Cooling-water machine unit testing equipment

Abstract

The utility model relates to the technical field of test equipment, and discloses water chiller unit test equipment, which comprises a test mechanism, the test mechanism comprises a detection box, a water filter is fixedly arranged on one side inside the detection box, and a pressure sensor is fixedly arranged at the rear end of the water filter. An exhaust electromagnetic valve is fixedly arranged at the rear end of the pressure sensor, a purging electromagnetic valve is fixedly arranged on the other side of the interior of the detection box, a first one-way valve is fixedly arranged on one side of the purging electromagnetic valve, a second one-way valve is fixedly arranged at the rear end of the first one-way valve, and a flow sensor is fixedly arranged at the rear end of the second one-way valve; and a heat exchanger is fixedly arranged at the rear end of the inner bottom surface of the detection box. According to the utility model, the device is provided with a plurality of unit testing devices, so that the multi-aspect detection of the cooling-water machine is facilitated, the practicability of the device is greatly improved, the device is convenient to use, and the arrangement of the testing mechanism and the detection box is beneficial to the testing of the cooling-water machine.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a testing equipment for a chiller unit. Background Art

[0002] In the field of new energy motor testing, the requirements for testing devices are increasing day by day. Especially when conducting motor tests, a chiller that can provide high-precision temperature control and airtightness detection is needed. A chiller is a cooling water equipment that can provide constant temperature, constant flow, and constant pressure. The return water temperature of the chiller should preferably not be higher than 40 degrees. The higher the return water temperature, the greater the damage to the compressor. The operation of the chiller system is through three interrelated systems: the refrigerant circulation system, the water circulation system, and the electrical automatic control system. Chillers are divided into low-temperature chillers and normal-temperature chillers in terms of temperature control. The normal temperature is generally controlled within the range of 0 degrees to 35 degrees, and the low-temperature machine temperature is generally controlled within the range of 0 degrees to about -100 degrees.

[0003] At present, the common chiller testing functions on the market are relatively weak and often cannot meet the requirements of this high-precision control and multi-functional testing. Therefore, the utility model provides a testing equipment for a chiller unit to solve the problems raised in the above background art. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a testing equipment for a chiller unit. This device is provided with multiple unit testing equipments, which is beneficial to multi-faceted detection of the chiller, greatly improves the practicability of this device, and is convenient to use.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A testing equipment for a chiller unit, including a testing mechanism. The testing mechanism includes a detection box. Inside the detection box, a water filter is fixedly arranged at one side position. A pressure sensor is fixedly arranged at the rear end of the water filter. An exhaust solenoid valve is fixedly arranged at the rear end of the pressure sensor.

[0006] A purge solenoid valve is fixedly arranged at the other side position inside the detection box. A first one-way valve is fixedly arranged at one side of the purge solenoid valve. A second one-way valve is fixedly arranged at the rear end of the first one-way valve. A flow sensor is fixedly arranged at the rear end of the second one-way valve. A heat exchanger is fixedly arranged at the rear end position of the inner bottom surface of the detection box.

[0007] Through the above technical solutions, the setting of the test mechanism and the detection box is conducive to testing the chiller, the setting of the water filter is conducive to filtering impurities in the water, the pressure sensor is conducive to monitoring the water pressure and preventing the internal water pressure from being too high, the exhaust solenoid valve is conducive to airtightness detection and also conducive to the discharge of internal gas, the purge solenoid valve is conducive to purging the interior and conducive to purge detection, the setting of the first one-way valve and the second solenoid valve is conducive to controlling the opening and closing of the water source and the air flow, the flow sensor is conducive to continuously monitoring the internal flow rate, and the heat exchanger is conducive to transferring heat from the fluid with a higher temperature to the fluid with a lower temperature.

[0008] Further, a water pump is fixedly arranged at the other position on the front end side of the heat exchanger, and a cooling water solenoid valve is fixedly arranged at the position on the rear end side of the heat exchanger;

[0009] Through the above technical solutions, the water pump is conducive to pressurizing the water source and facilitating the circulation of the water source, and the cooling water solenoid valve is conducive to exchanging the cooling water with the hot water in the heat exchanger.

[0010] Further, return water solenoid valves are fixedly arranged at the rear end of the exhaust solenoid valve and the front end of the flow sensor, and the internal devices of the detection box are all fixedly connected through pipes;

[0011] Through the above technical solutions, the return water solenoid valve is conducive to adjusting the pressure difference between the inlet water and the return water, ensuring the low-noise operation of the heat exchanger and achieving the end hydraulic balance. At the same time, it can also adjust the resistance balance of each heating loop.

[0012] Further, an electric heating tube is fixedly arranged at the lower end position of the inner wall at the rear side of the heat exchanger, and a temperature sensor is fixedly arranged at the middle and lower position of the inner wall at the rear side of the heat exchanger;

[0013] Through the above technical solutions, the setting of the electric heating tube is conducive to assisting in heat control and internal temperature control, and the temperature sensor is conducive to collecting the internal water temperature and transmitting signals.

[0014] Further, mounting plates are fixedly arranged at both sides of the lower end of the detection box, and fixing rods are fixedly arranged on both sides of the detection box;

[0015] Through the above technical solutions, the mounting plates are conducive to stably installing the device on the ground, and the fixing rods are conducive to thread-fixing the chiller body in the middle.

[0016] Further, a chiller body is fixedly arranged in the middle of the two fixing rods;

[0017] Through the above technical solutions, it is conducive to cooperating for detection.

[0018] Further, a protective plate is thread-fixedly arranged at the rear end of the detection box, and fixing pipes are fixedly arranged on both sides of the lower end of the detection box;

[0019] Through the above technical solution, the protective plate facilitates the repair of internal parts after disassembly, and the fixed pipe facilitates the water circulation.

[0020] The utility model has the following beneficial effects:

[0021] 1. A chiller unit testing device proposed by the utility model. Currently, the common chiller testing functions on the market are relatively weak and often cannot meet the requirements of high-precision control and multi-functional testing. This device is provided with multiple unit testing devices, which is conducive to multi-faceted detection of the chiller, greatly improving the practicability of this device and facilitating use. When detecting the airtightness of this device, the system inflates the external connecting pipeline by charging 4 bar of air pressure, closes the outlet solenoid valve, inlet solenoid valve and exhaust solenoid valve, opens the inflation solenoid valve. If the pipeline leaks and the detected pressure drop is greater than the allowable value, the system will issue an alarm. Otherwise, the exhaust solenoid valve is opened to end the airtightness detection.

[0022] 2. A chiller unit testing device proposed by the utility model. During the purging detection, the outlet solenoid valve and the blowing solenoid valve are closed, and the purging solenoid valve is opened to blow air to the tested part. After blowing, the inlet solenoid valve is closed and the air is exhausted to end the blowing. The unit testing system is used to test the performance of the chiller. During the testing process, the inlet and outlet solenoid valves are opened, and the inflation solenoid valve and the exhaust solenoid valve are closed, and water enters the tested part for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the top view axonometric schematic diagram of the utility model;

[0024] Figure 2 is the rear view axonometric schematic diagram of the utility model;

[0025] Figure 3 is the front view axonometric schematic diagram of the utility model;

[0026] Figure 4 is the internal flow schematic diagram of the utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Chiller body; 2. Testing mechanism; 201. Detection box; 202. Fixed pipe; 203. Mounting plate; 204. Protective plate; 205. Fixed rod; 206. Water filter; 207. Pressure sensor; 208. Exhaust solenoid valve; 209. Return water solenoid valve; 210. Purging solenoid valve; 211. First one-way valve; 212. Second one-way valve; 213. Flow sensor; 214. Water pump; 215. Cooling water solenoid valve; 216. Temperature sensor; 217. Electric heating tube; 218. Heat exchanger. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Referring to Figures 1-4 , an embodiment provided by the present utility model: A testing device for a chiller unit includes a testing mechanism 2. The testing mechanism 2 includes a detection box 201. A water filter 206 is fixedly arranged at a position on one side inside the detection box 201. A pressure sensor 207 is fixedly arranged at the rear end of the water filter 206. An exhaust solenoid valve 208 is fixedly arranged at the rear end of the pressure sensor 207. A purge solenoid valve 210 is fixedly arranged at a position on the other side inside the detection box 201. A first one-way valve 211 is fixedly arranged on one side of the purge solenoid valve 210. A second one-way valve 212 is fixedly arranged at the rear end of the first one-way valve 211. A flow sensor 213 is fixedly arranged at the rear end of the second one-way valve 212. A heat exchanger 218 is fixedly arranged at the rear end of the inner bottom surface of the detection box 201.

[0031] The setting of the testing mechanism 2 and the detection box 201 is beneficial to testing the chiller. The setting of the water filter 206 is beneficial to filtering impurities in the water. The pressure sensor 207 is beneficial to monitoring the water pressure and preventing the internal water pressure from being too high. The exhaust solenoid valve 208 is beneficial to performing airtightness detection and also beneficial to discharging internal gas. When performing airtightness detection on this device, the system fills the external connection pipeline with a gas pressure of 4 bar, closes the water outlet solenoid valve, the water inlet solenoid valve and the exhaust solenoid valve 208, opens the inflation solenoid valve, and inflates the external connection pipeline. If the pipeline leaks and the detected pressure drop is greater than the allowable value, the system will issue an alarm. Otherwise, the exhaust solenoid valve 208 is opened to end the airtightness detection. The purge solenoid valve 210 is beneficial to purging the inside and is beneficial to performing purge detection. The settings of the first one-way valve 211 and the second one-way valve 212 are beneficial to controlling the opening and closing of the water source and the air flow. The flow sensor 213 is beneficial to continuously monitoring the internal flow rate. The heat exchanger 218 is beneficial to transferring heat from the fluid with a higher temperature to the fluid with a lower temperature.

[0032] A water pump 214 is fixedly arranged at the other position on the front end side of the heat exchanger 218. A cooling water solenoid valve 215 is fixedly arranged at one position on the rear end side of the heat exchanger 218. A return water solenoid valve 209 is fixedly arranged at the rear end of the exhaust solenoid valve 208 and the front end of the flow sensor 213. All the internal devices of the detection box 201 are fixedly connected through pipelines. An electric heating pipe 217 is fixedly arranged at the lower position on the inner wall at the rear side of the heat exchanger 218. A temperature sensor 216 is fixedly arranged at the middle and lower position on the inner wall at the rear side of the heat exchanger 218. Mounting plates 203 are fixedly arranged at both sides of the lower end of the detection box 201. Fixed rods 205 are fixedly arranged at both sides of the detection box 201. A chiller body 1 is fixedly arranged in the middle of the two fixed rods 205. A protective plate 204 is fixedly arranged at the rear end of the detection box 201 by threading. Fixed pipes 202 are fixedly arranged at both sides of the lower end of the detection box 201.

[0033] The water pump 214 is beneficial to pressurize the water source and is beneficial to the circulation of the water source. The cooling water solenoid valve 215 is beneficial to exchange the cooling water with the hot water in the heat exchanger 218. The return water solenoid valve 209 is beneficial to adjust the pressure difference between the inlet water and the return water, ensure the low-noise operation of the heat exchanger 218 and achieve the terminal hydraulic balance. At the same time, it can also adjust the resistance balance of each heating loop. The setting of the electric heating pipe 217 is beneficial to auxiliary heat control and is beneficial to the internal temperature control. The temperature sensor 216 is beneficial to collect the internal water temperature and transmit signals. The mounting plates 203 are beneficial to stably install this device on the ground. The fixed rods 205 are beneficial to thread-fix the chiller body 1 in the middle. The chiller body 1 is beneficial to cooperate with the detection. The protective plate 204 is beneficial to repair the internal parts after disassembly. The fixed pipes 202 are beneficial to the water flow.

[0034] Working principle: When the airtightness of this device is detected, the system fills the air pressure of 4 bar, closes the outlet solenoid valve, the inlet solenoid valve and the exhaust solenoid valve 208, opens the inflation solenoid valve, and inflates the external connection pipeline. If the pipeline leaks and the detected pressure drop is greater than the allowable value, the system will issue an alarm. Otherwise, the exhaust solenoid valve 208 is opened to end the airtightness detection. During the purging detection, the outlet solenoid valve and the blowing solenoid valve are closed, and the purging solenoid valve 210 is opened to blow the tested part. After blowing is completed, the inlet solenoid valve is closed and purged, and the blowing ends. The unit test system is used to perform performance tests on the chiller. During the test process, the inlet and outlet solenoid valves are opened, and the inflation solenoid valve and the exhaust solenoid valve 208 are closed, and water enters the tested part for testing.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A chiller unit testing device, comprising a testing mechanism (2), characterized in that: The test mechanism (2) includes a detection box (201). Inside the detection box (201), a water filter (206) is fixedly arranged at one side position. A pressure sensor (207) is fixedly arranged at the rear end of the water filter (206). An exhaust solenoid valve (208) is fixedly arranged at the rear end of the pressure sensor (207). A purge solenoid valve (210) is fixedly arranged at the other side position inside the detection box (201). A first one-way valve (211) is fixedly arranged at one side of the purge solenoid valve (210). A second one-way valve (212) is fixedly arranged at the rear end of the first one-way valve (211). A flow sensor (213) is fixedly arranged at the rear end of the second one-way valve (212). A heat exchanger (218) is fixedly arranged at the rear end position of the inner bottom surface of the detection box (201).

2. The testing device for a chiller unit according to claim 1, characterized in that: A water pump (214) is fixedly arranged at the other side position at the front end of the heat exchanger (218). A cooling water solenoid valve (215) is fixedly arranged at one side position at the rear end of the heat exchanger (218).

3. The cold water machine unit testing device according to claim 1, characterized in that: Return water solenoid valves (209) are fixedly arranged at the rear end of the exhaust solenoid valve (208) and the front end of the flow sensor (213). All the internal devices of the detection box (201) are fixedly connected through pipelines.

4. The testing device for a chiller unit according to claim 1, wherein: An electric heating tube (217) is fixedly arranged at the lower end position of the rear inner wall of the heat exchanger (218). A temperature sensor (216) is fixedly arranged at the middle and lower position of the rear inner wall of the heat exchanger (218).

5. The testing device for a chiller unit according to claim 1, wherein: Mounting plates (203) are fixedly arranged at both side positions at the lower end of the detection box (201). Fixing rods (205) are fixedly arranged at both sides of the detection box (201).

6. The testing device for a chiller unit according to claim 5, characterized in that: A chiller body (1) is fixedly arranged at the middle of the two fixing rods (205).

7. The cold water machine unit testing equipment according to claim 1, characterized in that: A protective plate (204) is fixedly arranged at the rear end of the detection box (201) by threading. Fixed pipes (202) are fixedly arranged at both side positions at the lower end of the detection box (201).

Images