Vacuum pump web type system and cleaning and sewage suction truck

Abstract

The utility model relates to a vacuum pump web type system and a cleaning suction-type sewer scavenger, the vacuum pump web type system comprises a clear water tank, a sewage tank, a vacuum pump unit, a cooling unit and a cooling unit, the vacuum pump unit comprises a vacuum pump communicated with the sewage tank; the cooling unit communicates with the vacuum pump and has a coolant for cooling the vacuum pump; the cooling unit comprises a cooling pipeline and a driving pump, the two ends of the cooling pipeline communicate with the cooling unit, part of the cooling pipeline is located in the clear water tank and has heat conductivity, and the driving pump is arranged on the cooling pipeline and used for driving coolants to flow through the cooling pipeline. Compared with the prior art, the ventral system of the vacuum pump provided by the utility model has the advantages that the cooling unit is used for cooling the coolant, so that the coolant recovers the capability of cooling the vacuum pump, the cooling pipeline of the cooling unit penetrates through the clear water tank, and the clear water tank is used for absorbing heat of the coolant; and a cooling device for the coolant does not need to be additionally arranged, so that the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of special-purpose vehicles, in particular to a vacuum pump belly system and a cleaning and sewage suction vehicle. Background Art

[0002] At present, the vacuum system of the cleaning and suction trucks on the market is generally equipped with a water ring vacuum pump. The configuration feature of this type of vehicle is to match the cooling water tank of corresponding capacity. If the water tank is too small, the vacuum pump is prone to high temperature, resulting in a decrease in the suction efficiency. If the water tank is large, it will occupy a large space in the vehicle, and the quality utilization rate of the vehicle will decrease.

[0003] In order to solve this problem, some vehicles have installed a cooling system on the vacuum cooling water tank. The cooling system requires the addition of a water pump, radiator and pipelines. The heating of the radiator has high requirements on the cooling water quality. Ordinary water quality can easily cause rust, blockage and other disadvantages to the radiator. Blockage will cause the heat dissipation efficiency to decrease, and the front-end water pump will overheat and burn, resulting in increased operating and maintenance costs. Utility Model Content

[0004] In view of this, it is necessary to provide a vacuum pump belly system and a cleaning and suction truck to solve the technical problem of large heat dissipation requirements of the vacuum pump in the prior art.

[0005] The utility model provides a vacuum pump belly system, which comprises: a clean water tank, a sewage tank, a vacuum pump unit, a cooling unit and a temperature reduction unit, wherein the vacuum pump unit comprises a vacuum pump connected with the sewage tank; the cooling unit is connected with the vacuum pump, and the cooling unit has a coolant for cooling the vacuum pump; the temperature reduction unit comprises a temperature reduction pipeline and a driving pump, both ends of the temperature reduction pipeline are connected with the cooling unit, a part of the temperature reduction pipeline is located in the clean water tank and has thermal conductivity, and the driving pump is arranged on the temperature reduction pipeline to drive the coolant to flow through the temperature reduction pipeline.

[0006] Furthermore, the cooling pipe is a metal pipe, and the portion of the cooling pipe located in the clean water tank is bent to increase the contact area.

[0007] Furthermore, the cooling unit includes a coolant storage tank, the coolant storage tank is connected to the vacuum pump, and both ends of the cooling pipeline are connected to the coolant storage tank.

[0008] Furthermore, the air inlet of the vacuum pump is connected to the sewage tank, and the exhaust port of the vacuum pump is connected to the coolant storage tank.

[0009] Furthermore, the cooling unit also includes a condenser arranged at the air outlet of the coolant storage tank.

[0010] Furthermore, the vacuum pump unit also includes a four-way reversing valve, and four interfaces of the four-way reversing valve are respectively connected to the sewage tank, the air inlet of the vacuum pump, the air outlet of the coolant storage tank and the external atmosphere.

[0011] Furthermore, the sewage tank is also connected with a sewage suction pipe.

[0012] Furthermore, a temperature detector is provided in the coolant storage tank.

[0013] Furthermore, a valve is provided on the cooling pipeline, and the temperature detector is connected to the valve and the driving pump signal control.

[0014] The utility model provides a cleaning sewage suction vehicle, which comprises a vacuum pump belly system.

[0015] Compared with the prior art, the vacuum pump belly system provided by the utility model uses a cooling unit to cool the coolant, so that the coolant can restore the ability to cool the vacuum pump. The cooling pipe of the cooling unit passes through the clean water tank, and the clean water tank is used to absorb the heat of the coolant. Since the clean water tank is the original structure of the sewage cleaning truck, there is no need to additionally set up a heat dissipation device for the coolant, thereby reducing the occupied space.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] FIG1 is a schematic structural diagram of a preferred embodiment of a vacuum pump belly system provided by the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] See also Figure 1The utility model provides a vacuum pump belly system, which can be used in a cleaning and suction sewage truck. The vacuum pump belly system includes a clean water tank 1, a sewage tank 2, a vacuum pump unit 3, a cooling unit 4 and a cooling unit 5. The vacuum pump unit 3 includes a vacuum pump 31, which is connected to the sewage tank 2 and is used to generate negative pressure in the sewage tank 2 to suck sewage. The cooling unit 4 is connected to the vacuum pump 31, and the cooling unit 4 has a coolant for cooling the vacuum pump 31. The cooling unit 5 includes a cooling pipe 51 and a driving pump 52. Both ends of the cooling pipe 51 are connected to the cooling unit 4. Part of the cooling pipe 51 is located in the clean water tank 1 and has thermal conductivity. The driving pump 52 is arranged on the cooling pipe 51 to drive the coolant to flow through the cooling pipe 51.

[0021] When the vacuum pump 31 is working, the cooling unit 4 cools the vacuum pump 31, and the coolant absorbs the heat of the vacuum pump 31, so its own temperature rises and the cooling capacity decreases. The driving pump 52 drives the coolant to flow through the cooling pipe 51. When passing through the clean water tank 1, the heat of the coolant is absorbed by the clean water in the clean water tank 1, the coolant temperature drops, and the cooling capacity is restored. Since the clean water tank 1 is large enough, it can ensure that the vacuum pump 31 obtains good heat dissipation for a long time. In addition, since the clean water tank 1 is the original structure of the cleaning sewage suction truck, there is no need to set up an additional heat dissipation device for the coolant, which reduces the occupied space.

[0022] In some embodiments, the sewage tank 2 is further connected to a sewage suction pipe 21 through which sewage is sucked.

[0023] In some embodiments, the cooling unit 4 includes a coolant storage tank 41, which is connected to the vacuum pump 31 and is used to transport the coolant into the vacuum pump 31. Both ends of the cooling pipe 51 are connected to the coolant storage tank 41. A certain amount of coolant is stored in the coolant storage tank 41, and the coolant can be clean water.

[0024] In some embodiments, the air inlet of the vacuum pump 31 is connected to the sewage tank 2, and the exhaust port of the vacuum pump 31 is connected to the coolant storage tank 41. When the vacuum pump 31 is working, suction is generated to suck the coolant in the coolant storage tank 41 into the vacuum pump 31. After the coolant absorbs the vaporization of the vacuum pump 31, it returns to the coolant storage tank 41 from the exhaust port of the vacuum pump 31.

[0025] In a preferred embodiment, the cooling unit 4 further includes a condenser 42 disposed at the air outlet of the coolant storage tank 41. The vaporized coolant is condensed into liquid by the condenser 42 and then drips back into the coolant storage tank 41 for reuse. The air drawn from the sewage tank 2 passes through the condenser 42 and is discharged into the atmosphere.

[0026] In a preferred embodiment, the vacuum pump unit 3 further includes a four-way reversing valve 32, and four interfaces of the four-way reversing valve 32 are respectively connected to the sewage tank 2, the air inlet of the vacuum pump 31, the air outlet of the coolant storage tank 41 and the external atmosphere.

[0027] When the sewage is being sucked, the four-way reversing valve 32 is controlled to connect the sewage tank 2 to the air inlet of the vacuum pump 31, and the air outlet of the coolant storage tank 41 to the outside atmosphere. The air in the sewage tank 2 is sucked into the air inlet of the vacuum pump 31 through the four-way reversing valve 32, and then enters the coolant storage tank 41 from the exhaust port of the vacuum pump 31, and then is discharged from the air outlet of the coolant storage tank 41 into the atmosphere through the four-way reversing valve 32.

[0028] When the sewage in the sewage tank 2 is discharged, the four-way reversing valve 32 is controlled to connect the air inlet of the vacuum pump 31 to the external atmosphere, and the sewage tank 2 is connected to the air outlet of the coolant storage tank 41. The vacuum pump 31 sucks in the external air, and the air enters the coolant storage tank 41 through the exhaust port of the vacuum pump 31, and then enters the sewage tank 2 through the four-way reversing valve 32, so that the air pressure in the sewage tank 2 is increased, and the sewage is discharged.

[0029] In some embodiments, the cooling pipe 51 needs to have good thermal conductivity, so a metal pipe is used. In addition, the cooling pipe 31 located in the clean water tank 1 is bent to increase the contact area.

[0030] In some embodiments, a temperature detector is disposed in the coolant storage tank 41 to indicate the temperature of the coolant.

[0031] In a preferred embodiment, a valve 53 is also provided on the cooling pipe 51, and the temperature detector is connected to the valve 53 and the drive pump 52 by signal control. When the temperature detector detects that the temperature of the coolant exceeds a preset threshold, the valve 53 is opened and the drive pump 52 is started to cool the coolant.

[0032] In other embodiments, the utility model further provides a sewage cleaning and suction truck, which includes the aforementioned vacuum pump belly system.

[0033] Compared with the prior art, the vacuum pump belly system provided by the utility model uses a cooling unit to cool the coolant, so that the coolant can restore the ability to cool the vacuum pump. The cooling pipe of the cooling unit passes through the clean water tank, and the clean water tank is used to absorb the heat of the coolant. Since the clean water tank is the original structure of the sewage cleaning truck, there is no need to additionally set up a heat dissipation device for the coolant, thereby reducing the occupied space.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum pump belly system, characterized in that: It includes: a clean water tank, a sewage tank, a vacuum pump unit, a cooling unit and a temperature reduction unit, wherein the vacuum pump unit includes a vacuum pump connected to the sewage tank; the cooling unit is connected to the vacuum pump, and the cooling unit has a coolant for cooling the vacuum pump; the temperature reduction unit includes a cooling pipe and a driving pump, both ends of the cooling pipe are connected to the cooling unit, part of the cooling pipe is located in the clean water tank and has thermal conductivity, and the driving pump is arranged on the cooling pipe to drive the coolant to flow through the cooling pipe.

2. The vacuum pump belly system according to claim 1, characterized in that: The cooling pipe is a metal pipe, and the portion of the cooling pipe located in the clean water tank is bent to increase the contact area.

3. The vacuum pump belly system according to claim 1, characterized in that: The cooling unit comprises a coolant storage tank, the coolant storage tank is connected to the vacuum pump, and both ends of the cooling pipeline are connected to the coolant storage tank.

4. The vacuum pump belly system according to claim 3, characterized in that: The air inlet of the vacuum pump is connected to the sewage tank, and the air outlet of the vacuum pump is connected to the coolant storage tank.

5. The vacuum pump belly system according to claim 4, characterized in that: The cooling unit further includes a condenser disposed at an air outlet of the coolant storage tank.

6. The vacuum pump belly system according to claim 5, characterized in that: The vacuum pump unit also includes a four-way reversing valve, and four interfaces of the four-way reversing valve are respectively connected to the sewage tank, the air inlet of the vacuum pump, the air outlet of the coolant storage tank and the external atmosphere.

7. The vacuum pump belly system according to claim 1, characterized in that: The sewage tank is also connected with a sewage suction pipe.

8. The vacuum pump belly system according to claim 3, characterized in that: A temperature detector is arranged in the coolant storage tank.

9. The vacuum pump belly system according to claim 8, characterized in that: The cooling pipeline is also provided with a valve, and the temperature detector is connected with the valve and the driving pump signal control.

10. A sewage cleaning and suction vehicle, characterized in that: It comprises the vacuum pump belly system as described in any one of claims 1-9.

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