CN112027827B - Method for shifting along household power conductor by matching with existing house and additionally installing elevator - Google Patents
Method for shifting along household power conductor by matching with existing house and additionally installing elevator Download PDFInfo
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- CN112027827B CN112027827B CN202010815070.8A CN202010815070A CN112027827B CN 112027827 B CN112027827 B CN 112027827B CN 202010815070 A CN202010815070 A CN 202010815070A CN 112027827 B CN112027827 B CN 112027827B
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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
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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
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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Abstract
A method for moving along a household power conductor by matching with an existing house and additionally installing an elevator belongs to the field of power construction. The method provides a set of typical design suitable for power conductor relocation engineering reference under various working conditions by aiming at the research on the environmental characteristics, power supply point configuration and elevator installation positions of different residential houses and combining the requirements of power operation maintenance departments through comparative analysis, cost measurement and three-dimensional modeling. The system adheres to the principles of safety, reliability, advanced technology, reasonable investment, unified standard, environment coordination, local conditions and scientific design, adopts a modular design means, and achieves the coordinated unification of uniformity, reliability, advancement, economy, adaptability and flexibility. The technical scheme is beneficial to unifying the construction standard and the equipment standard, reducing the resource consumption and land occupation, improving the working efficiency, reducing the construction and operation cost and laying a solid foundation for the work of power grid planning, cost control, capital management, bid procurement and the like.
Description
Technical Field
The invention belongs to the field of electric power construction, and particularly relates to a method for shifting along an electric power lead of a house by matching with an additionally-installed elevator of an existing house.
Background
In recent years, in order to meet the requirements of social and economic development and population aging, the residential condition of citizens is further improved, and the addition of elevators to existing residences is widely popularized.
As is known, most of old residential districts are powered by overhead lines, low-voltage overhead conductors are horizontally erected along door opening side pole devices, and users are powered after the low-voltage overhead conductors are connected.
The elevator is arranged at the outer side of a wall body of a corridor, an elevator shaft is vertically arranged from the first floor to the top floor, and inevitably intersects with a power wire erected along the wall, so that the path conflicts, and a sufficient safety distance is reserved at the intersection in order to ensure safe power supply and reliable operation of the elevator.
In the current stage, because the power line relocation application process is complicated, the proposed relocation scheme is not easy to coordinate, the design period is long, and the like, enough safety distance is not reserved for overhead conductors in the actual implementation of an additionally installed elevator project, even the overhead conductors are changed, relocated and shifted privately, the requirements of power operation and maintenance are not met completely, and huge potential safety hazards are reserved for power consumption of residents.
The adverse effects generated by the existing switching, transferring and shifting schemes mainly include the following categories:
1. the violation construction of the elevator is easy to cause personal safety accidents
2. Insufficient safety distance between the wire and the building
3. Increased difficulty in operation and maintenance
4. The user connects the power line of the user privately, the reliability of power supply is reduced, and the potential safety hazard of power supply is increased.
Therefore, it is necessary to typically install elevators in existing houses to cooperate with relocation of the electrical power wiring along the house.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for shifting along a household power conductor by matching with an existing house and additionally installing an elevator. The technical scheme follows the principle that materials are more simplified, the typical design is more precise, the technology is more advanced, and the scheme is more applicable, adheres to the principle that safety, reliability, advanced technology, reasonable investment, unified standard, environment coordination, local conditions and scientific design, adopts a modular design means, and strives to achieve the coordinated unification of the unification, reliability, advancement, economy, adaptability and flexibility. The implementation of the technical scheme is beneficial to unifying the construction standard and the equipment standard, reducing the resource consumption and land occupation, improving the working benefit, reducing the construction and operation cost and laying a solid foundation for the work of power grid planning, cost control, capital management, bidding purchase and the like.
The technical scheme of the invention is as follows: the method for shifting along the household power conductor by matching with the additionally-installed elevator of the existing house is characterized by comprising the following steps of:
1. the original single-side serial overhead power supply is changed into two-side parallel power supply;
2. a newly laid lead of a newly erected electric pole is used for avoiding the elevator structure to supply power;
3. the prefabricated cross arm of the elevator structure is connected with a lead for power supply;
4. the wire on the two sides of the elevator is connected through a crossing cable for power supply;
5. the power supply is realized by connecting wires at two sides by a cable overhead laying bypass elevator structure;
6. the whole house is powered by a low-voltage branch box;
7. the whole-cell power grid is optimally supplied with power by adopting a low-voltage branch box;
8. power is supplied by modifying the position of a power line home entrance point;
9. the elevator structure avoids the house lead;
the method is matched with a method for additionally arranging the elevator in the existing house to move along the household power conductor, aims at the researches on the environmental characteristics, the power supply point configuration and the elevator installation position of different house houses, combines the requirements of power operation maintenance departments, and provides a set of typical design suitable for power conductor moving engineering reference under various working conditions through comparative analysis, cost measurement and three-dimensional modeling, thereby providing guarantee for the safe power consumption of residents and the reliable operation of the elevator.
Specifically, the original single-side serial overhead power supply is changed into two-side parallel power supply, and the multi-span building is suitable for a unit building, two sides of which are adjacent to the building and provided with low-voltage power supply lines for connection change.
Specifically, the structure for avoiding the elevator by newly releasing the conducting wire through the newly-erected electric pole is suitable for a unit building with an upright space in front of an additionally-installed elevator building.
Concretely, the prefabricated cross arm of passing through elevator structure change into and connect the wire power supply, be applicable to the condition that elevator structure mountable cross arm erects the wire.
Specifically, the power supply is realized by connecting wires at two sides of the elevator through a crossing cable, and the power supply is suitable for a unit building with a condition-excavated road surface.
Specifically, the power supply is achieved by connecting wires at two sides by the overhead cable laying bypassing the elevator structure, and the power supply device is suitable for the conditions that the space of a unit building is narrow and the cable can be erected by installing a cross arm on the elevator structure.
Specifically, the whole house adopts the low-voltage branch boxes to improve the power supply of the cable for the house entrance, and is suitable for the whole building to add elevators in batches and a community with excavation conditions.
Specifically, the full-cell power grid matching optimization adopts a low-voltage branch box for power supply, and is suitable for matching with the power grid matching optimization and the whole cell power supply transformation.
Specifically, the power supply is realized by improving the position of a household point, and the power supply is suitable for a line tail end unit building.
Specifically, elevator self structure avoid along the family wire, be applicable to the condition that 2 layers of elevator structure do not have the vestibule.
Compared with the prior art, the invention has the advantages that:
1. the technical scheme follows the principle of more simplified materials, more elaborate typical design, more advanced technology and more applicable scheme, adheres to the principle of safety, reliability, advanced technology, reasonable investment, unified standard, environment coordination, local conditions and scientific design, adopts a modular design means and strives to achieve the coordinated unification of the unification and the reliability, the advancement, the economy, the adaptability and the flexibility;
2. the implementation of the technical scheme is beneficial to unifying the construction standard and the equipment standard, reducing the resource consumption and land occupation, improving the working benefit, reducing the construction and operation cost and laying a solid foundation for the work of power grid planning, cost control, capital management, bidding purchase and the like.
Drawings
FIG. 1 is a schematic layout diagram of the present invention, which is changed from the original single-side serial overhead power supply to the two-side parallel power supply;
FIG. 2 is a schematic layout of the present invention for providing power to an elevator structure by newly paying out wires from a newly erected mast;
FIG. 3 is a schematic layout of the present invention for supplying power by changing prefabricated cross arms of an elevator structure into wires;
fig. 4 is a schematic layout of the present invention for connecting the power supply of the wires on both sides of the elevator through the crossover cable;
fig. 5 is a schematic layout of the power supply scheme of the invention for connecting two sides of a wire by cable overhead laying bypassing elevator structure;
FIG. 6 is a schematic layout diagram of the entire residence of the present invention using low voltage branch boxes to improve the cable house-service power supply scheme;
fig. 7 is a layout schematic diagram of the low-voltage branch box power supply scheme adopted for the whole-cell power grid matching optimization;
FIG. 8 is a schematic layout of the power supply scheme of the present invention by improving the location of the user's point;
fig. 9 is a schematic layout of the power supply scheme of the invention for avoiding the power supply scheme along the house lead by the self structure of the elevator.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The technical scheme of the invention mainly aims to ensure the safety, the feasibility, the economy and the attractiveness of the power conductor after the relocation and transformation; and recommending reliable design schemes according to different residential environment characteristics, and finally obtaining a typical design which can be used for power line conductor relocation engineering reference.
According to the method, a set of typical design suitable for power lead relocation engineering reference under various working conditions is finally provided by aiming at the research on the environmental characteristics, power supply point configuration and elevator installation positions of different residential buildings, combining the needs of power operation maintenance departments, integrating a large number of cases, and performing contrastive analysis, cost measurement, three-dimensional modeling and the like, so that the method provides guarantee for the safe power utilization of residents and the reliable operation of elevators.
Specifically, the method for shifting along the household power conductor comprises the following power supply layout and mode:
(1) The original single-side serial overhead power supply is changed into two-side parallel power supply:
the applicable conditions are as follows: the multi-storey building is suitable for the unit buildings with low-voltage power supply lines for the reconnection of the adjacent buildings on the two sides of the multi-storey building.
The advantages are that: the economy is higher, and construction convenience, operation maintenance are convenient.
The disadvantages are that: the number of the unit buildings meeting the condition is small, and the application range is narrow.
Note:
1. the scheme relates to the change of an electric system, the capacity of a modified background area and the section of a main line lead are required to be verified to meet the requirement, and the exchange of the whole line lead is possibly involved, so that the engineering construction cost is increased.
2. The span of the wall load device between the buildings is less than 40m.
The main materials are as follows: wires 60m 4, wall load devices 5 sets, and the like.
Investment analysis, namely estimating the total cost to be 3.5 ten thousand yuan. The cost of the conductor erection is about 500 yuan/m (three-phase four-wire), and the cross arm device is 2000 yuan/set.
(2) Dodge elevator structure through newly putting the wire newly found pole:
the applicable conditions are as follows: the method is suitable for a unit building with a vertical rod space in front of an additional elevator building.
The advantages are that: the electric system is not changed, and the operation and maintenance are convenient.
The disadvantages are as follows: the newly-established electric pole blocks light and occupies land resources, and written approval of property and committee of the community needs to be obtained.
Note: the cement pole is more economical, but needs to be pulled, and occupies larger land space; the steel pipe pole occupies small space, but the economic efficiency is low.
The main materials are as follows: 2-base steel pipe poles/cement poles, 80m 4 phases of leads, 4 sets of pole upper/wall load devices and the like.
Investment analysis:
about 5000 yuan/group of cement pole; the steel pipe rod is about 27000 yuan/base; the cost of the conductor erection is about 500 yuan/m (three-phase four-wire), and the cost of the wall load device is about 2000 yuan/set.
The total cost is estimated to be 6.9 ten thousand yuan by adopting a cement rod scheme; the total cost is estimated to be 10 ten thousand yuan by adopting the steel pipe pole scheme. If two adjacent doorframes are provided with the elevator, the total cost is about 1.5 times of that of a single doorframe additionally provided with the elevator, the shared cost can be reduced to 5 ten thousand yuan, and the more the adjacent doorframes are additionally provided, the more economic the elevator is.
Investment conversion formula: the total cost (Yuan) = (the number of cement poles is multiplied by 5000+ the number of devices on the poles is multiplied by 3000+ the path length of the three-phase four-wire lead is multiplied by 500+ the number of newly added wall load devices is multiplied by 2000) × (1 +/-5%)
Adopting steel pipe pole total cost (Yuan) = (the number of steel poles is multiplied by 27000, the number of devices on the pole is multiplied by 3000, the path length of the three-phase four-wire lead is multiplied by 500, the number of devices with the newly added wall load is multiplied by 2000), multiplied by (1 +/-5 percent)
(3) The prefabricated cross arm of elevator structure changes the wire power supply:
the applicable conditions are as follows: the elevator structure can be provided with cross arms for erecting wires.
The advantages are that: high economical efficiency, no change of electric system and convenient construction.
The disadvantages are that: temporary connecting measures are required to be taken in the early stage of elevator installation and construction.
Note: in the earlier stage of elevator installation and construction, temporary reconnection measures need to be taken for avoiding the construction range of the elevator, and the scheme can be implemented after the main structure of the elevator shaft is completed. The scheme includes a temporary protection measure fee.
The prefabricated cross arm angle steel model is not less than 50+ 5 + 650mm +230mm, is welded on the elevator main body structure, and is galvanized for corrosion prevention and provided with a steel inclined strut.
The main materials are as follows: the conductive lines 30m 4 are equal.
Investment analysis, the total cost is estimated to be 4.1 ten thousand yuan, and the lead erection cost is about 500 yuan/m (three-phase four-wire).
Investment conversion formula: total cost (yuan) = (three-phase four-wire conductor path length m × 500) × (1 ± 5%) + temporary plan cost 25000 yuan.
(4) The power supply is realized by connecting wires on two sides of the elevator through a crossing cable:
the applicable conditions are as follows: the method is suitable for the unit building with the condition of road surface excavation.
The advantages are that: the electrical system is not changed.
The disadvantages are as follows: the economy is lower, increases the circuit fault point, needs the excavation road surface.
The main materials are as follows: cables 45m, guard bars, road surface excavation and the like.
Note: the road surface excavation needs to obtain written approval of the property and the residence committee of the community.
Investment analysis, total cost estimation: 11 ten thousand yuan, cable laying cost: 1700 yuan/m (including road surface excavation), and the wall load device is about 2000 yuan/set.
(5) The power supply is realized by connecting wires on two sides by a cable overhead laying bypass elevator structure:
the applicable conditions are as follows: the unit building space is narrow and the elevator structure can be provided with cross arms to erect cables.
The advantages are that: the electric system is not changed, and the economical efficiency is higher.
The disadvantages are as follows: temporary connecting measures are required to be taken in the early stage of elevator installation and construction.
The main materials are as follows: cable 20m, wall load device, etc.
Note: in the earlier stage of elevator installation and construction, temporary connecting measures need to be taken for avoiding the construction range of the elevator, and the scheme can be implemented after the main structure of the elevator shaft is completed. The scheme includes a temporary protection fee.
Investment analysis:
and (4) estimating the total cost: 5.6 ten thousand yuan, cable laying cost: 650 yuan/m, and about 2000 yuan/set of wall load device.
Investment conversion formula: total cost (yuan) = (cable laying path length m × 650+ number of wall load devices × 2000) × (1 ± 5%) + temporary plan cost 25000 yuan.
(6) The whole house adopts a low-voltage branch box to improve the cable for house service power supply:
the applicable conditions are as follows: the method is suitable for the whole building to install the elevators in batches and is suitable for the residential areas with excavation conditions.
The advantages are that: and the power supply reliability is high.
The disadvantages are as follows: the economy is low, and the land used by the cell needs to be occupied.
The main materials are as follows: the total length of the branch box 1 seat and the cable (5 loops) is 100m, and the protection rod and the road surface are excavated.
Note: the land occupation of newly-installed branch boxes and the road surface excavation need to obtain written approval of the property and the living committee of the community.
Investment analysis:
and (4) estimating the total cost: 30 ten thousand yuan, cable laying cost: 650 yuan/m, branch box: 17000 yuan/seat.
Investment conversion formula: total cost (yuan) = (number of branch boxes × 17000+ length of low-voltage cable path m × 650+ length of white road excavation × 2700+ number of wall load devices × 2000) × (1 ± 5%)
The scheme considers that 4 loops of low-voltage outgoing lines are supplied by the branch boxes, the number of the additionally installed elevators is 4, and the equal sharing cost is the lowest and is 8 ten thousand yuan. The equal share cost is increased along with the reduction of the number of the elevators. When only 1 door span is provided with an elevator, the cost of adopting the scheme is about 25 ten thousand yuan.
(7) The complete network of the whole community is optimally supplied with power by adopting a low-voltage branch box:
the applicable conditions are as follows: community suitable for matching with power grid matching optimization and whole community power supply transformation
The advantages are that: the power grid is matched and optimized, and the power supply reliability is high.
The disadvantages are as follows: the economy is relatively low, and the occupied area of a cell is large.
The main materials are as follows: the total length of the box transformer substation 1 seat, the branch box 1 seat, the cable (10 loops) is 500m, and the guard bar, the road surface excavation and the like are performed.
Note:
1. the land occupation of newly-built box transformers and branch boxes is involved, and the written approval of the property and the residence committee of the community is required to be obtained when the road surface is excavated.
2. This scheme does not contain 10kV case and becomes the inlet wire.
Investment analysis, total cost estimation: 222 ten thousand yuan, the cost of a single door is about 28 ten thousand yuan, and the cable laying cost is as follows: 650 yuan/m, box transformer substation: 53 ten thousand yuan/seat, branch box: 17000 yuan/seat.
Investment conversion formula: total cost (yuan) = (number of box transformers × 530000+ number of branch boxes × 17000+ length of low-voltage cable path m × 650+ length of white road surface excavation × 2700+ number of wall load devices × 2000) × (1 ± 5%)
The scheme considers 8 additional elevators, and the uniform sharing cost is 28 ten thousand yuan.
(8) By improving the power supply of the position of the user point:
the applicable conditions are as follows: the method is suitable for the line tail end unit building.
The advantages are that: the economy is high.
The disadvantages are as follows: there are fewer units that satisfy this condition.
The main materials are as follows: wire 20m × 4 phase, wall load device 1 set, and the like.
Note: to change the location of the entrance point, a wall opening requires written approval of the property and the committee of the community.
Investment analysis, total cost estimation: 1.3 ten thousand yuan. The erection cost of the lead: 500 yuan/m, and the wall load device is about 2000 yuan/set.
Investment conversion formula: total cost (yuan) = (three-phase four-wire conductor path length m × 500+ newly added wall load device number × 2000) × (1 ± 5%).
(9) The elevator self structure avoids the wire along the house:
the current situation wire installation is avoided through the structural adjustment of the elevator. The electrical facility need not be displaced.
The applicable conditions are as follows: the 2-floor elevator structure has no corridor.
The advantages are that: the electric power facility does not need to be shifted, does not generate cost, and does not influence the installation progress of the elevator.
Note:
1. the design structure of the elevator needs to be coordinated and optimized by a user and an elevator manufacturer.
2. Protective measures are required during the installation and construction of the elevator.
(10) Recommending a typical design scheme:
scheme comparison table
Comprehensive economy, safety, convenience and the like, under the condition of meeting applicable conditions, the following scheme is recommended to be adopted:
1. the scheme is nine: the elevator self structure avoids the wires along the house:
this scheme is through elevator self structural adjustment, avoids current situation air wire, and the electric power facility need not to shift, does not produce the expense. The addition of elevators in conjunction with corridor arrangements is recommended as the preferred option.
2. And a third scheme is as follows: install the cross arm through the elevator structure additional and change the wire power supply:
the cross arm device capable of meeting the electric power requirement is prefabricated through the elevator structure, only insulators need to be installed during construction, a wire is erected, construction is simple, investment cost is low, the cross arm device is suitable for all elevator building added, and the cross arm device is a scheme which is worthy of wide popularization and is most easily accepted by common people.
3. Scheme II: dodge the elevator structure power supply through newly putting the wire newly and founding the pole:
although the scheme is economical, the wire completely avoids an elevator structure through a newly erected electric pole, so that resident public facilities are effectively isolated from electric power facilities, and higher power supply reliability is ensured.
4. The scheme is seven: the complete network of the whole community is optimally supplied with power by adopting a low-voltage branch box:
the scheme effectively combines the matching optimization of the regional low-voltage power grid, and comprehensively improves the power supply reliability and safety of residents by optimizing the power supply configuration and the power supply mode. The power supply line enters the ground, so that the community environment is beautified, the environment-friendly power supply design principle is fully embodied, and the power supply line is a preferred scheme for matching with power grid matching optimization and whole community power supply transformation.
The technical scheme of the invention follows the principle of more simplified materials, more refined typical design, more advanced technology and more applicable scheme, adheres to the principle of safety, reliability, advanced technology, reasonable investment, unified standard, environment coordination, local conditions and scientific design, adopts a modular design means and strives to achieve the coordinated unification of the unification and the reliability, the advancement, the economy, the adaptability and the flexibility.
The implementation of the technical scheme is beneficial to unifying the construction standard and the equipment standard, reducing the resource consumption and land occupation, improving the working benefit, reducing the construction and operation cost and laying a solid foundation for the work of power grid planning, cost control, capital management, bidding purchase and the like.
The invention can be widely applied to the design and construction field of the existing residential building elevator installation project.
Claims (1)
1. A method for shifting along a household power conductor by matching with an existing house and additionally installing an elevator is characterized by comprising the following steps:
for the unit building with low-voltage power supply lines for reconnection adjacent to the building on two sides of the building, the original single-side serial overhead power supply mode is changed into a two-side parallel power supply mode;
for a unit building with a vertical rod space in front of an additionally installed elevator building, a new wire is placed on a new vertical rod to avoid an elevator structure;
for the condition that the cross arm can be installed and the wires are erected on the elevator structure, the way of connecting the prefabricated cross arm of the elevator structure with the wires for power supply is adopted;
for a unit building with a condition excavated road surface, connecting wires at two sides of an elevator for power supply through a crossing cable;
for the condition that the space of a unit building is narrow and a cross arm can be installed on an elevator structure to erect a cable, the cable is laid overhead, the elevator structure is bypassed, and wires on two sides are connected to supply power;
elevators are additionally arranged in batches in the whole building, the building has a community with excavation conditions, and the whole house adopts a low-voltage branch box power supply mode;
for the cells matched with power grid matching optimization and whole cell power supply transformation, the power grid matching optimization of the whole cell adopts a low-voltage branch box power supply mode;
for a unit building at the tail end of a line, power is supplied in a mode of improving the position of a user point;
for the condition that the 2-layer elevator structure has no corridor, the power supply is carried out in a mode that the elevator structure avoids the wires along the house;
the method for moving the elevator along the power lead of the house is matched with the existing house, and a typical design suitable for power lead moving engineering reference under various working conditions is provided by combining the needs of power operation maintenance departments and performing comparative analysis, cost measurement and three-dimensional modeling aiming at the environmental characteristics, power supply point configuration and elevator installation positions of different house houses.
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| CN202010815070.8A CN112027827B (en) | 2020-08-13 | 2020-08-13 | Method for shifting along household power conductor by matching with existing house and additionally installing elevator |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030213652A1 (en) * | 2002-05-15 | 2003-11-20 | Waupaca Elevator Company, Inc. | Residential elevator |
| CN104310163A (en) * | 2014-08-21 | 2015-01-28 | 罗阿波 | Rebuilding structure for high-rise building |
| CN105401776B (en) * | 2015-11-20 | 2018-09-28 | 国家电网公司 | A kind of device being used to support transmission pressure in electric pole replacement process |
| CN108343257B (en) * | 2018-03-16 | 2020-08-07 | 杭州市建筑设计研究院有限公司 | Construction method for additionally installing elevator in existing multi-storey house |
| CN111350372A (en) * | 2020-03-23 | 2020-06-30 | 河北省建筑科学研究院有限公司 | Assembly type rapid reconstruction method for existing house with additionally-installed elevator |
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