CN215857987U - Outdoor fire pipeline freeze-proof device - Google Patents
Outdoor fire pipeline freeze-proof device Download PDFInfo
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- CN215857987U CN215857987U CN202121091179.8U CN202121091179U CN215857987U CN 215857987 U CN215857987 U CN 215857987U CN 202121091179 U CN202121091179 U CN 202121091179U CN 215857987 U CN215857987 U CN 215857987U
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Abstract
The utility model provides an outdoor fire-fighting pipeline anti-freezing device which comprises an indoor water supply pipe, an indoor air source pipe and an indoor drain pipe, wherein the water supply pipe is communicated with an outdoor fire-fighting pipeline, and a fire-fighting stop valve is arranged on the fire-fighting pipeline; a water inlet stop valve and a water inlet check valve are sequentially arranged on the water supply pipe along the water inlet direction, and an air source pipe and a water discharge pipe are connected to the water supply pipe positioned on the downstream side of the water inlet check valve; the water discharging pipe is provided with a water discharging stop valve, and the air source pipe is sequentially provided with an air inlet stop valve, an air inlet check valve and a pressure gauge along the air inlet direction. The utility model has simple structure, reasonable design and convenient operation and use, can ensure that the fire-fighting pipeline is not frozen and damaged, can normally use the fire hydrant at any time in winter, has simple and quick operation and can meet the requirement of quick water supply in the emergency state of fire.
Description
Technical Field
The utility model relates to the technical field of fire fighting, in particular to an outdoor fire fighting pipeline anti-freezing device.
Background
The fire fighting pipeline is a pipeline for connecting fire fighting equipment and equipment (such as a fire hydrant) and transporting water for fire fighting. Most fire-fighting pipelines are located outdoors and connected with a water supply pipe, and after being opened, the fire-fighting pipelines directly spray water to extinguish fire. When the weather becomes cold in winter, the stored water in the fire fighting pipeline is often frozen, so that the fire fighting system cannot normally discharge water for use, and the fire fighting pipeline is usually directly frozen to crack, thereby bringing great trouble and potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model aims to provide an outdoor fire-fighting pipeline anti-freezing device which can prevent a pipeline from being frozen and does not influence the rapid water supply of the fire-fighting pipeline in winter.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
an outdoor fire-fighting pipeline anti-freezing device comprises a water supply pipe, an air source pipe and a water drain pipe which are arranged indoors, wherein the water supply pipe is communicated with an outdoor fire-fighting pipeline, and a fire-fighting stop valve is arranged on the fire-fighting pipeline; a water inlet stop valve and a water inlet check valve are sequentially arranged on the water supply pipe along the water inlet direction, and an air source pipe and a water discharge pipe are connected to the water supply pipe positioned on the downstream side of the water inlet check valve; the water discharging pipe is provided with a water discharging stop valve, and the air source pipe is sequentially provided with an air inlet stop valve, an air inlet check valve and a pressure gauge along the air inlet direction.
The utility model is further improved in that: the air source pipe is arranged at the downstream end of the drain pipe.
The utility model is further improved in that: the water supply pipe is communicated with a circulating water pipeline of a factory, and the air source pipe is communicated with a compressed air pipeline of the factory.
The utility model is further improved in that: the fire-fighting stop valve is DN65 stop valve, the stop valve of intaking is DN80 stop valve, admit air stop valve, drainage stop valve are DN15 stop valve.
The utility model is further improved in that: the water inlet check valve is a DN80 check valve, and the air inlet check valve is a DN15 check valve.
Due to the adoption of the technical scheme, the utility model has the technical progress that:
the utility model provides an outdoor fire-fighting pipeline anti-freezing device which is simple in structure, reasonable in design and convenient to operate and use, and can be used for emptying and drying water in a pipeline after entering winter, so that a positive pressure state in the pipeline is kept, and freezing is avoided; when the fire hydrant device is used, the pipe pressure can be reduced and the water inlet pipe is directly connected to realize water supply only by opening the fire stop valve, so that the fire fighting pipeline is not frozen and damaged, the fire hydrant can be normally used at any time in winter, the operation is simple and rapid, and the rapid water supply under the fire emergency state can be met.
Drawings
FIG. 1 is a schematic view of the overall connection of the present invention;
in the figure, 1 part of a fire pipeline, 1-1 part of a fire-fighting stop valve, 2 parts of a water inlet pipe, 2-1 parts of a water inlet stop valve, 2-2 parts of a water inlet check valve, 3 parts of a gas source pipe, 3-1 parts of an air inlet stop valve, 3-2 parts of an air inlet check valve, 3-3 parts of a pressure gauge, 4 parts of a water drain pipe, 4-1 parts of a water drain stop valve.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings.
An outdoor fire fighting pipeline anti-freezing device is shown in figure 1 and comprises a water inlet pipe 2, an air source pipe 3 and a water discharge pipe 4 which are arranged indoors. The water inlet pipe 2 is communicated with the outdoor fire fighting pipeline 1, the front end of the fire fighting pipeline 1 is connected with facilities such as fire hydrant, and the fire fighting pipeline 1 is provided with a fire fighting stop valve 1-1 so as to realize the opening and closing of the fire fighting pipeline 1.
The water inlet pipe 2 is connected with a circulating water pipeline of a factory, a water inlet stop valve 2-1 and a water inlet check valve 2-2 are sequentially installed on the water inlet pipe 2 along the water inlet direction, the water inlet stop valve 2-1 is used for opening and closing the water inlet pipe 2, and the water inlet check valve 2-2 is used for preventing compressed air from flowing backwards into the circulating water pipeline. The air source pipe 3 and the drain pipe 4 are both connected with the water inlet pipe 2 positioned on the downstream side of the water inlet check valve 2-2, and the air source pipe 3 is arranged at the downstream end of the drain pipe 4.
One end of the air source pipe 3 is communicated with the water inlet pipe 2, and the other end of the air source pipe is connected with a compressed air pipeline of a factory; an air inlet stop valve 3-1, an air inlet check valve 3-2 and a pressure gauge 3-3 are sequentially arranged on the air source pipe 3 along the air inlet direction. Compressed air enters the fire fighting pipeline 1 through the air source pipe 3 to realize purging, and meanwhile, water in the fire fighting pipeline 1 is prevented from flowing back to the air source pipe 3 through the air inlet check valve 3-2.
One end of the drain pipe 4 is communicated with the water inlet pipe 2, and the outlet of the other end of the drain pipe is connected with a sewer; a drainage stop valve 4-1 is arranged on the drainage pipe 4.
Preferably, the fire-fighting pipeline and the water inlet pipe are both DN80 galvanized pipes, and the air source pipe and the water outlet pipe are both DN15 galvanized pipes.
Preferably, the fire-fighting stop valve 1-1 is a DN65 stop valve and is installed on a DN80 fire-fighting pipeline through a reducing pipe; the water inlet stop valve 2-1 is a DN80 stop valve, the water inlet check valve 2-2 is a DN80 check valve, the air inlet stop valve 3-1 is a DN15 stop valve, the air inlet check valve 3-2 is a DN15 check valve, and the water discharge stop valve 4-1 is a DN15 stop valve.
The working process of the utility model is as follows:
s1, when entering a cold season, draining water in the fire fighting pipeline; closing the water inlet stop valve and the air inlet stop valve, and opening the fire-fighting stop valve and the drainage stop valve to drain residual water in the fire-fighting pipeline through the drainage pipe;
s2, closing the drainage stop valve, opening the air inlet stop valve, blowing the fire-fighting pipeline through compressed air, and drying the moisture remained in the pipeline wall;
s3, closing the fire fighting stop valve, continuing to introduce compressed air into the fire fighting pipeline until the pressure in the fire fighting pipeline reaches 0.5-0.6 MPa, and keeping the air inlet stop valve open to ensure that the interior of the fire fighting pipeline is kept in a positive pressure state;
s4, stabilizing the air pressure in the pipeline to be fire-fighting, and starting the water inlet stop valve, wherein the water flow is only reserved at the upstream end of the water inlet check valve (the water pressure is 0.3-0.35 MPa) due to the combined action of the positive pressure state in the fire-fighting pipeline and the water inlet check valve; when the fire fighting pipeline is not used in winter, the air inlet pipe and the water inlet pipe are both kept in an open state, and positive pressure is maintained in the fire fighting pipeline;
s5, when the fire fighting pipeline is needed, the fire fighting stop valve is directly opened, pressure in the fire fighting pipeline is discharged, air pressure is lower than water pressure, and water flow in the water inlet pipe flows out through the water inlet check valve, so that the fire fighting pipeline can be used.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides an outdoor fire control pipeline freeze-proof device which characterized in that: the fire-fighting water supply device comprises a water inlet pipe (2), an air source pipe (3) and a water drain pipe (4) which are arranged indoors, wherein the water inlet pipe (2) is communicated with a fire-fighting pipeline (1) which is arranged outdoors, and a fire-fighting stop valve (1-1) is arranged on the fire-fighting pipeline (1); a water inlet stop valve (2-1) and a water inlet check valve (2-2) are sequentially arranged on the water inlet pipe (2) along the water inlet direction, and an air source pipe (3) and a water outlet pipe (4) are connected to the water inlet pipe (2) positioned on the downstream side of the water inlet check valve (2-2); the water discharging pipe (4) is provided with a water discharging stop valve (4-1), and the air source pipe (3) is sequentially provided with an air inlet stop valve (3-1), an air inlet check valve (3-2) and a pressure gauge (3-3) along the air inlet direction.
2. An outdoor fire fighting pipeline anti-freezing device according to claim 1, characterized in that: the air source pipe (3) is arranged at the downstream end of the drain pipe (4).
3. An outdoor fire fighting pipeline anti-freezing device according to claim 1, characterized in that: the water inlet pipe (2) is communicated with a circulating water pipeline of a factory, and the air source pipe (3) is communicated with a compressed air pipeline of the factory.
4. An outdoor fire fighting pipeline anti-freezing device according to claim 1, characterized in that: the fire-fighting stop valve (1-1) is a DN65 stop valve, the water inlet stop valve (2-1) is a DN80 stop valve, and the air inlet stop valve (3-1) and the water discharge stop valve (4-1) are DN15 stop valves.
5. An outdoor fire fighting pipeline anti-freezing device according to claim 1, characterized in that: the water inlet check valve (2-2) is a DN80 check valve, and the air inlet check valve (3-2) is a DN15 check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091179.8U CN215857987U (en) | 2021-05-20 | 2021-05-20 | Outdoor fire pipeline freeze-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091179.8U CN215857987U (en) | 2021-05-20 | 2021-05-20 | Outdoor fire pipeline freeze-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857987U true CN215857987U (en) | 2022-02-18 |
Family
ID=80316947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121091179.8U Active CN215857987U (en) | 2021-05-20 | 2021-05-20 | Outdoor fire pipeline freeze-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215857987U (en) |
-
2021
- 2021-05-20 CN CN202121091179.8U patent/CN215857987U/en active Active
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