CN201159844Y - Low temperature pump control box - Google Patents
Low temperature pump control box Download PDFInfo
- Publication number
- CN201159844Y CN201159844Y CNU2007200975416U CN200720097541U CN201159844Y CN 201159844 Y CN201159844 Y CN 201159844Y CN U2007200975416 U CNU2007200975416 U CN U2007200975416U CN 200720097541 U CN200720097541 U CN 200720097541U CN 201159844 Y CN201159844 Y CN 201159844Y
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- relay
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- opened contact
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Abstract
The utility model discloses a control box for a low temperature pump, which includes a main circuit that is directly connected with and drives the low temperature pump, a min control circuit that is provided with a main controller, and a second control circuit that is respectively connected with the main circuit and the main control circuit and receives the signal from the main control circuit to control the main circuit. Wherein, the main circuit is powered by AC power supply; the main control circuit and the second control circuit are powered by DC power supply. The utility model has the functions of running current display, over heat protection, motor star-triangle startup, phase sequence detection, running hours display and automatic pump stopping when no operation is carried out in 4 minutes. The utility model reduces the volume of the motor control system, the wiring is simple and clear, all components are sealed, and the loosing is effectively avoided; the box body of the control disc is waterproof and splashing protective, and has the function of protection with the protection level of IP65. The utility model has local and remote operation function, making the operation much simple and safer to the operator; the utility model also reduces the equipment cost, prolongs the service life of the equipment and saves electric power.
Description
Technical field
The utility model relates to a kind of tank car cryopump control device, and it is low particularly to relate to a kind of cost, and long service life is saved electric power, has this locality, operated from a distance, and cryopump control box easy to operate and safe.
Background technology
The tank car transportation is all very general at home and abroad, oxygen, cryogenic liquids such as nitrogen all lean on the tank car transportation, the China that enters along with large scale industry gas foreign capital affiliate, continuous increase with domestic big-and-middle-sized industrial gasses enterprise, occurred increasing trans-city, transprovincial operation, often a plurality of centers of supplying gas are had in an enterprise in the whole nation, the center of supplying gas is delivered to each final user by tank car with the cryogenic gas product, unload by mobile generator and power supply disks to on-the-spot, control system the earliest all is to use external imported product, because its system design is built up early, lack necessary update, and all devices can only import, and device damages easily, and maintenance cycle is oversize, cost is very high, can't satisfy the control requirement of China's new equipment.
Existing control system lacks protection design targetedly; for example; if because of operating personnel's time departure is long pump is dallied when unloading; will cause the damage of cryopump; and have the spare part of Cryo Equipment very expensive now, take the more control technology to come protection equipment and personal safety to become very urgent demand.
And its existing electric machine control system, element are import all, and maintenance cycle is oversize, and cost is very high.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of cost low, and long service life is saved electric power, has this locality, operated from a distance, and cryopump control box easy to operate and safe.
The technical scheme that the utility model adopted is: a kind of cryopump control box, include direct connection and drive the cryopump motor M major loop, be provided with the main control loop of master controller, and link to each other with major loop, main control loop respectively, receive the signal of main control loop and control second control loop of major loop, wherein, major loop is by ac power supply, and the main control loop and second control loop are by DC power supply.
Described major loop includes the circuit breaker Q S1 that links to each other with three-phase supply; The reometer PA that links to each other with power supply by current transformer TA, and the coil of indicating relay KA3 and the coil that phase sequence detects relay K 1 of powering on that link to each other with power supply respectively; Also be provided with the first contactor KM1 and the second contactor KM2, the first contactor KM1 is in parallel with the second contactor KM2 and is connected, input end after its parallel connection links to each other with three-phase supply, output terminal after the parallel connection by overheated year relay FR respectively with three-phase input end U1, VI, the WI of motor M, and the input end of angle type operation contactor KM3 connects, also be provided with star-like operation contactor KM4, the output terminal of the output terminal of described star-like operation contactor KM4 and angle type operation contactor KM3 is connected three-phase input end V2, W2, the U2 of motor M jointly.
Described main control loop includes master controller LOGO that is connected with direct-current input power supplying and the temperature display watch KT that is connected with direct-current input power supplying, wherein, described master controller LOGO connects electric motor starting button SB1 and stop button SB3 respectively, and remote activation button SB2, long-range stop button SB4, remote reset button SB5, and electric motor starting button SB1 is to be connected with direct-current input power supplying by switching local, remote plug SW with stop button SB3 and remote activation button SB2, long-range stop button SB4, remote reset button SB5; Described remote activation button SB2, long-range stop button SB4, remote reset button SB5 are installed in the remote key-press box; Master controller LOGO is the direct-current input power supplying that is connected in series of the normally closed auxiliary contact of the normally closed auxiliary contact by temperature display watch KT and thermal overload relay FR also; Master controller LOGO output connects the coil of star-like operation relay K A1, the coil of angle type operation relay K A2 and the display lamp H in the remote button box respectively.
Described second control loop includes following many loops parallel with one another: the phase sequence of series connection detects the normally opened contact of relay K 1, the normally opened contact of star-like operation relay K A1, the normally closed contact of the contactor KM2 of phase sequence inverse time, the contactor KM1 coil of phase sequence timing successively, wherein, phase sequence detects another termination direct supply of normally opened contact of relay K 1, another termination 0V power supply of contactor KM1 coil, the normally opened contact of star-like operation relay K A1 wherein also are connected in parallel with the normally opened contact of angle type operation relay K A2; The normally closed contact of the contactor KM1 of the normally closed contact of the phase sequence detection relay K 1 of connecting successively, the normally opened contact of star-like operation relay K A1, phase sequence timing, the coil of the contactor KM2 of phase sequence inverse time, wherein, phase sequence detects another termination direct supply of normally closed contact of relay K 1, another termination 0V power supply of the contactor KM2 coil of phase sequence inverse time, the normally opened contact of star-like operation relay K A1 also are connected in parallel with the normally opened contact of angle type operation relay K A2; Normally opened contact, star-like operation contactor KM4 normally closed contact, the angle type of the angle type operation relay K A2 of series connection move the coil of contactor KM3 successively, wherein, another termination direct supply of the normally opened contact of angle type operation relay K A2, another termination 0V power supply of the coil of angle type operation contactor KM3; The normally opened contact of Chuan Lian star-like operation relay K A1, angle type move the normally closed contact of contactor KM3, the coil of star-like operation contactor KM4 successively, wherein, another termination direct supply of star-like operation relay K A1 normally opened contact, another termination 0V power supply of star-like operation contactor KM4 coil; Also be provided with: an end connects the normally opened contact of the indicating relay KA3 that powers on of direct supply, other end serial connection power light H2; One end connects the normally opened contact of the thermal overload relay FR of direct supply, other end serial connection temperature alarming pilot lamp H5; And one end connect the normally opened contact of the angle type operation contactor KM3 of direct supply, other end serial connection motor run indicator H3, and motor run indicator H3 also is in parallel with hours run table H6; This loop also is provided with: the end after the normally opened contact parallel connection of the normally opened contact of star-like operation relay K A1 and angle type operation relay K A2 is connected direct supply, the other end towards the mobile generator control box, and is provided with the power light H1 that is connected on the both ends of power.
Be in series with the fuse of 4A at the input end of direct supply.
Cryopump control box of the present utility model has running current and shows that overheating protection is arranged, and motor star-angle starts, and phase sequence measuring ability, hours of operation show, does not have functions such as operating then pump trip in 4 minutes.The utility model has dwindled the motor control system volume, and wiring is simple and clear, and all components and parts are all sealed, has effectively prevented to become flexible the protection of console panel casing waterproof splashproof, degree of protection IP65.Have this locality, operated from a distance, make operation easier, safer for the operator.And reduced the cost of equipment, and prolonged the serviceable life of equipment, saved electric power.
Description of drawings
Fig. 1 is a major loop of the present utility model;
Fig. 2 is main control loop of the present utility model;
Fig. 3 is second control loop of the present utility model.
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify cryopump control box of the present utility model and how to realize.
Cryopump control box of the present utility model, include direct connection and drive the cryopump motor M major loop, be provided with the main control loop of master controller, and link to each other with major loop, main control loop respectively, receive the signal of main control loop and control second control loop of major loop, wherein, major loop is by ac power supply, and the main control loop and second control loop are by DC power supply.
As shown in Figure 1, described major loop includes the circuit breaker Q S1 that links to each other with three-phase supply L1, L2, L3; The reometer PA that links to each other with power supply and show working current by current transformer TA, and the coil of indicating relay KA3 and the coil that phase sequence detects relay K 1 of powering on that link to each other with power supply respectively; Also be provided with the first contactor KM1 and the second contactor KM2, the first contactor KM1 is in parallel with the second contactor KM2 and is connected, input end after its parallel connection links to each other with three-phase supply, output terminal after the parallel connection by overheated year relay FR respectively with three-phase input end U1, VI, the WI of motor M, and the input end of angle type operation contactor KM3 connects, also be provided with star-like operation contactor KM4, the output terminal of the output terminal of described star-like operation contactor KM4 and angle type operation contactor KM3 is connected three-phase input end V2, W2, the U2 of motor M jointly.Phase sequence detects timing KM1 meeting adhesive, send to motor; Phase sequence detects inverse time KM2 meeting adhesive, send to motor.Angle type operation contactor KM3, the operation of adhesive rear motor angle type, star-like operation contactor KM4, the star-like startup of adhesive rear motor.
As shown in Figure 2, described main control loop includes master controller LOGO that is connected with casing 24V direct-current input power supplying outward and the temperature display watch KT that is connected with casing 24V direct-current input power supplying outward, wherein, described master controller adopts Siemens LOGO, being used on the connect box door controlled the electric motor starting button SB1 and the stop button SB3 of motor start-stop respectively, and remote activation button SB2, long-range stop button SB4, remote reset button SB5, and electric motor starting button SB1 and stop button SB3 and remote activation button SB2, long-range stop button SB4, remote reset button SB5 is by being arranged on this locality on the cabinet door, the switching of remote plug SW is connected with casing 24V direct-current input power supplying outward.Press start button SB1 rear motor and start, press stop button SB3 rear motor and stop.Reset button SB5 is Push-button lamp flicker in the time of 3 minutes, and the operator presses SB5 can make pump remain in operation, otherwise 4 minutes pumps can stop automatically; Described remote activation button SB2, long-range stop button SB4, remote reset button SB5 are installed in the remote key-press box; Master controller LOGO is also by the normally closed auxiliary contact of temperature display watch KT and the outer 24V direct-current input power supplying of casing that is connected in series of overheated year relay FR normally closed auxiliary contact, the high pilot lamp of yellow temperature is bright when pipe temperature is too high, the normally closed auxiliary contact of thermal overload relay FR disconnects or the normally closed auxiliary contact of temperature display watch KT disconnects, pump stops, and can protect the cryopump motor not to be damaged; The output of master controller LOGO connects the coil of star-like operation relay K A1, the coil of angle type operation relay K A2 and the display lamp H in the remote button box respectively, display lamp H in the remote button box gets electric demonstration, be that prompting operation person arrived in 3 minutes, need press reset button, otherwise can be considered as unattended, termination of pumping in 4 minutes; Described temperature display watch KT is provided with excess temperature pilot lamp H4.
As shown in Figure 3, described second control loop includes following many loops parallel with one another: the phase sequence of series connection detects the normally opened contact of relay K 1, the normally opened contact of star-like operation relay K A1, the normally closed contact of the contactor KM2 of phase sequence inverse time, the contactor KM1 coil of phase sequence timing successively, wherein, phase sequence detects another termination of normally opened contact 24V direct supply of relay K 1, another termination 0V power supply of contactor KM1 coil, the normally opened contact of star-like operation relay K A1 wherein also are connected in parallel with the normally opened contact of angle type operation relay K A2; The normally closed contact of the contactor KM1 of the normally closed contact of the phase sequence detection relay K 1 of connecting successively, the normally opened contact of star-like operation relay K A1, phase sequence timing, the coil of the contactor KM2 of phase sequence inverse time, wherein, phase sequence detects another termination of normally closed contact 24V direct supply of relay K 1, another termination 0V power supply of the contactor KM2 coil of phase sequence inverse time, the normally opened contact of star-like operation relay K A1 also are connected in parallel with the normally opened contact of angle type operation relay K A2; Normally opened contact, star-like operation contactor KM4 normally closed contact, the angle type of the angle type operation relay K A2 of series connection move the coil of contactor KM3 successively, wherein, another termination 24V direct supply of the normally opened contact of angle type operation relay K A2, another termination 0V power supply of the coil of angle type operation contactor KM3; The normally opened contact of Chuan Lian star-like operation relay K A1, angle type move the normally closed contact of contactor KM3, the coil of star-like operation contactor KM4 successively, wherein, another termination 24V direct supply of star-like operation relay K A1 normally opened contact, another termination 0V power supply of star-like operation contactor KM4 coil; Also be provided with: end connection 24V direct supply, the other end are connected in series the normally opened contact of the indicating relay KA3 that powers on of red power light H2; One end connection 24V direct supply, the other end are connected in series the normally opened contact of the thermal overload relay FR of yellow temperature alarming pilot lamp H5; And one end connect the normally opened contact of the angle type operation contactor KM3 of 24V direct supply, other end serial connection green engine run indicator H3, and motor run indicator H3 also is in parallel with hours run table H6; This loop also is provided with: the end after the normally opened contact parallel connection of the normally opened contact of star-like operation relay K A1 and angle type operation relay K A2 is connected 24V direct supply, the other end towards the mobile generator control box, and is provided with the 24V power light H1 that is connected on the both ends of power.
Because phase sequence detects, then the contact of K1 has one and is in closure state, presses start button SB1, and KA1 is made war closed, is given to the generator signal, and generator begins to power, then have among KM1 or the KM2 one charged, the contactor adhesive; KM4 is charged, contactor adhesive, the then star-like startup of motor.Because LOGO control, it is charged to switch to KA2, then opens wide the battle of KA1, and KA2 is made war closed, the KM4 coil losing electricity, and normally closed some closure, the KM3 coil gets electric, then contactor KM3 adhesive, the operation of motor angle type, this moment, H3 was bright, the operation of expression motor, hour meter picks up counting.KA3 is the normally opened contact of indicating relay of powering on, and when the three-phase supply power supply, then closed, the H2 lamp is bright, and the expression power supply obtains.The normally opened contact closure of thermal overload relay FR when temperature is too high, H5 lights warning.
Input end at above-mentioned direct supply is connected with the 4A fuse.
The utility model is fit to power of motor: 22KW or 30KW; Rated current: 44A or 63A; Rated voltage: 3 phase AC380V; Control power supply: DC24V; Have the too high defencive function of cryopump temperature, have only temperature to be lower than-120 degree (adjustable) and just can start pump, be initially set-120 degree.
Control box of the present utility model can only can not connect other form power supplys in direct current 24V ability operate as normal, guarantees that the input polarity of control box control power supply is extremely important.Main circuit and control circuit external power supply cable adopt following standard: control circuit external power supply cable: 2 * 1.5MM, cable splice are M20.Main circuit external power supply cable: 3 * 16MM+2 * 6MM, cable splice are PG36.The remote button box is with adopting 6 * 1.0+1 * 1.0MM umbilical cable between the control box, the button box end line connects, and the control box end connects according to drawings marked and gets final product.Motor cable adopts the 16MM cable.Interlock signal wire to generator adopts 2 * 1.5MM cable, is equipped with one.External cable all enters casing below chest, anti-sealing is in cable flows into casing.
Connect power lead and control lines such as button box, PT100 according to drawing.Keep main switch to disconnect, far-end send main electricity, and the control discharge cock disconnects, and storage battery send in the car.Whether whether normal with multimeter test primary power, having phase shortage and voltage whether to be stabilized in normal range can only 380V positive and negative 10%.No problem, the main switch that closes, red power light is bright.Check whether the control power supply is normal, DC24V is positive and negative 10%, and whether polarity is correct.No problem, the control discharge cock closes.Guarantee that pipe temperature is lower than-120 degree of setting, if be higher than-120 degree, then following operation can't be carried out.Local remote plug is got to this locality, and by green start button, motor rotates followed by by red stop button, sees down whether motor normally starts, if counter-rotating needs to adjust the motor wiring, repeats to operate just now again, sees whether run well.Local remote plug is got to long-range, by green start button, motor rotates followed by by red stop button.Press the button green start button on the box again, wait three minutes after yellow band button flicker on the button box, if not according to yellow band button, motor will shut down after one minute again, if by yellow band button, yellow band button flicker on three minutes button boxes, so circulation.Press the button red stop button on the box, motor is out of service.
Claims (5)
1. cryopump control box, it is characterized in that, include direct connection and drive the cryopump motor M major loop, be provided with the main control loop of master controller, and link to each other with major loop, main control loop respectively, receive the signal of main control loop and control second control loop of major loop, wherein, major loop is by ac power supply, and the main control loop and second control loop are by DC power supply.
2. cryopump control box according to claim 1 is characterized in that described major loop includes the circuit breaker Q S1 that links to each other with three-phase supply; The reometer PA that links to each other with power supply by current transformer TA, and the coil of indicating relay KA3 and the coil that phase sequence detects relay K 1 of powering on that link to each other with power supply respectively; Also be provided with the first contactor KM1 and the second contactor KM2, the first contactor KM1 is in parallel with the second contactor KM2 and is connected, input end after its parallel connection links to each other with three-phase supply, output terminal after the parallel connection by overheated year relay FR respectively with three-phase input end U1, VI, the WI of motor M, and the input end of angle type operation contactor KM3 connects, also be provided with star-like operation contactor KM4, the output terminal of the output terminal of described star-like operation contactor KM4 and angle type operation contactor KM3 is connected three-phase input end V2, W2, the U2 of motor M jointly.
3. cryopump control box according to claim 1, it is characterized in that, described main control loop includes master controller LOGO that is connected with direct-current input power supplying and the temperature display watch KT that is connected with direct-current input power supplying, wherein, described master controller LOGO connects electric motor starting button SB1 and stop button SB3 respectively, and remote activation button SB2, long-range stop button SB4, remote reset button SB5, and electric motor starting button SB1 and stop button SB3 and remote activation button SB2, long-range stop button SB4, remote reset button SB5 is by this locality, the switching of remote plug SW is connected with direct-current input power supplying; Described remote activation button SB2, long-range stop button SB4, remote reset button SB5 are installed in the remote key-press box; Master controller LOGO is the direct-current input power supplying that is connected in series of the normally closed auxiliary contact of the normally closed auxiliary contact by temperature display watch KT and thermal overload relay FR also; Master controller LOGO output connects the coil of star-like operation relay K A1, the coil of angle type operation relay K A2 and the display lamp H in the remote button box respectively.
4. cryopump control box according to claim 1, it is characterized in that, described second control loop includes following many loops parallel with one another: the phase sequence of series connection detects the normally opened contact of relay K 1 successively, the normally opened contact of star-like operation relay K A1, the normally closed contact of the contactor KM2 of phase sequence inverse time, the contactor KM1 coil of phase sequence timing, wherein, phase sequence detects another termination direct supply of normally opened contact of relay K 1, another termination 0V power supply of contactor KM1 coil, the normally opened contact of star-like operation relay K A1 wherein also are connected in parallel with the normally opened contact of angle type operation relay K A2; The normally closed contact of the contactor KM1 of the normally closed contact of the phase sequence detection relay K 1 of connecting successively, the normally opened contact of star-like operation relay K A1, phase sequence timing, the coil of the contactor KM2 of phase sequence inverse time, wherein, phase sequence detects another termination direct supply of normally closed contact of relay K 1, another termination 0V power supply of the contactor KM2 coil of phase sequence inverse time, the normally opened contact of star-like operation relay K A1 also are connected in parallel with the normally opened contact of angle type operation relay K A2; Normally opened contact, star-like operation contactor KM4 normally closed contact, the angle type of the angle type operation relay K A2 of series connection move the coil of contactor KM3 successively, wherein, another termination direct supply of the normally opened contact of angle type operation relay K A2, another termination 0V power supply of the coil of angle type operation contactor KM3; The normally opened contact of Chuan Lian star-like operation relay K A1, angle type move the normally closed contact of contactor KM3, the coil of star-like operation contactor KM4 successively, wherein, another termination direct supply of star-like operation relay K A1 normally opened contact, another termination 0V power supply of star-like operation contactor KM4 coil; Also be provided with: an end connects the normally opened contact of the indicating relay KA3 that powers on of direct supply, other end serial connection power light H2; One end connects the normally opened contact of the thermal overload relay FR of direct supply, other end serial connection temperature alarming pilot lamp H5; And one end connect the normally opened contact of the angle type operation contactor KM3 of direct supply, other end serial connection motor run indicator H3, and motor run indicator H3 also is in parallel with hours run table H6; This loop also is provided with: the end after the normally opened contact parallel connection of the normally opened contact of star-like operation relay K A1 and angle type operation relay K A2 is connected direct supply, the other end towards the mobile generator control box, and is provided with the power light H1 that is connected on the both ends of power.
5. cryopump control box according to claim 1 is characterized in that, is in series with the fuse of 4A at the input end of direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200975416U CN201159844Y (en) | 2007-11-07 | 2007-11-07 | Low temperature pump control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200975416U CN201159844Y (en) | 2007-11-07 | 2007-11-07 | Low temperature pump control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159844Y true CN201159844Y (en) | 2008-12-03 |
Family
ID=40110429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200975416U Expired - Fee Related CN201159844Y (en) | 2007-11-07 | 2007-11-07 | Low temperature pump control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159844Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696952A (en) * | 2013-12-12 | 2014-04-02 | 国家电网公司 | Intelligent vacuum pump |
| CN104210942A (en) * | 2014-09-28 | 2014-12-17 | 河南重工起重机集团有限公司 | Extremely low temperature detection system special for crane |
-
2007
- 2007-11-07 CN CNU2007200975416U patent/CN201159844Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696952A (en) * | 2013-12-12 | 2014-04-02 | 国家电网公司 | Intelligent vacuum pump |
| CN104210942A (en) * | 2014-09-28 | 2014-12-17 | 河南重工起重机集团有限公司 | Extremely low temperature detection system special for crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20121107 |