CN112772399B - A vertical greening cultivation system for exterior walls - Google Patents

Abstract

The invention discloses an external wall vertical greening cultivation system which comprises an insulation box body, a water mist generating device, a fan heater, a liquid supplementing unit and a control unit, wherein a circulating air duct is arranged in the insulation box body, and a plurality of prepressing expansion cotton pipes are regularly arranged on the front side wall of the insulation box body. The water mist generating device is arranged at the top of the circulating air channel and comprises a nutrient solution tank and an ultrasonic atomizer, the top of the nutrient solution tank is open, and the ultrasonic atomizer is arranged in the nutrient solution tank. The fan heater is arranged in the circulating air duct, and the signal end of the fan heater is in communication connection with the control unit. The liquid replenishing unit is arranged on one side of the heat preservation box body and comprises a nutrient solution box body and a proportion pump, the proportion pump is arranged on the nutrient solution box body, and a signal end of the proportion pump is communicated with the control unit. The heat preservation box body of the invention conveys water and nutrient solution to the root of the plant through the aerosol circulation, provides constant temperature and humidity environment for the root and stem part of the plant, and avoids the root and stem of the plant from being frostbitten, thereby ensuring that the plant winters smoothly.

Description

A vertical greening cultivation system for exterior walls

Technical Field

The invention relates to the technical field of external wall vertical greening, and in particular to an external wall vertical greening cultivation system.

Background Art

In recent years, vertical greening has been widely used in urban landscapes. However, due to the low temperature in winter in northern regions, the water supply of conventional vertical greening systems cannot meet the wintering needs of plants. The low temperature in winter causes the water circulation pipes installed on the exterior walls to freeze, making it impossible to supply water to the plants in vertical greening, resulting in plant death due to lack of water. In addition, the roots and stems of plants on the exterior walls of vertical greening plants lack insulation measures, and the cold climate in winter can easily cause frostbite on the roots and stems of plants, resulting in large-scale plant death.

Therefore, the existing technology is further improved and enhanced by combining it with relevant technologies of passive houses.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to propose an exterior wall vertical greening cultivation system to solve the problem that the water circulation pipes of the exterior wall are easily frozen in winter, the water cannot be supplied to the vertical greening plants, the roots and stems of the exterior wall vertical greening plants are frozen, and large-scale death thereof is caused.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A vertical greening cultivation system for an exterior wall comprises a heat preservation box, a water mist generating device, a fan heater, a liquid replenishing unit and a control unit. The heat preservation box has a circulating air duct inside and a plurality of pre-compression expansion cotton tubes are regularly arranged on the front side wall.

The water mist generating device is arranged at the top of the circulating air duct, and comprises a nutrient solution water tank and an ultrasonic atomizer. The top of the nutrient solution water tank is open, and the ultrasonic atomizer is installed in the nutrient solution water tank.

The fan heater is arranged in the circulating air duct, and a signal end thereof is communicatively connected with the control unit.

The liquid supplement unit is arranged on one side of the heat preservation box, and comprises a nutrient solution box and a proportional pump. The proportional pump is arranged on the nutrient solution box, and a signal end of the proportional pump is communicatively connected with the control unit.

Furthermore, the thermal insulation box body is a flat rectangular cavity structure, and the wall panel of the thermal insulation box body is a three-layer composite structure, which includes a waterproof vapor barrier membrane, a thermal insulation layer and a waterproof breathable membrane from the inside to the outside.

A first partition is vertically arranged on one side of the thermal insulation box body, and the first partition divides the interior of the thermal insulation box body into a main cavity and a side cavity which are independent of each other, and the circulating air duct is located in the main cavity of the thermal insulation box body.

Furthermore, a second partition is provided in the middle of the main cavity, and the second partition is arranged vertically, and its left and right sides are connected to the inner wall of the main cavity to form the circulating air duct.

The nutrient solution water tank is fixedly mounted on the top of the second partition plate through a water tank bracket, an electronic liquid level meter is arranged inside the nutrient solution water tank, and a water inlet pipe is arranged on the nutrient solution water tank.

Furthermore, a water return groove is provided at the bottom of the main cavity, and the outer wall of the water return groove is in contact with the inner wall of the main cavity.

The return water tank is connected to the nutrient solution tank through a return water pipe. A water pump is arranged on the return water pipe. The signal end of the water pump is communicatively connected to the control unit.

Furthermore, all the pre-compression expansion cotton tubes are located in an area on the front side of the heat preservation box body corresponding to the main cavity, and the area is provided with mounting holes equal in number to the pre-compression expansion cotton tubes and corresponding in position.

The main body of the pre-compression expansion cotton tube is embedded in the corresponding installation hole, and the front end thereof is a bell-mouth structure with an outwardly turned edge and is attached to the outer wall of the heat preservation box.

Furthermore, the nutrient solution tank and the proportional pump are both located in the side cavity, the nutrient solution tank is connected to the nutrient solution tank through a nutrient solution delivery pipe, and the proportional pump can deliver the nutrient solution in the nutrient solution tank into the nutrient solution tank.

Furthermore, the fan heater is installed at the upper rear of the nutrient solution tank, with its air outlet facing the front. In the working state, the airflow in the circulating air duct located in front of the second partition moves from top to bottom.

Furthermore, the control unit includes a controller and a temperature and humidity sensor. The controller is arranged in the side cavity, and the signal end of the fan heater is communicatively connected with the controller.

There are two temperature and humidity sensors, both of which are arranged on the front side of the second partition and are arranged in an upper and lower manner. The signal ends of the temperature and humidity sensors are communicatively connected with the controller.

Furthermore, there are a plurality of fan heaters, which are arranged adjacent to each other in a transverse direction, and the air outlets of each fan heater are all facing forward.

By adopting the above technical solution, the beneficial technical effect of the present invention is as follows: the present invention combines the relevant technologies of passive houses, adopts an insulation box made of low thermal conductivity materials, and delivers water and nutrient solution to the roots of plants through aerosol circulation to promote their growth, providing a growth environment with stable temperature and humidity for the rhizomes of plants. The internal environment of the insulation box will not be changed by the low temperature outside, so that the rhizomes of plants are prevented from being frostbitten, thereby allowing the plants to successfully overwinter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structural principle of an exterior wall vertical greening cultivation system of the present invention.

FIG. 2 is a schematic structural diagram of an exterior wall vertical greening cultivation system of the present invention after removing the right side wall panel.

FIG3 is a schematic structural diagram of a portion of the present invention in FIG1, showing the wall panel of the heat preservation box.

FIG. 4 is a schematic diagram of the right side structure of an exterior wall vertical greening cultivation system according to the present invention.

DETAILED DESCRIPTION

The present invention is described in detail below in conjunction with the accompanying drawings:

Embodiment, in conjunction with Figures 1 to 4, a vertical greening cultivation system for an exterior wall includes an insulation box 1, a water mist generating device 2, a fan heater 3, a liquid replenishing unit 4 and a control unit 5. The insulation box 1 is a flat rectangular cavity structure, and the wall panel of the insulation box 1 is a three-layer composite structure, which is a waterproof vapor barrier membrane 11, an insulation layer 12 and a waterproof breathable membrane 13 from the inside to the outside, and the cavity inside the insulation box 1 is closed. The insulation box 1 is fixed to the exterior wall by mortar bonding. For exterior walls with higher floor heights, the insulation box 1 can be fixed to the exterior wall by mortar bonding + bracket.

The insulation layer 12 is made of an EPS foam board with a certain thickness and good insulation effect. The waterproof vapor barrier film 11 is attached to the inner wall of the insulation layer 12. The waterproof vapor barrier film 11 has a good waterproof effect and is used as a vapor barrier. It is used on the inner side of the insulation layer to prevent moisture in the insulation box 1 from penetrating into the insulation layer and affecting the service life of the insulation layer. The waterproof breathable film 13 is attached to the outer wall of the insulation layer 12. The waterproof breathable film is a waterproof and breathable film that can provide a certain amount of air inside the insulation box 1 for the roots and stems of green plants to breathe.

A first partition 15 is vertically provided on one side of the heat preservation box 1. The first partition 15 is a rectangular EPS foam board, and its four straight sides are respectively integrated with the inner wall of the heat preservation box 1. The first partition 15 divides the interior of the heat preservation box 1 into independent main cavity and side cavity. The circulating air duct 14 is located in the main cavity of the heat preservation box 1. The two side walls of the first partition 15 are both pasted with waterproof vapor barrier films 11. The water mist generating device 2 and the fan heater 3 are located in the main cavity, and the liquid replenishment unit 4 and the control unit 5 are located in the side cavity. The waterproof vapor barrier film 11 on the first partition 15 can prevent moisture in the main cavity from passing through the first partition 15 and entering the side cavity.

The interior of the thermal insulation box 1 has a circulating air duct 14, and a plurality of pre-stressed expansion cotton tubes 6 are regularly arranged on its front side wall. A second partition 16 is provided in the middle of the main cavity. The second partition 16 is arranged vertically, and its left and right sides are connected to the inner wall of the main cavity to form the circulating air duct 14. The circulating air duct 14 is a U-shaped channel that is connected to the front and back sides and to the top and bottom. All pre-stressed expansion cotton tubes 6 are located in the area on the front side of the thermal insulation box 1 corresponding to the main cavity. The area is provided with mounting holes that are equal in number and corresponding in position to the pre-stressed expansion cotton tubes 6, and all mounting holes are regularly arranged in a matrix.

The pre-compression expansion cotton tube 6 is a tubular structure supported by pre-compression expansion cotton. The main part of the pre-compression expansion cotton tube 6 is embedded in the corresponding installation hole, and its front end is a trumpet structure with an outwardly turned edge, and is attached to the outer wall of the insulation box 1. The stem of the plant 10 is located in the pre-compression expansion cotton tube 6, and its root is located inside the insulation box 1. Since the pre-compression expansion cotton is elastic and has a certain insulation effect, the outer wall of the pre-compression expansion cotton tube 6 is close to the inner wall of the installation hole, and the inner side of the pre-compression expansion cotton tube 6 wraps the stem of the plant, so as to achieve the sealing of the inside of the insulation box 1.

The outside of the heat preservation box 1 is provided with a power supply, which is connected to each electrical device through a wire and supplies power to it. The water mist generating device 2 is fixedly installed on the top of the circulating air duct 14, and includes a nutrient solution tank 21 and an ultrasonic atomizer. The top of the nutrient solution tank 21 is open, and the nutrient solution tank 21 is fixedly installed on the inner upper part of the heat preservation box 1 through a tank bracket 24, and the ultrasonic atomizer is installed in the nutrient solution tank 21. The nutrient solution tank 21 contains diluted nutrient solution, and the ultrasonic atomizer 23 is located below the liquid level. When powered on, the ultrasonic atomizer 23 generates water mist above the liquid level. The fan heater 3 is arranged in the circulating air duct 14, and its signal end is connected to the control unit 5 for communication. There are multiple fan heaters 3, which are arranged adjacent to each other in a horizontal direction and fixed on the inner side of the heat preservation box 1. The air outlets of each fan heater 3 are all facing forward, blowing the water mist containing the nutrient solution to flow in the circulating air duct 14.

All the fan heaters 3 are installed at the upper rear of the nutrient solution tank 21, with the air outlet facing the front. In the working state, the airflow with water mist in the circulating air duct 14 located in front of the second partition 16 moves from top to bottom, and after reaching the lower end of the circulating air duct 14, it flows back upward from the rear of the second partition 16 to the air inlet end of the fan heater 3, and is further heated by the fan heater 3 before being blown out, so that the interior of the heat preservation box 1 maintains a constant temperature circulating air. The water mist contacts the rhizomes of the plants at the front of the second partition 16 and adheres to the rhizomes of the plants, providing the plants with the required water and nutrients.

The nutrient solution tank 21 is fixedly mounted on the top of the second partition 16, and an electronic liquid level meter is arranged inside the nutrient solution tank 21. The electronic liquid level meter and the nutrient solution tank 21 are provided with a water inlet pipe 7, and the water inlet pipe 7 is provided with a solenoid valve. The signal ends of the solenoid valve and the electronic liquid level meter are respectively connected to the control unit 5 for communication. A return water tank 22 is fixedly mounted on the bottom of the main cavity, and the outer wall of the return water tank 22 is attached to the inner wall of the main cavity and sealed and bonded into one. The return water tank 22 is connected to the nutrient solution tank 21 through a return water pipe, and a water pump is arranged on the return water pipe, and the signal end of the water pump is connected to the control unit 5 for communication.

After the water mist generated by the nutrient solution tank 21 flows in the circulating air duct 14 and contacts the rhizomes of the plants, it will condense into water droplets and fall into the return tank 22 for collection. After the water in the return tank 22 is collected to a certain extent, the water pump pumps the water in the return tank 22 to the nutrient solution tank 21 through the return pipe for recycling. As the rhizomes of the plants absorb water, after a period of time, it is necessary to replenish water into the nutrient solution tank 21 through the water inlet pipe 7. At the same time, it is also necessary to replenish nutrient solution into the nutrient solution tank 21 to keep the nutrient solution in the nutrient solution tank 21 within a certain concentration range.

The control unit 5 includes a controller 51 and a temperature and humidity sensor 52. The controller 51 is arranged in the side cavity. The controller 51 adopts a single chip microcomputer already available in the prior art. The signal end of the fan heater 3 is connected to the controller 51 for communication. There are two temperature and humidity sensors 52, both of which are arranged on the front side of the second partition 16 and arranged in an upper and lower manner. The signal end of each temperature and humidity sensor 52 is connected to the controller for communication. The temperature and humidity sensor 52 collects the temperature and humidity information in the circulating air duct 14 and transmits the information to the controller 51. The controller 51 adjusts the concentration of the water mist generated by the ultrasonic atomizer and the degree of heating of the circulating air by the fan heater 3 according to the information collected by the temperature and humidity sensor 52, so that the circulating air in the circulating air duct 14 is maintained within a reasonable range and the environment required for plant growth is kept stable.

The liquid replenishment unit 4 is arranged at the lower part of the side cavity of the heat preservation box 1, and includes a nutrient solution box 41 and a proportional pump 42. The proportional pump 42 is arranged on the nutrient solution box 41, and its signal end is communicatively connected with the control unit 5. The nutrient solution box 41 and the proportional pump 42 are both located in the side cavity. The nutrient solution box 41 is connected to the nutrient solution tank 21 through the nutrient solution delivery pipe 43. The proportional pump 42 can deliver the nutrient solution in the nutrient solution box 41 to the nutrient solution tank 21. The nutrient solution box 41 is filled with nutrient solution. When the water inlet pipe 7 replenishes water into the nutrient solution tank 21, the controller 51 pumps the nutrient solution of the corresponding proportional flow rate into the nutrient solution tank 21 through the proportional pump 42 according to the flow rate of replenishment, so as to ensure that the plants obtain the required nutrients for growth.

Parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “backward”, “left” and “right” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims (5)

1. The vertical greening cultivation system for the outer wall body is characterized by comprising an insulation box body, a water mist generating device, a fan heater, a liquid supplementing unit and a control unit, wherein a circulating air duct is arranged in the insulation box body, and a plurality of prepressing expansion cotton pipes are regularly arranged on the front side wall of the insulation box body;

the water mist generating device is arranged at the top of the circulating air duct and comprises a nutrient solution water tank and an ultrasonic atomizer, the top of the nutrient solution water tank is open, and the ultrasonic atomizer is arranged in the nutrient solution water tank;

The fan heater is arranged in the circulating air duct, and the signal end of the fan heater is in communication connection with the control unit;

the liquid supplementing unit is arranged on one side of the heat preservation box body and comprises a nutrient solution box body and a proportion pump, the proportion pump is arranged on the nutrient solution box body, and a signal end of the proportion pump is in communication connection with the control unit;

the heat-insulating box body is of a flat cuboid cavity structure, the wall plate of the heat-insulating box body is of a three-layer composite structure, and a waterproof vapor-barrier film, a heat-insulating layer and a waterproof breathable film are sequentially arranged from inside to outside;

A first partition plate is vertically arranged on one side of the heat preservation box body, the first partition plate divides the interior of the heat preservation box body into a main cavity and a side cavity which are independent, and the circulating air duct is positioned in the main cavity of the heat preservation box body;

The middle part of the main cavity is provided with a second baffle plate, the second baffle plate is vertically arranged, and the left side and the right side of the second baffle plate are connected with the inner wall of the main cavity into a whole to form the circulating air duct;

The nutrient solution tank is fixedly arranged at the top of the second partition board through a tank bracket, an electronic liquid level meter is arranged in the nutrient solution tank, and a water inlet pipe is arranged on the nutrient solution tank;

A water return tank is arranged at the bottom of the main cavity, and the outer side wall of the water return tank is attached to the inner wall of the main cavity;

The water return tank is connected with the nutrient solution tank through a water return pipe, a water pump is arranged on the water return pipe, and a signal end of the water pump is in communication connection with the control unit;

All the pre-pressing expansion cotton pipes are positioned in the area corresponding to the main cavity at the front side of the heat insulation box body, and the area is internally provided with mounting holes which are equal to the pre-pressing expansion cotton pipes in number and corresponding to the pre-pressing expansion cotton pipes in position;

The main body part of the pre-pressing expansion cotton pipe is embedded in the corresponding mounting hole, and the front end of the main body part is of a flared structure which is turned outwards and is attached to the outer wall of the heat insulation box body.

2. The vertical greening cultivation system of the outer wall according to claim 1, wherein the nutrient solution box body and the proportional pump are both positioned in the side cavity, the nutrient solution box body is connected with the nutrient solution trough through a nutrient solution conveying pipe, and the proportional pump can convey the nutrient solution in the nutrient solution box body into the nutrient solution trough.

3. The vertical greening cultivation system of the outer wall according to claim 1, wherein the fan heater is arranged above and behind the nutrient solution water tank, the air outlet of the fan heater faces to the front side, and in the working state, the circulating air channel is positioned on the front side of the second partition plate and moves from top to bottom.

4. The vertical greening cultivation system of the outer wall body according to claim 1, wherein the control unit comprises a controller and a temperature and humidity sensor, the controller is arranged in the side cavity, and a signal end of the fan heater is in communication connection with the controller;

the temperature and humidity sensor has two, all sets up in the front side of second baffle, and is the mode and arranges from top to bottom, temperature and humidity sensor's signal terminal links to each other with the controller communication.

5. The system according to claim 1, wherein a plurality of fan heaters are arranged adjacent to each other in a lateral direction, and air outlets of the fan heaters are uniformly directed forward.