CN207531343U - Wheat liquid manure one spray irrigation system - Google Patents

Abstract

The utility model relates to the field of agricultural irrigation, in particular to a wheat water and fertilizer integrated sprinkler irrigation system. The wheat water and fertilizer integrated sprinkler irrigation system includes a water storage tank, a fertilizer tank, a pretreatment tank, a mixing tank, a sprinkler head and a control device. The pretreatment tank has an air pump and a conduit extending in a conical spiral; the conduit has opposite first and second ends, the first end is located at the bottom of the conical spiral, and the second end is near the top of the conical spiral; the outlet of the air pump communicate with the first end of the conduit. The fertilizer tank is connected to the first end of the pretreatment tank through the first pipeline, the second end of the pretreatment tank is connected to the mixing tank through the second pipeline, the water storage tank is connected to the mixing tank through the third pipeline, and the mixing tank is connected to the mixing tank through the second pipeline. The four pipelines are connected with the sprinkler head, and the water storage tank is connected with the sprinkler head through the fifth pipeline. The control device is respectively electrically connected with the water storage tank, the fertilizer tank, the pretreatment tank, the mixing tank and the sprinkler head. In this way, the problem of poor use effect in the prior art is significantly improved.

Description

Water and fertilizer integrated sprinkler irrigation system for wheat

technical field

The utility model relates to the field of agricultural irrigation, in particular to a wheat water and fertilizer integrated sprinkler irrigation system.

Background technique

In the process of wheat irrigation in upland fields, the content and concentration of water and fertilizer are key parameters, which are of great significance to the growth of wheat. The characteristics of wheat plants make wheat more suitable for irrigation such as spraying.

However, in the prior art, when the wheat is sprinkled with water and fertilizer, the shortcomings of uneven fertilizer mixing and single sprinkler irrigation method often occur.

Utility model content

The purpose of this utility model is to provide a wheat water and fertilizer integrated sprinkler irrigation system, which can efficiently and quickly complete the task of sprinkler irrigation, and such a wheat water and fertilizer integrated sprinkler irrigation system is simple in structure and easy to operate, and can significantly improve the fertilizer mixing in the prior art. It has the disadvantage of unevenness, and is easy to manufacture, which is conducive to large-scale assembly line production.

Embodiments of the utility model are achieved in that:

Water and fertilizer integrated sprinkler irrigation system for wheat, which includes water storage tank, fertilizer tank, pretreatment tank, mixing tank, sprinkler head and control device;

The pretreatment tank has an air pump and a conduit extending in the shape of a conical spiral; the conduit has opposite first and second ends, the first end is located at the bottom of the conical spiral, and the second end is close to the top of the conical spiral cone; the outlet of the air pump communicating with the first end of the conduit;

The fertilizer tank is connected to the first end of the pretreatment tank through the first pipeline, the second end of the pretreatment tank is connected to the mixing tank through the second pipeline, the water storage tank is connected to the mixing tank through the third pipeline, and the mixing tank is connected to the mixing tank through the second pipeline. The fourth pipeline is connected to the sprinkler head, and the water storage tank is connected to the sprinkler head through the fifth pipeline;

The control device is respectively electrically connected with the water storage tank, the fertilizer tank, the pretreatment tank, the mixing tank and the sprinkler head.

Wheat is the general designation of wheat plants, is a monocotyledonous plant, is a kind of gramineous plant widely planted all over the world, and the caryopsis of wheat is one of the staple foods of human beings. Wheat is one of the three major grains and is used almost entirely for food. China is one of the first countries in the world to grow wheat. The soil layer is deep and the structure is good. The plow layer is deep, which is conducive to water storage and fertilizer conservation, and promotes root development. Soil structure refers to the composition ratio of solid (organic and inorganic), liquid and gas. It is closely related to soil moisture, air, temperature and nutrients. Soil structure is directly related to the quality and yield of wheat production. Wheat long-day crops (8 to 12 hours of light per day), if sunny conditions are insufficient. Just can't pass the light stage, can't head and set fruit.

It is precisely because of this that good water and nutrients are crucial to wheat production. Sprinkler irrigation technology has the characteristics of wide coverage and excellent water and fertilizer effects, and is widely used in wheat planting irrigation. However, in the sprinkler irrigation process of the prior art, the fertilizer mixing effect of the sprinkler irrigation is often not good, and the nutrient supply of the wheat is not good at that time, thereby affecting the quality of the wheat. The inventor found that the reason why the fertilizer mixing effect is not good is that the fertilizer particles are not uniform. When water and fertilizer are mixed, some fertilizer particles cannot be well diffused into the water, resulting in uneven water and fertilizer, which in turn affects the effect of sprinkler irrigation. .

Accordingly, the inventor invented a new wheat water and fertilizer integrated sprinkler irrigation system. The fertilizer in the fertilizer tank of the wheat water and fertilizer integrated sprinkler irrigation system will be processed in the pretreatment tank and then mixed in the mixing tank for water and fertilizer configuration. Further, the pretreatment tank is provided with an air pump and a conduit extending in a conical spiral shape; the conduit has opposite first and second ends, the first end is located at the bottom of the conical spiral, and the second end is close to the top of the conical spiral; The outlet of the pump communicates with the first end of the conduit. When in use, the fertilizer tank is connected to the first end of the pretreatment tank through the first pipeline, the second end of the pretreatment tank is connected to the mixing tank through the second pipeline, and the water storage tank is connected to the mixing tank through the third pipeline. The tank is connected to the sprinkler head through a fourth pipeline. When the fertilizer particles in the fertilizer tank pass through the conical helical conduit, under the action of the air pump, the fertilizer particles will be damaged by impact on the inner wall of the conduit. As the fertilizer particles move along the conduit, the area of the spiral surface of the conduit becomes smaller and smaller, and the particles It is compressed/squeezed more intensely, so that the fertilizer particles are more crushed into small particles, and the fertilizer that is completely crushed into small particles is sent into the mixing tank and mixed with the water flow from the storage tank to become the water and fertilizer that meets the preset requirements for spray irrigation plants and soil. At the same time, the control device can precisely control the concentration of water and fertilizer.

In summary, such a wheat water and fertilizer integrated sprinkler irrigation system has a simple structure and is easy to operate, can obviously improve the quality of water and fertilizer when spraying, and is easy to manufacture, which is beneficial to large-scale assembly line production.

In one embodiment of the present utility model:

The above-mentioned sprinkler head includes a pipe body and a processing unit; the pipe body is a pipe body extending in a spiral shape, one end in the length direction of the pipe body is closed, and the other end in the length direction of the pipe body is provided with an opening; the processing unit is arranged through the pipe body for outward On the side wall, the processing unit is equipped with a plurality of water spray ports with preset diameters.

In one embodiment of the present utility model:

The above-mentioned processing unit is a grid composed of a plurality of grid bars, and adjacent grid bars are enclosed to form water spouts.

In one embodiment of the present utility model:

The pipe body of the above-mentioned sprinkler head is a cylindrical spiral.

In one embodiment of the present utility model:

The above-mentioned sprinkler head also includes a bracket arranged on the ground, and the bracket is threadedly connected with the pipe body through a screw.

In one embodiment of the present utility model:

A knob is provided at the end of the screw rod away from the pipe body and the bracket.

In one embodiment of the present utility model:

Lock nuts are also arranged on the above-mentioned bracket.

In one embodiment of the present utility model:

The above-mentioned wheat water and fertilizer integrated sprinkler irrigation system also includes a heating device;

The heating device is arranged on the third pipeline, and the heating device is connected with the control device.

In one embodiment of the present utility model:

The above-mentioned wheat water and fertilizer integrated sprinkler irrigation system also includes a temperature sensor and a humidity sensor;

Both the temperature sensor and the humidity sensor are connected with the control device.

In one embodiment of the present utility model:

The above-mentioned wheat water and fertilizer integrated sprinkler irrigation system also includes an oxygen supply device;

The oxygen supply device is arranged on the third pipeline, and the oxygen supply device is connected with the control device.

The beneficial effects of the utility model embodiment are:

The wheat water and fertilizer integrated sprinkler irrigation system includes a water storage tank, a fertilizer tank, a pretreatment tank, a mixing tank, a sprinkler head and a control device. When in use, the fertilizer tank is connected to the first end of the pretreatment tank through the first pipeline, the second end of the pretreatment tank is connected to the mixing tank through the second pipeline, and the water storage tank is connected to the mixing tank through the third pipeline. The tank is connected to the sprinkler head through a fourth pipeline. When the fertilizer particles in the fertilizer tank pass through the conical helical conduit, under the action of the air pump, the fertilizer particles will be damaged by impact on the inner wall of the conduit. As the fertilizer particles move along the conduit, the area of the spiral surface of the conduit becomes smaller and smaller, and the particles It is compressed/squeezed more intensely, so that the fertilizer particles are more crushed into small particles, and the fertilizer that is completely crushed into small particles is sent into the mixing tank and mixed with the water flow from the storage tank to become the water and fertilizer that meets the preset requirements for spray irrigation plants and soil. Such a wheat water and fertilizer integrated sprinkler irrigation system has a simple structure and is easy to operate, and can significantly improve the problem of uneven fertilizer mixing in the prior art.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the structural representation of a kind of wheat water and fertilizer integrated sprinkler irrigation system that the utility model embodiment provides;

Fig. 2 is the structural representation of the pretreatment tank of Fig. 1;

Fig. 3 is a schematic structural view of the sprinkler head in Fig. 1;

FIG. 4 is a partial schematic diagram of FIG. 3 .

Icon: 10-wheat water and fertilizer integrated sprinkler irrigation system; 100-reservoir; 200-fertilizer tank; 300-pretreatment tank; 310-air pump; 320-duct; 400-mixing tank; 500-sprinkler head; 510-tube body; 520-processing unit; 521-spray outlet; 530-bracket; 540-screw; 600-control device; 710-first pipeline; 720-second pipeline; 730-third pipeline; 740-fourth pipe 750-fifth pipeline; 810-heating device; 820-oxygen supply device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In addition, the appearance of the terms "horizontal", "vertical", "overhanging" etc. does not mean that the parts are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, if the terms "setting", "installation", "connection" and "connection" appear, they should be understood in a broad sense, for example, it can be A fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Example

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a wheat water and fertilizer integrated sprinkler irrigation system 10 provided by an embodiment of the present invention. FIG. 2 is a schematic structural diagram of the pretreatment tank 300 in FIG. 1 . It can be seen from FIG. 1 and FIG. 2 that a wheat water and fertilizer integrated sprinkler irrigation system 10 includes a water storage tank 100 , a fertilizer tank 200 , a pretreatment tank 300 , a mixing tank 400 , a sprinkler head 500 and a control device 600 .

The pretreatment tank 300 has an air pump 310 and a conduit 320 extending in a conical spiral shape; the conduit 320 has opposite first and second ends, the first end is located at the bottom surface of the conical spiral, and the second end is near the top of the conical spiral; The outlet of the air pump 310 communicates with the first end of the conduit 320 .

The fertilizer tank 200 is connected to the first end of the pretreatment tank 300 through the first pipeline 710, the second end of the pretreatment tank 300 is connected to the mixing tank 400 through the second pipeline 720, and the water storage tank 100 is connected to the mixing tank 400 through the third pipeline 730. The mixing tank 400 is connected, the mixing tank 400 is connected to the sprinkler head 500 through the fourth pipeline 740 , and the water storage tank 100 is connected to the sprinkler head 500 through the fifth pipeline 750 .

The control device 600 is electrically connected with the water storage tank 100, the fertilizer tank 200, the pretreatment tank 300, the mixing tank 400 and the sprinkler head 500 respectively.

Wheat is the general designation of wheat plants, is a monocotyledonous plant, is a kind of gramineous plant widely planted all over the world, and the caryopsis of wheat is one of the staple foods of human beings. Wheat is one of the three major grains and is used almost entirely for food. China is one of the first countries in the world to grow wheat. The soil layer is deep and the structure is good. The plow layer is deep, which is conducive to water storage and fertilizer conservation, and promotes root development. Soil structure refers to the composition ratio of solid (organic and inorganic), liquid and gas. It is closely related to soil moisture, air, temperature and nutrients. Soil structure is directly related to the quality and yield of wheat production. Wheat long-day crops (8 to 12 hours of light per day), if sunny conditions are insufficient. Just can't pass the light stage, can't head and set fruit.

It is precisely because of this that good water and nutrients are crucial to wheat production. Sprinkler irrigation technology has the characteristics of wide coverage and excellent water and fertilizer effects, and is widely used in wheat planting irrigation. However, in the sprinkler irrigation process of the prior art, the fertilizer mixing effect of the sprinkler irrigation is often not good, and the nutrient supply of the wheat is not good at that time, thereby affecting the quality of the wheat. The inventor found that the reason why the fertilizer mixing effect is not good is that the fertilizer particles are not uniform. When water and fertilizer are mixed, some fertilizer particles cannot be well diffused into the water, resulting in uneven water and fertilizer, which in turn affects the effect of sprinkler irrigation. .

Accordingly, the inventor invented a new wheat water and fertilizer integrated sprinkler irrigation system 10. The fertilizer in the fertilizer tank 200 of the wheat water and fertilizer integrated sprinkler irrigation system 10 will be processed in the pretreatment tank 300 and then mixed in the mixing tank 400 for water and fertilizer configuration. Further, the pretreatment tank 300 is equipped with an air pump 310 and a conical helical conduit 320 extending; the conduit 320 has opposite first and second ends, the first end is located at the bottom surface of the conical helix, and the second end is close to the conical helical cone top position; the outlet of the air pump 310 communicates with the first end of the conduit 320 . During use, the fertilizer tank 200 is connected to the first end of the pretreatment tank 300 through the first pipeline 710, the second end of the pretreatment tank 300 is connected to the mixing tank 400 through the second pipeline 720, and the water storage tank 100 is connected to the mixing tank 400 through the third pipe. The road 730 is connected to the mixing tank 400 , and the mixing tank 400 is connected to the sprinkler head 500 through the fourth pipeline 740 . When the fertilizer granules in the fertilizer tank pass through the conical helical duct 320, under the action of the air pump 310, the fertilizer granules will collide with the inner wall of the duct 320 and be damaged. As the fertilizer granules move along the duct 320, the helical area of the duct 320 will increase The particles become smaller and smaller, and the particles are compressed/squeezed more intensely, so that the fertilizer particles are more crushed into small particles, and the fertilizers that are completely crushed into small particles are sent into the mixing tank 400 and mixed with the water flow from the water storage tank 100 to achieve a preset value. The required water and fertilizer are used to irrigate plants and soil. At the same time, the control device 600 can precisely control the concentration of water and fertilizer.

Sprinkler irrigation is highly adaptable to various terrains. It does not need to level the land like ground irrigation. Sprinkler irrigation can be performed on slopes and undulating ground. Especially in sandy soil with thin soil layer and strong water permeability, it is very suitable for sprinkler irrigation. Because sprinkler irrigation can control the amount and uniformity of sprayed water, avoid ground runoff and deep seepage loss, and greatly improve the utilization rate of water.

Further, in this embodiment of the utility model, the sprinkler head 500 is a micro sprinkler head 500 .

Compared with general sprinkler irrigation, micro-spray cans can better complete irrigation, and the sprayed fluid part is atomized, which can linger around the plants for a longer period of time, causing less water droplet pits on the soil surface, and is conducive to Absorption of water and fertilizer by plant leaves.

FIG. 3 is a schematic structural diagram of the sprinkler head 500 in FIG. 1 .

Please refer to Fig. 1-Fig. 3, in the present embodiment of the utility model, above-mentioned irrigation head 500 comprises pipe body 510 and processing unit 520; Closed, the other end in the length direction of the tube body 510 has an opening; the processing unit 520 is disposed through the outward side wall of the tube body 510 , and the processing unit 520 has a plurality of water spray ports 521 with preset diameters.

The spirally extending pipe body 510 facilitates uniform fluid spraying around the pipe body 510 . Compared with the rotating sprinkler head 500 , such an arrangement saves energy and has a better use effect.

FIG. 4 is a partial schematic diagram of FIG. 3 .

Please refer to FIG. 1-FIG. 4 , further, the above-mentioned processing unit 520 is a grid composed of a plurality of grid bars, and adjacent grid bars are surrounded to form a water spray port 521 .

The grid has the characteristics of simple structure, convenient processing, and durability. It can be understood that, in other embodiments of the present invention, the processing unit 520 may also have other structures.

Optionally, the pipe body 510 of the sprinkler head 500 is a cylindrical spiral. The cylindrical helix makes the structure more stable, and the processing and manufacturing are more convenient.

In this embodiment of the utility model, the sprinkler head 500 also includes a bracket 530 arranged on the ground, and the bracket 530 is screwed to the pipe body 510 through a screw 540 . Further, a knob is provided at the end of the screw rod 540 away from the tube body 510 and the bracket 530 . Optionally, lock nuts are also provided on the bracket 530 .

In this way, the screw 540 can be driven to rotate by turning the knob, so that the sprinkler head 500 can move along the height direction of the bracket 530 to adapt to the growth height of different plants, or the same plant can have different heights in different growth periods, which increases the adaptability of the product. The anti-feed nut also does a good job of securing the sprinkler head 500 in place.

In this embodiment of the present utility model, the above-mentioned wheat water and fertilizer integrated sprinkler irrigation system 10 further includes a heating device 810 ;

The heating device 810 can appropriately increase the warmth of the water flow, ensure that the water and fertilizer are evenly mixed, and prevent the plants from being frostbitten, which can play a role in regulating the microclimate.

Further, the wheat water and fertilizer integrated sprinkler irrigation system 10 also includes a temperature sensor and a humidity sensor; both the temperature sensor and the humidity sensor are connected to the control device 600 .

The temperature sensor and the humidity sensor can monitor the ecological parameters around the plants in time for the regulation of the control device 600 .

In this embodiment of the present utility model, the wheat water and fertilizer integrated sprinkler irrigation system 10 also includes an oxygen supply device 820;

The oxygen supply device 820 can properly increase the oxygen content through the water flow, provide enough oxygen for the growth of the plants, and ensure the good growth of the plants.

During use, the fertilizer tank 200 is connected to the first end of the pretreatment tank 300 through the first pipeline 710, the second end of the pretreatment tank 300 is connected to the mixing tank 400 through the second pipeline 720, and the water storage tank 100 is connected to the mixing tank 400 through the third pipe. The road 730 is connected to the mixing tank 400 , and the mixing tank 400 is connected to the sprinkler head 500 through the fourth pipeline 740 . When the fertilizer granules in the fertilizer tank pass through the conical helical duct 320, under the action of the air pump 310, the fertilizer granules will collide with the inner wall of the duct 320 and be damaged. As the fertilizer granules move along the duct 320, the helical area of the duct 320 will increase The particles become smaller and smaller, and the particles are compressed/squeezed more intensely, so that the fertilizer particles are more crushed into small particles, and the fertilizers that are completely crushed into small particles are sent into the mixing tank 400 and mixed with the water flow from the water storage tank 100 to achieve a preset value. The required water and fertilizer are used to irrigate plants and soil.

Such a wheat water and fertilizer integrated sprinkler irrigation system 10 has a simple structure and is easy to operate, and can significantly improve the problem of uneven fertilizer mixing in the prior art.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A wheat water and fertilizer integrated sprinkler irrigation system is characterized in that: Including water storage tanks, fertilizer tanks, pretreatment tanks, mixing tanks, sprinkler heads and control devices; The pretreatment tank has an air pump and a conduit extending in the shape of a conical spiral; the conduit has opposite first and second ends, the first end is located at the bottom of the conical spiral, and the second end is close to the cone The position of the spiral cone top; the outlet of the air pump communicates with the first end of the conduit; The fertilizer tank is connected to the first end of the pretreatment tank through a first pipeline, the second end of the pretreatment tank is connected to the mixing tank through a second pipeline, and the water storage tank is connected to the mixing tank through a third pipeline. The road is connected to the mixing tank, the mixing tank is connected to the sprinkler head through the fourth pipeline, and the water storage tank is connected to the sprinkler head through the fifth pipeline; The control device is electrically connected with the water storage tank, the fertilizer tank, the pretreatment tank, the mixing tank and the sprinkler head respectively. 2. The wheat water and fertilizer integrated sprinkler irrigation system according to claim 1, characterized in that: The sprinkler head includes a pipe body and a processing unit; the pipe body is a spirally extending pipe body, one end of the length direction of the pipe body is closed, and the other end of the length direction of the pipe body is provided with an opening; the processing unit runs through It is arranged on the outward side wall of the pipe body, and the processing unit is equipped with a plurality of water spray ports with preset diameters. 3. The wheat water and fertilizer integrated sprinkler irrigation system according to claim 2, characterized in that: The processing unit is a grid composed of a plurality of bars, and adjacent bars are enclosed to form the water spout. 4. The wheat water and fertilizer integrated sprinkler irrigation system according to claim 2, characterized in that: The pipe body of the sprinkler head is a cylindrical spiral. 5. The wheat water and fertilizer integrated sprinkler irrigation system according to any one of claims 2-4, characterized in that: The sprinkler head also includes a bracket arranged on the ground, and the bracket is threadedly connected with the pipe body through a screw. 6. The wheat water and fertilizer integrated sprinkler irrigation system according to claim 5, characterized in that: A knob is provided at the end of the screw rod away from the pipe body and the bracket. 7. The wheat water and fertilizer integrated sprinkler irrigation system according to claim 5, characterized in that: Lock nuts are also arranged on the bracket. 8. The wheat water and fertilizer integrated sprinkler irrigation system according to any one of claims 1-4, characterized in that: The wheat water and fertilizer integrated sprinkler irrigation system also includes a heating device; The heating device is arranged on the third pipeline, and the heating device is connected with the control device. 9. The wheat water and fertilizer integrated sprinkler irrigation system according to any one of claims 1-4, characterized in that: The wheat water and fertilizer integrated sprinkler irrigation system also includes a temperature sensor and a humidity sensor; Both the temperature sensor and the humidity sensor are connected with the control device. 10. The wheat water and fertilizer integrated sprinkler irrigation system according to any one of claims 1-4, characterized in that: The wheat water and fertilizer integrated sprinkler irrigation system also includes an oxygen supply device; The oxygen supply device is arranged on the third pipeline, and the oxygen supply device is connected with the control device.