CN114868568A - Greenhouse temperature adjusting device for indoor agricultural production - Google Patents
Greenhouse temperature adjusting device for indoor agricultural production Download PDFInfo
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- CN114868568A CN114868568A CN202210461865.2A CN202210461865A CN114868568A CN 114868568 A CN114868568 A CN 114868568A CN 202210461865 A CN202210461865 A CN 202210461865A CN 114868568 A CN114868568 A CN 114868568A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/245—Conduits for heating by means of liquids, e.g. used as frame members or for soil heating
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Greenhouses (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention is suitable for the technical field of agricultural facilities, and provides a greenhouse temperature adjusting device for indoor agricultural production, which comprises a piston block arranged in a heat exchange box in a lifting manner; the heat exchanger comprises a spiral elastic heat exchange coil arranged in a heat exchange box, wherein the top end of the spiral elastic heat exchange coil is integrally formed and communicated with an air inlet pipe; the cylinder body is fixedly arranged at the bottom of the heat exchange box, the end part of the air outlet pipe extends into the cylinder body in a sliding manner, and an air outlet pipe is arranged on one side of the bottom of the cylinder body; and the water supply mechanism is used for supplying water into the heat exchange box. The invention can finely regulate and control the temperature of the agricultural greenhouse, can further regulate the air outlet temperature of hot air, realizes that the greenhouse is kept in a temperature range, and has better use effect.
Description
Technical Field
The invention belongs to the technical field of agricultural facilities, and particularly relates to a greenhouse temperature adjusting device for indoor agricultural production.
Background
The greenhouse agriculture is an agriculture operated in an artificial heat-insulation facility, is a supplement of the traditional farmland, is divided into a glass greenhouse and a plastic greenhouse, is mainly used for over-season cultivation of vegetables, enables production and supply in winter and spring, and can obtain various agricultural products in cold regions by utilizing the greenhouse agricultural technology.
At present, a greenhouse is mostly designed to be covered with a plastic film on a support structure to form a closed heat preservation space, and obtains indoor temperature by sunlight irradiation.
The patent document with the publication number of CN 109924041A discloses an agricultural greenhouse temperature adjusting device, and its structure includes agricultural greenhouse body, heating device, outlet pipe, water tank, water pump, drinking-water pipe, excess temperature protection device and temperature sensor, the inside both sides distribution of agricultural greenhouse body has heating device, the inboard top of agricultural greenhouse body is equipped with the outlet pipe, the bottom cloth of outlet pipe has the spray nozzle, the right part of outlet pipe is equipped with the water pump, the left side of water pump is equipped with the drinking-water pipe, the drinking-water pipe passes through the inside of pipe connection in the water tank, the inboard top cloth of agricultural greenhouse body has temperature sensor, the top left side of agricultural greenhouse body is equipped with excess temperature protection device.
The patent document with the publication number of CN 211745682U discloses a temperature-adjustable greenhouse, which comprises a greenhouse main body, an inlet door, a door, fixed support columns, a framework, water storage tanks, planting tanks, heat-insulation films and a fan heater, wherein the water storage tanks are arranged on two sides of the greenhouse main body, driving motors are arranged at the tops of the water storage tanks, one sides of the water storage tanks are provided with purified water devices, water pipes are conveyed to water spraying heads at one ends through conveying water pumps, two sides of the upper portion of the greenhouse main body are provided with rainwater collecting tanks which are beneficial to conveniently collecting rainwater, filter screens are arranged in the rainwater collecting tanks, the frameworks are fixedly connected with two sides of the upper portion of each fixed support column, the heat-insulation films are laid on the framework, movable plates are arranged in the middle of two sides of the greenhouse main body, electric push rods are connected on the movable plates, and solar panels are arranged at the top ends of the greenhouse main body.
Still as disclosing in the patent document with publication number CN 210808514U, disclose a greenhouse temperature regulation apparatus for indoor agricultural production, including supporting mechanism and ventilation frame mechanism, the top of supporting mechanism is provided with ventilation frame mechanism, ventilation frame mechanism includes main body cover, ventilation panel, fixed screw, rubber pad, fixed panel, retainer plate, micro motor, flabellum and protection network, the inside ventilation panel that is provided with of main body cover's left end, the upper and lower both ends of ventilation panel all are provided with the fixed screw.
However, the temperature adjusting device provided by the above scheme cannot finely adjust and control the temperature of the agricultural greenhouse in practical application, only adopts a heat exchange mode to introduce hot air into the greenhouse, cannot further adjust the air outlet temperature of the hot air, realizes that the greenhouse is kept in a temperature range, and has obvious limitation in use.
Disclosure of Invention
The invention aims to provide a greenhouse temperature adjusting device for indoor agricultural production, and aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions.
A greenhouse temperature adjusting device for indoor agricultural production, adjusting device include:
the lifting type electric water heater comprises a piston block arranged in a heat exchange box, wherein the height of the piston block in the heat exchange box is adjusted through an electric telescopic rod, and an electric heating plate is arranged on the piston block and used for heating water in the heat exchange box;
the heat exchanger comprises a spiral elastic heat exchange coil arranged in a heat exchange box, wherein the top end of the spiral elastic heat exchange coil is integrally formed and communicated with an air inlet pipe;
the cylinder body is fixedly arranged at the bottom of the heat exchange box, the end part of the air outlet pipe extends into the cylinder body in a sliding manner, and an air outlet pipe is arranged on one side of the bottom of the cylinder body;
and the water supply mechanism is used for supplying water into the heat exchange box.
In one embodiment of the present invention, the exhaust pipe is further provided with a temperature sensor, and the temperature sensor is used for detecting the temperature of the air flow discharged through the exhaust pipe; the heat exchange box is also provided with a controller used for controlling the electric telescopic rod to stretch, and the signal input end of the controller is electrically connected with the temperature sensor.
In one embodiment of the present invention, the water supply mechanism includes a first water tank disposed at one side of the heat exchange tank, the first water tank and the heat exchange tank are communicated through an upper water supply port and a lower water supply port, respectively, water in the first water tank can enter the heat exchange tank through the upper water supply port, and water in the first water tank can also enter the heat exchange tank through the lower water supply port.
In one embodiment of the present invention, the water supply mechanism further comprises a second water tank disposed at the other side of the heat exchange tank, and the bottom of the second water tank is lower than the bottom of the first water tank; the bottom of the second water tank is connected with the bottom of the first water tank through a circulating piece, and the circulating piece is used for enabling water at the bottom of the second water tank to circularly enter the first water tank.
In one embodiment of the present invention, the circulating member includes a circulating pipe connected to the bottom of the second water tank, the other end of the circulating pipe is connected to an inlet of a water pump, an outlet of the water pump is provided with a backflow inlet pipe, the backflow inlet pipe is connected to the bottom of the first water tank, the circulating pipe is further provided with a one-way valve, after the water pump is started, water in the bottom of the second water tank enters the first water tank in a one-way manner through the one-way valve, and the water in the first water tank can be prevented from flowing back into the second water tank through the one-way valve due to the fact that the bottom of the first water tank is higher than the bottom of the second water tank.
In one embodiment provided by the invention, a first baffle and a second baffle are respectively fixedly installed on two sides of the piston block, the first baffle corresponds to the first water tank, and the second baffle corresponds to the second water tank; the first baffle plate is provided with a first through hole, the second baffle plate is provided with a second through hole, and the second through hole is higher than the first through hole;
when the first through hole is aligned with the lower water supply port, the second through hole is aligned with the lower water discharge port;
the second through hole is aligned with the upper drain port when the first through hole is aligned with the upper water supply port.
In one embodiment provided by the invention, the connection and disconnection between the top of the first water tank and the water replenishing tank are controlled by a water drainage valve; the sewer valve comprises:
the top end of the sewer pipe is connected with the water replenishing tank, and the bottom end of the sewer pipe is connected with the first water tank;
the annular block is matched with the inner cavity of the ring pipe and is provided with a water through hole;
the floating ball is arranged on the liquid level in the first water tank, the floating ball is provided with a rack in a supporting connection mode through a vertical connecting rod, the rack is linked with the annular plugging block, when the liquid level in the first water tank descends, the downward moving rack drives the annular plugging block to rotate, so that the water through hole rotates and is in a conduction state with the sewer pipe, and at the moment, water in the water replenishing tank enters the first water tank through the sewer pipe and the water through hole.
In one embodiment of the invention, in order to realize the linkage between the annular block and the rack, a toothed ring meshed with the rack is coaxially and fixedly arranged on the annular block, so that when the rack moves downwards, the toothed ring is driven to rotate, namely, the annular block is driven to rotate in the ring pipe, and the limber hole can be communicated with a sewer pipe.
In one embodiment of the invention, the outer surface of the heat exchange box is further provided with a first heat insulation layer corresponding to the first water tank; and a second heat insulation layer corresponding to the second water tank is further arranged on the outer surface of the heat exchange box.
In an embodiment provided by the invention, the second water tank is further provided with a liquid level sensor, the liquid level sensor is electrically connected with the controller, and when the liquid level sensor detects that the liquid level in the second water tank reaches the position where the liquid level sensor is located, the controller is used for controlling the water pump to be started, so that the liquid level in the second water tank is always lower than the level of the liquid level sensor.
Compared with the prior art, the greenhouse temperature adjusting device provided by the invention has the advantages that the piston block moves upwards in the heat exchange box by controlling the electric telescopic rod to extend, so that more spiral elastic heat exchange coils are positioned below the liquid level in the heat exchange box, the heat exchange area of the spiral elastic heat exchange coils is enlarged, and the temperature of air flow exhausted through the exhaust pipe is higher; when temperature sensor detects that the temperature of blast pipe exhaust air current is higher than the threshold value, controller control electric telescopic handle shortens for the piston block moves down, makes less spiral elasticity heat exchange coil be in under the liquid level of heat transfer incasement, makes spiral elasticity heat exchange coil heat transfer area diminish, and then makes the air current temperature through the blast pipe exhaust step down. The invention can finely regulate and control the temperature of the agricultural greenhouse, can further regulate the air outlet temperature of hot air, realizes that the greenhouse is kept in a temperature range, and has better use effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic structural view of a greenhouse temperature regulating device for indoor agricultural production;
FIG. 2 is a schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the heat exchange box provided by the present invention;
FIG. 4 is a schematic view of the invention showing the engagement of the piston block with the retainer;
FIG. 5 is a schematic structural diagram of a spiral elastic heat exchange coil provided by the present invention;
fig. 6 is a partially enlarged structural view at B in fig. 3.
In the drawings: 100. a heat exchange box; 101. a first insulating layer; 102. a vent hole; 103. a second thermal insulation layer; 200. a water replenishing tank; 201. a sewer pipe; 202. a ring pipe; 203. an annular block; 204. a water through hole; 205. a toothed ring; 206. a rack; 207. a floating ball; 208. a vertical connecting rod; 300. a first water tank; 301. an upper water supply port; 302. a lower water supply port; 400. a second water tank; 401. an upper drainage port; 402. a lower drainage port; 403. a liquid level sensor; 500. a water pump; 501. a circulation pipe; 502. a one-way valve; 503. a backflow inlet pipe; 600. a barrel; 601. an exhaust pipe; 602. a temperature sensor; 603. a controller; 604. an electric telescopic rod; 700. a helical elastic heat exchange coil; 701. an air inlet pipe; 702. an air outlet pipe; 800. a piston block; 801. a first baffle plate; 802. a second baffle; 803. a first through hole; 804. a second through hole; 805. an electric heating plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
As shown in fig. 1 and 5, in one embodiment provided by the present invention, a greenhouse temperature regulating device for indoor agricultural production comprises:
the piston block 800 is arranged in the heat exchange box 100 in a lifting mode, the height of the piston block 800 in the heat exchange box 100 is adjusted through an electric telescopic rod 604, an electric heating plate 805 is arranged on the piston block 800, and the electric heating plate 805 is used for heating water in the heat exchange box 100;
the heat exchanger comprises a spiral elastic heat exchange coil 700 arranged in a heat exchange box 100, wherein the top end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air inlet pipe 701, the air inlet pipe 701 is fixedly installed on the top plate of the heat exchange box 100 in a penetrating mode, the bottom end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air outlet pipe 702, and the air outlet pipe 702 is fixedly installed on a piston block 800 in a penetrating mode;
the cylinder 600 is fixedly arranged at the bottom of the heat exchange box 100, the end part of the air outlet pipe 702 extends into the cylinder 600 in a sliding manner, and one side of the bottom of the cylinder 600 is provided with an air outlet pipe 601;
a water supply mechanism for supplying water into the heat exchange tank 100.
Therefore, in the specific implementation of the temperature adjustment device provided in the embodiment of the present invention, after water is added into the heat exchange box 100 by the water supply mechanism, the water in the heat exchange box 100 is heated by the electric heating plate 805, airflow to be heated is blown into the spiral elastic heat exchange coil 700 through the air inlet pipe 701, the heated airflow enters the cylinder 600 through the air outlet pipe 702 and is finally discharged through the air outlet pipe 601, and the temperature in the greenhouse is adjusted by the heated airflow.
It can be understood that, because the liquid level exists in the heat exchange box 100, the heat exchange effect of the airflow in the spiral elastic heat exchange coil 700 under water in the heat exchange box 100 is good, and the heat exchange of the airflow in the spiral elastic heat exchange coil 700 is mainly concentrated on the part under water in the heat exchange box 100; therefore, when the temperature of the air current exhausted through the exhaust pipe 601 is required to be increased, only the expansion and contraction of the electric telescopic rod 604 need to be controlled, so that the piston block 800 moves upwards in the heat exchange box 100, at the moment, the spiral elastic heat exchange coil 700 is compressed, and meanwhile, the liquid level in the heat exchange box 100 is raised, therefore, when the spiral elastic heat exchange coil 700 is compressed, under the condition of the same liquid level, more spiral elastic heat exchange coils 700 are positioned below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coil 700 is increased, and the temperature of the air current exhausted through the exhaust pipe 601 can be higher.
With continued reference to fig. 1, 3 and 6, in the embodiment of the present invention, the exhaust pipe 601 is further provided with a temperature sensor 602, and the temperature sensor 602 is configured to detect a temperature of the airflow exhausted through the exhaust pipe 601; the heat exchange box 100 is further provided with a controller 603 for controlling the electric telescopic rod 604 to stretch, a signal input end of the controller 603 is electrically connected with the temperature sensor 602, and when the temperature sensor 602 detects that the temperature of the air flow discharged from the exhaust pipe 601 is lower than a threshold value, the controller 603 controls the electric telescopic rod 604 to stretch, so that the piston block 800 moves upwards in the heat exchange box 100, more spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coils 700 is increased, and the temperature of the air flow discharged from the exhaust pipe 601 is higher; on the contrary, when the temperature sensor 602 detects that the temperature of the airflow discharged from the exhaust pipe 601 is higher than the threshold value, the controller 603 controls the electric telescopic rod 604 to shorten, so that the piston block 800 moves down, and less spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, so that the heat exchange area of the spiral elastic heat exchange coils 700 is reduced, and the temperature of the airflow discharged from the exhaust pipe 601 is reduced.
Example 2
As shown in fig. 1 and 5, in one embodiment provided by the present invention, a greenhouse temperature regulating device for indoor agricultural production comprises:
the piston block 800 is arranged in the heat exchange box 100 in a lifting mode, the height of the piston block 800 in the heat exchange box 100 is adjusted through an electric telescopic rod 604, an electric heating plate 805 is arranged on the piston block 800, and the electric heating plate 805 is used for heating water in the heat exchange box 100;
the heat exchanger comprises a spiral elastic heat exchange coil 700 arranged in a heat exchange box 100, wherein the top end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air inlet pipe 701, the air inlet pipe 701 is fixedly installed on the top plate of the heat exchange box 100 in a penetrating mode, the bottom end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air outlet pipe 702, and the air outlet pipe 702 is fixedly installed on a piston block 800 in a penetrating mode;
the cylinder 600 is fixedly arranged at the bottom of the heat exchange box 100, the end part of the air outlet pipe 702 extends into the cylinder 600 in a sliding manner, and one side of the bottom of the cylinder 600 is provided with an air outlet pipe 601;
a water supply mechanism for supplying water into the heat exchange tank 100.
Therefore, in the specific implementation of the temperature adjustment device provided in the embodiment of the present invention, after water is added into the heat exchange box 100 by the water supply mechanism, the water in the heat exchange box 100 is heated by the electric heating plate 805, airflow to be heated is blown into the spiral elastic heat exchange coil 700 through the air inlet pipe 701, the heated airflow enters the cylinder 600 through the air outlet pipe 702 and is finally discharged through the air outlet pipe 601, and the temperature in the greenhouse is adjusted by the heated airflow.
It can be understood that, because the liquid level exists in the heat exchange box 100, the heat exchange effect of the airflow in the spiral elastic heat exchange coil 700 under water in the heat exchange box 100 is good, and the heat exchange of the airflow in the spiral elastic heat exchange coil 700 is mainly concentrated on the part under water in the heat exchange box 100; therefore, when the temperature of the air current exhausted through the exhaust pipe 601 is required to be increased, only the expansion and contraction of the electric telescopic rod 604 need to be controlled, so that the piston block 800 moves upwards in the heat exchange box 100, at the moment, the spiral elastic heat exchange coil 700 is compressed, and meanwhile, the liquid level in the heat exchange box 100 is raised, therefore, when the spiral elastic heat exchange coil 700 is compressed, under the condition of the same liquid level, more spiral elastic heat exchange coils 700 are positioned below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coil 700 is increased, and the temperature of the air current exhausted through the exhaust pipe 601 can be higher.
With continued reference to fig. 1, 3 and 6, in the embodiment of the present invention, the exhaust pipe 601 is further provided with a temperature sensor 602, and the temperature sensor 602 is configured to detect a temperature of the airflow exhausted through the exhaust pipe 601; the heat exchange box 100 is further provided with a controller 603 for controlling the electric telescopic rod 604 to stretch, a signal input end of the controller 603 is electrically connected with the temperature sensor 602, and when the temperature sensor 602 detects that the temperature of the air flow discharged from the exhaust pipe 601 is lower than a threshold value, the controller 603 controls the electric telescopic rod 604 to stretch, so that the piston block 800 moves upwards in the heat exchange box 100, more spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coils 700 is increased, and the temperature of the air flow discharged from the exhaust pipe 601 is higher; on the contrary, when the temperature sensor 602 detects that the temperature of the airflow discharged from the exhaust pipe 601 is higher than the threshold value, the controller 603 controls the electric telescopic rod 604 to shorten, so that the piston block 800 moves down, and less spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, so that the heat exchange area of the spiral elastic heat exchange coils 700 is reduced, and the temperature of the airflow discharged from the exhaust pipe 601 is reduced.
As shown in fig. 1, 3 and 4, in a preferred embodiment of the present invention, the water supply mechanism includes a first water tank 300 disposed at one side of the heat exchange tank 100, the first water tank 300 and the heat exchange tank 100 are communicated through an upper water supply inlet 301 and a lower water supply inlet 302, respectively, water in the first water tank 300 can be introduced into the heat exchange tank 100 through the upper water supply inlet 301, and water in the first water tank 300 can also be introduced into the heat exchange tank 100 through the lower water supply inlet 302.
Further, in the embodiment of the present invention, the water supply mechanism further includes a second water tank 400 disposed at the other side of the heat exchange tank 100, and a bottom of the second water tank 400 is lower than a bottom of the first water tank 300; the bottom of the second water tank 400 is connected with the bottom of the first water tank 300 through a circulating member, and the circulating member is used for circulating the water at the bottom of the second water tank 400 into the first water tank 300.
Preferably, as shown in fig. 1, in the embodiment of the present invention, the circulation member includes a circulation pipe 501 connected to the bottom of the second water tank 400, the other end of the circulation pipe 501 is connected to an inlet of a water pump 500, an outlet of the water pump 500 is provided with a backflow inlet pipe 503, the backflow inlet pipe 503 is connected to the bottom of the first water tank 300, the circulation pipe 501 is further provided with a one-way valve 502, by the one-way valve 502, water in the bottom of the second water tank 400 is unidirectionally introduced into the first water tank 300 after the water pump 500 is started, and since the bottom of the first water tank 300 is higher than the bottom of the second water tank 400, water in the first water tank 300 is prevented from flowing back into the second water tank 400 by the one-way valve 502.
Further, in the embodiment of the present invention, a first baffle 801 and a second baffle 802 are respectively fixedly installed on two sides of the piston block 800, the first baffle 801 corresponds to the first water tank 300, and the second baffle 802 corresponds to the second water tank 400; the first baffle 801 is provided with a first through hole 803, the second baffle 802 is provided with a second through hole 804, and the second through hole 804 is higher than the first through hole 803;
in one state, when the first through hole 803 is aligned with the lower water supply port 302, the second through hole 804 is aligned with the lower water discharge port 402;
in another state, when the first through hole 803 is aligned with the upper water supply port 301, the second through hole 804 is aligned with the upper water supply port 401.
It is understood that in the specific implementation of the embodiment of the present invention, the heating of the water in the heat exchange box 100 by the electric heating plate 805 will result in the generation of steam, so that the water in the heat exchange box 100 is reduced after a period of use; therefore, the present invention controls the extension and contraction of the electric telescopic rod 604, so that the piston block 800 moves upwards to make the first through hole 803 align with the lower water supply port 302, and the second through hole 804 aligns with the lower water discharge port 402, in this state, water in the first water tank 300 flows into the heat exchange tank 100 through the lower water supply port 302 and the first through hole 803, and water in the heat exchange tank 100 is discharged through the second through hole 804 and the lower water discharge port 402, and at this time, the liquid level in the heat exchange tank 100 is at the position of the second through hole 804; correspondingly, when the first through hole 803 is aligned with the upper water supply port 301, the second through hole 804 is aligned with the upper water supply port 401, the liquid level in the heat exchange tank 100 is still based on the piston block 800, and the liquid level is flush with the second through hole 804, so that the liquid level in the heat exchange tank 100 can be kept at the original position in a water replenishing state; when the first through hole 803 is in a state of being staggered with the upper water supply port 301 and the lower water supply port 302, the second through hole 804 is also in a state of being staggered with the upper drain port 401 and the lower drain port 402, at this time, the liquid level in the heat exchange box 100 is in a closed state, and in this state, the heating of the water in the heat exchange box 100 is restarted by the electric heating plate 805;
therefore, only when the liquid level needs to be supplemented, and the first through hole 803 is aligned with the upper water supply inlet 301 or the lower water supply inlet 302, in other states, the temperature of the air flow discharged through the exhaust pipe 601 can be controlled by adjusting the position of the piston block 800 in the heat exchange box 100, and further the temperature of the greenhouse can be adjusted.
Referring to fig. 1 and fig. 3, in the embodiment of the present invention, the top of the heat exchange box 100 is provided with a vent 102, which is convenient for balancing the air pressure in the heat exchange box 100, so as to prevent the pressure in the heat exchange box 100 from increasing when the electric heating plate 805 heats the water in the heat exchange box 100.
Example 3
As shown in fig. 1 and 5, in one embodiment provided by the present invention, a greenhouse temperature regulating device for indoor agricultural production comprises:
the piston block 800 is arranged in the heat exchange box 100 in a lifting mode, the height of the piston block 800 in the heat exchange box 100 is adjusted through an electric telescopic rod 604, an electric heating plate 805 is arranged on the piston block 800, and the electric heating plate 805 is used for heating water in the heat exchange box 100;
the heat exchanger comprises a spiral elastic heat exchange coil 700 arranged in a heat exchange box 100, wherein the top end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air inlet pipe 701, the air inlet pipe 701 is fixedly installed on the top plate of the heat exchange box 100 in a penetrating mode, the bottom end of the spiral elastic heat exchange coil 700 is integrally formed and communicated with an air outlet pipe 702, and the air outlet pipe 702 is fixedly installed on a piston block 800 in a penetrating mode;
the cylinder 600 is fixedly arranged at the bottom of the heat exchange box 100, the end part of the air outlet pipe 702 extends into the cylinder 600 in a sliding manner, and one side of the bottom of the cylinder 600 is provided with an air outlet pipe 601;
a water supply mechanism for supplying water into the heat exchange tank 100.
Therefore, in the specific implementation of the temperature adjustment device provided in the embodiment of the present invention, after water is added into the heat exchange box 100 by the water supply mechanism, the water in the heat exchange box 100 is heated by the electric heating plate 805, airflow to be heated is blown into the spiral elastic heat exchange coil 700 through the air inlet pipe 701, the heated airflow enters the cylinder 600 through the air outlet pipe 702 and is finally discharged through the air outlet pipe 601, and the temperature in the greenhouse is adjusted by the heated airflow.
It can be understood that, because the liquid level exists in the heat exchange box 100, the heat exchange effect of the airflow in the spiral elastic heat exchange coil 700 under water in the heat exchange box 100 is good, and the heat exchange of the airflow in the spiral elastic heat exchange coil 700 is mainly concentrated on the part under water in the heat exchange box 100; therefore, when the temperature of the air current exhausted through the exhaust pipe 601 is required to be increased, only the expansion and contraction of the electric telescopic rod 604 need to be controlled, so that the piston block 800 moves upwards in the heat exchange box 100, at the moment, the spiral elastic heat exchange coil 700 is compressed, and meanwhile, the liquid level in the heat exchange box 100 is raised, therefore, when the spiral elastic heat exchange coil 700 is compressed, under the condition of the same liquid level, more spiral elastic heat exchange coils 700 are positioned below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coil 700 is increased, and the temperature of the air current exhausted through the exhaust pipe 601 can be higher.
With continued reference to fig. 1, 3 and 6, in the embodiment of the present invention, the exhaust pipe 601 is further provided with a temperature sensor 602, and the temperature sensor 602 is configured to detect a temperature of the airflow exhausted through the exhaust pipe 601; the heat exchange box 100 is further provided with a controller 603 for controlling the electric telescopic rod 604 to stretch, a signal input end of the controller 603 is electrically connected with the temperature sensor 602, and when the temperature sensor 602 detects that the temperature of the air flow discharged from the exhaust pipe 601 is lower than a threshold value, the controller 603 controls the electric telescopic rod 604 to stretch, so that the piston block 800 moves upwards in the heat exchange box 100, more spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, the heat exchange area of the spiral elastic heat exchange coils 700 is increased, and the temperature of the air flow discharged from the exhaust pipe 601 is higher; on the contrary, when the temperature sensor 602 detects that the temperature of the airflow discharged from the exhaust pipe 601 is higher than the threshold value, the controller 603 controls the electric telescopic rod 604 to shorten, so that the piston block 800 moves down, and less spiral elastic heat exchange coils 700 are located below the liquid level in the heat exchange box 100, so that the heat exchange area of the spiral elastic heat exchange coils 700 is reduced, and the temperature of the airflow discharged from the exhaust pipe 601 is reduced.
As shown in fig. 1, 3 and 4, in a preferred embodiment of the present invention, the water supply mechanism includes a first water tank 300 disposed at one side of the heat exchange tank 100, the first water tank 300 and the heat exchange tank 100 are communicated through an upper water supply inlet 301 and a lower water supply inlet 302, respectively, water in the first water tank 300 can be introduced into the heat exchange tank 100 through the upper water supply inlet 301, and water in the first water tank 300 can also be introduced into the heat exchange tank 100 through the lower water supply inlet 302.
Further, in the embodiment of the present invention, the water supply mechanism further includes a second water tank 400 disposed at the other side of the heat exchange tank 100, and a bottom of the second water tank 400 is lower than a bottom of the first water tank 300; the bottom of the second water tank 400 is connected with the bottom of the first water tank 300 through a circulating member, and the circulating member is used for circulating the water at the bottom of the second water tank 400 into the first water tank 300.
Preferably, as shown in fig. 1, in the embodiment of the present invention, the circulation member includes a circulation pipe 501 connected to the bottom of the second water tank 400, the other end of the circulation pipe 501 is connected to an inlet of a water pump 500, an outlet of the water pump 500 is provided with a backflow inlet pipe 503, the backflow inlet pipe 503 is connected to the bottom of the first water tank 300, the circulation pipe 501 is further provided with a one-way valve 502, by the one-way valve 502, water in the bottom of the second water tank 400 is unidirectionally introduced into the first water tank 300 after the water pump 500 is started, and since the bottom of the first water tank 300 is higher than the bottom of the second water tank 400, water in the first water tank 300 is prevented from flowing back into the second water tank 400 by the one-way valve 502.
Further, in the embodiment of the present invention, a first baffle 801 and a second baffle 802 are respectively fixedly installed on two sides of the piston block 800, the first baffle 801 corresponds to the first water tank 300, and the second baffle 802 corresponds to the second water tank 400; the first baffle 801 is provided with a first through hole 803, the second baffle 802 is provided with a second through hole 804, and the second through hole 804 is higher than the first through hole 803;
in one state, when the first through hole 803 is aligned with the lower water supply port 302, the second through hole 804 is aligned with the lower water discharge port 402;
in another state, when the first through hole 803 is aligned with the upper water supply port 301, the second through hole 804 is aligned with the upper water supply port 401.
It is understood that in the specific implementation of the embodiment of the present invention, the heating of the water in the heat exchange box 100 by the electric heating plate 805 will result in the generation of steam, so that the water in the heat exchange box 100 is reduced after a period of use; therefore, according to the present invention, by controlling the extension and retraction of the electric telescopic rod 604, when the piston block 800 moves upwards to make the first through hole 803 align with the lower water supply port 302, the second through hole 804 aligns with the lower water discharge port 402, in this state, water in the first water tank 300 flows into the heat exchange tank 100 through the lower water supply port 302 and the first through hole 803, and water in the heat exchange tank 100 is discharged through the second through hole 804 and the lower water discharge port 402, at this time, the liquid level in the heat exchange tank 100 is at the position of the second through hole 804; correspondingly, when the first through hole 803 is aligned with the upper water supply port 301, the second through hole 804 is aligned with the upper water supply port 401, the liquid level in the heat exchange tank 100 is still based on the piston block 800, and the liquid level is flush with the second through hole 804, so that the liquid level in the heat exchange tank 100 can be kept at the original position in a water replenishing state; when the first through hole 803 is in a state of being staggered with the upper water supply port 301 and the lower water supply port 302, the second through hole 804 is also in a state of being staggered with the upper drain port 401 and the lower drain port 402, at this time, the liquid level in the heat exchange box 100 is in a closed state, and in this state, the heating of the water in the heat exchange box 100 is restarted by the electric heating plate 805;
therefore, only when the liquid level needs to be supplemented, and the first through hole 803 is aligned with the upper water supply inlet 301 or the lower water supply inlet 302, in other states, the temperature of the air flow discharged through the exhaust pipe 601 can be controlled by adjusting the position of the piston block 800 in the heat exchange box 100, and further the temperature of the greenhouse can be adjusted.
Referring to fig. 1 and fig. 3, in the embodiment of the present invention, the top of the heat exchange box 100 is provided with a vent 102, which is convenient for balancing the air pressure in the heat exchange box 100, so as to prevent the pressure in the heat exchange box 100 from increasing when the electric heating plate 805 heats the water in the heat exchange box 100.
In the embodiment of the present invention, as shown in fig. 1-2, the connection and disconnection between the top of the first water tank 300 and the water replenishing tank 200 are controlled by a drain valve.
Specifically, in an embodiment of the present invention, the sewer valve includes:
the top end of the downcomer 201 is connected with the water replenishing tank 200, and the bottom end of the downcomer 201 is connected with the first water tank 300;
the annular block 203 is matched with the inner cavity of the ring pipe 202, and a water through hole 204 is formed in the annular block 203;
the floating ball 207 is arranged on the liquid level in the first water tank 300, the floating ball 207 is provided with the rack 206 in a supporting connection mode through the vertical connecting rod 208, the rack 206 is linked with the annular blocking block 203, when the liquid level in the first water tank 300 descends, the downward moving rack 206 drives the annular blocking block 203 to rotate, the water through hole 204 is enabled to rotate and be in a conduction state with the sewer pipe 201, and at the moment, water in the water replenishing tank 200 enters the first water tank 300 through the sewer pipe 201 and the water through hole 204.
In order to realize the linkage between the annular block 203 and the rack 206, a toothed ring 205 meshed with the rack 206 is coaxially and fixedly installed on the annular block 203, so that when the rack 206 moves downwards, the toothed ring 205 is driven to rotate, that is, the annular block 203 is driven to rotate in the ring pipe 202, and the limber hole 204 can be communicated with the downcomer 201.
Preferably, in the embodiment of the present invention, the outer surface of the heat exchange box 100 is further provided with a first insulation layer 101 corresponding to the first water tank 300; the outer surface of the heat exchange box 100 is also provided with a second heat insulation layer 103 corresponding to the second water tank 400.
Preferably, in the embodiment of the present invention, the second water tank 400 is further provided with a liquid level sensor 403, the liquid level sensor 403 is electrically connected to the controller 603, and when the liquid level sensor 403 detects that the liquid level in the second water tank 400 reaches the position where the liquid level sensor 403 is located, the controller 603 is used to control the water pump 500 to start, so that the liquid level in the second water tank 400 is always kept lower than the level of the liquid level sensor 403.
The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an indoor agricultural is greenhouse temperature adjusting device for production which characterized in that includes:
the lifting type electric water heater comprises a piston block arranged in a heat exchange box, wherein the height of the piston block in the heat exchange box is adjusted through an electric telescopic rod, and an electric heating plate is arranged on the piston block and used for heating water in the heat exchange box;
the heat exchanger comprises a spiral elastic heat exchange coil arranged in a heat exchange box, wherein the top end of the spiral elastic heat exchange coil is integrally formed and communicated with an air inlet pipe;
the cylinder body is fixedly arranged at the bottom of the heat exchange box, the end part of the air outlet pipe extends into the cylinder body in a sliding manner, and an air outlet pipe is arranged on one side of the bottom of the cylinder body;
and the water supply mechanism is used for supplying water into the heat exchange box.
2. The greenhouse temperature adjustment device for indoor agricultural production according to claim 1, wherein the exhaust duct is further provided with a temperature sensor for detecting a temperature of the exhaust air flow through the exhaust duct; the heat exchange box is also provided with a controller used for controlling the electric telescopic rod to stretch, and the signal input end of the controller is electrically connected with the temperature sensor.
3. The greenhouse temperature adjusting apparatus for indoor agricultural production according to claim 2, wherein the water supply mechanism includes a first water tank disposed at one side of the heat exchange tank, and the first water tank and the heat exchange tank are communicated with each other through an upper water supply port and a lower water supply port, respectively.
4. The greenhouse temperature adjusting apparatus for indoor agricultural production according to claim 3, wherein the water supply mechanism further comprises a second water tank provided at the other side of the heat exchange tank, and a bottom of the second water tank is lower than a bottom of the first water tank; the bottom of the second water tank is connected with the bottom of the first water tank through a circulating piece, and the circulating piece is used for enabling water at the bottom of the second water tank to circularly enter the first water tank.
5. The greenhouse temperature adjusting device for indoor agricultural production according to claim 4, wherein the circulating member comprises a circulating pipe connected to the bottom of the second water tank, the other end of the circulating pipe is connected to an inlet of a water pump, an outlet of the water pump is provided with a return inlet pipe, the return inlet pipe is connected to the bottom of the first water tank, and the circulating pipe is further provided with a check valve.
6. The greenhouse temperature adjusting device for indoor agricultural production according to claim 4 or 5, wherein a first baffle plate and a second baffle plate are respectively fixedly installed on two sides of the piston block, the first baffle plate corresponds to the first water tank, and the second baffle plate corresponds to the second water tank; the first baffle plate is provided with a first through hole, the second baffle plate is provided with a second through hole, and the second through hole is higher than the first through hole;
when the first through hole is aligned with the lower water supply port, the second through hole is aligned with the lower water discharge port;
the second through hole is aligned with the upper drain port when the first through hole is aligned with the upper water supply port.
7. The greenhouse temperature adjusting device for indoor agricultural production according to claim 4, wherein the connection and disconnection between the top of the first water tank and the water replenishing tank are controlled by a drain valve;
the sewer valve comprises:
the top end of the sewer pipe is connected with the water replenishing tank, and the bottom end of the sewer pipe is connected with the first water tank;
the annular block is matched with the inner cavity of the ring pipe and is provided with a water through hole;
the floating ball is arranged on the liquid level in the first water tank, a rack is connected and arranged on the floating ball through a vertical connecting rod in a supporting mode, and the rack is linked with the annular blocking block.
8. The greenhouse temperature adjusting device for indoor agricultural production according to claim 7, wherein a toothed ring meshed with the rack is coaxially and fixedly installed on the annular block.
9. The greenhouse temperature regulating device for indoor agricultural production according to claim 6, wherein the outer surface of the heat exchange box is further provided with a first heat insulating layer corresponding to the first water tank; and a second heat insulation layer corresponding to the second water tank is further arranged on the outer surface of the heat exchange box.
10. The greenhouse temperature regulating device for indoor agricultural production according to claim 8, wherein the second water tank is further provided with a liquid level sensor, and the liquid level sensor is electrically connected with the controller.
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| CN202210461865.2A CN114868568B (en) | 2022-04-28 | 2022-04-28 | Greenhouse temperature adjusting device for indoor agricultural production |
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