TW576907B - Hot water supply device - Google Patents

Abstract

This invention provides a low cost hot water supplying device that can correspond to the reduction of the gas supply amount to the burner in response to an intentional and temporary reduction of the opening of the gas path but not in response to a temporary variation of the hot water supplying temperature. The hot water supplying device comprises a deviation measurement mechanism (42) for measuring the deviation between the target combustion amount (Q') set by the combustion controlling mechanism (41) and the combustion amount (Q) of the burner (1) based on the measured value (Theta1) of the water supply temperature measured by a water supply thermistor (36), the measured value (Theta2) of the hot water supply temperature measured by a hot water supply thermistor (37), and the measured value (v) of the water flow rate measured by a water flow rate sensor (35). In addition, a correction mechanism (43) is provided for reduction correction of the maximum value of the target combustion amount (Qmax') of the burner (1) based on the deviation measured by the deviation measurement mechanism (42).

Description

576907 A7 V. Description of the invention (1) <Technical field to which the invention belongs> The present invention relates to a hot water supply device including a burner; a fan is used to supply combustion air to the burner; a water passage is borrowed The water heated by the heat exchanger according to the combustion heat of the burner; the flowing water measuring mechanism measures the flowing water of the water passage; the water supply temperature measuring mechanism measures the water flowing in the water passage upstream of the side heat exchanger. Water supply temperature; hot water supply / reliance measuring mechanism, which measures the hot water supply temperature of the water passage downstream of the heat exchanger; combustion control mechanism, which sets the target of the burner Controlling the combustion amount of the delta hai burner to be consistent with the target combustion and heart rate, and the fan control mechanism is to control the rotation number of the fan to the target rotation number corresponding to the target combustion amount of the burner. &lt; Known technology &gt; In a hot water supply device, a gas tank is used as a gas supply source, etc., because the residual gas content in the gas tank is reduced. Where the secondary pressure is reduced, the pressure is controlled by an appliance. The secondary pressure of the gas passage of the device is reduced, and the amount of gas ejected from the tanker finally decreases sometimes. In this case, the fan is operated by the number of rotations of the fan in accordance with the amount of gas controlled by the hot water supply temperature to its set value, and the combustion air is supplied to the burner. For this reason, for a state of the burner with a large amount of gas in the service line, the line burns abnormally (σ complete sound), and may cause the burner to burn badly. "The complete sound is for the use located around the combustion device. For example, it may cause ear disturbance, which may worsen the user ’s mood (impression of the combustion device). A method of installing a house force sensor on the upstream side of the pressure control device of the gas passage is proposed as a simple method for measuring 1: Method (Special Opening: Scale Yan Ji | (2) GX297 Public Love) — ---___

A fright — (Please read the notes on the back before filling this page) -line ------ Γ- 576907 A7 B7 V. Description of the invention (2 6-26637, etc.). In addition, a method of reducing the opening degree of the gas passage for a while 'has been considered in conjunction with such a method of detecting a decrease in the J secondary pressure in response to whether the hot water supply temperature is temporarily reduced. &lt; Problems to be Solved by the Invention &gt; However, when a new pressure sensor is installed as in the former method, the manufacturing cost of the hot water supply device increases. In addition, as in the latter method, when the opening of the gas passage is temporarily reduced, the temperature of the hot water supply is also temporarily reduced, especially for users who use the bather, etc. who directly contact the supplied warm water with the user. not good. Here, a low-temperature hot-water supply device is provided, which is intended to reduce the amount of gas supplied to a burner and reduce the amount of gas supplied to a burner. Solve the problem. &lt; Means for Solving the Problems &gt; The hot water supply device of the present invention for solving the aforementioned problems includes: a deviation measuring mechanism, based on the measured value of the water supply temperature of the water supply temperature measurement mechanism, and the heat of the hot water supply temperature control device. The measured value of the water supply temperature ㊀2, and the measured value of the flowing water amount v of the aforementioned flowing water amount measuring mechanism, measure the deviation between the target burning amount Q 'of the aforementioned burner set by the aforementioned combustion control mechanism and the burning amount Q of the burner. ; A, the correction mechanism, based on the deviation determined by the deviation measurement mechanism, reduces the maximum value of the target combustion amount of the burner. If according to the present invention, if the gas supply to the burner is insufficient, the combustion amount Q of the burner does not reach the target combustion amount Q, according to the deviation between the two, this paper size applies the Chinese National Standard (CNS) A4 specification (210X29 ^ 1) (Please read the precautions on the back before filling in this page), OK 丨 -line 丨 576907 V. Description of the invention ((Please read the precautions on the back before filling in this page) It becomes larger and judges whether the burner The gas supply amount is not ^. Also, when the gas supply amount to the fuel = does not seem to be ^, then the maximum Qmax of the target fuel k is reduced and corrected to reduce and cancel the burn amount Q and the target combustion amount Q of the burner. To this end, # the target combustion amount Q at this t, with the excessive supply of combustion air, can prevent the abnormal combustion sound (, sound) of the burner, and at the same time prevent the burner from becoming a bad combustion state. In addition According to the present invention, the target combustion amount Q of the burner is measured in the hot water supply device based on the respective measured values of the existing water supply temperature measurement mechanism, hot water supply temperature measurement device, and water supply amount measurement device, and The deviation of the actual combustion amount Q. Therefore, it is not necessary to install a new pressure sensor, so it can be manufactured at low cost. Furthermore, when measuring the deviation, the gas supply to the burner will not be intentionally and temporarily reduced. Therefore, as the gas supply to the burner is reduced arbitrarily and temporarily, and the temperature of the hot water supply is not reduced temporarily, a hot water supply device that responds to the decrease in the gas supply of the burner can be realized.-线 | In addition, in the present invention, the deviation measuring mechanism is based on the target combustion amount Q of the burner set in accordance with the combustion control mechanism, the measured value of the hot water supply temperature of the hot water supply temperature control device ㊀2, and Deviation between the theoretical value of the water supply temperature Θ ㊀ 2-Q ′ / cv: C is the specific heat of water) calculated by the measurement value V of the water flow measurement mechanism, and the measured value θι of the water supply temperature of the water supply temperature control device, Measure the deviation of the target combustion amount Q of the burner from the combustion amount Q of the burner. If according to the present invention, the theoretical value of the water supply temperature θι is measured, and the water supply temperature 576907 A7 B7 V. Description of the invention (the deviation of the measured value Θ i at 4 degrees, the indirect measurement of the target combustion quantity Q of the burner, and the continuous combustion The deviation of the quantity Q can detect the decrease in the gas supply amount to the burner. Further, in the present invention, the deviation measurement mechanism is based on the target combustion quantity Q of the burner and the water supply set by the combustion control mechanism. The measurement value 供水 i of the water supply temperature of the temperature measurement mechanism, the theoretical value θ2 'of the hot water supply temperature calculated from the measurement value ¥ of the water flow measurement mechanism of the aforementioned water flow measurement mechanism, θ2' (= ㊀I + Q '/ CV: C is water Specific heat), and the deviation of the measured value ㊀2 of the hot water supply temperature of the hot water supply temperature control device described above, the deviation of the target combustion amount Q of the burner and the combustion amount Q of the burner is measured. According to the present invention, the measurement The deviation between the theoretical value 温度 2 of the hot water supply temperature and the measured value 热水 2 of the hot water supply temperature, and the indirect measurement of the deviation between the target combustion quantity Q 'of the burner and the actual combustion quantity Q It is possible to detect a decrease in the amount of gas supplied to the burner. In addition, in the present invention, when the deviation measured by the deviation measuring mechanism exceeds the first limit value and the accumulated time is more than a certain time, the correction is reduced. The maximum value of the target combustion amount of the aforementioned burner. According to the present invention, although the gas supply amount to the burner is only reduced temporarily, but it is judged that the aforementioned deviation is a temporary decrease, the gas supply amount can be reduced normally, The maximum value of the target combustion amount of the avoidance burner should not be reduced and corrected. The present invention further, when the aforementioned deviation measured by the aforementioned deviation measuring mechanism exceeds a second limit value larger than the first limit value, and the accumulation time is constant for a paper Standards apply Chinese National Standard (CNS) Α4 specifications (210X297). 7 (Please read the precautions on the back before filling this page), τ 576907% A7 B7 V. Description of the invention (compulsory stopping the burner before the time Burning combustion stop mechanism (Please read the precautions on the back before filling this page) If according to the present invention When the maximum value of the target combustion amount is reduced, the abnormal combustion sound (beep sound) of the burner can be suppressed. Even if the incomplete combustion of the burner can be avoided, the gas amount is significantly reduced in maintaining the available hot water supply. It is possible to avoid the situation in which hot water supply is continued when the hot water supply temperature cannot be maintained at its set value. This description also includes a reporting mechanism that notifies the point that the aforementioned correction mechanism reduces the maximum value of the target combustion amount of the burner. ， V 一口-According to the present invention, the user of the combustion device can be made aware of the primary pressure drop of the gas passage reported by the reporting mechanism. In addition, when the gas supply source is a gas cylinder, the user can also be made aware of the gas The amount of gas in the barrel has gradually decreased, and the gas can be urged to be refilled or replaced. &lt; An embodiment of the invention &gt; An embodiment of the hot water supply device of the present invention will be described with reference to drawings. Fig. 1 is a structural explanatory diagram of a hot water supply device according to this embodiment, -line | Fig. 2 is a functional explanatory diagram of a hot water supply device according to this embodiment. The hot water supply device shown in FIG. 1 includes a burner, a gas passage 2, a water passage 3, and a control unit 4. The gas passage 2 is used to supply fuel gas to the burner 1; the water passage 3 is The water heated by the combustion heat of the burner 1 flows; the control unit 4 'controls the hot water supply operation and the like. There is no ignition electrode 11, fan 12 and flame rod 13 near the combustion chamber 1. The ignition electrode 11 is used to ignite the gas supplied by the gas passage 2; the fan 12 'is used to supply combustion air to the burner 1; the flame The rod 13 is used to detect the paper size of the paper. The Chinese national standard (CNS) A4 specification (210X297 mm) is applicable. 576907 A7 B7 V. Description of the invention (6 Burning state of the burner. (Please read the precautions on the back before filling this page) ) In the gas passage 2, the gas source solenoid valve, the gas solenoid valve 22, and the gas supply to the burner 1 are sequentially controlled by the upstream, and a regulator regulating valve is provided to adjust the primary pressure of the upstream side to 2 on the downstream side. The secondary pressure channel τ is composed of a water supply path 31, a heat exchange path 33, and a hot water supply path 34. The heat exchange path 33 is connected to the downstream side of the water supply path 31 and corresponds to the heat exchanger 32. The hot water supply path 34 is located on the downstream side of the heat exchange path 33. In the water supply path 31, a flow amount sensor (flow amount measurement mechanism) 35 and a water supply thermistor (water supply temperature measurement mechanism) are arranged in order from the upstream. 36, The water supply The sensitive resistor 36 measures the water supply temperature ㊀! A hot water supply sensor 37 (hot water supply temperature measuring device) for measuring the hot water supply temperature ㊀2 is provided in the hot water supply path 34. -line | Control unit 4 includes combustion control The mechanism 41, the deviation measuring mechanism 42, the correction mechanism 43, the combustion stop mechanism 44, and the notification mechanism 45. The combustion control mechanism 41 sets a target combustion amount of the burner, and simultaneously controls the combustion amount of the burner 1 to be consistent with that. Target combustion amount; the deviation measuring mechanism 42 is a deviation between the target combustion amount Q of the burner i and the combustion amount Q of the burner 1 according to the aforementioned water supply temperature measuring mechanism to measure the measured value of the water supply temperature ㊀ 丨 as described later; The mechanism 43 is based on the deviation measurement mechanism 42 to reduce and correct the maximum value of the target combustion amount Q'max of the burner as described later; the combustion stop mechanism 44 is forcibly stopping the combustion when the conditions described later are met Burner of the burner 1; the notification mechanism 45 is based on the correction mechanism 43 which will reduce the maximum value of the target burn amount of the burner 1 to correct the main point ^ report by LED visual . Further, even if the notification means 45 to the alarm sound burner i

576907

DESCRIPTION OF THE INVENTION The maximum value of the target combustion amount Q'mu may be reported audibly. The operation of the hot water supply device having the aforementioned structure will be described with reference to FIG. 2. First, water flows to the water passage 3, and when the amount of flowing water measured by the flowing water amount sensor 35 reaches a certain amount or more, combustion is started by the combustion control mechanism 41 § l (sl). In detail at that time, first, the combustion control mechanism 41 depended on the flowing water amount sensor 35, based on the set value v2 of the hot water supply temperature set by the transmission measurement value v, the specific heat of water c, and the setting button (not shown), and the previous time. The theoretical value ㊀i, of the feedwater temperature, which will be described later, is obtained during the hot water supply operation, and the target combustion amount Q of the burner is set, (= cv (e2, 1㊀〆)). In addition, the fan is supplied with a target current corresponding to the target combustion amount Q, and the combustion air corresponding to the target combustion amount Q 'is supplied to the burner 1. Further, the ignition electrode i i is operated to open the gas source solenoid valve 21 and the gas solenoid valve 22, and adjust the opening degree of the regulator regulator valve 23 so that the gas is supplied to the burner 1 in accordance with the target combustion quantity q. The gas combustion burner 1 supplied to the burner 1 is ignited by the ignition electrode. In addition, according to the hot water supply thermistor 37, the theoretical value of the water supply temperature 2i, (= 0 2—Q '/ cv) is updated one by one in accordance with the measured value Θ 2 of the measured hot water supply temperature, etc. The target combustion amount Q '(= CV (㊀ 2'-θ 1 ')) is updated. After the hot water supply operation is started, the flowing water amount v, the water supply temperature ㊀ :, and the hot water supply temperature e2 (s2) are determined in accordance with the flowing water amount sensor 35, the water supply thermistor 36, and the hot water supply thermistor 37, respectively. The parameter p (s3) is calculated by the deviation measuring means 42. The parameter p is based on the measured value of the water supply temperature of the thermistor 36 based on the water supply Θ i, and the hot water supply of the thermistor 37 based on the hot water supply 10 (please read the precautions on the back before filling this page)-line-this paper The scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (2) 576907 V. Description of the invention (8) The measured value of the brewing degree ㊀2 and the theoretical value 供水 1 of the water supply temperature are calculated according to the following formula. ρ === (θ2- Θ i ') / (θ2— Θ 1 = (θ 1- Θ i') / (θ2-㊀ 〇 ·· (!) Here, the theoretical value 供水 i of the water supply temperature will be described. Let the specific heat of water be c according to the measured value v of the flowing water amount of the flowing water amount sensor 35, the measured value Θ 2 of the hot water supply, and the target burning amount Q of the burner 1 set by the combustion control mechanism 41. Calculate the following formula: ㊀ 1 Θ 2— Q ， / Cv · · That is, the deviation measurement mechanism 42 is the deviation of the target combustion amount Q of the burner} and the continuous combustion material Q, which represents the theoretical value of the water supply temperature. ㊀1, the deviation from the measured value ㊀1, depending on the measured value of hot water supply and water supply temperature ㊀2 — Θ i is measured indirectly through the dimensionless parameter p. Second, the correction mechanism 43 calculates according to the deviation measurement mechanism 42 The parameter p is memorized and held in the data storage device (not shown), and the cumulative time t (s4) exceeding the 丨 limit value α! (&Gt; 〇) is measured. The i-th limit value α! And the parameter p exceed this level The deviation between the measured value 01 and the theoretical value 01 of the water supply temperature, that is, the target combustion amount Q of the burner 1 and the actual combustion amount When the deviation of Q becomes larger, the amount of combustion air to the gas ejection amount of the burner 1 increases, and it is set on the basis of the so-called abnormal combustion sound (beep sound) of the burner 1 and incomplete combustion that easily causes the burner. After the actual combustion amount Q of the burner 丨 is insufficient for the target combustion 篁 Q, since the theoretical value Θ i ′ to the measured value 供水 i of the water supply temperature decreases, the parameter can be understood from the formula (1) above.

The accumulation time t becomes longer, and the pressure in the gas passage 2 decreases once, indicating that the paper size of the burner J applies the Chinese National Standard (CNS) A4 specification (210X297 mm)

Order | (Please read the notes on the back before filling in this page) 576907 A7 ___ B7 V. Description of the invention (9) The gas supply is gradually decreasing. Then, the correction mechanism 43 judges whether or not the accumulated time should be equal to or more than a certain time r (s5). When the accumulation time t reaches a certain time ^ (when yes is considered) and the first limit value "1 has not reached the second limit value α2 (&gt; the initial limit value in the initial stage (NO at s6)), the correction mechanism 43 only decreases Correct the combustion target 'Maximum Qmax in the combustion, (s8). At this time, the notification mechanism 45 reports the key points for performing the correction. As the maximum value of the target combustion amount Qmax of the burner decreases, the correction is provided for combustion. The maximum value of the target rotation number of the fan 12 from the air to the burner 丨 is also reduced and corrected. This is to supply too much combustion air to the target combustion amount Q 'of the burner 丨 in order to prevent the burner i from causing 70% full combustion In addition, the correction mechanism 43 only corrects the first summer limit value α by increasing △ α. Furthermore, after repeating the aforementioned processes S2 to s8, the first limit value "1 is gradually increased and corrected to the second limit value ~ (refer to s8) The deviation between the second limit value ^ and the measured value 供水 i and the theoretical value 为止 ^ of the water supply temperature up to this point, that is, the deviation from the target combustion amount Q of the burner 丨 and the actual combustion amount q becomes larger. Afterwards, the gas amount towards the burner The reduction in water flow rate (hot water supply) is maintained, while the hot water supply temperature ㊀ ^ is difficult to be maintained at a set value of Θ 2, which is set as the benchmark. In addition, the first ground limit value starts from the beginning When the number of corrections is increased three times, and the correction is increased only a certain number of times (refer to s9), the width of the increase correction Δ α is appropriately set to reach the second limit value α 2. Moreover, even if the correction width Δ α is increased, it may not be necessary. Yes, that is, it can be set to a different width. In addition, even if the deviation from the measured value θι is set based on the theoretical value 01 of the water supply temperature, the paper size is defined as Guan Jiaxian (CNS) M specifications.

(Please read the precautions on the back before filling this page) • Order--line | 576907 A7 V. Description of the invention (10 (Please read the precautions on the back before filling out this page) Then 'When the parameter P exceeds the 2nd limit If the value is α 2 and the accumulated time t is equal to or greater than a certain time r (YES at s5 and 8 at #), the combustion of the burner 1 is forcibly stopped according to the combustion stop mechanism 44 (s7). The water supply device judges the burner indirectly through the parameter p (refer to formula 0) indicating the deviation between the measured value Θ i and the theoretical value ㊀ i of the water supply temperature! The difference between the combustion amount Q and the target combustion amount Q, or the decrease in the primary pressure of the gas passage 2 is one. In addition, by reducing the maximum value Qmax of the target combustion amount of the burner 1 in response to the decrease in the primary pressure, it is possible to avoid various disadvantages associated with the decrease in the primary pressure in the gas passage 2. . 、 可 | -line | Specifically, first, when the parameter p exceeds the second limit value α 2 and the accumulation time t is a certain time ^ or more (YES in FIG. 2 S5), the goal of correcting burner 1 is reduced. The maximum value of the combustion amount Qmax, (Figure 2). The parameter p exceeding the first limit value α! Indicates that, as described above, when the abnormal combustion sound (beep sound) occurs in the burner, the primary pressure of the passage 2 is reduced to the extent that the burner 1 is liable to cause incomplete combustion. Therefore, according to the reduction of the maximum value of the target fuel quantity Qmax of the burner, the reduction correction can prevent the abnormal combustion sound and incomplete combustion of the burner 1 from occurring as the pressure of the gas passage 2 decreases. Suppressing the abnormal combustion sound of the burner 1 can avoid the unpleasant feeling given to the user. In addition, suppression of incomplete combustion of the burner 1 can avoid a harmful environment. In addition, when the parameter p exceeds the second limit value α 2 ', when the accumulation time t reaches a certain time τ (YES in s5 in FIG. 2 and YES in s6), the combustion of the burner 1 is forcibly stopped (s7 in FIG. 2) . The parameter p exceeds the second limit value "2" means that, as mentioned above, the 1st pressure of the gas passage 2 is significantly reduced, which can maintain 13 ^ 76907 A7 Γ __________ Β7 ____

V. Description of the invention (11) 1 &quot; ^ sS In the case of the amount of hot water supply, it is difficult to keep the hot water supply temperature at a set value ㊀2. Therefore, because the combustion of the burner 1 is stopped, the temperature of the hot water supply ㊀2 in the water supply is lower than the set value ㊀2 in order to maintain the hot water supply temperature ㊀2 at a fixed value ㊀2, The hot water supply of the hot water # should be reduced, and the hot water supply operation can be continued, which can avoid the user's discomfort. ^ Furthermore, the user of the combustion device can be made aware of the decrease in the gas passage I reported by the notification mechanism 45. In addition, When the gas supply source is an I bucket, users can also be made aware that the amount of gas in the gas bucket has been gradually reduced, and they can urge the gas to be refilled for gas buckets. In addition, the hot water supply device is based on the existing flow of water. The respective measured values of the quantity sensor 35, the water thermistor 36, and the hot water supply thermistor 37 are used to indirectly measure the target combustion amount Q 'and the actual combustion amount of the burner through the parameter p (refer to formula (1)). The deviation of Q. Therefore, since no new pressure sensor is required to be installed in the gas passage 2, the manufacturing cost can be reduced. Further, the amount of gas supplied to the burner when measuring the deviation is measured. Unable to reduce temporarily. Therefore, with the intention and temporary reduction of the gas supply to the burner 1, it cannot be accompanied by a temporary reduction of the hot water supply temperature Θ 2, and it is possible to respond to the reduction in the gas supply of the burner. In this embodiment, the deviation between the target combustion amount Q of the burner and the actual combustion amount | Q is measured indirectly through the deviation between the measured value 01 of the water supply temperature and the theoretical value θ1, but even through heat, The deviation between the measured value of the water supply temperature ㊀2 and the theoretical value ㊀2 'indirectly determines the target combustion amount Q of the burner 丨, and the actual burning paper size Applicable Financial Standards (CNS) A4 specification (210X297 mm; — ^

576907 A7 £ 7_ V. Description of the invention (12) The deviation of the burning amount Q can be used as another embodiment. In violation of ▲ other conventional implementations, the theoretical value of the hot water supply temperature ㊀ 2 is the same as the theoretical value of the water supply temperature ㊀ 1 calculated according to the above formula (2). Similarly, the specific heat of water is taken as c, and the amount of flowing water is used. The sensor 35 is calculated according to the following formula (3) based on the measured value V of the flowing water amount, the measured value of the water supply temperature, and the target combustion amount Q of the burner 1 set by the combustion control mechanism 41. Θ 2 '= θ 1 + Q' / cv · (3) Even if the target combustion amount Q of the burner i is directly measured, the deviation from the actual combustion amount Q may be used as another embodiment. In other embodiments, the combustion quantity q of the burner 1 is based on the specific heat of water as C, and the flowing water quantity sensor 35 is based on the measured value V of the flowing water quantity, the measured value 供水 1 of the water supply temperature, and the measurement of the hot water supply temperature. The value ㊀2 is calculated according to the following formula (4). Q = cv (9 2 — Θ small · (4) In this embodiment, the water passage 3 is composed of a water supply passage 31, a heat exchange passage 33, and a hot water supply passage 32. As for other embodiments, it is here The external flow water sensor 35 is installed downstream from the water supply channel, and merges with the bypass channel of the hot water supply channel 34 without passing through the heat exchange channel 33 (not shown). Even if a bypass regulating valve is provided to adjust the bypass ratio r Yes. Even in other embodiments, the hot water supply thermistor 37 is installed at the confluence place of the hot water supply path 34 and the bypass passage, and it is not required to be installed downstream, regardless of the bypass ratio. The theory of calculating the water supply temperature can be calculated. The value ㊀i, and the hot water supply temperature θ2 '. The hot water supply thermistor 37 is installed in the bypass of the hot water supply path 34. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297). 15 (please first (Read the notes on the back and fill out this page)

Order I-line-576907 V. Description of the invention (i3 Road: the place downstream of the flow place 'theoretical value of water supply temperature㊀ 丨', the theoretical value of hot water supply temperature%, and the amount of combustion Q, according to the above formula ⑺ (3) (4) Calculate. On the one hand, when the hot water supply thermistor 37 is installed downstream of the confluence space of the bypass of the hot water supply path 34, the theoretical value of the water supply temperature ㊀ 1 ', the hot water supply temperature The theoretical value ㊀2, and the combustion amount Q are in the above formula ⑺⑺⑷, and the amount of flowing water ν is changed to (1-〇ν, and calculated according to the following formula (5) (6) ⑺.) ㊀ Γ = e2-Q, / c (l-r) v © 2 '= © i + Q' / c (l — r) v Q = c (l — 〇ν (θ2-㊀ 〇 (5) (6) ⑺) A reduction in the primary pressure of the gas passage 2 can suppress the occurrence of the abnormal combustion sound of the burner 1. &lt; Simplified description of the drawing &gt; Fig. 1 is an explanatory diagram of the structure of the hot water supply device of this embodiment. Figure 2 is a functional illustration of the hot water supply device of this embodiment (Please read the precautions on the back before filling this page)

This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 16 576907 A7 B7 V. Description of the invention (14) Component number comparison 1 ... Burner 3 ... Water channel 3 5 ... Flow sensor 41 ... Combustion Control mechanism 43 ... correction mechanism 45 ... notification mechanism 2 ... gas passage 32 ... heat exchanger 36 ... hot water supply thermistor 42 ... deviation measuring mechanism 44 ... combustion stop mechanism (please read the precautions on the back before filling in this Page) This paper size is in accordance with China National Standard (CNS) A4 (210X297 mm) 17

Claims (1)

576907 ABCD VI. Application Patent Range No. 91111985 Patent Application Amendment Range 92 · 11 · 19 1. A hot water supply device comprising: a burner; a fan for supplying combustion air to the burner; The water passage is used to pass the water heated by the combustion heat of the burner through the heat exchanger; the water flow measurement mechanism is used to measure the water flow in the water passage; the water supply temperature measurement mechanism is used to measure the heat exchange The water supply temperature of the water passage upstream of the water heater; the hot water supply temperature measurement mechanism measures the hot water supply temperature of the water passage downstream of the heat exchanger; the combustion control mechanism sets the target combustion amount of the burner, and Controlling the combustion amount of the burner to be consistent with the target combustion amount; and a fan control mechanism for controlling the number of rotations of the fan to a target number of revolutions corresponding to the target combustion amount of the burner, the hot water supply device is more Including: the deviation measuring mechanism, based on the measured value Θ 丨 of the water supply temperature of the water supply temperature measurement mechanism, the hot water supply The measured value 热水 2 of the hot water supply temperature of the temperature control device and the measured value V of the flowing water amount of the aforementioned flowing water amount measuring mechanism are used to measure the target burning amount Q 'of the aforementioned burner set by the aforementioned burning control mechanism and the The deviation of the combustion amount Q; and, the correction mechanism is based on the Chinese paper standard (CNS) A4 specification (210X297 mm) according to the paper size of the partial paper measured by the deviation measurement mechanism. 18 576907 Λ B c D The difference 'reduction' corrects the maximum value of the target combustion amount of the burner. 2. If the hot water supply is provided in item 1 of the scope of the patent application, the deviation measurement mechanism is based on the target combustion amount Q of the burner set by the combustion control mechanism, and the temperature of the hot water supply temperature control device. Measured value of hot water supply temperature ㊀2. Theoretical value of water supply temperature 前述 1 '(= e2-Q' / cv: C is the specific heat of water) calculated from the measured value V of the flowing water amount of the aforementioned flowing water amount measuring mechanism, and before The deviation of the measured value ㊀ of the water supply temperature of the water supply temperature control device is measured, and the deviation of the target combustion amount Q of the burner from the combustion amount Q of the burner is measured. 3. If the hot water supply device according to item 1 or 2 of the scope of patent application, the aforementioned deviation measurement mechanism is based on the target combustion amount Q 'of the burner set according to the aforementioned combustion control mechanism, and the aforementioned water supply temperature measurement mechanism. The measured value of the water supply temperature ㊀ 丨, the theoretical value of the hot water supply temperature θ2 'calculated from the measured value V of the flowing water amount of the flowing water amount measuring mechanism (= Θ i + Q' / CV: C is the specific heat of water) And the deviation of the measured value ㊀2 of the hot water supply temperature of the aforementioned hot water supply temperature control device, the deviation of the target combustion amount Q of the burner and the combustion amount Q of the burner is measured. 4 * If the hot water supply device according to item 1 or 2 of the patent application scope, wherein the aforementioned correction mechanism reduces the aforementioned correction when the aforementioned deviation measured by the aforementioned deviation measuring mechanism exceeds the first limit value and the accumulated time is more than a certain time The maximum value of the target burn amount of the burner. 5. If the hot water supply device in the scope of patent application No. 4 further includes a combustion stopping mechanism, the combustion stopping mechanism is applicable to the paper size according to the aforementioned deviation measurement mechanism + home standard (CNS) A4 specification (21QX297) — 19 ^ / 0907 ^ / 0907 Λ8 B8 When the aforementioned deviation measured in the patent scope exceeds the second limit value which is greater than the first limit value and the accumulation time is more than a certain time, the combustion of the burner is forcibly stopped. 6. If the hot water supply device according to item 1 or 2 of the scope of patent application, it further includes a notification mechanism for reporting the main point of reducing the maximum value of the target combustion amount of the burner previously corrected by the aforementioned correction mechanism. Binding ‘t 20