CN113113901A - Isolated safety barrier - Google Patents
Isolated safety barrier Download PDFInfo
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- CN113113901A CN113113901A CN202110409932.1A CN202110409932A CN113113901A CN 113113901 A CN113113901 A CN 113113901A CN 202110409932 A CN202110409932 A CN 202110409932A CN 113113901 A CN113113901 A CN 113113901A
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- safety barrier
- loop
- isolated
- microprocessor
- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
Abstract
The invention provides an isolated safety barrier, which comprises a safety barrier body, a power supply part, a functional loop part and a control part, wherein the functional loop part is arranged inside the safety barrier body and at least comprises two groups of loop units with different functions and capable of working independently; the control part is used for switching connection and disconnection between different loop units and the interface part; the multifunctional isolation safety barrier is integrated in the same device, and a specific functional loop can be controlled to work, so that signal self-adaption can be realized, the multifunctional isolation safety barrier can be used for various signal types, the functional diversity of the same safety barrier is increased, and the operation time is saved.
Description
Technical Field
The invention relates to the technical field of safety barriers, in particular to an isolated safety barrier.
Background
The safety barrier, also known as a correlation device, is an important component of an intrinsically safe circuit system, is connected between an intrinsically safe circuit and a non-intrinsically safe circuit, and is structured such that the non-intrinsically safe circuit cannot adversely affect the intrinsically safe circuit.
The prior safety barrier mainly comprises a Zener type safety barrier and an isolated type safety barrier, but the comprehensive performance of the isolated type safety barrier is obviously higher than that of the Zener type safety barrier, the isolated type safety barrier can not only prevent dangerous energy from entering a dangerous site from an intrinsic safety circuit terminal, improve the explosion-proof performance of the intrinsic safety circuit of a system, but also increase the anti-interference capability of the system, and greatly improve the reliability of the operation of the system.
Disclosure of Invention
The invention aims to provide an isolated safety barrier aiming at the defects in the prior art, which integrates various functional isolated safety barriers into the same equipment and can control a specific functional loop to work, thereby realizing signal self-adaptation, being applicable to various signal types, increasing the functional diversity of the same safety barrier and saving the operation time.
In order to solve the technical problems, the invention adopts the following technical scheme:
an isolated safety barrier, its characterized in that: the safety barrier comprises a safety barrier body, a power supply part, a functional loop part and a control part, wherein the functional loop part is arranged inside the safety barrier body and at least comprises two groups of loop units with different functions and capable of working independently; the control part is used for switching connection and disconnection between different loop units and the interface part; the safety barrier body is internally integrated with a plurality of loop units which can be superposed or independently operated, each loop unit can carry out safety isolation processing on input and output of a signal, a user utilizes the control part to select and switch the loop units of the operation according to the use requirement, the selected loop units are connected with the interface part on the safety barrier body to form a complete loop, and the same equipment has diversity.
Optionally, the power supply part is arranged inside the safety barrier body, and the power supply part is used for supporting the functional loop part to work; because the power supply part directly supplies work of each loop unit, and the plurality of loop units are independently connected to the power supply part, if the power supply part is arranged outside the safety barrier body, wiring disorder is inevitably caused, so that the wiring distance can be shortened by arranging the power supply part inside the safety barrier body, the engineering quantity is simplified, human errors are reduced, and the engineering cost is reduced.
Optionally, the safety barrier body comprises an outer shell and a base, and the outer shell is fixedly mounted above the base; the safety barrier body below sets up the base, and accessible multicore plug and cable are direct to be connected with partial DCS IO fastener on the base, have saved DCS terminal board and traditional and the point connecting wire by safety barrier to terminal board to can save rack space, simplify the engineering volume.
Optionally, the outside of the inlet is connected with the equipment in the danger area, and the outside of the outlet is connected with the equipment in the safety area.
Optionally, the inlet end is connected with the inlet through a first circuit board, the outlet end is connected with the outlet through a second circuit board, and the inlet end and the outlet end corresponding to each loop unit are provided with communication identification marks.
Optionally, the control part includes a programmer, a program memory and a microprocessor, a user sends an instruction through the programmer, the microprocessor calls a corresponding program from the program memory according to the instruction of the programmer and operates the program, and the microprocessor is used for controlling different loop units to be respectively connected with or disconnected from the interface part.
Optionally, the programmer includes at least one group of programmable logic unit bodies, an application program and a communication controller, which are set at the handheld device end, and a user performs an editing operation on the programmable logic unit bodies through the application program; the programmable logic unit body is in communication connection with the communication controller, and the communication controller can send instructions of the programmable logic unit body to the microprocessor; the identification module is in communication connection with the microprocessor, identifies the corresponding inlet end and outlet end according to the instruction of the microprocessor, and positions and identifies the inlet end and the outlet end through the communication identification mark.
Optionally, the loop unit is an analog output safety barrier, the analog output safety barrier includes a conversion module, the conversion module converts a voltage signal into a direct current voltage, and the analog output safety barrier receives a voltage or current signal of the safety area, converts the voltage or current signal into a voltage or current signal designated by a user through isolation, and outputs the voltage or current signal to the danger area; the analog output safety grid has strong anti-interference capability and small volume and modular design, and is more favorable for integrated design.
Optionally, the loop unit is a switching value input safety barrier, and the switching value input safety barrier receives a dry contact signal of the hazardous area, converts the dry contact signal into a switching value signal designated by a user through isolation, and outputs the switching value signal to the hazardous area; the switching value input safety barrier generally controls the output of relays of two safety zones through proximity switches or switches in the two danger zones, after selection, line fault detection equipment can give an indication according to the open circuit or short circuit state of a detected field line, the output is realized through relay contacts, and the safety barrier has a line fault detection function and can perform reverse selection.
Optionally, the loop unit is a temperature signal input safety barrier, and the temperature signal input safety barrier receives signals of a thermocouple, a millivolt, a potentiometer and a thermal resistor in the dangerous area, converts the signals into independent and linear signals of the safety area, and outputs the signals.
Based on the above, the invention provides an isolated safety barrier, which integrates multiple functional isolated safety barriers into the same device, and can control a specific functional loop to work, thereby realizing signal self-adaptation, being applicable to multiple signal types, increasing the functional diversity of the same safety barrier, and saving the operation time.
Drawings
Fig. 1 is a schematic structural diagram of an isolated safety barrier according to an embodiment of the present invention.
1-a safety barrier body; 2-a power supply section; 3-a functional loop part; 5-a loop unit; 6-inlet end; 7-an outlet end; 8-an access port; 9-an output port; 10-an outer shell; 11-a base; 12-a first circuit board; 13-second circuit board.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The technical features of the present invention may be combined with each other without conflict.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
As shown in fig. 1, an isolated safety barrier according to the present invention includes a safety barrier body 1, a power supply portion 2, a functional circuit portion 3 and a control portion, wherein the functional circuit portion 3 is disposed inside the safety barrier body 1, the functional circuit portion 3 at least includes two groups of circuit units 5 having different functions and capable of working independently, each circuit unit 5 includes an inlet end 6 and an outlet end 7, an interface portion is disposed on the safety barrier body 1, the interface portion includes an inlet 8 and an outlet 9, the inlet end 6 is connected to an inner side of the inlet 8, and the outlet end 7 is connected to an inner side of the outlet 9; the control part is used for switching connection and disconnection between different loop units 5 and the interface part; the safety barrier body 1 is internally integrated with a plurality of loop units 5 which can be superposed or independently operated, each loop unit 5 can carry out safety isolation processing on input and output of a signal, a user utilizes a control part to select and switch the loop units 5 which operate according to use requirements, the selected loop units 5 are connected with an interface part on the safety barrier body 1 to form a complete loop, and the same device has diversity.
In some embodiments, the power supply part 2 is arranged inside the safety barrier body 1, and the power supply part 2 is used for supporting the functional loop part 3 to work; because the power supply part 2 directly supplies work of each loop unit 5, and the plurality of loop units 5 are independently connected to the power supply part 2, if the power supply part 2 is arranged outside the safety barrier body 1, the wiring disorder is inevitably caused, so that the wiring distance can be shortened by arranging the power supply part 2 in the safety barrier body 1, the engineering quantity is simplified, the human error is reduced, and the engineering cost is reduced.
In some embodiments, the safety barrier body 1 comprises an outer housing 10 and a base 11, the outer housing 10 being fixedly mounted above the base 11; the base 11 is arranged below the safety fence body 1, the base 11 can be directly connected with part of DCS I/O clamping pieces through a multi-core plug and a cable, a DC S terminal board and a traditional point-point connecting line from the safety fence to the terminal board are omitted, the space of a cabinet can be saved, and the engineering quantity is simplified.
In some embodiments, the outside of the access opening 8 is connected to equipment of the hazard zone and the outside of the output opening 9 is connected to equipment of the safety zone.
In some embodiments, the inlet end 6 is connected to the inlet 8 through a first circuit board 12, the outlet end 7 is connected to the outlet 9 through a second circuit board 13, and the inlet end 6 and the outlet end 7 corresponding to each loop unit 5 are provided with communication identification marks.
In some embodiments, the control portion includes a programmer, a program memory, and a microprocessor, the user sends an instruction through the programmer, the microprocessor calls a corresponding program from the program memory according to the instruction of the programmer and operates the program, and the microprocessor is used for controlling the different loop units 5 to be respectively connected with or disconnected from the interface portion.
In some embodiments, the programmer comprises at least one group of programmable logic unit bodies, an application program arranged at the handheld device end and a communication controller, and a user carries out editing operation on the programmable logic unit bodies through the application program; the programmable logic unit body is in communication connection with the communication controller, and the communication controller can send instructions of the programmable logic unit body to the microprocessor; the intelligent household garbage bin further comprises an identification module, the identification module is in communication connection with the microprocessor, the identification module identifies the corresponding inlet end 6 and the corresponding outlet end 7 according to an instruction of the microprocessor, and the identification module carries out positioning identification on the inlet end 6 and the outlet end 7 through communication identification marks.
In some embodiments, the loop unit 5 is an analog output safety barrier, the analog output safety barrier includes a conversion module, the conversion module converts a voltage signal into a direct current voltage, and the analog output safety barrier receives a voltage or current signal of the safety area, converts the voltage or current signal into a voltage or current signal designated by a user through isolation, and outputs the voltage or current signal to the danger area; the analog output safety grid has strong anti-interference capability and small volume and modular design, and is more favorable for integrated design.
In some embodiments, the loop unit 5 is a switching value input safety barrier, which receives a dry contact signal of the danger area, converts the dry contact signal into a switching value signal designated by a user through isolation, and outputs the switching value signal to the safety area; the switching value input safety barrier generally controls the output of relays of two safety zones through proximity switches or switches in the two danger zones, after selection, line fault detection equipment can give an indication according to the open circuit or short circuit state of a detected field line, the output is realized through relay contacts, and the safety barrier has a line fault detection function and can perform reverse selection.
In some embodiments, the loop unit 5 is a temperature signal input safety barrier, which receives signals of a thermocouple, a millivolt, a potentiometer and a thermal resistor of the danger zone, converts the signals into independent and linear signals of the safety zone, and outputs the signals.
Based on the above, the invention provides an isolated safety barrier, which integrates multiple functional isolated safety barriers into the same device, and can control a specific functional loop to work, thereby realizing signal self-adaptation, being applicable to multiple signal types, increasing the functional diversity of the same safety barrier, and saving the operation time.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. An isolated safety barrier, its characterized in that: the safety barrier comprises a safety barrier body, a power supply part, a functional loop part and a control part, wherein the functional loop part is arranged inside the safety barrier body, the functional loop part at least comprises two groups of loop units with different functions and capable of working independently, each loop unit comprises an inlet end and an outlet end, an interface part is arranged on the safety barrier body, the interface part comprises an inlet and an outlet, the inlet end is connected with the inner side of the inlet, and the outlet end is connected with the inner side of the outlet;
the control part is used for switching connection and disconnection between different loop units and the interface part.
2. An isolated safety barrier as claimed in claim 1, wherein: the power supply part is arranged inside the safety barrier body and is used for supporting the functional loop part to work.
3. An isolated safety barrier as claimed in claim 1, wherein: the safety barrier body comprises an outer shell and a base, wherein the outer shell is fixedly installed above the base.
4. An isolated safety barrier as claimed in claim 1, wherein: the outer side of the access port is connected with equipment in a dangerous area, and the outer side of the output port is connected with equipment in a safe area.
5. An isolated safety barrier as claimed in claim 1, wherein: the inlet end is connected with the inlet through a first circuit board, the outlet end is connected with the outlet through a second circuit board, and each loop unit corresponds to the inlet end and the outlet end, which are provided with communication identification marks.
6. An isolated safety barrier according to claim 5, wherein: the control part comprises a programmer, a program memory and a microprocessor, a user sends an instruction through the programmer, the microprocessor calls a corresponding program from the program memory according to the instruction of the programmer and operates the program, and the microprocessor is used for controlling different loop units to be connected with or disconnected from the interface part respectively.
7. An isolated safety barrier according to claim 6, wherein: the programmer comprises at least one group of programmable logic unit bodies, an application program and a communication controller, wherein the application program and the communication controller are arranged at a handheld device end, and a user carries out editing operation on the programmable logic unit bodies through the application program; the programmable logic unit body is in communication connection with the communication controller, and the communication controller can send instructions of the programmable logic unit body to the microprocessor;
the identification module is in communication connection with the microprocessor, identifies the corresponding inlet end and the corresponding outlet end according to an instruction of the microprocessor, and positions and identifies the inlet end and the outlet end through the communication identification mark.
8. An isolated safety barrier as claimed in claim 1, wherein: the loop unit is an analog quantity output safety barrier, the analog quantity output safety barrier comprises a conversion module, the conversion module converts a voltage signal into direct current voltage, and the analog quantity output safety barrier receives a voltage or current signal of a safety area, converts the voltage or current signal into a voltage or current signal designated by a user through isolation and outputs the voltage or current signal to the danger area.
9. An isolated safety barrier as claimed in claim 1, wherein: the loop unit is a switching value input safety barrier which receives a dry contact signal of the dangerous area, converts the dry contact signal into a switching value signal designated by a user through isolation and outputs the switching value signal to the safe area.
10. An isolated safety barrier as claimed in claim 1, wherein: the loop unit is a temperature signal input safety barrier which receives signals of a thermocouple, a millivolt, a potentiometer and a thermal resistor of the dangerous area, converts the signals into independent and linear signals of the safety area and outputs the signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409932.1A CN113113901A (en) | 2021-04-16 | 2021-04-16 | Isolated safety barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409932.1A CN113113901A (en) | 2021-04-16 | 2021-04-16 | Isolated safety barrier |
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| Publication Number | Publication Date |
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| CN113113901A true CN113113901A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110409932.1A Pending CN113113901A (en) | 2021-04-16 | 2021-04-16 | Isolated safety barrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665438A (en) * | 2022-05-24 | 2022-06-24 | 浙江中控技术股份有限公司 | Terminal board and surge device and safety barrier device comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204103894U (en) * | 2014-08-29 | 2015-01-14 | 深圳市英威腾电气股份有限公司 | A kind of guard grating device |
| CN109032050A (en) * | 2018-10-17 | 2018-12-18 | 青橙（张家港）氢能源科技有限公司 | A kind of Flameproof and intrinsically safe programmable controller |
| CN212644005U (en) * | 2020-07-02 | 2021-03-02 | 上海亿边科技有限公司 | High-precision isolation type industrial safety grid device |
-
2021
- 2021-04-16 CN CN202110409932.1A patent/CN113113901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204103894U (en) * | 2014-08-29 | 2015-01-14 | 深圳市英威腾电气股份有限公司 | A kind of guard grating device |
| CN109032050A (en) * | 2018-10-17 | 2018-12-18 | 青橙（张家港）氢能源科技有限公司 | A kind of Flameproof and intrinsically safe programmable controller |
| CN212644005U (en) * | 2020-07-02 | 2021-03-02 | 上海亿边科技有限公司 | High-precision isolation type industrial safety grid device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665438A (en) * | 2022-05-24 | 2022-06-24 | 浙江中控技术股份有限公司 | Terminal board and surge device and safety barrier device comprising same |
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