CN208893519U - Self-extinguishing water injection system branch pipe hour shut-off valve - Google Patents

Abstract

The utility model belongs to the facility applied in structural fire protection self-extinguishing water injection system, specifically a kind of self-extinguishing water injection system branch pipe hour shut-off valve comprising automatic spray main line, automatic spray branch pipe and branch pipe spray head；It further include the lining plastic butterfly valve equipped with butterfly valve open and close handle, fire bucket；The housing upper face of lining plastic butterfly valve is equipped with connecting rod, connecting rod is connected with butterfly valve open and close handle by limit spring, butterfly valve open and close handle is equipped with handle bar, the lower end of handle bar is equipped with hook, hook connection fire bucket, automatic spray branch pipe is connected with hose, and the other end of hose is connected to fire bucket, and normally opened control valve for small flows is equipped on hose.It can be during shutdown occurs for fire 1~6 hour, after the mobile diffusion of fire behavior, make the extinction by automatic sprinkling system being arranged originally, automatic-closing valve, to reduce the water of inefficiency loss when fire-fighting, it is to the perfect of extinction by automatic sprinkling systemic effect area endogenous fire post disaster phase developing direction.

Description

Self-extinguishing water injection system branch pipe hour shut-off valve

Technical field

The utility model belongs to the facility applied in structural fire protection self-extinguishing water injection system, and in particular to one kind is gone out automatically Fire-fighting water system branch pipe hour shut-off valve.

Background technique

At present in scene of fire, specification " Code for design of automatic fire sprinkler systems " especially is pressed in architecture indoor The extinction by automatic sprinkling system of GB50084 configuration has certain control and puts out the ability of initial fire disaster, major advantage are as follows: It is swift in response, generally when fire scene temperature is higher than 35 degree of environment temperature or so, is arranged in from the temperature sensing device on spray head and melts After changing or bursting, water outlet, automatic spray are reaching wet alarm valve to system immediately under the action of high-order fire water box hydrostatic pressing After starting flow, fire-fighting main pump starts automatically under the action of system pressure switch and flow switch, the general work duration 1 ~1.5 hours.The flow of fire pump is in the active area by default while the accumulation of the spray head water of starting calculates, Active area is generally at 160~300 square metres, based on each spray head water yield 60L/min (K80 type), general automatic spray system For the designed outlet water of system in 30L/s or so, the hypothesis of system design discharge is only suitable for ignition point or an active area at one Interior use.The spray head quantity arranged on system pipeline list branch pipe is generally at 8 hereinafter, extensive using object range, comprising very much The buildings such as Public residence office use, are the automatic fire extinguishing systems for comparing approval in the world.Have many early stage fire extinguishings it is practical at Function case column.But there is also following main problems:

1, in the arrangement of automatic sprinkler system, ordinary circumstance is to build each position all to arrange, system bulky complex, Each fire compartment area can achieve 2000m²Or even 4000 m²More than, but active area division is smaller by (100~300 m²), the water flow indicator being arranged in each fire compartment can reflect the scene of fire in each area to fire protection control center Streamflow regime, but the case where cannot reflect water flow in active area or single branch pipe network, since the uncertainty of position occurs for fire, Fire in active area should be analyzed and be controlled, this content is not directed in design specification and measure, therefore spray automatically The theoretical basis of water fire-extinguishing system is imperfect, should improve the fire disaster analyzing in active area and control section.

2, due in automatic sprinkler system branch pipe node it is more, sprinkler piping system installation be mostly artificial situation, peace Packing quality is irregular, accidentally sprays phenomenon and inevitably occurs, and initiation reimbursement of damages is big, and maintenance difficulty is big, also reequips to the finishing in later period Etc. bringing difficulty.

3, active area is only suitable in water force, is not suitable for the directive significance in practical scene of fire.Scene of fire The burnt area of ignition point is generally less than active area, but due to the mobile diffusion of fire, it is likely that occurs more than active area Fire occur in a fire compartment or even whole buildings, but open spray head or branch pipe early period should be closed accordingly, but at present Without corresponding technical measures in way.

4, system cannot cope with the development of a fire, can not respond the situation of secondary or more fire.

Automatic sprinkler system has convenience and reliability in the use of mini-system, is obvious to all, but right It in large-scale use due to theoretic inaccurate, refers mainly in active area that intensity of a fire diffusion gear shaper without theoretical is supported, causes in reality Scene of fire is insufficient according to the Development Technology of the fire means that follow up, be unable to control have turned on spray head it is invalid spray water to be the largest be System disadvantage.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of structures simply, is equipped with low in cost, fire continues The automatic sprinkler fire-extinguishing system branch pipe hour shut-off valve sprayed water in vain is avoided in period；The valve can fire continue 1~1.5 hour, Flowing water Valve is even automatically closed in 6 hours, eliminates invalid the phenomenon that spraying water, checks and reset manually after fire.

In order to solve the technical problem, the technical solution that the utility model is taken is as follows: a kind of self-extinguishing water spray system System branch pipe hour shut-off valve, including automatic spray main line, automatic spray branch pipe and branch pipe spray head；It is characterized by also including Lining plastic butterfly valve equipped with butterfly valve open and close handle, fire bucket；The housing upper face of lining plastic butterfly valve be equipped with connecting rod, connecting rod with Butterfly valve open and close handle is connected by limit spring, and butterfly valve open and close handle is equipped with handle bar, handle bar Lower end is equipped with hook, hook connection fire bucket, and automatic spray branch pipe is connected with hose, and the other end and fire bucket of hose connect It is logical, normally opened control valve for small flows is installed on hose.

The utility model discharges water to fire bucket using the continuously small flow of spray head water spray period inner flexible tube trickling, So that fire bucket gravity is gradually continuously increased downward pulling force, butterfly valve open and close handle is pulled to move downward, plays closing lining Mould the effect of butterfly valve.Normally opened control valve for small flows can control the drain discharge of hose, to play in regular hour internal control Make the water of outflow.When limit spring can prevent the utility model i.e. hour shut-off valve from working, lining plastic butterfly valve quickly closes too early It closes.Butterfly valve open and close handle resets after can playing the role of torque transmitting and fire.

The design concept of the utility model is from the perfect and scene of fire true of automatic sprinkler system principle Real demand.Hour automatic cut-off valve can be applied to huge automatic sprinkler system, can also act on the lesser range of area, can be with So that limited water is persistently played a role, improves the extinguishing ability effect of automatic sprinkler system.The title of hour shut-off valve 280 degree of smoke evacuation automatic cut-off valves in smoke effluent design, if flue-gas temperature is more than 280 in building fire smoke exhaust process Think to have contained flare phenomenon in smoke evacuation when spending, in order to avoid fire range artificially expands, it is necessary to which fire of the partition along air duct is climing Prolong, system is also made to stopped work, therefore the entitled 280 degree of exhaust smoke valves of this valve are set.Similarly, automatic sprinkler system is in a fire Later period should close the spray head having turned on, the invalid water spray phenomenon when fire continues, and " Automatic Sprinkling System Design rule Model " GB50084 automatic sprinkler system action time is generally 1 hour~6 hours, therefore the entitled hour pass of this valve is set Disconnected valve.

The utility model is suitable for " Code for design of automatic fire sprinkler systems " GB50084 " Code for fire protection design of buildings " The place of automatic sprinkler system need to be arranged in GB50016 provision.Such as it is set in the building such as one, two class public buildings, workshop, warehouse, business Position is arranged in the automatic sprinkler fire-extinguishing system set, self-extinguishing water injection system branch pipe hour shut-off valve: 1, in each of which fire compartment water Branch pipe plays section after flowing indicator.2, section is played in the automatic sprinkler system branch pipe for entering independent room or space.The utility model goes out automatically Fire-fighting water system branch pipe hour shut-off valve cost increases on the automatic spray branch pipe of automatic sprinkler system at 300 yuan or so Add a hour automatic cut-off valve, national automatic sprinkler system fire-fighting ability and level can be improved.In concrete application, hour shutdown Valve should combine Precision Machinery Design, and the water quality situation used according to automatic sprinkler system accomplish not gamble plug, and dimensional weight is most Smallization operates simple installation.The reason of the utility model uses machine driving rather than electric autocontrol is that machine driving form may Failure is not likely to produce in the scene of a fire.

It is that self-extinguishing water injection system branch pipe hour shut-off valve mainly has the utility model has the advantages that can be turned off in fire During 1~6 hour, after the mobile diffusion of fire behavior, make the extinction by automatic sprinkling system being arranged originally, automatic-closing valve, to subtract The water of inefficiency loss when few fire-fighting, that improves fire cistern chresard uses the time.It is to extinction by automatic sprinkling system Active area endogenous fire post disaster phase developing direction it is perfect；The limited fire-fighting water in the scene of a fire can be saved；Cooperation personnel operation can be with Cope with Change and Development of the fire in a fire compartment；Transformation easy to repair and decoration construction.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: 1-automatic spray main line, 2-lining plastic butterfly valves, 3-connecting rods, 4-limit springs, 5-butterfly valves are opened Closing handle, 6-automatic spray branch pipes, 7-branch pipe spray heads, the 701-the first branch pipe spray head, 8-normally opened control valve for small flows, 9-hoses, 10-handle bars, 11-fire buckets.

Specific embodiment

A kind of self-extinguishing water injection system branch pipe hour shut-off valve as shown in Figure 1:, including it is automatic spray main line 1, automatic Spray branch pipe 6 and branch pipe spray head 7；Further include be mounted on it is on 6 pipeline of automatic spray branch pipe, be equipped with butterfly valve open and close handle 5 Lining plastic butterfly valve 2, fire bucket 11；The housing upper face of lining plastic butterfly valve 2 is equipped with connecting rod 3, connecting rod 3 and butterfly valve open and close hand Handle 5 is connected by limit spring 4, and butterfly valve open and close handle 5 is equipped with handle bar 10, and the lower end of handle bar 10 is equipped with Hook, hook connection fire bucket 11, automatic spray branch pipe 6 are connected with hose 9, and the other end and fire bucket 11 of hose 9 connect It is logical, normally opened control valve for small flows 8 is installed on hose 9.

Lining plastic butterfly valve 2 is mounted on before the first branch pipe spray head 701 of 6 water inlet end of automatic spray branch pipe；Hose 9 is metal Hose, spray head 7 are the spray head (belonging to the prior art) for being provided with glass marble.

The working principle and process of the utility model approximately as: at the position that fire occurs, fire causes near spray head The raising of environment temperature, when more than 35 degree of environment temperature, the glass ball fractured being arranged in spray head, spray head is in system high water tank It is discharged under pressure, by the unlatching of pressure switch in the confirmation and wet alarm valve group of smoke-temperature sensing probe signal, starting disappears Anti- system water pump is to system water supply.After the unlatching of fire automatic spray spray head occurs, since butterfly valve is now in open state, water Stream is flowed in the fire bucket being suspended on handle bar, by normally opened flow control valve and hose when water level reaches one Determine water level, fire bucket and water therein form certain gravity and torque, when gravity is greater than the upward pulling force of limit spring When, Handle of butterfly valve moves downward, and flap closes water stream channel, so that discharge reduction is to zero delivery in branch pipe.It is fixed to realize When close branch pipe flow idea.The small normally opened control valve of flow can control the size of flow, so can be under a certain pressure The water that more accurate control is flowed through, and the torque for closing butterfly valve is also certain.Small flow control can be determined through overtesting The open degree of valve processed, and it is corresponding determine the length of time closed, due in pipeline water velocity in 2.5m/s(maximum 5.0m/ S) left and right, front and back are piped known to the known spray head quantity after DN50 ~ DN25, valve of caliber.It can be according to the spray head of downstream institute band Quantity determines the model of hour shut-off valve, so as in the invalid water spray of the unmanned regulation in scene of fire.The best effort shape of performance system Condition.

The utility model installs and uses requirement:

1), hour shut-off valve is set on automatic sprinkler system branch pipe, pay attention to flow direction；Small space is generally located on to draw Enter the branch pipe starting point setting on pipe, more than no more than 8 spray heads.

2) self closing device of lining plastic butterfly valve, is adjusted to home position.

3) the branch tubulature net before, being mounted on end water testing device and testing valve of water (generally common facility in automatic sprinkler fire-extinguishing system) On the utility model be self-extinguishing water injection system branch pipe hour shut-off valve, after each test, manual reset.

4), manual inspection resets the hour shut-off valve acted after fire.

5), scene of fire is according to re-ignition phenomenon manual reset hour shut-off valve.

6), the same wet pipe system of installation substantially of dry automatic sprinkler system, only reaction speed is slower.

Claims (3)

1. a kind of self-extinguishing water injection system branch pipe hour shut-off valve, including automatic spray main line, automatic spray branch pipe and branch Pipe spray head；It is characterized by also including be mounted on it is on automatic spray branch pipe (6) pipeline, be equipped with butterfly valve open and close handle (5) Lining plastic butterfly valve (2), fire bucket (11)；The housing upper face of lining plastic butterfly valve (2) is equipped with connecting rod (3), connecting rod (3) and butterfly valve Open and close handle (5) is connected by limit spring (4), and butterfly valve open and close handle (5) is equipped with handle bar (10), hand The lower end of handle pull rod (10) is equipped with hook, and hook connection fire bucket (11), automatic spray branch pipe (6) is connected with hose (9), soft The other end of pipe (9) is connected to fire bucket (11), and normally opened control valve for small flows (8) are equipped on hose (9).

2. a kind of self-extinguishing water injection system branch pipe hour shut-off valve as described in claim 1, it is characterised in that: lining plastic butterfly valve (2) it is mounted on before the first branch pipe spray head (701) of automatic spray branch pipe (6) water inlet end.

3. a kind of self-extinguishing water injection system branch pipe hour shut-off valve as claimed in claim 2, it is characterised in that: hose (9) For metal hose.