CN201207583Y - Power supply circuit for high-low voltage rare oil station - Google Patents
Power supply circuit for high-low voltage rare oil station Download PDFInfo
- Publication number
- CN201207583Y CN201207583Y CNU2008200207609U CN200820020760U CN201207583Y CN 201207583 Y CN201207583 Y CN 201207583Y CN U2008200207609 U CNU2008200207609 U CN U2008200207609U CN 200820020760 U CN200820020760 U CN 200820020760U CN 201207583 Y CN201207583 Y CN 201207583Y
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- China
- Prior art keywords
- power supply
- oil station
- low voltage
- control circuit
- low pressure
- 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
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Abstract
The utility model discloses a high/low voltage lubricating station power supply circuit, which comprises a normal power supply and a control circuit, and is characterized in that: the circuit also includes an emergency power supply, and the normal power supply and the emergency power supply are connected with the control circuit through a double-power automatic switch-in device. The utility model has the advantages that: the double-power automatic switch-in device is arranged, so the emergency power supply can supply power to equipment automatically after the normal power supply is cut suddenly; and the circuit is simple in structure, low in cost, convenient and practical, and suitable for promotion and application.
Description
(1) technical field
The utility model relates to high-low pressure Lubricating-oil Station equipment technical field, particularly a kind of high-low pressure Lubricating-oil Station power supply circuits.
(2) background technology
The high-low pressure Lubricating-oil Station is mainly used in coal pulverizer bearing lubrication, according to the lubricated work principle design of dynamic and hydrostatic bearing.Be made up of two low-lift pumps and two high pressure pump systems, main frame provides lubricated by low-lift pump when normal operation, and high-pressure pump is when only being used in host-initiated and stopping.The high-low pressure Lubricating-oil Station power supply circuits that use mainly comprise normal power supply power supply and control circuit at present, do not have the emergency service power supply, and after normal power supply power supply sudden power, equipment can not run well, and has reduced the useful life of equipment.
(3) summary of the invention
The technical problems to be solved in the utility model has provided a kind of high-low pressure Lubricating-oil Station power supply circuits, and after normal power supply power supply sudden power, the emergency service power supply can be a power devices automatically.。
In order to solve the problems of the technologies described above, the utility model is realized by following measure: a kind of high-low pressure Lubricating-oil Station power supply circuits, comprise normal power supply power supply and control circuit, it is characterized in that: also comprise the emergency service power supply, described normal power supply power supply links to each other with control circuit by the duplicate supply automatic bus with the emergency service power supply.
The beneficial effects of the utility model:
1. be provided with the duplicate supply automatic bus, after normal power supply power supply sudden power, the emergency service power supply can be a power devices automatically.
2. simple in structure, with low cost, convenient and practical, suitable applying.
(4) description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a control schematic diagram of the present utility model.
ZT among the figure: the duplicate supply automatic bus, KM1, KM2, KM3, KM4: contactor,
QF1, QF2, QF3, QF4: circuit breaker, FR1, FR2, FR3, FR4: thermal relay,
M1, M2, M3, M4: motor.
(5) embodiment
Be illustrated in figure 1 as a specific embodiment of the present utility model, a kind of high-low pressure Lubricating-oil Station power supply circuits, comprise normal power supply power supply and control circuit, also comprise the emergency service power supply, described normal power supply power supply links to each other with control circuit by duplicate supply automatic bus ZT with the emergency service power supply.
Control circuit comprises motor M 1, M2, M3, the M4 of two low-lift pumps and two high-pressure pumps, and contactor KM1, the KM2, KM3, the KM4 that link to each other with each motor, circuit breaker Q F1, QF2, QF3, QF4 and thermal relay FR1, FR2, FR3, FR4.
Operation principle: in the electric power incoming line loop of high-low pressure Lubricating-oil Station, increase duplicate supply automatic bus ZT, the side joint two-way power supply of duplicate supply automatic bus ZT, one the tunnel is the normal power supply power supply, another road is the emergency service power supply, the opposite side of duplicate supply automatic bus ZT supplies working power for the high-low pressure Lubricating-oil Station, generally, the normal power supply power supply is the power supply of high-low pressure Lubricating-oil Station, if normal power supply power supply sudden power, duplicate supply automatic bus ZT is the working power of high-low pressure Lubricating-oil Station automatically with the emergency service power source conversion, assurance high-low pressure Lubricating-oil Station is not cut off the power supply, and guarantees that equipment runs well.
Claims (1)
1. high-low pressure Lubricating-oil Station power supply circuits comprise normal power supply power supply and control circuit, it is characterized in that: also comprise the emergency service power supply, described normal power supply power supply links to each other with control circuit by the duplicate supply automatic bus with the emergency service power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200207609U CN201207583Y (en) | 2008-04-25 | 2008-04-25 | Power supply circuit for high-low voltage rare oil station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200207609U CN201207583Y (en) | 2008-04-25 | 2008-04-25 | Power supply circuit for high-low voltage rare oil station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207583Y true CN201207583Y (en) | 2009-03-11 |
Family
ID=40466639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200207609U Expired - Fee Related CN201207583Y (en) | 2008-04-25 | 2008-04-25 | Power supply circuit for high-low voltage rare oil station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207583Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878415A (en) * | 2012-10-11 | 2013-01-16 | 大唐黄岛发电有限责任公司 | Improved fan oil station electrical control system |
| CN104333124A (en) * | 2014-11-25 | 2015-02-04 | 济南重工股份有限公司 | Double-power-supply automatic switching circuit of high-low pressure thin-oil station |
-
2008
- 2008-04-25 CN CNU2008200207609U patent/CN201207583Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878415A (en) * | 2012-10-11 | 2013-01-16 | 大唐黄岛发电有限责任公司 | Improved fan oil station electrical control system |
| CN104333124A (en) * | 2014-11-25 | 2015-02-04 | 济南重工股份有限公司 | Double-power-supply automatic switching circuit of high-low pressure thin-oil station |
| CN104333124B (en) * | 2014-11-25 | 2016-05-25 | 济南重工股份有限公司 | A kind of dual power supply of high-low pressure Lubricating-oil Station is hauled oneself willingly into circuit |
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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: 20090311 |