CN211474845U - External cooling circulation filtration system of coal pulverizer speed reducer - Google Patents
External cooling circulation filtration system of coal pulverizer speed reducer Download PDFInfo
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- CN211474845U CN211474845U CN201922385456.5U CN201922385456U CN211474845U CN 211474845 U CN211474845 U CN 211474845U CN 201922385456 U CN201922385456 U CN 201922385456U CN 211474845 U CN211474845 U CN 211474845U
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- external cooling
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Abstract
The utility model provides an external cooling circulation filtering system of a coal mill speed reducer, which comprises an oil pump, a filter and a plate heat exchanger; the oil pump is connected with an oil outlet of the speed reducer box body, and the speed reducer oil is pumped out, filtered by the filter, cooled by the plate heat exchanger and returned to the speed reducer box body through an oil return port of the speed reducer box body. The oil pump adopts and stops manually on the spot, and when the coal pulverizer speed reducer moved, the manual oil pump that stops when the coal pulverizer speed reducer stopped transporting, manual oil pump that stops was equipped with the oil pump and stops and control the cabinet on the spot. The utility model leads the oil in the speed reducer to the outside for cooling, effectively reduces the temperature of the speed reducer and reduces the damage of high temperature to the equipment; the fluidity of oil in the speed reducer, particularly the oil at the bottom layer, is enhanced, the oil is filtered, impurities in the oil of the speed reducer can be effectively filtered, and the damage to the gear and the bearing of the speed reducer caused by the accumulation of the impurities in the oil is reduced.
Description
Technical Field
The utility model relates to an external cooling circulation filtration system of coal pulverizer speed reducer.
Background
The coal mill speed reducer is the transmission pivot of coal mill operation, meshing friction themogenesis between the gear leads to the coal mill speed reducer temperature to rise, because the built-in snakelike cooling coil heat transfer area of coal mill speed reducer is little, can't reach good cooling effect, make coal mill speed reducer operation temperature high at most, can reach 87 ℃, the life of very big reduction coal mill speed reducer bearing and oil blanket, oil can't obtain filtering in the speed reducer simultaneously, impurity piles up in the oil, the wearing and tearing to speed reducer bearing and gear have aggravated, make the stability of equipment reduce.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an external cooling circulation filtration system of coal pulverizer speed reducer.
The utility model discloses a following technical scheme can realize.
The utility model provides an external cooling circulation filtering system of a coal mill speed reducer, which comprises an oil pump, a filter and a plate heat exchanger; the oil pump is connected with an oil outlet of the speed reducer box body, and the speed reducer oil is pumped out, filtered by the filter, cooled by the plate heat exchanger and returned to the speed reducer box body through an oil return port of the speed reducer box body. The oil pump adopts and stops manually on the spot, and when the coal pulverizer speed reducer moved, the manual oil pump that starts, when the coal pulverizer speed reducer stopped the fortune, manual outage oil pump was equipped with the oil pump and stops and open the on-the-spot switch board.
The oil pump is also connected with 1 overflow valve in parallel, and when the pressure at the outlet of the oil pump exceeds the limit, the pressure is released to a pipeline in front of the oil pump through the overflow valve, so that the overpressure of a pipeline is prevented.
The filter comprises two oil filters connected in parallel, two ends of the two oil filters are connected through two three-way valves, the oil filters can filter impurities in oil, and equipment damage caused by oil problems is reduced; meanwhile, when one oil filter is blocked, the two oil filters connected in parallel can be switched to the other oil filter to operate, and the blocked oil filter can be cleaned and replaced on line.
The outlet of the oil pump is also provided with a pressure gauge, the inlet of the plate heat exchanger is provided with the pressure gauge, the blockage condition of the oil filter can be obtained through calculating the pressure difference of the pressure gauge, and meanwhile, the pressure gauge at the outlet of the oil pump can also monitor the running condition of the system.
The water circulation direction in the plate heat exchanger is opposite to the flow direction of the oil, so that the heat dissipation effect can be enhanced, and the temperature of the water contact part of the oil and the heat exchanger is always higher than that of the water.
The oil pump and the speed reducer are started and stopped synchronously.
The beneficial effects of the utility model reside in that:
(1) the oil in the speed reducer is led out to the outside for cooling, so that the temperature of the speed reducer is effectively reduced, and the damage of high temperature to equipment is reduced.
(2) The fluidity of oil in the speed reducer, particularly the oil at the bottom layer, is enhanced, the oil is filtered, impurities in the oil of the speed reducer can be effectively filtered, and the damage to the gear and the bearing of the speed reducer caused by the accumulation of the impurities in the oil is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1-oil pump, 2-overflow valve, 3-filter, 4-plate heat exchanger, 5-pressure gauge, 6-oil pump motor.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Referring to fig. 1, the utility model discloses a circulative cooling device oil pump (1), supporting motor (6) of oil pump, an overflow valve (2), two parallelly connected oil filter (3), plate heat exchanger (4), two manometer (5) and connecting line. Oil in the speed reducer of the coal mill is pumped out through the oil pump (1), filtered through the filter (3) and then enters the plate heat exchanger for cooling, and the cooled oil enters the speed reducer again. The oil pump is started and stopped manually on site, the oil pump is started manually when the coal mill speed reducer runs, and the oil pump is stopped manually when the coal mill speed reducer stops running; the overflow valve (2) is arranged at the outlet of the oil pump (1), and when the pressure of the pipeline at the outlet of the oil pump (1) exceeds the limit, the oil overflows to the inlet of the oil pump to prevent the pipeline from being over-pressurized; the oil filter (3) consists of two oil filters connected in parallel, when one filter is blocked, the other filter can be switched to operate, and the blocked oil filter is cleaned and replaced on line; two pressure gauges (5) are respectively arranged at the outlet of the oil pump and the outlet of the oil filter (3), the outlet pressure of the oil pump (1) can be monitored, and the blockage condition of the oil filter can be known through the differential pressure of the two pressure gauges.
By adopting the technical scheme, the problem that the temperature is high when the coal mill operates at a reduced speed is solved, and the influence of high temperature on the service life of a bearing and an oil seal of the coal mill speed reducer is reduced; meanwhile, oil in the speed reducer is subjected to good circulating filtration, abrasion of a bearing and a gear of the speed reducer, which is caused by accumulation of impurities in the oil, is reduced, and the stability of equipment is improved.
Claims (7)
1. The utility model provides an external cooling circulation filtration system of coal pulverizer speed reducer, includes oil pump (1), filter (3), plate heat exchanger (4), its characterized in that: the oil pump (1) is connected with an oil outlet of the speed reducer box body, and the speed reducer oil is pumped out, filtered by the filter (3), cooled by the plate heat exchanger (4) and returned to the speed reducer box body through an oil return port of the speed reducer box body.
2. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: the oil pump (1) is also connected with 1 overflow valve (2) in parallel.
3. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: the filter (3) comprises two oil filters connected in parallel, and two ends of the two oil filters are connected through two three-way valves.
4. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: and the outlet of the oil pump (1) is also provided with a pressure gauge (5).
5. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: and a pressure gauge (5) is installed at the inlet of the plate heat exchanger (4).
6. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: the water circulation direction in the plate heat exchanger (4) is opposite to the flow direction of the oil.
7. The external cooling circulation filtering system of the coal mill speed reducer as defined in claim 1, characterized in that: the oil pump (1) and the speed reducer are started and stopped synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385456.5U CN211474845U (en) | 2019-12-26 | 2019-12-26 | External cooling circulation filtration system of coal pulverizer speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385456.5U CN211474845U (en) | 2019-12-26 | 2019-12-26 | External cooling circulation filtration system of coal pulverizer speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474845U true CN211474845U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922385456.5U Active CN211474845U (en) | 2019-12-26 | 2019-12-26 | External cooling circulation filtration system of coal pulverizer speed reducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN211474845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709809A (en) * | 2021-01-08 | 2021-04-27 | 中国煤炭科工集团太原研究院有限公司 | Cutting speed reducer with oil forced circulation cooling function and ventilating structure |
-
2019
- 2019-12-26 CN CN201922385456.5U patent/CN211474845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709809A (en) * | 2021-01-08 | 2021-04-27 | 中国煤炭科工集团太原研究院有限公司 | Cutting speed reducer with oil forced circulation cooling function and ventilating structure |
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