CN210486647U

CN210486647U - Z-shaped counter-flow type self-humidification total heat recovery device and air handling unit

Info

Publication number: CN210486647U
Application number: CN201921267231.3U
Authority: CN
Inventors: 李彦辉; 李明璋; 胡国锦
Original assignee: Sansan Kongpin Energy Saving Technology Co ltd
Current assignee: Sansan Kongpin Energy Saving Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-05-08
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a Z-shaped counter-flow self-humidifying total heat recovery device and an air handling unit, which comprises a first Z-shaped counter-flow gas-liquid heat exchange device and a second Z-shaped counter-flow gas-liquid heat exchange device; the structure of the first Z-shaped countercurrent gas-liquid heat exchange device is basically the same as that of the second Z-shaped countercurrent gas-liquid heat exchange device, the first Z-shaped countercurrent gas-liquid heat exchange device comprises a first shell, first filler is obliquely arranged in the first shell, and a first air outlet and a first air inlet are formed in the first shell; a first liquid distribution pipe is arranged in the first liquid distribution pipe, and a plurality of first small holes are formed in the first liquid distribution pipe; the utility model discloses can retrieve the exchange to the heat in new trend and the return air, solve the problem that the liquid was taken to the total heat recovery device air-out of solution simultaneously. The utility model discloses an air handling unit constitutes various new units through the various structures of arranging on the Z type counter-current formula is from the total heat recovery device of humidification, carries out the adjustment on temperature and humidity to the new trend when can realize total heat recovery, has improved the unit performance.

Description

Z-shaped counter-flow type self-humidification total heat recovery device and air handling unit

Technical Field

The utility model belongs to the technical field of the air conditioner, concretely relates to Z type counter-current is from full heat reclamation device of humidification and air treatment unit.

Background

In the existing solution humidifying fresh air handling unit, direct-discharge filler cross-flow heat exchange total heat recovery is adopted, and partial cold and heat and humidity in exhaust air are recovered by respectively processing fresh air and exhaust air. The structure comprises two direct-discharge packing modules, a brine pump and a corresponding brine pipeline. The existing solution total heat recovery device is stable in operation, remarkable in effect and capable of generally meeting the market demand. Because the limitation of the cross flow heat exchange of the direct-discharge filler, the total heat recovery efficiency is about 50%, the efficiency is lower, the windward area is small, the wind speed is about 2m/s, the wind speed is higher, the wind is blown out with liquid, the salt water is accumulated at the fan, the metal frame and the fan can be corroded, and the long-term operation of the unit is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a Z type counter-current is from full heat reclamation device of humidification, provides an air treatment unit simultaneously.

A Z-shaped counter-flow type self-humidifying total heat recovery device comprises a first Z-shaped counter-flow gas-liquid heat exchange device and a second Z-shaped counter-flow gas-liquid heat exchange device; the first Z-shaped countercurrent gas-liquid heat exchange device comprises a first shell, wherein a first filler is obliquely arranged in the first shell, the first shell is divided into a first upper cavity and a first lower cavity by the first filler, a first air outlet is formed in the side wall of the first upper cavity of the first shell, and a first air inlet is formed in the side wall of the first lower cavity of the first shell; a first liquid distribution pipe is arranged in the first upper cavity along the inclination direction of the first filler, and a plurality of first small holes are formed in the first liquid distribution pipe; the second Z-shaped countercurrent gas-liquid heat exchange device comprises a second shell, a second filler is obliquely arranged in the second shell, the second shell is divided into a second upper cavity and a second lower cavity by the second filler, a second air outlet is formed in the side wall of the second upper cavity of the second shell, and a second air inlet is formed in the side wall of the second lower cavity of the second shell; a second liquid distribution pipe is arranged in the second upper cavity along the inclination direction of the second filler, and a plurality of second small holes are formed in the second liquid distribution pipe; the bottom of the first shell is connected with the second liquid distribution pipe through a first pipeline, and a first water pump is arranged on the first pipeline; the bottom of the second shell is connected with the first liquid distribution pipe through a second pipeline. In the above scheme, the first Z-shaped counter-flow gas-liquid heat exchange device and the second Z-shaped counter-flow gas-liquid heat exchange device can be arranged up and down, and circulation is realized by the gravity of liquid.

In order to meet the use requirements under different conditions, when the upper and lower arrangement cannot be realized due to the reason restriction, the second water pump is arranged on the second pipeline, and the requirement of liquid circulation in the Z-shaped counter-flow type self-humidifying total heat recovery device is met.

Preferably, the second filler and the first filler have the same structure, the first filler comprises a frame and a plurality of filler sheets sequentially arranged in the frame, the filler sheets are corrugated, and the included angle between the wave height line of each filler sheet and the vertical axis of each filler sheet is greater than 0 degree and smaller than 15 degrees; wherein the vertical axis of the packing sheet is the vertical axis when the corrugations of the packing sheet extend in the horizontal direction. Preferably, the cross section of the filler sheet is square, and the vertical axis of the filler sheet is the vertical axis when the filler sheet is horizontally placed and the corrugations extend along the horizontal direction. The wave height lines between two adjacent filler sheets face different directions and are not parallel; preferably, the included angle of the wave height line between two adjacent filler sheets is larger than 0 degree and smaller than 90 degrees, and at the moment, a channel can be formed between the two adjacent filler sheets, so that air can conveniently pass through the channel; when the wave height lines between two adjacent filler sheets are parallel, the problem of overlapping of the two adjacent filler sheets can be solved, a channel is not formed, and the air passing efficiency is greatly reduced; the plate surfaces of the filler pieces are arranged in parallel.

Preferably, the frame is formed by encircling two corresponding square side plates and two corresponding parallelogram side plates; the wave height line of the packing sheet is parallel to the square side plate.

Preferably, in order to facilitate the detachment of the first filler and the second filler, the inner side walls of the first shell and the second shell are both provided with a supporting plate, and the first filler and the second filler are both arranged on the supporting plate.

An air handling unit comprises any one of the Z-shaped counter-flow type self-humidifying total heat recovery device, a humidifying device, a fresh air fan and a return air fan, wherein the humidifying device and the fresh air fan are sequentially arranged on the right side of a first air outlet of a first Z-shaped counter-flow gas-liquid heat exchange device; and a return air fan is arranged on the right side of a second air inlet of the second Z-shaped countercurrent gas-liquid heat exchange device.

In order to realize different humidifying effects, the humidifying device can wet a common humidifier.

Preferably, in order to realize humidification and heat recovery, the humidification device comprises a third Z-shaped countercurrent gas-liquid heat exchange device, a fourth Z-shaped countercurrent gas-liquid heat exchange device and a heat pump system, the third Z-shaped countercurrent gas-liquid heat exchange device comprises a third shell, a third filler is obliquely arranged in the third shell, the third shell is divided into a third upper cavity and a third lower cavity by the third filler, a third air outlet is formed in the side wall of the third upper cavity of the third shell, and a third air inlet is formed in the side wall of the third lower cavity of the third shell; a third liquid distribution pipe is arranged in the third upper cavity along the inclination direction of a third filler, and a plurality of third small holes are formed in the third liquid distribution pipe; the fourth Z-shaped countercurrent gas-liquid heat exchange device comprises a fourth shell, wherein a fourth filler is obliquely arranged in the fourth shell, the fourth shell is divided into a fourth upper cavity and a fourth lower cavity by the fourth filler, a fourth air outlet is formed in the side wall of the fourth upper cavity of the fourth shell, and a fourth air inlet is formed in the side wall of the fourth lower cavity of the fourth shell; a fourth liquid distribution pipe is arranged in the fourth upper cavity along the fourth filler inclination direction, and a plurality of fourth small holes are formed in the fourth liquid distribution pipe; the bottom of the third shell is connected with a fourth liquid distribution pipe through a third pipeline, a condenser and a third water pump in sequence; the bottom of the fourth shell is connected with a third liquid distribution pipe through a fourth pipeline, an evaporator and a fourth water pump in sequence; the heat pump system comprises a compressor, wherein an inlet of the compressor is connected with an outlet of the compressor through a four-way valve, one end of the four-way valve is connected with a condenser, the other end of the four-way valve is connected with an evaporator, the evaporator and the condenser are connected through a fifth pipeline, and an expansion valve is arranged on the fifth pipeline; the third Z-shaped countercurrent gas-liquid heat exchange device is positioned between the first air outlet and the fresh air fan; the fourth Z-shaped countercurrent gas-liquid heat exchange device is positioned between the second air inlet and the return air fan; the third filler and the fourth filler have the same structure as the first filler.

Preferably, in order to achieve better liquid spraying effect, the first small hole, the second small hole, the third small hole and the fourth small hole are respectively oriented to the first filler, the second filler, the third filler and the fourth filler.

Preferably, in order to achieve water replenishing and better effects, a fourth surface air cooler is arranged between the humidifying device and the fresh air fan, a third filter, an eighth water pump, a fourth filter, a third surface air cooler and a second valve are sequentially connected below the third shell, an outlet and an inlet of the fourth surface air cooler are connected through a second water source, and the second valve is connected with an outlet of the fourth surface air cooler; a second fan is arranged on one side of the third surface cooler; be equipped with first air mixing device between return air fan and the fourth surface cooler, first air mixing device includes first input port, first delivery outlet and second delivery outlet, first input port and indoor intercommunication, first delivery outlet is towards the return air fan, and the second delivery outlet is towards the fourth surface cooler.

Preferably, in order to better realize the humidification effect, the humidification device comprises a V-shaped gas-water heat exchange device, a first water source and a first surface air cooler, and the bottom of the V-shaped gas-water heat exchange device is connected with the upper part of the V-shaped gas-water heat exchange device through a sixth pipeline, a heat exchanger and a fifth water pump in sequence; the inlet and the outlet of the first water source are connected through a heat exchanger, the outlet of the first water source is also connected with the inlet of a first surface air cooler, and the outlet of the first surface air cooler is connected with the inlet of the first water source; the inlet of the first water source is connected with the bottom of the V-shaped gas-water heat exchange device through a first valve, a second surface air cooler, a first filter, a seventh water pump and a second filter in sequence; a first fan is arranged on one side of the second surface cooler; the V-shaped air-water heat exchange device is close to the first air outlet, and the first surface cooler is located between the V-shaped air-water heat exchange device and the fresh air fan.

Preferably, in order to utilize the air, be equipped with the second device that mixes between return air fan and the first surface cooler, the second device that mixes includes second input port, third delivery outlet and fourth delivery outlet, the second input port and indoor intercommunication, the third delivery outlet is towards the return air fan, and the fourth delivery outlet is towards the first surface cooler.

And supporting plates are also arranged on the third shell and the fourth shell, so that the third packing and the fourth packing can be conveniently installed. The first air mixing device and the second air mixing device can be proportional valves.

In the air handling unit, in order to filter air, an air filtering component is arranged on the left side of the first air inlet; the air filtering component can be one or more of a primary filter, a medium-efficiency filter or a high-efficiency filter.

In order to control the flow of air conveniently, a proportional valve is arranged on the left side of the first air inlet, and the opening degree of the proportional valve directly controls the flow of fresh air.

Preferably, the V-shaped gas-water heat exchange device is a V-shaped gas-water heat exchange device in an authorized patent with the patent number of 201820193353.1.

The utility model discloses Z type counter-current is from humidification total heat reclamation device, the air is longer with salt solution contact time, and the air trades the humidity for the counter-current heat transfer with salt solution, the air remains a great state throughout with salt solution temperature and humidity gradient difference, counter-current total heat reclamation heat recovery efficiency can reach 65%, near three-fold has been promoted than traditional solution total heat reclamation (total heat reclamation efficiency 50%) efficiency, can retrieve the exchange to the heat in new trend and the return air, the filler windward area is 2 times in the traditional device in the total heat reclamation device, the wind speed can be dropped to 1m/s, the problem of solution total heat reclamation device air-out area liquid has been solved from the root. And meanwhile, the installation requirements under different conditions can be met.

The utility model discloses an air handling unit constitutes all kinds of new units through devices such as the fan of arranging on the Z type counter-current formula is from the total heat recovery device of humidification, all kinds of air cleaner, surface cooler, humidification device, can realize carrying out the adjustment on temperature and humidity to the new trend when carrying out total heat recovery to airing exhaust, makes it accord with the fresh air supply standard, has improved the unit performance greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings which are needed to be practical in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the packing sheet of the present invention;

FIG. 2 is a schematic cross-sectional view of the packing sheet of the present invention;

FIG. 3 is an enlarged view of the position A of the packing sheet of the present invention;

FIG. 4 is a schematic view of a first packing of the present invention;

FIG. 5 is a schematic structural view of the Z-shaped counter-flow self-humidifying total heat recovery device of the present invention;

fig. 6 is a schematic structural view of an air handling unit provided in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of an air handling unit provided in embodiment 2 of the present invention;

fig. 8 is a schematic structural view of an air handling unit provided in embodiment 3 of the present invention;

fig. 9 is a schematic structural view of an air handling unit provided in embodiment 4 of the present invention.

In the figure: 1-filler sheet; 2-wave altitude; 3-vertical axis; 4-square side plate; 5-parallelogram side plates; 6-a first shell; 7-a first filler; 8-a first upper cavity; 9-a first lower cavity; 10-a first air outlet; 11-a first air inlet; 12-a first liquid distribution pipe; 13-a first aperture; 14-a second housing; 15-a second filler; 16-a second upper chamber; 17-a second lower cavity; 18-a second air outlet; 19-a second air inlet; 20-a second liquid distribution pipe; 21-a second aperture; 22-a first conduit; 23-a first water pump; 24-a second conduit; 25-a second water pump; 26-a first Z-shaped countercurrent gas-liquid heat exchange device; 27-a second Z-shaped countercurrent gas-liquid heat exchange device; 28-primary filter; 29-a fresh air fan; 30-return air fan; 31-a third Z-shaped countercurrent gas-liquid heat exchange device; 32-a fourth Z-shaped countercurrent gas-liquid heat exchange device; 311-a third housing; 312-a third filler; 313-a third upper chamber; 314-a third lower cavity; 315-third outlet; 316-third air inlet; 317-a third liquid distribution pipe; 318-third orifice; 321-a fourth shell; 322-fourth filler 322; 323-a fourth upper chamber; 324-a fourth lower cavity; 325-a fourth air outlet; 326-fourth air intake; 327-a fourth liquid distribution tube; 328-a fourth orifice 328; 33-a third conduit; 34-a condenser; 35-a third water pump; 36-a fourth conduit; 37-an evaporator; 38-a fourth water pump; 39-a compressor; a 40-four-way valve; 41-fifth pipeline; 42-an expansion valve; 43-proportional valve; 44-fourth surface cooler; 45-a first air mixing device; 46-a second valve; 47-a third surface cooler; 48-a second fan; 49-a fourth filter; 50-an eighth water pump; 51-a third filter; 52-a second water source; 53-a first input port; 54-a first output port; 55-a second output port; 56-V type gas-water heat exchange device; 57-a first water source; 58-first surface cooler; 59-a sixth conduit; 60-a heat exchanger; 61-a fifth water pump; 62-a first valve 62; 63-a second surface cooler; 64-a first filter; 65-a seventh water pump; 66-a second filter; 67-a first fan; 68-a second input port; 69-a third output port; 70-fourth output port.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the above description, in combination with the drawings in the embodiments of the present invention, clearly and completely describes the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

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

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1-4, the first filler 7 comprises a frame and a plurality of filler sheets 1 sequentially arranged in the frame, the filler sheets 1 are corrugated, and an included angle between a wave height line 2 of each filler sheet 1 and a vertical axis 3 of each filler sheet 1 is greater than 0 degree and smaller than 15 degrees; the included angle of the wave altitude 2 between two adjacent filler sheets 1 is more than 0 degree and less than 90 degrees; the plate surfaces of the filler sheets 1 are arranged in parallel; the frame is formed by encircling two corresponding square side plates 4 and two corresponding parallelogram side plates 5; the wave height line 2 of the packing sheet 1 is parallel to the square side plate 4.

As shown in fig. 5, the Z-type counter-flow self-humidifying total heat recovery device comprises a first Z-type counter-flow gas-liquid heat exchange device 26 and a second Z-type counter-flow gas-liquid heat exchange device 27; the first Z-shaped countercurrent gas-liquid heat exchange device comprises a first shell 6, a first filler 7 is obliquely arranged in the first shell 6, the first shell 6 is divided into a first upper cavity 8 and a first lower cavity 9 by the first filler 7, a first air outlet 10 is formed in the side wall of the first shell 6 positioned at the first upper cavity 8, and a first air inlet 11 is formed in the side wall of the first shell 6 positioned at the first lower cavity 9; a first liquid distribution pipe 12 is arranged in the first upper cavity 8 along the inclined direction of the first filler 7, and a plurality of first small holes 13 are formed in the first liquid distribution pipe 12; the second Z-shaped countercurrent gas-liquid heat exchange device comprises a second shell 14, a second filler 15 is obliquely arranged in the second shell 14, the second shell 14 is divided into a second upper cavity 16 and a second lower cavity 17 by the second filler 15, a second air outlet 18 is formed in the side wall of the part, located on the second upper cavity 16, of the second shell 14, and a second air inlet 19 is formed in the side wall, located on the second lower cavity 17, of the second shell 14; a second liquid distribution pipe 20 is arranged in the second upper cavity 16 along the inclined direction of the second filler 15, and a plurality of second small holes 21 are formed in the second liquid distribution pipe 20; the bottom of the first shell 6 is connected with a second liquid distribution pipe 20 through a first pipeline 22, and a first water pump 23 is arranged on the first pipeline 22; the bottom of the second shell 14 is connected with the first liquid distribution pipe 12 through a second pipeline 24; the second pipeline 24 is provided with a second water pump 25, so that the requirement of liquid circulation in the Z-shaped counter-flow type self-humidifying total heat recovery device can be met. The first and

second apertures

13, 21 are directed towards the first and

second packings

7, 15, respectively.

When the filling machine works, liquid is uniformly sprayed on the first filling material 7 through the first liquid distribution pipe 12 and the first small holes 13, and the liquid flows from top to bottom; fresh air is discharged from the first air outlet 10 through the first air inlet 11 and the first filler 7 through heat exchange and humidification, liquid in the first shell 6 passes through the first pipeline 22 and the first water pump 23 and then is sprayed on the second filler 15 through the second liquid distribution pipe 20 and the second small hole 21, exhaust air is discharged through the second air inlet 19 in the second shell 14 and the second filler 15 through the second air outlet 18 after heat exchange, and at the moment, the liquid enters the first liquid distribution pipe 12 through the second pipeline 24 and the second water pump 25 to circulate, so that efficient heat recovery and heat exchange are realized.

Example 1

As shown in fig. 6, the air handling unit includes a Z-shaped counter-flow self-humidifying total heat recovery device, a humidifying device, a fresh air fan 29, and a return air fan 30, wherein the humidifying device and the fresh air fan 29 are sequentially arranged on the right side of the first air outlet 10 of the first Z-shaped counter-flow gas-liquid heat exchange device 26; a return air fan 30 is arranged at the right side of a second air inlet 19 of the second Z-shaped countercurrent gas-liquid heat exchange device 27; and a primary filter 28 is arranged at the left side of the first air inlet 11. The Z-shaped counter-flow type self-humidifying total heat recovery device is a Z-shaped counter-flow type self-humidifying total heat recovery device without the second water pump 25 in the figure 5.

The humidifying device comprises a third Z-shaped countercurrent gas-liquid heat exchange device 31, a fourth Z-shaped countercurrent gas-liquid heat exchange device 32 and a heat pump system, the third Z-shaped countercurrent gas-liquid heat exchange device 31 comprises a third shell 311, a third filler 312 is obliquely arranged in the third shell 311, the third shell 311 is divided into a third upper cavity 313 and a third lower cavity 314 by the third filler 312, a third air outlet 315 is arranged on the side wall of the third upper cavity 313 part of the third shell 311, and a third air inlet 316 is arranged on the side wall of the third lower cavity 314 of the third shell 311; a third liquid distribution pipe 317 is arranged in the third upper cavity 313 along the inclination direction of the third filler 312, and a plurality of third small holes 318 are arranged on the third liquid distribution pipe 317; the fourth Z-shaped countercurrent gas-liquid heat exchange device 32 includes a fourth shell 321, a fourth filler 322 is obliquely disposed in the fourth shell 321, the fourth shell 321 is divided into a fourth upper cavity 323 and a fourth lower cavity 324 by the fourth filler 322, a fourth air outlet 325 is disposed on a side wall of the fourth upper cavity 323 of the fourth shell 321, and a fourth air inlet 326 is disposed on a side wall of the fourth lower cavity 324 of the fourth shell 321; a fourth liquid distribution pipe 327 is arranged in the fourth upper cavity 323 along the inclined direction of the fourth filler 322, and a plurality of fourth small holes 328 are arranged on the fourth liquid distribution pipe 327; the bottom of the third shell 311 is connected with a fourth liquid distribution pipe 327 through a third pipeline 33, a condenser 34 and a third water pump 35 in sequence; the bottom of the fourth shell 321 is connected with a third liquid distribution pipe 317 through a fourth pipeline 36, an evaporator 37 and a fourth water pump 38 in sequence; the heat pump system comprises a compressor 39, wherein the inlet of the compressor 39 is connected with the outlet of the compressor 39 through a four-way valve 40, one end of the four-way valve 40 is connected with a condenser 34, the other end of the four-way valve 40 is connected with an evaporator 37, the evaporator 37 is connected with the condenser 34 through a fifth pipeline 41, and an expansion valve 42 is arranged on the fifth pipeline 41; the third Z-shaped countercurrent gas-liquid heat exchange device 31 is positioned between the first air outlet 10 and the fresh air fan 29; the fourth Z-shaped countercurrent gas-liquid heat exchange device 32 is positioned between the second air inlet 19 and the return air fan 30; the third packing 312 and the fourth packing 322 have the same structure as the first packing 7.

In this embodiment, the second water pump 25, the first Z-shaped counter-flow gas-liquid heat exchange device 26 and the second Z-shaped counter-flow gas-liquid heat exchange device 27 are disposed up and down, and the circulation is realized by the gravity of the liquid,

when the humidifying device works, the working principle between the third Z-shaped countercurrent gas-liquid heat exchange device 31 and the fourth Z-shaped countercurrent gas-liquid heat exchange device 32 in the humidifying device is the same as that of the Z-shaped countercurrent self-humidifying total heat recovery device, the heat pump system acts on the evaporator 37 and the condenser 34 to realize temperature adjustment of liquid, and the condenser 34 is communicated with the evaporator 37 through the expansion valve 42.

Example 2

An air handling unit as shown in fig. 7 includes the structure in embodiment 1, and further includes a fourth surface cooler 44 disposed between the humidifying device and the fresh air fan 29, a third filter 51, an eighth water pump 50, a fourth filter 49, a third surface cooler 47, and a second valve 46 are sequentially connected below the third housing 311, an outlet and an inlet of the fourth surface cooler 44 are connected through a second water source 52, and the second valve 46 is connected to an outlet of the fourth surface cooler 44; a second fan 48 is arranged on one side of the third surface cooler 47; a first air mixing device 45 is arranged between the return air fan 30 and the fourth surface air cooler 44, the first air mixing device 45 comprises a first input port 53, a first output port 54 and a second output port 55, the first input port 53 is communicated with the indoor space, the first output port 54 faces the return air fan 30, and the second output port 55 faces the fourth surface air cooler 44; the left side of the primary filter 28 is provided with a proportional valve 43; the proportional valve 43 can adjust the intake air amount.

When the air conditioner is used, the second water source 52 can provide cold water and hot water for the fourth surface air cooler 44, temperature regulation of different requirements is achieved, and the first air mixing device 45 utilizes indoor air to adjust temperature and humidity. After heat exchange is carried out on the second water source 52 through the second valve 46 and the third surface cooler 47, water can be supplied to the Z-shaped counter-flow type self-humidifying total heat recovery device through the fourth filter 49, the eighth water pump 50 and the third filter 51, and liquid requirements are met.

Example 3

As shown in fig. 8, the air handling unit includes a Z-shaped counter-flow self-humidifying total heat recovery device, a humidifying device, a fresh air fan 29, and a return air fan 30, wherein the humidifying device and the fresh air fan 29 are sequentially disposed on the right side of the first air outlet 10 of the first Z-shaped counter-flow gas-liquid heat exchange device 26; a return air fan 30 is arranged at the right side of a second air inlet 19 of the second Z-shaped countercurrent gas-liquid heat exchange device 27; and a primary filter 28 is arranged at the left side of the first air inlet 11. The Z-shaped counter-flow type self-humidifying total heat recovery device is a Z-shaped counter-flow type self-humidifying total heat recovery device without the second water pump 25 in the figure 5.

The humidifying device comprises a V-shaped gas-water heat exchange device 56, a first water source 57 and a first surface air cooler 58, wherein the bottom of the V-shaped gas-water heat exchange device 56 is connected with the upper part of the V-shaped gas-water heat exchange device 56 sequentially through a sixth pipeline 59, a heat exchanger 60 and a fifth water pump 61; the inlet and the outlet of the first water source 57 are connected through a heat exchanger 60, the outlet of the first water source 57 is also connected with the inlet of a first surface air cooler 58, and the outlet of the first surface air cooler 58 is connected with the inlet of the first water source 57; an inlet of the first water source 57 is connected with the bottom of the V-shaped gas-water heat exchange device 56 through a first valve 62, a second surface air cooler 63, a first filter 64, a seventh water pump 65 and a second filter 66 in sequence; a first fan 67 is arranged on one side of the second surface cooler 63; the V-shaped air-water heat exchange device 56 is close to the first air outlet 10, and the first surface cooler 58 is located between the V-shaped air-water heat exchange device 56 and the fresh air fan 29.

During operation, air is filtered by the primary filter 28 and then exchanges heat in the Z-shaped counter-flow self-humidifying total heat recovery device, and fresh air enters the V-shaped air-water heat exchange device 56 after being exchanged heat and humidified by the first surface cooler 58; the first water source 57 can realize the heat exchange of the first surface cooler 58, and water in the first water source 57 is subjected to heat exchange through the first valve 62, the second surface cooler 63, the first filter 64, the seventh water pump 65 and the second filter 66 to supplement water for the V-shaped air-water heat exchange device 56, so that automatic water supplement is realized.

Example 4

A humidifying device as shown in fig. 9 includes the structure in embodiment 3, and further includes a second air mixing device 67 disposed between the return air fan 30 and the first surface air cooler 58, where the second air mixing device 67 includes a second input port 68, a third output port 69 and a fourth output port 70, the second input port 68 is communicated with the room, the third output port 69 faces the return air fan, and the fourth output port 70 faces the first surface air cooler. The left side of the primary filter 28 is provided with a proportional valve 43; the proportional valve 43 can adjust the intake air amount. The second air mixing device 67 can realize reasonable utilization of air energy and improve heat utilization rate.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A Z-shaped counter-flow type self-humidifying total heat recovery device is characterized by comprising a first Z-shaped counter-flow gas-liquid heat exchange device and a second Z-shaped counter-flow gas-liquid heat exchange device; the first Z-shaped countercurrent gas-liquid heat exchange device comprises a first shell, wherein a first filler is obliquely arranged in the first shell, the first shell is divided into a first upper cavity and a first lower cavity by the first filler, a first air outlet is formed in the side wall of the first upper cavity of the first shell, and a first air inlet is formed in the side wall of the first lower cavity of the first shell; a first liquid distribution pipe is arranged in the first upper cavity along the inclination direction of the first filler, and a plurality of first small holes are formed in the first liquid distribution pipe; the second Z-shaped countercurrent gas-liquid heat exchange device comprises a second shell, a second filler is obliquely arranged in the second shell, the second shell is divided into a second upper cavity and a second lower cavity by the second filler, a second air outlet is formed in the side wall of the second upper cavity of the second shell, and a second air inlet is formed in the side wall of the second lower cavity of the second shell; a second liquid distribution pipe is arranged in the second upper cavity along the inclination direction of the second filler, and a plurality of second small holes are formed in the second liquid distribution pipe; the bottom of the first shell is connected with the second liquid distribution pipe through a first pipeline, and a first water pump is arranged on the first pipeline; the bottom of the second shell is connected with the first liquid distribution pipe through a second pipeline.

2. The Z-shaped counter-flow self-humidifying total heat recovery device according to claim 1, wherein a second water pump is arranged on the second pipeline.

3. The Z-shaped counter-flow type self-humidifying total heat recovery device according to claim 1 or 2, wherein the second filler and the first filler are identical in structure, the first filler comprises a frame and a plurality of filler sheets which are sequentially arranged in the frame, the filler sheets are corrugated, and the wave height line of each filler sheet forms an included angle with the vertical axis of the filler sheet which is larger than 0 degree and smaller than 15 degrees; the included angle of the wave altitude lines between two adjacent filler sheets is larger than 0 degree and smaller than 90 degrees; the plate surfaces of the filler pieces are arranged in parallel.

4. The Z-shaped counter-flow self-humidifying total heat recovery device according to claim 3, wherein the frame is surrounded by two corresponding square side plates and two corresponding parallelogram side plates; the wave height line of the packing sheet is parallel to the square side plate.

5. The Z-shaped counter-flow self-humidifying total heat recovery device according to claim 4, wherein supporting plates are arranged on the inner side walls of the first shell and the second shell, and the first filler and the second filler are arranged on the supporting plates.

6. An air handling unit, characterized by comprising the Z-shaped counter-flow self-humidifying total heat recovery device, the humidifying device, the fresh air fan and the return air fan of any one of claims 1, 2, 4 and 5, wherein the humidifying device and the fresh air fan are sequentially arranged on the right side of the first air outlet of the first Z-shaped counter-flow gas-liquid heat exchange device; and a return air fan is arranged on the right side of a second air inlet of the second Z-shaped countercurrent gas-liquid heat exchange device.

7. The air handling unit according to claim 6, wherein the humidifying device comprises a third Z-shaped counter-flow gas-liquid heat exchange device, a fourth Z-shaped counter-flow gas-liquid heat exchange device and a heat pump system, the third Z-shaped counter-flow gas-liquid heat exchange device comprises a third shell, a third filler is obliquely arranged in the third shell, the third shell is divided into a third upper cavity and a third lower cavity by the third filler, a third air outlet is formed in a side wall of the third upper cavity of the third shell, and a third air inlet is formed in a side wall of the third lower cavity of the third shell; a third liquid distribution pipe is arranged in the third upper cavity along the inclination direction of a third filler, and a plurality of third small holes are formed in the third liquid distribution pipe; the fourth Z-shaped countercurrent gas-liquid heat exchange device comprises a fourth shell, wherein a fourth filler is obliquely arranged in the fourth shell, the fourth shell is divided into a fourth upper cavity and a fourth lower cavity by the fourth filler, a fourth air outlet is formed in the side wall of the fourth upper cavity of the fourth shell, and a fourth air inlet is formed in the side wall of the fourth lower cavity of the fourth shell; a fourth liquid distribution pipe is arranged in the fourth upper cavity along the fourth filler inclination direction, and a plurality of fourth small holes are formed in the fourth liquid distribution pipe; the bottom of the third shell is connected with a fourth liquid distribution pipe through a third pipeline, a condenser and a third water pump in sequence; the bottom of the fourth shell is connected with a third liquid distribution pipe through a fourth pipeline, an evaporator and a fourth water pump in sequence; the heat pump system comprises a compressor, wherein an inlet of the compressor is connected with an outlet of the compressor through a four-way valve, one end of the four-way valve is connected with a condenser, the other end of the four-way valve is connected with an evaporator, the evaporator and the condenser are connected through a fifth pipeline, and an expansion valve is arranged on the fifth pipeline; the third Z-shaped countercurrent gas-liquid heat exchange device is positioned between the first air outlet and the fresh air fan; the fourth Z-shaped countercurrent gas-liquid heat exchange device is positioned between the second air inlet and the return air fan; the third filler and the fourth filler have the same structure as the first filler.

8. The air handling unit according to claim 6, wherein the humidifying device comprises a V-shaped air-water heat exchange device, a first water source and a first surface air cooler, and the bottom of the V-shaped air-water heat exchange device is connected with the upper part of the V-shaped air-water heat exchange device through a sixth pipeline, a heat exchanger and a fifth water pump in sequence; the inlet and the outlet of the first water source are connected through a heat exchanger, the outlet of the first water source is also connected with the inlet of a first surface air cooler, and the outlet of the first surface air cooler is connected with the inlet of the first water source; the inlet of the first water source is connected with the bottom of the V-shaped gas-water heat exchange device through a first valve, a second surface air cooler, a first filter, a seventh water pump and a second filter in sequence; a first fan is arranged on one side of the second surface cooler; the V-shaped air-water heat exchange device is close to the first air outlet, and the first surface cooler is located between the V-shaped air-water heat exchange device and the fresh air fan.

9. The air handling unit according to claim 7, wherein a fourth surface air cooler is disposed between the humidifying device and the fresh air fan, a third filter, an eighth water pump, a fourth filter, a third surface air cooler, and a second valve are sequentially connected below the third housing, an outlet and an inlet of the fourth surface air cooler are connected through a second water source, and the second valve is connected to an outlet of the fourth surface air cooler; a second fan is arranged on one side of the third surface cooler; be equipped with first air mixing device between return air fan and the fourth surface cooler, first air mixing device includes first input port, first delivery outlet and second delivery outlet, first input port and indoor intercommunication, first delivery outlet is towards the return air fan, and the second delivery outlet is towards the fourth surface cooler.

10. The air handling unit as recited in claim 8 wherein a second air mixing device is disposed between the return air blower and the first surface air cooler, the second air mixing device including a second input port, a third output port and a fourth output port, the second input port communicating with the room, the third output port facing the return air blower and the fourth output port facing the first surface air cooler.