JP2005145479A - Collection device of liquid from automobile to be dismantled - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collection device of a large capacity capable of efficiently collecting liquid such as cooling water and gasoline from an automobile to be dismantled. <P>SOLUTION: The collection device of liquid from an automobile to be dismantled comprises a pneumatic-driven diaphragm pump 4 having flow passage change-over valves 2 and 3 on the suction side and the discharge side, a nozzle 1 which is used for both suction and discharge which is connected to the suction side thereof, a collection container 7, an in-flow pipe 8 connected to the collection container, and an out-flow pipe 9 connected to a bottom part of the collection container. The flow passage change-over valves 2 and 3 are changed over to a first connection mode in which the suction side of the diaphragm pump 4 is connected to the nozzle 1 and the discharge side is connected to the in-flow pipe 8 and the second connection mode in which the suction side is connected to the out-flow pipe 9 and the discharge side is connected to the nozzle 1. Preferably, a settling tank 5 and a filtering tank 6 which are flange-coupled across a barrel portion of a vertical cylindrical container are connected to the in-flow pipe 8 in series. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an apparatus for recovering cooling water or gasoline from a radiator or a gasoline tank of a car to be dismantled.

  If cooling water or gasoline remains in the radiator or gasoline tank of the car to be dismantled, the cooling water or gasoline remaining when these are dismantled will flow, causing environmental destruction and fire. Therefore, it is necessary to drain the remaining cooling water and gasoline before dismantling the radiator and gasoline tank.

In a general dismantling work site, this cooling water or gasoline sampling operation is performed by connecting a nozzle to the suction port of a pump with a recovery container connected to the discharge port and inserting the nozzle into the bottom of the radiator or gasoline tank. .
JP 7-208139 A Japanese Patent Laid-Open No. 11-157599

  However, in the conventional method, it takes time and time to collect cooling water and gasoline, and in a dismantling work site where the number of vehicles to be dismantled is several tens of vehicles per day, There was a problem that the collection efficiency became a bottleneck of dismantling work and the work efficiency could not be increased. On the other hand, the liquid recovery apparatus as proposed in Patent Document 1 has a problem that the apparatus cost is high and a large installation area is required.

  An object of the present invention is to provide a large-capacity recovery device that can efficiently recover liquids such as cooling water and gasoline from an automobile to be disassembled in a short time.

  A liquid recovery device from a dismantled automobile according to the invention described in claim 1 that has solved the above-mentioned problems includes a pneumatically driven diaphragm pump 4 having flow path switching valves 2 and 3 on the suction side and the discharge side, and the suction side thereof. A nozzle 1 that is also used for suction and discharge, a recovery container 7, an inflow line 8 connected to the recovery container, and an outflow line 9 connected to the bottom of the recovery container, The flow path switching valve has a first connection mode in which a suction side of the pump is connected to the nozzle and a discharge side is connected to the inflow conduit, and a suction side is connected to the outflow conduit and the discharge side is It switches to the 2nd connection aspect connected to a nozzle.

  The invention of claim 2 of the present application is the liquid recovery apparatus having the above-mentioned means, wherein a precipitation tank 5 and a filtration tank 6 which are flanged by transversely cutting a body portion of a vertical cylindrical container in the inflow conduit are connected in series. It is characterized by being.

  Furthermore, the invention of claim 3 of the present application is the liquid recovery apparatus provided with the precipitation tank 5 and the filtration tank 6. The precipitation tank 5 has partition plates 20 and 21 partitioning the tank fixed to one of the upper and lower tanks 5U. In the filtration tank 6, a strainer 27 is fixed to one of the upper and lower tanks 6L. In the collection container 7, an inclined pipe 29 having an upper end connected to the inflow conduit is inserted, and the inclined tank The pipe is provided with a plurality of through holes 31 arranged in the pipe axial direction on the upper peripheral surface thereof.

  In the recovery device of the present invention, since the pneumatically driven diaphragm pump 4 is used, the cooling water and gasoline of a dismantled automobile that is likely to contain dust can be extracted without damaging the pump, and the gasoline The risk of ignition when recovering can be avoided. Further, the flow path switching valves 2 and 3 are provided on the suction side and the discharge side of the pump so that the recovery liquid can flow into and out of the recovery container 7 with a single pump. Therefore, a recovery device using a large-capacity pump can be provided at a low cost.

  Cooling water contains coolant and other chemicals and requires specialized technology for processing, so the collected water is often handed over to an industrial waste disposal contractor, but gasoline has water and dust. By removing it, it can be reused as fuel. By connecting a sedimentation tank 5 made of a pressure vessel and a filtration tank 6 in series to the inflow line 8 to the recovery container 7, the gasoline from the dismantled automobile is recovered in the recovery container 7 in a state where dust and moisture are removed. Can do. By using a ready-made pressure vessel such as a propane gas cylinder as a container for the precipitation tank 5 and the filtration tank 6, the apparatus can be provided at low cost. In addition, by providing the partition tanks 20 and 21 in the precipitation tank and the strainer 27 in the filtration tank with the above structure, it is possible to manufacture a tank having excellent sedimentation effect and filtration effect.

  In the recovery device for recovering gasoline, an inclined pipe 29 having an upper end connected to the inflow conduit 8 is provided in the recovery container 7, and a through-hole is provided at an appropriate interval along the pipe axis on the circumferential surface facing upward of the inclined pipe. If 31 is provided, the gasoline flows through the lower section of the inclined pipe and flows out from the lower through-hole, while the air and steam contained in the gasoline are discharged from the through-hole 31 above the inclined pipe 29 through the recovery container 7. Therefore, it is possible to prevent the inflowing gasoline from bubbling the gasoline accumulated in the recovery container 7 and generating gasoline vapor.

  FIG. 1 is a diagram showing an example of the liquid recovery apparatus of the present invention used for recovering gasoline from a dismantled automobile. In the figure, 1 is a nozzle, 2 and 3 are 3-way valves, 4 is a pneumatically driven diagram pump, 5 is a sedimentation tank, 6 is a filtration tank, 7 is a recovery vessel, 8 is an inflow line, and 9 and 10 are outflow pipes. Road.

  The nozzle 1 is made of an aluminum pipe and is connected to a hose 13 connected to a grip 12 via a coupler 11 attached to the base end thereof. This hose is connected to a cheese 14 connected to a port of the suction side three-way valve 2. Has been. The grip 12 is provided with a push button 15 of a remote switch. The nozzle 1 is detachable by a coupler 11 and can be replaced with one having a different diameter or one having a bent tip as required.

  The diaphragm pump 4 is connected between the two three-way valves 2 and 3 on the suction side and the discharge side, and an open / close valve 17 that is turned on / off by the remote switch is connected to an air pipe 16 that drives the pump. ing. The port of the suction side three-way valve 2 is connected to the nozzle 1, the suction port of the pump 4, and the bottom of the collection container 7. The port of the discharge side three-way valve 3 is connected to the discharge port of the pump 4, the upper part of the precipitation tank 5, and the cheese 14.

  The sedimentation tank 5 is obtained by transversely cutting a 100 liter propane cylinder at the top of the cylinder and welding the fastening flanges 18 and 19 to the cut ends. The upper tank 5U has partition walls 20 and 21 for partitioning the tank. The upper end is fixed by welding. Of the three partition walls 20 and 21, the partition walls 20 on both sides are provided with a length that does not reach the bottom of the tank, and the central partition 20 reaches the bottom of the tank and has an opening at the upper end. Packing 22 (FIG. 3) is attached to the peripheral edge in contact with the inner wall of the lower tank 5L of these partition walls to close the gap between the partition walls 20, 21 and the inner surface of the lower tank. Therefore, an internal passage 23 that reciprocates up and down in the tank is formed by the partition walls 20 and 21. A drain cock 24 is attached to the lower end of the sedimentation tank 5, and an air pipe 26 communicating with the upper part of the collection container 7 through an automatic air vent valve 25 is connected to the cap portion at the upper end. The end of the internal passage 23 of the precipitation tank is connected to the upper part of the filtration tank 6 at the upper part of the tank.

  The filtration tank 6 is obtained by transversely cutting a 100-liter propane container similar to the precipitation tank below its trunk and welding the fastening flanges 18 and 19, and a strainer 27 is erected on the lower tank 6L. . The strainer 27 of the embodiment is a two-stage stacking of air strainers for trucks. The lower tank 6L is provided with an inner pipe 28 communicating with the inside of the strainer, and the inner pipe is connected to the upper end of an inclined pipe 29 provided in the collection container 7. The filtration tank 6 is provided with a drain cock 24 at the lower stage, similarly to the precipitation tank 5, and an air pipe 30 communicating with the upper part of the collection container 7 through an automatic air vent valve 25 at the upper end. .

  The collection container 7 is a cylindrical metal container, and is provided with an inclined pipe 29 that obliquely penetrates the container. In this inclined pipe 29, a metal pipe provided with through holes 31 at regular intervals in the axial direction on the circumferential surface facing the upper side with the lower end closed is inserted so as to penetrate the collection container 7, and the through part is welded. It is sealed. An air vent 32 is provided in the upper part of the collection container 7, and the lower end is connected to the suction side three-way valve 2 by an outflow pipe 9.

  When removing gasoline from a gasoline tank of a dismantled car, it can be removed to some extent from the inlet provided in the tank, but in order to completely remove it, it may be necessary to break the gasoline tank. FIG. 4 is a view showing an example of a tool used for making a hole for inserting the nozzle 1 into a gasoline tank. Two spiral-shaped tools are formed on the peripheral surface of a cone 33 having a sharp tip made of tool steel. A cutting edge 34 is formed, and a square hole 35 is provided at the base end thereof. With the tip of this tool in contact with the peripheral wall of the gasoline tank, hit the base end of the tool with a hammer to insert the tip of the cone 33 into the wall of the gasoline tank, and then insert a handle into the square hole 35 to rotate the tool. As a result, a hole for extracting gasoline with a desired diameter is opened at a desired location of the tank.

  When removing gasoline from the demolished car, the three-way valves 2 and 3 are set in the direction shown in FIG. 1 so that the nozzle 1 communicates with the sedimentation tank 5 while the outflow lines 9 and 10 are closed. Then, the nozzle 1 is inserted into the tank from the injection port of the gasoline tank or the hole opened by the tool as shown in FIG. 4, the push button 15 of the remote switch is pushed, the on-off valve 17 is opened, and the diaphragm pump 4 is operated. As a result, the gasoline remaining in the tank is sucked and flows into the precipitation tank 5. In the sedimentation tank 5, the stepped surface of the flow path rapidly expands so that the sucked gasoline flows through the internal passage 23 at a slow flow rate, and dust having a large specific gravity settles on the bottom of the sedimentation tank 5.

  The gasoline that has passed through the settling tank 5 is guided to the filtration tank 6, filtered through the strainer 27, and then guided to the upper end of the inclined pipe 29 to flow down in the inclined pipe 29.

  When the gasoline is sucked by the nozzle 1, air and gasoline vapor are sucked into the nozzle 1 together. These gases are separated in the precipitation tank 5 and the filtration tank 6, passed through the automatic air vent valve 25, led to the upper part of the recovery container 7, and released into the atmosphere collectively by the air vent 32, but recovered together with gasoline. What has been sent to the container 7 is discharged from the upper through hole 31 to the upper part of the collection container 7 while flowing down the inclined pipe 29. On the other hand, gasoline flows through the inclined pipe 29 and flows out from the lower through hole 31 into the collection container 7. If the inclined pipe 29 is attached so that the lowermost through hole is opened near the bottom of the recovery container 7, in a general state, the gasoline liquid that has flowed down the inclined pipe 29 has accumulated in the recovery container 7. Since the fuel flows out under the surface, it is possible to minimize the inflowing gasoline from agitating and foaming the gasoline in the collection container, and to minimize the evaporation and scattering of the gasoline in the collection container 7.

  Since the pump 4 necessary for the suction of gasoline by the nozzle 1 can be turned on and off by a remote switch provided on the grip 12 of the nozzle, wasteful consumption of pump driving air can be avoided. The operator can efficiently perform the operation of sequentially removing gasoline from a large number of gasoline tanks while stopping the operation of the diaphragm pump 4 in a timely manner by operating the push button 15. Impurities accumulated at the bottom of the precipitation tank 5 and the filtration tank 6 can be discharged by opening the drain cocks 24, 24 in a timely manner. Since the gas containing gasoline vapor separated in the precipitation tank 5 and the filtration tank 6 is collected and discharged in the recovery container 7, it is easy to take odor and safety measures.

  When the gasoline recovered in the recovery container 7 flows out, the three-way valves 2 and 3 are switched in the direction shown in FIG. 2, the bottom of the recovery container 7 is connected to the suction side of the pump 4, and the discharge side of the pump 4 is the nozzle 1 to be connected. If the diaphragm pump 4 is operated by operating the grip push button 15 in this state, the gasoline in the collection container 7 flows out from the tip of the nozzle 1. Although it is conceivable that impurities remain in the nozzle 1 and the hose 13, these impurities can be washed if some initial gasoline flowing out of the recovery container 7 is returned to the gasoline tank being dismantled. The returned gasoline may be extracted when the next sampling operation is performed.

  The above is an example of gasoline recovery, but the radiator coolant can also be recovered using a similar device. If dust may remain in the recovered coolant, the precipitation tank 5 and the filtration tank 6 can be omitted, and the inclined pipe 29 of the recovery container can be omitted. Therefore, it is preferable to provide a device for extracting gasoline and a device for extracting cooling water separately.

  In extracting the cooling liquid, it is convenient to extract from the pipe connected to the radiator. At this time, as shown in FIG. 5, the oblique cut surface of the metal pipe 36 whose tip is scraped obliquely like an injection needle is closed with a metal plate 37 to sharpen the tip 38, and the metal plate 37 and its It is convenient to use a suction nozzle provided with a suction hole 39 so as to penetrate the metal pipe wall on the back surface. When the diaphragm pump 4 is operated by piercing and inserting the hose connected to the radiator with this nozzle, the coolant remaining in the radiator and the hose flows into the nozzle from the suction holes 39 on both sides of the nozzle 40, and the efficiency The cooling water can be extracted well.

A diagram showing an example of a gasoline extraction device The figure which shows the state of the flow-path switching valve when collect | recovering gasoline is discharged with the apparatus of FIG. 1 is a cross-sectional view of the precipitation tank of the apparatus of FIG. Side view showing an example of a tool for drilling holes in a gasoline tank The perspective view which shows an example of the nozzle for cooling water extraction

Explanation of symbols

1 Nozzle 2 3-way valve 3 3-way valve 4 Diaphragm pump 5 Sedimentation tank
5U upper tank 6 Filtration tank
6L Lower tank 7 Collection container 8 Inflow line 9 Outflow line
20 Bulkhead
21 Bulkhead
27 Strainer
29 Inclined pipe
31 Through hole

Claims (3)

  Pneumatically driven diaphragm pump (4) equipped with flow path switching valves (2, 3) on the suction side and the discharge side, a suction / discharge nozzle (1) connected to the suction side, and a recovery container (7) And an inflow line (8) connected to the recovery container and an outflow line (9) connected to the bottom of the recovery container, and the flow path switching valve has the suction side of the pump The first connection mode is connected to the nozzle and the discharge side is connected to the inflow conduit, and the second connection mode is connected to the outflow conduit and the discharge side is connected to the nozzle. , Liquid recovery device from dismantled cars.   The liquid recovery apparatus according to claim 1, wherein a precipitation tank (5) and a filtration tank (6), which are formed by transversely cutting a body portion of a vertical cylindrical container and fastening with a flange, are connected in series to the inflow pipe.   In the precipitation tank (5), a partition plate (20, 21) for partitioning the tank is fixed to one of the upper and lower tanks (5U), and a strainer (27) is installed in the upper and lower tanks in the filtration tank (6). An inclined pipe (29), which is fixed to one of the pipes (6L) and has an upper end connected to the inflow conduit in the collection container (7), is inserted into the pipe shaft on the upper peripheral surface. The liquid recovery apparatus according to claim 2, comprising a plurality of through holes (31) arranged in a direction.

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