CN212340659U - Inter-cooling constant temperature device for engine test - Google Patents
Inter-cooling constant temperature device for engine test Download PDFInfo
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- CN212340659U CN212340659U CN202021270586.0U CN202021270586U CN212340659U CN 212340659 U CN212340659 U CN 212340659U CN 202021270586 U CN202021270586 U CN 202021270586U CN 212340659 U CN212340659 U CN 212340659U
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Abstract
An inter-cooling thermostat for an engine test comprises: the spraying box is suitable for arranging an intercooler inside; one or more spray heads arranged in a spray box to face the intercooler; a temperature-controlled water circulation line configured to pump out temperature-controlled water in the spray tank, adjust the temperature of the temperature-controlled water, and then supply the temperature-controlled water to the spray heads while the spray heads continuously spray; it is characterized in that the temperature control water circulation pipeline comprises: a temperature controlled water supply line to the spray head; a temperature controlled water extraction line from the spray tank, the temperature controlled water extraction line having a pump therein; the heating branch line and the cooling branch line are arranged in parallel; wherein, a heater is arranged in the heating branch line, a heat exchanger is arranged in the cooling branch line, the upstream ends of the heating branch line and the cooling branch line are connected with a temperature-controlled water extraction pipeline, and the downstream ends are connected with a temperature-controlled water supply pipeline.
Description
Technical Field
The application relates to an intercooling constant temperature device for an engine test, which is used for instantly controlling the supercharged air inlet temperature of an engine in a supercharged engine bench test.
Background
For a supercharged engine, an intercooler is required to be arranged between a supercharger and an intake manifold for reducing the temperature of supercharged intake air so as to reduce the heat load of the engine, improve the air intake amount and further increase the power of the engine.
In the development and test process of the supercharged engine, in order to control the temperature of the supercharged intake air entering the engine cylinder, the temperature of the supercharged intake air needs to be controlled, and the supercharged intake air is cooled and cooled usually. In the existing test technology, a method for controlling the temperature after intercooling exists, wherein water in a water storage tank and peripheral chilled water are subjected to heat exchange and temperature reduction through a heat exchanger, the cooled water is pressurized by a water pump and then is sprayed out through a plurality of spray heads through a normally closed electromagnetic valve controlled to be opened and closed by PWM pulse width, the water intermittently sprayed out from the spray heads exchanges heat with the pressurized high-temperature inlet air in an intercooler of the whole vehicle on the surface of the intercooler, the temperature of the air passing through the intercooler is reduced, and finally the function of controlling the temperature of the air after intercooling in the intercooler is achieved.
According to the test technology, when the normally closed electromagnetic valve controlled by the PWM pulse width is opened and closed every time, the temperature of the intercooler of the whole vehicle generates instantaneous square-like waveform fluctuation after intercooling. In addition, the temperature after the intercooler of the whole vehicle intercooler is difficult to accurately control under the condition of low engine load, and the development of performance and calibration tests of some engines is not facilitated.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to provide an improved intercooling thermostat for engine tests, which can effectively and accurately control the temperature of the pressurized intercooled gas without large temperature fluctuation under various test conditions of the engine.
To this end, the present application provides, in one aspect thereof, an intercooling thermostat for engine testing, comprising:
the spraying box is suitable for arranging an intercooler inside;
one or more spray heads arranged in a spray box to face the intercooler;
a temperature-controlled water circulation line configured to pump out temperature-controlled water in the spray tank, adjust the temperature of the temperature-controlled water, and then supply the temperature-controlled water to the spray heads to be continuously sprayed by the spray heads;
wherein, temperature control water circulating line includes:
a temperature controlled water supply line to the spray head;
a temperature controlled water extraction line from the spray tank, the temperature controlled water extraction line having a pump therein; and
the heating branch line and the cooling branch line are arranged in parallel;
wherein, a heater is arranged in the heating branch line, a heat exchanger is arranged in the cooling branch line, the upstream ends of the heating branch line and the cooling branch line are connected with a temperature-controlled water extraction pipeline, and the downstream ends are connected with a temperature-controlled water supply pipeline.
According to one possible embodiment, the engine test intercooler thermostat further comprises a controller; and is
A post-intercooling temperature sensor is disposed in a pressurized gas discharge line of the intercooler, and the controller is configured to adjust the temperature of the temperature-controlled water in the temperature-controlled water circulation line based on a detected temperature of the post-intercooling temperature sensor.
According to a possible embodiment, the heating branch and the cooling branch are connected to the temperature-controlled water supply line by a three-way proportional confluence valve or to the temperature-controlled water extraction line by a three-way proportional diverter valve, and the controller is configured to adjust the temperature-controlled water temperature by adjusting the opening of the three-way proportional confluence valve or the three-way proportional diverter valve.
According to a possible embodiment, the controller is configured to regulate the temperature-controlled water temperature also by regulating the power of the heater.
According to a possible embodiment, the controller is configured to adjust the temperature-controlled water temperature also by adjusting the cooling efficiency of the heat exchanger.
According to a possible embodiment, the controller is configured to adjust the temperature-controlled water flow rate in the temperature-controlled water circulation line also based on the detected temperature of the post-intercooling temperature sensor.
According to one possible embodiment, the pump is a variable flow pump and the controller is configured to adjust the flow rate of the temperature controlled water in the temperature controlled water circulation line by adjusting the flow rate of the pump.
According to one possible embodiment, a flow regulating valve is included in the temperature-controlled water circulation line, and the controller is configured to regulate the flow rate of the temperature-controlled water in the temperature-controlled water circulation line by regulating the opening degree of the flow regulating valve.
According to a possible implementation mode, the intercooling constant-temperature device for the engine test further comprises a water replenishing mechanism; and is
The spraying box is provided with a liquid level sensor for detecting the temperature-controlled water liquid level in the spraying box, and the controller is configured to automatically control the water supplementing mechanism to supplement the temperature-controlled water for the spraying box based on the detection signal of the liquid level sensor.
According to a possible embodiment, the intercooling thermostat device for engine tests further comprises a steam removal mechanism configured to extract steam from the spray tank, condense the steam and then provide the condensed water thus formed back to the spray tank.
According to the method and the device, the temperature of the temperature control water continuously sprayed in a continuous and uninterrupted manner is controlled in a closed loop manner, so that the temperature of the engine after cold cooling can be accurately controlled under various test working conditions, and obvious temperature fluctuation can not be generated.
Drawings
The foregoing and other aspects of the present application will be more fully understood and appreciated by reference to the following detailed description, taken with reference to the accompanying drawings, in which:
FIG. 1 is a schematic illustration of an intercooling thermostat for engine testing according to one embodiment of the present application;
FIG. 2 is a schematic illustration of an intercooling thermostat for engine testing according to another embodiment of the present application;
fig. 3 is a schematic diagram of an intercooling thermostat for engine testing according to yet another embodiment of the present application.
Detailed Description
The application relates to an intercooling constant temperature device for an engine test, which is used in a supercharged engine bench test and is used for immediately controlling the supercharged air inlet temperature of an engine.
The engine charge air is cooled by passing through the intercooler, and therefore the engine charge air temperature is also referred to as the charge air temperature after cooling by the intercooler.
The inter-cooling thermostat for engine tests comprises a controller, such as a programmable PID controller, which is connected with various detection elements and execution elements in the inter-cooling thermostat and is used for controlling the operation of the whole inter-cooling thermostat. One possible implementation of the intercooling thermostat of the present application is shown in the example of fig. 1, where the controller is not shown. As shown in fig. 1, the intercooling thermostat device comprises a spray box 1, which is made of sheet metal and is relatively closed as a whole. In the test, an intercooler 2 of a supercharged engine was arranged in the spray tank 1. The pressurized gas introduction line L1 and the pressurized gas discharge line L2 of the intercooler 2 penetrate the side wall of the shower box 1. The supercharged gas discharge line L2 is provided with a temperature sensor (post-intercooling temperature sensor) 3 for detecting the temperature of the supercharged gas after passing through the intercooler 2.
The intercooler 2 is sprayed with temperature-controlled water in the spray tank 1 to control the temperature of the pressurized gas after passing through the intercooler 2. The spray water is collected to the bottom of the spray tank 1, is extracted from the spray tank 1, undergoes temperature adjustment, and is then sprayed again onto the intercooler 2, thereby realizing the recycling of the temperature-controlled water. A quantity of temperature controlled water needs to be maintained in the spray tank 1 and for this purpose the spray tank 1 is equipped with a level sensor (which may be equipped with an alarm) 4. The controller can determine that the water level in the spraying box 1 is insufficient through the detection signal of the liquid level sensor 4 so as to remind an operator to replenish temperature-controlled water or automatically execute water replenishing operation.
The circulation of the temperature control water is realized through a temperature control water circulation pipeline. The temperature-controlled water circulation pipeline mainly comprises a temperature-controlled water supply pipeline L3 and a temperature-controlled water extraction pipeline L4. A first end of the temperature-controlled water supply line L3 is connected to a corresponding shower head 5 arranged in the shower box 1 through one or more shower head distribution lines L5. The spray heads 5 are directed to the intercooler 2 arranged in the spray tank 1, the spray heads 5 being supplied with temperature-controlled water by respective spray head distribution lines L5. The spray heads 5 may be distributed in a single row at the same height, or may be distributed in multiple rows at different heights.
A first end of the temperature-controlled water extraction line L4 is connected to the shower box 1, and a pump 6 is disposed in the temperature-controlled water extraction line L4 for discharging shower water in the shower box 1. The operation of the pump 6 is controlled by a controller. Alternatively, the pump 6 is a variable flow pump, the flow of which is also controlled by the controller.
The temperature-controlled water supply line L3 and the temperature-controlled water withdrawal line L4 are connected by a heating branch line L6 and a cooling branch line L7 in parallel. Specifically, the second end of the temperature controlled water withdrawal line L4 constitutes a branch point a from which the heating branch line L6 and the cooling branch line L7 originate. The second end of the temperature-controlled water supply line L3 is equipped with a three-way proportional confluence valve 7, the ends of the heating branch line L6 and the cooling branch line L7 are respectively connected to two input ports of the proportional confluence valve 7, and an output port of the proportional confluence valve 7 is connected to the second end of the temperature-controlled water supply line L3. The controller controls the opening of the proportional confluence valve 7, thereby controlling the proportion of the temperature-controlled water amount flowing into the temperature-controlled water supply line L3 through the heating branch line L6 and the cooling branch line L7 (each adjusted between 0 and 100%).
A heater 8 is disposed in the heating branch line L6 for heating the temperature-controlled water flowing through the heating branch line L6. The heater 8 is also controlled by the controller.
A heat exchanger 9 is arranged in the cooling branch line L7 for cooling the temperature-controlled water flowing through the cooling branch line L7. The cooling is achieved by peripherally freezing water. Specifically, the upstream and downstream sections of the cooling branch line L7 are connected to the inlet and outlet of the high temperature side 9a of the heat exchanger 9, respectively, and the peripheral chilled water input line L8 and the peripheral chilled water output line L9 are connected to the inlet and outlet of the low temperature side 9b of the heat exchanger 9, respectively. The peripheral freezing water is low-temperature water, such as low-temperature water at about 7 ℃. An on-off valve 10 and a filter 11 are disposed in the peripheral chilled water input line L8. A switching valve 12 and a flow rate regulating valve 13 are disposed in the peripheral chilled water output line L9. The flow regulating valve 13 may be manually controlled, but is preferably automatically controlled by a controller.
By means of the heat exchanger 9, the temperature-controlled water flowing through the high temperature side 9a is cooled by the peripheral chilled water flowing through the low temperature side 9 b.
The temperature-controlled water circulation line is composed of a temperature-controlled water supply line L3, a temperature-controlled water withdrawal line L4, a heating branch line L6, and a cooling branch line L7.
Optionally, a bleed valve 14 is provided in the temperature controlled water supply line L3 for effecting bleed of the temperature controlled water circulation line.
Further, optionally, a relief valve 15, a flow sensor 16 are provided in the temperature-controlled water supply line L3, and an on-off valve 17 and a filter 18 are provided upstream of the pump 6 in the temperature-controlled water drawing line L4. Further, a drain line L10 may be connected upstream of the pump 6, and the drain line L10 may be provided with an on-off valve 19.
Further, a temperature sensor 20 is provided in a downstream section of the heating branch line L6 for detecting the temperature of the temperature-controlled water after flowing through the heater 8. Optionally, a temperature sensor 21 is provided in the temperature-controlled water supply line L3 for detecting the temperature of the temperature-controlled water input into the temperature-controlled water supply line L3 through the proportional flow-combining valve 7.
Optionally, the temperature-controlled water supply line L3 is equipped with a pressure relief line L11 for relieving pressure to the temperature-controlled water supply line L3 when the pressure in the temperature-controlled water supply line L3 reaches a certain value. The pressure relief line L11 is preferably connected between the temperature-controlled water supply line L3 and the shower tank 1, and is equipped with a pressure sensor 22 and a pressure relief valve 23. It is noted that alternatively, the pressure sensor 22 may be provided in the temperature-controlled water supply line L3. The detection value of the pressure sensor 22 reflects the pressure in the temperature-controlled water supply line L3, regardless of whether it is provided in the temperature-controlled water supply line L3 or the pressure relief line L11.
Alternatively, the shower box 1 is provided with a water discharge line L12, and the water discharge line L12 is provided with a water discharge on-off valve 24. The water discharge line L12 is connected to the bottom of the spray box 1 and is used for discharging the temperature control water in the spray box 1.
The controller controls the operation of the pump 6. In the case where the pump 6 is a variable flow pump, the controller can directly control the flow rate thereof, i.e., the flow rate of the temperature controlled water flowing through the temperature controlled water circulation line. In the case where the pump 6 is a fixed displacement pump, a flow regulating valve (not shown) may be provided in the temperature-controlled water supply line L3 or the temperature-controlled water extraction line L4, so that the controller can control the flow rate of the temperature-controlled water flowing through the temperature-controlled water circulation line by controlling the opening degree of the flow regulating valve.
Further, the temperature-controlled water supply line L3 and the temperature-controlled water extraction line L4 are connected by a heating branch line L6 and a cooling branch line L7 in parallel. The flow rate ratio of the temperature-controlled water flowing through the heating branch line L6 and the cooling branch line L7 can be controlled by controlling the proportional flow-combining valve 7.
The controller can control the operation (activation and power) of the heater 8 based on the detected temperature of the temperature sensor 20 so that the temperature controlled water flowing through the heater 8 has a desired temperature. Furthermore, the controller is optionally able to control the operation of the heat exchanger 9, for example by controlling the flow of the flow regulating valve 13.
Further, the controller can control the operation of the heater 8 (optionally, also the operation of the heat exchanger 9) and the opening degree (flow rate ratio) of the proportional flow-combining valve 7 based on the detected temperature of the temperature sensor 3 and make adjustments in real time so that the temperature-controlled water flowing to the shower head 5 through the temperature-controlled water supply line L3 has a desired temperature. The temperature of the sprayed water sprayed by the spray head 5 is controlled and adjusted so that the pressurized gas discharged from the pressurized gas discharge line L2 reaches and maintains a desired temperature. In this way, closed loop control of engine boost air-intake temperature is achieved by the controller.
In addition, optionally, the controller also controls the flow rate of the spray water based on the detection signal of the flow sensor 16, and auxiliary control on the supercharged intake air temperature of the engine can also be realized.
In the case of being equipped with the temperature sensor 21, the detection signal of the temperature sensor 21 may be employed by the controller to effect control of the operation of the heater 8 (and optionally the operation of the heat exchanger 9), the opening degree (flow rate ratio) of the proportional combining valve 7.
In a supercharged engine bench test, the intercooling thermostat of the present application starts. The controller controls the pump 6 to operate so as to draw temperature-controlled water from the spray box 1 through the temperature-controlled water drawing line L4, the temperature-controlled water flows through the temperature-controlled water supply line L3 and then is input to the spray heads 5 through the spray head distribution line L5, and is sprayed on the intercooler 2, thereby cooling the intercooler 2. Meanwhile, the controller controls the flow of the temperature control water flowing through the temperature control water circulation pipeline, namely the spraying water flow sprayed through the spray head 5.
The temperature of the supercharged air discharged from the intercooler 2 through the supercharged air discharge line L2 is detected by the temperature sensor 3. The controller controls the spray water temperature (and, optionally, the spray water flow rate) based on the detected temperature of the temperature sensor 3 to maintain the supercharged gas temperature (post-intercooling temperature) at a desired value.
In the whole supercharged engine bench test, the controller controls the temperature-controlled water to be continuously sprayed on the intercooler 2 instead of pulse spraying (namely, any normally closed electromagnetic valve for realizing pulse spraying is not arranged), so that square-wave-like fluctuation of the temperature of the supercharged gas can be avoided.
The controller achieves closed loop control of the pressurized gas temperature by controlling the spray water temperature (and optionally also the spray water flow). The shower water temperature is mainly achieved by controlling the opening degree of the proportional confluence valve 7, thereby controlling the proportion of the temperature-controlled water flowing through the heating branch line L6 and the cooling branch line L7.
When the temperature of the pressurized gas needs to be increased (especially during low-load engine operation), the controller controls the opening degree of the proportional confluence valve 7 so that more (or even all) temperature-controlled water flows through the heating branch line L6, thereby adjusting the temperature of the spray water to achieve the temperature adjustment of the pressurized gas. At this time, the controller also controls the power of the heater 8. Optionally, the controller also reduces the cooling efficiency of the heat exchanger 9, for example by reducing the flow of peripheral chilled water.
When the temperature of the pressurized gas needs to be reduced (especially when the engine runs at low load and high load), the controller controls the opening degree of the proportional flow-combining valve 7, so that more (even all) temperature-controlled water flows through the cooling branch line L7, and the temperature of the spray water is adjusted, so as to realize the temperature adjustment of the pressurized gas. At this time, optionally, the controller increases the cooling efficiency of the heat exchanger 9, for example, by increasing the flow rate of the peripheral chilled water. At the same time, the controller controls the heater 8 to stop heating.
Note that there is an operating state in which the temperature-controlled water flows through only the heating branch line L6 or only the cooling branch line L7.
Furthermore, the controller may additionally regulate the pressurized gas temperature by controlling the spray water flow.
It will be appreciated that the three-way proportional junction valve 7 may be replaced by a three-way proportional diverter valve provided at the branch point a of the temperature-controlled water withdrawal line L4, as well as being able to function to distribute the flow rate proportion of the temperature-controlled water between the heating branch line L6 and the cooling branch line L7.
The controller controls the temperature of the spray water (optionally, also controls the flow rate of the spray water) based on the detected temperature of the temperature sensor 3 to accurately and stably maintain the supercharged gas temperature (post-intercooling temperature) at a desired value.
According to a further embodiment of the present application, a water replenishing mechanism is added to the embodiment shown in fig. 1, as shown in fig. 2. The water replenishing mechanism includes a water storage tank 25 containing temperature-controlled water, which is connected to the shower box 1 through a water replenishing line L13. The water supply line L13 is provided with a pump 26, a filter 27 and an on-off valve 28 upstream of the pump 26, and a normally closed two-way valve 29 downstream of the pump 26.
Furthermore, the water storage tank 25 is equipped with a visual level gauge 30 and a level sensor (which may be equipped with an alarm) 31. The water storage tank 25 is further equipped with a water inlet line L14 with an on-off valve 32 and a water discharge line L15 with an on-off valve 33.
The controller may automatically control the operation of the pump 26 and the normally closed two-way valve 29 based on the detection signal of the level sensor 4 to activate the pump 26 when the amount of temperature-controlled water in the shower tank 1 is insufficient, so as to automatically replenish the shower tank 1 with temperature-controlled water.
According to a further embodiment of the present application, a steam removal mechanism is added to the embodiment shown in fig. 1, as shown in fig. 3. The steam removal mechanism includes a heat exchanger 34, an inlet of a high temperature side 34a of the heat exchanger 34 is connected to an upper portion of the shower box 1 through a steam line L16, and an outlet of the high temperature side 34a is connected to the inside of the shower box 1 through a return line L17. Arranged in the steam line L16 is an extraction device 35, such as a centrifugal fan, an air amplifier or the like, for extracting steam from the spray box 1. The vapor enters heat exchanger 34 to be condensed and then flows back to spray box 1 via return line L17. A gas-water separator 36 is disposed in return line L17 for venting any gas present in return line L17 from return line L17 to prevent entry into spray box 1.
The inlet and outlet of the low temperature side 34b of the heat exchanger 34 are connected to a peripheral chilled water input line L18 and a peripheral chilled water output line L19, respectively, such that peripheral chilled water is supplied to the low temperature side 34b of the heat exchanger 34 to effect condensation of steam by heat exchange with steam in the high temperature side 34 a. The peripheral chilled water input line L18 is provided with an on-off valve 37 and a filter 38, and the peripheral chilled water output line L19 is provided with an on-off valve 39.
Through removing steam mechanism, can maintain certain negative pressure in spray box 1, avoid steam to leak from spray box and pollute the laboratory environment.
According to a further embodiment (not shown) of the present application, the water supplement mechanism shown in fig. 2 and the steam removal mechanism shown in fig. 3 may be added simultaneously on the basis of the embodiment shown in fig. 1.
Various adaptations and modifications may be made by those skilled in the art to the engine test intercooler thermostat of the present application.
According to the method and the device, the temperature and the flow of the temperature control water continuously and uninterruptedly sprayed are controlled in a closed loop mode, the temperature after the intercooler of the whole vehicle is continuously controlled in the closed loop mode, the temperature after the intercooler of the engine can be accurately controlled within +/-0.5 ℃ under various test working conditions even under a low-load test working condition, and obvious temperature fluctuation can not be generated.
Although the present application has been described herein with reference to specific exemplary 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 (10)
1. An inter-cooling thermostat for engine tests, comprising:
the spraying box (1) is suitable for arranging an intercooler (2) therein;
one or more spray heads (5) arranged in the spray tank (1) facing the intercooler (2);
a temperature-controlled water circulation line configured to pump out temperature-controlled water in the spray tank (1), adjust the temperature of the temperature-controlled water, and then supply the temperature-controlled water to the spray heads (5) to be continuously sprayed by the spray heads (5);
it is characterized in that the temperature control water circulation pipeline comprises:
a temperature controlled water supply line (L3) leading to the spray head;
a temperature-controlled water extraction line (L4) starting from the spray box (1), wherein a pump (6) is arranged in the temperature-controlled water extraction line (L4); and
a heating branch (L6) and a cooling branch (L7) arranged in parallel;
wherein, a heater (8) is arranged in the heating branch line (L6), a heat exchanger (9) is arranged in the cooling branch line (L7), the upstream ends of the heating branch line (L6) and the cooling branch line (L7) are connected with a temperature-controlled water extraction line (L4), and the downstream end is connected with a temperature-controlled water supply line (L3).
2. The intercooling thermostat for engine testing as claimed in claim 1, further comprising a controller; and is
A post-intercooling temperature sensor (3) is arranged in a pressurized gas discharge line (L2) of the intercooler (2), and the controller is configured to adjust the temperature of the temperature-controlled water in the temperature-controlled water circulation line based on the detected temperature of the post-intercooling temperature sensor (3).
3. The intercooling thermostat device for engine tests as claimed in claim 2, characterized in that the heating branch (L6) and the cooling branch (L7) are connected to the temperature-controlled water supply line (L3) through a three-way proportional confluence valve (7) or to the temperature-controlled water withdrawal line (L4) through a three-way proportional diversion valve, and the controller is configured to adjust the temperature of the temperature-controlled water by adjusting the opening degree of the three-way proportional confluence valve (7) or the three-way proportional diversion valve.
4. The intercooling thermostat device for engine testing as claimed in claim 3, characterized in that the controller is configured to adjust the temperature-controlled water temperature also by adjusting the power of the heater (8).
5. The intercooling thermostat device for engine testing as claimed in claim 3, characterized in that the controller is configured to adjust the temperature-controlled water temperature also by adjusting the cooling efficiency of the heat exchanger (9).
6. The inter-cooling thermostat device for engine testing as defined in claim 2, characterized in that the controller is configured to adjust the temperature-controlled water flow rate in the temperature-controlled water circulation line also based on the detected temperature of the post-inter-cooling temperature sensor (3).
7. The inter-cooler thermostat device for engine tests as claimed in claim 6, characterized in that the pump (6) is a variable flow pump, the controller being configured to adjust the temperature-controlled water flow in the temperature-controlled water circulation line by adjusting the flow of the pump.
8. The intercooling thermostat device for engine testing as claimed in claim 6, wherein the temperature-controlled water circulation line includes a flow regulating valve therein, and the controller is configured to adjust a flow rate of the temperature-controlled water in the temperature-controlled water circulation line by adjusting an opening degree of the flow regulating valve.
9. The inter-cooling thermostat device for engine tests as claimed in claim 2, characterized by further comprising a water replenishing mechanism; and is
The spraying box (1) is provided with a liquid level sensor (4) for detecting the temperature control water liquid level in the spraying box (1), and the controller is configured to automatically control the water supplementing mechanism to supplement the temperature control water for the spraying box (1) based on the detection signal of the liquid level sensor (4).
10. The intercooling thermostat device for engine tests as claimed in any one of claims 1 to 9, characterized by further comprising a steam removal mechanism configured to extract steam from the spray tank (1), condense the steam and then provide the condensate thus formed back to the spray tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021270586.0U CN212340659U (en) | 2020-07-01 | 2020-07-01 | Inter-cooling constant temperature device for engine test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021270586.0U CN212340659U (en) | 2020-07-01 | 2020-07-01 | Inter-cooling constant temperature device for engine test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253778A (en) * | 2021-05-17 | 2021-08-13 | 中国第一汽车股份有限公司 | Engine bench test temperature boundary control system, method and storage medium |
| CN113588261A (en) * | 2021-08-05 | 2021-11-02 | 内蒙古上海庙矿业有限责任公司 | Belt temperature protection test device and method |
| CN115574348A (en) * | 2021-07-05 | 2023-01-06 | 中国航发商用航空发动机有限责任公司 | Gas spraying system, thermal shock fatigue tester and gas spraying cooling method |
-
2020
- 2020-07-01 CN CN202021270586.0U patent/CN212340659U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253778A (en) * | 2021-05-17 | 2021-08-13 | 中国第一汽车股份有限公司 | Engine bench test temperature boundary control system, method and storage medium |
| CN115574348A (en) * | 2021-07-05 | 2023-01-06 | 中国航发商用航空发动机有限责任公司 | Gas spraying system, thermal shock fatigue tester and gas spraying cooling method |
| CN115574348B (en) * | 2021-07-05 | 2023-11-17 | 中国航发商用航空发动机有限责任公司 | Gas spraying system, thermal shock fatigue tester and gas spraying cooling method |
| CN113588261A (en) * | 2021-08-05 | 2021-11-02 | 内蒙古上海庙矿业有限责任公司 | Belt temperature protection test device and method |
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