Cooling and lubricating system for mechanical seal

Abstract

The utility model belongs to the field of mechanical sealing, and particularly relates to a cooling and lubricating system for mechanical sealing, which is characterized in that the end part of a sealing bin is fixedly connected with a liquid injection part, the middle part of the sealing bin is rotatably provided with a rotating shaft, the inner wall of the left side of the sealing bin is fixedly provided with a cooling circulating part, and the shaft body of the rotating shaft is sleeved and connected with an oil flinger; a magnet is connected to the inner wall of the sealing bin in a sleeving mode, a mechanical sealing movable ring is connected to the inner wall of the sealing bin in an embedded mode, a mechanical sealing static ring is movably connected to the end of the mechanical sealing movable ring, mechanical parts in the sealing bin are cooled through circulating flowing of lubricating oil, and energy loss caused by friction generated by too high stability is avoided; and when the temperature of the lubricating oil is high, the cooling circulation piece can cool the lubricating oil, so that the lubricating oil is kept in a normal-temperature state, the magnet can cooperate with flowing of the lubricating oil, scrap iron adsorbed by the lubricating oil is collected, and the situation that the scrap iron adheres to the surfaces of mechanical parts in the sealing bin, and friction loss is increased in the operation process is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mechanical seals, in particular to a cooling and lubricating system for mechanical seals. Background Art

[0002] The use of mechanical seals on dry screw vacuum pumps can effectively prevent liquid or gas from leaking from the sealing parts of the equipment, maintain the sealing performance of the system, avoid energy waste and environmental pollution, reduce friction and wear between the shaft and the sealing surface, reduce energy consumption, and improve the operating efficiency of the equipment. Mechanical seals can be applied to various complex working conditions, including high temperature, high pressure, low temperature, corrosive media, etc., and have strong adaptability.

[0003] The operation of mechanical seals will generate a lot of heat. In order to ensure the normal operation and service life of the mechanical seals, the mechanical seals need to be cooled and lubricated. The existing solution is to fill the entire space where the mechanical seal is located with lubricating oil. This lubrication method uses the rotation of the shaft to drive the lubricating oil to move for lubrication. However, after long-term use, the lubricating oil will heat up, and the iron filings adsorbed by the lubricating oil during the lubrication process will produce friction with the shaft as it moves, increasing the temperature of the lubricating oil. Therefore, a cooling and lubrication system for mechanical seals is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a cooling and lubricating system for mechanical seals.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a cooling and lubricating system for mechanical seal, comprising a sealing chamber, the end of the sealing chamber is fixedly connected with a liquid injection part, the middle of the sealing chamber is rotatably provided with a rotating shaft, the inner wall on the left side of the sealing chamber is fixedly provided with a cooling circulation part, the shaft body of the rotating shaft is sleeved with an oil throwing plate, the inner wall of the sealing chamber is sleeved with a magnet, the inner wall of the sealing chamber is embedded with a mechanical seal dynamic ring, and the end of the mechanical seal dynamic ring is movably connected with a mechanical seal static ring;

[0006] Preferably, the magnet further comprises a chip collecting groove, and a plurality of chip collecting grooves are formed on the inner wall of the magnet;

[0007] Preferably, the chip collecting groove further comprises an annular barrier groove, and the inner wall of the chip collecting groove is provided with an annular barrier groove;

[0008] Preferably, the cooling circulation component comprises two cooling pipes, and the fixing ring on the outer wall of the cooling pipe is fixedly connected to the inner wall on the left side of the sealing chamber.

[0009] The utility model is beneficial in that:

[0010] 1. The utility model cools down the mechanical parts inside the sealed chamber through the circulation of lubricating oil, avoiding energy loss caused by friction caused by excessive stability. Moreover, when the temperature of the lubricating oil is high, the cooling circulation part can cool down the lubricating oil, so that the lubricating oil is kept at a normal temperature.

[0011] 2. The utility model can cooperate with the flow of lubricating oil through the arrangement of magnets to collect iron filings adsorbed by the lubricating oil, thereby preventing iron filings from adhering to the surface of mechanical parts inside the sealed chamber, thereby increasing friction losses during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the transverse cross-sectional structure;

[0015] Figure 3 It is a structural schematic diagram of the magnet of the utility model.

[0016] In the figure:

[0017] 1. Sealing chamber; 11. Liquid injection part; 2. Rotating shaft; 3. Oil throwing tray; 4. Magnet; 41. Chip collecting groove; 5. Mechanical seal moving ring; 6. Mechanical seal stationary ring; 7. Cooling circulation part; 8. Lubricating oil. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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 in 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.

[0019] The following is combined with Figure 1-3 To further explain this application in detail,

[0020] The embodiment of the present application discloses a cooling and lubricating system for mechanical seal, comprising a sealing chamber 1, an end of the sealing chamber 1 is fixedly connected with a liquid injection part 11, a rotating shaft 2 is rotatably provided in the middle of the sealing chamber 1, a cooling circulation part 7 is fixedly provided on the inner wall on the left side of the sealing chamber 1, an oil-slinging plate 3 is sleeved and connected to the shaft body of the rotating shaft 2, a magnet 4 is sleeved and connected to the inner wall of the sealing chamber 1, a mechanical seal dynamic ring 5 is embedded and connected to the inner wall of the sealing chamber 1, and a mechanical seal static ring 6 is movably connected to the end of the mechanical seal dynamic ring 5;

[0021] The magnet 4 further includes a chip collecting groove 41, and a plurality of chip collecting grooves 41 are formed on the inner wall of the magnet 4;

[0022] The chip collecting groove 41 further comprises an annular barrier groove, and the inner wall of the chip collecting groove 41 is provided with an annular barrier groove;

[0023] The cooling circulation component 7 includes two cooling pipes, and the fixing ring on the outer wall of the cooling pipe is fixedly connected to the inner wall on the left side of the sealing chamber 1.

[0024] Working principle: When using the sealed chamber 1, the lubricating oil 8 is injected into the sealed chamber 1 through the injection piece 11, so that the rotating shaft 2 can be started to rotate. The rotating shaft 2 drives the oil-slinging plate 3 to rotate synchronously during the rotation process, and the oil-slinging plate 3 continuously swings the lubricating oil 8 in the sealed chamber 1 during the rotation process, so that the lubricating oil 8 flows from the upper part to the lower part of the sealed chamber 1 during use. In this process, the lubricating oil 8 lubricates the inside of the sealed chamber 1 along the path it passes through, and when the lubricating oil 8 passes the position of the magnet 4 from the upper part, it can absorb the iron filings in the lubricating oil 8, and place the iron filings into the rotating shaft of the rotating shaft 2 along with the lubricating oil 8, and the iron filings pass through When the magnet 4 is in the position, the annular barrier groove arranged in the chip collecting groove 41 can prevent the lubricating oil 8 from flowing too fast, thereby slowing down the flowing lubricating oil 8, so that the magnet 4 can absorb the iron chips in the lubricating oil 8, and the chip collecting groove 41 can collect the iron chips to prevent the iron chips from flowing again with the lubricating oil 8. When the lubricating oil 8 flows to the position of the mechanical seal static ring 6 and the mechanical seal dynamic ring 5, the mechanical parts of this part can be cooled, and the lubricating oil 8 takes away the heat of the mechanical parts. Then when the lubricating oil 8 flows to the position of the cooling circulation part 7, the cooling pipe in the cooling circulation part 7 will cool the lubricating oil 8, thereby forming an internal circulation, thereby achieving the effect of lubrication and cooling.

[0025] Through the circulation of the lubricating oil 8, the mechanical parts inside the sealed chamber 1 are cooled down to avoid energy loss caused by friction caused by excessive stability. Moreover, when the temperature of the lubricating oil 8 is high, the cooling circulation part 7 can cool down the lubricating oil 8 to keep the lubricating oil 8 at room temperature. The setting of the magnet 4 can cooperate with the flow of the lubricating oil 8 to collect the iron filings adsorbed by the lubricating oil 8 to avoid iron filings sticking to the surface of the mechanical parts inside the sealed chamber 1, which increases the friction loss during operation.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cooling and lubricating system for a mechanical seal, comprising a sealing chamber (1), characterized in that: The end of the sealing chamber (1) is fixedly connected to a liquid injection part (11), a rotating shaft (2) is rotatably arranged in the middle of the sealing chamber (1), a cooling circulation part (7) is fixedly arranged on the inner wall of the left side of the sealing chamber (1), the shaft body of the rotating shaft (2) is sleeve-connected to an oil-slinging plate (3), the inner wall of the sealing chamber (1) is sleeve-connected to a magnet (4), the inner wall of the sealing chamber (1) is embeddedly connected to a mechanical seal dynamic ring (5), and the end of the mechanical seal dynamic ring (5) is movably connected to a mechanical seal static ring (6).

2. A cooling and lubricating system for a mechanical seal according to claim 1, characterized in that: The magnet (4) further comprises a chip collecting groove (41), and a plurality of chip collecting grooves (41) are provided on the inner wall of the magnet (4).

3. A cooling and lubricating system for a mechanical seal according to claim 2, characterized in that: The chip collecting groove (41) further comprises an annular barrier groove, and the inner wall of the chip collecting groove (41) is provided with an annular barrier groove.

4. A cooling and lubricating system for a mechanical seal according to claim 3, characterized in that: The cooling circulation component (7) comprises two cooling pipes, and the fixing ring on the outer wall of the cooling pipe is fixedly connected to the inner wall on the left side of the sealing chamber (1).

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