CN217602773U - Cooling device for engine test - Google Patents
Cooling device for engine test Download PDFInfo
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- CN217602773U CN217602773U CN202220421013.6U CN202220421013U CN217602773U CN 217602773 U CN217602773 U CN 217602773U CN 202220421013 U CN202220421013 U CN 202220421013U CN 217602773 U CN217602773 U CN 217602773U
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Abstract
The utility model discloses a cooling device for engine test, which comprises a cooling device and an expansion water tank, wherein the expansion water tank comprises a tank body, a water inlet unit, a pressure relief unit, a pressurizing unit, a pressure sensor, a liquid level window unit and a controller, and the controller is in signal connection with the water inlet unit, the pressure relief unit, the pressurizing unit, the pressure sensor and the liquid level window unit; the utility model monitors the liquid level height in the expansion water tank in real time through the liquid level window unit, so that the control unit can supplement or overflow in time according to the liquid level height; the pressure in the expansion water tank is monitored in real time through the pressure sensor, so that the control unit can control the pressure relief unit or the pressurization unit in time to complete pressure regulation; in addition, after the engine is detected, cooling water in the cooling device flows back to the expansion water tank, recycling of the cooling water is achieved, and cost reduction is facilitated.
Description
Technical Field
The utility model relates to the field of automobiles, in particular to cooling device is used in engine test.
Background
The traditional automobile technology development is mature day by day, and the new energy automobile is different from the army and prominent, but no matter what type of automobile, the power assembly system can not be separated. In the development process of the power assembly system, various performance tests are necessary for the power assembly system, wherein one of the final tests is to test the engine. Engines generate a lot of heat during testing, and therefore, it is necessary to cool the engine during testing.
In the prior art, cooling of an engine in a test process generally comprises cooling equipment and an expansion water tank, wherein the expansion water tank provides cooling water for the cooling equipment; however, some problems still exist at present, for example, the liquid level height in the expansion water tank usually needs to be observed manually by an operator, if the operator cannot observe timely, the liquid level in the expansion water tank is too low, and liquid cannot be supplied, so that the test engineering is influenced; for another example, after the engine is tested, the cooling liquid in the cooling device is usually directly discharged, which causes a certain waste, and the expansion tank needs to be refilled for another test.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a cooling device is used in engine test, to the liquid level ability real time monitoring in the expansion tank, and the engine inspection back that finishes, cooling water in the cooling arrangement also can obtain reuse.
In order to solve the technical problem, the utility model provides a cooling device is used in engine test, including cooling arrangement and expansion tank, expansion tank includes:
a box body;
the water inlet unit is arranged at the top of the box body and is connected with a water outlet of the cooling equipment and a cooling water source through a three-way valve;
the pressure relief unit is arranged at the top of the box body and used for relieving the internal pressure of the expansion water tank;
the pressurizing unit is arranged at the top of the box body and comprises pressurizing equipment, the pressurizing equipment is communicated with the expansion water tank, and the pressurizing unit is used for filling pressure into the expansion water tank;
the pressure sensor is arranged inside the expansion water tank and used for detecting the internal pressure of the expansion water tank;
the liquid level window unit is arranged on the side wall of the expansion water tank and comprises a standard liquid level sensor, a liquid level upper limit sensor and a liquid level lower limit sensor;
and the control unit is in signal connection with the water inlet unit, the pressure relief unit, the pressurization unit, the pressure sensor and the liquid level window unit.
Preferably, the pressure relief unit is provided with a first electromagnetic valve; when the pressure detected by the pressure sensor exceeds a set maximum pressure value, the control unit controls the first electromagnetic valve to be opened so as to release the pressure inside the expansion water tank.
Preferably, the pressurizing unit is mounted with a second solenoid valve which is mounted between the pressurizing device and the expansion tank; when the pressure detected by the pressure sensor is lower than the set minimum pressure value, the control unit controls the second electromagnetic valve to be opened, and the pressurizing equipment fills pressure into the expansion water tank.
Preferably, the height of the upper liquid level sensor is higher than that of the standard liquid level sensor, and the height of the standard liquid level sensor is higher than that of the lower liquid level sensor.
Preferably, when the liquid level in the expansion water tank is lower than the liquid level lower limit sensor, the control unit controls the three-way valve to communicate the expansion water tank with the cooling water source; and when the liquid level in the expansion water tank reaches the standard liquid level sensor, the control unit closes the three-way valve.
Preferably, the side wall of the box body is provided with an overflow hole; when the liquid level in the expansion water tank is higher than the upper limit liquid level sensor, the control unit controls the overflow hole to be opened.
Preferably, the liquid level window unit is made of transparent materials.
Preferably, the length value of the liquid level window unit is greater than the highest value of the liquid level in the expansion tank.
Preferably, after the engine test is finished, the control unit controls the three-way valve to communicate the expansion water tank with the cooling device so as to return the cooling liquid in the cooling device to the expansion water tank.
Preferably, a drain port is provided at a bottom of the expansion tank to communicate with the cooling device.
The utility model monitors the liquid level height in the expansion water tank in real time through the liquid level window unit, so that the control unit can supplement or overflow in time according to the liquid level height; the pressure in the expansion water tank is monitored in real time through the pressure sensor, so that the control unit can control the pressure relief unit or the pressurization unit in time to complete pressure regulation; in addition, after the engine is detected, cooling water in the cooling device flows back to the expansion water tank, recycling of the cooling water is achieved, and cost reduction is facilitated.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of a cooling device for engine testing according to the present invention;
in the figure, 1-box; 2-a water inlet unit; 3-a pressure relief unit; 4-a pressurizing unit; 5-a pressure sensor; 6-liquid level window unit; 7-a control unit; 8-a cooling water source; 9-a cooling device; 11-an overflow aperture; 12-a water discharge port; 21-three-way valve; 31-a first solenoid valve; 41-a second solenoid valve; 42-a pressurizing device; 61-liquid level lower limit sensor; 62-standard level sensor; 63-upper level sensor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model discloses a cooling device is used in engine test, including cooling arrangement and expansion tank, expansion tank includes:
a box body;
the water inlet unit is arranged at the top of the box body and is connected with a water outlet of the cooling equipment and a cooling water source through a three-way valve;
the pressure relief unit is arranged at the top of the box body and used for relieving the internal pressure of the expansion water tank;
the pressurizing unit is arranged at the top of the box body and comprises pressurizing equipment, the pressurizing equipment is communicated with the expansion water tank, and the pressurizing unit is used for filling pressure into the expansion water tank;
the pressure sensor is arranged inside the expansion water tank and used for detecting the internal pressure of the expansion water tank;
the liquid level window unit is arranged on the side wall of the expansion water tank and comprises a standard liquid level sensor, a liquid level upper limit sensor and a liquid level lower limit sensor;
and the control unit is in signal connection with the water inlet unit, the pressure relief unit, the pressurization unit, the pressure sensor and the liquid level window unit.
In the embodiment of the utility model, the liquid level window unit is used for monitoring the liquid level in the expansion water tank, generally, the position height of the lower limit sensor of the liquid level is the lowest, the height of the standard liquid level sensor is higher than the lower limit sensor of the liquid level, and the position height of the upper limit sensor of the liquid level is the highest; when the liquid level in the expansion water tank is lower than the liquid level lower limit sensor, the control unit controls the three-way valve to communicate a water inlet unit of the expansion water tank with a cooling water source, the cooling water source provides cooling water into the expansion water tank, and when the liquid level of the cooling water in the expansion water tank reaches the standard liquid level sensor, the control unit controls the three-way valve to be closed; the operation realizes the real-time monitoring of the liquid level in the expansion water tank, and ensures the uninterrupted supply of cooling water of cooling equipment in the test process of the engine; additionally, the embodiment of the utility model provides an in, expansion tank's the unit of intaking and cooling device outlet intercommunication finish when the engine test, and the control unit control three-way valve intercommunication expansion tank's water inlet and cooling device's outlet, cooling water are discharged to expansion tank from cooling device again, have realized recycling of cooling water, are favorable to reduceing the cost.
In a particular embodiment, the length of the level window unit is greater than the maximum level of the liquid in the expansion tank. Understandably, the bottom of the liquid level window unit is at least flush with the bottom of the expansion tank, or lower than the bottom of the expansion tank, and the top of the liquid level window unit is at least higher than the height of the overflow hole of the expansion tank. Preferably, the liquid level window unit adopts transparent material so that operating personnel observes the liquid level in the expansion tank simultaneously.
In a specific embodiment, the pressure relief unit is provided with a first electromagnetic valve; when the pressure detected by the pressure sensor exceeds a set maximum pressure value, the control unit controls the first electromagnetic valve to be opened so as to release the pressure inside the expansion water tank.
In a specific embodiment, the pressurizing unit is provided with a second electromagnetic valve, and the second electromagnetic valve is arranged between the pressurizing device and the expansion water tank; if the pressure detected by the pressure sensor is lower than the set minimum pressure value, the control unit controls the second electromagnetic valve to be opened, and the pressurizing equipment fills pressure into the expansion water tank. Generally, a pressurizing device increases the pressure in the expansion tank by filling the expansion tank with a gas or a gas-water mixture.
In a specific embodiment, the side wall of the box body is provided with an overflow hole; when the liquid level in the expansion water tank is higher than the liquid level upper limit sensor, the control unit controls the overflow hole to be opened. Understandably, the overflow hole is provided to prevent adverse effects caused by too high a liquid level in the expansion tank.
In a particular embodiment, the bottom of the expansion tank is provided with a drain opening for communicating with the cooling device for providing cooling water to the cooling device.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cooling device for engine test, includes cooling arrangement and expansion tank, its characterized in that, expansion tank includes:
a box body;
the water inlet unit is arranged at the top of the box body and is connected with a water outlet of the cooling equipment and a cooling water source through a three-way valve;
the pressure relief unit is arranged at the top of the tank body and used for relieving the internal pressure of the expansion water tank;
the pressurizing unit is arranged at the top of the box body and comprises pressurizing equipment, the pressurizing equipment is communicated with the expansion water tank, and the pressurizing unit is used for filling pressure into the expansion water tank;
the pressure sensor is arranged inside the expansion water tank and used for detecting the internal pressure of the expansion water tank;
the liquid level window unit is arranged on the side wall of the expansion water tank and comprises a standard liquid level sensor, a liquid level upper limit sensor and a liquid level lower limit sensor;
and the control unit is in signal connection with the water inlet unit, the pressure relief unit, the pressurization unit, the pressure sensor and the liquid level window unit.
2. The cooling device for engine test as set forth in claim 1, wherein the pressure relief unit is installed with a first solenoid valve; when the pressure detected by the pressure sensor exceeds a set maximum pressure value, the control unit controls the first electromagnetic valve to be opened so as to release the pressure in the expansion water tank.
3. The cooling apparatus for engine test as set forth in claim 1, wherein the pressurizing unit is mounted with a second solenoid valve installed between the pressurizing device and the expansion tank; when the pressure detected by the pressure sensor is lower than the set minimum pressure value, the control unit controls the second electromagnetic valve to be opened, and the pressurizing equipment fills pressure into the expansion water tank.
4. The cooling device for engine test as defined in claim 1, wherein the height of the upper level sensor is higher than the height of the standard level sensor, and the height of the standard level sensor is higher than the height of the lower level sensor.
5. The cooling device for engine test as defined in claim 4, wherein the control unit controls the three-way valve to communicate the expansion tank with the cooling water source when a liquid level in the expansion tank is lower than the lower liquid level limit sensor; and when the liquid level in the expansion water tank reaches the standard liquid level sensor, the control unit closes the three-way valve.
6. The cooling device for engine test as set forth in claim 4, wherein the side wall of the box body is provided with an overflow hole; when the liquid level in the expansion water tank is higher than the upper limit liquid level sensor, the control unit controls the overflow hole to be opened.
7. The cooling device for engine test as defined in claim 4, wherein the liquid level window unit is made of transparent material.
8. The cooling device for engine test as defined in claim 7, wherein the length of the liquid level window unit is greater than the maximum level of the liquid in the expansion tank.
9. The cooling apparatus for engine test as defined in claim 1, wherein after the engine test is completed, the control unit controls the three-way valve to communicate the expansion tank with the cooling device so as to return the coolant in the cooling device to the expansion tank.
10. The cooling apparatus for engine test as set forth in claim 1, wherein the expansion tank is provided at a bottom thereof with a drain port to communicate with the cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220421013.6U CN217602773U (en) | 2022-02-28 | 2022-02-28 | Cooling device for engine test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220421013.6U CN217602773U (en) | 2022-02-28 | 2022-02-28 | Cooling device for engine test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602773U true CN217602773U (en) | 2022-10-18 |
Family
ID=83563055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220421013.6U Active CN217602773U (en) | 2022-02-28 | 2022-02-28 | Cooling device for engine test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602773U (en) |
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2022
- 2022-02-28 CN CN202220421013.6U patent/CN217602773U/en active Active
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