CN206420083U - A kind of pre-cooling type heat recovery type fresh air unit - Google Patents
A kind of pre-cooling type heat recovery type fresh air unit Download PDFInfo
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- CN206420083U CN206420083U CN201621363308.3U CN201621363308U CN206420083U CN 206420083 U CN206420083 U CN 206420083U CN 201621363308 U CN201621363308 U CN 201621363308U CN 206420083 U CN206420083 U CN 206420083U
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Abstract
The utility model discloses a kind of pre-cooling type heat recovery type fresh air unit, including precool heat exchanger device and direct-evaporation-type refrigerating plant, the precool heat exchanger device is connected with direct-evaporation-type refrigerating plant, for receiving the fresh air exported from precool heat exchanger device；The direct-evaporation-type refrigerating plant includes ventilation blower, compressor, the first condenser, the second condenser with surface radiating ability, expansion valve, evaporator and refrigerant triple valve, and the compressor, the first condenser, the second condenser and refrigerant triple valve are connected with each other；One end of the expansion valve and the input port of evaporator are connected, and the other end is connected with the delivery outlet of the first condenser and the second condenser, and the delivery outlet of the evaporator and the input port of compressor are connected；The ventilation blower is arranged on one end of the second condenser.The beneficial effects of the utility model are：(1) effective regulating outlet air temperature.(2) indoor air humidity is automatically controlled.
Description
Technical field
The utility model is related to a kind of architectural environment equipment, is specifically related to a kind of pre-cooling type heat recovery type fresh air unit.
Background technology
At present, air-conditioning equipment industry is according to technical standard JB/T 12327-2015《Pre-cooling type heat recovery type fresh air machine
Group》Shown pre-cooling type heat recovery type fresh air set structure produces dehumidification by condensation formula Fresh air handling units.Fig. 1 (a) and 1 (b) are
Two kinds of schematic diagrames of the structure, wherein, the surface of air-cooled condenser can distribute the condenser heat of refrigerant, in the structure shown here water cooling
Condenser (or outdoor version air-cooled condenser) and air-cooled condenser are series connection, from the point of view of refrigerant flow circuit, the two condensers
It is the isobaric space being connected together, when temperature adjustment operating mode is run, while the high-pressure refrigerant of steam state enters water-cooled condenser
Also air-cooled condenser can be entered, only with the temperature adjustment method of increase water-cooled condenser cooling water inflow, it is impossible to prevent not water cooled vapour
State refrigerant is directly entered the air-cooled condenser release latent heat of vaporization, causes condenser heat excessive, prevent the leaving air temp of unit from
Setting is down to, temperature adjustment blind zone occurs.The Fresh air handling units only possess quantitative dehumidifying effect, it is impossible to actively change moisture removal and go balance
The change of fresh air moisture load and indoor humidity load.
Utility model content
A purpose of the present utility model is to provide a kind of pre-cooling type heat recovery type fresh air unit, can effectively controlled out
Air temperature, and being capable of automatic stabilisation indoor humidity.
Specifically, the utility model is achieved by the following technical solution：
A kind of pre-cooling type heat recovery type fresh air unit, the pre-cooling type heat recovery type fresh air unit includes：
Precool heat exchanger device and direct-evaporation-type refrigerating plant, the precool heat exchanger device connect with direct-evaporation-type refrigerating plant
Connect, for receiving the fresh air exported from precool heat exchanger device；
The direct-evaporation-type refrigerating plant include ventilation blower, compressor, the first condenser, with surface radiating ability
Second condenser, expansion valve, evaporator and refrigerant triple valve, the compressor, the first condenser, the second condenser and refrigerant three
Port valve is connected with each other, so that the refrigerant of compressor output is entered under the conducting effect of condensation triple valve with default ratio
First condenser and the second condenser；One end of the expansion valve and the input port of evaporator are connected, the other end and the first condensation
The delivery outlet connection of device and the second condenser, the delivery outlet of the evaporator and the input port of compressor are connected；The ventilation blower
One end of the second condenser is arranged on, for the gas of second condenser surface to be passed through into interior.
The refrigerant triple valve has first point of mouth, second Fen Kou and total mouth, first point of mouth and second point of mouth
Between be folding ratio complementary type, and two-way admittance between the first Fen Kou and total mouth, between the second Fen Kou and total mouth.
The compressor is connected with the input port of first condenser and the second condenser, first condenser it is defeated
Outlet be connected with first point of mouth of the condensation triple valve, the delivery outlet of second condenser and described condenses the of triple valve
Two points of mouth connections, total mouth of the condensation triple valve is connected with the expansion valve.
The delivery outlet of the compressor is connected with total mouth of the refrigerant triple valve, first point of mouth of the refrigerant triple valve
It is connected with the input port of the first condenser, second point of mouth of the refrigerant triple valve is connected with the input port of the second condenser.
The pre-cooling type heat recovery type fresh air unit also includes controller, for controlling described first point of mouth of refrigerant triple valve
With the folding ratio of second point of mouth.
The pre-cooling type heat recovery type fresh air unit also includes temperature sensor, and the temperature sensor is arranged on ventilation blower
Air outlet at, for detecting leaving air temp, the temperature sensor is connected with the controller, and the controller is according to described
The leaving air temp that temperature sensor is detected, according to default rule, controls described first point of mouth of refrigerant triple valve and second point
The folding ratio of mouth.
The pre-cooling type heat recovery type fresh air unit also includes humidity sensor, and the humidity sensor is disposed in the interior,
Humidity for detecting room air, the humidity sensor is connected with the controller, and the compressor is energy adjustable type
Compressor, is connected with the controller, the indoor air humidity that the controller is detected according to the humidity sensor, according to
Default rule, it is loading condition or Unloading Condition to adjust the energy adjustable type compressor.
The pre-cooling type heat recovery type fresh air unit also includes humidity sensor, and the humidity sensor is disposed in the interior,
Humidity for detecting room air, the humidity sensor is connected with the controller, and the compressor is energy adjustable type
Compressor, is connected with the controller, the indoor air humidity that the controller is detected according to the humidity sensor, according to
Default rule, it is loading condition or Unloading Condition to adjust the energy adjustable type compressor.
First condenser is water-cooled condenser, and second condenser is air-cooled condenser.
First condenser is outdoor version air-cooled condenser, and second condenser is air-cooled condenser.
The beneficial effects of the utility model are：(1) effective regulating outlet air temperature.(2) indoor air humidity is automatically controlled.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 (a) is the first pre-cooling type heat recovery type fresh air set structure schematic diagram of prior art；
Fig. 1 (b) is second of pre-cooling type heat recovery type fresh air set structure schematic diagram of prior art；
Fig. 2 is a kind of pre-cooling type heat recovery type fresh air set structure schematic diagram that the utility model embodiment one is provided；
Fig. 3 is a kind of pre-cooling type heat recovery type fresh air set structure schematic diagram that the utility model embodiment two is provided.
Description of reference numerals
Further clearly to illustrate the annexation between structure of the present utility model and each part, give following attached
Icon is remembered, and is illustrated.
10th, direct-evaporation-type refrigerating plant；1st, first point of mouth；2nd, second point of mouth；3rd, Zong Kou；11st, controller；12nd, temperature
Sensor；13rd, humidity sensor；101st, ventilation blower；102nd, compressor；103rd, the first condenser；104th, the second condenser；105、
Expansion valve；106th, evaporator；107th, refrigerant triple valve；20th, precool heat exchanger device.
By above-mentioned description of reference numerals, with reference to embodiment of the present utility model, it can be more clearly understood from and illustrate
The technical solution of the utility model.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects being described in detail in appended claims, of the present utility model.
The term used in the utility model is the purpose only merely for description specific embodiment, and is not intended to be limiting this reality
With new." one kind ", " described " and "the" of singulative used in the utility model and appended claims
It is intended to include most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/
Or " refer to and may be combined comprising one or more associated any or all of project listed.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not
In the case of departing from the utility model scope, the first information can also be referred to as the second information, similarly, and the second information can also
It is referred to as the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
The utility model will be described in detail by embodiment below.
Embodiment one
A kind of pre-cooling type heat recovery type fresh air unit, as shown in Fig. 2 the pre-cooling type heat recovery type fresh air unit includes：
Precool heat exchanger device 20 and direct-evaporation-type refrigerating plant 10, the precool heat exchanger device 20 connect with direct-evaporation-type refrigerating plant 10
Connect, the direct-evaporation-type refrigerating plant 10 is connected to receive the fresh air exported from precool heat exchanger device 20；Specifically, described straight
Connecing evaporation refrigeration device 10 includes ventilation blower 101, compressor 102, the first condenser 103, the with surface radiating ability
Two condensers 104, expansion valve 105, evaporator 106 and refrigerant triple valve 107, the compressor 102, the first condenser 103,
Two condensers 104 and refrigerant triple valve 107 are connected with each other, so that the refrigerant that compressor 102 is exported is in condensation triple valve 107
Under conducting effect, the first condenser 103 and the second condenser 104 are entered with default ratio；One end of the expansion valve 105 with
The input port connection of evaporator 106, the other end is connected with the delivery outlet of the first condenser 103 and the second condenser 104, described to steam
The delivery outlet of hair device 106 is connected with the input port of compressor 102；The ventilation blower 101 is arranged on the one of the second condenser 104
End, for the gas on the surface of the second condenser 104 to be passed through into interior.Specifically, first condenser 103 is that water cooling is cold
Condenser, second condenser 104 is air-cooled condenser, or
First condenser 103 is outdoor version air-cooled condenser, and second condenser 104 is air-cooled condenser.
Further, as shown in Fig. 2 the refrigerant triple valve 107 has first point of mouth 1, second point of mouth 2 and a total mouth
3, between first point of mouth and second point of mouth be folding ratio complementary type, and between the first Fen Kou and total mouth, second point of mouth
The two-way admittance between total mouth.The input port of the compressor 102 and the condenser 104 of the first condenser 103 and second connects
Connect, the delivery outlet of first condenser 103 is connected with second point of mouth 2 of the condensation triple valve 107, second condenser
104 delivery outlet with it is described condensation triple valve 107 first point of mouth 1 be connected, it is described condensation triple valve 107 total mouth 3 with it is described
Expansion valve is connected.
Further, the pre-cooling type heat recovery type fresh air unit also includes controller 11, for controlling the refrigerant three
The folding ratio of 107 first points of mouths 1 of port valve and second point of mouth 2.
Further, the pre-cooling type heat recovery type fresh air unit also includes temperature sensor 12, the temperature sensor
12 are arranged at the air outlet of ventilation blower 101, and for detecting leaving air temp, the temperature sensor 12 connects with the controller 11
Connect, the leaving air temp that the controller 11 is detected according to the temperature sensor 12, according to default rule, control described cold
The folding ratio of 107 first points of mouths 1 of matchmaker's triple valve and second point of mouth 2.
Further, the pre-cooling type heat recovery type fresh air unit also includes humidity sensor 13, the humidity sensor
13 are disposed in the interior, and the humidity for detecting room air, the humidity sensor 13 is connected with the controller 11, the pressure
Contracting machine 102 is energy adjustable type compressor, is connected with the controller 11, the controller 11 is according to the humidity sensor 13
The indoor air humidity detected, according to default rule, adjusts the energy adjustable type compressor 102 for loading condition or unloads
Carry operating mode.
Being connected and communicate with as prior art, sheet between the temperature sensor 12, humidity sensor 13 and controller 11
Utility model is repeated no more.The controller 11 regulation energy adjustable type compressor 102 is loading condition or Unloading Condition is also
Prior art, the utility model is repeated no more.
In embodiment one, the course of work of the pre-cooling type heat recovery type fresh air unit is as follows：
The regulation of leaving air temp：
When the temperature value that the temperature sensor 12 is detected is less than default temperature threshold, the controller 11 is controlled
First point of mouth 1 of the refrigerant triple valve 107 is gradually opened greatly, now, and high temperature refrigerant enters the passage of air-cooled condenser, condensation
Heat, which is continuously increased, makes wind pushing temperature continue rise；Meanwhile, second point of mouth 2 then gradually closes small, reduces and enters water-cooled condenser
Refrigerant flow, gradually decrease the condenser heat that cooling water is taken away.
Similar, when the temperature value that the temperature sensor 12 is detected is higher than default temperature threshold, the control
Device 11 controls first point of mouth 1 of the refrigerant triple valve 107 gradually to close small, meanwhile, second point of mouth 2 is then gradually opened greatly.
When the temperature value that the temperature sensor 12 is detected reaches default temperature threshold, then the controller 11 is controlled
The first point of mouth 1 and second point of mouth 2 for making the refrigerant triple valve 107 keep the current small vast scale of folding.
The regulation of air-out humidity：
When the humidity value that the humidity sensor 13 is detected is less than default humidity threshold, the controller 11 is controlled
The energy adjustable type compressor 102 is performed in Unloading Condition, for lifting indoor humidity.
When the humidity value that the humidity sensor 13 is detected is higher than default humidity threshold, the controller 11 is controlled
The energy adjustable type compressor 102 is performed in loading condition, for reducing indoor humidity.
The leaving air temp of the machine and the adjustment of humidity have separate executive mode, and this regulation mechanism is different from typically
The temperature and humidity adjustment of air conditioner will be by compressor loads or the mode of unloading, when can solve temperature and humidity adjustment
The problem of two kinds of regulatory demands interfere restriction and influence degree of regulation, realizes that leaving air temp and humidity two indices are adjusted simultaneously
It is whole.
Embodiment two
It is similar with the pre-cooling type heat recovery type fresh air unit described in embodiment one, differ only in, as shown in figure 3, described
The delivery outlet of compressor 102 is connected with total mouth 3 of the refrigerant triple valve 107, second point of mouth 2 of the refrigerant triple valve 107
It is connected with the input port of the first condenser 103, the input of the condenser 104 of first point of mouth 1 and second of the refrigerant triple valve 107
Mouth connection.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. should be included in the utility model
Within the scope of protection.
Claims (10)
1. a kind of pre-cooling type heat recovery type fresh air unit, it is characterised in that the pre-cooling type heat recovery type fresh air unit includes：
Precool heat exchanger device and direct-evaporation-type refrigerating plant, the precool heat exchanger device are connected with direct-evaporation-type refrigerating plant, are used
The fresh air exported in reception from precool heat exchanger device；
The direct-evaporation-type refrigerating plant includes ventilation blower, compressor, the first condenser, second with surface radiating ability
Condenser, expansion valve, evaporator and refrigerant triple valve, the compressor, the first condenser, the second condenser and refrigerant triple valve
It is connected with each other, so that the refrigerant of compressor output enters first under the conducting effect of condensation triple valve with default ratio
Condenser and the second condenser；One end of the expansion valve and the input port of evaporator are connected, the other end and the first condenser and
The delivery outlet connection of second condenser, the delivery outlet of the evaporator and the input port of compressor are connected；The ventilation blower is set
In one end of the second condenser, for the gas of second condenser surface to be passed through into interior.
2. pre-cooling type heat recovery type fresh air unit according to claim 1, it is characterised in that the refrigerant triple valve has
First point of mouth, second Fen Kou and total mouth, are folding ratio complementary type between first point of mouth and second point of mouth, and the
Two-way admittance between one Fen Kou and total mouth, between the second Fen Kou and total mouth.
3. pre-cooling type heat recovery type fresh air unit according to claim 2, it is characterised in that the compressor and described the
The input port connection of one condenser and the second condenser, the delivery outlet of first condenser and the first of the condensation triple valve
Divide mouth connection, the delivery outlet of second condenser is connected with second point of mouth of the condensation triple valve, the condensation triple valve
Total mouth be connected with the expansion valve.
4. pre-cooling type heat recovery type fresh air unit according to claim 2, it is characterised in that the delivery outlet of the compressor
It is connected with total mouth of the refrigerant triple valve, first point of mouth of the refrigerant triple valve is connected with the input port of the first condenser,
Second point of mouth of the refrigerant triple valve is connected with the input port of the second condenser.
5. according to any described pre-cooling type heat recovery type fresh air unit of claim 2~4, it is characterised in that the pre-cooling type
Heat recovery type fresh air unit also includes controller, the folding ratio for controlling described first point of mouth of refrigerant triple valve and second point of mouth
Example.
6. pre-cooling type heat recovery type fresh air unit according to claim 5, it is characterised in that the pre-cooling type recovery type heat
Fresh air handling units also include temperature sensor, and the temperature sensor is arranged at the air outlet of ventilation blower, for detecting wind-warm syndrome
Degree, the temperature sensor is connected with the controller, and the controller goes out wind-warm syndrome according to what the temperature sensor was detected
Degree, according to default rule, controls the folding ratio of described first point of mouth of refrigerant triple valve and second point of mouth.
7. pre-cooling type heat recovery type fresh air unit according to claim 5, it is characterised in that the pre-cooling type recovery type heat
Fresh air handling units also include humidity sensor, and the humidity sensor is disposed in the interior, and the humidity for detecting room air is described
Humidity sensor is connected with the controller, and the compressor is energy adjustable type compressor, is connected with the controller, described
The indoor air humidity that controller is detected according to the humidity sensor, according to default rule, adjusts the energy adjustable
Type compressor is loading condition or Unloading Condition.
8. pre-cooling type heat recovery type fresh air unit according to claim 6, it is characterised in that the pre-cooling type recovery type heat
Fresh air handling units also include humidity sensor, and the humidity sensor is disposed in the interior, and the humidity for detecting room air is described
Humidity sensor is connected with the controller, and the compressor is energy adjustable type compressor, is connected with the controller, described
The indoor air humidity that controller is detected according to the humidity sensor, according to default rule, adjusts the energy adjustable
Type compressor is loading condition or Unloading Condition.
9. pre-cooling type heat recovery type fresh air unit according to claim 1, it is characterised in that first condenser is water
Cool condenser, second condenser is air-cooled condenser.
10. pre-cooling type heat recovery type fresh air unit according to claim 1, it is characterised in that first condenser is
Outdoor version air-cooled condenser, second condenser is air-cooled condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621363308.3U CN206420083U (en) | 2016-12-06 | 2016-12-06 | A kind of pre-cooling type heat recovery type fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621363308.3U CN206420083U (en) | 2016-12-06 | 2016-12-06 | A kind of pre-cooling type heat recovery type fresh air unit |
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| CN206420083U true CN206420083U (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621363308.3U Active CN206420083U (en) | 2016-12-06 | 2016-12-06 | A kind of pre-cooling type heat recovery type fresh air unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388732A (en) * | 2019-07-26 | 2019-10-29 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method, computer installation and readable storage medium storing program for executing |
| CN111561769A (en) * | 2020-05-21 | 2020-08-21 | 广东美的暖通设备有限公司 | Fresh air system, control method thereof and computer-readable storage medium |
| CN113864920A (en) * | 2021-09-24 | 2021-12-31 | 珠海格力电器股份有限公司 | Dehumidification heat pump air conditioning system |
| CN114413526A (en) * | 2022-01-20 | 2022-04-29 | 平顶山天安煤业股份有限公司 | Refrigeration method and control device of refrigeration system and compression refrigeration system |
-
2016
- 2016-12-06 CN CN201621363308.3U patent/CN206420083U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388732A (en) * | 2019-07-26 | 2019-10-29 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method, computer installation and readable storage medium storing program for executing |
| CN111561769A (en) * | 2020-05-21 | 2020-08-21 | 广东美的暖通设备有限公司 | Fresh air system, control method thereof and computer-readable storage medium |
| CN113864920A (en) * | 2021-09-24 | 2021-12-31 | 珠海格力电器股份有限公司 | Dehumidification heat pump air conditioning system |
| CN114413526A (en) * | 2022-01-20 | 2022-04-29 | 平顶山天安煤业股份有限公司 | Refrigeration method and control device of refrigeration system and compression refrigeration system |
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