JP4566023B2 - Heat pump type cooling device, air conditioner using the heat pump type cooling device, and heat pump type heating device - Google Patents

Description

The present invention relates to a heat pump type cooling device, an air conditioner, and a heating device.
A heat pump type cooling device that cools an object to be cooled by the endothermic action of the evaporator due to refrigerant evaporation while radiating heat generated in the condenser due to refrigerant condensation to the outside air, an air conditioner using the heat pump type cooling device, and a refrigerant The present invention relates to a heat pump type heating device that heats an object to be heated by heat generated in a condenser by refrigerant condensation while collecting heat from outside air by an endothermic action of the evaporator by evaporation.

  FIG. 10 shows a conventional reheat type air conditioner using an air-cooled separate type packaged air conditioner. The air-cooled separate type packaged air conditioner 1 in this air conditioner is used as a heat pump type cooling device for circulating refrigerant in a refrigeration circuit H (heat pump circuit). Accordingly, the object to be cooled is cooled by the endothermic action of the evaporator Ev due to refrigerant evaporation while radiating the heat generated in the condenser Cn due to refrigerant condensation to the outside air O, and the adjustment target air A is used as the object to be cooled. In this regard, the evaporator Ev as a cooler for the adjustment target air A is provided in the indoor unit 4, and the outdoor unit 5 separate from the indoor unit 4 is provided with a condenser Cn as a radiator for the ventilated outside air O. It has a configuration.

  In this air conditioner, in order to adjust the temperature and humidity of the air-conditioning target room 3, the return air returning from the air-conditioning target room 3 (or the mixed air of the return air and the outside air for ventilation) is adjusted. The air A to be adjusted is cooled and dehumidified by cooling with the evaporator Ev (cooler) in the indoor unit 4 of the air-cooled separate type packaged air conditioner 1 and reheated by the reheater 2 following the cooling and dehumidification. (Heating), and the air A to be adjusted after the reheating is supplied to the air conditioning target chamber 3 as air conditioning air.

  In the cooling and dehumidification in the evaporator Ev, the cooling output (that is, the endothermic output) of the evaporator Ev is adjusted by adjusting the circulation flow rate of the refrigerant R to adjust the temperature (dew point temperature) of the adjustment target air A. Thus, the humidity of the air A to be adjusted is adjusted, the humidity of the air-conditioning target room 3 is adjusted to the target value by this humidity adjustment, and the reheat output of the reheater 2 is reheated in the reheater 2. Temperature / humidity control of a so-called dew point control method is performed in which the temperature of the adjustment target air A after cooling and dehumidification is readjusted by adjustment, and the temperature of the air-conditioning target chamber 3 is adjusted to the target value by readjustment of this temperature.

  However, in the conventional reheat type air conditioner, the heat generated in the condenser Cn in the air-cooled separate type packaged air conditioner 1 is simply dissipated to the fresh ventilation outside air O by the ventilation fan 7 in the outdoor unit 5. The operating state of the refrigeration circuit H (for example, the temperature and pressure of the refrigerant R) in the air-cooled separate type packaged air conditioner 1 changes spontaneously due to the temperature change of O, and the refrigeration occurs due to the change in operating state due to the temperature change of the outside air O Various maintenance mechanisms in the circuit H (for example, a mechanism that automatically stops operation when the refrigerant pressure abnormally increases or decreases) may operate.

  In addition, the temperature of the outside air O as described above is adjusted despite the adjustment of the cooling output by adjusting the refrigerant circulation flow rate and the adjustment of the reheat output by adjusting the humidity and temperature of the adjustment target air A in the temperature and humidity control described above. Due to the change in the operating state due to the change and the operation of the maintenance mechanism, the end temperature (dew point temperature) and the end humidity of the air A to be adjusted in the cooling and dehumidification in the evaporator Ev change, and accordingly, the reheater The temperature at which the air A to be adjusted reaches in the reheating at 2 also changes, and therefore, there is a problem that the temperature and humidity of the air-conditioning target room 3 exceed the allowable range and deviate from the target values.

  In view of this situation, the main problem of the present invention is that the above-mentioned heat pump type cooling device, air conditioner using the same, or heat pump type heating device is streamlined in the usage form of the outside air used as a heat radiation source or a heat collection source. Thus, it is possible to effectively prevent inconveniences in temperature adjustment and humidity adjustment caused by the temperature change of the outside air.

[1] A first characteristic configuration of the present invention relates to a heat pump type cooling device,
To constitute a heat pump type cooling device that cools the object to be cooled by the endothermic action of the evaporator due to refrigerant evaporation, while radiating the heat generated in the condenser due to refrigerant condensation to the outside air,
While providing a merging air introduction means for merging a part of the used outside air that has received the heat radiation and raised the temperature with respect to fresh outside air to be introduced as the target of the heat radiation,
Based on the detected value of the adjusted value, the temperature of the combined outside air by the combined air guiding means, the temperature or pressure of the refrigerant, or the temperature of the used outside air is set as an adjustment value. By adjusting the combined flow rate ratio between fresh outside air and used outside air, a merge control means is provided to adjust the adjusted value to the set target value .
Further, a separate type apparatus configuration in which the evaporator as a cooler for an object to be cooled is installed in an indoor unit, and the outdoor unit separate from the indoor unit is equipped with the condenser as a radiator for ventilated outside air. In
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In the state where the outdoor unit is covered with the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the condenser and a discharge chamber portion that guides the used outside air that has passed through the condenser,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. The configuration is such that the ratio of the introduced air volume to the used outside air is adjusted .

  In other words, in this first characteristic configuration, a part of the used outside air that has received the heat release and has been heated is joined to the fresh outside air to be introduced as a heat release target (that is, the outside air that has not yet received the heat release). The combined outside air is used as an actual heat release target, and the heat generated in the condenser (that is, cooling exhaust heat) is radiated to the combined outside air.

  And the temperature of the merged outside air as the heat release target, the temperature or pressure of the refrigerant indicating the operation state of the refrigeration circuit (especially condensation temperature, condensation pressure, evaporation temperature, evaporation pressure, etc.), or the used heat release result One of the outside air temperatures is used as an adjustment value, and the combined outside air that is the actual heat release target is adjusted by adjusting the combined flow rate ratio between the fresh outside air and the used outside air in the combined outside air based on the detected value of the adjustment value. The adjustment value is adjusted to the set target value in an adjustment form for adjusting the temperature of the liquid crystal.

  That is, by adjusting the adjustment value to the set target value in this way, the refrigeration circuit is configured to suppress the temperature change of the combined outside air that is the actual heat release target even with respect to the temperature change of the outside air (fresh outside air). Can be maintained in an appropriate predetermined operating state, and a gradual change in the operating state of the refrigeration circuit due to the temperature change of the outside air such as the air-cooled separate type packaged air conditioner in the conventional reheat type air conditioner described above, It is possible to effectively suppress the operation of various maintenance mechanisms due to changes in the operating state, and this makes it possible to achieve the end-of-cooling temperature of the object to be cooled (when the gas is cooled and dehumidified by the cooling) In this respect, it is possible to effectively prevent changes in the temperature due to the temperature change of the outside air. Can be made more excellent heat-pump type cooling apparatus are.

  Incidentally, in order to suppress the change in the operation state of the refrigeration circuit due to the temperature change of the outside air in the heat pump type cooling device, as shown in FIG. 9, for example, a water cooling packaged air conditioner 1 ′ is used as the heat pump type cooling device. In the reheat type air conditioner that cools and dehumidifies the adjustment target air A by the evaporator Ev as a cooler in the packaged air conditioner 1 ', the cooling water extends across the condenser Cn as the radiator and the cooling tower CT in the water-cooled packaged air conditioner 1'. A cooling water circuit J for circulating W is provided with a three-way valve device V for joining a part of the return cooling water W from the condenser Cn to the supply cooling water W from the cooling tower CT, and cooling by the three-way valve device V By adjusting the combined flow rate ratio, the supply cooling water W to the condenser Cn is kept constant regardless of the temperature change of the outside air O around the cooling tower CT. By so as to maintain a constant temperature under an amount, method is also conceivable, such to maintain the operating conditions of the refrigeration circuit H in water cooled packaged air 1 'in the proper predetermined operating condition regardless of the temperature variation of the outside air O.

  However, this alternative method requires cooling water equipment, which increases the equipment cost and requires a large installation space, and can only be applied when ancillary facilities for cooling water equipment are possible. There is a problem that cannot be applied when the cooling water facility cannot be installed due to cost, installation space, or installation conditions where water leakage trouble is strictly prohibited.

  On the other hand, in the first characteristic configuration, since the change in the refrigeration circuit operation state caused by the temperature change of the outside air (fresh outside air) is suppressed by adjusting the combined flow rate ratio between the fresh outside air and the used outside air, Water equipment can be eliminated, and it can be easily applied to equipment costs and installation space as described above, or when cooling water equipment cannot be installed due to installation conditions where water leakage problems are strictly prohibited. In this respect, a heat pump type cooling device having excellent versatility can be obtained.

  The first characteristic configuration is not limited to the variable output heat pump type cooling device that enables adjustment of the evaporator heat absorption output by adjusting the refrigerant circulation flow rate (that is, adjustment of the cooling output for the object to be cooled). It can also be applied to a heat pump type cooling device with a constant flow rate.

  When the first feature configuration is applied to the variable output heat pump type cooling device that enables adjustment of the evaporator heat absorption output by adjusting the refrigerant circulation flow rate, the heat absorption output of the evaporator is changed by adjusting the refrigerant circulation flow rate. In this case, since the temperature and pressure of the refrigerant and the temperature of the used outside air tend to change, it is desirable to adopt the temperature of the combined outside air as the adjustment value.

  In the implementation of the first characteristic configuration, the object to be cooled may be gas, liquid, or solid, and cooling by the endothermic action of the evaporator may be performed by simply lowering the temperature of the object to be cooled, cooling and dehumidifying the gas, or Any purpose such as cold insulation may be used.

  The implementation of the first characteristic configuration is not limited to a device configuration in which the evaporator is used as a cooler for an object to be cooled and heat is directly exchanged between the refrigerant and the object to be cooled by the evaporator, and an intermediate heat medium between the evaporator and the evaporator. A cooler that circulates water (for example, water) may be provided, and an apparatus configuration that cools the object to be cooled in the cooler may be employed in a form in which heat is exchanged between the refrigerant and the object to be cooled via the intermediate heat medium.

  In addition, the condenser is not limited to a device configuration in which heat is exchanged directly between the refrigerant and the combined outside air by using the condenser as a radiator for the combined outside air. In some cases, an intermediate heat medium (for example, water) is exchanged with the condenser. An apparatus configuration may be employed in which a radiator to be circulated is provided, and heat generated between the condenser and the combined outside air is radiated in the radiator in a form in which heat is exchanged between the refrigerant and the combined outside air via the intermediate heat medium.

In the first feature configuration,
In the separate type apparatus configuration in which the evaporator as a cooler for the object to be cooled is installed in an indoor unit, and the outdoor unit separate from the indoor unit is equipped with the condenser as a radiator for ventilated outside air.
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In the state where the outdoor unit is covered with the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the condenser and a discharge chamber portion that guides the used outside air that has passed through the condenser,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. Since the configuration is such that the ratio of the introduced air volume with the used outside air is adjusted , the following advantages can also be obtained.

That is, in the case adopting configuration in the first characteristic configuration, fresh outdoor air is introduced from the outside of the case into the introduction chamber through the outside air intake passage and the discharge chamber through the outside air return passage in a state where the outdoor unit is covered by the case. By introducing a part of the used outside air from the inlet into the introduction chamber, the fresh outside air and the used outside air are merged, and this combined outside air is ventilated from the introduction chamber to the condenser as a radiator in the outdoor unit. By doing so, the heat generated in the condenser is radiated to the combined outside air.

  In addition, a part of the used outside air that has passed through the condenser and reached the discharge chamber (that is, the used combined outside air) is guided to the introduction chamber through the outside air recirculation path as described above, whereas The other part is discharged outside the case through the outside air discharge path, and the heat generated in the condenser is discarded outside the case by discharging the used outside air through the outside air discharge path.

Then, in that the air guide outside air in this manner, by adjusting the introduced air volume ratio of the introduction chamber of the used external air from the fresh outside air and the outside air return path from the outdoor air entrance road, in case Nagaregaiki The combined flow rate ratio between the fresh outside air and the used outside air is adjusted, and the adjustment value described above is adjusted to the set target value by adjusting the introduction air volume ratio.

That is, according to this case adopting configuration , the above-described merging air guiding means for merging a part of used outside air that has received heat radiation with respect to fresh outside air to be introduced as a heat radiating target is provided with the above-mentioned case for the outdoor unit. Even if the outdoor unit itself needs to be remodeled without any remodeling, it can be easily configured with only minor remodeling, which facilitates the manufacture of the device and reduces the cost of the device. Can be.

In the implementation of the above case adopting configuration , it is possible to adopt a configuration in which the outside air intake path and the outside air discharge path are formed only by forming the opening to the outer wall portion of the case, or the outside air return path is formed only by forming the opening to the case partition. Thus, the device configuration can be further simplified.

  In addition, in the state where the outdoor unit is covered with the case, an open type case structure in which a part of the outdoor unit is opened to the outside of the case and adopting a configuration in which the open part is an outside air intake path or an outside air discharge path, The apparatus configuration can be further simplified.

[2] A second characteristic configuration of the present invention relates to an air conditioner using the heat pump type cooling device according to the first characteristic configuration .
A configuration in which the adjustment target air is cooled by the endothermic action of the evaporator to cool and dehumidify the adjustment target air as the cooling target, and the adjustment target air is reheated by the reheater following the cooling and dehumidification. West,
The humidity of the adjustment target air is adjusted by adjusting the heat absorption output of the evaporator by adjusting the circulation flow rate of the refrigerant circulated between the condenser and the evaporator, and the reheat output of the reheater is adjusted. A temperature / humidity control means for adjusting the temperature of the adjustment target air by adjusting the temperature is provided.

That is, in the air conditioner having the second characteristic configuration, the cooling dehumidification due to the endothermic action of the evaporator is adjusted by adjusting the endothermic output of the evaporator (that is, the cooling output for the air to be adjusted) by adjusting the circulation flow rate of the refrigerant. The temperature of the adjustment target air (dew point temperature) is adjusted in step (b), and the humidity of the adjustment target air is adjusted in the cooling and dehumidification by this temperature adjustment. Further, by adjusting the reheat output of the reheater, the temperature of the adjustment target air after the cooling and dehumidification is readjusted in the reheating following the cooling and dehumidification.

That is, the humidity and temperature of the air to be adjusted are adjusted by a so-called dew point control method. However, according to the air conditioner having the second characteristic configuration , the heat pump type cooling device having the first characteristic configuration is used. Regardless of the change, the operation state of the refrigeration circuit can be maintained at an appropriate predetermined operation state, and in the cooling and dehumidification due to the heat absorption action of the evaporator, the end temperature (dew point temperature) and the end humidity of the adjustment target air are outside air. It is possible to effectively prevent a change due to a temperature change, and it is possible to stabilize the temperature at which the air to be adjusted reaches in the reheating following the cooling and dehumidification, In terms of installation, it can be easily applied even when a cooling water facility cannot be attached. This makes it possible to adjust the air humidity and temperature by the dew point control method. It is possible to secure high fine stability, also can be an excellent air conditioning system in versatility.

In particular, when the temperature and humidity of the air-conditioning target room are adjusted to the target values by adjusting the temperature and humidity of the air-conditioning target room as described above by the air conditioner having the second characteristic configuration , The adjustment accuracy and stability of the indoor humidity adjustment can also be effectively increased, and in this respect, an air conditioner suitable for air conditioning of a constant temperature room or a constant temperature room can be obtained.

[3] The third characteristic configuration of the present invention relates to a heat pump type heating device,
To configure a heat pump type heating device that heats an object to be heated by heat generated in a condenser due to refrigerant condensation while collecting heat from the outside air by the endothermic action of the evaporator due to refrigerant evaporation,
While providing a merging air guiding means for merging a part of the used outside air that has been cooled and received by the fresh outside air to be introduced as a target of the heat collection,
Based on the detected value of the adjusted value, the temperature of the combined outside air by the combined air guiding means, the temperature or pressure of the refrigerant, or the temperature of the used outside air is set as an adjustment value. By adjusting the combined flow rate ratio between fresh outside air and used outside air, a merge control means is provided to adjust the adjusted value to the set target value .
Furthermore, a separate type apparatus is provided in which an indoor unit is equipped with the condenser as a heater for an object to be heated, and an outdoor unit separate from the indoor unit is equipped with the evaporator as a heat collector for ventilated outside air. In configuration,
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In a state where the outdoor unit is covered by the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the evaporator and a discharge chamber portion that guides the used outside air that has passed through the evaporator,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. The configuration is such that the ratio of the introduced air volume to the used outside air is adjusted .

That is, in this third characteristic configuration , a part of the used outside air that has been cooled by receiving the heat is joined to fresh outside air to be introduced as a heat collection target (that is, outside air that has not yet received the heat). Thus, the combined outside air is used as an actual heat collection target, and heat collection by the endothermic action of the evaporator is performed from the combined outside air.

  And the temperature or pressure of the refrigerant | coolant which shows the operating state of the refrigerating circuit (particularly evaporating temperature, evaporating pressure, condensing temperature, condensing pressure, etc.) or the heat collecting result is shown. By adjusting one of the temperatures of the used outside air as an adjustment value and adjusting the combined flow rate ratio between the fresh outside air and the used outside air in the combined outside air based on the detected value of the adjustment value, The adjustment value is adjusted to the set target value in an adjustment form for adjusting the temperature of a certain merged outside air.

  That is, by adjusting the adjustment value to the set target value in this manner, the temperature change of the merging outside air that is the actual heat collection target is suppressed even with respect to the temperature change of the outside air (fresh outside air). Although the circuit operation state can be maintained in a proper predetermined operation state, there is a difference between the heating device and the cooling device, but the temperature of the outside air such as the air-cooled separate type package air conditioner in the conventional reheat type air conditioner described above. As a result, it is possible to effectively suppress the behavioral change of the refrigeration circuit operation state due to the change and the operation of various maintenance mechanisms due to the change of the operation state. It is possible to effectively prevent the arrival temperature from changing due to a change in the temperature of the outside air. In this respect, the heat pump heating device is further improved in terms of temperature adjustment. Door can be.

In addition, since the third characteristic configuration suppresses a change in the refrigeration circuit operation state caused by a temperature change of the outside air (fresh outside air) by adjusting a combined flow rate ratio between the fresh outside air and the used outside air, Compared with water heat source type heat pump type heating equipment that uses natural water such as well water and spring water as a heat source, it can eliminate the need for water supply equipment for heat collection, in terms of equipment cost and installation space, or It can also be advantageous in terms of avoiding a water leakage problem, and in this respect, a heat pump type heating device having excellent versatility can be obtained.

Note that the third characteristic configuration is not limited to the variable output heat pump type heating device that enables adjustment of the heat generation output of the condenser by adjusting the refrigerant circulation flow rate (that is, adjustment of the heating output for the object to be heated). The present invention can also be applied to a heat pump type heating device having a constant flow rate.

In addition, when the third feature configuration is applied to a variable output heat pump type heating device that enables adjustment of the condenser heat generation output by adjusting the refrigerant circulation flow rate, the heat generation output of the condenser is changed by adjusting the refrigerant circulation flow rate. In this case, since the temperature and pressure of the refrigerant and the temperature of the used outside air tend to change, it is desirable to adopt the temperature of the combined outside air as the adjustment value.

In the implementation of the third characteristic configuration , the object to be heated may be any of gas, liquid, and solid, and the heating by the heat generated by the condenser is any kind of heating such as simple temperature rise or heat retention of the object to be heated. It may be of interest.

The implementation of the third characteristic configuration is not limited to the device configuration in which the condenser is a heater for the heating object, and the refrigerant and the heating object are directly heat-exchanged by the condenser, but the intermediate heat medium between the condenser and the condenser. An apparatus configuration may be employed in which a heater that circulates (for example, water) is provided, and the refrigerant and the heating object are heat-exchanged via the intermediate heat medium, and the heating object is heated in the heater.

  Moreover, the evaporator is not limited to a device configuration in which heat is directly exchanged between the refrigerant and the combined outside air using the evaporator as a heat collector for the combined outside air, and depending on the case, an intermediate heat medium (for example, water) may be used between the evaporator and the evaporator. An apparatus configuration in which heat is collected from the combined outside air in the heat collecting apparatus may be adopted in a form in which a heat collector that circulates is provided and heat exchange is performed between the refrigerant and the combined outside air via the intermediate heat medium.

In the third feature configuration,
In a separate apparatus configuration in which an indoor unit is equipped with the condenser as a heater for an object to be heated, and an outdoor unit separate from the indoor unit is equipped with the evaporator as a heat collector for ventilated outside air. ,
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In a state where the outdoor unit is covered by the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the evaporator and a discharge chamber portion that guides the used outside air that has passed through the evaporator,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. Since the configuration is such that the ratio of the introduced air volume with the used outside air is adjusted , the following advantages can also be obtained.

That is, in the case adopting configuration in the third characteristic configuration, fresh outdoor air is introduced from the outside of the case through the outside air intake passage into the introduction chamber portion while the outdoor unit is covered by the case, and the discharge chamber is introduced through the outside air return passage. By introducing a portion of the used outside air from the inlet into the introduction chamber, the fresh outside air and the used outside air are merged, and this combined outside air is sent from the introduction chamber to the evaporator as a heat collector in the outdoor unit. Heat is collected from the combined outside air by ventilating.

  In addition, a part of the used outside air that has passed through the evaporator and reached the discharge chamber (that is, the used combined outside air) is guided to the introduction chamber through the outside air recirculation path as described above. The other part is discharged outside the case through the outside air discharge path.

  And in guiding the outside air in this way, the ratio of the amount of air introduced into the introduction chamber between the fresh outside air from the outside air intake passage and the used outside air from the outside air recirculation passage is adjusted, whereby the fourth characteristic configuration As an implementation of the above, the combined flow rate ratio between fresh outside air and used outside air in the combined outside air is adjusted, and the adjustment value described above is adjusted to the set target value by adjusting the introduction air amount ratio.

That is, according to this case adopting configuration , the above-described merging and guiding means for merging a part of used outside air that has received heat with respect to fresh outside air to be introduced as a heat collecting target is provided by the equipment of the case for the outdoor unit. Even if the outdoor unit itself is not remodeled, or even if the outdoor unit itself needs to be remodeled, it can be easily constructed with only minor remodeling. Can be made cheaper.

As in the case of the first feature configuration described above, in the implementation of the case adopting configuration , the outside air intake path and the outside air discharge path are formed only by forming an opening with respect to the outer wall portion of the case, or the outside air return path is formed with respect to the case partition. By adopting a configuration in which only the opening is formed, the device configuration can be further simplified.

  In addition, in the state where the outdoor unit is covered with the case, an open type case structure in which a part of the outdoor unit is opened to the outside of the case and adopting a configuration in which the open part is an outside air intake path or an outside air discharge path, The apparatus configuration can be further simplified.

[First Embodiment]
FIG. 1 shows a constant temperature facility using a general-purpose air-cooled separate type packaged air conditioner generally used in offices, stores, houses, etc., and an air-cooled separate type packaged air conditioner 1 and a hot water heat source type, a steam heat source type or an electric heat type reheater 2. Thus, a reheat type air conditioner for the constant temperature chamber 3 for production or experiment is constituted.

  The air-cooled separate type package air conditioner 1 circulates the refrigerant R through the compressor Com, the condenser Cn, the expansion valve ex, and the evaporator Ev, thereby causing the evaporator Ev to absorb heat at a low temperature level due to refrigerant evaporation under low pressure. The evaporator Ev and the supply air are provided with a vapor compression refrigeration circuit H (heat pump circuit) that causes the condenser Cn to generate heat by refrigerant condensation under high pressure and function as a coil-type cooler for the air A to be adjusted. The fan 6 is installed in the indoor unit 4, and the outdoor unit 5, which is separate from the indoor unit 4, is equipped with a condenser Cn that functions as a coil-type radiator for the outside air O and a ventilation fan 7 for the condenser Cn. It has a configuration.

  Reference numeral 8 denotes a transition refrigerant pipe extending between the indoor unit 4 and the outdoor unit 5 as a part of the refrigerant circulation path in the refrigeration circuit H.

  9a is an indoor temperature sensor that detects the temperature t of the temperature-controlled room 3, 9b is an indoor humidity sensor that detects the humidity r of the temperature-controlled room 3, and 10 is an air-cooled separate type packaged air conditioner 1 based on the detection information of both sensors 9a and 9b. The controller 10 controls the reheater 2. Specifically, the controller 10 controls the reheat output of the reheater 2 according to the deviation Δt between the detected temperature t detected by the indoor temperature sensor 9 a and the set indoor temperature ts ( The output of the compressor Com in the air-cooled separate type air conditioner 1 (in other words, the refrigerant circulation flow rate in the refrigeration circuit H) is adjusted in accordance with the deviation Δr between the detected humidity r by the indoor humidity sensor 9b and the set indoor humidity rs. ) To adjust the cooling output as the cooler of the evaporator Ev (that is, the endothermic output of the evaporator Ev).

  That is, in this constant temperature facility, the return air returned from the constant temperature chamber 3 (or the mixed air of the return air and the outside air for ventilation) is the adjustment target air A, and the adjustment target air A is the air-cooled separate type package air conditioner 1. The cooling and dehumidification is performed by cooling in the evaporator Ev (cooler) in the indoor unit 4 of the indoor unit 4, and subsequently, the adjustment target air A that has been cooled and dehumidified is reheated (heated) in the reheater 2. The air A to be adjusted later is supplied to the temperature-controlled room 3 by a supply fan 6 through a duct as air for indoor air conditioning.

  The absolute humidity of the adjustment target air A is adjusted by adjusting the temperature (dew point temperature) of the adjustment target air A in the cooling and dehumidification in the evaporator Ev by adjusting the cooling output according to the humidity deviation Δr by the controller 10. By adjusting the humidity, the humidity r (relative humidity or absolute humidity) of the temperature-controlled room 3 is adjusted to the set indoor humidity rs. In addition, by adjusting the reheat output according to the temperature deviation Δt by the controller 10, the temperature of the adjustment target air A is readjusted in the reheat in the reheater 2, and the temperature of the temperature-controlled room 3 is adjusted by the readjustment of this temperature. The temperature t is adjusted to the set room temperature ts.

  In addition, 11a is a filter installed in parallel with the ceiling of the temperature-controlled room 3, and by supplying the air A adjusted in temperature and humidity by the air-cooled separate type packaged air conditioner 1 and the reheater 2 to the temperature-controlled room 3 through these filters 11a, Keep the cleanliness of chamber 3 high. Reference numeral 11b denotes an air-permeable porous floor, and air discharged from the room of the temperature-controlled room 3 through the porous floor 11b is returned to the air-cooled separate type package air conditioner 1 as return air (adjustment target air A).

  The outdoor unit 5 of the air-cooled separate type packaged air conditioner 1 is provided with a case 12 that covers the entire outdoor unit 5 when the outdoor unit 5 is installed, and the outdoor unit 5 is covered with the case 12 in this case 12. In this state, the inside of the case passes through the outdoor unit 5 by the ventilation by the introduction chamber 13 and the ventilation fan 7 that guides the outside air Oa to the outdoor unit 5 (specifically, the outside air to the condenser Cn as a radiator). A partition 15 is provided for partitioning the used outside air Ob (that is, the used outside air whose temperature has been raised by passing through the condenser Cn as a radiator and receiving heat released from the condenser) to the exhaust chamber 14. It is.

  In addition, the case 12 includes an outside air intake passage 16 that allows the introduction chamber portion 13 to communicate with the outside of the case, and an outside air discharge passage 17 that allows the discharge chamber portion 14 to communicate with the outside of the case. An outside air recirculation path 18 is formed by opening the partition 15 so that the introduction chamber section 13 and the discharge chamber section 14 communicate with each other in the case. The outside air intake path 16 and the outside air discharge path 17 The air volume adjusting dampers 19 and 20 are equipped, respectively, and the outside air return path 18 is equipped with an air volume adjusting motor damper 21.

  Reference numerals 22 and 23 denote a ventilation outside air temperature sensor and a merging controller equipped in the case 12, and the ventilation outside air temperature sensor 22 is a temperature ta of the passing outside air Oa in the outside air inlet 5 a of the outdoor unit 5 facing the introduction chamber 13. Is detected.

  Further, the merging controller 23 adjusts the opening degree of the air volume adjusting motor damper 21 in the outside air recirculation path 18 based on the detection information of the ventilation outside air temperature sensor 22, specifically, the outside air inlet portion of the outdoor unit 5. When the temperature ta of the passing outside air Oa detected by the ventilation outside air temperature sensor 22 is lower than the set appropriate temperature tas using the temperature ta of the passing outside air Oa (combined outside air described later) at 5a as an adjustment value, the motor damper in the outside air return path 18 On the other hand, when the temperature ta of the passing outside air Oa detected by the ventilation outside air temperature sensor 22 is higher than the set appropriate temperature tas, the opening degree of the motor damper 21 in the outside air return path 18 is decreased. Adjust to the side.

  In other words, by attaching the case 12 to the outdoor unit 5, when operating the air-cooled separate type packaged air conditioner 1, fresh outside air is supplied from outside the case through the outside air intake path 16 using the ventilation function of the ventilation fan 7 in the outdoor unit 5. O is introduced into the introduction chamber 13, and a part Ob ′ of the used outside air Ob is introduced into the introduction chamber 13 from the discharge chamber 14 through the outside air recirculation path 18 using the ventilation function of the ventilation fan 7. The introduced fresh outside air O and the used outside air Ob ′ are merged in the introduction chamber 13.

  Then, the combined outside air Oa is ventilated from the introduction chamber 13 to the condenser Cn as the radiator in the outdoor unit 5 by the ventilation fan 7, so that the combined outside air Oa is actually radiated as heat generated in the condenser Cn. Of the used outside air Ob (that is, the used joined outside air) that passes through the condenser Cn and is discharged from the outside air discharge port portion 5b of the outdoor unit 5 to the discharge chamber portion 14. While part Ob ′ is guided to the introduction chamber 13 through the outside air recirculation path 18 as described above, the other part Ob ″ of the used outside air Ob is brought out of the case through the outside air discharge path 17 using the ventilation function of the ventilation fan 7. By discharging the used outside air Ob ″ through the outside air discharge passage 17, the heat generated in the condenser Cn is discarded outside the case.

  Further, in guiding the outside air in this way, by adjusting the opening degree of the motor damper 21 by the merging controller 23, the fresh outside air O introduced from the outside air intake passage 16 into the introduction chamber portion 13 and the outside air return passage 18 are adjusted. The condenser Cn is an adjustment mode that adjusts the combined flow rate ratio between the fresh outside air O and the used outside air Ob ′ in the combined outside air Oa by adjusting the introduction air volume ratio with the used outside air Ob ′ introduced into the introduction chamber 13. The temperature ta of the combined outside air Oa that is ventilated to is adjusted to a set appropriate temperature tas (for example, 40 ° C.).

  That is, by adjusting the temperature ta of the combined outside air Oa that flows to the condenser Cn as an actual heat release target at the set appropriate temperature tas by adjusting the combined flow rate ratio, the adjustment target air A in the cooling and dehumidification in the evaporator Ev. The end-of-life temperature (dew point temperature) and end-of-humidity change due to changes in the operating state of the refrigeration circuit H due to changes in the temperature of the outside air O (fresh outside air outside the case) and the operation of various maintenance mechanisms due to changes in the operating state This also stabilizes the temperature at which the adjustment target air A arrives at the reheating in the reheater 2 following the cooling and dehumidification, thereby adjusting the humidity by cooling and dehumidification of the adjustment target air A. While using a general-purpose air-cooled separate type packaged air conditioner 1 for the temperature and humidity adjustment of the temperature-controlled room 3 by the controller 10 described above, high temperature adjustment accuracy (for example, indoor Maximum variation range of degrees t: ts-0.1 ≦ t ≦ ts + 0.1), and, to be obtained stably with high humidity adjustment accuracy.

  In short, in the first embodiment, the case 12 attached to the outdoor unit 5 and the ventilation fan 7 provided in the outdoor unit 5 dissipate heat generated in the condenser Cn due to refrigerant condensation to the outside air O. In the heat pump type cooling device 1 (air-cooled separate type package air conditioner) that cools the cooling target A (air to be adjusted) by the endothermic action of the evaporator Ev by the evaporation of the refrigerant, the outside air O to be introduced as a target for heat dissipation is subjected to heat dissipation. Thus, a merging air guiding means for merging a part Ob ′ of the used outside air Ob whose temperature has been increased is configured.

  Further, the air volume adjusting dampers 19 to 21, the ventilation outside air temperature sensor 22, and the merging controller 23 use the temperature ta of the merging outside air Oa by the merging air guiding means as an adjustment value, and set the detected value of the adjustment value ta. Based on this, by adjusting the combined flow rate ratio between the fresh outside air O and the used outside air Ob ′ in the joined outside air Oa, a joining control means for adjusting the adjustment value ta to the set target value tas (setting appropriate value) is configured.

  And the air conditioner for the temperature-controlled room 3 cools and dehumidifies the adjustment target air A by cooling the adjustment target air A as an object to be cooled by the endothermic action of the evaporator Ev. The adjustment target air A is reheated by the reheater 2, and the indoor temperature sensor 9a, the indoor humidity sensor 9b, and the controller 10 adjust the circulation flow rate of the refrigerant R to adjust the heat absorption of the evaporator Ev. Temperature / humidity control means for adjusting the humidity of the adjustment target air A by adjusting the output and adjusting the temperature of the adjustment target air A by adjusting the reheat output of the reheater 2 is configured.

  The air volume adjusting dampers 19 and 20 provided in the outside air intake path 16 and the outside air discharge path 17 are respectively provided with fresh outside air O introduced from the outside of the case through the outside air intake path 16 and outside the case through the outside air discharge path 17. This is a damper for initially setting the three air volume ratios of the used outside air O ″ to be discharged and the used outside air O ′ led from the discharge chamber portion 14 to the introduction chamber portion 13 through the outside air recirculation path 18 in a rough adjustment manner. .

  In the above example, the controller 10 adjusts the reheat output of the reheater 2 based on the temperature t of the temperature-controlled room 3 (air-conditioning target room) detected by the indoor temperature sensor 9 a, so that the temperature of the temperature-controlled room 3 is adjusted. By adjusting t to the set room temperature ts and adjusting the cooling output of the evaporator Ev by adjusting the refrigerant circulation flow rate by the controller 10 based on the humidity r of the temperature-controlled room 3 detected by the indoor humidity sensor 9b, Although the example of adjusting the humidity r of the temperature-controlled room 3 to the set room humidity rs has been shown, instead of this, the temperature of the adjustment target air A reheated by the reheater 2 (that is, the adjustment target air A by the reheating) The controller 10 adjusts the reheat output of the reheater 2 based on the detected value of the final temperature), thereby adjusting the temperature of the adjustment target air A supplied to the temperature-controlled room 3 as air-conditioning air to the set target temperature. At the same time, cooling is reduced by the evaporator Ev The detected value of the temperature or humidity of the adjusted air A (that is, the end temperature or the end humidity of the adjusted air A in the cooling and dehumidification) or the humidity of the adjusted air A reheated by the reheater 2 Based on the detected value, the controller 10 adjusts the refrigerant circulation flow rate to adjust the cooling output of the evaporator Ev, thereby adjusting the humidity of the adjustment target air A supplied to the temperature-controlled room 3 as air-conditioning air to the set target humidity. You may make it take a temperature / humidity adjustment form.

[Second Embodiment]
FIG. 2 shows a heating facility using a general-purpose air-cooled separate type packaged air conditioner. In this heating facility, as a difference from the constant temperature facility shown in the first embodiment, a condenser Cn is a coil type for the adjustment target air A. The heater E is installed in the indoor unit 4 in the air-cooled separate type packaged air conditioner 1, and the evaporator Ev is installed in the outdoor unit 5 in the air-cooled separate type packaged air conditioner 1 together with the ventilation fan 7 as a coil type heat collector for the outside air O. .

  Moreover, it replaces with the reheater 2 equipped with the thermostat of 1st Embodiment, and arrange | positions the humidifier 24 which humidifies the adjustment object air A in the downstream of the air flow direction rather than the condenser Cn as a heater. It is installed in the indoor unit 4 in the air-cooled separate type package air conditioner 1.

  Further, the controller 10 outputs the output of the compressor Com in the air-cooled separate type packaged air conditioner 1 according to the deviation Δt between the temperature t of the heating target room 3 detected by the room temperature sensor 9a and the set room temperature ts (in other words, The heating target as the heater of the condenser Cn (that is, the heat generation output of the condenser Cn) is adjusted by adjusting the circulation flow rate of the refrigerant R in the refrigeration circuit H, and the heating target detected by the indoor humidity sensor 9b The humidification output of the humidifier 24 is adjusted according to the deviation Δr between the humidity r of the chamber 3 and the set indoor humidity rs.

  That is, in this heating facility, the return air returned from the heating target room 3 (or the mixed air of the return air and the outside air for ventilation) is the adjustment target air A, and the adjustment target air A is an air-cooled separate type package air conditioner. 1 is heated by the condenser Cn (heater) in the indoor unit 4, and subsequently, the heated adjustment target air A is humidified in the humidifier 24, and the humidified adjustment target air A is used as air for indoor air conditioning. Then, the air is supplied to the room 3 to be heated by the air supply fan 6 through the duct.

  Then, by adjusting the heating output according to the temperature deviation Δt by the controller 10, the temperature of the adjustment target air A is adjusted in the heating by the condenser Cn, and the temperature t of the heating target chamber 3 is set by this temperature adjustment. Adjust to temperature ts. Further, by adjusting the humidification output according to the humidity deviation Δr by the controller 10, the humidity of the adjustment target air A is adjusted in the humidification by the humidifier 24, and the humidity r of the heating target room 3 is set by this humidity adjustment. Adjust to humidity rs.

  The outdoor unit 5 of the air-cooled separate type packaged air conditioner 1 is equipped with a case 12 similar to that shown in the first embodiment for covering it, and the junction controller 23 equipped in this case 12 is the first implementation. Contrary to the case of the embodiment, when the temperature ta of the passing outside air Oa detected by the ventilation outside air temperature sensor 22 (that is, the passing merging outside air in the outside air inlet 5a of the outdoor unit 5) is lower than the set appropriate temperature tas, When the opening degree of the motor damper 21 in the outside air recirculation path 18 is adjusted to the decreasing side, and the temperature ta of the passing outside air Oa detected by the ventilation outside air temperature sensor 22 is higher than the set appropriate temperature tas, the motor damper in the outside air recirculation path 18 The opening degree of 21 is adjusted to the increase side.

  That is, in this heating facility, the fresh outside air O to be heat-collected introduced from the outside of the case into the introduction chamber portion 13 through the outside air intake path 16 using the ventilation function of the ventilation fan 7 in the outdoor unit 5, Used outside air Ob introduced into the introduction chamber portion 13 from the discharge chamber portion 14 through the outside air recirculation path 18 using the air blowing function (that is, passes through the evaporator Ev as a heat collector and receives heat collection by the evaporator endothermic action). Then, a portion Ob ′ of the used outside air that has been cooled down is joined in the introduction chamber 13.

  Then, the combined outside air Oa is ventilated from the introduction chamber 13 to the evaporator Ev as the heat collector in the outdoor unit 5 by the ventilation fan 7, so that the combined outside air Oa is the heat absorption target of the evaporator Ev. Heat is collected from the combined outside air Oa by the action, and on the other hand, the used outside air Ob (that is, the used combined outside air) that passes through the evaporator Ev and is discharged from the outside air discharge port portion 5b of the outdoor unit 5 to the discharge chamber portion 14 is collected. While part Ob ′ is guided to the introduction chamber 13 through the outside air recirculation path 18 as described above, the other part Ob ″ of the used outside air Ob is brought out of the case through the outside air discharge path 17 using the ventilation function of the ventilation fan 7. Discharge.

  Further, in guiding the outside air in this way, by adjusting the opening degree of the motor damper 21 by the merging controller 23, the fresh outside air O introduced from the outside air intake passage 16 into the introduction chamber portion 13 and the outside air return passage 18 are adjusted. The evaporator Ev is adjusted in such a manner that the combined flow rate ratio between the fresh outside air O and the used outside air Ob ′ in the combined outside air Oa is adjusted by adjusting the introduction air volume ratio with the used outside air Ob ′ introduced into the introduction chamber 13. The temperature ta of the combined outside air Oa that is ventilated to is adjusted to the set appropriate temperature tas.

  That is, the temperature ta of the combined outside air Oa that flows to the evaporator Ev as the actual heat collection target is maintained at the set appropriate temperature tas by adjusting the combined flow rate ratio, so that the adjustment target air A is reached in the heating in the condenser Cn. The temperature is prevented from changing due to changes in the operating state of the refrigeration circuit H due to temperature changes of the outside air O (fresh outside air outside the case) and the operation of various maintenance mechanisms due to changes in the operating state, While using the general-purpose air-cooled separate packaged air conditioner 1 for temperature adjustment by heating the adjustment target air A, high temperature adjustment accuracy can be stably obtained in the temperature adjustment of the heating target room 3 by the controller 10 described above. .

  In short, in the second embodiment, the case 12 attached to the outdoor unit 5 and the ventilation fan 7 provided in the outdoor unit 5 collect the refrigerant from the outside air O by the heat absorption action of the evaporator Ev due to refrigerant evaporation. In the heat pump type heating device 1 (air-cooled separate type package air conditioner) that heats the heating object A (adjustment target air) by the heat generated in the condenser Cn due to condensation, heat is collected from fresh outside air O introduced as a target of heat collection. In this way, a merging wind guiding means for merging a part Ob ′ of the used outside air Ob that has been cooled down is configured.

  Further, the air volume adjusting dampers 19 to 21, the ventilation outside air temperature sensor 22, and the merging controller 23 use the temperature ta of the merging outside air Oa by the merging air guiding means as an adjustment value, and set the detected value of the adjustment value ta. Based on this, by adjusting the combined flow rate ratio between the fresh outside air O and the used outside air Ob ′ in the joined outside air Oa, a joining control means for adjusting the adjustment value ta to the set target value tas (setting appropriate value) is configured.

  As in the first embodiment, the air volume adjusting dampers 19 and 20 provided in the outside air intake path 16 and the outside air discharge path 17 respectively include fresh outside air O introduced from the outside of the case through the outside air intake path 16 and outside air. The three air volume ratios of the used outside air Ob ″ discharged outside the case through the discharge passage 17 and the used outside air Ob ′ led from the discharge chamber portion 14 to the introduction chamber portion 13 through the outside air recirculation passage 18 are roughly adjusted in an initial stage. This is a damper for setting.

  In the above example, the controller 10 adjusts the refrigerant circulation flow rate based on the temperature t of the heating target chamber 3 (air conditioning target chamber) detected by the indoor temperature sensor 9a to adjust the heating output of the condenser Cn. By adjusting the temperature t of the heating target chamber 3 to the set indoor temperature ts and adjusting the humidification output of the humidifier 24 by the controller 10 based on the humidity r of the heating target chamber 3 detected by the indoor humidity sensor 9b. Although the example of adjusting the humidity r of the heating target room 3 to the set room humidity rs has been shown, instead of this, the humidity of the adjustment target air A humidified by the humidifier 24 (that is, the adjustment target air A in the humidification) By adjusting the humidification output of the humidifier 24 by the controller 10 based on the detected value of the “arrival humidity”, the humidity of the adjustment target air A supplied to the heating target chamber 3 as air conditioning air is adjusted to the set target humidity. In addition, the detection value of the temperature of the adjustment target air A heated by the condenser Cn (that is, the temperature at which the adjustment target air A arrives at the heating) or the temperature of the adjustment target air A humidified by the humidifier 24 is detected. The temperature of the adjustment target air A supplied to the heating target chamber 3 as air conditioning air is adjusted to the set target temperature by adjusting the refrigerant circulation flow rate by the controller 10 based on the value and adjusting the heating output of the condenser Cn. You may make it take a temperature / humidity adjustment form.

[Another embodiment]
Next, other embodiments of the present invention will be listed.
In the merging of the fresh outside air O and a part of the used outside air Ob ′ by the merging air guiding means, the mixing facilitating means M (for example, FIG. 5) promotes the mixing of the fresh outside air O and the used outside air Ob ′ by stirring or the like. 1 or 1), and the temperature distribution of the combined outside air Oa in the radiator or the heat collector is made uniform by promoting the mixing, thereby maintaining the operation state of the refrigeration circuit H in a predetermined operation state. The function may be further enhanced.

  As shown in FIG. 3, in the case 12 surrounding the outdoor unit 5, an auxiliary fan 25 for taking in the outside air for ensuring a large amount of fresh air O introduced into the introduction chamber 13 through the outside air intake passage 16 is taken in outside air. The passage 16 may be additionally equipped so that a large amount of ventilation of the combined outside air Oa with respect to the condenser Cn as a radiator in the outdoor unit 5 and the evaporator Ev as a heat collector can be secured.

  When the auxiliary fan 25 is provided, the temperature ta of the combined outside air Oa is adjusted by adjusting the opening degree of the motor damper 21 provided in the outside air recirculation path 18 by the combining controller 23 as in the first and second embodiments described above. Is adjusted to the set appropriate temperature tas, or in combination therewith, as shown in FIG. 4, the output ta of the auxiliary fan 25 is adjusted by the merge controller 23 with inverter control or the like, so that the temperature ta of the merged outside air Oa May be adjusted to the set appropriate temperature tas.

  Instead of adjusting the temperature ta of the merging outside air Oa to the set appropriate temperature tas by adjusting the opening degree of the motor damper 21 provided in the outside air recirculation path 18 by the merging controller 23 as in the first and second embodiments described above. Alternatively, in combination with this, as shown in FIG. 5, the outside air intake path 16 in the case 12 is equipped with a motor damper 26 for adjusting the air volume, and the opening degree of the motor damper 26 installed in the outside air intake path 16 is controlled to be merged. The temperature ta of the merging outside air Oa may be adjusted to the set appropriate temperature tas by adjusting with the vessel 23.

  Further, the opening degree of the motor damper 21 provided in the outside air recirculation path 18 is adjusted by the merging controller 23 to adjust the temperature ta of the merging outside air Oa to the set appropriate temperature tas, or in combination therewith, As shown in FIG. 6, a plurality of outside air intake fans 27 arranged in parallel to introduce fresh outside air O into the introduction chamber section 13 are provided, and the number of operating outside air intake fans 27 is changed by the junction controller 23 to join. The temperature ta of the outside air Oa may be adjusted to the set appropriate temperature tas.

  As shown in FIG. 7, a merger 28 that joins an outside air intake path 16 that guides fresh outside air O from the outside of the case and an outside air return path 18 that guides a portion Ob ′ of the used outside air Ob from the discharge chamber 14 in the case 12. In the merging device 28, the fresh outside air O from the outside air intake passage 16 and the used outside air Ob 'from the outside air recirculation passage 18 are joined and mixed, and then the joined outside air Oa is introduced into the case 12 through the introduction passage 29. In addition, the air volume adjustment damper 19 that adjusts the air volume of fresh fresh air O introduced through the outdoor air intake passage 16 and the introduction of the used outdoor air Ob ′ through the outdoor air return path 18 are configured. An air volume adjusting damper 21 for adjusting the air volume is built in the merger 28, and the opening degree of these air volume adjusting dampers 19, 21 is adjusted contrarily by the merge controller 23. The temperature ta may be configured to adjust the setting appropriate temperature tas.

  Instead of the case structure covering the entire outdoor unit 5 as shown in the first and second embodiments, as shown in FIG. 8, the case 12 is covered with the outdoor unit 5 so that the outdoor air intake portion in the outdoor unit 5 is covered. 9a and a part of the outside air discharge port 9b are opened to the outside of the case, and these open parts are used as the outside air intake path 16 and the outside air discharge path 17 to introduce fresh outside air O from the outside of the case into the introduction chamber section 13. Alternatively, the used outside air Ob ″ may be discharged from the discharge chamber 14 to the outside of the case.

  In the case 12 shown in FIG. 8, a part of the used outside air Ob is fed from the discharge chamber portion 14 to the introduction chamber portion 13 by the reflux fan 30 interposed in the outside air circulation path 18. The opening degree of the air volume adjusting motor damper 21 interposed in the outside air recirculation path 18 is adjusted by the merging controller 23 so that the temperature ta of the merging outside air Oa is adjusted to the set appropriate temperature tas.

In the first and second embodiments described above, by covering the outdoor unit 5 of the heat pump type cooling device of the separate type with the case 12, the condenser Cn (heat radiator) and the evaporator Ev equipped in the outdoor unit 5 are used. On the other hand, the configuration is such that the combined outside air Oa is ventilated, but the following configuration is also conceivable.

In the implementation of the first characteristic configuration, a radiator that circulates an intermediate heat medium between the condenser Cn and a configuration in which the heat generated by the condenser Cn is radiated to the combined outside air Oa in the radiator is adopted . In the implementation of the three-characteristic configuration , when a heat collector that circulates the intermediate heat medium between the evaporator Ev is provided, and the heat collector uses the heat absorption action of the evaporator Ev to collect heat from the combined outside air Oa, By covering these radiators and heat collectors with the case 12 as described above, it is possible to adopt a configuration in which the combined outside air Oa is passed through the radiators and the heat collectors.

  In each of the above-described examples, the temperature ta of the combined outside air Oa is used as an adjustment value, and the combined flow rate ratio between the fresh outside air O and the used outside air Ob ′ in the combined outside air Oa is determined based on the detected value of the temperature ta of the combined outside air Oa. In this example, the temperature ta of the combined outside air O is adjusted to the set target value tas by adjusting the pressure 23, but instead, the pressure or temperature of the refrigerant R in the refrigeration circuit H or the temperature of the used outside air Ob is adjusted. As a value, the merging control means 23 adjusts the merging flow ratio between the fresh outside air O and the used outside air Ob ′ in the merging outside air Oa based on the detected value of the pressure or temperature of the refrigerant R or the detected value of the temperature of the used outside air Ob. By doing so, the pressure or temperature of the refrigerant R or the temperature of the used outside air Ob is adjusted to the set target value, and thereby the refrigeration circuit H regardless of the temperature change of the outside air O (fresh outside air). It may be kept operating at a valid predetermined operating condition.

  When the case 12 as described above is adopted as the merging air guiding means, the partition 15 that partitions the introduction chamber portion 13 and the discharge chamber portion 14, the outside air intake passage 16 that guides the fresh outside air O, and the used outside air Ob ″ are discharged. Specific structures such as the outside air discharge path 17 and the outside air recirculation path 18 that guides a part Ob ′ of the used outside air Ob to the introduction chamber 13 are not limited to the structures shown in the first and second embodiments described above. Configuration change is possible.

  The present invention can be applied not only to a vapor compression refrigeration circuit but also to a heat pump cooling device and a heat pump heating device using an absorption refrigeration circuit.

First described above, in the second embodiment, an example of using a separate type package air conditioner, a cooling apparatus or heating apparatus of a heat pump type in the practice of the first or third characterizing feature of the present invention, Pas Tsu cage Air Conditioning For example, it may be a refrigeration circuit device of another type such as an air cooling condensing unit.

  In the first embodiment described above, the temperature / humidity adjustment mode in which the air A cooled and dehumidified by the evaporator Ev in the indoor unit 4 of the air-cooled separate type packaged air conditioner 1 is reheated by the reheater 2 is shown. When cooling is performed using the heat pump type cooling device according to the first characteristic configuration, even if a method of adjusting the temperature of the air-conditioning target chamber 3 by omitting reheating and adjusting the cooling output of the evaporator Ev is adopted. Good.

  Further, when performing reheating, instead of using the hot water heat source type, the steam heat source type or the electric heating type reheater 2, for example, air cooled and dehumidified by an evaporator of one indoor unit in a multi air conditioner Various reheating methods such as a method of reheating with a condenser of the machine or a method of reheating the air after cooling and dehumidification using a hot gas coil using a compressed refrigerant as a heat source can be adopted.

  The heat pump type cooling device or heating device according to the present invention is not limited to application to an air conditioner, but can be applied to various cooling uses and heating uses including application to a freezer, a refrigerator or a warm storage.

  The heat pump type cooling apparatus according to the present invention can be applied to cooling various objects to be cooled for various purposes, and the heat pump type heating apparatus according to the present invention can be applied to heating various objects to be heated for various purposes. In addition, the air conditioner according to the present invention can be applied to adjust the temperature and humidity of air for various purposes.

Diagram showing equipment configuration of thermostatic equipment The figure which shows the equipment composition of the heating equipment The block diagram of the principal part which another embodiment shows The principal part block diagram which shows other another embodiment The principal part block diagram which shows other another embodiment The principal part block diagram which shows other another embodiment The principal part block diagram which shows other another embodiment The principal part block diagram which shows other another embodiment Device configuration diagram of air conditioner showing comparative example Device configuration diagram of an air conditioner showing a conventional example

Cn Condenser O Outside air (fresh outside air)
Ev Evaporator A Object to be cooled, Air to be adjusted, Object to be heated Ob Used outside air Ob 'Part of used outside air 12,7 Merged air introduction means Oa Merged outside air ta Temperature of merged outside air R Refrigerant tas Setting target value 19 ~ 23 Confluence control means 4 Indoor unit 5 Outdoor unit 12 Case 13 Introduction chamber part 14 Discharge chamber part 15 Partition body 16 Outside air intake path 17 Outside air discharge path 18 Outside air return path 2 Reheater 10 Temperature / humidity control means

Claims (3)

A heat pump type cooling device that cools an object to be cooled by an endothermic action of an evaporator due to refrigerant evaporation while dissipating heat generated in the condenser due to refrigerant condensation to the outside air,
While providing a merging air introduction means for merging a part of the used outside air that has received the heat radiation and raised the temperature with respect to fresh outside air to be introduced as the target of the heat radiation,
Based on the detected value of the adjusted value, the temperature of the combined outside air by the combined air guiding means, the temperature or pressure of the refrigerant, or the temperature of the used outside air is set as an adjustment value. By adjusting the combined flow rate ratio between fresh outside air and used outside air, a merge control means is provided to adjust the adjusted value to the set target value .
Further, a separate type apparatus configuration in which the evaporator as a cooler for an object to be cooled is installed in an indoor unit, and the outdoor unit separate from the indoor unit is equipped with the condenser as a radiator for ventilated outside air. In
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In the state where the outdoor unit is covered with the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the condenser and a discharge chamber portion that guides the used outside air that has passed through the condenser,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. A heat pump type cooling device configured to adjust the ratio of the introduced air volume with the used outside air . An air conditioner using the heat pump type cooling device according to claim 1,
A configuration in which the adjustment target air is cooled by the endothermic action of the evaporator to cool and dehumidify the adjustment target air as the cooling target, and the adjustment target air is reheated by the reheater following the cooling and dehumidification. West,
  The humidity of the adjustment target air is adjusted by adjusting the heat absorption output of the evaporator by adjusting the circulation flow rate of the refrigerant circulated between the condenser and the evaporator, and the reheat output of the reheater is adjusted. An air conditioner provided with temperature and humidity control means for adjusting the temperature of the air to be adjusted by adjusting. A heat pump type heating device that heats an object to be heated by heat generated in a condenser by refrigerant condensation while collecting heat from outside air by an endothermic action of the evaporator by refrigerant evaporation,
  While providing a merging air guiding means for merging a part of the used outside air that has been cooled and received by the fresh outside air to be introduced as a target of the heat collection,
  Based on the detected value of the adjusted value, the temperature of the combined outside air by the combined air guiding means, the temperature or pressure of the refrigerant, or the temperature of the used outside air is set as an adjustment value. By adjusting the combined flow rate ratio between fresh outside air and used outside air, a merge control means is provided to adjust the adjusted value to the set target value.
Furthermore, a separate type apparatus is provided in which an indoor unit is equipped with the condenser as a heater for an object to be heated, and an outdoor unit separate from the indoor unit is equipped with the evaporator as a heat collector for ventilated outside air. In configuration,
In order to constitute the merging air guiding means, a case covering the outdoor unit is provided, and in this case,
In a state where the outdoor unit is covered by the case, a partition body is provided that partitions the inside of the case into an introduction chamber portion that guides the ventilated outside air to the evaporator and a discharge chamber portion that guides the used outside air that has passed through the evaporator,
Forming an outside air intake passage for communicating the introduction chamber portion to the outside of the case, an outside air discharge passage for communicating the discharge chamber portion to the outside of the case, and an outside air return passage for communicating the introduction chamber portion and the discharge chamber portion. ,
The merging control means adjusts the merging flow ratio by introducing fresh outside air introduced from the outside of the case into the introduction chamber through the outside air intake passage and introduced into the introduction chamber from the discharge chamber through the outside air return passage. A heat pump type heating device configured to adjust the ratio of the introduced air volume to the used outside air.

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