CN204436129U - The control device of steam power station factory building pneumatic door - Google Patents
The control device of steam power station factory building pneumatic door Download PDFInfo
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- CN204436129U CN204436129U CN201420793702.5U CN201420793702U CN204436129U CN 204436129 U CN204436129 U CN 204436129U CN 201420793702 U CN201420793702 U CN 201420793702U CN 204436129 U CN204436129 U CN 204436129U
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- pneumatic door
- electromagnetic valve
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- valve coil
- control device
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Abstract
The control device of a kind of steam power station factory building pneumatic door, comprise the electromagnetic valve be located on pneumatic door, electromagnetic valve comprises out pneumatic door electromagnetic valve coil and closes pneumatic door electromagnetic valve coil, described pneumatic door electromagnetic valve coil of opening is connected power cabinet with pass pneumatic door electromagnetic valve coil by feed cable, and power cabinet connects DCS rack by a signal cable.The beneficial effects of the utility model are: compared to the prior art, by the merging to pneumatic door signal cable and feed cable, when original function can be realized, save cable and mounting material thereof, shorten the construction period, there are good economic and social benefits.
Description
Technical field
The utility model relates to the control device for steam power station factory building pneumatic door switch.
Background technology
In the main building of steam power station, pneumatic door is generally double air controlled control loop, each pneumatic door band two five-way pilot solenoid valves, and two of pilot solenoid valve refer to that two positions are controlled: open pneumatic door, closes pneumatic door.Two five-way electromagnetic valves have two coils, a coil opening pneumatic door, a coil closing pneumatic door.Two coils of electromagnetic valve simultaneously can only one charged, the electromagnetic valve coil of the open and close pneumatic door source of the gas control loop that charged (for the charged electromagnetic valve action of coil, lower with) realizes pneumatic door respectively switches thus opens, closes pneumatic door.
Design routinely, two coils of a double air controlled pneumatic door electromagnetic valve, need to draw two-way power supply cable to pneumatic door electromagnetic valve on the spot from two current supply circuits of 220VAC power supply disks respectively; Simultaneously control instruction laid two signal cables to pneumatic door electromagnetic valve on the spot from DCS rack, being connected in series of power supply and DCS open and close instruction is done at pneumatic door electromagnetic valve place on the spot, realize pneumatic door controlling functions, as shown in Figure 1: the pneumatic door electromagnetic valve coil 21 of opening of pneumatic door 1 is connected power cabinet 5 with pass pneumatic door electromagnetic valve coil 22 respectively by a feed cable 3, connects DCS rack 6 respectively by a control cables 4.
As seen from Figure 1, the pneumatic door open and close of a double air controlled control needs two current supply circuits, two feed cables, the open and close control instruction signal cable that two DCS come.Steam power station pneumatic door quantity is many, and for two 600MW units, pneumatic door about has 300.Pneumatic door open and close control needs two feed cables, two signal cables, and amount to four cables, two 600MW units, 300 pneumatic doors need 1200 cables.
In sum, designing pneumatic door routinely, to there is cable amount too much, the problem such as the workload of cable laying is large, under the double requirements of saving cable, duration construction speed, this mode of connection can not meet the demands, need to carry out design innovation, reduce number of cables, meet energy-conservation, to shorten construction period requirement.
Utility model content
The purpose of this utility model is to provide the control device of a kind of steam power station pneumatic door switch, and it can save cable.
The technical solution of the utility model is:
The control device of a kind of steam power station factory building pneumatic door, comprise the electromagnetic valve be located on pneumatic door, electromagnetic valve comprises out pneumatic door electromagnetic valve coil and closes pneumatic door electromagnetic valve coil, described pneumatic door electromagnetic valve coil of opening is connected power cabinet with pass pneumatic door electromagnetic valve coil by feed cable, and power cabinet connects DCS rack by a signal cable.
Described pneumatic door electromagnetic valve coil of opening is connected power cabinet with pass pneumatic door electromagnetic valve coil by the feed cable merging into.
The control instruction of described DCS rack is connected in a terminal block of power cabinet current supply circuit, wherein signal cable open A, K terminal that instruction connects this terminal block, the pass instruction of signal cable connects A, L terminal of this terminal block, power supply of having gone here and there is opened instruction and is gone the feed cable of pneumatic door electromagnetic valve coil to connect N, K terminal of this terminal block, closes instruction and goes the feed cable of pneumatic door electromagnetic valve coil to connect N, L terminal of this terminal block.
Described electromagnetic valve is two five-way pilot solenoid valves, and it connects cylinder.
The beneficial effects of the utility model are: compared to the prior art, by the merging to pneumatic door signal cable and feed cable, when original function can be realized, save cable and mounting material thereof, shorten the construction period, there are good economic and social benefits.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art.
Fig. 2 is schematic diagram of the present utility model (1).
Fig. 3 is schematic diagram of the present utility model (2).
Fig. 4 is the schematic diagram of power cabinet current supply circuit terminal block.
Detailed description of the invention
As Fig. 2, the control device of a kind of steam power station factory building pneumatic door, comprise the electromagnetic valve 2 be located on pneumatic door 1, electromagnetic valve 2 comprises out pneumatic door electromagnetic valve coil 21 and closes pneumatic door electromagnetic valve coil 22, open pneumatic door electromagnetic valve coil 21 and be connected power cabinet 5 with pass pneumatic door electromagnetic valve coil 22 by feed cable 3, power cabinet 5 connects DCS rack 6 by a signal cable 4.Electromagnetic valve 2 is two five-way pilot solenoid valves, and two five-way pilot solenoid valves connect cylinder 23.
Conventional design is that the open and close control instruction signal of pneumatic door, feed cable are applied to pneumatic door electromagnetic valve place on the spot, realizes pneumatic door open and close control in pneumatic door electromagnetic valve crosstalk source on the spot.Thermal control design personnel consider DCS rack and power cabinet usually in same electric room or adjacent room, the feature of close together, change into and open and close control instruction signal cable is applied to power supply disks, behind power supply disks crosstalk source, again by cable laying to pneumatic door place, the open and close realizing pneumatic door control, and reach the object of saving cable, as shown in Figure 2.
Thermal control design personnel are according to the control principle of pneumatic door, be optimized design further, each pneumatic door designs a road power supply, forms open and close two-way control loop respectively, merge a cable to pneumatic door place on the spot, reach the object of saving electric power loop and saving cable.As Fig. 3, the control device of a kind of steam power station factory building pneumatic door, the pneumatic door electromagnetic valve coil 21 of opening comprising pneumatic door 1 is connected power cabinet 5 with pass pneumatic door electromagnetic valve coil 22 by the feed cable 3 merging into, and power cabinet 5 connects DCS rack 6 by a control cables 4.
Design after optimization pneumatic door open and close control instruction signal cable behind 220VAC power supply disks crosstalk source is merged a pneumatic door electromagnetic valve extremely on the spot, this design is that thermal control design personnel are according to long-term design experiences, in conjunction with the demand of power plant, innovative design economic and practical, safe and reliable method out.Concrete wiring is as shown in Figure 4:
In figure, a terminal block one to No. four terminal is four wiring terminal: 1A(terminal of a 220VAC power supply disks current supply circuit (1DK)), 1N(No. bis-terminals), 1K(No. tri-terminals) and, 1L(No. tetra-terminals).Each current supply circuit of 220VAC power supply disks all has four wiring terminals, is respectively A, N, K, L wiring terminal, four terminals upper different wiring terminal of numbering of corresponding terminal row respectively of each current supply circuit.The wiring of 1DK current supply circuit is illustrate only in figure.
For pneumatic door 26DV01 in figure, suppose that its current supply circuit is the 1DK of 220VAC power supply disks.The control instruction of DCS rack is connected in a terminal block of 220VAC power cabinet current supply circuit, wherein signal cable 4 open one (A), three (K) terminal that instruction connects a terminal block, the pass instruction of signal cable 4 connects one (A), four (L) terminal of a terminal block, power supply of having gone here and there is opened instruction and is gone the feed cable 3 of pneumatic door electromagnetic valve coil 21 to connect two (N), three (K) terminal of a terminal block, closes instruction and goes the feed cable 3 of pneumatic door electromagnetic valve coil 22 to connect two (N), four (L) terminal of a terminal block.Go the cable of electromagnetic valve on the spot can merge into one from the complete power supply of power cabinet string like this, about 300 the pneumatic door open and close of two 600MW units control only to need 300 cables.The design being directly connected to pneumatic door electromagnetic valve on the spot with feed cable and control cables is compared, 900 cables have been saved in this design, pneumatic door is considered to the distance of electric room 220VAC power cabinet by average 130m, two 600MW units will save cable 117Km, and corresponding cable laying amount also greatly reduces.The current supply circuit of 220VAC power supply disks also will save half, and the quantity of power supply disks also declines thereupon.
Merging for steam power station pneumatic door open and close command signal cable behind 220VAC power supply disks crosstalk source goes pneumatic door electromagnetic valve on the spot to save cable.
Popularizing application prospect:
Pneumatic door open and close command signal cable behind 220VAC power supply disks crosstalk source merges, and this design innovation, significantly can save cable and cable laying amount, investment reduction, the reduction of erection time, the requirement of response national energy-saving.
Expection benefit:
Adopt pneumatic door open and close command signal cable behind 220VAC power supply disks crosstalk source to merge the mode of this design innovation, calculate by two 600MW level units:
1) power supply disks expense reduces:
Two units about 300 pneumatic doors, each pneumatic door controls minimizing ring current, reduces by 300 current supply circuits altogether, and each power cabinet calculates by 60 loops, saves 5 power cabinets
Δ CI1=4*5=20 ten thousand yuan (power cabinet calculates by 40,000 yuan of every faces)
2) cable expense and cable mounting cost is saved
Cable 117Km saved by two stoves
Δ CI2=117*2=234 ten thousand yuan (cable presses 20 yuan every meter, 1 kilometer 20,000 yuan calculating)
3) to sum up, cost of investment variable quantity:
Δ LCC=Δ CI1+ Δ CI2 ≌ (-20)+(-234) ≌-254 ten thousand yuan.
Above data are visible, and pneumatic door control instruction cable behind 220VAC power supply disks crosstalk source merges, and the economic influence of this design is larger, save cable, the reduction of erection time, meet power conservation requirement, in life cycle management Nei Quan factory cost-saved about 2,540,000 yuan, there is good economic benefit.
Claims (4)
1. the control device of a steam power station factory building pneumatic door, comprise the electromagnetic valve (2) be located on pneumatic door (1), electromagnetic valve (2) comprises out pneumatic door electromagnetic valve coil (21) and closes pneumatic door electromagnetic valve coil (22), it is characterized in that: described in open pneumatic door electromagnetic valve coil (21) and be connected power cabinet (5) with pass pneumatic door electromagnetic valve coil (22) by feed cable (3), power cabinet (5) is by signal cable (4) connection DCS rack (6).
2. the control device of steam power station as claimed in claim 1 factory building pneumatic door, is characterized in that: described in open pneumatic door electromagnetic valve coil (21) and close pneumatic door electromagnetic valve coil (22) and be connected power cabinet (5) by the feed cable (3) merging into.
3. the control device of steam power station as claimed in claim 2 factory building pneumatic door, it is characterized in that: the control instruction of described DCS rack (6) is connected in a terminal block of power cabinet (5) current supply circuit, wherein signal cable (4) open the A that instruction connects this terminal block, K terminal, the pass instruction of signal cable (4) meets the A of this terminal block, L terminal, power supply of having gone here and there is opened instruction and is gone the feed cable of pneumatic door electromagnetic valve coil (21) (3) to meet the N of this terminal block, K terminal, closing instruction goes the feed cable of pneumatic door electromagnetic valve coil (22) (3) to meet the N of this terminal block, L terminal.
4. the control device of the steam power station factory building pneumatic door as described in claim 1,2 or 3, described electromagnetic valve (2) is two five-way pilot solenoid valves, and it connects cylinder (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793702.5U CN204436129U (en) | 2014-12-16 | 2014-12-16 | The control device of steam power station factory building pneumatic door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793702.5U CN204436129U (en) | 2014-12-16 | 2014-12-16 | The control device of steam power station factory building pneumatic door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436129U true CN204436129U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793702.5U Expired - Fee Related CN204436129U (en) | 2014-12-16 | 2014-12-16 | The control device of steam power station factory building pneumatic door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107756A (en) * | 2017-12-19 | 2018-06-01 | 中国电建集团河南省电力勘测设计院有限公司 | A kind of batch pneumatic door centrally connected power supply and control device on the spot |
-
2014
- 2014-12-16 CN CN201420793702.5U patent/CN204436129U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107756A (en) * | 2017-12-19 | 2018-06-01 | 中国电建集团河南省电力勘测设计院有限公司 | A kind of batch pneumatic door centrally connected power supply and control device on the spot |
| CN108107756B (en) * | 2017-12-19 | 2021-05-11 | 中国电建集团河南省电力勘测设计院有限公司 | On-site centralized power supply and control device for batch pneumatic doors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20161216 |