Photovoltaic plasma nitrogen fertilizer production equipment cabinet

Abstract

The utility model relates to a photovoltaic plasma nitrogen fertilizer production equipment cabinet. The cabinet comprises a housing, the housing is of a hexahedral right trapezoid structure formed by a front cuboid housing and an inclined rear panel, a plurality of photovoltaic panels are fixedly installed on the rear panel, the front panel of the housing is a cabinet door, and an upper layer partition plate and a lower layer partition plate are arranged in the housing and divide the inner space of the housing into an upper layer, a middle layer and a lower layer; the upper layer is a power supply layer, the middle layer is a reaction layer, the lower layer is a collection layer, a lower clamping groove is formed below the lower-layer partition plate in the shell, and an upper clamping groove and a middle clamping groove are formed below the upper-layer partition plate. The photovoltaic nitrogen fertilizer production device has the advantages of being convenient to place, flexible and convenient to use, convenient to overhaul and capable of reducing the failure rate of the device, and occupied cultivated land area is reduced.

Description

Technical Field

[0001] The utility model relates to a nitrogen fertilizer production equipment cabinet, in particular to a photovoltaic plasma nitrogen fertilizer production equipment cabinet. Background Art

[0002] In the northeast region of China, the terrain is flat and the sunlight is sufficient, which is suitable for crop planting. In recent years, remarkable results have been achieved under the "agricultural-light complementary mode". However, the traditional nitrogen fixation method consumes a large amount of fossil energy every year, posing a great threat to the environment. At the same time, the centralized production mode leads to an increase in transportation costs. By combining photovoltaic and nitrogen fixation equipment, using plasma technology to excite air to generate nitrogen oxides and collecting them with water to make nitric acid, and directly irrigating the soil after adjusting the pH value, it will not cause soil eutrophication or environmental impact. There are many existing photovoltaic nitrogen fertilizer production equipment, but there is no special setting cabinet at present, resulting in scattered placement of each equipment, having certain potential safety hazards, being prone to failures, and also occupying a large amount of space, bringing great inconvenience to growers. After retrieval, no similar cabinet structure was found to be publicly disclosed. Therefore, developing a cabinet suitable for placing photovoltaic nitrogen fertilizer production equipment has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a photovoltaic plasma nitrogen fertilizer production equipment cabinet, which has the characteristics of being convenient for placing photovoltaic nitrogen fertilizer production equipment, reducing the occupied cultivated land area, being flexible and convenient to use, facilitating equipment maintenance, and reducing equipment failure rate.

[0004] To solve the above technical problem, the utility model is realized by the following technical solutions:

[0005] A photovoltaic plasma nitrogen fertilizer production equipment cabinet includes a housing, wherein the housing is a six-sided right trapezoid structure composed of a cuboid shell in the front and an inclined rear panel. Multiple photovoltaic panels are fixedly installed on the rear panel. The front panel of the housing is a cabinet door. An upper partition and a lower partition are arranged inside the housing, dividing the internal space of the housing into upper, middle, and lower layers. The upper layer is a power supply layer, the middle layer is a reaction layer, and the lower layer is a collection layer. A lower card slot is arranged below the lower partition inside the housing, and an upper card slot and a middle card slot are arranged below the upper partition.

[0006] Preferably, an upper horizontal wire slot is arranged between the upper partition and the upper card slot, a middle horizontal wire slot is arranged between the upper card slot and the middle card slot, and a lower horizontal wire slot is arranged at the position between the lower partition and the lower card slot. The upper horizontal wire slot, the middle wire slot, and the lower horizontal wire slot are all fixedly connected to the left and right side panels.

[0007] Preferably, an air switch, a terminal block, and a PLC controller are installed on the upper card slot, a button box and an intermediate relay are installed on the middle card slot, and an AC contactor, a water pump, a terminal block, and an air pump are installed on the lower card slot.

[0008] Preferably, the top plate of the above-mentioned outer shell is a backward-inclined structure.

[0009] Preferably, a 24V switching power supply, a photovoltaic controller, and an inverter are placed on the upper partition board, and a sliding arc plasma reaction chamber, a plasma power supply, and an air bag are placed on the lower partition board.

[0010] Preferably, the rear panel of the above-mentioned outer shell is hollowed out. A photovoltaic panel fixing bracket for fixing the photovoltaic panel is welded at the middle position of the rear panel. Three photovoltaic panels are placed on each of the left and right sides of the rear panel. The three photovoltaic panels on each side are connected in parallel by wires. The positive poles of the photovoltaic panels are connected together, and the negative poles are connected together. One wire is led out from each of the positive and negative poles and connected to the photovoltaic controller.

[0011] Preferably, water outlet holes and drain holes are provided at the lower parts of the two side panels of the above-mentioned outer shell.

[0012] Preferably, the upper partition board and the lower partition board are installed on the left and right side panels inside the outer shell, and the upper partition board and the lower partition board can be fixedly welded or screwed to the side panels.

[0013] Preferably, a battery bracket is installed on the inner bottom plate of the above-mentioned outer shell, a photovoltaic battery is placed on the battery bracket, and an absorption device is placed on the inner bottom plate of the outer shell.

[0014] Preferably, the included angle between the above-mentioned rear panel and the ground is 50°.

[0015] Due to the adoption of the above technical solution, the present utility model has the following characteristics and beneficial effects:

[0016] The present utility model has the characteristics of being convenient for placing photovoltaic nitrogen fertilizer production equipment, occupying a small space, being flexible and convenient to use, facilitating equipment maintenance, and reducing equipment failure rate. Description of the Drawings

[0017] Figure 1 It is a left-view structural schematic diagram of the cabinet body for placing the photovoltaic plasma nitrogen fertilizer production equipment of the present utility model.

[0018] Figure 2 It is a rear-view structural schematic diagram of the cabinet body for placing the photovoltaic plasma nitrogen fertilizer production equipment of the present utility model before laying the photovoltaic panels.

[0019] Figure 3 It is a rear-view structural schematic diagram of the cabinet body for placing the photovoltaic plasma nitrogen fertilizer production equipment of the present utility model after laying the photovoltaic panels.

[0020] Figure 4 This is the front view structural schematic diagram of the cabinet door of the present utility model for placing photovoltaic nitrogen fertilizer production equipment in an open state.

[0021] Figure 5 This is the equipment wiring diagram of the cabinet for placing photovoltaic nitrogen fertilizer production equipment of the present utility model

[0022] In the figure: 1. 24V switching power supply, 2. Photovoltaic panel fixing bracket, 3. Upper card slot, 4. Air switch, 5. Button box, 6. Sliding arc plasma reaction chamber, 7. Plasma power supply, 8. AC contactor, 9. Water pump, 10. Absorption device, 11. PLC controller, 12. Intermediate card slot, 13. Lower card slot, 14. Intermediate relay, 15. Air bag, 16. Air pump, 17. Photovoltaic battery, 18. Cabinet door, 19. Door handle, 20. Inverter, 21. Connect to photovoltaic controller, 22. Photovoltaic panel, 23. Upper partition board, 24. Lower partition board, 25. Battery support, 26. Water outlet hole, 27. Drainage hole. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figure 1 shown, a photovoltaic plasma nitrogen fertilizer production equipment cabinet of the present utility model includes a housing, and the housing is a six-sided right-angled trapezoid structure composed of a cuboid shell in the front and an inclined rear panel. The top plate of the housing is a backward-inclined structure, and the included angle between the rear panel and the ground is 50°. Water outlet holes 26 and drainage holes 27 are provided in the lower parts of the two side panels of the housing. A plurality of photovoltaic panels 22 are fixedly installed on the rear panel, as Figure 2 shown, the rear panel of the cabinet body adopts a hollow design, and photovoltaic panel fixing brackets 2 for fixing the photovoltaic panels 22 are provided in the center and on both sides of the rear panel. As Figure 3 shown, 6 photovoltaic panels 22 are laid on the rear panel of the housing body, with three photovoltaic panels 22 placed on each side. The photovoltaic panels 22 on each side are connected in parallel, and the lead-out wires are connected to the photovoltaic controller inside the housing. As Figure 4As shown in the figure, the front panel of the outer shell is a cabinet door 18, on which a door handle 19 is installed. Inside the outer shell, an upper partition 23 and a lower partition 24 are provided, dividing the internal space of the outer shell into upper, middle, and lower layers. The upper layer is the power supply layer, the middle layer is the reaction layer, and the lower layer is the collection layer. The upper partition 23 and the lower partition 24 are installed on the left and right side panels inside the outer shell. On the upper partition 23, two 24V switching power supplies 1, an inverter 20, and a photovoltaic controller 21 are placed. The upper partition 23 and the lower partition 24 can be fixedly welded or screwed to the side panels. Below the lower partition 24 inside the outer shell, a lower card slot 13 is provided, on which an AC contactor 8, a water pump 9, a terminal block, and an air pump 16 are installed. A lower horizontal wire slot is provided between the lower partition 24 and the lower card slot 13. On the inner bottom plate of the outer shell, a battery bracket 25 is installed, and the photovoltaic battery 17 is placed on the battery bracket 25. An absorption device 10 is placed on the inner bottom plate of the outer shell. On the lower partition 24, a sliding arc plasma reaction chamber 6, a plasma power supply 7, and an air bag 15 are placed. Below the upper partition 23, an upper card slot 3 and a middle card slot 12 are provided. An upper horizontal wire slot is provided between the upper partition 23 and the upper card slot 3. The upper card slot 3 and the middle card slot 12 are provided with a middle horizontal wire slot. An air switch 4, a terminal block, and a PLC controller 11 are installed on the upper card slot 3. A button box 5 and a middle relay 14 are installed on the middle card slot 12. The upper card slot 3, the middle card slot 12, and the lower card slot 13 are fixedly connected to the left and right side panels, and the upper horizontal wire slot, the middle wire slot, and the lower horizontal wire slot are all fixedly connected to the left and right side panels.

[0025] As Figure 5 shown, the photovoltaic panel 22, the battery 17, and the inverter 20 are respectively connected to the photovoltaic controller 21. The output side of the inverter 20 is connected to the L and N terminals of the switching power supply 1, which can provide stable AC and DC power for the system. And by connecting the two switching power supplies 1 in parallel, more DC terminals can be obtained, facilitating subsequent wiring. Electrical connections are made between the switching power supply 1, the button box 5, the sliding arc plasma reaction chamber 6, the plasma power supply 7, the AC contactor 8, the water pump 9, the PLC controller 11, the middle relay 14, and the air pump 16 using wires. Gas / liquid phase connections are required between the air pump 16, the sliding arc plasma reaction chamber 6, the absorption device 10, and the air bag 15 using rubber hoses. For the sake of the aesthetics inside the cabinet, to prevent wire dampness and misoperation due to short circuits between wires, the electrical connections and gas / liquid phase connections between each device are carried out inside the wire slots.

[0026] The DC side of the switching power supply 1 is connected to the power supply side of the PLC controller 11. The button box 5 is connected to the input side contacts of the PLC controller 11. The output side contacts of the PLC controller 11 are connected to the coil contacts of the intermediate relay 14. The coil contacts of the intermediate relay 14 are connected to the water pump 16 and the air pump 9. The AC side of the switching power supply 1 is connected to the coil contacts of the AC contactor 8 through the auxiliary contacts of the intermediate relay 14. The coil contacts of the AC contactor 8 are connected to the plasma power supply 7. The two power supply lines of the plasma power supply 7 are respectively connected to the two knife-shaped electrodes of the sliding arc plasma reaction chamber 6.

[0027] The air outlets at the top and bottom of the sliding arc plasma reaction chamber 6 are respectively connected to the two air pumps 9 through rubber hoses. One of the air pumps 9 supplies gas to the sliding arc plasma reaction chamber 6, and the other air pump 9 is used to discharge the reaction gas after the sliding arc plasma reaction chamber 6 discharges.

[0028] The absorption device is respectively connected to the air bag 15 and the two water pumps 9 through rubber hoses. One of the water pumps 9 is responsible for supplying water to the absorption device 10, and the other water pump 9 discharges the absorbed liquid in the absorption device 10 to the fixed farmland.

[0029] The PLC controller 11 is used to realize the automatic control of photovoltaic plasma nitrogen fertilizer production. The control signal sent by the PLC controller 11 makes the internal coil of the relay attract, so as to control the working state of the nitrogen fixation equipment. DC devices such as the air pump 9 and the water pump 16 can be directly controlled by the attraction of the coil of the intermediate relay 14 to control the operation of the DC devices. For AC devices such as the plasma power supply 7, the AC side signal of the switching power supply 1 needs to be introduced into the coil of the AC contactor 8 through the auxiliary contacts of the intermediate relay 14. The PLC controller 11 sends an action signal, the coil of the intermediate relay 11 attracts, the auxiliary contacts close, and the alternating current flows into the coil of the AC contactor 8 through the auxiliary contacts, making the plasma power supply 7 work. Using the control signal sent by the PLC controller 11, the coil of the intermediate relay 14 is attracted, so as to complete the automatic operation of the nitrogen fixation equipment.

[0030] The above electrical equipment are all commercially available products, specifically as follows:

[0031] 24V switching power supply, model LRS-150-24, brand Bosheng. Air switch, model NXB-63, brand CHNT. Plasma power supply, model CTP-2000K, brand Nanjing Suman. AC contactor, model S-N10, brand Mitsubishi. Intermediate relay, model RXM2LB2P7, brand Schneider. Water pump, model CKP-DC-S08, brand Kamel. Air pump, model HLVP6-SD24, brand Kamel. PLC controller, model S7-1200, brand Siemens. Photovoltaic controller, model HP2410, brand Snite Energy. Photovoltaic inverter, model Nike-3000W, brand Nike Technology. Solar panel, model monocrystalline 20W, brand Shengshang Photovoltaic Technology. Storage battery, model NPG12-100, brand NPP.

[0032] To facilitate the understanding of the nitrogen fertilizer production process of the present utility model, the entire process of the nitrogen fertilizer production process will be described below (hereinafter referred to as nitrogen fixation for short): After pressing the start button and the nitrogen fertilizer production process starts, first start the water pump 16 to supply water to the absorption device 10. The water intake volume is controlled by the water level sensor. The water level sensor is directly attached to the outer surface of the absorption device 10. The detection signal of the water level sensor is connected to the input side terminal of the PLC controller 11. After the water intake is completed, when the plasma power supply 7 receives the operation signal sent by the PLC controller 11, the plasma power supply 7 outputs a high voltage to excite the aluminum knife-shaped electrode of the sliding arc plasma reaction chamber 6. Gas breakdown occurs at the bottom between the two electrodes, and an arc appears. Electrochemical reactions occur around the arc (nitrogen oxides are generated under the catalytic action of air in the plasma region). Use the air pump 9 to push the arc to slide upward along the knife-shaped electrode. During the sliding process, the length of the arc gradually becomes longer, increasing the contact area with the gas and promoting the progress of the electrochemical reaction. When air flows into the plasma region, the free nitrogen can be converted into nitrogen oxides through the electrochemical reaction. The reacted gas exits from the gas outlet at the top of the sliding arc plasma reaction chamber 6, passes through the rubber tube through the air pump 9 and is stored in the gas bag 15. Finally, the nitrogen oxides in the gas bag 15 are introduced into the absorption device 10. After being absorbed by the aqueous solution, the nitrogen oxides are converted from molecular form into ionic form that can be directly absorbed by plants; It should be noted that: The above process of producing the reaction product gas needs to be repeated multiple times. When the number of repetitions reaches the set number of times of the set PLC controller 11, the nitrogen fixation product is finally led out from the water outlet hole 26 on the side of the nitrogen fixation cabinet body by the water pump 9 through the rubber tube and connected to the drip irrigation equipment to fertilize the crops. The above process is the automatic nitrogen fixation process of the cabinet body.

[0033] Considering that the cabinet is applied in Northeast China where there is snow accumulation in winter, the top of the cabinet is slightly inclined so that the snow can slide down to the bottom of the cabinet, preventing excessive snow accumulation from damaging the cabinet structure. Preferably, the photovoltaic battery is placed on top to prevent the photovoltaic battery from short-circuiting due to water leakage from the absorption device. The photovoltaic panel is installed on the inclined side, and the angle between the trapezoidal inclined plane and the ground is 50° to obtain the maximum irradiance, converting solar energy into electrical energy to the greatest extent and storing it in the battery. The interior of the cabinet is divided into three layers, namely the power supply layer, the reaction layer, and the collection layer from top to bottom. The front of the cabinet uses a single flat door and there are wire grooves on both the left and right sides inside for convenient wiring; the inclined plane of the cabinet is hollowed out, and photovoltaic panels are laid at the hollowed out part, with 3 photovoltaic panels on each side. Water leakage from the absorption device may cause liquid to accumulate at the bottom of the cabinet, so holes are drilled at the position where the bottom of the collection layer is flush with the raised part to prevent water accumulation in the cabinet. Considering that the absorption liquid in the absorption device needs to be irrigated into the soil, a water outlet hole is arranged at the middle position of the bottom of the collection layer, and the absorption liquid is irrigated into the soil through the water outlet hole by a water pump. This device is applied in rural field areas. For the purpose of waterproofing and anti-corrosion of the cabinet, the cabinet structure is made of stainless steel material. To clearly observe the experimental phenomena, the single-opening door on the front of the cabinet is made of transparent acrylic material. The combination of the photovoltaic panel and the nitrogen-fixing cabinet not only provides clean energy for the production of nitrogen fertilizer, but also reduces the occupation of arable land area.

Claims

1. A photovoltaic plasma nitrogen fertilizer production equipment cabinet, which includes a shell, characterized in that The outer shell is a six-sided right-angled trapezoidal structure consisting of a front rectangular parallelepiped shell and an inclined rear panel. A plurality of photovoltaic panels (22) are fixedly mounted on the rear panel. The front panel of the outer shell is a cabinet door (18). An upper partition (23) and a lower partition (24) are arranged inside the outer shell to divide the inner space of the outer shell into three layers: an upper layer, a middle layer and a lower layer. The upper layer is a power supply layer, the middle layer is a reaction layer, and the lower layer is a collection layer. A lower card slot (13) is arranged below the lower partition in the outer shell, and an upper card slot (3) and a middle card slot (12) are arranged below the upper partition (23).

2. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that An upper transverse cable groove is provided between the upper partition (23) and the upper slot (3), an intermediate transverse cable groove is provided between the upper slot (3) and the intermediate slot (12), and a lower transverse cable groove is provided between the lower partition (24) and the lower slot (13). The upper transverse cable groove, the intermediate cable groove and the lower transverse cable groove are all fixedly connected to the left and right side panels.

3. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1 or 2, characterized in that The upper card slot (3) is equipped with an air switch (4), a terminal block and a PLC controller (11), the middle card slot (12) is equipped with a button box (5) and an intermediate relay (14), and the lower card slot (13) is equipped with an AC contactor (8), a water pump (9), a terminal block and an air pump (16).

4. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that The top plate of the shell is a backward inclined structure.

5. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that An inverter (20), a photovoltaic controller (21), and a 24V switching power supply (1) are placed on the upper partition (23), and a sliding arc plasma reaction chamber (6), a plasma power supply (7), and an air bag (15) are placed on the lower partition (24).

6. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that The rear panel of the housing is hollow, and a photovoltaic panel fixing bracket (2) for fixing the photovoltaic panel (22) is welded in the middle of the rear panel. Three photovoltaic panels (22) are placed on the left and right sides of the rear panel respectively. The three photovoltaic panels (22) on each side are connected in parallel by wires. The positive poles of the photovoltaic panels (22) are connected together, and the negative poles are connected together. A wire is led out from each of the positive and negative poles to connect to the photovoltaic controller (21).

7. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that A water outlet hole (26) and a drainage hole (27) are provided at the lower part of the two side panels of the shell.

8. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1 or 5, characterized in that The upper partition (23) and the lower partition (24) are mounted on the left and right side panels in the housing. The upper partition (23) and the lower partition (24) can be fixedly welded or screwed to the side panels.

9. A photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that A battery support (25) is installed on the inner bottom plate of the shell, the photovoltaic battery (17) is placed on the battery support (25), and an absorption device (10) is placed on the inner bottom plate of the shell.

10. The photovoltaic plasma nitrogen fertilizer production equipment cabinet according to claim 1, characterized in that The angle between the rear panel and the ground is 50°.

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