Dust suppression vehicle water pump temperature adjusting device capable of avoiding freezing

Abstract

The invention belongs to the technical field of urban environmental sanitation vehicles, and particularly relates to an anti-icing dust suppression vehicle water pump temperature adjusting device which comprises a vehicle chassis, a control system, a water pump system, a heat conduction system and a heat tracing system. The automobile chassis comprises an automobile silencer, an automobile exhaust pipe, an automobile girder and an air outlet pipe. The control system comprises a three-way air valve, an electric control system and a temperature sensor, and the electric control system controls the three-way air valve and the heat tracing system and controls switching of a first air outlet connector and a second air outlet connector of the three-way air valve. The temperature sensor is installed at a water outlet of the water pump and connected with the electric control system, the temperature sensor detects the water flow temperature and feeds back the water flow temperature to the electric control system, and starting, switching and closing of the three-way air valve and the heat tracing system are controlled. In order to solve the problem that water injection or mist spraying cannot be carried out due to the fact that the water pump is prone to freezing in winter, the heat tracing system and the heat conduction system are arranged, the water pump temperature adjusting effect is fast and efficient, and more energy saving and environment protection are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of urban sanitation vehicles, and in particular relates to a temperature regulating device for a water pump of a dust suppression vehicle for preventing icing. Background Art

[0002] Dust suppression vehicles are special vehicles used to suppress road dust and reduce the concentration of dust particles in the air. They are widely used in environmental management work in urban roads, construction sites, mining areas, ports and other places. It reduces suspended particulate matter in the air by spraying water or dust suppressants, thereby improving air quality and protecting people's health. When the dust suppression vehicle is working, the water or dust suppressant is pressurized by the on-board water pump, and the liquid is atomized into tiny water droplets through the spraying device. The water droplets combine with the dust particles in the air, increasing their weight and settling them to the ground, achieving the effect of cleaning the air. Depending on the model, the water tank capacity of the dust suppression vehicle usually ranges from a few tons to dozens of tons, and it can continue to operate for a long time.

[0003] When the dust suppression vehicle is used in winter, the water pump is located in the lower middle part of the vehicle body and the water injection interface is exposed. If the residual water in the water pump is not discharged or the water pump is not protected from freezing, the freezing expansion may cause the pump body, impeller, pipes and seals to freeze and crack, causing irreversible mechanical damage. In the case of ice, the impeller, stirring disc and other parts of the water pump may get stuck, the water flow is blocked, and the water pump cannot be started or the impeller is damaged when starting. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the problem to be solved by the present invention is that in winter, the water pump of the dust suppression vehicle is prone to ice formation in the impeller, stirring disk and other parts due to the residual water not being discharged, which affects the water injection or spraying operation, and at the same time, damages the water pump when it is started. The present invention provides a temperature regulating device for the water pump of the dust suppression vehicle to avoid ice formation. Before preparing for operation in winter, the three-ventilation valve is switched by the switch in the cab, and the exhaust gas of the automobile is transmitted to the heat collecting cover through the heat conducting pipe, and then the heat collecting cover dissipates the collected heat to the pump body shell. At the same time, an electric heating belt and a thermal insulation layer are arranged on the water pump, which can quickly melt the ice in the water pump, and also avoid ice formation during the subsequent suspension of the water pump, so as to ensure the normal operation of the water pump.

[0005] In order to achieve the above object, the present invention provides a dust suppression vehicle water pump temperature regulating device for preventing icing, comprising a vehicle chassis, a control system, a water pump system, a heat conduction system, and a heat tracing system.

[0006] The automobile chassis comprises an automobile muffler, an automobile exhaust pipe, an automobile beam, and an exhaust pipe. The outer surface of the automobile muffler is connected to the lower surface of the automobile beam, the exhaust pipe is connected to the automobile muffler, and three ventilation valves are installed between the automobile exhaust pipe and the automobile muffler.

[0007] The control system includes three ventilation valves, an electric control system, and a temperature sensor. The air inlet interface of the three ventilation valves is connected to the exhaust pipe of the automobile, the first air outlet interface of the three ventilation valves is connected to the muffler of the automobile, and the second air outlet interface of the three ventilation valves is connected to the heat conduction pipe; the electric control system includes an electric control switch and a control line, and the two ends of the electric control switch are respectively connected to one end of the control line and the automobile beam. The electric control system controls the three ventilation valves and the heating system, and controls the switching between the first air outlet interface and the second air outlet interface of the three ventilation valves; the temperature sensor is installed at the water outlet of the water pump and connected to the electric control system. The temperature sensor detects the water flow temperature and feeds back to the electric control system to control the start, switch and shutdown of the three ventilation valves and the heating system.

[0008] The water pump system comprises a water pump body and a water pump bracket, wherein the water pump bracket is connected to the vehicle frame, and the water pump body is mounted on the water pump bracket;

[0009] The heat conduction system includes a heat conduction pipe, a heat conduction bracket, and a heat collection cover. The heat conduction pipe is installed on the heat conduction bracket. The other end of the heat conduction pipe is connected to the heat collection cover. The heat conduction bracket is detachably fixed on the upper surface of the automobile beam. The heat collection cover conducts the heat of the exhaust pipe to the water pump body.

[0010] The heating system includes a heating belt, a sponge insulation layer, and tinfoil tape. The heating belt includes a conductive polymer, a metal wire, and an insulating sheath. The heating belt is connected to an electronic control system and a battery of a dust suppression vehicle. The heating belt is evenly wound on the surface of a water pump body. The sponge insulation layer covers the water pump body and the outside of the heating belt. The head end, tail end, and center of the heating belt are fixed to the water pump body by tinfoil tape.

[0011] According to a temperature regulating device in another embodiment of the present invention or any of the aforementioned embodiments, the vehicle chassis further comprises a fixing clamp, and a plurality of the fixing clamps are evenly arranged on the vehicle muffler and fix the vehicle muffler on the vehicle beam.

[0012] According to a temperature regulating device according to another embodiment of the present invention or any of the aforementioned embodiments, the heat collecting cover is trumpet-shaped, and half of the heat collecting cover covers one end of the water pump system.

[0013] According to a temperature regulating device in another embodiment of the present invention or any of the aforementioned embodiments, the heat collecting cover is provided with a plurality of branch pipes and nozzles, the branch pipes are connected to the nozzles, and each nozzle faces various locations of the water pump body.

[0014] According to a temperature regulating device according to another embodiment of the present invention or any of the aforementioned embodiments, there are two water pump brackets fixedly connected to the water pump body.

[0015] According to another embodiment of the present invention or a temperature regulating device of any of the aforementioned embodiments, the electric control system further includes a hydraulic rod, a switch rod, a hydraulic linkage rod and a connecting shaft, one side surface of the electric control switch is connected to one side surface of the hydraulic linkage rod, one end of the hydraulic rod, the switch rod and the hydraulic linkage rod are all provided with a through hole, the connecting shaft is connected to the through hole, one side surface of the switch rod is connected to one side surface of the three-ventilation valve, and the switch rod is manually pressed to switch the connection between the three-ventilation valve and the automobile muffler and the heat transfer pipe.

[0016] According to a temperature regulating device according to another embodiment of the present invention or any of the aforementioned embodiments, the three-ventilation valve is a solenoid valve, and the electric control system uses an electric signal to control the opening and closing of two air outlets of the three-ventilation valve.

[0017] According to a temperature regulating device according to yet another embodiment of the present invention or any of the aforementioned embodiments, the electric control system is a button or remote control.

[0018] Beneficial effects of the present invention:

[0019] 1. The dust suppression vehicle water pump temperature regulating device for preventing freezing described in the present invention aims to solve the problem that the water pump is prone to freezing in winter and cannot be injected or sprayed. By setting a dual heating system of a heating system and a heat conduction system, the temperature regulation effect of the water pump is fast and efficient. It is suitable for hybrid new energy dust suppression vehicles, and can also intelligently control whether to use a heating belt or exhaust pipe waste heat for heating or insulation when the water pump is working normally or paused.

[0020] 2. The present invention detects the temperature of the water flow in the water pump through a temperature sensor, turns off the heating system when the temperature is high, switches the exhaust pipe to the car muffler to reduce the noise of the dust suppression vehicle, and when the temperature drops below the critical value and there is a risk of freezing, the heating system or the exhaust pipe waste heat is started according to the remaining battery power and the noise requirements of the driving section, which can maximize the satisfaction of the water pump temperature regulation needs under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side structural schematic diagram of the temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the heating belt of the temperature regulating device for the water pump of a dust suppression vehicle for preventing icing according to the present invention after it is exposed from the insulation layer;

[0023] Figure 3 A schematic diagram of the external structure of a water pump system of a water pump temperature regulating device for a dust suppression vehicle to avoid freezing according to the present invention;

[0024] Figure 4 The dust suppression vehicle water pump temperature regulating device for preventing icing according to the present invention Figure 2A partial enlarged schematic diagram in the middle.

[0025] In the figure: 100, automobile chassis; 110, automobile muffler; 120, automobile exhaust pipe; 130, automobile beam; 140, fixed clamp; 150, exhaust pipe; 200, control system; 210, electric control system; 211, electric control switch; 212, control line; 213, hydraulic rod; 214, switch rod; 215, hydraulic linkage rod; 216, connecting shaft; 220, three-ventilation valve; 300, heat conduction system; 310, heat conduction pipe; 320, heat collecting cover; 330, heat conduction bracket; 400, water pump system; 410, water pump body; 420, water pump bracket; 430, temperature sensor; 500, heating system; 510, heating belt. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1 , 2 As shown, a temperature regulating device for a water pump of a dust suppression vehicle for preventing icing includes a vehicle chassis 100, a control system 200, a water pump system 400, a heat conduction system 300, and a heat tracing system 500.

[0028] like Figure 1 , 2 As shown, the automobile chassis 100 includes an automobile muffler 110, an automobile exhaust pipe 120, an automobile frame 130, and an exhaust pipe 150. The outer surface of the automobile muffler 110 is connected to the lower surface of the automobile frame 130, the exhaust pipe 150 is connected to the automobile muffler 110, and a three-ventilation valve 220 is installed between the automobile exhaust pipe 120 and the automobile muffler 110. The automobile chassis 100 also includes a fixing clamp 140, and a plurality of fixing clamps 140 are evenly arranged on the automobile muffler 110 and fix the automobile muffler 110 on the automobile frame 130.

[0029] like Figure 1 , 4As shown, the control system 200 includes three ventilation valves 220, an electric control system 210, and a temperature sensor 430. The air inlet interface of the three ventilation valves 220 is connected to the automobile exhaust pipe 120, the first air outlet interface of the three ventilation valves 220 is connected to the automobile muffler 110, and the second air outlet interface of the three ventilation valves 220 is connected to the heat conduction pipe 310; the electric control system 210 includes an electric control switch 211 and a control line 212, and the two ends of the electric control switch 211 are respectively connected to one end of the control line 212 and the automobile beam 130. The electric control system 210 controls the three ventilation valves 220 and the heating system 500, and controls the switching between the first air outlet interface and the second air outlet interface of the three ventilation valves 220; the temperature sensor 430 is installed at the water outlet of the water pump and connected to the electric control system 210. The temperature sensor 430 detects the water flow temperature and feeds back to the electric control system 210 to control the start, switch and shutdown of the three ventilation valves 220 and the heating system 500. The electric control system 210 is controlled by buttons or remote control. The three-ventilation valve 220 may be a solenoid valve, and the electric control system 210 uses an electric signal to control the opening and closing of the two air outlets of the three-ventilation valve 220. The three-ventilation valve 220 may also be a manual regulating valve, and the electric control system 210 also includes a hydraulic rod 213, a switch rod 214, a hydraulic linkage rod 215, and a connecting shaft 216. The surface of one side of the electric control switch 211 is connected to the surface of one side of the hydraulic linkage rod 215. The hydraulic rod 213, the switch rod 214, and one end of the hydraulic linkage rod 215 are all provided with through holes, and the connecting shaft 216 is connected to the through hole. The surface of one side of the switch rod 214 is connected to the surface of one side of the three-ventilation valve 220. The switch rod 214 is manually pressed to switch the connection between the three-ventilation valve 220 and the automobile muffler 110 and the heat transfer pipe 310.

[0030] like Figure 1 , 3 As shown, the water pump system 400 includes a water pump body 410 and a water pump bracket 420 . The water pump bracket 420 is connected to the automobile frame 130 , and the water pump body 410 is mounted on the water pump bracket 420 . Two water pump brackets 420 may be selected and fixedly connected to the water pump body 410 .

[0031] like Figure 1 , 2 As shown in , 3, the heat conduction system 300 includes a heat conduction pipe 310, a heat conduction bracket 330, and a heat collection cover 320. The heat conduction pipe 310 is installed on the heat conduction bracket 330. The other end of the heat conduction pipe 310 is connected to the heat collection cover 320. The heat conduction bracket 330 is detachably fixed on the upper surface of the automobile beam 130. The heat collection cover 320 conducts the heat of the exhaust pipe to the water pump body 410. The heat collection cover 320 can be selected in a variety of styles, such as a trumpet shape, and the heat collection cover 320 half covers one end of the water pump system 400. The heat collection cover 320 can also be provided with a plurality of branch pipes and nozzles, the branch pipes are connected to the nozzles, and each nozzle faces various parts of the water pump body 410.

[0032] like Figure 2 As shown, the heating system 500 includes a heating belt 510, a sponge insulation layer, and tinfoil tape. The heating belt 510 includes a conductive polymer, a metal wire, and an insulating sheath. The heating belt 510 is connected to the electric control system 210 and the battery of the dust suppression vehicle. The heating belt 510 is evenly wound on the surface of the water pump body 410. The sponge insulation layer covers the water pump body 410 and the outside of the heating belt 510. The head end, tail end, and center of the heating belt 510 are fixed to the water pump body 410 by tinfoil tape.

[0033] The following is the working principle of the present invention:

[0034] Please refer to Figure 1-4 As shown, the present invention is a temperature regulating device for a water pump of a dust suppression vehicle to avoid freezing. The dual heating structure is adopted. Through the continuous heating of the heating belt 510 and the reuse of the waste heat of the exhaust pipe, the temperature of the water pump can always be maintained within an appropriate range, avoiding the freezing problem caused by low temperature, and ensuring the normal operation of the water pump in winter or extremely cold conditions. If the water pump has frozen at low temperatures, the heating belt 510 and the waste heat system of the exhaust pipe can accelerate the melting of the ice, quickly restore the normal working state of the water pump, and avoid long-term shutdown.

[0035] By utilizing the waste heat from the exhaust pipe, the wasted heat can be reused, reducing the need for additional heating and the energy consumption of the electric heating cable 510, thus achieving energy saving. At the same time, this solution is more environmentally friendly than pure electric heating, and can reduce energy consumption and carbon emissions.

[0036] like Figure 2 As shown, the heating belt 510 is an electric heating device that generates heat by powering on. The heating belt 510 is wound around the outer surface of the water pump, and the heating belt 510 transfers heat to the water pump and its internal pipes by heat conduction, thereby increasing the temperature of the pump body and preventing the water in the water pump from freezing in a low temperature environment.

[0037] The exhaust gas in the exhaust pipe of the water pump carries a large amount of waste heat during operation. By designing a heat transfer system 300, the waste heat is directed to the key parts of the water pump (such as the pump body, pipes and valves), and the waste heat of the exhaust pipe is used to heat the water pump to prevent it from freezing, or to melt the frozen parts.

[0038] The model of the three-ventilation valve 220 of the present invention can be Q44 / 5F, and the model of the heating belt 510 can be Tiankang DBR-25-220-P. When the car is started, the three-ventilation valve 220 is switched to the second air outlet interface and connected to the heat-conducting pipe 310, and the heating belt 510 is powered on. The automobile exhaust passes through the heat-conducting pipe 310 and the heat-collecting cover 320, so that the heat absorbed from the exhaust pipe is concentrated and dissipated to the pump body shell of the water pump body 410, and the heating belt 510 heats the water pump body 410 to provide heat synchronously. After waiting for a period of time, the operation of the water pump body 410 is started, and the temperature sensor 430 detects the water outlet temperature of the water pump. When the temperature is high, the heating system 500 is turned off, and the exhaust pipe is switched to the automobile muffler 110 to reduce the noise of the dust suppression vehicle. When the temperature drops below the critical value and there is a risk of freezing, according to the remaining battery power and the noise requirements of the driving section, the heating system 500 or the exhaust pipe residual heat is started, which can meet the water pump temperature regulation requirements of different working conditions to the maximum extent.

[0039] The present invention is applicable to hybrid new energy dust suppression vehicles, and can also intelligently control whether to use the heating belt 510 or the exhaust pipe waste heat for heating or insulation when the water pump is working normally or suspended. Hybrid new energy vehicles have engines and batteries. When the pure electric mode is used and the engine is not started, heat cannot be discharged from the automobile exhaust pipe 120. At this time, the heat conduction system 300 cannot work effectively, and the water pump can be mainly regulated by the heating system 500.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above implementation is only to illustrate the technical concept and features of the present invention, and its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust suppression vehicle water pump temperature regulating device for preventing icing, comprising a vehicle chassis (100), a control system (200), a water pump system (400), a heat conduction system (300), and a heat tracing system (500), The automobile chassis (100) comprises an automobile muffler (110), an automobile exhaust pipe (120), an automobile beam (130), and an exhaust pipe (150); the outer surface of the automobile muffler (110) is connected to the lower surface of the automobile beam (130); the exhaust pipe (150) is connected to the automobile muffler (110); and a three-ventilation valve (220) is installed between the automobile exhaust pipe (120) and the automobile muffler (110). The control system (200) comprises three ventilation valves (220), an electric control system (210), and a temperature sensor (430); the air inlet interface of the three ventilation valves (220) is connected to the automobile exhaust pipe (120); the first air outlet interface of the three ventilation valves (220) is connected to the automobile muffler (110); and the second air outlet interface of the three ventilation valves (220) is connected to the heat conduction pipe (310); the electric control system (210) comprises an electric control switch (211) and a control line (212); two ends of the electric control switch (211) are connected to the heat conduction pipe (310); The electric control system (210) is connected to one end of the control line (212) and the automobile beam (130), and the electric control system (210) controls the three ventilation valves (220) and the heating system (500), and controls the switching between the first air outlet interface and the second air outlet interface of the three ventilation valves (220); the temperature sensor (430) is installed at the water outlet of the water pump and connected to the electric control system (210), and the temperature sensor (430) detects the water flow temperature and feeds back to the electric control system (210), and controls the start, switch and shutdown of the three ventilation valves (220) and the heating system (500). The water pump system (400) comprises a water pump body (410) and a water pump bracket (420), wherein the water pump bracket (420) is connected to the automobile beam (130), and the water pump body (410) is mounted on the water pump bracket (420); The heat conduction system (300) comprises a heat conduction pipe (310), a heat conduction bracket (330), and a heat collection cover (320); the heat conduction pipe (310) is mounted on the heat conduction bracket (330); the other end of the heat conduction pipe (310) is connected to the heat collection cover (320); the heat conduction bracket (330) is detachably fixed to the upper surface of the automobile beam (130); the heat collection cover (320) conducts the heat of the exhaust pipe to the water pump body (410); The heating system (500) comprises a heating belt (510), a sponge insulation layer, and a tin foil tape. The heating belt (510) comprises a conductive polymer, a metal wire, and an insulating sheath. The heating belt (510) is connected to an electric control system (210) and a battery of a dust suppression vehicle. The heating belt (510) is evenly wound on the surface of a water pump body (410). The sponge insulation layer covers the water pump body (410) and the outside of the heating belt (510). The head end, tail end, and center of the heating belt (510) are fixed to the water pump body (410) by tin foil tape.

2. A dust suppression vehicle water pump temperature regulating device for preventing icing according to claim 1, characterized in that: The automobile chassis (100) further comprises a fixing clamp (140), wherein a plurality of the fixing clamps (140) are evenly arranged on the automobile muffler (110) and fix the automobile muffler (110) on the automobile beam (130).

3. The temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to claim 1 is characterized in that: The heat collecting cover (320) is trumpet-shaped, and the heat collecting cover (320) half covers one end of the water pump system (400).

4. A dust suppression vehicle water pump temperature regulating device for preventing icing according to claim 1, characterized in that: The heat collecting cover (320) is provided with a plurality of branch pipes and nozzles, the branch pipes are connected to the nozzles, and each nozzle faces various locations of the water pump body (410).

5. The temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to claim 1 is characterized in that: There are two water pump brackets (420) fixedly connected to the water pump body (410).

6. The temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to claim 1 is characterized in that: The electric control system (210) further comprises a hydraulic rod (213), a switch rod (214), a hydraulic linkage rod (215) and a connecting shaft (216); one side surface of the electric control switch (211) is connected to one side surface of the hydraulic linkage rod (215); one end of the hydraulic rod (213), the switch rod (214) and the hydraulic linkage rod (215) are all provided with through holes; the connecting shaft (216) is connected to the through holes; one side surface of the switch rod (214) is connected to one side surface of the three-ventilation valve (220); the switch rod (214) is manually pressed to switch the connection between the three-ventilation valve (220) and the automobile muffler (110) and the heat-conducting pipe (310).

7. The temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to claim 1 is characterized in that: The three-ventilation valve (220) is a solenoid valve, and the electric control system (210) uses electric signals to control the opening and closing of two air outlets of the three-ventilation valve (220).

8. The temperature regulating device for a water pump of a dust suppression vehicle for preventing icing according to claim 1 is characterized in that: The electric control system (210) is controlled by buttons or remote control.

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