A device for detecting sewage infiltration in landfills
By designing the device of slope guard plate and controller, using heating air to assist volatilization and detection mechanism, the problem of deep penetration detection in landfills is solved, and comprehensive and deep penetration detection of landfills is achieved, improving the level of landfills. The accuracy and coverage of the detection are carried out, reducing the possibility of sewage overflow.
Patent Information
- Application Number
- CN202411118877.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-08-15
AI Technical Summary
The existing wastewater penetration detection methods in landfills have limited monitoring range, and they cannot effectively detect the penetration conditions at deep-level locations, and the infiltration points cannot be accurately positioned, which makes it difficult to repair and affect the environment.
A device including multiple slope guard plates, bottom plates and controllers is designed. By heating air to assist volatilization, combined with a volatile detection mechanism, a suction mechanism and a water accumulation start mechanism, the comprehensive slope of the landfill site is achieved. Deep penetration detection reduces the possibility of penetration and assists in reducing overflow of return sewage.
A comprehensive and deep penetration inspection of the slope of the landfill has been achieved, which improves the detection accuracy and coverage, facilitates positioning of the penetration points, and reduces the impact of sewage on the environment.
Smart Images
Figure CN118641459B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of sewage detection, and in particular relates to a device for detecting sewage penetration in a garbage landfill. Background Art
[0002] A landfill is a common facility for treating garbage. It is usually located in environmentally sensitive areas far away from residential areas, water sources, and takes a series of measures to reduce the impact on the surrounding environment. During operation, the landfill will first classify and pre-treat the garbage, then landfill it in layers, and take measures such as leakage prevention, gas collection and treatment, and leachate treatment.
[0003] At present, although landfills take anti-seepage measures, such as laying waterproof materials at the bottom of the pit, the waterproof structure will be subjected to greater pressure during the landfill and rolling process, and the waterproof structure will be affected by corrosion and aging after long-term use, and the waterproof structure will still leak. The waste liquid generated during the decomposition of garbage will penetrate into the surrounding soil layer and affect the surrounding environment. In order to detect this phenomenon in time and reduce the impact of garbage leachate on the surrounding environment, it is necessary to monitor sewage infiltration in the soil around the landfill, such as a device for detecting sewage infiltration in a landfill disclosed in patent publication number CN112964622B;
[0004] The commonly used detection method now is to dig monitoring wells downstream of the landfill. The monitoring wells can detect groundwater flowing through, and determine whether there is a leak in the landfill by detecting whether the pollutants in the groundwater exceed the standard. However, the monitoring range of the monitoring wells is relatively limited, and it is difficult to dig. If you want a larger monitoring range, you need to dig multiple monitoring wells. At the same time, it is impossible to determine the location of the infiltration point, which is not conducive to subsequent timely repairs. There are also movable detection devices such as those disclosed in the above-mentioned patents, but they can usually only detect sewage in shallow soil, and the depth of landfills is usually 10 to 30 meters. It is difficult to detect whether sewage has infiltrated at deep locations. Summary of the invention
[0005] The object of the present invention is to provide a device for detecting sewage infiltration in a landfill in view of the above-mentioned problem.
[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for detecting sewage infiltration in a landfill, comprising a plurality of slope guard plates, a bottom plate and a controller, wherein the controller is mounted on the upper end surface of the bottom plate, the interior of each of the slope guard plates is hollow, the upper end of the side wall of each of the slope guard plates is fixedly connected to a group of air intake pipes, and the same group of air intake pipes are commonly installed with a connecting pipe, the interior of each of the connecting pipes is provided with a heating component, and each of the connecting pipes is commonly connected to a blast component, the lower end of the side wall of each of the slope guard plates is plugged with a group of detachable lower fixing rods, and the side wall of each lower fixing rod is provided with an air intake groove, and each of the air intake grooves is An air inlet hole connected to the inside of the slope guard plate is provided, and a plurality of exhaust holes are provided on the groove wall of the air inlet groove located on the outside of the slope guard plate. A group of detachable upper fixing rods are inserted at the upper end of the side wall of each slope guard plate, and an air outlet groove is provided on the side wall of each upper fixing rod, and a plurality of reflux holes are provided on the lower groove wall of each air outlet groove. A volatility detection mechanism is installed together with the upper fixing rods in the same group, and each of the volatility detection mechanisms is installed with a suction mechanism. Each of the volatility detection mechanisms is also connected to an exhaust gas absorption mechanism, and the suction mechanism is installed with a trigger mechanism electrically connected to the volatility detection mechanism, and a water accumulation starting mechanism is installed together with the lower fixing rods in the same group.
[0007] Preferably, each of the heating components comprises a support frame fixedly arranged inside the connecting pipe, and an electric heating rod is fixedly mounted on the side wall of the support frame, and each of the electric heating rods is electrically connected to the controller.
[0008] Preferably, the blowing assembly includes a blower fixedly mounted on the end surface of the base plate, the air inlet end of the blower is fixedly connected to an air suction pipe, the output end of the blower is fixedly connected to an air supply pipe, and the air supply pipe is connected to a connecting pipe on the same side, two adjacent connecting pipes are commonly fixedly connected to a first connecting hose, one end of the air supply pipe away from the blower is sealed, and the blower is electrically connected to a controller.
[0009] Preferably, each of the volatile detection mechanisms includes a hollow plate arranged on one side of the slope guard plate, the rod end of each of the upper fixed rods is fixedly connected to a bent pipe, and each bent pipe is connected to the hollow plate on the same side, and a gas integrated detector and a humidity detector are fixedly plugged into the end surface of the hollow plate, the detection ends of the gas integrated detector and the humidity detector are arranged inside the hollow plate, and the gas integrated detector and the humidity detector are electrically connected to the controller.
[0010] Preferably, each of the suction mechanisms includes an air pump arranged on one side of the hollow plate, and the suction end of the air pump and the hollow plate are fixedly connected to a suction pipe, the output end of the air pump is fixedly connected to an air supply pipe, and the air pump is electrically connected to a controller.
[0011] Preferably, the exhaust gas absorption mechanism includes a transverse tube arranged above each air pump, two adjacent transverse tubes are fixedly connected to a second connecting hose, the transverse tube close to the bottom plate is fixedly connected to an exhaust gas outlet pipe, and one end of the transverse tube away from the exhaust gas outlet pipe is sealed, a sealing partition is installed inside each hollow plate, and a circular hole is opened on the side wall of the sealing partition, a first normally open solenoid valve is installed inside the circular hole, and a first normally closed solenoid valve is installed inside each bent pipe, each of the first normally open solenoid valves and each first normally closed solenoid valve are electrically connected to the controller, and a plurality of suction heads are fixedly plugged into the side wall of the hollow plate away from the suction pipe.
[0012] Preferably, each of the trigger mechanisms includes a hollow block arranged on one side of the transverse tube, the hollow block and the gas pipe are fixedly connected to a shunt inlet pipe, a conical hole is opened on the side wall of the hollow block, the hollow block and the transverse tube are fixedly connected to a shunt outlet pipe, and the shunt outlet pipe is connected to the conical hole, an air pressure switch is fixedly provided inside the hollow block, a second normally closed solenoid valve is provided inside the shunt inlet pipe, a one-way valve is provided inside the shunt outlet pipe, a second normally open solenoid valve is installed inside the gas pipe at a position above the shunt inlet pipe, and the second normally closed solenoid valve, the second normally open solenoid valve and the air pressure switch are all electrically connected to the controller.
[0013] Preferably, each of the water accumulation starting mechanisms includes a hygroscopic sponge strip filled inside the lower fixed rod, and one end of the hygroscopic sponge strip extends to the interior of the slope guard plate, a leakage hole is opened at the bottom of the slope guard plate, and a pressure valve is installed inside the leakage hole, a capillary tube is fixedly inserted at the bottom of the hollow plate, and the capillary tube is connected to the interior of the slope guard plate, a third normally open solenoid valve connected in series with the first normally open solenoid valve is installed inside the capillary tube, and the third normally open solenoid valve is electrically connected to the controller.
[0014] Compared with the existing technology, the advantages of a device for detecting landfill sewage infiltration are:
[0015] By setting up multiple slope guard plates, bottom plates, controllers, air inlet pipes, connecting pipes, heating components, air blowing mechanisms, lower fixed rods, air inlet grooves, air inlet holes, exhaust holes, upper fixed rods, air outlet grooves, reflux holes and volatilization detection mechanisms, the slopes of the landfill can be reinforced through the slope guard plates, lower fixed rods and upper fixed rods. While improving the stability of the slope, the possibility of garbage waste liquid infiltration can be reduced. By introducing high-temperature air into the slope of the landfill, the high-temperature air can assist the volatilization of the garbage leachate. By conducting online detection of the waste gas in the volatilized gas, the garbage waste liquid infiltration phenomenon at the corresponding position of the slope guard plate can be quickly measured. The detection coverage is wide and the depth is large, which is convenient for full and comprehensive infiltration sewage detection on the slopes around the landfill, and it is convenient for personnel to locate the position of the infiltration point.
[0016] Through the mutual cooperation of the suction mechanism and the waste gas recovery mechanism, the suction mechanism can ensure that the air inside the slope soil can be discharged in time, ensuring the accuracy of the detection of leachate inside the slope. In conjunction with the waste gas recovery mechanism, waste gas can be absorbed at the landfill when no detection is required.
[0017] The trigger mechanism can avoid the false triggering of garbage and sewage infiltration caused by the original garbage decomposition waste gas in the slope soil, thereby improving the accuracy of sewage leakage prompts. The water accumulation starting mechanism can assist the sewage leaking from the slope to flow back into the landfill, reducing the possibility of sewage overflow and spread. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a device for detecting the infiltration of sewage in a landfill provided by the present invention;
[0019] Figure 2 It is a schematic diagram of the side view connection structure of two adjacent slope guard plates of a device for detecting sewage infiltration in a landfill provided by the present invention;
[0020] Figure 3 It is a schematic diagram of the connection structure between the lower fixing rod and the slope guard plate of a device for detecting the infiltration of sewage in a garbage landfill provided by the present invention;
[0021] Figure 4 The invention provides a device for detecting the infiltration of sewage in a landfill. Figure 3 A magnified view of the structure of part A;
[0022] Figure 5 It is a schematic diagram of the connection structure between the upper fixing rod and the slope guard plate of a device for detecting the infiltration of sewage in a garbage landfill provided by the present invention;
[0023] Figure 6 The invention provides a device for detecting the infiltration of sewage in a landfill. Figure 5 A magnified view of the structure of part B;
[0024] Figure 7 The present invention provides a schematic diagram of the internal structure of a hollow block of a device for detecting sewage infiltration in a landfill.
[0025] In the figure: 1 slope guard plate, 2 bottom plate, 3 controller, 4 air inlet pipe, 5 connecting pipe, 6 heating component, 61 support frame, 62 electric heating rod, 7 blowing component, 71 blower, 72 suction pipe, 73 air supply pipe, 74 first connecting hose, 8 lower fixing rod, 9 air inlet groove, 10 air inlet hole, 11 exhaust hole, 12 upper fixing rod, 13 air outlet groove, 14 reflux hole, 15 volatilization detection mechanism, 151 hollow plate, 152 elbow, 153 gas comprehensive detector, 154 humidity detector, 16 suction mechanism, 161 air pump, 162 suction pipe, 163 air supply pipe, 17 exhaust gas Absorption mechanism, 171 horizontal pipe, 172 second connecting hose, 173 exhaust gas outlet pipe, 174 sealing partition, 175 circular hole, 176 first normally open solenoid valve, 177 first normally closed solenoid valve, 178 suction head, 18 trigger mechanism, 181 hollow block, 182 diversion inlet pipe, 183 conical hole, 184 diversion outlet pipe, 185 air pressure switch, 186 second normally closed solenoid valve, 187 one-way valve, 188 second normally open solenoid valve, 19 water accumulation starting mechanism, 191 moisture-absorbing sponge strip, 192 third normally open solenoid valve, 193 leakage hole, 194 pressure valve, 195 capillary tube. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0027] like Figure 1-Figure 7 As shown, a device for detecting sewage infiltration in a landfill comprises a plurality of slope guard plates 1, a bottom plate 2 and a controller 3, wherein the controller 3 is mounted on the upper end surface of the bottom plate 2, wherein the interior of each slope guard plate 1 is hollow, and a group of air intake pipes 4 are fixedly connected to the upper end of the side wall of each slope guard plate 1, and a connecting pipe 5 is installed together with the same group of air intake pipes 4, wherein a heating assembly 6 is arranged inside each connecting pipe 5, and each heating assembly 6 comprises a support frame 61 fixedly arranged inside the connecting pipe 5, and an electric heating rod 62 is fixedly mounted on the side wall of the support frame 61, and each electric heating rod 62 is electrically connected to the controller 3, and the electric heating rod 62 can heat the air.
[0028] Each connecting pipe 5 is commonly connected to a blower assembly 7, and the blower assembly 7 includes a blower 71 fixedly mounted on the end surface of the base plate 2, an air inlet end of the blower 71 is fixedly connected to an air suction pipe 72, an output end of the blower 71 is fixedly connected to an air delivery pipe 73, and the air delivery pipe 73 is connected to the connecting pipe 5 on the same side, and a first connecting hose 74 is commonly fixedly connected between two adjacent connecting pipes 5, one end of the air delivery pipe 73 away from the blower 71 is sealed, the blower 71 is electrically connected to the controller 3, and the air suction pipe 72 is installed with a long pipe, the air inlet end of the pipe is far away from the range of the landfill, and the air sucked in does not contain exhaust gas emitted from the landfill.
[0029] A group of detachable lower fixing rods 8 are inserted at the lower end of the side wall of each slope guard plate 1, and an air inlet groove 9 is opened on the side wall of each lower fixing rod 8, and a sealing plug (not shown in the figure) is threadedly connected at the notch of the air inlet groove 9 to prevent air flow from leaking from here, and each air inlet groove 9 is opened with an air inlet hole 10 connected to the inside of the slope guard plate 1, and a plurality of exhaust holes 11 are opened on the groove wall of the air inlet groove 9 located on the outside of the slope guard plate 1, and a group of detachable upper fixing rods 12 are inserted at the upper end of the side wall of each slope guard plate 1, and an air outlet groove 13 is opened on the side wall of each upper fixing rod 12, and a plurality of reflux holes 14 are opened on the lower side groove wall of each air outlet groove 13, and a volatilization detection mechanism 15 is installed together with the upper fixing rods 12 of the same group, and each volatilization detection mechanism 15 includes a hollow plate 151 arranged on one side of the slope guard plate 1, and each The rod ends of the upper fixed rod 12 are fixedly connected with a bend pipe 152, and each bend pipe 152 is connected to the hollow plate 151 on the same side. The end surface of the hollow plate 151 is fixedly plugged with a gas integrated detector 153 and a humidity detector 154. The detection ends of the gas integrated detector 153 and the humidity detector 154 are arranged inside the hollow plate 151. The gas integrated detector 153 and the humidity detector 154 are both electrically connected to the controller 3. When the gas integrated detector 153 and the humidity detector 154 detect that the exhaust gas concentration and humidity exceed the standard, they can output an electrical signal to the controller 3. This is an existing mature technology, so it will not be elaborated here. Among them, the position where the upper fixed rod 12 and the lower fixed rod 8 are slidably connected to the slope guard plate 1 is provided with a sealing structure (not shown in the figure), such as a sealing ring, which is used to prevent airflow from leaking from the connection position.
[0030] Each volatilization detection mechanism 15 is equipped with a suction mechanism 16, and each suction mechanism 16 includes an air pump 161 arranged on one side of the hollow plate 151, and the suction end of the air pump 161 and the hollow plate 151 are fixedly connected with a suction pipe 162, and the output end of the air pump 161 is fixedly connected with an air supply pipe 163. The air pump 161 is electrically connected to the controller 3. When the air pump 161 is working, it can suck in air through the suction pipe 162 and discharge it through the air supply pipe 163.
[0031] Each volatile detection mechanism 15 is also commonly connected to an exhaust gas absorption mechanism 17, and the exhaust gas absorption mechanism 17 includes a transverse pipe 171 arranged above each air pump 161, and two adjacent transverse pipes 171 are commonly fixedly connected to a second connecting hose 172, and the transverse pipe 171 close to the bottom plate 2 is fixedly connected to an exhaust gas outlet pipe 173, and one end of the transverse pipe 171 away from the exhaust gas outlet pipe 173 is sealed, and each hollow plate 151 is installed with a sealing partition 174 inside, and the side wall of the sealing partition 174 is provided with a A circular hole 175, a first normally open solenoid valve 176 is installed inside the circular hole 175, a first normally closed solenoid valve 177 is installed inside each curved pipe 152, each first normally open solenoid valve 176 and each first normally closed solenoid valve 177 are electrically connected to the controller 3, a plurality of suction heads 178 are fixedly connected to the side wall of the hollow plate 151 away from the suction pipe 162, the exhaust gas outlet pipe 173 is connected to the air inlet end of the external exhaust gas treatment system, and the exhaust gas treatment system is used to treat the exhaust gas generated during the decomposition of garbage.
[0032] The suction mechanism 16 is provided with a trigger mechanism 18 electrically connected to the volatilization detection mechanism 15. Each trigger mechanism 18 includes a hollow block 181 arranged on one side of the transverse tube 171. The hollow block 181 and the gas delivery tube 163 are fixedly connected to a shunt inlet pipe 182. A conical hole 183 is provided on the side wall of the hollow block 181. The hollow block 181 and the transverse tube 171 are fixedly connected to a shunt outlet pipe 184, and the shunt outlet pipe 184 is connected to the conical hole 183. An air pressure switch 185 is fixedly provided inside the hollow block 181. A second normally closed solenoid valve 186 is provided inside, a one-way valve 187 is provided inside the shunt outlet pipe 184, and a second normally open solenoid valve 188 is installed inside the gas supply pipe 163 at a position above the shunt inlet pipe 182. The second normally closed solenoid valve 186, the second normally open solenoid valve 188 and the air pressure switch 185 are all electrically connected to the controller 3. Under the action of the external high air pressure, the moving contact of the air pressure switch 185 will be pressed down and closed. After the air pressure is restored, the moving contact of the air pressure switch 185 will rebound and reset. This is an existing mature technology, so it will not be elaborated here.
[0033] The same group of lower fixed rods 8 are commonly equipped with a water accumulation starting mechanism 19, and each water accumulation starting mechanism 19 includes a hygroscopic sponge strip 191 filled in the lower fixed rod 8, and one end of the hygroscopic sponge strip 191 extends to the interior of the slope guard plate 1, a leakage hole 193 is opened at the bottom of the slope guard plate 1, and a pressure valve 194 is installed inside the leakage hole 193, a capillary 195 is fixedly inserted at the bottom of the hollow plate 151, and the capillary 195 is connected to the interior of the slope guard plate 1, and a third normally open solenoid valve 192 connected in series with the first normally open solenoid valve 176 is installed inside the capillary 195, and the third normally open solenoid valve 192 is electrically connected to the controller 3, and the hygroscopic sponge strip 191 has good moisture absorption capacity and high temperature resistance, and the collected waste liquid can be introduced into the landfill through the leakage hole 193.
[0034] The operating principle of the present invention is now described as follows: when constructing a landfill, after laying waterproof materials on the slopes and the bottom of the pit, the slope guard plates 1 are installed on the various slopes of the landfill in sequence, and the upper fixing rods 12 and the lower fixing rods 8 are inserted into the soil layer of the slope through the slope guard plates 1. The slope guard plates 1 can be used to reinforce the slopes of the landfill and improve the stability of the waterproof materials. At the same time, the waterproof materials can be protected against pressure to reduce the possibility of leakage of garbage filtrate through the slopes. Then the controller 3 is connected to the external power supply circuit, and a long pipe is installed on the suction pipe 72 (the air inlet end of the pipe is far away from the scope of the landfill, and the air sucked in does not contain the waste gas emitted from the landfill). Subsequently, the waste gas outlet pipe 173 is connected to the air inlet end of the waste gas treatment system at the landfill (the waste gas treatment system is specifically used to purify the waste gas generated when the landfill garbage is decomposed to prevent the waste gas from affecting the surrounding air environment), and then the controller 3 is started;
[0035] After the controller 3 is started, the leakage detection of the waste liquid of the slope garbage is performed once at a certain interval (the interval can be adjusted by the controller 3, such as every 48 hours). When the controller 3 starts the leakage detection of the waste liquid of the slope garbage, the controller 3 will immediately control the blower 71 to work, and at the same time control the operation of each electric heating rod 62 (the heating temperature of the electric heating rod 62 is within the range of 100°C to 120°C). At this time, the blower 71 can inhale the external air, and send the airflow into each slope guard plate 1 through the air delivery pipe 73, each first connecting hose 74, the connecting pipe 5 and the air inlet pipe 4. When the airflow passes through the connecting pipe 5, the airflow will be heated by the electric heating rod 62, and the heated airflow passes through the slope guard plate 1. The air inlet 10 will enter the air inlet groove 9 of each lower fixed rod 8, and then the hot air will be discharged into the soil layer around the slope of the landfill through the exhaust hole 11. After the airflow comes into contact with the soil, if there is a leakage point of waste liquid on the slope, the leaked waste liquid will be affected by the hot air and the waste liquid will begin to volatilize, and the wind will carry the volatilized waste gas to the surface. After the controller 3 starts the blower 71, it will simultaneously start each air pump 161, each first normally open solenoid valve 176, each third normally open solenoid valve 192 and each first normally closed solenoid valve 177. At this time, the suction end of the air pump 161 will suck the air inside the hollow plate 151 on the same side through the suction pipe 162, and the hollow plate 151 will be sucked in through the bend 152, the air outlet groove 13 and the reflux The hole 14 sucks out the air inside the soil layer of the slope. Since the lower fixed rod 8 sends hot air into the soil layer, and the upper fixed rod 12 absorbs the air in the soil layer, the air flow will flow along the soil at the bottom of the slope to the soil at the upper part of the slope, and will eventually be sucked into the hollow plate 151 by the upper fixed rod 12. If there is a garbage waste liquid leakage point on the slope of the landfill, the amount of garbage waste liquid in the soil at this location is relatively large. At this time, the concentration of waste gas volatilized by heat is high, so the concentration of waste gas in the wind flow entering the hollow plate 151 is relatively large. The wind flow entering the hollow plate 151 will pass through the humidity detector 154 and the gas comprehensive detector 153. If the humidity in the wind flow is high, the moisture in the wind flow and the absorption inside the detection head of the humidity detector 154 will be After contacting with wet materials (such as polyimide materials in high molecular polymers), water molecules will interact with polyimide molecules, increasing the ionic conductive components in the polyimide material, resulting in a decrease in its resistance value. The higher the humidity, the lower its resistance. Conversely, when the humidity decreases, the number of water molecules decreases, and the ionic conductive components in the polyimide material decrease accordingly, then its resistance value increases. The humidity detector 154 can output an electrical signal to the controller 3 after the humidity reaches a preset value (for example, the humidity reaches more than 50%), and the gas integrated detector 153 has multiple gas detection probes (such as hydrogen sulfide gas probe, ammonia gas probe, methane gas probe). When the wind flow passes through the gas detection probe of the gas integrated detector 153 (the flow rate of the wind flow is 0.5 meters per second to 1 meter per second), the gas detection probe of the gas comprehensive detector 153 will emit infrared rays of a specific wavelength, such as methane exhaust gas. When the infrared rays pass through methane, part of them will be absorbed by methane. By measuring the intensity of the infrared rays after being absorbed and attenuated by methane, the concentration of methane can be measured. After detecting that the concentration of at least one exhaust gas in the wind flow exceeds the standard, the gas comprehensive detector 153 will also output an electrical signal to the controller 3;.
[0036] When the controller 3 receives the electrical signals output by the humidity detector 154 and the gas comprehensive detector 153 at the same time, the controller 3 will control the second normally open solenoid valve 188 and the second normally closed solenoid valve 186 to work. At this time, the airflow delivered by the air pump 161 will enter the hollow block 181. If the electrical signals output by the humidity detector 154 and the gas comprehensive detector 153 received by the controller 3 continue to be maintained (there is a lot of garbage leachate in the soil, and although the garbage leachate is volatilized, the leachate in the garbage continues to seep out, so the humidity detector 154 and the gas comprehensive detector 1 53 output electrical signal can be maintained continuously). At this time, since the air pump 161 continuously delivers airflow to the inside of the hollow block 181 through the shunt inlet pipe 182, the air entering the inside of the hollow block 181 cannot be discharged in time through the conical hole 183 and the shunt outlet pipe 184. At this time, the air pressure inside the hollow block 181 will continue to increase until the moving contact of the air pressure switch 185 is back-pressed and closed under the action of the air pressure. After the controller 3 receives the closing electrical signal of the air pressure switch 185, it indicates that there is a waste liquid leakage point on the slope of the landfill. At this time, the controller 3 will The remote terminal sends an alarm signal by means of line communication, and sends the corresponding position information of the humidity detector 154 and the gas integrated detector 153 to the remote terminal. The relevant personnel can know the location of the garbage waste liquid leakage according to the position information, and then take corresponding preventive measures. If there is no garbage waste liquid leakage on the slope of the landfill, only some waste gas generated by the decomposition of garbage remains in the soil. At this time, under the action of the flowing hot air flow, these waste gases are discharged into the hollow block 181, although it will also make the gas integrated detector 153 An electrical signal is output to the controller 3, but as the exhaust gas is discharged and the soil gradually becomes dry, the soil water and exhaust gas are insufficiently replenished, so the electrical signals output by the gas integrated detector 153 and the humidity detector 154 cannot be continuously maintained. At this time, the air entering the hollow block 181 can be discharged in time through the conical hole 183 and the diversion outlet pipe 184, so the moving contact of the air pressure switch 185 cannot be closed under the action of air pressure. Therefore, the controller 3 will not receive the closing electrical signal of the air pressure switch 185, so it can avoid the phenomenon of false alarm of garbage waste liquid leakage;
[0037] The airflow extracted by the air pump 161 will be transported to the exhaust gas outlet pipe 173 through each cross pipe 171 and each second connecting hose 172, and finally enter the exhaust gas treatment system through the exhaust gas outlet pipe 173. The exhaust gas treatment system can treat the exhaust gas (the exhaust gas treatment system can purify the input exhaust gas, for example, first spray the incoming exhaust gas to wash away the solid particles in the exhaust gas, and then the exhaust gas enters the adsorption chamber, and the exhaust gas is further purified by the adsorption filler in the adsorption chamber, and then after treatment such as sterilization, the exhaust gas that meets the emission standards can be discharged after testing), reducing the impact on the surrounding air environment. After the blower 71 and the air pump 161 have been working for 20 minutes, the single detection of the leakage of waste liquid from the slope garbage is completed. Subsequently, the controller 3 will control the blower 71, the first normally open solenoid valve 176, the third normally open solenoid valve 192, the first normally closed solenoid valve 177, the second normally open solenoid valve 188, the second normally closed solenoid valve 186, the gas comprehensive detector 153 and the humidity detector 154 to stop working, and control the air pump 161 to continue working. At this time, the suction end of the air pump 161 will generate negative pressure suction at the air inlet end of each suction head 178 through the suction pipe 162, the hollow block 181 and the circular hole 175 of the sealing partition 174, so that the suction end of each suction head 178 can generate negative pressure suction, thereby The waste gas generated when the garbage in the landfill is decomposed is sucked in and finally transported to the inside of the waste gas treatment system through the waste gas outlet pipe 173. At the same time, since the third normally open solenoid valve 192 is in a disconnected open state, under the suction action of the air pump 161, through the capillary 195, the slope guard plate 1, the air inlet 10 and the air inlet groove 9, negative pressure suction can be generated at each exhaust hole 11. At this time, under the action of negative pressure suction, part of the air in the soil will enter the lower fixed rod 8 and finally be transported to the waste gas outlet pipe 173 through the air pump 161 for discharge. If there is leakage of waste liquid on the slope, the waste liquid will also be discharged under the action of the downstream airflow and negative pressure suction. It enters the air inlet groove 9 and is absorbed by the hygroscopic sponge strip 191. As the hygroscopic sponge strip 191 absorbs more and more water, under the action of gravity, dripping will occur at one end of the hygroscopic sponge strip 191 located inside the slope guard plate 1, so that the garbage waste liquid in the soil can be introduced into the slope guard plate 1. As the garbage waste liquid inside the slope guard plate 1 increases, under the action of gravity of the waste liquid, the valve plate of the pressure valve 194 is pressed down and pushed open. At this time, the waste liquid inside the slope guard plate 1 will flow back into the landfill, so that the leaked garbage waste liquid can flow back to the landfill, reducing the possibility of the garbage waste liquid leaking through the slope spreading outward.
[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for detecting sewage infiltration in a landfill, comprising a plurality of slope protection plates (1), a bottom plate (2) and a controller (3), characterized in that: The controller (3) is mounted on the upper end surface of the bottom plate (2); the interior of each of the slope guard plates (1) is hollow; the upper end of the side wall of each of the slope guard plates (1) is fixedly connected to a group of air intake pipes (4); the same group of air intake pipes (4) are commonly installed with a connecting pipe (5); the interior of each of the connecting pipes (5) is provided with a heating component (6); and each of the connecting pipes (5) is commonly connected to a blast component (7); the lower end of the side wall of each of the slope guard plates (1) is plugged with a group of detachable lower fixing rods (8); the side wall of each of the lower fixing rods (8) is provided with an air intake groove (9); each of the air intake grooves (9) is provided with an air intake hole (10) connected to the interior of the slope guard plate (1); the air intake groove (9) is located on the groove wall outside the slope guard plate (1). A plurality of exhaust holes (11) are provided, a group of detachable upper fixing rods (12) are plugged into the upper end of the side wall of each of the slope guard plates (1), and a gas outlet groove (13) is provided on the side wall of each of the upper fixing rods (12), and a plurality of return holes (14) are provided on the lower groove wall of each of the gas outlet grooves (13); a volatilization detection mechanism (15) is installed on the upper fixing rods (12) of the same group, and each of the volatilization detection mechanisms (15) is installed with a suction mechanism (16); each of the volatilization detection mechanisms (15) is also connected to an exhaust gas absorption mechanism (17); the suction mechanism (16) is installed with a trigger mechanism (18) electrically connected to the volatilization detection mechanism (15); and a water accumulation start mechanism (19) is installed on the lower fixing rods (8) of the same group; Each of the volatilization detection mechanisms (15) comprises a hollow plate (151) arranged on one side of the slope guard plate (1); a rod end of each of the upper fixed rods (12) is fixedly connected to a bend pipe (152), and each bend pipe (152) is connected to the hollow plate (151) on the same side; a gas integrated detector (153) and a humidity detector (154) are fixedly plugged into the end surface of the hollow plate (151); detection ends of the gas integrated detector (153) and the humidity detector (154) are arranged inside the hollow plate (151); and the gas integrated detector (153) and the humidity detector (154) are electrically connected to the controller (3); Each of the suction mechanisms (16) comprises an air pump (161) arranged on one side of the hollow plate (151), and a suction end of the air pump (161) and the hollow plate (151) are fixedly connected to a suction pipe (162), an output end of the air pump (161) is fixedly connected to an air delivery pipe (163), and the air pump (161) is electrically connected to a controller (3); The exhaust gas absorption mechanism (17) comprises a transverse pipe (171) arranged above each air pump (161); two adjacent transverse pipes (171) are fixedly connected to a second connecting hose (172); the transverse pipe (171) close to the bottom plate (2) is fixedly connected to an exhaust gas outlet pipe (173); one end of the transverse pipe (171) away from the exhaust gas outlet pipe (173) is sealed; and a sealing partition (174) is installed inside each hollow plate (151), and the sealing partition (174) is sealed. A circular hole (175) is formed on the side wall of the partition (174); a first normally open solenoid valve (176) is installed inside the circular hole (175); a first normally closed solenoid valve (177) is installed inside each of the bent pipes (152); each of the first normally open solenoid valves (176) and each of the first normally closed solenoid valves (177) are electrically connected to a controller (3); and a plurality of suction heads (178) are fixedly connected to the side wall of the hollow plate (151) on a side away from the suction pipe (162); Each of the trigger mechanisms (18) comprises a hollow block (181) arranged on one side of the transverse tube (171); the hollow block (181) and the gas delivery tube (163) are fixedly connected to a flow-dividing inlet pipe (182); a conical hole (183) is provided on the side wall of the hollow block (181); the hollow block (181) and the transverse tube (171) are fixedly connected to a flow-dividing outlet pipe (184); the flow-dividing outlet pipe (184) is connected to the conical hole (183); and the hollow block (181) A gas pressure switch (185) is fixedly provided inside the said shunt inlet pipe (182), a second normally closed solenoid valve (186) is provided inside the said shunt outlet pipe (184), a one-way valve (187) is provided inside the said shunt outlet pipe (184), a second normally open solenoid valve (188) is installed inside the said gas supply pipe (163) at a position above the said shunt inlet pipe (182), and the said second normally closed solenoid valve (186), the second normally open solenoid valve (188) and the gas pressure switch (185) are all electrically connected to the controller (3); Each of the water accumulation starting mechanisms (19) comprises a moisture absorbing sponge strip (191) filled inside the lower fixing rod (8), and one end of the moisture absorbing sponge strip (191) extends to the inside of the slope guard plate (1), a leakage hole (193) is provided at the bottom of the slope guard plate (1), and a pressure valve (194) is installed inside the leakage hole (193), a capillary tube (195) is fixedly plugged at the bottom of the hollow plate (151), and the capillary tube (195) is connected to the inside of the slope guard plate (1), and a third normally open solenoid valve (192) connected in series with the first normally open solenoid valve (176) is installed inside the capillary tube (195), and the third normally open solenoid valve (192) is electrically connected to the controller (3).
2. The device for detecting landfill sewage infiltration according to claim 1, characterized in that: Each of the heating components (6) comprises a support frame (61) fixedly arranged inside the connecting pipe (5), and an electric heating rod (62) is fixedly mounted on the side wall of the support frame (61), and each of the electric heating rods (62) is electrically connected to the controller (3).
3. The device for detecting landfill sewage infiltration according to claim 1, characterized in that: The air blowing assembly (7) comprises a blower (71) fixedly mounted on the end surface of the bottom plate (2); an air inlet end of the blower (71) is fixedly connected to an air suction pipe (72); an output end of the blower (71) is fixedly connected to an air delivery pipe (73); the air delivery pipe (73) is connected to a connecting pipe (5) on the same side; two adjacent connecting pipes (5) are commonly fixedly connected to a first connecting hose (74); one end of the air delivery pipe (73) away from the blower (71) is sealed; and the blower (71) is electrically connected to a controller (3).