CN103863914A - Control method of internal pressure of elevator car - Google Patents
Control method of internal pressure of elevator car Download PDFInfo
- Publication number
- CN103863914A CN103863914A CN201310674720.1A CN201310674720A CN103863914A CN 103863914 A CN103863914 A CN 103863914A CN 201310674720 A CN201310674720 A CN 201310674720A CN 103863914 A CN103863914 A CN 103863914A
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- Prior art keywords
- pressure
- lift car
- change rate
- internal pressure
- control method
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
When an elevator is lifted, an ear blockage phenomenon occurs due to changes of an internal pressure of an elevator car. The internal pressure of the elevator car is changed repeatedly between two different pressure change rates so that a control method inducing passengers' swallow actions can effectively ease the ear blockage phenomenon. However, in existing control methods, the pressure in the elevator car needs to be repeatedly switched to be a positive pressure and a negative pressure relative to the atmospheric pressure in a short time, and problems that a structure of a control device and a control method are complex exist. When the elevator goes down, a positive pressure state in the elevator car is only used to form stair-stepping pressure control in the first half of the running time (T<T0), and a negative pressure state in the elevator car is only used to form the stair-stepping pressure control in the second half of the running time (T>T0). Therefore, the pressure control device only needs to implement switchover once, that is to say, a pressurized state is switched into a pressure reducing state, and the pressure control can be realized.
Description
Technical field
The present invention relates to a kind of control method of lift car internal pressure, especially relate to the compress control method of the ear choking phenomenon that a kind of variation that reduces the lift car internal pressure during because of lifting in the elevator of hyper-speed or super large stroke causes.
Background technology
In high building etc., use have large stroke to carry out at a high speed the lift facility of the lift car of lifting, in above-mentioned lift facility, the pressure easily producing sharply in lift car changes, and can cause passenger to produce ear and block and human discomfort.In order to improve this phenomenon, various solutions are proposed in the prior art.
As the background technology of the art, a kind of lift facility using in Super High mansion is disclosed in patent documentation 1, in place near the steps lift facility, by making the stepped variation of lifting along with lift car of air pressure in lift car, the action of swallowing of passenger in lift car can be brought out effectively, thereby the abnormal sensory of ear can be prevented or relax.In place near the steps lift facility, be provided with supercharging setting device, this supercharging setting device has the gas pressure detector that respectively air pressure inside and outside lift car detected, to carrying out the pressurizer of supercharging in lift car and controlling the microcomputer of this pressurizer.Microcomputer has comparing unit that the air pressure inside and outside lift car is compared and according to the function of the boost control unit of comparative result control pressurizer, start starting till lift car stops from lift car, make the air pressure stepped variation in the scope of specified value in lift car.According to patent documentation 1, by making the stepped variation of air pressure in lift car, can make passenger recognize the variation of air pressure, by making effectively passenger swallow action, can relax the abnormal sensory of ear.
In addition, disclose a kind of lift facility in patent documentation 2, it can eliminate pressure sharply and change in the time that the pressure in lift car is pressurizeed and reduced pressure, and in making passenger recognize that pressure changes, gives passenger and swallow the time of action.Control by pressure adjustment unit and control unit thereof that the pressure in lift car is pressurizeed and reduced pressure, make in specific time, the pressure in lift car to be pressurizeed and reduced pressure, and pressurization and post-decompression pressure are maintained to specific time.
According to patent documentation 2, the pressure of eliminating sharply by control method as above changes, can relax the ear function obstacle that changes the passenger who causes because of pressure sharply, can make effectively passenger recognize the variation of pressure, by pressurization and post-decompression pressure are maintained to specific time, can guarantee to carry out to change for eliminating by pressure the required time of action of swallowing that the ear that causes blocks, the ear that can eliminate thus passenger blocks and human discomfort.In addition, according to the record of patent documentation 2, in the time that elevator accelerates and slow down, the speed due to speed during than normal lifting is slow, and lift car rate of pressure change is around low, so be necessary to reduce the rate of pressure change in the lift car of stepped variation.
Formerly technical literature
Patent documentation
Patent documentation 1: Japanese kokai publication hei 7-112879 communique
Patent documentation 2: TOHKEMY 2009-137737 communique
Brief summary of the invention
The problem that invention will solve
According to patent documentation 1 and the disclosed compress control method of patent documentation 2, by give passenger swallow action the required time eliminate ear block., according to the compress control method of patent documentation 2, for example as shown in Figure 2 and Figure 5, making the atmospheric pressure state in lift car is being repeatedly to change between malleation and the state of negative pressure with respect to barometric pressure.That is to say, due to pressurization and the decompression of switching continually in lift car, so the structure of control setup and control method become complexity, have the problem that causes cost to rise.
Summary of the invention
In order to solve above-mentioned problem, in the present invention, in the time that elevator declines, at the first half (T<T0) of time of run, only form stair-stepping pressure control with the barotropic state in lift car, at the latter half (T>T0) of time of run, only form stair-stepping pressure control with the negative pressure state in lift car, therefore, pressure control device only need be implemented once to switch (switching to decompression state from pressurized state) and just can realize pressure control.
In addition, in the time that elevator rises, at the first half (T<T0) of time of run, only form stair-stepping pressure control with the negative pressure state in lift car, at the latter half (T>T0) of time of run, only form stair-stepping pressure control with the barotropic state in lift car.
Invention effect
According to the present invention, by the pressure in stepped the lift car of controlling during elevator lifting, can bring out passenger's the action of swallowing, can eliminate in early days ear and block and human discomfort.In addition, in elevator lifting, only need to implement barotropic state in a lift car and the switching between negative pressure state, so structure and control method that can the above-mentioned pressure controlled pressure control device of simple implementation.
Brief description of the drawings
Fig. 1 is the constructional drawing of the related lift facility of the first embodiment of the present invention.
Fig. 2 is the instruction diagram of the related pressure control mode of the first embodiment of the present invention.
The instruction diagram of the effect of supply ventilating fan when Fig. 3 is the related malleation of the first embodiment of the present invention.
The instruction diagram of the effect of pressure-modulation valve when Fig. 4 is the related malleation of the first embodiment of the present invention.
The instruction diagram of supply ventilating fan when Fig. 5 is the related negative pressure of the first embodiment of the present invention and the effect of pressure-modulation valve.
Fig. 6 is the instruction diagram of the related pressure control mode of the second embodiment of the present invention.
Fig. 7 is the instruction diagram of the comparative example of the related pressure control mode of the third embodiment of the present invention.
Fig. 8 is the instruction diagram of the related pressure control mode of the third embodiment of the present invention.
Description of reference numerals is as follows:
1 lift car
2 supply ventilating fans
3 pressure-modulation valves
4 pressure measuring units
5 pipe arrangements
6 control setups
Detailed description of the invention
The control method to lift car internal pressure involved in the present invention referring to embodiment and accompanying drawing.
The first embodiment
Fig. 1 is the constructional drawing of the related lift facility of the first embodiment of the present invention.As shown in Figure 1, the lift facility of the first embodiment by lift car 1, to one or more supply ventilating fan 2 that pressurizes and reduce pressure in lift car 1, link lift car 1 and supply ventilating fan 2 pipe arrangement 5, make to maintain pressure-modulation valve 3 that the pressure in the lift car of barotropic state or negative pressure state changes towards atmospheric pressure side by supply ventilating fan 2, measure the pressure measuring unit 4 of lift car 1 internal pressure and control setup 6 that the lift car internal pressure that records according to pressure measuring unit 4 is controlled supply ventilating fan 2 and pressure-modulation valve 3 forms.
Fig. 2 is the instruction diagram of the related pressure control mode of the first embodiment of the present invention.Lift car external pressure (barometric pressure) when Fig. 2 represents elevator decline and the time dependent of lift car air pressure inside change.Lift car external pressure is specified value in the time that elevator is positioned at the superiors, and along with the variation of elevator descending speed, rises according to the pressure curve of the shape of S slowly shown in Fig. 2.The controlled lift car air pressure inside of the lift facility 1 of staircase curve presentation graphs 1, in the substantial middle portion of travel of elevator (lift), taking near the time (T=T0) intersection point of the angled straight lines part of lift car external pressure and lift car air pressure inside as benchmark, from switching to the negative pressure lower than lift car external pressure higher than the malleation of lift car external pressure.In the first embodiment, T0 is set near the substantial middle of lift car driving time of run.
On the other hand, pressure control mode when elevator rises, centered by the vertical line of the central time T 0 of Fig. 2, the pressure control mode while decline with the elevator of Fig. 2 forms symmetric shape.
Situation while then decline taking the elevator shown in Fig. 2 describes as example.At the first half (T<T0) of time of run, from supply ventilating fan 2, air is sent in lift car 1, make lift car air pressure inside become barotropic state.As shown in Figure 3, the air output of supply ventilating fan 2 need to be set required air demand and the free air capacity of the pressure representing with near linear that the pressure curve A making in lift car 1 exceedes lift car external pressure for.At this, hold the near linear that the pressure curve of the S shape of lift car external pressure is approximated to straight line and obtain to be defined as the near linear of lift car external pressure the initiating terminal of the pressure curve of the S shape according to lift car external pressure and end.
Fig. 4 is the instruction diagram of the effect of the pressure-modulation valve while representing the related malleation of the first embodiment of the present invention.Measure lift car internal pressure by pressure measuring unit 4, control by control setup 6, calculating makes pressure curve B in the lift car 1 stepped aperture that changes required pressure-modulation valve 3 according to the rules, by regulating the aperture of pressure-modulation valve 3, make the air in lift car 1 suitably flow out to outside, make thus the stepped variation of pressure in lift car 1.
By above action, can be in the time that elevator declines, at the first half (T<T0) of time of run, pressure in lift car 1 is maintained to malleation, that is to say, by send into air from supply ventilating fan 2, pressurizeed in lift car 1 inside, can form stair-stepping pressure changing pattern.In above-mentioned control, iff carrying out pressure control by supply ventilating fan 2, due to bad response, be in fact difficult to accomplish to switch at short notice pressure.Therefore, pressure-modulation valve 3 and supply ventilating fan 2 are combined, guarantee to form rapidly the required responsibility of stair-stepping pressure changing pattern.Now, in order in advance the loss of pressure being caused by pressure-modulation valve 3 being compensated, preferably to adopt and there is the air quantity of high standard and the supply ventilating fan of static pressure 2.
The instruction diagram of supply ventilating fan when Fig. 5 is the negative pressure of latter half while representing that elevator declines and the effect of pressure-modulation valve.As shown in Figure 5, in the time that elevator declines, at the latter half (T>T0) of time of run, by the Bas Discharged in lift car 1, make the internal pressure curve C of lift car become negative pressure state by supply ventilating fan 2.Thus, the internal pressure curve controlled of lift car 1 can be become be less than the pressure representing with the near linear of lift car external pressure.
Then, measure the internal pressure of lift car by pressure measuring unit 4, and calculate the pressure curve D that makes in the lift car 1 stepped aperture that changes required pressure-modulation valve 3 according to the rules by control setup 6, control by the aperture that regulates pressure-modulation valve 3, can make appropriate air flow in lift car 1, can make thus the stepped variation of pressure in lift car 1.
By above action, in the time that elevator declines, at the latter half (T>T0) of time of run, pressure in lift car 1 is maintained to negative pressure, that is to say, discharge air and by working pressure control cock 3, can form stair-stepping pressure changing pattern from lift car 1 by supply ventilating fan 2.
As shown in Figure 2, in the first embodiment, in order to carry out stair-stepping pressure control, only need in the time that moving, elevator once switch the pressurization in lift car 1 and decompression.Malleation in lift car 1 and the switching time of negative pressure are that T0 is not must be in the central authorities of lift car lifting travel, as long as can guarantee malleation and the negative pressure of certain hour, this time (T0) can change between lift car lifting travel.
The second embodiment
Fig. 6 is the instruction diagram of the related pressure control mode of the second embodiment of the present invention.In Fig. 6, transverse axis represents the time, the longitudinal axis represents the lift car external pressure along with the change in location of the lift car 1 in elevator lifting, as mentioned above, according to the initiating terminal of the pressure curve of the S shape of lift car external pressure and end end, the pressure curve of the S shape of lift car external pressure is approximated to straight line and obtains near linear, this near linear is defined as to the near linear of lift car external pressure.
In a second embodiment, the interior zone stepped pressure changing pattern of lift car internal pressure being configured between pressure curve and the near linear of the S of lift car external pressure shape changes.Due to the stepped variation of lift car internal pressure, thus can be in passenger's ear blocked being reduced to suitable degree, give passenger and swallow the time of action, can effectively alleviate thus ear and block.In addition, compared with the pressure controling mode of the first embodiment shown in Fig. 1, can further dwindle as the difference between pressure curve and the stair-stepping pressure curve of the S shape of lift car external pressure.That is to say, due to the difference of pressure between the pressure and the pressure of extraneous air that have dwindled in lift car 1, so can reduce the flow of discharging from supply ventilating fan, and can reduce air-tightness, intensity and rigidity etc. that lift car 1 should have, can realize thus pressure control device cheaply.
The 3rd embodiment
Fig. 7 is the instruction diagram of the comparative example of the related pressure control mode of the third embodiment of the present invention.Fig. 8 is the instruction diagram of the related pressure control mode of the third embodiment of the present invention.
In the first embodiment, the stairstepping of lift car internal pressure as shown in Figure 7, is made up of the first pressure changing unit (pressure change rate P1/T1) and these two parts of the second pressure changing unit (pressure change rate is 0).Its objective is in the first pressure changing unit pressure is changed, in the second pressure changing unit, pressure is kept to certain, impel thus passenger to swallow action.
The inventor etc. are for the stairstepping of lift car internal pressure, using the difference of pressure (P1, P2) of the first pressure change rate (P1/T1) and the second pressure change rate (P2/T2), pressure transformation period (T1, T2) and a ladder as parameter, the relevance between above-mentioned factor and ear obstruction is proved.Consequently, found and can effectively relax the stairstepping that ear blocks.
In the 3rd embodiment, as shown in Figure 8, the pressure change rate (P2/T2) of the pressure change rate of the first pressure changing unit (P1/T1) and the second pressure changing unit is set as be not respectively two kinds of constant pressure change rates slowly and sharply of 0.In addition, by pressure change rate slowly the pressure change rate of the second pressure changing unit (P2/T2) be set as the pressure change rate of 0.1～0.5 times of the pressure change rate (P1/T1) of pressure change rate the first pressure changing unit sharply, and pressure transformation period separately (T1, T2) is set in respectively in the scope in 3～7 seconds.The known alleviation effects that can effectively improve ear obstruction by said method.
By the pressure change rate P1/T1 sharply in two kinds of pressure change rates slowly and being sharply arranged on to the crossover location (T=T0) of lift car external pressure curve and near linear, required air demand and free air capacity can reduce the switching of pressurizeing and reducing pressure in described lift car 1 time, and can make to switch and become convenient.
Its reason is, in the time carrying out above-mentioned switching, in the case of having applied the pressure change rate (P2/T2) as the second pressure changing unit of pressure change rate slowly, owing to making the pressure that adds decompression become large with respect to lift car external pressure, need moment to be transformed to decompression state from pressurized state, change the large equipment of speed so need to configure pressure, cause cost to rise.On the other hand, in the time carrying out above-mentioned switching, in the case of having applied the pressure change rate (P1/T1) as the first pressure changing unit of pressure change rate sharply, can reduce the required rate of pressure change of equipment.
Claims (5)
1. the control method of a lift car internal pressure, by making lift car internal pressure stepped variation repeatedly between two kinds of different pressure change rates of the lift car during elevator lifting, control thus the lift car internal pressure of the lift car during elevator lifting
The control method of described lift car internal pressure is characterised in that,
The pressure curve of this S shape of the external pressure of the described lift car that the pressure curve according to S shape during described elevator lifting is changed is approximated to straight line and obtains near linear, pressure with respect to this near linear and in the described lift car of stepped variation is only by forming than the high barotropic state of described near linear or the negative pressure state lower than described near linear, and only once switch between the buck stay of described elevator, described lift car internal pressure is switched to described negative pressure state from described barotropic state, or switch to described barotropic state from described negative pressure state.
2. the control method of lift car internal pressure according to claim 1, is characterized in that,
Make stepped variation in region that described lift car internal pressure surrounds between the pressure curve by described S shape and described near linear.
3. the control method of lift car internal pressure according to claim 1, is characterized in that,
The stairstepping that the pressure of described lift car internal pressure changes by pressure change rate P1/T1 sharply and than above-mentioned pressure change rate P1/T1 sharply slowly pressure change rate P2/T2 form, described in the size of the described P2/T2 of pressure change rate is slowly set as in the scope of 0.1～0.5 times of pressure change rate P1/T1 sharply.
4. the control method of lift car internal pressure according to claim 3, is characterized in that,
Pressure transformation period T1 while variation according to described pressure change rate P1/T1 sharply and the pressure transformation period T2 while changing according to the described P2/T2 of pressure change rate be slowly set in respectively 3 seconds～scope of 7 seconds in.
5. according to the control method of the lift car internal pressure described in claim 3 or 4, it is characterized in that,
Described pressure change rate P1/T1 sharply in described pressure change rate P1/T1 and the described P2/T2 of pressure change rate slowly is sharply configured in the crossover location place of external pressure curve and the described near linear of described lift car, reduces thus air demand and free air capacity required when the pressurization in described lift car and decompression are switched.
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| CN201610453048.7A CN106081766B (en) | 2012-12-13 | 2013-12-11 | The control method of lift car internal pressure |
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| JP2012-271979 | 2012-12-13 | ||
| JP2012271979A JP5970362B2 (en) | 2012-12-13 | 2012-12-13 | Elevator car pressure control method |
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| CN103863914B CN103863914B (en) | 2016-08-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270948A (en) * | 2014-07-16 | 2016-01-27 | 株式会社日立制作所 | Lift car internal air pressure control device for lift |
| CN106395567A (en) * | 2015-07-27 | 2017-02-15 | 株式会社日立制作所 | Lift and pneumatic control method thereof |
| CN110023222A (en) * | 2016-12-27 | 2019-07-16 | 株式会社日立制作所 | Lift appliance |
| CN111204639A (en) * | 2018-11-22 | 2020-05-29 | 株式会社日立制作所 | Air pressure control device in elevator car and method thereof |
| CN112777437A (en) * | 2019-11-08 | 2021-05-11 | 奥的斯电梯公司 | Elevator system including passenger ear comfort applications |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228744B (en) * | 2018-03-06 | 2021-10-19 | 富士达株式会社 | Method for setting air pressure control mode and elevator with air pressure adjusting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105270948A (en) * | 2014-07-16 | 2016-01-27 | 株式会社日立制作所 | Lift car internal air pressure control device for lift |
| CN105270948B (en) * | 2014-07-16 | 2017-12-26 | 株式会社日立制作所 | Pneumatic controller in the car of elevator |
| CN106395567A (en) * | 2015-07-27 | 2017-02-15 | 株式会社日立制作所 | Lift and pneumatic control method thereof |
| CN106395567B (en) * | 2015-07-27 | 2020-01-10 | 株式会社日立制作所 | Elevator and air pressure control method of elevator |
| CN110023222A (en) * | 2016-12-27 | 2019-07-16 | 株式会社日立制作所 | Lift appliance |
| CN110023222B (en) * | 2016-12-27 | 2021-05-25 | 株式会社日立制作所 | Elevator device |
| CN111204639A (en) * | 2018-11-22 | 2020-05-29 | 株式会社日立制作所 | Air pressure control device in elevator car and method thereof |
| CN111204639B (en) * | 2018-11-22 | 2021-10-01 | 株式会社日立制作所 | Air pressure control device in elevator car and method thereof |
| CN112777437A (en) * | 2019-11-08 | 2021-05-11 | 奥的斯电梯公司 | Elevator system including passenger ear comfort applications |
| CN112777437B (en) * | 2019-11-08 | 2023-08-29 | 奥的斯电梯公司 | Elevator system including passenger ear comfort application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103863914B (en) | 2016-08-17 |
| JP2014118220A (en) | 2014-06-30 |
| JP5970362B2 (en) | 2016-08-17 |
| CN106081766B (en) | 2018-08-07 |
| CN106081766A (en) | 2016-11-09 |
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