CN111099471A - Elevator and elevator control method - Google Patents
Elevator and elevator control method Download PDFInfo
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- CN111099471A CN111099471A CN201911381420.8A CN201911381420A CN111099471A CN 111099471 A CN111099471 A CN 111099471A CN 201911381420 A CN201911381420 A CN 201911381420A CN 111099471 A CN111099471 A CN 111099471A
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- 238000000034 method Methods 0.000 title claims description 14
- 238000012545 processing Methods 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000013021 overheating Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an elevator, which comprises at least one set of first temperature sensor group arranged on a traction machine, wherein the first temperature sensor group is connected to a temperature controller, and the temperature controller is connected to the input end of a main control panel of an elevator control system. The invention can prolong the service life of the elevator and the components, prevent the elevator from overheating and ensure the operation safety of the elevator.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator suitable for a plateau environment.
Background
At present, no elevator is specially used in the plateau environment, and the traditional method adopts the plateau environment for more usage. The plateau environment has thin air and small air density, and has great heat influence on the elevator. If the temperature of the motor coil rises, the insulativity is reduced, the clearance of electrical equipment needs to be larger, the mechanical abrasion is large, and therefore the service life of the elevator is greatly reduced.
Therefore, the technical personnel in the field are dedicated to developing an elevator, which is particularly suitable for plateau environments, can prevent the elevator from influencing the performance of main components due to long-term operation in the plateau environments, improves the safety of elevator operation and has the effect of preventing accidents in the bud.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an elevator specially used in a plateau environment, which prevents the elevator from affecting the main components due to long-term operation in the plateau environment, improves the safety of the operation of the elevator, and has the effect of preventing accidents.
In order to achieve the aim, the invention provides an elevator, which comprises at least one set of first temperature sensor group installed on a traction machine, wherein the first temperature sensor group is connected to a temperature controller, and the temperature controller is connected to the input end of a main control board of an elevator control system.
Preferably, the main control board is connected with a frequency converter, and the frequency converter is connected with a second temperature sensor.
Preferably, the main control board is connected with a frequency converter, and the frequency converter is connected with a current sensor.
Preferably, the first temperature sensor group includes two temperature sensors respectively installed in the traction machine and on the brake.
Preferably, the main control board is connected with a car top control board, and the car top control board is connected with the car door lock contact.
Preferably, the main control board is connected with a car top control board, the car top control board is connected with a door machine frequency converter, and the door machine frequency converter is connected with a temperature control switch.
Preferably, the car door lock contact is made of silver-plated alloy.
An elevator control method comprising at least one of the following steps:
s1: detecting the temperature of the tractor, judging whether the temperature exceeds a preset threshold value, and if so, reducing the running speed of the elevator; if not, no processing is carried out;
s2: detecting the internal temperature of the frequency converter, judging whether the internal temperature exceeds a preset threshold value, and if so, reducing the running speed of the elevator; if not, no processing is carried out;
s3: detecting the output current value of the frequency converter, if the output current exceeds the output current threshold value of the frequency converter for N times in one-time operation, reducing the operation speed of the elevator, otherwise, not processing, wherein N is a constant and is more than or equal to 1.
Preferably, the elevator is required to finish executing the command for reducing the running speed after the current running.
Preferably, the elevator stops running when any one of the following conditions is met:
A. the temperature of the traction machine exceeds a preset threshold value and lasts for H hours;
B. the internal temperature of the frequency converter exceeds a preset threshold value and lasts for H hours;
C. the output current of the frequency converter exceeds the output current of the frequency converter for N times in one-time operation and is set as a threshold value for H hours continuously;
wherein H is a constant
The invention has the beneficial effects that: the invention can prolong the service life of the elevator and the components, prevent the elevator from overheating and ensure the operation safety of the elevator.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, an elevator includes at least one first temperature sensor group installed on a traction machine 01, the first temperature sensor group is connected to a temperature controller TA, and the temperature controller TA is connected to an input terminal X24 of a main control board C2 of an elevator control system 04. In this embodiment, a first temperature sensor group is installed on the hoisting machine 01, and two temperature sensors, namely Rt1 and Rt2, are provided, wherein Rt1 is installed in the hoisting machine 01, and Rt2 is installed in a brake, namely a band-type brake, of the hoisting machine 01. Multiple sets of first temperature sensor groups can also be adopted, and each set is connected in parallel. Both Rt1 and Rt2 are connected to a temperature controller TA that can receive the temperature sensor signal and can output a contact signal. The temperature controller TA sets the set temperature for the dual temperature zone detection, when 1 or 2 of Rt1 and Rt2 exceed the temperature set threshold of the temperature controller TA during the temperature controller detection, the temperature controller TA outputs a group of closed contact signals T1 to be connected to the input end X24 of the control system main control panel C2 through cables, otherwise, the temperature controller TA does not process.
The main control board C2 is connected with the converter 03, and the converter 03 is connected with the second temperature sensor Rt3, and the second temperature sensor Rt3 can be connected with the converter 03 in a built-in integrated manner or externally arranged inside the converter 03. The second temperature sensor Rt3 detects that the internal temperature of the frequency converter exceeds the set threshold (can be set) of the frequency converter, and transmits a signal T2 to the control system main control board C2 through a connecting cable. Meanwhile, the frequency converter 03 is connected with a current sensor A, the current sensor A can be connected with the frequency converter 03 in a built-in integrated mode, and the current sensor A can also be arranged inside the frequency converter 03 in an external mode.
The main control board C2 is connected with sedan-chair top control panel 02, and sedan-chair door lock contact SMC on sedan-chair door machine 05 is connected to sedan-chair top control panel 02, and sedan-chair door lock contact SMC adopts silver-plated alloy, and the arc phenomenon that draws when the effective control switch door in-process lock contact divides reduces safety door lock return circuit total resistance to it generates heat to reduce the back part.
The main control board C2 is connected with sedan-chair top control panel 02, and sedan-chair top control panel 02 passes through cable junction sedan-chair door machine 05, specifically is that sedan-chair top control panel 02 is connected to a quick-witted converter VVVVF, and quick-witted converter VVVVF has temperature detect switch MDO through cable junction, when quick-witted converter VVVVF of door detects a motor temperature detect switch signal feedback when overheated, automatic proportional reduction switch door speed (in the national standard, can set for), switch door speed resumes normally after temperature detect switch overheat signal disappears.
Through the arrangement, the control of opening and closing the door can be realized, and the temperature is prevented from being overheated.
In this embodiment, the frequency converter is WEDT-C, and the main control board is WEST-C2.
The elevator control method is realized by adopting the elevator, and comprises at least one of the following steps:
s1: detecting the temperature of the tractor through a first temperature sensor group, judging whether the temperature exceeds a preset threshold value through a temperature controller TA, and transmitting a signal T1 to a main control panel C2, wherein if the temperature exceeds the preset threshold value, the main control panel C2 controls and reduces the running speed of the elevator; if not, no processing is carried out.
In this embodiment, when 1 or 2 of the RTs 1 and RT2 exceed the temperature setting threshold of the temperature controller TA during the detection of the temperature controller, the temperature controller TA outputs a set of closed contact signals T1, which are connected to the input terminal X24 of the control system main control board C2 through a cable.
S2: detecting the internal temperature of the frequency converter through a second temperature sensor Rt3, judging whether the internal temperature exceeds a preset threshold value, and if so, reducing the running speed of the elevator; if not, no processing is carried out.
When the temperature sensor Rt3 arranged inside the frequency converter detects that the temperature inside the frequency converter exceeds the set threshold value (can be set) of the frequency converter in the running process of the elevator, a signal T2 is transmitted to a main control panel C2 of a control system through a connecting cable, and the main control panel C2 controls the running speed of the elevator to be reduced or not to be processed through comparison.
S3: the output current value of the frequency converter is detected through the current sensor A, if the output current of the frequency converter exceeds the output current threshold value (can be freely set) of the frequency converter for N times in one-time operation, the operation speed of the elevator is reduced, otherwise, the processing is not carried out, wherein N is a constant, and N is more than or equal to 1.
In this embodiment, during a complete operation period, when the current sensor a detects that the output current of the frequency converter is continuous for 5 times, i.e. N =5, the signal a1 is transmitted to the control system main control board C2 through the connected cable, and the main control board C2 controls to reduce the operation speed of the elevator or does not process the elevator.
In the embodiment, the reduction of the running speed of the elevator in any step is carried out at 92 percent (which can be set in the practical process) of the rated speed of the elevator.
In this embodiment, when the above three steps are performed, if the main control board C2 detects a signal (T1, T2, a1, one or more of them) and the signal is still valid after a certain time (e.g. 2 minutes in this embodiment), the main control board C2 will reduce the elevator running speed to 92% of the rated speed, and the elevator will run at 92% of the rated speed and record the speed change information in the control system (T1, T2, a 1). And the elevator needs to execute a command for reducing the running speed after finishing the current running. At the moment, the running speed of the elevator is properly reduced, and the temperature of the traction machine 01 or the internal temperature of the frequency converter 03 is favorably reduced on the premise of not influencing the running of the elevator.
In this embodiment, the elevator stops operating when any of the following conditions is satisfied:
A. the traction machine temperature exceeds the preset threshold value for H hours, i.e., the temperature detected through step S1.
B. The internal temperature of the frequency converter exceeds the preset threshold value for H hours, namely the temperature detected in the step S2;
C. the frequency converter output current value exceeds the frequency converter output current threshold value for N times in one operation and lasts for H hours, that is, the frequency converter output current detected in step S3 exceeds the frequency converter output current threshold value for N times.
Wherein, H is a constant, and can take any value larger than 0, and 2 is taken in this embodiment. The working principle of the method is that when T1, T2 and A1 are not released after 1 or more signals are continuously valid for H hours (H is a constant and can be set), a control system main control board C2 stops running, opens a door to wait for an elevator, sends information to maintenance personnel through remote monitoring, displays special characters on an outbound display board, and when the temperature of a tractor or a frequency converter falls back or the fault is clear, the elevator can restore to automatically run. If the overheating signal is not released after being continuously effective for 2 hours, the frequency converter of the door machine stops outputting the opened door, corresponding faults are reported, and when the temperature of the motor of the door falls back or the faults are clear, the door is opened and closed to be normal.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An elevator, characterized by: the elevator control system comprises at least one first temperature sensor group arranged on a traction machine (01), wherein the first temperature sensor group is connected to a temperature controller (TA), and the temperature controller (TA) is connected to an input end (X24) of a main control panel (C2) of an elevator control system (04).
2. The elevator as claimed in claim 1, wherein: the main control board (C2) is connected with a frequency converter (03), and the frequency converter (03) is connected with a second temperature sensor.
3. The elevator as claimed in claim 1, wherein: the main control board (C2) is connected with a frequency converter (03), and the frequency converter (03) is connected with a current sensor (A).
4. The elevator as claimed in claim 1, wherein: the first temperature sensor group comprises two temperature sensors which are respectively arranged in the traction machine (01) and on the brake.
5. An elevator as claimed in claim 1, 2 or 3, characterized in that: the main control panel (C2) is connected with a car top control panel (02), and the car top control panel (02) is connected with a car door lock contact (SMC).
6. An elevator as claimed in claim 1, 2 or 3, characterized in that: the main control board (C2) is connected with a car roof control board (02), the car roof control board (02) is connected with a gantry crane frequency converter (VVVF), and the gantry crane frequency converter (VVVF) is connected with a temperature control switch (MDO).
7. The elevator as claimed in claim 5, wherein: the car door lock contact (SMC) is made of silver-plated alloy.
8. An elevator control method, characterized by comprising at least one of the following steps:
s1: detecting the temperature of the tractor, judging whether the temperature exceeds a preset threshold value, and if so, reducing the running speed of the elevator; if not, no processing is carried out;
s2: detecting the internal temperature of the frequency converter, judging whether the internal temperature exceeds a preset threshold value, and if so, reducing the running speed of the elevator; if not, no processing is carried out;
s3: detecting the output current value of the frequency converter, if the output current exceeds the output current threshold value of the frequency converter for N times in one-time operation, reducing the operation speed of the elevator, otherwise, not processing, wherein N is a constant and is more than or equal to 1.
9. The elevator control method according to claim 8, wherein: the elevator needs to execute a command for reducing the running speed after finishing the current running.
10. The elevator control method according to claim 8, wherein: when any one of the following conditions is met, the elevator stops running:
A. the temperature of the traction machine exceeds a preset threshold value and lasts for H hours;
B. the internal temperature of the frequency converter exceeds a preset threshold value and lasts for H hours;
C. the output current of the frequency converter exceeds the output current of the frequency converter for N times in one-time operation and is set as a threshold value for H hours continuously;
wherein H is a constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381420.8A CN111099471A (en) | 2019-12-27 | 2019-12-27 | Elevator and elevator control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381420.8A CN111099471A (en) | 2019-12-27 | 2019-12-27 | Elevator and elevator control method |
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| CN111099471A true CN111099471A (en) | 2020-05-05 |
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| CN201911381420.8A Pending CN111099471A (en) | 2019-12-27 | 2019-12-27 | Elevator and elevator control method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005203210A (en) * | 2004-01-15 | 2005-07-28 | Meidensha Corp | Temperature control device of battery |
| CN101925528A (en) * | 2008-03-27 | 2010-12-22 | 三菱电机株式会社 | Elevator control system |
| CN102344066A (en) * | 2010-07-22 | 2012-02-08 | 东芝电梯株式会社 | Elevator brake anomaly detection system and method thereof |
| CN104401829A (en) * | 2014-10-08 | 2015-03-11 | 日立电梯（中国）有限公司 | Overheat protection method and device for power device of elevator frequency converter |
| CN205602868U (en) * | 2016-03-30 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Novel quick response elevator control system |
| CN106429681A (en) * | 2016-08-30 | 2017-02-22 | 住友富士电梯有限公司 | Elevator fault diagnosis method and system |
| CN211687825U (en) * | 2019-12-27 | 2020-10-16 | 重庆威斯特电梯有限公司 | Elevator with a movable elevator car |
-
2019
- 2019-12-27 CN CN201911381420.8A patent/CN111099471A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005203210A (en) * | 2004-01-15 | 2005-07-28 | Meidensha Corp | Temperature control device of battery |
| CN101925528A (en) * | 2008-03-27 | 2010-12-22 | 三菱电机株式会社 | Elevator control system |
| CN102344066A (en) * | 2010-07-22 | 2012-02-08 | 东芝电梯株式会社 | Elevator brake anomaly detection system and method thereof |
| CN104401829A (en) * | 2014-10-08 | 2015-03-11 | 日立电梯（中国）有限公司 | Overheat protection method and device for power device of elevator frequency converter |
| CN205602868U (en) * | 2016-03-30 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Novel quick response elevator control system |
| CN106429681A (en) * | 2016-08-30 | 2017-02-22 | 住友富士电梯有限公司 | Elevator fault diagnosis method and system |
| CN211687825U (en) * | 2019-12-27 | 2020-10-16 | 重庆威斯特电梯有限公司 | Elevator with a movable elevator car |
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