CN202937524U - Vaneless fan provided with double-angle spray pipe - Google Patents

Vaneless fan provided with double-angle spray pipe Download PDF

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Publication number
CN202937524U
CN202937524U CN2012206798276U CN201220679827U CN202937524U CN 202937524 U CN202937524 U CN 202937524U CN 2012206798276 U CN2012206798276 U CN 2012206798276U CN 201220679827 U CN201220679827 U CN 201220679827U CN 202937524 U CN202937524 U CN 202937524U
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CN
China
Prior art keywords
air
jet pipe
jet
flow
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012206798276U
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Chinese (zh)
Inventor
李耀强
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Individual
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Individual
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Priority to CN2012206798276U priority Critical patent/CN202937524U/en
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Publication of CN202937524U publication Critical patent/CN202937524U/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles

Abstract

A vaneless fan provided with a double-angle spray pipe mainly comprises a circular air flow spraying device (1), a base (2) and an air flow pressurizing device (3), wherein the inner side wall of the air flow spraying device is provided with first spray pipes and second spray pipes at intervals, and a separation block is arranged between each first spray pipe and each second spray pipe which are adjacent to each other. Due to the fact that the air outlet area is reduced, on the premise that other function parameters are uniform, air pressure is correspondingly increased, air can be blown farther, and more air can be sucked into an air flow channel. Besides, air flow sprayed by the first spray pipes and the second spray pipes forms two circles of air flow in different directions, and the fact that air amount in the middle portion of the air flow channel is too little is avoided.

Description

The two angle jet pipes of band without blade fan
Technical field
The utility model relate to a kind of with two angle jet pipes without blade fan, belong to the optimisation technique without blade fan.
Background technique
Application number be 200810177843.3 be to disclose a kind of fan in 200810177844.8 patent document with application number, formed by pedestal and the annular row gas port that is arranged on pedestal, be provided with the inner passage and the relief opening that receive from the air-flow in pedestal in the annular row gas port, the air of fan outside is deflated the air-flow suction that mouth ejects, and the air-flow that blows to the user is increased.The advantage of this design is there is no exposed blade, solved that blade is difficult to clean and with the deficiency of potential safety hazard, and reduced noise, have stronger visual impact, by the uniform air-flow of speed that relief opening ejects, utilize well Coanda effect to change the flow direction of relief opening air-out, and the air that drives the fan outside flows to the user, for guaranteeing air output, must strengthen the power of suction fan, improve the rotating speed of suction fan.
Usually, adopt the design of ring-type spout without blade fan, the angle of ring-type spout is fixed, and usually only have one ring-type spout, deficiency be the air-flow path middle part throughput a little less than.
Therefore, need to seek and a kind ofly can effectively strengthen blast, can entrainment the air-flow at more air and air-flow path middle part relatively strong without blade fan.
Summary of the invention
The purpose of this utility model is to provide a kind ofly can effectively strengthen blast, can entrainment the air-flow at more air and air-flow path middle part relatively strong without blade fan.
The technical solution of the utility model is: be with mainly being comprised of annular airflow injection apparatus 1, pedestal 2 and air-flow supercharging device 3 without blade fan of two angle jet pipes; Jet-impingement device 1 is positioned at pedestal 2 tops, and its middle part limits an air-flow path; The jet-impingement device comprises gas collection storehouse 11, air flue 12, outer side wall 13, madial wall 14; Gas collection storehouse 11 is positioned at the bottom, is communicated with the air outlet of the air-flow supercharging device 3 that is positioned at pedestal 2; Pedestal 2 outer walls are provided with inlet hole, air flue 12 is annular hollow passages that are positioned at jet-impingement device 1 inside, limited by outer side wall 13 and madial wall 14 docking, the interval arranges the first jet pipe 16 and the second jet pipe 17 on the madial wall 14 of jet-impingement device 1, is provided with spacing block 15 between the first adjacent jet pipe and the second jet pipe; Described the first jet pipe and the second jet pipe are arranged on madial wall in the form of a ring; Form the angle of 5-45 degree between the air-flow that the air-flow that the first jet pipe 16 blows out and the second jet pipe blow out.
Described the first jet pipe 16 tilts from air flue 12 interior outlet side to air-flow path, the outlet side of a part of air-flow along madial wall 14 wall flows to air-flow path.
The air-flow that described the first jet pipe 16 sprays is horizontal by the angle of 0-30 degree, the angle of air-flow horizontal by 15 to 60 degree of described the second jet pipe 17 ejections; The angle of described the second jet pipe and horizontal plane than the angle of the first jet pipe 16 and horizontal plane at the 5-45 degree.
The inwall of described the first jet pipe 16 and the second jet pipe 17 is curved.
The projection of described the second jet pipe 17 on the plane that madial wall 14 launches forms 5 to 85 angles of spending with the air inlet end face of madial wall.
The edge that is positioned at air flue 12 inside at described the first jet pipe 16 is provided with flow guide device.
The edge that is positioned at air flue 12 inside at described the second jet pipe 17 is provided with flow guide device.
Beneficial effect:
1, on the madial wall of jet-impingement device, the interval arranges the first jet pipe and the second jet pipe, be provided with spacing block between the first adjacent jet pipe and the second jet pipe, because the area of air-out has reduced, under the consistent prerequisite of other functional parameter, blast is corresponding have been increased, inlet end at air-flow path forms larger negative pressure, can entrainment more air and enter air-flow path.
2, the air-flow of the first jet pipe and the second jet pipe ejection forms the two different air-flows of circle angle, can increase the throughput at air-flow path middle part.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is schematic appearance of the present utility model;
Fig. 3 is the partial enlarged drawing of A in Fig. 1;
Fig. 4 is the partial enlarged drawing of B in Fig. 2.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the two angle jet pipes of band mainly is comprised of annular airflow injection apparatus 1, pedestal 2 and air-flow supercharging device 3 without blade fan.Jet-impingement device 1 is positioned at pedestal 2 tops, and its middle part limits an air-flow path; The jet-impingement device comprises gas collection storehouse 11, air flue 12, outer side wall 13, madial wall 14; Gas collection storehouse 11 is positioned at the bottom, is communicated with the air outlet of the air-flow supercharging device 3 that is positioned at pedestal 2; Pedestal 2 outer walls are provided with inlet hole, and air flue 12 is annular hollow passages that are positioned at jet-impingement device 1 inside, are limited by outer side wall 13 and madial wall 14 docking.Air-flow supercharging device when work, the air in the external world is sucked from the inlet hole that is located on base outer wall, through supercharging after-blow intake duct 12.
The interval arranges the first jet pipe 16 and the second jet pipe 17 on the madial wall 14 of jet-impingement device 1, is provided with spacing block 15 between the first adjacent jet pipe and the second jet pipe; Described the first jet pipe and the second jet pipe are arranged on madial wall in the form of a ring; Form the angle of 5-45 degree between the air-flow that the air-flow that the first jet pipe 16 blows out and the second jet pipe blow out.Air-flow in air flue 12, from the first jet pipe and the ejection of the second jet pipe, inlet end at air-flow path forms the two different air-flows of circle spray angle, blow to that circle air-flow at air-flow path middle part, make the middle part of air-flow path inlet end form stronger negative pressuren zone, entrainment ambient air and enter the middle part of air-flow path, the throughput at air-flow path middle part is increased; Another circle air-flow flows to the outlet side along the surface of madial wall, utilizes Coanda effect to entrainment the air-flow path ambient air; Above-mentioned two circle air-flows merge the outlet side that flows to air-flow path.Usually, only be provided with circle spout and an angle without blade fan and fix, the throughput that causes the air-flow path middle part a little less than.The utility model has the air-flow of 5-45 degree angle owing to forming two circle injection directions, therefore, can overcome the weak defective of air-flow path middle part air-flow, and the air-flow that blows to the user is more even.
Due to the summation of the nozzle hole sectional area of the first jet pipe and the second jet pipe area less than continuous annular jet, therefore, the air-flow air pressure of ejection is larger, can blow fartherly, the negative pressure that forms is also corresponding larger, also just can entrainment more air, thereby better dry effect.
Described the first jet pipe 16 tilts from air flue 12 interior outlet side to air-flow path, the outlet side of a part of air-flow along madial wall 14 wall flows to air-flow path.
The air-flow that described the first jet pipe 16 sprays is horizontal by the angle of 0-30 degree, the angle of air-flow horizontal by 15 to 60 degree of described the second jet pipe 17 ejections; The angle of described the second jet pipe and horizontal plane than the angle of the first jet pipe 16 and horizontal plane at the 5-45 degree.
The inwall of described the first jet pipe 16 and the second jet pipe 17 is curved, makes the air-flow in air flue can flow to swimmingly air-flow path.
The projection of described the second jet pipe 17 on the plane that madial wall 14 launches forms 5 to 85 angles of spending with the air inlet end face of madial wall.The air-flow of the second jet pipe ejection does not directly blow to the outlet side of air-flow path, but side direction blows out, and forms the swirl shape air-flow in air-flow path.
The edge that is positioned at air flue 12 inside at described the first jet pipe 16 is provided with flow guide device, and steering flow flows into the first jet pipe swimmingly.
The edge that is positioned at air flue 12 inside at described the second jet pipe 17 is provided with flow guide device, and steering flow flows into the second jet pipe swimmingly.
In the power of air-flow supercharging device and performance all under identical prerequisite, because the utility model adopts the middle design that leaves the independent jet pipe of spacing block, actual air-out area has been reduced, thereby blast is increased, and the distance of jet-impingement is also just farther, simultaneously, according to venturi principle, under stronger jet-impingement condition, the negative pressure of air-flow path inlet end is larger, can entrainment more air and enter air-flow path.
Because air has diffusivity, although leave distance between jet pipe, because air-flow has diffusivity, the user can not feel the space between air-flow.
Above-described embodiment is only interpretation purposes of the present utility model; and be not to be to restriction of the present utility model, those skilled in the art are in essential scope of the present utility model; make a variety of changes or substitute, also should belong to protection category of the present utility model.

Claims (7)

  1. The two angle jet pipes of band without blade fan, mainly formed by annular airflow injection apparatus (1), pedestal (2) and air-flow supercharging device (3); Jet-impingement device (1) is positioned at above pedestal (2), and its middle part limits an air-flow path; The jet-impingement device comprises gas collection storehouse (11), air flue (12), outer side wall (13), madial wall (14); Gas collection storehouse (11) is positioned at the bottom, is communicated with the air outlet of the air-flow supercharging device (3) that is positioned at pedestal (2); Pedestal (2) outer wall is provided with inlet hole, air flue (12) is to be positioned at an inner annular hollow passage of jet-impingement device (1), limited by outer side wall (13) and madial wall (14) docking, it is characterized in that: the madial wall (14) in jet-impingement device (1) upward arranges the first jet pipe (16) and the second jet pipe (17) in the interval, is provided with spacing block (15) between the first adjacent jet pipe and the second jet pipe; Described the first jet pipe and the second jet pipe are arranged on madial wall in the form of a ring; Form the angle of 5-45 degree between the air-flow that the air-flow that the first jet pipe (16) blows out and the second jet pipe blow out.
  2. 2. two angle jet pipes of band according to claim 1 without blade fan, it is characterized in that: described the first jet pipe (16) outlet side to air-flow path in the air flue (12) tilts, the outlet side of a part of air-flow along madial wall (14) wall flow to air-flow path.
  3. 3. two angle jet pipes of band according to claim 2 without blade fan, it is characterized in that: the air-flow of described the first jet pipe (16) ejection is horizontal by the angle of 0-30 degree, the angle of air-flow horizontal by 15 to 60 degree of described the second jet pipe (17) ejection; The angle of described the second jet pipe and horizontal plane than the angle of the first jet pipe (16) and horizontal plane at the 5-45 degree.
  4. The two angle jet pipes of band according to claim 1 without blade fan, it is characterized in that: the inwall of described the first jet pipe (16) and the second jet pipe (17) is curved.
  5. The two angle jet pipes of band according to claim 1 without blade fan, it is characterized in that: the projection of described the second jet pipe (17) on the plane that madial wall (14) launches forms 5 to 85 angles of spending with the air inlet end face of madial wall.
  6. The two angle jet pipes of band according to claim 1 without blade fan, it is characterized in that: be positioned at air flue (12) inner edge at described the first jet pipe (16) and be provided with flow guide device.
  7. The two angle jet pipes of band according to claim 1 without blade fan, it is characterized in that: be positioned at air flue (12) inner edge at described the second jet pipe (17) and be provided with flow guide device.
CN2012206798276U 2012-12-11 2012-12-11 Vaneless fan provided with double-angle spray pipe Expired - Fee Related CN202937524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012206798276U CN202937524U (en) 2012-12-11 2012-12-11 Vaneless fan provided with double-angle spray pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012206798276U CN202937524U (en) 2012-12-11 2012-12-11 Vaneless fan provided with double-angle spray pipe

Publications (1)

Publication Number Publication Date
CN202937524U true CN202937524U (en) 2013-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012206798276U Expired - Fee Related CN202937524U (en) 2012-12-11 2012-12-11 Vaneless fan provided with double-angle spray pipe

Country Status (1)

Country Link
CN (1) CN202937524U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996531A (en) * 2012-12-11 2013-03-27 李耀强 Bladeless fan with double-angle spray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996531A (en) * 2012-12-11 2013-03-27 李耀强 Bladeless fan with double-angle spray tube
CN102996531B (en) * 2012-12-11 2015-12-02 长乐市丽智产品设计有限公司 The two angle jet pipe of band without blade fan

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130515

Termination date: 20151211

EXPY Termination of patent right or utility model