Multifunctional water lubrication cooling test system

Abstract

The utility model relates to a multifunctional water lubrication cooling test system, which comprises a silt water supply system, a silt water replenishing system, a water temperature control system, a clear water supply system, a lubrication cooling water control loop and a control box, and is characterized in that the silt water supply system and the clear water supply system are respectively connected with tested water lubrication equipment through the lubrication cooling water control loop; the silt water supply system is connected with the silt water replenishing system, a water temperature control system is also connected between the silt water supply system and the clear water supply system, and the control box is respectively connected with the silt water supply system, the silt water replenishing system, the water temperature control system, the clear water supply system and the lubrication cooling water control loop. The system can simulate comprehensive water lubrication cooling working conditions such as clear water and sediment water, can freely control switching of the clear water and the sediment water and parameters or working conditions such as water flow, pressure and water temperature, and meets equipment performance test and verification requirements of water lubrication equipment under different water lubrication cooling medium working conditions.

Description

Technical Field

[0001] The utility model relates to a water-lubricated stern shaft sealing device and a water-lubricated bearing for a ship power propulsion system, in particular to a water-lubricated cooling test system for the water-lubricated stern shaft sealing device and the water-lubricated bearing of the ship power propulsion system. Background Technique

[0002] The water-lubricated stern shaft sealing device and the water-lubricated bearing are two important shafting devices in the ship power propulsion system. The water-lubricated stern shaft sealing device is used for sealing the part where the ship shafting for propeller propulsion passes through the stern tube to isolate seawater from entering the cabin; the water-lubricated bearing is used to support the radial load of the shafting to ensure the reliable operation of the shafting. Therefore, the performance of these two types of devices has an important impact on the overall performance of the ship power propulsion system. It is necessary to conduct sufficient experimental verification on the performance of these two types of devices before putting them into use to ensure the service performance of the devices after installation on the ship. Both types of devices are lubricated and cooled with water. The closed lubrication and cooling system uses relatively clean fresh water (hereinafter referred to as "clean water") to lubricate and cool the above two types of devices, and the open lubrication and cooling system uses seawater containing a certain particle size (hereinafter referred to as "silt water") to lubricate and cool the above two types of devices. Therefore, it is necessary to test the performance of these two types of devices in the working environments of clean water and silt water before installation on the ship to verify whether the design and usage requirements of the devices are met. Currently, clean water is mainly directly replaced by tap water for testing the performance of these two types of devices under clean water conditions; silt water is mainly prepared by adding corresponding granular substances to clean water according to certain particle size requirements or directly using natural seawater instead, and the original clean water control system is directly used to simulate the silt water conditions for testing the performance of these two types of devices. The above water-lubricated cooling system has the following deficiencies: clean water and silt water cannot be freely switched, the consumed silt water cannot be replenished in time, and it takes time and effort to clean the pipeline, valve parts and other equipment in the lubrication and cooling system after changing silt water to clean water before restoring the clean water lubrication and cooling use, etc.

[0003] In view of the operating characteristics of the ship water-lubricated stern shaft sealing device and the water-lubricated bearing, it is necessary to design a multifunctional water-lubricated cooling test system to simulate the usage conditions of the above two types of devices or other similar water-lubricated devices under actual ship conditions, and can freely control the switching between clean water and silt water and parameters or conditions such as water flow rate, pressure, and water temperature, and verify the device performance of the water-lubricated devices under clean water, silt water and complex lubrication and cooling conditions to meet the verification requirements of actual ship equipment. Summary of the Invention

[0004] To simulate the actual ship water lubrication and cooling operating conditions of ship water-lubricated stern shaft sealing devices, water-lubricated bearings and other similar water-lubricated equipment, and to complete the equipment performance of water-lubricated equipment under clear water, sediment water and complex lubrication and cooling conditions before actual ship installation, the present utility model proposes a multi-functional water lubrication and cooling test system. This system can simulate comprehensive water lubrication and cooling conditions such as clear water and sediment water, and can freely control the switching between clear water and sediment water, as well as parameters or conditions such as water flow rate, pressure, and water temperature, to meet the equipment performance test and verification requirements of water-lubricated equipment under different water lubrication and cooling medium conditions.

[0005] To achieve the above object, the technical solution of the present utility model is: a multi-functional water lubrication and cooling test system, including a sediment water supply system, a sediment water replenishment system, a water temperature control system, a clear water supply system, a lubricating cooling water control circuit, and a control box. The sediment water supply system and the clear water supply system are respectively connected to the water-lubricated equipment to be tested through the lubricating cooling water control circuit. The sediment water supply system is connected to the sediment water replenishment system. A water temperature control system is also connected between the sediment water supply system and the clear water supply system. The control box is respectively connected to the sediment water supply system, the sediment water replenishment system, the water temperature control system, the clear water supply system, and the lubricating cooling water control circuit.

[0006] Further, the sediment water supply system includes a sediment water tank, mixer one, mixer two, level gauge one, temperature sensor one, overflow pipe one, variable frequency water pump one, variable frequency water pump two, pressure gauge one, pressure gauge two, solenoid valve one, drain valve one, electric ball valve one, electric ball valve two, safety valve one, stop check valve one, stop check valve two, and stop valve three. The sediment water tank is provided with mixer one, mixer two, level gauge one, temperature sensor one, and overflow pipe one. The upper part of the sediment water tank is connected to the sediment water return pipe, the temperature control water return pipe one, and is connected to the supply pipe through solenoid valve one. The lower part of the sediment water tank is respectively connected to the temperature control water supply pipe one and the sediment water replenishment pipe, and is connected to the sediment water supply pipe through electric ball valve one, variable frequency water pump one, pressure gauge one, stop check valve two and through electric ball valve two, variable frequency water pump two, pressure gauge two, stop check valve one. The sediment water supply pipe is connected to the lower part of the sediment water tank through stop valve three, and is connected to the upper part of the sediment water tank through safety valve one.

[0007] Further, the sediment water replenishment system includes a spare storage tank, mixer three, level gauge two, variable frequency water pump three, pressure gauge three, drain valve two, ball valve one, stop check valve four. The spare storage tank is provided with mixer three and level gauge two. The lower part of the spare storage tank is successively connected to the spare sediment water pipe through ball valve one, variable frequency water pump three, pressure gauge three, and stop check valve four.

[0008] Further, the water temperature control system includes a variable-frequency water pump IV, a pressure gauge IV, a cold and hot water treatment device, ball valves II to VI, electric control ball valves I to IV, and a filter; the temperature-controlled water supply pipe I of the sediment water supply system is connected to the temperature-controlled water supply pipe II of the clean water supply system through ball valve IV, electric control ball valve I, and electric control ball valve II to form a temperature-controlled water supply main pipe. The temperature-controlled water return pipe I of the sand water supply system is connected to the temperature-controlled water return pipe II of the clean water supply system through electric control ball valve III and electric control ball valve IV to form a temperature-controlled water return main pipe. A cold and hot water treatment circuit composed of electric control ball valve I, variable-frequency water pump IV, pressure gauge IV, ball valve VI, and cold and hot water treatment device is connected between the temperature-controlled water supply main pipe and the temperature-controlled water return main pipe.

[0009] Further, the clean water supply system includes a clean water tank, a liquid level gauge III, a temperature sensor II, an overflow pipe II, variable-frequency water pumps V and VI, pressure gauges V and VI, a solenoid valve II, a drain valve, ball valves VII to X, electric ball valves III and IV, a safety valve II, a stop check valve V, a stop check valve VI, and a stop valve I. The clean water tank is provided with a liquid level gauge III, a temperature sensor II, and an overflow pipe II. The upper part of the clean water tank is connected to the clean water return pipe and the temperature-controlled water return pipe II, and is connected to the supply pipe through a solenoid valve II. The lower part of the clean water tank is connected to the temperature-controlled water supply pipe II through ball valve VII, and is divided into two paths after passing through ball valve VIII, ball valve IX, or ball valve X. One path is connected to the clean water supply pipe through electric ball valve III, variable-frequency water pump V, and stop check valve V, and the other path is connected to the clean water supply pipe through electric ball valve IV, variable-frequency water pump VI, and stop check valve VI. The clean water supply pipe is connected to the lower part of the clean water tank through stop valve I and to the upper part of the clean water tank through safety valve II.

[0010] Further, the lubricating cooling water control circuit includes a return water pressure sensor, an inlet water pressure sensor, a flow meter, stop valves II and III, electric control ball valves V to IX, and a proportional back pressure valve. The inlet end of the lubricating equipment to be tested with water is connected to the sediment water supply pipe through stop valve III, inlet water pressure sensor, and flow meter, and is respectively connected to the clean water supply pipe through electric control ball valve VIII; the return end of the lubricating equipment to be tested with water passes through stop valve II, return water pressure sensor, proportional back pressure valve, or electric control ball valve V and is respectively connected to the sediment water return pipe through electric control ball valve VI and to the clean water return pipe through electric control ball valve VII.

[0011] Further, electric control ball valves VI to IX are used to control the selection of the types of lubricating cooling water entering and leaving the lubricating equipment to be tested with water; electric control ball valve V and proportional back pressure valve are used to control the return water pressure of the lubricating equipment to be tested with water and simulate the working pressure of the lubricating equipment to be tested with water. The return water pressure sensor and the inlet water pressure sensor are respectively used to measure the pressures of the lubricating cooling water entering and leaving the lubricating equipment to be tested with water; the flow meter is used to measure the flow rate of the lubricating cooling water.

[0012] The beneficial effects of the present utility model are:

[0013] The multi-functional water lubrication and cooling test system of the present utility model adopts a sediment-laden water supply system and a sediment-laden water make-up system, which can stably supply lubricating and cooling sediment-laden water medium with specified flow rate, water temperature and meeting requirements such as particle size to the water lubrication equipment to be tested; the test system adopts a clear water supply system, which can stably supply lubricating and cooling clear water medium with specified flow rate, water temperature and other requirements to the water lubrication equipment to be tested; the test system adopts a water temperature control system to realize the control of the water temperature of clear water or sediment-laden water for lubrication and cooling, meeting the verification requirements of different water temperature working conditions of the water lubrication equipment to be tested; the test system adopts a lubricating cooling water control circuit, which can realize the control of the selection of lubricating cooling water types, and at the same time control the return water pressure of the water lubrication equipment to be tested, simulating the working pressure of the water lubrication equipment to be tested; the test system adopts a control box, and the control system in the control box is used to monitor the electric control components such as pumps, valves and sensors in the sediment-laden water supply system, sediment-laden water make-up system, water temperature control system, clear water supply system and lubricating cooling water control circuit, realizing the free control of the switching between clear water and sediment-laden water and parameters or working conditions such as water flow rate, pressure and water temperature, and can meet the equipment performance test and verification requirements of water lubrication equipment under different water lubrication and cooling medium working conditions. Brief Description of the Drawings

[0014] Figure 1 is the schematic diagram of the multi-functional water lubrication and cooling test system of the present utility model;

[0015] Figure 2 is Figure 1 the schematic diagram of the sediment-laden water supply system in

[0016] Figure 3 is Figure 1 the schematic diagram of the sediment-laden water make-up system in

[0017] Figure 4 is Figure 1 the schematic diagram of the water temperature control system in

[0018] Figure 5 is Figure 1 the schematic diagram of the clear water supply system in

[0019] Figure 6 is Figure 1 the schematic diagram of the lubricating cooling water control circuit in Detailed Embodiment

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] As Figures 1 to 6As shown in the figure, a multifunctional water-lubricated cooling test system provided by an embodiment of the present utility model includes a sediment-laden water supply system 1, a sediment-laden water make-up system 2, a water temperature control system 3, a clean water supply system 4, a lubricating cooling water control circuit 5, and a control box 6. The sediment-laden water supply system 1 and the clean water supply system 4 are respectively connected to the water-lubricated equipment to be tested through the lubricating cooling water control circuit 5. The sediment-laden water supply system 1 is connected to the sediment-laden water make-up system 2. A water temperature control system 3 is also connected between the sediment-laden water supply system 1 and the clean water supply system 4. The control box 6 is respectively connected to the sediment-laden water supply system 1, the sediment-laden water make-up system 2, the water temperature control system 3, the clean water supply system 4, and the lubricating cooling water control circuit 5.

[0022] As Figure 2 shown in the figure, the sediment-laden water supply system 1 is composed of a sediment-laden water tank 11, mixers one and two 12.1, 12.2, a level gauge one 13, a temperature sensor one 14, an overflow pipe one 15, frequency conversion water pumps one and two 16.1, 16.2, pressure gauges one and two 17.1, 17.2, a solenoid valve one V11, a drain valve one V12, electric ball valves one and two V13.1, V13.2, a safety valve one V14, check valves one and two V15.1, V15.2, a stop valve three V16, etc.; the sediment-laden water tank 11 is provided with mixers one and two 12.1, 12.2, a level gauge one 13, a temperature sensor one 14, an overflow pipe one 15. The upper part of the sediment-laden water tank 11 is connected to a sediment-laden water return pipe, a temperature control water return pipe one, and is connected to a supply pipe through a solenoid valve one V11. The lower part of the sediment-laden water tank 11 is respectively connected to a temperature control water supply pipe one, a sediment-laden water make-up pipe, and is connected to a sediment-laden water supply pipe through an electric ball valve one V13.1, a frequency conversion water pump one 16.1, a pressure gauge one 17.1, a check valve two V15.1 and through an electric ball valve two V13.2, a frequency conversion water pump two 16.2, a pressure gauge two 17.2, a check valve one V15.2. The sediment-laden water supply pipe is connected to the lower part of the sediment-laden water tank 11 through a stop valve three V16 and is connected to the upper part of the sediment-laden water tank 11 through a safety valve one V14.

[0023] As Figure 3 shown in the figure, the sediment-laden water make-up system 2 is composed of a spare storage tank 21, a mixer three 22, a level gauge two 23, a frequency conversion water pump three 24, a pressure gauge three 25, a drain valve two V21, a ball valve one V22, a check valve four V23, etc.; the lower part of the spare storage tank 21 is successively connected to a spare sediment-laden water pipe through a ball valve one V22, a frequency conversion water pump three 24, a pressure gauge three 25, and a check valve four V23.

[0024] As Figure 4As shown in the figure, the water temperature control system 3 consists of a variable-frequency water pump four 31, a pressure gauge four 32, a cold and hot water treatment device 33, ball valves two and three V31.1, V31.2, ball valve four V32, electric control ball valves one to four V33.1 to V33.4, ball valves five and six V34.1, V34.2, a filter F31, etc.; the temperature-controlled water supply pipe one of the sediment water supply system 1 is connected to the temperature-controlled water supply pipe two of the clean water supply system 4 through the ball valve four V32, the electric control ball valve one V33.1, and the electric control ball valve two V33.2 to form a temperature-controlled water supply main pipe. The temperature-controlled water return pipe one of the sand water supply system 1 is connected to the temperature-controlled water return pipe two of the clean water supply system 4 through the electric control ball valve three and the electric control ball valve four V33.4 to form a temperature-controlled water return main pipe. A cold and hot water treatment loop composed of the electric control ball valve one V33.1, the variable-frequency water pump four 31, the pressure gauge four 32, the ball valve six V34.2, and the cold and hot water treatment device 33 is connected between the temperature-controlled water supply main pipe and the temperature-controlled water return main pipe; through the combination control of the variable-frequency water pump four 31 and five ball valves and four electric control ball valves V33, it is used to control the temperature of the sediment water and the clean water adjusted to the water temperature required for the test of the lubricated equipment to be tested through the cold and hot water treatment device 33 respectively.

[0025] As Figure 5 shown, the clean water supply system 4 consists of a clean water tank 41, a liquid level gauge three 42, a temperature sensor two 43, an overflow pipe two 44, variable-frequency water pumps five and six 45.1, 45.2, pressure gauges five and six 46.1, 46.2, a solenoid valve two V41, a drain valve V42, a ball valve seven V43, ball valves eight and nine V44.1, V44.2, a ball valve ten V45, electric control ball valves three and four V46.1, V46.2, a safety valve two V47, check valves five and six V48.1, 48.2, a stop valve one V49, etc.; the clean water tank 41 is provided with a liquid level gauge three 42, a temperature sensor two 43, and an overflow pipe two 44. The upper part of the clean water tank 41 is connected to the clean water return pipe and the temperature-controlled water return pipe two, and is connected to the supply pipe through the solenoid valve two V41. The lower part of the clean water tank 41 is connected to the temperature-controlled water supply pipe two through the ball valve seven V43, and is divided into two paths after passing through the ball valve eight V44.1, the ball valve nine V44.2 or the ball valve ten V45. One path is connected to the clean water supply pipe through the electric control ball valve three V46.1, the variable-frequency water pump five 45.1, and the check valve five V48.1, and the other path is connected to the clean water supply pipe through the electric control ball valve four V46.2, the variable-frequency water pump six 45.2, and the check valve six 48.2. The clean water supply pipe is connected to the lower part of the clean water tank 41 through the stop valve one V49, and is connected to the upper part of the clean water tank 41 through the safety valve two V47. According to the water volume requirement of the clean water tank 41, the control system controls the solenoid valve two V41 to supply or cut off the clean water to the clean water tank 41, and the liquid level gauge three 42 measures the internal volume of the water tank; the flow rate of the supplied clean water is controlled by the variable-frequency water pumps five and six 45.1, 45.2, and the two pumps are set as backups for each other to ensure the reliable supply of lubricating cooling water; the water temperature is controlled by the water temperature control system and measured by the temperature sensor two 43.

[0026] As shown Figure 6 in the figure, the lubricating cooling water control loop 5 consists of a return water pressure sensor 51, a feed water pressure sensor 52, a flowmeter 53, stop valves II and III V51.1, V51.2, electro-control ball valves V to IX V52.1 to V52.5, a proportional back pressure valve V53, etc. The water inlet end of the lubricating equipment to be tested is connected to the sediment water supply pipe through the stop valve III V51.2, the feed water pressure sensor 52, the flowmeter 53, and then through the electro-control ball valve VIII V52.4, and is connected to the clear water supply pipe through the electro-control ball valve IX V52.5; the water return end of the lubricating equipment to be tested is respectively connected to the sediment water return pipe through the electro-control ball valve VI V52.2 after passing through the stop valve II V51.1, the return water pressure sensor 51, the proportional back pressure valve V53 or the electro-control ball valve V V52.1, and is connected to the clear water return pipe through the electro-control ball valve VII V52.3. Among them, the electro-control ball valves VI to IX V52.2 to V52.5 are used to control the selection of the types of lubricating cooling water entering and leaving the lubricating equipment to be tested; the electro-control ball valve V V52.1 and the proportional back pressure valve V53 are used to control the return water pressure of the lubricating equipment to be tested, simulate the working pressure of the lubricating equipment to be tested, and the pressures of the lubricating cooling water entering and leaving the lubricating equipment to be tested are measured by the return water pressure sensor 51 and the feed water pressure sensor 52; the flow rate of the lubricating cooling water is measured by the flowmeter 53.

[0027] As shown Figure 1 in the figure, through the control system in the control box 6, the sediment water in the sediment water supply system 1 or the clear water in the clear water supply system 4 is selected to supply the lubricating cooling water to the lubricating equipment to be tested. The flow rate of the lubricating cooling water is controlled by the variable frequency water pump in the sediment water supply system 1 or the clear water supply system 4. The pressure of the lubricating cooling water is set by the combination of the electro-control ball valve and the proportional back pressure valve in the lubricating cooling water control loop 5. The water temperature of the lubricating cooling water is set by the water temperature control system 3. The consumed sediment water is automatically replenished by the sediment water replenishing system 2, and the consumed clear water is automatically replenished by the internal equipment of the clear water supply system. It is possible to freely control the switching between clear water and sediment water and parameters or working conditions such as water flow rate, pressure, and water temperature, and is used for the equipment performance test and verification of the water lubricating equipment under different water lubricating cooling medium working conditions.

[0028] As shown Figures 1 to 6As shown in the figure, the lubrication and cooling conditions of the simulated water-lubricated equipment for sediment-laden water are as follows: In the control box 6, the control system controls the solenoid valve V11 to supply or cut off clear water to the sediment-laden water tank 11, or directly fill the sediment-laden water tank 11 with natural seawater meeting the corresponding requirements. The liquid level gauge 13 measures the volume of the water tank, and corresponding granular substances are added according to the requirements of the lubrication and cooling of the water-lubricated equipment for sediment-laden water for proportioning. After being stirred evenly by the first and second mixers 12.1 and 12.2, the sediment-laden water for lubrication and cooling is supplied to the water-lubricated equipment; the sediment-laden water in the standby storage tank 21 is stirred evenly by the third mixer 22, and the variable-frequency water pump 24 replenishes the sediment-laden water consumed during the test to the sediment-laden water tank in the sediment-laden water supply system. The volume of the sediment-laden water in the standby storage tank 21 is measured by the second liquid level gauge 23; the electric control ball valves V52.2, V52.4 and the second and third stop valves V51.1, V51.2 in the lubricating cooling water control circuit 5 are opened to connect the supply pipeline of the sediment-laden water supply system 1 with the inlet and outlet of the lubricating cooling water of the water-lubricated equipment to be tested in the lubricating cooling water control circuit 5. The electric control ball valves V52.3 and V52.5 of the seventh and ninth are closed to cut off the connection flow path between the clear water supply system 4 and the lubricating cooling water control circuit 5. The working pressure of the lubricating cooling water of the water-lubricated equipment to be tested is set by the electric control ball valve V52.1 and the proportional back pressure valve V53. The inlet and outlet water pressures of the water-lubricated equipment to be tested are measured by the return water pressure sensor 51 and the inlet water pressure sensor 52. The highest system pressure is set by the first safety valve V14, and the system pressure is measured by the first pressure gauge 17.1 or the second pressure gauge 17.2; the flow rate of the supplied sediment-laden water is controlled by the first or second variable-frequency water pump 16.1 or 16.2 in cooperation with the second and third ball valves V31.1, V31.2. The flow rate of the lubricating cooling water is measured by the flow meter 53. The two pumps are set as mutual backups to ensure the reliable supply of the lubricating cooling water; through the combined control of the fourth variable-frequency water pump 31 and the second and third ball valves V31.1, V31.2, the fourth ball valve V32, the fifth and sixth ball valves V34.1, V34.2, and the first to fourth electric control ball valves V33.1 to V33.4, the sediment-laden water can be adjusted to the water temperature required for the test of the water-lubricated equipment by the cold and hot water treatment device 33, which is measured by the first temperature sensor 14.

[0029] As Figure 1 , Figure 4 , Figure 5 , Figure 6As shown in the figure, the lubrication and cooling clear water condition of the simulated water lubrication equipment is as follows: According to the requirement of the water storage capacity of the clear water tank, the control system in the control box 6 controls the solenoid valve II V41 to supply or cut off the clear water to the clear water tank 41, and the liquid level gauge III 42 measures the volume of the water tank. Open the electric control ball valves VII and IX V52.3 and V52.5 and the stop valves II and III V51.1 and V51.2 in the lubricating cooling water control loop 5 to connect the supply pipeline of the clear water supply system 4 with the inlet and outlet of the lubricating cooling water of the water lubrication equipment to be tested. Close the electric control ball valves VI and VIII V52.2 and V52.4 to cut off the connection flow path between the sediment water supply system 1 and the lubricating cooling water control loop 5. The working pressure of the lubricating cooling water of the water lubrication equipment to be tested is set by the electric control ball valve V V52.1 and the proportional back pressure valve V53. The inlet and outlet water pressures of the water lubrication equipment to be tested are measured by the return water pressure sensor 51 and the inlet water pressure sensor 52. The maximum system pressure is set by the safety valve II V47, and the system pressure is measured by the pressure gauge V 46.1 or the pressure gauge VI 46.2. The flow rate of the supplied clear water is controlled by the variable frequency water pump V 45.1 or the variable frequency water pump VI 45.2 in cooperation with the electric control ball valves III and IV V46.1 and V46.2. The flow rate of the lubricating cooling water is measured by the flow meter 53. The two pumps are set as mutual backups to ensure the reliable supply of the lubricating cooling water. Through the combined control of the variable frequency water pump IV 31 and the ball valves V and VI V34.1 and V34.2, and the electric control ball valves I-IV V33.1-V33.4, the clear water can be adjusted to the water temperature required for the water lubrication equipment test by the cold and hot water treatment device 33, which is measured by the temperature sensor II 43.

[0030] Through the sediment water supply system and the sediment water replenishment system in the multi-functional water lubrication and cooling test system, a lubricating cooling sediment water medium with a specified flow rate, water temperature and meeting the requirements such as particle size can be stably provided to the water lubrication equipment to be tested; through the clear water supply system in the multi-functional water lubrication and cooling test system, a lubricating cooling clear water medium with specified flow rate, water temperature and other requirements can be stably provided to the water lubrication equipment to be tested; through the water temperature control system in the multi-functional water lubrication and cooling test system, the control of the water temperature of the clear water or sediment water for lubrication and cooling can be realized to meet the verification requirements of different water temperature conditions of the water lubrication equipment to be tested; through the lubricating cooling water control loop in the multi-functional water lubrication and cooling test system, the control of the selection of the lubricating cooling water type can be realized, and at the same time, the return water pressure of the water lubrication equipment to be tested can be controlled to simulate the working pressure of the water lubrication equipment to be tested; through the control box in the multi-functional water lubrication and cooling test system, the electric control components such as pumps, valves and sensors in the sediment water supply system, sediment water replenishment system, water temperature control system, clear water supply system and lubricating cooling water control loop are monitored, and finally the free control of the switching between clear water and sediment water and the parameters or conditions such as water flow rate, pressure and water temperature can be realized to meet the equipment performance test and verification requirements of the water lubrication equipment under different water lubrication and cooling medium conditions.

[0031] The design of a multi-functional water lubrication and cooling test system for the present utility model starts from the actual ship lubrication cooling water demand working condition characteristics of ship water lubricated stern shaft sealing devices, water lubricated bearings and other similar water lubricated equipment, realizes the switching of fresh water and sediment water for lubrication and cooling, as well as parameters or working conditions such as water flow rate, pressure, water temperature, etc., can simulate comprehensive water lubrication and cooling working conditions such as fresh water and sediment water, and can meet the equipment performance test and verification requirements of water lubricated equipment under different water lubrication and cooling medium working conditions.

Claims

1. A multifunctional water lubrication cooling test system, characterized in that: It includes a sediment water supply system, a sediment water replenishment system, a water temperature control system, a clean water supply system, a lubrication cooling water control loop, and a control box. The sediment water supply system and the clean water supply system are respectively connected to the tested water lubrication equipment through the lubrication cooling water control loop, the sediment water supply system is connected to the sediment water replenishment system, and a water temperature control system is also connected between the sediment water supply system and the clean water supply system. The control box is respectively connected to the sediment water supply system, the sediment water replenishment system, the water temperature control system, the clean water supply system, and the lubrication cooling water control loop.

2. The multifunctional water lubrication cooling test system according to claim 1 is characterized in that: The sediment water supply system includes a sediment water tank, a mixer 1, a mixer 2, a liquid level meter 1, a temperature sensor 1, an overflow pipe 1, a variable frequency water pump 1, a variable frequency water pump 2, a pressure gauge 1, a pressure gauge 2, a solenoid valve 1, a drain valve 1, an electric ball valve 1, an electric ball valve 2, a safety valve 1, a stop check valve 1, a stop check valve 2, and a stop valve 3. The sediment water tank is equipped with a mixer 1, a mixer 2, a liquid level meter 1, a temperature sensor 1, an overflow pipe 1, and the upper part of the sediment water tank is connected to the sediment The water return pipe, the temperature-controlled water return pipe 1, and the water supply pipe are connected through the solenoid valve 1. The lower part of the sediment water tank is respectively connected to the temperature-controlled water supply pipe 1 and the sediment water supply pipe, and is connected to the sediment water supply pipe through the electric ball valve 1, the frequency conversion water pump 1, the pressure gauge 1, the stop check valve 2 and the electric ball valve 2, the frequency conversion water pump 2, the pressure gauge 2, and the stop check valve 1. The sediment water supply pipe is connected to the lower part of the sediment water tank through the stop valve 3, and is connected to the upper part of the sediment water tank through the safety valve 1.

3. The multifunctional water lubrication cooling test system according to claim 1 is characterized in that: The sediment water replenishment system includes a spare storage water tank, three mixers, two liquid level gauges, three frequency conversion water pumps, three pressure gauges, two drain valves, one ball valve, and four stop check valves. The spare storage water tank is equipped with three mixers and two liquid level gauges. The lower part of the spare storage water tank is connected to the spare sediment water pipe through one ball valve, three frequency conversion water pumps, three pressure gauges, and four stop check valves in sequence.

4. The multifunctional water lubrication cooling test system according to claim 1 is characterized in that: The water temperature control system includes a variable frequency water pump four, a pressure gauge four, a hot and cold water treatment device, ball valves two to six, electric ball valves one to four, and a filter; the temperature control water supply pipe one of the sediment water supply system is connected to the temperature control water supply pipe two of the clean water supply system through ball valve four, electric ball valve one, and electric ball valve two to form a temperature control water supply main pipe, the temperature control water return pipe one of the sediment water supply system is connected to the temperature control water return pipe two of the clean water supply system through electric ball valve three and electric ball valve four to form a temperature control water return main pipe, and the temperature control water supply main pipe and the temperature control water return main pipe are connected to a hot and cold water treatment circuit composed of electric ball valve one, variable frequency water pump four, pressure gauge four, ball valve six, and a hot and cold water treatment device.

5. The multifunctional water lubrication cooling test system according to claim 1 is characterized in that: The clean water supply system includes a clean water tank, a level gauge 3, a temperature sensor 2, an overflow pipe 2, a frequency conversion water pump 5, a frequency conversion water pump 6, a pressure gauge 5, a pressure gauge 6, a solenoid valve 2, a drain valve, ball valves 7 to 10, an electric ball valve 3, an electric ball valve 4, a safety valve 2, a stop check valve 5, a stop check valve 6, and a stop valve 1. The clean water tank is equipped with a level gauge 3, a temperature sensor 2, and an overflow pipe 2. The upper part of the clean water tank is connected to a clean water return pipe and a temperature control water return pipe 2, and The make-up water pipe is connected through solenoid valve 2, and the lower part of the clean water tank is connected to the temperature control water supply pipe 2 through ball valve 7, and is divided into two paths after passing through ball valve 8, ball valve 9 or ball valve 10. One path is connected to the clean water supply pipe through electric ball valve 3, frequency conversion water pump 5, and stop check valve 5, and the other path is connected to the clean water supply pipe through electric ball valve 4, frequency conversion water pump 6, and stop check valve 6. The clean water supply pipe is connected to the lower part of the clean water tank through stop valve 1, and is connected to the upper part of the clean water tank through safety valve 2.

6. The multifunctional water lubrication cooling test system according to claim 1 is characterized in that: The lubrication cooling water control circuit includes a return water pressure sensor, an inlet water pressure sensor, a flow meter, stop valve 2, stop valve 3, electric-controlled ball valves 5 to 9, and a proportional back pressure valve. The water inlet end of the tested water lubrication equipment is connected to the sediment water supply pipe through the stop valve 3, the inlet water pressure sensor, and the flow meter, and is connected to the clean water supply pipe through the electric-controlled ball valve 8; the return water end of the tested water lubrication equipment is connected to the sediment water return pipe through the stop valve 2, the return water pressure sensor, the proportional back pressure valve or the electric-controlled ball valve 5, and is connected to the clean water return pipe through the electric-controlled ball valve 6.

7. The multifunctional water lubrication cooling test system according to claim 6 is characterized in that: Electric-controlled ball valve six to electric-controlled ball valve nine are used to control the type of lubricating and cooling water entering and exiting the tested water-lubricated equipment; electric-controlled ball valve five and proportional back-pressure valve are used to control the return water pressure of the tested water-lubricated equipment and simulate the working pressure of the tested water-lubricated equipment; the return water pressure sensor and the inlet water pressure sensor are respectively used to measure the pressure of the lubricating and cooling water entering and exiting the tested water-lubricated equipment; the flow meter is used to measure the flow rate of the lubricating and cooling water.

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