Natural water source fire-fighting water intake device and fire-fighting water supply system

Abstract

This utility model discloses a natural water source fire-fighting water intake device and fire-fighting water supply system, including a water intake device; a water intake port is provided on the side wall of the water intake device at the lowest effective water level of the natural water source; the water intake port is equipped with a normally open gate and a filter screen; the water intake device is equipped with an internal level transmitter and an external level transmitter; both the internal and external level transmitters are connected to a fault alarm device, and a fault alarm is triggered when the measured value of the external level transmitter is more than 5% higher than the measured value of the internal level transmitter; the water intake device is equipped with a water delivery pipe that runs through the side wall; one end of the water delivery pipe is connected to a fire pump set in the fire pump room, and the other end is connected to a water intake port located near the bottom of the water intake device; the water intake port is a cone-shaped structure with a larger diameter lower end fixed in the air near the bottom of the water intake device by a bracket. This utility model solves the problem of the inability to clean the grid at the head of the water intake and realizes early warning of insufficient water supply during the dry season.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a fire-fighting water intake device and fire-fighting water supply system using natural water sources. Background Technology

[0002] In remote stations where municipal water supply cannot reach, natural water sources are often used as the primary source of fire-fighting water. However, there are many problems in implementing existing natural water sources as fire-fighting water sources.

[0003] Existing technologies, such as the "Natural Water Source Firefighting Water Intake Facility" published in CN205839854 U, utilize submersible pumps with anti-clogging components to place the pumps directly into natural water tanks.

[0004] However, Article 5.1.6 of the current "Technical Specification for Fire Water Supply and Fire Hydrant System" GB50974-2014 clearly stipulates that fire pumps with electric motors installed in a dry manner should be selected. The use of submersible pumps placed in natural water sources is prohibited from the design specification level for reasons such as safety, reliability, and maintainability, and cannot pass fire protection acceptance in actual application.

[0005] Moreover, natural water sources often contain large particles of impurities such as aquatic plants, phytoplankton, and silt. When these impurities enter the fire pump, they can easily cause blockage and wear, reduce the service life of the pump, and even cause the pump to malfunction during a fire, delaying the opportunity to extinguish the fire.

[0006] Due to the lack of effective means to monitor the level of natural water sources, it is impossible to determine in a timely and accurate manner whether the water volume of natural water sources meets the needs of fire fighting. Especially during the dry season, if early warning cannot be given, there may be a risk of insufficient fire fighting water.

[0007] Existing water intake facilities still have shortcomings in terms of water access convenience, safety, and maintenance management. For example, it is difficult to quickly shut off the water intake when necessary, and it is difficult for maintenance personnel to safely enter the water intake device for maintenance.

[0008] Therefore, how to solve the problem of the inability to clean the grid at the water intake head, how to provide early warning of insufficient water volume during the dry season, and how to set up fire water intakes in areas of the station that are convenient for fire trucks to pass through have become technical problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0009] In view of the above-mentioned defects of the prior art, the present invention provides a natural water source fire-fighting water intake device and a fire-fighting water supply system. The purpose is to solve the problem that the grid at the water intake head cannot be cleaned, to realize early warning of insufficient water supply during the dry season, and to set the fire-fighting water intake in an area of ​​the station that is convenient for fire trucks to pass through.

[0010] To achieve the above objectives, this utility model discloses a natural water source fire-fighting water intake device, including a water intake device installed in a natural water source with its top flush with the water bank;

[0011] The water intake device is a hollow box structure, and the side wall is provided with a water intake port that is connected to the natural water source at the position corresponding to the lowest effective water level of the natural water source.

[0012] The water intake is equipped with a normally open gate and a filter screen;

[0013] The gate is controlled to open and close via a manual-electric integrated hoist.

[0014] The water intake device is equipped with an internal liquid level transmitter and an external liquid level transmitter located around the water intake.

[0015] Both the internal level transmitter and the external level transmitter are connected to the fault alarm device.

[0016] The fault alarm device will trigger a fault alarm when the measured value of the external level transmitter is more than 5% higher than the measured value of the internal level transmitter.

[0017] The water intake device is equipped with a water delivery pipe that penetrates the side wall;

[0018] The water supply pipe is connected to the fire pump set in the fire pump room at one end outside the water intake device, and to the water intake port located near the bottom of the water intake device at the other end.

[0019] The water intake is a cone shape with the head removed and the axis is set vertically. The upper end with a smaller diameter is connected to the water supply pipe, and the lower end with a larger diameter is fixed in the air near the bottom of the water intake device by a bracket.

[0020] Preferably, the water intake device is a closed cylindrical structure made of fiberglass, with a maintenance manhole and ventilation pipe at the top;

[0021] Below the maintenance manhole is a ladder leading to the bottom of the water intake device;

[0022] The filter screen is a detachable stainless steel mesh.

[0023] More preferably, when the water intake device needs maintenance, the gate is closed, a submersible pump is installed through the maintenance manhole, and the water in the water intake device is drained by the submersible pump.

[0024] Preferably, the fault alarm device is preset with a low water level alarm value. When the measured value of the external liquid level transmitter and the measured value of the internal liquid level transmitter are both lower than the low water level alarm value, a low water level alarm is triggered.

[0025] Preferably, the lower end of the larger diameter water intake port is more than 700 mm away from the bottom of the water intake device.

[0026] Preferably, the fire pump room is underground or semi-underground.

[0027] Preferably, the fire pump set includes a main working pump and a standby pump connected in parallel.

[0028] Preferably, a Y-type filter is installed between the fire pump unit and the water supply pipe.

[0029] Preferably, the water intake device includes two water supply pipes; each of the two water supply pipes has a water intake port at one end inside the water intake device.

[0030] The two water pipes are connected at one end outside the water intake device by a connecting pipe equipped with a valve.

[0031] This utility model also provides a fire-fighting water supply system, including the above-mentioned natural water source fire-fighting water intake device.

[0032] The beneficial effects of this utility model are:

[0033] The application of this utility model ensures the reliability, convenience, and safety of natural water sources when used as fire-fighting water sources, and enables effective maintenance and management, thus guaranteeing the fire safety of stations in areas not covered by municipal water supply.

[0034] This utility model effectively prevents impurities from damaging the fire pump through dual filtration of the grid mesh and Y-type filter, ensuring the normal operation of the fire pump; the level transmitter monitors the natural water source level in real time, and combined with the low water season alarm level setting, it can promptly grasp the water source quantity, ensuring a sufficient supply of fire water in the event of a fire, and greatly improving the reliability of the fire water source.

[0035] This utility model's water intake device meets the access requirements of maintenance personnel, bringing convenience to the inspection and maintenance of fire-fighting water intake pipelines. The water intake device uses a water inlet, with a gate outside the inlet and a grid mesh inside, solving the problem of the grid mesh at the water intake head being difficult to clean.

[0036] This utility model protects the water intake with a water intake device, and the fire water intake can be set in an area of ​​the station that is convenient for fire trucks to pass through, through a pipeline connection.

[0037] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0038] Figure 1This diagram shows a longitudinal cross-sectional view of the water intake device in one embodiment of the present invention.

[0039] Figure 2 This diagram shows the upper end face structure of the water intake device in one embodiment of the present invention.

[0040] Figure 3 This diagram shows a gate that is opened and closed by a combined manual and electric gate opener in one embodiment of the present invention.

[0041] Figure 4 This diagram shows a structural schematic of a fire-fighting water supply system according to one embodiment of the present invention. Detailed Implementation

[0042] Example: Figures 1 to 3 As shown, a natural water source fire-fighting water intake device includes a water intake device 1 installed in the natural water source with its top flush with the water bank;

[0043] The water intake device 1 is a hollow box structure, and the side wall is provided with a water intake port connected to the natural water source at the position corresponding to the lowest effective water level of the natural water source.

[0044] The water intake is equipped with a normally open gate 3 and a filter screen 4;

[0045] Gate 3 is controlled to open and close by a manual-electric integrated hoist 10;

[0046] The water intake device 1 is equipped with an internal liquid level transmitter 11, and an external liquid level transmitter is located around the water intake.

[0047] Both the internal level transmitter 11 and the external level transmitter are connected to the fault alarm device.

[0048] The fault alarm device will trigger a fault alarm when the measured value of the external level transmitter is more than 5% higher than the measured value of the internal level transmitter 11.

[0049] The water intake device 1 is equipped with a water delivery pipe 7 that runs through the side wall;

[0050] One end of the water supply pipe 7 located outside the water intake device 1 is connected to the fire pump set inside the fire pump room, and the other end located inside the water intake device 1 is connected to the water intake port 6 located near the bottom of the water intake device 1.

[0051] The water intake port 6 is a cone shape with the head removed and the axis is set vertically. The upper end with a smaller diameter is connected to the water supply pipe 7, and the lower end with a larger diameter is fixed in the air near the bottom of the water intake device 1 by the bracket 5.

[0052] In practical applications, when using water intake device 1 to draw water, it is essential to ensure that the atmospheric pressure inside and outside the water intake device 1 is balanced.

[0053] The minimum effective water level of a natural water source is reasonably determined based on its normal water level, water level during the wet season, water level during the dry season, and the area of ​​the pond. This is an existing technology and is unrelated to this utility model.

[0054] When in use, the water from the natural water source enters the water intake device 1 through the frequently opened gate 3, where branches, aquatic plants, and garbage are filtered out at the filter screen 4.

[0055] When the water intake device 1 needs maintenance, the gate 3 is closed by the hand-operated electric gate opener 10.

[0056] The water intake device 1 is equipped with an internal liquid level transmitter 11 and an external liquid level transmitter located around the water intake. If the external liquid level is higher than the internal liquid level, a fault alarm will be triggered to determine that the water inlet is blocked.

[0057] The lower end of the larger diameter water inlet 6 is fixed in the air near the bottom of the water intake device 1 by the bracket 5, which can ensure smooth water intake and prevent swirling disturbance.

[0058] This utility model, taking into account water level conditions, sets up an underground or semi-underground fire pump room. The pump room has two horizontal centrifugal fire pumps, one for use and one for standby. The pipes in front of the pumps are connected to the water intake pipes of the water intake device. A Y-type filter needs to be installed on the pipes. A pipe connects the two water intake pipes, and a valve is installed in the middle to facilitate replacement of each other if one water pipe fails.

[0059] In some embodiments, the water intake device 1 is a closed cylindrical structure made of fiberglass, with a maintenance manhole 2 and a ventilation pipe 9 at the top;

[0060] Below the maintenance manhole 2 is a ladder 8 leading to the bottom of the water intake device 1;

[0061] Filter screen 4 is a removable stainless steel mesh.

[0062] In practical applications, a detachable stainless steel mesh is used as the filter screen, which can be disassembled for cleaning or replacement periodically.

[0063] In some embodiments, when the water intake device 1 needs maintenance, the gate 3 is closed, a submersible pump is inserted through the maintenance manhole 2, and the water in the water intake device 1 is drained by the submersible pump.

[0064] In practical applications, after the water in the water intake device 1 is pumped out, maintenance personnel enter the water intake device 1 through the ladder 8.

[0065] In some embodiments, the fault alarm device is preset with a low water level alarm value. When the measured value of both the external level transmitter and the internal level transmitter 11 is lower than the low water level alarm value, a low water level alarm is triggered.

[0066] In some embodiments, the lower end of the larger diameter water intake port 6 is more than 700 mm away from the bottom of the water intake device 1.

[0067] In some embodiments, the fire pump room is underground or semi-underground.

[0068] In some embodiments, the fire pump set includes a main working pump and a standby pump connected in parallel.

[0069] In some embodiments, a Y-type filter is installed between the fire pump unit and the water supply pipe 7.

[0070] In some embodiments, the water intake device 1 includes two water supply pipes 7; each of the two water supply pipes 7 located inside the water intake device 1 has a water intake port 6.

[0071] The two water pipes 7 are connected at one end outside the water intake device 1 by a connecting pipe equipped with a valve.

[0072] In practical applications, after adopting the above technical means, when one water pipe 7 malfunctions, the valve can be opened so that the two water pipes 7 can share a single water inlet 6.

[0073] like Figure 4 As shown, this utility model also provides a fire-fighting water supply system, including the above-mentioned natural water source fire-fighting water intake device.

[0074] In practical applications, the water pond as a natural water source, the water intake device 1, the underground or semi-underground fire pump room, and the water supply pipe 7 together constitute the fire water supply system.

[0075] This invention solves the problem that fire trucks have difficulty approaching ponds to obtain water by setting up a water intake device 1 in the pond and then supplying the water to fire trucks located in easily accessible places such as stations through a water supply pipe 7.

[0076] This utility model uses a water intake port 6 for water intake, with a gate 3 outside the intake port 6 and a filter screen 4 inside, effectively separating the water intake facility from the natural water source. This allows personnel to enter the water intake device for inspection and maintenance. The filter screen is located inside the water intake device, solving the problem of the filter screen at the water intake head being difficult to clean.

[0077] This invention utilizes the principle of communicating vessels to monitor the water level of the natural water source by using an internal level transmitter 11 and an external level transmitter inside and outside the water intake device 1 when the gate 3 is open, thereby achieving early warning of insufficient water volume during the dry season.

[0078] Under the protection of water intake device 1, fire water intakes can be set up in areas such as stations where fire trucks can pass through, through pipeline connection.

[0079] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A natural water source fire-fighting water intake device; characterized in that, Including a water intake device (1) set up in a natural water source with its top flush with the water bank; The water intake device (1) is a hollow box structure, and the side wall is provided with a water intake port connected to the natural water source at the position corresponding to the lowest effective water level of the natural water source. The water intake is equipped with a normally open gate (3) and a filter screen (4); The gate (3) is controlled to open and close by a manual-electric integrated hoist (10); The water intake device (1) is equipped with an internal liquid level transmitter (11) and an external liquid level transmitter located around the water intake. Both the internal level transmitter (11) and the external level transmitter are connected to the fault alarm device. The fault alarm device will trigger a fault alarm when the measured value of the external level transmitter is more than 5% higher than the measured value of the internal level transmitter (11). The water intake device (1) is equipped with a water delivery pipe (7) that penetrates the side wall; The water supply pipe (7) is connected to the fire pump group in the fire pump room at one end outside the water intake device (1), and the water intake pipe (7) is connected to the water intake port (6) located near the bottom of the water intake device (1) at the other end. The water inlet (6) is a cone shape with the head removed and the axis is set vertically. The upper end with a smaller diameter is connected to the water supply pipe (7), and the lower end with a larger diameter is fixed in the air near the bottom of the water intake device (1) by a bracket (5).

2. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The water intake device (1) is a closed cylindrical structure made of fiberglass, with a maintenance manhole (2) and a ventilation pipe (9) on the top; Below the maintenance manhole (2) is a ladder (8) leading to the bottom of the water intake device (1); The filter screen (4) is a detachable stainless steel mesh.

3. The natural water source fire-fighting water intake device as described in claim 2, characterized in that, When the water intake device (1) needs maintenance, the gate (3) is closed, and a submersible pump is installed through the maintenance manhole (2) to drain the water in the water intake device (1).

4. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The fault alarm device is preset with a low water level alarm value. When the measured value of the external liquid level transmitter and the measured value of the internal liquid level transmitter (11) are both lower than the low water level alarm value, a low water level alarm is triggered.

5. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The lower end of the larger diameter water inlet (6) is more than 700 mm away from the bottom of the water intake device (1).

6. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The fire pump room is underground or semi-underground.

7. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The fire pump set includes a main working pump and a standby pump connected in parallel.

8. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, A Y-type filter is installed between the fire pump set and the water supply pipe (7).

9. The natural water source fire-fighting water intake device as described in claim 1, characterized in that, The water intake device (1) includes two water supply pipes (7); each of the two water supply pipes (7) has a water intake port (6) located at one end inside the water intake device (1); The two water pipes (7) are connected at one end outside the water intake device (1) by a connecting pipe equipped with a valve.

10. A fire-fighting water supply system, characterized in that, Includes a natural water source fire-fighting water intake device as described in any one of claims 1 to 9.

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