CN105413907B - Injection device - Google Patents

Abstract

The utility model provides an injection apparatus, injection apparatus's both ends opening mainly comprises cavity spout, pressurization storehouse and kuppe concatenate. According to the invention, by utilizing the venturi principle, negative pressure is formed in the cavity of the first throat pipe and the second throat pipe under the action of high-speed airflow to generate a siphoning phenomenon, water is sucked into the first throat pipe and the second throat pipe from the first water spray nozzle, the second water spray nozzle and the third water spray nozzle, and the sucked water is atomized under the impact of the high-speed airflow to form uniform and fine water mist to be sprayed out from the nozzles, so that the requirements on water pressure and the reliability on a water pump are reduced, and the energy consumption is reduced.

Description

a jetting device

technical field

The invention relates to a spraying device used on a water mist spraying machine, in particular to a spraying device capable of spraying four layers of fine water mist.

Background technique

In daily work, in order to suppress dust or spray or spray medicine, sprinklers or sprayers are used to spray water injection or water mist. Spraying water is too wasteful and will have a strong impact, which will have a serious impact on the ground and vegetation. Therefore, the method of spraying water mist is more economical and environmentally friendly.

In the patent application document with the application number 201110257082.4, a double-ring atomization environmental protection dust removal air-supply sprayer is disclosed, which realizes long-distance spraying of water mist. The disadvantage is that the spraying is realized by a high-pressure water pump, so the energy consumption is high. Moreover, the degree of atomization depends on the performance and arrangement of the nozzles.

Therefore, it is necessary to find a water mist spraying device that can not only realize long-distance spraying, but also has low energy consumption, low requirements on water pressure, and stable atomization effect.

Contents of the invention

The object of the present invention is to provide a water mist spraying device capable of long-distance spraying, low energy consumption, low water pressure requirements and stable atomization effect.

The technical solution of the present invention is: a spraying device. The spraying device 1 is open at both ends, and is mainly composed of a hollow nozzle 11, a pressurized chamber 12 and a diversion cover 13 connected in series. The nozzle 11 is provided with a first throat. Pipe 14, the first throat is provided with a second throat 15, the first throat 14 and the second throat 15 are connected by a support frame 151; the nozzle 11, the first throat 14, and the second throat 15 are the same shaft; the outer wall of the first throat 14 is provided with a first annular water tank 141 surrounding the first throat, and the first annular water tank 141 communicates with the water delivery pipe 6; the first water spray is provided on the first throat wall mouth 142, the first water spray port 142 communicates with the first annular water tank 141, so that the water in the first annular water tank 141 can be sprayed to the space between the first throat and the second throat through the first water spray port 142 space; the wall of the second throat 15 is provided with a second annular water tank 152, and the second throat is provided with a second water spray opening facing the space between the first throat and the second throat 153 and the opening towards the third nozzle 154 of the inner space of the second throat; the second nozzle 153 and the third nozzle 154 communicate with the second annular tank 152; the support frame 151 is A cylindrical hollow tube, one end communicates with the first annular water tank 141, and the other end communicates with the second annular water tank 152; the water pump 5 is connected with the water tank through the water pipe, and after the water is pressurized by the water pump 5, it is sent to the first water tank through the water delivery pipe 6. The annular water tank 141, a part of water in the first annular water tank 141 enters the second annular water tank 152 through the support frame 151; the water in the first annular water tank 141 is sprayed to the first throat from the first water spray port and the space between the second throat to form the first heavy water mist; the water in the second annular water tank 152 is sprayed to the space between the first throat and the second throat through the second water nozzle 153 to form the first The secondary water mist is sprayed to the space in the second throat through the third water spray port 154 to form the third heavy water mist.

The pressurized chamber 12 is provided with a fan 121 , the air inlet end of the fan 121 faces the shroud 13 , and the air outlet end faces the nozzle 11 .

The support frame 151 is provided with a fourth water spray port 155 .

The cross-section of the first throat is a hyperbolic structure with a small middle and large ends.

The spraying device is fixed on the platform 3 through the supporting device, and the spraying device adjusts the spraying angle through the supporting device; the platform 3 is fixed on the base 4 through the rotating mechanism 2, and the platform 3 rotates horizontally on the base 4 through the rotating mechanism 2 .

The supporting device is mainly composed of bracket 16, a pair of fixed rings 17, a pair of support frames 18, and a hydraulic rod 19, and a hydraulic pump. The hydraulic pump is connected to the hydraulic rod through a hydraulic pipe, and the hydraulic pump is placed on the platform; The above-mentioned bracket 16 includes two parallel fixed frames, and two parallel arc-shaped connecting bars connecting the ends of the two fixed frames.

A pair of fixing rings 17 are set on the front and rear ends of the pressurized chamber 12. On the two sides of the pressurized chamber 12, a pair of fixing rings 17 are respectively fixed on the two ends of the fixing frame of the bracket 16. The fixing frame is close to the shroud The end of 13 links to each other with an end of support frame 18, forms flexible connection; Fixed frame is positioned at the central axis below of pressurized chamber, makes two connecting strips of bracket 16 be positioned at the bottom wall of pressurized chamber 12 below; The other end is fixed on the platform. When the platform 3 rotates horizontally on the base 4 through the rotating mechanism 2, the horizontal rotation of the injection device is realized; the connecting bar of the bracket 16 is connected with one end of the hydraulic rod 19 to form a movable connection. The other end of the hydraulic rod 19 is fixed on the platform 3; under the action of the hydraulic rod 19, the injection device rotates up and down with the connecting position of the support frame 18 and the bracket 16 as the axis.

The cross-section of the second throat 15 is olive-shaped.

Beneficial effect:

1. Using the Venturi tube principle, the first throat and the second throat form a negative pressure in the cavity under the action of high-speed airflow,

A siphon phenomenon is generated to draw water from the first water jet, the second water jet and the third water jet into the first throat and the second throat

The inhaled water is atomized under the impact of high-speed airflow, forming a uniform and fine water mist sprayed from the nozzle, reducing the

The requirements for water pressure and the trust of water pumps are reduced, and energy consumption is reduced.

Description of drawings

Fig. 1 is a front view partial sectional schematic diagram of the present invention;

Fig. 2 is a left view appearance schematic diagram of the present invention;

Fig. 3 is the schematic view of the appearance of the right side view of the present invention;

Fig. 4 is a partial cross-sectional schematic view of the spout of the present invention facing upwards;

5 is a schematic cross-sectional view of a first throat and a second throat of the present invention;

6 is a schematic cross-sectional view of the first throat of the present invention;

7 is a schematic cross-sectional view of a second throat of the present invention;

Fig. 8 is a schematic view of the appearance of the second throat of the present invention.

detailed description

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the water mist sprayer is mainly composed of a spraying device, a supporting device, a controller 1, a rotating mechanism 2, a platform 3, a base 4, a water pump 5, and a water delivery pipe 6. Described water pump 5 is auxiliary equipment, and its main function is to guarantee water supply to water supply pipe 6.

The two ends of the injection device are open, mainly composed of a hollow nozzle 11, a pressurized chamber 12 and a shroud 13 connected in series. The nozzle 11 is provided with a first throat 14, and the first throat is provided with a second throat. 15. The first throat pipe 14 and the second throat pipe 15 are connected through a support frame 151; the nozzle 11, the first throat pipe 14, and the second throat pipe 15 are coaxial.

As shown in Figures 5 and 6, the section of the first throat is a hyperbolic structure with a small middle and large ends, so that a curved cone can be formed at the inlet end, which is conducive to the introduction of airflow, and makes the middle The diameter of the channel is reduced to facilitate the acceleration of the airflow, and the accelerated airflow will reduce the pressure at this position to form a negative pressure and produce a siphon phenomenon, and water will be sucked from the first water nozzle 142 on the wall of the first throat pipe; In specific implementation, the first water spray port 142 can also be changed into a narrow gap surrounding the inner wall of the first throat and communicating with the first annular water tank.

The inhaled water is atomized under the impact of high-speed airflow to form fine water mist. The outlet end of the first throat is an excessively smooth diffuser, which makes the air flow and water mist flow smoothly, and forms a buffer zone between the first throat and the outlet end of the nozzle 11. Under the restriction of the nozzle 11, Then concentrate the spray, so that the airflow mixed with water mist can be sprayed farther.

The two ends of the first throat are fixed on the inner wall of the nozzle 11, forming a closed space between the nozzle 11 and the first throat 14; the section of the second throat 15 is olive-shaped; in the first throat 14 The outer wall of the outer wall is provided with a first annular water tank 141 surrounding the first throat, and the first annular water tank 141 communicates with the water delivery pipe 6; a first water spray port 142 is provided on the first throat pipe wall, and the first water spray port 142 communicates with the first annular water tank 141 , so that the water in the first annular water tank 141 can be sprayed to the space between the first throat and the second throat through the first water spray port 142 .

As shown in Fig. 7 and Fig. 8, the section of the second throat 15 is olive-shaped, the diameter of the outlet end of the second throat 15 is larger than the diameter of the inlet end, and the diameter of the inlet end is larger than the minimum diameter of the inner hole of the second throat.

The second throat 15 is provided with a second annular water tank 152, and the second throat is provided with a second water jet 153 and an opening facing the space between the first throat and the second throat. The third water spray port 154 facing the inner space of the second throat; the second water spray port 153 and the third water spray port 154 communicate with the second annular water tank 152; the support frame 151 is columnar and hollow One end of the pipe communicates with the first annular water tank 141 , and the other end communicates with the second annular water tank 152 .

The second throat adopts an olive-shaped structure, so that an air flow channel with a narrowed middle part and enlarged ends is formed between the first throat and the second throat. At the narrowest part of the airflow channel, a negative pressure is generated, thereby generating a siphon, and water is sucked into the airflow channel from the first water spray port 142 and the second water spray port 153 to generate atomization. Similarly, an airflow channel with narrowing in the middle and expanding at both ends will be generated in the second throat, so that water will be inhaled from the third water spray port 154 and atomized, and the fourth water spray port can also be set on the bracket 151 155. This structure can make full use of the airflow channel space to expand the contact surface between water and airflow, and generate more negative pressure areas to inhale more water and generate denser water mist. In specific implementation, the second water spray port 153 and the third water spray port 154 can also be changed into a narrow gap.

The first annular water tank 141 and the second annular water tank 152 are located in the same section.

The first water spray port 142 , the second water spray port 153 and the third water spray port 154 are located in the same section.

The pressurized chamber 12 is provided with a fan 121, the air inlet end of the fan 121 faces the wind deflector 13, and the air outlet end faces the nozzle 11; the supporting device mainly consists of a bracket 16, a pair of fixed rings 17, and a pair of support frames. 18. Composed of hydraulic rod 19 and hydraulic pump, the hydraulic pump is connected to the hydraulic rod through the hydraulic pipe, and the hydraulic pump is placed on the platform; the bracket 16 includes two parallel fixed frames, and the ends of the two fixed frames are connected Two arc-shaped connecting bars parallel to each other; the spraying device is fixed on the platform 3 through the supporting device, and the spraying device adjusts the spraying angle through the supporting device; the platform 3 is fixed on the base 4 through the rotating mechanism 2, and the platform 3 rotates The mechanism 2 rotates in the horizontal direction on the base 4 .

The water pump 5 is connected to the water tank through a water pipe. After the water is pressurized by the water pump 5, it is sent to the first annular water tank 141 through the water delivery pipe 6, and a part of the water in the first annular water tank 141 enters the second annular water tank through the support frame 151. 152; the water in the first annular water tank 141 is sprayed from the first water nozzle 142 to the space between the first throat and the second throat to form the first heavy water mist; the water in the second annular water tank 152 Spray to the space between the first throat and the second throat through the second water spray port 153 to form the second heavy water mist, and spray to the space in the second throat through the third water spray port 154 to form the third heavy water mist; The above-mentioned triple water mist is sprayed outward from the nozzle 11 under the action of the fan 121 .

The opening of the second water spray port 153 is close to the position where the diameter of the outer wall of the second throat is the largest;

The opening of the third water spray port 154 is close to the position where the diameter of the channel on the inner wall of the second throat is the smallest.

The opening of the first water spray port 142 is close to the position with the smallest channel diameter on the inner wall of the first throat.

The first water spray port 142 is a slit on the inner wall of the first throat and surrounds the first throat.

The second water spray port 153 is a slit around the second throat arranged on the outer wall of the second throat.

The third water spout 154 is a slit on the inner wall of the second throat and surrounds the second throat.

The support frame 151 is provided with a fourth water spray port 155 .

The supporting device is mainly composed of bracket 16, a pair of fixed rings 17, a pair of support frames 18, and a hydraulic rod 19, a hydraulic pump, the hydraulic pump is connected to the hydraulic rod through a hydraulic pipe, and the hydraulic pump is placed on the platform; The above-mentioned bracket 16 includes two parallel fixed frames, and two parallel arc-shaped connecting bars connecting the ends of the two fixed frames.

The spraying device is fixed on the platform 3 through the supporting device, and the spraying device adjusts the spraying angle through the supporting device.

A pair of fixing rings 17 are set on the front and rear ends of the pressurized chamber 12. On the two sides of the pressurized chamber 12, a pair of fixing rings 17 are respectively fixed on the two ends of the fixing frame of the bracket 16. The fixing frame is close to the shroud The end of 13 links to each other with an end of support frame 18, forms flexible connection; Fixed frame is positioned at the central axis below of pressurized chamber, makes two connecting strips of bracket 16 be positioned at the bottom wall of pressurized chamber 12 below; The other end is fixed on the platform. When the platform 3 rotates horizontally on the base 4 through the rotating mechanism 2, the horizontal rotation of the injection device is realized; the connecting bar of the bracket 16 is connected with one end of the hydraulic rod 19 to form a movable connection. The other end of the hydraulic rod 19 is fixed on the platform 3; under the action of the hydraulic rod 19, the injection device rotates up and down with the connecting position of the support frame 18 and the bracket 16 as the axis.

When the water mist sprayer of the present invention is used to produce an artificial rainbow, the controller should also include a sun track tracking device. When the sun track tracking device detects that the sun angle is offset, the angle of the sun offset is fed back to the controller to control The controller keeps the angle between the nozzle of the injection device and the sun's rays within a set range by controlling the supporting device and the rotating mechanism.

The solar trajectory tracking device is mainly composed of a light sensor and supporting circuits.

The light sensor is a photosensitive diode or triode.

In addition to being used for spraying water mist, the present invention can also be used for spraying other fluid substances such as oil mist and gas mist.

In the second throat of the present invention, a plurality of throats having the same structure as the second throat can also be provided as required, and all the throats are coaxial.

The above-mentioned embodiments are only used to illustrate and explain the purpose of the present invention, rather than to limit the present invention. Those of ordinary skill in the art may make various changes or substitutions within the essential scope of the present invention, which shall also belong to the present invention. scope of protection for inventions.

Claims (5)

1. A spraying device, characterized in that: the two ends of the spraying device (1) are open, and are mainly composed of a hollow spout (11), a pressurized chamber (12) and a shroud (13) connected in series, and the spout (11) is provided with a first throat (14), the first throat is provided with a second throat (15), the first throat (14) and the second throat (15) are connected by a support frame (151) ; The spout (11), the first throat (14), and the second throat (15) are coaxial; the outer wall of the first throat (14) is provided with a first annular water tank surrounding the first throat (141), the first annular water tank (141) is communicated with the water delivery pipe (6); the first water spout (142) is arranged on the first throat wall, and the first water spout (142) is connected with the first ring shaped water tank (141), so that the water in the first annular water tank (141) can be sprayed to the space between the first throat and the second throat through the first water nozzle (142); A second annular water tank (152) is provided on the wall of the throat (15), and a second water jet (153) opening toward the space between the first throat and the second throat is provided on the second throat And opening towards the third water jet (154) in the inner space of the second throat; the second water jet (153) and the third water jet (154) communicate with the second annular water tank (152); The support frame (151) is a columnar hollow tube, one end communicates with the first annular water tank (141), and the other end communicates with the second annular water tank (152); the water pump (5) is connected with the water tank through a water pipe, and the water After being pressurized by the water pump (5), it is sent to the first annular water tank (141) through the water delivery pipe (6), and part of the water in the first annular water tank (141) enters the second annular water tank (151) through the support frame (151). Water tank (152); the water in the first annular water tank (141) is sprayed to the space between the first throat and the second throat from the first water nozzle (142), forming the first heavy water mist; the second The water in the annular water tank (152) is sprayed to the space between the first throat and the second throat through the second water spray port (153) to form the second heavy water mist, and sprayed to the space through the third water spray port (154). The space in the second throat forms the third heavy water mist; the section of the first throat is a hyperbolic structure with small middle ends and large ends, and the two ends of the first throat are fixed on the inner wall of the spout (11). ) and the first throat (14) to form a closed space; the section of the second throat (15) is olive-shaped; The air inlet end is towards the wind deflector (13), and the air outlet end is towards the spout (11). 2. The spraying device according to claim 1, characterized in that: the support frame (151) is provided with a fourth water spray port (155). 3. spray device according to claim 1, is characterized in that: described spray device is fixed on the platform (3) by support device, and spray device adjusts spray angle by support device; Platform (3) is passed rotation mechanism (2) ) is fixed on the base (4), and the platform (3) rotates horizontally on the base (4) through the rotating mechanism (2). 4. The injection device according to claim 3, characterized in that: the supporting device mainly consists of bracket (16), a pair of fixed rings (17), a pair of support frames (18), and hydraulic rods (19 ), a hydraulic pump, the hydraulic pump is connected to the hydraulic rod through the hydraulic pipe, and the hydraulic pump is placed on the platform; the bracket (16) includes two parallel fixed frames, and two Arc-shaped connecting bars parallel to each other. 5. The injection device according to claim 4, characterized in that: a pair of fixed rings (17) are sleeved at the front and rear ends of the pressurized chamber (12), and on the two sides of the pressurized chamber (12), a pair of Fixing ring (17) is respectively fixed on the two ends of the fixing frame of bracket (16), and fixing frame links to each other with an end of bracing frame (18) near the end of shroud (13), forms movable connection; Below the central axis of the pressure chamber, the two connecting bars of the bracket (16) are located below the bottom wall of the pressurized chamber (12); the other end of the support frame (18) is fixed on the platform, when the platform (3) rotates The mechanism (2) rotates in the horizontal direction on the base (4), realizing the horizontal rotation of the injection device; the connecting bar of the bracket (16) is connected with one end of the hydraulic rod (19) to form a movable connection, and the hydraulic rod (19) ) is fixed on the platform (3); under the action of the hydraulic rod (19), the injection device rotates up and down with the connection position of the support frame (18) and the bracket (16) as the axis.