Seawater heat exchange device capable of automatically adjusting temperature

Abstract

The utility model discloses a seawater heat exchange device capable of automatically adjusting temperature, which comprises a heat exchanger, one passage of the heat exchanger is respectively connected with a fresh water inlet pipe and a fresh water outlet pipe, the other passage of the heat exchanger is respectively connected with a seawater inlet pipe and a seawater outlet pipe, and the fresh water inlet pipe is connected with a fresh water pump. A fresh water turbulator is connected between the fresh water pump and the heat exchanger, the seawater inlet pipe is sequentially connected with a seawater pump and an adjusting valve from a water inlet to the heat exchanger, the adjusting valve is a three-way valve, and a turbulent flow pipe and a laminar flow pipe which are connected in parallel are connected between the heat exchanger and the adjusting valve in series. The fresh water pump, the sea water pump and the adjusting valve are all connected with a controller. Through the arrangement of the turbulent flow pipe and the laminar flow pipe which are connected in parallel, the flowing state of seawater can be adjusted according to the temperature environment, so that the heat exchange efficiency of the seawater heat exchange device is changed, and a stable cooling effect is provided for the seawater heat exchange device.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship electrical control and relates to a seawater heat exchange device capable of automatically adjusting temperature. Background Art

[0002] As ships become larger, the number of supporting facilities on board increases. These facilities generate heat during operation, requiring cooling devices to maintain their normal operation. Existing cooling devices typically use seawater as a cooling medium. However, due to the wide range of ocean temperatures, the temperature of the cooling freshwater fluctuates, while the temperature of seawater does not change significantly over a certain period of time. Therefore, it is difficult for cooling devices to provide a stable cooling effect during cooling. Therefore, a seawater heat exchange device is needed to maintain the cooling effect within a certain range to ensure the normal operation of the ship's supporting facilities. Utility Model Content

[0003] The purpose of the utility model is to provide a seawater heat exchange device which can automatically adjust the temperature, thereby solving the problem in the prior art that the seawater heat exchange device is difficult to maintain a stable cooling effect.

[0004] The technical solution adopted by the utility model is to include a heat exchanger, wherein one passage of the heat exchanger is connected to a fresh water inlet pipe and a fresh water outlet pipe respectively, and the other passage of the heat exchanger is connected to a sea water inlet pipe and a sea water outlet pipe respectively;

[0005] The fresh water inlet pipe is connected to a fresh water pump;

[0006] A seawater pump is connected to the seawater inlet pipe. A regulating valve is provided on the seawater inlet pipe between the seawater pump and the heat exchanger. The regulating valve is a diverter three-way regulating valve. The inlet of the regulating valve is connected to the seawater pump, and the two outlets are connected to a spoiler pipe and a laminar flow pipe respectively. The outlets of the spoiler pipe and the laminar flow pipe are merged into the seawater inlet pipe and connected to the heat exchanger.

[0007] The fresh water pump, sea water pump and regulating valve are all connected to the controller.

[0008] The utility model is also characterized in that:

[0009] A section of the fresh water outlet pipe close to the heat exchanger is provided with a first pressure gauge, a first thermometer and a first salinity meter, and a section of the fresh water inlet pipe close to the heat exchanger is provided with a second pressure gauge, a second thermometer and a second salinity meter.

[0010] The first pressure gauge, the first thermometer, the first salinity meter, the second pressure gauge, the second thermometer and the second salinity meter are respectively connected to the controller.

[0011] A fresh water spoiler is connected to the fresh water inlet pipe between the fresh water pump and the heat exchanger, and spiral spoilers are used in the fresh water spoiler and the spoiler pipe.

[0012] The laminar flow pipe adopts a variable diameter pipe, and the inner diameter of the end of the pipe away from the regulating valve is larger than the inner diameter of the end close to the regulating valve.

[0013] An isolation valve is provided on the seawater outlet pipe, and the isolation valve is a one-way valve.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can adjust the flow state of seawater entering the heat exchanger according to the temperature of fresh water through the parallel turbulence pipe, laminar flow pipe and regulating valve, thereby changing the heat exchange efficiency and maintaining the water supply temperature within a fixed range to ensure the normal operation of the ship's supporting facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a seawater heat exchange device capable of automatically adjusting temperature according to the present invention.

[0017] In the figure: 1. heat exchanger; 2. fresh water inlet pipe; 3. fresh water outlet pipe; 4. seawater inlet pipe; 5. seawater outlet pipe; 6. fresh water pump; 7. fresh water spoiler; 8. seawater pump; 9. regulating valve; 10. spoiler pipe; 11. laminar flow pipe; 12. controller; 13. first pressure gauge; 14. first thermometer; 15. first salinity meter; 16. isolation valve; 17. second thermometer; 18. second pressure gauge; 19. second salinity meter. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Example 1:

[0020] like Figure 1 As shown, it includes a heat exchanger 1, one passage of the heat exchanger 1 is connected to a fresh water inlet pipe 2 and a fresh water outlet pipe 3, and the other passage of the heat exchanger 1 is connected to a seawater inlet pipe 4 and a seawater outlet pipe 5.

[0021] The fresh water inlet pipe 2 is connected to a fresh water pump 6 .

[0022] A seawater pump 8 is connected to the seawater inlet pipe 4. A regulating valve 9 is provided on the seawater inlet pipe 4 between the seawater pump 8 and the heat exchanger 1. The regulating valve 9 is a diverter three-way regulating valve. The inlet of the regulating valve 9 is connected to the seawater pump 8, and the two outlets are respectively connected to the spoiler pipe 10 and the laminar flow pipe 11. The outlets of the spoiler pipe 10 and the laminar flow pipe 11 are merged into the seawater inlet pipe 4 and connected to the heat exchanger 1.

[0023] The regulating valve 9 divides the seawater pumped in by the seawater pump 8 into two paths and sends them into the flow disturbance pipe 10 and the laminar flow pipe 11 respectively. At the same time, the flow rate sent to different pipes can be adjusted by controlling the opening of the valve port.

[0024] The spoiler tube 10 is used to increase the Reynolds number of the fluid, causing it to become turbulent, while the laminar flow tube 11 is used to reduce the Reynolds number, causing it to become laminar. The regulating valve 9 can adjust the volume of seawater entering the spoiler tube 10 and the laminar flow tube 11. By mixing liquids with different flow states at the outlet of the spoiler tube 10 and the laminar flow tube 11, the flow state of the fluid can be adjusted within a certain range, thereby adjusting the heat exchange efficiency of the heat exchanger.

[0025] The fresh water pump 6, the sea water pump 8 and the regulating valve 9 are all connected to a controller 12. The controller 12 controls the operation of the driving devices of the fresh water pump 6 and the sea water pump 8, distributes the volume of seawater entering the turbulent flow pipe 10 and the laminar flow pipe 11 through the regulating valve 9, and controls the flow state of the seawater entering the heat exchanger 1 according to the mixing of different amounts of laminar flow seawater and turbulent seawater.

[0026] Example 2:

[0027] Based on Example 1:

[0028] A first pressure gauge 13, a first thermometer 14 and a first salinity meter 15 are provided at a section of the fresh water outlet pipe 3 close to the heat exchanger 1, and a second pressure gauge 18, a second thermometer 17 and a second salinity meter 19 are provided at a section of the fresh water inlet pipe 2 close to the heat exchanger 1. The first pressure gauge 13, the first thermometer 14, the second pressure gauge 18 and the second thermometer 17 are used to provide operating information of the device and provide a basis for the adjustment of the controller 12, while the setting of the salinity meter is used to detect the salinity of the fresh water to prevent seawater from penetrating into the fresh water side.

[0029] The first pressure gauge 13 , the first thermometer 14 , the first salinity meter 15 , the second pressure gauge 18 , the second thermometer 17 , and the second salinity meter 19 are respectively connected to the controller 12 .

[0030] The first pressure gauge 13 and the second pressure gauge 18 are both of model DPI701-E21GBP-F, and are used to collect pressure information in the fresh water inlet pipe 2 and the fresh water outlet pipe 3 and transmit the pressure information to the controller 12 .

[0031] The first thermometer 14 and the second thermometer 17 are both of model DPI701-E11GBT-F, and are used to collect temperature information in the fresh water inlet pipe 2 and the fresh water outlet pipe 3 and transmit the temperature information to the controller 12 .

[0032] The seawater distribution ratio of the regulating valve 9 is adjusted by monitoring the changes in the temperature and pressure of the fresh water in the fresh water inlet pipe 2 and the fresh water outlet pipe 3.

[0033] When the first thermometer 14 on the fresh water outlet pipe 3 detects that the fresh water temperature is too high, the controller 12 controls the seawater distribution ratio of the regulating valve 9 to increase the seawater entering the turbulent pipe 10 and reduce the seawater entering the laminar flow pipe 11, thereby increasing the Reynolds number of the mixed water flow of the two seawaters, thereby improving the heat exchange efficiency of the heat exchanger 1 and reducing the fresh water temperature.

[0034] When the first thermometer 14 on the fresh water outlet pipe 3 detects that the fresh water temperature is too low, the controller 12 controls the seawater distribution ratio of the regulating valve 9 to increase the seawater entering the laminar flow pipe 11 and reduce the seawater entering the turbulent flow pipe 10, thereby reducing the Reynolds number of the mixed water flow of the two seawaters, reducing the heat exchange efficiency of the heat exchanger 1, and increasing the fresh water temperature.

[0035] Example 3:

[0036] Based on Example 1:

[0037] A fresh water spoiler 7 is connected to the fresh water inlet pipe 2 between the fresh water pump 6 and the heat exchanger 1. Spiral spoilers are used in the fresh water spoiler 7 and the spoiler pipe 10. The spoilers can effectively destroy the central flow of the pipeline and the fluid boundary layer, thereby strengthening the turbulent flow and promoting the heat exchange of the fluid.

[0038] The laminar flow pipe 11 adopts a variable diameter pipe, the inner diameter of the end of the pipe away from the regulating valve 9 is larger than the inner diameter of the end close to the regulating valve 9. The variable diameter pipe affects the flow state of the fluid by changing the diameter of the pipe, causing it to change from turbulent flow to laminar flow. By increasing the diameter of the pipe, the flow velocity can be reduced, thereby reducing the Reynolds number, which helps to convert turbulent flow into laminar flow.

[0039] An isolation valve 16 is provided on the seawater outlet pipe 5. The isolation valve 16 is a one-way valve that allows the liquid in the seawater outlet pipe 5 to flow only from the heat exchanger 1 to the outside, preventing seawater from entering the heat exchanger 1 from the seawater outlet pipe 5 under the action of ocean currents and affecting the normal operation of the device.

[0040] Working principle:

[0041] The operator starts the device, and the controller 12 controls the operation of the fresh water pump 6 and the sea water pump 8. The fresh water pump 6 sends fresh water into the fresh water inlet pipe 2, and the fresh water is transformed into turbulent flow through the fresh water spoiler 7 and sent into the heat exchanger 1. At the same time, the sea water pump 8 sends sea water into the sea water inlet pipe 4. After being distributed by the regulating valve 9, the sea water enters the spoiler pipe 10 and the laminar flow pipe 11 respectively, and then merges into one path to enter the heat exchanger 1. After the sea water and fresh water exchange heat in the heat exchanger 1, they are discharged from the sea water outlet pipe 5 and the fresh water outlet pipe 3 respectively.

[0042] During the operation of the device, the water flow information of the fresh water in the fresh water inlet pipe 2 and the fresh water outlet pipe 3 is detected by the first pressure gauge 13, the first thermometer 14, the second pressure gauge 18 and the second thermometer 17 respectively.

[0043] When the first thermometer 14 on the fresh water outlet pipe 3 detects that the fresh water temperature is too high, the controller 12 controls the seawater distribution ratio of the regulating valve 9 to increase the seawater entering the turbulent flow pipe 10 and reduce the seawater entering the laminar flow pipe 11, so that the mixed water flow of the two seawater flows is close to turbulent flow, thereby improving the heat exchange efficiency of the heat exchanger 1 and reducing the fresh water temperature.

[0044] When the first thermometer 14 on the fresh water outlet pipe 3 detects that the fresh water temperature is too low, the controller 12 controls the seawater distribution ratio of the regulating valve 9 to increase the seawater entering the laminar flow pipe 11 and reduce the seawater entering the turbulent flow pipe 10, so that the mixed water flow of the two seawater flows is close to laminar flow, reducing the heat exchange efficiency of the heat exchanger 1 and increasing the fresh water temperature.

[0045] Realize automatic adjustment of seawater heat exchange device and stabilize fresh water temperature within a certain range.

Claims

1. A seawater heat exchange device capable of automatically adjusting temperature, characterized in that: It comprises a heat exchanger (1), wherein one passage of the heat exchanger (1) is respectively connected to a fresh water inlet pipe (2) and a fresh water outlet pipe (3), and another passage of the heat exchanger (1) is respectively connected to a sea water inlet pipe (4) and a sea water outlet pipe (5); The fresh water inlet pipe (2) is connected to a fresh water pump (6); The seawater inlet pipe (4) is connected to a seawater pump (8), and a regulating valve (9) is provided on the seawater inlet pipe (4) between the seawater pump (8) and the heat exchanger (1). The regulating valve (9) is a diverting three-way regulating valve. The inlet of the regulating valve (9) is connected to the seawater pump (8), and the two outlets are respectively connected to a turbulent pipe (10) and a laminar flow pipe (11). The outlets of the turbulent pipe (10) and the laminar flow pipe (11) are merged into the seawater inlet pipe (4) and connected to the heat exchanger (1); The fresh water pump (6), sea water pump (8) and regulating valve (9) are all connected to a controller (12).

2. The seawater heat exchange device capable of automatically adjusting temperature according to claim 1, characterized in that: A section of the fresh water outlet pipe (3) close to the heat exchanger (1) is provided with a first pressure gauge (13), a first thermometer (14) and a first salinity meter (15), and a section of the fresh water inlet pipe (2) close to the heat exchanger (1) is provided with a second pressure gauge (18), a second thermometer (17) and a second salinity meter (19).

3. The seawater heat exchange device capable of automatically adjusting temperature according to claim 2, characterized in that: The first pressure gauge (13), the first thermometer (14), the first salinity meter (15), the second pressure gauge (18), the second thermometer (17), and the second salinity meter (19) are respectively connected to the controller (12).

4. The seawater heat exchange device capable of automatically adjusting temperature according to claim 1, characterized in that: A fresh water spoiler (7) is connected to the fresh water inlet pipe (2) between the fresh water pump (6) and the heat exchanger (1), and spiral spoilers are used in the fresh water spoiler (7) and the spoiler pipe (10).

5. The seawater heat exchange device capable of automatically adjusting temperature according to claim 1, characterized in that: The laminar flow pipe (11) adopts a variable diameter pipe, and the inner diameter of the end of the pipe away from the regulating valve (9) is larger than the inner diameter of the end close to the regulating valve (9).

6. The seawater heat exchange device capable of automatically adjusting temperature according to claim 1, characterized in that: The seawater outlet pipe (5) is provided with an isolation valve (16), and the isolation valve (16) is a one-way valve.

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