KR100321586B1 - Device for preventing generation of adhering ores in mixing material processing shut - Google Patents

Abstract

PURPOSE: A device for preventing generation of adhering ores in mixing material processing shut is provided to control temperature change of cooling water or heating water and sharply improve reliability of manufactures. CONSTITUTION: A device for controlling combustion of an absorption-heating and cooling device has an operation mode detection unit(121) receiving a predetermined output signal from a unit for setting an operation mode set unit(120) and detecting the operation mode; an operation mode discrimination unit(122) deciding the operation mode; a cooling water temperature detection unit(132) detecting temperature of cooling water; a heating water temperature detection unit(135) detecting temperature of heating water; a hot water temperature detection unit(138) detecting temperature of hot water; a tapping temperature selection unit(139) selecting tapping temperature by the output signals of the temperature detection units and operation mode discrimination unit; a tapping temperature discrimination unit(125) selecting the set temperature according to the each mode; a set temperature selection unit(145); a set temperature discrimination unit(126); a tapping temperature/set temperature comparing unit(128); a program memory, storing a combustion rate operation formula of each mode; a combustion rate operation formula selection unit(150); a combustion rate operation formula output unit(127); and a combustion control unit(1500) calculating combustion rate and outputting the calculated value to a gas control unit(153) and then controlling the opening and shutting degree of a control valve. Accordingly, temperature change of cooling water or heating water is controlled by quick response property.

Description

Combustion control device and absorption method of absorption type air conditioner

The present invention relates to a combustion control device and a method of an absorption type air conditioner, and in particular, in a dual-effect absorption type air conditioner, a heat exchanger for supplying hot water is provided separately for cooling / heating water generated when using hot water simultaneously with cooling or heating. The present invention relates to a combustion control apparatus and method for absorbing air conditioners capable of suppressing temperature change.

In the general air conditioning and hot water combined equipment, the microcomputer is used to control the combustion state of the combustion apparatus, and the combustion amount of the burner is determined from the predetermined variables (parameters) by a predetermined equation according to the program stored in the microcomputer. In response to the determined combustion amount, the control values of the blower and the proportional valve are calculated, and the blower and the proportional valve are controlled based on each control device.

In the related art, in the case of the heating and hot water supplying apparatus, the amount of combustion is determined by a single combustion amount calculation formula when the heating or hot water is used, and each control value is calculated. In the case of hot water supply or heating, although the time at which the result of the combustion amount control results and the desired effect are different from each other, it is inconvenient by controlling by a single combustion amount calculation formula.

In particular, in the case of absorption type air conditioners, cooling or heating and hot water can be supplied, and the composition of the combustion device is complicated, and the control response speed of the combustion device is large depending on the method of use.

Therefore, in order to solve such problems (that is, prolonged control response time and lack of immediate availability, responsiveness to desired effects), a large number of combustion calculations are stored in the program of the microcomputer and the appropriate combustion formula is selected according to the operating conditions of the device. It was configured to achieve the lowest combustion control.

At this time, the dual-effect absorption air conditioner is designed to increase the efficiency by sending the refrigerant vapor generated in the high temperature regenerator during the cooling operation to the low temperature regenerator, which is generated in the high temperature regenerator when generating hot water through a separate hot water heat exchanger. The refrigerant vapor is divided into a low temperature regenerator and a hot water heat exchanger to affect the temperature of the cooling water.

Existing combustion control devices are calculated by a single combustion amount calculation formula, but in the case of the absorption type air conditioner as described above is not suitable, when using hot water for cooling to supply more heat in a quick time There is a need to reduce temperature variations, which requires a new combustion control.

Even during heating, high temperature refrigerant steam is supplied to two heat exchangers, such as a heat exchanger and a heat exchanger for generating hot water, to further control the amount of combustion. In other words, when using hot water for heating, it is necessary to calculate by replacing the temperature difference (set temperature-current tapping temperature), which is the basic data in the combustion amount control formula, with a new parameter, that is, a new amount of combustion changed from the set temperature of hot water to the current hot tapping temperature. Controlled expression should be used.

SUMMARY OF THE INVENTION An object of the present invention is to provide a combustion control device and a method for controlling an absorption air conditioner capable of suppressing a temperature change of cooling water or heating water when hot water is used simultaneously with cooling or heating in a cooling air or heating mode in a compact absorption chiller. There is.

In other words, when determining the combustion amount using PID control in the combustion amount control of the absorption type air conditioner, the temperature of the cooling water (heating water) is affected when using hot water during the cooling operation or during the heating operation. The purpose of the present invention is to reduce the effect of temperature change of cold (warm) waterproofing by using a combustion equation that takes into account the parameters of proportional control components of hot water and tapping temperature.

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

1 is a block diagram of a dual-effect absorption type air conditioner to which the present invention is applied, and the latent heat of evaporation from the cooling water flowing into the heat pipes by spraying and evaporating the refrigerant water through the nozzle 10a to the outside of the heat pipes. Evaporator 10 in a vacuum state to take away; An absorber (11) for forming a liquid film along the heat transfer pipe in which the absorber of bromide (LiBr) solution sprayed from the nozzle (10a) provided at the bottom of the tray device is installed to absorb refrigerant vapor; The high temperature regenerator 12 which absorbs the refrigerant vapor and transfers the diluted LiBr solution through the solution pump 17 and heats it with the heat of combustion of the combustion device 22 to generate the concentrated LiBr solution and the high temperature refrigerant vapor. Wow; The thin solution transferred by the solution pump 17 is sprayed to the outside of the heat transfer tube, the hot refrigerant medium generated by the high temperature regenerator 12 is supplied into the heat transfer tube, and the thin solution sprayed to the outside of the heat transfer tube is heated to a thick solution. A low temperature regenerator 13 for concentrating; A condenser 14 for introducing refrigerant vapor into the condenser and condensing the vapor by a cooling fan; A heating water heat exchanger (15) for raising the temperature of the heating water by using the refrigerant vapor condensation heat of the high temperature regenerator (12); A hot water heat exchanger 16 for producing hot water using the refrigerant vapor condensation heat of the high temperature regenerator 12; A high temperature solution heat exchanger (17) for heat exchanging the high temperature absorbent concentrated in the high temperature regenerator (12) and the diluted LiBr solution in the lower part of the absorber (11); A low temperature heat exchanger (18) for performing heat exchange with the absorbent concentrated in the high temperature regenerator (12) and the low temperature regenerator (13) and the dilute LiBr solution under the absorber (11); A solution pump 19 for supplying a thin LiBr solution having a reduced absorption ability collected under the absorber to the high temperature regenerator 12 and the low temperature regenerator 13 in parallel; A cooling fan 20 for cooling the condenser 14 and the absorber 11; A refrigerant pump 21 for supplying a refrigerant to the heat pipe of the evaporator 10; A combustion device 22 for heating the high temperature regenerator 12; It is composed of a control unit 100 for controlling the operation of various pumps, fans, and the combustion device (22).

The combustion device 22 is omitted in the drawings, but the electronic valve for gas supply, the proportional control valve for adjusting the gas supply amount, the burner, the combustion chamber in which the burner is accommodated, the supply fan for supplying combustion air to the combustion chamber, the ignition means and It is composed of an ignition detecting means or the like, and its operation is controlled in accordance with an output signal of each functional component part by a control command of the control unit 100.

The control unit 200, which is a main component of the present invention, is composed of the microcomputer 101 'as shown in FIG. 2, and an operation mode setting unit 120 for setting an operation mode of a hot / cold absorption type air conditioner. A driving mode recognition unit 121 for receiving a predetermined output signal from the driving mode and recognizing the driving mode; A driving mode determination unit 122 for determining a driving mode based on an output signal of the driving mode recognition unit 121; A cooling water temperature recognition unit 132 which receives an output signal of the cooling water temperature detection thermistor 130 for detecting the cooling water temperature through the cooling water temperature detector 131 and recognizes the cooling water temperature; A heating water temperature recognition unit 135 receiving an output signal of the heating water temperature detection thermistor 133 for detecting the heating water temperature through the heating water temperature detector 134 and recognizing the heating water temperature; A hot water temperature recognition unit 138 which receives an output signal of the hot water temperature detection thermistor 136 for detecting hot water temperature through the hot water temperature detector 137 and recognizes the hot water temperature; A tapping temperature selecting unit 139 for selecting tapping temperature based on the output signals of the temperature recognition units and the output signal of the operation mode determination unit 122; A tapping temperature determining unit 125 configured to determine tapping temperature corresponding to the output of the tapping temperature selecting unit 139; It is set in the hot water setting unit 140 to receive the cooling water, heating water and hot water temperature output through the data transmission and reception unit 144 and under the control of the operation mode determination unit 122 to select the set temperature according to each mode A set temperature selector 145; A set temperature determiner 126 which determines a set temperature corresponding to an output signal of the set temperature selector 145; A tapping temperature / setting temperature comparison unit 128 for comparing the tapping temperature Ton and the set temperature Test output through the tapping temperature determining unit 125 and the set temperature determining unit 126; A program memory 102 in which a combustion amount combustion formula for each mode is stored; A combustion amount calculation selector 150 for calling a combustion amount calculation formula corresponding to an output signal of the operation mode determination unit 122 among the combustion amount calculation formulas stored in the program memory 102; A combustion amount calculation output unit 127 for outputting a combustion amount calculation formula corresponding to the output signal of the combustion amount calculation expression selecting unit 150; The combustion control unit 1500 which calculates a combustion amount based on the output signal of the tapping temperature / set temperature comparison unit 128 and the softening amount calculation equation selected by the combustion amount calculation selector 150 and executes gas combustion based on the value. )Wow; It is characterized in that it comprises a gas control unit 153 for receiving the output signal of the combustion control unit 1500 to control the opening and closing amount of the control valve through the functional component unit 154.

In this case, the combustion control unit 1500 calculates a combustion amount based on the output signal of the tapping temperature / set temperature comparison unit 128 and the combustion amount calculation formula selected by the combustion amount calculation formula selector 150. )Wow; Combustion operation execution unit 152 for performing gas combustion in accordance with the output signal of the combustion operation driver 151.

On the other hand, the method of the present invention, as shown in Figure 3, when the operation switch is 'ON' detects which mode of operation mode selected by the user, and in the cooling mode, the cooling water set temperature (TCOL_ON) to the cooling water set temperature ( Decommission TCOL_SET and multiply it by the proportional constant (f1) to determine the gas supply and perform combustion control.In heating mode, subtract the cooling water set temperature (TWOM_SET) from the heating water tapping temperature (TWOM_ON). Accordingly, the gas supply amount is determined by the multiplied proportional constant (12), and the combustion control is performed.In the cooling and hot water mode, the heating and hot water mode, or the hot water mode, the hot water tapping temperature (THOT_ON) is set to the hot water set temperature ( It is characterized in that the combustion control is performed by determining the gas supply amount by subtracting THOT_SET and multiplying the proportional constant (f3) by the result value (Fcal).

Referring to the effects of the present invention as follows.

First, a small dual-effect absorption air conditioner to which the present invention is applied uses water as a refrigerant and a LiBr solution as an absorbent, and when the refrigerant is sprayed onto the cooling water pipe passing through the evaporator 10 with the vacuum inside the apparatus, By removing the latent heat of evaporation from the cooling water in the tube, the cooling water in the cooling water pipe is cooled, and the refrigerant vapor evaporated in the evaporator 10 moves to the absorber 11 and is absorbed by the LiBr solution sprayed from the top.

On the other hand, during heating, the high temperature regenerator 12 passes the high temperature refrigerant vapor through a separate heat exchanger to melt the refrigerant vapor, and at this time, the heat exchanged water is used for heating.

In addition, the hot water is additionally installed in the steam pipe for heating the heat from the high temperature regenerator 12 to the heat exchanger 15, the heat exchanger 16 for hot water is added, the steam flows into the hot water heat exchanger 16 when using hot water The solenoid valve is installed so that it may be.

As shown in FIG. 1, the dual-effect absorption air conditioner has an evaporator 10 in which water as a refrigerant evaporates, an absorber 11 in which evaporated refrigerant vapor is absorbed by a LiBr solution as an absorbent, and this absorber 11. The high temperature regenerator 12 using the direct heat of the gas in regenerating the diluted absorbing solution into the thick solution due to the absorption of the refrigerant vapor in the c), and the regeneration by using the high temperature refrigerant vapor generated in the high temperature regenerator 12 The low temperature regenerator 13, the condenser 14 for liquefying the low temperature refrigerant vapor passed through the low temperature regenerator 13, the indoor unit and the high temperature regenerator for depriving the latent heat of evaporation from the evaporator 10 to heat exchange the cooled water in the room ( Heating heat exchanger (15) for making the heating water by using the high temperature refrigerant steam generated in 12), for hot water for making hot water using the high temperature refrigerant steam generated in the high temperature regenerator (12) It consists of a cooling fan 20, such as to cool the heat exchanger 16 and the condenser 14 and the absorber 11.

At this time, the inside of the evaporator 10 and the absorber 11 maintains a vacuum to allow the refrigerant to evaporate even at low temperatures, and the refrigerant injected into the evaporator 10 is a refrigerant pump 19 installed between the supply pipe and the evaporator. It is sprayed in the atomized state by the nozzle 100a located at the top of the evaporator and evaporated from the surface of the heat pipe of the evaporator, and the latent heat of evaporation generated at this time is sent to the absorber 11.

The latent heat of evaporation is to remove the surrounding heat while the refrigerant evaporates from the surface of the heat pipe, and when the refrigerant is sprayed on the cooling water heat pipe passing through the evaporator 10, the latent heat of evaporation is taken away from the cooling water passing through the heat pipe. It is possible to supply cold air from the indoor unit (23).

The indoor unit 22 is provided with a fan and a radiator to supply cold air to the room side, the cooling water passed through the radiator absorbs heat in the room and flows back into the evaporator 10 in a state where the temperature is raised, In addition, the cooling by the latent heat of evaporation in the evaporator heat pipe is repeated to be used as an indoor air conditioner.

As such, the refrigerant vapor evaporated in the evaporator 10 and having latent heat of evaporation moves to the upper portion of the absorber 11 and is absorbed by the absorbing solution sprayed from the nozzle 100a located at the upper end of the absorber.

The absorbent used at this time is mainly bromide (LiBr) solution. The higher the concentration, the lower the temperature, the higher the absorption capacity.The LiBr solution is absorbed in the lower part of the absorber by absorbing the refrigerant vapor while the thick solution sprayed on the upper part of the absorber 11 flows through the heat pipe. A solution having a diminished capacity is collected and forcedly transferred to a high temperature regenerator 12 and a low temperature regenerator 13 by using a solution pump 17 to concentrate the concentrated solution again.

The high temperature regenerator 12 heats the thin LiBr solution transferred from the absorber 11 by the combustion heat of the burner by the combustion device 22 disposed on the front surface to evaporate the refrigerant to generate a high temperature refrigerant vapor, The LiBr solution is regenerated, and the low temperature regenerator 13 concentrates the dilute solution transferred from the absorber 11 to a medium concentration solution using a high temperature refrigerant vapor generated in the high temperature regenerator 12 as a heating source.

The solution regenerated in the high temperature regenerator 12 and the low temperature regenerator 13 is sprayed again from the nozzle on the upper side of the absorber 11 as a LiBr absorbing solution having an appropriate concentration while passing through the pipe, and the surface of the evaporator 10 in the cooling water heat pipe. Resorption of the refrigerant vapor, which has lost the latent heat of evaporation.

The refrigerant vapor generated in the high temperature regenerator 12 and passed through the low temperature regenerator 13 forms a cycle to be liquefied by the condenser 14 cooled by air and then supplied to the refrigerant of the evaporator 10 again.

In this way, by utilizing the high-temperature refrigerant vapor generated from the high temperature regenerator 12 again, the low temperature regenerator 13 has the function of regenerating the absorbent solution for two times, thereby saving the fuel efficiency and efficiency. do.

On the other hand, the refrigerant vapor generated in the high temperature regenerator 12 heat exchanges and condenses while passing through the heat exchanger 18 for heating without passing through the low temperature regenerator 13 when the heating mode is used, and the condensation heat generated at this time is also inputted to the other side of the heat exchanger. It will increase the temperature of the heating water. The condensed refrigerant vapor is fed back to the bottom of the hot regenerator.

In addition, in the cooling mode in which the hot water is used, the refrigerant vapor is supplied into two parts, the low temperature regenerator 13 and the hot water heat exchanger 16, of which the refrigerant vapor is supplied to the hot water heat exchanger 16. The heat discharges the condensation heat while passing through the thermal bridge, and the heat of condensation increases the temperature of the low temperature (eg 20 degrees) water input to the heat exchanger to the high temperature (40 degrees).

In the heating mode, the refrigerant vapor is supplied to the heat exchanger 15 and the heat exchanger 16 for hot water to condense through each heat exchanger, and then input to the high temperature regenerator 12. Water and hot water are produced.

In addition, the combustion device 22 and the electronic valve for controlling the gas supply amount in accordance with the output signal of the control unit (100). Proportional control valve to control the supply amount of gas, burner for directly burning gas, combustion chamber having a predetermined volume to accommodate the burner, air supply fan for supplying combustion air to the combustion chamber, ignition means as a speaker and ignition A sensing means or the like is provided, and the driving of each functional component part is controlled by a control command of the control unit.

On the other hand, the control unit 200 is configured around the microcomputer 101 ', the operation mode recognition unit 121 in the microcomputer 101' is an operation mode setting unit for setting the operation mode of the absorption type air-conditioner combined with hot water ( Receives an output signal of 120 to recognize which operation mode the user selects.

In addition, the operation mode determination unit 122 determines the operation mode selected by the user based on the output signal of the operation mode recognition unit 121 and outputs the result of the tapping temperature selection unit 139 and the set temperature selection unit 145. And outputting to the combustion amount calculation selector 150 to select the tapping temperature determining unit 125, the set temperature determining unit 126, and the combustion amount calculating output unit 127 in each unit.

In addition, the cold water temperature detecting unit l31, the heating water temperature detecting unit 134, and the hot water temperature detecting unit 138 detect the cooling water temperature detecting thermistor 130, the heating water temperature detecting thermistor 133, and the hot water temperature detecting unit, respectively. The detected temperature of the cooling water, the heating water and the hot water temperature detected by the thermistor 136 and output through the cold water temperature detector 131, the heating water temperature detector 134, and the hot water temperature detector 137, and the resultant values It outputs to the tapping temperature selection unit 139.

Therefore, the tapping temperature selecting unit 139 selects tapping temperature based on the output signals of the temperature recognition units and the output signal of the operation mode determining unit 122, and outputs the output signal of the tapping temperature selecting unit 139. The tapping temperature determining unit 125 may receive the tapping temperature.

In addition, the set temperature selection unit 145 is set in the hot water setting unit 140 and receives the cooling water, heating water and hot water temperature output through the data transmission and reception unit 144 and at the same time the operation mode determination unit 122 The set temperature is selected for each mode by receiving the output signal of.

In addition, the tapping temperature / set temperature comparison unit 128 compares the tapping temperature (Ton) and the set temperature (Test) output through the start temperature determining unit 125 and the set temperature determining unit 126 as a result Is provided to the combustion operation driver 151.

On the other hand, the combustion amount combustion amount combustion equation (for example, f1 (TCOL_ON -TCOL_SET), f2 (TWOM_ON-TWOM_SET) and f3 (THOT_ON-THOT_SET) according to each combustion mode are stored in the program memory 102, and the combustion amount calculation When the expression selector 150 requests, it outputs a corresponding combustion amount calculation formula.

In addition, the output signal of the combustion amount calculation selector 150 is input to the combustion operation driver 151 in the combustion control unit 1500 through the combustion amount calculation output unit 127.

Accordingly, in the combustion operation driver 151, the combustion amount Fcal according to each mode is determined by the output signal of the tapping temperature / set temperature comparison unit 128 and the combustion amount calculation formula selected by the combustion amount calculation formula selector 150. Will be calculated.

When the combustion amount is calculated as described above, the combustion operation execution unit 152 in the combustion control unit 1500 outputs the gas combustion control signal corresponding thereto to the combustion device 22 through the gas control unit 153 and the functional part unit 154. The combustion apparatus performs combustion control in response to a combustion amount calculation formula for each combustion mode.

In more detail in connection with the method of FIG. 3 of the present invention, the microcomputer 101 'in the control unit 100 recognizes the on state of the operation switch, and according to the setting state of the operation mode setting unit 120, the combustion apparatus ( 22), the operation mode is recognized by five operation modes (① cooling, ② cooling / hot water, ③ heating, ④ heating / hot water, ⑤ hot water) according to the operation mode set by the operation mode setting unit 120. Recognized by the unit 121, the recognized signal output is input to the operation mode determination unit 122.

Accordingly, the operation mode determination unit 122 determines the input signal into five operation modes and selects a tapping temperature, a set temperature, and a combustion amount calculation formula according to the corresponding mode.

That is, the output signal of the operation mode determination unit 122 is input to the tapping temperature selecting unit 139, the set temperature selecting unit 145, the combustion amount calculation selecting unit 150, and the like. The temperature determination unit 126 and the combustion amount calculation output unit 127 are selected.

Selecting tapping temperature, setting temperature, combustion amount calculation formula, etc. as the control parameter according to the operation mode as described above, the control response characteristics of the device depends on the type of use and the type of equipment used in absorption type air conditioners for hot water combined use To make the most of it.

On the other hand, the tapping temperature selection unit 139 and the set temperature selection unit 145 of the tapping temperature determination unit 125 and the set temperature determination unit 126 of the input signal by the output signal of the operation mode determination unit 122 The temperatures are selected, and the above temperatures are also input to the tapping temperature / set temperature comparison unit 128.

When the output signal of the operation mode determination unit 122 is input to the combustion amount combustion type selection unit 150, the combustion amount calculation formula stored in the program memory 102 of the microcomputer is determined, and the corresponding combustion amount calculation formula is called to determine the combustion amount calculation formula. When the output signal of the tapping temperature / set temperature comparison unit 128 is input to the combustion operation driving unit 151 of the combustion control unit 1500, the combustion amount is calculated.

According to the operation mode selected by the user, the combustion amount is calculated as follows by the corresponding temperature set values (one-sided water, heating water and hot water temperature set values) and current tapping temperature recognition values.

1) In the cooling mode, the actual cooling water set value (TCOL_SET) is fixed (e.g. 7 ℃), so the tapping temperature (TOCOL_ON) of cooling water is discharged as the parameter (Fcal = f1 (TCOL_ON -TCOL_SET)). do.

2) In the cooling / hot water mode, the parameter (fcal) of the control equation is calculated by multiplying the proportionality constant (f3) by the value obtained by subtracting the hot water tapping temperature (THOT_ON) from the hot water set temperature (THOT_SET).

3) In the heating mode, the parameter (Fcal) of the control equation is calculated by multiplying the proportionality constant (f2) by the heating water set temperature (TWOM_SET) minus the heating water tapping temperature (TWOM_ON).

4) In the case of the heating / hot water mode, the parameter Fcal of the control equation is calculated by the same hot water set temperature (THOT_SET) and hot water tapping temperature (THOT_ON) as in the cooling / hot water mode.

5) In the case of the hot water mode, the parameter Fcal of the control equation is calculated by the same hot water set temperature THOT_SET and hot water tapping temperature THOT_ON as in the cooling / hot water mode or the heating / hot water mode.

The combustion amount is calculated by the combustion operation driving unit 151 of the combustion control unit 1500 according to the combustion amount calculation formula selected by the operation mode using the two output signals, the temperature set value and the tapping temperature recognition value as parameters, and according to the output signal. Appropriate gas combustion control according to the operation mode is executed through the combustion calculation execution unit 152, the gas control unit 153, and the functional part unit 154.

In this way, if you select the combustion amount calculation formula according to the operation mode and set the appropriate parameters can be expected more rapid control effect.

Meanwhile, the absorption type air conditioner to which the present invention is applied produces three kinds of water, such as cooling water, heating water, and hot water.

At this time, the cooling water is produced through the following process.

① Refrigerant steam generation and concentrated liquid regeneration by the heat of combustion of gas in the high temperature regenerator 12

② Regeneration of intermediate solution by refrigerant vapor in low temperature regenerator (13)

③ Regeneration of refrigerant in the condenser 14

④ spray spraying the recycled solution in the absorber

⑤ Cooling water generation by evaporator 10 and refrigerant tray and refrigerant evaporation

Since cooling water is generated through the above five processes cyclically, the response characteristics of the air conditioners are considerably slowed down. Therefore, when PID control is performed with the temperature setting of cooling water tapping and cooling water only, the high temperature regenerator is late. There is a risk of overheating at speed and crystallization.

Therefore, in the present invention, in the cooling mode, the proportional control (P) is selected as the lowest value allowed by the device.

P = 5 (kcal / min ℃), integral constant (I) = 1/32, differential constant (D) = 2 when the difference between the cooling water tapping temperature and the cooling water set temperature (△ T)> 0

If ΔT <0, P = 32 (kcal / min ° C), I = 1/8, D = 2

In addition, the heating water is condensed by the refrigerant vapor generated in the high temperature regenerator 12 passing through the plate heat exchanger 15 for heating, so that the response speed is faster than that of the cooling water, but the actual heating effect of the heating tube is installed on the floor. It does not need fast response speed because it is made through, rather it can control a slow response speed without overshoot.

Therefore, in the present invention, the control coefficients are selected as follows.

If ΔT> 0, P = 10 (kcal / min ° C), I = 1/32, D = 1

P = 64 (kcal / min ° C) for ΔT <0, I = l / 8, D = 1

In addition, the hot water is condensed by the refrigerant vapor generated in the hot water regenerator 12 through the hot water plate heat exchanger 16, such as heating water, and the response speed is increased, and the user immediately changes the temperature. Since it is a condition that can be felt, a control result with a fast response speed and almost no amplitude of the hot water temperature width is required, so the control coefficients are selected as follows.

P = 15 (kcal / min ° C), ΔT> 0, I = 1/32, D = 4

If ΔT <0, P = 80 (kcal / min ° C), I = 1 / l6, D = 4

On the other hand, in the case of using heating and hot water or cooling and hot water, the control coefficient was selected according to the above-mentioned hot water use conditions.

As described above, according to the present invention, the temperature of the cooling water (heating water) is affected when the hot water is used in the cooling operation or the heating operation when determining the combustion amount using PID control in the combustion amount control of the absorption type air conditioner. In this case, by using the combustion formula that considers the parameters of the proportional control component of the set hot water and tapping temperature, it has a fast response and can suppress the temperature change of cooling or heating water, and also greatly improves the reliability of the product. It can be done.

1 is a schematic diagram of a dual-effect absorption air conditioner to which the present invention is applied.

2 is a flow chart illustrating the method of the present invention.

3 is a block diagram of the device of the present invention.

Explanation of symbols on the main parts of the drawings

10: evaporator (EVA) 11: absorber (ABS)

12: high temperature regenerator (HG) 13: low temperature regenerator (LG)

14: condenser (CON) 15: heat exchanger (HX2) for heating

16: hot water heat exchanger (HX1) 17: high temperature heat exchanger (HHX)

18: low temperature heat exchanger (LHX) 19: solution pump (S.P.)

20: Cooling fan (FAN) 21: Refrigerant pump (R.P)

22: combustion apparatus 100: microcomputer

102: program memory 120: operation mode setting unit

121: operation mode recognition unit 122: operation mode determination unit

125: tapping temperature determination unit 126: set temperature determination unit

127: combustion amount calculation output unit 128: tapping temperature / set temperature comparison unit

130: Thermistor for detecting cooling water temperature

132: cooling water temperature detection unit 133: thermistor for detecting the heating water temperature

135: heating water temperature detection unit 136: hot water temperature detection thermistor

138: hot water temperature detection unit 140: hot water setting unit

145: set temperature selector 150: combustion amount calculation selector

151: combustion operation driving unit 152: combustion operation execution unit

153: gas control unit 154: functional parts

200: control unit 1500: combustion control unit

Claims (3)

An operation mode recognition unit 121 that receives a predetermined output signal from the operation mode setting unit 120 for setting an operation mode of the hot water absorption type air conditioner; A driving mode determination unit 122 for determining a driving mode based on an output signal of the driving mode recognition unit 121; A cooling water temperature recognition unit 132 for recognizing the temperature of the cooling water detected by the cooling water temperature detection thermistor 130; A heating water temperature recognition unit 135 for recognizing the temperature of the heating water detected by the heating water temperature detection thermistor 133; A hot water temperature recognizing unit 138 recognizing a temperature of hot water detected by the hot water temperature detection thermistor 136; A tapping temperature selecting unit 139 for selecting tapping temperature based on the output signals of the temperature recognition units and the output signal of the operation mode determination unit 122; A tapping temperature determining unit 125 configured to determine tapping temperature corresponding to the output of the tapping temperature selecting unit 139; A set temperature selection unit 145 for receiving the cooling water, the heating water, and the hot water temperature set by the hot water setting unit 140 and selecting the set temperature according to each mode under the control of the operation mode determination unit 122; A set temperature determiner 126 which determines a set temperature corresponding to an output signal of the set temperature selector 145; A tapping temperature / setting temperature comparison unit 128 for comparing the tapping temperature Ton and the set temperature Test output through the tapping temperature determining unit 125 and the set temperature determining unit 126; A program memory 102 in which a combustion amount combustion formula for each mode is stored; A combustion amount calculation selector 150 for calling a combustion amount calculation formula corresponding to an output signal of the operation mode determination unit 122 among the combustion amount calculation formulas stored in the program memory 102; A combustion amount calculation output unit 127 for outputting a combustion amount calculation formula corresponding to the output signal of the combustion amount calculation expression selecting unit 150; The combustion amount is calculated based on the output signal of the tapping temperature / set temperature comparison unit 128 and the combustion amount calculation formula selected by the combustion amount calculation formula selector 150, and the value is output to the gas controller 153 to burn the combustion apparatus ( 22. A combustion control device for an absorption type air conditioner, characterized in that it comprises a combustion control unit 1500 for controlling the amount of opening and closing of the control valve provided in 22). The combustion control apparatus of claim 1, wherein the combustion control unit 1500 calculates a combustion amount based on an output signal of the tapping temperature / set temperature comparison unit l28 and a combustion amount calculation formula selected by the combustion amount calculation selector 150. Arithmetic driver 151; Combustion control unit of the absorption type air conditioner, characterized in that composed of a combustion operation execution unit for performing gas combustion in accordance with the output signal of the combustion operation driver (151). When the operation switch is 'ON', it detects which operation mode is selected by the user.In the cooling mode, the result is obtained by subtracting the cooling water set temperature (TCOL_SET) from the cooling water tapping temperature (TCOL_ON) and then multiplying the proportional constant (f1). (Fcal) determines the gas supply amount and performs combustion control.In heating mode, the heating water tapping temperature (TWOM_ON) is subtracted from the cooling water set temperature (TWOM_SET) and multiplied by the proportional constant (12) to the resulting value (Fcal). Combustion control is performed by determining the gas supply amount.In the cooling and hot water mode, heating and hot water mode or hot water mode, the hot water tapping temperature (THOT_ON) is subtracted from the hot water set temperature (THOT_SET) and multiplied by the proportional constant (13). Combustion control method of the absorption air conditioner, characterized in that consisting of a process of performing the combustion control by determining the supply amount of gas (Fcal).