Dehumidifying heat recovery air handling unit

Abstract

A heat pipe heat exchanger and a transverse partition plate are arranged in a box body in a crossed mode, the interior of the box body is divided into four cavities through the transverse partition plate and the heat pipe heat exchanger, the four cavities are provided with a draught fan I, a draught fan II, a surface air cooler and an intercommunication valve respectively, and the intercommunication valve penetrates through the transverse partition plate. An air valve I and an air valve II are arranged on the air inlet side of the fan I; an air valve III and an air valve IV are arranged on the air outlet side of the fan II; an indoor air supply valve is arranged on the rear side of the surface air cooler; an indoor air return valve is further arranged on the side portion of the heat pipe heat exchanger. Through simple structure arrangement and matched use of all the valves, two working modes can be achieved, one mode is a fresh air ventilator mode, outdoor fresh air is introduced and cooled, meanwhile, energy recovery is conducted on air exhausted out of a room, the other mode is an indoor circulation mode, the indoor humidity can be reduced, meanwhile, the air supply temperature can be increased, and the air supply efficiency is improved. The air supply comfort can be improved under the condition that energy consumption is not increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange equipment technical field especially, and it is a kind of dehumidification heat recovery air handling unit. BACKGROUND

[0002] With the continuous development of society, people's demand for working and living environment is increasing, air conditioning changes from the simple temperature regulation to temperature and humidity double control regulation to achieve more comfortable living environment.

[0003] In the prior art, air handling unit is used for indoor temperature regulation function; dehumidifier is used for indoor humidity reduction regulation function; fresh air ventilator is used for indoor fresh air supplement function, and each type of unit has single function, if these units are stacked and applied in the same air conditioning system, it will cause problems such as large equipment space occupation, complex mutual coordination control and is not conducive to energy saving in the system.

[0004] Therefore, there is no dehumidification heat recovery air handling unit that can realize the above-mentioned multiple functions in the prior art. As a person skilled in the art, it is urgent to design a dehumidification heat recovery air handling unit that can adjust the temperature and humidity of indoor air through air conditioning system while having ventilation, so as to overcome the drawbacks of the prior art. UTILITY MODEL CONTENTS

[0005] To overcome the shortcomings of the prior art, the utility model provides a dehumidification heat recovery air handling unit, which integrates temperature regulation, dehumidification regulation and fresh air supplement function, adjusts different air inlet and outlet directions by controlling the air valve and fan of the unit according to the required regulation of the environment, so that the unit realizes the functions of temperature regulation, dehumidification regulation and fresh air supplement.

[0006] The technical solution adopted by the utility model to solve the technical problems is:

[0007] A dehumidification heat recovery air handling unit, which comprises a box body, a heat pipe heat exchanger and a transverse partition plate are arranged in the box body, the interior is divided into four chambers by the transverse partition plate and the heat pipe heat exchanger, a fan I and a fan II, a surface cooler and a communication valve are arranged in the four chambers respectively, and the transverse partition plate is penetrated by the communication valve.

[0008] The air inlet side of the fan I is provided with air valve I and air valve II; the air outlet side of the fan II is provided with air valve III and air valve IV.

[0009] The right side of the surface cooler is provided with an indoor air supply valve; the side of the heat pipe heat exchanger is further provided with an indoor return air valve.

[0010] The air valve II is connected with the indoor air supply valve and pipe to the indoor air return port.

[0011] The air valve IV is connected with the indoor air supply valve and pipe to the indoor air supply port.

[0012] The air valve I and the air valve III are connected with the outdoor to realize the outdoor air supply.

[0013] The heat pipe heat exchanger comprises a guide frame, a plurality of heat conduction pipes are arranged in the guide frame in a slanting mode, and the heat conduction pipes are spaced into two parts at the partition plate and arranged in the right air flow cavity and the left air flow cavity respectively.

[0014] The beneficial effects of the above structure are as follows: the heat pipe heat exchanger and the horizontal partition plate are arranged in the box body in a cross mode, the inside is spaced into four cavities through the horizontal partition plate and the heat pipe heat exchanger, the fan I and the fan II and the surface cooler and the intercommunication valve are arranged in the four cavities respectively, the intercommunication valve penetrates the horizontal partition plate, the air valve I and the air valve II are arranged on the air inlet side of the fan I, the air valve III and the air valve IV are arranged on the air outlet side of the fan II, the indoor air supply valve is arranged on the rear side of the surface cooler, and the indoor air return valve is further arranged on the side of the heat pipe heat exchanger. Through the structure arrangement, two working modes can be realized through simple structure arrangement and valve group matching, one is a fresh air ventilator mode, outdoor fresh air is introduced and cooled, and the energy of the air discharged to the outdoor is recycled, and the other is an indoor circulation mode, the indoor humidity can be reduced and the air supply temperature can be increased, and the air supply comfort degree can be increased without increasing the energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a connection structure schematic view of the utility model;

[0016] Figure 2 It is an outdoor air supply structure schematic view of the utility model;

[0017] Figure 3 It is an indoor circulation air supply structure schematic view of the utility model;

[0018] Figure 4 It is a heat pipe heat exchanger structure schematic view;

[0019] In the drawings, 1 is a box body, 11 is a horizontal partition plate, 12 is an air valve IV, 13 is an air valve III, 14 is an air valve I, 15 is an air valve II, 16 is an indoor air supply valve, 17 is an indoor air return valve, 2 is an intercommunication valve, 3 is a fan I, 4 is a fan II, 5 is a surface cooler, 6 is an indoor air return pipe, 7 is an indoor air supply pipe, 8 is an indoor, 81 is an indoor air supply port, 82 is an indoor air return port, 9 is a heat pipe heat exchanger, 91 is a guide frame, 92 is a heat conduction pipe, 93 is a partition plate, and 10 is a wall body. DETAILED DESCRIPTION

[0020] The following detailed description of the present application is made through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification. However, it should be noted that the following specific embodiments do not technically limit the present technical solution, and those skilled in the art can further extend the technology under the guidance of the following technical solution. The protection scope of the present patent application is subject to the claims.

[0021] Example 1: A dehumidification heat recovery air handling unit, as shown in FIG. 1, includes a square structure box 1, a heat pipe heat exchanger 9 and a transverse partition 11 are arranged in the box 1, the interior is divided into four chambers by the transverse partition 11 and the heat pipe heat exchanger 9, the transverse partition 11 is divided into left and right air chambers. Figure 1

[0022] A fan I 3 and a surface cooler 5 are arranged in the right air chamber, the fan I 3 and the surface cooler 5 are arranged on the left and right sides of the heat pipe heat exchanger 9. A fan II 4 is arranged in the left air chamber. A mutual valve 2 is arranged on the transverse partition 11 on the right side of the heat pipe heat exchanger 9 to penetrate the left and right air chambers.

[0023] An air valve I 14 and an air valve II 15 are arranged on the air inlet side of the fan I 3; an air valve III 13 and an air valve IV 14 are arranged on the air outlet side of the fan II 4; an indoor air supply valve 16 is arranged on the right side of the surface cooler 5; an indoor return air valve 17 is further arranged on the right side of the heat pipe heat exchanger 9. The air valve II 15 and the indoor air supply valve 16 are connected to the indoor return air outlet 82. The air valve IV 14 and the indoor air supply valve 16 are connected to the indoor air supply outlet 81. The air valve I 14 and the air valve III 13 are connected to the outdoor air supply.

[0024] Further, as shown in FIG. 2, the heat pipe heat exchanger 9 includes a flow guide frame 91, a plurality of heat conducting pipes 92 are arranged obliquely inside the flow guide frame 91, the heat conducting pipes 92 are divided into two parts at the partition 93 and arranged in the right air chamber and the left air chamber, respectively. Figure 4

[0025] The heat pipe heat exchanger 9 is divided into two independent ventilation sections by the middle partition 93, Figure 4 the left side of the middle partition 93 is a high-temperature gas ventilation section, the right side is a low-temperature gas ventilation section, and the heat conducting pipes 92 are full-length in size and penetrate the middle partition 93. The heat conducting pipes 92 have a heat exchange medium inside, Figure 4 ​​The heat exchange medium in the left heat conducting pipe 92 exists in liquid state, and is changed into gaseous state after absorbing the heat of the high temperature gas, and is discharged to the right side of the heat conducting pipe 92, and the low temperature gas is condensed into liquid state after heat release, and flows back to the left side along the pipe wall of the heat conducting pipe 92. The heat transfer between the left and right ventilation air paths can be realized without mixing. Embodiment

[0026] The air valve III 13, the air valve I 14, the indoor air supply valve 16 and the indoor return air valve 17 are opened, the air valve IV 12, the air valve II 15 and the intercommunication valve 2 are closed, and the air flow direction is as shown in the figure. Figure 2 The outdoor fresh air is introduced from the outside of the wall 10, the air discharged outside is energy recovered by the heat pipe heat exchanger 9, and then the air is further cooled by the surface cooler 5, and is sent into the indoor, and the surface cooler 5 is connected with the external air conditioning module. Embodiment

[0027] The air valve IV 12, the air valve II 15 and the intercommunication valve 2 are opened, the air valve III 13, the air valve I 14, the indoor air supply valve 16 and the indoor return air valve 17 are closed, and the air flow direction is as shown in the figure. Figure 3 The indoor circulation mode is realized, the fan I 3 and the fan II 4 are in the same air supply circulation in a series form, the heat pipe heat exchanger 9 can be cooperated with the surface cooler 5 to reduce the relative humidity and provide a comfortable air supply condition.

[0028] If the surface cooler 5 is used for cooling and dehumidification, the cooling load of the surface cooler 5 is large to meet the dehumidification effect, the air supply temperature is too low, and the use is not comfortable. The conventional measure is to heat the air after dehumidification of the surface cooler 5 to achieve a comfortable air supply temperature, but the additional heating causes the energy consumption of the unit to increase. In the scheme, the phase change of the internal heat exchange medium of the heat pipe heat exchanger 9 can realize the effect that the air is pre-cooled before the surface cooler 5 and the air is heated after the surface cooler 5, and no external energy consumption is needed.

Claims

1. A dehumidifying and heat recovery air handling unit, characterized in that: It includes a housing, in which heat pipe heat exchangers and transverse partitions are arranged crosswise. The transverse partitions and heat pipe heat exchangers divide the interior into four chambers. Fan I and Fan II, as well as surface coolers and interconnecting valves are respectively installed in the four chambers. The interconnecting valves penetrate the transverse partitions. The air inlet side of the fan I is provided with air valve I and air valve II; the air outlet side of the fan II is provided with air valve III and air valve IV. An indoor air supply valve is provided on the right side of the surface cooler; an indoor return air valve is also provided on the side of the heat pipe heat exchanger.

2. The dehumidification and heat recovery air handling unit as described in claim 1, characterized in that: The aforementioned air valve II is connected in parallel with the indoor air supply valve to the indoor return air inlet.

3. The dehumidification and heat recovery air handling unit as described in claim 1, characterized in that: The aforementioned air valve IV is connected in parallel with the indoor air supply valve to the indoor air supply outlet.

4. The dehumidification and heat recovery air handling unit as described in claim 1, characterized in that: Both air valve I and air valve III are connected to the outside to provide outdoor air supply.

5. The dehumidification and heat recovery air handling unit as described in claim 1, characterized in that: The heat pipe heat exchanger includes a flow guide frame, and several heat conduction pipes are inclinedly arranged inside the flow guide frame. The heat conduction pipes are divided into two parts by a partition and are respectively arranged in the right-side air cavity and the left-side air cavity.

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