CN102759156A - Solution regeneration treatment device - Google Patents

Abstract

A solution regeneration treatment device belongs to the field of refrigeration and air-conditioning equipment. The regeneration treatment device includes a heat-insulating sealed enclosure, and a solution regeneration unit, an air condensation unit and a circulating air system arranged in the heat-insulated sealed enclosure. Spray the dilute solution to be regenerated in the solution regeneration unit, the circulating air system will form humid air with higher temperature and higher humidity content after passing through the solution regeneration unit, and the reflow air condensation unit will condense liquid water, so that the dilute The solution is reduced to a concentrated solution and the heat of condensation is recovered. The device can be used in equipment such as solution-sprayed heat pumps and heat source towers that require solution and have no solution regeneration function, so that equipment such as solution-sprayed heat pumps and heat source towers can operate continuously without the need for large-capacity solution tanks.

Description

A solution regeneration treatment device

technical field

The invention relates to a solution regeneration treatment device, which belongs to the field of refrigeration and air-conditioning equipment. Spray the dilute solution to be regenerated in the solution regeneration unit, the circulating air system will form humid air with higher temperature and higher humidity content after passing through the solution regeneration unit, and the reflow air condensation unit will condense liquid water, so that the dilute The solution is reduced to a concentrated solution and the heat of condensation is recovered.

Background technique

Energy has become an important factor restricting economic development. With the rapid development of the economy and the improvement of people's living standards, air-conditioning has become a necessity in people's life, a large energy consumer in buildings, and occupies a large part of the total energy consumption. share.

At present, solution refrigeration and air-conditioning equipment has become a new type of refrigeration and air-conditioning method. In order to use the solution to ensure that heat is obtained from the air and the low-temperature environment does not frost, solution spray refrigeration and air-conditioning equipment has been widely used in solution spray type Heat pumps, heat source towers and other systems to ensure the functionality and efficiency of the system. However, during the use of these units, the concentration of the solution gradually becomes thinner as the running time increases. In order not to affect the operation of the system, the solution needs to be regenerated.

Among the units that need solution regeneration, except for a few solution dehumidification units that have their own solution regeneration devices, most of the units currently store the used dilute solution in the solution tank, and then regenerate separately in summer or other times. In this way, the unit needs to be equipped with a huge amount of solution, and the volume of the solution tank is huge, resulting in a waste of resources and investment.

Therefore, in order to solve the problem of solution regeneration, this patent provides an independent solution regeneration device that can be attached to various units requiring solution regeneration.

Contents of the invention

The invention proposes a solution regeneration treatment device, which uses the condensation heat of the heat pump cycle as the heat source for solution regeneration, and evaporates the water in the dilute solution with an appropriate concentration to obtain a concentrated solution, which ensures the continuous operation of the solution air conditioner without requiring a large Capacity solution storage tank, solution usage is reduced.

The present invention proposes following technical scheme:

A solution regeneration treatment device, characterized in that: the regeneration treatment device contains a heat-insulation sealed enclosure, and a solution regeneration unit, an air condensation unit, and a circulating air system arranged in the heat-insulation and airtight enclosure; the solution regeneration unit includes a condenser, a set A solution sprayer above the condenser, a solution tank arranged below the condenser, a first solution pump, a second solution pump, a dilute solution inlet pipe and a concentrated solution outlet pipe; the dilute solution inlet pipe and The upper part of the solution regeneration unit is connected or connected with the inlet of the first solution pump, the inlet of the first solution pump is connected with the bottom of the solution tank, the outlet is connected with the solution sprayer, and the inlet of the second solution pump is connected with the bottom of the solution tank, The outlet is connected to the outlet pipe of the concentrated solution; the air condensate unit includes an evaporator, a condensate pool set under the evaporator, and a condensate overflow pipe set at the lower part of the condensate pool; it consists of a condenser, a throttling device, an evaporator and a compressor Heat pump circulation; the circulating air system includes a fan and a circulating air flow channel; under the action of the fan, the regenerative circulating air flows through the air condensation unit and the solution regeneration unit, and then recirculates to the air condensation unit.

The solution regeneration treatment device also includes another form, which is characterized in that: the circulating air system can also be provided with an air heat exchanger in the circulating air flow channel; the regeneration circulating air first enters the side air channel of the air heat exchanger under the action of the fan After passing through the air heat exchanger, it enters the air condensation unit, and after passing through the air condensation unit, it enters the air channel on the other side of the air heat exchanger, and the circulating air that comes out passes through the solution regeneration unit to form a circulating flow.

Adopting the above-mentioned technical scheme has the following beneficial effects:

① Due to the use of the solution regeneration treatment device, it not only ensures the continuous use of each unit, but also reduces the solution dosing and the size of the solution tank of the solution unit, reducing the floor area and investment of the unit.

②The present invention is an independent solution regeneration device, which can be additionally used in various units that need solution regeneration, and is convenient to use and install.

Description of drawings

Fig. 1 is a structural principle diagram of the first embodiment of a solution regeneration treatment device provided by the present invention.

Fig. 2 is a structural principle diagram of a second embodiment of a solution regeneration treatment device with an air heat exchanger provided by the present invention.

Among them: 1-solution regeneration unit; 2-air condensation water unit; 3-insulation sealing shell; 4-condenser; 5-solution sprayer; 6-solution tank; 7-first solution pump; 8-second solution Pump; 9-dilute solution inlet pipe; 10-concentrated solution outlet pipe; 11-evaporator; 12-condensate pool; 13-condensate overflow pipe; 14-compressor; 15-throttling device; 16-fan; 17-circulating air flow channel; 18-air heat exchanger.

Detailed ways

The structure, principle and operation mode of the present invention will be further described below in conjunction with the accompanying drawings.

Embodiment one:

Fig. 1 is a structural principle diagram of the first embodiment of a solution regeneration treatment device provided by the present invention. The solution regeneration treatment device contains a heat-insulation airtight enclosure 3, and a solution regeneration unit 1, an air condensation unit 2, and a circulating air system arranged in the heat-insulation airtight enclosure 3; the solution regeneration unit 1 includes a condenser 4, which is arranged in the condenser 4 above the solution sprayer 5, the solution tank 6 arranged below the condenser 4, the first solution pump 7, the second solution pump 8, the dilute solution inlet pipe 9 and the concentrated solution outlet pipe 10; The solution inlet pipe 9 communicates with the upper part of the solution regeneration unit 1 or communicates with the inlet of the first solution pump 7, the inlet of the first solution pump 7 is connected with the bottom of the solution tank 6, and the outlet is connected with the solution sprayer 5, the second The inlet of the second solution pump 8 is connected with the bottom of the solution tank 6, and the outlet is connected with the concentrated solution outlet pipe 10; Condensate overflow pipe 13. Condenser 4, throttling device 15, evaporator 11 and compressor 14 form a heat pump cycle; the circulating air system includes a fan 16 and a circulating air channel 17; the regenerative circulating air flows through the air condensation unit under the action of the fan 16 2 and the solution regeneration unit 1, then recirculate to the air condensation unit 2.

When the solution needs to be regenerated, the compressor 14 and the fan 16 are turned on. The solution that needs to be regenerated enters the regeneration device through the dilute solution inlet pipe 9, and after being regenerated to form a concentrated solution, it exits the concentrated solution outlet pipe 10.

The regeneration circulation air flows through the air condensation water unit 2 under the action of the fan 16 to recover condensation heat, and when the condensation water in the condensation pool 12 is too much, it is discharged through the condensation water overflow pipe 13; after that, the circulation air flows through the solution regeneration unit 1 to be heated and humidified After the solution is regenerated, it is recycled to the air condensation unit 2.

Embodiment two:

Fig. 2 is a structural principle diagram of a second embodiment of a solution regeneration treatment device with an air heat exchanger provided by the present invention. The solution regeneration treatment device contains a heat-insulation airtight enclosure 3, and a solution regeneration unit 1, an air condensation unit 2, and a circulating air system arranged in the heat-insulation airtight enclosure 3; the solution regeneration unit 1 includes a condenser 4, which is arranged in the condenser 4 above the solution sprayer 5, the solution tank 6 arranged below the condenser 4, the first solution pump 7, the second solution pump 8, the dilute solution inlet pipe 9 and the concentrated solution outlet pipe 10; The solution inlet pipe 9 is connected with the top of the solution regeneration unit 1 or with the inlet of the first solution pump 7, the inlet of the first solution pump 7 is connected with the bottom of the solution tank 6, and the outlet is connected with the solution sprayer 5, and the second solution The inlet of the pump 8 is connected to the bottom of the solution tank 6, and the outlet is connected to the concentrated solution outlet pipe 10; Water overflow pipe 13. Condenser 4, throttling device 15, evaporator 11 and compressor 14 form heat pump cycle; Described circulating air system comprises blower fan 16, circulating air passage 17 and air heat exchanger 18; First enter the air duct on one side of the air heat exchanger 18, enter the air condensation unit 2 after passing through the air heat exchanger 18, enter the other side air duct of the air heat exchanger 8 after passing through the air condensation unit 2, and come out The circulating air passes through the solution regeneration unit 1 to form a circulating flow.

When the solution needs to be regenerated, the compressor 14 and the fan 16 are turned on. The solution that needs to be regenerated enters the regeneration device through the dilute solution inlet pipe 9, and after being regenerated to form a concentrated solution, it exits the concentrated solution outlet pipe 10.

After the regenerative circulating air flows through the side air channel of the air heat exchanger 18 under the action of the fan 16, it passes through the air condensation water unit 2 to recover the condensation heat, and when the condensation water in the condensation pool 12 is too much, it is discharged through the condensation water overflow pipe 13 Afterwards, the circulating air flows through the air duct on the other side of the air heat exchanger 8, is heated and humidified by the solution regeneration unit 1 to regenerate the solution, and then recirculates to the air condensation unit 2.

Claims (2)

1. A solution regeneration treatment device, characterized in that: the regeneration treatment device contains a heat-insulating sealed casing (3), and a solution regeneration unit (1) and an air condensation unit (2) arranged in the heat-insulating sealed casing (3) ) and circulating air system; the solution regeneration unit (1) includes a condenser (4), a solution sprayer (5) arranged above the condenser (4), and a solution tank (6) arranged below the condenser (4) , the first solution pump (7), the second solution pump (8), the dilute solution inlet pipe (9) and the concentrated solution outlet pipe (10); the dilute solution inlet pipe (9) and the solution regeneration unit The upper part of (1) is connected or connected with the inlet of the first solution pump (7), the inlet of the first solution pump (7) is connected with the bottom of the solution tank (6), and the outlet is connected with the solution sprayer (5), The inlet of the second solution pump (8) is connected to the bottom of the solution tank (6), and the outlet is connected to the concentrated solution outlet pipe (10); ) below the condensate pool (12) and the condensate overflow pipe (13) arranged at the lower part of the condensate pool (12); condenser (4), throttling device (15), evaporator (11) and compressor (14) A heat pump cycle is formed; the circulating air system includes a fan (16) and a circulating air flow channel (17); the regenerative circulating air flows through the air condensation unit (2) and the solution regeneration unit (1) under the action of the fan (16) After that, it is recirculated to the air condensation unit (2). 2. A solution regeneration treatment device according to claim 1, characterized in that: in the circulating air system, an air heat exchanger (18) is also provided in the circulating air channel (17); ), under the action of the air heat exchanger (18), it first enters the side air duct of the air heat exchanger (18), enters the air condensation unit (2) after passing through the air heat exchanger (18), and enters the air exchange unit (2) after passing through the air condensation unit (2). In the air channel on the other side of the heater (8), the circulating air coming out passes through the solution regeneration unit (1) to form a circulating flow.

Images