JP5643695B2 - Water heater - Google Patents

Description

  The present invention relates to an apparatus main body for generating or replenishing hot water to a hot water utilization facility installed at a demand location, and a hot water utilization operation in the hot water utilization facility or a hot water generation operation and a remediation operation in the apparatus main body. It is related with the hot water supply apparatus provided with the monitoring means which monitors water, and the temperature adjustment means which adjusts the temperature of the hot water supplied to the said hot water utilization equipment.

  The rated thermal efficiency of the current hot water supply apparatus has been improved to 95% for hot water supply and 87% for heating in a gas hot water heater, for example, and is almost improved to a limit value. Therefore, in order to further improve energy saving in the future, not only improve the physical configuration for heat supply, but also target the operation content such as hot water supply temperature, hot water supply amount, heating temperature and heating time, It is necessary to make efforts to save energy throughout the water heater usage cycle.

  Therefore, in the prior art, there has been proposed a hot water supply apparatus equipped with an eco function that restricts the flow of hot water supply and suppresses energy consumption when the user manually requests when using energy (see, for example, Patent Document 1). .

JP 2001-116359 A

  However, in the above prior art, since the eco function is started by the manual request of the user, the eco function is not activated when the user neglects the manual request, and energy saving cannot be realized. .

  Further, in the above-described conventional technology, the flow rate is limited when a hot water supply of a certain flow rate or more is detected after the user turns on the saving switch, and therefore the use before turning on the saving switch is considered. Not. Therefore, in consideration of use by other users before the use, the flow rate restriction for the use may be too strict or too slow. For example, when a family shares the same kitchen or bathroom, it is not the individual use of each family member (each user), but the entire family (entire users) ) Monitoring the hot water supply state for each use and limiting the hot water supply as necessary may enable more appropriate energy saving.

  Further, for example, when a single hot water supply device supplies energy to a plurality of demand points, such as when one gas hot water heater supplies heat to each of floor heating, bathroom, and kitchen, a plurality of It is more flexible and effective to save energy by monitoring the use of multiple demand points as a whole, and limiting the hot water supply as needed, rather than using each individual user at each demand point. There is a case.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a hot water supply apparatus that appropriately monitors a hot water supply state without a manual request from a user. Moreover, it exists in the point which provides the hot water supply apparatus which can perform flexible and effective energy-saving activity for the utilization of the energy in a several demand location.

  In order to achieve this object, a hot water supply apparatus according to the present invention includes an apparatus main body that generates or tracks hot water to a hot water use facility installed at a demand point, and a hot water use operation in the hot water use facility or A hot water supply apparatus comprising monitoring means for monitoring a hot water generation operation or a chasing operation in the apparatus main body, and a temperature adjustment means for adjusting a temperature of hot water supplied to the hot water utilization facility, the first feature thereof The configuration can set a limit condition that is an accumulated upper limit value of one or more of hot water usage, generation amount, replenishment amount, supply heat amount or operation time in multiple operations within a unit operation or unit period A degree of satisfaction that satisfies the restriction condition set by the restriction condition setting means with respect to the hot water use operation, generation operation or memorial operation monitored by the monitoring means. It lies in having a determined restriction condition judging means.

According to this characteristic configuration, the hot water supply device monitors the amount of water used, the amount of production, the amount of renewal, the amount of heat supplied, or the operating time in a unit operation or a plurality of operations within a unit period, and the integrated value is limited. The degree of satisfaction satisfying the restriction condition that is the upper limit of integration set by the condition setting means is determined. That is, the hot water supply device monitors the operation of the hot water supply facility and the device main body without depending on the manual request of the user, and determines the degree of satisfaction that the monitored operation of the hot water use facility and the device main body satisfies a predetermined restriction condition. .
In addition, since the restriction condition determination means determines the restriction condition for a unit action or a plurality of actions within a unit period, not only individual use for each user but also other users within the unit period. It is possible to monitor the operation of the hot water utilization equipment and the device main body, including the use. That is, it is possible to appropriately monitor the operation of the hot water utilization facility and the apparatus main body in consideration of the past operation of the hot water utilization facility and the apparatus main body.
Moreover, since the restriction condition determination unit determines the degree of satisfaction satisfying the restriction condition, it is possible to perform stepwise control according to the situation by determining the control of the hot water supply device based on the determined degree of satisfaction.
For example, a notification (warning) is given to the user at a stage where the degree of satisfaction satisfying the restriction condition has increased to some extent (eg, when the satisfaction level reaches 80%), or after notification (warning) to the user When the degree of satisfaction is further increased to some extent (eg, when the degree of satisfaction reaches 90%), the hot water supply flow rate is limited to the normal 60%, or the supply of hot water is still limited. The supply of hot water can be stopped (when the degree of satisfaction reaches 100%). That is, not only the operation of the hot water supply device is stopped, but also stepwise control corresponding to the situation such as warning or supply limitation can be easily performed.
As described above, according to this characteristic configuration, it is possible to provide a hot water supply apparatus that appropriately monitors the hot water supply state (the operation of the hot water use facility and the apparatus main body) without a manual request from the user.

  The 2nd characteristic structure of the hot water supply apparatus which concerns on this invention is a said 1st characteristic structure. WHEREIN: One or more said hot water utilization facilities are installed in each of several demand locations, and the said monitoring means is each of the said hot water utilization facilities. In the configuration for monitoring the use operation, the restriction condition determination unit determines the degree of satisfaction of the monitored use operation that satisfies the restriction condition.

  According to this feature configuration, when one or more hot water use facilities are installed in each of a plurality of demand points, each use operation of the hot water use facilities is monitored, and a plurality of whole demand points are targeted. Usage activity can be monitored. That is, in the case where one hot water supply device supplies heat to a plurality of hot water use facilities, for example, when one hot water floor heater supplies heat to each of floor heating, bathroom, and kitchen, a plurality of hot water supply facilities are used. It is possible to monitor the use operation of each hot water use facility. Moreover, utilization operation | movement can be monitored for the whole some demand location (hot water utilization equipment). Thereby, the hot water supply apparatus which can perform a flexible and effective energy saving activity can be provided for the utilization of energy in a plurality of demand points (hot water utilization facilities).

  According to a third feature configuration of the hot water supply apparatus according to the present invention, in the first or second feature configuration, the restriction condition setting unit is configured as the restriction condition per day, per predetermined time zone, per predetermined time, For any one or more, it is in the point that one or more integrated upper limit values can be set for any of the use amount, generation amount, replenishment amount, supply heat amount or operation time of the hot water.

According to this feature configuration, one or more of one day, a predetermined time zone, and a predetermined time, which is a unit of time familiar to the person who sets the restriction condition and easily reflects the energy utilization characteristics, is targeted. Integrating one or more of hot water supply amount (usage amount of hot water, amount of production, memory amount), hot water supply heat amount (supply heat amount) or hot water supply time (operation time), which is a conventionally measured amount that is frequently used An upper limit value can be set as a limiting condition.
Thereby, it is possible to set a limit condition (integrated upper limit value) for energy use with a measurement amount that is familiar to the user based on a time unit that reflects an energy use characteristic that is familiar to the limit condition setter. Therefore, it is easy for the person who sets the restriction condition to set the restriction condition, and it is possible to provide a water heater that is easy to use.

  According to a fourth feature configuration of the hot water supply apparatus according to the present invention, in the first to third feature configurations, the hot water use operation in the hot water use facility or the hot water generation operation or additional operation in the device body monitored by the monitoring means.実 績 comprising performance storage means for storing information relating to the operation together with the monitored time information as an operation result, and the restriction condition setting means is configured to use the restriction condition based on the operation result stored in the result storage means. It is in the point that can be set.

  According to this characteristic configuration, information on the hot water use operation in the hot water use facility monitored by the monitoring means of the hot water supply device or the hot water generation operation and the memorial operation in the device main body is stored together with the monitored time information. A limiting condition can be set based on the operation results. Therefore, the restriction condition can be set based on not only the subjective recognition and experience of the restriction condition setting person but also objective information such as the operation result monitored by the hot water supply device. As a result, the objectivity is higher and appropriate restriction conditions can be set.

  A fifth feature configuration of the hot water supply apparatus according to the present invention is that, in the first to fourth feature configurations, the restriction condition setting means can set an upper limit value of hot water temperature as the restriction condition.

  According to this feature configuration, since the upper limit value of the hot water temperature can be set as the limiting condition, when excessively high temperature hot water supply is performed, the limiting condition determination means can be used to detect this. it can. Thereby, the monitoring function with which the hot water supply device is provided can be used not only for energy saving activities but also for safety management.

  According to a sixth feature configuration of the hot water supply apparatus according to the present invention, in the first to fifth feature configurations, the restriction condition setting means is for at least one of a future specific day, time zone, or time. The restriction condition can be set in advance.

  According to this feature configuration, there is a restriction on at least one of a specific future date, time zone, or time that is predicted in advance to require monitoring of the operation of the hot water use facility or the apparatus main body. Conditions can be preset. That is, for a specific period in the future, a restriction condition can be set at any time when the restriction condition setter recognizes the necessity of energy usage restriction during the period. Therefore, it is easy for the person who sets the restriction condition to set the restriction condition, and it is possible to provide a highly convenient hot water supply apparatus.

  A seventh feature configuration of the hot water supply apparatus according to the present invention is the first to sixth feature configurations, comprising a generation state adjusting means for adjusting a generation amount, generation heat amount or generation time of hot water generated in the device main body, The restriction condition determining means determines a satisfaction degree satisfying the restriction condition with respect to the generation operation, and based on the determined satisfaction degree, the generation state adjusting means causes the production amount of the hot water to the hot water use facility, It is in the point which performs the production | generation restriction | limiting which adjusts or restrict | limits any one or more of produced | generated heat amount or production | generation time.

According to this characteristic configuration, the degree of satisfaction satisfying the restriction condition regarding the generation operation monitored by the monitoring means is determined by the restriction condition determining means, and the amount of hot water generated and generated in the hot water use facility based on the determined degree of satisfaction The production is limited by adjusting or limiting any one or more of the heat amount and the generation time. Therefore, it is not an abrupt thing that the supply of hot water is stopped suddenly when the cumulative upper limit value that is the limiting condition is reached, and based on the determined degree of satisfaction, for example, the degree of satisfaction reaches 80% of the limiting condition If the degree of satisfaction reaches 90% of the limit condition, the user is warned and the amount of hot water generated is 60% of the normal time. If the limit condition is reached, the user is warned. It is possible to provide a step-by-step production restriction such as notifying and stopping the production of hot water.
As described above, according to this feature configuration, by appropriately setting the restriction condition and the content of adjustment or restriction, the energy saving activity is flexible and highly effective according to the situation based on the generation operation monitored by the monitoring means. The hot water supply apparatus which performs can be provided.

  The eighth characteristic configuration of the hot water supply apparatus according to the present invention is a memorial state in which, in the first to seventh characteristic configurations, the amount of chasing, chasing heat, or chasing time of the hot water chased by the device body is adjusted. Adjustment means, wherein the restriction condition determination means determines a satisfaction degree satisfying the restriction condition regarding the chasing operation, and based on the determined satisfaction degree, the chasing state adjustment means causes the hot water utilization facility to The point is to perform a memory restriction that adjusts or restricts any one or more of the amount of memorized water, the amount of memorial heat, and the time for memorializing.

  According to this characteristic configuration, the degree of satisfaction satisfying the restriction condition regarding the chasing operation monitored by the monitoring means is determined by the restriction condition determining means, and the amount of hot water added to the hot water use facility is determined based on the determined degree of satisfaction. Further, any one or more of the memorial heat amount or the memorial time is adjusted or limited, and the memorial limitation is performed. As a result, similar to the above-described generation operation, it is possible to perform step-by-step tracking restrictions according to the status of the tracking operation. Therefore, by appropriately setting the restriction conditions and the contents of adjustment or restriction, a hot water supply apparatus that performs flexible and highly effective energy saving activities according to the situation based on the memorial operation monitored by the monitoring means is provided. Can do.

  According to a ninth feature configuration of the hot water supply apparatus according to the present invention, in the first to eighth feature configurations, the restriction condition determination unit determines a satisfaction degree that satisfies the restriction condition with respect to the use operation, and the determined satisfaction degree. On the basis of the hot water utilization facility, the operation restriction target facility for adjusting or restricting the utilization operation in the hot water utilization facility in preference to the set operation condition set in the hot water utilization facility and the hot water utilization facility is set. The setting operation condition priority facility that does not adjust or restrict the use operation in the hot water use facility in preference to the set operation condition is configured to be set alternatively.

  According to this feature configuration, the restriction condition determination means determines the satisfaction degree that satisfies the restriction condition regarding the use operation, the operation restriction target equipment that restricts the operation based on the determined satisfaction degree, and the setting operation that does not perform the operation restriction Conditional priority equipment can be set alternatively. Therefore, it is possible to flexibly set the operation restriction target equipment that is the target of the energy saving activity and the set operation condition priority equipment that prioritizes the on-site request. Thereby, the hot water supply apparatus which can implement the energy saving activity with high flexibility and convenience can be provided.

Overall configuration diagram of gas water heater Control block diagram of gas hot water heater Control flow diagram of gas hot water heater restriction conditions and hot water restriction settings Control flow chart of hot water supply status monitoring of gas hot water heater

  A gas hot water heater which is an embodiment of a hot water supply apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a gas hot water heater 1 which is an embodiment of a hot water supply apparatus according to the present invention. As operation related to hot water supplied from the gas hot water heater 1, generation operation for generating hot water in the apparatus main body 1 </ b> A and supplying it to the hot water utilization facility F and returning hot water from the hot water utilization facility F to the apparatus main body 1 </ b> A and in the apparatus main body 1 </ b> A There is a memorial operation where the hot water supplied from the gas hot water heater 1 is used in the hot water utilization facility F. In the following description, the hot water generation operation in the apparatus main body 1A and the hot water use facility F in the hot water use facility F will be mainly described.

  A gas hot water heater 1 shown in FIG. 1 generates hot water and supplies hot water to a hot water tap 4, a heating terminal 8, and a bathtub 10 that are hot water utilization facilities F installed in a demand point P of a general household. The main body 1A provided with the exchanger 6 and the heating heat exchanger 9, and the hot water supply amount, hot water supply temperature, and hot water supply time supplied to the hot water use facility F are measured by a measuring system S including a thermistor, a water amount sensor, and a timer. Hot water supply state monitoring means 61 as monitoring means for collecting hot water supply information and monitoring hot water use operation in the hot water use facility F or hot water generation operation or memorial operation state in the apparatus main body 1A, and , Hot water supply temperature adjustment means (hot water supply state adjustment means) as temperature adjustment means for adjusting the hot water supply temperature supplied to the hot water utilization facility F by controlling the operation of the adjustment system M comprising a burner, an adjustment valve and a fan One function of 5), a water heater and a driving control unit 45 to operate as a.

  A gas hot water heater 1 shown in FIG. 1 heats water from a water supply path 2 connected to a general household water pipe by a gas combustion type hot water supply burner 3, and hot water after the heating has a hot water tap 4. A hot water supply heat exchanger 6 to be supplied to a hot water supply path 5 provided with a heating heat exchanger 9 for heating a heat medium by combustion of a gas combustion type heating burner 7 and supplying the heat medium to a heating terminal 8 and the like, and a heating heat exchanger 9 is configured by a two-can three-water system provided with a bath heat exchanger 11 that heats hot water in the bathtub 10 with the heat medium heated at 9 and supplies the hot water to the bathtub 10.

Each of the hot water supply burner 3 and the heating burner 7 is connected to a gas supply path 12 for supplying fuel gas for general households, and the electromagnetic gas proportional valve 13 for adjusting the fuel gas supply amount and the supply of the fuel gas are intermittently supplied. An intermittent valve 14 is provided for each. In addition, each of the hot water supply burner 3 and the heating burner 7 is provided with a combustion fan 15 for supplying combustion air, and although not shown in the drawings, near the hot water supply burner 3 and the heating burner 7. Are separately provided with an ignition igniter for performing an ignition operation on each of the hot water supply burner 3 and the heating burner 7, a frame rod for detecting whether or not ignition is performed, and the like.
These hot-water supply burner 3, heating burner 7, gas proportional valve 13, intermittent valve 14, combustion fan 15, igniter, frame rod, etc. for adjusting the heating state in hot-water supply heat exchanger 6 and heating heat exchanger 9 use hot water. An adjustment system M for adjusting a hot water supply state of hot water supplied to the facility F is configured.

  The hot water supply heat exchanger 6 is connected to a water supply path 2 and a hot water supply path 5, and the water supply path 2 is provided with a water supply thermistor 16 that detects a water supply temperature and a water amount sensor 17 that detects a water supply amount. . A bypass path 18 is provided so that the water supply path 2 and the hot water supply path 5 bypass the hot water supply heat exchanger 6, and a bypass valve 19 is provided in the bypass path 18. An outlet temperature thermistor 20 that detects the outlet temperature of the hot water supply heat exchanger 6 and a hot water thermistor 21 that detects the temperature of the hot water after the water supplied from the bypass 18 is mixed in the hot water supply path 5 in order from the upstream side. The hot water supply thermistor 21 also functions as a hot water supply temperature sensor for measuring the hot water supply temperature to the hot water tap 4. Further, a hot water supply / water supply adjustment valve 71 for adjusting the amount of hot water supplied to the hot water tap 4 and a hot water supply amount sensor 81 for measuring the amount of hot water supplied to the hot water tap 4 are provided downstream of the branch point between the hot water supply passage 5 and the hot water supply passage 39. On the hot water supply path 5 upstream of the hot water tap 4, a hot water tap hot water supply amount adjustment valve 71 and a hot water supply amount sensor 81 are provided in this order from the upstream side. Further, based on the presence or absence of hot water supply to the hot water tap 4 measured by the hot water supply amount sensor 81, the hot water supply time to the hot water tap 4 is provided by the timer 46 provided in the operation control means 45.

  The heating heat exchanger 9 is connected to a heating medium forward path 22 that supplies the heated heating medium to the heating terminal 8 and a heating medium return path 23 that returns the heating medium from the heating terminal 8. The heating medium return path 22 and the heating medium return path 23 are connected by a first heating medium bypass path 25 and a second heating medium bypass path 26 that bypass the heating terminal 8. The positional relationship between the first heating medium bypass path 25 and the second heating medium bypass path 26 is such that the connection location of the first heating medium bypass path 25 in the heating medium delivery path 22 is more than the connection location of the second heating medium bypass path 26. In the heat medium return path 23, the connection portion of the second heat medium bypass passage 26 is upstream of the connection portion of the first heat medium bypass passage 25. A heating medium thermistor 27 that detects the temperature of the heated heating medium is provided in the heating medium going-out path 22, and the first heating medium bypass path 25 is connected to the downstream side of the installation location of the heating medium thermistor 27. The location is located. The heating medium return path 23 is provided with an expansion tank 28 and a heating medium circulation pump 29 in order from the upstream side, and the connection location of the first heating medium bypass path 25 is upstream of the installation location of the expansion tank 28. positioned.

  As the heating terminal 8, a high-temperature heating terminal 8a (for example, a bathroom drying device) that supplies a high-temperature heating medium (for example, a heating medium at 80 ° C.) and a heating medium at a lower temperature than the high-temperature heating terminal 8a (for example, a heating medium at 60 ° C.) And a low-temperature heating terminal 8b (for example, a floor heating panel). The high-temperature heating terminal 8a is connected to the heating medium return path 22 and the heating medium return path 23. The low-temperature heating terminal 8b is connected to the installation location of the heating medium circulation pump 29 and the heating heat exchanger in the heating medium return path 23. A low-temperature heat medium forward path 30 and a heat medium return path 23 branched from each other are connected. The heat medium circulation path 24 includes a heat medium forward path 22, a heat medium return path 23, and a low temperature heat medium forward path 30. As a result, the heating medium heated by the heating heat exchanger 9 is supplied to the high-temperature heating terminal 8a through the heating medium forward path 22, and the heating medium from the high-temperature heating terminal 8a is supplied to the heating medium return path 23. Is returned to the heating heat exchanger 9. For the low temperature heating terminal 8b, the heating medium heated by the heating heat exchanger 9 is passed through the heating medium delivery path 22, the first heating medium bypass path 25, the heating medium return path 23, and the low temperature heating medium delivery path 30. The heat medium from the low-temperature heating terminal 8 b is returned to the heating heat exchanger 9 through the heat medium return path 23.

As a means for measuring hot water supply information of the heating terminal 8, a heat medium thermistor 27 provided in the heat medium forward path 22 functions as a high temperature heating hot water supply temperature sensor that measures the hot water supply temperature to the high temperature heating terminal 8a. Moreover, the high temperature heating hot water supply amount adjustment valve 72a for adjusting the hot water supply amount to the high temperature heating terminal 8a and the high temperature heating hot water supply amount sensor 82 for measuring the hot water supply amount to the high temperature heating terminal 8a include the heating medium forward path 22 and the second heating medium. A high temperature heating hot water supply amount adjustment valve 72a and a high temperature heating hot water supply amount sensor 82 are provided in that order from the upstream on the heat medium forward passage 22 downstream of the branch point with the bypass passage 26 and upstream of the high temperature heating terminal 8a. Yes.
Further, a low temperature heating / hot water temperature sensor 83 for measuring the temperature of the hot water supply to the low temperature heating terminal 8 b is provided in the expansion tank 28. In addition, a low temperature heating / hot water supply adjustment valve 72b for adjusting the amount of hot water supplied to the low temperature heating terminal 8b, and a low temperature heating / hot water supply sensor 84 for measuring the amount of hot water supplied to the low temperature heating terminal 8b include a low temperature heating medium upstream of the low temperature heating terminal 8b. On the outgoing path 30, a low-temperature heating and hot water supply adjustment valve 72 b and a low-temperature heating and hot water supply sensor 84 are provided in this order from the upstream.
In addition, a timer provided in the operation control means 45 based on the presence or absence of hot water supply to the high temperature heating terminal 8a and the low temperature heating terminal 8b respectively measured by the high temperature heating hot water supply sensor 82 and the low temperature heating hot water supply sensor 84. By 46, the hot water supply time to each of the high temperature heating terminal 8a and the low temperature heating terminal 8b is provided so that measurement is possible.

  The second heat medium bypass passage 26 includes a heat medium interrupt valve 31 and a bath heat exchanger 11 in order from the upstream side. The heat medium interrupting valve 31 is configured by an on-off valve that intermittently supplies the heat medium flowing through the heat medium going path 22 to the second heat medium bypass path 26. Then, the heat medium interrupting valve 31 is switched to the open state to switch to the bypass state in which the heat medium flowing through the heat medium forward path 22 is supplied to the second heat medium bypass path 26 (dotted line arrow in the figure). By switching the valve 31 to the closed state, the heat medium flowing through the heat medium forward path 22 can be switched to a non-bypass state in which the second heat medium bypass path 26 is not supplied. The bath heat exchanger 11 is liquid heat that heats the hot water in the bathtub 10 flowing through the bath circulation path 32 with the heat medium heated by the heating heat exchanger 9 and supplied to the second heat medium bypass path 26. It consists of an exchanger.

The bath heat exchanger 11 is connected to a bath return path 33 for supplying heated hot water to the bathtub 10 and a bath return path 34 for supplying hot water from the bathtub 10. The bath return path 34 and the bath return path 34 are connected to the bath heat exchanger 11. A bath circulation path 32 is configured. In the bath return path 34, in order from the upstream side, a bath thermistor 35 that detects the temperature of hot water in the bathtub, a water level sensor 36 that detects the water level in the bathtub 10 by detecting pressure, a water flow switch 37, A bath circulation pump 38 is provided. A hot water filling passage 39 branched from the hot water supply passage 5 and connected to the bath return passage 34 is provided with a hot water filling valve 40, an air layer forming hopper 41, and a hot water filling check valve 42 in order from the upstream side. . The air layer forming hopper 41 is provided with a drainage channel 43 that is connected to the bath return channel 34 and drains hot water and a drainage valve 44 that opens and closes the drainage channel 43.
Also, a bath hot water supply adjustment valve 73 that adjusts the amount of hot water supplied to the bathtub 10, a bath hot water temperature sensor 85 that measures the hot water temperature and the amount of hot water supplied to the bathtub 10, and a bath hot water sensor 86 are downstream of the bath heat exchanger 11. The bath hot water supply adjustment valve 73, the bath hot water temperature sensor 85, and the bath hot water supply sensor 86 are provided in this order from the upstream on the bath going path 33 upstream of the bathtub 10. Moreover, based on the presence or absence of hot water supply to the bathtub 10 measured by the bath hot water supply amount sensor 86, the hot water supply time to the bathtub 10 can be measured by the timer 46 provided in the operation control means 45.

〔Remote controller〕
An operation control means 45 for controlling the operation of the gas hot water heater 1 is provided. The operation control means 45 is an artificially operated remote controller for gas hot water heater 91 and 93 for commanding the operation of the gas hot water heater 1. Various types of information can be communicated with each other. Remote controls 91 and 93 for gas hot water heaters are provided in each of the kitchen and bathroom, and can set hot water set temperature, hot water set temperature, etc., and can request various operations by turning on various switches. It is configured.
The operation control means 45 is configured to be able to communicate various types of information with the manually operated heating terminal remote controller 92 (92a, 92b) that commands the operation of the heating terminal 8. The heating terminal remote control 92 is provided for each of the high-temperature heating terminal 8a and the low-temperature heating terminal 8b, and can set a drying temperature, a floor temperature, etc., and requests various operations by turning on various switches. It is configured to be possible.

  The operation control means 45 is in a controllable state when the operation switch of the gas hot water heater remote controller 91 provided in the kitchen is turned on, and hot water is supplied from the hot water tap 4 when the hot water tap 4 is opened. Perform hot water operation. Further, the operation control means 45 executes the hot water filling operation when the hot water filling switch of the remote controller 93 for the gas hot water heater provided in the bathroom is turned on and a bath hot water filling request is requested, and the memorial switch is turned on. When it is operated and a bath memorial request is requested, the memorial operation is executed. Further, the operation control means 45 executes the heating operation when the heating operation switch of the heating terminal remote controller 92 (92a, 92b) is turned on and an operation request is requested from the heating terminal 8.

[Hot water operation]
When the operation control means 45 opens the hot-water tap 4 and determines that the amount of water detected by the water amount sensor 17 exceeds a predetermined amount and a hot-water supply request is requested, the hot-water supply burner 3 is combusted and the hot-water supply heat exchanger 6 makes hot water. Hot water supply heating operation is performed to heat the That is, the operation control means 45 starts driving the combustion fan 15, then opens the intermittent valve 14, adjusts the opening of the gas proportional valve 13, and ignites the hot water supply burner 3 by the igniter. Then, the operation control means 45 converts the hot water supply temperature into the hot water supply set temperature based on the hot water supply set temperature in the remote controller 91 for gas hot water heater provided in the kitchen, the detected water temperature by the water supply thermistor 16, the detected water amount by the water amount sensor 17, and the like. Thus, the target combustion amount of the hot water supply burner 3 is determined, and the opening degree of the gas proportional valve 13 and the rotational speed of the combustion fan 15 are controlled so as to obtain the determined target combustion amount.
When the water flow sensor 17 no longer detects water flow, the operation control means 45 closes the gas proportional valve 13 and the intermittent valve 14 to stop the fuel supply and stop the combustion of the hot water supply burner 3 and the combustion fan. 15 is also stopped to end the hot water supply operation.

[Hot water operation]
The operation control means 45 opens the hot water filling valve 40 and starts water passage when the hot water filling switch of the remote controller 93 for gas hot water heater provided in the bathroom is turned on and a hot water filling request is requested. The hot water supply heating operation is performed in which the hot water supply burner 3 is burned and the hot water supply heat exchanger 6 heats the hot water so that the detected temperature of the hot water thermistor 21 becomes the target temperature for hot water filling (hot water filling set temperature). When the water level of the bathtub 10 detected by the water level sensor 36 reaches the set water level, the operation control means 45 closes the hot water filling valve 40 to stop the combustion of the hot water supply burner 3 and also stop the combustion fan 15. The hot water heating operation is stopped and the hot water filling operation is terminated.

[Memorial operation]
The operation control means 45 activates the bath circulation pump 38 when the remedy switch of the remote controller 93 for the gas water heater / heater provided in the bathroom is turned on and a bath remedy request is requested. Hot water is circulated through the bath return path 34 and the bath return path 33. When this is detected by the water flow switch 37 at that time, the operation control means 45 operates the heat medium circulation pump 29 in a state where the heat medium interrupting valve 31 is opened and switched to the bypass state, and the heating burner is operated. The heating heating operation is performed in which the heating medium is heated by the heating heat exchanger 9 by burning the fuel 7. The operation control means 45 starts driving the combustion fan 15 as a heating heating operation, then opens the intermittent valve 14, adjusts the opening of the gas proportional valve 13, and ignites the heating burner 7 by the igniter. . Then, the operation control means 45 is for setting the detected temperature of the heat medium thermistor 27 to the target temperature (for example, 80 ° C.) based on the deviation between the detected temperature of the heat medium thermistor 27 and the target temperature (for example, 80 ° C.). The target combustion amount of the heating burner 7 is obtained, and the opening degree of the gas proportional valve 13 and the rotational speed of the combustion fan 15 are controlled so as to obtain the obtained target combustion amount. As a result, the heat medium heated by the heating heat exchanger 9 is supplied to the second heat medium bypass path 26 and the bath return path using the heat medium heated by the heating heat exchanger 9 in the bath heat exchanger 11. The hot water in the bathtub 10 supplied at 34 is heated, and the hot water in the bathtub 10 heated by the bath heat exchanger 11 is supplied to the bathtub 10 through the bath going path 33.
Then, when the detected temperature of the bath thermistor 35 reaches the memory setting temperature, the operation control means 45 stops the bath circulation pump 38 and the heat medium circulation pump 29, stops the combustion of the heating burner 7, and the combustion fan. 15 is also stopped, the heating and heating operation is stopped, and the chasing operation is finished.

[Heating operation]
When an operation request is requested from the heating terminal 8, the operation control means 45 operates the heat medium circulation pump 29 in a state where the heat medium interrupt valve 31 is closed and switched to the non-bypass state, and the above-described memorial service is performed. Similarly to the operation, a heating heating operation is performed in which the heating burner 7 is burned and the heating medium is heated by the heating heat exchanger 9. Here, the operation control means 45 sets the detected temperature of the heat medium thermistor 27 to the target temperature (for example, 80 ° C.) based on the deviation between the detected temperature of the heat medium thermistor 27 and the target temperature (for example, 80 ° C.). The target combustion amount of the heating burner 7 is obtained, and the opening degree of the gas proportional valve 13 and the rotational speed of the combustion fan 15 are controlled so as to obtain the obtained target combustion amount.
And when the operation request | requirement is requested | required from the high temperature heating terminal 8a, the operation control means 45 will open the heat-medium supply intermittent valve (illustration omitted) with which the heat-medium going path 22 was equipped, and a heating heat exchanger The heating medium heated at 9 is supplied to the high-temperature heating terminal 8 a through the heating medium going-out path 22. Moreover, when the operation request | requirement is requested | required from the low temperature heating terminal 8b, the operation control means 45 will open the heat-medium supply intermittent valve (illustration omitted) with which the low-temperature heat-medium going path 30 was equipped, and heating heat exchange The heating medium heated by the vessel 9 is supplied to the low temperature heating terminal 8b by passing the heating medium going path 22, the first heating medium bypass path 25, the heating medium return path 23, and the low temperature heating medium going path 30 in order. Yes.
When the operation request from the heating terminal 8 is finished, the operation control means 45 stops the heating medium circulation pump 29, stops the combustion of the heating burner 7, and also stops the combustion fan 15 to stop the heating heating operation. To end the heating operation.

(Operation control)
When each of the hot water supply request, the bath hot water request, the bath renewal request, and the operation request from the heating terminal 8 is requested independently, the operation control means 45 performs a hot water supply operation, a hot water operation, a memorial operation, and Each of the heating operation is executed alone.
In addition, when two or more of a hot water supply request, a bath hot water request, a bath renewal request, and an operation request from the heating terminal 8 are requested at the same time, the operation control means 45 simultaneously executes the requested operation. .
Note that the operation of using hot water obtained by these hot water supply operation, hot water filling operation, memorial operation, and heating operation in the hot water tap 4, the heating terminal 8, and the bathtub 10, which is the hot water utilization facility F, This is called hot water use operation in the use facility F. Further, the operation of the apparatus main body 1A in the hot water supply operation and the hot water filling operation is referred to as hot water generation operation in the apparatus main body 1A, and the operation of the apparatus main body 1A in the memorial operation and heating operation is referred to as the hot water pursuit operation in the apparatus main body 1A. Call.

(Control configuration)
Below, based on FIG. 2, the control structure of the gas hot-water heater 1 accompanying a hot-water supply operation is demonstrated. In the following, the control configuration for the hot water generation operation in the apparatus main body 1A associated with the hot water supply operation and the hot water utilization operation in the hot water utilization facility F will be mainly described. The same control configuration can be used for the hot water pursuit operation accompanying the chasing operation or the heating operation. The control configuration of the hot water generation operation, the chasing operation, or the hot water chasing operation, which accompanies these hot water filling operations, will be described supplementarily in various places.

[Setting of restriction conditions]
The gas hot water heater 1 is one of a hot water supply amount, a hot water supply heat amount, or a hot water supply time in a unit hot water supply operation measured as a single hot water supply operation or a plurality of hot water supply operations within a unit period to be described later. There is provided a limiting condition setting means 51 that can set a limiting condition Cd that is one or more integrated upper limit values. The limiting condition Cd includes a determination timing for determining the limiting condition Cd, the content of the limiting condition Cd (cumulative upper limit value), and the content of the hot water limitation based on the degree of satisfaction that satisfies the limiting condition Cd (cumulative upper limit value). Consists of.
The “contents of hot water restriction based on the degree of satisfaction satisfying the restriction condition Cd (cumulative upper limit value)” means, for example, “notification to user (warning) as a hot water restriction when the degree of satisfaction reaches“ 80% ”. ) ”, When the degree of satisfaction reaches“ 90% ”,“ limit the hot water flow rate to the normal 60% ”, when the degree of satisfaction reaches“ 100% ”,“ stop supply of hot water ”, etc. , Satisfaction level and corresponding hot water restriction content. If there is no particular setting, notification (warning) is set to notify the user when 80% of the satisfaction degree is reached. Such a warning setting can also be canceled.
In the above and below, in order to describe the control configuration of the gas hot water heater 1 related to the hot water supply operation, the limiting condition Cd is set to one or more integrated upper limit values of hot water supply amount, hot water supply heat amount or hot water supply time. In order to control other operations, that is, hot water generation operation or reheating operation accompanying hot water operation or hot water renewal operation accompanying heating operation, the gas hot water heater 1 is operated in unit operation or unit period. A limiting condition setting means 51 capable of setting a limiting condition Cd, which is an accumulated upper limit value of any one or more of hot water usage amount, generation amount, replenishment amount, supply heat amount or operating time in a plurality of operations in I have. Below, especially the control structure of the gas hot-water supply heater 1 which concerns on a hot-water supply driving | operation is demonstrated, but a control structure is the same also about another driving | operation.

  One hot water supply operation means continuous hot water supply from the start of hot water supply until the end of the hot water supply is detected. In the gas hot water heater 1, the start and end of hot water supply to each of the hot water use facilities F (the hot water tap 4, the high temperature heating terminal 8 a, the low temperature heating terminal 8 b, and the bathtub 10) are determined by the hot water supply amount sensor V (the hot water supply amount sensor 81, The hot water supply state monitoring means 61 detects the start and end of hot water supply in response to the measured values of the high temperature heating hot water supply sensor 82, the low temperature heating hot water supply sensor 84, and the bath hot water supply sensor 86).

The unit period is a unit of time for monitoring the hot water supply state, and can be set by the restriction condition setting means 51. In the gas hot water heater 1, any one or more of a unit period, a predetermined time zone, and a predetermined time can be set as a unit period.
In the gas hot water heater 1, as “per day”, either “00:00 to 24:00 (24 hours) on a specific day” or “24 hours before the hot water supply operation” can be set. As the “predetermined time zone”, either “AM / PM” or “Early morning / morning / daytime / evening / night / midnight” can be set. Further, as the “predetermined time”, any one of 1 hour, 2 hours, 3 hours, 6 hours, 9 hours, and 12 hours from a specific time can be set.
The unit period is measured by a timer 46 provided in the operation control means 45.

  The restriction condition setting means 51 constitutes a part of the operation control means 45, and displays information about the hot water supply state of the hot water supply facility F to the user and outputs the sound, and the user can operate the operation control. Input / output system I / O communicable with the means 45, that is, remote controls 91 and 93 for gas hot water heaters installed around the hot water utilization facility F (hot water tap 4, heating terminal 8 and bathtub 10), remote control for heating terminal 92, the restriction condition Cd can be set by an input from the operation panel 94 of the operation control means 45.

The limiting condition setting unit 51 is configured to be able to set the limiting condition Cd based on the hot water supply record accumulated in the hot water supply record accumulating unit 62 described later. The hot water supply result accumulating unit 62 and the hot water supply result are examples of the result accumulating unit and the operation result according to the present invention, respectively.
For example, by referring to the average hot water supply amount, average hot water supply heat amount, average hot water supply time by time zone of the past year, the past month, or the same month last year via the input / output system I / O, it is stored in the hot water supply result storage means 62. The limiting condition Cd can be set based on the actual hot water supply record.

In addition, although hot water supply operation was demonstrated above, it can comprise similarly about the production | generation operation | movement of hot water accompanying a hot water filling operation, the chasing operation, or the chasing operation of hot water accompanying a heating operation.
In other words, the restriction condition setting means can set the restriction conditions based on the operation results accumulated in the result accumulation means to be described later, for the hot water generation operation and the hot water renewal operation associated with the operation other than the hot water supply operation. Composed.

  In addition, the restriction condition setting means 51 is configured to be able to set the restriction condition Cd for a unit period of a specific day in the future. That is, the restriction condition setting unit 51 can set the restriction condition Cd in advance for a specific day, time zone, or time in the future.

The set limiting condition Cd is stored in the limiting condition storage unit 52. The limit condition Cd stored in the limit condition storage unit 52 includes a determination timing for determining the limit condition Cd. As described later, the limit condition determination unit 53 sets the limit condition at the timing set as the determination timing. The degree of satisfaction satisfying Cd is determined and used to determine the hot water supply state.
For example, if the determination timing is the restriction condition Cd for the “unit hot water supply operation”, the restriction condition Cd between the start and the end of the hot water supply, and if the determination timing is the restriction condition Cd for the “predetermined time zone”, The degree of satisfaction satisfying Cd is determined and used to determine the hot water supply state.

[Monitoring hot water supply status]
In the gas hot water heater 1, the operation control unit 45 always obtains hot water supply information from the measurement system S by the hot water supply state monitoring unit 61 and monitors the hot water supply state in each of the hot water utilization facilities F. And the information regarding the hot water supply state obtained by the said monitoring is accumulate | stored in the hot water supply performance accumulation | storage means 62 as a hot water supply performance with the time information measured by the timer 46. FIG. In addition, the hot water supply state monitored by the hot water supply state monitoring unit 61 is used for determination of a restriction condition Cd described later when the monitored timing corresponds to the determination timing.

In addition, although hot water supply operation was demonstrated above, it can comprise similarly about the production | generation operation | movement of hot water accompanying a hot water filling operation, the chasing operation, or the chasing operation of hot water accompanying a heating operation.
That is, the gas hot-water heater 1 operates together with information on the time of monitoring the information on the hot water use operation F in the hot water use facility F monitored by the monitoring means or the hot water generation operation or the memorial operation in the apparatus main body 1A. A record storage means for storing records as a record is provided. When the monitored timing corresponds to the determination timing, information on the hot water use operation in the hot water use facility F monitored by the monitoring means or the hot water generation operation or the renewal operation in the apparatus main body 1A is described later. Used to determine the condition Cd.

  The hot water supply state monitoring means 61 includes temperature sensors (hot water supply temperature sensor (hot water thermistor 21), high temperature heating hot water supply temperature sensor (heat medium thermistor 27), low temperature heating hot water supply temperature sensor 83) that measure the hot water supply temperature to each of the hot water utilization facilities F. , Bath hot water temperature sensor 85), hot water sensor for measuring the amount of hot water supplied to each of the hot water utilization facilities F (hot water sensor 81, high temperature heating hot water sensor 82, low temperature heating hot water sensor 84, bath hot water sensor 86) Measurement information is obtained from a measurement system S including a timer 46 for measuring time, and hot water supply conditions such as a hot water supply temperature, a hot water supply amount, a hot water supply heat amount, a hot water supply time to each of the hot water utilization facilities F are monitored.

[Judgment of restriction conditions]
The gas hot water heater 1 includes a limiting condition determination unit 53 that determines the degree of satisfaction that satisfies the limiting condition Cd set by the limiting condition setting unit 51 with respect to the hot water supply state monitored by the hot water supply state monitoring unit 61.

The restriction condition determination unit 53 constantly monitors whether the time and the hot water supply state monitored by the hot water supply state monitoring unit 61 correspond to the determination timing set in the restriction condition Cd. When the determination timing set in the restriction condition Cd is satisfied, the degree of satisfaction that the hot water supply state monitored by the hot water supply state monitoring unit 61 satisfies the restriction condition Cd is determined.
That is, the restriction condition determination unit 53 satisfies the restriction condition Cd set by the restriction condition setting unit 51 with respect to the hot water use operation, generation operation, or chasing operation monitored by the monitoring unit (hot water supply state monitoring unit 61). It is comprised so that a degree may be determined.

In the gas hot water heater 1 shown in FIG. 1, one or more hot water use facilities F (a hot water tap 4, a heating terminal 8 (a high temperature heating terminal 8a, a low temperature heating terminal 8b), a bathtub 10) are provided for each of a plurality of demand points P. The hot water supply state monitoring means 61 monitors the hot water supply state of each of the hot water utilization facilities F, and the restriction condition determination means 53 determines the degree of satisfaction that the monitored hot water supply condition satisfies the restriction condition Cd. Has been. That is, one or more hot water use facilities F are installed in each of the plurality of demand points P, and the monitoring means monitors the respective use operations of the hot water use facilities F, and the monitored use operation satisfies the limit condition Cd. The restriction condition determination unit 53 is configured to determine the degree of satisfaction that is satisfied.
In addition, in the said structure, the content of the restriction conditions Cd does not need to be limited to each hot water utilization equipment F. The limiting condition Cd can be set for the hot water supply state of the entire hot water utilization facility F or a plurality of the hot water utilization facilities F, for example, “within 600 liters of hot water supply per day for the entire hot water utilization facility F”.

[Restrictions on hot water supply]
The gas hot water heater 1 includes hot water supply state adjusting means 75 for adjusting the amount of hot water supplied to the hot water utilization facility F, the amount of hot water supplied, or the time of hot water supply. In the determination of the restriction condition Cd, the restriction condition determination unit 53 determines the degree of satisfaction that satisfies the restriction condition Cd with respect to the monitored hot water supply state, and the hot water supply state adjustment means 75 uses the hot water based on the determined degree of satisfaction. Hot water supply restriction is performed to adjust or restrict any one or more of hot water supply amount, hot water supply heat amount, or hot water supply time to the facility F.

  The hot water supply state adjustment means 75 displays the information on the hot water supply state of the hot water to the hot water use facility F to the user and the operation of the input / output system I / O for outputting sound and the hot water supply state of the hot water supplied to the hot water use facility F. The operation of the adjusting system M to be adjusted is configured to be controllable. That is, a remote control screen display and audio output operation that outputs information on hot water supply status to the hot water use facility F to the user, hot water supply amount for adjusting the hot water supply amount and hot water supply time supplied to the hot water use facility F The operation of the hot water supply temperature adjusting means for adjusting the amount adjustment valve and the hot water supply heat quantity is configured to be controllable. Note that the hot water supply amount adjusting valve corresponds to each of the hot water use facility F (the hot water tap 4, the heating terminal 8 (the high temperature heating terminal 8a, the low temperature heating terminal 8b), and the bathtub 10). It comprises a hot water supply amount adjustment valve 72 (a high temperature heating hot water supply amount adjustment valve 72a, a low temperature heating hot water supply amount adjustment valve 72b), and a bath hot water supply amount adjustment valve 73.

  The content of the hot water supply restriction is set based on the degree of satisfaction that satisfies the restriction condition Cd. The gas hot water heater 1 is configured to be able to set any of warning, hot water restriction, and hot water supply stop as the hot water restriction. For example, the degree of satisfaction has reached 80% of the restriction condition Cd based on the degree of satisfaction satisfying the restriction condition Cd of “50 liters of hot water in a unit hot water supply operation in a hot water tap” and “400 liters of hot water in one hour from the start of hot water supply in a bathtub”. In the case (in the example, “40 liter hot water supply in unit hot water supply operation” “320 liter hot water supply in one hour”), notification (warning) to the user by warning sound and warning display from the input / output system I / O, satisfaction degree Reaches 90% of the limit condition Cd (in the example, "45 liter hot water supply in unit hot water supply operation" "360 liter hot water supply in one hour"), the hot water supply flow rate is supplied together with a warning from the input / output system I / O. Hot water supply (hot water supply restriction) limited to 60% of the hot water supply command flow rate from the tap and bathtub, and the degree of satisfaction is the restriction condition Cd (in the example, “unit hot water movement” In the case of “50 liter hot water supply” and “400 liter hot water supply in one hour”), the hot water supply restriction can be set such that the hot water supply is stopped immediately (warming water supply is stopped) together with a warning from the input / output system I / O. .

  In addition, the gas hot water heater 1 is configured so that it can be set to be excluded from the hot water supply restriction for each of the hot water utilization facilities F. That is, the restriction condition determination means 53 determines the degree of satisfaction that satisfies the restriction condition Cd with respect to the hot water supply state, and based on the determined degree of satisfaction, the hot water use facility F has priority over the hot water supply condition set in the facility. A hot water supply restriction target facility that performs hot water supply restriction and a hot water supply condition priority facility that prioritizes hot water supply conditions set in the facility and does not perform hot water supply restriction can be set alternatively. Thereby, the hot water supply restriction target facility can be set flexibly. For example, for a bathroom that uses hot water directly on the human body, it can be set that no hot water supply restriction is performed.

In addition, although hot water supply operation was demonstrated above, it can comprise similarly about the production | generation operation | movement of hot water accompanying a hot water filling operation, the chasing operation, or the chasing operation of hot water accompanying a heating operation.
That is, with respect to the operation accompanied by the hot water generating operation, it is provided with generation state adjusting means (modification of hot water supply state adjusting means 75) for adjusting the generation amount, generation heat amount or generation time of the hot water generated in the apparatus main body 1A, and the restriction condition The determination means 53 determines the degree of satisfaction that satisfies the restriction condition Cd with respect to the generation operation, and the generation state adjustment means determines the amount of hot water generated, amount of generated heat or generation time based on the determined satisfaction degree. It is configured to perform generation restriction that adjusts or restricts any one or more of the above.
As for the operation accompanied by the hot water pursuit operation, the chasing state adjusting means for adjusting the hot water pursuing amount, the calorific heat amount or the chasing time for the apparatus main body 1A (deformation of the hot water supply state adjusting means 75). ), And the restriction condition determination means 53 determines the degree of satisfaction satisfying the restriction condition Cd regarding the chasing operation, and the hot water supply to the hot water use facility F is performed by the memorial state adjustment means based on the determined degree of satisfaction. The apparatus is configured to perform a memorial restriction that adjusts or restricts any one or more of the memorial amount, the memorial heat amount, and the memorial time.
Further, the restriction condition determination unit 53 determines a satisfaction degree satisfying the restriction condition Cd regarding the use operation, and the set operation condition set in the hot water use equipment F for the hot water use equipment F based on the determined satisfaction degree. It is possible to alternatively set the operation restriction target equipment that restricts the operation in preference to the above, and the set operation condition priority equipment that does not restrict the operation given priority to the set operation condition set in the hot water use equipment F. Configure.

[Control of hot water supply monitoring]
Based on FIG.3 and FIG.4, the restriction | limiting conditions in the hot water supply heater 1 and the setting of the hot_water | molten_metal supply restriction | limiting and monitoring control of the hot water supply state are demonstrated.

[Setting of restriction conditions and hot water restrictions: Any time]
As shown in FIG. 3, the gas hot water heater 1 can set a hot water supply restriction based on a satisfaction degree that satisfies the restriction condition Cd and the restriction condition Cd, which are monitoring contents of the hot water supply state, at any time (S10). As described above, the restriction condition Cd and the content of the hot water supply restriction are set from the restriction condition setting means 51 through an input / output system I / O such as a remote controller. The hot water supply restriction is set in association with the degree of satisfaction that satisfies the restriction condition Cd. The restriction condition Cd and the hot water supply restriction can be set at any time, and can also be set for a specific future day, time zone or time.

[Monitoring hot water supply status: Always]
As shown in FIG. 4, in the gas hot water supply heater 1, the hot water supply state monitoring means 61 constantly monitors the hot water supply state in each of the hot water utilization facilities F (S20). The hot water supply state monitoring unit 61 obtains measurement information related to the hot water supply state from the measurement system S, and stores the information together with time information in the hot water supply result storage unit 62 as a hot water supply result.

As described above, the hot water supply state is constantly monitored by the hot water supply state monitoring means 61, but corresponds to the determination timing set in the restriction condition Cd, and when the unit hot water supply operation or the unit period is started, the restriction condition determination is performed. The means 53 determines the limiting condition Cd (S31: Yes → S32).
Examples of the unit hot water supply operation in which the limiting condition Cd is set include hot water supply to a kitchen hot water tap and hot water supply to a shower in the bathroom. In addition, the unit period in which the restriction condition Cd is set refers to, for example, “daytime (12:00 to 15:00)” or “one hour from the start of hot water supply”.
As described above, in the gas hot water heater 1, whether or not it is the timing for performing the determination based on the restriction condition Cd depends on the determination timing set in the restriction condition Cd and the hot water supply state and time information monitored by the hot water supply state monitoring unit 61. Based on this, the limiting condition determination means 53 always determines. In this way, in the gas hot water heater 1, since the restriction condition determination unit 53 always determines whether it is time to start the determination of the restriction condition Cd (S 31), there is no manual request from the user. However, when the determination timing set in the restriction condition Cd is satisfied, the restriction condition determination unit 53 can start monitoring the hot water supply state (determination of the restriction condition Cd).
On the other hand, when the determination timing at which the restriction condition Cd is set does not correspond, the restriction condition determination unit 53 does not determine the restriction condition Cd, and the gas hot water heater 1 continues to monitor the hot water supply state by the hot water supply state monitoring unit 61. (S31: No → S20).

When the limiting condition determination unit 53 determines the limiting condition Cd, the satisfaction degree that satisfies the limiting condition Cd is determined, and the hot water supply state adjustment unit 75 performs the hot water supply restriction target facility based on the determined satisfaction degree. Implement hot water restrictions. The hot water supply restriction is performed by controlling operations of the input / output system I / O and the adjustment system M by the hot water supply state adjusting means 75. The operation control means 45 continues monitoring the hot water supply state after performing hot water supply restriction corresponding to the degree of satisfaction satisfying the restriction condition Cd by the hot water supply state adjusting means 75 (S32 → S33: Yes → S34 → S20).
On the other hand, the hot water supply restriction is not performed for the hot water supply condition priority facility, and the hot water supply state is continuously monitored (S33: No → S20).

In addition, although hot water supply operation was demonstrated above, it can comprise similarly about the production | generation operation | movement of hot water accompanying a hot water filling operation, the chasing operation, or the chasing operation of hot water accompanying a heating operation.
In other words, in the above, the hot water supply state is the hot water generation operation or renewal operation, the hot water supply restriction is generation restriction or renewal restriction, the hot water supply state monitoring means 61 is the monitoring means, the hot water supply result accumulation means 62 is the actual result accumulation means, and the unit hot water supply operation is By replacing the unit operation, the hot water supply state adjustment means 75 with the generation state adjustment means or the memorial state adjustment means, the hot water supply restriction target equipment with the operation restriction target equipment, and the hot water supply condition priority equipment with the set operation condition priority equipment, For the hot water generation operation and the hot water pursuit operation accompanying the heating operation or the heating operation, the control of the restriction condition, the generation limit or the amendment restriction setting, the generation operation or the monitoring operation monitoring is similarly configured. be able to.

[Another embodiment]
Hereinafter, another embodiment of the present invention will be described.

(1) In the above embodiment, as an input / output system I / O for inputting a restriction condition to the restriction condition setting means, for a gas hot water heater installed around the hot water utilization facility F (hot water tap, heating terminal, bathtub) Although the remote control, the remote control for the heating terminal, and the operation panel of the operation control means 45 have been illustrated, these are only examples and can be appropriately modified. For example, the restriction condition may be input from a home personal computer and communicated to the operation control means. Modifications can be made as appropriate without departing from the scope of the present invention.

(2) In the above embodiment, the limiting condition setting means sets the upper limit value of the hot water supply amount, the hot water supply heat amount, the hot water supply time (the amount of hot water used, the generation amount, the amount of replenishment, the supply heat amount or the operation time) as the limiting condition. Although the configuration which can be set is illustrated, these limiting conditions are merely examples, and can be appropriately modified. For example, the restriction condition setting means may be configured to set the upper limit value of the hot water temperature as the restriction condition.

(3) In the above embodiment, for the purpose of improving energy saving and safety, upper limit values of measured values such as hot water supply amount, hot water supply heat amount, hot water supply time integrated upper limit value and hot water supply temperature upper limit value are set as limiting conditions. However, the setting of the upper limit value is merely an example, and can be appropriately modified according to the purpose.

(4) In the above embodiment, as a limiting condition, integration of any one or more of hot water supply amount, hot water supply heat amount or hot water supply time for any one or more per day, per predetermined time zone, and per predetermined time. Although the configuration in which the upper limit value can be set is illustrated, the restriction condition is merely an example, and can be appropriately modified.
For example, for one or more of one day, a predetermined time zone, a predetermined time, one year, six months, three months, one month, one week as exemplified above, It is good also as a structure which can set the accumulation upper limit of any one or more of hot water supply time.

(5) In the above embodiment, as the hot water supply restriction (generation restriction, memorial restriction), a configuration for adjusting or restricting any one or more of the hot water supply amount, hot water supply heat amount, or hot water supply time to the hot water use facility is exemplified. The restriction conditions are merely examples, and can be modified as appropriate. For example, it is good also as a structure which adjusts or restrict | limits the hot_water | molten_metal supply temperature to a hot-water utilization facility as hot water supply restriction | limiting.

(6) In the above embodiment, as the configuration for measuring the hot water supply state, the thermistor and water meter constituting the measurement system, and as the configuration for adjusting the hot water supply state, the arrangement of the burner, the adjusting valve, and the fan constituting the adjustment system Although an example is shown, the arrangement shown above is merely illustrative. That is, the arrangement and configuration of the devices shown in the above embodiments can be modified as appropriate without departing from the object of the present invention.

1 Gas water heater / heater (hot water supply device)
1A apparatus main body 6 hot water supply heat exchanger 8 heating terminal 10 bathtub 45 operation control means 46 timer 51 restriction condition setting means 53 restriction condition determination means 61 hot water supply state monitoring means (monitoring means)
62 Hot water supply results accumulating means (result accumulating means)
75 Hot water supply state adjustment means (generation state adjustment means, memorial state adjustment means)
Cd Restriction condition F Hot water use facility P Demand point

Claims (9)

An apparatus main body for generating or replenishing hot water to a hot water use facility installed at a demand point and supplying it,
Monitoring means for monitoring hot water use operation in the hot water use facility or hot water generation operation or memorial operation in the apparatus body;
A hot water supply device comprising temperature adjusting means for adjusting the temperature of hot water supplied to the hot water use facility,
Limit condition that can set a limit condition that is one or more accumulated upper limit values of hot water usage amount, generation amount, replenishment amount, supply heat amount or operation time in multiple operations within a unit operation or unit period Comprising setting means,
A hot water supply apparatus comprising a limiting condition determination unit that determines a degree of satisfaction that satisfies the limiting condition set by the limiting condition setting unit with respect to a use operation, a generation operation, or a chasing operation of the hot water monitored by the monitoring unit. One or more hot water use facilities are installed in each of a plurality of demand points,
In the configuration where the monitoring means monitors each use operation of the hot water use facility,
The hot water supply apparatus according to claim 1, wherein the restriction condition determination unit determines a degree of satisfaction that the monitored use operation satisfies the restriction condition.   The restriction condition setting means uses the hot water usage amount, generation amount, replenishment amount, supply heat amount, or any one or more of the restriction condition per day, per predetermined time zone, per predetermined time, or The hot water supply apparatus according to claim 1 or 2, wherein any one or more integrated upper limit values of the operation time can be set. Performance storage means for storing information on hot water use operation in the hot water use facility monitored by the monitoring means or hot water generation operation or memorial operation in the apparatus main body together with monitored time information as operation results. Prepared,
The hot water supply apparatus according to any one of claims 1 to 3, wherein the restriction condition setting unit can set the restriction condition based on the operation result accumulated in the result accumulation unit.   The hot water supply apparatus according to any one of claims 1 to 4, wherein the restriction condition setting means can set an upper limit value of hot water temperature as the restriction condition.   The hot water supply apparatus according to any one of claims 1 to 5, wherein the restriction condition setting unit can set the restriction condition in advance for at least one of a specific day, time zone, or time in the future. A production state adjusting means for adjusting the production amount, production heat amount or production time of hot water produced in the apparatus main body,
The restriction condition determining means determines a satisfaction degree satisfying the restriction condition with respect to the generation operation, and based on the determined satisfaction degree, the generation state adjusting means causes the production amount of the hot water to the hot water use facility, The hot-water supply apparatus as described in any one of Claims 1-6 which performs the production | generation restriction | limiting which adjusts or restrict | limits any one or more of produced | generated heat amount or production | generation time. A chasing state adjusting means for adjusting a chasing amount, chasing heat amount or chasing time of hot water chased in the apparatus main body,
The restriction condition determining means determines a satisfaction degree satisfying the restriction condition regarding the chasing operation, and based on the determined satisfaction degree, the chasing state adjusting means causes the hot water to be added to the hot water use facility. The hot water supply apparatus as described in any one of Claims 1-7 which performs the amendment restriction which adjusts or restrict | limits any one or more of the amount of dredging, the amount of additional heat, or the additional time.   The restriction condition determining means determines a satisfaction degree that satisfies the restriction condition regarding the use operation, and has priority over the set operation condition set in the hot water use facility for the hot water use facility based on the determined satisfaction degree. The operation restriction target facility for adjusting or restricting the use operation in the hot water use facility, and the setting for adjusting and restricting the use operation in the hot water use facility in preference to the setting operation condition set in the hot water use facility The hot water supply device according to any one of claims 1 to 8, wherein the operation condition priority facility is configured to be set alternatively.

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