Automatic water curtain spraying device for liquid chlorine plant

Abstract

This utility model belongs to the field of liquid chlorine production technology and provides an automatic water curtain sprinkler system for liquid chlorine plants. The system includes a shut-off valve, a main sprinkler pipe, branch sprinkler pipes, a chlorine gas probe, and a controller. The chlorine gas probe is installed inside the plant. The branch sprinkler pipes surround the plant, and sprinkler heads are installed at the top of the doors and windows, connected to the branch sprinkler pipes. One end of the main sprinkler pipe is connected to the fire water network, and the other end is connected to the branch sprinkler pipes. The shut-off valve is installed on the main sprinkler pipe. This device utilizes a fire water source and installs water mist nozzles above all doors and windows. The shut-off valve is interlocked with the chlorine gas probe signal inside the plant. In the event of a chlorine leak, the shut-off valve automatically opens, and the water curtain sprays, providing a secondary sealing and absorption effect, significantly improving safety. Based on actual production needs, and with the core objective of completely preventing accidental chlorine leaks that could injure personnel, this system provides an additional layer of protection for vulnerable points such as plant doors and windows, ensuring absolute safety.

Description

Technical Field

[0001] This utility model belongs to the field of liquid chlorine production technology, specifically relating to an automatic water curtain spraying device for liquid chlorine plants. Background Technology

[0002] Liquid chlorine is highly toxic and diffuses rapidly upon leakage. Due to the rapid development of the chlor-alkali industry and the continuous upgrading of safety management, the production and storage management of liquid chlorine has become particularly important.

[0003] Although existing chlor-alkali plants are equipped with negative pressure leakage absorption devices for liquid chlorine plants and automatic door and window interlocking functions, they still cannot ensure that residual chlorine gas will not leak out in case of an accident, especially in the gaps of doors and windows, which pose certain safety hazards. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic water curtain spraying device for liquid chlorine plants, which can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic water curtain spraying device for a liquid chlorine plant, comprising a shut-off valve, a main spraying pipe, branch spraying pipes, a chlorine gas probe, and a controller; The chlorine gas probe is installed inside the factory building; The sprinkler branch pipes are arranged around the factory building, and sprinkler heads are installed at the top of the doors and windows of the factory building. The sprinkler heads are connected to the sprinkler branch pipes. One end of the main sprinkler pipe is connected to the fire water pipe network, and the other end of the main sprinkler pipe is connected to the sprinkler branch pipe. The shut-off valve is installed on the main spray pipe; The controller is electrically connected to the chlorine gas probe and the shut-off valve, respectively.

[0006] Preferably, the shut-off valve is provided with a first manual valve at the inlet and a second manual valve at the outlet.

[0007] Preferably, a bypass is also included, with both ends of the bypass connected to the main sprinkler pipe. The connection point between the first end of the bypass and the main sprinkler pipe is located between the first hand valve and the fire water pipe network, and the connection point between the second end of the bypass and the main sprinkler pipe is located between the second hand valve and the sprinkler branch pipe. A bypass valve is provided on the bypass.

[0008] Preferably, the door is an automatic door, the window is an automatic window, and the controller is electrically connected to the door and the window respectively.

[0009] Preferably, the plant is equipped with at least two of the chlorine gas probes.

[0010] Preferably, the nozzle is a fan-shaped water mist nozzle.

[0011] Preferably, a lifting mechanism is also included, with the nozzle disposed at the lifting end of the lifting mechanism.

[0012] Preferably, the lifting mechanism includes a bracket, a screw, a sliding rod, and a connecting plate. The screw is rotatably mounted on the bracket, and the sliding rod is fixedly mounted on the bracket. The connecting plate is provided with a mounting hole, a screw hole, and a sliding hole. The nozzle is fitted into the mounting hole, the screw hole is threadedly engaged with the screw, and the sliding hole is slidably engaged with the sliding rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides an automatic water curtain sprinkler system for liquid chlorine plants. By utilizing a fire-fighting water source, water mist nozzles are installed above all doors and windows. The shut-off valves are interlocked with chlorine gas detectors within the plant. In the event of a chlorine leak, the shut-off valves automatically open, and the water curtain sprays, providing a secondary sealing and absorption effect, significantly enhancing safety. Based on practical production considerations, the system aims to completely prevent accidental chlorine leaks that could injure personnel. It provides an additional layer of protection for vulnerable points such as doors and windows, ensuring absolute safety. This device features a simple process circuit, low failure rate, sensitive signal triggering, timely shut-off valve response, and strong applicability within the field. Attached Figure Description

[0014] Figure 1 A connection diagram of an automatic water curtain spraying device for a liquid chlorine plant provided for an embodiment of this utility model; Figure 2 A schematic diagram of the bypass and related connections of an automatic water curtain spraying device for a liquid chlorine plant, provided for an embodiment of this utility model; Figure 3 A front view of the window and related parts of an automatic water curtain sprinkler device for a liquid chlorine plant, provided for an embodiment of this utility model; Figure 4 A front view of the door and related parts of an automatic water curtain sprinkler system for a liquid chlorine plant, provided for an embodiment of this utility model; Figure 5 A front view of the lifting mechanism and related parts of an automatic water curtain spraying device for a liquid chlorine plant, provided for an embodiment of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Shut-off valve; 2. Sprinkler main pipe; 3. Sprinkler branch pipes; 4. Chlorine gas probe; 5. Factory building; 501. Door; 502. Window; 6. Spray nozzle; 7. Fire water supply network; 8. First-hand valve; 9. Secondary valve; 10. Bypass; 11. Bypass valve; 12. Bracket; 13. Screw; 14. Sliding rod; 15. Connecting plate. Detailed Implementation

[0016] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] This embodiment provides an automatic water curtain spraying device for a liquid chlorine plant, including a shut-off valve 1, a main spray pipe 2, a branch spray pipe 3, a chlorine gas probe 4, and a controller.

[0018] Chlorine gas probe 4 is installed inside plant 5; For example, see Figure 1 Plant 5 includes several areas such as a liquid chlorine storage tank area, a liquid chlorine filling area, an emergency cylinder handling room, and a weighing area, each equipped with a chlorine gas detector 4. The chlorine gas detector 4 utilizes existing technology, such as a chlorine leak detector, also known as a chlorine alarm or liquid chlorine alarm, which is a diaphragm-type probe alarm used for chlorine leak monitoring. The number and location of the chlorine gas detectors 4 must be determined based on the actual chlorine pipelines on site, ensuring full coverage of the storage tanks and complying with relevant national safety requirements.

[0019] Sprinkler branch pipe 3 is set around the factory building 5. Sprinkler head 6 is installed at the top of the door 501 and window 502 of the factory building 5. The sprinkler head 6 is connected to the sprinkler branch pipe 3. For example, see Figure 1 The spray branch pipe 3 surrounds the outside of the factory building 5, and the spray branch pipe 3 can be fixed to the outer wall of the factory building 5 by a bracket.

[0020] For example, the factory building 5 is equipped with multiple doors 501 and windows 502. Each door 501 and window 502 is equipped with a sprinkler head 6 at its top. The sprinkler head 6 is fixed to the inner wall of the factory building 5 by a bracket, and the inlet of the sprinkler head 6 is connected to the spray branch pipe 3 through a hose.

[0021] For example, see Figure 3-4The nozzle 6 is positioned downwards and is a fan-shaped water mist nozzle. Water is supplied to the nozzle 6 to spray downwards, forming a fan-shaped water curtain that completely covers the door 501 or window 502 below it (the number of nozzles 6 should match the actual door and window dimensions of the business, ensuring full coverage without blind spots; the pipe diameter, pipeline distance, number of nozzles, and water volume should be calculated and verified). It is worth noting that in cold northern winter regions, it is recommended to insulate the water curtain spray pipeline to prevent freezing and blockage.

[0022] One end of the main sprinkler pipe 2 is connected to the fire water network 7, and the other end of the main sprinkler pipe 2 is connected to the branch sprinkler pipe 3; For example, see Figure 1 The left end of the main sprinkler pipe 2 is connected to the fire water network 7, and the right end of the main sprinkler pipe 2 is connected to the sprinkler branch pipe 3. The water supply source (fire water network 7) is generally selected from the main fire water network, with constant pressure (equipped with a backup power supply) to ensure all-weather emergency response capability.

[0023] Shut-off valve 1 is installed on the main spray pipe 2; For example, see Figure 1 By opening shut-off valve 1, water from the fire water network 7 can flow through the main sprinkler pipe 2 into the branch sprinkler pipe 3. Closing shut-off valve 1 disconnects the main sprinkler pipe 2. Shut-off valve 1 is an emergency opener type, ensuring priority opening even in the event of a fault.

[0024] The controller is electrically connected to chlorine probe 4 and shut-off valve 1 respectively.

[0025] For example, the controller is a PLC controller, which is existing technology. When the chlorine probe 4 detects chlorine, it triggers an alarm and transmits a signal to the controller, which then determines whether a leak has occurred.

[0026] Specifically, if two or more chlorine gas probes 4 detect chlorine gas, it is determined that a leak has occurred; otherwise, it is determined that no leak has occurred.

[0027] If a leak occurs, the controller sends a signal to shut-off valve 1, which opens, allowing water from the fire water network 7 to flow through the main sprinkler pipe 2 into the branch sprinkler pipe 3 and spray out through the sprinkler heads 6 to form a fan-shaped water curtain. The controller continues to shut off valve 1 until all chlorine gas detectors 4 stop alarming.

[0028] If no leakage is observed, there is no need to open shut-off valve 1.

[0029] A leak is only identified when at least two chlorine gas probes 4 detect chlorine gas, which prevents false signals from triggering the opening of the shut-off valve 1.

[0030] Based on the above structure, the device provided in this embodiment uses fire-fighting water from the main sprinkler pipe 2, and water mist nozzles 6 are installed above all doors and windows. The shut-off valve 1 is interlocked with the chlorine gas detector 4 inside the plant. In the event of a chlorine leak, the shut-off valve 1 automatically opens, spraying a water curtain to provide secondary sealing and absorption, significantly improving the safety factor. Combined with actual production needs, the core objective is to completely prevent accidental chlorine leaks that could injure personnel. It provides an additional layer of protection for vulnerable points such as plant doors and windows, ensuring absolute safety. This device features a simple process circuit, low failure rate, sensitive signal triggering, timely shut-off valve response, and strong applicability within the field.

[0031] Based on the above technical solution, in the technical solution provided in this embodiment, a first hand valve 8 is provided at the inlet of the shut-off valve 1, and a second hand valve 9 is provided at the outlet of the shut-off valve 1; It also includes a bypass 10, both ends of which are connected to the main sprinkler pipe 2. The connection point between the first end of the bypass 10 and the main sprinkler pipe 2 is located between the first hand valve 8 and the fire water network 7. The connection point between the second end of the bypass 10 and the main sprinkler pipe 2 is located between the second hand valve 9 and the sprinkler branch pipe 3. A bypass valve 11 is provided on the bypass 10. For example, see Figure 2 The shut-off valve 1 is equipped with a first manual valve 8 and a second manual valve 9 at its left and right ends, respectively. The first manual valve 8 and the second manual valve 9 can be manually opened or closed, making operation simple and convenient.

[0032] For example, bypass 10 is connected in parallel with shut-off valve 1, and bypass valve 11 is provided on bypass 10. When shut-off valve 1 needs maintenance, the first hand valve 8 and the second hand valve 9 can be closed, and bypass valve 11 can be opened at the same time to ensure the connection of the pipeline and prevent the device from being unable to be used when shut-off valve 1 is under maintenance.

[0033] In the technical solution provided in this embodiment, door 501 is an automatic door, window 502 is an automatic window, and the controller is electrically connected to door 501 and window 502 respectively.

[0034] The automatic doors and windows are existing technologies. When any chlorine gas probe 4 detects chlorine gas and triggers an alarm, the controller will close both the automatic doors and windows.

[0035] The technical solution provided in this embodiment also includes a lifting mechanism, with the nozzle 6 installed at the lifting end of the lifting mechanism. The lifting mechanism allows the nozzle 6 to move up and down, thereby adjusting its height. This prevents the nozzle 6 from being installed too low or too high, which would prevent the sprayed water curtain from completely covering doors and windows. It also prevents the hose at the nozzle 6 outlet from being deformed by the top of the wall if the nozzle 6 is installed too high.

[0036] For example, see Figure 4-5The lifting mechanism can include a bracket 12, a screw 13, a sliding rod 14, and a connecting plate 15. The screw 13 is rotatably mounted on the bracket 12, and the sliding rod 14 is fixedly mounted on the bracket 12. The connecting plate 15 is provided with mounting holes, screw holes, and sliding holes. The nozzle 6 is fitted into the mounting hole. The screw hole is threadedly engaged with the screw 13, and the sliding hole is slidably engaged with the sliding rod 14.

[0037] Among them, bracket 12 is fixedly installed on the inner wall of factory building 5.

[0038] Both screw 13 and sliding rod 14 are vertically arranged.

[0039] The top end of the screw 13 is rotatably connected to the bracket 12, and a turntable is coaxially fixed at the bottom end of the screw 13.

[0040] The sliding rod 14 is slidably fitted inside the sliding hole. The sliding rod 14 serves as a guide.

[0041] The nozzle 6 inlet is connected to the spray branch pipe 3 via a flexible hose. The nozzle 6 is fixedly clipped into the mounting hole.

[0042] By rotating the turntable, the screw 13 can be driven to rotate, which in turn drives the connecting plate 15 to move up and down, thereby enabling the nozzle 6 to move up and down and allowing the height position of the nozzle 6 to be freely adjusted. The structure is simple and the operation is convenient.

[0043] Finally, the device provided in this embodiment is described in detail, along with its usage steps: a. All pipeline and nozzle cleaning, tightening, and inspection work has been completed.

[0044] b. The shut-off valve 1 is flexible in operation, the front and rear hand valves are open, the bypass valve 11 is closed, and the main water supply valve is open.

[0045] c. A false signal is given to the two chlorine gas probes 4, which triggers the automatic opening of the shut-off valve 1.

[0046] d. Check whether the water curtain spray on each door and window is uniform and fully covered; otherwise, adjust the angle and position of the spray nozzles in time to ensure the best fan-shaped spray state.

[0047] Daily management: It is recommended to manually test and verify the device every month to ensure that it can be put into normal use in case of abnormal emergencies.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of 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 this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0051] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An automatic water curtain spraying device for a liquid chlorine plant, characterized in that, Includes shut-off valve (1), main spray pipe (2), branch spray pipe (3), chlorine gas probe (4), and controller; The chlorine gas probe (4) is installed inside the factory building (5); The spray branch pipe (3) is arranged around the factory building (5). The top of the door (501) and window (502) of the factory building (5) are equipped with spray nozzles (6), and the spray nozzles (6) are connected to the spray branch pipe (3). One end of the main sprinkler pipe (2) is connected to the fire water network (7), and the other end of the main sprinkler pipe (2) is connected to the branch sprinkler pipe (3); The shut-off valve (1) is installed on the main spray pipe (2); The controller is electrically connected to the chlorine probe (4) and the shut-off valve (1) respectively.

2. The automatic water curtain spraying device for a liquid chlorine plant according to claim 1, characterized in that, The shut-off valve (1) is provided with a first manual valve (8) at its inlet and a second manual valve (9) at its outlet.

3. The automatic water curtain spraying device for a liquid chlorine plant according to claim 2, characterized in that, It also includes a bypass (10), both ends of which are connected to the main sprinkler pipe (2). The connection point between the first end of the bypass (10) and the main sprinkler pipe (2) is located between the first hand valve (8) and the fire water network (7). The connection point between the second end of the bypass (10) and the main sprinkler pipe (2) is located between the second hand valve (9) and the sprinkler branch pipe (3). A bypass valve (11) is provided on the bypass (10).

4. The automatic water curtain spraying device for a liquid chlorine plant according to claim 1, characterized in that, The door (501) is an automatic door, the window (502) is an automatic window, and the controller is electrically connected to the door (501) and the window (502) respectively.

5. The automatic water curtain spraying device for a liquid chlorine plant according to claim 1, characterized in that, At least two of the chlorine gas probes (4) are installed in the plant (5).

6. The automatic water curtain spraying device for a liquid chlorine plant according to claim 1, characterized in that, The nozzle (6) is a fan-shaped water mist nozzle.

7. The automatic water curtain spraying device for a liquid chlorine plant according to claim 1, characterized in that, It also includes a lifting mechanism, and the nozzle (6) is disposed at the lifting end of the lifting mechanism.

8. The automatic water curtain spraying device for a liquid chlorine plant according to claim 7, characterized in that, The lifting mechanism includes a bracket (12), a screw (13), a sliding rod (14), and a connecting plate (15). The screw (13) is rotatably mounted on the bracket (12), and the sliding rod (14) is fixedly mounted on the bracket (12). The connecting plate (15) is provided with a mounting hole, a screw hole, and a sliding hole. The nozzle (6) is fitted into the mounting hole. The screw hole is threadedly engaged with the screw (13), and the sliding hole is slidably engaged with the sliding rod (14).

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