CN102242923B - Electric automatic control device of heat conducting oil steam generator - Google Patents
Electric automatic control device of heat conducting oil steam generator Download PDFInfo
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- CN102242923B CN102242923B CN201110203550XA CN201110203550A CN102242923B CN 102242923 B CN102242923 B CN 102242923B CN 201110203550X A CN201110203550X A CN 201110203550XA CN 201110203550 A CN201110203550 A CN 201110203550A CN 102242923 B CN102242923 B CN 102242923B
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Abstract
The invention discloses an electric automatic control device of a heat conducting oil steam generator, belonging to the field of appliance protection equipment. The electric automatic control device of the heat conducting oil steam generator comprises a water level sampling circuit, a water level control circuit, a water pump, a low water level protection circuit, a pressure sampling circuit, a pressure control circuit, a pneumatic valve and a power supply circuit; the power supply circuit supplies electricity to each circuit; the water pump, the pneumatic valve, the water level sampling circuit and the pressure sampling circuit are connected with the heat conducting oil steam generator; the water level sampling circuit and the pressure sampling circuit are connected with the water level control circuit and the pressure control circuit; the water level control circuit is connected with the water pump and the low water level protection circuit; and the low water level protection circuit and the pressure control circuit are connected with the pneumatic valve. The invention has the following advantages that operation by special persons is not needed; the water level and the pressure can be controlled automatically; the circuits are simply structured and easily repaired; moreover, the manual payment is saved; meanwhile, the safety performance of the heat conducting oil steam generator is improved; and the service life of the heat conducting oil steam generator is prolonged.
Description
Technical field
The present invention relates to a kind of electrical automatic control equipment, be specifically related to a kind of electrical automatic control equipment that is used for the conduction oil steam generator, belong to the electric prospection apparatus field
Background technology
conduction oil is claimed heat-transfer oil again, and regular name is called heat medium oil, is also referred to as thermal conductance oil, the hot coal wet goods.Conduction oil is a kind of transmission medium of heat; Because it has homogeneous heating, temperature adjustment precise control, can under low-steam pressure, produce high temperature, heat-transfer effect is good, energy-conservation, conveying and characteristics such as easy to operate; Be widely used in various occasions in recent years, the conduction oil steam generator is exactly wherein application.
conduction oil steam generator is the high-efficiency heat exchanger equipment of new generation that uses at present, and it needs the electrical automatic control equipment of function admirable supporting with it.And traditional electrical control gear is owing to be Artificial Control; Efficient is relatively poor and security performance is low; Operating personnel need note conduction oil level in steam generator height and pressure size constantly; Overvoltage accidentally will occur and not have the situation of water level operation, particularly not have the water level operation considerable influence is arranged in safe in utilization and service life of conduction oil steam generator.
In view of above-mentioned prior art, be necessary to explore, for this reason, the applicant has done actively and good try, and the technical scheme that will introduce below produces under this background
Summary of the invention
task of the present invention is to provide a kind of special messenger's of need not operation, can control water level, pressure automatically, and the simple conduction oil steam generator automaton for ease of maintenaince of circuit structure.It had both practiced thrift artificial expenditure, the security performance and the service life of having improved the conduction oil steam generator again simultaneously.
task of the present invention is accomplished like this; A kind of conduction oil steam generator electrical automatic control equipment; Comprise water level sampling circuit, water-level control circuit, water pump, low water level holding circuit, pressure samples circuit, pressure control circuit, pneumatic operated valve and power circuit; Said power circuit is each circuit supply; Water pump, pneumatic operated valve, water level sampling circuit and pressure samples circuit are connected with the conduction oil steam generator; The water level sampling circuit is connected with pressure control circuit with water-level control circuit respectively again with the pressure samples circuit, and water-level control circuit is connected with the low water level holding circuit with water pump, and the low water level holding circuit is connected with pneumatic operated valve with pressure control circuit.
One end of the input of
described power circuit of the present invention and the phase line that gets access to grid after fuse is connected, other end connecting to neutral line, the positive terminal output DC source+24V of its output, negative pole end ground connection.
water level sampling circuit of the present invention is made up of the water level meter; The power interface of said water level meter meets dc source+24V; One end of the coil of first relay in its low water level contact and the water-level control circuit is connected, and an end of the coil of second relay in its high water level contact and the water-level control circuit is connected.
water-level control circuit of the present invention comprises first, second relay, overheat protective relay, contactor, low water level indicator lamp and high water level indicator lamp; An end of first normally opened contact of the 3rd relay is connected in one end of the normally opened contact of first relay and the pressure control circuit; The other end of the normally opened contact of first relay is connected with pneumatic operated valve; One end of first normally-closed contact of first relay is connected with an end of low water level indicator lamp; One end of the normally opened contact of second relay is connected with an end of high water level indicator lamp; After being connected, one end of one end of second normally-closed contact of first relay and the normally opened contact of contactor connects an end of the normally-closed contact of second relay; The other end of the normally-closed contact of second relay is connected with an end of the coil of contactor; The other end of the coil of contactor is connected with an end of overheat protective relay, and the other end of overheat protective relay is connected with water pump, another termination dc source+24V of the normally opened contact of second relay; The other end of the other end of the other end of first normally-closed contact of first relay, second normally-closed contact of first relay, the normally opened contact of contactor is connected the back and inserts electrical network phase line, the other end common ground of the other end of the coil of first, second relay, high water level indicator lamp and low water level indicator lamp with fuse.
described low water level holding circuit of the present invention is made up of first normally-closed contact, normally opened contact and the pneumatic operated valve of first relay in the water-level control circuit; The first normally-closed contact two ends of first relay are connected with the low water level indicator lamp with power circuit respectively, the normally opened contact two ends respectively with pressure control circuit in the normally opened contact of the 3rd relay be connected with pneumatic operated valve.
pressure samples circuit of the present invention is made up of the electric contact steam pressure gauge; Its movable contact meets dc source+24V; One end of the normally-closed contact of the 4th relay in low-pressure contact and the pressure control circuit is connected, and an end of the coil of the 4th relay in high-voltage contact and the pressure control circuit is connected.
described pressure control circuit of the present invention comprises the 3rd, the 4th relay, low pressure indicator lamp and HT pilot; One end of the 3rd normally opened contact of the 3rd relay is connected with an end of low pressure indicator lamp; One end of second normally opened contact of the 3rd relay and an end that connects the normally-closed contact of the 4th relay after the low-pressure contact of electric contact steam pressure gauge in the pressure samples circuit is connected; One end of the normally opened contact of the 4th relay is connected with an end of HT pilot; The other end of the normally-closed contact of the 4th relay is connected with an end of the coil of the 3rd relay; An end of the normally opened contact of first relay is connected in one end of first normally opened contact of the 3rd relay and the low water level holding circuit; The other end of first normally opened contact of the 3rd relay is connected the back and inserts the electrical network phase line with fuse; Another termination dc source+24V of the other end of the other end of the 3rd normally opened contact of the 3rd relay, second normally opened contact of the 3rd relay, the normally opened contact of the 4th relay, the other end common ground of the other end of the coil of the other end of the coil of the 3rd relay, the 4th relay, the other end of low pressure indicator lamp and HT pilot.
conduction oil steam generator electrical automatic control equipment of the present invention also comprises manual control circuit; Said manual control circuit comprises first key switch, second key switch and the 3rd key switch; In one end of first key switch and the pressure control circuit in the other end of first normally opened contact of the 3rd relay, the water-level control circuit other end of the normally-closed contact of contactor, an end of second key switch, an end of the 3rd key switch be connected; The other end of first key switch is connected the back and inserts the electrical network phase line with fuse; The other end of second key switch and an end that connects pneumatic operated valve after the other end of the normally opened contact of first relay is connected, the other end of the 3rd key switch are connected the back and are connected with an end of the coil of contactor with an end of the normally-closed contact of second relay.
After
the present invention adopted technique scheme, its advantage was: water-level control circuit, pressure control circuit can make water level, pressure realize control automatically, need not special messenger's operation.In addition, can when low water level, intake automatically, stop into water during high water level automatically; Can when low pressure, heat up automatically, stop automatically during high pressure heating up.The practical components and parts that use of the present invention are few, and cost is low, and circuit structure is simple.And when low water level, can not heat up, to the safety of conduction oil steam generator and good guarantee is provided service life.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is the electrical schematic diagram of electric automatic control circuit of the present invention.
The specific embodiment
Fig. 1 is asked for an interview in
; A kind of conduction oil steam generator electrical automatic control equipment comprises water level sampling circuit 1, water-level control circuit 2, water pump 3, low water level holding circuit 4, pressure samples circuit 5, pressure control circuit 6, pneumatic operated valve 7 and power circuit; Said power circuit converts dc source to after being inserted by electrical network; Be each circuit supply; The water level meter W of water pump 3, pneumatic operated valve 7, water level sampling circuit 1 and the electric contact steam pressure gauge G of pressure samples circuit 5 are connected with conduction oil steam generator 8 through pipeline; Water level sampling circuit 1 is connected with pressure control circuit 6 with water-level control circuit 2 respectively again with pressure samples circuit 5, and water-level control circuit 2 is connected with low water level holding circuit 4 with water pump 3, and low water level holding circuit 4 is connected with pneumatic operated valve 7 with pressure control circuit 6.Water level sampling circuit 1 is gathered the water level high-low signal through water level meter W, exports water-level control circuit 2 to, just controls water pump 3 runnings by water-level control circuit 2 according to the water level of reality.In addition, water-level control circuit 2 can also be controlled in certain working range level in steam generator and pressure through 7 runnings of low water level holding circuit 4 control pneumatic operated valves.Pressure samples circuit 5 is gathered the high-low pressure signal through electric contact steam pressure gauge G, exports pressure control circuit 6 to, just controls pneumatic operated valve 7 runnings by pressure control circuit 6 according to the pressure of reality.
Fig. 2 is asked for an interview in
; When in low water level, water level meter W low water level contact and high water level contact are all broken off, the coil blackout of relay J 1; First normally-closed contact of relay J 1 is closed; The low water level indicator lamp is bright reports to the police, and the normally opened contact of relay J 1 breaks off simultaneously, and pneumatic operated valve 7 breaks off and stops to heat up.At this moment, the normally-closed contact of relay J 2 is closed, and the coil of contactor KM1 is owing to the closure of second normally-closed contact of relay J 1 is switched on, the automatic adhesive of contactor KM1 normally opened contact, and water pump 3 turns round.When water level rises to high water level, the equal conducting in water level meter W low water level contact and high water level contact, the coil electricity of relay J 1, J2, the normally opened contact of relay J 2 is closed, and the high water level indicator lamp is bright.The normally-closed contact of relay J 2 breaks off, the coil blackout of contactor KM1, and its normally opened contact breaks off, and water pump shuts down, and water inlet stops.Simultaneously, the normally opened contact of relay J 1 is closed, and the pneumatic operated valve running begins to heat up.
Fig. 2 is still seen in
; When in low pressure, the electric contact steam pressure gauge G in the pressure samples circuit 5 connects low-pressure contact, the coil blackout of relay J 4; Its normally-closed contact is closed; The coil electricity of relay J 3, first normally opened contact of relay J 3 is closed, and pneumatic operated valve is connected and is begun to heat up.When pressure rose to high pressure, electric contact steam pressure gauge G connected high-voltage contact, relay J 4 coil electricities, and its normally-closed contact breaks off, relay J 3 coil blackouts, its first normally opened contact breaks off, and pneumatic operated valve breaks off, and stops to heat up.The normally opened contact of relay J 4 breaks off simultaneously, and HT pilot is bright.
in addition; Conduction oil steam generator electrical automatic control equipment of the present invention also comprises manual control circuit; When automaton breaks down or specific (special) requirements is arranged, can regulate level in steam generator and pressure through this manual control circuit.Key switch SB1 is normally closed, and when pushing button switch S B2, pneumatic operated valve is connected, and begins to heat up; When pushing button switch S B3, water pump is connected, and begins water inlet.
In sum, technical scheme provided by the invention has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (7)
1. conduction oil steam generator electrical automatic control equipment; It is characterized in that comprising water level sampling circuit (1), water-level control circuit (2), water pump (3), low water level holding circuit (4), pressure samples circuit (5), pressure control circuit (6), pneumatic operated valve (7) and power circuit; Said power circuit is each circuit supply; Water pump (3), pneumatic operated valve (7), water level sampling circuit (1) and pressure samples circuit (5) are connected with conduction oil steam generator (8); Water level sampling circuit (1) is connected with pressure control circuit (6) with water-level control circuit (2) respectively again with pressure samples circuit (5); Water-level control circuit (2) is connected with low water level holding circuit (4) with water pump (3), and low water level holding circuit (4) is connected with pneumatic operated valve (7) with pressure control circuit (6)
,Described water-level control circuit (2) comprises first, second relay (J1, J2), overheat protective relay (FR), contactor (KM1), low water level indicator lamp (T1) and high water level indicator lamp (T2); An end of first normally opened contact of the 3rd relay (J3) is connected in one end of the normally opened contact of first relay (J1) and the pressure control circuit (6); The other end of the normally opened contact of first relay (J1) is connected with pneumatic operated valve (7); One end of first normally-closed contact of first relay (J1) is connected with an end of low water level indicator lamp (T1); One end of the normally opened contact of second relay (J2) is connected with an end of high water level indicator lamp (T2); After being connected, one end of one end of second normally-closed contact of first relay (J1) and the normally opened contact of contactor (KM1) connects an end of the normally-closed contact of second relay (J2); The other end of the normally-closed contact of second relay (J2) is connected with an end of the coil of contactor (KM1); The other end of the coil of contactor (KM1) is connected with an end of overheat protective relay (FR); The other end of overheat protective relay (FR) is connected with water pump (3); Another termination dc source+24V of the normally opened contact of second relay (J2); The other end of the normally opened contact of the other end of second normally-closed contact of the other end of first normally-closed contact of first relay (J1), first relay (J1), contactor (KM1) is connected the back and inserts electrical network phase line (R), the other end common ground of the other end of the coil of first, second relay (J1, J2), high water level indicator lamp (T2) and low water level indicator lamp (T1) with fuse (FU1).
2. conduction oil steam generator electrical automatic control equipment according to claim 1; The end and the phase line (R) that gets access to grid after fuse (FU1) is connected that it is characterized in that the input of described power circuit; Other end connecting to neutral line (N); The positive terminal output DC source+24V of its output, negative pole end ground connection.
3. conduction oil steam generator electrical automatic control equipment according to claim 1; It is characterized in that described water level sampling circuit (1) is made up of water level meter (W); The power interface of said water level meter (W) meets dc source+24V; One end of the coil of first relay (J1) in its low water level contact and the water-level control circuit (2) is connected, and an end of the coil of second relay (J2) in its high water level contact and the water-level control circuit (2) is connected.
4. conduction oil steam generator electrical automatic control equipment according to claim 1; It is characterized in that described low water level holding circuit (4) is made up of first normally-closed contact, normally opened contact and the pneumatic operated valve (7) of first relay (J1) in the water-level control circuit (2); The first normally-closed contact two ends of first relay (J1) are connected with low water level indicator lamp (T1) with power circuit respectively, the normally opened contact two ends respectively with pressure control circuit (6) in the normally opened contact of the 3rd relay (J3) be connected with pneumatic operated valve (7).
5. conduction oil steam generator electrical automatic control equipment according to claim 1; It is characterized in that described pressure samples circuit (5) is made up of electric contact steam pressure gauge (G); Its movable contact meets dc source+24V; One end of the normally-closed contact of the 4th relay (J4) in low-pressure contact and the pressure control circuit (6) is connected, and an end of the coil of the 4th relay (J4) in high-voltage contact and the pressure control circuit (6) is connected.
6. conduction oil steam generator electrical automatic control equipment according to claim 1; It is characterized in that described pressure control circuit (6) comprises the 3rd, the 4th relay (J3, J4), low pressure indicator lamp (T3) and HT pilot (T4); One end of the 3rd normally opened contact of the 3rd relay (J3) is connected with an end of low pressure indicator lamp (T3); Connect an end of the normally-closed contact of the 4th relay (J4) after the low-pressure contact of electric contact steam pressure gauge (G) is connected in one end of second normally opened contact of the 3rd relay (J3) and the pressure samples circuit (5); One end of the normally opened contact of the 4th relay (J4) is connected with an end of HT pilot (T4); The other end of the normally-closed contact of the 4th relay (J4) is connected with an end of the coil of the 3rd relay (J3); An end of the normally opened contact of first relay (J1) is connected in one end of first normally opened contact of the 3rd relay (J3) and the low water level holding circuit (4); The other end of first normally opened contact of the 3rd relay (J3) is connected the back and inserts electrical network phase line (R) with fuse (FU1); Another termination dc source+24V of the normally opened contact of the other end of second normally opened contact of the other end of the 3rd normally opened contact of the 3rd relay (J3), the 3rd relay (J3), the 4th relay (J4), the other end common ground of the other end of the coil of the other end of the coil of the 3rd relay (J3), the 4th relay (J4), the other end of low pressure indicator lamp (T3) and HT pilot (T4).
7. conduction oil steam generator electrical automatic control equipment according to claim 1; It is characterized in that described conduction oil steam generator electrical automatic control equipment also comprises manual control circuit; Said manual control circuit comprises first key switch (SB1), second key switch (SB2) and the 3rd key switch (SB3); In one end of first key switch (SB1) and the pressure control circuit (6) in the other end of first normally opened contact of the 3rd relay (J3), the water-level control circuit (2) other end of the normally-closed contact of contactor (KM1), an end of second key switch (SB2), an end of the 3rd key switch (SB3) be connected; The other end of first key switch (SB1) is connected the back and inserts electrical network phase line (R) with fuse (FU1); The other end of second key switch (SB2) and an end that connects pneumatic operated valve (7) after the other end of the normally opened contact of first relay (J1) is connected, the other end of the 3rd key switch (SB3) are connected the back and are connected with an end of the coil of contactor (KM1) with an end of the normally-closed contact of second relay (J2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203550XA CN102242923B (en) | 2011-07-20 | 2011-07-20 | Electric automatic control device of heat conducting oil steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203550XA CN102242923B (en) | 2011-07-20 | 2011-07-20 | Electric automatic control device of heat conducting oil steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102242923A CN102242923A (en) | 2011-11-16 |
| CN102242923B true CN102242923B (en) | 2012-11-07 |
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ID=44961104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110203550XA Expired - Fee Related CN102242923B (en) | 2011-07-20 | 2011-07-20 | Electric automatic control device of heat conducting oil steam generator |
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| Country | Link |
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| CN (1) | CN102242923B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH112496A (en) * | 1997-06-13 | 1999-01-06 | Ishikawajima Harima Heavy Ind Co Ltd | Heat exchanger |
| CN100376838C (en) * | 2003-03-10 | 2008-03-26 | 青岛科技大学 | Thermal conductive oil boiler reformed from steam boiler |
| CN200993353Y (en) * | 2006-12-19 | 2007-12-19 | 大连大通源电器有限公司 | Electric controlled direct-heating high temperature steam engine |
| CN101354126A (en) * | 2007-07-27 | 2009-01-28 | 常州能源设备总厂有限公司 | Coil tube type steam generation apparatus |
| CN201322291Y (en) * | 2008-07-24 | 2009-10-07 | 沈雪琴 | Steam generator |
| CN100557305C (en) * | 2008-08-22 | 2009-11-04 | 常州联合锅炉容器有限公司 | Steam generator |
| CN201259203Y (en) * | 2008-08-30 | 2009-06-17 | 林小琳 | Steam generator |
| CN202149477U (en) * | 2011-07-20 | 2012-02-22 | 常熟协顺纺织制衣有限公司 | Electric automatic control device for heat transfer oil steam generator |
-
2011
- 2011-07-20 CN CN201110203550XA patent/CN102242923B/en not_active Expired - Fee Related
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| CN102242923A (en) | 2011-11-16 |
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