Anti-freezing device for fire well

Abstract

The utility model discloses an anti-freezing device for a fire-fighting well, and relates to the technical field of fire-fighting wells, a fire hydrant is arranged on a water conveying pipeline at the bottom in the fire-fighting well, and the fire hydrant is provided with a valve for opening and closing a water outlet channel of the fire hydrant and a connector I arranged at a water outlet of the fire hydrant; comprising an air injection pipe, one end of which is provided with a joint assembly which can be adaptively and detachably connected with a first connector; the other end of the gas injection pipe is provided with a gas inlet valve; an air outlet of the air compressor is connected with the air inlet valve through an air pipe, so that air is injected into the fire hydrant through the air injection pipe to discharge water stored in the fire hydrant. The fire-fighting water in the fire hydrant in the fire-fighting well can be effectively discharged, so that the fire hydrant of the fire-fighting well is prevented from being frozen and blocked at low temperature, normal water outlet of a pipe network during fire-fighting emergency is further ensured, and the fire-fighting water discharging device has the characteristics of convenience in operation and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting wells, in particular to an antifreeze device for a fire-fighting well. Background Art

[0002] Preventing firefighting pipes from freezing in winter is a major challenge for businesses. Measures taken to address this issue, including covering, adding insulation, filling with thermal bags, and installing heating tape, have yielded some success and played a significant role in ensuring fire safety. However, some firefighting wells, especially in extreme weather conditions, still face poor freezing protection, making it difficult to guarantee emergency water flow. To improve the freezing resistance of firefighting wells, we need to ensure water flow from the pipes during firefighting emergencies.

[0003] A Chinese patent (authorization publication number CN 110541434 B, authorization publication date 2024.02.06) discloses an antifreeze fire well suitable for cold regions or environments; its technical solution clearly states that through an opening component, personnel can open the valve outside the well body and connect the water outlet pipe and water inlet pipe without having to go down the well. After use, the remaining water in the water outlet pipe is drained through the drainage component, making it suitable for use in cold regions or in winter. However, the antifreeze fire well of this technical solution has a high production cost, and it can only drain the water remaining in the water outlet pipe at the rear end of the valve. The water in the water inlet pipe at the front end of the valve cannot be drained, and the risk of the pipeline being unable to discharge water due to low-temperature freezing still exists.

[0004] Therefore, how to provide a fire well anti-freezing device that can effectively drain the water in the fire hydrants in the fire well to avoid freezing and blockage of the fire hydrants in the fire well at low temperatures, thereby ensuring the normal water output of the pipeline network during fire emergencies, and having the characteristics of easy operation and low cost is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the present invention proposes a fire well antifreeze device, which aims to solve the technical problem that the above-mentioned traditional fire well antifreeze device cannot effectively drain the fire water in the fire well fire hydrant.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a fire well antifreeze device, wherein a fire hydrant is installed on the water supply pipeline at the bottom of the fire well, and the fire hydrant has a valve for opening and closing its water outlet channel and a connector installed at its water outlet; the device comprises:

[0008] An air injection pipe, one end of which is provided with a joint assembly which is adapted to be detachably connected to the connector; and the other end of which is provided with an air inlet valve;

[0009] An air compressor, wherein the air outlet of the air compressor is connected to the air inlet valve through an air pipe so as to inject air into the fire hydrant through the air injection pipe to discharge the water stored therein.

[0010] When using the fire well antifreeze device of the present invention, one holds the air injection pipe and connects the connector assembly at one end to the connector of the fire hydrant. The air inlet valve at one end is connected to the air outlet of the air compressor through the air pipe. First, the air inlet valve is opened to inject air into the air injection pipe for pressurization. Then, the valve of the fire hydrant is opened. Since the air injection pressure of the air compressor is greater than the water pressure of the water supply pipeline, air can be pressed into the fire hydrant through the air injection pipe to gradually empty the fire water in the water outlet channel of the fire hydrant until the air is pressed into the water supply pipeline. The fire water in the water supply pipeline can also be emptied for a section, thereby achieving the purpose of antifreeze and ensuring water supply in winter. After emptying a certain amount of fire water from the fire hydrant and water supply pipeline, the valve is first closed, then the air compressor is shut down, and the air inlet valve is closed to prevent the fire water from flowing back. The fire well antifreeze device of the present invention has good application effect, has promotion value, and can play a positive role in the fire safety emergency response work of enterprises.

[0011] As a further improvement of the above technical solution, the connector assembly includes a second connector and a quick connector assembly;

[0012] The quick connector assembly includes a quick-connect male head and a quick-connect female head; one end of the second connector can be threadedly connected and communicated with one end of the quick-connect female head, and the other end of the second connector can be adapted to be detachably connected and communicated with the first connector; one end of the quick-connect male head is fixedly connected and communicated with one end of the gas injection pipe, and the other end of the quick-connect male head is detachably adapted to be plugged and communicated with the other end of the quick-connect female head.

[0013] The beneficial effects of the above technical solution are: the connector 2 is designed to be adaptable to the detachable connection with the connector 1 of the fire hydrant, which is convenient for quick installation and use in existing fire wells; a quick connector assembly is set between the connector 2 and the gas injection pipe, and the connector 2 and the quick-connect female head can be pre-connected to the connector 1, that is, the quick-connect female head is used as the conversion interface of the connector 1. When in use, the gas injection pipe and the fire hydrant can be quickly installed and disconnected by simply plugging and unplugging the quick-connect male head, which is more convenient and efficient to use.

[0014] As a further improvement of the above technical solution, the connector 1 and the connector 2 are inward-locking fire-fighting connectors.

[0015] The beneficial effect of the above technical solution is that the buckle-type fire-fighting joint increases the versatility of the device.

[0016] As a further improvement of the above technical solution, the gas injection pipe is a metal pipe.

[0017] The beneficial effects of the above technical solution are: the gas injection pipe is made of a metal pipe, which has good durability and can be used as a handheld rod for plugging and unplugging operations.

[0018] As a further improvement of the above technical solution, the length of the gas injection pipe is 40cm-100cm.

[0019] The beneficial effect of the above technical solution is that the length of the gas injection pipe is 40cm-100cm, and when in use, there is no need to enter the fire well, and the gas injection pipe can be conveniently held and operated while standing on the ground.

[0020] As a further improvement of the above technical solution, the air pipe is a hose.

[0021] The beneficial effect of the above technical solution is that the air pipe adopts a hose, which can facilitate the connection arrangement of the air injection pipe and the air compressor.

[0022] As a further improvement of the above technical solution, the air supply pressure of the air compressor is greater than 0.3 MPa.

[0023] The beneficial effects of the above technical solution are: the daily emergency water outlet pressure at a height of 10 meters of the fire-fighting pipe network is 0.2-0.3 MPa, and the air supply pressure of the air compressor is greater than 0.3 MPa to ensure that the air is pressed into the fire hydrant and the fire-fighting pipe network connected to the fire hydrant.

[0024] As a further improvement of the above technical solution, a pump body placement hole is provided on the bottom wall of the fire pit corresponding to the side of the water supply pipeline and the fire hydrant.

[0025] The beneficial effects of the above technical solution are: rainwater entering the fire well or water leakage during use of the fire well will cause a large amount of water to accumulate inside the fire well; if the water accumulated in the fire well is not discharged in time, it will easily freeze in severe cold weather and cause freezing damage to the water supply pipeline and fire hydrant; the method for quickly draining the water accumulated in the fire well is to use a submersible pump for pumping, but the submersible pump needs to be immersed in water when used, otherwise it cannot drain all the water at the bottom of the well, and there will still be a risk of freezing; the pump body placement hole provided in the bottom wall of the fire well of the utility model can collect the water at the bottom of the well, and can also be used as a storage hole for placing the submersible pump, so as to facilitate the rapid removal of the water accumulated in the fire well.

[0026] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a fire well antifreeze device having the following advantages and beneficial effects:

[0027] 1. This utility model comprehensively analyzes and compares the daily emergency water outlet pressure of the fire pipe network at a height of 10 meters (0.2-0.3MPa) and the daily operating pressure of the air compressor (0.7-0.8MPa), and borrows the principle of fire quick connectors to develop a fire hydrant inflation quick connector. It can quickly and efficiently connect the air compressor to the fire hydrant through the air injection pipe, pressurize the compressed air into the fire hydrant and the fire pipe network through the fire hydrant interface, and empty a certain amount of fire water in the fire hydrant and the fire pipe network, thereby achieving the purpose of anti-freezing and ensuring water supply in winter.

[0028] 2. The utility model provides a pump placement hole on the bottom wall of the fire well, so that a submersible pump can be placed in the pump placement hole for pumping and drainage, which can quickly drain the water in the fire well and prevent the water in the well from freezing and damaging the water pipeline and fire hydrant, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] Figure 1 A three-dimensional schematic diagram of the overall structure of the fire-fighting well antifreeze device of the utility model;

[0031] Figure 2 A schematic diagram of the fire hydrant structure to which the utility model fire well antifreeze device is applicable;

[0032] Figure 3 Schematic diagram of the installation status of the second connector and the quick-connect female connector in the fire well antifreeze device of the utility model;

[0033] Figure 4 Schematic diagram of the connection state of the joint assembly, valve and gas injection pipe in the fire well antifreeze device of the utility model;

[0034] Figure 5 A schematic diagram of the structure of the quick connector assembly in the fire well antifreeze device of the utility model;

[0035] Figure 6 Schematic diagram of the structure of the quick-connect male connector in the fire-fighting well antifreeze device of the utility model.

[0036] In the figure: 1. Water supply pipeline; 2. Fire hydrant; 21. Valve; 22. Connector 1; 3. Air injection pipe; 31. Connector assembly; 311. Connector 2; 312. Quick connector assembly; 3121. Quick connector male connector; 3122. Quick connector female connector; 32. Air intake valve; 4. Air compressor; 41. Air pipe; 5. Fire well; 51. Pump body placement hole. DETAILED DESCRIPTION

[0037] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] According to the embodiment of the present utility model, Figures 1 to 6 As shown, a fire hydrant 2 is installed on the water supply pipeline 1 at the bottom of the fire well 5. The fire hydrant 2 has a valve 21 for opening and closing its water outlet channel and a connector 22 installed at its water outlet; the fire well antifreeze device includes an air injection pipe 3, a joint assembly 31, an air inlet valve 32, an air compressor 4 and an air pipe.

[0042] One end of the gas injection pipe 3 is equipped with a connector assembly 31 that can be detachably connected to the connector 22; the other end of the gas injection pipe 3 is threadedly connected to the outlet of the gas inlet valve 32;

[0043] The air outlet of the air compressor 4 is connected to the air inlet of the air inlet valve 32 through the air pipe 41, so as to inject air into the fire hydrant 2 through the air injection pipe 3, and use high-pressure air to discharge the water stored in the fire hydrant 2 into the water supply pipeline 1, thereby emptying the water stored in the fire hydrant 2.

[0044] When using the fire well antifreeze device of this embodiment, hold the air injection pipe 3 and connect the connector assembly 31 at one end to the connector 22 of the fire hydrant 2. Connect the air inlet valve 32 at one end of the pipe to the air outlet of the air compressor 4. First, open the air inlet valve 32 to inject air into the air injection pipe 3 to increase the pressure. Then, open the valve 21 of the fire hydrant 2. Since the air injection pressure of the air compressor 4 is greater than the water pressure of the water supply pipeline 1, air can be pressed into the fire hydrant 2 through the air injection pipe 3 to gradually empty the fire water in the water outlet channel of the fire hydrant 2 until the air is pressed into the water supply pipeline 1. The fire water in the water supply pipeline 1 can also be emptied for a period of time, thereby achieving the purpose of antifreeze and ensuring water supply in winter. After emptying a certain amount of fire water from the fire hydrant 2 and the water supply pipeline 1, first close the valve 21, then shut down the air compressor 4, and close the air inlet valve 32 to prevent the fire water from flowing back. The fire-fighting well antifreeze device of the utility model has good application effect, has promotion value, and can play a positive role in the fire safety emergency guarantee work of the enterprise.

[0045] It should be noted that: the fire hydrant 2 is fixed above the water supply pipeline 1, and the air is pressed in to first empty the fire water in the fire hydrant 2, and then enter the water supply pipeline 1; after the air is pressed into the water supply pipeline 1, even if the fire water in the water supply pipeline 1 is not completely emptied, an air area will be formed in the upper part of the inner cavity of the water supply pipeline 1 to ensure that the pipeline is unobstructed.

[0046] In some embodiments, when the fire well 5 is constructed, the layout height of the water supply pipeline 1 in the fire well 5 can be made higher than the height of the surrounding fire protection pipe network pipelines; the fire well antifreeze device of this embodiment can pressurize air into the water supply pipeline 1 to completely empty the fire water in the water supply pipeline 1, which can effectively solve the problem of freezing and blockage of the fire well.

[0047] In some embodiments, the connector assembly 31 includes a second connector 311 and a quick connector assembly 312;

[0048] The quick connector assembly 312 includes a quick-connect male head 3121 and a quick-connect female head 3122; one end of the second connector 311 can be threadedly connected to one end of the quick-connect female head 3122 and sealed, and the other end of the second connector 311 can be adapted to be detachably connected and sealed with the first connector 22; one end of the quick-connect male head 3121 is welded and fixed and sealedly connected to one end of the gas injection pipe 3, and the other end of the quick-connect male head 3121 is detachably adapted to be plugged in and sealed with the other end of the quick-connect female head 3122.

[0049] Connector 2 311 is designed to be adaptable to a detachable connection with connector 1 22 of fire hydrant 2, which is convenient for quick installation and use in existing fire wells; a quick connector assembly 312 is set between connector 2 311 and the gas injection pipe 3, and connector 2 311 and the quick-connect female head 3122 can be pre-connected to connector 1 22, that is, the quick-connect female head 3122 is used as a conversion interface of connector 1 22. When in use, the gas injection pipe 3 and the fire hydrant 2 can be quickly installed and disconnected by simply plugging and unplugging the quick-connect male head 3121, which is more convenient and efficient to use.

[0050] Specifically, the quick plug-in / out structure of the quick-connect male connector 3121 and the quick-connect female connector 3122 may be designed with reference to the existing fire-fighting quick card interface.

[0051] In some embodiments, connector 1 22 and connector 2 311 are interlocking firefighting connectors that can be adapted to be connected to each other.

[0052] The internal buckle firefighting joint is more common in firefighting products, increasing the versatility of the device. The specific structure of the internal buckle firefighting joint can be designed with reference to existing products, and the specific structure will not be repeated here.

[0053] Specifically, the end structure of the connector 1 22 and the connector 2 311 that are connected to each other can be referred to

[0054] In some embodiments, the gas injection tube 3 is a metal tube.

[0055] The gas injection pipe 3 is made of a metal pipe, specifically a galvanized pipe or a stainless steel pipe, which has good durability and can be used as a handheld rod for plugging and unplugging operations.

[0056] In some embodiments, the gas injection tube 3 has a length of 40 cm to 100 cm.

[0057] The length of the gas injection pipe 3 is 40cm-100cm. When in use, there is no need to enter the fire-fighting well. The gas injection pipe 3 can be conveniently held and operated while standing on the ground.

[0058] In some embodiments, the air tube is a flexible tube.

[0059] The air pipe adopts a soft tube, which can facilitate the connection arrangement of the air injection pipe 3 and the air compressor 4.

[0060] In some embodiments, the air supply pressure of the air compressor 4 is greater than 0.3 MPa.

[0061] The daily emergency water outlet pressure of the fire pipe network at a height of 10 meters is 0.2-0.3 MPa. The air supply pressure of the air compressor 4 is greater than 0.3 MPa to ensure that the air is pressed into the fire hydrant 2 and the fire pipe network connected to the fire hydrant 2.

[0062] Preferably, the air supply pressure of the air compressor 4 is 0.7-0.8 MPa, which improves the stability and efficiency of gas injection.

[0063] In some embodiments, a pump placement hole 51 is opened on the side of the bottom wall of the fire pit 5 corresponding to the water pipeline 1 and the fire hydrant 2.

[0064] Rainwater entering the fire well 5 or water leakage from the fire hydrant interface when the fire well 5 is in use will cause a large amount of water to accumulate inside the fire well 5; if the water in the fire well 5 is not discharged in time, it is easy to freeze in severe cold weather and cause freezing damage to the water supply pipeline 1 and the fire hydrant 2; a method to quickly drain the water from the fire well is to use a submersible pump for pumping, but the submersible pump needs to be immersed in water when used, otherwise it cannot drain all the water at the bottom of the well, and there will still be a risk of freezing; the pump body placement hole 51 provided on the bottom wall of the fire well 5 of the utility model can collect the water at the bottom of the well, and can also be used as a storage hole for placing the submersible pump, so as to facilitate the rapid removal of the water in the fire well 5.

[0065] In some embodiments, the fire well antifreeze device further includes a submersible pump and a drainage pipe connected to the submersible pump. When in use, the submersible pump is placed in the pump body placement hole 51 to drain the accumulated water in the fire well 5 to prevent freezing at low temperatures.

[0066] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fire well antifreeze device, wherein a fire hydrant (2) is installed on a water pipeline (1) at the bottom of a fire well (5), and the fire hydrant (2) has a valve (21) for opening and closing its water outlet channel and a connector (22) installed at its water outlet; characterized in that: include: An air injection pipe (3), one end of the air injection pipe (3) is equipped with a joint assembly (31) that can be adapted to be detachably connected to the connector (22); the other end of the air injection pipe (3) is equipped with an air inlet valve (32); An air compressor (4) has an air outlet connected to the air inlet valve (32) via an air pipe (41) so as to inject air into the fire hydrant (2) through the air injection pipe (3) to discharge water stored therein.

2. The fire well antifreeze device according to claim 1, characterized in that: The joint assembly (31) includes a second connector (311) and a quick joint assembly (312); The quick connector assembly (312) includes a quick-connect male head (3121) and a quick-connect female head (3122); one end of the second connector (311) can be threadedly connected to and communicated with one end of the quick-connect female head (3122), and the other end of the second connector (311) can be adapted to be detachably connected and communicated with the first connector (22); one end of the quick-connect male head (3121) is fixedly connected to and communicated with one end of the gas injection pipe (3), and the other end of the quick-connect male head (3121) is detachably adapted to be plugged and communicated with the other end of the quick-connect female head (3122).

3. The fire well antifreeze device according to claim 2, characterized in that: The connector 1 (22) and the connector 2 (311) are inner-buckle fire-fighting connectors.

4. The fire well antifreeze device according to claim 1, characterized in that: The gas injection pipe (3) is a metal pipe.

5. The fire well antifreeze device according to claim 1, characterized in that: The length of the gas injection pipe (3) is 40cm-100cm.

6. The fire well antifreeze device according to claim 4, characterized in that: The air pipe is a hose.

7. The fire-fighting well antifreeze device according to claim 6, characterized in that: The air supply pressure of the air compressor (4) is greater than 0.3 MPa.

8. The fire well antifreeze device according to claim 1, characterized in that: A pump body placement hole (51) is provided on the inner bottom wall of the fire pit (5) at the side corresponding to the water delivery pipeline (1) and the fire hydrant (2).

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