Pressure-adjustable double-branch road surface cleaning system and cleaning method

Abstract

The pressure-adjustable double-branch road surface cleaning system comprises a water tank, a high-pressure water pump, a pipeline, a pressure adjusting valve and a nozzle, the pipeline is composed of a first pipeline and a second pipeline, the first pipeline is sequentially provided with the water tank, the high-pressure water pump, the pressure adjusting valve and the nozzle, one end of the second pipeline is connected into the first pipeline, and the other end of the second pipeline is connected into the pressure adjusting valve. According to the water supply system, under the condition that the overflow valve and the pressure regulating valve do not need to be repeatedly regulated, water flow in the second branch pipeline can be rapidly supplemented to the first branch pipeline, the stable condition of the water pressure of the first branch pipeline is powerfully guaranteed, and a solid foundation is provided for stable water supply.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface cleaning devices, and in particular to a pressure-adjustable dual-branch road surface cleaning system and a cleaning method. Background Art

[0002] Road cleaning is a key task in urban environmental protection, and it has positive significance for maintaining roads, improving tire friction, and keeping clean and tidy. At present, common road cleaning methods include using sprinkler trucks for cyclic operations, spraying high-pressure water to impact the road surface, and removing pollutants such as dust, soil and debris; there is also manual scrubbing, where cleaning personnel use tools such as brooms and brushes to carefully clean stubborn stains and corners on the road surface. However, current road cleaning operations widely rely on the cyclic operation of sprinkler trucks, which consumes a lot of manpower and material resources while causing varying degrees of road congestion and operation disturbance. For example, during peak traffic hours, the slow operation of sprinkler trucks will reduce the efficiency of the already busy roads, and the noise generated by the operation of sprinkler trucks will also interfere with the lives of surrounding residents. At the same time, the existing water supply methods, such as the same-way water supply, have the problem of unstable water pressure, which will lead to uneven cleaning effects, incomplete cleaning of some areas, and affect the overall road cleaning quality. Summary of the invention

[0003] The purpose of the present invention is to provide a dual-branch road cleaning system with adjustable pressure to solve the problem of unstable water supply pressure when providing water source for the cleaning system by using the same-route water supply method mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a pressure-adjustable dual-branch road cleaning system, comprising a water tank, a high-pressure water pump, a pipeline, a pressure regulating valve and a nozzle, wherein the pipeline is composed of a first pipeline and a second pipeline, wherein the water tank, the high-pressure water pump, the pressure regulating valve and the nozzle are sequentially installed on the first pipeline, one end of the second pipeline is connected to the first pipeline and is located between the high-pressure water pump and the pressure regulating valve, and the other end is connected to the end of the first pipeline,

[0005] The pressure regulating valve is installed close to the nozzle. The pressure regulating valve adopts a three-way structure, in which a water outlet on one side is connected to the second pipe, an overflow valve is installed on the second pipe, and the overflow valve is installed between the water inlet on the second pipe and the pressure regulating valve. A check valve is also installed between the first pipe and the second pipe. The water flow of the check valve flows from the second pipe to the first pipe. The check valve is located after the nozzle at the first pipe interface, and the check valve is located after the pressure regulating valve interface at the second pipe interface.

[0006] Furthermore, the number of the pressure regulating valves and the number of the nozzles are the same, and more than two of each are provided, and one pressure regulating valve is used in conjunction with one nozzle.

[0007] Furthermore, a check valve is arranged between the two groups of pressure regulating valves and the nozzle.

[0008] Furthermore, a first ball valve and a filter are installed in sequence between the first pipeline upper water tank and the high-pressure water pump.

[0009] Furthermore, a pressure gauge is installed between the high-pressure water pump and the second pipeline interface on the first pipeline.

[0010] Furthermore, a second ball valve is installed between the water inlet on the second pipeline and the overflow valve.

[0011] Furthermore, when high pressure cleaning is performed, the working process is as follows:

[0012] The first step is to close the second ball valve, and then open the first ball valve; after the water flows out of the water tank, it flows through the filter through the pipe to filter out impurities in the water;

[0013] The second step is to turn on the high-pressure water pump and observe through the pressure gauge to make the water pressure reach the preset value;

[0014] The third step is to adjust all the pressure regulating valves to the preset value, and the preset value of the pressure regulating valve is less than the preset value of the inflow water pressure; at this time, part of the water flows through the pressure regulating valve and continues to move along the first pipe, and the other part enters the second pipe, and the water pressure of the two pipes is the preset value of the pressure regulating valve; then part of the water in the first pipe is sprayed out through the nozzle, and the other part continues to move along the first pipe. After that, the water pressure in the first pipe is less than that in the second pipe. Under the action of pressure, the water in the second pipe flows into the first pipe through the check valve to stabilize the water flow pressure in the first pipe;

[0015] When low pressure cleaning is performed, the working process is as follows:

[0016] In the first step, the first ball valve and the second ball valve are opened at the same time. After the water flow is pressurized by the high-pressure water pump, the water flow will flow to the overflow valve through the second ball valve. The overflow valve adjusts the water pressure in the second pipeline and adjusts the outlet pressure of the high-pressure water pump to keep it at a constant low pressure. Part of the water flow in the first pipeline flows into the nozzle after passing through the pressure regulating valve, and the other part flows into the second pipeline. When the water pressure in the first pipeline is lower than the water pressure in the second pipeline, the water flow in the second pipeline will flow into the branch pipeline through the check valve in one direction to stabilize the water flow pressure in the first pipeline.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) In the long-distance water flow transportation scenario, the present invention can quickly replenish the water flow in the second pipeline to the first pipeline without repeated adjustment of the overflow valve and the pressure regulating valve, effectively ensuring the stability of the water pressure in the first pipeline and providing a solid foundation for stable water supply. The present invention can also realize the switching between high-pressure cleaning and low-pressure cleaning modes, and during operation, through the innovative dual-branch water flow circulation design, excess water will flow into the second pipeline through the overflow valve, and continue to replenish the water flow for the first pipeline, greatly saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the system water circuit structure of the specific implementation method of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall system structure of the specific implementation method of the present invention.

[0022] Figure 3 It is a three-dimensional schematic diagram of the system structure of the specific implementation method of the present invention.

[0023] Figure 4 It is a schematic diagram of local parts of a specific implementation method of the present invention.

[0024] Figure 5 It is a schematic diagram of local parts of a specific implementation method of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Water tank; 2. First ball valve; 3. Filter; 4. High-pressure water pump; 5. Pressure gauge; 6. Second ball valve; 7. Overflow valve; 8. Pressure regulating valve; 9. Nozzle; 10. Check valve; 11. First pipeline; 12. Second pipeline. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5The present invention provides a technical solution: a pressure-adjustable dual-branch road cleaning system, comprising a water tank 1, a high-pressure water pump 4, a pipeline, a pressure regulating valve 8 and a nozzle 9, wherein the pipeline is composed of a first pipeline 11 and a second pipeline 12, wherein the first pipeline The water tank 1, the high-pressure water pump 4, the pressure regulating valve 8 and the nozzle 9 are sequentially installed on the first pipe 11. One end of the second pipe 12 is connected to the first pipe 11 and is located between the high-pressure water pump 4 and the pressure regulating valve 8. The other end is connected to the end of the first pipe 11.

[0029] The pressure regulating valve 8 is installed close to the nozzle 9. The pressure regulating valve 8 adopts a three-way structure, wherein the water inlet and the water outlet on one side are connected to the first pipe 11, and the water outlet on the other side is connected to the second pipe 12. The second pipe 12 is installed with an overflow valve 7, and the overflow valve 7 is installed between the water inlet 12 on the second pipe and the pressure regulating valve 8. A check valve 10 is also installed between the first pipe 11 and the second pipe 12. The water of the check valve 10 flows from the second pipe 12 to the first pipe 11. The check valve 10 is located after the nozzle 9 at the interface of the first pipe 11, and the check valve 10 is located after the interface of the pressure regulating valve 8 at the interface of the second pipe 12.

[0030] The pressure regulating valves 8 and nozzles 9 are of the same number, and are provided in plurality, one pressure regulating valve is used in conjunction with one nozzle; the set pressure of the overflow valve 7 is less than the set pressure of the pressure regulating valve 8, and the set pressures of the pressure regulating valves 8 are consistent; at this time, part of the water flows through the pressure regulating valve 8 and continues to move along the first pipe 11, while the other part enters the second pipe 12, and the water pressures of the two pipes are both preset values ​​of the pressure regulating valve 8; then part of the water in the first pipe 11 is sprayed out through the nozzle 9, and the other part continues to move along the first pipe 11;

[0031] A check valve 10 is arranged between the two groups of pressure regulating valves 8 and the nozzle 9 .

[0032] When the water pressure in the first pipe 11 is lower than that in the second pipe 12, under the action of pressure, the water in the second pipe 12 flows into the first pipe 11 through the check valve 10, stabilizing the water flow pressure in the first pipe 11;

[0033] A first ball valve 2 and a filter 3 are sequentially installed between the water tank 1 and the high-pressure water pump 4 on the first pipeline 11. After the water flows out of the water tank 1, it flows through the filter 3 through the pipeline to filter impurities in the water to prevent the impurities from entering the high-pressure water pump 4;

[0034] A pressure gauge 5 is installed between the high-pressure water pump 4 on the first pipe 11 and the interface of the second pipe 12. The pressurized water flows through the pressure gauge 5, and the pressure gauge 5 can observe the water flow pressure.

[0035] A second ball valve 6 is installed between the water inlet on the second pipeline 12 and the overflow valve 7 .

[0036] When high pressure cleaning is performed, the working process is as follows:

[0037] In the first step, the second ball valve 6 is closed, and then the first ball valve 2 is opened; after the water flows out of the water tank 1, it flows through the filter 3 through the pipeline to filter out impurities in the water;

[0038] The second step is to turn on the high-pressure water pump 4 and observe through the pressure gauge 5 to make the water pressure reach the preset value;

[0039] The third step is to adjust all the pressure regulating valves 8 to the preset value, and the preset value of the pressure regulating valve 8 is less than the preset value of the inflow water pressure; at this time, part of the water flows through the pressure regulating valve 8 and continues to move along the first pipe 11, and the other part enters the second pipe 12, and the water pressure of the two pipes is the preset value of the pressure regulating valve 8; then part of the water in the first pipe 11 is sprayed out through the nozzle 9, and the other part continues to move along the first pipe 11. After that, the water pressure in the first pipe 11 is less than that in the second pipe 12. Under the action of pressure, the water in the second pipe 12 flows into the first pipe 11 through the check valve 10, stabilizing the water flow pressure in the first pipe;

[0040] When low pressure cleaning is performed, the working process is as follows:

[0041] In the first step, the first ball valve 2 and the second ball valve 6 are opened at the same time. After the water flow is pressurized by the high-pressure water pump 4, the water flow will flow to the overflow valve 7 through the second ball valve 6. The overflow valve 7 adjusts the water pressure of the second pipeline and adjusts the outlet pressure of the high-pressure water pump 5 to maintain a constant low pressure. A part of the water flow in the first pipeline 11 flows into the nozzle 9 after passing through the pressure regulating valve 8, and the other part flows into the second pipeline 12. When the water pressure of the first pipeline 11 is less than the water pressure of the second pipeline 12, the water flow of the second pipeline 12 will flow into the first pipeline through the check valve 10 in one direction, thereby stabilizing the water flow pressure in the first pipeline 11.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure-adjustable dual-branch road cleaning system, comprising a water tank, a high-pressure water pump, a pipeline, a pressure regulating valve and a nozzle, characterized in that: The pipeline is composed of a first pipeline and a second pipeline. A water tank, a high-pressure water pump, a pressure regulating valve and a nozzle are installed on the first pipeline in sequence. One end of the second pipeline is connected to the first pipeline and is located between the high-pressure water pump and the pressure regulating valve. The other end is connected to the end of the first pipeline. The pressure regulating valve is installed close to the nozzle. The pressure regulating valve adopts a three-way structure, in which a water outlet on one side is connected to the second pipe, an overflow valve is installed on the second pipe, and the overflow valve is installed between the water inlet on the second pipe and the pressure regulating valve. A check valve is also installed between the first pipe and the second pipe. The water flow of the check valve flows from the second pipe to the first pipe. The check valve is located after the nozzle at the first pipe interface, and the check valve is located after the pressure regulating valve interface at the second pipe interface.

2. The pressure-adjustable dual-branch road cleaning system according to claim 1, characterized in that: The number of the pressure regulating valves and the number of the nozzles are the same, and more than two of each are provided, and one pressure regulating valve is used in conjunction with one nozzle.

3. The pressure-adjustable dual-branch road cleaning system according to claim 1, characterized in that: A check valve is arranged between the two groups of pressure regulating valves and the nozzle.

4. The pressure-adjustable dual-branch road cleaning system according to claim 1, characterized in that: A first ball valve and a filter are installed in sequence between the first pipeline upper water tank and the high-pressure water pump.

5. The pressure-adjustable dual-branch road cleaning system according to claim 1, characterized in that: A pressure gauge is installed between the high-pressure water pump and the second pipeline interface on the first pipeline.

6. The pressure-adjustable dual-branch road cleaning system according to claim 1, characterized in that: A second ball valve is installed between the water inlet on the second pipeline and the overflow valve.

7. A pressure-adjustable dual-branch road cleaning method according to claims 1-6, characterized in that: When high pressure cleaning is performed, the working process is as follows: The first step is to close the second ball valve, and then open the first ball valve; after the water flows out of the water tank, it flows through the filter through the pipe to filter out impurities in the water; The second step is to turn on the high-pressure water pump and observe through the pressure gauge to make the water pressure reach the preset value; The third step is to adjust all the pressure regulating valves to the preset value, and the preset value of the pressure regulating valve is less than the preset value of the inflow water pressure; at this time, part of the water flows through the pressure regulating valve and continues to move along the first pipe, and the other part enters the second pipe, and the water pressure of the two pipes is the preset value of the pressure regulating valve; then part of the water in the first pipe is sprayed out through the nozzle, and the other part continues to move along the first pipe. After that, the water pressure in the first pipe is less than that in the second pipe. Under the action of pressure, the water in the second pipe flows into the first pipe through the check valve to stabilize the water flow pressure in the first pipe; When low pressure cleaning is performed, the working process is as follows: In the first step, the first ball valve and the second ball valve are opened at the same time. After the water flow is pressurized by the high-pressure water pump, the water flow will flow to the overflow valve through the second ball valve. The overflow valve adjusts the water pressure in the second pipeline and adjusts the outlet pressure of the high-pressure water pump to keep it at a constant low pressure. Part of the water flow in the first pipeline flows into the nozzle after passing through the pressure regulating valve, and the other part flows into the second pipeline. When the water pressure in the first pipeline is lower than the water pressure in the second pipeline, the water flow in the second pipeline will flow into the branch pipeline through the check valve in one direction to stabilize the water flow pressure in the first pipeline.

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