Deodorizing device for vacuum trucks

Abstract

Conventional vacuum trucks collect household waste using a vacuum pump (3a), but at the same time release bad odors (3f) into the outside air through the exhaust port of the exhaust pipe (3b).The deodorizing device for vacuum trucks of the present invention eliminates the bad odors emitted from the exhaust pipe (3a) by burning them with the engine. SOLUTION: The deodorizing device for a vacuum truck of the present invention uses a T-pipe (1) and a hose (2) to incinerate the bad odor (3f) coming out of the exhaust pipe (3a) of a vacuum pump (3a) in the intake pipe (3d) of an engine (3c), making it odorless.

Description

[Technical Field]

[0001] The present invention relates to a deodorizing device for a vacuum truck that burns the bad odors coming out of the exhaust pipe with the engine of the vacuum truck, just as burning a fart eliminates the odor. [Background technology]

[0002] Conventionally, as shown in Figure 5, a vacuum truck (3) has been used to collect waste from the toilets of ordinary households using a vacuum pump (3a), but at the same time, a foul odor (3f) is released into the outside air from the exhaust port of the exhaust pipe (3b). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2014-91952 [Patent Document 2] Patent Publication No. 2013-72259 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] Conventionally, as shown in Figure 5, a vacuum truck (3) was used to collect waste from ordinary household toilets using a vacuum pump (3a), but at the same time, a foul odor (3f) was released into the outside air from the exhaust port of the exhaust pipe (3b). To eliminate this foul odor (3f), a deodorizing device was installed at the end of the exhaust port, but this required replacing the solution and filters in the deodorizing device, which was time-consuming, and some toilets did not even have a deodorizing device.

[0005] Therefore, the deodorizing device for a vacuum truck of the present invention provides a deodorizing device for a vacuum truck that eliminates odors (3f) by burning them in the engine (3c) from the exhaust pipe (3a). [Means for solving the problem]

[0006] In order to achieve the above object, the deodorizing device for a vacuum truck of the present invention is composed of a T-pipe (1) and a hose (2), and the T-pipe (1) is equipped with a branch (1a) and is inserted into the exhaust pipe (3b) of the vacuum pump (3a) of an existing vacuum truck (3).

[0007] The hose 2 is then attached from the branch 1a of the T-pipe 1 to the intake pipe 3d of the cleaner 3e of the engine 3c of the existing vacuum truck 3. The purpose is achieved by having the branch 1a located higher than the tip of the exhaust pipe 3b of the vacuum pump 3a.

[0008] The deodorizing device for a vacuum truck according to claim 2 comprises a vacuum pump (3a), an engine (3c), and a T-pipe (1), and the vacuum pump (3a) is provided with an exhaust pipe (3b). The engine (3c) is provided with an intake pipe (3d) of a cleaner (3e).

[0009] The T-pipe (1) has a branch pipe (1a), and the T-pipe (1) is interposed between the exhaust pipe (3b) of the vacuum pump (3a) and the intake pipe (3d) of the cleaner (3e), thereby achieving the purpose. [Effects of the Invention]

[0010] The deodorizing device for a vacuum truck of the present invention has the following effects. (a) Installation is easy because it only requires a T-pipe and a hose. (See Figure 1 for details.) (b) Because it is a retrofit, it does not waste existing products. (See paragraph 0024 for details.) (c) The structure is simple because the idea is to burn off the odor. (See paragraph 0015 for details.) (ii) Claim 2 can be made even easier if the vacuum pump is modified. (See paragraph 0034 for details) (e) It can also be used in garbage collection vehicles. (See paragraph 0045 for details.) [Brief explanation of the drawings]

[0011] [Figure 1] The figure is a schematic diagram illustrating the present invention. [Figure 2] The figure shows a side view of the present invention. [Figure 3] The figure shows a side view of a stopper that attaches a T-tube at an appropriate height. [Figure 4] The figure is a schematic diagram showing claim 2. [Figure 5] The figure is a side view of an existing vacuum truck. BEST MODE FOR CARRYING OUT THE INVENTION

[0012] The deodorizing device for the vacuum truck of the present invention utilizes the fact that the bad smell (3f) is burned and becomes odorless. The installation method is to suck the entire waste tank of the vacuum truck (3) with a vacuum pump (3a), and then use the power of the decompressed tank to suck up and collect the toilet waste with a hose.

[0013] The air that created a vacuum in the tank was released into the atmosphere through an exhaust pipe (3b) via a vacuum pump (3a), but the exhaust pipe (3b) was then covered with a T-pipe (1) from a vacuum truck's deodorizing device. The T-pipe (1) that was covered had a larger diameter than the exhaust pipe (3b). Therefore, the conditions were the same as if the air was being released into the atmosphere.

[0014] The foul odor (3f) floating in the T-pipe (1) is sucked in by the suction power of the engine (3c) through the branch (1a) of the T-pipe (1). Since the engine (3c) draws in more air than the vacuum pump (3a) discards, there is no risk of the foul odor (3f) leaking. The T-pipe (1) has its branch (1a) higher than the tip of the exhaust pipe (3b). A hose (2) is connected to the intake pipe (3d) coming out of the cleaner (3e) of the engine (3c) of the vacuum truck (3), and the other end of the hose (2) is connected to the branch (1a) of the T-pipe (1). The foul odor (3f) emitted from the vacuum pump (3a) is sucked in by the cleaner (3e) through the branch (1a) and hose (2), and is released into the atmosphere as exhaust gas from the vacuum truck (3).

[0015] The exhaust gas of the vacuum truck (3) released into the atmosphere is completely odorous (3f) and burns at a high temperature of about 6000 degrees in the cylinder of the engine (3c), so the exhaust gas of the vacuum truck (3) burns the components of the sewage in the odorous (3f) and becomes ordinary waste gas, which is odorless.

[0016] The deodorizing device for a vacuum truck in claim 2 is different from the device in claim 1 that can be simply installed without any modifications, but can be made more easily by modifying the exhaust pipe (3b) and intake pipe (3d).The installation method is to suck up the entire filth layer tank of the vacuum truck (3) with a vacuum pump (3a), and then use the power of the decompressed tank to suck up and collect the filth from each household with a hose.

[0017] The tank is evacuated, and the air containing the sewage odor is sent from the exhaust pipe (3b) to the T-pipe (1) via the vacuum pump (3a), and the air in the T-pipe (1) is sucked into the intake pipe (3d), making it a simple system. It also makes the exhaust pipe (3b) appear shorter. Therefore, since the T-pipe (1) is interposed between the exhaust pipe (3b) and the intake pipe (3d), if the exhaust pipe (3b) and the intake pipe (3d) can be modified, the structure can be simpler than that of claim 1.

[0018] Since it is expected that the vacuum pump (3a) will not produce much odor at this time, the T-pipe (1) is equipped with a branch (1a) pipe, and the missing air is replenished through the branch (1a). Therefore, the branch (1a) pipe is an intake pipe. Example 1

[0019] The deodorizing device for a vacuum truck of the present invention will be described with reference to the drawings. The schematic diagram in Figure 1 shows the side of the vacuum truck (3) in thin lines, and the deodorizing device for the vacuum truck of the present invention in thick solid lines. The diagram shows that the exhaust pipe (3b) of the vacuum pump (3a) is discharged into the T-pipe (1), and the intake pipe (3d) of the cleaner (3e) of the engine (3c) is sucked into the branch (1a) via the hose (2).

[0020] The vacuum truck (3) was a 4-ton vehicle that used a vacuum pump (3a) to suck out the air from the sewage layer, and the evacuated tank sucked in the sewage from each household through a hose. The gas coming out of the vacuum pump (3a) was released through an exhaust pipe (3b).

[0021] The diagram shows that the exhaust pipe (3b) had a bend and was discharged into the atmosphere about two meters above ground level. The gas was filthy air and gave off a foul odor (3f).

[0022] On the other hand, the cleaner (3e) of the engine (3c) sucks in the air to rotate the engine (3c), so the bad smell (3f) of the air coming out of the exhaust pipe (3b) is made odorless by burning it in the engine (3c).

[0023] The method is to cover the exhaust pipe (3b) with a diameter of Φ50 with a T-pipe (1) of Φ60 or more, and a branch (1a) of the T-pipe (1) is connected to the intake pipe (3d) of the cleaner (3e) via a hose (2), and the bad smell (3f) is sucked in by the rotation of the engine (3c).

[0024] That is, the waste gas from the vacuum pump (3a) is released from the exhaust pipe (3b) as in the conventional system, but the air in the T-pipe (1) is collected by the branch pipe (1a) and burned in the engine (3c) through the hose (2). Therefore, since the existing vacuum truck (3) has not been modified in any way, the vacuum truck (3) itself can be used without this invention, but the bad smell (3f) will remain, so this device is necessary.

[0025] At this time, the vacuum truck (3) is a diesel engine (3c) and does not use a carburetor, so even if the engine (3c) slows down, the air consumption does not change significantly. Therefore, the bad smell (3f) coming out of the exhaust pipe (3b) is not released into the atmosphere. However, if the bad smell (3f) leaks from the top of the T-pipe (1), the engine (3c) speed is increased to adjust it so that it does not come out from the end of the T-pipe (1).

[0026] However, the amount of stale air (3f) coming out of the vacuum pump (3a) is about 20 liters per minute, and the amount of air taken into the engine (3c) is about 600 liters. The T-pipe (1) has a branch (1a) and the missing air is replenished through the branch (1a). Therefore, the branch (1a) is an intake pipe, and the tip of the T-pipe (1) also takes in air.

[0027] Figure 2 is a side view of the vacuum truck deodorizing device of the present invention. The T-pipe (1) is about 2 meters long and has a branch (1a) at the top, to which a rubber hose (2) is attached.

[0028] Now, let me explain how to make it. Prepare 1.5 meters, 50 cm, and 20 cm of Φ60 PVC pipe and insert them into a T-shaped socket to make a T-pipe (1). PVC pipes are the same pipes used for water supply, but PVC pipes for drainage are cheaper. This T-pipe (1) and hose (2) can be made of any material as no pressure or heat is applied to them.

[0029] A 20cm pipe is attached to the branch (1a) of the T-pipe (1), and a hose (2) is inserted on the outside of the branch (1a), and the other end of the hose (2) is connected to the intake pipe (3d) of the cleaner (3e) of the engine (3c).

[0030] The shape of the hose (2) is good because it will not crush the rubber hose (2) used to drain the washing machine, but since there is only a Φ30 one available, I need to find one that is Φ60.

[0031] Figure 3 is a side view of the stopper (1b) that fixes the aftermarket T-pipe (1) at an appropriate height. The stopper (1b) is a rod or screw nail, and there is a Φ6 rod or screw nail inserted 20 mm or more into the center of the T-pipe (1), which acts as an obstacle. Because of the rod or screw nail, when the exhaust pipe (3b) is inserted, the rod stopper (1b) comes into contact with the tip of the exhaust pipe (3b) and stops, setting the height of the T-pipe (1).

[0032] The stopper (1b) is located under the branch (1a) of the T-pipe (1), so that the bad smell (3f) coming out of the exhaust pipe (3b) is sucked from the branch (1a) pipe through the hose (2) into the intake pipe (3d), where it is burned at a temperature of about 6000 degrees in the engine (3c), becoming odorless. Example 2

[0033] Figure 4 is a schematic diagram of the deodorizing device for a vacuum truck according to claim 2. The side of the vacuum truck (3) is drawn with thin lines, and only the deodorizing device for the vacuum truck is drawn with thick solid lines. This is a side view of the vacuum truck (3) itself facing right. The structure utilizes the fact that the smelly stench (3f) becomes odorless by burning it. The diagram shows the exhaust pipe (3b) of the vacuum pump (3a) being discharged inside the T-pipe (1), and the intake pipe (3d) of the cleaner (3e) of the engine (3c) being sucked.

[0034] The installation method can be made simpler than claim 1 if the exhaust pipe (3b) of the vacuum pump (3a) and the intake pipe (3d) of the cleaner (3e) are modified. The entire waste tank of the vacuum truck (3) is sucked up by the vacuum pump (3a), and the pressure in the decompressed tank is used to suck up the waste from each household with a hose. The air that created a vacuum in the tank is sucked from the exhaust pipe (3b) of the vacuum pump (3a) through the T-pipe (1) into the intake pipe (3d).

[0035] At this time, the amount of stench discharged from the vacuum pump (3a) is expected to be small, about 20 liters per minute, so the engine (3c) is running at 500 RPM and the intake air is about 600 liters, which is insufficient. Therefore, the T-pipe (1) is equipped with a branch (1a), and the missing air is replenished through the branch (1a). Therefore, the branch (1a) is the intake pipe. Example 3

[0036] An example of use is as follows. Suppose the malodorous gas (3e) coming out of the vacuum pump (3a) comes out of the exhaust pipe (3b) at a rate of 20 liters per minute, but the intake pipe (3d) of the diesel engine (3c) is even larger than that, so all of the malodorous gas (3f) that comes out is treated. Also, when the amount of malodorous gas (3f) coming out of the exhaust pipe (3b) is greater than the amount of malodorous gas, the malodorous gas (3f) comes out from the top of the T-pipe (1). At that time, the engine (3c) speed is increased to increase the amount of intake air and prevent the malodorous gas (3f) from coming out.

[0037] On rainy days, rain blows in from the top of the T-pipe (1), but the water sticks to the edge of the T-pipe (1) and is discharged directly from the bottom of the T-pipe (1).

[0038] In addition, in the case of claim 2, the branch (1a) of the T-pipe (1) is facing upward in the drawing, but if it is attached downward, rainwater will not get in. Example 4

[0039] A detailed explanation of symbols and terms is provided. The deodorizing device for vacuum trucks is a retrofit device that is not subject to pressure or temperature, so it can be made from PVC pipes, such as water pipes and drainage pipes. Furthermore, the deodorizing device for vacuum trucks of claim 2 simplifies the shape of the T-pipe (1) from the vacuum pump (3a) to the intake pipe (3d) by modifying the intake pipe (3d) of the vacuum pump (3a). The T-pipe (1) is made by gluing three water pipes to a T-shaped socket ("cheese"). A stopper rod is inserted into the long downward-facing pipe of the T-shaped socket to prevent the exhaust pipe (3b) from entering further into the T-pipe (1). A 20-centimeter pipe is attached to the branch (1a) of the T-pipe (1), and a hose (2) is attached to the end of the pipe. In the case of the deodorizing device for a vacuum truck described in claim 2, it is interposed between the exhaust pipe (3b) and the intake pipe (3d), and in this case, it must be installed precisely. Therefore, it requires insertion, screws, or flanges for installation. Furthermore, since the engine (3c) is designed to move to a certain extent, a flexible pipe (swivel pipe) is required between the intake pipe (3d) and the engine (3c).

[0040] The branch (1a) is the socket of the T-pipe (1), and the part that is pointing straight to the side is called the branch (1a). The bad odor (3f) accumulated in the T-pipe (1) is released into the branch (1a) pipe and burned in the engine (3c), making the bad odor (3f) odorless. In the case of the deodorizing device for a vacuum truck of claim 2, the branch (1a) pipe serves as an intake pipe for drawing in air. The stopper (1b) is provided below the branch (1a) of the T-pipe (1) and holds the tip of the exhaust pipe (3b) to prevent it from going in any further. The hose (2) is a decompressed one, and ideally it should not collapse, and a rubber hose with resin rings at 5cm intervals, like the drain hose for a washing machine, is ideal. In the case of the vacuum truck deodorizing device of claim 2, the hose (2) is not necessary.

[0041] Vacuum trucks (3) are used in various places, such as collecting human waste from ordinary households, cleaning septic tanks, and switching oil pipes in refineries. Vacuum trucks (3) are also useful in the event of an accident, but the vacuum trucks (3) mentioned here are those used for collecting human waste from toilets in each household or cleaning septic tanks. The vacuum pump (3a) reduces the pressure of the air and is an important part of the vacuum truck (3). The vacuum pump (3a) sucks air at about 0.5 atmospheres. The exhaust pipe (3b) is a part of the vacuum pump (3a) that sucks out the air from the tank of the vacuum truck (3) and uses the vacuum to suck up the human waste from each household. The air is then released from the exhaust pipe (3b) at an upper location that will not interfere with the work. This air is a foul odor (3f), and the released foul odor (3f) is sucked in by the intake pipe (3d) and burned in the engine (3c).

[0042] The engine (3c) is the engine (3c) of the vacuum truck (3), and is usually a diesel engine (3c). If the engine (3c) is a gasoline engine, the air sucked in by the carburetor is also throttled, but the speed of a diesel engine (3c) is constant, and the rotation speed is determined by the amount of diesel fuel, so the amount of air sucked in by a diesel engine (3c) does not change even at low rotation speeds.

[0043] The intake pipe (3d) is a part of the cleaner (3e) and has a narrowed outlet to allow air to enter. This makes it easy to attach the rubber hose (2). In addition, in the case of the deodorizing device for a vacuum truck of claim 2, it can be easily modified, so it is easy to connect it to the exhaust pipe (3b). The cleaner (3e) is a part of the engine (3c) that removes dust and other particles from the air. It contains an element, which can be a dry type made of nonwoven fabric or a fine wire mesh. The bad smell (3f) is the smell of gas coming out of the vacuum pump (3a), and since the bad smell (3f) is sucked out of the tank of the vacuum truck (3) by the vacuum pump (3a), it is only natural that it smells bad. [Industrial Applicability]

[0044] There are vacuum trucks (3) that suck up sludge and recover oil from accidents, but the gas coming out of the exhaust pipe (3b) of the vacuum pump (3a) of the oil recovery truck in particular is flammable, and if the gas is left unattended, there is a risk of fire or explosion.

[0045] When the deodorizing device for a vacuum truck of the present invention is installed, the combustible gas is released from the exhaust pipe (3b) of the vacuum pump (3a). The released combustible gas is sucked from the intake pipe (3d) of the vacuum truck (3) via the hose (2) and accumulated in the T-pipe (1), where it is burned in the cylinder of the engine (3c) and released as waste gas.

[0046] At that time, wire mesh was placed over the muffler of the vacuum truck (3) to prevent sparks from escaping. However, there are other types of devices, such as the Spannon, which use airflow to prevent sparks from escaping, and these are used by vehicles entering the refinery.

[0047] In addition to vacuum trucks (3), it can also be used in garbage trucks. Although not as strong as vacuum trucks (3), garbage trucks also produce a foul odor from food waste during summer collection. Therefore, by attaching an intake pipe to the garbage tank that produces the foul odor and burning it in the engine (3c), the odor becomes odorless. [Explanation of symbols]

[0048] 1 T-tube 1a Branch 1b Stopper 2 hoses 3 Vacuum truck 3a Vacuum pump 3b Exhaust pipe 3c Engine 3d Intake pipe 3e Cleaner 3f Bad smell

Claims

[Claim 1] A conventional vacuum car (3) that emits a foul odor (3f) from the exhaust port of the exhaust pipe (3b) of the vacuum pump (3a), The deodorizing device of the vacuum truck (3) is a retrofit and is composed of a T-pipe (1) and a hose (2). The T-tube (1) is provided with a branch (1a), The T-tube (1) is covered with the exhaust pipe (3b) of the vacuum pump (3a) of the existing vacuum car (3), The hose (2) is attached from the branch (1a) to the intake pipe (3d) of the cleaner (3e) of the engine (3c) of the existing vacuum truck (3), The deodorizing device for a vacuum truck is characterized in that it becomes odorless by burning in the cylinder of the engine (3c).

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