JPH0632930U - Blower - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain an air blower capable of discharging air to a long distance. [Structure] When air flows through the duct pipe 1, the air passage of the air gradually narrows before reaching the throat pipe 3, so that the flow velocity of the air increases. Furthermore, in this throat pipe 3, since compressed air is blown out from each nozzle hole 3b along the flow of air in the throat pipe 3,
The flow velocity of air will increase further. The air having the increased flow velocity is discharged from the opening 2a through the diffuser pipe 2 and reaches far due to the flow velocity.
Further, when passing through the diffuser pipe 2, the air is
Since each electrode 8 is ionized by the discharge, the ionized air reaches far.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a blower device for delivering air, and more particularly to a blower device suitable for ejecting ionized air.

[0002]

[Prior art]

 As is well known, when food or medicine is stored in a room, ionized air may be sent into the room in order to keep the room clean.

Therefore, conventionally, various devices for ionizing air and discharging this air have been provided, but any of these devices can adjust the air flow rate. However, since the flow velocity of the air to be discharged was low, it was not possible to send the air far.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional device, even if the air flow rate can be adjusted, the flow velocity of the air to be discharged is low and the air cannot be sent to a long distance.Therefore, the ionized air is aggressively supplied to every corner of the chamber. Could not be supplied to. Therefore, the supply of air to every corner of the room relied only on the circulation of the air generated in the room, but this alone did not necessarily supply ionized air to every corner of the room.

Therefore, an object of the present invention is to obtain an air blower capable of discharging air to a long distance.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, in the present invention, a throat in which the inner diameter of the ventilation passage is narrowed at the end of the ventilation passage and a throat connected to the throat, and the inner diameter gradually increases from the connection portion to the opening. A diffuser that expands and discharges air from this opening and a nozzle that is formed on the inner peripheral wall surface of the throat and blows air toward the opening of the diffuser are provided, and a discharge electrode is provided on the inner peripheral wall surface of the diffuser. Are installed.

[0007]

[Action]

 According to this invention, since the nozzle that blows air toward the opening of the diffuser is formed on the inner peripheral wall surface of the throat, when air is blown from this nozzle, the air flowing from the throat to the opening of the diffuser is formed. Increase the flow rate of. Therefore, the air discharged from the opening of the diffuser reaches a long distance. Further, since the discharge electrode is arranged on the inner peripheral wall surface of the diffuser, the air flowing inside the diffuser can be ionized by generating the discharge here. Therefore, the ionized air can be delivered far.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view showing an embodiment of an air blower according to the present invention. In the figure, the duct pipe 1 is on the air supply side, and the inner diameter gradually narrows along the way. The outer peripheral wall surface of the duct pipe 1 is formed with a collar 1a and a male screw 1b, and the diffuser pipe 2 is screwed therein until it comes into contact with the collar 1a. A throat pipe 3 is arranged inside the diffuser pipe 2, and the throat pipe 3 is interposed between the duct pipe 1 and the diffuser pipe 2. Further, an O-ring 4 is sandwiched between the duct pipe 1 and the throat pipe 3, and the airtightness between them is maintained. Further, an O-ring 5 is also sandwiched between the throat pipe 3 and the diffuser pipe 2.

The air passage of the throat pipe 3 is smoothly connected to the air passage of the duct pipe 1 on its left side, expands once at its center, and gradually narrows from here to the right end. A plurality of nozzle holes 3b are formed along the circumferential direction in the central portion 3a where the inner diameter of the throat pipe 3 is expanded. A screw hole 6 is formed in the side wall of the diffuser pipe 2, and a mouthpiece of an air supply pipe connected to an air compressor (not shown) is screwed into the screw hole 6. Compressed air from this air compressor is sent through the screw holes 6 to the air chamber 7 formed between the outer peripheral wall surface of the throat pipe 3 and the inner peripheral wall surface of the diffuser pipe 2, and the nozzle holes of the throat pipe 3 are provided. Blow out from 3b to the right.

On the other hand, the air passage of the diffuser pipe 2 is smoothly connected to the air passage of the throat pipe 3 on the left side thereof, and gradually widens from here to the opening 2a. A plurality of electrodes 8 are arranged on the side wall of the diffuser tube 2 along the circumferential direction, and these electrodes 8 are covered with a cover 9. One end of each of these electrodes 8 is exposed on the inner peripheral wall surface of the diffuser tube 2. Further, these electrodes 8 are a combination of an anode and a cathode, and a plurality of sets of the anode and the cathode are arranged by alternately arranging the anode and the cathode. A DC voltage of 4 (KV) to 10 (KV) is applied between these anodes and these cathodes, whereby discharge occurs and air is ionized.

In such a structure, when the air flows through the duct pipe 1, the air passage of the air gradually narrows before reaching the throat pipe 3, so that the flow velocity of the air increases. Further, in the throat pipe 3, compressed air is blown out from each nozzle hole 3b along the air flow in the slot pipe 3, so that the flow velocity of the air is further increased. The air having the increased flow velocity is discharged from the opening 2a through the diffuser pipe 2 and reaches far due to the flow velocity. Further, when the air passes through the diffuser tube 2, the air is ionized by the discharge of each electrode 8, so that the ionized air reaches far.

The pressure of the compressed air sent into the air chamber 7 can be adjusted so that the flow velocity of the air blown out from each nozzle hole 3 b of the slot tube 3 is changed, and the air discharged from the diffuser tube 2 is changed. The flow velocity and flow rate may be set arbitrarily.

FIG. 2 is a cross-sectional view showing another embodiment of a two-stage nozzle hole blower. Here, two throat pipes, that is, a first throat pipe 21 and a second throat pipe 22 are used, and these throat pipes 21 and 22 are interposed between a duct pipe 23 and a diffuser pipe 24. I am letting you.

That is, the first throat pipe 21 is inserted on the right side of the duct pipe 23, and the two O-rings 25 and 26 are sandwiched between them. Further, the second throat pipe 22 is inserted into the first throat pipe 21, and the O-ring 27 is sandwiched between them. Further, the diffuser pipe 24 is divided into two parts, a first diffuser pipe 24 a and a second diffuser pipe 24 b, and in a state where the second throat pipe 22 is arranged inside the first diffuser pipe 24 a. The first diffuser pipe 24 a is screwed into the first throat pipe 21. An O-ring 28 is sandwiched between the first diffuser pipe 24a and the second throat pipe 22, and an O-ring 29 is sandwiched between the first diffuser pipe 24a and the first throat pipe 21. It is Further, the second diffuser pipe 24b is screwed into the first diffuser pipe 24a.

A first air chamber 31 is formed between the outer peripheral wall surface of the first throat pipe 21 and the inner peripheral wall surface of the duct tube 23, and the outer peripheral wall surface of the second throat pipe 22 and the first air chamber 31 are formed. A second air chamber 32 is formed between the inner wall surface of the diffuser pipe 24a and the first air chamber 31 and the second air chamber 32 are the first throat pipe. It is communicated through a vent hole 21a formed in 21. Further, a plurality of nozzle holes 21b are formed on the side wall of the first throat pipe 21 along the circumferential direction, and a plurality of nozzle holes 21b are formed on the side wall of the second throat 22 along the circumferential direction. 22a is formed. Here, the base of the air supply pipe connected to the air compressor (not shown) is screwed into the screw hole 33 formed in the side wall of the first diffuser pipe 24a, and the compressed air passes through the screw hole 33 to generate the second air. It is sent to the chamber 32. As a result, compressed air is blown out from each nozzle hole 22a of the second throat pipe 22. Further, since the compressed air in the second air chamber 32 is also sent to the first air chamber 31 via the ventilation hole 21a, the compressed air is also discharged from each nozzle hole 21b of the first throat pipe 21. It will blow out.

Therefore, the air flowing through the duct pipe 23 has its flow velocity increased by the blowing of the compressed air from each nozzle hole 21 b of the first throat pipe 21, and then each nozzle of the second throat pipe 22. The flow velocity of the compressed air is again increased by the blowout of the compressed air from the hole 22a, and thereafter, it is discharged through the diffuser pipe 24. By increasing the flow velocity of air twice in this way, compared to the device shown in Fig. 1, the reaching distance of the air can be almost doubled, and it becomes possible to send the air further away. Become.

On the other hand, a plurality of electrodes 34 are arranged along the circumferential direction on the side wall of the first diffuser pipe 24a. A DC voltage is applied to these electrodes 34 as in the case of the electrodes 8 shown in FIG. 1, so that a discharge is generated here and the air passing through the first diffuser tube 24a is ionized.

If the blowing of the compressed air is repeated in multiple stages in the middle of the air passage, the flow velocity of the air is further increased, and the air can be delivered further.

[0020]

【effect】

 As described above, according to the air blower of the present invention, the air is blown from the plurality of nozzles formed on the inner peripheral wall surface of the throat toward the opening of the diffuser, so that the flow velocity of the air is reduced. It can be increased and air can be delivered far. Further, since the discharge electrodes are arranged on the inner peripheral wall surface of the diffuser, the air can be ionized. Therefore, it becomes possible to deliver the ionized air to every corner of the room.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an air blower according to the present invention.

FIG. 2 is a sectional view showing another embodiment of the blower according to the present invention.

[Explanation of symbols]

 1,23 Duct pipe 2,24 Diffuser pipe 3 Throat pipe 3b, 21b, 22a Nozzle hole 4,5,25,26,27,28,29 O-ring 6,33 Screw hole 7 Air chamber 8,34 Electrode 21 1st Throat pipe 22 second throat pipe 31 first air chamber 32 second air chamber

Claims (1)

[Scope of utility model registration request] 1. A throat formed by squeezing the inner diameter of an air passage at the end of the air passage, and a throat connected to this throat, the inner diameter gradually expanding from the connecting portion to the opening portion, and air is discharged from the opening portion. An air blower comprising: a diffuser for discharging and a nozzle formed on an inner peripheral wall surface of the throat and blowing air toward an opening of the diffuser, wherein an electrode for discharge is arranged on the inner peripheral wall surface of the diffuser.