KR100620375B1 - Air Conditioner of GHP method - Google Patents

Abstract

The present invention relates to a GHP air conditioner having a gas engine and a drain neutralizer for neutralizing acidic condensate generated in exhaust gas of the gas engine, wherein the drain neutralizer has a filter region for neutralizing the condensate therein. The filter portion includes a main body portion, a neutralizing agent storage portion storing a liquid neutralizing agent, a sensing portion measuring an acidity of the condensate in the filter region, and a neutralizing agent stored in the neutralizing agent storage portion when the measured acidity is less than a predetermined range. It characterized in that it comprises a neutralization control unit for adjusting to be discharged to. As a result, it is possible to provide a GHP air conditioner having a drain neutralizer having improved neutralization efficiency.

Description

Air Conditioner of GHP method

1 is a schematic flowchart of a GHP type air conditioner according to a first embodiment of the present invention;

2 is a schematic configuration diagram of a compressor driving unit of FIG. 1;

3 is a configuration diagram of the drain neutralizer of FIG.

4 is a configuration diagram of a drain neutralizer used in a GHP type air conditioner according to a second embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: outdoor unit 2: indoor unit

10: compressor 20: compressor drive unit

30 condensation part 40 expansion part

50: evaporator 100: gas engine

101: exhaust gas manifold 200: exhaust gas heat exchanger

300: gas discharge unit 310: exhaust gas piping

311: exhaust silencer 312: exhaust trapper

320: drain neutralizer 321: neutralizer body portion

322 filter area 323 neutralizer

324: neutralizer storage unit 326: detection unit

327: neutralization control unit 330: condensate piping

353 auxiliary neutralizer

400: gas supply unit 410: air supply line

420: gas supply line 430: mixer

500: cooling unit 510: cooling unit

511: radiator 512: refrigerant heater

520: coolant circulation pipe 530: cooling pump

540: Coolant Supplement

The present invention relates to a GHP type air conditioner using a gas engine heat pump (GHP), and more particularly, to the efficiency of a drain neutralizer for neutralizing acidic condensate generated in exhaust gas of a gas engine. It relates to a high GHP type air conditioner.

An air conditioner is a refrigeration and heating cycle engine consisting of a compressor, condenser, expansion valve, and evaporator. When a refrigerant is circulated in a closed circuit such as a condenser, an expansion valve, or an evaporator by using a compressor, the refrigerant is changed into a liquid, gas, and liquid state, and the heat is discharged from the condenser and the external heat is absorbed from the evaporator. Thus, the condenser is used as a heating source and the evaporator is used as a cooling source. Here, using a gas engine as a power source for driving the compressor is referred to as a gas engine heat pump (GHP) method.

Generally, the compressor driving unit used in the GHP type air conditioner is a gas engine, an exhaust gas heat exchanger connected to the exhaust port of the gas engine, a gas supply unit for supplying gas to the gas engine, and a gas exhaust unit for exhausting the gas burned from the gas engine. And a cooling unit for cooling the gas engine.

The gas discharge unit includes a drain neutralizer for neutralizing the acidic condensate generated by condensing moisture contained in the exhaust gas in the process of discharging the exhaust gas.

Conventional drain neutralizers include a neutralizer body part having a filter area for neutralizing acidic condensate therein, a neutralizer stacked on the filter area, and a damper part having a partition structure in the filter area for condensing uncondensed exhaust gas. , An inlet portion into which the condensate flows into the neutralizer body and a discharge portion through which the neutralized condensate is discharged.

The neutralizer used in the drain neutralizer is generally a solid phase neutralizer such as calcium carbonate (CaCO ₃ ), and has a diameter of 5 to 10 mm. Here, since the neutralization reaction occurs on the particle surface of the neutralizing agent, the smaller the particles of the neutralizing agent, the better the neutralizing efficiency.

However, in the case of using a solid neutralizer, if the size of the neutralizer is reduced to increase the neutralization efficiency, the neutralizer particles are condensed due to salts generated after the neutralization reaction, thereby causing entanglement. On the other hand, when the size of the neutralizing agent is increased due to these problems, there is no aggregation after the neutralization reaction, but the neutralization efficiency is lowered.

Accordingly, an object of the present invention is to provide a GHP air conditioner having a drain neutralizer which improves the neutralization efficiency by using a liquid neutralizing agent.

The object of the present invention is a GHP air conditioner having a gas engine and a drain neutralizer for neutralizing acidic condensate generated in exhaust gas of the gas engine, wherein the drain neutralizer is a filter for neutralizing the condensate therein. A neutralizer body having a zone, a neutralizer storage for storing a liquid neutralizer, a detector for measuring acidity of the condensate in the filter zone, and a neutralizer stored in the neutralizer storage if the measured acidity is below a predetermined range. It is achieved by a GHP type air conditioner comprising a neutralization control unit for controlling to discharge to the filter area.

Here, the acidity range controlled by the neutralization control unit to discharge the neutralizing agent to the filter region is preferably pH 6 or less.

In the GHP type air conditioner, the drain neutralizer further includes an inlet for condensate to be introduced into the drain main body, and an outlet for neutralizing and discharging the condensate, and the sensing unit is disposed adjacent to the outlet. Is preferred.

In addition, it is preferable that a solid auxiliary neutralizer is disposed in the filter region adjacent to the discharge portion.

As such, by using the liquid neutralizer, effective neutralization is possible, maintenance and repair of the drain neutralizer is easy, and generation of waste can be reduced.

Hereinafter, a GHP air conditioner using a gas engine heat pump (GHP) according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the GHP type air conditioner is schematically illustrated with its features highlighted.

In addition, prior to description, in the various embodiments, components having the same configuration will be described in the first embodiment by using the same reference numerals, and in other embodiments, only the configuration different from the first embodiment will be described. Let's do it.

The GHP air conditioner according to the first embodiment of the present invention is largely classified into an outdoor unit and an indoor unit. As shown in FIG. 1, the outdoor unit 1 during heating expands the liquid refrigerant of medium temperature and high pressure to change into a liquid refrigerant having a low temperature and low pressure, and a low temperature low pressure liquid transferred from the expansion portion 40. The evaporator 50 is evaporated using a fine capillary tube to obtain latent heat of evaporation and is converted into a low-temperature low-pressure gas refrigerant. And a compressor driving unit 20 for driving the compressor 10. The indoor unit 2 condenses the high temperature and high pressure gas refrigerant transferred from the compressor 10 to release the latent heat of condensation. Condensation unit 30 is included.

In addition, during cooling, the refrigerant circulates as opposed to heating, and the heat exchanger functioning as the evaporator 50 in the outdoor unit 1 during heating functions as the condensing unit 30 during cooling, and the indoor unit 2 when heating. In the heat exchanger functioning as the condensation unit 30 is to function as the evaporation unit (50) when cooling.

Accordingly, the GHP air conditioner is heated and cooled by using the condensation unit 30 as a heating source and the evaporation unit 50 as a cooling source.

As shown in FIG. 2, the compressor driving unit 20 includes a gas engine 100, an exhaust gas heat exchanger 200 connected to an exhaust manifold 101 of the gas engine 10, and an exhaust gas heat exchanger 200. Is connected to the gas discharge unit 300 for discharging the exhaust gas, the gas supply unit 400 for supplying gas to the gas engine 100, and the cooling unit 500 for cooling the gas engine 100 Include.

The gas engine 100 has an output shaft connected to the drive shaft of the compressor 10 to drive the compressor 10, and the exhaust gas heat exchanger 200 recycles thermal energy of exhaust gas that is combusted and discharged from the gas engine 100. Is prepared for.

The gas supply unit 400 includes an air supply line 410 for supplying air to the gas engine 100, a gas supply line 420 for supplying gas, and a mixer 430 for mixing air and gas at a predetermined ratio. ).

In addition, the air supply line 410 is provided with an intake silencer 411 that attenuates the noise generated when inhaling air and an air cleaner 412 that cleans the sucked air.

In addition, the gas supply line 420 is connected to the gas supply source, the gas connection unit 421 receives the gas, the gas valve 422 for opening and closing the flow of gas, the regulator 423 for detecting and adjusting the flow amount of gas Etc. are provided.

The gas exhaust unit 300 is connected to the exhaust gas heat exchanger 200 and is provided in the exhaust gas pipe 310 in which the exhaust gas of the gas engine 10 is discharged, and the exhaust gas pipe 310. Collects and neutralizes an exhaust silencer 311 that attenuates noise, an exhaust trapper 312 for opening and closing an exhaust port of the exhaust gas pipe 310, and a condensate 302 generated by condensation of exhaust gas in the exhaust gas pipe 310. And a condensate pipe 330 for directing the condensate 302 generated from the exhaust gas heat exchanger 200, the exhaust silencer 311, and the exhaust trapper 312 to the drain neutralizer 320. do.

The drain neutralizer 320 neutralizes the acidic condensate 302 generated by gradually decreasing the pressure and the temperature in the process of exhausting the exhaust gas containing a large amount of water along the exhaust gas pipe 310 to discharge to the outside. do.

As shown in FIG. 3, the drain neutralizer 320 stores a neutralizer body 321 having a filter area 322 for neutralizing an acidic condensate 302 therein, and a liquid neutralizer 323. The neutralizing agent storage unit 324, the sensing unit 326 for measuring the acidity of the condensate 302 in the filter region 322, and the neutralizing agent stored in the neutralizing agent storage unit 324 when the measured acidity is less than a predetermined range ( Neutralization control unit 327 to control the 323 is discharged to the filter area 322, Damper 325 formed in the partition structure in the filter area 322 to condense even uncondensed exhaust gas, and the neutralizer main body And an inlet 328 through which the condensate 302 flows into 321, and an outlet 329 through which the neutralized condensate 302 is discharged.

The sensing unit 326 includes a pH meter, and is disposed adjacent to the discharge unit 329 to measure the acidity pH of the filter region 322. This is because when the detector 326 is disposed adjacent to the inlet 328, the condensate 302 discharged through the neutralization treatment from the drain neutralizer 320 may not be correctly neutralized.

The neutralization controller 327 may discharge the neutralizer 323 stored in the neutralizer storage unit 324 to the filter area 322 of the neutralizer main body 321 when the acidity detected by the detector 326 is less than or equal to a predetermined range. Will be adjusted. That is, the neutralization control unit 327 controls the valve 352 and the like provided in the connection line 351 connecting the neutralizer storage unit 324 and the neutralizer main body unit 321 to control the neutralizer 323 in the filter region 322. Inflow is turned on or off or the inflow is controlled.

Here, the range of acidity controlled by the neutralization control unit 327 to discharge the neutralizing agent 323 from the neutralizing agent storage unit 324 to the filter region 322 is equal to or less than pH6. That is, when the acidity of the condensate 302 detected by the detector 326 disposed adjacent to the discharge portion 329 in the filter region 322 is less than or equal to pH6, the neutralization controller 327 may remove the neutralizer from the neutralizer storage 324. The neutralizer 323 is discharged to the filter region 322.

In addition, the neutralization control unit 327 may appropriately adjust the discharge amount of the neutralizer 323 according to the strength of the acidity detected by the detection unit 326.

As the neutralizing agent 323, a liquid neutralizing agent 323 such as ammonia water is used. It is not necessarily limited to the ammonia water, and any one can neutralize the acidic condensate 302.

The cooling unit 500 includes a cooling unit 510 for cooling the cooling liquid that has cooled the gas engine 100 again, and a cooling liquid circulation tube 520 for allowing the cooling liquid to circulate the gas engine 100 and the cooling unit 510. , A cooling pump 530 for circulating the coolant in the coolant circulation tube 520, and a coolant replenishment unit 540 for replenishing the coolant in the coolant circulation tube 520.

The cooling unit 510 includes a radiator 511 for dissipating the heat of the coolant to the outside and a coolant heater 512 for transferring the heat of the coolant to the coolant.

The cooling unit 500 includes a thermo valve 521 and a three-way valve 522 for selectively controlling a path of the coolant circulating through the coolant circulation pipe 520 according to the operation mode of the air conditioner and the temperature of the coolant. It includes more.

Accordingly, as in the case of the initial operation of the gas engine 100, when the temperature of the cooling liquid is lower than the predetermined temperature, the cooling liquid is directly transferred to the gas engine 100 without passing through the cooling unit 510 by the thermo valve 521. Is headed. In addition, when the GHP type air conditioner is operated in the heating mode, the coolant cooling the gas engine 100 is supplied to the coolant heater 512 through the three-way valve 522 to transfer the heat of the coolant to the coolant. When operating in the mode, the coolant is supplied to the radiator 511 through the three-way valve 522 to release heat to the outside. Therefore, during cooling, the cooling liquid releases heat through the radiator 511 and cools the gas engine 100 again. When heating, the cooling liquid transfers heat to the refrigerant through the refrigerant heater 512, thereby heating the refrigerant. Make it possible to collect heat more efficiently for

By such a configuration, the operation and effects of the drain neutralizer 320 used in the GHP air conditioner according to the first embodiment of the present invention will be described. By using the liquid neutralizing agent 323, a solid neutralizing agent is used. In this case, no salt or condensation may occur, and the neutralizing agent 302 may be neutralized with the correct amount of neutralizing agent 323, thereby reducing the waste of the neutralizing agent 323, thereby improving neutralization efficiency in various ways. Can be. In addition, maintenance and repair of the drain neutralizer 320 is easy, and the generation of waste can be reduced, so that the GHP type air conditioner can be effectively operated.

As shown in FIG. 4, the drain neutralizer 320 used in the GHP type air conditioner according to the second embodiment of the present invention is a solid auxiliary auxiliary agent disposed in the filter region 322 adjacent to the discharge portion 329. (353) further.

By providing the auxiliary neutralizer 353, even when the neutralizing agent 323 of the liquid phase stored in the neutralizing agent storage unit 324 is exhausted, it is possible to prevent the accident that the condensate 302 is discharged without being neutralized.

As described above, according to the present invention, by using a liquid neutralizing agent, it is possible to provide a GHP air conditioner having a drain neutralizer with improved neutralization efficiency.

Claims (4)

In the GHP type air conditioner having a gas engine and a drain neutralizer for neutralizing the acid condensate generated in the exhaust gas of the gas engine, The drain neutralizer includes a neutralizer body part having a filter area for neutralizing condensate therein, an inlet for introducing condensate into the neutralizer body part, a discharge part for neutralizing and discharging the introduced condensate, and a liquid phase having a predetermined acidity. A neutralizer storage unit for storing the neutralizing agent of the neutralizing agent, a detector for measuring the acidity of the condensate in the filter area, and controlling the neutralizer stored in the neutralizing agent storage part to be discharged to the filter area when the measured acidity is less than a predetermined range. And a neutralization control unit, wherein a solid auxiliary auxiliary agent is disposed in the filter region closer to the discharge portion than a position disposed in the filter region of the sensing unit. The method of claim 1, And a range of the acidity controlled so that the neutralizer is discharged to the filter area by the neutralization controller is less than or equal to pH6. The method according to claim 1 or 2, The sensing unit is a GHP air conditioner, characterized in that disposed adjacent to the discharge. delete.

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