JP2006133158A - Gas shutoff device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas shutoff device which integrates gas flow rate and displays the integrated gas amount corresponding to the flow rate of gas equipment. <P>SOLUTION: The gas shutoff device consists of: the flow rate detection means 1 for measuring the consuming flow rate of gas equipment; the flow rate registration means 2 for registering the measured flow rate as the flow rate of the gas equipment; the flow rate class selection means 3 capable of selecting the range of the consuming flow rate registered value and the consuming flow rate as the flow rate class in an arbitrary flow range; the flow rate class determination means 4 for determining the flow rate class by comparing the flow rate value of the flow rate registration means 2 with the flow rate class selection means 3; and the plurality of integration means 5 for every flow rate class for integrating the consumed amount of the registered flow rate when determined together with the range of the predetermined flow rate classification with the flow rate class determination means 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gas cutoff device capable of calculating an integrated value for each appliance based on gas flow rates used by various gas appliances.

  FIG. 3 shows a conventional gas cutoff device, and specifically shows the internal configuration of the multi-gas meter main body 31 and the display 32. A mechanical metering unit 33 that measures a gas flow rate flowing through a gas circulation unit (not shown), and a machine that is mechanically connected to the mechanical metering unit 33 and counts a normal integrated value of the gas flow rate based on a measurement result. And an electronic normal integrated value counter 35 for counting the normal integrated value of the gas flow rate based on the measurement result of the mechanical measuring unit 33, and a control unit 36 composed of a microcomputer. Yes.

  Furthermore, the multigas meter body 1 has a built-in multigas counter. The multigas counter of this example includes an electronic long-time integrated value counter 37 operating under the control of the control unit, a large flow rate counter 38, A specified time integrated value counter 39 and a specified temperature integrated value counter 40 are provided.

  The integrated values of these electronic integrated value counters 35, 37 to 40 can be transmitted to the display unit 32 via the communication unit 41 operating under the control of the control unit 36.

  The display 32 includes a control unit 42 composed of a microcomputer, a liquid crystal display unit 43, a communication unit 44 that receives various integrated values from the multigas meter main body 31 side, and display switching between the liquid crystal display unit 43. A display switching button 45 for performing the above is provided.

  For example, according to the operation of the display switching button 45, the integrated value displayed on the liquid crystal display unit 43 is cyclically switched in the order of the long-time integrated value, the large flow integrated value, the specified time integrated value, and the specified temperature integrated value. (For example, refer patent document 1).

  Next, a detailed configuration will be described. First, the five integration counters 35 and 37 to 40 will be described. The long-time integrated value counter 37 has been used for a certain amount of time at a gas flow rate above a certain flow rate so that the unit price of the gas when using a specific gas appliance such as GHP is an extra charge. In this case, the total value of the total gas flow is counted.

  The integrated value Cs in the use state in which the gas flow rate is Q or more is stored. Next, when the gas flow rate falls below the set value Q, the integrated value Ce at that time is stored. When the continuous time t is longer than the predetermined time T, the integrated value (Ce−Cs) within the time t is integrated into the long-time integrated value counter 7.

  However, if the duration t is less than the predetermined time T even if the flow rate is equal to or higher than the predetermined flow rate, the integration is not performed. The large flow rate integrated value counter 38 counts the integrated value of the gas flow rate above a certain flow rate so that the unit price of gas when using a specific gas appliance such as a gas water heater is an extra charge. When the gas flow rate exceeds the set value Q, the integrated value Cs at that time is stored, and when the gas flow rate falls below the set value Q, the integrated value Ce is stored, and (Ce−Cs) is set in the large flow rate integrated value counter 38. Calculate and add.

  The specified time integrated value counter 39 counts the integrated value of the specified time in order to make the metered unit price of gas at night, weekends and holidays, and the specified season different. For example, the integrated value of the gas flow rate in the specified time zone defined at times t1 and t2 is counted in the specified time integrated value counter. The integrated value Cs at the designated time t1 is stored. Next, the accumulated value Ce at that time when the designated time t2 is reached is stored. Next, an integrated value (Cs−Ce) from time t1 to time t2, which is a specified time zone, is added to the specified time integrated value counter.

  These specified times can be set by the built-in timer and built-in calendar. The specified temperature integrated value counter 40 counts the integrated value at a specific temperature in order to make the gas unit price a separate charge at low temperatures (when using GHP and gas stove) and at high temperatures (when using GHP). For example, when it is assumed that cooling is used as in summer, the specified temperature integration counter 40 integrates the integrated value of the gas flow rate used when the outside air temperature is equal to or higher than the specified temperature T.

For example, when the specified temperature T is exceeded, the integrated value Cs at that time is stored, the integrated value Ce when the temperature falls below the specified temperature T is stored, and (Cs−Ce) is added to the specified temperature integration counter 40.
JP 2002-310772 A

  However, the conventional configuration has the following problems. Accumulate long time, large flow rate, specified time, and specified temperature integration when the gas usage over the specified flow rate is detected, and long time integration further increase when using more than the specified time. When the gas flow is used at the same time and exceeds the specified flow rate, it is also integrated, and the gas company is promoting gas appliances to switch to gas appliances with a large amount of combustion. The advantage of using a large gas appliance cannot be said to be sufficient, and it is a function that can be integrated separately if the amount of gas is simply increased, and integration for appliances is not considered.

  This invention solves the said subject, and provides the gas interruption | blocking apparatus which detects the usage flow rate for every tool used, and integrates | accumulates accurately and accurately as the usage-amount of a gas tool.

  In order to solve this problem, the present invention measures the flow rate of the device used by the flow rate detection means, registers it as the flow rate of the used device in the flow rate registration means, and divides the flow rate registration value and the flow rate range of use into the flow rate classification in an arbitrary flow rate range. Compare the flow rate value of the flow rate registration means with the flow rate classification of the flow rate selection means, perform flow rate determination with the flow rate determination means, and determine when the flow rate determination means is within the predetermined flow rate range It is composed of a plurality of flow rate integrating means for integrating the amount of use of the corresponding flow rate registration value.

  As a result, even if a plurality of gas appliances are held at the customer's house and a low flow rate appliance such as a gas table or a gas fan heater is connected downstream, or a large flow rate appliance such as a GHP or a water heater is connected, When the flow rate value detected and registered by the detection means falls into any flow value range and falls under any of the flow rate categories selected as any individual integration target, the flow rate registered value gas is sent to any flow rate integration means. Since the amount is accumulated according to the amount used, it can be accurately accumulated according to the actual usage of the device, so that the integrated value can be obtained and displayed accurately and accurately using a plurality of devices.

  According to the gas shut-off device of the present invention, the flow rate range used by the consumer is set in advance by dividing it into a plurality of flow rate ranges on the assumption that the flow rate used by the gas appliances possessed, and the flow rate detecting means is used. When the usage flow rate is obtained and registered, the judgment is made as to whether or not the corresponding flow rate category is applied, and by integrating the corresponding flow rate category integration means, the integrated value of the usage flow rate for each device can be found. As a result, the benefits of discounting a certain amount of gas charges can be communicated to gas consumers as a sales measure. It can be communicated to the home, and according to the equipment owned by the consumer, the flow rate classification can be arbitrarily set according to the actual usage, and there is a disadvantage that appropriate sales measures cannot be taken according to the amount of equipment used. It can be determined accurately and precisely the integrated value of the use gas appliance, and usability and reliability can display an effect of remarkably improved.

  In the first invention, a flow rate detecting means for detecting a flow rate, a flow rate registering means for registering and storing as an instrument flow rate from the flow rate detected by the flow rate detecting means, and a use flow range can be selected as a flow rate classification in an arbitrary flow rate range. The flow rate classification selection means, the flow rate determination means for comparing the flow rate value of the flow rate registration means with the flow rate classification of the flow rate selection means, and the flow rate classification determination means, and the flow rate classification determination means corresponding to the predetermined flow rate classification range The flow rate registration value includes a plurality of flow rate integrating means for integrating the use amount of the registered flow value, and a display means for displaying the integrated value and the like.

  If a low flow rate device such as a gas table or a gas fan heater or a large flow rate device such as a GHP or a water heater is connected to the downstream side where the gas shut-off device is installed, the flow rate of the device used by the flow rate detection means The flow rate value is registered and the flow rate category is selected in advance for each operating flow rate range from the possessed equipment, the flow rate value registered is compared with the selected flow rate category, and the flow rate value is entered. If it is, add it to the corresponding flow rate category. As a result, the integrated amount corresponding to the amount of use for each instrument that is held is obtained, and at the same time, the total meter reading value of the gas amount used is obtained. This can lead to the benefits of gas consumers, leads to the sales of gas companies' equipment and gas, and can accurately integrate and display the integrated value according to the flow rate used by the equipment. improves.

  Furthermore, the second invention monitors a flow rate detecting means for detecting a flow rate, a flow rate registering means for registering and storing as an instrument flow rate from the flow rate detected by the flow rate detecting means, and an abnormal usage time of the flow rate value of the flow rate registering means. A usage time boundary segment storage means for preliminarily storing a usage time cutoff flow rate segment, a flow rate classification selection means capable of arbitrarily selecting a flow rate category of the usage time boundary segment storage means, and a flow rate value of the flow rate registration means. A flow rate classification determination unit that performs flow rate classification determination in comparison with the flow rate category of the flow rate category selection unit, and a plurality of flow rate classifications that integrate the usage of the corresponding flow rate registration value at the time of determination with the flow rate determination unit. It comprises integrating means and display means for displaying integrated values and the like.

  If a low flow rate device such as a gas table or a gas fan heater or a large flow rate device such as a GHP or a water heater is connected to the downstream side where the gas shut-off device is installed, the flow rate of the device used by the flow rate detection means In addition to registering the flow rate value, select the appropriate flow rate classification from the flow rate range divided by the boundary flow rate and the use flow rate range of the possessed equipment in advance. The flow rate value registered with the flow rate is compared with the selected flow rate category, and if it falls within the relevant flow rate category range, it is integrated into the relevant flow rate category.

  As a result, the integrated amount corresponding to the amount of use for each instrument that is held is obtained, and at the same time, the total meter reading value of the gas amount used is obtained. This leads to the benefits of gas consumers, and leads to the sales promotion of equipment and gas for gas companies, and the integrated value according to the flow rate of use of the equipment can be accurately accumulated, so that the usability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In FIG. 1, reference numeral 1 denotes a flow rate detecting means for measuring the gas flow rate of the instrument. This flow rate detection means 1 is a membrane type measurement unit that measures each unit measurement volume, an ultrasonic method that detects a flow rate by a difference in ultrasonic propagation time, a method that detects by a resistance change due to a flow rate change using a hot wire sensor, etc. Can be considered.

  Reference numeral 2 denotes a flow rate registration means for registering the flow rate value detected by the flow rate detection means 1 as an instrument flow rate. If the flow rate has changed since the previous measurement, the flow rate detected periodically is measured again, and the change flow rate is obtained and registered from the flow rate before the change.

  Reference numeral 3 denotes a flow rate category selection means for selecting an arbitrary flow rate range as a flow rate category for integrating the usage amount for each appliance. Therefore, an arbitrary flow rate range can be selected and set for each of a plurality of instruments.

  4 is a flow rate classifying means, and an arbitrary flow rate range is previously selected by the flow rate category selecting means 3 as a flow rate range of the water heater, for example, and the flow rate value registered by the flow rate registering means 2 enters the flow rate range. It is determined whether or not.

  Reference numeral 5 denotes a flow rate-by-flow rate accumulating unit that accumulates the usage amount of the registered flow rate when the appliance flow rate registered by the flow rate category determining unit 4 is in the corresponding flow rate range category. There may be a case where there are a plurality of flow rate-by-flow rate integrating means 5 in a flow rate range selected as a plurality of normal flow rate categories.

  6 is a meter reading integration means for integrating the total usage of gas appliances, 7 is a display means for displaying the total gas usage of the meter reading integration means 6 and the integrated value for each flow rate of the flow rate integrating means 5, and 8 is for abnormality determination. The judgment time etc. which distinguish the abnormal flow value such as hose disconnection and the normal use time of gas appliances by dividing the flow range that can be used by the gas shutoff device and having the use time set value corresponding to each flow range The flow rate value obtained by the flow rate registration means 2 is compared with the set abnormality determination value when using the gas appliance, and it is determined whether or not it is in an abnormal use state.

  For example, when a connection hose to an appliance such as a stove is mistakenly disconnected, an abnormal flow rate flows, but the determined flow rate value is compared with an abnormality determination value by the abnormality determination means 8 to determine whether it is abnormal. Alternatively, a usage time cut-off table that defines a usage time limit corresponding to when the appliance such as a stove is used much longer than the maximum usage time for normal use is stored. Monitor the flow value registered in.

  9 is a shut-off means, which outputs a shut-off signal when it is judged abnormal from the abnormality judging means 8 and shuts off the gas flow path. When the abnormality determining means 8 determines that the gas use state is abnormal and the shut-off means 9 is driven, the shut-off state and the content of the shut-off are displayed on the liquid crystal display element of the display means 7 and the safety monitoring of the gas is performed. The center is notified to the gas company by communication means 10 such as a telephone line.

  Next, the operation of the above configuration will be described. Usually, it connects to a pressure regulator with a high-pressure hose from an LPG container, and a gas shut-off device is installed downstream from the gas consuming appliance. Although the appliances held by customers vary, generally a gas heat pump air conditioner (GHP), a water heater, a gas table, a gas fan heater, or the like is connected to the downstream side of the gas shutoff device.

  In recent years, competition for electricity and gas energy has become fierce, and the demand for environmentally friendly clean gas energy and demand expansion has increased.

  When the flow rate is detected by the flow rate detection means 1 every time the instrument is used, the flow rate registration means 2 registers the flow rate as a new appliance flow rate based on the difference from the flow rate before detection. Multiple units can be registered even during simultaneous use.

  Then, the flow rate range to be used from the appliances owned by the consumer is selected and set as the flow rate category in the flow rate category selection means 3 in advance. The flow range can be set at an arbitrary flow rate.

  Compared with the flow rate value registered in the flow rate registration means 2 after the start of use of the appliance and the flow rate range of the flow rate selection means 3, the flow rate determination means 4 determines whether or not the flow rate is within the predetermined flow rate range. To do. When it falls within a predetermined flow rate range, the corresponding device is integrated into the flow rate-based integration means 5.

  At this time, if the flow rate division is divided for each instrument, the flow rate is separately integrated in the corresponding flow rate-specific integration means 5. The total use flow rate of the instruments being used at the same time is integrated in the meter reading integration means 6. From the usage amount of the meter-reading integration means 5, the monthly gas charge of the consumer can be calculated.

  Further, the total sum of the flow rate integrating means 5 is less than or equal to the integrated value of the meter-reading integrating means 6, and the amount of use for each appliance with respect to the total amount used can be known.

  That is, the gas company reads out the total usage amount and the integrated amount by flow classification, and compares the monthly gas fee with the usage rate of gas appliances that are used relatively large to increase the gas demand rather than the share. It is possible to expand gas demand by providing discount services to consumers through measures such as discounting charges.

  On the other hand, the individual accumulation function of the flow rate-by-flow rate accumulation means 5 can be used to make it possible to take discount measures for large flow rate appliances, and to perform switching sales to gas appliances with large consumption, thereby expanding the business of the operator.

  Next, the abnormality determination means 8 determines whether or not the registered flow rate value is in an abnormal use state of the appliance. The abnormality determination means 8 divides the flow rate range for discrimination between the maximum flow rate usable in the gas shut-off device and the abnormal large flow rate due to hose disconnection, etc., and the flow rate range usable in the gas shut-off device, and corresponds to each flow rate range It has a usage time setting value.

  The abnormality determination unit 8 compares the flow rate obtained by the flow rate detection unit 1 with the set abnormality determination flow rate and determines whether or not the flow rate has been exceeded. Compare with the value to determine whether it is in an abnormal long-time use state.

  For example, a use time cut-off table that defines a use time limit corresponding to a case where an appliance such as a stove is used longer than the normal use time is stored in the abnormality determination means 8, and the flow rate of the appliance is monitored. .

  When the abnormality determination means 8 determines that an abnormality has occurred, a cutoff signal is output to the cutoff means 9 to shut off the gas flow path. When the abnormality determining means 8 determines that the gas use state is abnormal and the shut-off means 9 is driven, the shut-off state and the shut-off content are displayed on the liquid crystal display element of the display means 7 and the center for monitoring the safety of the gas Is notified via the communication means 10 such as a telephone line.

  In this way, when the flow rate for each usage amount of the gas appliance installed by the flow rate detection means 1 of the gas shut-off device is selected and set, and the detected and registered flow rate value is within the flow rate range, the flow rate-by-flow rate integrating means 5 The amount of gas appliances used in order to increase the gas demand from the ratio of the monthly gas charge and the total usage amount to the usage amount of each appliance. New gas rate measures such as discounting the rate based on the ratio of the total amount used and providing a cheaper service to consumers makes it possible to expand gas demand, for example, It enables discount measures, can be switched to gas appliances with higher consumption, and can be used as a measure for business expansion by operators. Accumulation and display according to the flow rate of use of appliances Changes in the actual usage of appliances Integrated and the integrated display allows linked to, and to monitor than the integrated value of the change of the amount of the instrument through the security center can also accurately be grasped using state of the gas, thereby enhancing usability.

(Embodiment 2)
A second embodiment will be described with reference to FIG. In addition, the same number is attached | subjected about the same component as FIG. 1 which is Embodiment 1, and the thing of FIG. 1 is used for description.

  In FIG. 2, reference numeral 11 denotes a usage time boundary section storage means, which stores in advance the flow boundary value of the appliance usage time cutoff determination in the abnormality determination means 8 and performs flow rate integration for each appliance. In 3, the usage time boundary segment value is used to allow arbitrary selection.

  Next, the operation of the above configuration will be described. Usually, it connects to a pressure regulator with a high-pressure hose from an LPG container, and a gas shut-off device is installed downstream from the gas consuming appliance. Although the appliances held by customers vary, generally a gas heat pump air conditioner (GHP), a water heater, a gas table, a gas fan heater, or the like is connected to the downstream side of the gas shutoff device.

  In recent years, competition for electricity and gas energy has become fierce, and the demand for environmentally friendly clean gas energy and demand expansion has increased. Therefore, whenever the flow rate is detected by the flow rate detection means 1 every time the appliance is used, the flow rate registration means 2 registers the flow rate as a new appliance flow rate based on the difference from the flow rate before detection. Multiple units can be registered even during simultaneous use.

  Then, the flow rate segment used in the usage time boundary segment storage means 11 is selected and set as the flow rate range by the flow rate selection means 3 from the appliances owned by the consumer.

  The flow rate classification can be set in any flow rate classification range. The customer compares the flow rate value registered in the flow rate registration means 2 after the start of use of the appliance with the flow rate range of the flow rate selection means 3 determined from the use time boundary segment storage means 11, and enters the predetermined flow rate range. Whether or not the flow rate is determined by the flow rate classification determination means 4.

  If it falls within the predetermined flow rate range, it is integrated in the flow rate-based integration means 11 as a corresponding instrument. At this time, if the flow rate division is divided for each instrument, the flow rate is separately integrated in the corresponding flow rate-specific integration means 11. The total use flow rate of the instruments being used at the same time is integrated in the meter reading integration means 6.

  From the usage amount of the meter-reading integration means 6, the monthly gas charge of the consumer can be calculated. Further, the total sum of the flow rate integrating means 5 is less than or equal to the integrated value of the meter-reading integrating means 6, and the amount of use for each appliance with respect to the total amount used can be known. In other words, the gas company reads the total usage amount and the integrated amount for each flow rate, and charges the monthly gas fee based on the ratio of the amount of gas appliances that are used relatively large in order to increase the gas demand rather than the share. By taking measures such as discounts and providing cheaper services to consumers, gas demand can be expanded.

  On the other hand, by using the individual integration function of the flow rate-based integration means 11, discount measures for large flow rate appliances can be made, and further switching to large consumption gas appliances can be performed, thereby expanding the business of the operator.

  Next, the abnormality determination means 8 determines whether or not the registered flow rate value is in an abnormal use state of the appliance. The abnormality determination means 8 divides the flow rate range for discrimination between the maximum flow rate usable in the gas shut-off device and the abnormal large flow rate due to hose disconnection, etc., and the flow rate range usable in the gas shut-off device, and corresponds to each flow rate range It has a usage time setting value.

  The abnormality determination unit 8 compares the flow rate obtained by the flow rate detection unit 1 with the set abnormality determination flow rate and determines whether or not the flow rate has been exceeded. Compare with the value to determine whether it is in an abnormal long-time use state.

  For example, a use time cut-off table that defines a time limit for use time corresponding to a case where a device such as a stove is used for a long time longer than the maximum use time is stored in the abnormality determination means 8. 8 will monitor the instrument flow rate.

  When the abnormality determining means 8 determines that there is an abnormality, a shutoff signal is output to the shutting means 9 to shut off the gas flow path. When the abnormality determining means 8 determines that the gas use state is abnormal and the shut-off means 9 is driven, the shut-off state and shut-off contents are displayed on the liquid crystal display element of the display means 7 and the safety monitoring of the gas is performed. Notification is made by communication means 10 such as a telephone line.

  In this way, the flow rate classification for each usage amount of the gas appliance installed by the flow rate detection means 1 of the gas cutoff device is selected and detected from the usage time boundary category storage means 11 determined by the boundary flow rate of usage time cutoff. If the registered flow rate value is within the flow rate range, it is added to the flow rate integration means 5 and the individual integration for each device is performed. In order to increase the gas demand from the ratio of the amount used for each appliance, new gas fee measures such as discounting the fee based on the ratio between the amount of gas appliances used and the total amount used can be implemented, giving consumers a sense of cheapness. By providing services, it becomes possible to expand gas demand, for example, allow discounting of large flow rate appliances, and switch to sales of gas appliances with large consumption. Expansion measures Accumulation and display according to the flow rate of use of the equipment can be performed, integration and display can be accurately linked to changes in the actual use of the equipment, and changes in the usage of equipment can be monitored through the security center. It is also possible to monitor from the integrated value, and it is possible to accurately grasp the state of gas use, improving usability.

  As described above, the gas shutoff device according to the present invention includes various gas media, LP gas, city gas, and hydrogen gas flowing in the pipe using a membrane type, ultrasonic sensor, hot wire sensor, fluidic sensor, and the like. It can be applied to applications such as water meters that measure liquids such as water using an ultrasonic sensor or an wattmeter that measures the amount of electricity and integrates the amount of use.

FIG. 3 is a control block diagram of the gas cutoff device according to Embodiment 1 of the present invention. Control block diagram of gas cutoff device of embodiment 2 of the present invention Control block diagram of a conventional gas shut-off device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flow detection means 2 Flow registration means 3 Flow classification selection means 4 Flow classification determination means 5 Accumulation means classified by flow classification 7 Display means 11 Usage time boundary division storage means

Claims (3)

A flow rate detection means for detecting a flow rate, a flow rate registration means for registering and storing as an instrument flow rate from the flow rate detected by the flow rate detection means, a flow rate selection means capable of selecting a use flow range as a flow rate category in an arbitrary flow rate range, The flow rate judgment means for comparing the flow rate value of the flow rate registration means with the flow rate category of the flow rate category selection means to determine the flow rate category, and the use amount of the corresponding flow rate registration value at the time of judgment as the predetermined flow rate range by the flow rate category judgment means A gas shut-off device comprising a plurality of flow rate-by-flow rate summing means for summing up and a display means for displaying the accumulated value and the like. A flow rate detecting means for detecting a flow rate, a flow rate registering means for registering and storing as an instrument flow rate from the flow rate detected by the flow rate detecting means, and a usage time cutoff for monitoring an abnormal usage time of the flow rate value of the flow rate registration means A usage time boundary segment storage means for storing the flow rate segment in advance; a flow rate classification selection means capable of arbitrarily selecting a flow rate segment of the usage time boundary segment storage means; and a flow rate value of the flow rate registration means for the flow rate of the flow rate classification selection means. A flow rate determination means for performing flow rate determination in comparison with a classification, a plurality of flow rate integration means for integrating the predetermined flow rate range and the usage amount of the corresponding flow registration value at the time of determination by the flow rate determination means, an integrated value, etc. A gas shut-off device provided with display means for displaying. The program for functioning a computer as all or one part of the means of the interruption | blocking apparatus of any one of Claims 1-2.

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