Swirl entraining range hood with separatedly installed core mechanism and smoke collecting cover

A technology for rolling a range hood and a fume collecting hood is applied in the field of pneumatic dust removal devices, and can solve the problems of increased load, frequent replacement of range hoods, sticking of valve plates, etc.

Inactive Publication Date: 2012-09-26
丁德厚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The previously developed "high-efficiency lampblack purifier with dual negative pressure cores that can be self-adaptively installed" applied for a utility model patent on September 27, 2010 (Chinese patent application number: 201020555381.7). , Self-adaptive installation and other aspects have taken a step forward, providing strong support for the separate installation of the range hood and the hood. However, the swirl entrainment device and the smoke collection hood are still installed in one piece, and the body is still swollen. The outer packaging of the range hood cannot be changed as often as fashion
[0005] The range hood with one-piece hood not only restricts commercial development, but also has many structural defects. For example, the butterfly "check valve" to prevent backflow of air flow needs to be opened by strong air flow, so it is installed in the exhaust of the fan. The tuyere is hidden deep in the shell of the range hood. The most likely failure of this butterfly "check valve" to be contaminated with grease is: in the cold season or when the range hood is not used for a long time, the valve plate is easily stuck by the solidified grease. Hold on, only one piece can be opened when the machine is turned on again, and the flow of oil fume must be cut in half! This kind of fault is difficult to find and not easy to eliminate immediately, manufacturers and users are turning a blind eye
The one-piece hood increases the load of the hoisting tube and the smoke collecting hood. The hoisting tube must be double-layered, the inner layer is hoisted and the outer layer is decorated, and the shell of the smoke collecting hood must be made of high-strength plates, which will increase the cost; The fume collecting hood and the hoisting tube of the "near-suction" range hood can be tubed. Since the hood is connected, the fume collecting hood needs to be installed at a low angle and the upper edge shrinks inward, and the effect of gathering oil is greatly reduced; there is also a The "smokeless cooktop" with a range hood installed under the cooktop can save the fume collection hood and hoisting tube, but it is sucked against the rise of the fume, and the extraction rate of the fume is obviously very low

Method used

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  • Swirl entraining range hood with separatedly installed core mechanism and smoke collecting cover
  • Swirl entraining range hood with separatedly installed core mechanism and smoke collecting cover
  • Swirl entraining range hood with separatedly installed core mechanism and smoke collecting cover

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment is the embodiment that the present invention uses a circular smoking pipe instead of a square hoisting tube to suspend a rugby surface-shaped fume collecting hood.

[0029] Such as figure 1 , figure 2 Shown in: a horn 2 is embedded concentrically at one end of a section straight circular tube 1 with a diameter of 200mm, the generatrix of the horn 2 is parabolic, and the diameter of the small mouth of the horn 2 is 0.6 to 0.6 to the diameter of its large mouth. 0.8 times, the length of the horn is 0.6 to 0.8 times the length of the straight tube, the diameter of the large mouth of the horn is equal to the diameter of the tube, and a circular groove with a "V" shape in cross section and a closed bottom is formed at one end of the straight tube 3. A centrifugal fan 4 is installed on the outside of the annular groove 3. The air supply pipe of the fan is connected tangentially to the annular groove 3 and leads to the middle of the annular swirl groove 3; th...

Embodiment 2

[0032] This embodiment is the embodiment of the present invention in which an ultra-thin European-style smoke collecting hood is suspended by two thin round tubes on a domestic general-purpose double-cooker cooktop.

[0033] Such as image 3 , Figure 4 , shown in: In the present embodiment, in a sealed sound-absorbing square box 5, a horizontally installed swirl entrainment device, and one end of the swirl entrainment device is sealed and protruded from one side of the square box 5 as a smoke exhaust pipe. Joint 20, the structure and installation mode of these several parts, fittings are identical with embodiment 1. What is different from Embodiment 1 is that: for the domestic general-purpose two stove tops, the reducing elbow 6 installed at the bottom of the annular groove at one end of the straight tube 1 is sealed downward from the bottom surface of the square box 5. Go out towards the cooktop, make the joint 7 of the swirl oil smoke pipe, choose a metal colored surface ...

Embodiment 3

[0036] The present embodiment is an implementation example of the utility model on an island-type stove top, with three round pipes hanging a plum-blossom-shaped fume-collecting hood in the air.

[0037] Such as Figure 4 , Figure 5 As shown in ,: the swirl entrainment device in this embodiment is erected in the sound-absorbing and sealed square box 5, and extends into a horn 2 concentrically from the lower end of a section of straight circular pipe 1 to form a cross-section An annular groove 3 with a closed bottom in a "V" shape, two centrifugal fans 4 of the same type are installed on both sides of the annular groove, and the two fans are juxtaposed with the annular groove 3 in the shape of a "product". The air supply pipe enters the annular groove 3 symmetrically and tangentially, and installs a straight pipe variable diameter pipe 6 at the bottom of the annular groove 3 as the joint 7 of the swirl entrainment smoke pipe, and installs the joint of the smoke exhaust pipe a...

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PUM

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Abstract

A swirl entraining range hood with a separatedly-installed core mechanism and smoke collecting cover. A swirl entraining device is placed in a sealed sound-absorbing square box, is separatedly from a smoke collecting cover, and is highly installed on a kitchen furred ceiling, or is directly installed on a kitchen wall with a height being same as the height of a smoke vent on the wall, and thus smoke-discharging pipe is directly communicated with the outside of the room; vertically-arranged round smoke-entraining pipes can be used to replace square hoisted cylinders; therefore colorful and variable smoke collecting covers can be derived, which can be hung above a kitchen range, and form a highlight in the kitchen like luxury pendent lamps. When the invention is used for replacing an original range hood in an individual family, an original installation position needs no change, and the shape of the original range hood which is accepted by the user can be followed; therefore the brand effect of a brand range hood can be maintained, and the replacement can be carried out easily.

Description

technical field [0001] The invention belongs to the technical field of pneumatic dust removal devices, and in particular relates to a household electric range hood, in particular to a swirl range range hood in which a core and a smoke collection hood are separately installed. Background technique [0002] The advancement of science and technology and the popularization of fashion spirit are promoting the upgrading of household appliances. Shared flues are popularized in residential kitchens in our country, and the "integrated kitchen" that emphasizes the integration of kitchen utensils is quietly emerging. Open kitchens have already adopted island-style stoves. The mobile phone market tends to be fashionable. [0003] Fans of traditional range hoods are all installed in the shell of the fume collection hood, and fans of European-style range hoods are also installed in the hoisting tube connected with the shell of the fume hood. The fan is originally a noise source, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 丁德厚
Owner 丁德厚
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