Breathing cap for Roots blower
By installing an inclined oil-blocking plate and an oil-blocking sponge in the breather cap of the Roots blower, the problem of odor caused by lubricating oil evaporation was solved, achieving zero emission of lubricating oil and improving the air quality of the wheat soaking process.
Patent Information
- Application Number
- CN202520632374.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-03
AI Technical Summary
The existing Roots blower's breathing cap faces directly into the air without a filter, causing lubricating oil to evaporate into the air, creating an odor around the equipment and affecting the quality of the wheat soaking process.
Design a breathing cap for Roots blowers, including a connecting cylinder, inclined oil-blocking plates, and oil-blocking sponges. The inner wall of the connecting cylinder is provided with inclined and staggered oil-blocking plates to collect oil droplets, and the oil-blocking sponges absorb oil and gas. Combined with a sealing strip, a seal is achieved, extending the residence time of oil and gas in the connecting cylinder to achieve zero emissions.
It effectively recovers and absorbs lubricating oil gases, reduces environmental pollution, avoids adverse effects on the malting process, and ensures air quality.
Smart Images
Figure CN223814158U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to roots blower component technical field, especially relate to a breathing cap for roots blower. BACKGROUND
[0002] In the process of steeping, roots blower sends fresh air into the steeping tank, providing necessary oxygen for the grain. This helps to promote the respiration of the grain and speed up the germination process. At present, a breathing cap is installed on the roots blower impeller reduction gearbox, which directly faces the atmosphere, and since it does not have a filter device, when the oil temperature in the reduction gearbox rises sharply during operation, the lubricating oil volatilizes and is directly released into the air from the breathing cap, causing air odor around the equipment, and if the odor is sucked into the roots blower inlet again, it will adversely affect the quality of the steeping process. SUMMARY
[0003] To solve the problem of the existing roots blower breathing cap directly facing the air and not having a filter device, causing the lubricating oil to volatilize directly into the air and affecting the quality of the steeping process, the utility model provides a breathing cap for roots blower.
[0004] The utility model is implemented as follows:
[0005] A breathing cap for roots blower, comprising a connecting cylinder installed on the outside of the oil and gas channel of the roots blower, a plurality of inclined oil blocking plates are arranged on the inner wall of the connecting cylinder, a top cover is provided on the top of the connecting cylinder, and an oil blocking sponge is installed between the top cover and the connecting cylinder.
[0006] Further, the fixed end of the oil blocking plate is fixedly connected with the inner wall of the connecting cylinder, and the free end of the oil blocking plate extends downwardly to the axis of the connecting cylinder.
[0007] Further, the vertical distance between the free end of the oil blocking plate and the inner wall of the connecting cylinder is greater than the inner diameter of the connecting cylinder.
[0008] Further, the plurality of oil blocking plates are arranged on the inner walls of the two sides of the connecting cylinder in opposite staggered manner, and the plurality of oil blocking plates on each side are arranged in uniform distribution along the axial direction of the connecting cylinder.
[0009] Further, a ring groove is provided in the lower part of the connecting cylinder, and a sealing strip is installed in the ring groove, one side of the sealing strip abuts against the bottom wall of the ring groove, and the other side abuts against the outer wall of the oil and gas channel.
[0010] Further, the sealing strip is a D-shaped hollow sealing strip.
[0011] Further, a recess is provided in the top cover, and the oil blocking sponge is embedded in the recess.
[0012] Further, an end of the groove away from the bottom wall is inwardly convexly provided with a stop plate for preventing the oil-blocking sponge from falling out of the groove.
[0013] Further, the stop plate is annular in structure, and an inner diameter of the stop plate is greater than an outer diameter of the connecting cylinder.
[0014] Further, a thickness of the groove is greater than or equal to a thickness of the oil-blocking sponge.
[0015] The utility model discloses the beneficial effect is:
[0016] The utility model discloses the connecting cylinder inside setting the oil -blocking board of downward inclination, make oil gas in the moving process directly with oil -blocking board and collide, realize the recovery of oil drop, and when through the circuitous passage of multiple oil -blocking board constitution continues to move, the residence time of oil gas in the connecting cylinder has been lengthened, and in combination with the full absorption of oil gas on the oil -blocking sponge of top cap, further carry out the interception of oil gas, thereby basically realized the zero emission of oil gas, reduced the pollution to surrounding environment, avoided the adverse effect to the quality of the steeping process. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the internal structure schematic view of the utility model.
[0018] BRIEF DESCRIPTION OF DRAWINGS
[0019] 1, oil gas passage;2, connecting cylinder;21, annular groove;3, oil -blocking board;4, top cap;41, groove;42, stop plate;5, oil -blocking sponge;6, sealing strip. DETAILED DESCRIPTION
[0020] The technical scheme in the utility model embodiment is clearly and completely described below in combination with the drawings in the utility model embodiment. In the following description, a large number of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore, the utility model is not limited by the following disclosed specific embodiments.
[0021] As Figure 1 The utility model discloses a breathing cap for roots blower, including the connecting cylinder 2 of installing in the oil gas passage 1 outside of roots blower, the inner wall of connecting cylinder 2 is staggered and is provided with multiple inclined oil -blocking board 3, the top of connecting cylinder 2 is covered with top cap 4, and the oil -blocking sponge 5 is installed between top cap 4 and connecting cylinder 2.
[0022] The inner wall of the connecting cylinder 2 is provided with a plurality of inclined oil blocking plates 3. Specifically, the plurality of oil blocking plates 3 are arranged in an alternating manner on the inner walls of the two sides of the connecting cylinder 2, and the plurality of oil blocking plates 3 on each side are arranged in the axial direction of the connecting cylinder 2. The fixed end of the oil blocking plate 3 is fixedly connected with the inner wall of the connecting cylinder 2, and the free end of the oil blocking plate 3 extends downwardly to the axis of the connecting cylinder 2. The plurality of oil blocking plates 3 are arranged in an alternating manner, so that the oil and gas in the oil and gas passage 1 directly impact on the downwardly inclined oil blocking plate 3, thereby realizing the backflow of oil droplets. The vertical distance between the free end of the oil blocking plate 3 and the inner wall of the connecting cylinder 2 is greater than the inner diameter of the connecting cylinder 2, so that the free ends of the oil blocking plates 3 present a lap joint structure, that is, there is no gap between the free ends of any two adjacent oil blocking plates 3 in the vertical projection distance. The oil blocking plate 3 and the connecting cylinder 2 form a detour passage, so that the oil and gas in the oil and gas passage 1 cannot directly move to the top cover 4 along the axial direction of the connecting cylinder 2. The movement of the oil and gas along the detour passage prolongs the residence time of the oil and gas in the connecting cylinder 2.
[0023] The lower part of the connecting cylinder 2 is provided with a ring groove 21, and a sealing strip 6 is arranged in the ring groove 21. One side of the sealing strip 6 abuts against the bottom wall of the ring groove 21, and the other side abuts against the outer wall of the oil and gas passage 1. The sealing strip 6 is a D-shaped hollow sealing strip with elasticity. When the connecting cylinder 2 is not installed on the oil and gas passage 1, the sealing strip 6 is arranged in the ring groove 21, one side of which abuts against the bottom wall of the ring groove 21, and the other side protrudes out of the ring groove 21. When the connecting cylinder 2 is arranged on the outer side of the oil and gas passage 1, the side of the sealing strip 6 protruding out of the ring groove 21 is compressed under the extrusion of the outer wall of the oil and gas passage 1, so that the sealing strip 6 is in a compressed state and is tightly connected with the connecting cylinder 2 and the oil and gas passage 1. The arrangement of the sealing strip 6 not only enables the connecting cylinder 2 to be tightly connected on the outer side of the oil and gas passage 1, but also has a sealing effect, preventing the oil and gas in the oil and gas passage 1 from escaping from the connection between the two to affect the air quality of the surrounding environment.
[0024] The top cover 4 is provided with a recess 41, and the oil blocking sponge 5 is arranged in the recess 41. The end of the recess 41 away from the bottom wall thereof is inwardly provided with a stop plate 42 for preventing the oil blocking sponge 5 from falling out of the recess 41. The stop plate 42 has an annular structure, and the inner diameter of the stop plate 42 is greater than the outer diameter of the connecting cylinder 2, so that a gap is formed between the stop plate 42 and the connecting cylinder 2, and the gap is used for the passage of oil and gas and other gases, facilitating the escape of other gases. The thickness of the recess 41 is greater than or equal to the thickness of the oil blocking sponge 5, so that the oil blocking sponge 5 is more convenient and labor-saving when arranged in the recess 41, and the porosity of the oil blocking sponge 5 can be ensured in the daily state without being compressed, thereby ensuring the adsorption capacity and air permeability of the oil blocking sponge 5.
[0025] The utility model discloses a breathing cap for roots blower, first, the connecting cylinder 2 is set in the outside of oil gas passageway 1, and the both are tightly connected through the sealing strip 6 of setting, and the oil resistance sponge 5 is installed in the top cover 4, and the top cover 4 is covered in the top of connecting cylinder 2. When the oil temperature of the lubricating oil in the reduction gearbox body rises sharply in the operation process, the oil gas enters the connecting cylinder 2 through the oil gas passageway 1, and moves to the top cover 4 along the detour passageway formed by multiple oil resistance plates 3, and the oil gas collides with the oil resistance plate 3 in the moving process, realizes the recovery of oil droplet, and the residence time of the oil gas in the connecting cylinder 2 is prolonged when passing through the detour passageway, and the oil gas is further intercepted by combining the full absorption of the oil resistance sponge 5 on the top cover 4, so that the zero emission of the oil gas is basically realized. In addition, other gases in the oil gas escape from the gap between the stop plate 42 and the connecting cylinder 2.
[0026] The utility model discloses a preferable embodiment for realizing the above-mentioned purpose, but it is not used to limit the structural features of the utility model, and any person skilled in the art should know that any easy thought change or modification is possible under the technical spirit of the utility model, and all are covered by the patent application range of the utility model.
Claims
1. A breathing cap for a Roots blower, characterized in that The utility model relates to a kind of oil blocking device of Roots blower, including the connecting cylinder (2) installed in the oil-gas passage (1) outside of Roots blower, the inner wall of the connecting cylinder (2) is staggered with multiple inclined oil blocking plates (3), the top of the connecting cylinder (2) is covered with top cover (4), and oil blocking sponge (5) is installed between the top cover (4) and the connecting cylinder (2).
2. The respiratory cap for a Roots blower of claim 1, wherein, The fixed end of the oil blocking plate (3) is fixedly connected with the inner wall of the connecting cylinder (2), and the free end of the oil blocking plate (3) extends downwardly to the axis of the connecting cylinder (2).
3. The respiratory cap for a Roots blower of claim 2, wherein, The vertical distance between the free end of the oil blocking plate (3) and the inner wall of the connecting cylinder (2) is greater than the inner diameter of the connecting cylinder (2).
4. The respiratory cap for a Roots blower of claim 1 or 2, wherein, Multiple oil blocking plates (3) are arranged on the inner walls of both sides of the connecting cylinder (2) in a staggered manner, and multiple oil blocking plates (3) on each side are arranged along the axial direction of the connecting cylinder (2).
5. The respiratory cap for a Roots blower of claim 1, wherein, A ring groove (21) is formed in the lower part of the connecting cylinder (2), and a sealing strip (6) is arranged in the ring groove (21), one side of the sealing strip (6) abuts against the bottom wall of the ring groove (21), and the other side abuts against the outer wall of the oil-gas passage (1).
6. The respiratory cap for a Roots blower of claim 5, wherein, The sealing strip (6) is a D-shaped hollow sealing strip.
7. The respiratory cap for a Roots blower of claim 1, wherein, A recess (41) is formed in the top cover (4), and the oil blocking sponge (5) is embedded in the recess (41).
8. The respiratory cap for a Roots blower of claim 7, wherein, One end of the recess (41) away from the bottom wall is inwardly provided with a stop plate (42) to prevent the oil blocking sponge (5) from falling out of the recess (41).
9. The respiratory cap for a Roots blower of claim 8, wherein, The stop plate (42) has an annular structure, and the inner diameter of the stop plate (42) is greater than the outer diameter of the connecting cylinder (2).
10. The respiratory cap for a Roots blower of claim 7, wherein, The thickness of the recess (41) is greater than or equal to the thickness of the oil blocking sponge (5).