CN106931513B - A kind of electro-osmosis refrigerated dehumidification heat exchanger - Google Patents

Abstract

The invention belongs to air-conditioning technical fields, more particularly to a kind of electro-osmosis refrigerated dehumidification heat exchanger, it includes frame, refrigerant tubing, drainpipe, and dehumidify fin and heat exchange fin, dehumidifying fin is made of side by side the hygroscopic material of two panels plate, its outer surface and inner surface are arranged in parallel have positive electrode and negative electrode material respectively, the positive electrode and negative electrode material pass through positive and negative lead wires respectively and positive and negative anodes wiring connect with power source special and realizes electro-osmosis dehumidifying, also there are drainage cavities between two panels hygroscopic material, moisture in drainage cavity is pooled in drainpipe and is discharged by the aqueduct of drainage cavity bottom；Refrigerant tubing is set on every piece of heat exchange fin.Electro-osmosis refrigerated dehumidification heat exchanger of the invention can be realized the independent control of air-conditioning device temperature and humidity, the regeneration of hygroscopic material is realized, also has the characteristics that dehumidifying heat exchange efficiency is high, furthermore, the comfort that living space can also be improved, have many advantages, such as safely, effectively, energy-saving and environmental protection.

Description

An electro-osmotic refrigeration dehumidification heat exchanger

technical field

The present invention relates to the technical field of air conditioning, and more specifically relates to an electro-osmotic refrigeration dehumidification heat exchanger designed by using hygroscopic materials and an electro-osmotic device, which can realize independent control of the temperature and humidity of the air-conditioning device.

Background technique

There are two kinds of dehumidifying means commonly used in the air conditioners used in existing home and office environments. The one is to use special dehumidification equipment, such as wheel dehumidifiers, liquid dehumidifiers, etc. to dehumidify (such as patent CN203183895U), and another method is Use surface heat exchange equipment to carry out cooling and dehumidification (such as patent CN104089393A). The first dehumidification method is usually operated in a large-scale system, which requires the use of an auxiliary heat source to regenerate the dehumidification equipment (such as patent CN 102721133A), but the traditional heat source regeneration method is complex and bulky, and it is inconvenient to operate and control. Switching is inconvenient. For general air conditioning systems, the refrigeration and dehumidification processes are integrated, and cooling and condensation dehumidification are performed through surface cooling equipment. This requires the air temperature to be lowered below the zero point temperature, so that the water vapor in the air can be condensed into a liquid state to achieve the dehumidification process, which will cause the efficiency of the main engine to decrease. At the same time, it may also cause the temperature of the air supply to be too low, making people feel cold and uncomfortable. The treated air often needs to be reheated to offset the cold and heat, resulting in a waste of energy.

To sum up, there is an urgent need in this field to develop a cooling dehumidification air conditioner with high heat transfer performance, good comprehensive performance, simple structure and low manufacturing cost.

Due to the above-mentioned defects and deficiencies, further improvement and improvement are urgently needed in this field. It is proposed to develop a cooling dehumidification air conditioner, which has the advantages of high heat exchange performance, good overall performance, simple structure and low manufacturing cost, so that The needs of modern home life.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides an electro-osmosis refrigeration dehumidification heat exchanger. The proposed heat exchanger can dehumidify and cool down at the same time, and has higher thermal efficiency than traditional cooling and dehumidification heat exchangers; The proposed cooling dehumidification heat exchanger does not require high-temperature regeneration, but uses an electro-osmosis device to achieve regeneration of hygroscopic materials. It solves technical problems such as difficult and complicated regeneration of moisture-absorbing materials in traditional dehumidification heat exchangers, low efficiency of traditional cooling and dehumidification units, and waste of energy. It can not only improve the comfort of the living space, but also has the advantages of safety, effectiveness, energy saving and environmental protection.

In order to achieve the above object, according to one aspect of the present invention, an electro-osmotic refrigeration dehumidification heat exchanger is provided, which is characterized in that it includes a frame, a refrigerant pipeline, a drain pipe arranged at the bottom of the frame, and a Several pieces of dehumidification fins and heat exchange fins;

Wherein, each of the dehumidification fins is composed of two sheets of hygroscopic materials arranged side by side, the outer surfaces of the two hygroscopic materials are arranged in parallel with the positive electrode material, and the inner surfaces of the two hygroscopic materials are arranged in parallel with the negative electrode material. The positive electrode material and the negative electrode material are drawn out through the positive electrode lead wire and the negative electrode lead wire respectively, and then connected in parallel with the positive electrode connection and the negative electrode connection. The positive electrode connection and the negative electrode connection are connected to a special power supply to realize electroosmotic dehumidification. cavity, the water diversion pipe at the bottom of the drain cavity of each dehumidification fin collects the water in the drain cavity to the drain tube for discharge;

The dehumidifying fins and heat exchanging fins are arranged vertically and parallel inside the frame, the dehumidifying fins and heat exchanging fins are arranged in a row and arranged alternately, or the dehumidifying fins and heat exchanging fins are arranged in a row respectively Arranged in parallel, the refrigerant pipes pass through the row where the heat exchange fins are located.

Further preferably, when the dehumidification fins and the heat exchange fins are arranged in a row and arranged alternately, the dehumidification fins and the heat exchange fins are provided with holes for the passage of refrigerant pipes; the dehumidification fins and the When the heat exchanging fins are arranged in a parallel row, only the heat exchanging fins are provided with holes for the passage of refrigerant pipes. According to actual use needs, the dehumidification fins and heat exchange fins arranged alternately or in rows are used to meet different use environments.

Preferably, the holes are arranged in a parallel array, and are arranged at the same position of each dehumidification fin or heat exchange fin. The holes are arranged in parallel at the same position of each dehumidification fin or heat exchange fin, which can facilitate the penetration of refrigerant pipes.

Preferably, the moisture-absorbing material is silica gel, molecular sieve, activated alumina, water-absorbing resin or composite moisture-absorbing material, and the heat exchange fins are aluminum fins. Many comparative tests have shown that silica gel, molecular sieves, activated alumina, water-absorbing resins and composite hygroscopic materials all have good hygroscopic capacity and can quickly absorb moisture in the air for subsequent electroosmotic dehumidification. Aluminum fins have the advantages of rapid heat exchange, light weight and low price, and are very suitable for use as heat exchange fins.

Preferably, the positive electrode material is a conductive material; the negative electrode material is a conductive and corrosion-resistant material.

Preferably, the positive electrode material is titanium wire; the negative electrode material is copper rod.

Many comparative tests have shown that using the above-mentioned materials as positive and negative electrode materials can not only improve the efficiency of electroosmosis, thereby improving the dehumidification effect, but also prolong the service life of the heat exchanger.

Preferably, the dedicated power supply includes an AC/DC power conversion module, a power output module, a state detection module and a main control module.

Preferably, the positive pole connection and the negative pole connection are connected to a power output module of a dedicated power supply, and the power output module outputs a changing pulse, and the waveform of the changing pulse is composed of zero level, positive pulse and negative pulse. Through the change of the pulse, the water is drained during the positive pulse, and the negative pulse and zero level are buffered, so as to effectively realize the electro-osmotic dehumidification and ensure the smooth progress of the dehumidification process.

Preferably, an insulating bushing is provided on the outside of the hole, and the four corners of the dehumidification fin and the heat exchange fin are fixed on the frame by fixing brackets.

According to another aspect of the present invention, there is provided a domestic indoor cooling and dehumidification heat exchange cabinet machine, which is characterized in that it includes a cabinet, an air outlet is arranged above the cabinet, an air inlet is arranged below the cabinet, and an air inlet is provided below the cabinet. A turbo fan is provided for sucking in air, and above the turbo fan is provided with the above-mentioned electro-osmosis refrigeration dehumidification heat exchanger, the air introduced in the turbo fan enters the electro-osmosis refrigeration dehumidification heat exchanger through the air duct for heat exchange and dehumidification, Finally, it is discharged through the air outlet.

Preferably, a cleaning dust filter is provided on the rear side of the air inlet. The setting of the cleaning dust filter can absorb dust and PM2.5 and other impurities in the inhaled air to achieve the effect of purifying the air.

Preferably, a deflector is also provided on the cabinet at the rear side of the electro-osmotic refrigeration dehumidification heat exchanger. Many comparative tests have shown that the air introduced by the turbo blower can be evenly introduced into the electro-osmosis refrigeration dehumidification heat exchanger after the deflector is set, thereby improving the efficiency of dehumidification and heat exchange.

Generally speaking, compared with the prior art, the above technical solution conceived by the present invention has the following advantages and beneficial effects:

(1) The electroosmotic cooling and dehumidification heat exchanger of the present invention adopts hygroscopic materials and sets positive and negative electrodes on the surface of the hygroscopic materials by arranging refrigerant pipes, heat exchange fins and dehumidifying fins, and the moisture is absorbed by the principle of electroosmosis. Discharge can realize the independent control of the temperature and humidity of the air conditioner, so that the dehumidification and cooling can be carried out at the same time, and the thermal efficiency is higher than that of the traditional cooling dehumidification heat exchanger; The device realizes the regeneration of the hygroscopic material. It solves technical problems such as difficult and complicated regeneration of moisture-absorbing materials in traditional dehumidification heat exchangers, low efficiency of traditional cooling and dehumidification units, and waste of energy. It can not only improve the comfort of the living space, but also has the advantages of safety, effectiveness, energy saving and environmental protection.

(2) The dehumidifying fins and the heat exchanging fins are arranged alternately and arranged in parallel, or the dehumidifying fins and the heat exchanging fins are respectively arranged in two parallel rows, which can meet the needs of different use environments. By selecting materials such as hygroscopic materials, positive and negative electrode materials, and fins, the cooling and dehumidification effect of the heat exchanger can be improved, and its service life can be extended at the same time.

(3) A power output module is provided in the dedicated power supply, and the power output module outputs changing pulses, and the waveform of the changing pulses is composed of zero level, positive pulse and negative pulse. Through the change of the pulse, the water is drained during the positive pulse, and the negative pulse and zero level are buffered, which can effectively realize the electroosmotic dehumidification and ensure the smooth progress of the dehumidification process.

(4) The domestic indoor cooling and dehumidification heat exchange cabinet machine provided by the present invention adopts an electroosmotic cooling and dehumidification heat exchanger, which has a good heat exchange and dehumidification effect, improves the comfort of use, and has the advantages of small size and low price. Ideal for home use.

(5) The dehumidification heat exchanger proposed by the present invention can not only be used in traditional household air-conditioning indoor heat exchangers, but also can be used in heat exchangers that require both dehumidification and cooling in the environment. The device is simple and compact, has low energy consumption, low material cost, good dehumidification effect and comfortable use.

Description of drawings

Fig. 1 is a kind of electro-osmotic refrigeration dehumidification heat exchanger structural diagram of the present invention;

Fig. 2 is a structural diagram of another electro-osmotic refrigeration dehumidification heat exchanger of the present invention;

Fig. 3 is a structural diagram of the dehumidification fin corresponding to Fig. 1 in the present invention;

Fig. 4 is a structural diagram of dehumidification fins corresponding to Fig. 2 in the present invention;

Fig. 5 is a structural schematic diagram of a dedicated power supply module in the present invention;

Fig. 6 is a flow chart for the dehumidification process system of the present invention;

Fig. 7 is the pulse application amount that is used in the embodiment of the present invention;

Fig. 8 is a structural diagram of the present invention for a household indoor cabinet;

Throughout the drawings, the same reference numerals are used to designate the same elements or structures, wherein:

1-dehumidification fins, 2-heat exchange fins, 3-positive wiring, 4-negative wiring, 5-special power supply, 6-refrigerant pipes, 7-drainage pipes, 8-frame, 11-hygroscopic material, 12- Positive electrode material, 13-negative electrode material, 14-positive electrode lead, 15-negative electrode lead, 16-water diversion pipe, 17-drainage cavity, 18-fixed frame, 19-insulating bushing, 51-AC/DC power conversion module, 52- Power output module, 53-state detection module, 54-main control module, 100-dehumidification heat exchanger, 101-air inlet, 102-clean dust filter, 103-turbine fan, 104-air duct, 105-deflector, 106-air outlet, 107-chassis.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

Figure 1 and Figure 2 are structural diagrams of two different structures of electro-osmotic refrigeration dehumidification heat exchangers of the present invention. As shown in Figure 1 and Figure 2, the dehumidification heat exchanger 100 is mainly composed of dehumidification fins 1, heat exchange fins 2, positive electrode connection 3, negative electrode connection 4, dedicated power supply 5, refrigerant pipeline 6, drain pipe 7 and frame 8 and other components, the electro-osmotic refrigeration dehumidification heat exchanger shown in Figure 1, the dehumidification fins 1 and the heat exchange fins 2 are alternately arranged and arranged in parallel, and at this time, the dehumidification fins 1 are also provided with refrigerant pipes 6. Into the hole; another electro-osmotic refrigeration dehumidification heat exchanger shown in Figure 2, the dehumidification fins 1 and heat exchange fins 2 are listed in two parallel rows.

As shown in Figures 3 and 4, each dehumidifying fin 1 is composed of two sheets of hygroscopic materials 11 arranged side by side, and the outer surfaces of the two sheets of hygroscopic materials 11 are arranged in parallel with positive electrode materials 12, and the two sheets of hygroscopic materials Negative electrode material 13 is arranged in parallel on the inner surface of 11, and said positive electrode material 12 and negative electrode material 13 are respectively drawn out through positive electrode lead 14 and negative electrode lead 15 and connected in parallel with positive electrode connection 3 and negative electrode connection 4, said positive electrode connection 3 and negative electrode connection 4 It is connected to the special power supply 5, and there is a drainage chamber 17 between the two hygroscopic materials 11, and the water diversion pipe 16 at the bottom of the drainage chamber 17 of each dehumidification fin 1 collects the moisture in the drainage chamber to the drainage pipe 7 Discharge; the same position of each heat exchange fin 2 is provided with several rows of parallel holes for penetrating the refrigerant pipeline 6 . The refrigerant in the refrigeration system flows through the refrigerant pipeline 6 and realizes the heat exchange process between the refrigerant and the air flow through the heat exchange fins 2 . The heat exchange fins 2 can be commonly used aluminum fins.

The hygroscopic material 11 is made of a safe and environmentally friendly hygroscopic material. Preferably, the hygroscopic material can be selected from silica gel or composite hygroscopic material with good hygroscopic performance, environmental protection and pollution-free, or other suitable materials such as molecular sieves and activated alumina. , water-absorbing resin and composite desiccant, etc. The positive electrode material 12 is a special conductive material, which should be able to promote the electrolysis of liquid water and be corrosion resistant. Preferably, titanium wires are used, arranged in parallel, installed on the outer side of the hygroscopic material 11 , and the positive electrode lead 14 is left outside. The negative electrode material 13 is a conductive and corrosion-resistant material, preferably a copper rod, and the copper rod is arranged in parallel on the inner side of the moisture-absorbing material 11, and a negative electrode lead 15 is left outside. The positive lead 14 and the negative lead 15 are connected in parallel through the positive connection 3 and the negative connection 4 respectively, and then connected to the power output module 52 of the dedicated power supply 5 . The dehumidification fins 1 are positioned by a fixing frame 18, and a drainage chamber 17 is left in the middle for storing moisture that migrates from the outside to the inside. The moisture accumulated in the drainage cavity 17 is discharged from the dehumidification heat exchanger through the water diversion pipe 16 and the drainage pipe 7 .

As shown in FIG. 5 , the dedicated power supply 5 is composed of an AC/DC power conversion module 51 , a power output module 52 , a state detection module 53 , a main control module 54 and the like.

The AC/DC power conversion module 51 converts the mains AC220V into a low voltage of 5V and a DC power voltage of 36-40V. The power output module 52 is controlled by the main control module 54, and generates preferred changing pulses as shown in FIG. 7 on the positive material 12 and the negative material 13 on the dehumidification fins. The pulse waveform consists of zero level, positive pulse and negative pulse. Among them, the negative pulse and zero level play a buffer role, and the time is short. The positive pulse plays the role of drainage, and the time is relatively long. Preferably, the power supply can output a constant voltage of 36V at the beginning, and the working time is about 9s, then change the polarity of the voltage, change the original positive pole to negative pole, and the negative pole to positive pole, and the working time is about 0.3s; then power off and output 0V , the duration is about 0.7s. The period T is about 10s. The state detection module 53 is used to collect parameters such as operating current, temperature and relative humidity, and is used to provide information to the main control module 54 . The main control module 54 can have functions such as microprocessor, keys, display and remote monitoring, and can be used to receive and display information, and send control instructions to various parts.

Specifically, the working principle of the electro-osmotic refrigeration dehumidification heat exchanger of the present invention is as follows:

The dehumidification heat exchanger 100 proposed by the present invention has two structures, as shown in Fig. 1 and Fig. 2 respectively. When the air flows through the dehumidification heat exchanger 100 shown in FIG. 3 , the moisture entrained in it is absorbed by the hygroscopic material 11 . Then, the air flows through the heat exchange fins 2 to realize the cooling process. Finally, the cooled and dehumidified air is directionally sprayed into the room through the air outlet 107 . The indoor air is continuously dehumidified and cooled until the state detection module 53 detects that the humidity and temperature of the indoor air reach the set value, and then closes the corresponding processing program. When the air flows through the dehumidification heat exchanger 100 as shown in FIG. 4 , the air realizes cooling and dehumidification processes at the same time.

Of course, the dehumidification and cooling programs can be executed separately, and can be started and stopped at the same time.

As mentioned above, the moisture in the air is absorbed by the hygroscopic material 11 and then electrolyzed by the positive electrode material 12 , and the electrolyzed moisture migrates in the electric field generated by the positive electrode material 12 and the negative electrode material 13 . Moisture continuously accumulates in the drain cavity 17 in the dehumidification fin 1 , and then the moisture is discharged to the outside through the water diversion pipe 16 and the drain pipe 7 . In this way, the regeneration of the hygroscopic material is completed, and the air cooling and dehumidification process is realized.

As shown in Figure 3 is the system work flow chart. When the power of the device is turned on and starts to work, the whole device starts at a constant voltage, the preferred voltage is a safe voltage of 36V, and this voltage acts on the positive electrode material 12 indoors and the negative electrode material 13 outdoors. The electric field of material 13. As shown in FIG. 1 , the water moves directionally toward the negative electrode material 13 . After a certain period of time, the polarity of the positive and negative electrode materials is changed. The action time of this process is short, and the purpose is to improve the efficiency of electroosmosis. After the polarity conversion is completed, it starts to work intermittently, and outputs zero level at this time. After acting in this way for a period of time, the moisture will eventually migrate from indoors to outdoors, achieving the effect of indoor dehumidification.

The present invention also provides a household indoor cooling, dehumidifying and heat-exchanging cabinet machine. As shown in FIG. 8 , it is a schematic diagram of an example of the household indoor cooling, dehumidifying and heat-exchanging cabinet machine of the present invention. It includes a cabinet body, and an air outlet 106 is arranged above the cabinet body , an air inlet 101 is provided under the cabinet, a turbo fan 103 is provided under the cabinet for inhaling air, and the above-mentioned electro-osmotic refrigeration dehumidification heat exchanger 100 is provided above the turbo fan 103, and the air introduced in the turbo fan 103 It enters the electro-osmotic refrigeration dehumidification heat exchanger 100 through the air duct 104 for heat exchange and dehumidification, and finally is discharged through the air outlet 106 . A cleaning dust filter 102 is provided on the rear side of the air inlet 101 . A deflector 105 is also arranged on the cabinet body at the rear side of the electro-osmosis refrigeration dehumidification heat exchanger 100 .

When we start the dehumidification and cooling operations at the same time through the control panel, the indoor air is powered by the turbo fan 103 as shown in FIG. 8 and enters the indoor cabinet through the air inlet 101 . The air first passes through the cleaning dust filter 102 to remove dust particles or PM2.5 and other pollutants in the air, and the filtered air passes through the air duct 104, and then enters the dehumidification heat exchanger 100 proposed by the present invention after being adjusted by the deflector 105 .

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (7)

1. a kind of electro-osmosis refrigerated dehumidification heat exchanger, which is characterized in that it include frame (8), refrigerant tubing (6), setting exist The drainpipe (7) of frame (8) bottom and setting are in several pieces of internal dehumidifying fins (1) of frame (8) and heat exchange fin (2)；

Wherein, every piece of dehumidifying fin (1) is made of side by side the hygroscopic material (11) of two panels plate, the two panels hygroscopic material (11) outer surface, which is arranged in parallel, has positive electrode (12), and the inner surface parallel arrangement of two panels hygroscopic material (11) has cathode Material (13), the positive electrode (12) and negative electrode material (13) are drawn by positive wire (14) and negative wire (15) respectively In parallel with positive terminal (3) and negative terminal (4) afterwards, the positive terminal (3) and negative terminal (4) and power source special (5) are even It connects and realizes electro-osmosis dehumidifying, also there are drainage cavity (17) between the two panels hygroscopic material (11), the hygroscopic material (11) is used From hygroscopic material (11) under absorption moisture, the electric field action which generates between positive electrode (12) and negative electrode material (13) Outside migration to inside and be accumulated in the drainage cavity (17), drainage cavity (17) bottom of every piece of dehumidifying fin (1) is drawn Moisture in drainage cavity is pooled to the drainpipe (7) discharge by water pipe (16)；

The dehumidifying fin (1) and heat exchange fin (2) are arranged in parallel in frame (8) inner vertical, the dehumidifying fin (1) and change Hot fin (2) forms a line and is arranged alternately, and is provided on the dehumidifying fin (1) and heat exchange fin (2) for refrigerant pipe The hole that road (6) penetrates, the refrigerant tubing (6) sequentially pass through the hole on dehumidifying fin (1) and heat exchange fin (2)；Or The dehumidifying fin (1) and heat exchange fin (2) form a line respectively it is arranged in parallel, be only provided on heat exchange fin (2) for system The hole that cryogen pipeline (6) penetrates, the refrigerant tubing (6) pass through from the hole of a column heat exchange fin (2)；It is all It is provided with insulating bushing (19), is equipped on four angles of dehumidifying fin (1) and heat exchange fin (2) solid on the outside of described hole Determine frame (18) to be fixed on frame (8).

2. heat exchanger as described in claim 1, which is characterized in that described hole is arranged in parallel array, and is arranged at every piece The same position of dehumidifying fin (1) or heat exchange fin (2).

3. heat exchanger as described in claim 1, which is characterized in that the hygroscopic material (11) is silica gel, molecular sieve, active oxygen Change aluminium, water-absorbing resin or composite moisture absorption material, the heat exchange fin (2) is aluminum fin-stock.

4. heat exchanger as described in claim 1, which is characterized in that the positive electrode (12) is conductive material；The cathode Material (13) is conductive corrosion-resistant material.

5. heat exchanger as claimed in claim 4, which is characterized in that the positive electrode (12) is titanium silk；The negative electrode material It (13) is copper rod.

6. heat exchanger as described in claim 1, which is characterized in that include that AC/DC power supply is converted inside the power source special (5) Module (51), power output module (52), state detection module (53) and main control module (54).

7. heat exchanger as claimed in claim 6, which is characterized in that the positive terminal (3) and negative terminal (4) and Special electric The power output module (52) in source (5) connects, and power output module (52) change pulse, the waveform of the change pulse is by zero Level, positive pulse and negative pulse composition.