CN112660967A - Elevator and method for recycling self-generated electric energy - Google Patents
Elevator and method for recycling self-generated electric energy Download PDFInfo
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- CN112660967A CN112660967A CN202011475221.6A CN202011475221A CN112660967A CN 112660967 A CN112660967 A CN 112660967A CN 202011475221 A CN202011475221 A CN 202011475221A CN 112660967 A CN112660967 A CN 112660967A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000010248 power generation Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention relates to an elevator and a method for recycling self-generated electric energy, wherein the elevator comprises a lift car, a counterweight device and a traction machine, the lift car and the counterweight device are suspended below the lift car and the counterweight device by bypassing the traction machine through a traction rope, and the traction machine is arranged at the top of an elevator channel, and the elevator is characterized in that: the power supply line of the tractor is connected with the power output end of the double-power-supply change-over switch, the power supply end of the double-power-supply change-over switch is connected with the commercial power of a power grid and the discharge end of the storage battery, the charging interface of the storage battery is connected with the discharge end of the tractor, and the discharge end of the storage battery is further connected with the elevator power utilization system. The method includes connecting a circuit; controlling the discharge of the storage battery; controlling the charging of the storage battery; if the storage battery is fully charged and the charging is disconnected, the traction machine is in a discharging state, and the electric energy of the traction machine drives the brake unit to work, so that the electric energy is consumed. The invention is economical and environment-friendly, collects and uses electric energy on site, and greatly reduces the power consumption of the elevator.
Description
Technical Field
The invention relates to an elevator and a method for recycling self-generated electric energy, and belongs to the technical field of electric energy batteries.
Background
The elevator running process is the process of converting electric energy and mechanical energy, when the elevator runs upwards under heavy load or runs downwards under light load, energy needs to be provided for the elevator to increase mechanical potential energy, the elevator converts the electric energy into the mechanical potential energy through a traction machine, and the traction machine is in a power consumption state; when the elevator runs upwards under light load or downwards under heavy load, the mechanical potential energy needs to be reduced in the running process, the mechanical potential energy of the elevator is converted into electric energy through the traction machine, and the traction machine is in a power generation state. In addition, the process from high-speed running to braking stop of the elevator is the process of mechanical kinetic energy consumption, wherein a part of kinetic energy is converted into electric energy by a traction machine, and the traction machine is in the process of power generation. The electric energy generated in the power generation process of the traction machine needs to be timely processed, otherwise, the traction machine is seriously damaged. For a frequency conversion elevator, electric energy generated in the power generation process of a traction machine reversely returns to a direct current end of frequency conversion through a three-phase inverter bridge of a frequency converter and is stored in a direct current capacitor, the capacity of the direct current capacitor is limited, when the electric energy generated by the traction machine is large enough and exceeds the capacity of the direct current capacitor, the direct current capacitor is damaged, and therefore the excessive electric energy part must be consumed. The conventional method for processing the part of electric energy of the variable frequency elevator is to additionally arrange a braking unit and a braking resistor at the end of a direct current capacitor, when the voltage at the two ends of the capacitor reaches a certain value, the braking unit acts, and the redundant electric energy is converted into heat energy through the braking resistor and is dissipated into the air. The waste of electric energy is caused, and how to recycle the electric energy generated in the running process of the elevator becomes a topic of environmental protection and energy saving.
Disclosure of Invention
In order to solve the technical problems, the invention provides an elevator and a method for recycling self-generated electric energy, and the specific technical scheme is as follows:
the utility model provides a retrieval and utilization is from elevator that produces electric energy, includes car, counterweight and hauler, car and counterweight pass through the hauler through the tractive rope and hang below it, and the hauler setting is at the top of elevator passageway, the power supply line connection dual supply change over switch's of hauler power output end, the end that discharges of electric wire netting commercial power and battery is connected to dual supply change over switch's power supply end, the interface that charges of battery connects the end that discharges of hauler, the end that discharges of battery still connects elevator power consumption system.
Furthermore, the elevator power system comprises an elevator passage lighting system, a lighting system in the elevator car, an air supply system, an elevator monitoring system, an elevator floor key board, an elevator car floor display board, an upper key/lower key and a floor display board which are arranged at an elevator entrance of each floor.
Furthermore, the storage battery is connected with an electric quantity detector, and the electric quantity detector is connected with a dual-power-supply change-over switch to control the change-over of the dual-power-supply change-over switch.
Furthermore, the storage battery is also connected with a charging voltage detection circuit, and when the storage battery is fully charged, the detection circuit outputs a control signal to cut off the charging loop, so that the automatic power-off when the storage battery is fully charged is realized.
Furthermore, the discharging end of the tractor is also connected with a braking unit, and when the tractor is in a discharging state and the storage battery is in a full-charging power-off state, the discharging electric energy of the tractor is consumed and released through the braking unit.
Further, the braking unit is an electric heating sheet or an electric fan.
Further, the battery capacity of the storage battery is larger than the sum of the power consumption of the elevator car when the elevator car descends from the top floor to the bottom floor in an empty state and the power consumption of the elevator car when the elevator car ascends from the bottom floor to the top floor in a full state.
The method for recycling the self-generated electric energy of the elevator comprises the following steps:
step 1: a connection circuit: a circuit system connected to the elevator;
step 2: and (3) storage battery discharge control: when the electric quantity detector detects that the electric quantity of the storage battery reaches 50%, the dual-power-supply changeover switch works, the storage battery is closed to supply power to the traction machine, only the elevator power system is supplied with power, and the power supply of the traction machine is supplied by the mains supply of a power grid;
and step 3: and (3) controlling the charging of the storage battery: when the elevator is in heavy load descending, light load ascending and deceleration braking, the traction machine is in a power generation state, the traction machine charges the storage battery at the moment, and the charging is automatically disconnected after the storage battery is fully charged;
and 4, step 4: if the storage battery is fully charged and the charging is disconnected, the traction machine is in a discharging state, and the electric energy of the traction machine drives the brake unit to work, so that the electric energy is consumed.
Further, in step 3, after the storage battery is fully charged, the charging is disconnected, and the charging is restarted under the following conditions: the time length of the delay after the charging is disconnected is longer than the time when the elevator car descends from the top floor to the bottom floor in an idle state, or the electric quantity of the storage battery is less than 95% of the total capacity.
The invention has the beneficial effects that:
in the running process of the elevator, the generated electric energy is stored in the storage battery, the storage battery supplies power to the elevator power utilization system, and when the electric quantity is enough, the traction machine is supplied with power, so that the power consumption of a power grid is reduced, and the elevator is energy-saving and environment-friendly. Meanwhile, in order to prevent the traction machine from being in a discharge state after the storage battery is fully charged, a brake unit is arranged for consuming electric energy and ensuring the circuit safety.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the elevator of the present invention has a circuit block diagram, in which a battery is connected to a charge detector, which is available on the market and is a mature technology, and can detect the charge of the battery in real time, such as the power display of an electric vehicle, which is an application of the power detector. Now a model is given: a microcontroller of the grand semiconductor company model HT46R 63.
The dual power change-over switch in this patent also can purchase on market and obtain, realizes switching between battery powered and electric wire netting commercial power supply, when battery power is enough, with the battery power supply, when battery power is not enough, switches to electric wire netting commercial power supply. The switching is triggered by the electric quantity detector of the storage battery, the electric quantity of the storage battery is detected by the electric quantity detector immediately, and when the electric energy consumption of the storage battery reaches 50%, the storage battery is cut off to supply power to the traction machine, and the power is changed into the power supply of the electric network commercial power. A dual power supply changeover switch is provided with an optional model: the HGLD-160/4P switch of the mid-hundred million smart appliances limited.
The traction machine is connected to the storage battery through the charging circuit, when the traction machine is discharged, electric energy is stored in the storage battery through the charging circuit, after the storage battery is fully charged, the traction machine is disconnected through the automatic power-off circuit, if the traction machine is still in a discharging state at the moment, the electric energy is transmitted to the braking unit, and the electric energy is consumed by the braking unit. Prevent the electric energy from concentrating and burning the circuit. The charging circuit and the automatic power-off circuit during charging are both in the prior art and are connected conventionally, which is not described herein.
The big better that the battery energy storage of this patent is big, but based on the discharge and the power consumption cycle of elevator, power consumption cycle and discharge cycle are on the frequency of lift, and the discharge cycle is only a little bit more than power consumption cycle, so the electric energy reserve capacity of battery set up to be than the empty power consumption of going down the bottom from the top layer of car and the full-load power consumption that goes up to the top layer from the bottom by a little big alright from the total of power consumption of bottom layer and top layer, 10~30% big usually, bigger again, also can have the storage space extravagant, increase equipment cost.
Elevator power consumption in this patent elevator is in the in-service use, also connect the electric wire netting commercial power, be used for the elevator to use the initial stage, the battery electric energy is not enough, and the later stage battery is ageing seriously, when needing to be updated, prevent that elevator power consumption system (including elevator passageway lighting system, lighting system in the car, air supply system, elevator monitored control system, floor display panel in elevator floor keypad and the car, and set up button and floor display panel about each floor elevator mouth) outage, in the normal use after the battery is full of electricity, the electric quantity of battery is enough to supply elevator power consumption system to use. The non-carbonization of illumination, display panels and the like is thoroughly realized, and the national electric energy is saved.
The automatic charging and discharging method of the elevator comprises the following steps:
step 1: a connection circuit: a circuit system connected to the elevator;
step 2: and (3) storage battery discharge control: when the electric quantity detector detects that the electric quantity of the storage battery reaches 50%, the dual-power-supply changeover switch works, the storage battery is closed to supply power to the traction machine, only the elevator power system is supplied with power, and the power supply of the traction machine is supplied by the mains supply of a power grid;
and step 3: and (3) controlling the charging of the storage battery: when the elevator is in heavy load down, light load up and speed reduction braking, the hauler is in the power generation state, and the hauler charges for the battery this moment, and after the battery is full of, the automatic disconnection charges, and the condition of opening again to charge does: the time delay length after the charging is disconnected is longer than the time when the lift car descends from the top floor to the bottom floor in an idle load mode, or the electric quantity of the storage battery is less than 95% of the total capacity;
and 4, step 4: if the storage battery is fully charged and the charging is disconnected, the traction machine is in a discharging state, and the electric energy of the traction machine drives the brake unit to work, so that the electric energy is consumed. The condition that the electricity is discharged through the brake unit is not many, but the discharge brake unit, such as an electric heating sheet or an electric fan, is also arranged to prevent the elevator from continuously descending under light load or/and ascending under heavy load, so that the tractor is in a discharge state for a long time.
The invention collects the electric energy generated by the elevator and recycles the electric energy to the elevator to work, realizes the on-site collection and the on-site use of the electric energy, and is economic and environment-friendly.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a retrieval and utilization is from elevator that produces electric energy, includes car, counterweight and hauler, car and counterweight pass through the hauler through the tractive rope and hang below it, and the hauler sets up the top at elevator passageway, its characterized in that: the power supply line of the tractor is connected with the power output end of the double-power-supply change-over switch, the power supply end of the double-power-supply change-over switch is connected with the commercial power of a power grid and the discharge end of the storage battery, the charging interface of the storage battery is connected with the discharge end of the tractor, and the discharge end of the storage battery is further connected with the elevator power utilization system.
2. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the elevator power system comprises an elevator channel lighting system, a lighting system in the car, an air supply system, an elevator monitoring system, an elevator floor key board, a car floor display board, an upper button/lower button and a floor display board, wherein the upper button/lower button and the floor display board are arranged at elevator openings of all floors.
3. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the storage battery is connected with an electric quantity detector, and the electric quantity detector is connected with a dual-power-supply change-over switch to control the change-over of the dual-power-supply change-over switch.
4. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the storage battery is also connected with a charging voltage detection circuit, and when the storage battery is fully charged, the detection circuit outputs a control signal to cut off the charging loop, so that the storage battery is fully charged and automatically powered off.
5. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the discharge end of the traction machine is also connected with a brake unit, and when the traction machine is in a discharge state and the storage battery is in a full-charge power-off state, the discharge electric energy of the traction machine is consumed and released through the brake unit.
6. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the brake unit is an electric heating sheet or an electric fan.
7. The elevator for recycling self-generating electric energy according to claim 1, characterized in that: the battery capacity of the storage battery is larger than the sum of the power consumption of the elevator car when the elevator car is unloaded from the top floor to the bottom floor and the power consumption of the elevator car when the elevator car is fully loaded from the bottom floor to the top floor.
8. The method for recycling the self-generated electric energy of the elevator is characterized in that: the method comprises the following steps:
step 1: a connection circuit: connecting the electrical circuitry of the elevator of claims 1-7;
step 2: and (3) storage battery discharge control: when the electric quantity detector detects that the electric quantity of the storage battery reaches 50%, the dual-power-supply changeover switch works, the storage battery is closed to supply power to the traction machine, only the elevator power system is supplied with power, and the power supply of the traction machine is supplied by the mains supply of a power grid;
and step 3: and (3) controlling the charging of the storage battery: when the elevator is in heavy load descending, light load ascending and deceleration braking, the traction machine is in a power generation state, the traction machine charges the storage battery at the moment, and the charging is automatically disconnected after the storage battery is fully charged;
and 4, step 4: if the storage battery is fully charged and the charging is disconnected, the traction machine is in a discharging state, and the electric energy of the traction machine drives the brake unit to work, so that the electric energy is consumed.
9. The method of recycling elevator self-generated electrical energy of claim 8, wherein: in the step 3, after the storage battery is fully charged, the charging is disconnected, and the condition of starting the charging again is as follows: the time length of the delay after the charging is disconnected is longer than the time when the elevator car descends from the top floor to the bottom floor in an idle state, or the electric quantity of the storage battery is less than 95% of the total capacity.
10. The method of recycling elevator self-generated electrical energy of claim 8, wherein: in the step 2, when the electric energy of the storage battery is consumed to 50%, the electric energy is switched to the electric network commercial power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011475221.6A CN112660967A (en) | 2020-12-15 | 2020-12-15 | Elevator and method for recycling self-generated electric energy |
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| CN202011475221.6A CN112660967A (en) | 2020-12-15 | 2020-12-15 | Elevator and method for recycling self-generated electric energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229634A (en) * | 2021-12-29 | 2022-03-25 | 苏州汇川控制技术有限公司 | Elevator architecture, elevator control method, device and computer readable storage medium |
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| JP2004189482A (en) * | 2002-11-29 | 2004-07-08 | Hitachi Ltd | Elevator system |
| CN201821147U (en) * | 2010-08-24 | 2011-05-04 | 东莞市三洋电梯有限公司 | Self-using energy regeneration device of elevator |
| CN102303798A (en) * | 2011-08-30 | 2012-01-04 | 王旭 | Energy-saving elevator and energy-saving method thereof |
| CN205397774U (en) * | 2016-03-01 | 2016-07-27 | 深圳市中大电梯有限公司 | Energy saving system for elevator |
| CN106385101A (en) * | 2016-09-22 | 2017-02-08 | 广东寰宇电子科技股份有限公司 | Method and device for realizing power supply for automatic rescue device of high-power type elevator |
| CN211733542U (en) * | 2019-12-12 | 2020-10-23 | 浙江西子重工机械有限公司 | Emergency charging device for elevator |
-
2020
- 2020-12-15 CN CN202011475221.6A patent/CN112660967A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189482A (en) * | 2002-11-29 | 2004-07-08 | Hitachi Ltd | Elevator system |
| CN201821147U (en) * | 2010-08-24 | 2011-05-04 | 东莞市三洋电梯有限公司 | Self-using energy regeneration device of elevator |
| CN102303798A (en) * | 2011-08-30 | 2012-01-04 | 王旭 | Energy-saving elevator and energy-saving method thereof |
| CN205397774U (en) * | 2016-03-01 | 2016-07-27 | 深圳市中大电梯有限公司 | Energy saving system for elevator |
| CN106385101A (en) * | 2016-09-22 | 2017-02-08 | 广东寰宇电子科技股份有限公司 | Method and device for realizing power supply for automatic rescue device of high-power type elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229634A (en) * | 2021-12-29 | 2022-03-25 | 苏州汇川控制技术有限公司 | Elevator architecture, elevator control method, device and computer readable storage medium |
| CN114229634B (en) * | 2021-12-29 | 2024-03-22 | 苏州汇川控制技术有限公司 | Elevator architecture, elevator control method, equipment and computer readable storage medium |
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