CN203746211U - Vacuum arc furnace closed tower circulating water shortage automatic alarm system - Google Patents
Vacuum arc furnace closed tower circulating water shortage automatic alarm system Download PDFInfo
- Publication number
- CN203746211U CN203746211U CN201320892596.1U CN201320892596U CN203746211U CN 203746211 U CN203746211 U CN 203746211U CN 201320892596 U CN201320892596 U CN 201320892596U CN 203746211 U CN203746211 U CN 203746211U
- Authority
- CN
- China
- Prior art keywords
- pressure gauge
- switch
- auxiliary reclay
- circulating water
- tower
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 230000005611 electricity Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000009172 bursting Effects 0.000 description 9
- 238000007710 freezing Methods 0.000 description 9
- 230000008014 freezing Effects 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a vacuum arc furnace closed tower circulating water shortage automatic alarm system. The vacuum arc furnace closed tower circulating water shortage automatic alarm system includes an air switch which is adopted as a switch for controlling a main power source, a switching power source, a button switch which is used for relieving alarm, an intermediate relay which is provided with a coil and a first normally opening contact, an electric contact pressure gauge which is arranged at a pipeline end of a closed tower, and an arm device; the input end of the switching power source is connected with the air switch; and the output end of the switching power source is connected in series with the button switch, the coil of the intermediate relay and a lower limiting position of the electric contact pressure gauge sequentially; and the electric contact pressure gauge is electrified and switched on when pipeline pressure drops to a certain value, so that the the coil of the intermediate relay can be energized. According to the vacuum arc furnace closed tower circulating water shortage automatic alarm system, the electric contact pressure gauge is arranged at the pipeline end of the closed tower, and therefore, once the pressure of the pipeline end drops to a certain value, the electric contact pressure gauge is electrified and switched on, and the coil of the intermediate relay can be energized, and then, the arm device is electrified and thereafter transmits a prompt that circulating water of the closed tower is abnormal, and therefore, risks of frost cracks of the closed tower can be greatly reduced.
Description
Technical field
The utility model belongs to alloy cast ingot melting, metallurgical industry field, is specifically related to a kind of vacuum arc furnace ignition and closes tower circulating water shortage automatic alarm system.
Background technology
It is cooling that vacuum consumable electrode arc furnace needs that its body of heater and melting power unit are carried out to water circulation during operation, heat need be replaced through the external cooling tower that closes, the cooling equipment that closes tower apparatus of all uses in this field, all exist and walk around many owing to closing copper pipe disk in tower, the problem that cannot carry out complete draining processing to it, makes to close copper pipe in tower and exists the risk of bursting by freezing in winter, once bursting by freezing appears in copper pipe, keep in repair just very difficult, so need to be taken precautions against bursting by freezing risk.
Carry out the circulation of 24 hours uninterrupted pressure flowing water to closing tower, the situation that can prevent copper pipe bursting by freezing in winter occurs, but some special statuss can be interrupted the circulation of flowing water, the such as unexpected stall of motor etc., and the artificial scene of 24 hours is on duty, waste again a large amount of manpowers.
Therefore, be necessary to provide a kind of vacuum arc furnace ignition to close tower circulating water shortage automatic alarm system, interrupt the circulation time of flowing water when some special statuss, send in time and close tower recirculated water abnormal prompting occurs, thereby reduce the risk of closing tower bursting by freezing in winter.
Summary of the invention
The purpose of this utility model is to provide a kind of vacuum arc furnace ignition and closes tower circulating water shortage automatic alarm system, has effectively solved in the time that forced circulation water circulation is antifreeze, because fortuitous event flowing water stops that Nobody Knows and cause the problem of pipeline bursting by freezing.
According to an aspect of the present utility model, provide a kind of vacuum arc furnace ignition to close tower circulating water shortage automatic alarm system, comprising: air switch, it is as the switch of controlling general supply; Switching Power Supply, input end is connected with air switch, and output terminal is connected successively with the lower limit of pushbutton switch, auxiliary reclay coil, electro connecting pressure gauge; Pushbutton switch, for removing warning; Auxiliary reclay, is provided with auxiliary reclay coil and first and often makes war, and wherein the first normal battle connected described air switch with warning device; Electro connecting pressure gauge, is arranged on the pipeline end that closes tower, closed for getting an electric shock in the time that line pressure drops to certain value, by auxiliary reclay coil electricity; Warning device, closes tower line pressure decline prompting for sending.
Wherein, in above-mentioned utility model, described auxiliary reclay is also provided with second and often makes war, and the described second normal battle is in parallel with described electro connecting pressure gauge.
Wherein, in above-mentioned utility model, the pressure limit of described electro connecting pressure gauge is 0-1MPa.
Wherein, in above-mentioned utility model, described pushbutton switch is self-lock switch.
Wherein, in above-mentioned utility model, described warning device is or both combinations arbitrarily, or three's combination.
Wherein, in above-mentioned utility model, described Switching Power Supply is the power supply of alternating current 220V input direct-current 24V output, and the operating voltage of described auxiliary reclay is 24V direct current.
Close tower circulating water shortage automatic alarm system according to a kind of vacuum arc furnace ignition of the present utility model, by electro connecting pressure gauge being set at the pipeline end that closes tower, pressure decreased once pipeline end gets an electric shock closed to certain value, by the coil electricity of auxiliary reclay, and then warning device obtains to send after electric and close tower recirculated water abnormal prompting occurs, greatly reduce the risk of closing tower bursting by freezing in winter.The utlity model has the advantage practical, reliability is strong, need not be on duty at the scene, greatly save manpower, once occur that the lacks of water such as ebullator stops lack pressure problem, warning device can sound automatically, reminds staff to close tower recirculated water and occurs abnormal; In addition, the utility model structure is very simple, and material and device expense that transformation needs are low, and circuit design is simple and reliable.
Brief description of the drawings
Fig. 1 has shown that the vacuum arc furnace ignition of the utility model embodiment closes the structural representation of tower circulating water shortage automatic alarm system;
Fig. 2 has shown that the vacuum arc furnace ignition of the utility model embodiment closes the circuit diagram of tower circulating water shortage automatic alarm system.
Embodiment
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below in conjunction with embodiment and with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present invention.
Fig. 1 has shown that the vacuum arc furnace ignition of the utility model embodiment closes the structural representation of tower circulating water shortage automatic alarm system; Fig. 2 has shown that the vacuum arc furnace ignition of the utility model embodiment closes the circuit diagram of tower circulating water shortage automatic alarm system.
As depicted in figs. 1 and 2, the vacuum arc furnace ignition of the utility model embodiment closes tower circulating water shortage automatic alarm system, comprising: air switch, Switching Power Supply, pushbutton switch, auxiliary reclay, electro connecting pressure gauge and warning device.
Air switch, it,, as the switch of controlling general supply, is connected in phase line.In the utility model preferred embodiment, the air switch of selecting: model is that C65N C4, operating voltage are that 220V, simply connected 4A sky are opened.
Switching Power Supply, input end is connected with air switch, output terminal is connected successively with the lower limit of pushbutton switch, auxiliary reclay coil, electro connecting pressure gauge, and the coil of general supply, air switch, Switching Power Supply, pushbutton switch, auxiliary reclay and electro connecting pressure gauge form a circuit loop.Switching Power Supply is the power supply of alternating current 220V input direct-current 24V output.
Pushbutton switch, for removing warning, in the time that warning device gives the alarm, staff hears the news and comes, and must manually turn off pushbutton switch and just can make warning device stop giving the alarm.In the utility model preferred embodiment, what pushbutton switch was selected is self-lock switch, be under normality, to be normally closed dotted state, press after also self-locking, be always normally open, after again pressing, recoiling to normality is normally closed dotted state---this switch is used for stably removing the second normal self-sustaining battle state of auxiliary reclay, and electric bell under service mode can not be sounded.
Auxiliary reclay, is provided with auxiliary reclay coil and first and often makes war, and wherein the first normal battle connected air switch with warning device.Auxiliary reclay coil is not switched under normal conditions, only has when after electro connecting pressure gauge closure, and auxiliary reclay coil electricity also triggers the first normal closure of making war, and warning device is communicated with air switch, makes warning device send warning reminding.In the utility model preferred embodiment, the operating voltage of auxiliary reclay is 24V direct current, and being also provided with second often makes war, the second normal battle is in parallel with electro connecting pressure gauge, when after electro connecting pressure gauge closure, auxiliary reclay coil electricity also can trigger the second normal closure of making war, the second normal closed auxiliary reclay that makes of making war is connected with the coil of self normal battle, thereby own holding coil is charged all the time---under this self-sustaining state, even if once occurred that the pressure decreased of any moment property recovered again normal, electric bell all rings all the time, impel operator on duty to go to and check and manually press locking press button releasing warning, thereby avoid the time of fire alarming that pressure drop causes in short-term too short.
Electro connecting pressure gauge, be arranged on the pipeline end that closes tower, specifically, electro connecting pressure gauge is arranged on the pipeline end of the overall pipeline inner pressure of suitable reflection, and its low pressure limit is adjusted to correct position, and be reduced to critical point once close the line pressure of tower, will be by auxiliary reclay coil electricity, by auxiliary reclay coil trigger alarm device, to remind staff to process rapidly abnormal conditions.In addition, if it is independent respectively to close pure water, the soft water of circulation in tower, need electro connecting pressure gauge is installed respectively, if it is not independent to close pure water, the soft water of circulation in tower, only with installing one, its pressure limit will be selected according to the hydraulic pressure of the normal operation of equipment.In the utility model preferred embodiment, the installation quantity of electro connecting pressure gauge is one, and the pressure limit of electro connecting pressure gauge is 0-1MPa.
Warning device, closes tower line pressure decline prompting for sending, thereby reduces the risk of closing tower bursting by freezing in winter.In the utility model preferred embodiment, warning device is common electric bell or buzzing alarming device, and operating voltage is alternating current 220V, and its first normal battle and air switch, general supply by auxiliary reclay forms a circuit loop.
Principle of work: electro connecting pressure gauge is arranged on the pipeline end of the overall pipeline inner pressure of suitable reflection, low pressure limit is adjusted to correct position, once pressure decreased is to this critical point, electro connecting pressure gauge gets an electric shock closed, auxiliary reclay coil is charged, its normal adhesive battle, self-insurance is carried out in the second normal adhesive battle, it is electric that the first normal adhesive battle obtains warning device, warning device sends and closes tower line pressure decline prompting, after hearing alarm, attending personnel comes to check, first manually turn off pushbutton switch and remove warning, then process rapidly and close the fault that tower occurs, effectively ensure to close the uninterrupted of the interior pressure of tower flowing water.
As mentioned above, close tower circulating water shortage automatic alarm system according to a kind of vacuum arc furnace ignition of the present utility model, by electro connecting pressure gauge being set at the pipeline end that closes tower, pressure decreased once pipeline end gets an electric shock closed to certain value, by the coil electricity of auxiliary reclay, and then warning device obtains to send after electric and close tower recirculated water abnormal prompting occurs, greatly reduce the risk of closing tower bursting by freezing in winter.The utlity model has the advantage practical, reliability is strong, need not be on duty at the scene, greatly save manpower, once occur that the lacks of water such as ebullator stops lack pressure problem, warning device can sound automatically, reminds staff to close tower recirculated water and occurs abnormal; In addition, the utility model structure is very simple, and material and device expense that transformation needs are low, and circuit design is simple and reliable.
Should be understood that, above-mentioned embodiment of the present utility model is only for exemplary illustration or explain principle of the present utility model, and do not form restriction of the present utility model.Therefore any amendment of, making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model in the situation that not departing from spirit and scope of the present utility model.In addition, the utility model claims are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (6)
1. vacuum arc furnace ignition closes a tower circulating water shortage automatic alarm system, it is characterized in that, comprising:
Air switch, it is as the switch of controlling general supply;
Switching Power Supply, input end is connected with air switch, and output terminal is connected successively with the lower limit of pushbutton switch, auxiliary reclay coil, electro connecting pressure gauge;
Pushbutton switch, for removing warning;
Auxiliary reclay, is provided with auxiliary reclay coil and first and often makes war, and wherein the first normal battle connected described air switch with warning device;
Electro connecting pressure gauge, is arranged on the pipeline end that closes tower, closed for getting an electric shock in the time that line pressure drops to certain value, by auxiliary reclay coil electricity; And
Warning device, closes tower line pressure decline prompting for sending.
2. system according to claim 1, is characterized in that, described auxiliary reclay is also provided with second and often makes war, and the described second normal battle is in parallel with described electro connecting pressure gauge.
3. system according to claim 2, is characterized in that, the pressure limit of described electro connecting pressure gauge is 0-1MPa.
4. system according to claim 2, is characterized in that, described pushbutton switch is self-lock switch.
5. system according to claim 2, is characterized in that, described warning device is common electric bell or buzzing alarming device or light, or both combinations arbitrarily, or three's combination.
6. according to the system described in any one in claim 1 to 5, it is characterized in that, described Switching Power Supply is the power supply of alternating current 220V input direct-current 24V output, and the operating voltage of described auxiliary reclay is 24V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892596.1U CN203746211U (en) | 2013-12-31 | 2013-12-31 | Vacuum arc furnace closed tower circulating water shortage automatic alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892596.1U CN203746211U (en) | 2013-12-31 | 2013-12-31 | Vacuum arc furnace closed tower circulating water shortage automatic alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746211U true CN203746211U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892596.1U Expired - Lifetime CN203746211U (en) | 2013-12-31 | 2013-12-31 | Vacuum arc furnace closed tower circulating water shortage automatic alarm system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203746211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017930A (en) * | 2019-03-14 | 2019-07-16 | 西北工业大学 | A kind of scaling method of millimicro ox magnitude thrust-measuring device |
-
2013
- 2013-12-31 CN CN201320892596.1U patent/CN203746211U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017930A (en) * | 2019-03-14 | 2019-07-16 | 西北工业大学 | A kind of scaling method of millimicro ox magnitude thrust-measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
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| CX01 | Expiry of patent term |