Water spraying amount control device in construction process of pavement cold recycling machine

Abstract

The utility model belongs to the related technical field of pavement cold reclaimers, and particularly relates to a control device for the sprinkling amount in the construction process of a pavement cold reclaimer, which comprises a water pump, a water inlet pipe and a water outlet pipe, a flow distribution assembly is arranged on the water outlet pipe, and a return pipe is connected onto the flow distribution assembly. One end of the backflow pipe is connected to the flow distribution assembly, the other end of the backflow pipe is connected to the water inlet end of the water pump, and the flow distribution assembly is used for distributing flow to the water outlet pipe and the backflow pipe. The requirement for water sprinkling flow is met, meanwhile, the conditions that the pressure of an outlet of a water pump is increased and the system resistance is increased due to the fact that the diameter of the ball valve is decreased can be avoided, a water sprinkling control system tends to be reasonable, the service life of parts such as a centrifugal pump is effectively prolonged, faults are reduced, the transmission efficiency of the whole machine is improved, and the water sprinkling control system has considerable popularization value.

Description

Technical Field

[0001] The utility model belongs to the technical field related to road surface cold recycling machines, and particularly relates to a device for controlling the amount of water sprayed during the construction process of a road surface cold recycling machine. Background Art

[0002] At present, the sprinkler system during the construction of the pavement cold regeneration machine is connected by the following components: a sprinkler truck, a water pump, a ball valve, an inlet and outlet water pipe, etc. form a sprinkler system to complete the sprinkler operation during the construction of the cold regeneration machine. The size of the opening diameter of the ball valve is controlled by the sprinkler to meet the demand for sprinkler volume during the construction process.

[0003] However, this structure has a defect. Although the ball valve handle can control the watering flow rate to realize the watering function of the road surface cold regeneration machine, in the actual construction process, due to the changing working conditions, the watering volume often needs to be frequently reduced. To achieve this goal, the existing operation is to manipulate the ball valve handle to reduce it. However, at this time, the total flow of the centrifugal pump remains unchanged, and the outlet is forcibly closed, causing the load of the centrifugal pump to increase, which not only wastes the engine power, but also affects the efficiency and service life of the centrifugal pump. Utility Model Content

[0004] The utility model provides a device for controlling the watering amount during the construction process of a road surface cold regeneration machine, which can solve the problems pointed out in the background technology.

[0005] A device for controlling the amount of watering during the construction of a pavement cold regeneration machine comprises a water pump, a water inlet pipe and a water outlet pipe, wherein the water outlet pipe is provided with a flow distribution component, the flow distribution component is connected to a return pipe, one end of the return pipe is connected to the flow distribution component, and the other end is connected to the water inlet end of the water pump, and the flow distribution component is used to distribute flow to the water outlet pipe and the return pipe.

[0006] Preferably, the flow distribution component is a flow distribution valve.

[0007] Preferably, the flow distribution valve is a manual flow distribution valve, which includes a valve body, a valve core and a handle connected to the valve core, the valve body respectively having a water inlet connection end, a water outlet connection end and a return connection end, and the valve core is provided with water outlet holes corresponding to the water inlet connection end, the water outlet connection end and the return connection end.

[0008] Preferably, the reflux connection end is provided with a valve.

[0009] Preferably, the valve is a one-way valve.

[0010] Preferably, a water pressure measuring interface is provided on the valve body.

[0011] Preferably, the other end of the return pipe is connected to the water inlet pipe.

[0012] The utility model provides a device for controlling the amount of water sprinkled during the construction of a pavement cold regeneration machine, which can not only adjust the water sprinkler flow rate to ensure the demand for the water sprinkler flow rate, but also avoid the situation where the pressure at the water pump outlet increases and the system resistance increases due to the reduction in the diameter of the ball valve, so that the water sprinkler control system is more reasonable, the service life of the centrifugal pump and other parts is effectively extended, the occurrence of failures is reduced, and the transmission efficiency of the whole machine is improved, which has considerable promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the flow distribution valve of the utility model.

[0015] Figure 3 This is a schematic diagram of the closed position of the flow distribution valve of the utility model.

[0016] Figure 4 This is a schematic diagram of the fully open position of the flow distribution valve of the utility model.

[0017] Figure 5 This is a schematic diagram of the flow distribution valve of the utility model in a half-open position.

[0018] Description of reference numerals:

[0019] Reference numerals in the figure: water pump 1; water inlet pipe 2; water outlet pipe 3; return pipe 4; flow distribution valve 5; valve body 51; valve core 52; handle 53; water inlet connection end 54; water outlet connection end 55; return connection end 56; valve 57; water pressure measuring interface 58. DETAILED DESCRIPTION

[0020] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0021] Embodiment 1:

[0022] like Figure 1-2 As shown, an embodiment of the utility model provides a device for controlling the amount of watering during the construction of a pavement cold regeneration machine, comprising a water pump 1, a water inlet pipe 2 and a water outlet pipe 3, the end of the water outlet pipe 3 is a waterwheel-water pump connection end, a flow distribution component is provided on the water outlet pipe 3, a return pipe 4 is connected to the flow distribution component, one end of the return pipe 4 is connected to the flow distribution component, and the other end is connected to the water inlet end of the water pump 1, and the flow distribution component is used to distribute flow to the water outlet pipe 3 and the return pipe 4.

[0023] Specifically, the flow distribution component is a flow distribution valve 5, which is a manual flow distribution valve, including a valve body 51, a valve core 52 and a handle 53 connected to the valve core 52, the valve body 51 respectively has a water inlet connection end 54, a water outlet connection end 55 and a return connection end 56, the valve core 52 is provided with water outlet holes 59 corresponding to the water inlet connection end 54, the water outlet connection end 55 and the return connection end 56, and the number of the water outlet holes 59 is three, that is, a one-to-one corresponding relationship.

[0024] In some embodiments, the reflux connection end 56 is provided with a valve 57 , which is a one-way valve that can prevent water from flowing from the reflux pipe 4 into the flow distribution valve 5 .

[0025] In some embodiments, a water pressure measuring interface 58 is provided on the valve body 51 for connecting a pressure gauge, and the pressure of the valve body 51 is detected by the pressure gauge, and corresponding adjustments are made in turn.

[0026] Working principle of the present invention: The working principle is explained below through several positions of the valve core 52 of the flow distribution valve 5, but the adjustment is not limited to these positions.

[0027] Flow distribution valve 5 closed position: refer to Figure 3 As shown, when the cold regeneration machine does not need to be watered, the operating handle 53 closes the valve core 52. When the water pressure exceeds the set pressure, the valve 57 is opened, and the water passes through the valve 57, through the reflux pipe 4, and returns to the water inlet pipe 2 at the front end of the water pump 1.

[0028] Flow distribution valve 5 fully open position: refer to Figure 4 As shown, when the cold regeneration machine needs to be watered in large quantities, the handle 53 is operated to fully open the valve core 52, close the valve 57, and participate in the watering operation through the watering pipe.

[0029] Flow distribution valve 5 half-open position: refer to Figure 5 As shown, when the cold regeneration machine does not need a large amount of watering, the operating handle 53 makes the valve core 52 half-open, and watering is carried out through the sprinkler pipe. When the water pressure exceeds the set pressure, the valve 57 is opened, and part of the water passes through the valve 57 and the reflux pipe 4 and returns to the water inlet pipe 2 at the front end of the water pump 1.

[0030] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A device for controlling the amount of water sprayed during the construction of a road surface cold regeneration machine, comprising a water pump (1), a water inlet pipe (2) and a water outlet pipe (3), characterized in that: The outlet pipe (3) is provided with a flow distribution component, the flow distribution component is connected to a return pipe (4), one end of the return pipe (4) is connected to the flow distribution component, and the other end is connected to the water inlet end of the water pump (1), and the flow distribution component is used to distribute the flow to the outlet pipe (3) and the return pipe (4).

2. According to claim 1, a device for controlling the amount of water sprayed during the construction of a pavement cold regeneration machine is characterized in that: The flow distribution component is a flow distribution valve (5).

3. The device for controlling the amount of water sprayed during the construction of a road surface cold recycling machine according to claim 2, characterized in that: The flow distribution valve (5) is a manual flow distribution valve, comprising a valve body (51), a valve core (52) and a handle (53) connected to the valve core (52); the valve body (51) is provided with a water inlet connection end (54), a water outlet connection end (55) and a return connection end (56); the valve core (52) is provided with a water outlet hole (59) corresponding to the water inlet connection end (54), the water outlet connection end (55) and the return connection end (56).

4. The device for controlling the amount of water sprayed during the construction of a road surface cold recycling machine according to claim 3 is characterized in that: The return connection end (56) is provided with a valve (57).

5. The device for controlling the amount of water sprayed during the construction of a road surface cold recycling machine according to claim 4, characterized in that: The valve (57) is a one-way valve.

6. The device for controlling the amount of water sprayed during the construction of a road surface cold recycling machine according to claim 5, characterized in that: The valve body (51) is provided with a water pressure measuring interface (58).

7. A device for controlling the amount of water sprayed during the construction of a pavement cold regeneration machine according to any one of claims 1 to 6, characterized in that: The other end of the return pipe (4) is connected to the water inlet pipe (2).

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