KR100472066B1 - Oil boiler's initial temperature export hot water temperature control device and method - Google Patents

Abstract

The present invention relates to an initial hot water hot water temperature control device and method of the oil boiler, in particular, the hot water water supply pipe 151 between the hot water discharge pipe 15 and the direct water pipe 13 of the heat exchanger 27 during heating use. When the water flow switch 17 is "on" due to the opening of the oil boiler is installed by installing a bypass valve 18 that receives a predetermined drive signal from the control unit 9 and opens for a predetermined time and automatically closes. When the water valve for hot water is opened to use hot water during use, the bypass valve automatically opens and closes only for a certain time, so that cold water is mixed with the hot water heated in the heat exchanger during the heating operation. When hot water is used, hot water can be supplied at a suitable temperature to prevent the occurrence of safety accidents (eg burns) due to hot water discharge.

Description

Initial hot water tap water temperature control device of oil boiler and its method

The present invention relates to an initial hot water hot water temperature control apparatus and method for an oil boiler, and in particular, by installing a bypass valve between the hot water discharge pipe and the direct water pipe of the heat exchanger, the hot water accumulated in the heat exchanger during heating is heated. Opening the hot water valve to the hot water is discharged because the hot water is discharged to prevent the user from being burned in advance relates to an initial hot water hot water temperature control device and method of the oil boiler.

In conventional oil boilers, no bypass pipes and valves are installed between the hot water discharge pipe and the direct water pipe of the heat exchanger, so that hot water and cold water do not mix with each other. The drive is stopped and only the hot water heating function is performed, and no judgment or recognition function of the hot water flow is provided.

However, when operating the boiler in the heating function, the hot water accumulated in the hot water heating part side of the heat exchanger becomes hot due to the heating. In this state, when the water valve for the hot water is opened to use the hot water, the water is collected in the heat exchanger. There was a problem that the high temperature water that was present flows out and the user is burned.

An object of the present invention is to open the water valve for hot water in order to use hot water during heating, the bypass valve installed between the hot water discharge pipe and the direct water pipe of the heat exchanger is automatically opened and closed only for a predetermined time so that the cold water in the hot water It is to provide an initial hot water hot water temperature control device and method of the oil boiler that can be mixed with the hot water to discharge the appropriate temperature, thereby preventing the risk of burns due to hot water discharge in advance.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the oil boiler to which the present invention is applied includes a control unit 9 installed in a casing 1 to which a remote controller or a manual operation device 4 is connected to the outside to control the overall operation of the oil boiler; A combustor 2 for burning oil to heat heating water and hot water; The water tank (3) for storing the heating circulation water is constituted by mutually coupling.

At this time, the combustor 2 is provided with a burner 5 for combusting oil supplied to one side of the cylindrical combustion chamber 21 in which the heating water return path 211 is formed at the periphery of the combustor 2. A heat exchanger 27 having a configuration in which a heating water heating unit 271 and a hot water heating unit 272 are sequentially stacked is installed at an upper portion thereof, and a bimetal for preventing a fire due to overheating is provided outside the combustion chamber 21. (22) is installed, near the burner (5) is connected to the sparker plug 24 connected to the sparker 23 for igniting the burner and the ignition detection sensor (25) for detecting the ignition of the burner and combustion air A blower 26 for supplying is provided, and an exhaust portion 28 for discharging the exhaust gas is provided through the casing 1 of the boiler on the upper surface of the heat exchanger 27.

In addition, between the rear of the burner 5 and the oil tank, the fuel filter 51 for filtering the foreign substances contained in the oil and the pump 52 for forcibly supplying the oil and the fuel 52 are preheated to vaporize the fuel. A fuel preheater 53 for giving is provided.

In addition, the water tank 3 has a float switch 31 for detecting the quantity of water in the water tank, the overflow pipe 32 for discharging excess water, and the heating water rotated by the heating pipe 6. The bypass pipe 7 which guides into the water tank is provided.

In addition, between the heating water discharge hole 27a formed in the heating water heating unit 271 of the heat exchanger 27 and the heating water return hole 21a of the combustion chamber 21, a heating pipe 6 and a heating procedure The separator 11 for discharging the air contained in the outside and the circulation pump 10 for forcibly circulating the heating water are installed, wherein the separation from the water between the separator 11 and the water tank (3) A water supplement pipe 12 for discharging the air to the outside through the water tank and replenishing insufficient heating water is installed, and a user is provided between the water inlet of the radiator 11 and the water pipe 13. A water supply pipe 14 having a manual supply valve 141 selectively opened and closed is installed, and a dummyster 273 for detecting a tapping temperature of heating water is installed around the heating water discharge hole 27a, and a casing (1) is provided. In the inside, the control unit 9 detects the outside temperature and executes the freezing operation. The more Mr. Freeze Protection (8) for determining is installed.

In addition, the control unit 9 is selectively driven between the heating water discharge hole 27a of the heat exchanger 27 and the heating water heating unit 271, the heating pipe 6, and the water supplement pipe 12 to provide hot water. In use, a three-way valve 16 is installed to prevent the heating water from being discharged to the heating pipe 6 side.

In addition, a water inlet hole 27b formed at the bottom of the hot water heater 272 of the heat exchanger 27 is connected to a straight pipe 13 such as a water pipe, and the freeze pipe 13 has a freeze protection heater 131. And an overpressure preventing valve 132 is installed and a water flow switch 17 for detecting the use of hot water as an electrical signal and outputting it to the control unit 9 is provided, and the water discharge formed in the upper portion of the hot water heating unit 272 is provided. The hot water discharge pipe 15 having the water valve 151 is connected to the ball 27c.

In addition, the casing 1 is provided with a low-temperature sensing bimetal 19 for preventing the temperature of the outside air from falling below a predetermined temperature and notifying the control unit, a power transformer T, and the like.

On the other hand, the apparatus of the present invention, as shown in Figure 1, in the oil boiler as described above, between the hot water discharge pipe 15 and the water pipe 13 of the heat exchanger 27, the water valve 151 for hot water during heating use When the water flow switch 17 is "on" due to the opening of the bypass valve 18 is opened for a predetermined time by the drive signal output from the control unit 9 and is automatically closed.

In this case, the bypass valve 18 may be a receiver valve, a geared valve and a synchronous motor valve.

The control unit 9 is configured around the microcomputer 90 as shown in the second diagram, and the microcomputer 90 has a water flow detection unit 91 for detecting the flow of water through the output signal of the water flow switch 17. ; A selection function operation determination command unit 92 which receives the output signal of the remote controller or the manual operation apparatus 4 through the data transmission / reception unit 41, determines a user selection function, and generates a command accordingly; A mode command unit 93 which receives an output signal of the selection function operation determination command unit 92 and commands a command corresponding to the function mode; A timer 94 which receives the output signal of the oscillator 29 and counts the time required by each part of the system; The external input determination command unit 95 under the control of the timer 94 and receiving the output signals of the water flow detector 91 and the mode command unit 93 to determine the state of each unit to generate a predetermined control signal. Wow; A next execution command unit 96 which receives an output signal of the external input determination command unit 95 and determines a function to be transferred next; A functional part controller 97 for receiving the control of the timer 94 and receiving the output signal of the next execution command unit 96 to selectively drive each functional part; Characterized in that the control signal output group 98 for selectively outputting the signals output from the functional component control unit 97 to the bypass valve 18 through the bypass valve drive unit 30.

In addition, the microcomputer 90, the water level detection unit for detecting the water level in the water tank through a float switch; A flame detector for recognizing whether the burner is on fire through an output signal of the flame detector; A passive intermediate fuel valve state detection unit detecting whether a passive intermediate fuel valve installed between the fuel tank and the burner is opened; A tapping temperature recognizing unit configured to detect an tapping temperature of the heating water by receiving an output signal from the dummy water 273 for detecting the tapping temperature of the heating water installed in the heat exchanger; A temperature comparison unit under the control of the timer 18 and receiving and comparing the user setting temperature output from the mode command unit 19 and the tapping temperature output from the tapping temperature recognition unit; A combustion operation driver configured to receive a predetermined signal from the external input determination command unit and the temperature comparison unit, respectively, to perform combustion and operation functions; A combustion control unit for receiving a control signal of the timer 18 and receiving an output signal of the next execution command unit and generating a predetermined control signal for each functional part necessary for combustion is further provided, which is not required to be mentioned in the present invention. Subsequently, the illustration is omitted.

In addition, the remote control or the manual operation device 4 is provided with an operation on / off operation unit, a heating / hot water selection unit, a heating and hot water temperature setting unit, a 24-hour mechanical timer, an operation state display unit, and a temperature state display unit. .

On the other hand, the method of the present invention, as shown in Figure 3, when the power cord is "on" and the operation switch is "on" in the remote control or manual control device (4) detects whether the heating / hot water combined mode, if Performing a normal operation according to the hot water mode; Continuously detecting whether the water flow switch 17 is in the "on" state due to the use of hot water when the heating / hot water combined mode is detected as the result of the detection; When the water flow switch 17 is "on" and a few seconds (X sec) elapses, the bypass valve 18 is opened for a predetermined time (Y sec) while the water flow switch 17 is "on" for a predetermined time (Y). detecting whether "off" before sec) has elapsed; If the water flow switch 17 is "off" before the predetermined time (Y sec) has elapsed, the water flow switch 17 is again "on" while maintaining the open state of the bypass valve 18 until the predetermined time elapses. Detecting whether it is; If the water flow switch 17 is not "on" again, the bypass valve 18 is closed after a certain time (Y sec) has elapsed from the time when the water flow switch 17 is "on". If the water flow switch is "on" again before a certain time (Y sec) has elapsed from the time (17) is "on", the previous water flow switch 17 is "on", so the counted time is cleared and It counts again (Y sec) and is characterized in that the process made to return to the process of detecting whether the water flow switch 17 is "off" again.

Referring to the effects of the present invention as follows.

First, the main technical configuration of the present invention is because the hot water valve 151 is opened during the use of the hot water when the hot water is discharged from the heat exchanger 27 due to the already hot water accumulated in the heat exchanger (27) That is, the cold water is mixed with the hot water heated in the heating mode to discharge the hot water at an appropriate temperature, and the water receiver valve and the gear valve are connected between the hot water discharge pipe 15 and the direct water pipe 13 of the heat exchanger 27. And by installing a bypass valve 18 made of a synchronous motor valve, such that the bypass valve 18 is automatically opened for a predetermined time when the hot water valve 151 is opened during heating use.

Of course, the bypass valve 18 is selectively opened and closed by the electrical signal output from the control unit (9).

In addition, the control unit 9 can open the bypass valve 18 only when the use state of the hot water can be known. For this purpose, the water flow switch 17 is installed in the direct pipe 13 and the control unit 9 The user receives the water flow detection unit 91 for detecting the flow of water through the output signal of the water flow switch 17 and the output signal of the remote controller or the manual operation apparatus 4 through the data transmission / reception unit 41. And a command for a function mode corresponding to the output signal of the selection function operation determination command unit 92 while incorporating a selection function operation determination command unit 92 for generating a predetermined control signal by judging the selection function. The mode command unit 93 and the output signal of the oscillator 29 are input, and the timer 94 for counting the time required by each unit of the system and the flow control unit 91 under the control of the timer 94 and The output signal of the mode command unit 93 is respectively Also included is an external input determination command unit 95 which receives the input and determines the state of each unit to generate a predetermined control signal.

In addition, a next execution command unit 96 that receives the output signal of the external input determination command unit 95 and determines a function to be transferred next, and a functional part control unit 97 for selectively driving respective functional parts. ), The control signal output group 98 for selectively outputting the signals output from the functional component control unit 97 to the bypass valve 18 through the bypass valve driving unit 30, the hot water during heating When the water valve 151 for hot water is used to open the hot water, the cold water is mixed with the hot water discharged from the heat exchanger 27 in a high temperature state, thereby preventing the risk of burns due to the discharge of hot water.

In other words, as shown in FIG. 3, if it is determined by the microcomputer 90 in the control unit 9 that the operating switch of the remote controller or the manual operation apparatus 4 is operated by the user in the state where the power cord of the oil boiler is plugged in, The selection function operation determination command unit 92 which receives the output signal of the remote controller or the manual operation apparatus 4 through the data transmission / reception unit 41 detects whether the mode set by the user is a heating / hot water combined mode.

As a result, in the hot water exclusive mode, the three-way side 16 performs the normal operation according to the hot water mode in a state in which the heating pipe 6 is blocked. In this state, the burner 5 is burned unless hot water is used. Since the function is not performed, there is no fear that the hot water accumulated in the heat exchanger 27 is deteriorated at all.

Therefore, since the user opens the water valve 151 for the hot water and uses the hot water, the bypass valve 18 installed between the hot water discharge pipe 15 and the direct water pipe 13 even when the water flow switch 17 is “on”. Will not open.

If the water flow switch 17 is “on” due to the opening of the hot water valve 151 in the hot water exclusive mode as described above, the bypass valve 18 installed between the hot water discharge pipe 15 and the direct water pipe 13 is used. )), Cold water is mixed with hot water heated to a very high temperature, and hot water of the desired temperature cannot be obtained. Therefore, the bypass valve 18 is kept closed in the hot water exclusive mode as described above. The normal hot water operation is performed.

However, if the user setting mode is detected by the selection function operation determination command unit 92 and the heating / hot water combined mode is output, a predetermined control signal is output to the external input determination command unit 95 through the mode command unit 93. Therefore, the external input determination command unit 95 continuously detects whether the water flow switch 17 is "on" through the water flow detecting unit 91.

In this way, while the user detects the state of the water flow switch 17, when the user opens the water valve 151 for hot water use and the water flow switch 17 is "on", the time (that is, the water flow switch 17) The next execution command unit 96, the functional part control unit 97, and the control signal output group 98 only when the time when the " on " signal is generated elapses for several seconds (X sec, for example, 2-3 seconds). And a predetermined driving signal through the bypass valve driver 30 for a predetermined time (Y sec).

The reason for detecting whether the time is maintained for more than a few seconds (X sec) even when the water flow switch 17 is "on" is that, even when the water valve 151 for the hot water is in a closed state, the water pressure switch 17 may be briefly " This is to prevent it because it may be turned on and then turned off.

That is, although the water flow switch 17 is "on" for a while (for example, within 2 seconds) by "back water pressure" or air mixed in the water while the water valve 151 for hot water is closed, Whenever the bypass valve 18 is opened every time, the cold water is mixed with the hot water and the hot water is released, so that the user cannot receive hot water at a desired temperature later when the user wants to use the hot water.

On the other hand, the external input determination command unit 95 detects the "on" time of the water flow switch 17 through the water flow detection unit 91 and as a result is maintained for more than a few seconds (X sec) for the user to use hot water It recognizes that the water valve 151 is opened, and outputs a predetermined control signal to the next execution command unit for a predetermined time (Y sec).

Accordingly, the next execution command unit 96 transmits a predetermined driving signal to the bypass valve driving unit 30 through the functional part control unit 97 and the control signal output group 98 for a predetermined time (Y sec: 25, for example). -35 seconds), the bypass valve 18 opens and starts to maintain its state for a certain period of time (Y sec).

Therefore, since the cold water is mixed with the hot water that has been heated in the heat exchanger 27 during the heating use, the hot water discharged through the water valve 151 is discharged with a temperature suitable for human use, and thus hot water is directly discharged. It is possible to prevent the user from being burned.

At this time, the predetermined time (Y sec) for keeping the bypass valve 18 open is determined by the capacity of the hot water heating portion of the heat exchanger 27, and is heated in the hot water heating portion 272 while being heated. If the time it takes for all the hot water is squeezed out and the new cold water is heated after passing through the hot water heating unit 272 is enough, in the present invention was approximately 25-35 seconds.

As described above, while the water flow switch 17 is “on” and the bypass valve 18 is kept open for a predetermined time (Ysec), the external input determination command unit 95 is connected to the water flow detection unit 91. The water flow switch 17 continues to detect whether it is "off" again before the predetermined time (Y sec) has elapsed.

As a result, if the water flow switch 17 is "off" before the predetermined time (Y sec) has elapsed, the water flow switch 17 is again "while maintaining the open state of the bypass valve 18 until the predetermined time has elapsed. On ".

The reason for maintaining the remaining time even when the water flow switch 17 is "off" again due to the stop of use of the hot water in the state in which the bypass valve 18 is opened for a predetermined time is used to reuse the hot water in the remaining time later. This is to prevent the hot water remaining in the heat exchanger 27 from being directly discharged to the user when the user opens the water valve 151 and the water flow switch 17 is "on".

As a result of the above detection, if the water flow switch 17 is not "on" again, the bypass valve 18 is closed when a certain time (Y sec) has elapsed from the time when the water flow switch 17 is "on". If the water flow switch 17 is "off" and then "on" again from the time when the water flow switch 17 is "on" for the first time (Y sec), the previously counted time is cleared and By counting the time (Y sec) again and detecting whether the water flow switch 17 is "off" again, it is possible to completely prevent the hot water discharged to the user through the water valve 151 during the heating use.

As described above, according to the present invention, if the water valve for hot water is opened to use hot water while the oil boiler is in heating mode, the bypass valve installed between the hot water discharge pipe and the direct water pipe of the heat exchanger is provided only for a predetermined time. By automatically opening and closing, cold water is mixed with the hot water heated inside the heat exchanger during heating, so the user can receive hot water at the right temperature when using the initial hot water. Can be prevented in advance.

1 is an overall configuration diagram of an oil boiler to which the present invention is applied.

2 is a block diagram of a control unit in the present invention.

3 is a flowchart for explaining the method of the present invention.

Explanation of symbols used in the main part of the drawing

1: casing 2: burner

3: water tank 4: remote control or manual operation device

5: burner 6: heating piping

15: hot water discharge pipe 16: three-way toilet

17: water flow switch 18: bypass valve

27: heat exchanger 30: bypass valve drive unit

90: micom 91: water flow detection department

92: Selection function operation judgment command unit 93: Mode command unit

94: timer 95: external input judgment command unit

96: next execution command unit 97: functional parts control unit

271: heating water heating section 272: hot water heating section

Claims (8)

A control unit (9) having a microcomputer (90) and a remote control or a manual operation device (4) installed in the casing (1) connected to the outside to control the overall operation of the oil boiler; A combustor (2) composed of a combustion chamber (21) and a heat exchanger (27) to combust oil to heat heating water and hot water; A water tank 3 storing heating circulation water; The water flow switch 17 is installed between the hot water discharge pipe 15 and the direct water pipe 13 of the heat exchanger 27 having a structure of heating water and hot water stacked type to open the water valve 151 for heating. In the initial hot water hot water temperature control device of the oil boiler composed of a bypass valve 18 is opened by a predetermined drive signal from the control unit 9 when it is "on" and is opened for a predetermined time and automatically closed, In the microcomputer (90) in the control unit (9) and the flow of water flow detection unit 91 for detecting the flow of water through the output signal of the water flow switch (17); A selection function operation determination command unit 92 which receives an output signal of the remote controller or the manual operation apparatus 4 through the data transmission / reception unit 41 and determines a user selection function and generates a command accordingly; A mode command unit 93 which receives an output signal of the selection function operation determination command unit 92 and commands a command corresponding to the corresponding function mode; A timer 94 which receives the output signal of the oscillator 29 and counts the time required by each part of the system; The external input determination command unit 95 under the control of the timer 94 and receiving the output signals of the water flow detector 91 and the mode command unit 93 to determine the state of each unit to generate a predetermined control signal. Wow; A next execution command unit 96 which receives the output signal of the external input determination command unit 95 and determines a function to be transferred to the next: the next execution command unit 96 under the control of the timer 94; A functional part controller 97 which receives an output signal and selectively drives each functional part; Initially of the oil boiler, characterized in that the control signal output group 98 for selectively outputting the signals output from the functional component control unit 97 to the bypass valve 18 through the bypass valve drive unit 30 Hot water tap water temperature control device. The initial hot water hot water temperature control apparatus of an oil boiler according to claim 1, wherein the bypass valve (18) is a receiving valve. 2. The initial hot water hot water temperature control apparatus of an oil boiler according to claim 1, wherein the bypass valve is a geared valve. The initial hot water hot water temperature control apparatus of the oil boiler according to claim 1, wherein the bypass valve (18) is a synchronous motor valve. Detecting whether the power cord is “on” and the heating / hot water combined mode when the operation switch is “on” in the remote controller or the manual operation apparatus 4; Continuously detecting whether the water flow switch 17 is in the "on" state due to the use of hot water when the heating / hot water combined mode is detected as the result of the detection; When the water flow switch (17) is "on", the initial hot water hot water temperature control method of the oil boiler, characterized in that the bypass valve 18 is opened and closed for a predetermined time (Y sec). The method of claim 5, characterized in that the water flow switch 17 is opened and closed for a predetermined time (Y sec) only when the water flow switch 17 is kept "on" for a few seconds (X sec). Initial hot water hot water temperature control method of oil boiler. 6. The bypass valve (18) according to claim 5, characterized in that the bypass valve (18) is closed after a certain time has elapsed even if the water flow switch (17) is "off" after a certain time (Y sec) after the "on" of the water flow switch (17). Initial hot water hot water temperature control method of oil boiler. 6. The bypass valve (18) according to claim 5, wherein if the water flow switch (17) is initially "on" and then "off" again within a certain time (Y sec) and then "on" again before a certain time elapses, the bypass valve (18). The initial counting of the oil boiler, characterized in that the counting value has been cleared before the open time has been counted, the counting time is reset (Y sec) again, and the flow switch 17 is detected to be "off" again. Hot water hot water temperature control method.

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