CN219539304U

CN219539304U - Low-pressure fine water mist fire extinguishing device and fire extinguishing system

Info

Publication number: CN219539304U
Application number: CN202222939813.XU
Authority: CN
Inventors: 罗洁; 孙健; 曹竞飞; 顾辰辰; 孙亚丽; 韩全生
Original assignee: Shanghai Qiyao Heavy Industry Co ltd; 711th Research Institute of CSIC
Current assignee: Shanghai Qiyao Heavy Industry Co ltd; 711th Research Institute of CSIC
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-08-18
Anticipated expiration: 2032-11-04

Abstract

The utility model provides a low-pressure water mist fire extinguishing device and a fire extinguishing system, wherein the fire extinguishing device comprises a support frame, a centrifugal pump, a water pump control box, a conveying pipeline and a purging pipeline, wherein the centrifugal pump, the water pump control box, the conveying pipeline and the purging pipeline are arranged on the support frame. The output end of the centrifugal pump is connected with a water outlet pipeline, and the water outlet pipeline is provided with a discharge valve. The water pump control box is internally provided with a control button for starting and stopping the centrifugal pump, the inlet of the conveying pipeline is communicated to the water outlet pipeline, and the outlet of the conveying pipeline is provided with a first control valve. One end of the purging pipeline is communicated to the water outlet pipeline, the other end of the purging pipeline is provided with a one-way valve and a second control valve, the second control valve is positioned at the inlet side of the one-way valve, and the one-way valve is positioned between the second control valve and the water outlet pipeline. The accumulated liquid in the conveying pipeline can be discharged by blowing gas into the conveying pipeline through the purging pipeline. The fire extinguishing system adopting the low-pressure water mist fire extinguishing device can also clean the water mist nozzle through the purging pipeline to prevent the nozzle from being blocked.

Description

Low-pressure fine water mist fire extinguishing device and fire extinguishing system

Technical Field

The present utility model relates generally to the technical field of fire extinguishing systems, and more particularly to a low pressure fine mist fire extinguishing apparatus and fire extinguishing system.

Background

Once a fire disaster occurs on a ship, the fire disaster spreads rapidly, marine accidents are easily caused, the safety of marine personnel and property is threatened, and marine environmental pollution is caused. The traditional fire extinguishing technology has the defects of high water consumption, large water stain loss, low cooling speed, large smoke concentration, no contribution to safe evacuation of personnel and the like, so that the traditional fire extinguishing technology is not suitable for being applied to fire extinguishment of a ship cabin.

The existing ship fire extinguishing system is complex in pipeline, accumulated liquid is often left in the pipeline after the use, and the pipeline is easy to damage, so that the fire extinguishing system is invalid. And when not used for a long time, the nozzle at the tail end of the pipeline is also easy to be blocked by dust or sundries, so that the use effect is influenced and even the fire extinguishing system is invalid.

Accordingly, there is a need to provide a low pressure fine mist fire extinguishing apparatus and fire extinguishing system to at least partially solve the above-mentioned problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, a first aspect of the present utility model provides a low pressure water mist fire extinguishing device, the fire extinguishing device comprising:

a support frame;

the centrifugal pump is arranged on the supporting frame, the output end of the centrifugal pump is connected with a water outlet pipeline, and the water outlet pipeline is provided with a discharge valve;

the water pump control box is arranged on the supporting frame, and a control button for starting and stopping the centrifugal pump is arranged in the water pump control box;

the conveying pipeline is arranged to the supporting frame, an inlet of the conveying pipeline is communicated with the water outlet pipeline, and a first control valve is arranged at an outlet of the conveying pipeline; and

the purging pipeline, purge the pipeline set up to the support frame, purge the one end of pipeline to the outlet pipe way, purge the other end of pipeline and be provided with check valve and second control valve, the second control valve is located the import side of check valve, the check valve is located the second control valve with outlet pipe way is between.

Optionally, the water outlet pipeline is further provided with a stop check valve, a pressure switch and a pressure gauge, wherein both sides of the stop check valve are provided with the bleeder valve, and the pressure gauge is positioned between the centrifugal pump and the stop check valve.

Optionally, the delivery conduit comprises, in combination,

the split-flow main pipe extends along the vertical direction, and the lower end of the split-flow main pipe is communicated with the water outlet pipeline; and

at least two partition branch pipes, wherein the partition branch pipes are communicated to the split main pipe, and each partition branch pipe is provided with the first control valve;

wherein the purge conduit is connected to the split main.

Optionally, the support frame comprises a base and a frame arranged to the base, an accommodating space is formed between the frame and the base, the split main pipe, the partition branch pipe and the purge pipe are located in the frame, and the centrifugal pump is fixed to the base and located outside the frame;

the frame includes support post and supporting beam, water pump control box fixed connection to the support post just is located outside the frame, subregion branch pipe with the purge pipe is fixed to respectively through the connecting piece the supporting beam.

Optionally, the input end of the centrifugal pump is connected with a water inlet pipeline, and the water inlet pipeline is provided with a filter; and/or

The water inlet pipeline, the water outlet pipeline, the conveying pipeline and the purging pipeline are galvanized pipes or stainless steel pipes.

Optionally, the first control valve is a solenoid valve with a manual function; and/or

The second control valve is a ball valve.

A second aspect of the present utility model provides a low pressure fine mist fire suppression system, the fire suppression system comprising:

the fire extinguishing apparatus according to the first aspect of the present utility model;

the water mist nozzle is communicated to the first control valve through a pipeline; and

the main control box is internally provided with a controller, the controller is electrically connected to the control button, and the controller is electrically connected to the first control valve.

Optionally, the fire extinguishing system further comprises a fire alarm device, wherein the fire alarm device comprises a smoke detector, a flame detector and an audible and visual alarm;

wherein the smoke detector, the flame detector and the audible and visual alarm are electrically connected to the controller, respectively.

Optionally, a fire alarm panel is further disposed in the main control box, and the fire alarm panel is electrically connected to the controller.

Optionally, the fire suppression system further comprises a repeating panel, a remote control panel and a local control panel, wherein the repeating panel, the remote control panel and the local control panel are respectively electrically connected to the controller.

The utility model provides a low-pressure fine water mist fire extinguishing device which comprises a support frame, a centrifugal pump, a water pump control box, a conveying pipeline and a purging pipeline, wherein the centrifugal pump, the water pump control box, the conveying pipeline and the purging pipeline are arranged on the support frame. The output end of the centrifugal pump is connected with a water outlet pipeline, and the water outlet pipeline is provided with a discharge valve. The water pump control box is internally provided with a control button for starting and stopping the centrifugal pump, the inlet of the conveying pipeline is communicated to the water outlet pipeline, and the outlet of the conveying pipeline is provided with a first control valve. One end of the purging pipeline is communicated to the water outlet pipeline, the other end of the purging pipeline is provided with a one-way valve and a second control valve, the second control valve is positioned at the inlet side of the one-way valve, and the one-way valve is positioned between the second control valve and the water outlet pipeline. The second control valve is used for being connected to the air source device, so that gas is blown into the conveying pipeline through the purging pipeline, and accumulated liquid in the conveying pipeline can be discharged. The low-pressure water mist fire extinguishing system adopting the low-pressure water mist fire extinguishing device can clean the water mist nozzle through the purging pipeline to prevent the nozzle from being blocked.

Drawings

The following drawings of embodiments of the present utility model are included as part of the utility model. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

fig. 1 is a schematic perspective view of a low pressure fine water mist fire extinguishing apparatus according to a preferred embodiment of the present utility model;

FIG. 2 is a left side schematic view of FIG. 1 showing a centrifugal pump, a water outlet line and a water pump control box;

FIG. 3 is a schematic front view of FIG. 1 showing the side sill and the stopper;

FIG. 4 is a schematic top view of the low pressure fine mist fire extinguishing apparatus according to FIG. 1; and

fig. 5 is a flowchart of the operation of the low pressure fine mist fire suppression system according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

100: fire extinguishing apparatus 110: supporting frame

111: base 111A: connecting device

112: frame 112A: support column

112B: support beam 113: lifting ring

120: centrifugal pump 121: water inlet pipeline

122: outlet pipe 123: filter device

124: relief valve 125: pressure gauge

126: check valve 127: pressure switch

130: water pump control box 140: conveying pipeline

141: split main pipe 142: partition branch pipe

143: first control valve 150: purging pipeline

151: second control valve D: in the vertical direction

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that embodiments of the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art. The preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to the detailed description, and should not be construed as limited to the embodiments set forth herein.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model, as the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like are used herein for illustrative purposes only and are not limiting.

Ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

Hereinafter, specific embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present utility model and not limit the present utility model.

The utility model provides a low-pressure water mist fire extinguishing device 100 and a low-pressure water mist fire extinguishing system with the fire extinguishing device 100. For the convenience of understanding the scheme, the structure of the fire extinguishing apparatus 100 will be described with reference to fig. 1 to 5.

Referring to fig. 1 to 5, the fire extinguishing apparatus 100 includes a support frame 110, a centrifugal pump 120, a water pump control box 130, a delivery pipe 140, and a purge pipe 150. Wherein the centrifugal pump 120, the water pump control box 130, the delivery pipe 140 and the purge pipe 150 are all provided to the support frame 110. A control button for starting and stopping the centrifugal pump 120 is provided in the water pump control box 130.

Referring to fig. 1 and 2, an output of the centrifugal pump 120 is connected to an outlet conduit 122. The outlet conduit 122 is provided with a drain valve 124, the drain valve 124 being operable to drain water from within the outlet conduit 122 to prevent corrosion of the outlet conduit 122.

Referring to fig. 3, an inlet of the transfer duct 140 is connected to the water outlet duct 122, and an outlet of the transfer duct 140 is provided with a first control valve 143. One end of the purge pipe 150 is connected to the water outlet pipe 122, and the other end of the purge pipe 150 is provided with a check valve (not shown) and a second control valve 151 (see fig. 3 and 4). Wherein the check valve is located between the second control valve 151 and the water outlet conduit 122, the second control valve 151 being located at the inlet side of the check valve.

Wherein, the second control valve 151 arranged on the purge pipe 150 is used for connecting with an air source device, and the one-way valve arranged on the purge pipe 150 can be used for preventing the fluid in the conveying pipe 140 from flowing to the direction of the second control valve 151.

The fire extinguishing apparatus 100 of the present utility model operates on the principle that: when the fire extinguishing operation is not performed (for example, the fire extinguishing operation is completed or the operation is interrupted), the second control valve 151 may be connected to an air source device to purge the fire extinguishing device 100, discharge the accumulated water in the fire extinguishing device 100, and prevent the fire extinguishing device 100 from being corroded due to the accumulated water inside. For example, the second control valve 151 may be connected to the output end of the air compressor, compressed air is blown into the purge pipe 150 by the air compressor, and the residual liquid in the conveying pipe 140 is discharged, and meanwhile, the accumulated water in the water outlet pipe 122 may be purged to the discharge valve 124 to be discharged, so as to keep the pipe of the fire extinguishing apparatus 100 clean.

In the embodiment shown in fig. 2, the water outlet conduit 122 is further provided with a shut-off check valve 126, a pressure switch 127 and a pressure gauge 125. A pressure gauge 125 is located between the centrifugal pump 120 and a shut-off check valve 126. A pressure switch 127 is disposed between the shut-off check valve 126 and the delivery conduit 140. It will be appreciated that during the purging operation, the first control valve 143, the second control valve 151, the stop check valve 126 and the bleed valve 124 are all open, ensuring smooth flow of compressed air.

The shut-off check valve 126 has both functions of a shut-off valve and a check valve, and can control the opening/closing of the water outlet pipe 122 and prevent the backflow of the liquid in the delivery pipe 140. Referring to fig. 2, a relief valve 124 is provided on both sides of the check valve 126 to ensure that any residual liquid in the water outlet conduit 122 on both sides of the check valve 126 can be drained through the relief valve 124.

Referring to fig. 2, 3 and 4, in the present embodiment, the transfer pipe 140 includes a split main pipe 141 and a partition branch pipe 142. Wherein the lower end of the split main pipe 141 is connected to the water outlet pipe 122, and the purge pipe 150 is connected to the split main pipe 141 (see fig. 2). The partition branch pipe 142 communicates to the split main pipe 141 (see fig. 3). Specifically, the split main pipe 141 extends in the vertical direction D, and the plurality of partition branch pipes 142 are connected to the split main pipe 141 at intervals. Each partition branch pipe 142 is provided with a first control valve 143. It will be appreciated that each of the partition branch pipes 142 is for communicating with the water mist nozzle of the corresponding protection zone through a pipe, and the first control valve 143 is for controlling the opening/closing of the corresponding partition branch pipe 142.

In this embodiment, the end of the water outlet pipe 122 is connected to a main split pipe 141, and the main split pipe 141 is connected to a purge pipe 150 and 9 branch partition pipes 142. It is understood that the number of the split main pipes 141, the number of the partition branches 142, and the size of each partition branch 142 can be flexibly designed according to actual circumstances by those skilled in the art.

Referring to fig. 1 to 4, the support bracket 110 includes a base 111 and a frame 112 provided to the base 111. An accommodation space is formed between the frame 112 and the base 111, wherein the split main pipe 141, the partition branch pipe 142, and the purge pipe 150 are located inside the frame 112, and the centrifugal pump 120 is fixed to the base 111 and located outside the frame 112 (accommodation space). This arrangement separates the different functional parts, and is more reasonable, so that interference between the centrifugal pump 120 and the delivery pipe 140 can be avoided, and a user can operate the different functional parts conveniently.

The frame 112 includes support posts 112A and support beams 112B. The water pump control box 130 is fixedly connected to the support column 112A and is located outside the frame 112, so that the operation of a user is facilitated. The partition branch 142 and the purge pipe 150 are fixed to the support beam 112B by connectors, respectively, so that vibration of the partition branch 142 can be reduced during use of the fire extinguishing apparatus 100. Specifically, the connecting piece is a U-shaped bolt. The fire extinguishing apparatus 100 of the present utility model optimizes the spatial layout positions of the pipes, the centrifugal pump 120, and the water pump control box 130 by the support frame 110.

Preferably, a hanging ring 113 is further provided on the top of the frame 112 (the top end of the supporting upright 112A), so as to facilitate the integral hanging to the installation site after the fire extinguishing apparatus 100 is assembled. Similarly, a connecting device 111A is further arranged on the outer side of the base 111, so that the fire extinguishing device 100 and the mounting platform are conveniently fixed, and vibration of the fire extinguishing device 100 in the working process is reduced.

Referring to fig. 4, an input end of the centrifugal pump 120 is connected with a water inlet pipe 121, and the water inlet pipe 121 is provided with a filter 123, and the filter 123 is used for filtering liquid input into the centrifugal pump 120.

In this embodiment, the materials of the water inlet pipe 121, the water outlet pipe 122, the delivery pipe 140 and the purge pipe 150 may be galvanized or stainless steel pipes. Preferably, stainless steel pipes are used, which can better adapt to severe environments, and the fire extinguishing apparatus 100 using the stainless steel pipes has a longer service life.

Preferably, in the present embodiment, the first control valve 143 is a solenoid valve with a manual function, which can be opened or closed manually or controlled by an electric signal. The second control valve 151 is a ball valve. The ball valve may control the flow of the blown gas.

A low pressure fine mist fire extinguishing system according to the present utility model includes a fire extinguishing device 100, a fine mist nozzle (not shown), and a main control box. Wherein the fine mist nozzle is communicated to the first control valve 143 through a pipe. A controller is provided in the main control box, the controller is electrically connected to the control button, and the controller is electrically connected to the first control valve 143.

The water mist nozzle is used for being arranged in each protection area. It will be appreciated that the fire suppression system of the present utility model may control the activation/deactivation of the centrifugal pump 120 and the opening/closing of the first control valve 143 via the master control box. When the centrifugal pump 120 is controlled to be opened and the first control valve 143 is controlled to be opened by the main control box, water in the partition branch pipe 142 can be transported to the fine water mist nozzle at the end through the pipe, so that a fire extinguishing operation (fine water mist spraying) is performed for the corresponding protection area. Those skilled in the art will appreciate that the controller may be a single chip microcomputer, a chip, or the like.

Because the purging pipeline 150 is arranged in the fire extinguishing device 100, not only can the accumulated water in the conveying pipeline 140 be discharged, but also the purging pipeline 150 can be used for dredging the water mist nozzle when the fire extinguishing system is not used, so that the water mist nozzle is prevented from being blocked by dust or sundries when the fire extinguishing system is not used for a long time (the fire extinguishing system is in a standby state), and the fire extinguishing system is kept in a healthy standby state.

In connection with fig. 5, the fire suppression system may further include a fire alarm device in this embodiment. The fire alarm device comprises a smoke detector, a flame detector and an audible and visual alarm. The smoke detector, the flame detector and the audible and visual alarm are respectively and electrically connected to a controller positioned in the main control box.

It will be appreciated by those skilled in the art that each of the protected areas is provided with a smoke detector, flame detector and audible and visual alarm. For monitoring the situation (whether a fire has occurred) in the corresponding area.

Considering that the problem that the communication connection between the fire alarm panel and the main control box is easy to fail in the related art, the fire is not timely processed, and serious safety accidents are caused, it is preferable that the fire alarm panel is integrally arranged in the main control box and electrically connected to the controller. The fire alarm panel can timely and reliably transmit the acquired monitoring information of the fire alarm device to the main control box.

Preferably, the fire suppression system further comprises a representational panel, a remote control panel and a local control panel, wherein the representational panel is electrically connected with the main control box. The display panel, the remote control panel and the local control panel are respectively and electrically connected to the controller. The user may control the fire suppression system through the operation, remote control panel and local control panel, respectively. For example, when the fire extinguishing system of the utility model is applied to a ship, the display panel can be arranged to the cabin of the ship, so that a ship driver can know the fire safety of all places on the ship in time. The local control panel of each protection area can be arranged in the area, and personnel nearby the area can operate and control the opening of the electromagnetic valves on the water pump and the corresponding partition branch pipes through the local control panel to start the fire extinguishing operation of the protection area in case of fire.

Preferably, in order to monitor the operation of the fire extinguishing system and ensure the reliable and stable operation of the fire extinguishing system, the fire extinguishing system of the present utility model may further be provided with a low liquid level detection device, a low pressure detection device, a water pump failure detection device, a light failure detection device, etc. (not shown in the drawings) respectively for the problems of low liquid level, low pressure, water pump failure, light failure, etc. that may occur. Once the fault of the fire extinguishing system is detected, the controller controls the audible and visual alarm to give out audible and visual alarm, the warning lamp is on, the buzzer sounds and the like, so that the fire extinguishing system is prevented from operating in an abnormal state.

In the embodiment shown in fig. 5, three modes of operation of the fire suppression system of the present utility model are shown:

1. automatic control:

when two detectors (for example, a smoke detector and a flame detector) in the fire alarm device detect fire signals at the same time and transmit information to the controller, the controller can control the audible and visual alarm to send out audible and visual alarms to remind a user. At the same time, the controller may activate the fire suppression system, in other words, the controller is configured to activate the fire suppression system after receiving fire signals from two detectors in the same protection area at the same time. Specifically, the controller controls the region solenoid valve (first control valve 143 corresponding to the protection region) of the corresponding protection region to be opened and controls the centrifugal pump 120 to be opened, so as to open the fire extinguishing system and perform the water mist spraying fire extinguishing operation.

2. Electric manual control:

when a person finds a fire, the fire suppression system may be activated by operating any one of the remote control panel, the local control panel, and the main control box.

3. Mechanical emergency control:

the first control valve 143 is provided as a solenoid valve with a manual function so that, in the event of failure of the automatic control, a user can activate the fire suppression system by manually activating the zone solenoid valve and the centrifugal pump 120.

The low-pressure water mist fire extinguishing device 100 and the fire extinguishing system are suitable for being applied to a ship cabin, and are particularly suitable for fire protection of equipment such as an internal combustion engine of a ship main propulsion device, internal combustion engines of various driving power sources (such as a generator, an air compressor, a hydraulic pump and the like), boilers (including steam and hot oil boilers), incinerators, fuel type inert gas generators, fuel oil devices (such as a hot oil heater and a heated fuel oil distributor) and the like. The water mist spray can effectively absorb and block the radiant heat of a fire source because of small diameter of mist drops, so that the safe evacuation of personnel and the approach of fire extinguishing personnel to a fire scene for rescuing can be helped, the radiant heat can be effectively resisted, the secondary fire can be effectively ignited, and the spread of the fire can be effectively prevented.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims

1. A low pressure fine mist fire extinguishing apparatus, characterized in that the fire extinguishing apparatus comprises:

a support frame;

2. The fire extinguishing apparatus according to claim 1, wherein the water outlet pipe is further provided with a stop check valve, a pressure switch and a pressure gauge, both sides of the stop check valve being provided with the relief valve, the pressure gauge being located between the centrifugal pump and the stop check valve.

3. The fire extinguishing apparatus according to claim 2, wherein the delivery pipe comprises,

wherein the purge conduit is connected to the split main.

4. A fire extinguishing apparatus according to claim 3, wherein the support frame includes a base and a frame provided to the base, an accommodation space is formed between the frame and the base, the dividing main pipe, the partition branch pipe, and the purge pipe are located inside the frame, and the centrifugal pump is fixed to the base and located outside the frame;

5. The fire extinguishing apparatus according to claim 4, wherein an input end of the centrifugal pump is connected with a water inlet pipe, and the water inlet pipe is provided with a filter; and/or

6. The fire suppression apparatus of claim 1, wherein the first control valve is a solenoid valve with manual function; and/or

The second control valve is a ball valve.

7. A low pressure fine mist fire suppression system, the fire suppression system comprising:

fire extinguishing apparatus according to any one of claims 1 to 6;

8. The fire suppression system of claim 7, further comprising a fire alarm device including a smoke detector, a flame detector, and an audible and visual alarm;

9. The fire suppression system of claim 8, wherein a fire alarm panel is also disposed within the main control box, the fire alarm panel being electrically connected to the controller.

10. The fire suppression system of claim 7, further comprising a representational panel, a remote control panel, and a local control panel, the representational panel, the remote control panel, and the local control panel being electrically connected to the controller, respectively.