CN104358689A - Seal oil circulation method and seal oil circulation system - Google Patents
Seal oil circulation method and seal oil circulation system Download PDFInfo
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- CN104358689A CN104358689A CN201410613124.7A CN201410613124A CN104358689A CN 104358689 A CN104358689 A CN 104358689A CN 201410613124 A CN201410613124 A CN 201410613124A CN 104358689 A CN104358689 A CN 104358689A
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Abstract
The invention discloses a seal oil circulation method and a seal oil circulation system. The method comprises the following steps: (1) seal oil in an oil tank is pressurized at first and then is filtered through a filter device to remove impurities; (2) after the filtered seal oil flows through an adjusting valve set, one part flows into a high oil groove and the other part flows into a sealed device; when the pressure in the sealed device is quickly released, the liquid level of the seal oil in the high oil groove is quickly increased; when the liquid level of the seal oil is increased to a predetermined height, a switch device on an oil discharge pipeline is turned on, and the seal oil flows into the oil tank through a pressure reduction valve; (3) the seal oil flowing into the sealed device enters the oil tank and enters next circulation by the way in the step (1). According to the seal oil circulation method, the situation that the seal oil enters a compressor cylinder due to cutoff of instrument air and quick release of pressure in the compressor cylinder can be prevented.
Description
Technical field
The present invention relates to a kind of sealing oil circulation method and the sealing oil circulatory system, relate to a kind of sealing oil circulation method for compressor and the sealing oil circulatory system specifically.
Background technique
In modern enterprise, compressor is as a kind of indispensable power running equipment, with advantages such as single-machine capacity is large, thermal transition efficiency is high, vapor flow high-speed and continuous, long service life, apply to the fields such as metallurgy, chemical industry, pharmacy, electric power, boats and ships, nuclear power widely.
Compressor is mainly used in gas to carry out pressure-raising, and the gas in compressor still has a small amount of gas to exosmosis after comb, for preventing this part gas leak, sealing oil plays the part of important role, sealing oil enters from the floating ring of unit, simultaneously laterally with interior side inflow, wherein most of sealing oil through floating ring to exosmosis, because this part gas does not contact with process gas, therefore oil sump tank continues to use together with lubricant oil, also having sub-fraction sealing oil to permeate in compressor through floating ring, for sealing the process gas after comb, preventing process gas from leaking; Because this part sealing oil contacts with process gas, therefore the sealing oil after contacting with process gas to be passed into deaerator, isolate gas wherein, then flow into fuel tank after entering the regeneration of deaerating tank bubbling and continue to use.
In traditional sealing oil circulatory system, when instrument air stops suddenly for seasonable, because the atmospheric valve of compressor and sealing oil modulating valve are all gas-tight valves, therefore atmospheric valve and sealing oil modulating valve all can be opened, on the one hand due to atmospheric valve standard-sized sheet, in-cylinder pressure is let out too fast, and reference gas pressure will be caused to reduce, and the pressure reduction of sealing oil and reference gas increases; On the other hand due to sealing oil modulating valve standard-sized sheet, sealing oil liquid level goes up very fast, as regulated not in time, sealing oil can be caused to flow in the cylinder of compressor from reference gas pipeline and labyrinth seal, cause process gas to be subject to the pollution of sealing oil, the process gas polluted can not be discharged in time, and the catalyst activity of synthesis tower can be caused to reduce, even can loss of activity, cause serious consequence.
Summary of the invention
The object of this invention is to provide a kind of sealing oil circulation method, its can prevent because of instrument air be cut off, quick pressure releasing and situation that the sealing oil that causes enters in compressor cylinder occurs in compressor cylinder.
Another object of the present invention is to provide a kind of sealing oil circulatory system, its can prevent because of instrument air be cut off, quick pressure releasing and situation that the sealing oil that causes enters in compressor cylinder occurs in compressor cylinder.
To achieve these goals, technical solution of the present invention is: a kind of sealing oil circulation method, the method comprises the steps: 1) sealing oil in fuel tank first pressurizes through pressurization device, device filters out impurities after filtration again, 2) above-mentioned sealing oil after filtering flows through modulating valve group, then two-way is divided into, one road flows into high tank, another part flows into by seal arrangement, when quick pressure releasing inner by seal arrangement, sealing oil liquid level in high tank rises fast, when sealing oil liquid level rises to predetermined altitude, switch gear on drain line is opened, sealing oil flows into fuel tank through reduction valve, 3) inflow is got back to fuel tank by the part in the sealing oil of seal arrangement from being flowed out by the outside of seal arrangement, another part enters by seal arrangement inner, this part sealing oil together with by the process gas in seal arrangement after gas and oil separating plant, oil product enters fuel tank, entering the sealing oil of fuel tank by above-mentioned steps 1) described mode enters and circulates next time.
Sealing oil circulation method of the present invention, wherein, described switch gear comprises ball float, mercury-balance device, chromacoder, modulating valve, and ball float top connects mercury-balance device, mercury-balance device connection signal conversion equipment, and chromacoder connects modulating valve, in described step 2) in, when sealing oil enters in drain line, held up by ball float, now mercury-balance device tilts, after chromacoder, make modulating valve open, sealing oil gets back to fuel tank after reduction valve.
Sealing oil circulation method of the present invention, wherein, described filtrating equipment comprises the first filter, second filter, six-way valve, equalizer valve, described first, the outlet end of the second oil pump connects the first port of described six-way valve, entering of described first filter, outlet end connects second of six-way valve respectively, third connectivity mouth, entering of described second filter, outlet end connects the 6th of six-way valve the respectively, five-way mouth, 4th port of described six-way valve connects described modulating valve group, described first, connecting pipeline is provided with between second filter, described equalizer valve is located on this connecting pipeline, in described step 1) in, first port of sealing oil through six-way valve after pressurization device pressurization enters six-way valve, the sealing oil entered in six-way valve enters the first filter through the second port, sealing oil after the first metre filter enters six-way valve through third connectivity mouth, the 4th port again through six-way valve flows out, enter the sealing oil in six-way valve or enter the second filter through the 6th port, sealing oil after the second metre filter enters six-way valve through five-way mouth, the 4th port again through six-way valve flows out.
A kind of sealing oil circulatory system, comprise high tank, the outlet end of high tank connects gas and oil separating plant, fuel tank successively, the outlet end of fuel tank connects pressurization device, filtrating equipment successively, the outlet end of filtrating equipment connects entrance point and the sealing floating ring of high tank respectively, the outlet end of filtrating equipment and high tank and seal in the middle of floating ring and be provided with modulating valve group, described high tank is provided with drain line, and drain line is provided with reduction valve and switch gear.
The sealing oil circulatory system of the present invention, wherein, described switch gear comprises ball float, mercury-balance device, chromacoder, modulating valve, and ball float top connects mercury-balance device, mercury-balance device connection signal conversion equipment, and chromacoder connects modulating valve.
The sealing oil circulatory system of the present invention, wherein, described pressurization device comprises first, second oil pump be set up in parallel.
The sealing oil circulatory system of the present invention, wherein, described filtrating equipment comprises the first filter, second filter, six-way valve, equalizer valve, described first, the outlet end of the second oil pump connects the first port of described six-way valve, entering of described first filter, outlet end connects second of six-way valve respectively, third connectivity mouth, entering of described second filter, outlet end connects the 6th of six-way valve the respectively, five-way mouth, 4th port of described six-way valve connects described modulating valve group, described first, connecting pipeline is provided with between second filter, described equalizer valve is located on this connecting pipeline.
The sealing oil circulatory system of the present invention, wherein, described connecting pipeline is also provided with restriction orifice.
Sealing oil circulation method of the present invention, difference from prior art is when the sealing oil liquid level in high tank rises fast, switch gear on drain line is opened, sealing oil flows into fuel tank through reduction valve, can prevent in an emergency situation, namely when misoperation or disconnected instrument air, sealing oil enters by seal arrangement cylinder, pollutes process gas.
The sealing oil circulatory system of the present invention, difference from prior art is that high tank is provided with drain line, drain line is provided with reduction valve and switch gear, when the sealing oil liquid level in high tank rises fast, switch gear on drain line is opened, sealing oil flows into fuel tank through reduction valve, can prevent in an emergency situation, namely when misoperation or disconnected instrument air, sealing oil enters by seal arrangement cylinder, pollute process gas, and it is simple to operate, cost is low, modulating valve can be automatic, also artificially manually valve position can be inputted, according to the height of sealing oil liquid level, sealing oil is let out and removes.
In addition, because the ball float of switch gear floats by oil product, oil product plays the object of lubrication ball float outside ball float, and the situation that ball float Yin Kasai can not be caused to cause liquid level discharge do not fall occurs, Equilibrator employing be mercury-balance device, mercury electro-conducting control is better, prevent the phenomenon that circuit is obstructed, owing to contacting with process gas, so need not through deaerating tank from native system pipeline sealing oil out, directly can get back to fuel tank to continue to use, make system architecture simpler.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the sealing oil circulatory system of the present invention.
Embodiment
As shown in Figure 1, the sealing oil circulatory system of the present invention, comprise high tank 11, the outlet end of high tank 11 connects gas and oil separating plant 12 successively by pipeline, fuel tank 13, gas and oil separating plant 12 Joining Technology gas re-use device 31, the outlet end of fuel tank 13 connects pressurization device 14 successively by pipeline, filtrating equipment 15, the outlet end of filtrating equipment 15 is connected with outlet line 41, outlet line 41 connects the entrance point of high tank 11 and the sealing floating ring 21 of compressor 51 respectively, the reference gas 61 for adjusting the reference frame of sealing oil liquid level is connected with between compressor 51 and high tank 11, outlet line 41 is provided with modulating valve group 16, high tank 11 is provided with liquid level and takes into account drain line 111, drain line 111 is provided with reduction valve 112 and switch gear, pressurization device 14 comprises be set up in parallel first, second oil pump 141, 142, switch gear comprises ball float 113, mercury-balance device 114, chromacoder 115, modulating valve 116, ball float 113 top connects mercury-balance device 114, mercury-balance device 114 connection signal conversion equipment 115, chromacoder 115 connects modulating valve 116.
For preventing causing sealing oil circuit to interrupt because filtrating equipment breaks down, filtrating equipment 15 comprises the first filter 151, second filter 152, six-way valve 153, equalizer valve 154, restriction orifice 155, first, second oil pump 141, the outlet end of 142 connects the first port of six-way valve 153, entering of first filter 151, outlet end connects second of six-way valve 153 respectively, third connectivity mouth, entering of second filter 152, outlet end connects the 6th of six-way valve 153 the respectively, five-way mouth, 4th port of six-way valve 153 connects modulating valve group 16, first, second filter 151, connecting pipeline 156 is provided with between 152, equalizer valve 154, restriction orifice 155 is located on this connecting pipeline 156, sealing oil can be filtered through the first filter 151 or the second filter 152, when after the first filter 151 more renew cartridge, equalizer valve 154 can be opened, the sealing oil in the second filter 152 is made to be filled with the first filter 151.
The sealing oil circulatory system of the present invention is also applicable to the system of any use sealing oil device except compressor.
The present invention adopts the above-mentioned sealing oil circulatory system to carry out the method for sealing oil circulation, and the method comprises the steps:
1) sealing oil in fuel tank 13 is pressurizeed through first pressurization device 14, device 15 filters out impurities after filtration again,
2) above-mentioned sealing oil after filtering flows through modulating valve group 16, then two-way is divided into, one road flows into high tank 11, another part flows into the sealing floating ring 21 of compressor 51, this a part of sealing oil is leaned on the pressure reduction between the static energy of the gas in compressor 51 cylinder in reference gas and high tank to maintain gas in the jar and is not leaked, when sealing oil supply is interrupted suddenly, high tank 11 provides sealing oil for compressor 51, when occurring that misoperation or instrument air stop suddenly for seasonable, the inner quick pressure releasing of compressor 51, modulating valve group 16 is opened and is caused the sealing oil liquid level in high tank 11 to rise fast, liquid level is can read by level meter, when sealing oil liquid level rises to predetermined altitude, by manual operation or the switch gear opened by the mode automatically controlled on drain line 111, sealing oil is made to flow into fuel tank 13 through reduction valve 112, instead of enter in compressor 51 cylinder by reference to feed channel 61, and then affect the gaseous mass of process gas in compressor cylinder,
3) part flowed in the sealing oil in the sealing floating ring 21 of compressor 51 flows out from the outside of sealing floating ring 21 gets back to fuel tank 13, another part enters by sealing floating ring 21, this part sealing oil together with the process gas in compressor 51 after gas and oil separating plant 12, oil product enters fuel tank 13, process gas enters process gas re-use device 31, entering the sealing oil of fuel tank 13 by above-mentioned steps 1) described mode enters and circulates next time, reuse.
Can automatically control for making switch gear, make operation simpler, convenient, switch gear comprises ball float 113, mercury-balance device 114, chromacoder 115, modulating valve 116, ball float 113 top connects mercury-balance device 114, mercury-balance device 114 connection signal conversion equipment 115, chromacoder 115 connects modulating valve 116, in step 2) in, under normal circumstances, ball float 113 is still in bottom by Action of Gravity Field, the node of mercury-balance device 114 is the left side and centre, now circuit disconnects, chromacoder 115 does not work, once operating mode occurs abnormal, in high tank 11, liquid level rises very fast, oil product arrives drain line 111, ball float is subject to floating function, the node left side of mercury-balance device 114 and in separated, the right and middle node are connected, circuit will close, form loop, now chromacoder 115 works, this output signal is converted to electrical signal, open modulating valve 116, sealing oil gets back to fuel tank 13 after reduction valve 112, ensure that oil product can not enter in the cylinder of compressor 51, prevent oil pollution process gas.
In described step 1) in, first port of sealing oil through six-way valve 153 after pressurization device 14 pressurizes enters six-way valve, the sealing oil entered in six-way valve 153 enters the first filter 151 through the second port, sealing oil after the first filter 151 filters enters six-way valve 153 through third connectivity mouth, the 4th port again through six-way valve 153 flows out, the sealing oil entered in six-way valve 153 can also enter the second filter 152 through the 6th port, sealing oil after the second filter 152 filters enters six-way valve 153 through five-way mouth, the 4th port again through six-way valve 153 flows out.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in related domain make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (8)
1. a sealing oil circulation method, it is characterized in that: the method comprises the steps: 1) sealing oil in fuel tank (13) first pressurizes through pressurization device (14), device (15) filters out impurities after filtration again, 2) above-mentioned sealing oil after filtering flows through modulating valve group (16), then two-way is divided into, one road flows into high tank (11), another part flows into by seal arrangement, when quick pressure releasing inner by seal arrangement, sealing oil liquid level in high tank (11) rises fast, when sealing oil liquid level rises to predetermined altitude, switch gear on drain line (111) is opened, sealing oil flows into fuel tank (13) through reduction valve (112), 3) inflow is got back to fuel tank (13) by the part in the sealing oil of seal arrangement from being flowed out by the outside of seal arrangement, another part enters by seal arrangement inner, this part sealing oil together with by the process gas in seal arrangement after gas and oil separating plant (12), oil product enters fuel tank (13), entering the sealing oil of fuel tank (13) by above-mentioned steps 1) described mode enters and circulates next time.
2. sealing oil circulation method as claimed in claim 1, it is characterized in that: described switch gear comprises ball float (113), mercury-balance device (114), chromacoder (115), modulating valve (116), ball float (113) top connects mercury-balance device (114), mercury-balance device (114) connection signal conversion equipment (115), chromacoder (115) connects modulating valve (116), in described step 2) in, when sealing oil enters in drain line (111), ball float (113) is held up, now mercury-balance device (114) tilts, after chromacoder (115), make modulating valve (116) open, sealing oil gets back to fuel tank (13) after reduction valve (112).
3. sealing oil circulation method as claimed in claim 2, it is characterized in that: described filtrating equipment (15) comprises the first filter (151), second filter (152), six-way valve (153), equalizer valve (154), described first, second oil pump (141, 142) outlet end connects the first port of described six-way valve, entering of described first filter (151), outlet end connects second of six-way valve (153) respectively, third connectivity mouth, entering of described second filter (152), outlet end connects the 6th of six-way valve (153) the respectively, five-way mouth, 4th port of described six-way valve (153) connects described modulating valve group (16), described first, second filter (151, 152) connecting pipeline (156) is provided with between, described equalizer valve (154) is located on this connecting pipeline (156), in described step 1) in, first port of sealing oil through six-way valve (153) after pressurization device (14) pressurization enters six-way valve, the sealing oil entered in six-way valve (153) enters the first filter (151) through the second port, sealing oil after the first filter (151) filters enters six-way valve (153) through third connectivity mouth, the 4th port again through six-way valve (153) flows out, enter the sealing oil in six-way valve (153) or enter the second filter (152) through the 6th port, sealing oil after the second filter (152) filters enters six-way valve (153) through five-way mouth, the 4th port again through six-way valve (153) flows out.
4. a sealing oil circulatory system, comprise high tank (11), the outlet end of high tank (11) connects gas and oil separating plant (12) successively, fuel tank (13), the outlet end of fuel tank (13) connects pressurization device (14) successively, filtrating equipment (15), the outlet end of filtrating equipment (15) connects entrance point and sealing floating ring (21) of high tank (11) respectively, outlet end and the high tank (11) of filtrating equipment (15) and seal in the middle of floating ring (21) and be provided with modulating valve group (16), it is characterized in that: described high tank (11) is provided with drain line (111), drain line (111) is provided with reduction valve (112) and switch gear.
5. the sealing oil circulatory system as claimed in claim 4, it is characterized in that: described switch gear comprises ball float (113), mercury-balance device (114), chromacoder (115), modulating valve (116), ball float (113) top connects mercury-balance device (114), mercury-balance device (114) connection signal conversion equipment (115), and chromacoder (115) connects modulating valve (116).
6. the oil sealing circulatory system as claimed in claim 5, is characterized in that: described pressurization device (14) comprises first, second oil pump (141,142) be set up in parallel.
7. the oil sealing circulatory system as claimed in claim 6, it is characterized in that: described filtrating equipment (15) comprises the first filter (151), second filter (152), six-way valve (153), equalizer valve (154), described first, second oil pump (141, 142) outlet end connects the first port of described six-way valve, entering of described first filter (151), outlet end connects second of six-way valve (153) respectively, third connectivity mouth, entering of described second filter (152), outlet end connects the 6th of six-way valve (153) the respectively, five-way mouth, 4th port of described six-way valve (153) connects described modulating valve group (16), described first, second filter (151, 152) connecting pipeline (156) is provided with between, described equalizer valve (154) is located on this connecting pipeline (156).
8. the oil sealing circulatory system as claimed in claim 7, is characterized in that: described connecting pipeline (156) is also provided with restriction orifice (155).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613124.7A CN104358689B (en) | 2014-11-03 | 2014-11-03 | A kind of Seal Oil round-robin method and Seal Oil blood circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613124.7A CN104358689B (en) | 2014-11-03 | 2014-11-03 | A kind of Seal Oil round-robin method and Seal Oil blood circulation |
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| Publication Number | Publication Date |
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| CN104358689A true CN104358689A (en) | 2015-02-18 |
| CN104358689B CN104358689B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410613124.7A Expired - Fee Related CN104358689B (en) | 2014-11-03 | 2014-11-03 | A kind of Seal Oil round-robin method and Seal Oil blood circulation |
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| Country | Link |
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Cited By (3)
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|---|---|---|---|---|
| CN105464945A (en) * | 2015-12-27 | 2016-04-06 | 安徽淮化股份有限公司 | Oil seal system for compressor |
| CN112522984A (en) * | 2020-12-17 | 2021-03-19 | 淄博泰鼎机械科技有限公司 | Shoe type presser |
| CN114669560A (en) * | 2022-03-24 | 2022-06-28 | 三门核电有限公司 | Washing unit for generator sealing oil system |
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Cited By (6)
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| CN112522984A (en) * | 2020-12-17 | 2021-03-19 | 淄博泰鼎机械科技有限公司 | Shoe type presser |
| CN112522984B (en) * | 2020-12-17 | 2022-06-07 | 淄博泰鼎机械科技有限公司 | Shoe type presser |
| CN114669560A (en) * | 2022-03-24 | 2022-06-28 | 三门核电有限公司 | Washing unit for generator sealing oil system |
| CN114669560B (en) * | 2022-03-24 | 2023-08-15 | 三门核电有限公司 | Flushing device for sealing oil system of generator |
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| CN104358689B (en) | 2016-08-17 |
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Effective date of registration: 20210428 Address after: 234000 No. 157, Xichang Road, Suzhou, Anhui Patentee after: WANBEI COAL-ELECTRICITY GROUP Co.,Ltd. Address before: 232038 Anhui Province, Huainan city tianjia'an District Quanshan Anhui Huaihua Limited by Share Ltd Technology Development Center Patentee before: ANHUI HUAIHUA Co.,Ltd. |
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