CN201073584Y - Security control device of resurgent gases heating of adsorption type drier - Google Patents
Security control device of resurgent gases heating of adsorption type drier Download PDFInfo
- Publication number
- CN201073584Y CN201073584Y CNU2007201126498U CN200720112649U CN201073584Y CN 201073584 Y CN201073584 Y CN 201073584Y CN U2007201126498 U CNU2007201126498 U CN U2007201126498U CN 200720112649 U CN200720112649 U CN 200720112649U CN 201073584 Y CN201073584 Y CN 201073584Y
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- China
- Prior art keywords
- chip microcomputer
- air switch
- control
- absorption type
- gas heating
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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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- Drying Of Gases (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to an adsorption type drier, aiming at providing a safety control device for regenerated gas heating of the adsorption type drier. The safety control device comprises a power supply, an electric heater, a single-chip microcomputer, an operational amplifier, an air switch, and a photocoupler; wherein the single-chip microcomputer is connected with the input of the operational amplifier through the photocoupler; the output of the operational amplifier is connected with a tripping device, which is also connected with the air switch; the power supply, the air switch, a solid relay and the electric heater are electrically connected with each other in sequence; the single-chip microcomputer is used for controlling the tripping device; the operational amplifier is used for controlling the signal; the tripping device is used for controlling the air switch; and the solid relay is used for controlling the electric heater. As for the utility model, when a failure is occurred in the regenerated gas heating process or the device is manually switched to the heatless operation status, the air switch can automatically trip to cut off the power supply of the heater, and the drier automatically switches to the no-hot working mode for operation in order to continuously provide gas with high dryness for the load so as to ensure the safety of the equipment.
Description
Technical field
The utility model relates to the absorption type dryer field, in particular, relates to a kind of safety control of absorption type dryer regeneration gas heating.
Background technology
In recent years, absorption type dryer (particularly electronics industry, medical industry, chemical industry and food service industry etc.) in many industries has obtained extensive use, along with the application of the raising day by day of industrial standard and new technology, new technology, new material, the high-performance of absorption type dryer, low-power consumption and reliability, convenience more and more are subjected to industry and pay attention to.Existing absorption type dryer adopts Double-Tower Structure and timing cycle control method mostly, and the technological process of every tower circulation experience adsorption-regeneration-pressurising is for the user provides dry gas continuously.This traditional production and control method owing to lack the monitoring of production process real-time and effective, can't make absorption type dryer operate in optimum Working, can not guarantee that finished product makings amount is stable, also can cause the waste of the energy.
In the pressure change adsorption type drier, adopt part finished product gas method of reproduction usually, promptly heat by electric heater with a small amount of drier finished product gas, deliver in the adsorption dry tower, in the tower behind the adsorbent reactivation regeneration gas emptying.In this process, the regeneration gas temperature directly influences the adsorbent reactivation effect and recovers quality, and it is abundant that temperature is crossed low adsorbent reactivation degree, and temperature is too high can to shorten the adsorbent life-span again, even burns out inefficacy.Therefore, the security control of regeneration gas heating is the important step that guarantees absorption type dryer safety, reliability service.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of safety control of absorption type dryer regeneration gas heating is provided.
In order to overcome the above problems, the utility model is to be achieved through the following technical solutions.
A kind of safety control of absorption type dryer regeneration gas heating, comprise power supply, electric heater, single-chip microcomputer, operational amplifier and air switch, also comprise photoelectrical coupler, described single-chip microcomputer links to each other with the input of operational amplifier by photoelectrical coupler, the output of described operational amplifier is connected with trip gear, and described trip gear links to each other with air switch; Described power supply links to each other with solid-state relay by air switch; Described solid-state relay links to each other with electric heater;
Described single-chip microcomputer is used to control the action of trip gear;
Described operational amplifier is used to amplify the control signal and the output of single-chip microcomputer;
Described trip gear is used to control the switching of air switch;
Described solid-state relay is used to control electric heater work.
As a kind of improvement, described solid-state relay has three.
As a kind of improvement, also comprise solid-state relay control and drive circuit, described solid-state relay all links to each other with air switch with drive circuit by solid-state relay control.
As a kind of improvement, also comprise temperature transducer, described temperature transducer links to each other with single-chip microcomputer, is used to monitor the temperature of electric heater, and temperature signal is fed back to single-chip microcomputer.
As a kind of improvement, also comprise display unit, described display unit links to each other with single-chip microcomputer.
As a kind of improvement, also comprise guidance panel, described guidance panel links to each other with single-chip microcomputer, is used to import data and programming.
As a kind of improvement, described display unit is a LCD display.
Compared with prior art, the beneficial effects of the utility model are:
Adopt the utility model, when following fault occurring: (1) is when the short circuit of heating temperature transducer, open circuit or inefficacy; (2) during the short circuit of heater executing agency; (3) heater is out of control, when heating-up temperature surpasses 200 ℃; When (4) system moves through manually switching to no hot absorption type dryer.The heater power source sky is held all and can be threaded off automatically, cuts off the power supply of heater, and system transfers no hot absorption type dryer working method operation automatically to, still can be load and continues to provide dry source of the gas.Simultaneously, not during power or power-down, the utility model also can cut off heater power source, guarantees device security, and is perfectly safe in the absorption type dryer control system.
Description of drawings
Fig. 1 is the utility model structural principle schematic diagram.
Among the figure, 1 single-chip microcomputer, 2 trip gears, 3 photoelectrical couplers, 4 air switches, 5 power supplys, 6 solid-state relays, 7 operational amplifiers, 8 temperature transducers, 9 electric heaters, 10 display unit, 11 guidance panels.
The specific embodiment
In conjunction with the accompanying drawings, below the utility model is elaborated.
The safety control of a kind of absorption type dryer regeneration gas heating in this specific embodiment, comprise power supply, single-chip microcomputer, operational amplifier and air switch, also comprise photoelectrical coupler, single-chip microcomputer links to each other with the input of operational amplifier by photoelectrical coupler, the output of operational amplifier is connected with trip gear, and trip gear links to each other with air switch; Power supply links to each other with solid-state relay by air switch, and solid-state relay links to each other with electric heater;
Single-chip microcomputer is used to control the action of trip gear; Operational amplifier is used to amplify the control signal and the output of single-chip microcomputer; Trip gear is used to control the switching of air switch; Solid-state relay is used to control the work of electric heater.
Solid-state relay has three, all links to each other with air switch with drive circuit by solid-state relay control.
This device also comprises display unit, guidance panel and temperature transducer, and this display unit is a LCD display, and LCD display links to each other with single-chip microcomputer; Guidance panel links to each other with single-chip microcomputer, is used to import data and programming; Temperature transducer links to each other with single-chip microcomputer, is used to monitor the temperature of electric heater, and temperature signal is fed back to single-chip microcomputer.
In this specific embodiment, single-chip microcomputer is selected the single-chip microcomputer STC89C58RD+ of new generation of compatible 8051 kernels for use, have high speed, high reliability, super low-power consumption, wide voltage, superpower antijamming capability and reduce characteristics significantly outside electromagnetic radiation (EMI), in addition, all the other characteristics of this single-chip microcomputer are as follows:
(1) has the ram in slice of 1280 bytes and the Flash program storage of 32K byte, in this device, need not extended menory.
(2) 16K byte E in the sheet
2PROM supports IAP (able to programme in application) and ISP (at system programmable).Therefore, this device configuration parameter and question blank etc. can directly be deposited in the Flash in the sheet, and do not need to extend out the non-volatile memories body.
(3) Feng Fu timing resource has 3 hardware timers.
(4) 8 external interrupt power supplys.
(5) has 32/36 general I/O mouth.
(6) provide I
2C bus control module and a UART mouth.
(7) has hardware watchdog (WDT).
(8) chip integration becomes the special-purpose reset circuit of MAX810.
Solid-state relay (SSR) is a kind of contactless electronic beam switch, and speed is fast, the life-span is long, and its function is the work of control electric heater, and the voltage limit that is added on the solid-state relay is 0～220V.
Regeneration gas heating regulation and control are the key components in the absorption type dryer, also usually are the highest parts of fault rate.In order to guarantee the absorption type dryer safe operation, except conventional measures such as heating overtemperature alarm, the utility model has designed the safety control of regeneration gas heating especially.The heater that is absorption type dryer is independently-powered, and installs trip gear additional on the air switch of heater power source, and trip gear is directly controlled by single-chip microcomputer.
When following arbitrary fault appears in temperature transducer or heating execution unit, the air switch of heater power source all can be threaded off automatically, cut off the power supply of heater, this device transfers no hot absorption type dryer working method operation automatically to, still can be load and continues to provide high and dry source of the gas.
(1) temperature transducer short circuit, open circuit or when losing efficacy;
(2) during the short circuit of heater executing agency;
(3) heater is out of control, when heating-up temperature surpasses 200 ℃;
When (4) system blots the machine operation through manually switching to no heat.
Simultaneously, not during power or power-down, automatic release device also can cut off heater power source, guarantees device security, and is perfectly safe in the absorption type dryer control system.
At last, it should be noted that the above specific embodiment of the utility model of enumerating.Obviously, the utility model is not limited to above embodiment, can also be by a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (7)
1. the safety control of absorption type dryer regeneration gas heating, comprise power supply, electric heater, single-chip microcomputer, operational amplifier and air switch, it is characterized in that, also comprise photoelectrical coupler, described single-chip microcomputer links to each other with the input of operational amplifier by photoelectrical coupler, the output of described operational amplifier is connected with trip gear, and described trip gear and air switch are electrically connected; Described power supply is electrically connected by air switch and solid-state relay, and described solid-state relay and electric heater are electrically connected;
Described single-chip microcomputer is used to control the action of trip gear;
Described operational amplifier is used to amplify the control signal and the output of single-chip microcomputer;
Described trip gear is used to control the switching of air switch;
Described solid-state relay is used to control electric heater work.
2. the safety control of absorption type dryer regeneration gas heating according to claim 1 is characterized in that described solid-state relay has three.
3. the safety control of absorption type dryer regeneration gas heating according to claim 1 and 2, it is characterized in that, also comprise solid-state relay control and drive circuit, described solid-state relay all links to each other with air switch with drive circuit by solid-state relay control.
4. the safety control of absorption type dryer regeneration gas heating according to claim 1, it is characterized in that also comprise temperature transducer, described temperature transducer links to each other with single-chip microcomputer, be used to monitor the temperature of electric heater, and temperature signal is fed back to single-chip microcomputer.
5. the safety control of absorption type dryer regeneration gas heating according to claim 1 is characterized in that also comprise display unit, described display unit links to each other with single-chip microcomputer.
6. the safety control of absorption type dryer regeneration gas heating according to claim 1 is characterized in that also comprise guidance panel, described guidance panel links to each other with single-chip microcomputer, is used to import data and programming.
7. the safety control of absorption type dryer regeneration gas heating according to claim 5 is characterized in that described display unit is a LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201126498U CN201073584Y (en) | 2007-07-26 | 2007-07-26 | Security control device of resurgent gases heating of adsorption type drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201126498U CN201073584Y (en) | 2007-07-26 | 2007-07-26 | Security control device of resurgent gases heating of adsorption type drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201073584Y true CN201073584Y (en) | 2008-06-18 |
Family
ID=39518847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201126498U Expired - Fee Related CN201073584Y (en) | 2007-07-26 | 2007-07-26 | Security control device of resurgent gases heating of adsorption type drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201073584Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553400A (en) * | 2010-10-27 | 2012-07-11 | 曼＋胡默尔普罗特克有限责任公司 | Device for drying fluid and method for operating same |
| CN108432340A (en) * | 2015-07-14 | 2018-08-21 | Vts有限公司 | Heater control system |
-
2007
- 2007-07-26 CN CNU2007201126498U patent/CN201073584Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553400A (en) * | 2010-10-27 | 2012-07-11 | 曼＋胡默尔普罗特克有限责任公司 | Device for drying fluid and method for operating same |
| CN108432340A (en) * | 2015-07-14 | 2018-08-21 | Vts有限公司 | Heater control system |
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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: 20080618 Termination date: 20130726 |