Exhaust pipe for integrated stove

Abstract

An exhaust pipe for an integrated stove includes a perforated pipe, a transition pipe, a reversing pipe, a valve plate, an oil collecting device and a main air outlet pipe; an elliptical nozzle in the perforated pipe is connected to an inlet straight pipe, and overflow holes are distributed on the surface of the perforated pipe; the tail of the forward air outlet pipe and the tail of the reverse air outlet pipe in the reversing pipe are selectively connected to a common flue, the magnetic edge of the reversing pipe is a U-shaped structure that matches the size and shape of a groove opened at the intersection of the forward air outlet pipe and the reverse air outlet pipe, and the magnetic edge of the reversing pipe is fixed to the magnetic edge of the valve plate by magnetic force; in the valve plate, the valve plate body is semicircular, and the valve plate can be rotated on the valve plate slideway by turning the handle to adjust the valve plate direction to control the oil fume outflow direction; in the oil collecting device, waste oil flows into the oil tank at the outlet through the oil outlet pipe for collection. While reducing the resistance loss caused by the 90° strong bend of the integrated stove exhaust pipe, the present invention takes into account the problem of waste oil recovery and cleaning, thereby improving the oil fume absorption rate of the integrated stove.

Description

Technical Field

[0001] The invention belongs to the field of household integrated stoves, and particularly relates to an exhaust pipe for an integrated stove. Background Art

[0002] In the process of oil fume transportation of household integrated stoves, considering resistance reduction is of great significance to energy conservation and environmental protection. Since the resistance loss along the pipeline caused by the overall length of the pipeline is not easy to change, it is very important to reduce the local resistance loss in the pipeline.

[0003] At present, the air outlet pipes used in integrated stoves on the market are usually standard three-way fittings. When a reversing structure is added to the conventional 90° three-way pipe to meet the left and right air outlet requirements, according to the flow trajectory of the oil smoke, the role of the three-way pipe here can be regarded as a 90° elbow, and its local resistance coefficient is about ζ 1.5. High and unreasonable local resistance loss will lead to oil smoke accumulation and increased air flow viscosity, which will affect the oil smoke absorption rate of the integrated stove. At the same time, most of the oil stains accumulate at the air outlet pipe, which will also affect the oil smoke absorption rate of the integrated stove.

[0004] Therefore, in order to reduce the local resistance loss of the integrated stove, it is necessary to make certain improvements to the exhaust pipe structure of the integrated stove. Summary of the invention

[0005] In order to overcome the shortcomings of the traditional 90° strong bend reversing solution of integrated stoves, the present invention provides an exhaust pipe for an integrated stove, which can effectively reduce local resistance loss through the improvement of the outlet pipe and the comprehensive use of valve plates, thereby providing a solution to the problem.

[0006] The technical solution adopted by the present invention is:

[0007] An exhaust pipe for an integrated stove, comprising a perforated pipe, a transition pipe, a reversing pipe, a valve sheet, an oil collecting device and a main air outlet pipe;

[0008] The perforated pipe includes a straight pipe section, an overflow hole and an elliptical nozzle, the inlet straight pipe is a circular pipe structure, the elliptical nozzle is connected to the inlet straight pipe, and the overflow holes are distributed on the surface of the straight pipe section and the elliptical nozzle;

[0009] The transition pipe comprises a casing and a connecting hole, and the transition pipe is composed of two casings connected by bolts;

[0010] The reversing pipe includes a valve slide, a forward air outlet pipe, a reverse air outlet pipe and a reversing pipe magnetic edge. The valve slide is a slide rail structure at the top of the reversing pipe. The tail of the forward air outlet pipe and the tail of the reverse air outlet pipe have oil outlet holes and are connected to the main air outlet pipe. The main air outlet pipe is selectively connected to the public flue. The reversing pipe magnetic edge is a U-shaped structure that matches the size and shape of a groove opened at the intersection of the forward air outlet pipe and the reverse air outlet pipe.

[0011] The valve plate comprises a valve plate body, a rotating handle and a valve plate magnetic edge. The valve plate body is semicircular. The valve plate magnetic edge is made of magnetic material and fixed at both ends of the valve plate. The rotating handle can rotate the valve plate on the valve plate slideway.

[0012] The oil collecting device comprises an oil outlet pipe and an oil tank. The oil outlet pipe is a Y-shaped circular tube structure and one end of the oil outlet pipe is connected to the oil outlet hole at the tail of the positive air outlet pipe or the reverse air outlet pipe, one end of the oil outlet pipe is connected to the oil outlet hole of the main air outlet pipe, and the other end is an outlet. The oil tank is a drawer-shaped structure, and the width of the oil tank is slightly larger than the width of the outlets of the two oil outlet pipes.

[0013] In the present invention, the oil smoke comes out from the volute air outlet and passes through the perforated pipe, transition pipe and positive air outlet pipe or reverse air outlet pipe of the reversing pipe in sequence. The direction of the valve plate is adjusted by rotating the handle to control the oil smoke to enter the public flue through the positive air outlet pipe or reverse air outlet pipe of the reversing pipe.

[0014] Furthermore, the elliptical nozzle of the perforated tube has an elliptical tube head with less resistance to oil smoke and overflow holes arranged around the tube head, so that the resistance to oil smoke outflow is smaller and it is easier to pass through the 90° tube head.

[0015] Preferably, the short axis of the outer wall section of the elliptical nozzle is a, the long axis is b, and b=2a, the wall thickness of the elliptical nozzle is the same as that of the straight pipe section, and the elliptical nozzle is welded to the straight pipe section after being manufactured.

[0016] The perforated tube has a plurality of overflow holes with a diameter of 10 mm at intervals of 60 degrees on the surface, and the overflow holes are cylindrical through holes.

[0017] Furthermore, the magnetic edge of the reversing tube is a groove opened at the intersection of the positive air outlet pipe and the reverse air outlet pipe of the reversing tube and a magnetic material matching the size of the groove is fixed there. The magnetic edge of the reversing tube and the magnetic edge of the valve plate are attracted by magnetic force to fix the valve plate.

[0018] The valve plate magnetic edge is a magnetic material fixed at the ends of both sides of the valve plate body and matched with the end size. The valve plate magnetic edge and the reversing tube magnetic edge are attracted by magnetic force to fix the valve plate, and then the direction of the valve plate is adjusted by rotating the handle.

[0019] Preferably, one end inlet of the oil outlet pipe of the oil collection device is connected to the oil outlet hole at the tail of the positive air outlet pipe or the reverse air outlet pipe, and the other end inlet is connected to the oil outlet hole of the main air outlet pipe, so that the oil flows into the oil tank at the outlet for collection, which is convenient for regular cleaning.

[0020] The beneficial effects of the present invention are embodied in:

[0021] (1) The perforated pipe adopts an overflow hole structure. The overflow hole allows part of the oil smoke to flow out in advance through the surrounding cloth flow, so that the oil smoke flow has a freer direction, thus avoiding the excessive resistance loss caused by the 90° strong bend;

[0022] (2) The shape of the elliptical nozzle is closer to the streamline, reducing the loss caused by the oil smoke passing through the nozzle periphery;

[0023] (3) The transition pipe is made of two identical housings connected by bolts, which is easy to disassemble and adjust;

[0024] (4) The valve structure is used to adjust the oil smoke to enter the positive and negative air outlet pipes, avoiding the unnecessary trouble caused by the traditional disassembly and assembly of the air outlet pipes;

[0025] (5) The magnetic force is used to fix the magnetic edge of the reversing tube and the magnetic edge of the valve plate, making the positioning more accurate.

[0026] (6) An oil collection device is installed at the theoretical lowest point of the oil stain to collect the waste oil in the oil tank for easy regular cleaning, thereby reducing the resistance of the flue gas outflow and preventing most of the oil stains from accumulating in the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of an integrated stove in the embodiment;

[0028] Figure 2 Schematic diagram of the perforated tube structure in the embodiment;

[0029] Figure 3 2. It is a schematic diagram of the transition tube structure in the embodiment;

[0030] Figure 4 2. It is a schematic diagram of the relative position structure of the reversing tube and the perforated tube in the embodiment;

[0031] Figure 5 yes Figure 4 A partial enlarged view of part A;

[0032] Figure 6 Schematic diagram of the valve plate structure in the embodiment;

[0033] Figure 7 Schematic diagram of the structure of the oil collection device in the embodiment;

[0034] Explanation of the accompanying drawings: 1-perforated pipe, 11-straight pipe section, 12-overflow hole, 13-elliptical nozzle, 2-transition pipe, 21-cover, 22-connecting hole, 3-reversing pipe, 31-valve slide, 311-slide rail, 32-forward air outlet pipe, 33-reverse air outlet pipe, 331-oil outlet hole, 34-reversing pipe magnetic edge, 4-valve plate, 41-valve plate body, 42-rotating handle, 43-valve plate magnetic edge, 5-oil collecting device, 51-oil outlet pipe, 52-oil tank, 6-main air outlet pipe, A-enlarged view of a part of the reversing pipe, a-short axis of the outer wall cross section of the elliptical nozzle, b-long axis of the outer wall cross section of the elliptical nozzle. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 to Figure 7 , an exhaust pipe for an integrated stove, comprising a perforated pipe 1, a transition pipe 2, a reversing pipe 3, a valve plate 4, an oil collecting device 5 and a main air outlet pipe 6;

[0037] The perforated pipe 1 comprises a straight pipe section 11, an overflow hole 12 and an elliptical nozzle 13. The inlet straight pipe 11 is a circular tube structure. The elliptical nozzle 13 is connected to the inlet straight pipe 11. The overflow holes 12 are distributed on the surfaces of the straight pipe section 11 and the elliptical nozzle 13.

[0038] The transition pipe 2 includes a casing 21 and a connecting hole 22. The transition pipe 2 is composed of two casings 21 connected by bolts.

[0039] The reversing pipe 3 includes a valve slide 31, a forward air outlet pipe 32, a reverse air outlet pipe 33 and a reversing pipe magnetic edge 34. The valve slide 31 is a slide rail 311 structure at the top of the reversing pipe 3. The tail of the forward air outlet pipe 32 and the tail of the reverse air outlet pipe 33 have oil outlet holes 331 and are connected to the main air outlet pipe 6. The main air outlet pipe 6 is selectively connected to the public flue according to actual conditions. The reversing pipe magnetic edge 34 is a U-shaped structure that matches the size and shape of a groove opened at the intersection of the forward air outlet pipe 32 and the reverse air outlet pipe 33.

[0040] The valve plate 4 includes a valve plate body 41, a rotating handle 42 and a valve plate magnetic edge 43. The valve plate body 41 is semicircular. The valve plate magnetic edge 43 is a magnetic material fixed at both ends of the valve plate 4. The rotating handle 42 can rotate the valve plate 4 on the valve plate slideway.

[0041] The oil collecting device 5 includes an oil outlet pipe 51 and an oil tank 52. The oil outlet pipe 51 is a Y-shaped circular tube structure, one end of which is connected to the oil outlet hole 331 at the tail of the positive air outlet pipe 32 or the reverse air outlet pipe 33, one end of which is connected to the oil outlet hole of the main air outlet pipe 6, and the other end is an outlet. The oil tank 52 is a drawer-like structure, and the width of the oil tank 52 is slightly larger than the distance between the two oil outlet pipes 51.

[0042] The oil smoke flows out from the volute air outlet and passes through the perforated pipe 1, the transition pipe 2 and the forward air outlet pipe 32 or the reverse air outlet pipe 33 of the reversing pipe 3 in sequence. The direction of the valve plate 4 is adjusted by rotating the handle 42 to control the oil smoke to enter the public flue through the forward air outlet pipe 32 or the reverse air outlet pipe 33 of the reversing pipe.

[0043] Furthermore, the elliptical nozzle 13 of the perforated pipe 1 has an elliptical pipe head with less resistance to oil smoke and overflow holes 12 arranged around it, so that the resistance to oil smoke outflow is smaller and it is easier to pass through the 90° pipe head.

[0044] The short axis of the outer wall section of the elliptical nozzle 13 is a, the long axis is b, and b=2a, and the wall thickness of the elliptical nozzle 13 is the same as that of the straight pipe section 11. The elliptical nozzle 13 is welded to the straight pipe section 11 after being manufactured.

[0045] The perforated tube 1 has a plurality of overflow holes 12 with a diameter of 10 mm at intervals of 60 degrees on the surface, and the overflow holes 12 are cylindrical through holes.

[0046] Furthermore, the magnetic edge 34 of the reversing tube is a groove opened at the intersection of the positive air outlet pipe 32 and the reverse air outlet pipe 33 of the reversing tube 3 and a magnetic material matching the size of the groove is fixed there. The magnetic edge 34 of the reversing tube and the magnetic edge 43 of the valve plate fix the valve plate 4 through magnetic attraction.

[0047] The valve plate magnetic edge 43 is a magnetic material fixed at the ends of both sides of the valve plate body 41 and matched with the end size. The valve plate magnetic edge 43 and the reversing tube magnetic edge 34 fix the valve plate 4 through magnetic attraction, and then the direction of the valve plate 4 is adjusted by rotating the handle 42.

[0048] Preferably, one end inlet of the oil outlet pipe 51 of the oil collecting device 5 is connected to the oil outlet hole of the tail portion 331 of the positive air outlet pipe 32 or the reverse air outlet pipe 33, and the other end inlet is connected to the oil outlet hole of the main air outlet pipe 6, so that the oil flows into the oil tank 52 at the outlet for collection, which is convenient for regular cleaning.

[0049] The working process of the flocculant feed pipe for the horizontal screw centrifuge of this embodiment is as follows:

[0050] (1) The oil smoke flows out from the air outlet of the volute through the perforated pipe 1, with a part flowing out from the overflow hole 12 and the other part flowing out from the elliptical nozzle 13.

[0051] (2) Oil smoke enters transition pipe 2 from perforated pipe 1.

[0052] (3) The oil smoke enters the reversing pipe 3 from the transition pipe 2. The direction of the valve plate 4 is adjusted by rotating the handle 42 to control the oil smoke to enter the public flue through the positive air outlet pipe 32 or the reverse air outlet pipe 33 of the reversing pipe 3.

[0053] (4) The oil flows into the oil tank 52 through the oil collecting device 5 and is collected, while the smoke enters the public flue through the main air outlet pipe 6 and is discharged.

Claims

1. An exhaust pipe for an integrated stove, characterized in that: The exhaust pipe includes a perforated pipe, a transition pipe, a reversing pipe, a valve plate, an oil collecting device and a main air outlet pipe; The perforated pipe comprises a straight pipe section, an overflow hole and an elliptical nozzle, wherein the straight pipe section is a circular tube structure, the elliptical nozzle is connected to the straight pipe section, and the overflow holes are distributed on the surfaces of the straight pipe section and the elliptical nozzle; The transition pipe comprises a casing and a connecting hole, and the transition pipe is composed of two casings connected by bolts; The reversing pipe includes a valve slide, a forward air outlet pipe, a reverse air outlet pipe and a reversing pipe magnetic edge. The valve slide is a slide rail structure at the top of the reversing pipe. The tail of the forward air outlet pipe and the tail of the reverse air outlet pipe have oil outlet holes and are connected to the main air outlet pipe. The main air outlet pipe is selectively connected to the public flue. The reversing pipe magnetic edge is a U-shaped structure that matches the size and shape of a groove opened at the intersection of the forward air outlet pipe and the reverse air outlet pipe. The valve plate comprises a valve plate body, a rotating handle and a valve plate magnetic edge. The valve plate body is semicircular. The valve plate magnetic edge is made of magnetic material and fixed at both ends of the valve plate. The rotating handle can rotate the valve plate on the valve plate slideway. The oil collecting device comprises an oil outlet pipe and an oil tank. The oil outlet pipe is a Y-shaped circular tube structure, one end of which is connected to the oil outlet hole at the tail of the forward air outlet pipe or the reverse air outlet pipe, one end of which is connected to the oil outlet hole of the main air outlet pipe, and the other end is an outlet. The oil tank is a drawer-shaped structure, and the width of the oil tank is greater than the width of the outlets of the two oil outlet pipes. The magnetic edge of the reversing tube is a groove formed at the intersection of the positive air outlet pipe and the reverse air outlet pipe of the reversing tube, and a magnetic material matching the size of the groove is fixed there. The magnetic edge of the reversing tube and the magnetic edge of the valve plate are attracted by magnetic force to fix the valve plate. The valve plate magnetic edge is a magnetic material fixed at the ends of both sides of the valve plate body and matched with the end size. The valve plate magnetic edge and the reversing tube magnetic edge are attracted by magnetic force to fix the valve plate, and then the direction of the valve plate is adjusted by rotating the handle.

2. The exhaust pipe for an integrated stove according to claim 1, characterized in that: The elliptical nozzle of the perforated pipe adopts an elliptical pipe head with smaller resistance to oil smoke and overflow holes arranged around it.

3. The exhaust pipe for an integrated stove according to claim 2, characterized in that: The short axis of the outer wall section of the elliptical nozzle is a, the long axis is b, and b=2a. The wall thickness of the elliptical nozzle is the same as that of the straight pipe section. The elliptical nozzle is welded to the straight pipe section after being manufactured.

4. The exhaust pipe for an integrated stove according to any one of claims 1 to 3, characterized in that: On the surface of the perforated tube, there are a number of overflow holes with a diameter of 10 mm at intervals of 60°, and the overflow holes are cylindrical through holes.

5. The exhaust pipe for an integrated stove according to any one of claims 1 to 3, characterized in that: In the oil collecting device, the inlet at one end of the oil outlet pipe is connected to the oil outlet hole at the tail of the positive outlet pipe or the reverse outlet pipe, and the inlet at the other end is connected to the oil outlet hole of the main outlet pipe, so that the oil flows into the oil tank at the outlet for collection.

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