CN212460359U - Electrical control system for paving highway thermal insulation layer - Google Patents
Electrical control system for paving highway thermal insulation layer Download PDFInfo
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- CN212460359U CN212460359U CN202021114267.0U CN202021114267U CN212460359U CN 212460359 U CN212460359 U CN 212460359U CN 202021114267 U CN202021114267 U CN 202021114267U CN 212460359 U CN212460359 U CN 212460359U
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Abstract
The utility model provides an electrical control system for highway thermal insulation layer is laid adopts on-vehicle installation, and electrical control is accomplished by automation equipment. The device adopts full electric drive, is operated by the operator in the driver's cabin, very big limit reduced the cost of labor in the operation of traditional highway thermal insulation layer. In the laying operation of the heat insulation layer, the thickness and the width of the heat insulation layer can be fully automatically adjusted by adjusting the rotating speed of the motor and the number of the spray head switches.
Description
Technical Field
The utility model relates to a technical field is laid to the highway, in particular to an electrical control system for highway thermal insulation layer is laid.
Background
At present, the pavement of a road thermal insulation layer is generally installed on a vehicle, and the electrical control is completed by automatic equipment. However, the existing device is not driven by full electricity, but is operated by an operator in a cab, so that the labor cost in the operation of a road thermal insulation layer is high. In the laying operation of the heat insulation layer, the full-automatic adjustment of the thickness and the width of the heat insulation layer can not be realized by adjusting the rotating speed of the motor and the switch number of the spray heads.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrical control system for highway thermal insulation layer is laid for it is high to solve the cost of labor, the unable full automatically regulated condition.
An electrical control system for paving a road thermal barrier, comprising:
a touch screen for inputting control command and displaying control state
The programmable logic controller is electrically connected with the touch screen and is used for receiving a control instruction and feeding back control information to the touch screen;
the pneumatic unit set is connected with the programmable logic controller and is used for providing driving force;
the driving motor set is connected with the programmable logic controller and is used for controlling the discharge flow;
the pressure and temperature acquisition unit group is connected with the programmable logic controller and used for feeding back temperature and pressure to the programmable logic controller
And the material spraying gun head is connected with the pneumatic unit group pipeline and is used for discharging.
As an embodiment of the present invention: the model of the programmable logic controller is 6ES7221-1FH22-OXA 8.
As an embodiment of the present invention: the pneumatic unit group comprises an air compressor, a plurality of groups of discharge valves and a plurality of groups of cleaning valves, and the air compressor is connected with the plurality of groups of discharge valves and the plurality of groups of cleaning valves through pipelines.
As an embodiment of the present invention: the driving motor group consists of a driving motor and a pump; wherein the content of the first and second substances,
the pump comprises a plurality of cleaning pumps and a plurality of discharging pumps
The number of the driving motors is not less than 1;
the driving motor is connected with a frequency converter, and the frequency converter is respectively connected with the air switch and the programmable logic controller; wherein the content of the first and second substances,
the air switch is also externally connected with a three-phase power supply, and the air switch and the programmable logic controller are installed in a preset electrical cabinet.
As an embodiment of the present invention: an electrical cabinet cooling fan and a transformer are installed in the electrical cabinet; the transformer is electrically connected with the air switch and the programmable logic controller.
As an embodiment of the present invention: and the transformer is also connected with a phase sequence protector in parallel, and the phase sequence protector is also connected with a three-phase power supply.
As an embodiment of the present invention: the pressure and temperature acquisition unit group consists of a plurality of groups of pressure transmitters and a plurality of groups of thermocouples, and the plurality of groups of pressure transmitters and the plurality of groups of thermocouples are connected with the programmable logic controller.
As an embodiment of the present invention: the programmable logic controller is also connected with an alarm circuit;
the alarm circuit comprises a first diode, a second diode, a third diode, a voltage comparator, a first resistor, a second resistor, an adjustable resistor and a first triode; wherein the content of the first and second substances,
the output end of the left side of the voltage comparator is connected with the anode of the first diode, and the positive input end of the left side of the voltage comparator is connected with the cathode of the first diode through an adjustable resistor; the inverted input end on the left side of the voltage comparator is connected with the pressure transmitter, and the first diode emits light when the pressure of the pressure transmitter is abnormal;
the output end on the right side of the voltage comparator is connected with the anode of the second diode, and the positive input end on the right side of the voltage comparator is connected with the cathode of the second diode through a first resistor; the inverting input end on the right side of the voltage comparator is connected with the input end of the thermocouple, and the second diode is used for emitting light when the temperature of the thermocouple is abnormal;
the second resistor is connected with the base electrode of the first triode, the collector electrode of the first triode is connected with the negative electrode of the third diode, the positive electrode of the third diode and the voltage input end of the voltage comparator are connected with the pressure transmitter and the thermocouple, the positive electrode of the second resistor is connected with the editable logic controller, and the third diode emits light when the pressure and the temperature are normal.
The beneficial effects of the utility model reside in that:
(1) the Programmable Logic Controller (PLC) and the frequency converter (motor driving unit) adopt communication control, and stepless regulation of flow is realized.
(2) And a pneumatic valve of the pneumatic unit set is controlled by a Programmable Logic Controller (PLC), so that the paving width is adjusted.
(3) And the cleaning pump and the pneumatic valve of the pneumatic unit set are controlled through Programmable Logic Control (PLC), so that the automatic cleaning of the material spraying gun head and the pipeline is realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a system diagram according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first wiring control group connection of the programmable logic controller according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second connection control group of the programmable logic controller according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a third connection control group of the programmable logic controller according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a fourth connection control group of the programmable logic controller according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a pneumatic unit set in an embodiment of the present invention;
fig. 7 is a schematic control diagram of a motor of a driving motor set in an embodiment of the present invention;
fig. 8 is a schematic diagram of an electrical cabinet fan circuit in an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a phase sequence protector according to an embodiment of the present invention;
fig. 10 is a schematic diagram of the pressure transmitter connection circuit of the pressure and temperature acquisition unit set in the embodiment of the present invention;
fig. 11 is a schematic circuit diagram illustrating a thermocouple of the pressure and temperature acquisition unit group according to an embodiment of the present invention;
fig. 12 is a schematic diagram of an alarm circuit in an embodiment of the present invention.
Fig. 13 is a material spraying control system of the material spraying gun head according to the embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model relates to an electrical control system for highway thermal insulation layer is laid adopts on-vehicle installation, and electrical control is accomplished by automation equipment. The device adopts full electric drive, is operated by the operator in the driver's cabin, very big limit reduced the cost of labor in the operation of traditional highway thermal insulation layer. In the laying operation of the heat insulation layer, the thickness and the width of the heat insulation layer can be fully automatically adjusted by adjusting the rotating speed of the motor and the number of the spray head switches.
Example 1:
the system composition diagram shown in the attached figure 1: an electrical control system for paving a road thermal barrier, comprising:
and the touch screen is used for inputting a control instruction and displaying a control state. The utility model discloses a model of touch-sensitive screen is preferred: siemens smart 700IE V3.
The programmable logic controller is electrically connected with the touch screen and is used for receiving a control instruction and feeding back control information to the touch screen;
the pneumatic unit set is connected with the programmable logic controller and is used for providing driving force;
the driving motor set is connected with the programmable logic controller and is used for controlling the discharge flow;
the pressure and temperature acquisition unit group is connected with the programmable logic controller and used for feeding back temperature and pressure to the programmable logic controller
And as shown in the attached figure 13, the material spraying gun head is connected with the pneumatic unit group pipeline and is used for discharging.
The utility model discloses a control system can divide into the three-layer, is respectively and shows layer, control layer and execution layer. The display layer is a touch screen (HMI), and an operator can start and stop the equipment in the cab, input working data and monitor the running state of the equipment in real time. The utility model discloses a display screen is the touch-sensitive screen, but also can still be provided with the physics button when actually implementing for switching on and shutting down and physics are adjusted.
The control layer is a programmable logic controller and is used for controlling the work flow of the equipment.
The execution layer is a pneumatic unit group, a motor driving unit group and a pressure and temperature acquisition unit group.
The pneumatic unit group is driven by compressed air, and a programmable logic controller outputs control signals and receives feedback signals to realize discharging, backflow, flushing and paving width adjustment.
The motor driving unit group consists of four motors and pumps, and the rotation speed of the motors is controlled through a programmable logic controller to control flow rate and realize paving thickness adjustment. The pressure and temperature acquisition unit group acquires the pressure and temperature values of the equipment back to the PLC through the pressure transmitter and the thermocouple, and response of overhigh and overlow pressure and temperature values is realized.
The beneficial effects of the utility model reside in that:
(1) the programmable logic controller and the frequency converter (motor driving unit) adopt communication control, and stepless regulation of flow is realized.
(2) And the pneumatic valve of the pneumatic unit group is controlled by the programmable logic controller to realize the adjustment of the laying width.
(3) And the cleaning pump and the pneumatic valve of the pneumatic unit set are controlled through programmable logic control, so that the automatic cleaning of the material spraying gun head and the pipeline is realized.
(4) The labor cost is saved.
Example 2:
as an embodiment of the present invention: as shown in fig. 2, fig. 3, fig. 4 and fig. 5, the connection schematic diagram of the connection control group of the programmable logic controller according to the present invention; the utility model discloses the PLC who chooses for use has 4 wiring control groups to realize touch-sensitive screen, driving motor group, pneumatic unit group and pressure temperature acquisition unit group's control. The model of the programmable logic controller is 6ES7221-1FH22-OXA 8.
The utility model discloses Siemens 6ES7221-1FH22-OXA 8's PLC controller of selection, but not be restricted to Siemens 6ES7221-1FH22-OXA 8's PLC controller, can realize the utility model discloses a control mode and functional condition under, can change Siemens 6ES7221-1FH22-OXA8 into other PLCs such as Schneider, ohm dragon, mitsubishi, pine, roche.
Example 3:
as an embodiment of the present invention: as shown in the control schematic diagram of fig. 6, the pneumatic unit set consists of an air compressor, a plurality of groups of discharge valves and a plurality of groups of cleaning valves, and the air compressor is connected with the plurality of groups of discharge valves and the plurality of groups of cleaning valves through pipelines.
The utility model discloses pneumatic unit group mainly provides compressed air for realize the washing of ejection of compact and pipeline and spray gun head through compressed air.
Example 4:
as an embodiment of the present invention: as shown in a motor control schematic diagram of a driving motor set in fig. 7, the driving motor set consists of a driving motor and a pump; wherein the content of the first and second substances,
the pump comprises a plurality of cleaning pumps and a plurality of discharging pumps
The number of the driving motors is not less than 1;
the driving motor is connected with a frequency converter, and the frequency converter is respectively connected with the air switch and the programmable logic controller; the frequency converter of the invention has the following types: siemens, V20, was at a power of 15 kw. The motor is a three-phase asynchronous motor, and the model number of the motor is TS132M 2-211 KW, which comprises 11KW and 15 KW.
The air switch is also externally connected with a three-phase power supply, and the air switch and the programmable logic controller are installed in a preset electrical cabinet.
The utility model discloses a driving motor control ejection of compact flow has the preset procedure among the programmable logic controller, predetermines the rotational speed that the procedure passes through control converter control motor to the control flow, the converter still has the steady voltage effect.
Example 5:
as an embodiment of the present invention: as shown in fig. 8, an electrical cabinet cooling fan and a transformer are installed in the electrical cabinet; the transformer is electrically connected with the air switch and the programmable logic controller.
The utility model discloses a regulator cubicle radiator fan can effectively take away heat in the regulator cubicle, and then reduces programmable logic controller and air switch's heat, prevents that the regulator cubicle is overheated.
Example 6:
as an embodiment of the present invention: as shown in fig. 9, the transformer is further connected in parallel with a phase sequence protector, and the phase sequence protector is further connected with a three-phase power supply. The phase sequence protector is also connected with a switch, and the switch is a power line switch with a key and is used for preventing idle personnel from illegally starting the operation machine.
The phase sequence protector is used for detecting the phase sequence of the three-phase power supply, preventing phase loss and further enabling the driving motor to be damaged, and the three-phase power supply works only when the phase sequence protector is communicated with the three-phase power supply.
Example 7
As an embodiment of the present invention: as shown in fig. 10 and 11, the pressure and temperature acquisition unit set is composed of multiple sets of pressure transmitters and multiple sets of thermocouples, and the multiple sets of pressure transmitters and the multiple sets of thermocouples are connected with the programmable logic controller.
The utility model discloses a pressure signal and temperature signal are gathered to multiunit pressure transmitter and multiunit thermocouple, then feed back to programmable logic controller, realize the full automatic control of this system.
As an embodiment of the present invention: the programmable logic controller is also connected with an alarm circuit;
the alarm circuit comprises a first diode D1, a second diode D2, a third diode D3, a voltage comparator F, a first resistor R1, a second resistor R2, an adjustable resistor G and a first triode VIT; wherein the content of the first and second substances,
the output end on the left side of the voltage comparator F is connected with the anode of a first diode D1, and the positive input end on the left side of the voltage comparator F is connected with the cathode of a first diode D1 through an adjustable resistor G; the inverting input end on the left side of the voltage comparator F is connected with a pressure transmitter, and the first diode D1 emits light when the pressure of the pressure transmitter is abnormal;
the output end on the right side of the voltage comparator F is connected with the anode of a second diode D2, and the positive input end on the right side of the voltage comparator F is connected with the cathode of a second diode D2 through a first resistor R1; the inverted input end on the right side of the voltage comparator F is connected with the input end of the thermocouple, and the second diode is used for emitting light when the temperature of the thermocouple is abnormal;
the second resistor R2 is connected with the base of the first triode VIT, the collector of the first triode VIT is connected with the cathode of the third diode D3, the anode of the third diode D3 and the voltage input end of the voltage comparator F are both connected with the thermocouple and the pressure transmitter, the anode of the second resistor R2 is connected with the programmable logic controller, and the third diode D3 emits light when the pressure and the temperature are normal.
The principle of the utility model lies in: the first diode D1 primarily shows an abnormal state of the pressure transmitter; the second diode D2 mainly shows the temperature abnormal state of the thermocouple; the third diode D3 is mainly used to trace the source of the abnormal cause when the thermocouple and the pressure transmitter are normal, i.e. when the temperature and the pressure are normal, the diode is always on, and the diode is convenient to work. The voltage comparator F has two functions, wherein the first function is to compare the same voltage with two preset threshold voltages; the second kind of function is that two input voltage compare with two predetermined voltage threshold values respectively the utility model discloses in, the second kind of function has been adopted. The utility model discloses still show corresponding abnormal state through the touch-sensitive screen display when abnormal state.
Example 9:
the utility model discloses a control flow does:
(1) setting system flow (setting the laying thickness of a thermal insulation layer) and the quantity of opened material spraying gun heads (setting the width of the laid thermal insulation layer) on a touch screen (HMI) according to construction requirements;
(2) two (four) material pumps of the motor driving unit are started on a touch screen (HMI), at the moment, two (or four) material pump motors operate according to a set flow, and a Programmable Logic Controller (PLC) monitors the pressure, signals input by the temperature acquisition unit and the running condition of the motor driving unit, and at the moment, the system is in a circulating state.
(3) And a material discharging button is clicked on the touch screen, the pneumatic valves in the pneumatic unit groups are opened according to the number of the arranged material spraying gun heads (the system is switched from a circulating state to a material discharging state), and the system carries out laying operation of the heat insulation layer according to the set width and thickness.
(4) After the laying operation of the thermal insulation layer is finished, a touch screen (HMI) stop button is clicked, the opened material spraying gun head is closed (the system is switched to a circulation state), after a few seconds, the cleaning pump is started, and the gun head and the pipeline which just spray materials are sequentially cleaned.
(5) In the whole process of system operation, a Programmable Logic Controller (PLC) of a control layer monitors the temperature and pressure values of key parts of the system in real time through a pressure and temperature acquisition unit, and alarm or shutdown response can be generated when the temperature and pressure values exceed set values.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An electrical control system for paving a road thermal barrier, comprising:
a touch screen for inputting control command and displaying control state
The programmable logic controller is electrically connected with the touch screen and is used for receiving a control instruction and feeding back control information to the touch screen;
the pneumatic unit set is connected with the programmable logic controller and is used for providing driving force;
the driving motor set is connected with the programmable logic controller and is used for controlling the discharge flow;
the pressure and temperature acquisition unit group is connected with the programmable logic controller and is used for feeding back temperature and pressure to the programmable logic controller;
and the material spraying gun head is connected with the pneumatic unit group pipeline and is used for discharging.
2. An electrical control system for road insulation laying according to claim 1 wherein said programmable logic controller is of the type 6ES7221-1FH22-OXA 8.
3. The electrical control system for paving the thermal insulation layer of the highway according to claim 1, wherein the pneumatic unit set consists of an air compressor and a plurality of groups of discharge valves and a plurality of groups of cleaning valves, and the air compressor is connected with the plurality of groups of discharge valves and the plurality of groups of cleaning valves through pipelines.
4. An electrical control system for road thermal barrier paving according to claim 1 wherein said drive motor group is comprised of a drive motor and a pump; wherein the content of the first and second substances,
the pump comprises a plurality of cleaning pumps and a plurality of discharging pumps;
the number of the driving motors is not less than 1;
the driving motor is connected with a frequency converter, and the frequency converter is respectively connected with the air switch and the programmable logic controller; wherein the content of the first and second substances,
the air switch is also externally connected with a three-phase power supply, and the air switch and the programmable logic controller are installed in a preset electrical cabinet.
5. The electrical control system for paving the thermal insulation layer on the road as claimed in claim 4, wherein an electrical cabinet heat dissipation fan and a transformer are installed in the electrical cabinet; the transformer is electrically connected with the air switch and the programmable logic controller.
6. An electrical control system for road thermal barrier paving according to claim 5 wherein the transformer is further connected in parallel with a phase sequence protector, the phase sequence protector being further connected to a three phase power supply.
7. The electrical control system for road thermal barrier paving of claim 1 wherein the pressure and temperature acquisition cell set is comprised of a plurality of sets of pressure transmitters and a plurality of sets of thermocouples, both of which are connected to the programmable logic controller.
8. An electrical control system for road thermal barrier paving according to claim 7, wherein said programmable logic controller is further connected to an alarm circuit;
the alarm circuit comprises a first diode (D1), a second diode (D2), a third diode (D3), a voltage comparator (F), a first resistor (R1), a second resistor (R2), an adjustable resistor (G) and a first triode (VIT); wherein the content of the first and second substances,
the output end on the left side of the voltage comparator (F) is connected with the anode of a first diode (D1), and the positive input end on the left side of the voltage comparator (F) is connected with the cathode of the first diode (D1) through an adjustable resistor (G); the inverting input end on the left side of the voltage comparator (F) is connected with the pressure transmitter, and the first diode (D1) emits light when the pressure of the pressure transmitter is abnormal;
the output end on the right side of the voltage comparator (F) is connected with the anode of a second diode (D2), and the positive input end on the right side of the voltage comparator (F) is connected with the cathode of the second diode (D2) through a first resistor (R1); the inverting input end on the right side of the voltage comparator (F) is connected with the thermocouple input end, and the second diode (D2) is used for emitting light when the temperature of the thermocouple is abnormal;
the second resistor (R2) is connected with the base of the first triode (VIT), the collector of the first triode (VIT) is connected with the cathode of the third diode (D3), the anode of the third diode (D3) and the voltage input end of the voltage comparator (F) are connected with the thermocouple and the pressure transmitter, the anode of the second resistor (R2) is connected with the programmable logic controller, and the third diode (D3) emits light when the pressure and the temperature are normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114267.0U CN212460359U (en) | 2020-06-16 | 2020-06-16 | Electrical control system for paving highway thermal insulation layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114267.0U CN212460359U (en) | 2020-06-16 | 2020-06-16 | Electrical control system for paving highway thermal insulation layer |
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| Publication Number | Publication Date |
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| CN212460359U true CN212460359U (en) | 2021-02-02 |
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| CN202021114267.0U Active CN212460359U (en) | 2020-06-16 | 2020-06-16 | Electrical control system for paving highway thermal insulation layer |
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