CN201001928Y - Limit-pressure storage type high-pressure carbon dioxide fire-extinguishing device - Google Patents

Abstract

The utility model discloses a constant pressure stored high pressure carbon-dioxide fire-extinguishing device and comprises an evaporator unit (3), of which an evaporator (19) in the evaporator unit (3) is arranged in a neck part of an evaporator (17); an in pipe and an out pipe of the evaporator (19) are threaded trough a flange cover (21) at the outlet of a storage container; the flange cover (21) is arranged on a flange (20) on a neck port of the storage container by a bolt (24) and a nut (25) and a storage container (17) is sealed; a screw (22) is positioned at the lower end of the flange cover (21); the evaporator (19) is arranged in a frame (18), of which the upper end is limited by the flange cover (21) and the lower end is limited by a nut (23) on the screw (22) through the evaporator; the utility model solves the problem that the large floor space and the cost of the fire retardant of the high carbon-dioxide fire-fighting system, and the maintenance difficulty of the evaporator.

Description

Constant-pressure storage type high-pressure carbon dioxide extinguishing device

Technical field

The utility model relates to extinguishing device, especially relates to a kind of constant-pressure storage type high-pressure carbon dioxide extinguishing device that has removable evaporimeter.

Background technology

Because alkyl halide is to the destruction of atmospheric ozone layer, more and more stricter restriction has been made to the use of alkyl halide by international community, and carbon dioxide is the first-selected product that replaces alkyl halide.CO has passed through applying of many decades abroad, has experienced a large amount of fire tests, is Application and Development gas extinguishing system the earliest.In China, though the high and low pressure CO has passed through application for many years.Since high-pressure carbon dioxide fire extinguishing system extinguishing chemical to fill density lower, so the used steel cylinder of bunkerage is many, floor space is big, cost is also high, biggest advantage is the initial pressure height when spurting, and reaches 5.17MPa, the fed distance of extinguishing chemical is long; For low pressure carbon dioxide fire extinguishing systems, because the loading amount coefficient is big, and adopt basin to store extinguishing chemical, its floor space is little, and cost is also lower, and maximum problem is that the initial pressure when spurting is low, has only 2.07MPa, and fed distance is short.Constant-pressure storage type high-pressure carbon dioxide extinguishing device has just in time overcome the shortcoming of high and low pressure CO, has brought into play their advantage.In addition, what present carbon dioxide extinguisher installation adopted is fixed evaporation structure, promptly when making the carbon dioxide basin, in advance evaporimeter is placed in the basin, in case being evaporimeter, the weak point of this mode breaks down, can't keep in repair, thereby cause whole low pressure CO 2 extinguishing device to be scrapped.

The utility model content

Goal of the invention of the present utility model is to overcome the shortcoming of above-mentioned high and low CO, and the constant-pressure storage type high-pressure carbon dioxide extinguishing device of a kind of practicality, good economy performance is provided.

In order to achieve the above object, the utility model adopts following technical scheme: a kind of constant-pressure storage type high-pressure carbon dioxide extinguishing device, comprise refrigeration unit, liquid level sensor, evaporator assemblies, service valve, the master control valve, balanced valve, filling valve, controller, the Pressure gauge service valve, Pressure gauge, pressure sensor, safe pressure relief device, air control unit, the evaporimeter of described evaporator assemblies is positioned at the hold-up vessel neck, the inlet pipe of evaporimeter and go out the blind flange that pipe passes the hold-up vessel exit respectively, blind flange is installed on the flange on the hold-up vessel eck by bolt and nut and seals hold-up vessel, the blind flange lower end is equipped with screw rod, evaporimeter is positioned at framework, the framework upper end is spacing by blind flange, and the framework lower end is spacing by the nut on the screw rod that passes the evaporimeter middle part.

Described evaporimeter spiral surrounding forms overlapping shape structure.

The temperature that present high-pressure carbon dioxide fire extinguishing system is stored extinguishing chemical is 0 ℃～+ 49 ℃, corresponding maximum pressure is 15MPa, and the maximum temperature of the utility model constant-pressure storage type high-pressure carbon dioxide extinguishing device storage extinguishing chemical is 17 ℃, corresponding maximum pressure is 5.3MPa, greatly reduce the bearing capacity of hold-up vessel, reduce the cost of system, improved the reliability of system.In addition, the utility model is positioned at evaporimeter in hold-up vessel and communicates with the hold-up vessel inner chamber, evaporimeter is positioned in the framework, framework is installed on the screw rod of blind flange by nut, it is whole that evaporimeter and hold-up vessel flange lid is formed, and blind flange is installed on the flange on the hold-up vessel eck by bolt and nut and seals hold-up vessel, like this, evaporimeter just forms a relatively independent evaporating space, is used for the CO with constant-pressure storage type high-pressure carbon dioxide extinguishing device ₂Change liquid state into by gaseous state, in case and evaporimeter breaks down, blind flange can be backed out from flange, evaporimeter taken out in the hold-up vessel keep in repair, avoided can't keeping in repair because of evaporimeter breaks down, thus the problem that causes whole low pressure CO 2 extinguishing device to be scrapped.

The beneficial effect of the utility model constant-pressure storage type high-pressure carbon dioxide extinguishing device is: efficiently solve that high-pressure carbon dioxide fire extinguishing system extinguishing chemical floor space is big, cost is also high and low pressure CO 2 extinguishing device short problem of fed distance when spurting, the utility model also efficiently solves the maintenance difficult problem of evaporimeter when breaking down, can repair fast, can not cause whole device to be scrapped, and rehabilitation expense is extremely low.

Description of drawings

Fig. 1 is the front view of the utility model constant-pressure storage type high-pressure carbon dioxide extinguishing device;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the removable evaporimeter composition figure that the utility model is used for constant-pressure storage type high-pressure carbon dioxide extinguishing device.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the operation principle of the utility model constant-pressure storage type high-pressure carbon dioxide extinguishing device specific embodiment is described in further detail and is described below:

The structure of a kind of removable evaporimeter of the utility model such as Fig. 1, Fig. 2, shown in Figure 3: mainly by refrigeration unit 1, liquid level sensor 2, evaporator assemblies 3, service valve 4, master control valve 5, balanced valve 9, filling valve 10, controller 11, Pressure gauge service valve 12, Pressure gauge 13, pressure sensor 14, safe pressure relief device 15, air control unit 16 is formed, wherein the evaporimeter 19 in the evaporator assemblies 3 is positioned at hold-up vessel 17 necks, the inlet pipe of evaporimeter 19 and go out the blind flange 21 that pipe passes the hold-up vessel exit respectively, blind flange 21 is installed on the flange 20 on the hold-up vessel eck by bolt 24 and nut 25 and seals hold-up vessel 17, blind flange 21 lower ends are equipped with screw rod 22, evaporimeter 19 is positioned at framework 18, framework 18 upper ends are spacing by blind flange 21, and framework 18 lower ends are spacing by the nut 23 on the screw rod 22 that passes the evaporimeter middle part.Evaporimeter 19 spiral surroundings form overlapping shape structure.

In Fig. 1 of the present utility model, Fig. 2,1. refrigeration unit: form refrigeration system with evaporator assemblies, be used to reduce the temperature of extinguishing chemical in the basin; 2. liquid level sensor: detect the level value of extinguishing chemical in the hold-up vessel, be sent to master controller, show liquid level, understand device and have or not leakage; 3. evaporator assemblies: form refrigeration system with refrigeration unit, be used to reduce the temperature of extinguishing chemical in the basin; 4. service valve: when being used to overhaul, shutoff device and the outside pipe network that is connected make two parts separate; 5. master control valve: receive controller open and close signal, open, close the master control valve by air control unit, be used for agent application and stop to spurt; 6. liquid carbon dioxide: the extinguishing chemical that is used to put out a fire of storage; 7. heat-insulation layer: the heat exchange of compartmentalized storage container and outside air, reduce the start-stop time and the running time of refrigeration unit; 8. hold-up vessel: be used to store extinguishing chemical; 9. balanced valve: when filling extinguishing chemical, open and be used for the inside and outside pressure of balance hold-up vessel, fill and close after finishing; 10. filling valve:, fill and close after finishing as the interface that in hold-up vessel, fills extinguishing chemical; 11. controller: be used to control this demonstration of installing each parameter, warning; Controlling this device moves under the condition of work of determining; Receive startup, the stop signal of fire alarm control unit simultaneously, control spurting and stopping to spurt of this device extinguishing chemical; 12. Pressure gauge service valve: be used for the manometric demonstration of On/Off; 13. Pressure gauge: be used to show the pressure in the hold-up vessel; 14. pressure sensor: detect the pressure in the hold-up vessel, be sent to controller, control opening, stopping of refrigeration unit; 15. safe pressure relief device: want at ordinary times and can seal reliably, do not allow the CO2 extinguishing chemical miss, in case and pressure surpasses setting value, just must open, emit unnecessary CO2, container inner pressure is no longer risen, thereby guarantees security of system; 16. air control unit: be used to control the opening and closing of pneumatic master control.In Fig. 3 of the present utility model, 17. hold-up vessels 17: be used to store extinguishing chemical; 18. framework 18 (evaporator tube fixed component): be used for fixing evaporator tube, it is whole that evaporator tube and hold-up vessel flange lid is formed; 19. evaporimeter 19: the copper pipe by certain-length is processed to form, and the pipe outer wall absorbs the heat of hold-up vessel, takes hold-up vessel out of by the cold-producing medium of inwall, reduces the temperature of extinguishing chemical in the hold-up vessel; 20. hold-up vessel flange 20: be used for and being connected that the hold-up vessel flange covers; 21. hold-up vessel flange lid 21: be connected with the hold-up vessel flange, be used to seal the interface of hold-up vessel.

The removable evaporimeter that the utility model is used for constant-pressure storage type high-pressure carbon dioxide extinguishing device is not limited to the scope of the specific embodiment, and all innovation and creation that utilize the present utility model design are all at the row of protection.

Claims (2)

1, a kind of constant-pressure storage type high-pressure carbon dioxide extinguishing device, comprise refrigeration unit (1), liquid level sensor (2), evaporator assemblies (3), service valve (4), master control valve (5), balanced valve (9), filling valve (10), controller (11), Pressure gauge service valve (12), Pressure gauge (13), pressure sensor (14), safe pressure relief device (15), air control unit (16), it is characterized in that: the evaporimeter (19) in the evaporator assemblies (3) is positioned at hold-up vessel (17), the inlet pipe of evaporimeter (19) and go out the blind flange (21) that pipe passes the hold-up vessel exit respectively, blind flange (21) is gone up and sealing hold-up vessel (17) by the flange (20) that bolt (24) and nut (25) are installed in the hold-up vessel exit, blind flange (21) lower end is equipped with screw rod (22), evaporimeter (19) is positioned at framework (18), framework (18) upper end is spacing by blind flange (21), and framework (18) lower end is spacing by the nut (23) on the screw rod (22) that passes the evaporimeter middle part.

2, constant-pressure storage type high-pressure carbon dioxide extinguishing device according to claim 1 is characterized in that: evaporimeter (19) spiral surrounding forms overlapping shape structure.

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