Heating system for sodium hydroxide solution cabin of ice region ship

Abstract

The invention provides a heating system for a sodium hydroxide solution tank of an ice region ship, comprising: a sodium hydroxide solution tank for holding a sodium hydroxide solution; the heat exchanger is arranged in the sodium hydroxide solution cabin; the temperature control probe is arranged in the sodium hydroxide solution cabin and is used for monitoring the PH value of the sodium hydroxide solution in the sodium hydroxide solution cabin; the hot water supply system is communicated with the heat exchanger; the hot water supply system is communicated with the heat exchanger through the temperature control valve, and the temperature control probe is connected with the temperature control valve. According to the heating system for the sodium hydroxide solution cabin of the ice region ship, the temperature of the sodium hydroxide solution is determined by measuring the PH value of the supersaturated sodium hydroxide solution, and the temperature of the sodium hydroxide solution is adjusted. A temperature control system is additionally arranged on the sodium hydroxide solution cabin to prevent sodium hydroxide from low-temperature crystallization.

Description

Technical Field

[0001] The invention belongs to the technical field of ship storage cabinet equipment, and in particular relates to a heating system for a sodium hydroxide solution tank of an ice-covered ship. Background Art

[0002] At present, sodium hydroxide solution tanks on ice-covered ships are used to store sodium hydroxide solution, but sodium hydroxide solution will crystallize at low temperatures, and the crystallized sodium hydroxide cannot meet the working needs of the ship system.

[0003] At present, most ships are not equipped with automatic heating systems, especially when sailing in relatively low ambient temperatures, which poses certain safety risks and has serious consequences.

[0004] Therefore, installing a temperature control system on the sodium hydroxide solution tank to prevent low-temperature crystallization of sodium hydroxide is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a sodium hydroxide solution tank heating system for an ice-covered ship, comprising:

[0006] Sodium hydroxide solution tank, used for containing sodium hydroxide solution;

[0007] A heat exchanger is arranged in the sodium hydroxide solution tank;

[0008] A temperature control probe is arranged in the sodium hydroxide solution tank and is used to monitor the pH value of the sodium hydroxide solution in the sodium hydroxide solution tank;

[0009] a hot water supply system, connected to the heat exchanger;

[0010] A temperature control valve, the hot water supply system is connected to the heat exchanger through the temperature control valve, and the temperature control probe is connected to the temperature control valve.

[0011] Further: the hot water supply system includes a hot water tank, the heat supply outlet of the hot water tank is connected to the inlet of the heat exchanger, and the outlet of the heat exchanger is connected to the heat supply inlet of the hot water tank.

[0012] Further: the outlet of the heat exchanger is connected to the heating inlet of the hot water cabinet through a first branch and a second branch respectively.

[0013] Further: the first branch is provided with a first hot water circulation pump, and the second branch is provided with a second hot water circulation pump.

[0014] Further: the hot water cabinet is provided with a temperature display device and a pressure display device.

[0015] Further: the temperature control probe is arranged at the bottom of the sodium hydroxide solution cabin.

[0016] Furthermore: the opening of the temperature control valve is adjustable to control the flow of hot water entering the heat exchanger.

[0017] Furthermore: it also includes: a water supply system, which is connected to the hot water tank through a stop valve.

[0018] Further: it also includes: a discharge chamber, and the hot water tank is connected to the discharge chamber through a stop valve.

[0019] Further: the outlet of the heat exchanger is provided with a drain pipeline, and the drain pipeline is provided with a self-closing discharge valve.

[0020] The beneficial effects brought by the present invention are as follows:

[0021] As can be seen from the above scheme, the present invention provides a heating system for a sodium hydroxide solution tank of an ice-covered ship, which determines the temperature of the sodium hydroxide solution by measuring the pH value of the supersaturated sodium hydroxide solution and adjusts the temperature of the sodium hydroxide solution. A temperature control system is installed in the sodium hydroxide solution tank to prevent sodium hydroxide from crystallizing at low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a sodium hydroxide solution tank heating system for an ice-covered ship according to an embodiment of the present invention is shown.

[0023] In the figure, 1 is a water supply system; 2 is a hot water cabinet; 3 is a discharge tank; 4 is a temperature control valve; 5 is a self-closing discharge valve; 6 is a sodium hydroxide solution tank; 7 is a heat exchanger; 8 is a temperature control probe; 9 is a first hot water circulation pump; and 10 is a second hot water circulation pump. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the present invention provides a sodium hydroxide solution tank heating system for an ice-covered ship, comprising:

[0026] A sodium hydroxide solution tank 6, used for containing sodium hydroxide solution;

[0027] A heat exchanger 7 is arranged in the sodium hydroxide solution tank 6;

[0028] The temperature control probe 8 is arranged in the sodium hydroxide solution tank 6 and is used to monitor the pH value of the sodium hydroxide solution in the sodium hydroxide solution tank 6;

[0029] A hot water supply system, connected to the heat exchanger 7;

[0030] Thermostatic valve 4 , the hot water supply system is connected with the heat exchanger 7 through the thermostatic valve 4 , and the temperature control probe 8 is connected with the thermostatic valve 4 .

[0031] Specifically, a temperature control probe 8 is provided in the sodium hydroxide solution cabin 6, and the temperature control probe 8 is used to monitor the pH value of the sodium hydroxide solution in the sodium hydroxide solution cabin 6, and the temperature of the sodium hydroxide solution is determined by measuring the pH value of the supersaturated sodium hydroxide solution.

[0032] The temperature control probe 8 is connected to the temperature control valve 4 , and the hot water supply system is connected to the heat exchanger 7 through the temperature control valve 4 .

[0033] The temperature control valve 4 controls the heat supply of the hot water supply system to the heat exchanger 7 according to the temperature of the sodium hydroxide solution, and the heat exchanger 7 can transfer heat to the sodium hydroxide solution in the sodium hydroxide solution tank 6.

[0034] As can be seen from the above scheme, the present invention provides a sodium hydroxide solution tank heating system for ice-covered ships, which determines the temperature of the sodium hydroxide solution by measuring the pH value of the supersaturated sodium hydroxide solution and adjusts the temperature of the sodium hydroxide solution. A temperature control system is installed in the sodium hydroxide solution tank 6 to prevent sodium hydroxide from crystallizing at low temperatures.

[0035] Furthermore, the hot water supply system includes a hot water tank 2 , a heat supply outlet of the hot water tank 2 is connected to an inlet of a heat exchanger 7 , and an outlet of the heat exchanger 7 is connected to a heat supply inlet of the hot water tank 2 .

[0036] Furthermore, the outlet of the heat exchanger 7 is connected to the heat supply inlet of the hot water cabinet 2 through the first branch and the second branch respectively.

[0037] Furthermore, the first branch is provided with a first hot water circulation pump 9 , and the second branch is provided with a second hot water circulation pump 10 .

[0038] The first hot water circulation pump 9 and the second hot water circulation pump 10 can be used as backup for each other. Generally, one of the pumps works continuously for 3 months on board, and then the other pump works continuously for 3 months. The two pumps are used in turn.

[0039] Furthermore, the hot water cabinet 2 is provided with a temperature display device and a pressure display device for displaying the temperature and pressure of the hot water cabinet 2 .

[0040] Further, the temperature control probe 8 is arranged at the bottom of the sodium hydroxide solution tank 6 to facilitate monitoring the pH value of the sodium hydroxide solution in the sodium hydroxide solution tank 6.

[0041] Furthermore, the opening of the temperature control valve 4 is adjustable to control the flow of hot water entering the heat exchanger 7. The amount of heat supplied to the heat exchanger 7 by the hot water supply system can be controlled.

[0042] Furthermore, it also includes: a water supply system 1, which is connected to the hot water cabinet 2 through a stop valve.

[0043] The water supply system 1 is used to replenish the hot water tank 2 with new water.

[0044] Furthermore, it also includes: a discharge chamber 3, and the hot water tank 2 is connected to the discharge chamber 3 through a stop valve.

[0045] The discharge tank 3 is used to store the water discharged from the hot water tank 2 .

[0046] Furthermore, the outlet of the heat exchanger 7 is provided with a drain pipe, and the drain pipe is provided with a self-closing discharge valve 5 for sampling circulating water.

[0047] like Figure 1 As shown, the present invention provides a sodium hydroxide solution tank heating system for an ice-covered ship, which is explained below with a specific embodiment.

[0048] The sodium hydroxide solution tank 6 is a supersaturated sodium hydroxide solution tank 6. As the temperature rises, the solubility of the sodium hydroxide solution increases, and the pH value of the sodium hydroxide solution gradually rises. When the temperature decreases, the sodium hydroxide solution gradually crystallizes, and the pH value decreases. The temperature control probe 8 is installed inside the sodium hydroxide solution tank 6 and connected to the temperature control valve 4.

[0049] The temperature control probe 8 confirms the concentration and temperature of the sodium hydroxide solution by checking the pH value of the sodium hydroxide solution inside the sodium hydroxide solution tank 6. When the pH value of the sodium hydroxide solution decreases, the temperature control probe 8 transmits a signal to the temperature control valve 4, and the temperature control valve 4 increases the hot water flow inside the pipeline of the hot water supply system. When the pH value of the sodium hydroxide solution rises to meet the requirements, the temperature control valve 4 gradually reduces the flow rate, so that the supersaturated sodium hydroxide solution tank 6 stops heating and maintains the existing temperature.

[0050] A hot water cabinet 2 is arranged near the sodium hydroxide solution tank 6, and a temperature and pressure display device is arranged on the hot water cabinet 2.

[0051] The water supply system 1 is connected to the hot water tank 2 through a stop valve. The water supply system 1 is used to add new water to the hot water tank 2. The water inside the hot water tank 2 can be discharged to the discharge tank 3 through the stop valve pipeline. The discharge tank 3 can store the hot water discharged from the hot water tank 2 to prevent the hot water tank 2 from being damaged due to too much hot water inside.

[0052] The first hot water circulation pump 9 and the second hot water circulation pump 10 can be used as backup for each other. Generally, one of them works continuously for 3 months on board, and then the other works continuously for 3 months. The two pumps are used to provide power for the heat medium water circulation.

[0053] A heat exchanger 7 is provided in the sodium hydroxide solution tank 6, and the heat exchanger 7 can be a set of temperature control coils. Hot water enters the temperature control coils through the temperature control valve 4, circulates inside the sodium hydroxide solution tank 6, and exchanges heat with the sodium hydroxide solution. A self-closing discharge valve 5 is provided at the outlet of the heat exchanger 7 for sampling the circulating water. The temperature control valve 4 controls the temperature of the sodium hydroxide solution by adjusting the flow rate of the water inside the pipeline, so that the temperature is maintained between 20-30 degrees Celsius.

[0054] It can be seen from the above scheme that the present invention provides a sodium hydroxide solution tank heating system for ice-covered ships, which determines the sodium hydroxide by measuring the pH value of the supersaturated sodium hydroxide solution.

[0055] The temperature of the solution is adjusted, and the temperature of the sodium hydroxide solution is adjusted. A temperature control system is installed in the sodium hydroxide solution tank 6 to prevent the sodium hydroxide from crystallizing at low temperature.

[0056] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A sodium hydroxide solution tank heating system for an ice-covered ship, characterized in that: include: Sodium hydroxide solution tank, used for containing sodium hydroxide solution; A heat exchanger is arranged in the sodium hydroxide solution tank; A temperature control probe is arranged in the sodium hydroxide solution tank and is used to monitor the pH value of the sodium hydroxide solution in the sodium hydroxide solution tank; a hot water supply system, connected to the heat exchanger; A temperature control valve, the hot water supply system is connected to the heat exchanger through the temperature control valve, and the temperature control probe is connected to the temperature control valve.

2. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 1, characterized in that: The hot water supply system comprises a hot water tank, a heat supply outlet of the hot water tank is communicated with an inlet of the heat exchanger, and an outlet of the heat exchanger is communicated with a heat supply inlet of the hot water tank.

3. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 2 is characterized in that: The outlet of the heat exchanger is communicated with the heat supply inlet of the hot water tank through a first branch and a second branch respectively.

4. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 3 is characterized in that: The first branch is provided with a first hot water circulation pump, and the second branch is provided with a second hot water circulation pump.

5. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 2, characterized in that: The hot water cabinet is provided with a temperature display device and a pressure display device.

6. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 1, characterized in that: The temperature control probe is arranged at the bottom of the sodium hydroxide solution tank.

7. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 1, characterized in that: The opening of the temperature control valve is adjustable to control the flow of hot water entering the heat exchanger.

8. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 2, characterized in that: Also includes: A water supply system is connected to the hot water tank through a stop valve.

9. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 1, characterized in that: Also includes: A discharge chamber, wherein the hot water tank is connected to the discharge chamber via a stop valve.

10. The sodium hydroxide solution tank heating system for ice-covered ships according to claim 1, characterized in that: The outlet of the heat exchanger is provided with a drain pipeline, and the drain pipeline is provided with a self-closing discharge valve.

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