depression bar, have more increased the flexibility of its use.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present utility model;

Fig. 2 is the view after the release.

Each mark is as follows among the figure: high-pressure nitrogen bottle 1, housing 2, plunger valve 3, depression bar 4, electric detonator 5, locking bar 6, snap close 7, spring 8, depression bar thread bush 9, slotted hole 10, pin 11, piston 12, piston rod 13, notes nitrogen pipeline 14, air outlet 15, suction port 16, spool 17, valve body 18.

Embodiment

As we can see from the figure, the utility model is made up of housing 2, plunger valve 3, depression bar 4, electric detonator 5, locking bar 6, snap close 7, spring 8, and plunger valve 3, depression bar 4, electric detonator 5, locking bar 6, snap close 7, spring 8 all are installed in the housing.

Plunger valve 3 is made of valve body 18, spool 17, is provided with suction port 16 and air outlet 15 on valve body 18.The valve face of plunger valve 3 is with the relief opening sealing of high-pressure nitrogen bottle 1, and the air outlet 15 of plunger valve 3 is connected with the notes nitrogen pipeline 14 of transformer.On the body of rod of the depression bar 4 of plunger valve 3 screw thread is arranged, at locking bar 6 middle parts depression bar thread bush 9 is arranged, the screw thread of its screw thread and depression bar 4 is complementary.When locking bar 6 was static, manually turn depression bar 4 can make the screw thread of depression bar 4 rotate along the depression bar thread bush on the locking bar 69, and the valve face of plunger valve 3 is mentioned, and makes high-pressure nitrogen bottle 1 exhaust.

Electric detonator 5, locking bar 6, snap close 7, depression bar 4 and spring 8 are formed the electric detonation latch portion.One end tube wall of electric detonator 5 is fixed in the housing 2, and its detonation fuse causes outside the housing 2, and the other end of electric detonator 5 is communicated with piston rod 13, and the other end of piston rod 13 connects pin 11, and pin 11 is connected in the snap close 7.The two ends of locking bar 6 and snap close 7 are hinged for turning with the inwall of housing 2 respectively, and the other end overlaps mutually, and snap close 7 and locking bar 6 occupy upper and lower respectively, and spring 8 withstands on the below of locking bar 6.Snap close 7 has slotted hole 10 near an end of locking bar 6, and pin 11 is arranged in the slotted hole 10.

When transformer was in normal state, an end of snap close 7 compressed locking bar 6 downwards, and plunger valve 3 is reliably airtight with the relief opening of high-pressure nitrogen bottle 1, prevents the high pressure nitrogen seepage.During the breaking out of fire accident, electric detonator 5 detonates fast, piston 12 in the electric detonator 5 drives piston rod 13 motions, the pin 11 of piston rod 13 1 ends upwards promotes snap close 7 in the slotted hole 10 of snap close 7, snap close 7 no longer compresses locking bar 6, and locking bar 6 moves up under the effect of spring 8, drives depression bar thread bush 9 simultaneously and depression bar 4 makes progress together, plunger valve 3 is opened, and high pressure nitrogen enters transformer and implements the fire extinguishing operation.

This high-pressure nitrogen bottle Locking type valve has airtight good, the rapidly reliable advantage of unlatching, be applicable to trouble free service under the various severe environmental conditions, operator can also mention the operation that plunger valve discharges nitrogen by manual turn depression bar, have more increased safety assurance.

Claims

1. Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle, it is characterized in that: it comprises plunger valve part and the electric detonation latch portion that is arranged in the housing [2], wherein, plunger valve [3] is made of valve body [18], spool [17], is provided with suction port [16] and air outlet [15] on valve body [18]; The electric detonation latch portion is made up of electric detonator [5], locking bar [6], snap close [7], depression bar [4] and spring [8], wherein, one end tube wall of electric detonator [5] is fixed in the housing [2], its detonation fuse causes outside the housing, the other end of electric detonator [5] is communicated with piston [12], piston rod [13] is by a release mechanism control depression bar [4], and depression bar [4] presses together with the core bar upper end of spool [17].

2. the Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle according to claim 1, it is characterized in that: described release mechanism is made up of snap close [7] and locking bar [6], wherein, snap close [7] one ends are articulated on [2] housing, the interlock of the other end and locking bar [6] overlap joint, snap close [7] is also hinged with piston rod [13]; Locking bar [6] links depression bar [4], and its end is articulated on the housing [2], is provided with a spring [8] on locking bar [6].

3. the Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle according to claim 2, it is characterized in that: link together by thread bush [9] between described locking bar [6] and the depression bar [4], for being threaded, spring [8] is installed in the below of locking bar [6] between thread bush [9] and the depression bar [4].

4. the Locking type valve that is used for transformer fire-fighting equipment high-pressure nitrogen bottle according to claim 3 is characterized in that: the hinging hole between described snap close [7] and the piston rod is slotted hole [10], and is hinged by pin [11] between the two.