Oil smoke purification fan and oil collecting structure thereof

Abstract

The utility model discloses an oil smoke purification fan and an oil collecting structure thereof, the oil collecting structure is arranged at the bottom of an air chamber of the oil smoke purification fan and comprises an inverted rectangular pyramid funnel formed by sequentially connecting a first surface, a second surface, a third surface and a fourth surface, and a funnel hole is arranged at the bottom of the inverted rectangular pyramid funnel. According to the utility model, the area of a runner surface through which oil fume waste oil flows is greatly reduced, so that the recovery speed of the oil fume waste oil is increased, and the problem that an overlapped layer is easily formed on the runner surface is solved; meanwhile, four edges of the inverted-rectangular-pyramid-shaped funnel have a flow guide effect on the oil fume waste oil, so that the oil fume waste oil is recovered more smoothly, and the recovery speed of the oil fume waste oil is further increased; only the funnel hole is formed in the bottom of the inverted-rectangular-pyramid-shaped funnel, no plane exists, and the problem of accumulation around the funnel hole is solved. Compared with a traditional centrifugal lampblack purification fan with a V-shaped bottom, the lampblack waste oil recovery effect is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil fume purification equipment, and in particular relates to an oil fume purification fan and an oil collecting structure thereof. Background Art

[0002] With the continuous development of China's economic construction, green environmental protection requirements are constantly increasing, and the waste oil recovery effect of existing fume purification fans needs to be further improved.

[0003] like Figure 1 and Figure 2 As shown, the conventional oil fume purification fan (see the Chinese patent document with the authorization announcement number CN104019483B) has a ﹀-shaped bottom 11, and a left oil outlet 14 and a right oil outlet 15 are axially opened at the lowest point of the ﹀-shaped bottom 11. When the waste oil fume flows out from the left oil outlet 14 and the right oil outlet 15, the two inclined surfaces constituting the ﹀-shaped bottom 11 become two flow channel surfaces for recovering the waste oil fume; since the area of ​​the flow channel surface through which the waste oil fume flows is large, the recovery speed of the waste oil fume slows down, and after a period of use, it is easy to form a superimposed layer on the flow channel surface that hinders the flow of the waste oil fume, especially easy to form accumulation at the lowest point of the ﹀-shaped bottom 11, resulting in a blocked recovery channel for the waste oil fume, affecting the recovery effect of the waste oil fume. Utility Model Content

[0004] The utility model aims to provide an oil fume purification fan and its oil collection structure, so as to solve the problem that the traditional oil fume purification fan adopts a ﹀-shaped bottom, which is easy to form a superimposed layer on the flow channel surface and form accumulation at the lowest point of the ﹀-shaped bottom, thus affecting the recovery effect of oil fume waste oil.

[0005] The utility model solves the above technical problems through the following technical solutions: an oil collection structure is arranged at the bottom of the wind chamber of the oil fume purification fan, and the oil collection structure includes an inverted quadrangular pyramid funnel composed of a first surface, a second surface, a third surface and a fourth surface connected in sequence, and a funnel hole is arranged at the bottom of the inverted quadrangular pyramid funnel.

[0006] Furthermore, the funnel hole is circular or elliptical, and its hole diameter is 10 mm to 20 mm.

[0007] Furthermore, the funnel hole has a hole edge, and the height of the hole edge is 1mm to 5mm.

[0008] Furthermore, a baffle is axially provided inside the inverted quadrangular pyramid funnel, the upper end of the baffle extends to the top of the volute tongue, the lower end of the baffle extends to the bottom of the funnel hole, and the axial width of each part of the baffle is consistent with the axial width of the structure at the corresponding position.

[0009] Furthermore, the first surface, the second surface, the third surface and the fourth surface of the inverted quadrangular pyramid funnel are smoothly connected to the casing of the oil fume purification fan.

[0010] Furthermore, an oil collecting box hanger is radially or axially arranged outside the oil collecting structure.

[0011] Furthermore, when the oil fume purification fan is a centrifugal oil fume purification fan, the inverted quadrangular pyramid funnel is an asymmetric structure, and the first side corresponds to the volute tongue bulging side of the centrifugal oil fume purification fan, and the third side corresponds to the non-volute tongue bulging side of the centrifugal oil fume purification fan, and the length of the first side is greater than the length of the third side.

[0012] Furthermore, the highest axial vertical surface in the volute tongue of the centrifugal oil fume purification fan coincides with the baffle in the inverted quadrangular pyramid funnel.

[0013] Based on the same concept, the utility model also provides an oil fume purification fan, wherein the oil collecting structure as described above is provided at the bottom of the casing of the oil fume purification fan, and each wind chamber corresponds to one of the oil collecting structures.

[0014] Beneficial Effects

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] The oil collection structure provided by the utility model greatly reduces the flow channel area through which the oil fume waste oil flows, thereby increasing the recovery speed of the oil fume waste oil and improving the problem of the formation of superimposed layers on the flow channel surface; at the same time, the four edges of the inverted quadrangular pyramid funnel have a guiding effect on the oil fume waste oil, making the recovery of the oil fume waste oil smoother and further increasing the recovery speed of the oil fume waste oil; there is only a funnel hole at the bottom of the inverted quadrangular pyramid funnel, and no plane exists, which avoids the problem of accumulation around the funnel hole. Compared with the ﹀-shaped bottom of the traditional centrifugal oil fume purification fan, the utility model greatly improves the recovery effect of the oil fume waste oil.

[0017] The utility model arranges a baffle in the inverted quadrangular pyramid funnel, and the baffle extends to the bottom of the funnel hole, which can effectively prevent the airflows flowing through the front and rear ends of the volute tongue from interfering with each other at the funnel hole, so that the recovered waste oil can flow into the oil collection box more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of a traditional oil fume purification fan in the background technology of the utility model;

[0020] Figure 2 It is a top view, a front view and a side view of the bottom of the ﹀-shaped structure in the background technology of the present utility model;

[0021] Figure 3 It is a top view, a front view and a side view of the oil collecting structure in the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the baffle structure in the embodiment of the utility model;

[0023] Figure 5 It is a positional relationship diagram between the oil collecting structure, the volute tongue and the baffle in the embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of an oil collecting structure provided at the bottom of a centrifugal oil fume purification fan in an embodiment of the utility model;

[0025] Figure 7 It is a partial cross-sectional schematic diagram of a centrifugal oil fume purification fan in an embodiment of the utility model.

[0026] Explanation of the reference numerals: 100 - inverted quadrangular pyramid funnel, 101 - first surface, 102 - second surface, 103 - third surface, 104 - fourth surface, 105 - funnel hole, 106 - baffle, 1061 - bottom protrusion, 1062 - middle inclined surface, 1063 - upper part, 1064 - upper bottom surface, 1065 - upper top surface, 200 - volute tongue, 201 - volute tongue bulge, 300 - air chamber, 301 - left air chamber, 302 - right air chamber, 400 - double-axle motor, 500 - casing, 601 - left impeller, 602 - right impeller, 700 - middle partition of casing, 800 - oil collection box bracket, 900 - soft filler. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution in the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0029] In order to solve the problem that the traditional oil fume purification fan adopts a ﹀-shaped bottom, which is easy to form an overlapping layer on the flow channel surface and an accumulation at the lowest point of the ﹀-shaped bottom, thereby affecting the recovery effect of oil fume waste oil, the utility model improves the ﹀-shaped bottom of the oil fume purification fan (for example, a centrifugal oil fume purification fan disclosed in the Chinese patent document with authorization announcement number CN104019483B), and adopts an inverted quadrangular pyramid bottom to replace the ﹀-shaped bottom, thereby improving the recovery effect of oil fume waste oil.

[0030] The oil collecting structure provided in this embodiment is arranged at the bottom of the air chamber 300 of the oil fume purification fan. Figure 3 As shown, the oil collecting structure includes an inverted quadrangular pyramid funnel 100 which is formed by sequentially connecting a first surface 101 , a second surface 102 , a third surface 103 and a fourth surface 104 , and a funnel hole 105 is provided at the bottom of the inverted quadrangular pyramid funnel 100 .

[0031] Compared with the left side of the ﹀-shaped bottom of the centrifugal oil fume purification fan, the area of ​​the first surface 101 of the inverted tetrahedral pyramid funnel 100 is reduced by about 1 / 2; compared with the right side of the ﹀-shaped bottom of the centrifugal oil fume purification fan, the area of ​​the third surface 103 of the inverted tetrahedral pyramid funnel 100 is reduced by about 1 / 2. Therefore, the oil collection structure of the utility model greatly reduces the flow channel surface area through which the oil fume waste oil flows, thereby increasing the flow speed of the oil fume waste oil and improving the problem of the oil fume waste oil forming a superimposed layer on the flow channel surface; at the same time, the four edges of the inverted tetrahedral pyramid funnel 100 directly lead to the funnel hole 105, which has a guiding effect on the oil fume waste oil flowing into the funnel hole 105, further improving the recovery efficiency and recovery effect of the oil fume waste oil. There is no plane around the funnel hole 105, so no accumulation will be formed around the funnel hole 105, making the recovery channel of the oil fume waste oil smoother, further improving the recovery effect of the oil fume waste oil.

[0032] In a specific implementation of the present invention, the funnel hole 105 is circular or elliptical, and its hole diameter is 10 mm to 20 mm; the funnel hole 105 has a hole edge, and the height of the hole edge is 1 mm to 5 mm.

[0033] In a specific implementation of the present invention, the first surface 101 and the third surface 103 may be inclined planes or curved surfaces.

[0034] In a specific embodiment of the present invention, a baffle 106 is provided on the axial center line of the funnel hole 105 of the inverted quadrangular pyramid funnel 100, the upper end of the baffle 106 extends to the inner top of the volute tongue 200, and the lower end extends to the bottom of the funnel hole 105, and the axial width of each part of the baffle 106 is consistent with the axial width of the structure at the corresponding position, such as Figure 4 As shown. Figure 4It can be seen that the bottom protrusion 1061 of the baffle 106 is inserted into the funnel hole 105, and the axial width of the bottom protrusion 1061 is consistent with the axial width of the funnel hole 105 (that is, the bottom protrusion 1061 is in contact with the funnel hole), and the height of the bottom protrusion 1061 is consistent with the hole height of the funnel hole 105; the middle inclined surface 1062 of the baffle 106 is in contact with the second surface 102 and the fourth surface 104 of the inverted quadrangular pyramid funnel 100, and the middle inclined surface 1062 is different The axial width of the position is consistent with the distance between the corresponding positions of the second surface 102 and the fourth surface 104; the upper portion 1063 and the upper bottom surface 1064 of the baffle 106 are in contact with and adapted to the corresponding air chamber wall; the inner top of the volute tongue 200 is provided with an airtight soft filler 900 along the axial direction, and the bottom surface of the soft filler 900 is in close contact with the upper top surface 1065 of the baffle 106, and each contact surface has sealing properties, so that the two sides of the baffle 106 are separated to avoid mutual interference. The volute tongue 200 is a detachable volute tongue.

[0035] In a specific embodiment of the present invention, the first surface 101, the second surface 102, the third surface 103 and the fourth surface 104 of the inverted quadrangular pyramid funnel 100 are smoothly connected to the housing 500 of the oil fume purification fan.

[0036] In a specific embodiment of the present invention, when the oil fume purification fan is a centrifugal oil fume purification fan, the inverted quadrangular pyramid funnel 100 is an asymmetric structure, and its top surface is rectangular. The first surface 101 corresponds to the volute tongue bulge 201 side of the centrifugal oil fume purification fan, and the third surface 103 corresponds to the non-volute tongue bulge side of the centrifugal oil fume purification fan. The length of the first surface 101 is greater than the length of the third surface 103. Figure 3 , Figure 5 and Figure 6 shown.

[0037] In a specific embodiment of the present invention, the highest axial vertical surface in the volute tongue 200 of the centrifugal oil fume purification fan coincides with the baffle 106 in the inverted quadrangular pyramid funnel 100, that is, the baffle 106 is arranged at the highest axial vertical surface in the volute tongue 200, such as Figure 5 and Figure 6 .

[0038] In a specific embodiment of the present invention, an oil collecting box hanger 800 is provided radially or axially outside the oil collecting structure, such as Figure 7 shown.

[0039] In a specific embodiment of the present invention, the oil collecting structure can be an explicit structure or an implicit structure. The implicit structure means that the oil collecting structure is arranged in the casing 1 and the oil collecting structure is not visible from the outside; the explicit structure means that the oil collecting structure can be seen from the outside.

[0040] For the centrifugal oil fume purification fan with the left air chamber 301 and the right air chamber 302, the oil collecting structure of the utility model is provided at the bottom of the left air chamber 301 and the right air chamber 302. The upper end of the baffle 106 of the oil collecting structure at the bottom of the left air chamber 301 extends to the top of the left volute tongue, the lower end of the baffle 106 extends to the bottom of the funnel hole 105, and the axial width of each part of the baffle 106 is consistent with the axial width of the structure at the corresponding position; the upper end of the baffle 106 of the oil collecting structure at the bottom of the right air chamber 302 extends to the top of the right volute tongue, the lower end of the baffle 106 extends to the bottom of the funnel hole 105, and the axial width of each part of the baffle 106 is consistent with the axial width of the structure at the corresponding position. The first surface 101 of the oil collecting structure at the bottom of the left air chamber 301 corresponds to the left volute tongue bulging side of the centrifugal oil fume purification fan, and the third surface 103 corresponds to the non-left volute tongue bulging side of the centrifugal oil fume purification fan; the first surface 101 of the oil collecting structure at the bottom of the right air chamber 302 corresponds to the right volute tongue bulging side of the centrifugal oil fume purification fan, and the third surface 103 corresponds to the non-right volute tongue bulging side of the centrifugal oil fume purification fan. The highest axial vertical surface in the left volute tongue of the centrifugal oil fume purification fan coincides with the baffle 106 in the inverted quadrangular pyramid funnel 100 of the oil collecting structure of the left air chamber 301, that is, the baffle 106 is set at the highest axial vertical surface in the left volute tongue; the highest axial vertical surface in the right volute tongue of the centrifugal oil fume purification fan coincides with the baffle 106 in the inverted quadrangular pyramid funnel 100 of the oil collecting structure of the right air chamber 302, that is, the baffle 106 is set at the highest axial vertical surface in the right volute tongue.

[0041] The embodiment of the utility model further provides an oil fume purification fan, wherein the oil collecting structure described in the embodiment of the present application is provided at the bottom of the casing 500 of the oil fume purification fan, and each wind chamber 300 corresponds to an oil collecting structure.

[0042] For the centrifugal oil fume purification fan having the left air chamber 301 and the right air chamber 302 , an oil collecting structure is provided at the bottom of the left air chamber 301 , and an oil collecting structure is provided at the bottom of the right air chamber 302 .

[0043] The above disclosure is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or modifications within the technical scope disclosed in the utility model, which should be included in the protection scope of the utility model.

Claims

1. An oil collecting structure, arranged at the bottom of the air chamber of an oil fume purification fan, characterized in that: The oil collecting structure comprises an inverted quadrangular pyramid funnel which is formed by sequentially connecting a first surface, a second surface, a third surface and a fourth surface, and a funnel hole is arranged at the bottom of the inverted quadrangular pyramid funnel.

2. The oil collecting structure according to claim 1, characterized in that: The funnel hole is circular or elliptical, and its hole diameter is 10mm to 20mm.

3. The oil collecting structure according to claim 1, characterized in that: The funnel hole has a hole edge, and the height of the hole edge is 1mm to 5mm.

4. The oil collecting structure according to claim 1, characterized in that: A baffle is axially arranged in the inverted quadrangular pyramid funnel, the upper end of the baffle extends to the top of the volute tongue, the lower end of the baffle extends to the bottom of the funnel hole, and the axial width of each part of the baffle is consistent with the axial width of the structure at the corresponding position.

5. The oil collecting structure according to claim 1, characterized in that: The first surface, the second surface, the third surface and the fourth surface of the inverted quadrangular pyramid funnel are smoothly connected to the casing of the oil fume purification fan.

6. The oil collecting structure according to claim 1, characterized in that: An oil collecting box hanger is radially or axially arranged outside the oil collecting structure.

7. The oil collecting structure according to any one of claims 1 to 6, characterized in that: When the oil fume purification fan is a centrifugal oil fume purification fan, the inverted quadrangular pyramid funnel is an asymmetric structure, and the first side corresponds to the volute tongue bulging side of the centrifugal oil fume purification fan, and the third side corresponds to the non-volute tongue bulging side of the centrifugal oil fume purification fan, and the length of the first side is greater than the length of the third side.

8. The oil collecting structure according to claim 7, characterized in that: The highest axial vertical surface in the volute tongue of the centrifugal oil fume purification fan coincides with the baffle in the inverted quadrangular pyramid funnel.

9. A fume purification fan, characterized in that: An oil collecting structure as claimed in any one of claims 1 to 8 is provided at the bottom of the casing of the oil fume purification fan, and each wind chamber corresponds to one oil collecting structure.

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