CN217084192U - Engine pedestal intercooler temperature control system - Google Patents
Engine pedestal intercooler temperature control system Download PDFInfo
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- CN217084192U CN217084192U CN202220592426.0U CN202220592426U CN217084192U CN 217084192 U CN217084192 U CN 217084192U CN 202220592426 U CN202220592426 U CN 202220592426U CN 217084192 U CN217084192 U CN 217084192U
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Abstract
The utility model provides an engine rack intercooler temperature control system, including rack intercooler, heater, water pump, first ball valve, second ball valve, first three-way proportional control valve and second three-way proportional control valve, the air inlet and the gas outlet of rack intercooler are connected to the engine respectively, the water inlet and the water outlet of rack intercooler are connected with the water cooling system through inlet tube and outlet pipe respectively and form the cooling water circulation loop, set gradually water pump, first three-way proportional control valve and first ball valve along the cooling water flow direction on the inlet tube; the port P of the first three-way proportional regulating valve is connected to the water outlet pipe through a first overflow pipe; and a second ball valve, a heater and a second three-way proportional control valve are sequentially arranged on the water outlet pipe along the flowing direction of the cooling water, and a P port of the second three-way proportional control valve is connected to the water inlet pipe through a second overflow pipe. Compared with the prior art, the utility model has simpler structure and reduces the overall occupied space of the equipment; only one heat exchange is needed, and the heat exchange loss is reduced.
Description
Technical Field
The utility model relates to an engine test technical field especially relates to an engine rack intercooler temperature control system.
Background
When carrying out engine bench test, need be at laboratory simulation intercooler temperature control device, the utility model discloses an engine bench test intercooler temperature control and cooling water temperature control system is disclosed to the utility model patent of grant bulletin number CN 205158162U, this system passes through to form the one-level heat transfer between plate water-cooled heat exchanger and the engine, form the second grade heat transfer between plate water-cooled heat exchanger and circulating water cooling tower, realize engine inlet air temperature's control through twice heat transfer, because the cooling medium circulation route is longer, need guarantee cooling medium's circulating power through the booster water pump, this system has following defect:
(1) the water-cooled heat exchanger and the intercooler exchange heat for the second time, so that the heat exchange loss is increased;
(2) the water-cooled heat exchanger and the intercooler exchange heat for the second time, and a cooling medium needs to be separately prepared in the middle;
(3) more designed components and larger occupied space of equipment;
(4) the bench intercooler does not have protect function, and the damage can appear in the intercooler when in actual use and lead to water to get into the gas circuit, leads to the engine to damage in getting into the engine.
Therefore, it is urgently needed to provide an engine pedestal intercooler temperature control system with a simple structure and high safety.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: in order to overcome the not enough among the prior art, the utility model provides an engine platform intercooler temperature control system.
The utility model provides a technical scheme that its technical problem will adopt is: a temperature control system of an engine bench intercooler comprises a bench intercooler, a heater, a water pump, a first ball valve, a second ball valve, a first three-way proportional control valve and a second three-way proportional control valve, wherein an air inlet and an air outlet of the bench intercooler are respectively connected to an engine through air pipes, a water inlet and a water outlet of the bench intercooler are respectively connected with a water cooling system through a water inlet pipe and a water outlet pipe to form a cooling water circulation loop, the water pump, the first three-way proportional control valve and the first ball valve are sequentially arranged on the water inlet pipe along the flowing direction of cooling water, an opening A and an opening B of the first three-way proportional control valve are respectively connected with the water inlet pipe, and an opening P of the first three-way proportional control valve is connected to the water outlet pipe through a first overflow pipe; set gradually second ball valve, heater and second tee bend proportional control valve along the coolant flow direction on the outlet pipe, and the second ball valve sets up on the outlet pipe between rack intercooler and first overflow pipe, the A mouth and the B mouth of second tee bend proportional control valve respectively with go out water piping connection, the P mouth of second tee bend proportional control valve is connected to the inlet tube through the second overflow pipe, the heater sets up on the outlet pipe between the B mouth of first overflow pipe and second tee bend proportional control valve. And the flow of cooling water entering the intercooler is controlled through the first three-way proportional control valve. And the constant temperature control is realized by controlling the amount of cooling water entering the internal circulation through a second three-way proportional control valve. Through the flowmeter, the heat exchange efficiency can be calculated. The internal circulation cooling water can be heated by the heater: firstly, the engine is assisted in quickly raising the temperature of the air inlet of the engine (namely the temperature of the air outlet of a charge air cooler) under the condition that a low-load supercharger is not involved, for example, the air inlet is heated by water to assist in raising the temperature when the actual temperature is lower than the set temperature, or high-temperature knocking is simulated.
And the flow meter is arranged on a water outlet pipe between the second ball valve and the first overflow pipe. The flowmeter mainly measures the cooling water flow of the intercooler and calculates the heat exchange efficiency and the heat dissipation capacity.
Further, the water heater further comprises a temperature and pressure sensor, and the temperature and pressure sensor is arranged on a water outlet pipe between the heater and the first overflow pipe. The temperature and pressure sensor is used for monitoring the temperature and the pressure of a medium in the water outlet pipe, providing a reference temperature for the second three-way proportional control valve during working, and the pressure is used as a protective measure to prevent the system heater from working under the condition that no cooling water or the cooling water is not circulated.
Further, still include the liquid level alarm, the liquid level alarm sets up the bottom at the rack intercooler. The liquid level alarm monitors whether liquid exists in an intercooler gas passage, monitors whether water leakage of the intercooler prevents water from entering the engine, and monitors whether condensate liquid of engine mixed gas is too much after the engine mixed gas is cooled by the intercooler to protect the engine.
And the exhaust valve is connected to a water inlet pipe between the second overflow pipe and the water pump through a pipeline. According to the physical characteristics of the exhaust valve, air in the system can be automatically exhausted. The measuring accuracy of the flowmeter can be ensured, and the water pump is protected from cavitation.
And one end of the auxiliary water pipe is communicated with the water inlet pipe, the other end of the auxiliary water pipe is communicated with the water outlet pipe, and the auxiliary water pipe is connected in parallel to the side of the B port, close to the second three-way proportional control valve, of the two ends of the second overflow pipe.
The utility model has the advantages that: the utility model provides a pair of engine rack intercooler temperature control system increases heat exchange efficiency, reduces the structure and constitutes, and intercooler water cooling flow is adjustable satisfies the demand of constant temperature, constant current in the diesel engine development.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is the structural schematic diagram of the intercooler temperature control system of the engine pedestal of the present invention.
In the figure: 1. the system comprises an engine, 2, a rack intercooler, 3, a first ball valve, 4, a first three-way proportional control valve, 5, a heater, 6, an exhaust valve, 7, a second three-way proportional control valve, 8, a water pump, 9, a flowmeter, 10, a temperature and pressure sensor, 11, a second ball valve, 12, a liquid level alarm, 13, a cooling water system, 14, a water inlet pipe, 15, a water outlet pipe, 16, a first overflow pipe, 17, a second overflow pipe, 18, an air pipe, 19 and an auxiliary water pipe.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1, the utility model discloses an engine rack intercooler temperature control system, including rack intercooler 2, heater 5, water pump 8, first ball valve 3, second ball valve 11, first tee bend proportional control valve 4, second tee bend proportional control valve 7, flowmeter 9, temperature pressure sensor 10, liquid level alarm 12 and discharge valve 6, wherein, the air inlet and the gas outlet of rack intercooler 2 are connected to engine 1 respectively through trachea 18, the water inlet and the delivery port of rack intercooler 2 are connected with water cooling system through inlet tube 14 and outlet pipe 15 respectively and form the cooling water circulation loop, wherein, water cooling system mainly provides coolant for whole test system, can directly utilize the refrigerated water or the circulating water of laboratory basic facility; the water pump 8, the first three-way proportional control valve 4 and the first ball valve 3 are sequentially arranged on the water inlet pipe 14 along the flowing direction of cooling water; the port A and the port B of the first three-way proportional control valve 4 are respectively connected with a water inlet pipe 14, and the port P of the first three-way proportional control valve 4 is connected to a water outlet pipe 15 through a first overflow pipe 16; a second ball valve 11, a heater 5 and a second three-way proportional control valve 7 are sequentially arranged on the water outlet pipe 15 along the flowing direction of cooling water, the second ball valve 11 is arranged on the water outlet pipe 15 between the rack intercooler 2 and the first overflow pipe 16, an A port and a B port of the second three-way proportional control valve 7 are respectively connected with the water outlet pipe 15, and a P port of the second three-way proportional control valve 7 is connected to the water inlet pipe 14 through a second overflow pipe 17; an auxiliary water pipe 19 is also arranged between the water inlet pipe 14 and the water outlet pipe 15, one end of the auxiliary water pipe 19 is communicated with the water inlet pipe 14, the other end of the auxiliary water pipe 19 is communicated with the water outlet pipe 15, and the auxiliary water pipe is connected in parallel with the B port side of the two ends of the second overflow pipe 17 close to the second three-way proportional regulating valve 7; the heater 5 is arranged on the water outlet pipe 15 between the first overflow pipe 16 and the port B of the second three-way proportional control valve 7. The flow meter 9 is arranged on the outlet pipe 15 between the second ball valve 11 and the first overflow pipe 16. The temperature and pressure sensor 10 is arranged on the water outlet pipe 15 between the heater 5 and the first overflow pipe 16. The exhaust valve 6 is connected to the water inlet pipe 14 between the second overflow pipe 17 and the water pump 8 through a pipeline. The liquid level alarm 12 is arranged at the bottom of the rack intercooler 2 and used for monitoring whether liquid exists in an intercooler air passage or not and protecting the engine 1.
The working principle is as follows:
when testing, install engine 1 on the rack fast-assembling dolly earlier, be connected rack intercooler 2 with engine 1 through trachea 18, be connected with cooling water system 13 through inlet tube 14 and outlet pipe 15, start temperature control system and test the inlet air temperature cooling after engine 1 pressure boost.
At this time, the first ball valve 3 and the second ball valve 11 are in an open state, the port a and the port B of the first three-way proportional control valve 4 are communicated with the water inlet pipe 14, and the port a and the port B of the second three-way proportional control valve 7 are communicated with the water outlet pipe 15.
When the inlet air temperature of the engine 1 is lower than the set temperature, the heater 5 works to heat the cooling water, and the inlet air temperature is heated through the bench intercooler 2. When the intake air temperature of the engine 1 is higher than the set temperature, the heater 5 stops operating.
When the engine 1 is at a rated power point, the port P of the first three-way proportional control valve 4 is opened, and the cooling water is directly introduced into the water outlet pipe 15 through the first overflow pipe 16, in the embodiment, the port a-P is normally open and the port B is normally closed when the first three-way proportional control valve 4 does not work. According to the input voltage (0-10V), the valve core position is changed to open the port B to cause shunting, the flow of the port A is equal to the flow of the port B plus the port P, and therefore the air inlet temperature of the engine 1 is adjusted by the first three-way proportional control valve 4.
When the measured value of the temperature sensor 10 in the system deviates from the set value, the second three-way proportional control valve 7 adjusts the switching value of the port B, and controls the water return amount of the whole system to adjust the temperature.
The working characteristics of the three-way proportional valve are as follows: the optional port A-P is normally open, and the port B adjusts the opening according to the proportion to realize flow distribution. The opening degree of the port B is related to the voltage input by the three-way proportional valve, generally 0-10V (or 4-20mA and the like) corresponds to the opening degree of the valve core of 0-100, in the embodiment, the internal circulation is formed by the rack intercooler 2, the first ball valve 3, the first three-way proportional control valve 4, the heater 5, the water pump 8, the flowmeter 9, the temperature and pressure sensor 10, the second ball valve 11, the water inlet pipe 14, the water outlet pipe 15, the first overflow pipe 16 and the auxiliary water pipe 19, and the water pump 8 runs in the internal circulation all the time. When the second three-way proportional control valve 7 does not work, cooling water supplied by the cooling water system 13 enters from the port P of the second three-way proportional control valve 7 and returns to the cooling water system 13 from the port A, and meanwhile, the cooling water in the internal circulation returns to the water inlet pipe 14 from the water outlet pipe 15 through the auxiliary water pipe 19. When the second three-way proportional control valve 7 works, the opening degree of the port B is changed according to the input voltage, and the amount of cooling water entering the internal circulation is adjusted.
Depending on the physical characteristics of the exhaust valve 6, air is automatically removed when air is present in the cooling system.
Compared with the prior art, the engine rack intercooler temperature control system has simpler structure and reduces the overall occupied space of the equipment; only one heat exchange is needed, and the heat exchange loss is reduced.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an engine rack intercooler temperature control system which characterized in that: the water cooling system comprises a rack intercooler, a heater, a water pump, a first ball valve, a second ball valve, a first three-way proportional control valve and a second three-way proportional control valve, wherein an air inlet and an air outlet of the rack intercooler are respectively connected to an engine, a water inlet and a water outlet of the rack intercooler are respectively connected with a water cooling system through a water inlet pipe and a water outlet pipe to form a cooling water circulation loop, and the water pump, the first three-way proportional control valve and the first ball valve are sequentially arranged on the water inlet pipe along the flowing direction of cooling water; just the A mouth and the B mouth of first tee bend proportional control valve respectively with advance water piping connection, the P mouth of first tee bend proportional control valve is connected to the outlet pipe through first overflow pipe, set gradually second ball valve, heater and second tee bend proportional control valve along the coolant flow direction on the outlet pipe, and the second ball valve sets up on the outlet pipe between rack intercooler and first overflow pipe, the A mouth and the B mouth of second tee bend proportional control valve respectively with go out water piping connection, the P mouth of second tee bend proportional control valve is connected to the inlet tube through the second overflow pipe, the heater sets up on the outlet pipe between the B mouth of first overflow pipe and second tee bend proportional control valve.
2. The engine mount intercooler temperature control system of claim 1, wherein: the water outlet pipe is arranged between the first overflow pipe and the second ball valve.
3. The engine mount intercooler temperature control system of claim 1, wherein: the temperature and pressure sensor is arranged on a water outlet pipe between the heater and the first overflow pipe.
4. The engine mount intercooler temperature control system of claim 1, wherein: still include the liquid level alarm, the liquid level alarm sets up the bottom at the rack intercooler.
5. The engine mount intercooler temperature control system of claim 1, wherein: still include the discharge valve, discharge valve passes through the pipe connection on the inlet tube between second overflow pipe and water pump.
6. The engine mount intercooler temperature control system of claim 1, wherein: still include supplementary water pipe, supplementary water pipe one end and inlet tube intercommunication, the other end and outlet pipe intercommunication, and parallelly connected in the B mouth side that is close to second tee bend ratio control valve at second overflow pipe both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220592426.0U CN217084192U (en) | 2022-03-17 | 2022-03-17 | Engine pedestal intercooler temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220592426.0U CN217084192U (en) | 2022-03-17 | 2022-03-17 | Engine pedestal intercooler temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217084192U true CN217084192U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220592426.0U Active CN217084192U (en) | 2022-03-17 | 2022-03-17 | Engine pedestal intercooler temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217084192U (en) |
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- 2022-03-17 CN CN202220592426.0U patent/CN217084192U/en active Active
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