A kind of thermoregulating system and its control method of nursery greenhouse
Technical field
The present invention relates to a kind of technical fields of temperature adjustment heating equipment, specifically, being related to a kind of temperature adjustment of nursery greenhouse
System and its control method.
Background technique
Before the rise of industrialized agriculture greenhouse, just have and gone along with sb. to guard him by translucent material, heats small spatial loop using solar thermal energy
Border enables the technological means that plantation object is grown across season, cross-region in it, and industrialized agriculture more optimizes promotes this more on a large scale
One technological means such as obtains heat by the way of fire coal/combustion gas-to-electric to maintain the design temperature in greenhouse, its shortcoming is that
Low-cost equipment is easy pollution environment, operating cost height, and the high equipment of price causes investment to increase again, less economical.In addition,
The prior art can not also solve the nursery four seasons or morning and evening temperature fluctuation is larger, and sapling is caused to freeze to death, or excessively high in summer temp
Lead to problems such as nursery growth period bad.
In view of this, the present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of temperature adjustment system of nursery greenhouse
System and its control method.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of thermoregulating system of nursery greenhouse, comprising:
Heat pump system, the heat pump system include evaporator, compressor, condenser and throttling set;
The air duct of internal fan is set to inside nursery greenhouse, so that the air-flow inside nursery greenhouse is recycled;
Heat transferring medium is sequentially communicated in the circulation loop to be formed in the evaporator, compressor, condenser and throttling set
Circulation, uses air as energy source so that the air-flow for flowing through air duct is heated or cooled.
As an implementation, the air duct is set to the top of nursery greenhouse, and the blower is set to the entrance in air duct,
The condenser is set to the front of the air outlet of blower.
As an implementation, the heat pump system includes the four-way valve that series connection is set in circulation loop, with switching
The flow direction of heat transferring medium in evaporator.
As an implementation, humidifier is equipped in the air duct, to adjust the air humidity inside nursery greenhouse.
As an implementation, the humidifier is set to the front of condenser along air current flow direction.
As an implementation, the exit in the air duct is equipped with air distributing structure, so that heated in air duct or cooling
The downward Uniform Flow of air-flow afterwards.
Preferably, the air distributing structure is homogenating plate, multiple air-permeating holes including plate body and on plate body.
As an implementation, the heat pump system is air source heat pump system, and the evaporator, compressor are set to
Outside nursery greenhouse, it is connected to outside atmosphere.
As an implementation, the front and rear of the condenser is respectively equipped with temperature sensor, to detect back
Wind or supply air temperature.
As an implementation, the front of the compressor is equipped with gas-liquid separator, return line is equipped with oil separation
Device, outer wall are equipped with heat tape.
Preferably, blower includes motor, electric machine support and flabellum, is equipped with heat tape below the flabellum.
Preferably, defrosting temperature sensor is equipped at the separating tube of the evaporator.
The thermoregulating system for any nursery greenhouse that another object of the present invention is to provide a kind of as described in above content
Control method controls heat transferring medium in the evaporator with first direction stream when environment temperature is lower than the first set temperature
Dynamic, heating flows through the air-flow in air duct.
As an implementation, when environment temperature is higher than the second set temperature, heat transferring medium is controlled in the evaporation
It is flowed in device with second direction, the cooling air-flow for flowing through air duct.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
The present invention heats to nursery using air source heat pump system, guarantees to tie up at night or inside the nursery greenhouse in winter
It holds in the suitable temperature ranges for being suitable for nursery growth, toxic gas will not be generated, safety and environmental protection, efficiency is high, and can save
Save heating cost.In addition, excessively high in summer temp, nursery thermoregulating system of the invention can be also used for reducing the temperature in greenhouse
Degree avoids high temperature from shortening the florescence of flower seedling class plant.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of nursery thermoregulating system of the present invention.
It is marked in figure:
1, nursery greenhouse;2, plantling;3, air distributing structure;4, humidifier;5, condenser;6, blower;7, air duct;8, it evaporates
Device;9, compressor.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
A kind of thermoregulating system of nursery greenhouse, as shown in Figure 1, comprising:
Heat pump system, the heat pump system include evaporator 8, compressor 9, condenser 5 and throttling set;
The air duct 7 of internal fan 6 is set to inside nursery greenhouse 1, so that the air-flow inside nursery greenhouse 1 is recycled;
Heat transferring medium is sequentially communicated the circulation loop to be formed in the evaporator 8, compressor 9, condenser 5 and throttling set
Middle circulation uses air as energy source so that the air-flow for flowing through air duct 7 is heated or cooled.
As an implementation, the heat pump system includes the four-way valve that series connection is set in circulation loop, with switching
The flow direction of heat transferring medium in evaporator 8.
As an implementation, humidifier 4 is equipped in the air duct 7, it is wet to adjust air inside nursery greenhouse 1
Degree.
Preferably, the humidifier 4 is set to the front of condenser 5 along air current flow direction.
As an implementation, the exit in the air duct 7 is equipped with air distributing structure 3, so that heated or cold in air duct 7
But the downward Uniform Flow of air-flow after;
Preferably, the air distributing structure 3 is homogenating plate, multiple air-permeating holes including plate body and on plate body.
As an implementation, the heat pump system is air source heat pump system, and the evaporator 8, compressor 9 are set
Outside nursery greenhouse 1, it is connected to outside atmosphere.
As an implementation, the front and rear of the condenser 5 is respectively equipped with temperature sensor, to detect back
Wind or supply air temperature.
As an implementation, the front of the compressor 9 is equipped with gas-liquid separator, return line is equipped with oil separation
Device, outer wall are equipped with heat tape;
Preferably, blower 6 includes motor, electric machine support and flabellum, is equipped with heat tape below the flabellum.
Preferably, defrosting temperature sensor is equipped at the separating tube of the evaporator 8.
Another object of the present invention is to provide a kind of control methods of the thermoregulating system of nursery greenhouse as described above, work as ring
When border temperature is lower than the first set temperature, control heat transferring medium is flowed in the evaporator 8 with first direction, and heating flows through wind
The air-flow in road 7.
As an implementation, when environment temperature is higher than the second set temperature, heat transferring medium is controlled in the evaporation
It is flowed in device 8 with second direction, the cooling air-flow for flowing through air duct 7.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
The present invention heats to nursery using air source heat pump system, guarantees to tie up at night or inside the nursery greenhouse in winter
It holds in the suitable temperature ranges for being suitable for nursery growth, toxic gas will not be generated, safety and environmental protection, efficiency is high, and can save
Save heating cost.
Embodiment 2
The present embodiment is further limiting or optimize or replace on an equal basis to embodiment 1, can with the scheme of embodiment 1 into
Row combination or transformation use.
A kind of thermoregulating system of nursery greenhouse, as shown in Figure 1, comprising:
Nursery greenhouse 1;
Air source heat pump unit;
The air source heat pump unit includes:
Compressor 9 and evaporator 8 are set to outside nursery greenhouse 1;
Condenser 5 is set to inside nursery greenhouse 1;
Throttling set;
The compressor 9, evaporator 8, condenser 5 are connected to the circulating path to form heat transferring medium with throttling set, heat exchange
Medium recycles in circulation loop, and uses air as energy source so that the air-flow for flowing through air duct 7 is heated or cooled.
When needing to increase the temperature of nursery greenhouse 1, air is as heat source, and heat transferring medium is in the evaporator 8, compressor
9, condenser 5 and throttling set, which are sequentially communicated in the circulation loop to be formed, recycles, and uses air as heat source to heat and flows through wind
The air-flow in road 7.
When needing to reduce the temperature of nursery greenhouse 1, air is as cold source, and heat transferring medium is in the evaporator 8, compressor
9, condenser 5 and throttling set, which are sequentially communicated in the circulation loop to be formed, recycles, and uses air as heat source with cooling and flows through wind
The air-flow in road 7.
As one embodiment of the present invention, the air source heat pump unit further includes reversal valve, the reversal valve string
It is coupled in circulating path, to switch the flow direction of the heat transferring medium in evaporator 8.
Electric expansion valve specifically can be used in above-mentioned throttling set, and reversal valve is four-way valve, electric expansion valve and four-way valve
It is series in circulating path.
As one embodiment of the present invention, air duct 7 is equipped with inside nursery greenhouse 1, blower is arranged in the entrance in air duct 7
6, condenser 5 is arranged in the front of the air outlet of the blower 6.
Blower 6 is arranged in the entrance in air duct 7, to provide air mobilization dynamic in nursery greenhouse 1, convenient for making in greenhouse 1
Temperature it is uniform, promote airflow circulating and exchange.
As one embodiment of the present invention, the air duct 7 is set to the top in nursery, and the exit in air duct 7 is equipped with equal
Wind structure 3.
As one embodiment of the present invention, the air distributing structure 3 is the homogenating plate for being uniformly provided with multiple openings.
As one embodiment of the present invention, the front of the condenser 5 is equipped with humidity regulation structure, to adjust seedling
Humidity in garden greenhouse 1, it is preferable that the humidity regulation structure is humidifier 4.
As one embodiment of the present invention, the front and rear of the condenser 5 is respectively equipped with temperature sensor,
To detect return air and supply air temperature.
As one embodiment of the present invention, including control unit is stated, described control unit is according to temperature sensor
Temperature is detected, the on-off of four-way valve is controlled, to switch the flow direction of the heat transferring medium in evaporator 8, to the gas for flowing through air duct 7
Stream is heated or cooled.
As one embodiment of the present invention, the front of the compressor 9 is equipped with gas-liquid separator, to ensure compression
The oil return and lubrication of machine 9;The return line of compressor 9 is equipped with oil eliminator, to prevent compressor 9 caused by liquid hammer from damaging;Pressure
The outer wall of contracting machine 9 is equipped with heat tape, to guarantee 9 temperature of compressor in cold winter.
As one embodiment of the present invention, blower 6 includes motor, electric machine support and flabellum, the lower section of the flabellum
Heat tape is installed, condensation water freezing collision flabellum is prevented, flabellum is caused to damage.
Defrosting temperature sensor is equipped with as one embodiment of the present invention, at the separating tube of the evaporator 8.
Another object of the present invention is to provide a kind of control methods of nursery thermoregulating system, wherein the nursery temperature adjustment
System includes nursery greenhouse 1 and air source heat pump unit, and the heat transferring medium controlled in the air source heat pump unit is followed
Ring, to adjust the internal temperature of greenhouse 1.
As one embodiment of the present invention, when the internal temperature of nursery greenhouse 1 is lower than the first set temperature, control
Heat transferring medium in the evaporator 8 of the air source heat pump unit is flowed with first direction;
When the internal temperature of nursery greenhouse 1 is higher than the second set temperature, the steaming of the air source heat pump unit is controlled
Heat transferring medium in hair device 8 is flowed with second direction.
The case where temperature adjustment heating of floral nursery is applied particularly to below with reference to the present invention is illustrated, such as sweet osmanthus
When nursery, especially sweet osmanthus nursery is when north of China cultivates, and at night or when winter (temperature is at -25 DEG C -0 DEG C), control is empty
Air supply heat pump unit heats into nursery, it is ensured that nursery temperature improves sapling survival rate;In addition, when summer temp is excessively high
When, the heat in nursery is delivered to outside atmosphere by control air source heat pump unit, and solution is excessively high in summer temp, leads to sweet osmanthus
The problem of florescence shortens.
The present invention heats to nursery using air source heat pump system, guarantees at night or inside the nursery greenhouse 1 in winter
It maintains and is suitable in the suitable temperature ranges of nursery growth, will not generate toxic gas, safety and environmental protection, efficiency is high, and can be with
Save heating cost.In addition, excessively high in summer temp, nursery thermoregulating system of the invention can be also used for reducing nursery greenhouse 1
Interior temperature avoids high temperature from shortening the florescence of flower seedling class plant.
Embodiment 3
The present embodiment is that embodiment 1 or 2 are further limited or optimized.
Nursery greenhouse 1 is equipped with ventilation device, and the import of ventilation device is connected to outside, the outlet and air duct of ventilation device
7 inlet communication when divulging information convenient for nursery greenhouse 1, fast implements air-flow exchange, sufficient carbon source is provided for plant, to carry out
Photosynthesis.Alternatively, it is also possible to exchange by the air-flow with outside air, the temperature in nursery greenhouse 1 is adjusted to corresponding plant
The suitable temperature range of object, saves energy consumption.
The front and rear of the condenser 5 is respectively equipped with temperature sensor, will be right to detect return air and supply air temperature
The temperature information answered is converted into electric signal and is transmitted to control unit, and control unit is by the electric signal and preset temperature signal
It is compared judgement, and according to the heat transferring medium in the evaporator 8 of the heat transferring medium of judging result control air source heat pump unit
It is flowed according to corresponding direction.
Above-mentioned ventilation device is electrically connected with above-mentioned control unit, the temperature that control unit is detected according to temperature sensor
Judge and controls opening or closing for ventilation device.
The inside of nursery greenhouse 1 be equipped with carbon dioxide concentration detecting device, the carbon dioxide concentration detecting device with it is upper
State control unit electrical connection, control unit judged according to carbon dioxide concentration detecting device and control ventilation device unlatching or
It closes.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.