A leakage prevention control device for hazardous liquids and a control method thereof

Abstract

The present invention relates to a leakage prevention control device for hazardous liquids and a control method thereof, comprising a drainage component, an leakage prevention mechanism, a program control box and a remote monitoring room computer, wherein the drainage component comprises a bottom plate, two side plates, a water guide plate and a drainage pipe, wherein the upper surface of the bottom plate is welded to the lower surfaces of the two side plates, and the upper surface of the water guide plate is threadedly connected to the upper surfaces of the side plates by screws; the present invention realizes multiple trigger control functions by components such as alarm buttons, and there are three mechanisms for triggering the control system, namely, 1. triggering by pressing the emergency button on the bridge deck; 2. triggering by monitoring the computer in the remote control room; 3. automatic triggering by acid-base induction, relying on the acid-base sensor to detect the acid-base value of the liquid diverted by the drainage component in real time, and judging whether a dangerous liquid leakage accident has occurred in the road section on this basis, and driving the leakage prevention mechanism to cooperate with the drainage component through a PLC controller to block the drainage pipe to prevent the further spread of the dangerous accident.

Description

Technical Field

[0001] The invention relates to the technical field of drainage ditches, and in particular to a leakage prevention control device for hazardous liquids and a control method thereof. Background Art

[0002] In modern society, bridges or other traffic sections are generally equipped with corresponding drainage ditches to facilitate the discharge and diversion of natural liquids such as rainwater on the road surface to keep the ground dry. However, when some vehicles carrying dangerous chemical liquids (such as sulfuric acid) are damaged due to accidents, the storage facilities of the hazardous substances are damaged, which will lead to the leakage of hazardous substances. If the leaked hazardous substances flow into the drainage pipes along the drainage system, it will cause huge environmental pollution in the city and directly threaten people's health. At the same time, it will also cause irreversible damage to the drainage system and economic losses. Therefore, how to avoid such accidents becomes particularly important.

[0003] To this end, a leakage prevention control device for hazardous liquids and a control method thereof are proposed.

[0004] The above information disclosed in the Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is known to a person of ordinary skill in the art. Summary of the invention

[0005] In view of this, the embodiments of the present invention hope to provide a leakage prevention control device for hazardous liquids and a control method thereof, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the present invention is implemented as follows: a leakage prevention control device for hazardous liquids, comprising a drainage assembly, a leakage prevention mechanism, a program control box and a remote monitoring room computer, wherein the drainage assembly comprises a bottom plate, two side plates, a water guide plate and a drainage pipe, the upper surface of the bottom plate is welded to the lower surfaces of the two side plates, the upper surface of the water guide plate is threadedly connected to the upper surfaces of the side plates by screws, and the outer surface of the drainage pipe is integrally formed with the lower surface of the bottom plate;

[0007] The anti-leakage mechanism includes a solenoid valve, a blocking plug, a bearing, an acid-base sensor and a flow sensor, the piston head of the solenoid valve is bonded to the inner bush of the bearing, the outer bush of the bearing is fixedly connected to the inner wall of the blocking plug, the acid-base sensor is installed on the outer surface of the side plate, and the flow sensor is installed on the inner wall of the drain pipe. The anti-leakage mechanism is installed on the outside of the drainage component.

[0008] In some embodiments, a storage cavity is integrally formed on the inner wall of the drain pipe, and the drain pipe is fixedly connected to the outer surface of the flow sensor through the storage cavity.

[0009] In some embodiments, water grooves are evenly arranged on the upper surface of the water guide plate.

[0010] In some embodiments, a boss is provided on the upper surface of the water guide plate, the water guide plate is adapted to the outer surface of the blocking plug via the boss, and a position sensor is installed on the inner wall of the boss.

[0011] In some embodiments, a guardrail is fixedly connected to the outer surface of the solenoid valve, and an alarm button is threadedly connected to the outer surface of the guardrail via bolts.

[0012] In some embodiments, a PLC controller is installed on the outer surface of the program control box, and a display screen and a signal transceiver are respectively installed inside the program control box. The electrical output ends of the alarm button, the position sensor, the acid-base sensor and the flow sensor are electrically connected to the electrical input end of the PLC controller, and the electrical output end of the PLC controller is electrically connected to the electrical input end of the solenoid valve. The PLC controller is connected to the computer signal of the remote monitoring room through the signal transceiver.

[0013] In addition, the present invention also provides a control method for a leakage prevention control device for hazardous liquids, comprising the following steps:

[0014] S1. During normal drainage, the upper liquid flows through the water channel of the water guide plate into the interior of the drainage assembly and is directed to the predetermined area by the drainage pipe for treatment;

[0015] S2. When dangerous liquid leaks due to an accident and is diverted by the drainage component, the acid-base sensor probe detects abnormal data and feeds back the electrical signal to the PLC controller. The PLC controller then controls the solenoid valve to insert the blocking plug into the drain pipe, thereby blocking the entire drainage system.

[0016] S3. The staff of the computer and program control box in the remote monitoring room have obtained the specific information and location information of the accident site through the activation position of the solenoid valve and the acid-base sensor. They can selectively activate all the anti-leakage mechanisms in the entire area through the program control box, PLC controller and signal transceiver, combined with the actual drainage system of the site, to minimize the adverse effects of the accident.

[0017] S4. This device realizes self-checking through the PLC controller setting. By setting a predetermined time limit and combining the time period of the actual drainage water flow, the anti-leakage mechanism is triggered to work, and cooperates with the flow sensor to determine whether there is garbage or other conditions that affect the normal operation of the device.

[0018] In some embodiments, in S2, when the blocking plug is inserted into the drain pipe, its bearing is subjected to upper pressure to achieve rotation and adjustment of the blocking plug to change the angle, thereby achieving adaptive fit with the drain pipe and ensuring that the two are tightly closed.

[0019] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0020] 1. The present invention relies on the acid-base sensor to detect the acid-base value of the liquid diverted by the drainage component in real time, and uses this as a basis to determine whether a dangerous liquid leakage accident has occurred in the road section, and drives the anti-leakage mechanism to cooperate with the drainage component through the PLC controller to block the drainage pipe to prevent the further spread of the dangerous accident. At the same time, the staff selectively activates all anti-leakage mechanisms in the entire area through the background based on the specific information and location information of the accident site, combined with the actual drainage system of the site, to minimize the adverse effects of the accident;

[0021] 2. The present invention realizes multiple trigger control functions through components such as alarm buttons. There are three mechanisms for triggering the control system: 1. Triggering by pressing the emergency button on the bridge deck; 2. Triggering by monitoring the computer in the remote control room; 3. Automatic triggering by acid-base sensing, ensuring that when a dangerous accident occurs, the device can effectively curb the further spread of the dangerous accident. At the same time, it can perform self-detection during normal use. By setting a predetermined time limit and combining the time period of actual drainage water flow, the anti-leakage mechanism is triggered to work, and cooperates with the flow sensor to determine whether there is garbage or other conditions that affect the normal operation of the device.

[0022] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present invention and should not be regarded as limiting the scope of the present invention.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the anti-leakage mechanism according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the three-dimensional structure of a solenoid valve according to an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the three-dimensional structure of the storage cavity according to an embodiment of the present invention Figure 1 ;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the storage cavity according to an embodiment of the present invention Figure 2 ;

[0029] Figure 6 Schematic diagram of the three-dimensional structure of the flow sensor according to an embodiment of the present invention

[0030] Figure 7 Schematic diagram of the structure of a signal transceiver according to an embodiment of the present invention;

[0031] Figure 8 It is a three-dimensional structural diagram of a remote monitoring room computer and a program control box according to an embodiment of the present invention;

[0032] Fig. 9 Schematic diagram of an electric control module according to an embodiment of the present invention.

[0033] In the figure: 1. Drainage assembly; 101. Bottom plate; 102. Side plate; 103. Water guide plate; 1031. Water trough; 1032. Boss; 104. Drain pipe; 1041. Storage cavity; 2. Anti-leakage mechanism; 201. Solenoid valve; 202. Blocking plug; 2021. Bearing; 203. Acid-base sensor; 204. Flow sensor; 205. Position sensor; 3. Guardrail; 301. Alarm button; 4. Program control box; 401. PLC controller; 402. Display screen; 403. Signal transceiver; 5. Computer in remote monitoring room. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] like Figure 1-Figure 9 As shown, an embodiment of the present invention provides a leakage prevention control device for hazardous liquids, including a drainage component 1, a leakage prevention mechanism 2, a program control box and a remote monitoring room computer 5, wherein the drainage component 1 includes a bottom plate 101, two side plates 102, a water guide plate 103 and a drainage pipe 104, wherein the upper surface of the bottom plate 101 is welded to the lower surfaces of the two side plates 102, the upper surface of the water guide plate 103 is threadedly connected to the upper surface of the side plate 102 by screws, and the outer surface of the drainage pipe 104 is integrally formed with the lower surface of the bottom plate 101;

[0036] The anti-leakage mechanism 2 includes a solenoid valve 201, a blocking block 202, a bearing 2021, a acid-base sensor 203 and a flow sensor 204. The piston head of the solenoid valve 201 is bonded to the inner wall of the bearing 2021, the outer wall of the bearing 2021 is fixedly connected to the inner wall of the blocking block 202, the acid-base sensor 203 is installed on the outer surface of the side plate 102, and the flow sensor 204 is installed on the inner wall of the drain pipe 104.

[0037] The anti-leakage mechanism 2 is installed outside the drainage component 1 .

[0038] In one embodiment, the inner wall of the drain pipe 104 is integrally formed with a storage cavity 1041 , and the drain pipe 104 is fixedly connected to the outer surface of the flow sensor 204 through the storage cavity 1041 ; the drain pipe 104 is firmly connected to the flow sensor 204 through the storage cavity 1041 .

[0039] In one embodiment, water grooves 1031 are evenly formed on the upper surface of the water guide plate 103 ; the water guide plate 103 receives and guides the water flow on the road surface through the water grooves 1031 .

[0040] In one embodiment, a boss 1032 is provided on the upper surface of the water guide plate 103, and the water guide plate 103 is adapted to the outer surface of the blocking plug 202 through the boss 1032, and a position sensor 205 is installed on the inner wall of the boss 1032; when the blocking plug 202 is inserted into the drain pipe 104, its bearing 2021 is subjected to upper pressure to realize rotation and adjustment of the blocking plug 202 to change the angle, thereby realizing adaptive cooperation with the drain pipe 104 and ensuring that the two are tightly closed.

[0041] In one embodiment, the outer surface of the solenoid valve 201 is fixedly connected to a guardrail 3, and the outer surface of the guardrail 3 is threadedly connected to an alarm button 301 through bolts; the present invention implements multiple trigger control functions through the alarm button 301 to ensure that when a dangerous accident occurs, the device can effectively curb the further spread of the dangerous accident.

[0042] In one embodiment, a PLC controller 401 is installed on the outer surface of the program control box 4, and a display screen 402 and a signal transceiver 403 are respectively installed inside the program control box 4. The electrical output ends of the alarm button 301, the position sensor 205, the acid-base sensor 203 and the flow sensor 204 are electrically connected to the electrical input end of the PLC controller 401, and the electrical output end of the PLC controller 401 is electrically connected to the electrical input end of the solenoid valve 201. The PLC controller 401 is connected to the remote monitoring room computer 5 through the signal transceiver 403.

[0043] In addition, the present invention also provides a control method for a leakage prevention control device for hazardous liquids, comprising the following steps:

[0044] S1. During normal drainage, the upper liquid flows into the interior of the drainage assembly 1 through the water groove 1031 of the water guide plate 103, and is guided to the predetermined area by the drainage pipe 104 for treatment;

[0045] S2. When dangerous liquid leaks due to an accident and is diverted and received by the drainage component 1, the acid-base sensor 203 detects abnormal data and feeds back an electrical signal to the PLC controller 401. The PLC controller 401 then controls the solenoid valve 201 to work and inserts the blocking plug 202 into the drain pipe 104, thereby blocking the entire drainage system.

[0046] S3, the staff of the remote monitoring room computer and the program control box 4 have obtained the specific information and location information of the accident site through the activation position of the solenoid valve 201 and the acid-base sensor 203. They can selectively activate all the anti-leakage mechanisms 2 in the entire area through the program control box 4, the PLC controller 401 and the signal transceiver 403, combined with the actual drainage system of the site, to minimize the adverse effects of the accident;

[0047] S4 This device implements self-checking through the PLC controller 401. By setting a predetermined time limit and combining the time period of the actual drainage water flow, the anti-leakage mechanism 2 is triggered to work, and cooperate with the flow sensor 204 to determine whether there is garbage or other conditions that affect the normal operation of the device.

[0048] In one embodiment, in S2, when the blocking plug 202 is inserted into the drain pipe 104, its bearing 2021 is subjected to upper pressure to achieve rotation and adjustment of the blocking plug 202 to change the angle, thereby achieving adaptive matching with the drain pipe 104 and ensuring that the two are tightly closed.

[0049] In one embodiment, in actual use, the device can be used in different areas to trigger the anti-leakage mechanism 2 by means of alarm buttons 301, program control box 4, mobile phone APP (which can be operated at any time by personnel inspection), video monitoring and acid-base sensor 203, and can be used in a multi-triggering manner to ensure that when dangerous liquid leaks, the device can effectively contain the spread of dangerous accidents. There are three mechanisms for triggering the control system: 1. Triggering by pressing the emergency button on the bridge deck; 2. Triggering by monitoring the computer 5 in the remote control room; 3. Automatic triggering by acid-base sensing.

[0050] In one embodiment, in actual use, the device can also be connected to nearby monitoring devices, infrared detection facilities and temperature sensing facilities for real-time monitoring and feedback.

[0051] In one embodiment, several flow sensors 204 around the "hazardous liquid leakage area" can accurately determine the area and range that the hazardous liquid can affect, and then only close the anti-leakage mechanism 2 within the area, which can minimize the impact of the hazardous substances. For example, in scenes with normal drainage needs such as heavy rain, after all drainage ditches are closed, normal water and hazardous water will be mixed, and a large amount of hazardous water containing pollutants will accumulate, which may easily cause the hazardous water to overflow and cause harm to the surrounding environment; but after multiple flow sensors 204 of the device perform signal interaction calculations with the PLC controller 401, accurate interval closure is performed, and the rest of the drainage system can be used normally, which greatly reduces the possibility of this situation.

[0052] When the device of the present invention is working, it relies on the acid-base sensor 203 to detect the pH value of the liquid diverted by the drainage component 1 in real time, and uses this as a basis to determine whether a dangerous liquid leakage accident has occurred in the road section, and drives the anti-leakage mechanism 2 to cooperate with the drainage component 1 through the PLC controller 401 to block its drainage pipe 104 to prevent the dangerous accident from further spreading. At the same time, the workers use the background to obtain the specific information and location information of the section where the accident occurred, combined with the actual drainage system of the section, to selectively start all the anti-leakage mechanisms 2 in the entire area, so as to minimize the adverse effects of the accident.

[0053] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A control method for a leak prevention control device for hazardous liquids, characterized in that: The device comprises a drainage component (1), an anti-leakage mechanism (2), a program control box (4) and a remote monitoring room computer (5), and is characterized in that: the drainage component (1) comprises a bottom plate (101), two side plates (102), a water guide plate (103) and a drainage pipe (104), the upper surface of the bottom plate (101) is welded to the lower surfaces of the two side plates (102), the upper surface of the water guide plate (103) is threadedly connected to the upper surfaces of the side plates (102) by screws, and the outer surface of the drainage pipe (104) is integrally formed with the lower surface of the bottom plate (101); The anti-leakage mechanism (2) comprises a solenoid valve (201), a blocking plug (202), a bearing (2021), an acid-base sensor (203) and a flow sensor (204); the piston head of the solenoid valve (201) is bonded to the inner wall of the bearing (2021); the outer wall of the bearing (2021) is fixedly connected to the inner wall of the blocking plug (202); the acid-base sensor (203) is mounted on the outer surface of the side plate (102); and the flow sensor (204) is mounted on the inner wall of the drain pipe (104); The anti-leakage mechanism (2) is installed outside the drainage component (1); A boss (1032) is provided on the upper surface of the water guide plate (103), the water guide plate (103) is adapted to the outer surface of the blocking plug (202) via the boss (1032), a position sensor (205) is installed on the inner wall of the boss (1032), a guardrail (3) is fixedly connected to the outer surface of the solenoid valve (201), an alarm button (301) is threadedly connected to the outer surface of the guardrail (3) via bolts, a PLC controller (401) is installed on the outer surface of the program control box (4), and the inner wall of the program control box (4) is provided with a position sensor (205). The parts are respectively equipped with a display screen (402) and a signal transceiver (403); the electrical output ends of the alarm button (301), the position sensor (205), the acid-base sensor (203) and the flow sensor (204) are electrically connected to the electrical input end of the PLC controller (401); the electrical output end of the PLC controller (401) is electrically connected to the electrical input end of the solenoid valve (201); and the PLC controller (401) is signal-connected to the remote monitoring room computer (5) via the signal transceiver (403); The method comprises the following steps: S1. During normal drainage, the upper liquid flows through the water groove (1031) of the water guide plate (103) into the interior of the drainage assembly (1), and is guided by the drainage pipe (104) to a predetermined area for treatment; S2. When an accident causes leakage of dangerous liquid outside and the liquid is diverted and received by the drainage component (1), the acid-base sensor (203) probe detects abnormal data and feeds back an electrical signal to the PLC controller (401). Subsequently, the PLC controller (401) controls the solenoid valve (201) to operate and inserts the blocking plug (202) into the interior of the drainage pipe (104), thereby blocking the entire drainage system; S3. The staff of the remote monitoring room computer and the program control box (4) have obtained the specific information and location information of the accident site through the activation position of the solenoid valve (201) and the acid-base sensor (203). They can selectively activate all the anti-leakage mechanisms (2) in the entire area through the program control box (4), the PLC controller (401) and the signal transceiver (403), combined with the actual drainage system of the site; S4. The device is set to realize self-checking through the PLC controller (401). By setting a predetermined time limit and combining the time period of the actual drainage water flow, the anti-leakage mechanism (2) is triggered to work, and cooperates with the flow sensor (204) to determine whether there is garbage or other conditions that affect the normal operation of the device.

2. The control method for the leakage prevention control device for hazardous liquids according to claim 1, characterized in that: The inner side wall of the drainage pipe (104) is integrally formed with a storage cavity (1041), and the drainage pipe (104) is fixedly connected to the outer surface of the flow sensor (204) via the storage cavity (1041).

3. The control method for the leakage prevention control device for hazardous liquids according to claim 1, characterized in that: The upper surface of the water guide plate (103) is evenly provided with water grooves (1031).

4. The control method for the leakage prevention control device for hazardous liquids according to claim 1, characterized in that: In S2, when the blocking plug (202) is inserted into the drain pipe (104), its bearing (2021) is subjected to upper pressure to achieve rotational adjustment of the blocking plug (202) to change the angle, thereby achieving adaptive matching with the drain pipe (104) and ensuring that the two are tightly closed.

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