CN212838595U

CN212838595U - High-efficiency wall-mounted boiler volute

Info

Publication number: CN212838595U
Application number: CN202021572642.6U
Authority: CN
Inventors: 罗丹; 马福全; 邓勇
Original assignee: Jiangmen Lusituo Motor Electric Appliance Co ltd
Current assignee: Jiangmen Lusituo Motor Electric Appliance Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-30
Anticipated expiration: 2030-07-31

Abstract

The utility model provides a high-efficient hanging stove spiral case, include: the motor comprises a bottom shell, a stator and a rotor, wherein one surface of the bottom shell is used for fixing the stator and the rotor of the motor, and a semi-cylindrical first air outlet is formed in the bottom shell; the air inlet is used for communicating the air exhaust cavity with a combustion chamber of the wall-mounted furnace; the air gathering ring is arranged at the air inlet and used for preventing the gas in the exhaust cavity from leaking from the air inlet. Through the utility model discloses can ensure that the gas flow of the wind pressure pipe of flowing through lasts stably, avoid the hanging stove easily to flame out.

Description

High-efficiency wall-mounted boiler volute

Technical Field

The utility model relates to the technical field of household appliances, in particular to high-efficient hanging stove spiral case.

Background

With the vigorous promotion of the policy of changing coal into gas in China, people have greater and greater requirements on wall-mounted furnaces, the performance requirements on the wall-mounted furnaces are higher and higher, and the problems of the wall-mounted furnaces also occur. The wall-mounted furnace fan is used for discharging gas in a combustion chamber of the wall-mounted furnace outdoors, and meanwhile certain negative pressure is formed in the combustion chamber to prevent toxic gas in the combustion chamber from leaking indoors and threatening life safety of users. The wind wheel of hanging stove fan generally installs in the spiral case the inside, and the air intake and the combustion chamber of spiral case intercommunication, when wind wheel rotates, the gaseous effect that receives the centrifugal force in the spiral case is patted on the inner wall of spiral case circumference, forms high-pressure gas at the inner wall surface of spiral case circumference, and high-pressure gas passes through the air outlet of spiral case and discharges outdoors with the blast pipe of air outlet intercommunication, simultaneously, forms certain negative pressure near the axle center of wind wheel of scraping, makes the gaseous direction of the combustion chamber toward the spiral case shift. Be provided with the venturi that is used for testing gas flow in the air outlet of spiral case, venturi is connected and can control the break-make of wind pressure switch with the wind pressure switch of hanging stove, and the control circuit of hanging stove judges whether air outlet department has gas flowing through the break-make that detects the wind pressure switch, and when the gas of air outlet department stopped flowing, control circuit will control the hanging stove and flame out, avoids gas to gather and leads to the combustion chamber in the combustion chamber atmospheric pressure too high. However, the power of the wall-mounted boiler fan is limited, when the length of the exhaust pipe used by a user is too long, and the air pressure at the outlet of the exhaust pipe is higher than the high air pressure generated by the wall-mounted boiler fan, the wall-mounted boiler fan is difficult to drive air to flow, so that the wall-mounted boiler is suddenly extinguished, and the normal use of the user is affected. In addition, in order to facilitate the maintenance of the fan of the wall-mounted furnace, the volute and the combustion chamber of the wall-mounted furnace are generally connected in a detachable mode, and high-pressure gas in the volute easily escapes from the air inlet of the volute, so that the flow velocity of the gas flowing through the venturi tube is reduced, and when the gas flow velocity is too low, the wind pressure switch triggers the control circuit to enable the wall-mounted furnace to be flamed out, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a high-efficient hanging stove spiral case can reduce gaseous air intake from the spiral case and leak, strengthens the interior high-pressure gas's of spiral case pressure, avoids the wind pressure switch to be triggered by the mistake.

According to the utility model discloses high-efficient hanging stove spiral case, include:

the motor comprises a bottom shell, a stator and a rotor, wherein one surface of the bottom shell is used for fixing the stator and the rotor of the motor, and a semi-cylindrical first air outlet is formed in the bottom shell;

the air inlet is used for communicating the air exhaust cavity with a combustion chamber of the wall-mounted furnace;

the air gathering ring is arranged at the air inlet and used for preventing the gas in the exhaust cavity from leaking from the air inlet.

According to the utility model discloses high-efficient hanging stove spiral case has following beneficial effect at least:

the high-efficient hanging stove spiral case of this embodiment communicates with the combustion chamber of hanging stove, when scraping the wind wheel and rotating, and the gas in the combustion chamber enters into the exhaust intracavity from the air intake to discharge to outdoor from the wind-pressure pipe. Be provided with in air inlet department and gather the wind ring, when the high-pressure gas that upwards forms flows to air inlet department in the exhaust chamber, gather the flow direction that the wind ring can change gas, make the gas that flows to the air intake from the exhaust intracavity wall return to the exhaust intracavity, thereby avoid the gas that exhaust intracavity week upwards to leak from the air intake, improve the gas pressure near the inner wall in exhaust chamber week, ensure that the gas flow who flows through venturi lasts stably, avoid the wind pressure switch to be triggered and lead to hanging stove easily to put out fire, effectively improve user experience.

According to some embodiments of the utility model, the drain pan is close to be provided with the first connecting piece of a plurality of in week of face-piece one side, the face-piece is close to be provided with a plurality of second connecting piece in week of drain pan one side, the drain pan with the face-piece passes through first connecting piece with the second connecting piece combines.

According to some embodiments of the present invention, the first connecting member includes a first connecting plate and a first connecting hole provided in the first connecting plate, the second connecting member includes a second connecting plate and a second connecting hole provided in the second connecting plate, the first connecting plate and the second connecting plate pass through screwed connection.

According to some embodiments of the utility model, the face-piece is close to be provided with a plurality of third connecting plate in the week of air intake one side, be provided with the third connecting hole on the third connecting plate, the third connecting plate be used for with the face-piece is fixed at the combustion chamber accent of hanging stove.

According to the utility model discloses a some embodiments, be provided with venturi in the wind pressure pipe, venturi with the coaxial setting of wind pressure pipe, venturi is fixed in through the connecting pipe the inside of wind pressure pipe, the connecting pipe is used for the intercommunication the wind pressure switch of venturi and hanging stove.

According to some embodiments of the utility model, gather wind ring and include outer lane and inner circle, the outer lane with the face-piece is connected, the diameter of outer lane is greater than the diameter of inner circle just the outer lane with the inner circle is not in the coplanar.

According to some embodiments of the utility model, the outer lane with one side that the face-piece was provided with the air intake is in the coplanar, the inner circle with the distance of drain pan is less than the outer lane with the distance of drain pan.

According to some embodiments of the utility model, the inner circle with the distance of the one side that the face-piece was provided with the air intake is 7.8 millimeters, the diameter of inner circle is 72 millimeters.

According to some embodiments of the invention, the outer ring and the inner ring are connected by an arc-shaped transition surface with a radius of 5.5 mm.

According to the utility model discloses a some embodiments, the thickness of face-piece is 2 millimeters, the thickness of outer lane is 2 millimeters, the thickness of inner circle is 1 millimeter, the thickness of arc transition face certainly the outer lane to the inner circle steadilys decrease.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a front shell according to an embodiment of the present invention;

fig. 2 is a schematic view of a bottom case according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a panel shell according to an embodiment of the present invention;

fig. 4 is a schematic view of a bottom case according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, if there are first, second and third descriptions, they are only used for distinguishing technical features, but they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The high-efficiency wall-hanging stove spiral case provided by the embodiment of the invention is described in detail below with reference to the attached drawings.

Referring to fig. 1 and 2, an embodiment of the present invention provides a high efficiency wall-hanging stove volute, which includes a bottom shell 100, a face shell 200 and a wind collecting ring 300, wherein the bottom shell 100 and the face shell 200 together form a volute-shaped exhaust cavity 400. Specifically, six first connection plates 110 are uniformly arranged in the circumferential direction of the bottom case 100 on the side close to the face case 200, and first connection holes 111 are arranged on the first connection plates 110; six second connection plates 210 are disposed on the periphery of the side of the face case 200 close to the bottom case 100, and second connection holes 211 are disposed on the second connection plates 210. The corresponding first and

second connection plates

110 and 210 are connected together by the first and

second connection holes

111 and 211 and the fixing screws, so that the bottom case 100 and the face case 200 form the scroll-shaped exhaust chamber 400. The bottom chassis 100 and the face housing 200 are connected by the first connecting plate 110 and the second connecting plate 210, so that the bottom chassis 100 and the face housing 200 are easily separated, the exhaust chamber 400 and the wind wheel 500 are conveniently cleaned, and foreign matters affecting the formation of wind pressure in the exhaust chamber 400 are conveniently removed.

One side of the bottom case 100, which is away from the exhaust cavity 400, is used to fix a stator and a rotor of the motor, a rotating shaft of the rotor passes through the bottom case 100 through a bearing arranged on the bottom case 100 and extends to the inside of the exhaust cavity 400, and the rotating shaft drives the wind wheel 500 arranged inside the exhaust cavity 400 to rotate. The wind scraping wheel 500 is of a cylindrical cup-shaped structure, the wind scraping wheel 500 and the exhaust cavity 400 are coaxially arranged, fan blades which are parallel to the axial direction of the wind scraping wheel 500 are arranged on the side wall of the wind scraping wheel 500, gaps are formed among the fan blades, when the wind scraping wheel 500 rotates, the fan blades flap air inside the exhaust cavity 400, the air in the exhaust cavity 400 flows to the circumferential direction of the exhaust cavity 400 under the action of centrifugal force, and high-pressure air is formed near the circumferential inner wall of the exhaust cavity 400. The bottom shell 100 is provided with a first semi-cylindrical air outlet 120, the face shell 200 is provided with a second semi-cylindrical air outlet 220, the first air outlet 120 and the second air outlet 220 are connected to form a cylindrical air pressure pipe 600, the air pressure pipe 600 is communicated with an exhaust pipe, and high-pressure air in the exhaust cavity 400 is exhausted to the outside through the air pressure pipe 600 and the exhaust pipe. An air inlet 230 is arranged on one side of the face shell 200 far away from the bottom shell 100, the air inlet 230 is communicated with a combustion chamber of the wall-mounted stove, when the wind scraping wheel 500 rotates, low pressure is formed near the axis of the wind scraping wheel 500, high pressure is generated during combustion of gas in the combustion chamber, a pressure difference is formed near the axis of the combustion chamber and the wind scraping wheel 500, and gas in the combustion chamber enters the exhaust cavity 400 through the air inlet 230. Specifically, three third connecting plates 240 are circumferentially arranged on one side of the face shell 200 close to the air inlet 230, third connecting holes 241 are formed in the third connecting plates 240, the face shell 200 is fixed on the outer wall of the combustion chamber through the third connecting holes 241 and connecting screws, the air inlet 230 is communicated with the cavity opening of the combustion chamber, and air in the combustion chamber enters the exhaust cavity 400 through the air inlet 230. Through the third connecting plate 240 and the third connecting hole 241, the surface of the face shell 200, on which the air inlet 230 is formed, is easily connected to the combustion chamber, so that the exhaust cavity 400 and the wind wheel 500 are conveniently cleaned, and the wall-mounted furnace fan is conveniently maintained.

In order to prevent the gas entering the exhaust chamber 400 from leaking from the inlet port 230 and reduce the pressure in the wind pressure pipe 600, a wind collecting ring 300 is provided in the circumferential direction of the inlet port 230. The wind gathering ring 300 comprises an outer ring 310 and an inner ring 320, the outer ring 310 is connected with the face shell 200 and is in the same plane, and the diameter of the outer ring 310 is larger than that of the inner ring 320. Outer ring 310 is connected to inner ring 320 through arc-shaped transition surface 330, and the distance between inner ring 320 and bottom case 100 is smaller than the distance between outer ring 310 and bottom case 100. Therefore, the wind gathering ring 300 is bent from the wind inlet 230 to the inside of the exhaust cavity 400 to play a role in changing the airflow path, when the gas in the combustion chamber enters the exhaust cavity 400 from the wind inlet 230, the gas flows towards the circumferential inner wall of the exhaust cavity 400 under the action of the wind wheel 500, high pressure is formed near the circumferential inner wall of the exhaust cavity 400, and when the gas flows towards the direction of the wind inlet 230 under the action of the high pressure, the gas is limited in the exhaust cavity 400 by the wind gathering ring 300, so that the high-pressure gas can be forced to flow towards the direction of the wind pressure pipe 600, and the gas is prevented from leaking from the wind inlet 230 to cause the reduction of the air pressure near the circumferential inner wall of the exhaust cavity 400. Gather wind ring 300 through this embodiment and can make from the inside gas that flows to air intake 230 of exhaust chamber 400 return to exhaust chamber 400 in, prevent that the gas in the exhaust chamber 400 from leaking from air intake 230, improve the near gas pressure of exhaust chamber 400 circumference inner wall, avoid because the wind pressure switch that the blast pipe design is unreasonable or external atmospheric pressure changes too big and lead to frequently triggered and hanging stove easily flame-out, can effectively improve user experience.

Further, referring to fig. 2 and 3, in some embodiments of the present invention, the diameter of the inner ring 320 is 72 mm, the radius of the arc transition surface 330 is 5.5 mm, the outer ring 310 and the face of the face shell 200 where the air inlet 230 is disposed are in the same plane, the distance between the inner ring 320 and the face of the face shell 200 where the air inlet 230 is disposed is 7.8 mm, the thickness of the face shell 200 is 2 mm, the thickness of the outer ring 310 is 2 mm, the thickness of the inner ring 320 is 1 mm, and the thickness of the arc transition surface 330 decreases from the outer ring 310 to the inner ring 320. Through the size design of the face shell 200 and the wind gathering ring 300 of the embodiment, the exhaust cavity 400 can be suitable for most wind scraping wheels 500 on the market, and the inner ring 320 of the wind gathering ring 300 is close to the wind blades of the wind scraping wheels 500 and leaves a gap, so that the air is not interfered with each other, and the air can be effectively prevented from escaping from the air inlet 230. The thickness of the wind gathering ring 300 is gradually decreased from the outer ring 310 to the inner ring 320, and an acute-angle inclined plane is formed at the position, close to the fan blade of the wind scraping wheel 500, of the inner ring 320, so that the interference between the inner ring 320 and the wind scraping wheel 500 is effectively prevented, and the wind gathering ring is suitable for wind scraping wheels 500 of most models on the market.

Referring to fig. 4, another embodiment of the present invention provides a high efficiency wall-hanging stove volute, on the basis of the above embodiment, a venturi 610 is provided in the wind pressure pipe 600. The venturi 610 includes a converging section 611, a throat 612, and a diverging section 613, the venturi 610 being disposed coaxially with the wind pressure tube 600. A contraction section 611 of the venturi tube 610 is connected with a hard first connecting pipe 614, an opening of the contraction section 611 is formed in the first connecting pipe 614, the other end of the first connecting pipe 614 is connected with the wind pressure pipe 600, and the opening of the first connecting pipe 614 is formed in the outer side of the wind pressure pipe 600; a throat 612 of the venturi tube 610 is connected with a hard second connecting pipe 615, and an opening of the second connecting pipe 615 is arranged inside the throat 612, and the other end of the second connecting pipe 615 is connected with the wind pressure pipe 600, and an opening of the second connecting pipe 615 is arranged outside the wind pressure pipe 600; the venturi tube 610 is fixed inside the wind pressure pipe 600 by a first connection pipe 614 and a second connection pipe 615, the constricted section 611 communicates with the outside of the wind pressure pipe 600 by the first connection pipe 614, and the throat 612 communicates with the outside of the wind pressure pipe 600 by the second connection pipe 615. The high-efficiency wall-mounted furnace volute of the embodiment can be directly connected with the wind pressure switch of the wall-mounted furnace, the wind pressure switch is easy to install, and the wind pressure switch of the wall-mounted furnace judges whether the fan of the wall-mounted furnace normally operates by detecting the pressure difference between the first connecting pipe 614 and the second connecting pipe 615.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A high-efficient hanging stove spiral case which characterized in that includes:

2. The spiral casing of a high-efficiency wall-hanging stove as claimed in claim 1, wherein the bottom casing is provided with a plurality of first connecting members along the circumference of the side close to the face casing, the face casing is provided with a plurality of second connecting members along the circumference of the side close to the bottom casing, and the bottom casing and the face casing are combined through the first connecting members and the second connecting members.

3. The high efficiency wall hanging stove spiral casing of claim 2, wherein the first connecting piece comprises a first connecting plate and a first connecting hole provided on the first connecting plate, the second connecting piece comprises a second connecting plate and a second connecting hole provided on the second connecting plate, and the first connecting plate and the second connecting plate are connected by screws.

4. The high-efficiency wall-hanging stove spiral casing according to claim 1, wherein a plurality of third connecting plates are circumferentially arranged on one side of the face casing close to the air inlet, third connecting holes are arranged on the third connecting plates, and the third connecting plates are used for fixing the face casing on a combustion chamber opening of the wall-hanging stove.

5. A high-efficient hanging stove spiral case of claim 1, characterized in that be provided with venturi in the wind pressure pipe, venturi with the coaxial setting of wind pressure pipe, venturi is fixed in through the connecting pipe the inside of wind pressure pipe, the connecting pipe is used for the intercommunication the wind pressure switch of venturi and hanging stove.

6. The high efficiency wall hanging stove volute according to claim 1, wherein the wind gathering ring comprises an outer ring and an inner ring, the outer ring is connected with the face shell, the diameter of the outer ring is larger than the diameter of the inner ring, and the outer ring and the inner ring are not in the same plane.

7. The high efficiency wall hanging stove volute according to claim 6, wherein the outer ring is in the same plane as the side of the face shell where the air inlet is provided, and the distance between the inner ring and the bottom shell is smaller than the distance between the outer ring and the bottom shell.

8. The high efficiency wall hanging stove volute according to claim 7, wherein the inner ring is 7.8 mm from the side of the face shell where the air inlet is located, and the diameter of the inner ring is 72 mm.

9. The high efficiency wall hanging stove volute of claim 7, wherein the outer ring and the inner ring are connected by an arcuate transition surface having a radius of 5.5 mm.

10. The high efficiency wall hanging stove volute of claim 9, wherein the thickness of the face shell is 2 mm, the thickness of the outer ring is 2 mm, the thickness of the inner ring is 1 mm, and the thickness of the arc transition surface decreases from the outer ring to the inner ring.