CN208734420U - Engine decomposes frictional work and tests cooling fluid temperature control system - Google Patents
Engine decomposes frictional work and tests cooling fluid temperature control system Download PDFInfo
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- CN208734420U CN208734420U CN201821256665.9U CN201821256665U CN208734420U CN 208734420 U CN208734420 U CN 208734420U CN 201821256665 U CN201821256665 U CN 201821256665U CN 208734420 U CN208734420 U CN 208734420U
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Abstract
A kind of engine decomposition frictional work test cooling fluid temperature control system, pressure of return water table, return water temperature sensor, inlet triplet for water switching valve, pre- circulating pump, coolant liquid heat-exchanger rig in parallel and coolant liquid heating device and threeway ratio converging valve are installed on system return pipeline, outlet three way switching valve, flowmeter, leaving water temperature sensors and discharge pressure table are installed on system outlet pipeline；When the water outlet of the water return outlet of system return pipeline and system outlet pipeline is separately connected the first isolation heat exchanger side, the first isolation heat exchanger other side is separately connected engine coolant outlet pipeline and engine coolant inlet pipeline；When the water outlet of the water return outlet of system return pipeline and system outlet pipeline is separately connected engine coolant outlet pipeline and engine coolant inlet pipeline, the second isolation heat exchanger side is connected between inlet triplet for water switching valve and outlet three way switching valve, the second isolation heat exchanger other side is equipped with frequency variable circulating pump.
Description
Technical field
The utility model belongs to internal combustion engine bench test field, is related to a kind of engine and decomposes cooling in frictional work test
Liquid temperature control system, and in particular to engine decompose engine in frictional work test misfire towing astern in the case where it is immediately accurate
The system for controlling engine outlet water temperature, the system can also meet engine and remove operating condition of test requirement under the conditions of water pump.
Background technique
Currently, reducing oil consumption is engine development technical staff face under the increasingly harsh overall background of national emission regulation
The most direct problem faced.A kind of approach for reducing engine consumption is exactly to reduce the secondary frictional work that respectively rubs in engine,
Engine decomposes the frictional work for needing to decomposite engine water pump in frictional work test and whole can accurately to control engine cold
But liquid temperature, so, a set of cooling fluid temperature control system that can satisfy engine decomposition frictional work test demand just seems very
It is crucial.
Difficult point therein is that engine decomposes in frictional work test, need to be the case where not influencing engine water pump work
Lower accurate control engine coolant temperature, is capable of the function and essence of accurate simulation engine water pump after engine water pump dismounting
Really control temperature (± 0.2 DEG C), and it is able to satisfy 40 DEG C -100 DEG C of coolant temperature under different engine of requirement.
Currently, each laboratory mostly uses the control of following several method progress engine coolant temperature both at home and abroad:
1, using single heat exchanger, heat exchange cooling is carried out by peripheral chilled water and engine coolant, it is cold in periphery
Freeze water lines and flow control valve is installed, by controlling the discharge of heat exchanger periphery chilled water side, carries out engine coolant and go out
The control of coolant-temperature gage.But since system does not have heating function, engine cold starting or engine coolant temperature are fallen
It heats up after coming very slow, cannot be stable quickly and meets test demand, also without good temperature control effect, can not meet and start
The requirement of machine decomposition frictional work coolant liquid temperature control.
2, using heat exchanger and heater cooperating, a part of engine coolant passes through heat exchanger and peripheral chilled water
Heat exchange cooling is carried out, while another part engine coolant is heated by heater line, finally by one three
Logical ratio converging valve, the valve positioner can be controlled according to the target temperature of coolant liquid through cooling circuit and heating circuit
The flow of coolant liquid, the final control for realizing engine coolant temperature.Engine coolant temperature control may be implemented in the temperature control
± 1 DEG C of system is still not met by engine and decomposes requirement (± 0.2 DEG C) of the frictional work test to coolant temperature, and should
Cooling fluid temperature control system pump operation will affect the frictional work of engine water pump, and can not be accurate after engine water pump dismounting
Water inflow of the engine pressure is controlled, also can not meet the requirement that engine decomposes the temperature control of frictional work coolant liquid.
In conclusion the prior art there are problems that solve as follows: how accurate effectively to engine coolant temperature
Degree is accurately controlled (± 0.2 DEG C)；How the friction of engine water pump is not influenced in engine decomposition frictional work test
Function；How after engine water pump is fallen in engine dismantling perfect accurate simulation engine water pumping function, ensure that engine water pump rubs
Wipe the smooth decomposition of function.
Utility model content
The utility model is in view of the problems of the existing technology and insufficient, and it is cold to provide a kind of engine decomposition frictional work test
But liquid temperature control system realizes that engine decomposes the accurate control (± 0.2 of the coolant temperature in frictional work test under various operating conditions
DEG C), and the frictional work of engine water pump is not influenced, it is capable of accurate simulation engine water pump after water pump is fallen in engine dismantling
Function, it is ensured that the smooth decomposition of engine water pump frictional work ensures that engine decomposes frictional work test and correctly smoothly carries out.
The utility model is to solve above-mentioned technical problem by following technical proposals:
The utility model provides a kind of engine decomposition frictional work test cooling fluid temperature control system, it is characterized in that, packet
Include the cooling fluid temperature control system water return pipeline being connected, cooling fluid temperature control system outlet pipeline, coolant temperature controller, heating
Water tank temperature controller, heating water tank temperature sensor and coolant pressure controller, the cooling fluid temperature control system water return pipeline
On be sequentially installed with pressure of return water table, return water temperature sensor, inlet triplet for water switching valve, pre- circulating pump and threeway ratio interflow
Valve is connected with the coolant liquid heat-exchanger rig being in parallel and coolant liquid heating dress between the pre- circulating pump and the threeway ratio converging valve
Set, be sequentially installed on the cooling fluid temperature control system outlet pipeline outlet three way switching valve, flowmeter, leaving water temperature sensors and
Discharge pressure table；
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline
When being separately connected the side of the first isolation heat exchanger, the other side of the first isolation heat exchanger is separately connected engine coolant and goes out
Water lines and engine coolant inlet pipeline；
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline
It is separately connected the engine coolant outlet pipeline and when the engine coolant inlet pipeline, the inlet triplet for water switching valve and should
The side of the second isolation heat exchanger is connected between outlet three way switching valve, the other side of the second isolation heat exchanger is equipped with change
Frequency circulating pump；
Water inflow of the engine pressure sensor is installed on the engine coolant inlet pipeline and water inflow of the engine temperature passes
Sensor is equipped with engine outlet water temperature sensor on the engine coolant outlet pipeline；
The heating water tank temperature sensor and the coolant liquid heating device are electrically connected with the heating water tank temperature controller,
The threeway ratio converging valve and the engine outlet water temperature sensor are electrically connected with the coolant temperature controller, which follows
Ring pump and the water inflow of the engine pressure sensor are electrically connected with the coolant pressure controller.
Preferably, being fitted with a manual ball on the side water return pipeline and outlet pipeline of the first isolation heat exchanger
Valve, an other side manual ball valve in parallel for the first isolation heat exchanger.
Preferably, being also equipped with coolant clarifier on the cooling fluid temperature control system water return pipeline.
Preferably, the pre- circulating pump is parallel with a manual ball valve.
Preferably, the coolant liquid heat-exchanger rig includes coolant liquid heat exchanger, peripheral chilled water inlet pipeline and periphery freezing
Water outlet pipeline, the side of the coolant liquid heat exchanger is connected separately with the periphery chilled water inlet pipeline and the periphery chilled water goes out
Water lines, the other side pass through a manual ball valve respectively and connect the pre- circulating pump and the threeway ratio converging valve, periphery freezing
Manual ball valve and freezing water filter are installed on water inlet pipeline, manual ball is installed on the periphery chilled water outlet pipeline
Valve.
Preferably, the coolant liquid heating device includes the heating water tank containing having heaters, this is installed in the heating water tank
Heating water tank temperature sensor, heating water tank temperature switch and heating water tank liquid-level switch, the heating water tank pass through one respectively
Manual ball valve connects the pre- circulating pump and the threeway ratio converging valve.
Preferably, being connected with blowdown valve and automatic liquid supply between the threeway ratio converging valve and the outlet three way switching valve
Valve.
Preferably, the side of the second isolation heat exchanger is connected separately with manual ball valve, an other side and is connected separately with
The frequency variable circulating pump and a manual ball valve.
Preferably, the two sides of the inlet triplet for water switching valve pass through piping connection expansion tank respectively, pacify on the expansion tank
Equipped with safety valve, vent valve, visual liquidometer and liquid-level switch, filling opening is offered on the expansion tank.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with
Good example.
The positive effect of the utility model is:
The utility model realizes the accurate control for the coolant temperature that engine decomposes in frictional work test under various operating conditions
It makes (± 0.2 DEG C), and will not influence the frictional work of engine water pump.It being capable of accurate simulation hair after water pump is fallen in engine dismantling
The function of motivation water pump accurately controls water inflow of the engine pressure (± 2kpa) according to water inflow of the engine pressure MAP, it is ensured that engine
The smooth decomposition of water pump frictional work.Ensure that engine decomposes frictional work test and correctly smoothly carries out.
1, closed loop is controlled by mutually independent heating water tank temperature and engine coolant temperature control closed loop is returned
Road, can guarantee engine under the operating condition of test of different rotating speeds, engine coolant temperature can control target value ±
Within 0.2 DEG C；
2, engine can be excluded completely before engine water pump dismounting using the first isolation heat exchanger decompose friction
Influence of the function coolant liquid temperature control device to engine water pump frictional work, can demonstrate,prove that engine water pump frictional work is subsequent correctly smoothly to be divided
Solution；
3, after engine water pump dismounting, engine is decomposed and is rubbed using three-way switch valve and the second isolation heat exchanger
The temperature-controlled portion of function coolant liquid temperature control device is kept apart with water inflow of the engine pressure controlling section, using frequency variable circulating pump according to
The control water inflow of the engine pressure (± 2kpa) of the requirement automatic and accurate of water inflow of the engine pressure MAP.
The control precision of coolant temperature under each towing astern operating condition of engine can be improved in the implementation of this utility model, meets
Engine decomposes the requirement of frictional work test coolant temperature control；It can ensure that engine water pump frictional work correctly decomposes；
In test engine water pump provides the coolant pressure confession for meeting water inflow of the engine pressure MAP demand for engine after removing
It answers.The utility model can decompose frictional work test for engine and provide essential equipment support.
Detailed description of the invention
Fig. 1 is that the engine of the utility model preferred embodiment decomposes the work original that frictional work tests cooling fluid temperature control system
Manage schematic diagram.
Fig. 2 be the utility model preferred embodiment engine with water pump when system operation principle schematic diagram.
Fig. 3 be the utility model preferred embodiment engine without water pump when system operation principle schematic diagram.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the range of the utility model protection.
As shown in Figure 1, decomposing frictional work the present embodiment provides a kind of engine tests cooling fluid temperature control system comprising phase
Cooling fluid temperature control system water return pipeline, cooling fluid temperature control system outlet pipeline, the coolant temperature controller, heating water tank of connection
Temperature controller, heating water tank temperature sensor T05 and coolant pressure controller.
Wherein, pressure of return water table, return water temperature sensor are sequentially installed on the cooling fluid temperature control system water return pipeline
T03, coolant clarifier 1, inlet triplet for water switching valve 2, pre- circulating pump 3 and threeway ratio converging valve 4, the pre- circulating pump 3 and should
The coolant liquid heat-exchanger rig and coolant liquid heating device being in parallel, the coolant liquid temperature control are connected between threeway ratio converging valve 4
Blowdown valve 5, automatic liquid supply valve 6, outlet three way switching valve 7, flowmeter 8, leaving water temperature are sequentially installed on system outlet pipeline
Sensor T04 and discharge pressure table.
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline
When being separately connected the side of the first isolation heat exchanger 9, the other side of the first isolation heat exchanger 9 is separately connected engine coolant
Outlet pipeline and engine coolant inlet pipeline.
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline
When being separately connected the engine coolant outlet pipeline and the engine coolant inlet pipeline, 2 He of inlet triplet for water switching valve
The second isolation heat exchanger 10 is connected between the outlet three way switching valve 7, the side of the second isolation heat exchanger 10 is separately connected
There are a manual ball valve, the other side to be connected separately with frequency variable circulating pump 11 and a manual ball valve, the frequency variable circulating pump 11 is in parallel
There is a manual ball valve.
Water inflow of the engine pressure sensor P is installed on the engine coolant inlet pipeline and water inflow of the engine temperature passes
Sensor T01 is equipped with engine outlet water temperature sensor T02 on the engine coolant outlet pipeline.
The heating water tank temperature sensor T05 and the coolant liquid heating device are electrically connected with the heating water tank temperature controller
It connecing, the threeway ratio converging valve 4 and engine outlet water temperature sensor T02 are electrically connected with the coolant temperature controller,
The frequency variable circulating pump 11 and water inflow of the engine pressure sensor P are electrically connected with the coolant pressure controller.
In the present embodiment, engine outlet water temperature sensor T02 is mounted on engine water outlet road, starts for detecting
Machine cooling liquid outlet temperature；Water inflow of the engine temperature sensor T01, water inflow of the engine pressure sensor P be mounted on engine into
In water lines, it is respectively used to the temperature and pressure of detection engine coolant import.
Return water temperature sensor T03 and pressure of return water table are mounted on cooling fluid temperature control system water return pipeline, for detecting
Cooling fluid temperature control system return water temperature and pressure of return water；Leaving water temperature sensors T04 and discharge pressure table are mounted on coolant liquid temperature
On control system outlet pipeline, for detecting cooling fluid temperature control system leaving water temperature and discharge pressure.
First isolation heat exchanger 9 is mounted on engine side, and two sides respectively connected engine water-in and water-out coolant line
Go out with decomposition frictional work temperature control system, return water coolant line, can isolate engine coolant circuit and decomposes frictional work examination
Cooling fluid temperature control system coolant circuit is tested, can guarantee engine water pump not by water in decomposition frictional work cooling fluid temperature control system
The influence of pump.It is equipped with manual ball valve on the pipeline of first isolation heat exchanger, 9 front and back, can be convenient the first isolation heat exchanger 9
Replacement.An engine side manual ball valve in parallel for first isolation heat exchanger 9, can in the presence of the first isolation heat exchanger 9 hand
The dynamic pressure difference for adjusting engine Inlet and outlet water.
Coolant clarifier 1 is mounted on cooling fluid temperature control system water return pipeline, for filtering from engine side reflux
Impurity in coolant liquid.
Pre- circulating pump 3 is mounted on cooling fluid temperature control system water return pipeline, can be the cooling in cooling fluid temperature control system
Liquid provides circulation power.Manual ball valve is installed on pre- circulating pump 3 pipeline in parallel, the stream of pre- circulating pump can be manually adjusted
Amount.
The coolant liquid heat-exchanger rig includes that coolant liquid heat exchanger 12, peripheral chilled water inlet pipeline 13 and peripheral chilled water go out
Water lines 14, the side of the coolant liquid heat exchanger 12 are connected separately with the periphery chilled water inlet pipeline 13 and the periphery chilled water
Outlet pipeline 14, the other side pass through a manual ball valve respectively and connect the pre- circulating pump 3 and the threeway ratio converging valve 4, this is outer
It encloses and manual ball valve and freezing water filter is installed on chilled water inlet pipeline 13, installed on the periphery chilled water outlet pipeline 14
There is manual ball valve.
The coolant liquid heating device includes the heating water tank 15 containing having heaters, is equipped with the heating in the heating water tank 15
Water tank temperature sensor T05, heating water tank temperature switch TS and heating water tank liquid-level switch, the heating water tank 15 pass through one respectively
A manual ball valve connects the pre- circulating pump 3 and the threeway ratio converging valve 4.
Coolant liquid heat exchanger 12 and heating water tank 15 are separately mounted on two parallel pipelines of pre- 3 rear end of circulating pump: cold
But the side of liquid heat exchanger 12 is the coolant liquid circulation line that engine decomposes that frictional work tests cooling fluid temperature control system, in pipeline
There are two manual ball valves for upper dress, can facilitate the replacement of coolant liquid heat exchanger；The other side is peripheral chilled water inlet and outlet pipe, is used
In the cooling coolant liquid flowed through on this pipeline, ball valve is installed on peripheral chilled water inlet tube and outlet tube road respectively；Chilled water mistake
Filter is mounted in the inlet ductwork of peripheral chilled water, can filter some impurity removed in peripheral chilled water, protection cooling
Heat exchanger 12.
Having heaters is installed in heating water tank 15, the coolant liquid for the cooling fluid temperature control system for the branch is added
Heat；Heating water tank temperature sensor T05 is for testing heating water tank temperature and communicating to rack；Heating water tank temperature switch TS is used
Heating circuit power protective equipment is cut off in issuing alarm signal after the COOLANT TEMPERATURE in heating water tank 15；Heat water
Case liquid-level switch is used to detect the coolant liquid liquid level in heating water tank 15 and in the too low alarm of liquid level.The control of heating water tank temperature
Device can adjust heater power by a power inverter according to the coolant liquid target temperature of set heating water tank,
The final temperature control for realizing heating water tank.There are two manual ball valves for dress on the pipeline of 15 front and back of heating water tank, can conveniently add
The replacement of hot device.
Threeway ratio converging valve 4 is installed on the rear end of cooling heat exchanger 12 and heating water tank 15, coolant temperature controller
It can pass through in conjunction with set coolant temperature control target temperature and engine outlet water temperature sensor the T02 temperature surveyed
Aperture of the threeway ratio converging valve 4 on cooling circuit and heating circuit is adjusted, finally realizes engine outlet coolant temperature
Accurate control (± 0.2 DEG C).
Blowdown valve 5 is mounted on after threeway ratio converging valve 4, is located at cooling fluid temperature control system circulation line minimum point, is used
Coolant liquid in emptying system；Quick supplement of the automatic liquid supply valve 6 for coolant liquid in cooling fluid temperature control system.
Two three-way switch valves (i.e. inlet triplet for water switching valve 2 and outlet three way switching valve 7) are mainly used for engine and tear open
Engine coolant temperature control circulation line and water inflow of the engine that frictional work tests cooling fluid temperature control system will be decomposed after falling water pump
Pressure control loop line isolation is opened.
The two sides of the inlet triplet for water switching valve 2 pass through piping connection expansion tank 16 respectively, install on the expansion tank 16
There are safety valve 17, vent valve 18, visual liquidometer LI and liquid-level switch LS, offers filling opening on the expansion tank 16.Expansion
Water tank 16 is for the pressure buffer in temperature control system when coolant pressure variation；Vent valve 18 on expansion tank is cold for system
But the deflation of liquid pipeline；Safety valve 17 on expansion tank is used for coolant system pressure protection；Liquid feeding on expansion tank 16
Mouth is used for manual liquid feeding；Liquid-level switch LS in expansion tank 16 for detection system minimum liquid level and generates the too low report of liquid level
Alert signal prompt user of service liquid feeding；Visual liquidometer LI on expansion tank is used to observe the liquid level in expansion tank, can be auxiliary
Liquid feeding is helped, avoids overflowing.
Second isolation heat exchanger 10 is mounted between the third port of two three-way switch valves, is used for engine coolant
The isolation and heat exchange of temperature control circulation line and water inflow of the engine pressure control loop pipeline, in removal of engine water pump and first
It is isolated after heat exchanger 9, can ensures the accurate control of engine coolant temperature.The pipeline of second isolation heat exchanger, 10 front and back
On be equipped with manual ball valve, can be convenient the replacement of the second isolation heat exchanger 10.
Frequency variable circulating pump 11 is mounted on the water inlet of 10 engine side of the second isolation heat exchanger, dismantles water pump in engine
Afterwards, it can replace engine water pump and provide power for the coolant liquid circulation of engine side, moreover, coolant pressure controller can be with
The actual pressure surveyed in conjunction with the demand pressure and water inflow of the engine pressure sensor of water inflow of the engine pressure MAP is become by control
The motor frequency conversion of frequency circulating pump 11 finally accurately controls engine coolant intake pressure (± 2kpa).It is in parallel in pre- circulating pump 3
Pipeline on manual ball valve is installed, the flow of pre- circulating pump 3 can be manually adjusted.
Flowmeter 8 is mounted on cooling fluid temperature control system export pipeline, is dismantled engine intake after water pump for engine
The test of coolant rate.
The course of work that the engine of the present embodiment decomposes frictional work test cooling fluid temperature control system is as follows:
Before engine water pump dismantling (as shown in Figure 2):
1, installation connects peripheral chilled water into, water return pipeline, the first isolation heat exchanger 9, engine coolant water-in and water-out
Pipeline, compressed air gas circuit needed for three-way switch valve；
2, chilled water is opened into, return water manual ball valve, is opened coolant liquid circulation line ball valve, is opened compressed air ball valve；
3, engine decomposes in frictional work test cooling fluid temperature control system and engine and suitable coolant liquid is added；It opens
System power supply opens pre- circulating pump, as coolant liquid flows into pipeline, need to be supplemented suitable coolant liquid；
4, required coolant liquid heating temperature is set on heating water tank temperature controller；
5, required coolant liquid target temperature is set on coolant temperature controller；
6, the pre- thermostabilization for carrying out a period of time, can start engine after other equipment also steady running and be started
Machine decomposes frictional work and tests.
After engine water pump dismantling (as shown in Figure 3):
1, the first isolation heat exchanger 9 of engine side of dismantling；
2, installation connects peripheral chilled water into, water return pipeline, engine coolant inlet and outlet pipe, three-way switch valve
Required compressed air gas circuit；
3, chilled water is opened into, return water manual ball valve, is opened coolant liquid circulation line ball valve, is opened compressed air ball valve；
4, engine decomposes in frictional work test cooling fluid temperature control system and engine and suitable coolant liquid is added；It opens
System power supply opens pre- circulating pump, as coolant liquid flows into pipeline, need to be supplemented suitable coolant liquid；
5, frequency variable circulating pump is opened, coolant liquid water inlet, the threeway of outlet pipeline starting switching valve carry out pipeline switching；
6, required coolant liquid heating temperature is set on heating water tank temperature controller；
7, required coolant liquid target control temperature is set on coolant temperature controller；
8, water inflow of the engine pressure target value required for being arranged on coolant pressure controller；
9, after the pre- thermostabilization for carrying out a period of time, engine can be started after other equipment also steady running and sent out
Motivation is decomposed frictional work and is tested.
The device not only can greatly improve engine coolant in engine decomposes the frictional work entire test period
It controls precision (± 0.2 DEG C), it can also be ensured that between engine coolant circulation and cooling fluid temperature control system coolant liquid circulation
Isolation.Coolant temperature control is carried out to engine under the premise of not influencing the frictional work of engine water pump, has been ensured entire
Engine, which decomposes frictional work test, accurately can correctly decomposite the frictional work of engine water pump.Meanwhile the system can also
The function that engine water pump is accurately substituted after engine water pump dismounting, accurately controls according to water inflow of the engine pressure MAP
Water inflow of the engine pressure (± 2kpa) decomposes frictional work test for engine and continues to provide after removal of engine water pump
It is reliable to ensure.Which achieves three technical effects proposed in the utility model.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (9)
1. a kind of engine decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that it includes the coolant liquid being connected
Temperature control system water return pipeline, cooling fluid temperature control system outlet pipeline, coolant temperature controller, heating water tank temperature controller,
Heating water tank temperature sensor and coolant pressure controller are sequentially installed with return water on the cooling fluid temperature control system water return pipeline
Pressure gauge, return water temperature sensor, inlet triplet for water switching valve, pre- circulating pump and threeway ratio converging valve, the pre- circulating pump and should
The coolant liquid heat-exchanger rig and coolant liquid heating device being in parallel are connected between threeway ratio converging valve, the coolant liquid temperature control system
Outlet three way switching valve, flowmeter, leaving water temperature sensors and discharge pressure table are sequentially installed on system outlet pipeline；
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline are distinguished
When the side of connection the first isolation heat exchanger, the other side of the first isolation heat exchanger is separately connected engine coolant outlet pipe
Road and engine coolant inlet pipeline；
When the water return outlet of the cooling fluid temperature control system water return pipeline and the water outlet of the cooling fluid temperature control system outlet pipeline are distinguished
When connecting the engine coolant outlet pipeline and the engine coolant inlet pipeline, the inlet triplet for water switching valve and the water outlet
The side of the second isolation heat exchanger is connected between three-way switch valve, the other side of the second isolation heat exchanger is equipped with frequency conversion and follows
Ring pump；
Water inflow of the engine pressure sensor and water inflow of the engine temperature sensor are installed on the engine coolant inlet pipeline,
Engine outlet water temperature sensor is installed on the engine coolant outlet pipeline；
The heating water tank temperature sensor and the coolant liquid heating device are electrically connected with the heating water tank temperature controller, this three
Logical ratio converging valve and the engine outlet water temperature sensor are electrically connected with the coolant temperature controller, the frequency variable circulating pump
It is electrically connected with the coolant pressure controller with the water inflow of the engine pressure sensor.
2. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that this first every
Be fitted with a manual ball valve on side water return pipeline and outlet pipeline from heat exchanger, this first isolation heat exchanger it is another
One manual ball valve of side parallel connection.
3. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the coolant liquid
Coolant clarifier is also equipped on temperature control system water return pipeline.
4. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the pre- circulation
Pump is parallel with a manual ball valve.
5. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the coolant liquid
Heat-exchanger rig includes coolant liquid heat exchanger, peripheral chilled water inlet pipeline and peripheral chilled water outlet pipeline, coolant liquid heat exchange
The side of device is connected separately with the periphery chilled water inlet pipeline and the periphery chilled water outlet pipeline, the other side pass through one respectively
A manual ball valve connects the pre- circulating pump and the threeway ratio converging valve, is equipped with manual ball on the periphery chilled water inlet pipeline
Valve and freezing water filter, are equipped with manual ball valve on the periphery chilled water outlet pipeline.
6. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the coolant liquid
Heating device includes the heating water tank containing having heaters, and the heating water tank temperature sensor, heating are equipped in the heating water tank
Water tank temperature switch and heating water tank liquid-level switch, the heating water tank pass through respectively a manual ball valve connect the pre- circulating pump and
The threeway ratio converging valve.
7. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the threeway ratio
Blowdown valve and automatic liquid supply valve are connected between example converging valve and the outlet three way switching valve.
8. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that this second every
A manual ball valve is connected separately with from the side of heat exchanger, the other side is connected separately with the frequency variable circulating pump and a manual ball
Valve.
9. engine as described in claim 1 decomposes frictional work and tests cooling fluid temperature control system, which is characterized in that the water inlet three
The two sides of direction changeover valve pass through piping connection expansion tank respectively, and safety valve, vent valve, visual liquid are equipped on the expansion tank
Position is counted and liquid-level switch, offers filling opening on the expansion tank.
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| CN201821256665.9U CN208734420U (en) | 2018-08-06 | 2018-08-06 | Engine decomposes frictional work and tests cooling fluid temperature control system |
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| CN201821256665.9U CN208734420U (en) | 2018-08-06 | 2018-08-06 | Engine decomposes frictional work and tests cooling fluid temperature control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110307584A (en) * | 2019-07-05 | 2019-10-08 | 沈阳磁力通能源技术有限公司 | A kind of constant temperature heating installation in electromagnetic heating |
| CN110425028A (en) * | 2019-08-07 | 2019-11-08 | 中国北方发动机研究所(天津) | A kind of test water system |
| CN110542559A (en) * | 2019-08-29 | 2019-12-06 | 无锡沃尔福汽车技术有限公司 | Cold water temperature control system in engine |
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2018
- 2018-08-06 CN CN201821256665.9U patent/CN208734420U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307584A (en) * | 2019-07-05 | 2019-10-08 | 沈阳磁力通能源技术有限公司 | A kind of constant temperature heating installation in electromagnetic heating |
| CN110425028A (en) * | 2019-08-07 | 2019-11-08 | 中国北方发动机研究所(天津) | A kind of test water system |
| CN110542559A (en) * | 2019-08-29 | 2019-12-06 | 无锡沃尔福汽车技术有限公司 | Cold water temperature control system in engine |
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