JP6610157B2 - Heat pump steam generator - Google Patents

Description

  The present invention relates to a heat pump steam generator that recovers heat from an external heat source to generate steam.

As one of the steam generators, there is a heat pump steam generator that recovers heat from warm water such as waste water such as factory effluent and used cooling water to generate steam (for example, Patent Document 1). In the heat pump type steam generator, the evaporator of the heat pump unit functions as an exhaust heat recovery device, where heat is recovered from the heat source hot water into the refrigerant, and the water to be heated is heated by the condenser using the recovered heat. Since steam is generated, there is a merit that the running cost and CO ₂ emission amount can be reduced as compared with a combustion system steam generating apparatus that generates steam using boiler equipment or the like.

JP 2012-247146 A

  By the way, since the heat pump type steam generating apparatus as described above includes a steam generating unit that generates steam while circulating water, it is difficult to completely prevent water leakage at pipes and connection parts of each device. However, it is necessary to prevent water leakage to electrical components installed in the housing of the heat pump steam generator and water leakage outside the housing. Therefore, it may be possible to discharge all of the water leaked from the steam generation section to the drainage path outside the housing as drain water, but depending on the installation environment of the device, a large amount of drain water may not be discharged, There is a great demand for treatment of water leaks in the apparatus.

  The present invention has been made in consideration of the above-described problems of the prior art, and provides a heat pump type steam generator that can prevent water leaking from a connection portion of a pipe from leaking out of the casing. With the goal.

  A heat pump type steam generator according to the present invention includes a compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion mechanism that decompresses the refrigerant that has exited the condenser, and an external heat source. A heat pump unit that annularly connects an evaporator that evaporates the refrigerant with heat recovered from the steam, and a steam generation unit that supplies heated water to the condenser and heats the heated water with the refrigerant to generate steam And a heat pump type steam generation device comprising a housing that houses the heat pump unit and the steam generation unit, and a motor that drives the compressor at the bottom of the housing, and the steam generation unit A tray that can store water leaked from the housing, and a fan that takes in outside air from a ventilation port formed in the lower side surface of the housing and blows it to the motor, and sucks the water stored in the tray. Evaporate Together with its evaporation sheets to promote is provided, evaporation sheet is characterized in that it is arranged at a position to receive a blast from the vicinity and the fan of the motor.

  According to such a configuration, water leaked from the water pipe of the steam generation section that generates steam while circulating water and its connection section can be stored in the tray in the casing and can be evaporated by the evaporation sheet. It is possible to prevent water from overflowing from the tray and leaking out of the housing. Moreover, since the evaporating sheet is arranged in the vicinity of the motor and at a position for receiving the air from the fan, evaporation is promoted by receiving exhaust heat from the motor, and at the same time, the air from the fan for cooling the motor is sent. In response, evaporation is further promoted. As a result, it is possible to more reliably prevent water from overflowing from the tray and leaking out of the housing, and the wastewater generated inside the housing can be treated inside the housing. The amount of drain water to the can be reduced.

  The condenser may be arranged at the bottom of the casing and at a position deviated from the blowing direction by the fan. That is, the condenser needs to suppress heat dissipation as much as possible in order to ensure the steam generation efficiency. However, the condenser is heavy, and when the thermosiphon circuit is formed by arranging the condenser at a low position, for example, the condenser needs to be arranged at the bottom of the casing. Therefore, by disposing the condenser at a position deviating from the air blowing direction from the fan with respect to the motor installed at the bottom, forced cooling from the fan can be prevented and the steam generation efficiency can be ensured.

  The tray may be configured to be provided over the entire bottom surface of the housing. Thereby, even if it is a case where water leaks from any piping and its connection part of a steam production | generation part, it can trap reliably and can prevent the water leak to the exterior more reliably.

  The compressor may be an open type compressor in which the motor is configured as a separate body, and the evaporating sheet may be disposed at least between the compressor and the motor. If it does so, since the waste heat from a compressor can also be received with an evaporating sheet, the higher evaporation effect can be anticipated.

  The evaporating sheet may have a configuration in which a longitudinal direction thereof is arranged along a blowing direction of the fan. If it does so, it will prevent that the ventilation path | route of a fan is obstructed by an evaporating sheet, and the ventilation from the fan will pass smoothly along the longitudinal direction of an evaporating sheet, Therefore The evaporating efficiency improves.

  The evaporating sheet may have a guide portion that changes a blowing direction by the fan. Then, for example, by changing the air blowing direction by the fan with the guide portion, the air can be smoothly guided to the exhaust port that discharges air out of the housing. And since guide part itself receives the ventilation by a fan directly, the evaporation efficiency here improves.

  According to the present invention, water leaked from the water pipe of the steam generation unit and its connection portion can be stored in the tray in the casing and evaporated by the evaporating sheet, so that the water overflows from the tray and outside the casing. Leakage can be prevented. Moreover, the evaporation sheet is accelerated by receiving heat exhausted from the motor, and at the same time, the evaporation is further accelerated by receiving air from a fan for cooling the motor.

It is a perspective view showing the appearance structure of the heat pump type steam generator concerning one embodiment of the present invention. It is a block diagram which shows typically the circuit structure of the heat pump type steam generation apparatus shown in FIG. It is a perspective view which shows the internal structure of a housing | casing. It is a plane sectional view showing typically the internal structure of a case. It is the perspective view which showed typically the internal structure in the bottom part vicinity of a housing | casing. It is the cross-sectional front view which showed the internal structure in the bottom part vicinity of a housing | casing typically. It is the perspective view which showed typically the internal structure in the bottom part vicinity of the housing | casing at the time of using the evaporation sheet which concerns on a modification. It is side surface sectional drawing which shows typically the internal structure of the housing | casing at the time of using the evaporation sheet | seat shown in FIG.

  Hereinafter, preferred embodiments of the heat pump type steam generator according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an external structure of a heat pump steam generator 12 according to an embodiment of the present invention, and FIG. 2 schematically shows a circuit structure of the heat pump steam generator 12 shown in FIG. It is a block diagram. The heat pump steam generator 12 is a system that generates steam using exhaust heat recovered from warm water such as factory waste water, and the generated steam is sent to an external steam utilization facility such as a drying device or a sterilizer.

  First, a configuration example of a circuit structure of the heat pump type steam generator 12 will be described.

  As shown in FIG. 2, the heat pump steam generator 12 generates heat by evaporating water, generates steam, and heats the hot water (heat source hot water) supplied by the hot water supply unit 17 and the steam generator 16 that sends the water to the outside. And a heat pump unit 18 that supplies this heat as a heat source for generating steam in the steam generation unit 16 and a control unit 20 that controls the system.

  The heat pump unit 18 recovers heat from hot water, a compressor 21 that compresses the refrigerant, a condenser 22 that condenses the refrigerant compressed by the compressor 21, an expansion mechanism 24 that decompresses the refrigerant that has exited the condenser 22, and Then, the evaporator 26 that evaporates the refrigerant is connected in a ring shape using the refrigerant pipe 27 to circulate the refrigerant. In the present embodiment, a heater 28 for preheating the feed water is connected between the outlet side of the condenser 22 and the inlet side of the expansion mechanism 24. The expansion mechanism 24 is an electronic expansion valve, for example, and can adjust the opening degree under the control of the control unit 20.

  The refrigerant that has been compressed by the compressor 21 to a high temperature and high pressure is cooled and condensed by exchanging heat with water circulating in the steam generation unit 16 in the condenser 22. The refrigerant that has exited the condenser 22 is preheated with water flowing through the water supply pipe 30 a by the heater 28 and further cooled, and then adiabatically expanded by the expansion mechanism 24, and absorbs heat from the hot water flowing through the hot water supply unit 17 by the evaporator 26. Then, it evaporates and returns to the compressor 21. The operation speed of the compressor 21 is controlled through an inverter based on the pressure and temperature of the refrigerant on the suction side and the discharge side under the control of the control unit 20.

  The steam generating unit 16 uses a refrigerant circulating in the heat pump unit 18 as a heat source to evaporate water to generate steam, and a vapor-liquid two-phase flow including water vapor and water generated by the condenser 22 is converted into steam. A water vapor separator 31 that separates into water, a circulation pipe 30b that joins water separated by the water vapor separator 31 with heated water supplied from a water supply pipe 30a and introduces it into the condenser 22; A steam pipe 30c that guides the gas-liquid two-phase flow to the steam separator 31, and a delivery pipe 30d that sends the steam separated by the steam separator 31 to an external steam utilization facility.

  The water vapor separator 31 is formed of a cylindrical container along the vertical direction, and stores water inside the container by supplying water from a water supply pipe 30a connected to a circulation pipe 30b connected to a lower end wall. . The water supply pipe 30 a introduces water (heated water) from a water pipe or water tank (not shown) to the circulation pipe 30 b by a water supply pump 37. The operation of the water supply pump 37 is controlled by the control unit 20. The circulation pipe 30 b is a path that communicates from the lower end wall of the water vapor separator 31 to the condenser 22. The steam pipe 30c is a path through which the gas-liquid two-phase flow circulates from the condenser 22 to the upper side wall of the water vapor separator 31.

  The delivery pipe 30d is connected to the upper end wall of the water vapor separator 31 and is a path that is supplied from the vapor pipe 30c into the water vapor separator 31 and sends out the steam after the water is separated here. The delivery pipe 30d is provided with a pressure regulating valve 38 for controlling the flow rate and pressure of the steam sent out from the heat pump steam generator 12 by appropriately adjusting the opening degree under the control of the control unit 20. It has been.

  In the steam generation unit 16, water is supplied from the water vapor separator 31 to the condenser 22 through the circulation pipe 30 b due to the difference in height between the water surface of the water vapor separator 31 and the water surface of the condenser 22, and the condenser 22. A thermosiphon circuit is formed in which the water vapor generated in step S1 is sent from the steam pipe 30c to the delivery pipe 30d via the water vapor separator 31. As a result, water can be circulated without providing a power source such as a circulation pump in the water circulation system formed by the circulation pipe 30b, the steam pipe 30c, and the water vapor separator 31. Hereinafter, the water supply pipe 30a, the circulation pipe 30b, the steam pipe 30c, and the delivery pipe 30d through which water flows while changing phase from a liquid phase to a gas phase may be collectively referred to as a water pipe 30.

  The warm water supply unit 17 includes a warm water supply path 17 a that supplies warm water to the evaporator 26 and a warm water discharge path 17 b that discharges warm water from the evaporator 26. The hot water supply path 17a is provided with a hot water pump (not shown) that supplies hot water supplied from a hot water supply source such as an external hot water tank at a predetermined flow rate.

  In the heat pump type steam generation device 12 according to the present embodiment, the elements constituting the steam generation unit 16, the hot water supply unit 17, and the heat pump unit 18 are accommodated in the housing 14 (see FIG. 1). .

  Then, next, the internal structure of the housing | casing 14 is demonstrated.

  FIG. 3 is a perspective view showing the internal structure of the housing 14, and FIG. 4 is a plan sectional view schematically showing the internal structure of the housing 14.

  As shown in FIGS. 1, 3, and 4, the housing 14 is a box-like structure that is installed on the ground or floor via legs 39, and an opening provided on the front is opened and closed by a door 40. On the other hand, five surfaces (upper surface, bottom surface, rear surface, left and right side surfaces) other than the front surface are blocked by the panel 42. Inside the housing 14 are housed various devices, pipes, and the like that constitute the steam generation unit 16, the hot water supply unit 17, and the heat pump unit 18.

  As shown in FIGS. 3 and 4, first, in the heat pump unit 18, the compressor 21 and the motor 21 m for driving the compressor 21 are arranged side by side along the front side (door 40 side) on the bottom surface 14 a of the housing 14. The condenser 22 is disposed on the bottom surface 14 a of the housing 14 on the back side of the compressor 21. On the other hand, the evaporator 26 and the heater 28 are arranged above the bottom surface 14a of the housing 14 side by side using a beam material or the like. In the plan view shown in FIG. 4, the evaporator 26 is located on the back side of the motor 21 m, and the heater 28 is located on the side of the evaporator 26. Furthermore, most of the refrigerant pipes 27 connecting the devices of the heat pump unit 18 arranged in this way are arranged above the bottom surface 14 a in the housing 14. In the present embodiment, the compressor 21 having an open structure in which power from a separate motor 21m is transmitted through the belt 43 is used. However, a compressor having a sealed structure in which the motor 21m is integrated is used. May be.

  Next, in the steam production | generation part 16, the water supply pump 37 is arrange | positioned on the back surface side of the motor 21m on the bottom face 14a of the housing | casing 14. FIG. On the other hand, the water vapor separator 31 is disposed above the bottom surface 14 a using a beam material or the like, and is located above the condenser 22. In the plan view shown in FIG. 4, the water vapor separator 31 is located on the back side of the compressor 21 and on the side of the heater 28. Further, most of the water pipes 30 (the pipes 30 a to 30 d) that connect the devices of the steam generation unit 16 arranged in this way are arranged above the bottom surface 14 a in the housing 14.

  Although not shown in FIGS. 3 and 4, the hot water supply path 17 a and the hot water discharge path 17 b of the hot water supply unit 17 are also arranged from the outside of the housing 14 to the inside of the housing 14. It is connected to the evaporator 26 installed in. In the present embodiment, the water vapor separator 31, the evaporator 26, the condenser 22, the water pipe 30 and the refrigerant pipe 27 are appropriately covered with a heat insulating material, and the hot water supply path 17a and the hot water discharge path 17b are similarly insulated. Covered with wood.

  As shown in FIG. 1, an operation panel 44 that is operated when an operator performs various settings, operation commands, and the like for the control unit 20 of the heat pump steam generator 12 is provided on the door 40 that is the front wall of the housing 14. Is provided. As shown in FIGS. 1 and 4, an electrical box 46 that houses electrical components 45 constituting the control unit 20 is attached to the inner surface of the door 40 (see also FIG. 8). Thus, although the electrical box 46 is installed inside the housing 14, the electrical component 45 is separated from other devices such as the compressor 21 by the wall surface of the electrical box 46.

  In the housing 14, a box-side air inlet 48 for sucking outside air is provided in the approximate center of the door 40 serving as the front wall (see FIG. 1), and the outside of the panel 42 serving as the back wall of the housing 14 is provided outside. An intake port (ventilation port) 49 for sucking in air is provided (see FIG. 4), and an exhaust port 50 for discharging air to the outside is provided on the upper portion of the panel 42 serving as the back wall of the housing 14 using a gutter member 51. (See FIGS. 4 and 8). An intake fan 52 for sucking outside air from the intake port 49 is provided in the vicinity of the intake port 49. The intake fan 52 is erected on the bottom surface 14 a via legs (not shown) or attached to the inside of the intake port 49.

  In the plan view shown in FIG. 4, the intake port 49 and the intake fan 52 are located on the back side of the motor 21 m, and the intake fan 52 draws the outside air immediately after sucked from the intake port 49 to the motor 21 m that is a heating element. It can be directly blown and cooled. On the other hand, the condenser 22 heats and evaporates the water to be heated that flows through the water pipe 30, and it is preferable to maintain a high temperature and to suppress heat dissipation. Therefore, the condenser 22 is disposed on the bottom surface 14 a away from the air blowing direction by the intake fan 52, in the present embodiment, on the side of the intake fan 52.

  In the case of the present embodiment, as shown in FIG. 8, the outside air sucked into the housing 14 from the air inlet 49 is exhausted from the air outlet 50 to the outside of the housing 14 by the exhaust fan 53. At the same time, the outside air sucked into the electrical box 46 from the box-side intake port 48 by the box fan 55 provided at the upper part of the electrical box 46 is discharged from the upper part of the electrical box 46 into the housing 14 by the box fan 55. After that, it merges with the outside air from the intake port 49 and is discharged out of the housing 14 through the exhaust port 50.

  FIG. 5 is a perspective view schematically showing the internal structure in the vicinity of the bottom of the casing 14, and FIG. 6 is a cross-sectional front view schematically showing the internal structure in the vicinity of the bottom of the casing 14. .

  As shown in FIG. 5, a tray 60 configured to store water by surrounding four sides of the bottom surface 14 a with side walls 58 is provided at the bottom of the housing 14. On the left and right sides of the motor 21m installed on the bottom surface 14a of the tray 60, a plurality of strip-shaped evaporating sheets 62 (four in FIG. 5) are arranged.

  The tray 60 is for receiving water leaked from the water pipe 30 and its connecting portion and preventing leakage from the casing 14. As shown in FIG. 3 and FIG. 5, the tray 60 is provided over the entire bottom surface 14 a, that is, the entire bottom portion of the casing 14 is configured by the tray 60, so that even if a water leak location cannot be specified. The leaked water can be reliably trapped. In addition, when the water leaking part from the water piping 30 grade | etc., Is limited, the saucer 60 may be arrange | positioned only under the water leaking part instead of the whole bottom face 14a.

  The evaporation sheet 62 absorbs water by a capillary phenomenon and promotes evaporation by a large surface area, and is formed of, for example, a nonwoven fabric or filter paper. The evaporation sheet 62 is provided so as to stand up from the bottom surface of the tray 60, so that the lower portion thereof is immersed in the water W (see FIG. 6) stored in the tray 60 and the upper portion is above the water surface of the water W. Placed in. Thereby, the evaporating sheet 62 can promote the evaporation of the water W stored in the tray 60, and can prevent the water stored in the tray 60 from overflowing to the outside.

  In the case of the present embodiment, the evaporating sheet 62 is disposed in the vicinity of the left and right of the motor 21m, and its longitudinal direction is the air blowing direction from the intake fan 52, that is, from the back wall (intake port 49) to the front wall (door 40). It is arrange | positioned along the direction which goes to. Here, the vicinity of the motor 21m can be paraphrased as a distance that can receive the exhaust heat from the motor 21m, which is a heating element. That is, the evaporating sheet 62 is disposed at a position where it can receive the exhaust heat from the motor 21m, and its longitudinal direction is arranged along the longitudinal direction of the motor 21m, so that it evaporates by receiving the exhaust heat of the motor 21m with a large surface area. Is promoted. Since the evaporation sheet 62 on one side of the motor 21m is disposed at a position sandwiched between the motor 21m and the compressor 21, the exhaust heat from the compressor 21 is also received, and a higher evaporation effect can be expected. Moreover, since each evaporating sheet 62 is arranged in the air blowing direction of the motor 21m, evaporation is further promoted. In addition, since the air blown from the intake fan 52 passes through the gaps between the evaporation sheets 62 and 62 arranged several times, the evaporation is further promoted.

  Thus, in the heat pump steam generation device 12 according to the present embodiment, the bottom surface 14a that is the bottom of the housing 14 can store the motor 21m that drives the compressor 21 and the water leaked from the steam generation unit 16. And an intake fan 52 that takes in outside air from an intake port 49 formed on the lower side surface of the housing 14 and blows it to the motor 21m, and sucks water stored in the tray 60 to evaporate. An evaporating sheet 62 to be promoted is provided, and the evaporating sheet 62 is disposed in the vicinity of the motor 21 m and at a position to receive air from the intake fan 52.

  Therefore, the water leaked from the water pipe 30 of the steam generation unit 16 that generates steam while circulating water and its connection portion can be stored in the tray 60 in the casing 14 and can be evaporated by the evaporation sheet 62. It is possible to prevent water from overflowing from the tray 60 and leaking out of the housing 14. Moreover, since the evaporating sheet 62 is disposed in the vicinity of the motor 21m and receiving air from the intake fan 52, the evaporation is accelerated by receiving exhaust heat from the motor 21m, and at the same time, the motor 21m is cooled. The evaporation from the intake fan 52 can be further promoted. Accordingly, it is possible to more reliably prevent water from overflowing from the tray 60 and leaking out of the casing 14, and wastewater generated in the casing 14 can be treated in the casing 14. Even when the amount of water is large, the amount of drain water to the outside of the housing 14 can be reduced. Further, it is possible to prevent the water level stored in the tray 60 from rising excessively and coming into contact with the electrical component 45.

  In addition, when the thing of the closed type structure integrated with the motor 21m is used as the compressor 21, it arrange | positions so that the ventilation from the intake fan 52 may hit the motor 21m part of the compressor 21 of this closed type structure, What is necessary is just to arrange the evaporation sheet 62 near the side part.

  The condenser 22 is disposed at a position deviating from the air blowing direction by the intake fan 52 and the bottom surface 14 a serving as the bottom of the housing 14. The condenser 22 needs to suppress heat dissipation as much as possible in order to ensure the steam generation efficiency. However, the condenser 22 is heavy, and the heat pump steam generator 12 forms the thermosiphon circuit by disposing the condenser 22 at a position lower than the water vapor separator 31. Arranged on the bottom surface 14 a of the housing 14. Therefore, by disposing the condenser 22 at a position away from the air blowing direction from the intake fan 52 with respect to the motor 21m that is also installed on the bottom surface 14a, forced cooling from the intake fan 52 is prevented, and steam generation efficiency is ensured. can do.

  By the way, although the example of a structure which formed the evaporating sheet 62 in strip shape was demonstrated above, the shape of the evaporating sheet 62 can be changed suitably. For example, as shown in FIGS. 7 and 8, a plurality of evaporating sheets 64 bent in an L shape when viewed from the side can be used in a stacked manner.

  The evaporating sheet 64 has a guide portion 64 a that is a vertical surface with a distal end bent with respect to the intake fan 52. As a result, the air blown from the intake fan 52 cools the motor 21m and promotes evaporation on the evaporation sheet 64, and then circulates upward while evaporating water that has permeated the guide portion 64a (in FIG. 8). Air A). That is, the guide part 64a has a function of changing the air blowing direction from the intake fan 52 and guiding the air flow in the housing 14 more smoothly. Note that, as indicated by a two-dot chain line in FIG. 5, a guide portion 64 a formed of the vertical evaporation sheet 62 may be added to the end of the evaporation sheet 62 on the distal side from the intake fan 52.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.

  For example, in the above embodiment, four evaporating sheets 62 and 64 are arranged on the left and right sides of the motor 21m. However, the number of evaporating sheets 62 and 64 may be changed, of course, in the vicinity of the motor 21m. You may add to other positions.

DESCRIPTION OF SYMBOLS 12 Heat pump type steam generator 14 Case 14a Bottom surface 16 Steam generation part 17 Hot water supply part 18 Heat pump part 20 Control part 21 Compressor 21m Motor 22 Condenser 24 Expansion mechanism 26 Evaporator 27 Refrigerant piping 28 Heater 30a Water supply pipe 30b Circulation Pipe 30c Steam pipe 30d Delivery pipe 31 Steam separator 40 Door 42 Panel 44 Operation panel 45 Electrical component 46 Electrical box 49 Intake port 52 Intake fan 58 Side wall 60 Receptacle 62, 64 Evaporating sheet 64a Guide part

Claims (5)

A compressor that compresses the refrigerant; a condenser that condenses the refrigerant compressed by the compressor; an expansion mechanism that depressurizes the refrigerant that has exited the condenser; and an evaporator that evaporates the refrigerant with heat recovered from an external heat source A heat pump unit connected in a ring shape,
A steam generation unit that supplies heated water to the condenser and heats the heated water with the refrigerant to generate steam;
A housing that houses the heat pump unit and the steam generation unit;
A heat pump type steam generator comprising:
The bottom of the housing is provided with a motor that drives the compressor, and a tray that can store water leaked from the steam generation unit,
A fan that takes in outside air from a ventilation opening formed on the lower side surface of the housing and blows air to the motor;
An evaporation sheet that sucks water stored in the tray and promotes evaporation is provided, and the evaporation sheet is disposed in the vicinity of the motor and at a position that receives air from the fan ,
The condenser is a heat pump type steam generating device according to claim Rukoto is positioned outside a blowing direction by the bottom and the fan of the housing. A compressor that compresses the refrigerant; a condenser that condenses the refrigerant compressed by the compressor; an expansion mechanism that depressurizes the refrigerant that has exited the condenser; and an evaporator that evaporates the refrigerant with heat recovered from an external heat source A heat pump unit connected in a ring shape,
A steam generation unit that supplies heated water to the condenser and heats the heated water with the refrigerant to generate steam;
A housing that houses the heat pump unit and the steam generation unit;
A heat pump type steam generator comprising:
The bottom of the housing is provided with a motor that drives the compressor, and a tray that can store water leaked from the steam generation unit,
A fan that takes in outside air from a ventilation opening formed on the lower side surface of the housing and blows air to the motor;
An evaporation sheet that sucks water stored in the tray and promotes evaporation is provided, and the evaporation sheet is disposed in the vicinity of the motor and at a position that receives air from the fan,
The compressor is an open type compressor in which the motor is configured separately,
The evaporative sheet is disposed at least at a position sandwiched between the compressor and the motor. A compressor that compresses the refrigerant; a condenser that condenses the refrigerant compressed by the compressor; an expansion mechanism that depressurizes the refrigerant that has exited the condenser; and an evaporator that evaporates the refrigerant with heat recovered from an external heat source A heat pump unit connected in a ring shape,
A steam generation unit that supplies heated water to the condenser and heats the heated water with the refrigerant to generate steam;
A housing that houses the heat pump unit and the steam generation unit;
A heat pump type steam generator comprising:
The bottom of the housing is provided with a motor that drives the compressor, and a tray that can store water leaked from the steam generation unit,
A fan that takes in outside air from a ventilation opening formed on the lower side surface of the housing and blows air to the motor;
An evaporation sheet that sucks water stored in the tray and promotes evaporation is provided, and the evaporation sheet is disposed in the vicinity of the motor and at a position that receives air from the fan,
The evaporative sheet has a guide part that changes a blowing direction by the fan. In the heat pump type steam generator according to any one of claims 1 to 3 ,
The heat-pump steam generator, wherein the tray is provided over the entire bottom surface of the housing. In the heat pump type steam generator according to any one of claims 1 to 4,
The evaporative sheet has a longitudinal direction arranged along a blowing direction of the fan.

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