KR20110120149A - Solid fuel combustion type boiler and heating system using the boiler and method for controling the system - Google Patents

Abstract

PURPOSE: A solid fuel combustion type boiler and heating system using the boiler and control method of the heating system is provided that the firing time is minimized by using the hot wire. The thermal efficiency is maximized and the heating expense is reduced. CONSTITUTION: A solid fuel combustion type boiler(100) comprises a storage tank(110), a combustion furnace(120), a burner part, an exhausting part, a heating tank(130), a first heat exchanger(140), and a flue(136). The combustion furnace is burnt the solid fuel of the storage tank. The burner part comprises a firing path(122), an electric heater(124), and a blower(126). The firing path of combustion is installed in the combustion in inside, the solid fuel exhausted from the exhausting part puts on the firing path. It converts the electrical energy into the heat energy and the electric heating appliance ignites the solid fuel of the firing path. The blower supplies the air to the combustion chamber. The exhausting part interlinks the storage tank and furnace, the solid fuel is transferred to the burner part. The thermal medium is heated in the heating tank with the circulation. The first heat exchanger heat-exchanges the exhaust gas and the heat medium of inside.

Description

SOLID FUEL COMBUSTION TYPE BOILER AND HEATING SYSTEM USING THE BOILER AND METHOD FOR CONTROLING THE SYSTEM}

The present invention relates to a boiler. More specifically, the present invention relates to a boiler for solid fuel, which burns solid fuel and uses it as a heat source, and an agricultural heating facility and a control method for the heating facility including the boiler.

In general, a boiler burns fuel therein and heats water or a specific refrigerant using the combustion heat. The heated water or refrigerant is circulated into the room to perform heating.

Such boilers mainly use oil such as kerosene or gas such as LPG or LNG as combustion fuel. However, in the case of boilers that use oil or gas as fuel, the cost of purchasing the fuel is excessive, and the maintenance cost is high, so the burden of using the boiler is increasing in rural areas where the income level is low. . Recently, many boilers using solid fuels such as coal or pellets as fuels in rural areas have been widely used.

Currently, boilers using solid fuels ignite solid fuels by hot air ignition.

However, the hot air ignition method does not ignite properly when the moisture infiltrates into the fuel and gets wet. Solid fuel in fuel has a property of absorbing the surrounding moisture very well. In the case of the boiler using a solid fuel there is a problem that the ignition success rate is significantly lowered because the ignition is not properly made due to the moisture of the fuel.

Therefore, some of the warm air heaters among the agricultural heaters using solid fuel continuously maintained the embers by continuously injecting the solid fuel into the burner for quick ignition responsiveness even when the warm air was not discharged. However, this structure increases the amount of fuel used and lowers the safety of the boiler.

Accordingly, the present invention provides a solid fuel boiler and an agricultural heating system and a heating control method including the boiler, in which the ignition success rate of the solid fuel is increased and the ignition can be made more quickly.

In addition, the present invention provides a solid fuel boiler and an agricultural heating system and a heating control method including the boiler, which are capable of maximizing heat exchange efficiency.

In addition, the present invention provides a solid fuel boiler, which is optimized for heating of an agricultural facility, and which can be operated effectively, and an agricultural heating facility and a heating control method including the boiler.

To this end, the boiler is a storage tank in which solid fuel is stored, a combustion furnace in which solid fuel is combusted, and a burner unit installed at one side of a combustion furnace to burn solid fuel, and connecting a storage tank and a combustion furnace to burn solid fuel. A discharge unit for transferring to the unit, the heating tank is installed surrounding the combustion furnace and the heating medium is circulated heating the inside, the primary heat exchanger is installed at the top of the combustion furnace in the heating tank and the exhaust gas flows inside the heat exchanger In addition, it may be connected to the top of the primary heat exchanger and installed on top of the heating tank may include a flue for exhausting the exhaust gas.

The burner unit may include a combustion table installed in the combustion furnace in which the solid fuel discharged from the discharge section is placed, an igniter for igniting the solid fuel of the combustion zone, and a blower for supplying air into the combustion chamber. The may include an electric heater for converting electrical energy into thermal energy to heat the solid fuel discharged from the discharge.

The heating medium may consist of water.

At least two heaters may be provided.

The heater may have a structure protruding from the tip of the discharge portion into the combustion zone.

The heater may be installed close to the bottom of the furnace.

The boiler may further include a secondary heat exchanger installed on top of the primary heat exchanger for heat exchange between the exhaust gas and the heat medium discharged in the year.

The secondary heat exchanger is connected to the heating tube which is spaced apart from the inner surface of the upper chamber in the upper chamber in which each tube of the primary heat exchanger communicates, and is connected to the heating tube side through the upper chamber side to communicate the heating tank with the heating tube. The inlet pipe may be connected to the top of the heating tube through the top of the upper chamber to communicate with the heating tank and the heating tube may include a discharge pipe for discharging water.

The agricultural heating system is a boiler for producing hot water by burning solid fuel, a heat storage tank connected to the boiler to store hot water, a circulation pipe connected between the boiler and the heat storage tank to circulate the hot water, and a first circulation installed at one side of the circulation pipe. A heat exchanger tube connected to a pump and a heat storage tank and a second circulation pump installed at one side of the heat exchanger tube to circulate the hot water into the agricultural facility, and a hot air generator connected to the heat exchanger tube to produce hot air from the hot water and discharge it into the agricultural facility. Can be.

The hot air generating unit is an indoor heat exchanger that generates heat by heat exchange with a heat exchanger tube, and is connected to the indoor heat exchanger, branched from the main duct and the main duct that distributes the warm air, and the spray holes are formed at intervals along the longitudinal direction to blow out the warm air. It may include a plurality of branch pipes.

The hot air generating unit is connected in parallel to the heat exchanger tube and connected to a plurality of hot water supply lines arranged at intervals in the agricultural facility, and a plurality of indoor heat exchangers and heat exchanger tubes installed at intervals in the hot water supply line to produce hot air from the hot water. And installed along the hot water supply line may include a hot water recovery line for recovering the hot water passed through the indoor heat exchanger to the heat storage tank.

The agricultural heating equipment includes a first temperature sensor for detecting a hot water temperature in a boiler, a second temperature sensor for detecting a hot water temperature in a heat storage tank, a third temperature sensor for detecting a temperature in an agricultural facility, and a temperature detected from each temperature sensor. The control unit may further include a control unit for operating the control unit.

On the other hand, the present control method for controlling agricultural heating facilities detects the hot water temperature inside the boiler and compares it with the set value, and if the hot water temperature inside the boiler is higher than the set value driving the pump to circulate the hot water to the heat storage tank Detecting and comparing the hot water temperature in the heat storage tank with the set value, repeating the above process if the hot water temperature in the heat storage tank is below the set value, stopping the operation of the boiler when the water temperature is higher than the set value, and using the hot water in the heat storage tank to the agricultural facility. It may include the step of supplying warm air.

The hot air supply step detects the temperature inside the agricultural facility and compares it with the set value, and if the temperature inside the agricultural facility is less than the set value, driving the pump to circulate the hot water in the heat storage tank into the agricultural facility, indoor heat exchange in the agricultural facility It may include the step of driving the machine to produce hot air from the hot water to blow into the agricultural facility.

According to the present apparatus as described above, the ignition success rate of the solid fuel can be increased and the ignition time can be minimized by the ignition method by the hot wire, which is more convenient, easier and safer to use.

In addition, it is possible to reduce the heating cost for agricultural facilities by maximizing the thermal efficiency.

In addition, by optimizing the control of the heating facility in the agricultural facility, the crops in the agricultural facility can be grown in an optimal environment, thereby producing high quality agricultural products and increasing the yield.

1 is a schematic side cross-sectional view showing a boiler for solid fuel according to an embodiment of the present invention.
2 is a schematic cross-sectional view showing a boiler for solid fuel according to an embodiment of the present invention.
Figure 3 is a schematic perspective view showing the ignition structure in the boiler for solid fuel according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing the agricultural heating equipment having a solid fuel boiler according to an embodiment of the present invention.
Figure 5 is a schematic diagram showing another embodiment of the agricultural heating equipment having a solid fuel boiler according to the present invention.
6 is a schematic flowchart illustrating a control process of an agricultural heating facility having a solid fuel boiler according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures have been exaggerated or reduced in size for clarity and convenience in the figures and any dimensions are merely exemplary and not limiting. And the same structure, element or part that appears in more than one figure the same reference numerals are used in different embodiments to indicate corresponding or similar features.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a,” “an,” and “the” include plural forms as well, unless the phrases clearly indicate the opposite. As used herein, the term "comprising" embodies a particular characteristic, region, integer, step, operation, element, and / or component, and other specific characteristics, region, integer, step, operation, element, component, and / or group. It does not exclude the presence or addition of.

Solid fuel is hereinafter defined as including all types of fuel in solid form, such as wood, pellets, and coal, not gases or liquids.

1 and 2 are cross-sectional views showing a boiler for solid fuel according to the present embodiment.

As shown, the boiler 100 is configured to burn solid fuel and heat water with the combustion heat to produce hot water.

To this end, the boiler 100 includes a storage tank 110 in which solid fuel is stored, and a burner unit for burning solid fuel, surrounding the combustion furnace 120 and the combustion furnace 120 in which the combustion of the solid fuel occurs. It includes a heating tank 130, the heat exchanger is installed in the heating tank 130, the water is circulated and heated.

In this embodiment, the storage tank 110 is arranged in close contact with the side surface of the heating tank 130, and is capable of preheating the internal solid fuel using the heat of the heating tank 130. The size or structure of the storage tank 110 may be variously set according to the capacity of the boiler 100, and is not particularly limited.

The lower end of the storage tank 110 is installed with a discharge portion for taking out the stored solid fuel to the burner unit is connected to the combustion furnace 120.

As shown in FIG. 1, the discharge part is installed at a lower end of the storage tank 110 and is connected to the withdrawal pipe 112 with which the solid fuel is withdrawn, and a withdrawal pipe 112 connected to the withdrawal pipe 112 and extending to the combustion furnace 120 ( 114), a transfer screw 116 installed in the transfer pipe to move the solid fuel, and a drive motor 118 for rotating the transfer screw.

Accordingly, when the driving motor 118 is operated, the transfer screw 116 is rotated to move the solid fuel drawn out through the drawing pipe 112 into the combustion furnace 120. The solid fuel transferred into the combustion furnace 120 is ignited and burned by the burner part.

The burner part is installed in the combustion furnace 120, the combustion table 122 in which the solid fuel discharged from the conveying pipe 114 of the discharge part is placed, the igniter for igniting the solid fuel of the combustion table 122, and the inside of the combustion chamber. And a blower 126 for supplying air to the furnace.

In the present embodiment, the igniter includes a heater 124 for converting electrical energy into thermal energy and applying heat to the solid fuel.

3 illustrates the structure of the heater 124 according to the present embodiment. As shown, the heater 124 is a heat pipe structure having a heating wire therein. Since the structure of the electric heater 124 using electric energy has already been disclosed, many detailed descriptions thereof will be omitted. Wires for supplying power to the inner heating wire of the heater 124 may extend outward along the inside of the transfer pipe (114). The solid fuel discharged to the front end of the transfer pipe 114 by the transfer screw 116 is accumulated on the combustion table 122 and touches the heater 124, in this state, when the heater 124 is heated, the solid fuel by the heat Is ignited.

In the present embodiment, the heater 124 is installed near the combustion table 122 at the lower inner front end of the transfer pipe 114 has a structure projecting into the combustion furnace 120. The installation position of the heater 124 is not particularly limited thereto, and for example, may be installed at the bottom of the combustion table 122.

In addition, in the present embodiment, two heaters 124 are provided at intervals. The boiler 100 may alternately drive two heaters 124. Alternatively, the boiler 100 may use one of the two heaters 124 as a preheater. Thus, the preheater can be used if other heaters are not available due to a failure so that the solid fuel ignition can continue.

The heat of combustion of the solid fuel complexed by the heater 124 is heat-exchanged with the water inside the heating tank 130.

The heating tank 130 is installed to surround the combustion furnace 120 and extends above the combustion furnace 120. An inlet 132 through which water is introduced is formed at a lower end of the heating tank 130, and an outlet 134 through which heated hot water is discharged is formed. Accordingly, the water introduced through the inlet 132 of the heating tank 130 is heated by the heat generated in the combustion furnace 120 and then discharged through the upper outlet 134 and then sent to the required place. In addition, the flue 136 for discharging the exhaust gas generated in the combustion furnace 120 is installed in the center of the upper end of the heating tank 130. The size or shape of the heating tank 130 can be variously changed according to the capacity of the boiler 100 and is not particularly limited.

The heat tank 130 further includes a heat exchanger for exchanging heat of exhaust gas discharged through the flue 136 from the combustion furnace 120 with water.

In the present embodiment, the heat exchanger is installed at the upper end of the combustion furnace 120 in the heating tank 130, and exhaust gas is distributed therein to exchange heat with the heat medium, and the primary heat exchanger 140. It is installed at the top and includes a secondary heat exchanger 150 for heat exchange between the exhaust gas and the heat medium discharged to the flue 136.

The primary heat exchanger 140 is connected to the top of the combustion furnace 120 and extends vertically and a plurality of tubes 142 through which exhaust gas is discharged, and are installed on the top of the tube 142 so that each tube 142 is in communication. And an upper chamber 144 connected with the flue 136. Accordingly, the exhaust gas inside the combustion furnace 120 flows through the tube 142 and flows into the upper chamber 144 and is discharged to the outside through the flue 136 connected to the upper chamber 144. In this process, the heat of the exhaust gas is transferred to the tube 142, and the water inside the heating tank 130 is heat-exchanged while passing between the tubes 142 of the primary heat exchanger 140 and heated with hot water.

In addition, the secondary heat exchanger 150 exchanges heat of the exhaust gas passing through the primary heat exchanger 140 with water again. Thus, the boiler 100 may maximize the thermal efficiency by absorbing the heat of combustion again through the secondary heat exchanger 150 as much as possible.

To this end, the secondary heat exchanger 150 has a heating tube 152 spaced apart from an inner surface of the upper chamber 144 in the upper chamber 144 and a side surface of the heating tube 152 through the upper chamber 144 side. Is connected to the heating tank 130 and the heating tube 152 in communication with the water flows through the inlet pipe 154, the upper chamber 144 through the top of the heating tube 152 connected to the top of the heating tank 130 And a discharge pipe 156 communicating with the heating vessel 152 to discharge water.

The heating tube 152 is formed in a shape corresponding to approximately the upper chamber 144, the size is smaller than the upper chamber 144 is located at a predetermined distance from the inner surface of the upper chamber 144. Accordingly, the exhaust gas introduced into the upper chamber 144 passes through the outside of the heating tube 152 and is heat-exchanged with water in the heating tube 152 and then exits to the upper flue 136. In the present embodiment, the heating tube 152 is supported in the upper chamber 144 by the inlet pipe 154 and the discharge pipe 156. The inlet pipe 154 is a pipe into which the water inside the heating tank 130 flows into the heating tube 152, and a plurality of the inlet tubes 154 are provided at intervals along the outer circumferential surface of the heating tube 152. Discharge pipe 156 is a pipe for discharging the water heated in the heating tube 152 to the heating tank 130, a plurality of vertically spaced at the top of the heating tube 152 is installed. The inlet pipe 154 and the outlet pipe communicate the heating tank 130 and the heating tube 152 across the upper chamber 144.

As such, the first heat exchanger 140 performs heat exchange between the exhaust gas flowing into the outside and the water flowing to the outside, and the second heat exchanger 150 performs heat exchange between the water inside and the exhaust gas flowing to the outside.

On the other hand, the hot water heated by the boiler 100 is used for heating of agricultural facilities through a heating facility.

4 shows an embodiment of the present heating system.

As shown in Figure 4, the heating facility 200 is a boiler 100 for producing hot water by burning solid fuel, and the heat storage tank 210, the heat storage tank 210 is connected to the boiler 100 to store hot water. It includes a warm air generating unit for supplying warm air into the agricultural facility (A) by using hot water.

Since the boiler 100 has the same structure as described above, the same reference numerals are used for the same components, and detailed description thereof will be omitted below.

Between the boiler 100 and the heat storage tank 210 is installed a circulation pipe for circulating hot water. The circulation pipe is a supply pipe 212 connecting the outlet 134 of the upper end of the heating tank 130 of the boiler 100 and the inlet 132 of the heat storage tank 210 and the bottom of the heating tank 130 of the boiler 100. It is divided into the recovery pipe 214 connecting the inlet 132 and the outlet 134 of the bottom of the heat storage tank 210. In this embodiment, one side of the recovery pipe 214 is provided with a first circulation pump 216 for forcibly circulating water between the boiler 100 and the heat storage tank 210. Accordingly, as the first circulation pump 216 is driven, water is circulated along the supply pipe 212 and the recovery pipe 214, and is heated in the heating tank 130 of the boiler 100, and the heated hot water is stored in the heat storage tank 210. Stored within).

The hot air generator is to produce hot air through heat exchange from the hot water of the heat storage tank (210). A heat exchange tube for circulating hot water is installed between the hot air generator and the heat storage tank 210 to circulate the hot water in the heat storage tank 210 to the hot air generator.

The heat exchange tube is divided into a supply pipe 222 for supplying hot water to the hot air generating unit, and a recovery pipe 224 for sending the hot water passing through the hot air generating unit to the heat storage tank 210. In this embodiment, one side of the supply pipe 222 is provided with a second circulation pump 226 for forcibly supplying hot water of the heat storage tank 210 to the warm air generator. Accordingly, the hot water of the heat storage tank 210 is supplied to the warm air generating unit through the supply pipe 222 and then recovered to the heat storage tank 210 along the recovery pipe 224 according to the driving of the second circulation pump 226.

In the present embodiment, the hot air generating unit in the main heat duct 230, the main duct 232, the main duct 232 is connected to the indoor heat exchanger 230 and the indoor heat exchanger 230, the hot air is circulated by heat exchange with the heat exchange tube A plurality of branch pipes 234 branched to extend and the injection holes 236 are formed at intervals along the longitudinal direction to blow out the warm air.

The indoor heat exchanger 230 is a structure for producing warm air by heat-exchanging the hot water supplied through the supply pipe 222 of the heat exchanger tube and the air in the agricultural facility (A), both of the heat exchange structure surface for the fluid is particularly applicable It is not limited.

In this embodiment, the indoor heat exchanger 230 is a large-capacity heat exchanger is provided with at least one in the agricultural facility (A) to supply warm air to the entire agricultural facility (A) through the main duct 232 and the branch pipe (234). Done. 4 illustrates a structure in which one indoor heat exchanger 230 is provided in the agricultural facility A, but when the size of the agricultural facility is large, a plurality of indoor heat exchangers may be disposed.

As shown in FIG. 4, the main duct 232 is connected to the indoor heat exchanger 230 and extends along one surface of the agricultural facility A as a passage through which warm air flows.

The branch pipes 234 are continuously formed at predetermined intervals in the main duct 232 and are connected at right angles to the main duct 232 and are evenly disposed in front of the agricultural facility A. In the branch pipe 234, the injection holes 236 for blowing hot air along the longitudinal direction are formed at intervals. Accordingly, the warm air supplied from the indoor heat exchanger 230 to the main duct 232 is distributed to each branch pipe 234 and evenly sprayed to the front of the agricultural facility A through the injection hole 236 formed in the branch pipe 234. do. As such, the warm air is uniformly transmitted through the main duct 232 and the branch pipe 234 within the agricultural facility A, thereby minimizing the indoor temperature variation.

5 shows another embodiment of the present agricultural heating system.

As shown in Figure 5, the heating facility 200 is a boiler 100 for producing hot water by burning solid fuel, and the heat storage tank 210, the heat storage tank 210 is connected to the boiler 100 to store hot water. It includes a warm air generating unit for supplying warm air into the agricultural facility (A) by using hot water.

Except for the structure of the warm air generating unit, since the other components are the same as the structures already mentioned, the same reference numerals are used for the same components, and detailed description thereof will be omitted.

The heat exchange tube is divided into a supply pipe 222 for supplying hot water to the hot air generating unit, and a recovery pipe 224 for sending the hot water passing through the hot air generating unit to the heat storage tank 210. In this embodiment, one side of the supply pipe 222 is provided with a second circulation pump 226 for forcibly supplying hot water of the heat storage tank 210 to the warm air generator. Accordingly, the hot water of the heat storage tank 210 is supplied to the warm air generating unit through the supply pipe 222 and then recovered to the heat storage tank 210 along the recovery pipe 224 according to the driving of the second circulation pump 226.

In the present embodiment, the warm air generating unit is connected to the supply pipe 222 of the heat exchanger tube in parallel and installed at a plurality of hot water supply lines 240 and hot water supply lines 240 are arranged at intervals in the agricultural facility (A). And a plurality of indoor heat exchangers 242 for producing warm air from the hot water, connected in parallel to the recovery pipe of the heat exchanger tube, and installed along the hot water supply line 240 to pass the hot water passed through the indoor heat exchanger 242 to the heat storage tank 210. Hot water recovery line 244 for recovery.

As shown in FIG. 5, the hot water supply line 240 is evenly arranged in a plurality at intervals in front of the agricultural facility (A). Each hot water supply line 240 is connected in parallel to the supply pipe 222 of the heat exchanger tube so that hot water is evenly distributed to each hot water supply line 240.

The hot water recovery line 244 is provided in a number corresponding to each hot water supply line 240 is disposed along the hot water supply line 240. Each hot water recovery line 244 is connected in parallel to the recovery pipe 224 of the heat exchange tube to recover the hot water.

The indoor heat exchanger 242 is a structure for producing a warm air by heat-exchanging the hot water supplied through the hot water supply line 240 and the air in the agricultural facility (A), both of the heat exchange structure surface for the fluid is particularly limited It doesn't work.

In the present embodiment, the indoor heat exchanger 242 is a small capacity heat exchanger, and a plurality of the heat exchangers are evenly distributed along the hot water supply line 240 in the agricultural facility A to supply warm air to the entire agricultural facility A.

Accordingly, each hot water is supplied to each hot water supply line 240, and heat exchanged through the indoor heat exchanger 242 installed along each hot water supply line 240, and then recovered to the heat storage tank 210 through the hot water recovery line 244. do. Each indoor heat exchanger 242 is evenly distributed in the agricultural facility (A) so that the warm air is evenly blown out in front of the agricultural facility (A) through each indoor heat exchanger (242). This makes it possible to minimize room temperature variations.

On the other hand, reference numeral 250 which is not described in Figures 4 and 5 is a control unit for controlling the present agricultural heating facility 200. The controller 250 may include a first temperature sensor (see 252 of FIG. 1) for detecting a hot water temperature inside the boiler 100, a second temperature sensor 254 for detecting a hot water temperature in the heat storage tank 210, and an agricultural facility ( A) By operating the temperature value detected from the third temperature sensor 256 for detecting the internal temperature, each component of the facility 200 is controlled to operate.

Hereinafter, a control process of the facility 200 will be described with reference to FIG. 6. In the following description, the structure of the heating facility 200 shown in FIG. 4 will be described as an example. However, the heating system 200 of the embodiment shown in Figure 5 will also be the same control process.

When the boiler 100 is operated, the solid fuel in the storage tank 110 is transferred into the combustion furnace 120 by the transfer screw 116. Solid fuel discharged through the transfer pipe 114 is discharged and loaded onto the combustion zone 122 in the combustion furnace 120. The solid fuel discharged onto the combustion zone 122 is in contact with the heater 124 while being accumulated in the heater 124 protruding from the combustion zone 122.

When the main igniter is driven in this state, a current is applied to the heater 124 and heated, and the solid fuel is ignited by the high heat of the heater 124. This device is made by the ignition of the solid fuel by the heat pre-ignition method by the heater 124, the ignition is made faster even in a high humidity state of the solid fuel.

When the solid fuel is ignited and combusted, the combustion furnace 120 is heated. The heat of combustion of the solid fuel generated in the combustion furnace 120 is heat-exchanged with water through the heating tank 130. The hot exhaust gas generated in the combustion furnace 120 is introduced into the upper channel through the primary heat exchanger 140 at the top of the combustion furnace 120 and then discharged through the secondary heat exchanger 150 to the flue 136. do.

The water in the heating tank 130 is heat-exchanged with the combustion furnace 120 and then heat-exchanged again with the primary heat exchanger 140 and heated with hot water. The hot water heated through the primary heat exchanger 140 is introduced into the heating tube 152 of the secondary heat exchanger 150 and finally heat exchanged with the hot exhaust gas passing through the outside of the heating tube 152.

As such, the water in the heating tank 130 is heated by the hot water of the high temperature through the primary heat exchanger 140 and the secondary heat exchanger 150 in accordance with the boiler operation.

The hot water temperature inside the heating tank 130 is detected by the first temperature sensor 252 installed in the heating tank 130. The temperature value detected by the first temperature sensor 252 is applied to the control unit 250, and the control unit 250 calculates this value and detects the hot water temperature value and the control unit inside the heating tank 130 of the boiler 100. The hot water temperature value of the internal heating tank 130 of the boiler 100 preset to 250 is compared.

 The hot water temperature value in the boiler 100 preset by the controller 250 may be variously set as necessary, for example, 60 degrees or 80 degrees. When the detected hot water temperature is higher than or equal to a preset temperature, the controller 250 drives the first circulation pump 216 to send the warm water inside the heating tank 130 to the heat storage tank 210 to store the hot water. If the detected hot water temperature is lower than the preset temperature, the boiler 100 is continuously operated to increase the temperature of the hot water.

When hot water is stored in the heat storage tank 210 through the above process, the controller 250 calculates the hot water temperature in the heat storage tank 210. The hot water temperature in the heat storage tank 210 is detected by the second temperature sensor 254 installed in the heat storage tank 210. The controller 250 calculates this value and compares the detected hot water temperature value in the heat storage tank 210 with the hot water temperature value of the heat storage tank 210 preset in the control unit 250. The controller 250 stops driving of the boiler 100 when the detected hot water temperature is higher than or equal to the preset hot water temperature, and repeats the above process if it is less than one (S140 to S150).

Then, the control unit 250 calculates the temperature inside the agricultural facility (A). The temperature inside the agricultural facility A is detected by the third temperature sensor 256 installed in the agricultural facility A. The controller 250 calculates a temperature value detected by the third temperature sensor 256 and compares the temperature value with the internal temperature value of the agricultural facility A preset in the controller 250 (S160).

The controller 250 drives the second circulation pump 226 to circulate the hot water in the heat storage tank 210 to the indoor heat exchanger 230 through the heat exchange tube when the detected temperature inside the agricultural facility A is lower than the preset temperature. Will be supplied. In addition, the control unit 250 controls the indoor heat exchanger 230 to heat the hot air circulated through the heat exchanger tube and the indoor air to eject the warm air. (S170 to S180)

As such, the warm air blown out by the indoor heat exchanger 230 is driven into the main duct 232 installed in the indoor heat exchanger 230, and the agricultural facility A is provided through the branch pipe 234 installed in the main duct 232. Evenly supplied on the front. The warm air supplied to the branch pipe 234 is ejected through the injection hole 236 formed in the branch pipe 234 to evenly heat the inside of the agricultural facility (A).

On the other hand, if the temperature inside the agricultural facility (A) is higher than the preset temperature, the control unit 250 stops the operation of the second circulation pump and the indoor heat exchanger 230 for hot water supply (S190).

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

100: boiler 110: storage tank
120: combustion furnace 122: combustion zone
124: heater 130: heating tank
140: primary heat exchanger 144: upper chamber
150: secondary heat exchanger 152: heating tube
154: inlet pipe 156: discharge pipe
200: heating facility 210: heat storage tank
212, 222: supply pipe 214,224: recovery pipe
216: first circulation pump 226: second circulation pump
230, 242: indoor heat exchanger 232: main duct
234: branch pipe 236: injection hole
250: control unit

Claims (13)

A storage tank in which solid fuel is stored, and a combustion furnace in which solid fuel is combusted, a burner unit installed at one side of a combustion furnace, and a discharge tank for transporting solid fuel to a burner unit by connecting a storage tank and a combustion furnace. In addition, the heating tank is installed surrounding the combustion furnace and the heating medium is circulated heating inside, the heating tank is installed at the top of the combustion furnace inside the heating tank and the exhaust gas flows into the inner heat exchanger, the primary heat exchanger It is connected to the top and installed on the top of the heating tank to include a flue for exhausting exhaust gas,
The burner unit is installed in a combustion furnace, and a combustion zone in which solid fuel discharged from the discharge section is placed, a heater for converting electrical energy into thermal energy, and heating the ignition by applying heat to the solid fuel loaded in the combustion zone, air in the combustion chamber. Boiler for solid fuel comprising a blower for feeding. The method of claim 1,
The heater is a solid fuel boiler having at least two structures. The method of claim 2,
The heater is a solid fuel boiler of the structure installed protruding into the combustion zone from the discharge end. The method of claim 3, wherein
The heater is a solid fuel boiler is installed close to the bottom of the combustion table. The method according to any one of claims 1 to 4,
Installed on top of the primary heat exchanger solid fuel boiler further comprises a secondary heat exchanger for heat exchange between the exhaust gas and heat medium discharged to the flue. The method of claim 5, wherein
The secondary heat exchanger is connected to the heating tank side through the heating chamber which is spaced apart from the inner surface of the upper chamber and the upper chamber in the upper chamber in which each tube of the primary heat exchanger communicates with the heating tank and the heating tube in communication with the water The inlet pipe, through the top of the upper chamber is connected to the top of the heating tube is a solid fuel boiler comprising a discharge pipe for discharging water by communicating with the heating tank and the heating tube. A boiler that burns solid fuel to produce hot water, a heat storage tank connected to the boiler to store hot water, a circulation pipe connected between the boiler and the heat storage tank to circulate the hot water, and a first circulation pump installed on one side of the circulation pipe and the heat storage tank And a heat exchanger tube for circulating the hot water into the agricultural facility, a second circulation pump installed at one side of the heat exchanger tube, and a solid fuel boiler including a hot air generator for producing hot air from the hot water and discharging it into the agricultural facility. Agricultural heating equipment. The method of claim 7, wherein
The boiler is a storage tank in which solid fuel is stored, a combustion furnace in which solid fuel is combusted, a burner unit installed at one side of a combustion furnace to connect solid fuel, and a storage tank connected to a combustion furnace to transfer solid fuel to a burner unit. Discharge part for installing, the heating tank is installed surrounding the combustion furnace and the heating medium is circulated heating inside, the primary heat exchanger is installed at the top of the combustion furnace in the heating tank and the exhaust gas is flowed into the heat exchanger, 1 It is connected to the top of the heat exchanger and installed on the top of the heating tank and includes a flue for exhausting exhaust gas,
The burner unit is installed in a combustion furnace, and a combustion zone in which solid fuel discharged from the discharge section is placed, a heater for converting electrical energy into thermal energy, and heating the ignition by applying heat to the solid fuel loaded in the combustion zone, air in the combustion chamber. Agricultural heating equipment equipped with a solid fuel boiler including a blower for feeding. The method of claim 8,
The hot air generating unit is an indoor heat exchanger that generates heat by heat exchange with a heat exchanger tube, and is connected to an indoor heat exchanger, branched from a main duct and a main duct in which the warm air flows, and spray holes are formed at intervals along the longitudinal direction to provide warm air. Agricultural heating equipment comprising a boiler for solid fuel comprising a plurality of branch pipes to eject. The method of claim 8,
The hot air generating unit is connected in parallel to the heat exchanger tube in a plurality of hot water supply lines arranged at intervals in the agricultural facility, and installed in the hot water supply line at intervals in parallel to a plurality of indoor heat exchanger, heat exchanger tube to produce hot air from hot water An agricultural heating system having a solid fuel boiler connected to the hot water supply line and including a hot water recovery line for recovering hot water through an indoor heat exchanger to a heat storage tank. The method according to claim 9 or 10,
A first temperature sensor for detecting hot water temperature in the boiler, a second temperature sensor for detecting hot water temperature in a heat storage tank, a third temperature sensor for detecting an internal temperature of an agricultural facility in which the indoor heat exchanger is installed, and detection of each temperature sensor Agricultural heating equipment comprising a boiler for solid fuel further comprising a control unit for controlling the operation by calculating the temperature. Detecting the hot water temperature inside the boiler and comparing it with a set value;
Circulating the hot water to the heat storage tank by driving a pump when the temperature of the hot water in the boiler is higher than the set value,
Detecting and comparing the hot water temperature in the heat storage tank with a set value,
Repeating the above process when the hot water temperature in the heat storage tank is less than or equal to the set value, and stopping the operation of the boiler if the temperature is greater than or equal to the set value, and
Supplying warm air to agricultural facility using hot water in heat storage tank
Heating equipment control method comprising a. The method of claim 12,
The warm air supply step
Detecting the temperature inside the agricultural facility and comparing it with a set value,
Circulating hot water in the heat storage tank to the inside of the agricultural facility by driving a pump when the temperature inside the agricultural facility is lower than the set value;
A step of producing hot air from hot water and blowing air into the agricultural facility by operating an indoor heat exchanger in the agricultural facility.
Heating equipment control method comprising a.

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