Heat exchanger assembly with wet film structure

Abstract

The utility model discloses a heat exchanger assembly with a wet film structure, which is characterized in that a heat exchanger is arranged in a support frame, and a pipeline joint assembly is further arranged on the outer side of the support frame; a water pan is arranged below the heat exchanger, an air supply fan is arranged on the rear side of the heat exchanger, a wet film humidifier is arranged between the lower portion of the heat exchanger and the water pan, and condensate water generated by the air conditioning equipment can be used as a humidification water source. A water supply pipe is arranged in the wet film humidifier; according to the scheme, part of copper pipelines are removed from the lower part of the heat exchanger, so that the water inlet of the heat exchanger is lower than all copper pipelines, and drainage is facilitated; an air inlet and an air outlet are formed in the wet film humidifier, an adjustable baffle is arranged at the air inlet or the air outlet, and auxiliary humidification treatment can be carried out on the equipment through manual control.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger assembly technology, and in particular to a heat exchanger assembly with a wet film structure. Background Technology

[0002] As a well-known structure in the air conditioning industry, traditional fan coil units only have two functions: cooling and heating. Their basic principle is to blow the high or low temperature inside the coil to the outside through a fan, which can only achieve temperature adjustment and usually cannot achieve humidification.

[0003] When existing fan coil units are used for cooling, the condensate produced is directly discharged to the outside, and the heat exchange capacity of this condensate is wasted, resulting in energy waste.

[0004] Furthermore, there is a condensate pan on the lower side of the fan coil unit. In order to facilitate the connection of the heat exchanger inlet pipe, the inlet is higher than the pan, which results in some copper tubes of the heat exchanger being lower than the inlet, making it difficult for the internal water to drain.

[0005] In view of the above-disclosed drawbacks, the technical problem to be solved by this utility model is how to improve the technology and design a heat exchanger component with humidification function, the purpose of which is to realize the export of liquid inside the fan coil unit, and then expand the humidification function of the fan coil unit through the humidification component. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model provides a heat exchanger assembly with a wet film structure. By setting a humidification component, the humidification function can be selectively selected, and the condensate generated by the fan coil unit can be used for indoor auxiliary humidification during the heating process.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A heat exchanger assembly with a wet film structure includes a support frame, a heat exchanger disposed inside the support frame, and a pipe joint assembly disposed outside the support frame. A water receiving tray is disposed below the heat exchanger, a blower is disposed behind the heat exchanger, and a wet film humidifier is disposed between the heat exchanger and the water receiving tray. A water supply pipe is disposed inside the wet film humidifier. The above solution removes part of the copper pipes at the bottom of the heat exchanger, thus ensuring that the water inlet of the heat exchanger is lower than all copper pipes, facilitating drainage.

[0009] The wet film humidifier is provided with an air inlet and an air outlet, and an adjustable baffle is provided at the air inlet or the air outlet.

[0010] Above the water receiving tray, on the air inlet side of the heat exchanger, a baffle plate is provided to guide the airflow to the heat exchanger and the wet film humidifier. When the adjustable baffle is open, air can pass through both the heat exchanger and the wet film humidifier; when the baffle is closed, air only passes through the heat exchanger.

[0011] The wet film humidifier includes a square frame structure with all four sides open, and several wet films are spaced apart inside.

[0012] The wet membrane is made of plant fiber material, which is treated with a special resin and sintered to form a corrugated, cross-overlaid polymer composite material with extremely strong water absorption. The water supply pipe is the same length as the wet membrane, and small water outlet holes are arranged at intervals at the top to allow water from the water supply pipe to flow out and moisten the wet membrane. When the water supply pipe is not supplying water, the condensate generated by the upper heat exchanger during cooling can be absorbed by the wet membrane.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a heat exchanger assembly with a wet film structure, in which a heat exchanger is installed inside a support frame, and a pipe joint assembly is installed on the outside of the support frame; a water receiving tray is installed below the heat exchanger, and a blower is installed at the rear of the heat exchanger; a wet film humidifier is installed between the heat exchanger and the water receiving tray, and a water supply pipe is installed inside the wet film humidifier; the wet film humidifier is located at the lower part of the heat exchanger and can use the condensate generated by the air conditioning equipment as a humidification water source; the above solution removes part of the copper pipes at the lower part of the heat exchanger, thus ensuring that the water inlet of the heat exchanger is lower than all copper pipes, which facilitates drainage; the wet film humidifier is provided with an air inlet and an air outlet, and an adjustable baffle is provided at the air inlet or air outlet, which can be manually controlled to provide auxiliary humidification for this equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 Schematic diagram of the working structure of the baffle Figure I ;

[0016] Figure 3 Schematic diagram of the working structure of the baffle Figure II ;

[0017] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal main structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the heat exchanger;

[0020] Figure 7This is a schematic diagram of the three-dimensional structure of a wet film humidifier;

[0021] Figure 8 This is a schematic diagram of the main structure of a wet film humidifier.

[0022] Figure 9 This is a schematic diagram of the three-dimensional structure of the adjustable baffle.

[0023] In the attached diagram, 1 is the support frame, 2 is the pipe joint assembly, 21 is the pipe joint, 22 is the water supply pipe, 3 is the heat exchanger, 4 is the protective end cap, 5 is the wet film humidifier, 51 is the square frame, 52 is the wet film, 53 is the water supply pipe, 6 is the adjustable baffle, 61 is the fixed shaft, 62 is the plate, 7 is the water receiving tray, 8 is the guide plate, and 9 is the air supply fan. Detailed Implementation

[0024] The present invention will be described in detail below through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the following technical solutions. The scope of protection of this patent application is determined by the claims.

[0025] Example 1: As Figure 1 As shown, a heat exchanger assembly with a wet film structure includes support frames 1 at both ends, with heat exchangers 3 housed inside the support frames 1. Pipe joint assemblies 2 are also provided on the outer sides of the support frames 1, with pipe joints 21 inside the pipe joint assemblies 2. A water collection tray 7 is located below the heat exchanger 3, and a blower 9 is located behind the heat exchanger 3. A wet film humidifier 5 is located between the heat exchanger 3 and the water collection tray 7. The wet film humidifier 5 is a square frame 51 with all four sides open, and several wet films 52 are spaced apart inside. The wet films 52 are made of plant fiber material, treated with a special resin and sintered to form a corrugated, cross-overlapping polymer composite material with extremely strong water absorption. Figure 7 , 8 As shown, the wet film humidifier 5 is equipped with a water supply pipe 53 inside. The water supply pipe 53 and the wet film 52 are of the same length. Small water outlet holes are arranged at intervals on the upper part of the water supply pipe 53 so that water from the water supply pipe can flow out to moisten the wet film. In this embodiment, an external water supply can be selected, or the heat exchanger 3 can be connected to the wet film 52. When the external water supply pipe does not supply water, the condensate generated by the upper heat exchanger 3 during cooling can be absorbed by the wet film 52 and then blown into the room.

[0026] In a further technological extension, the above solution removes part of the copper pipes from the lower part of the heat exchanger 3. After removing part of the copper pipes, the lower part is empty, and the wet film humidifier 5 can be placed here. Therefore, it can be ensured that the water inlet of the heat exchanger 3 is lower than all the copper pipes, which facilitates drainage.

[0027] The square frame 51 of the wet film humidifier 5 has four open sides, two of which are used as air inlets and air outlets. In this embodiment, an adjustable baffle 6 is provided at the air inlet or air outlet. The adjustable baffle includes a fixed shaft 61 and a plate 62. The fixed shaft 61 can be connected to an external driving component. In this embodiment, the external driving component is a motor. Under the drive of the motor, the plate 62 is flipped, thereby blocking the air inlet or air outlet.

[0028] Example 2: This utility model can provide four working modes during operation, namely cooling mode, dehumidification mode, heating mode, and heating and humidification mode.

[0029] 1. Cooling mode

[0030] When heat exchanger 3 is supplying cooling, the adjustable baffle 6 is opened and the external water supply pipe is closed. Air passes through both heat exchanger 3 and wet film humidifier 5. The condensate produced by the upper heat exchanger 3 is directly absorbed by the wet film. At this time, the cooling capacity is provided by the heat exchange of the upper heat exchanger 3 and the heat absorption of condensate evaporation in the lower wet film 52, which utilizes the cooling capacity of the condensate and is more energy-efficient.

[0031] 2. Dehumidification mode

[0032] When the fan coil unit is dehumidifying, the adjustable baffle 6 is closed, and the water supply line is shut off. Air passes through the heat exchanger 3 (the fan is generally at a low speed during dehumidification). At this time, the condensate produced by the heat exchanger 3 flows down to the wet film 52 on the lower side. When the wet film 52 is saturated with water, it is discharged from the unit.

[0033] 3. Heating Mode

[0034] When the fan coil unit is supplying heat, the adjustable baffle 6 is closed, and the water supply line is shut off. Air passes through the heat exchanger section. To avoid blowing cold air during heating, the air volume is generally lower during heating than during cooling.

[0035] 4. Heating and humidification mode

[0036] When the fan coil unit is providing heating and humidification, the adjustable baffle 6 is opened, and the water supply line is opened. Air passes through both the heat exchanger 3 and the wet film 52, and external water supply moistens the wet film 52, evaporating to humidify the air. To avoid excessive evaporation affecting the heating effect, the water supply temperature can be appropriately increased, the humidification water supply can be reduced appropriately, or the heating mode can be run for a period of time before switching to the heating and humidification mode.

Claims

1. A heat exchanger assembly with a wet film structure, characterized in that: It includes a support frame, inside which a heat exchanger is installed, and on the outside of the support frame a pipe joint assembly; a water receiving tray is installed below the heat exchanger, a blower is installed behind the heat exchanger, and a wet film humidifier is installed between the heat exchanger and the water receiving tray, with a water supply pipe installed inside the wet film humidifier. The wet film humidifier is provided with an air inlet and an air outlet, and an adjustable baffle is provided at the air inlet or the air outlet.

2. A heat exchanger assembly with a wet film structure as described in claim 1, characterized in that: Above the water receiving tray, on the air inlet side of the heat exchanger, a guide plate is provided, which directs the airflow to the heat exchanger and the wet film humidifier.

3. A heat exchanger assembly with a wet film structure as described in claim 1, characterized in that: The wet film humidifier includes a square frame structure with all four sides open, and several wet films are spaced apart inside.

4. A heat exchanger assembly with a wet film structure as described in claim 3, characterized in that: The wet membrane is made of plant fiber material and is arranged in a corrugated plate shape with overlapping sections; the water supply pipe is the same length as the wet membrane and has small water outlet holes arranged at intervals on the upper part.

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