CN211258798U - Special water-cooling intercooler constant temperature equipment of diesel engine - Google Patents
Special water-cooling intercooler constant temperature equipment of diesel engine Download PDFInfo
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- CN211258798U CN211258798U CN201922001057.4U CN201922001057U CN211258798U CN 211258798 U CN211258798 U CN 211258798U CN 201922001057 U CN201922001057 U CN 201922001057U CN 211258798 U CN211258798 U CN 211258798U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model belongs to the technical field of the car, specific special water-cooling intercooler constant temperature equipment of diesel engine that says so. The device comprises a flow control valve, a cooling water filter, a one-way valve, a circulating water pump, an electric proportional control valve, a pressure sensor I, a heat exchanger, a temperature sensor, a pressure sensor II, an air pressure regulating valve, a temperature controller and a pressure controller; the utility model relates to a special water-cooled intercooler thermostat for a diesel engine, which controls the air temperature and pressure after intercooling of the supercharged engine in real time according to the input set value of the temperature and pressure of the air after supercharging of the engine; besides temperature control, the pressure difference between the inlet and the outlet of the supercharger can be controlled and adjusted through the air pressure adjusting valve, the air inlet condition of the real working condition of the engine can be reflected, and meanwhile, the flow characteristic of the device is changed through the flow control valve, so that the temperature control precision is further improved.
Description
Technical Field
The utility model belongs to the technical field of the car, specific special water-cooling intercooler constant temperature equipment of diesel engine that says so.
Background
Generally speaking, in the process of an engine bench test, it is difficult to directly adopt the automotive supercharged intercooler for controlling the air inlet temperature of the engine, because the automotive supercharged intercooler is air-cooled on a vehicle, and devices for simulating the speed, the wind speed and the temperature are arranged in a limited space of an engine laboratory, which is neither practical nor difficult to realize. At present, intercooler heat exchangers with water cooling (replacing automobile air-cooled intercoolers) are widely adopted, so that the temperature and pressure of air after the engine is supercharged are controlled within a set range, and performance parameters such as the rotating speed, torque, oil consumption and emission of the engine, evaluation performance and reliability and the like are measured.
The thermostat for water-cooled intercooler is specially used in controlling the temperature of the inlet air of supercharged engine after supercharging and regulating the pressure difference between the inlet and the outlet of supercharger. The prior art can only control the temperature, does not have a device for adjusting the pressure difference between an inlet and an outlet of a supercharger, and cannot judge the air inlet condition of an engine.
Disclosure of Invention
The utility model provides a special water-cooling intercooler constant temperature equipment of diesel engine of air temperature and pressure after the cold according to the temperature of the engine pressure boost back air of input and pressure setting value real-time control supercharged engine, solved the above-mentioned not enough that current water-cooling intercooler constant temperature equipment exists.
The technical scheme of the utility model is explained as follows with the attached drawings:
a thermostat of a water-cooled intercooler special for a diesel engine comprises a flow control valve 1, a cooling water filter 2, a one-way valve 3, a circulating water pump 4, an electric proportional control valve 5, a pressure sensor I6, a heat exchanger 7, a temperature sensor 8, a pressure sensor II 9, an air pressure regulating valve 10, a temperature controller 11 and a pressure controller 12; the cooling water inlet A is connected with one end of a flow control valve 1 through a pipeline, and the other end of the flow control valve 1 is connected with one end of a cooling water filter 2; the other end of the cooling water filter 2 is connected with one end of a circulating water pump 4; the other end of the circulating water pump 4 is connected with one end of a heat exchanger 7; the other end of the heat exchanger 7 is connected with one end of the electric proportional control valve 5 and one end of the one-way valve 3; one end of the one-way valve 3 is connected with a circulating water pump 4; the other end of the electric proportional control valve 5 is connected with a water outlet B; the air inlet is connected with the air inlet of the heat exchanger 7 through an air inlet pipeline; a pressure sensor I6 is arranged on the air inlet pipeline; the gas outlet of the heat exchanger 7 is connected with one end of an air pressure regulating valve 10 through an air outlet pipeline; the other end of the air pressure adjusting valve 10 is connected with an air outlet; a temperature sensor 8 and a pressure sensor II 9 are arranged on the air outlet pipeline; the electric proportional control valve 5 and the temperature sensor 8 are connected with a temperature controller 11; the pressure sensor I6, the pressure sensor II 9 and the air pressure regulating valve 10 are connected with a pressure controller 12.
The heat exchanger 7 uses a copper pipe and plate integral expansion-connection type low-flow-resistance heat exchange element, and sealing gaskets which can not crack and leak air at the highest pressurized air temperature of 280 ℃ are arranged at the air inlet and the air outlet; the heat exchanger 7 is in a water-full state under any operating condition.
And the height of the water outlet B is higher than that of the water-cooled intercooler constant temperature device special for the diesel engine.
The utility model has the advantages that:
1) the heat exchanger in the device uses a copper pipe and plate integral expansion-connection type low-flow-resistance heat exchange element, so that the maximum flow resistance of gas is less than 3kPa, and various machine types can be used; meanwhile, a special crater technology is used for ensuring the pressure resistance of 8bar, and the purposes of reducing the size and increasing the heat exchange efficiency are achieved.
2) The heat exchanger in the device is sealed by a special cushion at the connection position of the high-temperature gas inlet and the high-temperature gas outlet, so that the heat exchanger can not crack and leak gas at the highest pressurized air temperature of 280 ℃.
3) This device structurally guarantees that delivery port B is higher than the system, and heat exchanger all is in full water state under any use operating mode, avoids causing copper pipe and board fracture because the cold and hot exchange temperature difference is too big.
4) The device is structurally provided with an internal circulation water pump, so that the heat exchange efficiency and the control precision are improved.
5) The device is provided with a manual or electric air throttle valve and is used for simulating the pressure difference of an intercooler for a vehicle.
6) The device is provided with a flow control valve at a cooling water inlet A, and the flow control valve is used for being matched with an electric proportional control valve to improve the control precision.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a flow control valve; 2. a cooling water filter; 3. a one-way valve; 4. a water circulating pump; 5. an electric proportional control valve; 6. a pressure sensor I; 7. a heat exchanger; 8. a temperature sensor; 9. a pressure sensor II; 10. an air pressure regulating valve; 11. a temperature controller; 12. a pressure controller.
Detailed Description
Referring to fig. 1, the thermostat device for the water-cooled intercooler special for the diesel engine is characterized by comprising a flow control valve 1, a cooling water filter 2, a one-way valve 3, a circulating water pump 4, an electric proportional control valve 5, a pressure sensor I6, a heat exchanger 7, a temperature sensor 8, a pressure sensor II 9, an air pressure regulating valve 10, a temperature controller 11 and a pressure controller 12; the cooling water inlet A is connected with one end of a flow control valve 1 through a pipeline, and the other end of the flow control valve 1 is connected with one end of a cooling water filter 2; the other end of the cooling water filter 2 is connected with one end of a circulating water pump 4; the other end of the circulating water pump 4 is connected with one end of a heat exchanger 7; the other end of the heat exchanger 7 is connected with one end of the electric proportional control valve 5 and one end of the one-way valve 3; one end of the one-way valve 3 is connected with a circulating water pump 4; the other end of the electric proportional control valve 5 is connected with a water outlet B; the air inlet is connected with the air inlet of the heat exchanger 7 through an air inlet pipeline; a pressure sensor I6 is arranged on the air inlet pipeline; the gas outlet of the heat exchanger 7 is connected with one end of an air pressure regulating valve 10 through an air outlet pipeline; the other end of the air pressure adjusting valve 10 is connected with an air outlet; a temperature sensor 8 and a pressure sensor II 9 are arranged on the air outlet pipeline; the electric proportional control valve 5 and the temperature sensor 8 are connected with a temperature controller 11; the pressure sensor I6, the pressure sensor II 9 and the air pressure regulating valve 10 are connected with a pressure controller 12.
The heat exchanger 7 adopts a copper pipe and plate integral expansion-connection type low-flow-resistance heat exchange element, so that the maximum flow resistance of gas is less than 3kPa, and various machine types can be used; meanwhile, a special crater technology is used for ensuring the pressure resistance of 8bar, and the purposes of reducing the size and increasing the heat exchange efficiency are achieved.
The heat exchanger 7 is provided with sealing gaskets which can not crack and leak at the highest pressurized air temperature of 280 ℃ at the gas inlet and outlet;
the height of the water outlet B is higher than that of a water-cooled intercooler constant temperature device special for the diesel engine, the heat exchanger 7 is in a full water state under any use working condition, and cracking of a copper pipe and a plate due to overlarge temperature difference of cold and heat exchange is avoided.
The temperature controller 11 is a temperature controller with a PID control function; the output quantity of the controller is calculated by the PID controller according to the PID algorithm and the difference value between the set value (the control temperature set value) and the actual value (the measured value of the temperature sensor) of the controlled object, the change of the controlled object is influenced by the control executing mechanism, namely, the opening water flow of the electric proportional control valve 5 is controlled, so that the water temperature is directly controlled, the outlet temperature is indirectly controlled through the heat exchanger, and the air pressure regulating valve 10 arranged on the air outlet pipeline can be used for regulating the outlet resistance of the air of the heat exchanger 7 and simulating the pressure of the intercooler air of the supercharged engine for the vehicle under the actual working condition.
Before cooling water enters the device through the port A, the flow characteristic is changed through the flow control valve 1, and meanwhile, the flow control valve is matched with the electric proportional control valve 5 so that the control precision is improved.
The pressure difference between the inlet and the outlet of the supercharger of the device is adjusted to be electric adjustment, and the pressure difference is adjusted by an air pressure adjusting valve 10, a pressure controller 12, a pressure sensor I6 and a pressure sensor II 9. The pressure sensor I6 and the pressure sensor II 9 which are arranged on the air inlet pipeline detect the pressure difference in real time and transmit the pressure difference to the pressure controller 12, and the pressure controller 12 adjusts the opening of the air pressure adjusting valve 10 in real time according to a set target, so that the pressure difference at the inlet and the outlet of the intercooler constant temperature control device of the supercharged engine can be controlled in real time to meet the test requirements.
The electric proportional control valve 5 controls the proportion of the return water, and further adjusts the temperature.
PID is a proportional-integral-derivative control algorithm for closed-loop control systems. The PID control is a negative feedback closed-loop control, and can suppress disturbance caused by various factors in the closed loop of the system, so that the feedback follows a given change. The PID control can overcome the influence on the control object due to the change in the environmental factor.
Claims (3)
1. A thermostat of a water-cooled intercooler special for a diesel engine is characterized by comprising a flow control valve (1), a cooling water filter (2), a one-way valve (3), a circulating water pump (4), an electric proportional control valve (5), a pressure sensor I (6), a heat exchanger (7), a temperature sensor (8), a pressure sensor II (9), an air pressure regulating valve (10), a temperature controller (11) and a pressure controller (12); the cooling water inlet A is connected with one end of a flow control valve (1) through a pipeline, and the other end of the flow control valve (1) is connected with one end of a cooling water filter (2); the other end of the cooling water filter (2) is connected with one end of a circulating water pump (4); the other end of the circulating water pump (4) is connected with one end of a heat exchanger (7); the other end of the heat exchanger (7) is connected with one end of the electric proportional control valve (5) and one end of the one-way valve (3); one end of the one-way valve (3) is connected with the circulating water pump (4); the other end of the electric proportional control valve (5) is connected with a water outlet B; the air inlet is connected with the air inlet of the heat exchanger (7) through an air inlet pipeline; a pressure sensor I (6) is arranged on the air inlet pipeline; a gas outlet of the heat exchanger (7) is connected with one end of an air pressure regulating valve (10) through a gas outlet pipeline; the other end of the air pressure regulating valve (10) is connected with an air outlet; a temperature sensor (8) and a pressure sensor II (9) are arranged on the air outlet pipeline; the electric proportional control valve (5) and the temperature sensor (8) are connected with a temperature controller (11); and the pressure sensor I (6), the pressure sensor II (9) and the air pressure regulating valve (10) are connected with a pressure controller (12).
2. The thermostat device of the water-cooled intercooler special for the diesel engine is characterized in that the heat exchanger (7) adopts a copper pipe and plate integrated expansion-connection type low-flow-resistance heat exchange element, and gaskets which do not crack and leak air at the highest supercharged air temperature of 280 ℃ are arranged at a gas inlet and a gas outlet; the heat exchanger (7) is in a full water state under any use working condition.
3. The thermostat device of the water-cooled intercooler special for the diesel engine as claimed in claim 1, wherein the height of the water outlet B is higher than that of the thermostat device of the water-cooled intercooler special for the diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001057.4U CN211258798U (en) | 2019-11-19 | 2019-11-19 | Special water-cooling intercooler constant temperature equipment of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001057.4U CN211258798U (en) | 2019-11-19 | 2019-11-19 | Special water-cooling intercooler constant temperature equipment of diesel engine |
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| Publication Number | Publication Date |
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| CN211258798U true CN211258798U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922001057.4U Active CN211258798U (en) | 2019-11-19 | 2019-11-19 | Special water-cooling intercooler constant temperature equipment of diesel engine |
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| CN (1) | CN211258798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296554A (en) * | 2021-05-26 | 2021-08-24 | 冰山松洋生物科技(大连)有限公司 | Pressure balance system for sterilizer |
| CN114294094B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Dynamic air compensation system with bypass heat exchange function for engine |
-
2019
- 2019-11-19 CN CN201922001057.4U patent/CN211258798U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296554A (en) * | 2021-05-26 | 2021-08-24 | 冰山松洋生物科技(大连)有限公司 | Pressure balance system for sterilizer |
| CN113296554B (en) * | 2021-05-26 | 2023-11-07 | 冰山松洋生物科技(大连)有限公司 | Pressure balance system for sterilizer |
| CN114294094B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Dynamic air compensation system with bypass heat exchange function for engine |
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