Solution concentration system of heat source tower

Abstract

The utility model relates to a heat source tower solution concentration system and belongs to the technical field of energy equipment. Comprising a heat source tower solution tank, an evaporator connected with an outlet of the heat source tower solution tank, a screw type dehydrator connected with a heat source tower solution outlet of the evaporator, and a water collecting tank connected with a water outlet of the screw type dehydrator, the water collecting tank is connected with the heat source tower solution tank; a crystallization promoting device is mounted on the heat source tower solution pipe between the evaporator and the screw type dehydrator; the refrigerant exchanges heat with a solution in the heat source tower through the evaporator; according to the heat source tower solution concentration system, the cold storage capacity of the heat source tower can be fully utilized, the energy saving performance of a heat source tower heat pump system is improved, meanwhile, heat exchange is conducted on the heat source tower solution through a refrigerant, then water in the heat source tower solution is separated out through the crystallization promoting device and the screw type dehydrator, and then the solution in the system is concentrated; and the solution can be recycled for multiple times.

Description

Technical Field

[0001] The utility model relates to a heat source tower solution concentration system, belonging to the technical field of energy equipment. Background Art

[0002] The heat source tower system is a new type of thermal energy utilization device widely used in cooling, heating, and industrial fields. Compared with traditional boiler rooms or municipal hot water supply systems, the heat source tower system combines heat pump technology and offers significant advantages in energy efficiency and environmental friendliness. Its most significant feature is that it uses heat pump technology to achieve heating, providing efficient heating with low energy consumption. This is particularly prominent in winter heating, where the higher the outdoor air humidity, the stronger the performance, eliminating the concerns of frost formation and defrost losses.

[0003] However, during the long-term operation of the system, the concentration of the internally circulating solution will change with the passage of operating time, causing the composition of the solution to change; too low a solution concentration will weaken the system's heating capacity and ultimately reduce the overall performance of the system. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a heat source tower solution concentration system to solve the problem that during the operation of the system, the concentration of the solution gradually decreases with the operating time, which is not conducive to the stable and efficient operation of the system.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A heat source tower solution concentration system comprises: a heat source tower solution tank, an evaporator connected to the outlet of the heat source tower solution tank, a screw dehydrator connected to the heat source tower solution outlet of the evaporator, and a water collection tank connected to the water outlet of the screw dehydrator; the water collection tank is connected to the heat source tower solution tank;

[0007] Among them, the connecting pipe is a heat source tower solution pipe; a crystal promoter is installed on the heat source tower solution pipe between the evaporator and the screw dehydrator;

[0008] Refrigerant and heat source tower solution flow in the evaporator. The refrigerant flows through the evaporator through the refrigerant pipe, and the heat source tower solution flows through the evaporator through the heat source tower solution pipe. The refrigerant exchanges heat with the heat source tower solution through the evaporator.

[0009] Furthermore, a heat source tower solution circulation pump is installed on the heat source tower solution pipe between the evaporator and the heat source tower solution tank, and the liquid flows in a direction away from the heat source tower solution tank.

[0010] Furthermore, a heat source tower solution return pump is installed on the heat source tower solution pipe between the water collecting tank and the heat source tower solution tank, and the liquid flows in the direction of flowing toward the heat source tower solution tank.

[0011] Furthermore, the crystal promoter is an ultrasonic crystal promoter.

[0012] Furthermore, the evaporator is provided with a refrigerant liquid outlet and a refrigerant liquid inlet, the refrigerant liquid outlet of the evaporator is connected to the compressor through a refrigerant pipe, the compressor is connected to the condenser through the refrigerant pipe, and the condenser is connected to the refrigerant liquid inlet of the evaporator through the refrigerant pipe;

[0013] Wherein, an expansion valve is connected to the refrigerant pipe between the condenser and the evaporator.

[0014] Furthermore, the evaporator is a plate heat exchanger, and a corrugated structure is provided on the surface of the plate.

[0015] Furthermore, a rectangular channel is formed inside the evaporator through the plates, and the refrigerant or heat source tower solution flows through the rectangular channel respectively.

[0016] Furthermore, the heat source tower solution and the refrigerant flowing through the evaporator are not in direct contact.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The heat source tower solution concentration system provided in the present application can make full use of the cold storage capacity of the heat source tower, improve the energy efficiency of the heat source tower heat pump system, and at the same time use the refrigerant to exchange heat with the heat source tower solution, and then precipitate the water in the heat source tower solution through a crystal promoter and a screw dehydrator, thereby concentrating the solution in the system so that the solution can be recycled and reused multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 It is a structural schematic diagram of a heat source tower solution concentration system provided by an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Compressor; 2. Condenser; 3. Expansion valve; 4. Evaporator; 5. Crystallizer; 6. Screw dehydrator; 7. Water collection tank; 8. Heat source tower solution circulation pump; 9. Heat source tower solution return pump; 10. Heat source tower solution tank; 11. Refrigerant pipe; 12. Heat source tower solution pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings of the embodiments of the present disclosure / this application to clearly and completely describe the technical solutions in the embodiments of the present disclosure / this application. Obviously, the described embodiments are only some of the embodiments of the present disclosure / this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present disclosure / this application, its application, or use. Example 1:

[0024] This embodiment provides a heat source tower solution concentration system, comprising: a heat source tower solution tank 10, an evaporator 4 connected to the outlet of the heat source tower solution tank 10, a screw dehydrator 6 connected to the heat source tower solution outlet of the evaporator 4, and a water collection tank 7 connected to the outlet of the screw dehydrator 6; the water collection tank 7 is connected to the heat source tower solution tank 10;

[0025] The connecting pipe is a heat source tower solution pipe 12; a crystal promoter 5 is installed on the heat source tower solution pipe 12 between the evaporator 4 and the screw dehydrator 6;

[0026] Refrigerant and heat source tower solution flow in the evaporator 4 . The refrigerant flows through the evaporator 4 through the refrigerant pipe 11 , and the heat source tower solution flows through the evaporator 4 through the heat source tower solution pipe 12 . The refrigerant exchanges heat with the heat source tower solution through the evaporator 4 .

[0027] A heat source tower solution circulation pump 8 is installed on the heat source tower solution pipe 12 between the evaporator 4 and the heat source tower solution tank 10 , and the liquid flows in a direction away from the heat source tower solution tank 10 .

[0028] A heat source tower solution return pump 9 is installed on the heat source tower solution pipe 12 between the water collecting tank 7 and the heat source tower solution tank 10 , and the liquid flows toward the heat source tower solution tank 10 .

[0029] The crystal promoter 5 is an ultrasonic crystal promoter 5, which can cause the solid solute in the supersaturated solution to produce rapid and gradual precipitation, and at the same time can enhance crystal growth. Compared with other stimulated crystallization methods, the supersaturation required for ultrasonic nucleation is lower, the growth rate is fast, and the resulting crystal nuclei are more uniform, complete, and smooth. The size distribution range of the crystal nuclei and the finished crystals is smaller, and the coefficient of variation is lower.

[0030] The evaporator 4 is provided with a refrigerant liquid outlet and a refrigerant liquid inlet. The refrigerant liquid outlet of the evaporator 4 is connected to the compressor 1 through a refrigerant pipe 11. The compressor 1 is connected to the condenser 2 through the refrigerant pipe 11. The condenser 2 is connected to the refrigerant liquid inlet of the evaporator 4 through the refrigerant pipe 11.

[0031] The refrigerant pipe 11 between the condenser 2 and the evaporator 4 is connected to an expansion valve 3 .

[0032] The evaporator 4 is a plate-type heat exchanger, and the surface of the plate is provided with a corrugated structure; the evaporator 4 is formed by pressing metal plates into heat exchange plates with a certain corrugated shape, which are then stacked and fastened with clamps and bolts. Rectangular channels are formed between these plates, and heat exchange is carried out through the plates.

[0033] The solution in the heat source tower and the solution in the refrigerant pipe 11 pass through the flow channel in sequence, with an interlayer plate in the middle to separate the fluids, and heat exchange is carried out through this plate.

[0034] The heat source tower solution concentration system provided in this embodiment offers a major advantage over conventional systems. After a period of operation, conventional systems contain a dilute solution. For multiple uses, solution concentration technology is required to re-concentrate the dilute solution and recycle it. As a novel energy supply solution, the heat source tower acts as a cooling tower in the summer, releasing heat into the air. In the winter, it absorbs heat from the air and converts it into high-quality heat via a heat pump to meet heating needs.

[0035] The inside of the evaporator 4 is formed with rectangular channels by plates, and the refrigerant or heat source tower solution flows through the rectangular channels respectively.

[0036] The heat source tower solution and the refrigerant flowing through the evaporator 4 are not in direct contact.

[0037] When the system provided in this embodiment is in operation, the evaporator 4 circulates to reduce the temperature of the solution in the system to below the freezing point, the water in the solution can be condensed into ice through the crystal promoter 5, and the water in the solution is removed by the screw dehydrator 6. The remaining concentrated solution is transported to the water collection tank 7 and returned to the heat source tower solution tank 10 through the heat source tower solution return pump 9, completing the solution concentration process of the system. Example 2:

[0038] The refrigerant first passes through expansion valve 3, where its pressure drops. It then enters evaporator 4, where it absorbs heat and vaporizes. This process removes heat, cooling the solution. The vaporized refrigerant then flows from evaporator 4 to compressor 1, which pressurizes it before it flows to condenser 2, completing the cycle.

[0039] When the gaseous refrigerant flows from the evaporator 4 into the compressor 1, it compresses it, causing its temperature and pressure to rise dramatically. This process increases the refrigerant's energy and sends it to the condenser 2, where it releases heat. Once the high-temperature, high-pressure gaseous refrigerant enters the condenser 2, it releases a significant amount of heat through heat exchange with the outside air or cooling water, gradually transforming into a liquid state. This released heat is typically dissipated to the external environment. The refrigerant exiting the condenser 2 is a high-pressure liquid. When it passes through the expansion valve 3, its pressure and temperature drop rapidly, leaving it in a low-temperature, low-pressure liquid state or a gas-liquid mixture. The expanded refrigerant then enters the evaporator 4, where it absorbs heat, beginning a new refrigeration cycle.

[0040] In the description of this disclosure / application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure / application based on specific circumstances.

[0041] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present disclosure / application. These improvements and modifications should also be regarded as the scope of protection of the present disclosure / application.

Claims

1. A heat source tower solution concentration system, characterized in that: include: A heat source tower solution tank (10), an evaporator (4) connected to the outlet of the heat source tower solution tank (10), a screw dehydrator (6) connected to the heat source tower solution outlet of the evaporator (4), and a water collection tank (7) connected to the water outlet of the screw dehydrator (6); the water collection tank (7) is connected to the heat source tower solution tank (10); The connecting pipe is a heat source tower solution pipe (12); a crystal promoter (5) is installed on the heat source tower solution pipe (12) between the evaporator (4) and the screw dehydrator (6); Refrigerant and heat source tower solution flow in the evaporator (4). The refrigerant flows through the evaporator (4) via the refrigerant pipe (11), and the heat source tower solution flows through the evaporator (4) via the heat source tower solution pipe.

2. The heat source tower solution concentration system according to claim 1, characterized in that: A heat source tower solution circulation pump (8) is installed on the heat source tower solution pipe (12) between the evaporator (4) and the heat source tower solution tank (10), and the liquid flows in a direction away from the heat source tower solution tank (10).

3. The heat source tower solution concentration system according to claim 1, characterized in that: A heat source tower solution return pump (9) is installed on the heat source tower solution pipe (12) between the water collecting tank (7) and the heat source tower solution tank (10), and the liquid flows in the direction of flowing toward the heat source tower solution tank (10).

4. The heat source tower solution concentration system according to claim 1, characterized in that: The crystal promoter (5) is an ultrasonic crystal promoter.

5. The heat source tower solution concentration system according to claim 1, characterized in that: The evaporator (4) is provided with a refrigerant liquid outlet and a refrigerant liquid inlet. The refrigerant liquid outlet of the evaporator (4) is connected to the compressor (1) via a refrigerant pipe (11). The compressor (1) is connected to the condenser (2) via the refrigerant pipe (11). The condenser (2) is connected to the refrigerant liquid inlet of the evaporator (4) via the refrigerant pipe (11).

6. The heat source tower solution concentration system according to claim 5, characterized in that: An expansion valve (3) is connected to the refrigerant pipe (11) between the condenser (2) and the evaporator (4).

7. The heat source tower solution concentration system according to claim 6, characterized in that: The evaporator (4) is a plate-type heat exchanger, and a corrugated structure is provided on the surface of the plate.

8. The heat source tower solution concentration system according to claim 7, characterized in that: The inside of the evaporator (4) is formed with rectangular channels by plates, and the refrigerant or heat source tower solution flows through the rectangular channels respectively.

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