Device for detecting boiling point of engine coolant

Abstract

The utility model discloses an engine coolant boiling point detection device, which comprises a test unit, a control display unit and a pressurization unit, the test unit comprises a container, a heater, a temperature sensor and a top end plate, the control display unit comprises a control display, and the pressurization unit comprises a pressurization pump and a pressure sensor; the container is arranged on the heater, the top end plate is arranged on the container, an air inlet hole and a pressure relief hole are formed in the top end plate, the air inlet hole is communicated with the pressure pump, and the temperature sensor and the pressure sensor are arranged in the container and are in communication connection with the control display. According to the utility model, the controller and the pressurization unit are arranged to adjust different pressures, so that the working condition of the engine cooling system in a pressurization state during actual operation can be simulated, the boiling point of the engine cooling liquid under different pressures can be tested, and the device is simple in structure, convenient to operate, practical and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of engine coolant testing, and particularly relates to an engine coolant boiling point detection device. Background Technique

[0002] The testing device for the boiling point of engine coolant under different pressures in a pressurized state is used to simulate and test the boiling point of the coolant under the normal working conditions of the engine cooling system. The standard testing method for the boiling point of engine coolant is SH / T 0089 "Determination Method for the Boiling Point of Engine Coolant". This method tests the equilibrium boiling point of the engine coolant under normal pressure. The engine cooling system is a forced water circulation system. In actual applications, the engine coolant circulates under a certain pressure. Generally, the water circulation pressure of the cooling system of a fuel vehicle is 15 psi. The existing instrument in SH / T 0089 "Determination Method for the Boiling Point of Engine Coolant" can only test the boiling point under normal pressure and cannot test the boiling point under a fixed pressure. Content of the Utility Model

[0003] Purpose of the utility model: The purpose of the utility model is to provide an engine coolant boiling point detection device that is simple to operate, practical and reliable and can test the boiling point of the coolant under different pressures.

[0004] Technical solution: An engine coolant boiling point detection device of the utility model includes a testing unit, a control and display unit, and a pressurizing unit. The testing unit includes a container, a heater, a temperature sensor, and a top plate. The control and display unit includes a control display. The pressurizing unit includes a pressurizing pump and a pressure sensor. The container is arranged on the heater, the top plate is arranged on the container, the top plate is provided with an air inlet hole and a pressure relief hole. The air inlet hole is communicated with the pressurizing pump. The temperature sensor and the pressure sensor are arranged in the container, and the temperature sensor and the pressure sensor are in communication connection with the control display.

[0005] Further, a first electromagnetic valve is arranged on the pipeline connecting the air inlet hole and the pressurizing pump, and the first electromagnetic valve is in communication connection with the control display.

[0006] Further, the pressure relief hole is communicated with the outside of the container, and a second electromagnetic valve is arranged on the connecting pipeline, and the second electromagnetic valve is in communication connection with the control display.

[0007] Further, the pressurizing pump is communicated with the air inlet hole through a quick connector.

[0008] Further, a sealing ring is arranged between the container and the top plate.

[0009] Further, several columns are arranged around the heater. The upper part of the column has threads, and corresponding holes are arranged on the top plate. The top plate is fixed on the column by bolts and fits with the top of the container.

[0010] Further, a safety cover is provided outside the test unit, and the safety cover is made of plexiglass with a thickness of 4 mm - 5 mm.

[0011] Further, the container is made of transparent glass, and the top plate is made of stainless steel.

[0012] Further, zeolite is placed in the container to prevent bumping.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following advantages: (1) The utility model is provided with a controller and a pressurizing unit to adjust different pressures, so as to simulate the working conditions under the pressurized state during the actual operation of the engine cooling system and test the boiling points of the engine coolant under different pressures; (2) The utility model adopts the form of separating the top cover from the container, and cooperates with the safety cover and zeolite to prevent explosion due to excessive pressure and improve the safety of equipment operation; (3) The utility model has a simple structure, is convenient to operate, and is practical and reliable. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top plate structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the container structure of the utility model. Detailed Embodiments

[0017] The technical solution of the utility model will be further described below with reference to the drawings.

[0018] An engine coolant boiling point detection device of the present application, as shown in the figure, includes a test unit, a control display unit, and a pressurization unit. The test unit includes a container 1, a heater 2, a temperature sensor 3, and a top plate 4. The control display unit includes a control display 5. The pressurization unit includes a pressurization pump 6 and a pressure sensor 7. The container 1 is arranged on the heater 2, the top plate 4 is arranged on the container 1, and the top plate 4 is provided with an air inlet hole 41 and a pressure relief hole 42 for pressurization during the test process and pressure relief after exceeding the set pressure. The air inlet hole 41 is connected to the pressurization pump 6 through a quick connector. A first solenoid valve 8 is provided on the pipeline connecting the air inlet and the pressurization pump 6. The pressure relief hole 42 is connected to the outside of the container 1, and a second solenoid valve 9 is provided on the connecting pipeline. The first solenoid valve 8 and the second solenoid valve 9 are communicatively connected to the control display 5. The temperature sensor 3 and the pressure sensor 7 are arranged inside the container 1, and the temperature sensor 3 and the pressure sensor 7 are communicatively connected to the control display 5. The switch of the pressurization pump 6 can be controlled through the control display 5, and the pressure during the boiling point test process can be set. When the pressure in the glass container exceeds the set pressure during the test process, the controller controls the opening of the solenoid valve 1 to slowly relieve the pressure through the controller, so as to keep the glass container maintained at the set pressure. The control display unit can display the boiling point of the test sample. A sealing ring is provided between the container 1 and the top plate 4. Several columns are provided around the heater 2. The upper part of the column has threads, and corresponding holes 43 are provided on the top plate 4. The top plate 4 is fixed on the column by bolts and fits with the top of the container 1 to achieve the seal between the top plate 4 and the container 1. A safety cover is provided outside the test unit.

[0019] In some embodiments, the safety cover is made of plexiglass with a thickness of 4 mm - 5 mm, the container 1 is made of transparent heat-resistant glass, and the top plate 4 is made of stainless steel.

[0020] In some embodiments, the heater 2 uses an electric heater with 200 W and 220 V.

[0021] During the test, the following method is adopted:

[0022] The first step: Pour 300 mL of the sample into the glass container 1, and add 4 - 6 zeolite particles to prevent bumping.

[0023] The second step: Place the glass container 1 on the heater 2, place a rubber gasket on the glass container 1, and then install a rubber washer above the glass container 1. The top plate 4 is tightly attached to the opening of the container 1 through the column by bolts to achieve sealing.

[0024] The third step: Connect the air inlet 41 of the top plate 4 to the pressurization pump 6 through a quick connector, and connect the pressure relief hole of the top plate 4 to the second solenoid valve 9 through an air pipe.

[0025] Step 4: Turn on the power switch on the control display 5, set the test pressure, and then turn on the switches of the pressure pump 6 and the heater 2 to start the test.

[0026] Step 5: Observe the state of the liquid in the glass container 1. After the liquid starts to boil, continue to observe for 10 minutes. After the temperature on the control display 5 stabilizes, record the displayed temperature, which is the boiling point of the coolant under this pressure.

Claims

1. An engine coolant boiling point detection device, characterized in that, It includes a test unit, a control and display unit, and a pressurizing unit. The test unit includes a container (1), a heater (2), a temperature sensor (3), and a top plate (4). The control and display unit includes a control display (5). The pressurizing unit includes a pressurizing pump (6) and a pressure sensor (7). The container (1) is arranged on the heater (2), the top plate (4) is arranged on the container (1), the top plate (4) is provided with an air inlet hole (41) and a pressure relief hole (42). The air inlet hole (41) is communicated with the pressurizing pump (6). The temperature sensor (3) and the pressure sensor (7) are arranged in the container (1), and the temperature sensor (3) and the pressure sensor (7) are communicatively connected with the control display (5).

2. The engine coolant boiling point detection device according to claim 1, wherein, A first solenoid valve (8) is arranged on the pipeline where the air inlet hole is communicated with the pressurizing pump (6), and the first solenoid valve (8) is communicatively connected with the control display (5).

3. The engine coolant boiling point detection device according to claim 2, wherein, The pressure relief hole (42) is communicated with the outside of the container (1), and a second solenoid valve (9) is arranged on the communicating pipeline. The second solenoid valve (9) is communicatively connected with the control display (5).

4. An engine coolant boiling point detection device according to claim 3, characterized in that, The pressurizing pump (6) is communicated with the air inlet hole (41) through a quick connector.

5. The engine coolant boiling point detection device according to claim 1, characterized in that, A sealing ring is arranged between the container (1) and the top plate (4).

6. An engine coolant boiling point detection device according to claim 1 or 5, characterized in that, Several columns are arranged around the heater (2). The upper parts of the columns have threads. Corresponding holes (43) are arranged on the top plate (4). The top plate (4) is fixed on the columns by bolts and fits with the top of the container (1).

7. The engine coolant boiling point detection device according to claim 1, wherein, A safety cover is arranged outside the test unit. The safety cover is made of plexiglass with a thickness of 4 mm - 5 mm.

8. The engine coolant boiling point detection device according to claim 1, characterized in that, The container (1) is made of transparent glass, and the top plate (4) is made of stainless steel.

9. The engine coolant boiling point detection device according to claim 1, wherein Zeolite is placed in the container (1).

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