CN218529589U - Fire-fighting system for waste gas treatment device - Google Patents

Abstract

The application discloses a fire extinguishing system for exhaust treatment device belongs to exhaust treatment device's fire extinguishing system technical field. The system comprises: the fire-fighting water tank is hollow inside to form a water storage cavity and is arranged above the waste gas treatment device; the water distribution main pipe is communicated with the first water outlet, a first water distribution branch pipe, a second water distribution branch pipe and a third water distribution branch pipe are connected to the water distribution main pipe, one end of the first water distribution branch pipe is communicated with the water distribution main pipe, the other end of the first water distribution branch pipe is arranged at the top position in the chimney, one end of the second water distribution branch pipe is communicated with the water distribution main pipe, the other end of the second water distribution branch pipe is arranged at the top position in the high-voltage electric field, one end of the third water distribution branch pipe is communicated with the water distribution main pipe, and the other end of the third water distribution branch pipe is arranged at the top position in the spray tower. This fire extinguishing system can put out a fire in the device inside the very first time when exhaust treatment device takes place the condition of a fire, reduces the time and the degree of difficulty of putting out a fire to reduce the damage of equipment.

Description

Fire-fighting system for waste gas treatment device

Technical Field

The application relates to a fire extinguishing system for an exhaust gas treatment device, and belongs to the technical field of fire extinguishing systems of exhaust gas treatment devices.

Background

The working principle and the operation and use method of the indoor fire hydrant water supply system are that after a fire disaster is found, a person opens a fire hydrant door, presses a fire alarm button, sends a fire alarm signal to a fire control center, then quickly pulls out a water hose, a water gun or a fire hose, connects one end of the water hose with a water outlet of the fire hydrant and the other end of the water hose with a water gun, unfolds the water hose, rotates a hand wheel of the fire hydrant to open the water valve, grips the water gun tightly, and jets water to a fire point through jet flow generated by the water gun to extinguish the fire.

However, when a fire disaster happens inside the waste gas treatment equipment, the fire disaster is burnt inside the equipment, the indoor fire hydrant is fed with water for fire extinguishing, the surface of the waste gas treatment equipment can only be cooled, the fire disaster cannot be extinguished inside the equipment, the fire disaster fighting difficulty is high, the time for fighting the fire disaster is long, and the equipment damage after the fire disaster is serious. Therefore, it is necessary to design a fire fighting system capable of rapidly extinguishing a fire when a fire occurs inside the equipment of the exhaust gas treatment device.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the application provides a fire extinguishing system for a waste gas treatment device, realize fire control water supply through fire water tank and water distribution main in the system, and install first water distribution branch pipe, second water distribution branch pipe and third water distribution branch pipe respectively in the chimney of waste gas treatment device, high-tension electric field and the equipment of spray tower, can put out a fire when waste gas treatment device takes place the condition of a fire, the very first time is put out a fire inside the device, reduce the time and the degree of difficulty of putting out a fire, and reduce the damage of equipment.

According to one aspect of the present application, there is provided a fire fighting system for an exhaust gas treatment device, comprising:

the fire-fighting water tank is hollow inside to form a water storage cavity, the water storage cavity is provided with a first water inlet and a first water outlet, the fire-fighting water tank is arranged above the waste gas treatment device, and the waste gas treatment device comprises a chimney, a high-voltage electric field and a spray tower;

the water distribution main pipe is communicated with the first water outlet, a first water distribution branch pipe, a second water distribution branch pipe and a third water distribution branch pipe are connected to the water distribution main pipe, one end of the first water distribution branch pipe is communicated with the water distribution main pipe, the other end of the first water distribution branch pipe is arranged at the top position in the chimney, the first water distribution branch pipe is connected with the first spray head, one end of the second water distribution branch pipe is communicated with the water distribution main pipe, the other end of the second water distribution branch pipe is arranged at the top position in a high-voltage electric field and is connected with the second spray head, one end of the third water distribution branch pipe is communicated with the water distribution main pipe, and the other end of the third water distribution branch pipe is arranged at the top position in the spray tower and is connected with the third spray head.

Optionally, a flow switch is arranged on the water distribution main pipe and used for detecting the water yield flowing through the water distribution main pipe; and/or

The water distribution main pipe is connected with a pressure switch, and the pressure switch is used for detecting the pressure of the water distribution main pipe.

Optionally, a first check valve is arranged on the water distribution main pipe, and the first check valve is arranged between the flow switch and the fire water tank.

Optionally, the number of the first spray headers is at least two, the number of the second spray headers is at least two, and the number of the third spray headers is at least two.

Optionally, a pressure stabilizing pump, a pressure stabilizing tank, an electric contact pressure gauge and a pressure stabilizing pipeline are further arranged between the water storage cavity and the water distribution main pipe, the water storage cavity, the pressure stabilizing pipeline, the pressure stabilizing pump, the pressure stabilizing tank, the electric contact pressure gauge, an electric contact pressure gauge control box and the water distribution main pipe are sequentially communicated, and the electric contact pressure gauge is electrically connected with the electric contact pressure gauge control box.

Optionally, still include the fire pond, the fire pond is provided with second water inlet and second delivery port, the second water inlet be used for to supply water in the fire pond, the second delivery port with the water distribution main pipe intercommunication.

Optionally, a second check valve is further arranged on the water distribution main pipe, and the second check valve is close to the second water outlet.

Optionally, a first ball float valve is arranged at the first water inlet, and a second ball float valve is arranged at the second water inlet.

Optionally, the water distribution main pipe is communicated with the water distribution main pipe through a fourth water distribution branch pipe, and a third water outlet and a water belt are arranged in the fire hydrant box.

Optionally, still include level sensor and glass level gauge, level sensor sets up in the water storage cavity to be connected with fire alarm control ware, the glass level gauge sets up fire water tank lateral wall is used for instructing the liquid level height in the water storage cavity.

Optionally, the water storage cavity is further provided with an overflow port, and the overflow port is communicated with the drain pipe.

Benefits that can be produced by the present application include, but are not limited to:

1. the utility model provides a fire extinguishing system for exhaust-gas treatment device, height ratio exhaust-gas treatment device top through setting up fire water tank's vertical height is high 15 meters, water meeting automatic flow in the water storage cavity is to the water distribution main in the pipe, and flow respectively to first water distribution branch pipe from the water distribution main, in second water distribution branch pipe and/or the third water distribution branch pipe, and put out a fire to the chimney respectively, high-tension field and spray column, need not to set up extra power unit and can realize automatic water supply and put out a fire, the cost of putting out a fire has been practiced thrift.

2. The utility model provides a fire extinguishing system for exhaust treatment device, first shower head, second shower head and third shower head all are two at least, can improve the homogeneity that the fire-fighting water sprayed in chimney, high-tension electric field or spray column, can put out a fire disaster fast.

3. The utility model provides a fire extinguishing system for exhaust treatment device, surge tank and surge tank can make this fire extinguishing system keep the required operating pressure of normal work, improve the stability that the water distribution main pipe goes out water.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of the general structure of a fire fighting system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a fire protection system according to an embodiment of the present disclosure coupled to an exhaust treatment device;

FIG. 3 is a schematic view of a fire hose to which embodiments of the present application relate;

FIG. 4 is a schematic view of a fire hose according to an embodiment of the present disclosure;

list of parts and reference numerals:

10. a fire water tank; 11. a water storage cavity 12 and a first water inlet; 13. a first water outlet; 14. a flow switch; 15. a pressure switch; 16. a first check valve; 17. a pressure stabilizing pump 18 and a pressure stabilizing tank; 19. a pressure stabilizing pipeline; 20. an electric contact pressure gauge; 21. a liquid level sensor; 22. a liquid level meter; 23. an overflow port; 24. a drain pipe; 25. a first float valve; 30. a water distribution main pipe; 31. a first water distribution branch pipe; 32. a second water distribution branch pipe; 33. a third water distribution branch pipe; 34. a fourth water distribution branch pipe; 35. a first shower head; 36. a second shower head; 37. a third shower head; 38. a first butterfly valve; 39. a second butterfly valve; 40. a third butterfly valve; 50. a fire pool; 51. a water replenishing pipe; 52. a second check valve; 53. a second float valve; 54. an indoor hydrant pump; 55. a water-absorbing bell mouth; 61. a chimney; 62. a high-voltage electric field; 63. a spray tower; 70. fire hydrant box.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1-4, embodiments of the present application disclose a fire protection system for an exhaust gas treatment device, comprising: the fire water tank 10 is hollow inside the fire water tank 10 to form a water storage cavity 11, the water storage cavity 11 is provided with a first water inlet 12 and a first water outlet 13, the fire water tank 10 is arranged above a waste gas treatment device, and the waste gas treatment device comprises a chimney 61, a high-voltage electric field 62 and a spray tower 63; the water distribution main pipe 30 is communicated with the first water outlet 13, the water distribution main pipe 30 is connected with a first water distribution branch pipe 31, a second water distribution branch pipe 32 and a third water distribution branch pipe 33, one end of the first water distribution branch pipe 31 is communicated with the water distribution main pipe 30, the other end of the first water distribution branch pipe 31 is arranged at the top position in the chimney 61 and is connected with the first spray header 35, one end of the second water distribution branch pipe 32 is communicated with the water distribution main pipe 30, the other end of the second water distribution branch pipe is arranged at the top position in the high-voltage electric field 62 and is connected with the second spray header 36, one end of the third water distribution branch pipe 33 is communicated with the water distribution main pipe 30, and the other end of the third water distribution branch pipe 33 is arranged at the top position in the spray tower 63 and is connected with the third spray header 37.

The water storage cavity 11 in the fire-fighting water tank 10 is used for storing fire-fighting water, when a fire breaks out in the equipment of the waste gas treatment device, the water distribution main pipe 30, the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 are opened, so that the fire extinguishment of the chimney 61, the high-voltage electric field 62 and the spray tower 63 is realized, the fire can be rapidly extinguished in the initial stage of the fire breaking out of the waste gas treatment device, the time and the difficulty for putting out the fire are reduced, and the damage to the equipment is reduced. And the fire water tank 10 is arranged at a position 15 meters higher than the top of the waste gas treatment device, water in the water storage cavity 11 can automatically flow into the water distribution main pipe 30, and respectively flow into the first water distribution branch pipe 31, the second water distribution branch pipe 32 and/or the third water distribution branch pipe 33 from the water distribution main pipe 30, and are respectively sprayed out by the first spray head 35, the second spray head 36 and/or the third spray head 37, automatic water supply and fire extinguishment can be realized without arranging an additional power mechanism, and the fire extinguishment cost is saved.

Specifically, referring to fig. 2, in the exhaust gas treatment device in the prior art, the high-voltage electric field 62 and the spray tower 63 themselves may be provided with corresponding pipelines during operation, and use the motor to supply water, so as to meet the requirement of daily exhaust gas treatment, however, when a fire occurs, the power supply needs to be cut off at the first time, the motor which originally supplies water to the high-voltage electric field 62 or the spray tower 63 cannot supply water under the condition of cutting off the power supply, the fire water tank 10, the water distribution main pipe 30, the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 in the application can extinguish fire to the exhaust gas treatment device independently after the exhaust gas treatment device cuts off the power supply, so that the reliability of the fire fighting system is improved, and the system is applicable to various exhaust gas treatment devices, and is widely popularized and used.

It will be understood by those skilled in the art that when the exhaust gas treatment device is not in a fire, the fire protection system is not in operation and the water distribution main 30, the first water distribution branch 31, the second water distribution branch 32 and the third water distribution branch 33 are all in a closed state; the fire fighting system operates only when a fire breaks out in the exhaust gas treatment device, the water distribution main pipe 30 is in an open state, the rest of the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 can be opened completely, or the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 can be selectively opened according to different positions of the fire break out in the exhaust gas treatment device, for example, only the first water distribution branch pipe 31 can be opened when the fire breaks out in the chimney 61, and water in the water storage chamber 11 automatically flows into the chimney 61 to extinguish the fire due to the fact that the water distribution main pipe 30 is communicated with the first water distribution branch pipe 31 and the first water outlet 13.

As an implementation mode of the application, a first butterfly valve 38 is arranged on the first water distribution branch pipe 31, the first butterfly valve 38 is used for opening the first water distribution branch pipe 31, a second butterfly valve 39 is arranged on the second water distribution branch pipe 32, the second butterfly valve 39 is used for opening the second water distribution branch pipe 32, a third butterfly valve 40 is arranged on the third water distribution branch pipe 33, and the third butterfly valve 40 is used for opening the third water distribution branch pipe 33. Under the arrangement, the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 are independently arranged, the first butterfly valve 38, the second butterfly valve 39 and/or the third butterfly valve 40 can be selectively opened according to the position of a fire disaster in the waste gas treatment device, the fire extinguishing accuracy of the fire extinguishing system is improved, the water consumption for extinguishing the fire disaster is saved, the extinguishing effect is guaranteed, and meanwhile the running cost of the fire extinguishing system is reduced.

As a specific implementation manner, the chimney 61 is provided with a first opening for the first water distribution branch pipe 31 to enter and be fixed at the top position in the chimney 61; the high-voltage electric field 62 is provided with a second opening for the second water distribution branch pipe 32 to enter and be fixed at the top position in the high-voltage electric field 62; the spray tower 63 is provided with a third opening for the third water distribution branch pipe 33 to enter and be fixed at the top position in the spray tower 63. The arrangement of the first opening, the second opening and the third opening is convenient for installing the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33, and it can be understood by those skilled in the art that when the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 are respectively installed at the first opening, the second opening and the third opening, a sealing gasket or other sealing substance needs to be arranged for realizing the sealing of the first opening, the second opening and the third opening, so as to prevent the exhaust gas in the exhaust gas treatment device from escaping from the first opening, the second opening and the third opening.

Specifically, the implementation mode that the other end of first water distribution branch pipe 31 set up the top position in chimney 61 does not specifically prescribe a limit to, can be the rigidity and the first open-ended fixed action that rely on self material, unsettled top of fixing in chimney 61, also can be the top position of fixing first water distribution branch pipe 31 in chimney 61 through the support, as long as can realize the fixed of first water distribution branch pipe 31 can, and the same is said, second water distribution branch pipe 32 and third water distribution branch pipe 33 can adopt the same mode to fix, or select the existing fixed mode that technical staff in the art can master to realize fixedly can.

Specifically, the connection mode of the first distribution branch pipe 31 and the first spray header 35 is not specifically limited, and may be a fixed connection, such as welding or an integrated molding mode, or a detachable connection, such as a bolt connection or a clamp connection, as long as the connection between the two can be realized, and similarly, the connection mode may also be selected to realize the connection between the second distribution branch pipe 32 and the second spray header 36, and the connection mode may also be selected from the third distribution branch pipe 33 and the third spray header 37. And when this fire extinguishing system of installation, can be outside after installing first water distribution branch pipe 31 and first shower head 35, pass through the first opening of chimney 61 again with first shower head 35 and the top position of first water distribution branch pipe 31 fixation in chimney 61, this mounting means is convenient and fast more to do benefit to this fire extinguishing system's periodic overhaul.

Specifically, the fire water tank 10, the water distribution main pipe 30, the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 are made of a fire-resistant material, such as stainless steel or an inorganic non-metal fire-resistant material, and a person skilled in the art can select a suitable material according to actual production needs and cost.

In one embodiment, there are at least two first showerheads 35, at least two second showerheads 36, and at least two third showerheads 37. This setting can improve the homogeneity that the fire-fighting water sprayed in chimney 61, high-voltage electric field 62 or spray column 63, can put out the conflagration fast.

In one embodiment, the water distribution main 30 is provided with a flow switch 14, the flow switch 14 is close to the first water outlet 13, and the flow switch 14 is used for detecting the water yield flowing through the water distribution main 30. An operator can select whether to supply fire-fighting water into the water storage cavity 11 through other parts according to the detected water yield of the water distribution main pipe 30 by the flow switch 14 so as to ensure that the water storage cavity 11 has enough water and improve the operation safety of the fire-fighting system.

Specifically, the water yield detected by the flow switch 14 can be directly observed by an operator, whether the water storage cavity 11 is supplied with fire-fighting water or not is selected by the judgment of the operator, a fire alarm controller can also be arranged, the water yield detected by the flow switch 14 is fed back to the fire alarm controller, the fire alarm controller compares and analyzes the water yield value with a preset value of the fire alarm controller after receiving the water yield value, the fire alarm controller automatically supplies the fire-fighting water, the automation degree of the fire-fighting system is improved, the fire alarm controller can adopt the existing mode in the prior art, and the structure does not limit the application.

The value detected by the flow switch 14 reaches a certain amount, the automatic fire-fighting water supply mode may be to supply water into the water storage cavity 11 by an additional water pump, or to connect the water distribution main pipe 30 with another standby water storage device, and when the value detected by the flow switch 14 reaches a certain amount, the standby water storage device supplies water into the water distribution main pipe 30, as long as the fire-fighting water supply is realized.

As an embodiment, a pressure switch 15 is connected to the water distribution main 30, and the pressure switch 15 is used for detecting the pressure of the water distribution main 30. If the pressure reaches the set value of the pressure switch 15, water can be directly supplemented to the water storage cavity 11, and the water can also be directly connected with a standby water storage device to supply water to the water main pipe 30 for water filling, so that the operation safety of the fire fighting system is further improved.

To achieve reduced malfunction, the flow switch 14 and the pressure switch 15 can be actuated simultaneously as a reliable means of directly starting the water supply into the water distribution main 30. The flow switch 14 is actuated first, and the pressure switch 15 is actuated later, so that the double-safety setting of directly starting water supplement into the water distribution main pipe 30 can be realized.

As an embodiment of the present application, a first check valve 16 is disposed on the water distribution main 30, and the first check valve 16 is disposed between the flow switch 14 and the fire water tank 10. The first check valve 16 prevents the reverse flow of fire fighting water from the water distribution main 30 into the fire water tank 10 to ensure that the water distribution main 30 has a sufficient water pressure and quantity.

As an implementation mode, a pressure stabilizing pump 17, a pressure stabilizing tank 18, an electric contact pressure gauge 20, an electric contact pressure gauge control box and a pressure stabilizing pipeline 19 are further arranged between the water storage cavity 11 and the water distribution main pipe 30, the water storage cavity 11, the pressure stabilizing pipeline 19, the pressure stabilizing pump 17, the pressure stabilizing tank 18, the electric contact pressure gauge 20 and the water distribution main pipe 30 are sequentially communicated, and the electric contact pressure gauge 20 is electrically connected with the electric contact pressure gauge control box. The electric contact pressure gauge 20 is used for detecting the pressure of the integral water distribution main pipe 30, and when the pressure is lower than the lower limit set by the electric contact pressure gauge 20, the electric contact pressure gauge control box starts the pressure stabilizing pump 17 to work; so that the fire fighting system maintains the working pressure required by normal work; when the pressure is larger than the upper limit value set on the electric contact pressure gauge 20, the electric contact pressure gauge control box stops the work of the pressure stabilizing pump 17, and the pressure of the fire fighting system is maintained by the pressure stabilizing tank 18.

As a preferred embodiment, the number of the pressure stabilizing pumps 17 is at least two, the two pressure stabilizing pumps 17 can improve the pressure stabilizing efficiency of the fire protection system, when one pressure stabilizing pump 17 fails, the normal operation of the fire protection system can be ensured, and the operation reliability of the system is further improved.

As an implementation mode, the fire fighting water tank 50 is further included, the fire fighting water tank 50 is provided with a second water inlet and a second water outlet, the second water inlet is used for supplying water into the fire fighting water tank 50, and the fire fighting water tank 50 is communicated with the water distribution main pipe 30 through the second water outlet in sequence. The fire pool 50 serves as a backup water storage device, and when the water in the fire water tank 10 is insufficient, the fire pool 50 continues to supply water to the water distribution main pipe 30, so as to ensure that the water distribution main pipe 30 has enough water pressure and water quantity to extinguish fire.

When the fire alarm controller determines to automatically replenish the main water pipe 30 based on the value detected by the flow switch 14 and/or the pressure switch 15, the fire alarm controller automatically turns on the indoor hydrant pump 54 to allow water in the fire pond 50 to flow into the main water pipe 30.

Specifically, a water suction bell mouth 55 is arranged in the fire hydrant pool 50, and the indoor fire hydrant pump 54 conveys the water in the fire hydrant pool 50 into the water distribution main pipe 30 through the water suction bell mouth 55. Preferably, the fire pool 50 has a volume of 580m ² So that the fire hose 50 is continuously supplied with water to the water distribution main 30.

In one embodiment, a second check valve 52 is further disposed on the water distribution main 30, and the second check valve is close to the second water outlet. The second check valve 52 prevents water in the distribution main 30 from flowing backward to the fire pool 50, thereby improving the stability of the fire fighting system.

In one embodiment, a first ball float 25 is provided at the first water inlet 12, and a second ball float 53 is provided at the second water inlet. The first ball float valve 25 in the fire water tank 10 floats on water all the time, when the water surface rises, the float rises along with the water surface, the connecting rod is driven to rise, and as the connecting rod is connected with the valve at the other end, when the float rises to a certain position, the connecting rod supports the rubber piston pad to realize the sealing of the first water inlet 12, so that the water inlet into the water storage cavity 11 is stopped; when the water level in the water storage cavity 11 falls, the buoy also falls, and the connecting rod drives the piston pad to open, so that the aim of automatically replenishing water to the fire water tank 10 is fulfilled. Similarly, the second ball float 53 can automatically supply water into the fire pool 50 or stop supplying water.

Optionally, a hydrant box 70 is further included, the hydrant box 70 is communicated with the water distribution main pipe 30 through a fourth water distribution branch pipe 34, and a third water outlet and a water belt are arranged in the hydrant box 70. The hydrant box 70 can be communicated with the water distribution main pipe 30, so that when the fire condition occurs indoors in the waste gas treatment device, the hydrant box 70 can be used for extinguishing the fire, the fire extinguishing capability of the system is improved, and when the fire condition occurs in the waste gas treatment device, the hydrant box 70 can also cool the outside of the waste gas treatment device, the fire is suppressed in an auxiliary manner, and the fire suppression efficiency is improved.

Specifically, the fourth branch water distribution pipe 34 is communicated with the main water distribution pipe 30, the fourth branch water distribution pipe 34 supplies fire-fighting water to the third water outlet, and the hose is connected to the third water outlet, so that water in the fire-fighting water tank 10 sequentially flows through the main water distribution pipe 30, the fourth branch water distribution pipe 34, the third water outlet, and the hose to a fire occurrence position, and the specific structure of the fire hydrant tank 70 may be the structure existing in the prior art, which is not specifically limited.

As an implementation mode, still include level sensor 21 and glass level gauge 22, level sensor 21 sets up in water storage chamber 11 to be connected with fire control room level gauge, fire control room personnel observe fire water tank liquid level at any time, and glass level gauge 22 sets up at fire water tank 10 lateral wall for instruct the liquid level height in the water storage chamber 11. Glass level gauge 22 is the direct observation window, and operating personnel can be according to the liquid level in this glass level gauge 22 direct observation water storage chamber 11, and above-mentioned level sensor 21 and glass level gauge 22's cooperation can enough directly reflect the liquid level state in the water storage chamber 11, and the operating personnel of being convenient for again observes, improves the intuitionistic nature that this fire extinguishing system operation was surveyd.

In one embodiment, the water storage chamber 11 is further provided with an overflow port 23, and the overflow port 23 is communicated with a drain pipe 24. Treat that water storage chamber 11 internal water volume surpasss overflow mouth 23 time, water in the water storage chamber 11 flows to 24 departments of water-drain pipe from overflow mouth 23, and water-drain pipe 24 discharges unnecessary water, and this setting makes water storage chamber 11 have certain buffer space, avoids the water yield in the water storage chamber 11 too much to cause irreversible damage to fire prevention water tank 10, improves this fire prevention water tank 10's security to prolong fire prevention water tank 10's life.

The use method of the fire fighting system comprises the following steps: when a fire breaks out in the waste gas treatment device, for example, the chimney 61, the high-voltage electric field 62 and the spray tower 63 all break out, firstly, the power supply of the waste gas treatment device is cut off, the first butterfly valve 38, the second butterfly valve 39 and the third butterfly valve 40 are opened, water in the water storage cavity 11 enters the first water distribution branch pipe 31, the second water distribution branch pipe 32 and the third water distribution branch pipe 33 through the water distribution main pipe 30, and water is sprayed to the chimney 61, the high-voltage electric field 62 and the spray tower 63 through the first spray header 35, the second spray header 36 and the third spray header 37 respectively to extinguish the fire; meanwhile, the third water outlet and the water belt can be opened, and water in the water storage cavity 11 is sprayed out after passing through the water distribution main pipe 30, the fourth water distribution branch pipe 34, the third water outlet and the water belt, so that the external cooling of the waste gas treatment device is realized; the pressure switch 15 detects the pressure of the integral water distribution main pipe 30 and transmits the pressure to the fire alarm controller, and the fire alarm controller judges and decides to start the indoor fire hydrant pump 54 according to the received pressure value, so as to realize the pressure control of the fire-fighting system; the flow switch 14, the pressure switch 15 and the liquid level sensor 21 detect the flow of water flowing out of the water distribution main pipe 30 and the liquid level of the water storage cavity 11 in real time, and transmit the detected values to the fire alarm controller, when the values detected by the flow switch 14 reach the preset values, the fire alarm controller starts the indoor fire hydrant pump 54, and when the values detected by the pressure switch 15 reach the preset values, the fire alarm controller also starts the indoor fire hydrant pump 54 to realize water replenishing of the water distribution main pipe 30, water in the fire pool 50 enters the water distribution main pipe 30 to continue to stably extinguish the fire, and the flow switch 14 and the pressure switch 15 can realize double insurance of directly starting the pump and can also realize interlocking.

After the fire is extinguished, the first butterfly valve 38, the second butterfly valve 39 and the third butterfly valve 40 are respectively closed, the third opening is closed at the same time, the fire fighting system stops spraying water outwards, the indoor fire hydrant pump 54 is manually stopped, water is stopped from being supplied into the water distribution main pipe 30, and no water is supplied into the fire pool 50 and the fire water tank 10 by adopting a municipal pipe network.

The volume in the fire pool 50 in this application is great, can store a large amount of water, and after the water in the fire pool 50 consumes, the person skilled in the art can select suitable mode to pour into in the fire pool 50, and will not be described in detail here.

The fire alarm controller is not shown in the present application, and the fire alarm controller is connected with each component by using a wire, which is not shown, but does not constitute a limitation to the present application, and those skilled in the art can arrange the fire alarm controller according to the positions of the actual waste gas treatment device and the fire water tank.

All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims (10)

1. A fire protection system for an exhaust gas treatment device, comprising:

the fire-fighting water tank is hollow inside to form a water storage cavity, the water storage cavity is provided with a first water inlet and a first water outlet, the fire-fighting water tank is arranged above the waste gas treatment device, and the waste gas treatment device comprises a chimney, a high-voltage electric field and a spray tower;

the water distribution main pipe, the water distribution main pipe with first delivery port intercommunication, just be connected with first water distribution branch pipe, second water distribution branch pipe and third water distribution branch pipe on the water distribution main pipe, first water distribution branch pipe one end with the water distribution main pipe intercommunication, the other end sets up top position in the chimney to be connected with first shower head, second water distribution branch pipe one end with the water distribution main pipe intercommunication, the other end sets up the top position in the high-voltage electric field, and is connected with the second shower head, third water distribution branch pipe one end with the water distribution main pipe intercommunication, the other end sets up the top position in the spray column, and is connected with the third shower head.

2. The fire fighting system for exhaust gas treatment device according to claim 1, wherein a flow switch is provided on the water distribution main pipe, the flow switch being located near the first water outlet and being configured to detect a water yield through the water distribution main pipe; and/or

The water distribution main pipe is connected with a pressure switch, and the pressure switch is used for detecting the pressure of the water distribution main pipe.

3. A fire protection system for an exhaust gas treatment device as claimed in claim 2, wherein a first check valve is provided on the water distribution main, the first check valve being provided between the flow switch and the fire water tank; and/or

The number of the first spray headers is at least two, the number of the second spray headers is at least two, and the number of the third spray headers is at least two.

4. The fire fighting system for the exhaust gas treatment device according to claim 1, wherein a pressure stabilizing pump, a pressure stabilizing tank, an electric contact pressure gauge control box and a pressure stabilizing pipeline are further arranged between the water storage cavity and the water distribution trunk, the water storage cavity, the pressure stabilizing tank, the pressure stabilizing pump, the pressure stabilizing tank, the electric contact pressure gauge and the water distribution trunk are sequentially communicated, and the electric contact pressure gauge is electrically connected with the electric contact pressure gauge control box.

5. The fire protection system for an exhaust gas treatment device according to claim 1, further comprising a fire pool provided with a second water inlet for supplying water into the fire pool and a second water outlet communicating with the water distribution main.

6. The fire protection system for an exhaust gas treatment device of claim 5, wherein a second check valve is disposed on the water distribution main, the second check valve being adjacent to the second water outlet.

7. A fire protection system for an exhaust gas treatment device as claimed in claim 5, wherein a first float valve is provided at the first water inlet, and a second float valve is provided at the second water inlet.

8. The fire protection system for an exhaust gas treatment device of claim 1, further comprising a hydrant box in communication with the water distribution main through a fourth branch water distribution pipe, the hydrant box having a third water outlet and a water hose disposed therein.

9. The fire protection system for an exhaust gas treatment device according to claim 1, further comprising a liquid level sensor and a glass liquid level meter, wherein the liquid level sensor is arranged in the water storage cavity and connected with the fire alarm controller, and the glass liquid level meter is arranged on the side wall of the fire protection water tank and used for indicating the liquid level height in the water storage cavity.

10. A fire protection system for an exhaust gas treatment device as recited in claim 1 wherein the water storage chamber is further provided with an overflow outlet, the overflow outlet being in communication with a drain pipe.

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