TWM461764U - Isolated smoke exhauster - Google Patents

Description

Separate range hood

This creation is about a separate range hood, especially one that can eliminate soot and harmful gases, prevent soot and harmful gases from leaking, and can effectively avoid noise.

The "traditional kitchen range hood" is not much different from the top suction hood generally used in the workplace. In such a range hood, within a short distance below the circular suction port, the velocity of the fluid upwards has become very small, and the upward suction force is insufficient, so that it is highly susceptible to movements from people, fans or The influence of disturbed airflow such as cold air operation reduces the effective soot trapping area to a very small range. In this way, the soot that is in close proximity to the suction port will escape with the flow of the disturbing airflow, which is harmful to the health of the kitchen cook.

Therefore, the creator has used the principle of gas dynamics to develop a range hood with a "air curtain" to overcome the above problems. The main technical content is that the front side of the flow table is provided with a flow of air blown back obliquely upwards, and a slit-shaped air hood is arranged above the furnace table, so that the left and right sides of the table top are completely emptied as a supplement. The use of gas, and the blowing, sucking airflow to form a nearly two-dimensional air curtain. And this flow field conforming to the aerodynamic principle will cause the soot and toxic gas between the oblique air curtain and the rear wall to be discharged to the upper suction hood stably stabilized by the air flow.

When used, the above-mentioned range hood can indeed be in a state where there is no strong disturbance of airflow. The utility model effectively eliminates and blocks the oil smoke and harmful gases, and can minimize the leakage caused by the personnel walking in front of the flow table and the slight disturbance of the airflow (the disturbance speed of about 20 cm/s or less). However, the range hood draws in air by the unobstructed space on the left and right sides of the table top to form a two-dimensional air curtain facing the cook. Therefore, although it can form a strong blocking effect on the interference airflow in front of the flow table, it is difficult to completely exclude other slightly strong disturbing airflows from all directions in the kitchen space, and when the disturbing airflow acts on the left and right sides of the table top, At the same time, since the left and right sides of the table top are emptied to serve as an air supply space, the disturbing airflow from the lateral direction will destroy the air curtain structure through the air supply space, and the ability to remove the oil smoke is greatly reduced. Since the above-mentioned two-dimensional air curtain type exhaust fumes must be equipped with a device for blowing and exhausting at the same time, it is rather troublesome in replacement or installation work, and the equipment and labor costs are relatively increased.

Furthermore, in order to avoid weakening of the suction force to provide a strong suction force, the conventional range hood is directly equipped with a blower directly above the suction hood to extract the soot, but this design will be used when the blower is running. Produces considerable noise.

In view of this, in order to provide a range hood different from the conventional technology, the above disadvantages are improved, and the following objectives are achieved, and the creator has accumulated many years of experience and continuous research and development improvements, and this creation has not been produced.

One of the aims of the present invention is to provide a separate range hood that blocks the disturbing airflow from the lateral direction to form a complete upwardly directed airflow to remove soot and harmful gases and prevent the soot and harmful gases from leaking out.

One of the aims of the present invention is to provide a separate type that can effectively prevent noise generation in an indoor working place when the blower is operated to suck oily smoke and harmful gases. Ventilator.

For the purpose of the above creation, the separate range hood of the present invention comprises a suction hood, an air suction device, a rear plate, an elongated left vertical plate and an elongated right vertical plate. Wherein, the suction hood is provided with a collecting box, one end of the collecting box is provided with an inlet end for pumping, and the inlet end is connected with a long tube. The bottom of the collecting box is provided with a narrow and downwardly facing suction port, and the narrow suction port is connected with the inlet end, and the front end of the narrow suction port is provided with a narrow and downwardly blowing blowing groove, and a narrow blowing groove and blowing The air device is connected to blow air downward; and the elongated air suction port and the narrow air blowing groove are disposed between the front end surface and the rear end surface of the air suction cover, and parallel to the front end surface and the rear end surface; the air suction device is provided An intake end and an outlet end are connected to one end of the long tube; the rear plate is fixed below the rear end surface of the suction hood; the elongated left vertical plate is fixed below the left side of the suction hood; The elongated right vertical plate is fixed below the right side of the suction hood.

When implemented, the air extraction device is preferably an electrically driven blower.

In implementation, the creation further includes a protective box, and an accommodation space is formed in the protective box for accommodating the positioning air extracting device.

In order to facilitate a deeper understanding of this creation, it is detailed later:

1‧‧‧Separate range hood

11‧‧‧ wall

12‧‧‧ platform

13‧‧‧ gas producing device

131‧‧‧ trailing edge

132‧‧‧ leading edge

2‧‧‧ suction hood

21‧‧‧Wind box

211‧‧‧ Space

212‧‧‧floor

213‧‧‧ entrance end

214‧‧‧Long tube

22‧‧‧Exhaust port

221‧‧‧Blowing trough

2211‧‧‧Left blow tank

2212‧‧‧ right blow tank

222‧‧‧Blowing device

23‧‧‧ front end

24‧‧‧ rear end face

25‧‧‧First qi space

26‧‧‧Second air supply space

27‧‧‧ Third qi space

28‧‧‧ Fourth qi space

3‧‧‧Exhaust device

31‧‧‧ protective box

32‧‧‧ accommodating space

33‧‧‧ intake end

34‧‧‧Exhaust end

4‧‧‧Long left vertical board

41‧‧‧First Drainage Department

5‧‧‧Long-shaped right vertical board

51‧‧‧Second diversion

6‧‧‧ Back panel

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a schematic cross-sectional view of a preferred embodiment of the present invention mounted on a wall.

Figure 3 is a perspective view showing another embodiment of the blowing groove of the preferred embodiment of the present invention.

Figure 4 is a diagram showing the state of use of the preferred embodiment of the present invention during exhaust.

Fig. 5 is a view showing the state of use of the gas generating apparatus of the preferred embodiment of the present invention in the generation of high temperature gas.

The split-type range hood includes a suction hood, an air suction device, a rear plate, an elongated left vertical plate, and an elongated right vertical plate. The suction hood is provided with a collecting box, the collecting box is provided with an inlet end, and the inlet end is connected with a long tube. The bottom of the wind collecting box is provided with an air suction port, and the air suction port is connected with the inlet end. The front end of the air suction port is provided with a blowing air groove, and the air blowing groove is connected with the air blowing device; and the air suction device is provided with an air inlet end and an air outlet end. The gas end is connected to one end of the long pipe; the rear plate, the elongated left vertical plate and the long right vertical plate are respectively fixed on the rear end surface, the left side surface and the right side surface of the suction hood.

Referring to Figures 1 and 2, which is a preferred embodiment of the inventive split-type range hood 1, the split-type range hood 1 includes a suction hood 2, an air suction device 3, and an elongated left A vertical plate 4, an elongated right vertical plate 5 and a rear plate 6.

The rear cover of the suction hood 2 is mounted on a wall 11 and is located above a platform 12. The surface of the platform 12 is provided with a burner, and the top of the burner can be provided with a pot. It is the gas generating device 13, wherein one side of the gas generating device 13 facing the wall 11 is defined as a trailing edge 131, and a side opposite to the trailing edge 131 and away from the wall 11 is defined as a leading edge 132. When implemented, the gas generating device 13 may also include a pot or other appliance that can generate harmful gases.

The suction hood 2 is provided with a wind collecting box 21, which is a substantially rectangular housing, and a space 211 is formed therein, and the bottom plate 212 of the wind collecting box 21 is provided with a narrow and parallel parallel to each other. a suction port 22 with a downward opening and a blowing groove 221 with a narrow opening and a downward opening. The narrow suction port 22 and the air blowing groove 221 are located between the front end face 23 and the rear end face 24 of the suction hood 2, and are parallel to the front end face 23 and the rear end face 24. The elongated blowing groove 221 is in communication with an air blowing device 222 for blowing air downward; in practice, the air blowing device 222 is a blower or a cross flow fan, and as shown in FIG. 3, the elongated shape The blowing groove 221 may also be composed of a left blowing air groove 2211 and a right blowing air groove 2212 which are located on the same straight line; or the elongated air blowing groove 221, the left blowing air groove 2211 or the right blowing air groove 2212 It is made up of several spaced air holes. The top end of the wind collecting box 21 is provided with a circular inlet end 213, and the inlet end 213 is connected to one end of a long tube 214.

The air extracting device 3 is disposed in the accommodating space 32 inside the protective box 31, and the air extracting device 3 is provided with an air inlet end 33 and an air outlet end 34. When the other end of the long tube 214 passes through the wall After 11 , it is connected to the intake end 33 of the air extracting device 3. When implemented, the air extracting device 3 is an electrically driven blower, a blower fan or other extractable fluid machine.

The elongated left vertical plate 4 is substantially rectangular, and its top end is fixed below the left side surface of the wind collecting box 21 so as to extend downward from the lower side of the left side surface of the wind collecting box 21, and the front end of the long left vertical board 4 is provided with a front side. The curved first flow guiding portion 41, the horizontal width W of the elongated left vertical plate 4 is not less than the horizontal distance W1 between the trailing edge 131 of the gas generating device 13 and the wall 11, the standing of the elongated left vertical plate 4 The face length H is not less than the height H1 from the top end of the platform 12 to the bottom end of the elongated left vertical plate 4.

The elongated right vertical plate 5 is symmetrical with the elongated left vertical plate 4 on the left and right sides of the wind collecting box 21, and the top end of the elongated right vertical plate 5 is fixed below the right side surface of the wind collecting box 21, so that the set The lower side of the right side of the bellows 21 extends downward, and the left side of the front end of the elongated right vertical plate 5 is provided with an arc-shaped second flow guiding portion 51. The horizontal width of the elongated right vertical plate 5 is not less than that of the gas generating device 13. The horizontal distance between the trailing edge 131 and the wall 11, the length of the elevation of the elongated right vertical plate 5 is not less than the top end of the platform 12 to the elongated shape The height of the bottom end of the right vertical plate 5.

In this way, the front end surface of the elongated left vertical plate 4 and the lower end of the left side surface of the suction hood 2 form a first rectangular air supply space 25, and the front end surface of the elongated right vertical plate 5 and the suction hood A second rectangular air space 26 having a substantially rectangular shape is formed below the front end of the right side surface of the second surface. A substantially rectangular third plenum space 27 is formed between the bottom end of the left vertical plate 3 and the left side of the platform 12, and a rough outline is formed between the bottom end of the right vertical plate 4 and the right side of the platform 12. The fourth qi space of the rectangle is 28.

The rear plate 6 is a rectangular flat plate whose top end is fixed below the rear end surface 24 of the wind collecting box 21, and the length of the rear surface of the rear plate 6 is not less than the height of the bottom end of the platform 12 to the rear plate 6, and the left side of the rear plate 6 The surface abuts the rear end surface of the elongated left vertical plate 4, and the right side surface of the rear plate 6 abuts the rear end surface of the elongated right vertical plate 5.

Thereby, as shown in FIG. 4, when the present creation is fixed on the wall 11, and the gas generating device 13 starts to generate soot or other harmful gas, the operation of the air extracting device 3 causes the elongated suction port 22 to start pumping upward. And by the high-speed suction function of the narrow suction port 22, an oblique airflow is formed below the front end of the wind collecting box 21 to drive the soot or other harmful gas generated by the gas generating device 13 to rise and pass the wind collecting. The space 211 inside the tank 21, the inlet end 213 of the top end of the wind collecting box 21, and the long pipe 214 are discharged outward from the air outlet end 34 of the air suction device 3 installed outside. In practice, the air extracting device 3 can also be installed indoors, and the air outlet end 34 of the air extracting device 3 communicates with the outdoor, so that the effect of mute and exhaust can be achieved.

In addition, due to the blocking of the elongated left vertical plate 4 and the elongated right vertical plate 5, the disturbing airflow in the lateral direction can be resisted to prevent the oblique airflow structure from being damaged, and due to the barrier of the rear plate 6, The oil smoke or other harmful gas can be prevented from being elongated by the rear end surface 24 of the wind collecting box 21 The left side of the vertical plate 4 and the right side of the elongated right vertical plate 5 leak outward to form a complete upward guiding airflow to remove soot and harmful gases.

As shown in Fig. 5, when the gas generating device 13 generates a high-temperature gas, the soot is diffused toward the front end face 23 of the suction hood 2 due to the expansion phenomenon of the gas, and the air blown downward by the blowing groove 221 at this time. The high temperature inflation gas can be prevented from escaping from the front end of the bottom of the suction hood 2, and the high temperature gas is guided to enter the narrow suction port 22 to prevent high temperature gas from leaking.

Therefore, this creation has the following advantages:

1. This creation draws air through a narrow and long suction port, and blocks the disturbing airflow from the lateral direction with long left and right vertical plates. Therefore, a complete upward guiding airflow can be formed to eliminate oil smoke and harmful gases. And prevent oil fumes and harmful gases from leaking out.

2. The creation system combines a long and narrow suction port, a long left and right vertical plate and a rear plate to form a complete upward guiding airflow, thereby eliminating oil smoke and harmful gases, so that it is possible to replace other kitchenware. In the case of direct replacement of the traditional type of range hood, it is quite convenient to use and install.

3. This creation system separates the air suction device from the air suction hood. Therefore, when the air suction device is operated to suck oil smoke and harmful gases, noise can be effectively avoided to ensure the quietness of the indoor working place.

In summary, according to the above disclosure, this creation can achieve the intended purpose, providing a separate range hood that can eliminate soot and harmful gases, prevent soot and harmful gas leakage, and effectively avoid noise. It is of great value for industrial use and proposes new patent applications in accordance with the law.

1‧‧‧Separate range hood

2‧‧‧ suction hood

21‧‧‧Wind box

213‧‧‧ entrance end

214‧‧‧Long tube

22‧‧‧Exhaust port

221‧‧‧Blowing trough

222‧‧‧Blowing device

23‧‧‧ front end

24‧‧‧ rear end face

25‧‧‧First qi space

26‧‧‧Second air supply space

27‧‧‧ Third qi space

28‧‧‧ Fourth qi space

3‧‧‧Exhaust device

31‧‧‧ protective box

33‧‧‧ intake end

34‧‧‧Exhaust end

4‧‧‧Long left vertical board

41‧‧‧First Drainage Department

5‧‧‧Long-shaped right vertical board

51‧‧‧Second diversion

6‧‧‧ Back panel

Claims (3)

A separate range hood includes: a suction hood provided with a collecting box, one end of the collecting box is provided with an inlet end for pumping, and the inlet end is connected with a long tube, and the bottom of the collecting box is provided The air inlet of the narrow and open opening is communicated with the inlet end, and the front end of the elongated suction port is provided with a narrow and downwardly facing blowing groove, the elongated blowing groove and an air blowing device Connected to blow air downward; and the elongated suction port and the elongated blowing groove are disposed between the front end surface and the rear end surface of the suction hood, and parallel to the front end surface and the rear end surface; An intake end and an outlet end are connected, the intake end is connected to one end of the long tube; a rear plate is fixed under the rear end surface of the suction cover; and an elongated left vertical plate is fixed to the suction cover Below the left side; and an elongated right vertical plate, fixed below the right side of the suction hood. The split range hood according to claim 1, wherein the air extracting device is an electric driven blower. The separate range hood according to claim 1 or 2, further comprising a protective box, wherein the protective box forms an accommodating space for accommodating and positioning the air extracting device.