WO1986006515A1 - Dispositif regulateur de consommation de gaz - Google Patents

Dispositif regulateur de consommation de gaz Download PDF

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Publication number
WO1986006515A1
WO1986006515A1 PCT/HU1985/000075 HU8500075W WO8606515A1 WO 1986006515 A1 WO1986006515 A1 WO 1986006515A1 HU 8500075 W HU8500075 W HU 8500075W WO 8606515 A1 WO8606515 A1 WO 8606515A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
output
pipe
control unit
container
Prior art date
Application number
PCT/HU1985/000075
Other languages
German (de)
English (en)
Inventor
Tivadar Dolina
Lajos FÜLÖP
Original Assignee
Teta Tervezo^" És Tanácsadó Mérnöki Kisszövetkezet
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teta Tervezo^" És Tanácsadó Mérnöki Kisszövetkezet filed Critical Teta Tervezo^" És Tanácsadó Mérnöki Kisszövetkezet
Publication of WO1986006515A1 publication Critical patent/WO1986006515A1/fr

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
    • G05D16/204—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged in parallel

Definitions

  • the invention relates to a device by means of which all technical control tasks / measurement, remote signaling, control, regulation / which are connected with the gas consumption can be solved, regardless of whether the supply of the gas consumer devices from gas lines with consumption pressure or higher pressure or from containers with dripping liquid gas or high pressure gas.
  • gas consumers are supplied from gas lines that have been removed / from the public network / and in other cases from containers with dripping, compressed, or absorbed gas.
  • the control tasks associated with gas consumption must be solved.
  • the gas supply used to be exclusively with consumption pressure.
  • the technical control task was to measure the amount of gas consumed by the consumer, or to provide protection for larger consumers against the pressure drop occurring in the supply network or against errors occurring in the consumer network / e.g. pipe break / e.g. by using Quick release fasteners.
  • the gas supply from the public network with a higher pressure / medium pressure network for example 6 bar / compared to the consumption pressure, has become more and more widespread.
  • control task is performed by separate pressure regulators / Building pressure regulator / solved.
  • high pressure gas / e.g. oxigen-, nitrogen, etc./, or absorbed gas / e.g. acetone absorbed in acetone dissous gas /
  • the control task is first Line in pressure control, in many cases also in measurement. In the higher-level economy using gas as an energy source, further control-related tasks occur in particular for large consumers.
  • the peak duty appears as a tax task, the change in tariff associated with the different tariff in different periods / with a reduction or surcharge / exchange of the measuring device /, in the case of lack of energy, the consumption limit, as a control task the increased protection against pressure drop and pipe defects / in the sense that the emergency shutdown should be understood as a regulation to zero /, a targeted energy industry continues to raise the various tasks of remote measurement and remote reporting to an ever increasing extent.
  • a number of / separate / devices based on different principles are known for solving the individual tasks, but technical solutions are also known which contain new solutions for the appropriate interconnection of the devices solving the individual tasks. Attempts have been made to summarize some of the tasks listed and to solve them by a single institution. For example, from DE-PS 20 15 555 a device is known with which both the function of the pressure control and the function of the closure / quick lock / which takes place depending on the pressure can be realized. A further solution for regulating the pressure is known from D ⁇ -AS 2622703, which represents a new pneumatic solution and contains, as a sensing element, a diaphragm known per se which is prestressed by a spring.
  • D ⁇ -PS 27 - + * + 779 for simultaneous, electromechanical temperature and pressure control
  • D ⁇ -PS 29 37 978 describes an electrically controlled pressure regulator that can also be used as a closure.
  • a room with a higher pressure / line, container / with a room with a lower pressure / line, container / is connected via two lines, which have a different permeability and can be closed by a solenoid valve, the coils of Solenoid valves are connected to a timer.
  • the device under the effect of the pressure in the room with lower pressure, lets "gas impulses" pass through the room with higher pressure, the duration of which is controlled by the timer, and ensures by determining the frequency of these pulses a constant pressure in the room with lower pressure, this device of course also functions as a closure element when the electrical energy is switched off.
  • the object to be achieved with the invention is to create a device which - provided with a corresponding control unit known per se - is suitable, with the aid of the same technical measures, to solve all of the control tasks listed, which thus perform the functions of printing controller, the gas measurement, the lower and upper quick release, the peak limiter, the power limiter, the tariff change, etc., and also their function can be remotely controlled and at the same time is suitable for digital remote reporting of any current or time-integrated value.
  • the invention is based on the knowledge that if the space with a higher pressure / line, container / with the space with low pressure / line, container / on the one hand not via two, but via several lines, each provided with a controlled pipe closure, their number n amounts, is connected, the transmission capabilities of these lines not only differ from one another, but are related to each other in a known and certain functional connection, and the opening and closing of the controlled pipe closures does not take place by a pulsing-functioning timer, but according to a known and certain program / dependency / of a control unit which is controlled by a pressure sensor which is known per se and which detects the pressure of the room at a lower pressure, with a corresponding choice of the two Connections can be achieved in that when the pressure value of the room is maintained at a lower pressure at a constant value of each individual flow rate, one position of the controlled valves corresponds.
  • control unit when increasing the pressure of the room with lower pressure, the control unit reduces the / total / flow cross-section in the steps corresponding to the program and vice versa, when reducing the pressure increases this cross-section, even when using a relatively small number n of lines connected with Pipe closures are provided, a digitally functioning pressure regulator can be implemented in fine steps.
  • the display of the current position - the valves are in a clear functional connection with the current gas flow is therefore suitable for their measurement
  • display - the temporal integral of the current position of the valves is in a clear functional connection with the total gas volume flowing through and is therefore suitable for their measurement
  • an external blocking of the function of one or more / preferably the largest / controlled pipe closure / pipe closures / leads to a peak limitation
  • the derivation / the derivative / the current position of the valves as a value is identical to the change in the quantity flowing through, ie shows a current value of the derivative which exceeds a certain value a sudden increase in consumption and is therefore suitable for displaying a hazard situation / control of the quick-release fastener, for example in the event of a pipe break /, in the case of a consumption meter designed with the use of the time integral
  • the program can be switched to change tariffs
  • the tariff change can also be carried out by switching of the measuring device used for the summation of the integrated value can
  • FIG. 1 shows a basic functional diagram of a device whose operation is carried out by a public network, the pressure of which is higher than the consumption pressure
  • FIG. 2 shows a basic diagram of a device operated by a gas container or a group of containers
  • FIG. 2 shows a basic diagram of a device actuated by a gas container or a group of containers
  • FIG. 3 shows a diagram of a device which is provided with separately controlled valves
  • FIG. 4 shows a diagram of a device which is provided with a pipe closure system combined in one block
  • Fig. 5 shows another embodiment of a
  • FIG. 6 illustrates a block diagram of a greenest possible embodiment of the control unit.
  • a pipe 15 connected to the supply network with higher pressure is provided with a container 13, which connects to a pipe 14 leading to the consumer devices, with pipe closures 1, 2, 3 and 4 and with throttles 5, 6, 7 and 8 provided pipes 9, 10, 11 and 12 in connection. 3 in the formation of the pipe 15 only the strength requirements of the facility need to be considered.
  • the container 13 can be part of this pipe 5 .
  • be network ie for example a simple pipe branch.
  • the number of tubes 9, 10, 11 and 12 is selected as a function of the desired fineness of the control steps, the number of these tubes - and also the number of structural parts located on them - can therefore be varied; Fig. 1 provided four tubes as an example.
  • the throttles 5, 6, 7 and 8 are not necessarily to be designed as separate structural parts, the amount of gas flowing through in one time unit 5 can be determined by the cross section of the tubes 9-12, and by the flow cross section of the tube closures 1-4.
  • the use of a variable throttle - as illustrated in the figure - is advantageous.
  • the changeability of the throttle is of course also understood to mean the interchangeability of the throttle element.
  • the state of the pipe closures 1-4 is determined by means of the lines of action 16-19 by a control unit 20.
  • the action lines 16-19 can be formed by a mechanical operating device, in which case a manually adjustable pressure regulator is implemented when a corresponding control unit 20 is used.
  • a manually adjustable pressure regulator is implemented when a corresponding control unit 20 is used.
  • the embodiment of the invention shown in FIG. 2 is a device which is actuated on the one hand by a gas container or a gas container group and on the other hand the device is actuated as a function of the pressure prevailing in the container 13.
  • the gas container 21-24 - in Figure 2 as gas cylinders -. Are connected in two groups to a shuttle valve 25 so the containers that 21 and 22 connect to one side of the shuttle valve 25 and the 'container 23 and 24 on the other side .
  • a pressure sensor 26 is used to detect the instantaneous pressure prevailing in the container 13, the signal of which is connected to the control unit 20 via the action line 27.
  • FIG. 1 In the embodiment shown in FIG.
  • a pressure sensor 29 is connected to the pipe 15, the signal on the line of action 30 of which is connected to the control unit 20, and a temperature sensor 31 whose signal on the line of action 32 is connected to the control unit 20 is.
  • a pipe 28 branching off from the container 13 is connected to a pressure sensor 26, the signal of which is passed on the line of action 27 into the control unit 20.
  • the control unit 20 is designed in such a way that it is able to operate via the
  • Line of action 34 to receive external control signals, respectively to forward information signals to a desired location via the line of action 33 via the current position.
  • the controlled locking closures are replaced by a switch 38 realized in a 31ock, which is known per se and is designed such that the number of pipe closures and their function program are determined by the design of the switch are, while the / total / flow cross-section of the lines connecting the valves is determined by the position of the axis 37 of the switch 38 / angle of rotation /. / For example, five lines were shown in this figure. /
  • pipe closures 1-4 are not inserted into the lines, but only the throttles 5-8 are provided.
  • the pressure sensor 26 is connected to the amplifier 35.
  • the amplifier 35 is connected to a motor 36 which is suitable for rotating the axis 37 of the switch 38.
  • the amplifier and the motor can be operated electrically, pneumatically or even hydraulically.
  • the motor 36 is controlled by the control unit 20, in this exemplary embodiment the control unit contains the required amplifier.
  • the control unit is followed by setpoint signal images 39 and 40, in which the desired setpoint control signals can be set. Five lines are also provided here, for example, between the switch 38 and the container 13.
  • control unit 20 shows a preferred embodiment of the control unit 20.
  • the consumption pressure / secondary pressure /, the tariff used and the largest amount that can be consumed should also be able to be influenced from the outside, and remote reporting of the instantaneous / within a time unit / gas consumption is also desirable.
  • a differential image 41 Connected to a differential image 41 are the pressure sensor 26, the pressure / secondary pressure / detecting pressure sensor, the desired signal images 39 determining the desired value of the pressure and the line of action 51 of the remotely controllable control signal.
  • the output signal of the difference generator 41 is led to a code generator 42.
  • the difference image 52 is connected to the pressure sensor 29, which detects the supply pressure, and to the desired signal image 40, which is used to set the desired pressure value, while the
  • Output signal of the difference generator 52 is fed to the Kode ⁇ generator 42.
  • the derivative / derivative / of the output signal of the difference generator 41 generated by a differentiating unit 43 is led to the code generator 42 together with the output signal of the difference generator 52.
  • the derivation / derivative / of the output signal of the pressure sensor 29 is likewise conducted to this via a delay element 49, this derivation being generated by the differentiating unit 48.
  • the signals of the pressure sensors 26 and 29, whose output signal is led to an arithmetic unit 44, are connected to the difference images 54.
  • the output signal of the temperature sensor 31 is also passed to the arithmetic unit 44, the output signal of the arithmetic unit 44 being the
  • Input signal of a further arithmetic unit 45 forms, the output signal and the output signal of a clock generator 46 are fed to a counter 47. At the counter 47 are still one of the output signals of the code generator 42, as well as the
  • the line of action 55 is connected to the counter 47 for remote reporting of the value of the counter 47.
  • the line of action 50 of the power limitation signal is also connected as an input to the code generator 42, while the further outputs of the code generator 42 are formed by the lines of action 16-19, which control the pipe closures 1-4 / FIG. 1-3 /.
  • the value shown by the pressure meter, which is attached to the container 13, is the initial value of the setting, but - in particular in the case of chemical technology processes - another specific value can also form the initial value.
  • the gas permeability of the pipes 9-12 is regulated in stages using the throttles 5-8 in accordance with a predetermined function, the control unit 20 specifying which of the pipe closures 1-4 are in the open state and which are in the closed state.
  • the use of a binary function is the most obvious for the function of the permeability, in this case the permeability of each tube 9-12 is just twice the permeability of the previous tube, as a program of the control unit 20 is the application of binary codes are also obvious.
  • 2 different states of the device are possible. Since a possible state is the closed / ie "zero" / position underneath, • it follows that the permeability of the first pipe is the
  • the control unit 20 compares the signal of the pressure sensor 26 arriving on the action line 27 with a desired value programmed in advance and starts the pipe closures 1-4 in accordance with the sign of the deviation of these values from one another in accordance with the predetermined program to open or close in sequence for as long as the deviation persists. Should the consumption change, the pressure in the container 13 also changes, but in the opposite sense, and the control unit 13 starts operating again.
  • the consumption pressure is either predetermined or can be changed by programming the control unit 20.
  • the regulation can also take place here according to a binary function and a program or according to any other desired characteristic.
  • construction elements 21-25 The function of construction elements 21-25 is generally known, so it is only mentioned for the sake of completeness; in the position of the change-over valve 25 shown in the figure, the consumption takes place from the containers 21 and 22 connected in parallel. When these containers 21 and 22 become empty, the change-over valve 25 switches over to the containers 23 and 24 and reports the fact of the changeover in a visible manner . There is thus the possibility of exchanging the containers 21 and 22 during operation, which can ensure continuous operation.
  • the signal from the pressure sensor 29 and the temperature sensor 31 enable the control unit 20 to be designed in such a way that it performs its function in the “cubic meter” unit that forms the basis of the fee calculation.
  • the "binary number" determined by the current state of the pipe closures 1-4 corresponds to the current consumption in terms of the fee calculation. This results in the possibility that when this number is reported remotely via the line of action 33, the correct consumption value with regard to the charges can be read at the other end of the line of action, or if this signal is forwarded to a summing unit / counter / integrated in time, can be on the counter the consumption which can be evaluated with regard to the calculation of fees can be read off.
  • a value of the derivative / derivative / signal of the pressure sensor 26 which exceeds a certain value represents an error signal since a suddenly falling secondary pressure indicates a leakage / pipe breakage / which has arisen in the device.
  • the control unit 20 then switches off the pipe closures 1-4, and the device then fulfills without further notice separate organs the function of the upper quick lock.
  • the pressure sensor 29 reports the pressure prevailing in the pipe 15. If this pressure is less than the pressure prescribed by the safety regulations, and the control unit 20 then closes the pipe closures 1-4, the device fulfills the function of the lower quick closure.
  • the line of action 34 can transmit peak-limiting, power-limiting or tariff-changing control signals / or all three / to the control unit 20.
  • the fact was taken advantage of the fact that such pipe closure series combined in one block are known which are used for the program-based switching of pipes connecting a common connecting line with a number depending on their type, whereby the . the current position of the entire block represents a function of the position of the axis 37 / angle of rotation /.
  • the embodiment shown in FIG. 4 functions using such a device, the signal from the pressure sensor 26 using the amplifier 35 and the motor 36 driving the axis 37 of the switch 38.
  • the signal sensor 26 must of course be given a signal with the correct sign, and this must be amplified with the correct sign by the amplifier 35, ie. a positive or negative signal in relation to a signal which is proportional to a desired value is required that is amplified and determines the direction of rotation of the motor /.
  • This embodiment can be implemented primarily with the aid of pneumatic elements.
  • control unit 5 functions as the axis of the switch 38 driving motor 36 actuated by the control unit 20.
  • control unit also contains the amplifier.
  • the consumption pressure / secondary pressure / and on the setpoint generator 40 the still permitted minimum primary pressure can be set on a setpoint generator 39.
  • the pressure sensor 26 generates a signal proportional to the instantaneous pressure.
  • the correct sign instruction signal Differenz ⁇ Bilders 41 actuates the code generator 42, ie nietagen to provide these in pressure drop of the pressure prevailing in the reservoir 13 pressure to according to the input program to the opening of additional pipe closures 1-4 of the effect lines 16-19 a signal when the pressure is increased, however, in the opposite sense.
  • the opening upon a limit signal arriving via the line of action 50, the opening only reaches a certain value / peak limit or power limit as a control /.
  • the signal from the pressure sensor 29 and the pressure sensor 26 is passed to the difference images 54, its output signal and that Output signal of the temperature sensor 31 serve as a basis for the arithmetic unit 44 to perform a function correction which is based on the signal of the Code generator 42 is required to convert between the physical amount and the metering amount / normal cubic meter.
  • the arithmetic unit 45 brings the transformed function value into such a state that the actual charge calculation consumption unit can or can be obtained by comparing it with the signal of the code generator 42. a signal proportional thereto, the digital value of the counter 47 added to the signal of the clock generator 46.
  • the frequency of addition is to be determined on the basis of the dynamics of the fluctuations in consumption.
  • the counter 47 carries out the possible tariff change on a signal arriving via the action line 53.
  • the pressure waves / shocks / arriving in the supply line 15 are detected by the differentiating unit 48, the signal of which, however, can only act on the code generator 42 via the delay element 49 in order to ensure that only brief / non-hazardous / pressure waves occur during operation not unnecessarily interfere with the device, but against long-term pressure increase the consumer is protected by the device.
  • the instantaneous consumption pressure or the added quantity / ie the position of the meter / remote can be reported via the line of action 55 as desired.

Abstract

Le dispositif comporte un tuyau (15) raccordé à la source de gaz, un tuyau (14) raccordé à l'appareil consommateur à approvisionner, et éventuellement un récipient (13) raccordé au tuyau (14). Entre le tuyau (15) dont la pression est plus élevée et le tuyau (14) dont la pression est plus faible et/ou le récipient (13), sont prévus n tuyaux (9 à 12) avec une capacité de passage modifiable selon une relation fonctionnelle déterminée, lesquels sont pourvus d'obturateurs (1 à 4) manoeuvrables selon un programme prédéterminé.
PCT/HU1985/000075 1985-04-30 1985-12-19 Dispositif regulateur de consommation de gaz WO1986006515A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU165285A HU195346B (en) 1985-04-30 1985-04-30 Device for controlling use of gas
HU1652/85 1985-04-30

Publications (1)

Publication Number Publication Date
WO1986006515A1 true WO1986006515A1 (fr) 1986-11-06

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ID=10955524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1985/000075 WO1986006515A1 (fr) 1985-04-30 1985-12-19 Dispositif regulateur de consommation de gaz

Country Status (3)

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EP (1) EP0220195A1 (fr)
HU (1) HU195346B (fr)
WO (1) WO1986006515A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001539A1 (fr) * 1991-07-10 1993-01-21 Conservair Technologies Systeme de regulation d'air comprime
AT400075B (de) * 1991-08-06 1995-09-25 Vaillant Gmbh Verfahren zum einstellen eines mit einem brenner versehenen gasheizgerätes durch vorgabe eines gasdurchsatzes und einrichtung zum einstellen dieses gasdurchsatzes
GB2333614A (en) * 1998-01-23 1999-07-28 Secretary Trade Ind Brit Flow controller
EP1772663A1 (fr) 2005-10-10 2007-04-11 Air Products and Chemicals, Inc. Instalation de soutirage de gaz
FR3036629A1 (fr) * 2015-05-29 2016-12-02 Nicolas Pourtaud Dispositif de regulation de la concentration d'un gaz dans un liquide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108958305A (zh) * 2017-05-23 2018-12-07 北京航天计量测试技术研究所 一种8421编码可控流量高压气体压力精确控制结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108285A (en) * 1981-09-15 1983-05-11 Thermco Products Corp Gas flow control system
GB2129170A (en) * 1982-10-21 1984-05-10 Secr Defence Improvements in or relating to pressure controllers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108285A (en) * 1981-09-15 1983-05-11 Thermco Products Corp Gas flow control system
GB2129170A (en) * 1982-10-21 1984-05-10 Secr Defence Improvements in or relating to pressure controllers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELEKTRONIK, Band 1, herausgegeben 1981, siehe Seiten 73-76. *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001539A1 (fr) * 1991-07-10 1993-01-21 Conservair Technologies Systeme de regulation d'air comprime
AT400075B (de) * 1991-08-06 1995-09-25 Vaillant Gmbh Verfahren zum einstellen eines mit einem brenner versehenen gasheizgerätes durch vorgabe eines gasdurchsatzes und einrichtung zum einstellen dieses gasdurchsatzes
GB2333614A (en) * 1998-01-23 1999-07-28 Secretary Trade Ind Brit Flow controller
GB2333614B (en) * 1998-01-23 2002-04-10 Secretary Trade Ind Brit Flow controller
EP1772663A1 (fr) 2005-10-10 2007-04-11 Air Products and Chemicals, Inc. Instalation de soutirage de gaz
FR3036629A1 (fr) * 2015-05-29 2016-12-02 Nicolas Pourtaud Dispositif de regulation de la concentration d'un gaz dans un liquide
WO2016193586A1 (fr) * 2015-05-29 2016-12-08 Nicolas Pourtaud Dispositif de régulation de la concentration d'un gaz dans un liquide
US10888828B2 (en) 2015-05-29 2021-01-12 Nicolas POURTAUD Device for adjusting the concentration of gas in a liquid

Also Published As

Publication number Publication date
HU195346B (en) 1988-04-28
HUT40270A (en) 1986-11-28
EP0220195A1 (fr) 1987-05-06

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