CN220601237U - Direct-buried fire-fighting pipe antifreezing device on outdoor local freezing line - Google Patents

Abstract

The utility model discloses an antifreezing device for directly buried fire pipes on an outdoor local freezing line, which comprises a fire pipe pre-buried outdoors and underground, wherein the top of the fire pipe is provided with a U-shaped structure, the U-shaped structure of the fire pipe is sleeved with a heat insulation layer, the central part of the U-shaped structure of the fire pipe is welded with a rigid sleeve pipe with both ends being of plugging structures, the rigid sleeve pipe is positioned in the heat insulation layer, the heat insulation layer is matched with the rigid sleeve pipe to insulate and freeze the U-shaped pipe, the top and the bottom of the rigid sleeve pipe are communicated and fixed with first connecting pipes, one sides of the two first connecting pipes far away from each other extend out of the heat insulation layer, and the right side of the heat insulation layer is provided with a thermal valve inspection well. According to the utility model, through a series of structures, the fire-fighting pipe can be insulated in a mode of hot water circulation and heat insulation by matching with the heat insulation layer, so that the water temperature in the local fire-fighting pipe is ensured to be higher than 5 ℃, and the anti-freezing effect is achieved.

Description

Direct-buried fire-fighting pipe antifreezing device on outdoor local freezing line

Technical Field

The utility model relates to the technical field of directly buried fire fighting pipe antifreezing equipment, in particular to a directly buried fire fighting pipe antifreezing device on an outdoor local freezing line.

Background

At present, most of outdoor fire-fighting pipelines are directly buried and laid, the minimum pipe top of the pipeline is required to be covered with soil at least 0.3 meter below a freezing line, because the outdoor pipelines of each specialty are more, the pipeline crossing phenomenon basically exists, the local turning avoidance situation can occur inevitably, the general fire-fighting pipelines are turned downwards to avoid the buried depth, but the top of a large chassis garage in the existing community is covered with soil at limited depth, the pipelines such as drainage water can be avoided to turn upwards and the requirement of 0.3 meter below the freezing line can not be met, in order to reduce the risk of freezing damage of the fire-fighting pipelines, the general heat preservation is usually carried out, but because the fire-fighting water does not flow generally, the antifreezing effect of the fire-fighting pipelines can not be guaranteed only by the general heat preservation, the antifreezing effect is not ideal, the use requirement can not be met, and therefore, the direct buried fire-fighting pipeline antifreezing device on the outdoor local freezing line is proposed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an antifreezing device for directly burying a fire tube on an outdoor local freezing line.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a directly buried fire control pipe freeze-proof device on outdoor local freezing line, including the fire control pipe pre-buried underground, the top of fire control pipe is established to U-shaped structure, the cover is equipped with the heat preservation on the U-shaped structure of fire control pipe, U-shaped structure center part welding cover of fire control pipe is equipped with the rigid pipe that both ends are the shutoff structure, rigid pipe is located the heat preservation, cooperate through heat preservation and rigid pipe, keep warm the fire control pipe and prevent frostbite, rigid pipe's top and bottom all communicate and are fixed with first connecting pipe, one side that two first connecting pipes keep away from each other all extends to the heat preservation outside, the right side of heat preservation is equipped with the heating power valve inspection shaft, the right-hand member of two first connecting pipes all extends to the heating power valve inspection shaft in, the right-hand member intercommunication of the first connecting pipe that is located the top is fixed with static balance valve, the right-hand member of static balance valve and the right-hand member of below first connecting pipe all communicate and are fixed with the stop valve, the right side intercommunication of stop valve is fixed with automatic exhaust valve, the right side intercommunication is fixed with the second connecting pipe, the bottom intercommunication of the second connecting pipe that is located the left side is fixed with the delivery pipe, the second connecting pipe, the bottom intercommunication that is located the second connecting pipe on the right side is located the second connecting pipe, the automatic exhaust valve is equipped with the heating power pipe, the automatic return valve is the heating power pipe, the return valve is the heating pipe and the return valve is the heating pipe.

Preferably, the outdoor underground is provided with a freezing line, and a part of the U-shaped structure of the fire tube is positioned above the freezing line.

Preferably, the welding holes are formed in the inner walls of the two ends of the rigid sleeve, an anti-corrosion layer is arranged in the welding holes, the anti-corrosion layer is welded and fixed with the outer side of the fire-fighting pipe, and the anti-corrosion layer achieves the anti-corrosion effect when the rigid sleeve is welded with the fire-fighting pipe.

Preferably, the heat-insulating layer is made of polyurethane foam heat-insulating material, and the heat-insulating layer is made of glass fiber reinforced plastic protective layer.

Preferably, the diameter of the rigid sleeve is 100mm greater than the diameter of the fire tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. the heat preservation layer, the rigid sleeve, the first connecting pipe, the thermal valve inspection well, the static balance valve, the stop valve, the automatic exhaust valve, the water supply pipe, the water return pipe and the second connecting pipe are matched, so that the fire tube can be preserved in a heat preservation mode by matching the circulating flow of hot water with the heat preservation layer, the water temperature in the local fire tube is ensured to be higher than 5 ℃, and freezing is avoided;

according to the utility model, through a series of structures, the fire-fighting pipe can be insulated in a mode of hot water circulation and heat insulation by matching with the heat insulation layer, so that the water temperature in the local fire-fighting pipe is ensured to be higher than 5 ℃, and the anti-freezing effect is achieved.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an antifreezing device for a directly buried fire tube on an outdoor local freezing line.

In the figure: 100. a fire tube; 101. a freezing line; 102. a drain pipe; 1. a heat preservation layer; 2. an anti-corrosion layer; 3. a rigid sleeve; 4. a first connection pipe; 5. a thermal valve manhole; 6. a static balancing valve; 7. a stop valve; 8. an automatic exhaust valve; 9. a water supply pipe; 10. a water return pipe; 11. and a second connection pipe.

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.

Referring to fig. 1, the directly buried fire tube antifreezing device on the outdoor local freezing line comprises a fire tube 100 pre-buried in the outdoor underground, wherein the top of the fire tube 100 is provided with a U-shaped structure, a drain pipe 102 is pre-buried in the outdoor underground, the drain pipe 102 is positioned in the U-shaped structure of the fire tube 100, the drain pipe 102 is used for discharging underground water, the outdoor underground is provided with the freezing line 101, part of the U-shaped structure of the fire tube 100 is positioned above the freezing line 101, the U-shaped structure of the fire tube 100 is sheathed with an insulating layer 1, the inside of the insulating layer 1 is made of polyurethane foam insulating material, the outside of the insulating layer is made of glass fiber reinforced plastic protective layer, the central part of the U-shaped structure of the fire tube 100 is sheathed with a rigid sleeve 3 with both ends being of a plugging structure, the diameter of the rigid sleeve 3 is 100mm larger than the diameter of the fire tube 100, the inner walls at both ends of the rigid sleeve 3 are provided with welding holes, an anti-corrosion layer 2 is arranged in the welding holes, the anti-corrosion layer 2 is welded and fixed with the outer side of the fire tube 100, the anti-corrosion layer 3 is welded with the fire tube 100, the effect when the rigid sleeve 3 is positioned in the insulating layer 1, and the insulating layer 1 is matched with the insulating layer 3, and the insulating layer 100 is used for preventing freezing;

the top and the bottom of just sleeve pipe 3 all communicate and are fixed with first connecting pipe 4, the one side that two first connecting pipes 4 keep away from each other all extends to outside heat preservation 1, the right side of heat preservation 1 is equipped with heating power valve inspection shaft 5, the right-hand member of two first connecting pipes 4 all extends to in the heating power valve inspection shaft 5, the right-hand member intercommunication of the first connecting pipe 4 that is located the top is fixed with static balance valve 6, the right-hand member of static balance valve 6 and the right-hand member of below first connecting pipe 4 all communicate and are fixed with stop valve 7, the right side intercommunication of stop valve 7 is fixed with automatic exhaust valve 8, the right side intercommunication of automatic exhaust valve 8 is fixed with second connecting pipe 11, the bottom intercommunication of the second connecting pipe 11 that is located the left side is fixed with delivery pipe 9, the bottom intercommunication of the second connecting pipe 11 that is located the right side is fixed with return pipe 10, through first connecting pipe 4, the static balance valve 6, stop valve 7, automatic exhaust valve 8 and second connecting pipe 11 cooperate, can realize just sleeve pipe 3 and delivery pipe 9 and return pipe 10's intercommunication, delivery pipe 9 are heating power delivery pipe, return 10 is heating heat pipe, the heating heat pipe is the heat preservation effect can be reached through setting up a series of heat preservation pipe 100 through setting up the heat preservation structure of circulating heat pipe, the utility model, can reach the heat preservation effect of the heat preservation 100, and the heat preservation is realized by the heat preservation of the heat pipe of the heat preservation 1, and the heat preservation is guaranteed.

Working principle: when the anti-freezing device is used, the heat preservation layer 1 is additionally arranged outside the fire tube 100 which does not partially meet the condition that the freezing line is 0.3m below, the fire tube 100 is matched with the rigid sleeve 3 to be airtight, the heat preservation effect on the outer side of the fire tube 100 is achieved, meanwhile, two second connecting tubes 11 are respectively connected with the water supply tube 9 and the water return tube 10, hot water of a nearby outdoor heating pipe network is provided through the water supply tube 9, the static balance valve 6 and the stop valve 7 are opened, hot water in the water supply tube 9 sequentially enters the rigid sleeve 3 through the second connecting tube 11 on the left side, the automatic exhaust valve 8 on the lower side and the first connecting tube 4 on the lower side, the hot water in the rigid sleeve 3 sequentially enters the water return tube 10 through the first connecting tube 4 on the upper side, the static balance valve 6 on the upper side, the automatic exhaust valve 8 on the upper side and the second connecting tube 11 on the right side, the hot water continuously flows, the hot water circulates in the rigid sleeve 3, the hot water is heated to the fire tube 100, the water temperature in the local fire tube 100 is ensured to be higher than 5 ℃, and freezing is avoided.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The directly buried fire tube antifreezing device on the outdoor local freezing line comprises a fire tube (100) which is pre-buried outdoors and underground, wherein the top of the fire tube (100) is provided with a U-shaped structure, the U-shaped structure of the fire tube (100) is sleeved with a heat preservation layer (1), the central part of the U-shaped structure of the fire tube (100) is welded with a rigid sleeve (3) with both ends being of a plugging structure, the rigid sleeve (3) is positioned in the heat preservation layer (1), the top and the bottom of the rigid sleeve (3) are communicated and fixed with a first connecting tube (4), one sides of the two first connecting tubes (4) which are far away from each other are all extended outside the heat preservation layer (1), the right side of the heat preservation layer (1) is provided with a thermal valve inspection well (5), the right ends of the two first connecting tubes (4) are all extended into the thermal valve inspection well (5), the right end of the first connecting tube (4) positioned above is communicated and fixed with a static balance valve (6), the right side of the static balance valve (6) and the right end of the lower first connecting tube (4) are communicated and fixed with a first connecting tube (7), one side of the two first connecting tubes (7) is communicated and fixed with a second vent valve (8) is communicated and fixed with the right side of the second connecting tube (8), the bottom end of the second connecting pipe (11) positioned at the right side is fixedly communicated with a water return pipe (10).

2. The directly buried fire tube freeze protection device on an outdoor local freeze line according to claim 1, wherein the outdoor subsurface is provided with a freeze line (101), and a portion of the fire tube (100) U-shaped structure is located above the freeze line (101).

3. The antifreezing device for directly buried fire pipes on outdoor local freezing lines according to claim 1, wherein the inner walls of the two ends of the rigid sleeve (3) are provided with welding holes, an anti-corrosion layer (2) is arranged in each welding hole, and the anti-corrosion layer (2) is welded and fixed with the outer side of the fire pipe (100).

4. The antifreezing device for directly buried fire pipes on outdoor local freezing lines according to claim 1, wherein the heat insulating layer (1) is made of polyurethane foam heat insulating material, and the outer part is made of glass fiber reinforced plastic protective layer.

5. The direct-buried fire pipe antifreeze apparatus of the outdoor local freezing line according to claim 1, wherein the diameter of the rigid pipe (3) is 100mm larger than the diameter of the fire pipe (100).