WO2017175348A1 - 空気調和装置 - Google Patents
空気調和装置 Download PDFInfo
- Publication number
- WO2017175348A1 WO2017175348A1 PCT/JP2016/061363 JP2016061363W WO2017175348A1 WO 2017175348 A1 WO2017175348 A1 WO 2017175348A1 JP 2016061363 W JP2016061363 W JP 2016061363W WO 2017175348 A1 WO2017175348 A1 WO 2017175348A1
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- WIPO (PCT)
- Prior art keywords
- water
- surface portion
- drain
- refrigerant pipe
- pressure refrigerant
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/30—Condensation of water from cooled air
Definitions
- the present invention relates to an air conditioner having a drain pan for storing drain water.
- the temperature of the low-pressure portion of the refrigeration cycle circuit is lower than the temperature of the surrounding air. For this reason, dew condensation is generated at the low pressure location, and drain water is generated.
- the conventional air conditioning apparatus is provided with the drain pan which stores drain water in an indoor unit etc., for example.
- the drain pan is provided with a drain port. Then, in order to discharge the drain water stored in the drain pan to the outdoors, piping work for connecting the drain pipe to the drain outlet is performed when the air conditioner is installed.
- the drain water in the drain pan can be discharged to the outside by the drain port of the drain pan and the drain pipe connected to the drain port. it can.
- the piping work for the drain pipe mentioned above may be a large-scale work depending on the location of the air conditioner. For this reason, conventionally, in order to eliminate the need for drain piping, an evaporation device that evaporates the drain water stored in the drain pan has been proposed as the drain water evaporation structure (see, for example, Patent Document 1).
- the evaporation apparatus described in Patent Document 1 has a dedicated housing. Moreover, the inside of this housing
- casing is equipped with the water absorbing sheet which absorbs drain water, and the fan which ventilates this water absorbing sheet. That is, the evaporation apparatus described in Patent Document 1 takes drain water stored in the drain pan of the air conditioner into the casing of the evaporation apparatus, absorbs the drained water with the water absorption sheet, and sends the wind to the water absorption sheet with the fan. Thus, the drain water sucked into the water absorbing sheet is evaporated.
- the evaporation apparatus described in Patent Document 1 requires a dedicated fan to evaporate the drain water. For this reason, when the evaporation apparatus described in Patent Document 1 is provided in the air conditioner, there is a problem that the cost of the air conditioner increases. In addition, when the evaporation apparatus described in Patent Document 1 is provided in an air conditioner, there is a problem that power consumption increases by the amount of the drain water evaporation fan. Moreover, the evaporation apparatus described in Patent Document 1 is configured to evaporate the drain water sucked into the water absorbing sheet by sending wind to the water absorbing sheet with a fan. For this reason, in the evaporation apparatus described in Patent Document 1, dust and dirt adhere to the evaporation surface of the water absorbent sheet, which causes a troublesome cleaning.
- the present invention has been made to solve the above-described problems, and in an air conditioner having a drain water evaporation structure, it suppresses an increase in cost, power consumption and installation space, and suppresses a decrease in maintainability. It aims at obtaining the air conditioning apparatus which can be performed.
- An air conditioner includes a drain pan for storing drain water, a water absorbent sheet provided on the bottom surface of the drain pan, and disposed on the side of the water absorbent sheet, and an outer shell formed of sheet metal and controlled inside.
- a control box in which equipment is housed, a high-pressure refrigerant pipe that is arranged above the water-absorbing sheet and through which a refrigerant at a high-pressure portion among refrigerants filled in the refrigeration cycle circuit flows, and a refrigerant that is arranged above the water-absorbing sheet
- an arrangement that is at least one of solenoid valve coils that drive an electromagnetic valve that adjusts the flow rate of the water, and evaporates the drain water absorbed in the water absorbent sheet by the heat of the arrangement.
- the air conditioner according to the present invention uses the heat of the above arrangement to constitute the drain water evaporation structure. Any of the above-described arrangements has a configuration that is conventionally provided in an air conditioner. For this reason, the air conditioning apparatus according to the present invention does not require a dedicated fan for evaporating the drain water. Therefore, the air conditioning apparatus according to the present invention can suppress an increase in the cost of the air conditioning apparatus. Moreover, since the air conditioning apparatus which concerns on this invention does not require the dedicated fan for evaporating drain water, it can also suppress that power consumption increases.
- the air conditioner according to the present invention evaporates the drain water using the heat of the above-described arrangement, it is possible to suppress dust and dirt from adhering to the evaporation surface of the water absorbent sheet and maintainability is improved. It can suppress that it falls.
- the air conditioning apparatus which concerns on this invention does not require a housing
- Such a relay unit is a unit used for, for example, a building multi-air conditioner.
- FIG. 1 is a perspective view showing a relay unit of an air conditioner according to an embodiment of the present invention.
- the relay unit 100 has, for example, a rectangular parallelepiped outer shell 1.
- the top surface portion of the outer shell 1 is composed of a top panel 4.
- the bottom surface portion of the outer shell 1 is constituted by a drain pan 20.
- Three of the four side portions of the outer shell 1 are constituted by side panels 3.
- One of the four side portions of the outer shell 1 is opened as a maintenance port.
- the maintenance port is covered with a control box 30 that houses a maintenance panel 2 and a control device that controls an actuator of the air conditioner.
- the configuration inside the outer shell 1 can be maintained by removing one of the maintenance panel 2 and the control box 30.
- the outer shell 1 configured in this manner is suspended and installed on the back of the ceiling or the like via a plurality of metal fittings 5 provided on the side panel 3, for example.
- a part of the configuration of the refrigeration cycle circuit housed in the outdoor unit and a part of the configuration of the refrigeration cycle circuit housed in the indoor unit are connected to, for example, the side panel 3 of the outer shell 1 of the relay unit 100. Therefore, a plurality of refrigerant pipes protrude. Specifically, a low-pressure refrigerant pipe 6 and a high-pressure refrigerant pipe 7 connected to the outdoor unit protrude from the outer shell 1 of the relay unit 100. A plurality of refrigerant pipes 8 connected to the indoor unit protrude from the outer shell 1 of the relay unit 100.
- the low-pressure refrigerant pipe 6 is a pipe through which a refrigerant at a low-pressure portion of the refrigerant filled in the refrigeration cycle circuit flows. That is, the low-pressure refrigerant pipe 6 is a pipe through which a refrigerant having a temperature lower than that of the surrounding air flows.
- the high-pressure refrigerant pipe 7 is a pipe through which a refrigerant at a high-pressure portion of the refrigerant filled in the refrigeration cycle circuit flows. That is, the high-pressure refrigerant pipe 7 is a pipe through which a refrigerant having a temperature higher than that of the surrounding air flows.
- a part of the refrigerant pipe 8 is connected to the low-pressure refrigerant pipe 6 via a low-pressure refrigerant pipe 6a described later.
- the remaining part of the refrigerant pipe 8 is connected to the high-pressure refrigerant pipe 7 via a high-pressure refrigerant pipe 7a described later.
- one refrigerant pipe 8 connected to the low-pressure refrigerant pipe 6 and one refrigerant pipe 8 connected to the high-pressure refrigerant pipe 7 form one set and are connected to the same indoor unit.
- FIG. 2 is a perspective view showing the internal structure of the relay unit of the air-conditioning apparatus according to the embodiment of the present invention.
- a low-pressure refrigerant pipe 6 a that connects the low-pressure refrigerant pipe 6 and a part of the refrigerant pipe 8 is provided in the outer shell 1 of the relay unit 100.
- the low-pressure refrigerant pipe 6 a is a pipe through which the refrigerant at the low-pressure portion of the refrigerant filled in the refrigeration cycle circuit flows, similarly to the low-pressure refrigerant pipe 6. That is, the low-pressure refrigerant pipe 6a is a pipe through which a refrigerant having a temperature lower than that of the surrounding air flows.
- a high-pressure refrigerant pipe 7 a that connects the high-pressure refrigerant pipe 7 and a part of the refrigerant pipe 8 is provided in the outer shell 1 of the relay unit 100.
- the high-pressure refrigerant pipe 7 a is a pipe through which the refrigerant at the high-pressure portion of the refrigerant filled in the refrigeration cycle circuit flows, similarly to the high-pressure refrigerant pipe 7. That is, the high-pressure refrigerant pipe 7a is a pipe through which a refrigerant having a temperature higher than that of the surrounding air flows.
- an electromagnetic valve 9 for adjusting the flow rate of the refrigerant flowing through the indoor unit is provided.
- the solenoid valve 9 is connected between, for example, the low-pressure refrigerant pipe 6 and the refrigerant pipe 8.
- An electromagnetic valve coil 10 for driving the electromagnetic valve 9 is also provided in the outer shell 1 of the relay unit 100.
- the temperature of the refrigerant passing through the low-pressure refrigerant pipe 6 and the low-pressure refrigerant pipe 6a is low, for example, near 0 [° C.].
- the high-pressure refrigerant pipe 7 and the high-pressure refrigerant pipe 7a have a high temperature around 50 [° C.], for example.
- the relay unit 100 may be installed on a hot and humid ceiling. For this reason, the ambient air around the low-pressure refrigerant pipe 6 and the low-pressure refrigerant pipe 6a is cooled, and condensation is generated on the low-pressure refrigerant pipe 6 and the low-pressure refrigerant pipe 6a, and the drain water is generated. It is dripped below 6a. This drain water is stored in the drain pan 20.
- FIG. 3 is a longitudinal sectional view of the relay unit of the air-conditioning apparatus according to the embodiment of the present invention.
- FIG. 4 is a perspective view showing a drain pan of the relay unit.
- 3 is a longitudinal sectional view when the relay unit 100 is observed from the direction A in FIG.
- the drain pan 20 includes a bottom surface portion 21 and a peripheral wall 22.
- a water absorbing sheet 25 is provided on the upper surface of the bottom surface portion 21.
- the peripheral wall 22 is formed of a plurality of side walls and has a frame shape.
- the peripheral wall 22 is disposed so as to surround the bottom surface portion 21.
- the lower end portion of the peripheral wall 22 and the bottom surface portion 21 are connected by an inclined portion 23 that descends from the peripheral wall 22 toward the bottom surface portion 21.
- the bottom surface portion 21 is disposed so as to be in contact with the side wall 22 a that is a part of the peripheral wall 22. For this reason, the inclined portion 23 is provided between the side wall of the peripheral wall 22 other than the side wall 22 a and the bottom surface portion 21.
- the bottom surface portion 21 includes a first bottom surface portion 21a and a second bottom surface portion 21b arranged at a position higher than the first bottom surface portion 21a.
- the 1st bottom face part 21a and the 2nd bottom face part 21b are connected by the connection part 21c which has an inclined surface, for example.
- the water absorption sheet 25 is provided from the 1st bottom face part 21a to the 2nd bottom face part 21b. That is, the water absorbing sheet 25 is provided on the top surfaces of the first bottom surface portion 21a, the second bottom surface portion 21b, and the connection portion 21c.
- the second bottom surface portion 21b is disposed near the side wall 22a so as to be in contact with the side wall 22a, for example.
- the low-pressure refrigerant pipe 6 a that generates drain water in the outer shell 1 and the portion of the low-pressure refrigerant pipe 6 that are arranged in the outer shell 1 are arranged above the inclined portion 23 of the drain pan 20.
- the drain water dripped from the low-pressure refrigerant pipe 6a and the low-pressure refrigerant pipe 6 flows down the inclined portion 23 of the drain pan 20 and is collected on the bottom surface portion 21 of the drain pan 20 as indicated by reference numeral 200 in FIGS. .
- the drain water collected by the bottom face part 21 of the drain pan 20 is absorbed by the water absorption sheet 25, and is evaporated by transpiration.
- the bottom surface portion 21 includes the first bottom surface portion 21a and the second bottom surface portion 21b disposed at a position higher than the first bottom surface portion 21a. Yes. For this reason, the drain water that has flowed down the inclined portion 23 of the drain pan 20 is once collected in the first bottom surface portion 21a. And the drain water collected on the 1st bottom face part 21a rises to the 2nd bottom face part 21b by the capillary phenomenon of the water absorption sheet 25.
- FIG. The second bottom surface portion 21b is disposed at a position higher than the first bottom surface portion 21a.
- the water absorbent sheet 25 portion disposed on the upper surface of the first bottom surface portion 21a is submerged in the drain water, the water absorbent sheet 25 portion disposed on the upper surface of the second bottom surface portion 21b is always in the atmosphere. It is exposed and drain water can be evaporated from the portion by transpiration.
- the conventional air conditioner needs to have an evaporator having a dedicated fan for evaporating the drain water as the drain water evaporation structure.
- the relay unit 100 of the air-conditioning apparatus according to the present embodiment has an evaporation structure that evaporates drain water by the heat of the control box 30, the high-pressure refrigerant pipe 7 a, and the electromagnetic valve coil 10, which is an arrangement around the drain pan 20. Adopted.
- the details of the evaporation structure of the drain water according to the present embodiment will be described.
- FIG. 5 is a perspective view showing the inside of the control box in the relay unit of the air-conditioning apparatus according to the embodiment of the present invention.
- the control box 30 has, for example, a rectangular parallelepiped outer shell 31.
- the outer shell 31 is made of sheet metal.
- a control device such as a transformer 32 is accommodated in the outer shell 31.
- the sheet metal outer shell 31 also becomes hotter than the ambient air as the control device generates heat.
- the transformer 32 tends to become high temperature, and the temperature rises to around 40 [° C.].
- the outer shell 31 made of sheet metal also rises to around 40 [° C.].
- the control box 30 is attached to the side wall 22 a of the drain pan 20. That is, the control box 30 is provided on the side of the water absorbent sheet 25 and is disposed near the water absorbent sheet 25. More specifically, the control box 30 is provided on the side of the second bottom surface portion 21b, and is disposed near the water absorbent sheet 25 portion disposed on the upper surface of the second bottom surface portion 21b. For this reason, the heat of the outer shell 31 of the control box 30 can promote the evaporation of the drain water absorbed in the water absorbent sheet 25 portion disposed on the upper surface of the second bottom surface portion 21b.
- FIG. 6 is an enlarged view of a portion Q in FIG.
- the high-pressure refrigerant pipe 7 a through which the high-temperature refrigerant flows is disposed above the water absorbent sheet 25.
- the evaporation of the drain water absorbed in the water absorbing sheet 25 can be promoted by the heat of the high-temperature refrigerant flowing through the high-pressure refrigerant pipe 7 a disposed in the vicinity of the water absorbing sheet 25.
- evaporation of the drain water absorbed by the water absorbent sheet 25 can be further promoted.
- the high-pressure refrigerant pipe 7a since the high-pressure refrigerant pipe 7a according to the present embodiment is a copper pipe, the high-pressure refrigerant pipe 7a may be corroded if the high-pressure refrigerant pipe 7a is brought into contact with the water absorbing sheet 25, that is, drain water. For this reason, in this Embodiment, the heat-transfer member 41 which contacts the water absorption sheet 25, ie, drain water, is attached to the high pressure refrigerant
- the heat transfer member 41 has, for example, a pipe shape and is formed of copper. The heat transfer member 41 does not need to consider corrosion because the refrigerant or the like does not flow inside.
- the heat transfer member 41 may be formed of a metal that is more excellent in corrosion resistance to water than copper. Moreover, you may form the heat-transfer member 41 with a sheet metal. At this time, in order to increase the contact area between the sheet metal and the water absorbent sheet 25 (the area of the portion that transmits heat), the end of the sheet metal on the water absorbent sheet 25 side may be bent into an L-shaped cross section.
- the high-pressure refrigerant pipe 7a is a material that does not have to worry about corrosion, the high-pressure refrigerant pipe 7a may be brought into direct contact with the water absorbing sheet 25, that is, drain water.
- FIG. 7 is a perspective view showing the vicinity of the electromagnetic valve coil in the relay unit of the air-conditioning apparatus according to the embodiment of the present invention.
- the solenoid valve coil 10 As shown in FIGS. 3 and 7, at least a part of the solenoid valve coil 10 is disposed above the water absorbent sheet 25.
- the temperature rises to around 40 [° C.].
- the evaporation of the drain water absorbed in the water absorbing sheet 25 can be promoted by the heat of the solenoid valve coil 10 disposed in the vicinity of the water absorbing sheet 25.
- the heat-transfer member 42 which contacts the water absorption sheet 25, ie, drain water, is attached to the solenoid valve coil 10.
- the heat transfer member 42 is, for example, a steel sheet metal.
- the end of the heat transfer member 42 on the water absorbent sheet 25 side is bent into an L-shaped cross section.
- the heat transfer member 42 is not limited to steel.
- the drain water stored in the drain pan 20 can be evaporated by the heat of the control box 30, the high-pressure refrigerant pipe 7 a and the electromagnetic valve coil 10 generated during the operation of the air conditioner.
- a heater 50 is installed as shown in FIG. 8 in order to further promote the evaporation of the drain water. Also good.
- FIG. 8 is a perspective view showing the internal structure of another example of the relay unit in the air-conditioning apparatus according to the embodiment of the present invention.
- the heater 50 is, for example, a belt heater of about 25 W covered with silicon.
- the relay unit 100 when the relay unit 100 is installed in an environment where the temperature is 32 [° C.] and the humidity is 80 [%], since the air is already saturated, the drain water in the drain pan 20 does not evaporate. However, by providing the heater 50, the drain water stored in the drain pan 20 can be evaporated.
- the heater 50 is installed at a position where the heater 50 is not immersed in the drain water.
- the heater 50 is installed above the water absorbing sheet 25 part arrange
- the heater 50 is housed in a box 51 formed of sheet metal, for example, whose top is open. The box 51 is in contact with the water absorbent sheet 25 portion disposed on the upper surface of the second bottom surface portion 21b.
- the heat of the heater 50 is transmitted to the drain water absorbed by the water absorbing sheet 25 through the box 51 serving as a heat transfer member.
- the heat of the heater 50 can be easily transmitted by the drain water absorbed by the water absorbent sheet 25 while preventing the heater 50 from being submerged in the drain water.
- a sensor 52 for detecting the amount of drain water stored in the drain pan 20 may be provided in order to suppress the energization of the heater 50 more than necessary. And it is good to set it as the structure which supplies with electricity to the heater 50, when the sensor 52 detects that the drain water more than regulation amount was stored in the drain pan 20.
- FIG. the heater 50 is energized when a sufficient amount of drain water is stored to submerge the water absorbing sheet 25 portion disposed on the first bottom surface portion 21a. As a result, the heater 50 is energized only when the amount of heat generated during normal operation of the air conditioner described above is smaller than the amount of heat of condensation of the drain water, and the power consumption of the heater 50 can be minimized.
- the heater 50 when the heater 50 is energized, the temperature in the outer shell 1 of the relay unit 100 increases due to the temperature increase of the heater 50, and the pressure in the outer shell 1 increases. Since the inside of the outer shell 1 has a positive pressure, it is possible to suppress the inflow of moist air from the outside into the outer shell 1.
- the temperature T1 of the control box 30 is 40 [° C.]
- the temperature T2 of the drain water is 0 [° C.]
- the heat transfer coefficient h from the control box 30 to the drain water is 4 [W / (m 2 K)].
- the minimum temperature of the high-pressure refrigerant pipe 7a through which the high-pressure refrigerant passes is 8 [° C.]
- the temperature of the drain water is 0 [° C.]
- the thermal conductivity ⁇ of the high-pressure refrigerant pipe 7a and the heat transfer member 41 is 400 [W / mK]
- the outer diameter of the thermal member 41 is 6.35 ⁇ 10 ⁇ 3 [m].
- the steady-state temperature of the solenoid valve coil 10 is 46 [° C.]
- the temperature of the drain water is 0 [° C.]
- the thermal conductivity ⁇ of the heat transfer member 42 is 83 [W / mK]
- the solenoid valve coil 10 and the water absorbing sheet 25 Is 115 ⁇ 10 ⁇ 3 [m].
- This is equivalent to an axial fan of about 15 [W] mounted on an electronic device such as a personal computer. If it is used in place of the axial fan, it can lead to cost reduction and maintenance reduction.
- the relay unit 100 configures the drain water evaporation structure using the heat of the control box 30, the high-pressure refrigerant pipe 7 a and the solenoid valve coil 10 arranged around the drain pan 20. Yes.
- the control box 30, the high-pressure refrigerant pipe 7a, and the solenoid valve coil 10 are all configured in the relay unit 100 conventionally.
- the air conditioning apparatus provided with the relay unit 100 according to the present embodiment does not require a dedicated fan for evaporating the drain water as described in Patent Document 1. Therefore, the air conditioning apparatus provided with the relay unit 100 according to the present embodiment can suppress an increase in the cost of the air conditioning apparatus.
- the air conditioning apparatus provided with the relay unit 100 according to the present embodiment does not require a dedicated fan for evaporating the drain water, it is possible to suppress an increase in power consumption. Moreover, since the air conditioning apparatus provided with the relay unit 100 according to the present embodiment evaporates the drain water using the heat of the above arrangement, dust and dirt adhere to the evaporation surface of the water absorbent sheet 25. Striping can be suppressed, and maintenance performance can be prevented from decreasing. Moreover, since the air conditioning apparatus provided with the relay unit 100 according to the present embodiment does not require a dedicated housing like the evaporation apparatus described in Patent Document 1 as the drain water evaporation structure, the air conditioning apparatus An increase in the installation space can also be suppressed.
- drain water evaporation structure according to the present embodiment described above is a simple structure as described above, an effect that it can be produced at low cost is also obtained.
- the heater 50 is provided to evaporate the drain water even under severe conditions in which the drain water is difficult to evaporate. It is energized only when more than the amount of drain water is stored. For this reason, the air conditioning apparatus provided with the relay unit 100 according to the present embodiment is provided with the heater 50 as compared with the conventional air conditioning apparatus that always drives a dedicated fan for evaporating the drain water. Even power consumption can be reduced.
- all the heat of the control box 30, the high-pressure refrigerant pipe 7a, and the solenoid valve coil 10 is used for the evaporation of drain water.
- the heat of at least one of the control box 30, the high-pressure refrigerant pipe 7a, and the solenoid valve coil 10 may be used for evaporating the drain water. Good.
- drain water evaporation structure may be provided in the outdoor unit or the indoor unit.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
中継ユニット100は、例えば直方体の外殻1を有している。詳しくは、外殻1の天面部は、天パネル4で構成されている。外殻1の底面部は、ドレンパン20で構成されている。外殻1の4つの側面部のうちの3つは、サイドパネル3で構成されている。そして、外殻1の4つの側面部のうちの1つは、メンテナンス口として開口している。このメンテナンス口は、メンテナンス用パネル2、及び、空気調和装置のアクチューターを制御する制御機器を収納する制御箱30で覆われている。つまり、メンテナンス用パネル2及び制御箱30のうちの一方を取り外すことにより、外殻1内部の構成をメンテナンスできる構成となっている。このように構成された外殻1は、例えばサイドパネル3に設けられた複数の金具5を介して、天井裏等に吊り下げ設置される。
図2に示すように、中継ユニット100の外殻1内には、低圧冷媒配管6と冷媒配管8の一部とを接続する低圧冷媒配管6aが設けられている。この低圧冷媒配管6aは、低圧冷媒配管6と同様に、冷凍サイクル回路に充填された冷媒のうちの低圧箇所の冷媒が流れる配管である。つまり、低圧冷媒配管6aは、周囲の空気よりも低温の冷媒が流れる配管である。また、中継ユニット100の外殻1内には、高圧冷媒配管7と冷媒配管8の一部とを接続する高圧冷媒配管7aが設けられている。この高圧冷媒配管7aは、高圧冷媒配管7と同様に、冷凍サイクル回路に充填された冷媒のうちの高圧箇所の冷媒が流れる配管である。つまり、高圧冷媒配管7aは、周囲の空気よりも高温の冷媒が流れる配管である。
制御箱30は、例えば直方体の外殻31を有している。この外殻31は、板金で形成されている。そして、この外殻31の内部には、トランス32等の制御機器が収納されている。このため、制御箱30は、制御機器の発熱に伴って、板金製の外殻31も周囲空気より高温となる。特に、トランス32は、高温になりやすく、40[℃]付近まで温度が上昇する。このため、板金製の外殻31も、40[℃]付近まで上昇する。
図3及び図6に示すように、高温冷媒が流れる高圧冷媒配管7aの少なくとも一部を、吸水シート25の上方に配置している。吸水シート25の近傍に配置された高圧冷媒配管7aを流れる高温冷媒の熱により、吸水シート25に吸収されたドレン水の蒸発を促進させることができる。ここで、吸水シート25に吸収されたドレン水に高圧冷媒配管7aの熱を空気を介さずに伝えることにより、吸水シート25に吸収されたドレン水の蒸発をより促進させることができる。この際、本実施の形態に係る高圧冷媒配管7aは銅管であるため、高圧冷媒配管7aを吸水シート25つまりドレン水に接触させると、高圧冷媒配管7aの腐食が懸念される。このため、本実施の形態では、高圧冷媒配管7aに、吸水シート25つまりドレン水に接触する伝熱部材41を取り付けている。伝熱部材41は、例えば配管形状をしており、銅で形成されている。伝熱部材41は、内部に冷媒等が流れないので、腐食を考慮しなくてもよい。なお、銅よりも水に対する耐腐食性に優れた金属で伝熱部材41を形成しても勿論よい。また、伝熱部材41を板金で形成してもよい。この際、板金と吸水シート25との接触面積(熱を伝達させる部分の面積)を増大させるため、板金の吸水シート25側の端部を断面L字状に折り曲げてもよい。また、高圧冷媒配管7aの材質が腐食を懸念しなくてもよい材質の場合には、高圧冷媒配管7aを直接吸水シート25つまりドレン水に接触させてもよい。
図3及び図7に示すように、電磁弁コイル10の少なくとも一部を、吸水シート25の上方に配置している。本実施の形態に係る電磁弁コイル10は、200[V]の入力があった場合、40[℃]付近まで温度が上昇する。吸水シート25の近傍に配置された電磁弁コイル10の熱により、吸水シート25に吸収されたドレン水の蒸発を促進させることができる。ここで、吸水シート25に吸収されたドレン水に電磁弁コイル10の熱を空気を介さずに伝えることにより、吸水シート25に吸収されたドレン水の蒸発をより促進させることができる。このため、本実施の形態では、電磁弁コイル10に、吸水シート25つまりドレン水に接触する伝熱部材42を取り付けている。伝熱部材42は、例えば鋼製の板金である。伝熱部材42と吸水シート25との接触面積(熱を伝達させる部分の面積)を増大させるため、伝熱部材42の吸水シート25側の端部を断面L字状に折り曲げている。なお、伝熱部材42は、鋼製に限定されるものではない。
ヒーター50は、例えば、シリコンで覆われた25W程度のベルトヒーターである。例えば温度が32[℃]で湿度が80[%]の環境に中継ユニット100が設置された場合、空気が既に飽和状態となっているため、ドレンパン20内のドレン水の蒸発が進まない。しかしながら、ヒーター50を設けることにより、ドレンパン20に貯留されたドレン水を蒸発させることができる。
Claims (9)
- ドレン水を貯留するドレンパンと、
ドレンパンの底面部に設けられた吸水シートと、
前記吸水シートの側方に配置され、外殻が板金で形成されて内部に制御機器が収納された制御箱、前記吸水シートの上方に配置され、冷凍サイクル回路に充填された冷媒のうちの高圧箇所の冷媒が流れる高圧冷媒配管、及び、前記吸水シートの上方に配置され、冷媒の流量を調節する電磁弁を駆動する電磁弁コイルのうちの少なくとも1つである配置物と、
を備え、
前記配置物の熱で前記吸水シートに吸収されたドレン水を蒸発させる空気調和装置。 - 前記配置物として前記制御箱を備え、
前記底面部は、第1の底面部と、前記第1の底面部よりも高い位置に配置された第2の底面部とを備え、
前記吸水シートは、前記第1の底面部から前記第2の底面部にかけて設けられており、
前記制御箱は、前記第2の底面部の側方に設けられている請求項1に記載の空気調和装置。 - 前記配置物として前記制御箱を備え、
前記制御箱に収納された前記制御機器はトランスである請求項1又は請求項2に記載の空気調和装置。 - 前記配置物として銅製の前記高圧冷媒配管を備え、
該高圧冷媒配管に取り付けられ、前記吸水シートに接触する伝熱部材を備えた請求項1~請求項3のいずれか一項に記載の空気調和装置。 - 前記配置物として前記高圧冷媒配管を備え、
前記高圧冷媒配管が前記吸水シートに接触している請求項1~請求項3のいずれか一項に記載の空気調和装置。 - 前記配置物として前記電磁弁コイルを備え、
該電磁弁コイルに取り付けられ、前記吸水シートに接触する伝熱部材を備えた請求項1~請求項5のいずれか一項に記載の空気調和装置。 - 前記底面部は、第1の底面部と、前記第1の底面部よりも高い位置に配置された第2の底面部とを備え、
前記吸水シートは、前記第1の底面部から前記第2の底面部にかけて設けられており、
前記第2の底面部に設けられた前記吸水シートの上方に、ヒーターを備えた請求項1~請求項6のいずれか一項に記載の空気調和装置。 - 前記ヒーターは、板金で形成されて前記吸水シートに接する箱に収納されている請求項7に記載の空気調和装置。
- 前記ドレンパンに貯留されたドレン水の量を検出するセンサーを備え、
前記ヒーターは、前記ドレンパンに規定量以上のドレン水が貯留されたことを前記センサーで検出した際、通電される構成である請求項7又は請求項8に記載の空気調和装置。
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JPS6063719U (ja) * | 1983-10-07 | 1985-05-04 | 松下冷機株式会社 | 空気調和機 |
JPH0310129U (ja) * | 1989-06-16 | 1991-01-30 | ||
JPH07251025A (ja) * | 1994-03-11 | 1995-10-03 | Aisin Seiki Co Ltd | 除湿装置 |
JPH0861691A (ja) * | 1994-08-24 | 1996-03-08 | Sanyo Electric Co Ltd | 空気調和機 |
JP2005291571A (ja) * | 2004-03-31 | 2005-10-20 | Daikin Ind Ltd | 空気調和機 |
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JPS52101155U (ja) * | 1976-01-29 | 1977-08-01 | ||
JPS56141918U (ja) * | 1980-03-26 | 1981-10-27 | ||
JPS6063719A (ja) * | 1983-09-16 | 1985-04-12 | Ricoh Co Ltd | 磁気記録媒体 |
JPS6354917A (ja) * | 1986-08-26 | 1988-03-09 | Matsushita Electric Works Ltd | 除湿機 |
JPH0310129A (ja) * | 1989-06-08 | 1991-01-17 | Mitsubishi Electric Corp | 温度センサ装置 |
JP2002277073A (ja) * | 2001-03-14 | 2002-09-25 | Mitsubishi Heavy Ind Ltd | 冷凍装置及び陸上輸送用冷凍装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS6063719U (ja) * | 1983-10-07 | 1985-05-04 | 松下冷機株式会社 | 空気調和機 |
JPH0310129U (ja) * | 1989-06-16 | 1991-01-30 | ||
JPH07251025A (ja) * | 1994-03-11 | 1995-10-03 | Aisin Seiki Co Ltd | 除湿装置 |
JPH0861691A (ja) * | 1994-08-24 | 1996-03-08 | Sanyo Electric Co Ltd | 空気調和機 |
JP2005291571A (ja) * | 2004-03-31 | 2005-10-20 | Daikin Ind Ltd | 空気調和機 |
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