CN210039063U - Trip alarm device of cold dryer - Google Patents
Trip alarm device of cold dryer Download PDFInfo
- Publication number
- CN210039063U CN210039063U CN201920999609.2U CN201920999609U CN210039063U CN 210039063 U CN210039063 U CN 210039063U CN 201920999609 U CN201920999609 U CN 201920999609U CN 210039063 U CN210039063 U CN 210039063U
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- power supply
- switch
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Abstract
The utility model provides a trip alarm device of cold machine of doing has solved the problem that the control personnel can't discover in time when the cold machine of doing takes place the tripping operation phenomenon. The technical scheme is as follows: the air switch with the double-circuit power supply comprises a switch and an alarm, wherein the switch is a double-circuit power supply air switch, a first circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of the cold air dryer, a second circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of an alternating current contactor, two ends of a normally closed contact of the alternating current contactor are respectively connected with a power supply N end and one end of an audible and visual alarm, and the other end of. Its simple structure can the effectual warning suggestion that sends of automatic synchronization when tripping operation phenomenon takes place, prevents that the steam in the compressed air from getting into precision equipment's cylinder, avoids the precision of equipment to go wrong or even trouble, reduces precision equipment's fault rate.
Description
Technical Field
The utility model relates to an electric alarm device, especially a cold machine tripping operation alarm device that does is applicable to and reports to the police to cold machine tripping operation phenomenon of doing.
Background
The cold dryer is a device for drying compressed air by adopting the working principle of temperature reduction and condensation. The heat exchanger mainly comprises a heat exchange system, a refrigerating system and an electric control system. When the temperature of a compressed air inlet is overhigh in summer, the ambient temperature is overhigh, the voltage fluctuation exceeds +/-10% and the like, the trip protection phenomenon can occur, an area using the compressed air after the trip is not found by people, so that the moisture in the compressed air can not be removed to form condensed water, the condensed water enters a cylinder of precision equipment (such as a chip mounter, a wave crest welder, a three-prevention coating machine and the like) along with the compressed air, the precision of the compact equipment is caused to have problems or even faults, and at present, no synchronous alarm device for the trip protection phenomenon exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a trip alarm device of cold machine of doing has solved the problem that the control personnel can't discover in time when the cold machine of doing takes place the tripping operation phenomenon. The automatic alarm device is simple in structure and can automatically synchronize and effectively send out alarm prompts when tripping occurs.
The utility model adopts the technical proposal that: this cold machine tripping alarm device that does includes switch ware and alarm, and the technical essential is: the switch is a double-circuit power supply air switch, a first circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of the cold air dryer, a second circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of the alternating current contactor, two ends of a normally closed contact of the alternating current contactor are respectively connected with a power supply N end and one end of the audible and visual alarm, and the other end of the audible and visual alarm is connected with a power supply L.
The inlet wire ends of a first path of control switch and a second path of control switch of the two-path power supply air switch are both connected with the power supply L end; the first path of control switch outlet end of the two-path power supply air switch is connected with a power supply interface at one end of the cold dryer, and a power supply interface at the other end of the cold dryer is connected with a power supply N end; and the outlet end of the second path of control switch of the two-path power supply air switch is connected with a power supply interface at one end of the alternating current contactor, and a power supply interface at the other end of the alternating current contactor is connected with a power supply N end.
The utility model has the advantages and positive effects that: because the utility model discloses select double-circuit power air switch, be the cold machine power supply of doing all the way, another way is the AC contactor power supply, realizes that cold machine and AC contactor open with the synchronous start-stop of AC contactor, and audible-visual annunciator is connected to AC contactor's normally closed contact. When the protection tripping of the cold dryer leads to equipment shutdown, the two ways are simultaneously powered off in an air-open mode, so that the AC contactor is powered off, the normally closed contact of the AC contactor is restored to a closed state, the audible and visual alarm is switched on to realize alarming, the control personnel are timely warned, water vapor in compressed air is prevented from entering the air cylinder of the precision equipment, the precision of the equipment is prevented from being out of order or even broken down, and the fault rate of the precision equipment is reduced. The automatic alarm device is simple in structure and can automatically synchronize and effectively send out alarm prompts when tripping occurs.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
The sequence numbers in the figures illustrate: the air conditioner comprises a cold dryer 1, a two-way power supply air switch 2, a first wire inlet end 2-1, a first wire outlet end 2-2, a second wire inlet end 2-3, a second wire outlet end 2-4, an alternating current contactor 3 and an audible and visual alarm 4.
Detailed Description
According to the detailed structure of fig. 1, the embodiment of the present invention is shown in fig. 1, a trip alarm device for a refrigeration dryer, which comprises a dual-circuit air switch 2, an ac contactor 3 and an audible and visual alarm 4, wherein the dual-circuit air switch is used as a switch device, the dual-circuit air switch is provided with a dual-circuit control switch having a first circuit control switch and a second circuit control switch, the first circuit control switch comprises a first incoming line terminal 2-1 and a first outgoing line terminal 2-2, and the second circuit control switch comprises a second incoming line terminal 2-3 and a second outgoing line terminal 2-4. The power supply is a power supply L end and a power supply N end, the first path of control switch is connected in series with a power supply circuit of the cold dryer 1, the second path of control switch of the two-path power supply air switch 2 is connected in series with a power supply circuit of the alternating current contactor 3, the two ends of a normally closed contact NC of the alternating current contactor are respectively connected with the power supply N end and one end of the audible and visual alarm, and the other end of the audible and visual alarm 4 is connected with the power supply L end. The concrete connection is as follows: a first incoming line end 2-1 of a first path control switch of the two-path power supply air switch and a second incoming line end 2-3 of a second path control switch are both connected with a power supply L end; a first outlet end 2-2 of the double-circuit power supply air switch is connected with a power supply interface at one end of the cold dryer 1, and a power supply interface at the other end of the cold dryer 1 is connected with a power supply N end; the second outlet end 2-4 of the two-way power supply air switch is connected with a power supply interface A1 at one end of the alternating current contactor, and a power supply interface A2 at the other end of the alternating current contactor is connected with a power supply N end.
The working principle is as follows: and a double-circuit power supply air switch is utilized, one path supplies power to the cold drying machine, the other path supplies power to the alternating current contactor, the cold drying machine and the alternating current contactor are synchronously started and stopped, and a normally closed contact of the alternating current contactor is connected with an audible and visual alarm. When the protection tripping of the cold drying machine causes the equipment to stop, the two paths are opened and powered off simultaneously, so that the alternating current contactor is powered off, the normally closed contact of the alternating current contactor is restored to a closed state, and the audible and visual alarm is switched on to realize alarming. When the protection tripping of the cold dryer, the water vapor in the compressed air is prevented from entering the air cylinder of the precision equipment in time, the precision of the equipment is prevented from being out of order or even broken down, and the failure rate of the precision equipment is reduced.
In conclusion, the purpose of the utility model is realized.
Claims (2)
1. The utility model provides a trip alarm device of cold dry machine, it includes switch and alarm, its characterized in that: the switch is a double-circuit power supply air switch, a first circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of the cold air dryer, a second circuit control switch of the double-circuit power supply air switch is connected in series with a power supply circuit of the alternating current contactor, two ends of a normally closed contact of the alternating current contactor are respectively connected with a power supply N end and one end of the audible and visual alarm, and the other end of the audible and visual alarm is connected with a power supply L.
2. The chiller dryer trip alarm device of claim 1, wherein: the inlet wire ends of a first path of control switch and a second path of control switch of the two-path power supply air switch are both connected with the power supply L end; the first path of control switch outlet end of the two-path power supply air switch is connected with a power supply interface at one end of the cold dryer, and a power supply interface at the other end of the cold dryer is connected with a power supply N end; and the outlet end of the second path of control switch of the two-path power supply air switch is connected with a power supply interface at one end of the alternating current contactor, and a power supply interface at the other end of the alternating current contactor is connected with a power supply N end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920999609.2U CN210039063U (en) | 2019-06-30 | 2019-06-30 | Trip alarm device of cold dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920999609.2U CN210039063U (en) | 2019-06-30 | 2019-06-30 | Trip alarm device of cold dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210039063U true CN210039063U (en) | 2020-02-07 |
Family
ID=69349075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920999609.2U Expired - Fee Related CN210039063U (en) | 2019-06-30 | 2019-06-30 | Trip alarm device of cold dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210039063U (en) |
-
2019
- 2019-06-30 CN CN201920999609.2U patent/CN210039063U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |