Guide plate and oil mist collector having the same

Abstract

The present application provides a guide plate for an oil mist collector, comprising: a plate body, the plate body is arranged between the air inlet of the oil mist collector and the heat exchanger; a guide area is arranged on the plate body, the guide area corresponds to the position of the heat exchanger in the oil mist collector; a plurality of guide holes are arranged on the guide area; the guide area is used to uniformly transmit the gas entering the air inlet to the heat exchanger; the plate body is also provided with a liquid pipe installation hole and a gas pipe installation hole. According to the guide plate of the present application, the flow condition of oil and gas can be effectively improved, and the heat exchange efficiency of oil and gas can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of exhaust gas purification, and in particular relates to a guide plate and an oil mist collector having the same. Background Art

[0002] At present, condensation recovery technology is one of the important technologies for treating polluted gases. While treating exhaust gas, it can also recycle useful substances in the exhaust gas.

[0003] However, the condensing oil mist capture equipment in the prior art has the problems of poor heat exchange efficiency and low capture efficiency.

[0004] Therefore, how to provide a guide plate that can effectively improve the heat exchange efficiency and an oil mist collector having the guide plate has become an urgent problem that technicians in this field need to solve. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present application is to provide a guide plate and an oil mist collector having the guide plate, which can effectively improve the flow condition of oil and gas and enhance the heat exchange efficiency of oil and gas.

[0006] A guide plate for an oil mist trap comprises: a plate body, which is arranged between an air inlet of the oil mist trap and a heat exchanger; a guide area is arranged on the plate body, and the guide area corresponds to the position of the heat exchanger in the oil mist trap; a plurality of guide holes are arranged on the guide area; the guide area is used to uniformly transmit the gas entering from the air inlet to the heat exchanger; and a liquid pipe mounting hole and a gas pipe mounting hole are also arranged on the plate body.

[0007] Preferably, a positioning hole is further provided on the edge of the plate body; the positioning hole is provided on the surface of the plate body; the positioning hole is used to locate the installation position of the guide plate.

[0008] Preferably, the flow guide area is circular, and a plurality of first circumferential reinforcing ribs and a plurality of first radial reinforcing ribs are arranged around the center of the circle on the flow guide area.

[0009] Preferably, the plurality of first circumferential reinforcing ribs and the plurality of first radial reinforcing ribs divide the flow guide area into a plurality of fan-shaped flow guide holes.

[0010] Preferably, the plurality of first radial reinforcing ribs divide the flow guide area into a plurality of fan-shaped flow guide areas; and the flow guide area of ​​each fan-shaped flow guide area is the same.

[0011] Preferably, on each fan-shaped guide area, multiple first circumferential reinforcement ribs divide each fan-shaped guide area into a first guide part, a second guide part and a third guide part arranged in sequence toward the edge direction; a circumferentially distributed first fan-shaped hole is provided on the first guide part; two circumferentially distributed second fan-shaped holes are provided on the second guide part; three circumferentially distributed third fan-shaped holes are provided on the third guide part; a second radial reinforcement rib is provided between two adjacent second fan-shaped holes; a third radial reinforcement rib is provided between two adjacent third fan-shaped holes; the second radial reinforcement rib is provided at the middle position of the circumference of the first fan-shaped hole; the third radial reinforcement rib is provided at the middle position of the circumference of the second fan-shaped hole.

[0012] Preferably, the guide area further includes a second circumferential reinforcing rib arranged around the center position; the first fan-shaped hole, the second fan-shaped hole and the third fan-shaped hole are divided into at least two parts by the second circumferential reinforcing rib.

[0013] Preferably, the cross-sections of the first circumferential reinforcing rib and the first radial reinforcing rib, the second radial reinforcing rib and the third radial reinforcing rib, and the second circumferential reinforcing rib all form protrusions on the first surface of the plate body, and the cross-sections of the protrusions are all triangular, and the first side of the triangle coincides with the first surface of the plate body.

[0014] Preferably, a guide layer is provided on the inner wall of the guide hole, and the guide layer is in contact with the inner wall of the guide hole.

[0015] Preferably, a guide groove is provided on the guide layer; the guide groove extends from one side in the direction of the first surface of the plate body to one side in the direction of the second surface.

[0016] Preferably, the guide groove is straight or curved.

[0017] According to another aspect of the present application, an oil mist collector is provided, comprising a guide plate, wherein the guide plate is the guide plate for the oil mist collector as described above.

[0018] The present application provides a guide plate for an oil mist collector and an oil mist collector having the same. The guide area corresponds to the position of the heat exchanger in the oil mist collector, and the exhaust gas can be transferred to the heat exchanger position in a concentrated manner, effectively increasing the condensation of harmful substances in the exhaust gas by the heat exchanger, and improving the heat exchange efficiency; and since there is a gap between the cylinder body and the heat exchanger in the guide plate, it does not actually participate in the heat exchange, and the guide area will not be involved there, allowing more gas to pass through the position corresponding to the heat exchanger, which can prevent part of the exhaust gas from being discharged without being purified due to being far away from the heat exchanger, and can effectively improve the purification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a guide plate for an oil mist collector according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the guide plate and the oil mist collector of the embodiment of the present application;

[0021] Figure 3 This is a schematic structural diagram of a guide plate for an oil mist collector according to an embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of a guide plate for an oil mist collector according to an embodiment of the present application;

[0023] Figure 5 This is a schematic structural diagram of the first circumferential reinforcement rib and the first radial reinforcement rib of an embodiment of the present application.

[0024] The reference numerals are:

[0025] 1. Plate body; 2. Guide area; 21. Guide hole; 22. First radial reinforcement rib; 23. First circumferential reinforcement rib; 24. First edge; 25. Second radial reinforcement rib; 26. Third radial reinforcement rib; 27. Second circumferential reinforcement rib; 3. Positioning hole; 4. Liquid pipe mounting hole; 5. Gas pipe mounting hole; 6. Cylinder body; 61. Heat exchange chamber; 62. Air intake chamber; 63. Recovery chamber; 64. Mounting hole; 7. Air intake pipe; 8. Coil heat exchanger; 9. Refrigerant liquid pipe inlet pipe; 10. Refrigerant gas pipe outlet pipe; 11. Exhaust port. DETAILED DESCRIPTION

[0026] See also Figure 1 As shown, according to an embodiment of the present application, a guide plate for an oil mist collector comprises: a plate body 1, which is arranged between the air inlet of the oil mist collector and the heat exchanger; a guide area 2 is arranged on the plate body 1, and the guide area 2 corresponds to the position of the heat exchanger in the oil mist collector; a plurality of guide holes 21 are arranged on the guide area 2; the guide area 2 is used to uniformly transmit the gas entering from the air inlet to the heat exchanger; and a liquid pipe mounting hole 4 and a gas pipe mounting hole 5 are also arranged on the plate body 1. The above technical scheme can ensure the smooth passage of the refrigerant liquid pipe inlet pipe 9 and the refrigerant gas pipe outlet pipe 10 of the coil heat exchanger 8, which is convenient for the installation of the plate body 1; and the guide area 2 corresponds to the position of the heat exchanger in the oil mist collector, and can concentrate the exhaust gas to the heat exchanger position, which can effectively increase the condensation of harmful substances in the exhaust gas by the heat exchanger and improve the heat exchange efficiency; and the outer edge of the guide plate does not actually participate in the heat exchange because the upper part is the gap between the cylinder body 6 and the heat exchanger 8, and the guide area 2 will not be involved there, allowing more gas to pass through the position corresponding to the heat exchanger, which can prevent part of the exhaust gas from being purified and discharged due to the distance from the heat exchanger, and can effectively improve the purification rate.

[0027] Furthermore, a positioning hole 3 is provided on the edge of the plate body 1; the positioning hole 3 is provided on the surface of the plate body 1 and is used to locate the installation position of the guide plate, so that the plate body 1 can be effectively positioned to facilitate its installation.

[0028] Furthermore, the number of the positioning holes 3 is 3, and the 3 positioning holes 3 can determine a plane to effectively position the installation position of the plate body 1. The positioning holes 3 here are positioning holes 3 in the circumferential direction, and the circumferential positioning is completed when the guide plate positioning holes 3 and the wall positioning holes are in the same position.

[0029] See also Figure 2 As shown, according to an embodiment of the present application, an oil mist collector includes a guide plate, which is the guide plate for the oil mist collector mentioned above.

[0030] Furthermore, it also includes: a cylinder body 6, an air intake pipe 7, a coil heat exchanger 8, an exhaust port 11 and a guide plate; the cylinder body 6 includes a heat exchange chamber 61, an air intake chamber 62 and a recovery chamber 63 distributed from top to bottom; the air intake pipe 7 is arranged on the side wall of the cylinder body 6 and is connected with the air intake chamber 62; the coil heat exchanger 8 is arranged in the heat exchange chamber 61; the guide plate is arranged at the connection between the air intake chamber 62 and the heat exchange chamber 61, and separates the heat exchange chamber 61 from the air intake chamber 62; the guide plate is the above-mentioned guide plate for the oil mist collector; the position of the recovery chamber 63 corresponds to the position of the coil heat exchanger 8, and the recovery chamber 63 is used to recover the waste gas that is condensed by the coil heat exchanger 8 to form a liquid; the exhaust port 11 is arranged at the top of the cylinder body 6, and the exhaust port 11 is used to discharge the purified gas. The specific working state of the above technical solution is: the workshop exhaust gas with a higher temperature enters the air intake cavity 62 through the air intake pipe 7, and after being guided by the guide plate, forms a uniform and dense airflow and enters the heat exchange cavity 61 through the guide hole 21, and after contacting the low-temperature condensing coil, i.e., the coil heat exchanger 8 distributed in the heat exchange cavity 61, condenses into liquid oil, gathers on the surface of the coil heat exchanger 8, and then drips into the recovery cavity 63 for recovery under the action of gravity, and the clean air purified by the coil heat exchanger 8 is discharged through the exhaust port 11. The first surface of the guide plate is the upper surface of the guide plate after installation, and the second surface is the lower surface after installation.

[0031] Furthermore, the cylinder body 6 is provided with a mounting hole 64 corresponding to the positioning hole 3. The mounting hole 64 cooperates with the positioning hole 3 to locate the installation position of the plate body 1, and the mounting hole can be welded and fixed to the plate body 1 from the outside of the cylinder body 6; it is not only convenient to install the plate body 1, but also can ensure the overall sealing of the cylinder body 6 to prevent the exhaust gas from leaking out and polluting the environment. The specific installation steps are: first, the three positioning holes 3 in the circumferential direction are used to ensure the positioning in the circumferential direction with the mounting hole 64 on the cylinder body 6; the installation position of the plate body 1 is determined, and then the mounting hole 64 on the cylinder body 6 is observed to complete the positioning of the plate body 1 in the height direction in the cylinder body 6, and finally welding is performed from the mounting hole 64. After fixing the plate body 1, the mounting hole 64 is evenly filled with solder to ensure the sealing.

[0032] See also Figure 3 As shown, the present application also provides some embodiments, the guide area 2 is circular, and a plurality of first circumferential reinforcing ribs 23 and a plurality of first radial reinforcing ribs 22 are arranged on the first surface of the guide area 2 around the center position of the circle, which can effectively enhance the structural strength of the plate body 1.

[0033] Furthermore, the plurality of first circumferential reinforcing ribs 23 and the plurality of first radial reinforcing ribs 22 divide the flow guide area 2 into a plurality of fan-shaped flow guide holes 21 .

[0034] See also Figure 4 As shown, the present application also provides some embodiments, wherein a plurality of first radial reinforcing ribs 22 divide the flow guide area 2 into a plurality of fan-shaped flow guide areas; the flow guide area of ​​each fan-shaped flow guide area is the same.

[0035] Furthermore, on each fan-shaped flow guide area, a plurality of first circumferential reinforcing ribs 23 divide each fan-shaped flow guide area into a first flow guide part, a second flow guide part and a third flow guide part arranged in sequence toward the edge direction; a circumferentially distributed first fan-shaped hole is arranged on the first flow guide part; two circumferentially distributed second fan-shaped holes are arranged on the second flow guide part; three circumferentially distributed third fan-shaped holes are arranged on the third flow guide part; a second radial reinforcing rib 25 is arranged between two adjacent second fan-shaped holes; a third radial reinforcing rib 26 is arranged between two adjacent third fan-shaped holes; the second radial reinforcing rib 25 is arranged at the middle position of the circumference of the first fan-shaped hole; the third radial reinforcing rib 26 is arranged at the middle position of the circumference of the second fan-shaped hole. The above technical scheme, based on the fluid mechanics simulation design, allows the oil and gas to enter the heat exchange chamber 61 more evenly, effectively improves the flow condition of the oil and gas, improves the heat exchange efficiency of the oil and gas, and strengthens the structural strength of the entire plate body 1.

[0036] Furthermore, the first surface of the guide area 2 also includes second circumferential reinforcing ribs 27 arranged around the center position; the first fan-shaped hole, the second fan-shaped hole and the third fan-shaped hole are all divided into at least two parts by the second circumferential reinforcing ribs 27.

[0037] See also Figure 5 As shown, the present application also provides some embodiments, a plurality of first circumferential reinforcing ribs 23 and a plurality of first radial reinforcing ribs 22, a second radial reinforcing rib 25 and a third radial reinforcing rib 26 and a second circumferential reinforcing rib 27 all form protrusions on the first surface of the plate body 1, and the cross-section of the protrusions is a triangle, and the first side 24 of the triangle coincides with the first surface of the plate body 1. When the exhaust gas that contacts the coil heat exchanger 8 is condensed into liquid oil and gathered on the surface of the coil heat exchanger 8, when it flows downward under the action of gravity, a part of the liquid oil directly passes through the guide hole 21 and flows into the recovery chamber 63 for collection, and a part of the liquid oil drops The oil dripping on the first circumferential reinforcing rib 23, the first radial reinforcing rib 22, the second radial reinforcing rib 25, the third radial reinforcing rib 26 and the second circumferential reinforcing rib 27, which have a triangular cross-section, will cause the oil dripping on the first circumferential reinforcing rib 23 or the first radial reinforcing rib 22 to flow directly into the guide hole 21 along the second side and the third side of the triangle, and drip into the recovery chamber 63, preventing the oil from being retained on the first surface of the plate body 1 and unable to drip, thereby affecting the recovery of the oil.

[0038] Furthermore, a guide layer is provided on the inner wall of the guide hole 21, and the guide layer is in contact with the inner wall of the guide hole 21. When the exhaust gas contacts the coil heat exchanger 8, it condenses into liquid oil and gathers on the surface of the coil heat exchanger 8. When it flows downward under the action of gravity, it can flow down from the side wall of the guide hole 21 and quickly flow out through the guide plate, preventing the liquid from being retained on the plate body 1 and affecting the recovery of the oil.

[0039] Furthermore, a guide groove is provided on the inner surface of the guide layer; the guide groove extends from one side of the first surface direction of the plate body 1 to one side of the second surface direction; the guide groove is used to guide the liquid on the first surface of the plate body 1 to flow into the recovery chamber 63 through the guide hole 21.

[0040] Furthermore, the guide groove is linear or curved; there are multiple guide grooves. When the guide groove is curved, the liquid flowing down from the first surface of the plate body 1 flows slowly in the spiral guide groove. The slower the flow rate, the longer the residence time in the guide groove. Therefore, in the process of flowing down, the exhaust gas flowing upward from the guide hole 21 can absorb part of the coldness of the liquid, thereby reducing the condensation load of the coil heat exchanger 8, improving the heat exchange efficiency, and reducing energy consumption. When the guide groove is linear, it can effectively guide the oil in the plate body 1 and the guide hole 21 to flow down and enter the recovery chamber 63.

[0041] Furthermore, the liquid pipe installation hole 4 corresponds to the position of the refrigerant liquid pipe outlet pipe 9 .

[0042] Furthermore, the air pipe installation hole 5 corresponds to the position of the refrigerant air pipe inlet pipe 10 , which facilitates the passage of the refrigerant liquid pipe outlet pipe 9 and the refrigerant liquid pipe outlet pipe 9 .

[0043] Furthermore, the air pipe installation hole 5 is a fan-shaped hole circumferentially arranged around the liquid pipe installation hole 4 .

[0044] Furthermore, the central angle of the air pipe installation hole 5 is -15° to 15°, which can prevent the problem of assembly failure caused by processing errors.

[0045] Furthermore, the coil heat exchanger 8 is tilted in the heat exchange chamber 61. When the cross-section of the cylinder body 6 is circular, the axial projection of the coil heat exchanger 8 installed inside the heat exchanger 61 is a solid circle, which can effectively increase the contact area between the exhaust gas and the coil heat exchanger 8, increase the heat exchange efficiency of the gas, and effectively improve the gas purification efficiency.

[0046] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An oil mist collector, characterized in that: The invention comprises a guide plate, wherein the guide plate comprises a plate body (1), wherein the plate body (1) is arranged between an air inlet of an oil mist collector and a heat exchanger; a guide area (2) is arranged on the plate body (1), wherein the guide area (2) corresponds to the position of the heat exchanger in the oil mist collector; a plurality of guide holes (21) are arranged on the guide area (2); the guide area (2) is used to uniformly transmit the gas entering the air inlet to the heat exchanger; and a liquid pipe mounting hole (4) and a gas pipe mounting hole (5) are also arranged on the plate body (1); A guide layer is provided on the inner wall of the guide hole (21), and the guide layer is in contact with the inner wall of the guide hole (21); A guide groove is provided on the inner surface of the guide layer; the guide groove extends from one side in the direction of the first surface of the plate body (1) to one side in the direction of the second surface; The guide groove is in a curved shape.

2. The oil mist collector according to claim 1, characterized in that: A positioning hole (3) is also provided at the edge of the plate body (1); the positioning hole (3) is provided on the surface of the plate body (1); the positioning hole (3) is used to locate the installation position of the guide plate.

3. The oil mist collector according to claim 1, characterized in that: The flow guide area (2) is circular, and the flow guide area (2) is provided with a plurality of first circumferential reinforcing ribs (23) and a plurality of first radial reinforcing ribs (22) around the center of the circle.

4. The oil mist collector according to claim 3, characterized in that: The plurality of first circumferential reinforcing ribs (23) and the plurality of first radial reinforcing ribs (22) divide the flow guide area (2) into a plurality of fan-shaped flow guide holes (21).

5. The oil mist collector according to claim 3, characterized in that: The plurality of first radial reinforcing ribs (22) divide the flow guide area (2) into a plurality of fan-shaped flow guide areas; the flow guide area of ​​each fan-shaped flow guide area is the same.

6. The oil mist collector according to claim 5, characterized in that: On each of the fan-shaped guide areas, a plurality of the first circumferential reinforcing ribs (23) divide each fan-shaped guide area into a first guide portion, a second guide portion and a third guide portion which are arranged in sequence in the edge direction; the first guide portion is provided with a circumferentially distributed first fan-shaped hole; the second guide portion is provided with two circumferentially distributed second fan-shaped holes; the third guide portion is provided with three circumferentially distributed third fan-shaped holes; a second radial reinforcing rib (25) is provided between two adjacent second fan-shaped holes; a third radial reinforcing rib (26) is provided between two adjacent third fan-shaped holes; the second radial reinforcing rib (25) is provided at a circumferentially middle position of the first fan-shaped hole; and the third radial reinforcing rib (26) is provided at a circumferentially middle position of the second fan-shaped hole.

7. The oil mist collector according to claim 6, characterized in that: The flow guide area (2) further comprises a second circumferential reinforcing rib (27) arranged around the center of the circle; the first fan-shaped hole, the second fan-shaped hole and the third fan-shaped hole are all divided into at least two parts by the second circumferential reinforcing rib (27).

8. The oil mist collector according to any one of claims 3 to 7, characterized in that: The first circumferential reinforcing rib (23), the first radial reinforcing rib (22), the second radial reinforcing rib (25), the third radial reinforcing rib (26), and the second circumferential reinforcing rib (27) all form protrusions on the first surface of the plate body (1), and the cross-section of the protrusions is a triangle, and the first side (24) of the triangle coincides with the first surface of the plate body (1).

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