CN211504672U

CN211504672U - Adjustable cooler and cooling system for low-temperature radiator test of engine

Info

Publication number: CN211504672U
Application number: CN202020280246.XU
Authority: CN
Inventors: 姜文平; 魏仁举; 罗鹏
Original assignee: Shanghai Volvo Automobile Research And Development Co ltd
Current assignee: Shanghai Volvo Automobile Research And Development Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-09-15
Anticipated expiration: 2030-03-09

Abstract

The application provides a regulation formula cooler and cooling system for engine low temperature radiator test, should adjust the formula cooler and include: a box body; a support assembly connected to and supporting the case; and a cooling cycle assembly attached to the case, comprising: at least one spraying member for spraying a test coolant into the tank, comprising: at least two nozzles located at different heights; the outlet is arranged on the box body and penetrates through the box body; and a main line having one end connected to the at least one spray member and the other end connected to the outlet, the main line circulating a test coolant; wherein the at least one injection member further comprises: a first line connecting the main line and one of the at least two nozzles; and a second line connecting the first line and another nozzle of the at least two nozzles.

Description

Adjustable cooler and cooling system for low-temperature radiator test of engine

Technical Field

The present application relates to a regulated cooler. The application also relates to a cooling system comprising such a trim cooler. And in particular to a trim cooler and cooling system for use in testing engines, especially engines (especially engines including low temperature radiators).

Background

In recent years, with the rapid development of the automobile industry, the development and test of engine parts are more and more emphasized by automobile main engine factories. Due to the increasing severity of automotive legislation and the updating of engine technology, more test aids are being used in engine testing. Today, in the development and test of engine models, the control of the after-intercooling temperature is very critical, and therefore, how to realize effective and accurate control of the after-intercooling temperature is an important ring of engine tests. Today, in many newly developed engines, an inter-regulated cooler has been integrated not only in the intake manifold, but also to achieve intake air temperature drop using an externally mounted radiator (typically disposed at the front of the vehicle outside the engine).

However, the prior art engine cooling only involves a charge air cooler and is not provided with a radiator, and accordingly, a cooler developed for a test of the prior art engine cooling uses air as a medium to detect the cooling effect of the engine, which is small in volume and not very efficient. Such experimental coolers have not been able to meet the above-described tests for newly developed engines having an externally mounted radiator. This places new demands on the engine cooling equipment in the future.

Therefore, how to realize accurate control of the inlet air temperature is a problem to be solved urgently in the engine bench test under the premise that the laboratory simulates the conditions of the engine on the whole vehicle and does not influence the pressure and the flow of the low-temperature circulating water path of the engine.

However, since the current solutions are directed to cooling the intake air temperature by means of a coolant, such a design is no longer applicable in new engine intercoolers (the intercoolers being integrated in the intake manifold).

SUMMERY OF THE UTILITY MODEL

The present application seeks to provide a trim cooler and cooling system for engine cold radiator testing which is advantageous over the prior art in at least one aspect.

To this end, the present application provides in one aspect a trim cooler for engine cold radiator testing, comprising:

a box body;

a support assembly connected to and supporting the case; and

a cooling cycle assembly attached to the case, comprising:

at least one spraying member for spraying a test coolant into the tank, comprising: at least two nozzles located at different heights;

the outlet is arranged on the box body and penetrates through the box body; and

a main line having one end connected to the at least one injection member and the other end connected to an outlet, the main line circulating a test coolant;

wherein the at least one injection component further comprises: a first line connecting the main line and one of the at least two nozzles; and a second line connecting the first line and another nozzle of the at least two nozzles.

Optionally, the conditioning cooler further comprises: a bypass line and a bypass port, wherein the bypass port is attached to the tank and communicates to the interior of the tank, the bypass line having one end coupled to the bypass port and another end coupled to the main line.

Optionally, the adjustable cooler is configured to utilize a bypass line and a bypass port such that a quantity of test coolant is injected and deposited inside the tank for cooling.

Optionally, the adjustable cooler is configured to adjust a soaking height of the radiator in the tank body by adjusting a liquid level of the cooling liquid for the internal test of the cooler, so as to realize temperature control.

Optionally, the conditioning cooler further comprises: and the liquid level sensor is used for detecting the liquid level height of the cooling liquid for the test in the tank body and is configured to send an alarm signal when the liquid level height is lower than a preset threshold value.

Optionally, the support assembly comprises: a roller at the bottom of the support assembly to facilitate movement of the adjustable cooler; and a slide way extending in the vertical direction so as to adjust the height of the box body.

Optionally, the adjustable cooler further comprises: a first valve mounted on the main line and configured to control flow of test coolant circulating in the main line to the first line.

Optionally, the adjustable cooler further comprises: a second valve mounted on the second line and arranged to control the flow of test coolant in the first line to the second line.

Optionally, the conditioning cooler further comprises: and a third valve provided on the outlet and configured to control discharge of the test coolant deposited inside the tank.

Optionally, the box includes: a housing made of a stainless steel material; and a top cover removably attached to the housing and made at least partially of a transparent material.

The present application provides in another aspect a cooling system for an engine cold radiator test, characterised by comprising a trim cooler as described above.

Optionally, the trim cooler further comprises two orifices, at least one of which is provided with a pressure sensor and/or a temperature sensor to measure the pressure and/or temperature of the engine coolant circulating in the radiator, and the cooling system further comprises: a radiator connected to the engine by an inlet duct and an outlet duct, engine cooling circulating between the radiator and the engine, wherein the radiator is located in the tank of a trim cooler, the inlet and outlet ducts passing through the two apertures respectively.

Optionally, the cooler further comprises a fixing member configured to be able to move and rotate the radiator fixed thereto inside the case.

Optionally, the cooling system further comprises: a controller coupled to the cooler, the controller configured to control cooling of the heat sink based on a temperature change of the heat sink during actual use.

The adjustable cooler and cooling system according to the present application has at least the following advantages: the 'water-water' cooling is realized to replace 'water-air' cooling, and the temperature is accurately controlled; a multiple cooling mode; multi-position and multi-angle adjustment; the spraying range is wide; preventing the water passage from being blocked; the leakage-proof performance is good; the cooling efficiency is improved; convenient use, simple operation and the like.

Drawings

Fig. 1 shows a sectional view of a conditioning cooler according to an embodiment of the application.

Fig. 2 shows a front view of a conditioning cooler according to an embodiment of the present application.

FIG. 3 shows a schematic diagram of a cooling system according to an embodiment of the present application.

Detailed Description

Some possible embodiments of the present application are described below with reference to the drawings. It should be noted that the figures are not drawn to scale. Some details may be exaggerated for clarity and some details not necessarily shown may be omitted.

As shown in fig. 1, according to one embodiment of the present application, a regulated cooler 100 according to one embodiment of the present application is shown.

The conditioning cooler 100 includes: the casing 1, top cap 2, supporting component 3. A top cover 2 is removably positioned on top of the housing 1, the top cover 2 and housing 1 defining a tank for the trim cooler 100. The housing 1 is mounted at its bottom to a support assembly 3.

The trim cooler 100 also includes a cooling circulation assembly: a main line 38, an injection member and an outlet 33. The injection member includes: a first line 16, a second line 17, a first nozzle 4 and a second nozzle 10.

The main line 38 is circulated with a test coolant. The first pipeline 16 includes two ends and a middle portion connecting the two ends. One end of the first line 16 is connected to and fluidly connected to a main line 38. The other end of the first line 16 is connected to and in fluid communication with a first nozzle 4 located inside the tank at a first connection point of the housing 1.

The second line 17 includes two ends and a middle portion connecting the two ends. One end of the second line 17 is connected to and fluidly connected to the middle portion of the first line 16. The other end of the second line is connected to and fluidly connected to a second nozzle 10 located inside the tank through a second connection point of the housing 1. The second connection point and the first connection point are not coincident.

Optionally, the second connection point is located below the first connection point.

The trim cooler 100 also includes a first valve 35. The first valve 35 is installed on the main line 38 and is disposed such that the test coolant circulating in the main line 38 is led to the first line 16 when the first valve 35 is opened, and the test coolant circulating in the main line 38 is not led to the first line 16 when the first valve 35 is closed. Preferably, the first valve 35 is a solenoid valve.

The injection component further comprises a second valve 18. The second valve 18 is installed on the second line 17 and is disposed such that the test coolant is led to the second line 17 when the second valve 18 is open, and the test coolant is not led to the second line 17 when the second valve is closed. Preferably, the second valve is a solenoid valve.

The regulated cooler 100 also includes a third valve disposed on the outlet 33 such that test coolant deposited on the interior of the tank is discharged when the third valve is open. Optionally, the third valve is a manual valve.

Alternatively, the trim cooler 100 may include multiple injection components. Optionally, the plurality of spraying parts are uniformly distributed on the surface of the box body. Preferably, the trim cooler 100 includes 6 injection components, as shown in fig. 2.

The trim cooler 100 described above may be used for engine testing, particularly testing relating to the radiator of an engine.

In the test preparation phase, the top cover 2 of the adjustable cooler is opened, and then the radiator 40 to be tested is vertically placed and fastened in the box, for example, by using a fastener (not shown). The top cover 2 is then replaced on top of the box and the box is closed. The trim cooler may also comprise at least two

orifices

36, 37 for the passage therethrough of an inlet conduit 41a and an outlet conduit 41b, respectively, of the engine coolant circulating in the radiator 40 for connection to the engine under test (not shown). Optionally, a pressure sensor and/or a temperature sensor may be provided at least one of the two

orifices

36, 37 to measure the pressure and/or temperature of the engine coolant circulating in the radiator.

If desired, test coolant may be introduced into the inlet tank through bypass line 42 and bypass port 34 by closing the first valve prior to testing, such that a quantity of test coolant is injected into the tank.

Optionally, the immersion height of the radiator in the tank body can be adjusted by adjusting the initial liquid level of the cooling liquid in the tank body, so that temperature control is realized.

During the test phase, the engine is operated to simulate actual operating conditions, and engine coolant is circulated between the engine and the radiator 40 to reduce engine temperature. The modulated cooler 100 simulates the situation where the radiator 40 reduces the engine coolant temperature under actual conditions.

If it is desired to cool the radiator 40 to reduce the temperature of the engine coolant, the first valve 35 is opened and test coolant is injected along the first line 16 through the first nozzle 4 to the radiator 40. If a further temperature reduction is required, the second valve 18 is opened and the test coolant can be sprayed further along the second line 17 through the second nozzle 10 to the radiator 40.

Alternatively, the liquid level of the test coolant deposited in the tank may be controlled, and the spray position and cooling efficiency of the coolant may be controlled, thereby controlling the temperature adjustment of the heat sink 40.

When the number of the injection parts is plural, it is also possible to adjust the cooling of the radiator by adjusting the opening and closing of the different injection parts. When the first valves are fully open, the test coolant flows to each first nozzle, spraying (for example at 1bar pressure) onto the radiator surface; when only part of the first valves are opened, the cooling liquid flows into the corresponding first nozzles from the opened first valves to be sprayed; when the second valve is opened, the test coolant is further ejected from the second head, thereby forming a double-layer jet.

The adjustable cooler for the low-temperature radiator test of the engine, disclosed by the invention, abandons air as a cooling medium, and adopts cooling liquid as the cooling medium to cool the radiator, so that the heat dissipation of the radiator can be more efficiently and accurately controlled, the state of the engine in actual use can be better simulated, more valuable data can be obtained, and the improvement of the engine is facilitated to improve the quality of the engine.

Alternatively, the fixing member is configured to move and rotate the heat sink 40 fixed thereto inside the case.

Alternatively, the fixation between the top cover 2 and the housing 1 may be performed without using bolts. Optionally, the upper edge of the housing 1 may be configured with a metal flange (e.g. 8mm in height) to define the position of the top cover 2 to prevent leakage and sliding off.

Alternatively, the top cover 2 may be made at least partially of a transparent material to facilitate operator observation of the operating conditions inside the monitoring cooler during the test.

Optionally, the housing 1 is made of stainless steel material to avoid the problem that the prior art uses aluminum material to cause scale formation, which reduces the service life of the device and affects the test accuracy.

Optionally, the support assembly 3 includes rollers at its bottom to facilitate movement of the adjustable cooler 100.

Optionally, the support assembly 3 comprises a slide extending in a vertical direction to facilitate height adjustment of the tank.

Optionally, the trim cooler 100 further comprises a level sensor, such as the level sensor 25 shown in fig. 2. The liquid level sensor 25 is used for detecting the liquid level height of the cooling liquid for the test in the box body, and when the liquid level height is lower than a preset threshold value, the liquid level sensor 25 sends an alarm signal to an operator.

Optionally, as shown in fig. 2, the adjustable cooler 2 may further comprise a support frame 24 for supporting the main line, and the support frame 24 may be one or more.

As shown in fig. 3, a cooling system according to an embodiment of the present application is shown, comprising at least a trim cooler 100 and an engine. The radiator 40 of the engine to be tested is placed in the trim cooler 100 disclosed in this application. During testing, high temperature gas a enters the intercooler 200 integrated in the engine manifold and is cooled by engine coolant. The engine coolant EC, which has increased in temperature due to the cooling of the high-temperature gas a, is circulated to the radiator 40 to be cooled by the test coolant TC in the conditioning cooler 100. Preferably, the modulated cooler 200 cools the radiator 40 by adjusting the flow and/or distribution of the test coolant TC based on the operating conditions of the radiator 40 during actual operation of the simulated engine. The cooling of the test coolant can be, for example, by industrial coolant FC (e.g., 8 degrees celsius water) in a separate heat exchanger 300.

Although the present application has been described herein with reference to particular embodiments, the scope of the present application is not intended to be limited to the details shown. Various modifications may be made to these details without departing from the underlying principles of the application.

Claims

1. A trim cooler (100) for engine cold radiator testing, comprising:

a box body;

a support assembly (3) connected to and supporting the tank; and

a cooling cycle assembly attached to the case, comprising:

at least one spraying member for spraying a test coolant into the tank, comprising: at least two nozzles (4, 10) located at different heights;

an outlet (33) provided on and penetrating the tank; and

a main line (38) having one end connected to the at least one spray member and the other end connected to the outlet (33), the main line (38) having a test coolant circulated therein;

wherein the at least one injection component further comprises: a first line (16) connecting the main line (38) and one nozzle (4) of the at least two nozzles; and a second line (17) connecting the first line (16) and another nozzle (10) of the at least two nozzles.

2. The adjustable cooler of claim 1, further comprising: a bypass line (42) and a bypass port (34), wherein the bypass port (34) is attached to and communicates into the interior of the tank, the bypass line (42) having one end coupled to the bypass port (34) and another end coupled to the main line (38).

3. The trim cooler of claim 2, characterized in that the trim cooler is configured to utilize a bypass line (42) and a bypass port (34) such that a quantity of test coolant is injected and deposited inside the tank for cooling.

4. The adjustable cooler of claim 3, wherein the adjustable cooler is configured to achieve temperature control by adjusting a level of test coolant within the cooler to adjust a soak height of the radiator within the tank.

5. The conditioning cooler according to claim 3 or 4, further comprising: and the liquid level sensor (25) is used for detecting the liquid level height of the cooling liquid for testing in the tank body, and is configured to send an alarm signal when the liquid level height is lower than a preset threshold value.

6. The conditioning cooler according to any one of claims 1 to 4, wherein the support assembly (3) comprises:

rollers at the bottom of the support assembly to facilitate movement of the adjustable cooler (100); and

a slide way extending along the vertical direction so as to adjust the height of the box body.

7. The conditioning cooler according to any one of claims 1 to 4, further comprising: a first valve (35) mounted on the main line (38) and configured to control the flow of test coolant circulating in the main line (38) to the first line (16).

8. The conditioning cooler according to any one of claims 1 to 4, further comprising: a second valve (18) mounted on the second line (17) and arranged to control the flow of test coolant in the first line (16) to the second line (17).

9. The conditioning cooler according to any one of claims 1 to 4, further comprising: and a third valve provided on the outlet (33) and configured to control discharge of the test coolant deposited inside the tank.

10. The conditioning cooler according to any one of claims 1 to 4, wherein the tank comprises:

a housing (1) made of a stainless steel material; and

a top cover (2) detachably attached to the housing (1) and made at least partially of a transparent material.

11. A cooling system for an engine low temperature radiator test, comprising: the conditioning cooler (100) of any of claims 1 to 10.

12. A cooling system according to claim 11, characterised in that the trim cooler further comprises two apertures (36, 37), at least one of which (36, 37) is provided with a pressure sensor and/or a temperature sensor for measuring the pressure and/or temperature of the engine coolant circulating in the radiator, and that the cooling system further comprises: -a radiator (40) connected to the engine by an inlet conduit (41a) and an outlet conduit (41b), engine cooling circulating between said radiator (40) and the engine, wherein said radiator is located in the tank of a trim cooler, said inlet conduit (41a) and outlet conduit (41b) passing through said two orifices (36, 37) respectively.

13. The cooling system according to claim 12, wherein the cooler further comprises a fixing member configured to be able to move and rotate the radiator (40) fixed thereto inside the case.

14. The cooling system according to claim 11 or 12, further comprising: a controller coupled to the cooler (100), the controller configured to control cooling of the heat sink (40) based on a temperature change of the heat sink (40) during actual use.