CN2042152U - Automatic steam-boiler protector with overpressure alarm - Google Patents
Automatic steam-boiler protector with overpressure alarm Download PDFInfo
- Publication number
- CN2042152U CN2042152U CN 88210324 CN88210324U CN2042152U CN 2042152 U CN2042152 U CN 2042152U CN 88210324 CN88210324 CN 88210324 CN 88210324 U CN88210324 U CN 88210324U CN 2042152 U CN2042152 U CN 2042152U
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- China
- Prior art keywords
- boiler
- pressure gauge
- branch road
- relay
- control circuit
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- 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.)
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Abstract
The utility model relates to a boiler safety device which is an automatic steam-boiler protector with an overpressure alarm. The utility model comprises a pressure gauge and a control box provided with a control circuit. When overpressure exists in a boiler, a signal is output to the control box through the pressure gauge. One face of the pressure gauge sends out an audible and visual alarm while the other face simultaneously outputs a control electrical signal for stopping working of a blower or a fuel supply system, in order to switch on an electrodynamic pressure release valve for realizing the purpose of protecting the boiler. The utility model has the advantages of simple control circuit and complete function. No change of the original structure of the boiler is required for application.
Description
The utility model relates to a kind of steam boiler superpressure warning automatic safety device, belongs to boiler safety device.
At present the main safety attachment on the boiler has: safety valve, Pressure gauge and blowdown apparatus etc., but these parts alert furnace pressure state does not initiatively still also accomplish to protect automatically boiler when superpressure occurring.The patent application document of the Decree of Patent Office of China: CN85203810 provides " boiler safety energy-saving electric alarm " technology to people, and this device cooperates monitoring ruuning situation, control section subsidiary engine and photoelectric alarm when the superpressure by being contained in temperature sensor on pot body and electrical equipment.But this technology has 2 deficiencies: 1. the attaching temperature sensor need change the boiler structure of now having finalized the design on boiler body; The electronic control circuit that adopts too complicated.
The purpose of the utility model is the shortcoming that overcomes prior art; a kind of steam boiler original structure and open-and-shut boiler safety device of control circuit of not changing is provided, and it can be reported to the police when the boiler superpressure at once and the while interlocking action protects boiler to overcome superpressure danger automatically.
The utility model is achieved in that it has the superpressure of realization to report to the police, protect the control cabinet of control circuit line plate to constitute automatically in being reached by the Pressure gauge that is contained in intrinsic dress table place on the boiler body, Pressure gauge outlet links to each other with control cabinet, and control cabinet is drawn two-way controlled source line and linked to each other with the intrinsic electronic pressure relief device of boiler blower motor or fuel system and boiler respectively; Described superpressure is reported to the police, the automatic protection circuit branch road that to be normal opened contact branch road that the Pressure gauge port of export and a relay J be connected in series mutually and J in the vertoro two ends parallel connection of a 24V be connected in series mutually with a news Chinese percussion instrument.Another normal opened contact of relay J is serially connected with in the power line of the electronic pressure relief device of boiler, and the normally closed contact of J is serially connected with in the power line of blower motor or fuel system.
In such scheme, Pressure gauge is actually a pot inner pressure sensor, and its port of export that is connected in the control circuit plays the control on-off action.When pot inner pressure just often, then Pressure gauge exports two terminal circuits and is open-circuit condition, Chuan Jie relay J no power with it, its each contact still keeps normality, thus the normal battle of the J that is connected in series with the news Chinese percussion instrument open-circuit condition still.When occurring the superpressure state in the pot, Pressure gauge exports just short circuit of two terminal circuits, J energising like this, and each contact of making J is transition status all: normal battle of the closure that be connected in series with the news Chinese percussion instrument is switched on the news Chinese percussion instrument thereby is sent alarm sound; Disconnect the normally closed this moment that is connected on air blast or the fuel system power line, thereby make their non-transformers and the no longer pressurization that quits work; Normal this moment battle that is connected in the electronic pressure relief device power line is closed, makes its energising work, begins the pressure release of exitting.Make pot inner pressure recover normal condition, then the The whole control circuit returns to normal again, and the annex of being controlled, subsidiary engine are also corresponding to return to normal.
For making the utility model more science, operation reliably, also can do following perfect to its control circuit: push switch branch road in Pressure gauge outlet two ends parallel connection, hand switch of serial connection on news Chinese percussion instrument branch road.With a normally closed contact of relay J connect with a green indicating lamp, the normal opened contact of J connects with a red led, again these two branch roads are parallel on the AC transformation coil of a 6.3V.Here, whether press button is to check the control circuit operation normal for the operator imitates the superpressure state; Green indicating lamp is glittering during normality, and during the superpressure state, green light goes out, the glittering warning of red led; Because the superpressure recovering state needs a period of time to normality many time, if ringing all the time, the news Chinese percussion instrument of reporting to the police causes noise pollution around then giving during this period of time.For fear of this situation, can be firm once ringing the hand switch that disconnection is connected in series with it at the news Chinese percussion instrument, pot inner pressure state just can monitor by light on and off red, green indicator lamp during this.
The utility model has the advantages that:
1. the pressure system that is used for steam boiler one class can be reported to the police and control to the automatic optoacoustic of superpressure state, eliminates this precarious position;
2. do not do any change for the structure of boiler itself and intrinsic annex thereof when using;
3. its frame for movement and control circuit structure are all very simple and multiple functional.
Accompanying drawing 1 is an application connection layout of the present utility model.
Accompanying drawing 2 is the control cabinet structure chart among the utility model embodiment.
Accompanying drawing 3 is the control warning circuit schematic diagram among the utility model embodiment.
Accompanying drawing 4 is the control protection electric circuit schematic diagram.
Below in conjunction with accompanying drawing the utility model embodiment is done a narration:
Adopted magnetic to help this new product of electro connecting pressure gauge as pressure sensor in the present embodiment, the action of its contact is reliable and stable, the life-span long, not oxidation, can avoid mistake newspaper or mistake to protect.Fig. 1 has showed that the utility model realizing that it reports to the police to superpressure and system's connection status during interlock protection boiler function: when superpressure occurring in the drum; magnetic helps electro connecting pressure gauge 1 promptly to transfer signal to the control circuit of control cabinet 2, exports the control signal of telecommunication on the one hand and goes to turn off the blast or stop for fuel, remove to connect pressure relief device so control cabinet carries out sound and light alarm on the one hand.Control cabinet shown in Figure 2 is by front panel 11 and be embedded in news Chinese percussion instrument 12, hand switch 13, alarm lamp 14, test button 15, the portable lamp 16 on its surface and the transformer 17, framework 18, rectifier bridge 19, relay 20 connector assemblies 21, terminal plate 22, the shell 23 that are contained in the housing constitute, and two binding posts 24, earthing screw 25 and fuse box 26 are arranged on the back plate washer 27.When whole device operate as normal, portable lamp 16 is green light, if the superpressure signal occurs, then portable lamp 16 goes out, alarm lamp 14 takes on a red color light and while ringing with news Chinese percussion instrument 12, at this moment the operator can play hand switch to " noise reduction " shelves, so the news Chinese percussion instrument stops ringing, by watch alarm lamp 14 whether light on and off promptly as can be known the superpressure state whether remove.1SD is that portable lamp, 2SD are alarm lamp among Fig. 3, T is a Pressure gauge outlet air valve, 2K is a hand switch, D is the news Chinese percussion instrument, when the boiler internal pressure arrived to a certain degree greatly, air valve T is backed down coupled together circuit, so relay coil J energising, the normally closed point that is connected in series with 1SD is disconnected, and the 1SD portable lamp extinguishes; Connect the normal battle that is connected in series with 2SD, and the 2SD alarm lamp is lighted; Connect with the normal battle that news Chinese percussion instrument D is connected in series, sound equipment is sent in the D energising.N is a test button among the figure, and can be used for check circuit operate as normal.
Shown in Figure 4 is to be air blast or fuel system power supply circuits, and under normal conditions, the normally closed contact that is controlled by Fig. 3 warning circuit repeat circuit J that is connected in series in the circuit is connected, so ac contactor coil C
1Energising, its iron adhesive of spreading out are air blast or fuel system power supply; Arrive to a certain degree when the boiler internal pressure is big, after air valve T switches on circuit connection, relay coil J in Fig. 3 circuit, then the normally closed contact of J will disconnect among Fig. 4, quit work thereby make ac contactor coil C outage that air blast or fuel system are cut off the power supply.
Shown in Figure 5 is to be electronic pressure relief device power supply circuits, normal opened contact that is controlled by Fig. 3 warning circuit repeat circuit coil J of serial connection in the circuit, and this contact is in off-state usually, and electronic pressure relief device is not worked; When the boiler internal pressure greatly after to a certain degree make in Fig. 3 circuit coil J energising, this normal opened contact closure then makes ac contactor coil C
2Thereby energising starts pressure relief device work.
S among Fig. 4,5, B are respectively stop button and start button.As for the CK in each circuit, all be power connection.
Claims (2)
1, a kind of steam boiler superpressure warning automatic safety device, by Pressure gauge and in have and realize to report to the police, protect the control cabinet of control circuit line plate to constitute automatically, it is characterized in that:
A, described Pressure gauge are installed in the intrinsic dress table place of boiler, and Pressure gauge outlet links to each other with control cabinet, and control cabinet is drawn two-way controlled source line and linked to each other with the intrinsic electronic pressure relief device of boiler blower motor or fuel system and boiler respectively,
B, the described warning automatic protection circuit branch road that to be normal opened contact branch road that the Pressure gauge port of export and a relay J be connected in series mutually and J in the vertoro two ends parallel connection of a 24V be connected in series mutually with a news Chinese percussion instrument; another normal opened contact of relay J is serially connected with in the power line of the electronic pressure relief device of boiler, and the normally closed contact of J is serially connected with in the power line of air blast or fuel system.
2, automatic safety device according to claim 1, feature is:
Pressure gauge port of export both sides in a, control circuit press button branch road in parallel, hand switch of serial connection on news Chinese percussion instrument branch road,
A normally closed contact of b, relay J is connected with a green indicating lamp, normal opened contact of J and a red led are in series, and these two branch roads are connected on the AC transformation coil of a 6.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210324 CN2042152U (en) | 1988-03-19 | 1988-03-19 | Automatic steam-boiler protector with overpressure alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210324 CN2042152U (en) | 1988-03-19 | 1988-03-19 | Automatic steam-boiler protector with overpressure alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2042152U true CN2042152U (en) | 1989-08-02 |
Family
ID=4843826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88210324 Withdrawn CN2042152U (en) | 1988-03-19 | 1988-03-19 | Automatic steam-boiler protector with overpressure alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2042152U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930654A (en) * | 2010-07-13 | 2010-12-29 | 江苏盛虹化纤有限公司 | Pressure air alarming device of elasticizer |
| CN102998053A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Overload protection alarming pressure gauge |
| CN104407638A (en) * | 2014-11-12 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Pressure control system of solar hydrogen production system |
| CN106195977A (en) * | 2016-08-19 | 2016-12-07 | 石家庄吉瑞节能技术有限公司 | A kind of electric heating converting system of flow cavitation result electric current |
-
1988
- 1988-03-19 CN CN 88210324 patent/CN2042152U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930654A (en) * | 2010-07-13 | 2010-12-29 | 江苏盛虹化纤有限公司 | Pressure air alarming device of elasticizer |
| CN102998053A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Overload protection alarming pressure gauge |
| CN104407638A (en) * | 2014-11-12 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Pressure control system of solar hydrogen production system |
| CN106195977A (en) * | 2016-08-19 | 2016-12-07 | 石家庄吉瑞节能技术有限公司 | A kind of electric heating converting system of flow cavitation result electric current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |