CN112781105A

CN112781105A - Vertical cabinet type indoor unit of air cooler

Info

Publication number: CN112781105A
Application number: CN202011631998.7A
Authority: CN
Inventors: 吴代华
Original assignee: Zhangjiagang Huao Special Refrigeration Equipment Co ltd
Current assignee: Zhangjiagang Huao Special Refrigeration Equipment Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-11

Abstract

The invention relates to a vertical cabinet type indoor unit of an air cooler, which comprises a case, fan blades, an evaporator, a fan, a heat exchange tube and a plurality of heat exchange fins arranged on the heat exchange tube side by side, wherein each heat exchange fin comprises a fin body, an upper bending plate and a lower bending plate which are formed at the top and the bottom of the fin body, a flow guide cavity is formed between every two adjacent fin bodies and between the upper bending plate and the lower bending plate, the flow guide cavities are in a grid shape side by side, and an air outlet formed by the fan blades is covered. On one hand, the grid-shaped flow guide cavity is arranged, so that airflow at an air outlet is prevented from flowing disorderly, and the air outlet efficiency is improved; on the other hand can further carry out the heat transfer again to the gas after the heat transfer through the heat transfer fin that the air outlet was add, and then promote refrigeration effect, in addition, the vertical cabinet formula overall arrangement, in addition the oblique of evaporimeter puts, and the reduction volume, occupation space is little.

Description

Vertical cabinet type indoor unit of air cooler

Technical Field

The invention belongs to the field of air coolers, and particularly relates to a vertical cabinet type indoor unit of an air cooler.

Background

The air cooler is divided into an industrial air cooler and a household air cooler, the industrial air cooler is generally used in a refrigeration house and a cold chain logistics refrigeration environment, the household air cooler is also called as a water-cooled air conditioner, and the air cooler is an evaporative cooling and ventilating unit integrating cooling, ventilating, dust prevention and smell removal.

Among the air coolers in the refrigeration industry, the split vertical cabinet type air cooler is the most common air cooler, and is mainly used for cooling the interior of a mobile equipment cab, an operation room and an electric room (room) with the ambient temperature of less than 75 ℃, so that the interior of the mobile equipment cab, the operation room and the electric room (room) can be kept at 22-35 ℃.

Specifically, the air cooler includes an indoor unit and an outdoor unit, wherein an air path formed by an evaporator and a condenser circulates to perform heat exchange of air under evaporation and condensation of a medium, thereby achieving a cooling or heating effect (that is, the working principle thereof is the same as that of an air conditioner).

However, during cooling, the cold air after heat exchange passes through the air grille and is blown out through the guide of the fan blades under the pumping of the fan, so as to realize indoor cooling.

However, the existing indoor unit has the following obvious defects:

1. because the upper end and the lower end of the grating are open for processing, when gas passes through an airflow channel formed by the grating, the gas can flee out from the upper part and the lower part, and airflow is formed in the air outlet cavity, so that the air outlet efficiency is influenced, and the refrigerating effect is poor;

2. the general vertical cabinet type indoor unit of the air cooler has larger volume and inevitably occupies a large amount of space.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an improved vertical cabinet type indoor unit of an air cooler.

In order to solve the technical problems, the invention adopts the following technical scheme:

a vertical cabinet type indoor unit of an air cooler, comprising:

a case having an intake passage and exhaust fan blades;

an evaporator that exchanges a passing airflow;

a fan for guiding the heat-exchanged air flow to the air outlet,

particularly, the case comprises a heat exchange area positioned at the lower part, an air outlet area positioned at the middle part and an electric element mounting area positioned at the upper part, the evaporator is plate-shaped and is obliquely arranged in the heat exchange area, the fan is positioned in the air outlet area and is communicated with the heat exchange area from the air inlet,

the indoor set is still including setting up exhaust fan leaf inboard and along the heat exchange tube that exhaust fan leaf length direction extends, set up side by side a plurality of heat transfer fins on the heat exchange tube, wherein every heat transfer fin includes the piece body, forms the board of bending on piece body top and bottom and the board of bending down, and every adjacent two the piece body reaches the board of bending and bends down and form a water conservancy diversion chamber between the board, and a plurality of water conservancy diversion chambeies are the grid form side by side, and will the air outlet that exhaust fan leaf formed covers.

Preferably, the medium inlet of the heat exchange tube is communicated with the medium inlet of the evaporator through a flow valve; the medium outlet of the heat exchange tube is communicated with the medium outlet of the evaporator. Therefore, through the mode of reposition of redundant personnel, under same outer machine, earlier through evaporimeter and gas heat transfer, then carry out the heat transfer again to the gas after the heat transfer through the medium of reposition of redundant personnel to improve cryogenic effect.

According to a particular embodiment and preferred aspect of the invention, the ratio of the medium flow entering the heat exchange tubes to the medium flow entering the evaporator is 1: 5 to 10. To ensure the best refrigeration effect under the best flow-dividing mode.

Preferably, the heat exchange tube is a serpentine tube and has a horizontal portion perpendicular to the fin body, and the medium inlet of the heat exchange tube is located above the medium outlet of the heat exchange tube.

Further, the medium inlet of the evaporator is positioned at the same side of the medium inlet of the heat exchange tube, and the medium outlet of the evaporator is positioned at the same side of the medium outlet of the heat exchange tube. Facilitating the flow of the medium.

According to a further embodiment and preferred aspect of the present invention, the guide chamber extends vertically and perpendicularly to the length direction of the exhaust fan blade. At this moment, the effect of heat transfer is best, also is convenient for better air-out simultaneously.

Preferably, the upper bending plate and the lower bending plate are respectively bent inwards from the side edges of the top and the bottom of the sheet body. On one hand, avoidance is formed to facilitate the installation of the components; on the other hand, the possibility of channeling is further reduced by changing the shape of the airflow cavity, and the heat exchange efficiency is further improved.

Furthermore, the upper bending plate and the lower bending plate are fixed on the same side of the same body. Thus, the fins can be integrally formed and processed conveniently.

The section of the flow guide cavity is trapezoidal or hexagonal with two trapezoids communicated from the upper bottom. Therefore, the flow guide cavity can be selected according to the actual air volume and the heat exchange effect so as to enhance the general performance of the component.

In addition, the angle formed by the evaporator and the horizontal direction is 30-60 degrees. The heat exchange of gas is facilitated, and the collection and the discharge of water are also facilitated.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

on one hand, the grid-shaped flow guide cavity is arranged, so that airflow at an air outlet is prevented from flowing disorderly, and the air outlet efficiency is improved; on the other hand can further carry out the heat transfer again to the gas after the heat transfer through the heat transfer fin that the air outlet was add, and then promote refrigeration effect, in addition, the vertical cabinet formula overall arrangement, in addition the oblique of evaporimeter puts, and the reduction volume, occupation space is little.

Drawings

The invention is described in further detail below with reference to the following figures and specific examples:

FIG. 1 is a schematic view of a cabinet type indoor unit of an air cooler according to the present invention;

FIG. 2 is a schematic structural view of FIG. 1 with a partial shell removed;

FIG. 3 is a schematic view showing the communication relationship between the evaporator and the heat exchange tube of the present invention;

FIG. 4 is a schematic front view of a heat exchange tube and heat exchange fins of the present invention;

FIG. 5 is a schematic bottom view of FIG. 4;

wherein: 1. a chassis; 1a, a heat exchange zone; 1b, an air outlet area; 1c, a mounting area;

2. an evaporator; 2a, a medium inlet; 2b, a medium outlet;

3. a fan;

4. a heat exchange pipe; 4a, a medium inlet; 4b, a medium outlet;

5. heat exchange fins; 50. a sheet body; 51. upwards bending the plate; 52. a lower bending plate; q, a flow guide cavity; s, exhaust fan blades;

6. a flow valve; j1, first linker; j2, second linker; p, a water drainage pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and 2, the present embodiment relates to a vertical cabinet type indoor unit of an air cooler, which includes a cabinet 1, an evaporator 2, a fan 3, a heat exchange tube 4, and a plurality of heat exchange fins 5 arranged on the heat exchange tube 4 side by side.

Specifically, the cabinet 1 includes a heat exchange area 1a located at a lower portion, an air outlet area 1b located at a middle portion, and an electric component mounting area 1c located at an upper portion.

In this embodiment, the air inlet channel is located at the bottom of the chassis 1 or correspondingly located at the front of the heat exchange area 1a, the exhaust fan blades s are located at the outlet of the air outlet area 1b and can swing relatively, of course, the flow direction of the outlet air can be changed, and swing blades can be further provided, which belongs to a conventional means and will not be described repeatedly herein.

The evaporator 2 exchanges the passing air flow, and exchanges the passing air flow through the principle of evaporation and heat absorption when refrigerating; on the contrary, when heating, the passing gas exchanges heat by the principle of condensation heat release.

In this example, the evaporator 2 is of the plate type and is disposed obliquely in the heat exchange area.

Specifically, the evaporator 2 forms an angle of 45 ° with the horizontal direction. The heat exchange of gas is facilitated, and the collection and the discharge of water are also facilitated.

And the fan 3 is used for guiding the heat-exchanged air flow to the air outlet, and specifically, the fan 3 is positioned in the air outlet area 1b and communicated with the heat exchange area 1a from the air inlet.

The heat exchange pipe 4 is disposed inside the exhaust fan blade s and extends in a length direction of the exhaust fan blade s.

Referring to fig. 3, in this example, the heat exchange tube 4 is a serpentine tube, the medium inlet 4a of the heat exchange tube 4 is located above the medium outlet 4b of the heat exchange tube 4, and the medium inlet 4a and the medium outlet 4b are located at opposite ends.

The medium inlet 2a of the evaporator 2 is positioned on the same side as the medium inlet 4a of the heat exchange tube 4, and the medium outlet 2b of the evaporator 2 is positioned on the same side as the medium outlet 4b of the heat exchange tube 4. Facilitating the flow of the medium.

A medium inlet 4a of the heat exchange tube 4 is communicated with a medium inlet 2a of the evaporator 2 through a flow valve 6; the medium outlet 4b of the heat exchange tube 4 communicates with the medium outlet 2b of the evaporator 2. Therefore, through the mode of reposition of redundant personnel, under same outer machine, earlier through evaporimeter and gas heat transfer, then carry out the heat transfer again to the gas after the heat transfer through the medium of reposition of redundant personnel to improve cryogenic effect.

In this case, the ratio of the medium flow entering the heat exchange tube 4 to the medium flow entering the evaporator 2 is 1: 6. to ensure the best refrigeration effect under the best flow-dividing mode.

As shown in fig. 4, a plurality of heat exchange fins 5 are arranged side by side on the heat exchange tube 4, wherein each heat exchange fin 5 comprises a fin body 50, an upper bent plate 51 and a lower bent plate 52 formed at the top and bottom of the fin body 50.

Every two adjacent sheet bodies 50, the upper bending plate 51 and the lower bending plate 52 form a flow guide cavity q, and the flow guide cavities q are arranged side by side in a grid shape and cover an air outlet formed by the exhaust fan blades s.

The flow guide cavity q extends vertically and is vertical to the length direction of the exhaust fan blade s. At this moment, the effect of heat transfer is best, also is convenient for better air-out simultaneously.

As shown in fig. 5, the upper bending plate 51 and the lower bending plate 52 are respectively bent inward from the top and bottom sides of the sheet body 50. On one hand, avoidance is formed to facilitate the installation of the components; on the other hand, the possibility of channeling is further reduced by changing the shape of the airflow cavity, and the heat exchange efficiency is further improved.

In this example, the upper bending plate 51 and the lower bending plate 52 are fixed on the same side of the same body 50. Thus, the fins can be integrally formed and processed conveniently.

The section of the flow guide cavity q is trapezoidal or hexagonal with two trapezoids communicated from the upper bottom. Therefore, the flow guide cavity can be selected according to the actual air volume and the heat exchange effect so as to enhance the general performance of the component.

In this example, a first joint j1 and a second joint j2 are formed at one side of the lower portion of the cabinet 1, wherein the first joint j1 is communicated with the flow valve 6, and the second joint j2 is communicated with the medium outlet 2b of the evaporator 2 and the medium outlet 4b of the heat exchange tube 4.

In addition, the above-mentioned cabinet 1 is formed with a drain pipe p for discharging condensed water out of the cabinet 1.

In summary, the implementation process of the present embodiment is as follows:

when refrigeration is needed, the medium enters a compressor according to the following ratio of 1: 6, flow to heat exchange tube 4 and evaporimeter 2 respectively, absorb the heat by the evaporation of medium, under fan 3's effect, will carry out the heat exchange with evaporimeter 2 earlier from the inspiratory gas of inlet channel fast, the gas after the heat exchange gets into the air-out district, carries out the heat exchange by the heat transfer fin that the air outlet set up again, and then improves refrigeration effect by a wide margin.

In the same way, during heating, the principle is opposite to that of the evaporator 2, the heat exchange tube is a condenser, and the gas heat exchange process is heat dissipation.

Therefore, the present embodiment has the following advantages:

1. the grid-shaped flow guide cavity is arranged, so that airflow at an air outlet is prevented from flowing disorderly, and the air outlet efficiency is improved;

2. the heat exchange fins additionally arranged at the air outlet can further exchange heat again for the gas after heat exchange, so that the refrigeration effect is improved;

3. the vertical cabinet type layout and the inclined arrangement of the evaporator reduce the volume and occupy small space.

The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims

1. A vertical cabinet type indoor unit of an air cooler, comprising:

a case having an intake passage and exhaust fan blades;

an evaporator that exchanges a passing airflow;

a fan for guiding the heat-exchanged air flow to the air outlet,

the method is characterized in that:

the case comprises a heat exchange area positioned at the lower part, an air outlet area positioned at the middle part and an electric element mounting area positioned at the upper part, the evaporator is plate-shaped and is obliquely arranged in the heat exchange area, the fan is positioned in the air outlet area and is communicated with the heat exchange area from an air inlet,

indoor set still including setting up exhaust fan leaf inboard and along the heat exchange tube that exhaust fan leaf length direction extends, set up side by side a plurality of heat transfer fins on the heat exchange tube, wherein every heat transfer fin includes the piece body, forms the board of bending on piece body top and bottom and the board of bending down, and every adjacent two the piece body reaches the board of bending and bends down and form a water conservancy diversion chamber between the board, a plurality of water conservancy diversion chambeies are the grid form side by side, and will the air outlet that exhaust fan leaf formed covers.

2. The cabinet indoor unit of an air cooler according to claim 1, wherein: the medium inlet of the heat exchange tube is communicated with the medium inlet of the evaporator through a flow valve; and a medium outlet of the heat exchange tube is communicated with a medium outlet of the evaporator.

3. The cabinet indoor unit of an air cooler according to claim 2, wherein: the ratio of the medium flow entering the heat exchange tube to the medium flow entering the evaporator is 1: 5 to 10.

4. The cabinet indoor unit of an air cooler according to claim 3, wherein: the heat exchange tube is a coiled tube and is provided with a horizontal part vertical to the fin body, and a medium inlet of the heat exchange tube is positioned above a medium outlet of the heat exchange tube.

5. The cabinet indoor unit of an air cooler according to claim 4, wherein: the medium inlet of the evaporator is positioned at the same side of the medium inlet of the heat exchange tube, and the medium outlet of the evaporator is positioned at the same side of the medium outlet of the heat exchange tube.

6. The cabinet indoor unit of an air cooler according to claim 1, wherein: the flow guide cavity extends vertically and is vertical to the length direction of the exhaust fan blade.

7. The cabinet indoor unit of an air cooler according to claim 6, wherein: the upper bending plate and the lower bending plate are respectively arranged from the top and the side edge of the bottom of the sheet body in an inward bending mode.

8. The cabinet indoor unit of an air cooler according to claim 7, wherein: the upper bending plate and the lower bending plate are fixed on the same side of the same sheet body.

9. The cabinet indoor unit of an air cooler according to claim 8, wherein: the section of the flow guide cavity is trapezoidal or hexagonal with two trapezoids communicated from the upper bottom.

10. The cabinet indoor unit of an air cooler according to claim 1, wherein: the angle formed by the evaporator and the horizontal direction is 30-60 degrees.