CN2288763Y - Self-control self-check high efficiency vacuum oil filter - Google Patents

Abstract

The utility model relates to a self-control self-check high efficiency vacuum oil filter, which is composed of a programmable controller, a voltage withstand self detector, a digital temperature control instrument, an electronic sensor, an automatic controller for labyrinth type foams, a flow balanced valve, a condensation water separator, a double stage vacuum pump, an oil pump with high sealing, a water pump, an atomizing allotter, an infrared heater, a high efficiency separating column, and a tertiary filter. The utility model can conduct full automatic intelligent purifying operation and self voltage withstand for ineffective insulating oil. The utility model has the advantages of vacuum oil filling, complete function, less interference from electric networks, convenient operation, high efficiency for dehydration and degassing, high precision, and low failure rate, and can be separated from a computer system during hand operation.

Description

A kind of automatic control self check high-efficiency vacuum oil filter

The utility model is a kind of modified automatic vacuum oil filter, has automatic control, self check, characteristics of high efficiency, belongs to electric insulation oil purification equipment.

Present oil filtering unit both domestic and external mainly is based on manually, complex operation and inconvenience.The fully automatic vacuum oil filter of Chu Xianing in recent years mainly adopts the relay of compositions such as traditional time relay, sensitive relay, sequence controller to connect the angle and hard touch controls mode such as touches, and circuit complexity, function are limited, poor reliability, program are difficult for adjusting.Though indivedual producers also once produced the computer-shape full-automatic oil filtering machine as a trial, unreasonable because of circuit, function is few, low, the weak effect of efficient, and on the other hand, existing automatic oil filter does not all have the vacuum oil function, makes the purposes of equipment limited; Do not carry out the function of breakdown voltage circulation self check yet, deliver to laboratory's detection again, operation inconvenience by the artificial oil sample that constantly takes out fully purifying oil; In the engineering reality, in the time will carrying out individual event running or debugging, maintenance to equipment, must use manual function, the computer system and the manual state of existing computer-shape oil filter places one's entire reliance upon, in case computer system has fault slightly, then all manual functions are malfunctioning fully, even want to take emergent manual mode debug, keep in repair or want to work on finish all become impossible; In addition, existing oil filter generally adopts double-filtration, and filter effect is relatively poor; Vavuum pump and water vapour are taked the nature cooling; And take the traditional vacuum knockout tower, make separative efficiency can not get improving: secondly, to make misprogramming, produce misoperation, the fault rate height because the constantly automatically frequent break-make of high-power heater makes powerful electric current cause serious interference to computer system.

The purpose of this utility model is to provide a kind of improved automatic vacuum oil filter, it is full-automatic that it has intelligence, self check, characteristics of high efficiency, it is than domestic and international existing product perfect in shape and function, the purification efficiency height, use easy and simple to handle, fault rate is low, easy-maintaining, but both fully-automatic intelligent runnings, can throw off the computer system manual operation fully again, and the filtering accuracy height, this machine also can provide " vacuum oil " service function required in the engineering to power equipment, this machine can also provide the breakdown voltage detected value that purifies oil at any time automatically, can easily know whether and can finish purification work.

Principle of the present utility model is to utilize the big boiling-point difference of contained harmful moisture content existence in oil and the oil, the boiling point of water can descend greatly under high vacuum state, make in the vacuum tank that the oil film surface expands many times having, moisture content in the moisture fluid after the heating can be overflowed fast and be evaporated, make insulating oil obtain vacuum drying efficiently, filter in conjunction with multi-stage mechanical again, make oil reach qualified requirement.The utility model replaces human brain to finish identification, the analysis to various states and realize automatic control by programmable controller; it is according to the Signals ﹠ Systems theory; change with oil level variation, variations in temperature, pressure; various states signals such as gassiness, oily breakdown voltage, heated protective, vacuum variation are the input controlled quentity controlled variable of cyclelog in Water in oil, the oil; each performance element of complete machine is controlled, realized the Automatic Control operation.

The utility model has the advantages that: because each executive component is controlled by computer, and adopted advanced electronic sensor, during full-automatic the running, starting or stoping all only needs by a button, machine will detect, discern automatically, analyze comparison automatically to the parameter of each unit, from motion tracking, automatically adjust, realize the running of programme-control and logic, operate simple especially; When machine places manual state, do not rely on computer system fully, the common disadvantage that manual system can not operate as normal when having avoided computer system that fault is arranged; Profit vacuum separation of the present utility model is to carry out on the very big knockout tower of effective area, in conjunction with effective circulating water cooling system, makes separative efficiency very high; The utility model has the function that the insulation voltage of the fluid that flows is realized self check; Also has the vacuum oil function.

Structural representation of the present utility model such as Fig. 1, it is by check valve (1), three grades of accurate filters (2), flow balance valve (3), overflow valve (4), circulation adds thermoelectrical magnetic valve (5) fast, secondary horizontal filter (6), vacuum oil level sight window (7), oil-feed internally piloted valve (8), thick slag drain (9), grade one filter (10), oil whip automatic control solenoid valve (11), oil level automatic controller (12), oil-out (13), insulating oil resistance test lubricating cup (14), big surface isolation tower (15), switch board (16), infrared heater (17), vacuum separation tank (18), Pressure gauge (19), digital temperature control instrument (20), vacuum meter (21), oil atomization distributor (22), labyrinth type foam controller (23), condensation water knockout drum (24), water tank (25), condensed water drain valve (26), vacuum oil extraction valve (27), vacuum solenoid (28), pump oil control valve (29), coolant pump (30), pump oil regenerator (31), manual charge valve (32), two-stage vacuum pump (33), gas ballast valve (34), high sealing oil drain pump (35) is formed.

Electrical schematic diagram of the present utility model such as Fig. 2, it is by programmable controller (C20P), oil level electronic sensor (1LJ), foam electronic sensor (2LJ) disappears, heating electronic sensor (3LJ), insulating oil detector (GZJ), isolating transformer (B2), single 6V transformer (B1), digital temperature control instrument (WSK), circulation adds thermoelectrical magnetic valve (1DT) fast, oil-feed automatic control solenoid valve (2DT), oil whip automatic control solenoid valve (3DT), vacuum solenoid (4DT), status switch (X), full-automatic start button (QA), full-automatic stop button (TA), the full-automatic indicator lamp (XD6) that starts, automatically stop indicator lamp (XD5), oil pump stops indicator lamp (XD4), pump start indicator lamp (XD3), vavuum pump stops indicator lamp (XD2), vavuum pump starts indicator lamp (XD1), A.C. contactor (C1, C2, C3, C4, C5, C6), automatic air-break switch (HK), fuse (1RD), fuse (2RD), fuse (3RD), fuse (4RD), two-stage vacuum pump (1D), oil drain pump (2D), coolant pump (3D), oil-feed internally piloted valve (2DT), vavuum pump stop button (1TA), vavuum pump start button (1QA), oil drain pump stop button (2TA), oil drain pump start button (2QA), power supply indicator (D1), heating starting indicator lamp (D2) is formed.The programming Control of complete machine is realized by C20P, C20P is by the isolating transformer B2 power supply that directly links to each other, the oil level electronic sensor 1LJ that links to each other with it, the foam electronic sensor 2LJ that disappears, heating electronic sensor 3LJ, insulating oil detector GZJ are depended in the control of C20P, after C20P handles these detection signals, control the action of 1DT, 2DT, 3DT, 4DT again, wherein 2DT directly is not connected with C20P with 4DT, 2DT is connected with 5C by 1C, and 4DT is connected by 1C, and indicator lamp XD1, XD2, XD3, XD4, XD5, XD6 power by B1.

The course of work of the present utility model following (contrast Fig. 1, Fig. 2):

During auto state, start or only to need to stop all by a button.

Earlier automatic switch K is placed automated location before the fully automatic operation, during startup, press full-automatic start button QA, two-stage vacuum pump (33) at first turns round, vacuum solenoid (28) is opened automatically simultaneously, oil whip automatic control solenoid valve (11) is closed, oil-feed internally piloted valve (8) is closed, the PC internal timer starts, after about 2 minutes, vacuum reaches maximum in the vacuum separation tank, oil-feed internally piloted valve (8) is opened automatically, and fluid to be clean is through internally piloted valve (8), grade one filter (10), oil level automatic controller (12), infrared heater (17), atomizing distributor (22) forms very big vaporific of surface area.And distribution uniformly is transported on the efficient big surface isolation tower (15), form the oil film of bigger effective surface area, steam evaporates in a large number and handles through foam self-controller (23), row is to the space after condensation water knockout drum (24) dehydration, the fluid that evaporates the part of anhydrating through knockout tower sinks to the bottom, the interior oil level of knockout drum (18) rises, when reaching near the normal position oily window (7) center line, detect oil level signal by electronic sensor in the jar, after giving the C20P processing, control oil drain pump (35) starts, when detecting oily temperature, the sensor on the infrared heater (17) is lower than when temperature is set subsequently, by C20P control fluid is carried out heated at constant temperature, be dried fluid after the dehydration through secondary horizontal filter (6) elimination impurity once more, handle dynamic balancing valve (3) and regulate flow, improve pressure through oil drain pump (35), through check valve (anti-return), make fine filtering through three grades of fine filters (2), the clean corrected oil of many parts is exported from oil-out (13), small part oil detects through insulating oil resistance test lubricating cup (14) shunting, and periodically demonstrates the withstand voltage of fluid.When the moisture a lot of and vacuum of fluid is very high, oil whip can sharply rise in the knockout drum, have a strong impact on normally carrying out of water-oil separating, this moment, the foam electronic sensor (2LJ) that disappears on labyrinth type foam controller (23) top can be given cyclelog (C20P) with monitor signal, C20P can be according to different situations, and control foam automatic control solenoid valve (11) is opened slightly, sends into air carrier, suitably regulate required separate vacuum degree, make it reach the optimal separation effect.In the initial operation phase, reach separation requirement rapidly for making heating-up temperature, fast circulation adds thermoelectrical magnetic valve (5) and can open automatically, the machine inner fluid of the making heat temperature raising that circulates fast.

During full auto stop; press the TA button; at first infrared heater meeting automatic disconnection, fluid continues circulation, after the heating system cooling; oil-feed internally piloted valve (8) can be closed; and stop vavuum pump (33), and close vacuum solenoid (28) simultaneously, open magnetic valve (11) and in jar, inflate; treat to stop oil drain pump automatically after fluid drains, complete machine stops then.

Vacuum oil extraction valve (27) is for to new power transformer, or the power equipment after the overhaul carries out vacuum oil and is provided with, it can guarantee that power equipment is in the first time charge of oil or the oiling specification requirement during oiling again, both saved and be equipped with the addition of vacuum system, and can make coil, iron core, the refill of oiling equipment obtain drying again.

Fig. 3 is the structure chart of labyrinth type foam controller (23), and it is made up of: steam inlet pipe (36), housing (37), the first filter foam net (38), the second filter foam net (39), the 3rd filter foam net (40), the foam electronic sensor (41) that disappears, the 4th filter foam net (42), upper spacer (43), lower clapboard (44), extraction steam pipe (45), oil return pipe (46).Labyrinth type foam controller (23) by upper spacer (43), lower clapboard (44), be separated into about two big chambeies and middle double wall, three metafiltration foam nets (38), (39), (40) are equipped with in the chamber in a left side, the foam electronic sensor (41) that disappears is equipped with on top, bottom steam inlet pipe and vacuum separation tank (18) top links, extraction steam pipe (45) is equipped with on top, right chamber, the 4th filter foam net (42) is equipped with at the middle part, and the bottom is provided with oil return pipe (46), and the other end and the vacuum separation tank of (46) link.Moisture when too many when being cleaned oil, because heating and vacuum are too high, make that wet oil liquid is long-pending sharply to expand in the purification process, vaporization is quickened, and water vapour increases, and a large amount of bubbles mix the formation oil whip with light oil, be easy to by the vavuum pump extraction generation fuel injection event.In order to solve this contradiction, usually to manually constantly turn down vacuum, both bothered, separative efficiency is low again.The labyrinth type foam controller has been arranged, oil whip passes through multistage filter foam net (38), (39), (40) decomposition and removes and defoams in left chamber, the middle double wall that lower clapboard on the process (43) and (44) form, make a small amount of fluid sink to bottom, right chamber, fluid separately sends back in the vacuum tank by bottom oil return pipe (46), a large amount of steam will not have oily non-foam water vapour by extraction steam pipe (45) at last and will deliver to the condenser cooling upwards through filtering foam net (42) elimination foam again; Arrange in the air through two-stage vacuum pump again.If vaporization is too violent, idol has foam to dash forward three grades of filter screens of left end and reaches the top, after the foam electronic sensor that disappears can be delivered to this signal that measures and analyze relatively in the C20P controller, and the upper left foam automatic control solenoid valve of control knockout drum 3DT, the automatic fine tuning optimal vacuum pressure, thus foam eliminated.Because 3DT is contained on the knockout drum far-end apart from extraction steam pipe (45), after 3DT opens, the air of sending into will be as a kind of carrier, because 3DT is far with extraction steam pipe (45), makes the air sent into by 3DT enough distances be arranged in that arrival (45) is preceding, adequate time and space are arranged, a jar interior water vapour is mixed with it, get rid of effectively, both controlled foam with the eliminating of gas, realize the dehydration of drawing gas fast again, improved separative efficiency.

Fig. 4 is the structural representation of secondary horizontal filter, it is by bolt (47), end cap (48), rubber cushion (49), housing (50), filter core (51), blowoff valve (52), form with connection swivel nut (53), it is installed on the vacuum separation tank below, oil-out connects high sealing oil drain pump (35) import, its left end is by bolt (47), end cap (48) and rubber cushion (49) are formed demountable structure, the bottom is provided with blowoff valve (52), it can prevent effectively that jar interior impurity from entering oil drain pump, it takes horizontal type to install, the outside oil-feed of filter core, the mode that heart portion is fuel-displaced, solved preferably and generally taked to advance to go out in the oil stream herein, make dregs be contained in the shortcoming of inner not only easily stifled but also difficult cleaning, also solved the shortcoming of the inconvenient repair demolition of vertical installation.

Fig. 5 is the structure chart of condensation water knockout drum, and it is made up of housing (56), round intestines type condensate pipe (57), inside and outside condensation chamber shading ring (58), steam inlet pipe (59), water inlet pipe (60), return pipe (61), blast pipe (62), draining valve (54), water storage glass cover (55).Condensation water knockout drum (24) utilizes the circulating water in the round intestines type condensate pipe (57) to realize cooling, condensate pipe (57) is helical disk intestines shapes, be separated into ectonexine by taper shading ring (58), the path that gas is passed by increases, to increase condensation effect, steam inlet pipe (59) links with foam controller (23), gland steam exhauster (62) links with two-stage vacuum pump, water inlet pipe (60) links with the vavuum pump water pipe, return pipe (61) connects with water tank, water storage glass cover (55) is equipped with in the bottom, and condensate pipe adopts Ф 12 copper tubes.High-temperature water vapor is entered by steam inlet pipe (59) in the vacuum knockout drum, in exocoel, from top to bottom cooled off earlier by skin dish intestinal tube group, then from bottom to top cooled off by the inner tube group, the big temperature difference makes water vapour become the globule in the cooling system surface condensation, reclaimed by the glass cover, the gas after the dehydration is exported by blast pipe (62).

Fig. 6 is the structural representation of insulating oil resistance test lubricating cup (14), it is made up of the closed lubricating cup body of high-frequency ceramic (63), oil-in pipe joint (64), O-ring seal (65), left end copper electrode (66), oil-out pipe joint (67), O-ring seal (68), right-hand member copper electrode (69), nut (8), the oil inlet and outlet latus rectum is Ф 5, the oil flow path direction is for from bottom to top, two electrode gaps are 2 ± 0.02, existing insulating oil resistance test instrument is the open type lubricating cup both at home and abroad, do not pass in and out tubing interface, can only test static fluid.This lubricating cup is connected in parallel on the fuel-displaced pipeline of vacuum oil-filter, and the oil of process purified treatment has sub-fraction to be shunted by lubricating cup, and when oil stream slowly flows through from top to down, voltage-withstand test will periodically be carried out to fluid in the two poles of the earth, the left and right sides under computer control, and will show the result.

Claims (2)

1, a kind of high-efficiency vacuum oil filter of automatic control self check, it mainly comprises three grades of accurate filters (2), flow balance valve (3), circulation adds thermoelectrical magnetic valve (5) fast, secondary horizontal filter (6), oil-feed internally piloted valve (8), grade one filter (10), oil whip automatic control solenoid valve (11), oil level automatic controller (12), insulating oil resistance test lubricating cup (14), big surface isolation tower (15), switch board (16), infrared heater (17), vacuum separation tank (18), digital temperature control instrument (20), oil atomization distributor (22), labyrinth type foam controller (23), condensation water knockout drum (24), water tank (25), condensed water drain valve (26), vacuum oil extraction valve (27), vacuum solenoid (28), coolant pump (30), pump oil regenerator (31), two-stage vacuum pump (33), high sealing oil drain pump (35), electrical equipments etc. is characterized in that:

1., its circuit is by programmable controller (C20P), oil level electronic sensor (1LJ), the foam electronic sensor (2LJ) that disappears, heating electronic sensor (3LJ), insulating oil detector (GZJ), isolating transformer (B ₂), single 6V transformer (B ₁), digital temperature control instrument (WSK), circulation adds thermoelectrical magnetic valve (1DT) fast, oil-feed automatic control solenoid valve (2DT), oil whip automatic control solenoid valve (3DT), vacuum solenoid (4DT), status switch (K), full-automatic start button (QA), full-automatic stop button (TA), the full-automatic indicator lamp (XD6) that starts, automatically stop indicator lamp (XD5), oil pump stops indicator lamp (XD4), pump start indicator lamp (XD3), vavuum pump stops indicator lamp (XD2), vavuum pump starts indicator lamp (XD1), A.C. contactor C1, C2, C3, C4, C5, compositions such as C6, the programming Control of complete machine is realized that by C20P C20P is by the isolating transformer B that directly links to each other ₂Power supply, the oil level electronic sensor 1LJ that links to each other with it, the foam electronic sensor 2LJ that disappears, heating electronic sensor 3LJ, insulating oil detector GZJ are depended in the control of C20P, after C20P handles these detection signals, control the action of 1DT, 2DT, 3DT, 4DT again, wherein 2DT directly is not connected with C20P with 4DT, 2DT is connected with 5C by 1C, and 4DT is connected by 1C, and indicator lamp XD1, XD2, XD3, XD4, XD5, XD6 power by B1;

2., said labyrinth type foam controller (23) is by upper spacer (43), lower clapboard (44), two big chambeies and middle double wall about being separated into, three metafiltration foam nets (38), (39), (40) are equipped with in the chamber in a left side, the foam electronic sensor (41) that disappears is equipped with on top, bottom steam inlet pipe and vacuum separation tank (18) top links, and extraction steam pipe (45) is equipped with on top, right chamber, and the 4th filter foam net (42) is equipped with at the middle part, the bottom is provided with oil return pipe (46), and the other end and the vacuum separation tank of (46) link;

3., said secondary horizontal filter (6) level is installed on vacuum separation tank (18) below, oil-out and high sealing oil drain pump (35) link, its left end is formed demountable structure by bolt (47), end cap (48) and rubber cushion (49), and the bottom is provided with blowoff valve;

4., said condensation water knockout drum (24), utilize the circulating water in the round intestines type condensate pipe (57) to realize cooling, condensate pipe (57) is helical disk intestines shapes, be separated into ectonexine by taper shading ring (58), the path that gas is passed by increases, to increase condensation effect, steam inlet pipe (59) links with foam controller (23), blast pipe (62) links with two-stage vacuum pump, water inlet pipe (60) links with the vavuum pump water pipe, return pipe (61) connects with water tank, and water storage glass cover (55) is equipped with in the bottom, and condensate pipe adopts Ф 12 copper tubes.

2, automatic control self check high-efficiency vacuum oil filter as claimed in claim 1, it is characterized in that: said insulating oil resistance test lubricating cup is an obturator, form by high-frequency ceramic cup (63), oil-in pipe joint (64), oil-out pipe joint (67), left electrode (66), right electrode (69) etc., the oil inlet and outlet latus rectum is Ф 5, the oil flow path direction is for from bottom to top, and two electrode gaps are 2 ± 0.02.

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