CN202092231U - Quick switch-off device for leakage faults of heating power stations - Google Patents
Quick switch-off device for leakage faults of heating power stations Download PDFInfo
- Publication number
- CN202092231U CN202092231U CN201120184992XU CN201120184992U CN202092231U CN 202092231 U CN202092231 U CN 202092231U CN 201120184992X U CN201120184992X U CN 201120184992XU CN 201120184992 U CN201120184992 U CN 201120184992U CN 202092231 U CN202092231 U CN 202092231U
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- switch
- water supply
- relay
- temperature humidity
- heating power
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Abstract
The utility model provides a quick switch-off device for leakage faults of heating power stations, which is mainly applied to unattended and remote-controlled heating power stations. The quick switch-off device for leakage faults of the heating power stations quickly and immediately switches off a water supply and water return system when leakage faults happen by mainly utilizing a humiture switch to sense external temperature and humidity and automatically control switch state of a switch-off valve of the water supply and water return system. By adopting the switch-off device, when leakage faults of the heating power stations happen, heat and flow lost in one-time net pipelines are reduced to the lowest value, simultaneously reserved time for maintenance workers is prolonged, and danger for the maintenance workers is reduced, thereby enabling remote control from heat companies to the heating power stations to be more convenient and more effective.
Description
Technical field
The utility model relates to a kind of fast shut-off device, relate in particular to a kind of when being used for thermal substation generation leakage accident, the shearing device of fast shut-off water supply return water system.
Background technology
Along with developing rapidly and the raising of living standards of the people of national economy and industrial and agricultural production, heating of China and central heating cause have obtained development rapidly.Northeastward, northwest, many cities and towns, North China have all been realized central heating, so have been needed thermal substation that the heating agent of heat supply network conveying is regulated, changed.Thermal substation mostly is unattended duty simultaneously, when fault is revealed in generation in the thermal substation, because the water supply return water system can't cut off automatically, therefore when the maintenance personal arrives in, because a large amount of hot water gasifies and has been full of thermal substation, makes and can't enter in the station.
Therefore how to develop a kind ofly after thermal substation water supply return water system breaks down, the device that can cut off water system immediately is that those skilled in the art are devoted to the technical problem that solves always.
Summary of the invention
The purpose of this utility model is to provide a kind of fast shut-off device, it utilizes the extraneous temperature and humidity of temperature humidity switch induction and the on off state of control stop valve automatically, thereby realizes and can once the supply water device of return water system of cut-out rapidly take place in the very first time revealing fault.
In order to achieve the above object, thermal substation leakage failure fast shut-off device described in the utility model has adopted following structure, it consists predominantly of water supply return water system and automatic control system, and described control system sends the duty of signal controlling water supply return water system by heart yearn.Concrete, described water supply return water system, include water system one time, and setting water supply repid cut-off valve and primary water system and setting backwater repid cut-off valve thereon thereon, described water supply return water system is by heart yearn, and the relay from the control system that hereinafter will mention obtains signal the duty of stop valve is controlled; Described automatic control system includes temperature humidity switch, power supply and relay, and power supply is powered to temperature humidity switch, and the temperature humidity switch output is succeeded electric apparatus coil, and relay is connected by the repid cut-off valve of heart yearn with the water supply return water system.
Further, described temperature humidity switch output is succeeded electric apparatus coil, and the normally opened contact of described relay is connected to the normally opened contact and the common of water supply stop valve respectively, and the normally closed electric shock of relay connects water supply stop valve normally-closed contact.
Further, described temperature humidity switch can join with the first manual switch series, and be parallel to hand switch jointly with this first hand switch, like this can be so that when temperature humidity switch itself breaks down, thereby can make whole water supply return water system be in uncontrollable state thereby overcome by the duty of operation hand switch control water supply return water system owing to temperature humidity switch itself loses efficacy.
Adopted thermal substation leakage failure fast shut-off device described in the utility model, reduced the cost of later stage electric power station maintenance and the loss that generation is revealed with a spot of initial cost, and then made Thermal Corp convenient, effective the remote monitoring of thermal substation.
Description of drawings
Fig. 1 is the work schematic diagram of the utility model shearing device specific embodiment
The specific embodiment
In order better to understand the purpose of this utility model, feature and function are described in detail a specific embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the work simplified schematic diagram of the utility model one specific embodiment, as seen from the figure, the described thermal substation leakage failure of this example fast shut-off device consists predominantly of water supply return water system and automatic control system, described control system is by the duty of heart yearn 6 transmission signal controlling water supply return water systems, and described in the present embodiment heart yearn is a core RVVP cable.
Described water supply return water system includes water system one time, and thereon water supply repid cut-off valve 5 and primary water system and setting backwater repid cut-off valve 4 thereon are set, and described water supply return water system obtains signal by heart yearn 6 from relay 3.
Described automatic control system includes temperature humidity switch 1, power supply 2 and relay 3, and power supply 2 gives temperature humidity switch 1 power supply, the duty of temperature humidity switch control relay, the temperature humidity switch closure, relay is started working, otherwise relay is in off working state.Concrete, temperature humidity switch 1 output is succeeded electric apparatus coil 12,13, relay is connected with the repid cut-off valve of water supply return water system by heart yearn 6, further, the normally opened contact 9,10 of relay is connected to described water supply stop valve 5 normally opened contacts and common respectively, and the normally-closed contact 11 of relay connects water supply stop valve 5 normally-closed contacts; Backwater stop valve 4 connections are the same with water supply stop valve 5, that is, two other normally opened contact of relay is connected to backwater stop valve normally opened contact and common respectively, and an other contact of relay takes back water stop valve normally-closed contact.
Again, for fear of making whole water supply return water system be in uncontrollable state owing to temperature humidity switch itself loses efficacy, temperature humidity switch 1 of the present utility model with circuit that relay 3 is connected in also be equipped with the duty of hand switch in order to the manual operation control system, as shown in Figure 1, promptly, temperature humidity switch 1 can be connected with first hand switch 7, and common in parallel with hand switch 8 with this first hand switch 7.
Describe the course of work of the described thermal substation leakage failure of present embodiment fast shut-off device below in detail, original state, water supply return water system operate as normal, the hand switch 7 of control system is in closure state, hand switch 8 is in off-state, temperature humidity switch 1 also is in off-state, when the electric power station gut line leaks, temperature and humidity reaches after the setting value simultaneously, temperature humidity switch 1 induction and closed, to relay 3 coil power supplies, thereby the conducting The whole control system, relay 3 sends control signal, signal is transmitted in the water supply repid cut-off valve 5 and the backwater repid cut-off valve 4 of water supply return water system respectively by heart yearn 6, thereby cut off the duty of water supply return water system, and then stoped a large amount of hot water gasifications and spread the phenomenon at whole hot water station.
Can also be embodied as owing to present embodiment again, the temperature humidity switch 1 of control system is connected with first hand switch 7, and be parallel to second hand switch 8 jointly with this first hand switch 7, even therefore problem has appearred in described temperature humidity switch, also can control the duty of this control system by manual mode.Concrete control step is, when temperature humidity switch 1 lost efficacy can't be closed the time, closes second hand switch 8, thereby realizes the closed circuit of control system; When the temperature humidity switch inefficacy can't be opened, open first hand switch 7, thereby realize opening circuit of control system.Other the course of work is the same with the independent course of work of warm and humid gauge tap of using.
Adopted the described shearing device of present embodiment, the heat and the flow that can make webmaster line loss lose reduce to minimum, simultaneously for the maintenance personal has striven for the time, and have reduced maintenance personal's danger; In addition,, make when instrument and meter goes wrong, also can give the power supply of relay 3, thereby turn off, overhaul instrument, make that system's operation is more stable for the backwater stop valve by hand control switch owing to increased hand control switch; Have, this device can be connected with robot control system(RCS) in the station again, thereby realizes station interior control, perhaps Long-distance Control separately.
The above only is a preferred forms of the present utility model, should be pointed out that for those skilled in the relevant art, and under the prerequisite that does not break away from the principle of the invention, trickle modification and the improvement made also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a thermal substation leakage failure fast shut-off device is characterized in that it includes water supply return water system and automatic control system, and described control system sends the duty of signal controlling water supply return water system by heart yearn (6).
2. thermal substation leakage failure fast shut-off device as claimed in claim 1, it is characterized in that, described water supply return water system, include water system one time, and setting water supply repid cut-off valve (5) and primary water system and setting backwater repid cut-off valve (4) thereon thereon, described water supply return water system obtains signal by heart yearn (6) from relay (3).
3. thermal substation leakage failure fast shut-off device as claimed in claim 1, it is characterized in that, automatic control system includes temperature humidity switch (1), power supply (2) and relay (3), power supply (2) is given temperature humidity switch (1) power supply, the duty of temperature humidity switch control relay, relay is connected with the repid cut-off valve of water supply return water system by heart yearn (6).
4. thermal substation leakage failure fast shut-off device as claimed in claim 1 is characterized in that described temperature humidity switch can be connected with first hand switch (7), and is parallel to hand switch (8) jointly with this first hand switch (7).
5. thermal substation leakage failure fast shut-off device as claimed in claim 1, it is characterized in that, described temperature humidity switch (1) output is succeeded electric apparatus coil (12,13), the normally opened contact of described relay (3) is connected to the normally opened contact and the common of water supply stop valve respectively, and the normally-closed contact of relay (11) connects water supply stop valve (5) normally-closed contact.
6. thermal substation leakage failure fast shut-off device as claimed in claim 1 is characterized in that described heart yearn 6 is a core RVVP cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184992XU CN202092231U (en) | 2011-06-01 | 2011-06-01 | Quick switch-off device for leakage faults of heating power stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184992XU CN202092231U (en) | 2011-06-01 | 2011-06-01 | Quick switch-off device for leakage faults of heating power stations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092231U true CN202092231U (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120184992XU Expired - Fee Related CN202092231U (en) | 2011-06-01 | 2011-06-01 | Quick switch-off device for leakage faults of heating power stations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749898A (en) * | 2012-06-25 | 2012-10-24 | 孙煜 | Monitoring apparatus and monitoring method for remotely monitoring leakage of heat distribution pipeline network |
-
2011
- 2011-06-01 CN CN201120184992XU patent/CN202092231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749898A (en) * | 2012-06-25 | 2012-10-24 | 孙煜 | Monitoring apparatus and monitoring method for remotely monitoring leakage of heat distribution pipeline network |
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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: 20111228 Termination date: 20140601 |