CN219375941U - Special shower nozzle of low pressure carbon dioxide fire extinguishing systems - Google Patents

Abstract

The utility model relates to the field of fire extinguishing spray heads and discloses a special spray head for a low-pressure carbon dioxide fire extinguishing system, which comprises a spray nozzle cover and a spray head, wherein a first sealing seat is fixedly connected to the middle of the upper surface of the spray nozzle cover, a fixed groove and a sealing groove are respectively formed in the upper surface of the first sealing seat, a sealing ring is fixedly connected to the outer wall of the spray head close to the middle, a sealing ring is fixedly connected to the middle of the inner top surface of the sealing ring, a second sealing seat is fixedly connected to the middle of the inner top surface of the spray nozzle cover, a plurality of conical holes are formed in the lower end of the spray head, the lower end of the spray head penetrates through the spray nozzle cover to the inside of the spray nozzle cover, a rust protection layer is arranged on the outer wall of the spray nozzle cover, and anti-skid patterns are formed on the outer wall of the first sealing seat. In the utility model, the fire extinguishing nozzle has reasonable and compact whole body, simple structure, convenient disassembly and cleaning work of the nozzle and the nozzle cover by workers and strong practicality.

Description

Special shower nozzle of low pressure carbon dioxide fire extinguishing systems

Technical Field

The utility model relates to the field of fire extinguishing spray heads, in particular to a spray head special for a low-pressure carbon dioxide fire extinguishing system.

Background

With the high-speed development of economy in China, fire-fighting and fire-extinguishing are important in industrial production, wherein low-pressure carbon dioxide fire-extinguishing is widely applied, a low-pressure carbon dioxide automatic fire-extinguishing system is superior to the former in fire-extinguishing implementation based on the principle of a high-pressure carbon dioxide automatic fire-extinguishing system, and the dioxygen charcoal fire-extinguishing agent is stored in a liquid form in a storage container with a heat-insulating structure, so that the temperature of carbon dioxide in a storage tank is always kept at about minus twenty-eighteen ℃ through a cooling unit, and the pressure is kept at 1.9-2.1 megapascals.

Most of fire extinguishing agent spray heads in the low-pressure carbon dioxide fire extinguishing system are indispensible devices, and the fire extinguishing agent spray heads can enable the fire extinguishing agent to be sprayed more uniformly, and meanwhile, the stable use of the low-pressure carbon dioxide fire extinguishing system can be guaranteed.

However, most of the spray heads in the traditional low-pressure carbon dioxide fire extinguishing system are inconvenient for workers to detach, replace and clean the spray heads, meanwhile, the spray heads are easy to block in the long-term use process, and in the long-term use process of the spray heads, the low-pressure carbon dioxide fire extinguishing system is at the end of the first spraying period, and the valve is closed, so that a pressure source for pushing the flow of carbon dioxide liquid is suddenly arranged at a lower level, the formation of dry ice is aggravated, dry ice accumulated in the long-term use process cannot be gasified in a short time, the spray heads are in a blocking state, the stable use of the carbon dioxide fire extinguishing system is greatly influenced, and therefore, the technical improvement is urgently needed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a special spray head for a low-pressure carbon dioxide fire extinguishing system, which is reasonable and compact in whole, simple in structure, convenient for workers to split and clean the spray head and a nozzle cover, and high in practicality.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the special spray head for the low-pressure carbon dioxide fire extinguishing system comprises a spray nozzle cover and a spray head, wherein the middle part of the upper surface of the spray nozzle cover is fixedly connected with a first sealing seat, the upper surface of the first sealing seat is respectively provided with a fixed groove and a sealing groove, the outer wall of the spray head close to the middle part is fixedly connected with a sealing ring, and the middle part of the top surface inside the sealing ring is fixedly connected with a sealing ring;

the middle part fixedly connected with second seal seat of the inside top surface of nozzle housing, a plurality of bell mouths have all been seted up to the lower extreme of shower nozzle.

Through above-mentioned technical scheme, can change fire extinguishing agent spun mode through a plurality of bell mouths, improve to a plurality of spouts from traditional a spout, and then when the phenomenon of jam appears in one of them bell mouths, also can not influence other bell mouths' normal use, and then this fire extinguishing nozzle has guaranteed the steady operation of fire extinguishing work, simultaneously under the effect of a plurality of drainage strips, can make fire extinguishing agent more symmetrical when the blowout, improved the blowout effect of fire extinguishing agent greatly.

Further, the lower end of the spray head penetrates the nozzle cover to the inside of the nozzle cover.

Further, the outer wall of the nozzle cover is provided with a rust-proof layer.

Through above-mentioned technical scheme, can improve the rust-resistant ability of nozzle boot greatly through rust-resistant layer, and then improve its life.

Further, the outer wall of the first sealing seat is provided with anti-skid patterns.

Through above-mentioned technical scheme, can be convenient for the staff to take up first seal seat through the antiskid line.

Further, the inner wall of the sealing ring is in threaded connection with one end of the fixing groove, which is close to the center of the first sealing seat.

Through above-mentioned technical scheme, through threaded connection, the staff of can being convenient for to the installation of shower nozzle and dismantlement work.

Further, the outer wall of the lower end of the spray head is in threaded connection with the inner wall of the second sealing seat.

Through above-mentioned technical scheme, can further improve the stability when shower nozzle and second seal seat are connected through threaded connection.

Further, the inner wall of the nozzle cover is fixedly connected with a plurality of drainage strips.

Through the technical scheme, the fire extinguishing agent can be more symmetrical when being sprayed through the drainage strip, and the spraying effect of the fire extinguishing agent is greatly improved.

Further, the nozzle cover is made of aluminum alloy.

The utility model has the following beneficial effects:

1. compared with the existing fire extinguishing spray nozzle, the special spray nozzle for the low-pressure carbon dioxide fire extinguishing system provided by the utility model has the advantages that the fire extinguishing spray nozzle is in threaded connection with the sealing ring through the fixing groove, the outer wall of the lower end of the spray nozzle is in threaded connection with the inner wall of the second sealing seat, the sealing ring is tightly attached to the sealing groove, the purposes of being convenient for workers to install and detach the spray nozzle can be achieved, and meanwhile, the sealing effect is good, and the practicability is strong.

2. Compared with the existing fire-extinguishing spray nozzle, the spray nozzle special for the low-pressure carbon dioxide fire-extinguishing system can change the spray mode of the fire-extinguishing agent from a traditional spray nozzle to a plurality of spray nozzles through the plurality of conical holes, so that when one conical hole is blocked, the normal use of other conical holes is not influenced, the fire-extinguishing spray nozzle ensures the stable operation of fire-extinguishing work, and meanwhile, under the action of a plurality of drainage strips, the fire-extinguishing agent can be more symmetrical when sprayed, and the spray effect of the fire-extinguishing agent is greatly improved.

3. Compared with the existing fire-extinguishing spray nozzle, the spray nozzle special for the low-pressure carbon dioxide fire-extinguishing system provided by the utility model has the advantages of reasonable and compact whole, simple structure, convenience for the split cleaning work of the spray nozzle and the nozzle cover by workers and strong practicality.

Drawings

FIG. 1 is a front sectional view of a special nozzle for a low pressure carbon dioxide fire extinguishing system;

FIG. 2 is a front view of a special sprinkler head for a low pressure carbon dioxide fire suppression system according to the present utility model;

FIG. 3 is an isometric view of a special sprinkler head sealing ring and sprinkler head for a low pressure carbon dioxide fire suppression system in accordance with the present utility model;

FIG. 4 is an isometric view of a first seal seat, a fixed groove and a seal groove of a special nozzle of a low-pressure carbon dioxide fire extinguishing system;

fig. 5 is an enlarged view at a in fig. 1.

1. A nozzle cover; 2. a spray head; 3. a first seal seat; 4. a fixing groove; 5. sealing grooves; 6. a seal ring; 7. a seal ring; 8. a second seal seat; 9. a tapered bore; 10. a rust-proof layer; 11. a drainage strip; 12. anti-skid lines.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the special spray head for the low-pressure carbon dioxide fire extinguishing system comprises a spray nozzle cover 1 and a spray head 2, wherein the middle part of the upper surface of the spray nozzle cover 1 is fixedly connected with a first sealing seat 3, the upper surface of the first sealing seat 3 is respectively provided with a fixed groove 4 and a sealing groove 5, the outer wall of the spray head 2 close to the middle part is fixedly connected with a sealing ring 6, and the middle part of the top surface inside the sealing ring 6 is fixedly connected with a sealing ring 7;

the middle part of the inner top surface of the nozzle cover 1 is fixedly connected with a second sealing seat 8, and a plurality of conical holes 9 are formed at the lower end of the nozzle 2;

can change fire extinguishing agent spun mode through a plurality of bell mouths 9, improve to a plurality of spouts from traditional one spouts, and then when the phenomenon of jam appears in one of them bell mouths 9, also can not influence other bell mouths 9 normal use, and then this fire extinguishing nozzle has guaranteed the steady operation of fire extinguishing work, simultaneously under the effect of a plurality of drainage strips 11, can make fire extinguishing agent more symmetrical when the blowout, improved the blowout effect of fire extinguishing agent greatly.

The lower extreme of shower nozzle 2 runs through nozzle cover 1 to the inside of nozzle cover 1, the outer wall of nozzle cover 1 is provided with antirust layer 10, can improve the antirust capability of nozzle cover 1 greatly through antirust layer 10, and then improve its life, antiskid line 12 has been seted up to the outer wall of first seal seat 3, can be convenient for the staff to pick up first seal seat 3 through antiskid line 12, the inner wall of sealing ring 6 and the one end threaded connection that fixed slot 4 is close to first seal seat 3 center department, through threaded connection, can be convenient for the staff to the installation and the dismantlement work of shower nozzle 2, the outer wall of shower nozzle 2 lower extreme and the inner wall threaded connection of second seal seat 8, stability when being connected with shower nozzle 2 and second seal seat 8 can be further improved through threaded connection, the equal fixedly connected with of inner wall of nozzle cover 1 a plurality of drainage strips 11, can make the fire extinguishing agent more even when spouting through drainage strip 11, the blowout effect of fire extinguishing agent has been improved greatly, nozzle cover 1 uses the aluminum alloy material.

Working principle: through fixed slot 4 and sealing ring 6 threaded connection, make the outer wall of shower nozzle 2 lower extreme and the inner wall threaded connection of second seal seat 8 again, make sealing washer 7 and seal groove 5 closely laminate, can reach the purpose of being convenient for the staff's installation and dismantlement shower nozzle 2, sealed effectual simultaneously, can change fire extinguishing agent spun mode through a plurality of bell mouths 9 simultaneously, improve into a plurality of spouts from traditional one spouting, and then when the phenomenon of jam appears in one of them bell mouths 9, also can not influence other bell mouths 9's normal use, and then guaranteed the steady operation of fire extinguishing work, simultaneously under the effect of a plurality of drainage strips 11, can make fire extinguishing agent more symmetrical when the blowout, the blowout effect of fire extinguishing agent has been improved greatly.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a special shower nozzle of low pressure carbon dioxide fire extinguishing systems, includes nozzle housing (1) and shower nozzle (2), its characterized in that: the middle part of the upper surface of the nozzle cover (1) is fixedly connected with a first sealing seat (3), a fixed groove (4) and a sealing groove (5) are respectively formed in the upper surface of the first sealing seat (3), a sealing ring (6) is fixedly connected to the outer wall of the nozzle (2) close to the middle part, and a sealing ring (7) is fixedly connected to the middle part of the inner top surface of the sealing ring (6);

the middle part fixedly connected with second seal seat (8) of nozzle housing (1) inside top surface, a plurality of bell mouth (9) have all been seted up to the lower extreme of shower nozzle (2).

2. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the lower end of the spray head (2) penetrates through the nozzle cover (1) to the inside of the nozzle cover (1).

3. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: an antirust layer (10) is arranged on the outer wall of the nozzle cover (1).

4. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the outer wall of the first sealing seat (3) is provided with anti-skid patterns (12).

5. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the inner wall of the sealing ring (6) is in threaded connection with one end of the fixing groove (4) close to the center of the first sealing seat (3).

6. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the outer wall of the lower end of the spray head (2) is in threaded connection with the inner wall of the second sealing seat (8).

7. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the inner wall of the nozzle cover (1) is fixedly connected with a plurality of drainage strips (11).

8. The special nozzle for a low-pressure carbon dioxide fire extinguishing system according to claim 1, wherein: the nozzle cover (1) is made of aluminum alloy.