KR20040037631A - Vehicle for cleaning oil tanks - Google Patents

Abstract

PURPOSE: A vehicle for cleaning an oil storage tank is provided to clean the oil storage tank conveniently and automatically by sucking sludge or water from the oil storage tank through a vacuum pump with moving easily. CONSTITUTION: A cleaning vehicle for an oil storage tank(100) is composed of a processing tank loading on the vehicle and separating and eliminating impurities from oil by sucking oil from the oil storage tank; a suction pipe moving oil from the oil storage tank to the processing tank; a discharge pipe discharging processed material from the processing tank; a vacuum unit(300) sucking oil from the oil storage tank through the suction pipe by generating negative pressure in the processing tank; and a power supply unit supplying power to the vacuum unit. The processing tank is divided into purifying chambers and sludge processing chambers by partitions. A filter(510) is mounted in a hose(500) connected to the discharge pipe to return oil to the oil storage tank after filtering.

Description

Vehicle for cleaning oil tanks

The present invention relates to a vehicle for cleaning the inside of an oil storage tank, and more particularly, to mount the cleaning equipment and to move freely to the place that needs to be cleaned and to clean the sludge or water accumulated in the oil storage tank with the oil. Oil storage tanks for cleaning vehicles.

In general, various businesses handling oil, including gas stations, are legally mandated to install and use wastewater treatment devices, and maintain a certain level of cleanliness of tanks storing oil. Tanks used to store oil at such gas stations and various factories have sludge build up and water flow in and mix with the oil as time passes. Therefore, these oil storage tanks should be cleaned regularly after a certain period of time.

Conventionally, the oil mixed with water in the oil storage tank is pumped and moved to a place where it can be separated and treated, and the sludge accumulated on the bottom of the tank is lifted to the ground and left in the air for a certain period of time to remove moisture. After the treatment, or by removing the water from the sludge with a separate sludge treatment device to make a cake state and transported to a landfill and landfill treatment.

As such, the cleaning of the existing oil storage tank uses almost all of the oil in the oil storage tank, removes the remaining oil from the bottom of the tank, and lifts the sludge accumulated on the bottom to remove the oil. Since it requires a lot of work, it requires a lot of work costs, as well as a lot of labor costs, each step using a separate work tool had a disadvantage of slow work. In particular, since the sludge is piled up on the outside and dried, the leachate is generated in the sludge due to rainwater or other external inflows, which contaminates rivers and drinking water as well as soil contamination.

Therefore, an object of the present invention is to devise to solve the above-mentioned drawbacks, it is equipped with a cleaning equipment, and can move freely to the place that needs to be cleaned and can suck and clean the sludge or water accumulated in the oil storage tank with the oil. To provide oil storage tank cleaning vehicles.

Detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which numerals designate corresponding parts in the drawings.

1 is a schematic diagram of a cleaning system mounted on an oil storage tank cleaning vehicle according to the present invention;

2a to 2c is a side view, a plan view and a rear view of the oil storage tank cleaning vehicle according to the present invention,

3 is a view showing in detail the oil cleaning system of the cleaning vehicle of the present invention,

4A and 4B are views showing diaphragms installed inside the treatment tank of the cleaning vehicle.

5 is a use state diagram showing a state of cleaning the oil storage tank using the cleaning vehicle.

** Explanation of symbols for main parts of drawings **

100: treatment tank 102,104: diaphragm

110,120: first and second purification chamber 130: sludge treatment chamber

112,132: fluid plate 114,124,134: vacuum manhole

116,136: general manhole 118,128,138: air hole

200,200a: first and second intake pipe 210: hose

220,220a: first and second couplings 230,230a: first and second filters

240,240a: first and second check valve 300: vacuum means

310: vacuum piping 320: vacuum pump

330: vacuum selection valve 340: four-way valve

350: oil separator 352: oil container

360: Large pipe 400,400a, 400b: Exhaust pipe

410: discharge control valve 420: coupling

500: Hose 510: Filter

The oil storage tank cleaning vehicle according to the present invention for achieving the above object is a device for cleaning the oil storage tank, mounted on the vehicle target of the vehicle and sucks oil from the oil storage tank to remove impurities contained in the oil flow rate Treatment tank for separating and removing; A suction pipe for moving oil from the oil storage tank to the treatment tank; A discharge pipe for discharging the treated material to the outside to the outside; And vacuum means for generating a negative pressure in the processing tank to allow the oil in the oil storage tank to be sucked through the suction pipe. And a power providing means for providing power required for driving the vacuum means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a cleaning system mounted on an oil storage tank cleaning vehicle according to the present invention, while looking at this figure, the cleaning system of the cleaning vehicle will be described.

The apparatus is provided with a treatment tank 100 which sucks oil from the oil storage tank and separates water and sludge from it, as shown. The treatment tank 100 may be used as one space, but it is convenient to divide the interior into several spaces according to the use and use the same. In the present embodiment, the interior of the treatment tank 100 is divided into three compartments, each of which comprises a first purification chamber 110, a second purification chamber 120, and a sludge treatment chamber 130.

The treatment tank 100 is provided with suction pipes 200 and 200a to supply oil from the oil storage tank, and the suction pipes 200 and 200a are provided to the first purification chamber 110 and the second purification chamber 120. Each one is installed separately. In particular, couplings 220 and 220a for connecting the hoses 210 are mounted at the outer ends of the suction pipes 200 and 200a. Filters 230 and 230a are respectively connected to the rear ends of the couplings 220 and 220a. The first filter 230 is connected to the first coupling 220 and the second filter 230a is connected to the second coupling 220a. It is connected. The first and second filters 230 and 230a are preferably about 900 meshes. At the rear ends of the first and second filters 230 and 230a, first and second intermittent valves 240 and 240a for controlling the oil flowing into the first and second purification chambers 110 and 120, respectively, are mounted.

On the other hand, the rear end of the first filter 230 is also connected to the front end of the second filter 230a, the connection pipe 250 is interposed with a filter selection valve 252. Accordingly, when the first intake valve 240 is closed and the filter selection valve 252 is opened and the oil is sucked through the first suction pipe 200, the second filter 230a passes through the first filter 230. ) And the double filtration operation is carried out so that the cleaner oil can be sucked into the second purification chamber 120. This double filtration operation is performed when the pollution degree of oil is severe, and when the contamination is not severe, the filter selection valve 252 is closed and the first control valve 240 is opened to flow into the first suction pipe 200. The oil of the stored oil storage tank passes through only the first filter 230 and immediately flows into the first purification chamber 110. The two first and second purification chambers 110 and 120 are provided in the treatment tank 100 so that different types of oil, for example, gasoline and diesel, can be sucked into a separate purification chamber and treated. The inside of the tank 100 may be divided into three or more to make more purification chambers.

The first and second purifying chambers 110 and 120 and the sludge treatment chamber 130 are connected to a vacuum means 300 for sucking the oil and sludge by making a vacuum inside. That is, the vacuum pipe 310 is disposed in the first and second purification chambers 110 and 120 and the sludge treatment chamber 130, respectively, and is connected to the vacuum pump 320, and the vacuum pipe 310 and the vacuum pump 320 are respectively disposed. Between the first and second purification chambers 110 and 120 and the sludge treatment chamber 130 is disposed a vacuum selection valve 330 for selectively activating the vacuum pipe 310. Detailed description thereof will be described later with reference to FIG. 3. The discharge pipe 400 is also installed in the first and second purification chambers 110 and 120 and the sludge treatment chamber 130, and the discharge control valve 410 and the coupling 420 are installed in the discharge pipe 400. have. At least one discharge pipe 400 is provided in each compartment, preferably, two different heights are installed in each compartment as shown in the drawing. Water and sludge are discharged to the outside from the first and second purification chambers 110 and 120 through the discharge pipe 400, and the purified oil is resupplied to the oil storage tank through the discharge pipe 400. In particular, when supplying the refined oil into the oil storage tank, the hose 500 is connected to the coupling 520 of the discharge pipe 400 and the impurities are filtered once again from the purified oil through the filter 510 to filter the oil storage tank. Will be sent to. At this time, the filter 510 to be used is preferably about 40,000 mesh.

Figure 2a to 2c is a side view, plan view and rear view of the oil storage tank cleaning vehicle according to the present invention, Figure 3 is a view showing an oil cleaning system of the cleaning vehicle of the present invention in detail. 4A and 4B are diagrams showing diaphragms installed inside the treatment tank of the cleaning vehicle. Now, the configuration of the present invention outlined above with reference to these drawings will be described in more detail.

As shown in Figs. 2A to 2C, the cleaning vehicle 10 according to the present invention includes a treatment tank 100 mounted on the rear chassis 20. As shown in Figs. The treatment tank 100 sucks oil from an oil storage tank such as a gas station, separates water and sludge contained in the oil therein, and then purifies and discards the water and sludge, and the refined oil is returned to the oil storage tank. This is where processing to supply and use is performed.

The processing tank 100 is divided into three spaces, and the divided spaces include the first and second purification chambers 110 and 120 and the sludge treatment chamber 130 as described above. The first and second purification chambers 110 and 120 are spaces where suction and storage of oil are carried out to separate and purify impurities contained in the oil, that is, water or sludge, and the sludge treatment chamber 130 sucks sludge into the sludge waste place. It is a space to store so far.

In this embodiment, as shown in the drawing, the first purification chamber 110, the sludge treatment chamber 130, and the second purification chamber 120 are arranged in order from the left side, and in particular, the first purification chamber 110 and the sludge treatment chamber ( 130, the inner space is divided into two again. In more detail, the inside of the processing tank 100 is provided with two first and second diaphragms 102 and 104 having no holes or grooves to communicate with both sides as shown in FIG. 4A. Is completely divided into three spaces, the first purification chamber 110, the sludge treatment chamber 130, and the second purification chamber 120, and the first purification chamber 110 and the sludge treatment chamber 130 are shown in FIG. 4B. As shown in the first and second flow plates 112 and 132 in which the flow holes 112a and 132a are perforated are installed. Therefore, the contents stored in the suction in the first purification chamber 110 and the sludge treatment chamber 130 may be flowed to some extent, but since the space is divided, the storage pressure is not concentrated in one place. Dispersion improves safety.

The first and second suction pipes 200 and 200a are disposed in the first and second purification chambers 110 and 120, respectively, and the oil to be treated from the oil storage tank through the first and second suction pipes 200 and 200a. Will be inhaled. The first and second suction pipes 200 and 200a have inner ends in the first and second purification chambers 110 and 120, respectively, and the outer ends thereof are located outside the processing tank 100. In particular, the outer ends of the first and second suction pipes 200 and 200a protrude from the rear of the tank, and they are connected to the first and second filters 230 and 230a mounted to the rear of the tank 100, respectively, Since the first and second couplings 220 and 220a are coupled to each other, a hose 210 may be connected to the couplings 220 and 220a to suck the oil from the oil storage tank. In addition, the first and second filters 230 and 230a are connected to each other through a connection pipe 250, and a filter selector valve 252 is installed in the middle thereof. That is, the connecting pipe 250 is connected to the front of the second filter 230a from the rear of the first filter 230, so that the oil filtered through the first filter 230 is supplied to the second filter 230a. To be filtered again. Such secondary filtration is performed when the degree of contamination of the oil being sucked is severe, and in this case, the filter selection valve 252 is opened to allow the connection pipe 250 to communicate with each other. Therefore, the contaminated oil is sucked toward the first suction pipe 200 and passes through the first and second filters 230 and 230a and then supplied to the second purification chamber 120 through the second suction pipe 200a. On the other hand, when the degree of contamination of the oil is not severe, the filter selection valve 252 is closed to operate the first filter 230 and the second filter 230a separately. That is, the oil sucked through the first suction pipe 200 flows into the first purification chamber 110 immediately after being filtered through the first filter 230 and the oil sucked through the second suction pipe 200a. Is filtered through the second filter 230a and then flows into the second purification chamber 120.

Meanwhile, discharge pipes 400, 400a and 400b connected to the first and second purification chambers 110 and 120 and the sludge treatment chamber 130 are provided below one side of the treatment tank 100. Of course, the discharge pipe (400, 400a, 400b) has a coupling 420 is connected to the end via the discharge control valve 410 to form a structure that can be connected to the hose. The discharge pipes 400, 400a and 400b are provided in pairs of the first and second purification chambers 110 and 120 and the sludge treatment chamber 130, respectively, one of which is installed at a high place and the other at a lower place. In particular, the discharge pipe 400b connected to the sludge treatment chamber 130 is also used as a suction pipe for sucking in addition to the discharge of sludge.

Vacuum manholes 114, 124, and 134 are provided on the first and second purification chambers 110 and 120 and the sludge treatment chamber 130, and the first and second sludge treatment chambers 130 and two sludge treatment chambers 130 have two interiors. The above-mentioned vacuum manholes 114 and 134 are provided above one side (left) space, and common manholes 116 and 136 are provided above the other (right) space. In addition, air holes 118, 128, and 138 are formed in upper portions of the first and second purification chambers 110 and 120 and the sludge treatment chamber 130 to release an internal vacuum and to return to an atmospheric pressure state. Of course, the air openings 118, 128 and 138 are provided with opening and closing means.

As described above, in the present invention, vacuum pressure is used to treat oil and sludge in the first and second purification chambers 110 and 120 and the sludge treatment chamber 130. To this end, the cleaning vehicle includes a treatment tank 100 and Connected vacuum means 300 is provided.

The vacuum means 300 includes a vacuum pipe 310 and a vacuum selection valve 330 connected to the first and second purification chambers 110 and 120 and the sludge treatment chamber 130, and located at a rear end of the vacuum selection valve 330. A vacuum pump 320 is provided. The vacuum means will be described in detail as follows.

Vacuum manholes 114, 124, and 134 are respectively provided on the upper portions of the treatment tanks 100 corresponding to the first and second purifying chambers 110, 120 and the sludge treatment chamber 130, respectively. Fields 312, 314, and 316 are connected. On / off valves 332, 334, and 336 are respectively installed on the vacuum tubules 312, 314, and 316, and then integrated into one integrated pipe 318 and connected to the four-way valve 340. The integrated pipe 318 is provided with a pressure gauge 317 and an integrated check valve 319. Two vacuum pumps 320 and 320a are connected in parallel to the four-way valve 340 via an air separator 342 which separates and discharges air from the fluid, and prevents backflow at the front end of the vacuum pumps 320 and 320a. Check valves 322 and 322a are provided. At the rear end of the vacuum pumps 320 and 320a, the vacuum pipes are integrated into one and are connected to the four-way valve 340 via the oil separator 350 and the oil container 352 in turn. The other one port of the four-way valve 340 is connected to the large pipe (360) to be able to suck air from the atmosphere to form the pressure required for pressurization. The vacuum means 300 having such a configuration is provided at the lower side of the chassis 20.

The present invention is also provided with power supply means (not shown) for providing the power required for driving with vacuum pumps 320, 320a and the like. As the power supply means, a separate generator may be mounted in the vehicle or the power take-off (PTO) of the vehicle may be used. Of course, the valves installed in the cleaning vehicle 10 to open and close the flow path may be configured to be automatically driven by a solenoid or the like, wherein the solenoid is driven by power (power) supplied by the power providing means.

5 is a use state showing the state of cleaning the oil storage tank using the cleaning vehicle, as shown in the drawing hose 220 to the coupling 220 provided on one side of the suction pipe 200 of the processing tank 100 Connect the 210 and put one end of the hose 210 into the oil storage tank 30 to suck up the oil into the treatment tank (100). Now, the operation of cleaning the oil storage tank using the cleaning vehicle of the present invention will be described in detail with reference to FIG. 5 and the aforementioned conductive surfaces.

When a cleaning request is received at a gas station or a factory having an oil storage tank, the person in charge operates the oil storage tank cleaning vehicle 10 of the present invention and moves to the corresponding oil storage tank 30. Then, the lid of the oil storage tank 30 is opened and the state in the oil storage tank 30 is checked. Then, which one of the first and second purification chambers 110 and 120 of the treatment tank 100 is to be used and the contamination of the oil. Depending on the degree, it is decided whether to use only one filter or double filter, to open the control valve connected to the relevant purification chamber and to control the opening and closing of the filter selection valve. For example, if it is determined that the first purifying chamber 110 is used and only one filter is used, the first regulating valve 240 connected to the first purifying chamber 100 among the regulating valves is opened and the filter selecting valve 252 is closed. Next, the hose 210 is connected to the coupling 220 of the first suction pipe 200 to insert the hose 210 into the oil storage tank 30. Then, when the vacuum pumps 320 and 320a are operated, a negative pressure is formed in the first purification chamber 110 to move the oil through the hose 210 immersed in the oil storage tank 30 so as to move the first suction pipe 200. A) is sucked into the first purification chamber 110. At this time, the sludge passing through the first filter 230 provided in the first suction pipe 200 and having visible particles is filtered and then oil is supplied. Therefore, the oil sucked in the oil storage tank 30 is stored in the first purification chamber 110 as above, and after a certain time, the sludge and water are lower due to the specific gravity difference of water or sludge contained in the oil. Precipitated and pure oil is present in the upper layer. When separated in this way, the sludge and water are discharged to the outside through the discharge pipe 400 provided on the lower side of the first purification chamber 110. The sludge and water discharged in this way are provided with a separate storage container (not shown) outside, and the sludge and water are connected to the discharge pipe 400b of the sludge treatment chamber 130 by the sludge treatment chamber 130. Suction to store.

As described above, when the sludge and water are discharged and separated in the first purification chamber 110, only pure oil exists in the first purification chamber 110, and the purified oil is returned to the first purification chamber 100 again. The hose 500 is connected to the discharge pipe 400 provided to be moved and stored in the oil storage tank 30. At this time, since the fine oil may be contained in the oil purified in the first purification chamber 110, the filter 510 is installed on the hose 500 connected to the discharge pipe 400 again and then filtered more precisely. After the transfer to the oil storage tank (30).

The embodiments disclosed herein are only presented by selecting the most preferred examples to assist those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, the present invention Various changes and modifications are possible within the scope without departing from the spirit of the invention, as well as other equivalent embodiments.

As described above, the oil storage tank cleaning vehicle according to the present invention has an advantage that can easily move anywhere that needs to be cleaned and has excellent accessibility and activity. In addition, by using a vacuum pump, the contaminated oil in the oil storage tank is sucked and lifted into the treatment tank, and the impurities in the oil are purified and separated therein, so that pure oil can be returned to the oil storage tank for use. Since the process is implemented in one cleaning vehicle, convenient and quick cleaning is possible. Further, the sludge generated during the tank cleaning is advantageous because it can suck and load the sludge treatment chamber and transport it to a waste place, so that the oil storage tank can be completely cleaned through one main vehicle. In particular, it is possible to mechanize, automate, and reduce the cleaning and manpower costs by allowing all operations to proceed sequentially through this vehicle without the operator directly entering the tank to clean the odorous and dirty work. There is.

Claims (7)

In the device for cleaning the oil storage tank, A processing tank mounted on a vehicle object of the vehicle and sucking oil from the oil storage tank to separate and remove impurities contained in the oil; A suction pipe for moving oil from the oil storage tank to the treatment tank; A discharge pipe for discharging the treated material to the outside to the outside; And Vacuum means for generating negative pressure in the processing tank to allow the oil in the oil storage tank to be sucked through the suction pipe; And Oil storage tank cleaning vehicle comprising a power supply means for providing power required for driving the vacuum means. The oil storage tank cleaning vehicle according to claim 1, wherein the treatment tank is divided into at least one purification chamber and a sludge treatment chamber by spaces separated from each other by partitions. 3. The oil storage tank cleaning vehicle according to claim 2, wherein suction pipes are separately disposed in the purification chambers, and couplings for connecting with a filter and a hose are provided in the suction pipes, respectively. 4. The oil storage tank cleaning vehicle according to claim 3, wherein the neighboring filters are connected from an output side to an input side by a connecting pipe, and the connecting pipe is provided with a filter selection valve for opening and closing the inner passage. According to claim 1 or 2, wherein the vacuum means is connected to the vacuum selection valves and the vacuum selection valves disposed on the pipe connected to the purification chamber and the sludge treatment chamber respectively, the vacuum chamber and the sludge treatment chamber At least one vacuum pump for causing oil and / or sludge to be sucked into the interior through the suction pipe by discharging the air, characterized in that the oil storage tank cleaning vehicle. 3. The oil storage tank cleaning vehicle according to claim 2, wherein the purification chamber and / or the sludge treatment chamber are divided into two spaces again by the flow plate having the perforated flow holes. The oil storage of claim 1, further comprising a filter for precisely refining the refined oil once again when the pure oil purified in the purification chamber is returned to the oil storage tank through the discharge pipe again. Tank cleaning vehicle.