KR101691130B1

KR101691130B1 - How to commissioning of the boiler has a waiting block-type water tank

Info

Publication number: KR101691130B1
Application number: KR1020150120191A
Authority: KR
Inventors: 주기동; 지윤성
Original assignee: 린나이코리아 주식회사
Priority date: 2015-08-26
Filing date: 2015-08-26
Publication date: 2017-01-02

Abstract

The present invention relates to a method of commissioning a boiler having an air-shutoff type water tank, and more particularly, to a method of commissioning a boiler having an air-shutdown type water tank, Starting counting for a predetermined fourth time that is the inspection time; Initiating a count for a predetermined first time which is a total air bleeding completion time; Switching the three sides to the heating side; Continuously determining whether the low-water level sensor in the water tank is "on "; Driving the circulation pump when the low-water level detection sensor is in the "on"state; Starting a count for a predetermined second time which is a commissioning time for the heating side air venting; If it is determined that the second time period has not expired, it is determined whether or not the fourth time period has ended. If the fourth time period has not ended, it is determined whether the first time period has ended. If the first time period has not ended And returning to the step of determining whether the second time period has ended if the low-water level sensor is in the "on"state; And switching the three sides to the hot water side when the second time has ended.
Therefore, it is possible to prevent abnormal overheating and abnormal noise due to defective air blowing during the start-up of the air-shutting type boiler in which the air extracting device is not completely installed in the boiler, It is possible to greatly improve the merchantability and the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a boiler having a shut-off type water tank,

The present invention relates to a method of commissioning a boiler having an air-shutoff type water tank, and more particularly, to an air-shutoff type boiler in which an air extracting device is not completely installed in a boiler, However, in this case, during the test run, the heating side test and the hot water side are not distinguished, and the heating side test operation (air bleed) is operated for a certain period of time. The present invention relates to a method of commissioning a boiler having an air-shutoff type water tank that allows air to flow to the heating side and also to draw air from the hot water side.

Generally, a boiler is used to heat water by using combustion heat and heat generated by burning it using fuel, coal or gas as fuel, or supplying electricity to a heater, and supplying hot water to various heating facilities In the case of a domestic boiler, hot water is supplied to the piping installed on the floor of the room or the like, and is used for supplying hot water through a water pipe or the like.

When the heating mode is operated in the normal heating / hot water boiler, the circulation pump is operated to transfer the heating water, and the heating water is heated by the main heat exchanger and transferred to the heating load (i.e., heating pipe) Heating is done.

In addition, the supply of the hot water blocks the path from the three sides to the heating load side and opens the path to the hot water (hot water) heat exchanger so that the hot water heated in the main heat exchanger is transferred to the hot water (Hot water) heat exchanger, heat can be exchanged between the direct water and the heating water, and hot water can be supplied to the user.

The boiler having such a construction is installed with the capacity of the boiler being determined according to the appropriate level of the place where the heating is required. That is, if there are several rooms requiring heating, the capacity of the boiler is determined so that the heating can be supplied based on the entire room.

On the other hand, in the conventional method of starting the boiler, after the completion of the heating trial operation, the hot water trial operation is completed or reversed, or only the heating side is started.

However, in the case of an air-shutoff type boiler in which the air extracting apparatus is not completely installed in the product, the air piping system is constituted by the heating piping system.

In this case, there is no problem in air ventilation in the heating pipe, but in the hot water / heating boiler, the hot water side circulates only the internal circuit of the boiler, and there is a problem in the air circuit of the internal circuit.

That is, in the case of an air-shutoff type boiler in which the air extracting apparatus is not completely provided in the conventional boiler, there is no way that the air on the hot water side is completely removed or air can be sucked out. If the boiler is operated without being removed, abnormal overheating may occur, and abnormal noise due to air may be generated.

Korean Registered Patent No. 10-0274364 (September 08, 2000) Korean Patent Publication No. 2000-0046669 (July 25, 2000) Korean Registered Patent No. 10-0601575 (July 07, 2006) Korean Registered Patent No. 10-1172162 (August 01, 2012)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air-shutoff type boiler in which an air extracting apparatus is not completely installed in a boiler, The air from the hot water circuit is allowed to flow to the heating side and the air from the hot water side can also be taken out by repeating the test operation of the hot water side for a certain period of time And an object of the present invention is to provide a trial operation method of a boiler having an airtight water tank which can prevent overheating and abnormal noise from occurring.

In order to accomplish the above object, the present invention provides a boiler control apparatus including a boiler having an air shut-off type water tank, Starting counting for a predetermined fourth time that is the inspection time; Switching the three sides to the heating side through the three-way drive device; Continuously determining whether the low-water level sensor in the water tank is "on "; Initiating a count for a predetermined first time which is a total air bleeding completion time; Driving the circulation pump through the circulation pump drive device when the low-water level detection sensor is in the "on" state; Starting counting for a predetermined second time which is a trial time for the heating side air venting; If it is determined that the second time period has not expired, it is determined whether or not the fourth time period has ended. If the fourth time period has not ended, it is determined whether the first time period has ended. If the first time period has not ended And returning to the step of determining whether the second time period has ended if the low-water level sensor is in the "on" state; And switching the three sides to the hot water side when the second time has ended.

In addition, the control device that switches the three sides to the hot water side after the second time period after the start of the test run for venting air, starts counting for a predetermined third time, which is the test run time for the hot water side air depression via the timer ; If it is determined that the third time period has not expired, it is determined whether the fourth time period has ended. If the fourth time period has not been completed, it is determined whether the first time period has ended. If the time has not ended, it is determined whether the low-level detection sensor is in the "on" state. If the low-level detection sensor is kept in the "on" state, the process returns to the step of determining whether the third time has ended. And when the third time is over, switching the three sides to the heating side and returning to the step of starting counting for the second predetermined time.

In the meantime, when the three sides are switched to the heating side or the hot water side to perform the trial operation for air discharge, when the on / off state of the low-water level sensor installed in the water tank is judged, ; And then returning to the step of switching the three sides to the heating side after initializing the first time to the third time, respectively.

When the third time is switched to the heating side or the hot water side to perform the trial operation for air removal, if the fourth time, which is the error inspection time, is found as a result of judging the count for the fourth time, Indicating a test run error; And stopping the operation of all the components of the boiler to stop the operation of the boiler.

In the above, when the three sides are switched to the heating side or the hot side to perform the trial operation for air exhaustion, the count for the first time which is the completion time of the trial operation is judged. As a result, Performing gas purging; And stopping the driving of the circulation pump.

At this time, the first time (T1), which is the completion time of the air venting trial operation, is set to 50 to 70 minutes, and the second time (T2), which is the trial time for the air ventilation on the heating side, And the time T3 is set to 330 to 390 seconds and 20 to 40 seconds, respectively, and the fourth time T4, which is the trial operation error checking time, is set to 100 to 140 minutes.

As described above, according to the method for commissioning the boiler having the air-shutoff type water tank of the present invention, it is possible to distinguish the heating side and the hot water side during the trial operation of the air- After running the heating side test (air exhaust) for a certain period of time, the hot water side test run (air exhaust) is repeated for a certain period of time to let the air in the hot water circuit flow to the heating side so that the air on the hot water side can also be taken out. It is possible to prevent the occurrence of abnormal overheating and abnormal noise caused by the air vent, and to greatly improve the reliability of the air venting trial operation and the merchantability of the product itself.

1 is a schematic block diagram of a boiler to which the method of the present invention is applied;
2 is a flow chart for explaining the method of the present invention.

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

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Fig. 1 shows a schematic block diagram of a boiler to which the method of the present invention is applied, and Fig. 2 shows a flowchart for explaining the method of the present invention.

According to the present invention,

After the boiler provided with the air-shutoff type water tank is installed and commissioning for air removal is started, the controller 1 in the boiler provided with the calculating device 1a and the timer 1b performs a test operation through the timer 1b (S1) of starting counting for a predetermined fourth time (T4) which is an error inspection time;

(S2) of switching the three sides (3a) to the heating side through the three-way drive device (3);

A step (S3) of continuously determining whether the water tank low water level detection sensor 2 is "on ";

(S4) of starting counting for a predetermined first time (T1), which is the complete air subtracting completion time;

(S5) driving the circulation pump (4a) through the circulation pump drive device (4) when the low-water level detection sensor (2) is in the "on" state;

A step (S6) of starting counting for a predetermined second time (T2), which is a trial operation time for the air discharge on the heating side;

If it is determined that the second time T2 has not been terminated (S7), it is determined whether or not the fourth time T4 has ended (S8) and the fourth time T4 is not terminated It is determined whether the first time T1 has ended or not (S9). If the first time T1 has not been completed, it is determined whether the low-water level detection sensor 2 is in the "on" state (S10) Returning to step S7 if it is determined that the second time T2 has ended;

(S11) of switching the three sides (3a) to the hot water side when the second time (T2) is finished.

The controller 1 switches the three sides 3a to the hot water side after the second time T2 has been completed after the commencement of the trial operation for venting air, A step (S12) of starting counting for a predetermined third time (T3) which is a trial driving time;

If it is determined that the third time T3 has not ended and the third time T3 has not been completed, it is determined whether or not the fourth time T4, which is the time trial error checking time, has ended (S14) If it is determined that the first time period T1 has not ended (S15) and the first time period T1 has not ended, then it is determined whether the low-level detection sensor 2 is in the "on" state (S16) Returning to step S13 judging whether the third time T3 has ended if the low-level detection sensor 2 is kept in the "on" state;

When the third time T3 has ended, switching the three sides 3a to the heating side (S17) and returning to the step S6 for starting counting for the determined second time T2 is further carried out .

On the other hand, when the three-way side 3a is switched to the heating side or the hot water side to perform trial operation for air removal, the on / off state of the low-water level detection sensor 2 installed in the water tank is determined S16). If the result is "off &

Stopping the circulation pump 4a (S18);

(S19) the first time to the third time (T1, T2, T3) respectively and then returning to the step S2 of switching the three sides (3a) to the heating side .

As a result of judging the count for the fourth time T4 (S8) (S14) while switching the three sides 3a to the heating side or the hot water side and performing the trial operation for extracting air, When the fourth time T4 has ended,

(S20) of causing the control unit (1) to display a test operation error on the display unit (5);

(S21) of stopping the operation of all the components of the boiler by stopping the operation of the boiler.

In addition, in the above, when the triple side 3a is switched to the heating side or the hot side to perform the trial operation for air exhaustion, the count for the first time T1 as the trial operation completion time is determined (S9) (S15) If one hour T1 has ended,

(S22) of performing gas purging at three sides (3a) of the end point;

Stopping the driving of the circulation pump 4a (S23);

Reference numeral 6 denotes a hot water temperature detecting device, 7 denotes a flame detecting device, 8 denotes a blowing fan driving device for controlling the driving of the blowing fan 8a, 9 denotes an igniter drive device for controlling the driving of the igniter 9a And reference numeral 10 denotes a control device provided with various keys.

Hereinafter, the operation and effect of the method of commissioning the boiler having the air-shutoff type water tank according to the present invention will be described.

First, the control device 1 in the boiler to which the present invention is applied is provided with a calculating device 1a and a timer 1b, and a boiler equipped with a shut-off type water tank is installed and power is supplied, The control device 1 starts counting for a predetermined fourth time T4, which is the time of trial operation error checking, through the timer 1b provided in the control device 1 (S1).

In this case, the fourth time T4, which is the time-trial error checking time, may be set considering the capacity of the boiler and the length of the piping. In the present invention, the fourth time T4 is set to 100 to 140 minutes.

Thereafter, in the control device 1, the three sides 3a are switched to the heating side (S2) through the three-way drive device 3 and the low water level detection sensor 2 installed in the water tank is in the " (That is, whether there is almost no water in the water tank) (S3).

Subsequently, the control device 1 starts counting for a predetermined first time (T1), which is the completion time of the entire air withdrawal. At this time, the first time (T1) And 50 to 70 minutes in consideration of the length of the pipe and the like.

In other words, although the completion time of the air discharge on the heating side and the completion time of the air discharge on the hot water side have been separately performed, in the present invention, since the air discharge completion time of the heating side and the hot water side are not distinguished, And has a first time (T1) of 50 to 70 minutes as the air subtracting completion time.

On the other hand, when the control device 1 determines the state of the low-water level sensor 2, the circulation pump 4a is driven (S5) through the circulation pump drive device 4 in the " The water continues to be fed and circulated.

Subsequently, the control device 1 starts counting for a predetermined second time T2, which is a trial operation time for air exhaust on the heating side, through the timer 1b in its own (S6). At this time, The second time (T2), which is the commissioning time, is set to 330 to 390 seconds taking into consideration the length of the pipe and the like.

Thereafter, the controller 1 determines whether the second time T2 has been terminated (S7). If the second time T2 has not been terminated, it is determined whether the fourth time T4 has ended (S8) If the fourth time T4 has not been completed, it is determined whether or not the first time T1 has ended (S9). If the first time T1 has not been completed, the low-water level detection sensor 2 is determined to be in the ON state The process returns to step S7 to determine whether the second time T2 has ended if the low level detection sensor 2 is kept in the ON state.

When the trial time for the air discharge from the heating side set at 330 to 390 seconds is repeated, that is, when the second time (T2) ends, the control device 1 recognizes that the air discharge to the heating side is completed The three sides 3a are switched to the hot water side through the three-way drive device 3 for venting the air to the hot water side (S11).

Subsequently, the control device 1 starts counting for a predetermined third time T3, which is a trial operation time for the hot water side air discharge through the timer 1b (S12). At this time, The third time T3 is set to 20 to 40 seconds, unlike the second time T2, which has a long time of 330 to 390 seconds, in consideration of the fact that the hot water pipe is relatively short compared to the heating pipe.

If the third time T3 is not terminated, the control device 1 determines whether the third time T3 has been terminated (S13). If the third time T3 has not ended, the fourth time T4, which is the time- (S14). If the fourth time T4 has not been completed, it is determined whether the first time T1 has ended (S15). If the first time T1 is not completed, the low-level detection sensor 2 (S16). If the low-level detection sensor 2 is maintained in the "on" state, the process of returning to the step S13 for determining whether the third time T3 is terminated is repeated.

When the trial time for the air-side air depression set to 20 to 40 seconds during repeating the steps is completed, that is, when the third time T3 ends, the three sides 3a are switched again to the heating side (S17) The process returns to step S6 where the count for the time T2 is started, and the subsequent steps are repeated.

On the other hand, the first to fourth time periods (T1 to T4) during the trial operation for switching the three sides (3a) to the heating side or the hot water side in the controller (1) (S10) (S16) as a result of judging the on / off state of the low-water level detecting sensor 2 provided in the water tank in the state that the water tank (S18) of the circulation pump (4a) to interrupt the supply of water.

Subsequently, the control device 1 returns to the step S2 of switching the three sides 3a to the heating side after initializing the previously counted first to third times T1, T2 and T3 (S19) I will go.

That is, if it is detected that there is no water in the low-water level detection sensor 2 before the first time T1, which is the completion time of the air removal, ends, the second and third times T2, The third side 3a is switched to the heating side as a matter of course when the water is detected by the low water level detection sensor 2 after water replenishment (manual or automatic), the count of the first time T1 It starts again.

In this case, when the absence of water in the low-level detection sensor 2 is detected, it is necessary to switch the three sides 3a to the heating side so that a large amount of water can be replenished in the heating pipe in a short time, The detection can be minimized.

The controller 1 switches the three sides 3a to the heating side or the hot water side to count the fourth time T4 during the air venting trial operation on the heating side or the hot water side As a result of the judgment (S8) (S14), if the fourth time (T4) set to 100 to 140 minutes is relatively longer than the first to third times (T1 to T3), the control device (1) And displays the contents thereof on the display unit 5. [0054]

Therefore, the installer of the boiler can confirm the content displayed on the display unit 5, accurately recognize that the test run error has occurred in the currently installed boiler, and take necessary measures quickly and accurately.

In addition, in the control device 1, the venting trial operation on the heating side or the hot water side is not completed until the fourth time T4, which is the error checking time of 100 to 140 minutes, 5), it is possible to secure the stability of the boiler by shutting off the driving of all the components of the boiler to stop the operation (S21).

On the other hand, in the control device 1, when the three sides 3a are switched to the heating side or the hot side to perform a trial operation for extracting air, a count for the first time T1 as a trial operation completion time is determined (S9) (S22). When the first time (T1) set to 50 to 70 minutes has ended, gas purging is performed at the position of the three sides (3a or 3b) The operation of the pump 4a is interrupted (S23), thereby terminating the trial operation for the boiler having the shut-off type water tank.

In other words, if the low-water level sensor 2 repeatedly detects the absence of water in the atmosphere-interception-type water tank, there may be an abnormality such as water leakage in the product or the heating pipe. Therefore, When the first time (T1) of 50 to 70 minutes, which is the completion time of the air removal, ends before the end of the time t4 (T4), gas purging is performed at the position of the three sides 3a of the end point (S22) If the first time (T1), which is the completion time of the air subtraction, is not completed before the fourth time (T4) is terminated, a test operation error is displayed (S20) and the boiler is safely stopped (S21).

Therefore, it is possible to prevent abnormal overheating and abnormal noise due to defective air blowing during the start-up of the air-shutting type boiler in which the air extracting device is not completely installed in the boiler, It is possible to greatly improve the merchantability and the like.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Which will be apparent to those skilled in the art.

1: Control device
1a: computing device 1b: timer
2: Low water level sensor
3: Three-way drive device 3a: Three-way
4: circulation pump drive device 4a: circulation pump
5:
6: Hot water temperature detection device
7: Flame detector
8: blower fan drive device 8a: blower fan
9: igniter drive device 9a: igniter
10: Adjustment device

Claims

When a start-up operation for venting air is started after a boiler equipped with a shut-off type water tank is started, a control in the boiler starts counting for a predetermined fourth time, which is a time-trial error checking time, through a timer;
Switching the three sides to the heating side;
Continuously determining whether the low-water level sensor in the water tank is "on ";
Initiating a count for a predetermined first time which is a total air bleeding completion time;
Driving the circulation pump when the low-water level detection sensor is in the "on"state;
Starting counting for a predetermined second time which is a trial time for the heating side air venting;
If it is determined that the second time period has not expired, it is determined whether or not the fourth time period has ended. If the fourth time period has not ended, it is determined whether the first time period has ended. If the first time period has not ended And returning to the step of determining whether the second time period has ended if the low-water level sensor is in the "on"state;
And switching the three sides to the hot water side when the second time has expired.

The method according to claim 1,
The control device for switching the three sides to the hot water side after the second time period after the start of the test operation for venting air, starts counting for a predetermined third time, which is the test run time for the hot water side air depression via the timer;
If it is determined that the third time period has not expired, it is determined whether the fourth time period has ended. If the fourth time period has not been completed, it is determined whether the first time period has ended. If the time has not ended, it is determined whether the low-level detection sensor is in the "on" state. If the low-level detection sensor is kept in the "on" state, the process returns to the step of determining whether the third time has ended.
And returning the three sides to the heating side when the third time period has ended and returning to the step of starting the counting for the second predetermined time period.

The method according to claim 1,
Off state of the low-water level sensor installed in the water tank while performing the trial operation for venting the air by switching the three sides to the heating side,
Stopping the circulation pump;
And then returning to the step of initializing the first time and the second time and then starting the counting for the first predetermined time.

The method of claim 2,
Off state of the low-water level detecting sensor installed in the water tank while performing the trial operation for venting the air by switching the three sides to the hot water side,
Stopping the circulation pump;
And then returning the initial three sides to the heating side after initializing the first time and the third time, and then returning to the step of switching the initial three sides to the heating side.

The method according to any one of claims 1 to 3,
When the third time is switched to the heating side or the hot water side to perform the trial operation for air exhaustion, if the count of the fourth time is judged,
A step of causing the control device to display a test operation error on the display unit;
And stopping the operation of all the components of the boiler to stop the operation of the boiler.

The method according to any one of claims 1 to 3,
When the three-way side is switched to the heating side or the hot-side side to perform the trial operation for air removal, the count for the first time, which is the time for completion of the trial operation,
Performing gas purge at the three-way position of the end point;
Shutting off the operation of the circulation pump, and terminating the operation of the circulation pump.

The method according to claim 1,
The first time (T1), which is the completion time of the air venting trial operation, is set to 50 to 70 minutes. The second time (T2), which is the trial driving time for the air ventilation on the heating side, is set to 330 to 390 seconds. And the fourth time (T4) is set to 100 to 140 minutes.

The method of claim 2,
The first time (T1), which is the completion time of the air venting trial operation, is set to 50 to 70 minutes. The third time (T3), which is the trial driving time for the hot water side air venting, is set to 20 to 40 seconds. And the fourth time (T4) is set to 100 to 140 minutes.