Energy-saving cooling system for retarder

Abstract

The utility model discloses an energy-saving cooling system for a retarder, which comprises a cooling component, a cooling component, a cooling component and an energy-saving component, wherein the retarder is arranged on one side of the cooling component; an oil inlet pipeline is arranged between the oil outlet of the plate heat exchanger and the oil inlet of the retarder, and an oil outlet pipeline is arranged between the oil outlet of the retarder and the oil inlet of the plate heat exchanger; a temperature control three-way valve and a flow control three-way valve are fixedly arranged on the oil inlet pipeline, a pipeline heater water tank is arranged at one end, close to the plate heat exchanger, of the oil outlet pipeline, and a temperature sensor is arranged on the oil outlet pipeline at one end of the retarder oil outlet. Through the mode that the cooling assembly, the plate heat exchanger, the temperature control three-way valve and the pipeline heater water tank are matched, the temperature control three-way valve can control the proportion of flowing media in an inner cavity of the plate heat exchanger and the pipeline heater water tank, and accurate control over the temperature flowing through the retarder is achieved. And the safety and the energy-saving performance of the system during use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy-saving cooling of retarders, in particular to an energy-saving cooling system for retarders. Background Art

[0002] A retarder is a car retarder that reduces the vehicle's speed through a hydraulic device. For vehicles with larger tonnage, the exhaust braking effect is limited, so it is necessary to install a hydraulic deceleration retarder on the variable speed machine to achieve a high-efficiency braking effect. However, the retarder needs to be cooled when in use.

[0003] Application No. 202120514686.1 discloses an electro-hydraulic retarder cooling system assembly for trucks, including an electro-hydraulic retarder, a control module, a temperature sensor, a one-way solenoid valve A, a one-way solenoid valve B, a cooling fan, a water tank, an air source, and a pressure relief valve. The air source is connected to the water tank, and the water tank is provided with a pressure relief valve; the water inlet of the electro-hydraulic retarder is connected to the water tank, the electro-hydraulic retarder is equipped with a temperature sensor, and the control module is connected to the electro-hydraulic retarder as the control center of the system; the water outlet end of the electro-hydraulic retarder is connected to the water tank through two water outlet pipes, and the two water outlet pipes are respectively provided with a one-way solenoid valve A and a one-way solenoid valve B, and the one-way solenoid valve A is also connected to the cooling fan. The coolant of the cooling system enters directly from the water inlet of the electro-hydraulic retarder. Although it can directly cool the retarder, when the transmission oil circulates to the retarder, the oil temperature on the retarder cannot be determined. Overheated oil temperature or overcooled oil temperature with insufficient heat dissipation may flow through the retarder, and the oil temperature of the retarder cannot be accurately controlled for cooling. In addition, the early warning performance of the retarder needs to be improved. The uncontrollable oil temperature makes the energy saving and safety of the retarder still insufficient. Utility Model Content

[0004] The utility model aims to provide an energy-saving cooling system for a retarder to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving cooling system for a retarder, comprising: a cooling assembly, a retarder being arranged on one side of the cooling assembly;

[0006] A plate heat exchanger is provided on one side of the cooling assembly close to the retarder, an oil inlet pipeline is provided between the oil outlet of the plate heat exchanger and the oil inlet of the retarder, and an oil outlet pipeline is provided between the oil outlet of the retarder and the oil inlet of the plate heat exchanger;

[0007] A temperature control three-way valve and a flow control three-way valve are fixedly arranged on the oil inlet pipeline, a pipeline heater water tank is arranged at one end of the oil outlet pipeline close to the plate heat exchanger, the oil outlet end of the pipeline heater water tank and the oil outlet end of the plate heat exchanger are both connected to the liquid inlet end of the temperature control three-way valve, and a temperature sensor is arranged on the oil outlet pipeline at one end of the retarder oil outlet.

[0008] Preferably, a flow sensor and a pressure sensor are fixedly installed on the oil inlet pipeline at one end of the oil inlet of the retarder, and the pressure sensor is fixedly installed at one end close to the oil inlet of the retarder.

[0009] Preferably, the flow sensor is installed and fixed near the liquid outlet end of the flow control three-way valve, and the flow sensor is arranged between the pressure sensor and the flow control three-way valve.

[0010] Preferably, a circulation pump is provided on the oil outlet pipeline, and the circulation pump is arranged at one end of the temperature sensor close to the water tank of the pipeline heater.

[0011] Preferably, the oil outlet of the circulation pump supplies both the oil inlet of the plate heat exchanger and the oil inlet of the water tank of the pipeline heater.

[0012] Preferably, the cooling assembly comprises:

[0013] A plurality of cooling water pipes, wherein the cooling water pipes are arranged on a side of the plate heat exchanger away from the retarder, and the plurality of cooling water pipes are respectively fixedly connected to a water inlet and a water outlet of the plate heat exchanger;

[0014] A cooling water Y-type filter, which is arranged on a cooling water pipe near the water inlet end of the plate heat exchanger through a solenoid valve;

[0015] A flow switch is arranged on a cooling water pipe near the water outlet of the plate heat exchanger through a solenoid valve.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model cooperates with a cooling component, a plate heat exchanger, a temperature control three-way valve and a pipe heater water tank, and utilizes an oil inlet pipeline and an oil outlet pipeline so that the temperature control three-way valve can control the ratio of the medium flowing through the inner cavity of the plate heat exchanger and the pipe heater water tank, thereby realizing accurate control of the temperature flowing through the retarder. At the same time, the temperature sensor can carry out a safety early warning of the oil temperature on the retarder, thereby improving the safety and energy saving of the system when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall layout of the utility model system.

[0019] Figure 2This is the cooling water circuit diagram of the utility model.

[0020] Figure 3 This is the oil circulation diagram of the variable box of the utility model.

[0021] In the figure: 1. Cooling assembly; 11. Cooling water Y-type filter; 12. Flow switch; 2. Plate heat exchanger; 3. Temperature control three-way valve; 4. Flow control three-way valve; 5. Flow sensor; 6. Pressure sensor; 7. Retarder; 8. Pipe heater water tank; 9. Circulation pump; 10. Temperature sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-3 A retarder energy-saving cooling system is shown, comprising:

[0024] A cooling assembly 1, comprising: a plurality of cooling water pipes, a cooling water Y-type filter 11 and a flow switch 12, wherein the cooling water pipe is arranged on a side of the plate heat exchanger 2 away from the retarder 7, and the plurality of cooling water pipes are respectively fixedly connected to the water inlet and the water outlet of the plate heat exchanger 2, wherein one end of one cooling water pipe is provided with an A water inlet, and another end of the other cooling water pipe is provided with a B water outlet, the cooling water Y-type filter 11 is arranged on the cooling water pipe near the water inlet end of the plate heat exchanger 2 through an electromagnetic valve, and the flow switch 12 is arranged on the cooling water pipe near the water outlet end of the plate heat exchanger 2 through an electromagnetic valve, and the external cooling water enters the cooling water Y-type filter 11 through the A water inlet for filtration and then flows into the inner cavity of the plate heat exchanger 2 for heat conduction, so that the heat source on the plate heat exchanger 2 is transferred to the water in the cooling water pipe and the water outlet efficiency on the plate heat exchanger 2 is controlled through the flow switch 12, so that the heat conduction efficiency on the plate heat exchanger 2 is controlled;

[0025] Furthermore, a retarder 7 is provided on one side of the cooling component 1, and a plate heat exchanger 2 is provided on one side of the cooling component 1 close to the retarder 7. Water flows through one side of the plate heat exchanger 2, and oil flows through the other side. The two channels prevent oil and water from communicating with each other, and the material of the plate heat exchanger 2 has good heat transfer efficiency. When the high-temperature oil flows to the plate heat exchanger 2, the heat is transferred to the plate heat exchanger 2 and is transferred out by the cooling water flowing on the plate heat exchanger 2, so as to facilitate rapid cooling of the hot oil. An oil inlet pipeline is provided between the oil outlet of the plate heat exchanger 2 and the oil inlet of the retarder 7, and an oil outlet pipeline is provided between the oil outlet of the retarder 7 and the oil inlet of the plate heat exchanger 2, so that the gearbox oil can flow between the plate heat exchanger 2 and the retarder 7;

[0026] Furthermore, a temperature control three-way valve 3 and a flow control three-way valve 4 are fixedly arranged on the oil inlet pipeline, and a pipeline heater water tank 8 is arranged at one end of the oil outlet pipeline close to the plate heat exchanger 2, so that part of the gearbox oil flowing out of the retarder 7 can enter the inner cavity of the plate heat exchanger 2, and the other part can enter the inner cavity of the pipeline heater water tank 8, so that the pipeline heater water tank 8 can heat the oil, and the oil outlet end of the pipeline heater water tank 8 and the oil outlet end of the plate heat exchanger 2 are both connected to the liquid inlet end of the temperature control three-way valve 3. Through the temperature control three-way valve 3, it is convenient to control and process the cooling oil flowing through the inner cavity of the plate heat exchanger 2 and the hot oil flowing through the inner cavity of the pipeline heater water tank 8 at the same time;

[0027] Furthermore, a temperature sensor 10 is provided on the oil outlet pipeline at one end of the oil outlet of the retarder 7. The temperature sensor 10 is electrically connected to a PLC controller. The precise control of the temperature is fed back to the PLC controller through the temperature sensor 10. The PLC controller controls the temperature control three-way valve 3 through the PIC control output, thereby realizing the temperature control of the oil by the proportion of the medium flowing through the plate heat exchanger 2 and the pipeline heater water tank 8;

[0028] Furthermore, a flow sensor 5 and a pressure sensor 6 are installed and fixed on the oil inlet pipeline at one end of the oil inlet of the retarder 7. The pressure sensor 6 is installed and fixed at one end close to the oil inlet of the retarder 7, and the flow sensor 5 is installed and fixed at the liquid outlet end close to the flow control three-way valve 4. The flow sensor 5 is arranged between the pressure sensor 6 and the flow control three-way valve 4, so that the flow sensor 5 and the pressure sensor 6 can provide flow warning and pressure high and low warning, thereby improving the warning performance of the system;

[0029] Furthermore, a circulation pump 9 is arranged on the oil outlet pipeline. The circulation pump 9 is arranged at one end of the temperature sensor 10 close to the pipe heater water tank 8. The oil outlet end of the circulation pump 9 supplies the oil inlet end of the plate heat exchanger 2 and the oil inlet end of the pipe heater water tank 8 at the same time, so that the gearbox oil circulates through the plate heat exchanger 2 and the pipe heater water tank 8 through the circulation pump 9 and reaches the precise temperature through the temperature control three-way valve 3 before flowing to the retarder 7 for deceleration, thereby improving the energy saving and stability of the system.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A retarder energy-saving cooling system, comprising: A cooling assembly (1), wherein a retarder (7) is provided on one side of the cooling assembly (1); The invention is characterized in that: a plate heat exchanger (2) is arranged on one side of the cooling assembly (1) close to the retarder (7); an oil inlet pipeline is arranged between the oil outlet of the plate heat exchanger (2) and the oil inlet of the retarder (7); and an oil outlet pipeline is arranged between the oil outlet of the retarder (7) and the oil inlet of the plate heat exchanger (2); A temperature control three-way valve (3) and a flow control three-way valve (4) are fixedly arranged on the oil inlet pipeline; a pipeline heater water tank (8) is arranged at one end of the oil outlet pipeline close to the plate heat exchanger (2); the oil outlet end of the pipeline heater water tank (8) and the oil outlet end of the plate heat exchanger (2) are both connected to the liquid inlet end of the temperature control three-way valve (3); and a temperature sensor (10) is arranged on the oil outlet pipeline at one end of the oil outlet of the retarder (7).

2. The energy-saving cooling system for a retarder according to claim 1, characterized in that: A flow sensor (5) and a pressure sensor (6) are fixedly installed on the oil inlet pipeline at one end of the oil inlet of the retarder (7), and the pressure sensor (6) is fixedly installed at one end close to the oil inlet of the retarder (7).

3. The energy-saving cooling system for a retarder according to claim 2, characterized in that: The flow sensor (5) is installed and fixed near the liquid outlet end of the flow control three-way valve (4), and the flow sensor (5) is arranged between the pressure sensor (6) and the flow control three-way valve (4).

4. The energy-saving cooling system for a retarder according to claim 2, characterized in that: The oil outlet pipeline is provided with a circulation pump (9), and the circulation pump (9) is arranged at one end of the temperature sensor (10) close to the pipeline heater water tank (8).

5. The energy-saving cooling system for a retarder according to claim 4, characterized in that: The oil outlet of the circulation pump (9) simultaneously supplies the oil inlet of the plate heat exchanger (2) and the oil inlet of the pipeline heater water tank (8).

6. The energy-saving cooling system for a retarder according to claim 2, characterized in that: The cooling assembly (1) comprises: A plurality of cooling water pipes, the cooling water pipes being arranged on a side of the plate heat exchanger (2) away from the retarder (7), and the plurality of cooling water pipes being fixedly connected to a water inlet and a water outlet of the plate heat exchanger (2) respectively; A cooling water Y-type filter (11), wherein the cooling water Y-type filter (11) is arranged on a cooling water pipe near a water inlet end of the plate heat exchanger (2) via a solenoid valve; A flow switch (12), wherein the flow switch (12) is arranged on a cooling water pipe near a water outlet end of the plate heat exchanger (2) via a solenoid valve.

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