CN203247444U - Water cooling system of defibrator spindle mechanical seal - Google Patents
Water cooling system of defibrator spindle mechanical seal Download PDFInfo
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- CN203247444U CN203247444U CN 201320294777 CN201320294777U CN203247444U CN 203247444 U CN203247444 U CN 203247444U CN 201320294777 CN201320294777 CN 201320294777 CN 201320294777 U CN201320294777 U CN 201320294777U CN 203247444 U CN203247444 U CN 203247444U
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Abstract
The utility model provides a water cooling system of a defibrator spindle mechanical seal, and belongs to defibrator matching equipment of a fibreboard production line. The water cooling system is characterized by comprising a cooling water tank and a water pump, wherein a pipeline located between the cooling water tank and the water pump is provided with a water absorption water filter and a differential pressure indicator; a changeover valve is arranged on a water inlet pipeline and a washing water inlet pipeline between the water pump and an inner cavity of the mechanical seal, and a pressure water filter and a differential pressure indicator are arranged on positions, between the changeover valve and the inner cavity of the mechanical seal, of the water inlet pipeline and the washing water inlet pipeline respectively; a water cooling outlet pipeline is communicated between the inner cavity of the mechanical seal and the cooling water tank, and the water outlet pipe is provided with a safety valve and an electromagnetic valve; an energy accumulator is further designed on the water inlet pipeline and the washing water inlet pipeline between the water pump and the inner cavity of the mechanical seal. After tried out, the water cooling system has the advantages that purified water of a normal temperature is utilized to be connected into the inner cavity of the mechanical seal after pressurization of the water pump, the operating temperature of the water cooling system is reduced by means of circulation of cooling water, and normal operation of a defibrator is effectively guaranteed.
Description
Technical field: the utility model belongs to the defibrator corollary equipment of fibreboard production line, especially for the water cooling system of a kind of hot grinding mill main axis mechanical seal of hot grinding mill main axis mechanical seal cooling.
Background technology: defibrator is important machinery in the producd fibers plate industrial circle, it is to utilize the steam of High Temperature High Pressure to come wood chip is carried out boiling, the plant materials such as wood chip are separated into a kind of continuous separating machine tool of fiber under uniform temperature and pressure, its function is to wear into fiber by the abrasive disc of defibrator through the wood chip of High Temperature High Pressure boiling.Defibrator by a kind of high-precision mechanically-sealing apparatus, is effectively isolated High Temperature High Pressure and transmission system in the process of wearing into fiber through the wood chip of High Temperature High Pressure boiling when operation, thereby has guaranteed the normal operation of transmission system.Mechanical seal is installed on the defibrator final drive shaft, and the quite high temperature of High Temperature High Pressure impact generation that is subject in service must support the use its normal running job of cooling device guarantee.
The packing_seal that early stage hot grinding mill main axis system adopts asbestos cord to be wrapped on the main shaft sleeve is isolated high temperature and high pressure gas; because poor, the frequent of its sealing effectiveness, maintenance difficult; cause frequent shutdown to stop production; replaced by novel mechanically-sealing apparatus now, and accurate mechanically-sealing apparatus is easy to damage under the impact that is subject to High Temperature High Pressure.This shows, study and design a kind of pure water of normal temperature that utilizes and pass through the inner chamber that is linked into the main shaft mechanical sealing device of thermofiner place after water pump pressurizes, hang down the water cooling system of hot grinding mill main axis mechanical seal temperature by the cycle down of cooling water, to guarantee the normal operation of defibrator.
The utility model content: the purpose of this utility model is to remedy the deficiencies in the prior art, study and design a kind of pure water of normal temperature that utilizes and pass through the inner chamber that is linked into the main shaft mechanical sealing device of thermofiner place after water pump pressurizes, the temperature of the low hot grinding mill main axis mechanical seal of the cycle down by cooling water, thus the water cooling system of hot grinding mill main axis mechanical seal of the normal operation of defibrator guaranteed.
The technical scheme that realizes the utility model purpose is: a kind of water cooling system of hot grinding mill main axis mechanical seal, its feature comprises: for the cooling water tank of the pure water of drawing normal temperature, the water pump that connects cooling water tank through pipeline, pipeline is provided with between cooling water tank and water pump: the suction water filter, send the differential pressure transmitter device that alarm signal is used when suction water filter generation plugging fault; Inlet channel, flushing water inlet channel are provided with transfer valve between water pump and the mechanical seal inner chamber, be respectively equipped with on inlet channel between transfer valve and the mechanical seal inner chamber, the flushing water inlet channel: the press water water filter, send the differential pressure transmitter device that alarm signal is used when press water water filter generation plugging fault; Be communicated with the cooling water outlet pipe road between mechanical seal inner chamber and the cooling water tank, outlet conduit is provided with: safety valve, electromagnetic valve; Also be designed with accumulator on inlet channel between described water pump and the mechanical seal inner chamber, the flushing water inlet channel.
The described inlet gage that on pipeline between cooling water tank and the water pump, also is provided with.Also be respectively equipped with on inlet channel, the flushing water inlet channel between described transfer valve and the mechanical seal inner chamber: flowmeter, cooling water inlet gage, flushing water pressure table.Described cooling water outlet pipe also is provided with on the road: thermometer, cooling water pressure of return water table.
The course of work of the water cooling system of the hot grinding mill main axis mechanical seal that the utility model enforcement obtains is: the pure water of drawing normal temperature from cooling water tank flows into water pump through the suction water filter, after water pump is opened, the press water that produces divides two the tunnel through flowmeter inflow cooling water inlet pipe road and flushing water inlet channel through transfer valve and press water water filter, after cooling water and flushing water enter the cavity at mechanical seal place, take away by cooling water because High Temperature High Pressure makes the superheat of mechanical seal generation in service, and turn back to cooling water tank through return pipe, finish the circulating cooling to mechanical seal.
For the water cooling system that guarantees hot grinding mill main axis mechanical seal in situation about having a power failure suddenly continues the water supply of maintenance short time, with the mechanical seal of protection hot grinding mill main axis, disposed accumulator in the system.Described accumulator is a closed pressure vessel that can bear high pressure, high-pressure bottle one end is connected to the source of the gas of blowing plant, one end is connected to the press water pipeline, when water cooling system is not worked, 0.3MPa compressed air be full of container, when the cooling water pump working, the press water of 1.5MPa is pressed into accumulator by pipeline in the system, make the hydraulic pressure that keeps 1.5MPa in the accumulator, because the pipeline enclosure of accumulator and compressed air gas source is provided with check valve, press water can not enter gas circuit, when system has a power failure because of unexpected, when cooling water pump was out of service, the press water that is stored in accumulator inside entered cooling line, was not damaged to guarantee defibrator mechanical seal when inertia moves.
Be provided with safety valve in the system in order to ensure the safety of cooling water system pipeline.Be provided with inlet gage, discharge pressure table, flushing water inlet gage, cooling water inlet gage, cooling water pressure of return water table and energy storage pressure table in the system, the hydraulic pressure pressure of each point of difference display system pipeline, be provided with the return water temperature that thermometer shows water return pipeline in the system, to monitor the live telecast in the running.Also disposed stop valve, ball valve, check valve in the system as the usefulness of control and the adjustment of system, adopted corresponding diagram symbolic representation in the Figure of description, but considered that this is the general knowledge that those of ordinary skills know, so do not put on one by one label.Described water tank is an airtight stainless steel water tank, and its cooling water water source is the higher pure water of purity.The suction water filter of described mechanically-sealing apparatus water cooling system and press water water filter are as filtering cooling water, keep the pure device of water quality, and its supporting differential pressure transmitter device sending alarm signal when water filter generation plugging fault.The light-duty vertical type multi-stage centrifugal pump that described water pump adopts extraordinary water pump works to produce.Described transfer valve is installed on the press water outlet pipeline, is used for switching the press water water filter, and when wherein a water filter occured to stop up, differential pressure generator sent alarm signal, in time switches on another water filter by transfer valve.Described flowmeter is serially connected in the pipeline in cooling water and flushing water loop, is used for detecting the flow in these two loops, and wherein the metered flow used of flushing water is below 10L/min, and the metered flow that cooling water is used is below 25L/min.Described inlet gage is pressure vacuum gauge, and measurement category is 0.1-0.15MPa; The discharge pressure table is pressure vacuum gauge, and measurement category is 0-5MPa; Flushing water pressure table is pressure vacuum gauge, and measurement category is 0-5MPa; The cooling water inlet gage is electro connecting pressure gauge, and measurement category is 0-5MPa, and electro connecting pressure gauge is set certain numerical value, and the cooling water intake pressure reaches setting value and allows start, sends alarm signal when being lower than setting value; Cooling water pressure of return water table is electro connecting pressure gauge, and measurement category is 0-5MPa, and electro connecting pressure gauge is set certain numerical value, sends alarm signal, defibrator forced stoppage when reaching lower limit set value when pressure of return water is lower than setting value; The energy storage pressure table is electro connecting pressure gauge, and measurement category is 0-5MPa, and electro connecting pressure gauge is set certain numerical value, and defibrator water pump before operation can be started shooting when the electro connecting pressure gauge of accumulator reaches setting value to accumulator pressurizing.Described thermometer is the dual metal type thermometer, mainly shows the return water temperature of water return pipeline, monitors operating live telecast.Described accumulator volume is 0.25 cube, and rated pressure is 2.5MPa, and water cooling system allows the defibrator start at first to accumulator pressurizing when reaching setting value before defibrator starts; When System Sudden had a power failure, cooling water pump was out of service, and mechanically-sealing apparatus cools off by the press water that stores in the accumulator, was not damaged to guarantee defibrator mechanical seal when inertia moves; Described electromagnetic valve is that defibrator is used for standby pressure electromagnetic valve to accumulator pressurizing before start, get electronic work at accumulator pressurizing initial stage electromagnetic valve, the cooling water water return loop is closed, the pressure that system forms is to accumulator pressurizing, and when system pressure reached rated value, the electromagnetic valve dead electricity was opened, the cooling water water return loop is connected, when System Sudden has a power failure, because electromagnetic valve is that dead electricity is opened, so kept the normal circulation of cooling water.Described safety valve adopts spring loaded safety valve, and its set-pressure is that system's set-pressure increases 1MPa, in order to ensure the safety of cooling water system pipeline.
The water cooling system of the hot grinding mill main axis mechanical seal that the utility model enforcement obtains, through on probation, shown following beneficial effect: utilized the pure water of normal temperature to pass through the inner chamber that is linked into the mechanically-sealing apparatus place after water pump pressurizes, reduce the temperature of mechanical seal by the circulation of cooling water, effectively guarantee the normal operation of defibrator: the pure water water temperature of normal temperature is at 10-30 ℃, be pressurized to 1.5MPa through water pump, entering the mechanical seal inner chamber reaches 80-100 ℃ mechanical seal to temperature in service and carries out circulating cooling, make drop in temperature 40-50 ℃, leaving water temperature remains on about 40 ℃; When unexpected power failure or when breaking down, accumulator was kept the cooling water circuit 5-10 minute effectively, had guaranteed that defibrator mechanical seal when inertia moves is not damaged.
Description of drawings: Fig. 1 is structure and the operation logic schematic diagram that meets the utility model theme.
The specific embodiment: below in conjunction with accompanying drawing, be further described of the present utility model:
As shown in Figure 1, a kind of water cooling system of hot grinding mill main axis mechanical seal, hot grinding mill main axis mechanical seal 15, its feature comprises: for the cooling water tank 1 of the pure water of drawing normal temperature, the water pump 5 that connects water tank through pipeline, pipeline is provided with between water tank and water pump: suction water filter 2-1,2-2, send differential pressure transmitter device 3-1, the 3-2 that alarm signal is used when suction water filter generation plugging fault; Inlet channel 14, flushing water inlet channel 12 are provided with transfer valve 7 between water pump and the mechanical seal inner chamber, be respectively equipped with on inlet channel, the flushing water inlet channel between transfer valve and the mechanical seal inner chamber: press water water filter 8-1,8-2, send differential pressure transmitter device 9-1, the 9-2 that alarm signal is used when press water water filter generation plugging fault; Be communicated with cooling water outlet pipe road 16 between mechanical seal inner chamber and the water tank, outlet conduit is provided with: safety valve 19, electromagnetic valve 20; Also be designed with accumulator 21 on inlet channel, the flushing water inlet channel between described water pump and the mechanical seal inner chamber.
As shown in Figure 1, described accumulator 21 also is provided with the safety valve 23 that cooperates with it, compressed air gas source 24; Describedly also be provided with inlet gage 4 on the pipeline between water tank 1 and the water pump 5; Also be respectively equipped with on inlet channel, the flushing water inlet channel between described transfer valve and the mechanical seal inner chamber: flowmeter 10-1,10-2, cooling water inlet gage 13, flushing water pressure table 11; Also be provided with on the described cooling water outlet pipe road 16: thermometer 17, cooling water pressure of return water table 18.
By reference to the accompanying drawings 1, it is as follows to further specify running of the present utility model: be contained in the pure water in the airtight stainless steel water tank 1, be transported to light-duty vertical type multi-stage centrifugal pump 5 with suction filter 2-1, the 2-2 of a kind of device in pipe-line system by the road, the manual switchover valve 7 of device in pipe-line system is transported to press water filter 8-1, the 8-2 of device in pipe-line system with press water after water pump 5 is opened; Press water is being divided into two the tunnel through press water filter 8-1,8-2 after filtering, one the tunnel through the flowmeter 10-1 inflow cooling import of device in cooling import loop, another road flows into the rinse mouth of mechanical seal inner chamber at the flowmeter 10-2 in rinse mouth loop through device, mechanical seal is cooled off and washed, cooling water flows out through the coolant outlet of mechanical seal inner chamber, dead electricity was opened when device normally moved in system at the electromagnetic valve 20 of cooling water water return loop, and cooled cooling water is got back to water tank 1 through backwater electromagnetic valve 20.Suction water filter 2-1,2-2 and press water water filter 8-1,8-2 are as filtering cooling water, keep the pure device of water quality, and its supporting differential pressure transmitter device 3-1,3-2,9-1,9-2 sending alarm signal when water filter generation plugging fault; Transfer valve 7 is used for switching the press water water filter, and when wherein a water filter occured to stop up, differential pressure generator sent alarm signal, in time switches on another water filter by transfer valve; Flowmeter 10-1,10-2 are serially connected in the pipeline in cooling water and flushing water loop, are used for detecting the flow in these two loops, and cooling water flow in service is controlled at 12～15L/min, and the flow-control of flushing water is at 4L/min.
By reference to the accompanying drawings 1, it is as follows to further specify in the utility model the use procedure of accumulator: accumulator 21 is before the defibrator start, electromagnetic valve 20 gets electronic work, and the cooling water water return loop is closed, and the press water after press water filter 8-1,8-2 filter is to accumulator pressurizing, when pressure reaches setting value, 22 actions of accumulator electro connecting pressure gauge, electromagnetic valve 20 outages, the cooling water water return loop is connected, the operation of mechanical seal water cooling system, defibrator allow to start; When equipment because of suddenly outage, when cooling water pump 5 was out of service, the press water of accumulator 21 interior storages cooled off because accumulation of energy pressure turns back to mechanical seal, guarantees that defibrator mechanical seal when inertia moves is not damaged.
Claims (5)
1. the water cooling system of a hot grinding mill main axis mechanical seal, hot grinding mill main axis mechanical seal (15), its feature comprises: for the cooling water tank (1) of the pure water of drawing normal temperature, the water pump (5) that connects water tank through pipeline, pipeline is provided with between water tank and water pump: suction water filter (2-1,2-2), send differential pressure transmitter device (3-1), (3-2) that alarm signal is used when suction water filter generation plugging fault; Inlet channel (14), flushing water inlet channel (12) between water pump and the mechanical seal inner chamber are provided with transfer valve (7), be respectively equipped with on inlet channel, the flushing water inlet channel between transfer valve and the mechanical seal inner chamber: press water water filter (8-1,8-2), send the differential pressure transmitter device (9-1,9-2) that alarm signal is used when press water water filter generation plugging fault; Be communicated with cooling water outlet pipe road (16) between mechanical seal inner chamber and the water tank, outlet conduit is provided with: safety valve (19), electromagnetic valve (20); Also be designed with accumulator (21) between described water pump and the mechanical seal inner chamber on inlet channel, the flushing water inlet channel.
2. the water cooling system of hot grinding mill main axis mechanical seal according to claim 1 is characterized in that described accumulator (21) also is provided with safety valve (23), the compressed air gas source (24) that cooperates with it.
3. the water cooling system of hot grinding mill main axis mechanical seal according to claim 1 is characterized in that described being positioned between water tank (1) and the water pump (5) also is provided with inlet gage (4) on the pipeline.
4. the water cooling system of hot grinding mill main axis mechanical seal according to claim 1, it is characterized in that also being respectively equipped with on inlet channel, the flushing water inlet channel between described transfer valve and the mechanical seal inner chamber: flowmeter (10-1,10-2), cooling water inlet gage (13), flushing water pressure table (11).
5. the water cooling system of hot grinding mill main axis mechanical seal according to claim 1 is characterized in that also being provided with on the described cooling water outlet pipe road (16): thermometer (17), cooling water pressure of return water table (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294777 CN203247444U (en) | 2013-05-23 | 2013-05-23 | Water cooling system of defibrator spindle mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294777 CN203247444U (en) | 2013-05-23 | 2013-05-23 | Water cooling system of defibrator spindle mechanical seal |
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| Publication Number | Publication Date |
|---|---|
| CN203247444U true CN203247444U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320294777 Expired - Lifetime CN203247444U (en) | 2013-05-23 | 2013-05-23 | Water cooling system of defibrator spindle mechanical seal |
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| Country | Link |
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| CN (1) | CN203247444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266515A (en) * | 2013-05-23 | 2013-08-28 | 镇江市欧菱电气自动化系统设备有限公司 | Water cooling system for mechanical sealing of main shaft of defibrator |
| CN109128998A (en) * | 2018-10-17 | 2019-01-04 | 昱智机械自动化（上海）有限公司 | A kind of filter device for machining center |
-
2013
- 2013-05-23 CN CN 201320294777 patent/CN203247444U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266515A (en) * | 2013-05-23 | 2013-08-28 | 镇江市欧菱电气自动化系统设备有限公司 | Water cooling system for mechanical sealing of main shaft of defibrator |
| CN109128998A (en) * | 2018-10-17 | 2019-01-04 | 昱智机械自动化（上海）有限公司 | A kind of filter device for machining center |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
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| CX01 | Expiry of patent term |