阅读说明：本技术 一种利用冷凝水的换热装置 (Heat exchange device utilizing condensed water ) 是由 徐华志 刘迎文 双婧婧 于 2019-09-30 设计创作，主要内容包括：本发明公开一种利用冷凝水的换热装置,包括渗透膜组、换热翅片、支撑板条、冷凝水进水管和冷凝水出水管；渗透膜组将IPM模块及其区域的换热翅片全部密封,空调运行时产生的冷凝水由冷凝水进水管进入渗透膜组,渗透膜组材料为负压渗透膜,冷凝水在渗透膜组中蒸发为水蒸汽后,水蒸汽从膜内高压侧渗透至膜外低压侧,将IPM模块工作产生的热量带走；同时由于膜内侧吸收高温IPM模块热量后升温,内外温度差所造成的饱和压力差正向促进膜内冷凝水渗透至膜外,利用空调冷凝水蒸发吸热为高温IPM模块散热,通过渗透膜组的渗透作用,将外机冷凝水蒸发,利用蒸发潜热进行换热元件的散热,换热装置结构简单,没有额外功耗。(The invention discloses a heat exchange device utilizing condensed water, which comprises a permeable membrane group, heat exchange fins, a support lath, a condensed water inlet pipe and a condensed water outlet pipe; the IPM module and the heat exchange fins in the region of the IPM module are completely sealed by the permeable membrane group, condensed water generated during the operation of the air conditioner enters the permeable membrane group through a condensed water inlet pipe, the permeable membrane group is made of a negative pressure permeable membrane, and after the condensed water is evaporated into water vapor in the permeable membrane group, the water vapor permeates from the high-pressure side in the membrane to the low-pressure side outside the membrane so as to take away heat generated by the operation of the IPM module; meanwhile, the inner side of the membrane absorbs the heat of the high-temperature IPM module and then is heated, the saturated pressure difference caused by the internal and external temperature difference positively promotes the condensed water in the membrane to permeate outside the membrane, the condensed water of the air conditioner is evaporated and absorbed for heat dissipation of the high-temperature IPM module, the condensed water of the external unit is evaporated through the permeation effect of the permeable membrane group, the heat dissipation of the heat exchange element is carried out by utilizing the latent heat of evaporation, and the heat exchange device is simple in structure and free of extra.)

1. A heat exchange device using condensed water is characterized in that: comprises a permeable membrane group (1), heat exchange fins (3), a support lath (4), a condensed water inlet pipe (5) and a condensed water outlet pipe (6);

the heat exchange fins (3) are arranged on the electric control plate and distributed around the IPM module (7), the permeable membrane group (1) is supported and fixed through the supporting lath (4), and the IPM module (7) and the heat exchange fins (3) in the region of the IPM module are completely sealed and coated; the infiltration membrane group (1) is connected with a condensate water inlet pipe (5) which is vertically arranged, one side of the condensate water inlet pipe (5) is connected with a condensate water outlet pipe (6) which is communicated with the condensate water inlet pipe, condensate water generated during the operation of an air conditioner enters the infiltration membrane group (1) through the condensate water inlet pipe (5), and redundant water flows out of the bypass condensate water outlet pipe (6) after the infiltration membrane group (1) is filled; the infiltration membrane group material is a negative pressure infiltration membrane, condensed water is infiltrated to the low pressure side outside the membrane from the high pressure side in the membrane after being evaporated into water vapor in the infiltration membrane group (1), and the heat generated by the work of the IPM module is taken away by the evaporation and heat absorption of the condensed water.

2. The heat exchange device using condensed water according to claim 1, wherein: and the negative pressure permeable membrane is a single-layer PFTE membrane.

3. The heat exchange device using condensed water according to claim 2, wherein: still include air suction fan (2), infiltration membrane group (1) and heat transfer fin (3) parallel arrangement are in air suction fan (2) the place ahead.

4. A heat exchanging apparatus using condensed water according to claim 3, wherein: the air outlet direction of the air suction fan (2) is perpendicular to the permeable membrane group (1).

5. A heat exchange apparatus using condensed water according to any one of claims 1 to 4, wherein: the condensed water outlet pipe (6) is connected with a liquid storage tank.

6. The heat exchange device using condensed water according to claim 5, wherein: the heat exchange fins (3) are H-shaped fins and are attached to the electric control plate.

7. The heat exchange device using condensed water according to claim 5, wherein: the heat exchange fins (3) are saw-toothed fins or Y-shaped bionic fins.

8. The heat exchange device using condensed water according to claim 5, wherein: the heat exchange fins (3) are corrugated fins.

9. The heat exchange device using condensed water according to claim 5, wherein: the supporting lath is made of aluminum alloy.

10. The heat exchange device using condensed water according to claim 5, wherein: the air suction fan (2) is an air conditioner external unit fan.

Technical Field

The invention belongs to the technical field of air conditioners, and designs a device and a method for strengthening heat exchange by utilizing condensed water.

Background

An intelligent power module (IPM for short) positioned in an outdoor unit of the variable frequency air conditioner integrates an output power element IGBT, a drive circuit and a plurality of protection circuits in the same module, and is a highly integrated intelligent power integrated circuit. The IPM module gains a bigger and bigger market with high reliability and convenient use, is particularly suitable for a frequency converter of a driving motor and various inverter power supplies, and is an ideal power electronic device for frequency conversion speed regulation, servo driving and frequency conversion household appliances.

However, the IPM module generates a large amount of heat during operation, the surface temperature of the device is usually higher than 80 ℃, and the surface temperature can even reach 100 ℃ under the working condition of operation and refrigeration in summer. If no external cold source controls the IPM module within a reasonable temperature range, the performance of the IPM module may be affected by high temperature, so that the compressor cannot reach the running power; in severe cases, the IPM module may even be burned to shut down the air conditioner.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a heat exchange device utilizing condensed water, which utilizes the condensed water of an air conditioner external unit to evaporate and dissipate heat, improves the temperature environment of an IPM module in operation and ensures the normal operation of the air conditioner.

In order to achieve the purpose, the invention adopts the technical scheme that:

a heat exchange device utilizing condensed water comprises a permeable membrane group, heat exchange fins, supporting laths, a condensed water inlet pipe and a condensed water outlet pipe;

the heat exchange fins are arranged on the electric control plate and distributed around the IPM module, and the permeation membrane group is supported and fixed through the supporting lath to hermetically coat the IPM module and the heat exchange fins in the region of the IPM module; the infiltration membrane group is connected with a condensate water inlet pipe which is vertically arranged, one side of the condensate water inlet pipe is connected with a condensate water outlet pipe which is communicated with the condensate water inlet pipe, condensate water generated during the operation of the air conditioner enters the infiltration membrane group through the condensate water inlet pipe, and redundant water flows out of the bypass condensate water outlet pipe after the infiltration membrane group is filled; the infiltration membrane group material is a negative pressure infiltration membrane, condensed water is infiltrated to the low pressure side outside the membrane from the high pressure side in the membrane after being evaporated into water vapor in the infiltration membrane group, and the heat generated by the work of the IPM module is taken away by the evaporation and heat absorption of the condensed water.

Further, the negative pressure permeable membrane is a single-layer PFTE membrane.

Further, still include the suction fan, the infiltration membrane group arranges in front of the suction fan with the heat transfer fin is parallel.

Furthermore, the air outlet direction of the air suction fan is perpendicular to the permeable membrane group.

Further, the condensed water outlet pipe is connected with a liquid storage tank.

Furthermore, the heat exchange fins are H-shaped fins and are attached to the electric control plate.

Further, the heat exchange fins are saw-toothed fins or Y-shaped bionic fins.

Further, the heat exchange fins are corrugated fins.

Further, the supporting lath is made of aluminum alloy.

Further, the air suction fan is an air conditioner external unit fan.

The invention has the following beneficial effects:

the invention relates to a heat exchange device utilizing condensed water, which comprises a permeable membrane group, heat exchange fins, supporting laths, a condensed water inlet pipe and a condensed water outlet pipe; the IPM module and the heat exchange fins in the region of the IPM module are completely sealed and coated by the permeable membrane group, condensed water generated during the operation of the air conditioner enters the permeable membrane group through the condensed water inlet pipe, the permeable membrane group is made of a negative pressure permeable membrane, the condensed water is evaporated into water vapor in the permeable membrane group and then permeates from the high-pressure side in the membrane to the low-pressure side outside the membrane, and the condensed water absorbs heat to take away heat generated during the operation of the IPM module.

Due to the partial pressure difference of water vapor inside and outside the membrane, the water vapor permeates from the high-pressure side inside the membrane to the low-pressure side outside the membrane, and the heat generated by the operation of the IPM module inside the membrane is absorbed in the evaporation process and is taken away to the outside of the membrane; meanwhile, the inner side of the membrane absorbs the heat of the high-temperature IPM module and then is heated, and the saturated pressure difference caused by the internal and external temperature difference positively promotes the condensed water in the membrane to permeate to the outside of the membrane. The heat of the air conditioner condensate water is absorbed by evaporation to dissipate heat of the high-temperature IPM module, the outer machine condensate water is evaporated by the permeation action of the permeation membrane group, and the heat dissipation of the heat exchange element is performed by using the latent heat of evaporation. The heat exchange device has a simple structure and no extra power consumption.

The invention provides a novel cooling mode, the IPM module is used for dissipating heat by utilizing the evaporation and heat absorption of air conditioner condensed water through the osmosis membrane group, the outdoor unit condensed water is evaporated by utilizing the osmosis effect of the osmosis membrane group, the heat dissipation of the heat exchange element is carried out by utilizing the latent heat of evaporation, and the heat exchange device has a simple structure and does not have extra power consumption.

The invention can utilize the low-temperature condensed water generated in the running process of the air conditioner external unit to cool the high-temperature electric control element in the air conditioner external unit, and has the characteristics of high heat dissipation efficiency, easy installation and the like; meanwhile, the characteristic of the permeable membrane group can ensure the unidirectional evaporation of water, avoid the direct contact with an electric control element in operation and ensure the normal operation of the machine; the liquid water in the membrane absorbs the heat generated by the high-temperature IPM and then is heated up, and the water vapor is promoted to permeate to the outside of the membrane in the positive direction

The device has good water vapor transmission capacity, and can provide about 130W of cold energy per hour by calculating with 1P computer of a household split air conditioner and operating the summer refrigeration working condition, wherein the water temperature in the film is 50 ℃, the water vapor transmission capacity per hour can reach 830g, and the outlet condensed water temperature is 18 ℃.

The device also comprises an air suction fan, the air of the air suction fan generates negative pressure outside the membrane after blowing air to the membrane, so that water vapor can escape from the inside of the permeable membrane group, the water vapor can be diffused more quickly, and the heat absorption effect is outstanding.

Drawings

FIG. 1 is a schematic view of the structure of the apparatus of the present invention

FIG. 2 is a schematic view of a serrated fin structure of the present invention

FIG. 3 is a schematic view of the Y-shaped bionic fin structure of the present invention

FIG. 4 is a schematic view of the corrugated fin structure of the present invention

Wherein: the device comprises a 1-osmotic membrane group, a 2-suction fan, a 3-heat exchange fin, a 4-supporting plate strip, a 5-condensed water inlet pipe, a 6-condensed water outlet pipe, a 7-IPM module and an 8-external machine heat exchanger.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention thereto.

Referring to fig. 1, the heat exchanger using condensed water according to the present invention includes a permeable membrane module 1, an air suction fan 2, heat exchange fins 3, support strips 4, a condensed water inlet pipe 5, a condensed water outlet pipe 6, an IPM module 7, and an external unit heat exchanger 8.

Supporting laths 4 used for shaping are arranged on the periphery of the permeable membrane group 1, heat exchange fins 3 are arranged on the electric control board and distributed around the IPM module 7, the permeable membrane group 1 supports the IPM module 7 and the heat exchange fins 3 in the region through the supporting laths 4 to be completely and hermetically coated, and the permeable membrane group 1 is attached to the IPM module 7 and the heat exchange fins 3. The infiltration membrane group 1 is connected with the comdenstion water inlet tube 5 of vertical setting, and comdenstion water inlet tube 5 one side is connected with rather than communicating comdenstion water outlet pipe 6, and the comdenstion water that produces during the air conditioner operation gets into infiltration membrane group 1 by comdenstion water inlet tube 5, is full of the unnecessary water of infiltration membrane group 1 back and flows from bypass comdenstion water outlet pipe 6 exit.

The infiltration membrane group is the negative pressure osmotic membrane, and used material is the individual layer PFTE membrane, and surface energy impels the water evaporation to vapor, and when the both sides of membrane appeared the difference because of the partial pressure of vapor, the inboard vapor of higher pressure can pierce through the membrane and get into the outside, and because the interior liquid water of membrane absorbs behind the high temperature IPM heat this moment and heaies up, impels the evaporation of water again to increase the inside and outside partial pressure difference of membrane, promote vapor to the membrane outer infiltration.

Liquid condensate water enters the permeation membrane group 1 to be evaporated into water vapor and then permeates from the high-pressure side inside the membrane to the low-pressure side outside the membrane, and the condensate water is evaporated to absorb heat to take away heat generated by the operation of the IPM module, so that the IPM module is maintained at a normal operating temperature. The arrangement can be used for specifically cooling the high-temperature IPM assembly part on the electric control board. When the integral temperature of the electric control plate is lower, the convective heat exchange of the heat exchange fins can meet the heat dissipation requirement; when the local temperature of the IPM component is too high along with the increase of the operation time of the air conditioner, a better local heat dissipation effect is provided through the acceleration of the water evaporation rate in the permeation membrane module.

The permeable membrane group 1 and the heat exchange fins 3 are arranged in parallel in front of the air suction fan 2, the air suction fan is an air conditioner external fan, negative pressure is generated outside the membrane by blowing air on the membrane through the air suction fan, water vapor is favorably escaped from the permeable membrane group 1, the air suction fan and the permeable membrane group are vertically arranged, the water vapor is quickly dissipated, and the heat exchange efficiency is highest at the moment.

Except this design, the condensate outlet pipe 6 of bypass is connected with the liquid storage pot, and unnecessary comdenstion water can be stored in the liquid storage pot after discharging from condensate outlet pipe 6, can flow back to in the infiltration membrane group 1 when the infiltration membrane group 1 normal water is not enough to improve the problem that the air conditioner produces the volume and reduces gradually along with the increase of operating time.

The heat exchange fins 3 are H-shaped fins and are attached to the heating electric control plate, and the fins at the IPM module are subjected to encryption treatment; the supporting lath is made of aluminum alloy.

As shown in fig. 2 to 4, the heat exchange fins 3 are window fins, and the heat exchange fins 3 may be sawtooth fins, Y-shaped bionic fins, or corrugated fins, so as to increase the heat exchange area with the condensed water.

The device has good water vapor transmission capacity, and can provide about 130W of cold energy per hour by calculating with 1P computer of a household split air conditioner and operating the summer refrigeration working condition, wherein the water temperature in the film is 50 ℃, the water vapor transmission capacity per hour can reach 830g, and the outlet condensed water temperature is 18 ℃.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.