CN2209804Y - Precision temperature program control cabinet - Google Patents
Precision temperature program control cabinet Download PDFInfo
- Publication number
- CN2209804Y CN2209804Y CN 94207650 CN94207650U CN2209804Y CN 2209804 Y CN2209804 Y CN 2209804Y CN 94207650 CN94207650 CN 94207650 CN 94207650 U CN94207650 U CN 94207650U CN 2209804 Y CN2209804 Y CN 2209804Y
- Authority
- CN
- China
- Prior art keywords
- terminal
- auxiliary reclay
- temperature controller
- controller
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Control Of Temperature (AREA)
Abstract
The utility model provides a precision temperature program control cabinet, has solved prior art and has easily produced out of control, causes "overburning" or "overheated" switch board installation space big, does not realize wiring before the board, and the maintenance is difficult, does not have keyboard locking circuit, can not prevent and control irrelevant personnel and modify the parameter of switch board controller or the not enough of maloperation. It features that the dual-link circuit of "overtemperature" and "couple breaking" and "alarm and power off" is added to realize the wiring before board and the keyboard is locked. The method has the advantages of effectively preventing non-operators from modifying parameters or misoperation, wiring in front of the board, and completely eradicating overburning or overheating. The method is suitable for precise temperature control of resistive loads (such as a resistance heating furnace).
Description
The utility model relates to a kind of temperature survey, control device, particularly a kind of precision temperature switch board that is applicable to resistive load (as resistance-heated furnace) with program function.
Temperature switch board of the prior art all has the thermoelectrical potential that controlled device is produced owing to temperature variation to be changed and reacts and make this variation be controlled at the ability of a certain scope.But only be provided with simple " overtemperature " deenergizing circuit, do not possess program function, the precision of control temperature is not high, causes controlled device variation of temperature scope in heating process big, can not satisfy the requirement to the heating process aspect of new material, new technology; Temperature-controlled precision is higher in the prior art, possesses automatic simulation writing function, can satisfy the temperature switch board that controlled device requires aspect heating process also has, but its interference (as vibrations) that is subject to external environment makes temperature-controlled precision reduce, and it is very difficult to readjust required temperature-controlled precision, the repeated extreme difference of temperature-controlled precision does not possess program function; Also has the temperature-controlled precision height in the prior art; the temperature-controlled precision good reproducibility, possess program function and simulate the temperature switch board of writing function automatically; but it also only is provided with when single-circuit " overtemperature " (promptly surpassing the heating-up temperature that sets) occurring " overtemperature " with " disconnected idol " phenomenon with " disconnected idol " (promptly importing the thermoelectrical potential signal begins) warning and deenergizing circuit in controlled device heating process; give the alarm and to cut off the defencive function of primary power simultaneously poor; reliability is not high; easily cause out of controlly, make controlled device that the phenomenon of " overheated " or " burning " take place.And temperature switch board installing space is big, does not realize the preceding wiring of plate, safeguards, overhauls difficulty.The keyboard lockout circuit of temperature controller is not set, can not prevents and control parameter or maloperation that unrelated person is revised temperature switch board controller.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provides a kind of precision temperature program control cabinet for the heating controlled device of resistive load.
Technical solution of the present utility model is: on the basis of the conventional operation circuit of existing temperature switch board, set up temperature controller " warning and outage " circuit, and this circuit and another independently " the also outage of reporting to the police " circuit of recorder controller suitably be linked together, form two independence and identical " overtemperature " and " disconnected idol " and the duplex circuits of " report to the police and also cut off the power supply " of function separately, make up electronic device and electric components and locus thereof rightly, with lead they are firmly connected mutually, realize the preceding wiring of desired function and plate, and between temperature controller and electric components, set up the keyboard lockout circuit.Be specially: recorder controller ((N PR)
C) terminal is connected in series into auxiliary reclay (K
2) coil and control button (S
1) in the loop formed, ((alarm terminals PT) (28) is serially connected recorder controller, recorder controller ((N PR) for (COm) terminal PR) and temperature controller
O) terminal and light emitting diode (VL
2) negative electrode, auxiliary reclay (K
3) wire loop, temperature controller (alarm terminals PT) (30) and auxiliary reclay (K
3) the self-locking normally opened contact connect together, (public terminal PT) (29) is through protection cartridge fuse (F for temperature controller
5) be connected with center line (N).(PT) (26) and (27) terminal are by lead and key formula rotary switch (SB with temperature controller for the keyboard lockout circuit
2) one group of contact couple together and realize.
The utility model has following advantage compared to existing technology:
1, temperature-controlled precision height and good reproducibility; have program function and simulate writing function automatically; when satisfying controlled device and aspect heating process, requiring; can also stop controlled device effectively " overheated " or " burning " phenomenon takes place, greatly improve " overtemperature " protective capability and reliability thereof with " disconnected idol ".
2, realize the preceding wiring of plate, make temperature switch board compact conformation, installing space is little, maintenance and easy to maintenance.
3, be provided with the keyboard lockout circuit of temperature controller, can prevent effectively that the not operation personnel from revising the parameter or the maloperation of temperature switch board temperature controller.
The drawing of accompanying drawing is described as follows:
Fig. 1 sheds down behind the door outward appearance front-view schematic diagram for the utility model.Represented a switch board housing (19) that is provided with upper and lower door in the figure.Be installed with reometer (1), recorder controller (2), temperature controller (3), all wave controllers (4), door lock (6), alarm lamp (7), power light (8), key formula rotary switch (9) and (10), band button (11) and (12) respectively on (5) to the doorstep at this housing (19).Also be fixed with to the doorstep one of the acoustic alarm device that do not mark in Fig. 1 on (5), one of cycle controller power source cartridge fuse and base, one of warning path protection cartridge fuse and base, the thyristor of all wave controllers trigger two of power fuse pipe and bases; In this housing (19) the latter half, be installed with watt-hour meter (13), A.C. contactor (14), fastp-acting fuse (15), current transformer (16), thyristor protection plate (17), thyristor cooling blower (18), thyristor (20), current relay (21), auxiliary reclay (22), control power fuse pipe and base (23), signal lamp power transformer (24), automatic air-break switch (25) respectively.
Fig. 2 is the connection line synoptic diagram between each electronic device of the utility model and the electric components.Wherein-F
1Be fastp-acting fuse ,-PJ is a watt-hour meter, and-TA is a current transformer, and-PA is a reometer ,-V
1With-V
2Be bidirectional thyristor ,-Q is an automatic air-break switch ,-F
2Be control power fuse pipe ,-F
3Be the thyristor triggering power fuse pipe of all wave controllers ,-R
1With-C
1,-R
2With-C
2For the thyristor overvoltage absorbs protection resistor and capacitor ,-R
3For triggering current-limiting resistance ,-P is all wave controllers ,-B
1With-B
2Be temperature sensor ,-VL
1With-VL
2Be light emitting diode, R is a light emitting diode current limliting dropping resistor ,-SB
1With-SB
2Be key formula rotary switch ,-T is the signal lamp power transformer ,-HL
1With-HL
2Be signal lamp ,-K
1Be current relay ,-M is the thyristor cooling blower ,-C
3Be the phase-shift capacitor of cooling blower ,-S
1With-S
2Be band button ,-K
2With-K
3Be auxiliary reclay ,-PR is a recorder controller, and-PT is a temperature controller, and-HA is the acoustic alarm device ,-F
4Be all wave controllers and temperature controller power fuse pipe ,-F
5Be warning path protection cartridge fuse, 26,27 is the key lock terminal of temperature controller-PT, and 28,29,30 is the alarm terminals of temperature controller-PT.By being connected between each electronic device among this figure and the electric components; form load primary power circuit, control and record circuit, protection circuit and indication, measuring circuit four major parts, this four most of circuit organically is combined into the complete electric circuit diagram of the present utility model of a cover.
Fig. 3 is an another kind of side connecting conductor case of the present utility model.It is characterized in that: in the connection line in Fig. 2 between each electronic device and the appliance component, ((COm) terminal PR) is not concatenated into temperature controller (on alarm terminals PT) (28) recorder controller, but directly be connected with center line (N) end, at auxiliary reclay (K
2) serial connection is gone into one group of auxiliary reclay, (K in the wire loop
3) normally closed contact.All the other sequence number connotations all with Fig. 2 in identical.
Fig. 4 is the third side connecting conductor case of the present utility model.It is characterized in that control knob (S among Fig. 2
1) and (S
2) shift and serial connection go into A.C. contactor (KM) in the wire loop, auxiliary reclay (K
2) coil directly with control power supply and be connected.All the other sequence number connotations all with Fig. 2 in identical.
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment: recorder controller ((N PR)
C) terminal is connected in series into auxiliary reclay (K
2) coil and control knob (S
1) in the loop formed, ((alarm terminals PT) (28) is serially connected recorder controller, recorder controller ((N PR) for (COm) terminal PR) and temperature controller
O) terminal and light emitting diode (VL
2) negative electrode, auxiliary reclay (K
3) wire loop, temperature controller (alarm terminals PT) (30) and auxiliary reclay (K
3) the self-locking normally opened contact connect together, (public terminal PT) (29) is through protection cartridge fuse (F for temperature controller
5) be connected with center line (N), constitute the duplex circuit of said two independent separately and function is identical again " overtemperature " and " disconnected idol " " the also outages of reporting to the police ".
Its principle of work is as follows:
When resistive load in heating process, temperature sensor-B
1With-B
2Respectively will be with it corresponding thermoelectrical potential signal import simultaneously recorder controller (PR) and temperature controller (PT).After " overtemperature " phenomenon takes place, recorder controller ((N PR)
O) connect (N automatically with (COm) normally opened contact
C) disconnect simultaneously with (COm) normally closed contact; (N
O) connect with (COm) normally opened contact after, auxiliary reclay (K
3) coil electric in, warning light (VL
2) light, realize the light warning, auxiliary reclay (K
3) coil gets electric back normally opened contact and connect automatically, makes acoustic alarm device (HA
1) get electric concurrent responding sound, realize acoustic alarm; (N
C) disconnect with (COm) normally closed contact after, auxiliary reclay (K
2) coil losing electricity, its with A.C. contactor (KM) the normally opened contact automatic cutout that is connected of coil, A.C. contactor (KM) coil losing electricity, thus cut off the three-phase supply of major loop.
After " overtemperature " phenomenon took place, temperature controller (connected automatically, the automatic cutout simultaneously of normally closed terminal (28) and public terminal (30) by (29) PT) and (30) alarm actuating contact; Auxiliary reclay (K
3) coil get electric, auxiliary reclay (K
2) coil while dead electricity, realize above-mentioned recorder controller (acousto-optic PR) " the also outage of reporting to the police " function.
After i.e. " disconnected idol " phenomenon generation of another kind of situation, temperature sensor (B
1) or (B
2) arbitrary signal do not import recorder controller (PR) or temperature controller (PT) time, recorder controller (PR) and temperature controller (PT) all regard temperature as and infinitely raise, handle by above-mentioned " overtemperature " phenomenon.
Owing to adopted being connected between above-mentioned electronic device and the electric components, after making that " overtemperature " or " disconnected idol " phenomenon takes place controlled device, as long as recorder controller (PR) or temperature controller (PT) the two one of be in normal operating condition, just can realize that " overtemperature " and " disconnected idol " reach the function of " reporting to the police and outage ", under the situation that does not increase components and parts, got rid of past controlled device " overheated " or " burning " phenomenon of causing out of control once in a while owing to electronic device, stop the generation of this type of phenomenon effectively, greatly improved the reliability that " overtemperature " and " disconnected idol " reaches " the also outage of reporting to the police " function.
Also has another connectivity scenario, realize the duplex circuit of said two independent separately and function is identical again " overtemperature " and " disconnected idol " " the also outages of reporting to the police ", promptly ((COm) terminal PR) is not concatenated into temperature controller (on alarm terminals PT) (28) recorder controller, but directly be connected with center line (N) end, at auxiliary reclay (K
2) serial connection is gone into one group of auxiliary reclay (K in the wire loop
3) normally closed contact.So, also can realize two " overtemperatures " and " disconnected idol " the duplex loop of warning and outage independent separately and function is identical again.The keyboard lockout circuit is with scheme one.
The third side connecting conductor case is: with control knob (S
1) and (S
2) shift and serial connection go into A.C. contactor (KM) in the wire loop, auxiliary reclay (K
2) coil directly with control power supply and be connected, the keyboard lockout circuit is with scheme one.
The keyboard lockout circuit is with temperature controller (PT) (2) and (3) Chang Kaiduan lead and key formula rotary switch (SB
2) one group of contact couple together and realize.(when SB) being in closure state, (PT) button of all on the panel is locked, and is all inoperative, makes acoustic alarm auxiliary reclay (K simultaneously for temperature controller when key formula rotary switch
3) be in alert status; As key formula rotary switch (SB
2) when being rotated to open-circuit condition, and temperature controller (PT) button on the panel all recovers its due effect, the keyboard lockout defunctionalization, and at this moment, the acoustic alarm loop is in open-circuit condition, and entering reports to the police eliminates the noise, and confirms and handle the duty of warning.
The utility model is applicable to the precision temperature control of resistive load (such as resistance-heated furnace).
Claims (3)
1; the program control cabinet of a kind of precision temperature; to the doorstep be provided with door lock 6 on 5 at housing 19; reometer 1; recorder controller 2; temperature controller 3; all wave controllers 4; alarm lamp 8; key formula rotary switch 9 and 10; band button 11 and 12; in housing 19 Xiamen, be provided with watt-hour meter 13; A.C. contactor 14; fastp-acting fuse 15; current transformer 16; thyristor protection plate 17; thyristor cooling blower 18; thyristor 20; current relay 21; auxiliary reclay 22; control power fuse pipe and base 23; signal lamp power transformer 24; automatic air-break switch 25; it is characterized in that the Nc terminal of recorder controller-PR is connected in series into auxiliary reclay-K
2Coil and control knob-S
1In the loop of forming, the COm terminal of this adjusting apparatus and the alarm terminals 28 of temperature controller-PT are serially connected the N of this adjusting apparatus
0Terminal and light emitting diode-VL
2Negative electrode, auxiliary reclay-K
3Wire loop, alarm terminals 30 and the auxiliary reclay-K of temperature controller-PT
3The self-locking normally opened contact connect together, the public terminal 29 of temperature controller-PT through the protection cartridge fuse-F
5N is connected with center line, and the keyboard lockout circuit is with the terminal 26 of temperature controller-PT and 27 usefulness leads and key formula rotary switch-SB
2One group of contact be connected.
2, according to the program control cabinet of the precision temperature described in the claim 1, it is characterized in that, the COm terminal of recorder controller-PR is directly held with center line N be connected, at auxiliary reclay-K
2Serial connection is gone into one group of auxiliary reclay-K in the wire loop
3Normally closed contact, the keyboard lockout circuit is with the terminal 26 of temperature controller-PT and 27 usefulness leads and key formula rotary switch-SB
2One group of contact be connected.
3, according to the program control cabinet of the precision temperature described in the claim 1, it is characterized in that, with control knob-S1 and-S2 is connected in series in A.C. contactor-KM wire loop auxiliary reclay-K
2Coil directly is connected with the control power supply, and the keyboard lockout circuit is with the terminal 26 of temperature controller-PT and 27 usefulness leads and key formula rotary switch-SB
2One group of contact be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207650 CN2209804Y (en) | 1994-04-07 | 1994-04-07 | Precision temperature program control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207650 CN2209804Y (en) | 1994-04-07 | 1994-04-07 | Precision temperature program control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209804Y true CN2209804Y (en) | 1995-10-11 |
Family
ID=33825921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94207650 Expired - Fee Related CN2209804Y (en) | 1994-04-07 | 1994-04-07 | Precision temperature program control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209804Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368124A (en) * | 2017-09-04 | 2017-11-21 | 广州弘雅服装科技有限公司 | A kind of sizing temperature control method |
| CN109647872A (en) * | 2019-01-29 | 2019-04-19 | 中国科学院南京土壤研究所 | Sandboxing techniques system and method is answered in a kind of soil in-situ hot repair |
| US11530059B2 (en) | 2008-04-23 | 2022-12-20 | Signode Industrial Group Llc | Strapping device |
| US11999516B2 (en) | 2008-04-23 | 2024-06-04 | Signode Industrial Group Llc | Strapping device |
-
1994
- 1994-04-07 CN CN 94207650 patent/CN2209804Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11530059B2 (en) | 2008-04-23 | 2022-12-20 | Signode Industrial Group Llc | Strapping device |
| US11731794B2 (en) | 2008-04-23 | 2023-08-22 | Signode Industrial Group Llc | Strapping device |
| US11999516B2 (en) | 2008-04-23 | 2024-06-04 | Signode Industrial Group Llc | Strapping device |
| CN107368124A (en) * | 2017-09-04 | 2017-11-21 | 广州弘雅服装科技有限公司 | A kind of sizing temperature control method |
| CN109647872A (en) * | 2019-01-29 | 2019-04-19 | 中国科学院南京土壤研究所 | Sandboxing techniques system and method is answered in a kind of soil in-situ hot repair |
| CN109647872B (en) * | 2019-01-29 | 2020-04-17 | 中国科学院南京土壤研究所 | Soil in-situ thermal remediation sandbox simulation system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |