JP4317195B2 - Dryer - Google Patents

Description

The present invention mainly uses marine products such as fish and processed products thereof, agricultural products such as vegetables and fruits, various processed foods such as raw noodles, timber, leather and other items to be used for dehumidification and drying , especially cold water. The present invention relates to a dryer provided with a cold water dehumidifier using a cold water machine for generation.

  Air / cold water contact filler as a dryer used to dehumidify and dry fish and other marine products and processed products thereof, agricultural products such as vegetables and fruits, raw processed noodles and other processed foods, timber, leather and other items We propose a dryer using a cold water dehumidifier that includes a dehumidification tower that generates dehumidified air by pouring cold water from the upper part of the cylindrical case and sending air to be dehumidified from the lower part to the upper part. (Patent Documents 1 and 2).

  The cold water dehumidifier used in the proposed dryer has the following technical problems, its technical level is low, and the spread of the cold water dehumidifier is delayed.

1) The conventional chiller used to obtain cold water to be poured from the top of the dehumidifying tower can only produce cold water of about 10 ° C.

2) If the dehumidification tower and the water cooler are installed side by side, it is difficult to return the hot water falling below the dehumidification tower to the water cooler, so it is necessary to drop the water from the dehumidification tower to the water cooler. Therefore, the dehumidifying tower is inevitably high.

3) Normally, an electric heater is used to heat the air, which has been cooled down by cold water dehumidification, to a temperature suitable for drying. However, a large-sized machine increases the heat energy cost and practically increases the running cost. It becomes difficult to adopt.

4) Since 1), 2) and 3) are unsolved, the timber is extracted and condensed by drying the timber by low-temperature dehumidification drying in a dryer using a cold water dehumidifier. And cannot be recovered.
JP 2002-206895 A JP 2005-87104 A

1) In the chilled water dehumidifier used in the proposed dryer, the chilled water machine for obtaining chilled water (chilled water of about 2 to 5 ° C.) to be poured from the upper part of the dehumidifying tower has a coil that is inexpensive to manufacture. If the cooling coil is configured in the same way as the cooling coil in the heat pump or the evaporator of the refrigerator, the heat passage rate is 100 (Kcal / m ² · h · ° C) or less, and the coil As a result, icing occurs and the thermal efficiency is inferior.

  In other words, the chilled water machine is required to be devised so as not to cause icing around the coil and to increase the heat transfer rate.

2) In addition, since the dehumidifying tower usually has a high apparatus height as described above, a device for reducing the height is required.

3) Furthermore, because the temperature of the dehumidified air decreases due to low temperature dehumidification, air heating is necessary. However, when heating with an electric heater is used, the dryer can be made medium or large while maintaining energy saving. Can not.

  In addition, when drying timber (hiba, firewood, etc.), the problems 1), 2) and 3) above are solved to condense and recover tree extract components such as hinokitiol from the air sent from the drying cabinet. There is a need.

This onset bright to solve the aforementioned problem, without a double wall structure comprising a cylindrical inner wall of the upper and lower one end is closed on the inside of the cylindrical outer wall for storing the water, and the cylindrical outer wall and the cylindrical inner wall A refrigerant pipe is spirally wound in the gap between the pipes, a refrigerant for heat exchange is supplied to the pipe, and water is circulated from the upper and lower sides to the gap between the inner and outer walls. Cold water is poured from the upper part of the cylindrical case containing the chilled water generator for temperature cold water and the filler for air / cold water contact, and the dehumidified air is sent by sending the air to be dehumidified from the lower part to the upper part. and generating dehumidified tower, between the combination to allow out feeding of cold water dividing part moisture towers that will be generated by the water cooler installed in collateral shape, further wherein the dividing tower and the water coolers, dehumidifying tower A hot water transfer device that temporarily stores the generated hot water and sends it to the chiller as appropriate A dryer comprising only cold water type dehumidifier comprising,
A part of the air sent out from the air outlet in the drying cabinet is sent to the lower part of the dehumidifying tower, and the low-temperature air sent out after being dehumidified by the dehumidifying tower is provided in the air sending path from the dehumidifying device. It is configured to be connected to pass through an air heating device by a blower and return to the inside of the drying cabinet, and the air heating device is downstream of the air blower in the delivery path from the dehumidification tower, A circulation duct for returning a part of the air that has passed through the air heating device to the delivery path upstream from the air blower; and a part of the air that passes through the air heating device is circulated to provide the air heating device By repeatedly passing the portion, the air passing through the air heating device is heated to a predetermined temperature and returned to the drying cabinet .

According to this dryer, in the chiller of the chilled water type dehumidifier, the water flowing from the upper and lower sides through the gap between the inner and outer walls flows in a turbulent manner around the spiral refrigerant pipe. In this way, the pipe surface is cooled in contact with the pipe surface reliably and can generate cold water efficiently without causing icing inside the chiller around the coil. Can improve the dehumidifying effect .

And in the dehumidification tower, the low-temperature air (dry air) sent from the inside of the drying cabinet and subjected to the dehumidifying treatment is passed through the air heating device and set in accordance with the drying object in the drying cabinet. The temperature can be returned to the inside of the drying cabinet, and the drying effect in the drying cabinet can be enhanced. In particular, in the air heating device, the air passing therethrough can be heated to a predetermined temperature by circulating a part of the air using the circulation duct and repeatedly passing the heated portion.
In the chilled water machine of the chilled water dehumidifying device provided in the dryer, the lower end of the cylindrical inner wall is closed , the water is sucked in the vicinity of the closed end portion inside the cylindrical inner wall, and the outside of the cylindrical outer wall A circulating water channel that enters the cylindrical outer wall and feeds from the lower outer center of the closed end of the cylindrical inner wall is provided, and a water circulation pump is provided in a part of the circulating water channel, water was a distributed toward the inside of the gap upward at a predetermined speed with circulating the circulating water channel, part of the cold water circulating, to send to by Rijo tower waterway branched from the water circulation passage by It is good to be provided. Thereby, water can be circulated positively and reliably through the gap between the inner and outer walls, and it can be reliably brought into contact with the refrigerant piping, and cold water can be generated with high efficiency.

The hot water transfer device in the cold water dehumidifier includes a tank body that temporarily stores hot water generated in the dehumidification tower, and a submersible pump that operates by a level switch to send the hot water to the cold water machine when the amount of stored water exceeds a certain level. Shall be. As described above, by providing a hot water transfer device between the dehumidification tower and the water cooler, the dehumidification tower and the water cooler can be installed on the same installation surface, and the entire device is excessively tall. The warm water generated in the dehumidifying tower can be reliably returned to the chiller by the submersible pump .

As the cold water type dehumidifier of the dryer, together with the pouring cold water fed from the water cooler than the top of the filling material in the cylindrical case that houses the target dehumidification toward the top from the bottom of the cylindrical casing Two dehumidification towers that send cold air to generate cold water are connected and connected in series along the air flow path, so that the air to be dehumidified sent from the dryer is sequentially sent to each dehumidification tower for dehumidification It can also be provided. In this case, the height of the dehumidifying tower can be reduced, and a predetermined dehumidifying effect can be obtained even when the dehumidifying tower is of a low and high type, and further, the processing capacity can be increased.

In the drying cabinet in the dryer, circulation for blowing air from the inner back side to the sending side by sucking the air in the warehouse on the sending side, returning it to the inner back side and feeding it out. A duct for circulation and a blower for circulation are provided, and the air heated by passing through the air heating device joins with the circulation air in the circulation duct and is supplied to the inner back side. In view of the drying effect in the drying cabinet, it is particularly preferable.

In the dryer, as the air heating device provided between the dehumidification tower and the drying cabinet, a water heat source heat pump type air heating in which a heating part inside the device uses a refrigerant for heat exchange in the chiller consists vessel, the air flow adjustable air blower is provided on the air inlet side of the body interior with the the heating device, Rutotomoni the air delivered from the dehumidifying tower is passed through a portion of the heater, and passed through the air By circulating a part of the air through the circulation duct, it can be provided to be heated to a predetermined temperature and returned to the drying cabinet. In this case, since the hot water generated in the dehumidifying tower is used as the water heat source, the heat source can be made free and the operating cost of the dryer can be reduced.

In the dryer, as the air heating device provided between the dehumidifying tower and the drying cabinet, a heating part inside the device is a fuel-fired air heating device, and a combustion part is provided inside the main body. provided with a cylindrical inner structure, air flow adjustable air blower is provided on the air inlet side of the internal body, Rutotomoni the air delivered from the dehumidifying tower is passed in contact with the inner cylinder, a part of the air that has passed through Is circulated by the circulation duct, and may be provided so as to be heated to a predetermined temperature and returned to the drying cabinet. In this case, it is easy to set the heating temperature of the air after dehumidification to be returned to the drying cabinet, and in particular, it becomes easier to set a slightly higher temperature as required for the drying object in the drying cabinet. This can contribute to shortening the drying efficiency and drying time.

  Furthermore, another aspect of the present invention is the dryer according to the invention, further comprising a drying cabinet for drying wood, and a cold water dehumidifying device provided in a part of an air flow path from the drying cabinet to the dehumidifying tower. Using a part of the cold water sent from the chiller to the dehumidifying tower, the air sent from the drying cabinet that dries the wood is cooled to condense and recover the tree extract components (eg, hinokitiol) contained in the air And a tree extraction component recovery tower. In this case, simultaneously with the drying of the wood, a part of the tree extract components such as hinokitiol contained in the wood can be condensed and recovered. Thus, the air after the tree extract component recovery is sent to the dehumidifying tower, dehumidified in the same manner as described above, heated to a predetermined temperature, and returned to the drying cabinet.

  In the dryer, the tree extraction component recovery tower includes an inner cylinder inside a cylindrical main body forming a cooling chamber, and from above and below one side in a gap between the cylindrical main body and the inner cylinder. A pipe for chilled water arranged spirally toward the other side is continuously provided in the inner cylinder, and a part of the chilled water sent from the chiller is circulated and supplied to the inner cylinder and the pipe. In addition, the air extracted from the inside of the drying chamber is circulated from the upper and lower sides to the gap between the inner cylinder in the cylindrical main body, thereby condensing and collecting the tree extract components in the air. It can be made. Thereby, cooling of the air in a tree extraction component collection tower and condensation of tree extraction components, such as hinokitiol, are performed efficiently.

According to the chilled water machine of the chilled water type dehumidifier in the dryer of the present invention described above, the refrigerant circulation pipe is spirally arranged in the gap between the cylindrical inner wall and the outer wall of the inner and outer double walls, and the gap is placed in the gap. By allowing cold and hot water to circulate actively, the heat transfer rate can be increased, and while it is a coil-type chiller, it is highly efficient without causing icing inside the chiller such as around the coil. Ru can generate cold water.
Further, in the cold water dehumidification apparatus, on can increase the dehumidification effect of the dehumidifying tower using cold water of the, set up and dehumidification towers and water coolers to collateral shape, also the dehumidifying tower and water coolers by setting kick hot water moving apparatus between the back of the whole apparatus does not become excessively high, compact configurable also facilitates installation.

And according to the dryer of this invention provided with the said cold-water type dehumidification apparatus , according to the drying target object in a drying cabinet by allowing the air (dry air) dehumidified by the dehumidification tower to pass through an air heating apparatus. Thus, the temperature can be returned to the drying chamber at a predetermined temperature, thereby increasing the drying efficiency in the drying chamber. That is, since the dry air in the drying chamber is lower in humidity than the conventional dryer, the drying driving force (= dry bulb temperature of the drying air-wet bulb temperature) increases, the drying time becomes shorter, and the drying chamber becomes shorter. The wind speed can be lowered and energy saving of the blower equipment is achieved.

In particular, in this case, by using a water heat source heat pump type condenser that uses a refrigerant for heat exchange in a chiller as the air heating device , hot water generated by the cold water dehumidifier can be effectively used as a heat source. Thus, the heat source can be made free, and the cold water used in the dehumidification tower can be efficiently generated, so that the operation cost for the drying treatment can be set at a low cost. Furthermore, the use of a fuel-fired air heating device facilitates the temperature setting of the dehumidified dry air, in particular, a slightly higher temperature setting, which can contribute to shortening the drying efficiency and drying time in the drying chamber.

  Furthermore, in the wood dryer using the cold water dehumidifier, the tree extract component recovery tower (such as hinokitiol) in the air to be dehumidified and dried can be efficiently condensed and recovered by providing the tree extract component recovery tower.

  Next, embodiments of the present invention will be described based on examples shown in the drawings.

FIG. 1 is a schematic explanatory view showing a first embodiment of a cold water dehumidifying apparatus provided in a dryer according to the present invention to be described later .

  The cold water dehumidifier of the first embodiment is for dehumidifying and drying fishery products such as fish and processed products thereof, agricultural products such as vegetables and fruits, various processed foods such as raw noodles, timber, leather and other various items. 3 is used to dehumidify the air sent from the drying cabinet and return it to the drying cabinet. In the dehumidification tower 100 and the dehumidification tower 100 as follows, It is configured in combination with a chiller 200 according to the present invention for generating cold water to be used.

  A dehumidifying tower 100 is formed by filling a large amount of air / water contact filler 103 with a gap on a bottom portion 102 made of an inner perforated plate or the like through which air can be passed. Cold water is poured by an injection nozzle 104 from the upper part in 101, that is, above the filler 103, and air to be dehumidified is sent from the lower part in the cylindrical case 101, that is, from the lower part to the upper part of the filler 103. Thus, it is provided to generate dehumidified air. In the figure, 105 is a water storage part for storing the water (hot water) that has passed through the portion of the filler 103, 106 is a duct for the flow of air sent from a drying cabinet, etc. An opening is made in the space above the liquid level in the water reservoir 105. Reference numeral 107 denotes a duct for delivering dehumidified air, and is provided in communication with a space above the filler 103 in the cylindrical case 101, for example, a space above the injection nozzle 104. In general, an air blower is provided in a part of the flow duct 106 or the discharge duct 107 so that a predetermined amount of air flows through the dehumidification tower 100.

  As the filler 103, a small piece formed of plastic, rubber, or ceramic, or a small piece of wood or other various pieces formed to increase the contact area between air and cold water can be used.

  The chiller 200 has a double wall structure including a cylindrical inner wall 202 whose upper and lower ends are closed inside a cylindrical outer wall 201 for storing water, and between the cylindrical inner wall 202 and the cylindrical outer wall 201. A refrigerant pipe 204 is spirally wound around the cylindrical inner wall 202 at a predetermined pitch in the gap 203, and a refrigerant for heat exchange is supplied to the pipe 204 for circulation. It is provided so as to generate cold water of a predetermined temperature by circulating water from the upper and lower sides through the gap 203 between the inner and outer walls 201 and 202. The cylindrical inner wall 202 is provided so that the entire inner wall 202 is submerged in the stored water in the cylindrical outer wall 201. The gap 203 can be appropriately set according to the diameter of the pipe 204 so as to have a space suitable for heat exchange between the inner and outer walls 202 and 201. For example, the diameter of the pipe 204 is about 20 mm. In this case, the gap 203 is set to a range of 30 to 50 mm. Also, the spiral winding pitch of the pipe 204 can be set as appropriate so as to be suitable for the heat exchange action.

  In the case of FIG. 1, the cylindrical inner wall 202 has a conical shape facing downward with its lower end closed. Then, as a means for circulating water through the gap 203, water is sucked in the vicinity of the closed end 202a at the lower part in the cylindrical inner wall 202, and it goes around the outside of the cylindrical outer wall 201 to enter the inside of the cylindrical outer wall 201. A circulation water channel 205 is provided to feed from the center of the lower part of the closed end 202a of the cylindrical inner wall 202, and a water circulation pump 206 is provided in a part of the circulation water channel 205. Is circulated and circulated, so that the inside of the gap 203 is repeatedly circulated from the lower part to the upper part, and is positively brought into contact with the pipe 204 in the gap 203.

  The refrigerant flowing through the pipe 204 passes through the solenoid valve 211 and the expansion valve 212 in the supply side path and becomes a low temperature state (for example, −5 ° C. to −7 ° C.) and enters the cylindrical outer wall 201, and the gap After passing through the spiral portion 203, it is compressed through the compressor 230 in the return side path outside the cylindrical outer wall 201, then sent to the condenser 240 as a radiator, and again after heat radiation, the electromagnetic valve 211 and the expansion valve 212. Is then circulated and fed into the cylindrical outer wall 201.

  While the chilled water generated in the chilled water machine 200 is circulated through the circulation channel 205, a part of the chilled water is sent to the dehumidification tower 100 by a chilled water pipe 207 connected to the circulation channel 205, It is provided so that it may inject from the injection nozzle 104 in the upper part in the dehumidification tower 100. 208 is a throttle valve for adjusting the flow rate of cold water, and 209 is a pressure gauge.

  In the figure, 213 is a water supply pipe, 214 is a flow rate adjusting valve, 215 is an air vent valve, 216 is an overflow drain pipe, and 217 is a liquid level gauge.

  In the figure, reference numeral 220 denotes a temperature controller capable of setting a necessary temperature. The temperature sensor 221 opens and closes the electromagnetic valve 211 so as to obtain a preset temperature in accordance with the detected value of the water temperature in the chiller 200. The refrigerant supply is adjusted or restricted, and the inverter 222 is controlled by the inverter 222 to adjust the amount of water to be circulated and the flow velocity. Thereby, the water temperature in the chiller 200 is kept at a preset temperature, for example, about 2 ° C. Since the chilled water machine 200 configured as described above can be manufactured at low cost, it can be used as an alternative to the commercially available “chiller system”.

  The dehumidifying tower 100 and the chiller 200 are installed in parallel on the same plane, and water (hot water) generated in the dehumidifying tower 100 is returned to the chiller 200 between the dehumidifying tower 100 and the chiller 200. A hot water transfer device 300 for feeding is provided. In the hot water transfer device 300, a tank main body 301 that stores hot water and a water storage unit 105 of the dehumidifying tower 100 are connected by a pipe 302, and water is stored in the tank main body 301 at the same level as the water storage unit 105. It is supposed to be. A submersible pump 303 is provided in the tank main body 301. When the amount of stored water exceeds a certain level, the submersible pump 303 is operated by a float type level switch 304, and the stored water (warm water) is supplied through the feed pipe 305. It is configured to feed into the cylindrical outer wall 201 of the chiller 200. Reference numeral 306 denotes a check valve.

In the chiller 200 of the chilled water dehumidifier of the above embodiment, the water that circulates in the gap 203 between the cylindrical inner wall 202 and the cylindrical outer wall 201 from the upper and lower sides, in the case of FIG. However, it becomes a turbulent flow around the spiral pipe 204 in the gap 203 and circulates while being positively brought into contact with the surface of the refrigerant pipe 204 and being cooled by a heat exchange action. For example, cold water of 2 ° C. can be generated, and the temperature of the cold water in the cold water machine can be kept at about 2 ° C. Further, the heat transfer coefficient of the pipe 204 for the coolant, for example, can also be improved from the conventional 100Kcal / ^{m 2} · h · ℃ about the ^{500 (Kcal / m 2 · h} · ℃) above, the cold water Generation efficiency can be increased. In addition, since the water flows while contacting the refrigerant pipe 204, the entire amount of water in the chiller 200 is kept at a predetermined temperature without causing icing inside the chiller such as around the coil. Can be cold water.

And the cold water produced | generated in the cold water machine 200 is sent to the dehumidification tower 100 through the cold water pipe 207, and is poured from the upper part of the filler 103 from the injection nozzle 104. FIG. At the same time, in the dehumidifying tower 100, as will be described later, the air to be dried sent from the drying cabinet is sent to the lower part in the cylindrical case 101 through the flow duct 106, and below the filler 103. While passing through the portion of the filling material 103, it is dehumidified by coming into contact with the cold water flowing down the portion to become low-temperature dehumidified air, and dried by the upper delivery duct 107. It is sent to the warehouse .

  Further, warm water (for example, warm water at 14 ° C.) generated in the dehumidification tower 100 is temporarily stored in the water storage unit 105 and the warm water transfer device 300 at the lower part of the dehumidification tower 100, and by the operation of the submersible pump 303 in the warm water transfer device 300. The water is appropriately returned to the cold water machine 200 and repeatedly used for cold water generation.

FIG. 2 shows a second embodiment of a cold water dehumidifier equipped with a chiller used in the dryer of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals. The detailed explanation is omitted.

In the second embodiment, the charging member 103 is accommodated in the cylindrical case, and cold water fed from the cold water machine 200 is poured from above the filler 103 and the cylindrical case 101 The two dehumidification towers 100-1 and 100-2 having the same configuration as described above, which generate dehumidified air by sending air to be dehumidified from the lower part to the upper part of the filler 103, are air flow paths. Are connected and connected in series. Therefore, the chilled water pipe 207 that feeds chilled water from the chilled water machine 200 branches into two paths in the middle, and the respective dehumidification towers 100-1 and 100-2 are connected to the cylinders via the throttle valve 208 and the pressure gauge 209, respectively. It is connected to the injection nozzle 104 arranged in the upper space in the case 101. The first removal tower 100-1 for feed stream that is connected to the cylindrical case 101 in the upper space of the (paper left side of FIG. 2) of a drying cabinet or these air flow feed duct 106 is connected A duct 116 is connected to a lower space forming a water storage part in the cylindrical case 101 of the second dehumidifying tower 100-2, and the air dehumidified in the first dehumidifying tower 100-1 The second dehumidifying tower 100-2 is dehumidified and sent out from the upper delivery duct 107. The water storage portions 105 of both dehumidification towers 100-1 and 100-2 are connected to each other by the hot water transfer device 300 and the pipe 302, respectively. Other configurations are the same as those of the first embodiment described above.

  In the case of this embodiment, the heights of the individual dehumidification towers 100-1 and 100-2 are set low, and the dehumidification treatment is continuously performed by the two dehumidification towers 100-1 and 100-2. Even so, sufficient processing capacity can be secured.

  In the cold water type dehumidifying apparatus of the above-described embodiment, the case where the hot water moving device 300 is installed in parallel between the dehumidifying tower 100 and the cold water machine 200 is shown, but the height of the cold water machine 200 is the dehumidifying tower. Since it can be set lower than 100, the hot water transfer device 300 is set integrally below the lower part of the chiller 200, particularly below the bottom of the cylindrical outer wall 201, as in the example of FIG. You can also.

The above-mentioned cold water type dehumidifier is used to configure the dryer according to the present invention in combination with a drying cabinet, and in this case, on the inflow side of air to be dehumidified connected to the dehumidification tower 100. The flow duct 106 and the dehumidified air delivery duct 107 can be installed in direct connection with the drying cabinet, respectively, but in the present invention, after the dehumidification treatment sent from the dehumidification tower 100 the air to connect adapted to heat to a predetermined temperature by the air heater back into the drying oven.
FIG. 3 shows a schematic configuration of one embodiment of a dryer according to the present invention provided with the cold water dehumidifying device and the air heating device, and FIG. 4 shows an enlarged portion of the air heating device same as the above.

  In the dryer of this embodiment, each configuration of the cold water dehumidifier, that is, the basic configurations, functions, and functions of the dehumidification tower 100, the cold water machine 200, and the hot water transfer device 300 are as described above. However, in FIG. 3, a hot water transfer device 300 for returning the hot water generated in the dehumidifying tower 100 to the chiller 200 is integrally provided at the lower part of the chiller 200.

  In FIG. 3, 900 is a drying cabinet and 400 is an air heating device. The drying cabinet 900 is provided with a circulation fan 901 provided on the delivery side of the air in the cabinet and a circulation duct 902 extending from the blower 901 to the inner back side of the cabinet. By sucking from the side, returning to the inner back side, and blowing it out, air is sent from the inner back side toward the outlet side to enhance the drying effect in the storage. An air flow duct 106 connected to the lower part of the dehumidifying tower 100 in the cold water dehumidifier is connected to an end wall portion on the delivery side of the drying cabinet 900, and a part of the air in the drying cabinet 900 (dehumidification) Air containing the target moisture) can be sent to the dehumidifying tower 100. In the case of the figure, a blower 110 is provided in a flow duct 106 from the drying chamber 900 to the dehumidification tower 100, and the air is flowed by the blower 110 and sent to the dehumidification tower 100. Reference numeral 903 denotes a drying cart provided with a mounting shelf for mounting a drying object, which has various configurations according to the type of the drying object.

The air heating device 400 is provided in a part of a delivery path by the air delivery duct 107 after the dehumidification treatment of the dehumidification tower 100, and after the dehumidification treatment sent from the dehumidification tower 100 by the delivery duct 107. The air is passed through the air heating device 400 by the air blower 403 and heated to be returned to the drying cabinet 900.

In the air heating device 400 of the embodiment of FIG. 3, the heating portion inside the device is a water heat source heat pump type air heater. Specifically, a condenser 402 that acts as a heater of a water heat source heat pump that uses a refrigerant for heat exchange in the chiller 200 is provided inside the main body 401, and the air volume adjustment is performed on the air inlet side to the inside of the main body. wherein it becomes an air blower 403 is provided which can, by passing the portion of the condenser 402 as a heater the air delivered from the removal tower 100, the heating coil of the condenser 402 (not shown) Heat can be heated to a predetermined temperature by the heat exchange action. In the case of the present invention, there is provided a circulation duct 404 for returning a part of the air that has passed through the condenser 402 to the inflow duct 107 upstream from the air blower 403 as shown in the figure. A part of air is circulated so as to reach a predetermined temperature set in advance, and heating can be performed while repeatedly passing through the condenser 402.

  In addition, in order to use the condenser 402 as a water heat source heat pump type heater in the chiller 200 as the air heater, the refrigerant used in the chiller 200 passes through the chiller 200 and then the compressor 230 is used. After being compressed, it is sent to a condenser 402 as a heater in the air heating device 400, where heat is exchanged with air to be heated, and then sent to a condenser 240 as a radiator. It is configured to be circulated and fed into the chilled water machine 200 via an electromagnetic valve 211 and an expansion valve 212.

  The delivery duct 407 from the air heating device 400 is connected to the circulation duct 902 of the drying cabinet 900, and the heated air sent by the delivery duct 407 merges with the circulation air in the circulation duct 902. Then, it is fed out to the inner back side in the warehouse.

  In the figure, reference numeral 905 denotes a temperature sensor for detecting the temperature on the outlet side in the drying cabinet 900, 420 denotes a temperature controller capable of setting the temperature, and 421 denotes an inverter for controlling the drive motor (not shown) of the air blower 403. And a signal determined by the temperature detected on the outlet side of the drying cabinet 900 by the temperature sensor 905 and the preset temperature previously input to the temperature controller 420 is given to the inverter 421, and the control signal from the inverter 421 gives the signal The amount of heat taken from the heating coil of the condenser 402 is changed by controlling the rotation of the air blower 403 to change the amount of blown air, so that the heating temperature can be adjusted to a set temperature. Thereby, the heating air of desired temperature can be obtained.

  According to the dryer having the above-described configuration, in the drying cabinet 900, the air in the cabinet is circulated and blown from the inner back side toward the sending side by the circulation blower 901, and a part of this air is used for flow. It flows into the dehumidification tower 100 through the duct 106, and is dehumidified by contacting with cold water while passing through the dehumidification tower 100 as described above. The low-temperature dehumidified air that has been dehumidified in the dehumidifying tower 100 flows into the air heating device 400 from the air blower 403 through the delivery duct 107. In the air heating device 400, the air passes through a condenser 402 as a heat pump heater, and is heated by a heat exchange action that removes heat from the condenser 402. In particular, a part of the air is circulated through the circulation duct 404 and repeatedly passed through the condenser 402 to be heated to a predetermined temperature set to be suitable for the drying process, for example, about 10 to 28 ° C. Dehumidified air is obtained. The air thus heated is returned to the drying cabinet 900 through the delivery duct 407, merged with the circulating air in the circulation duct 902, and supplied to the inner back side in the cabinet.

  In the drying cabinet 900, the circulating air joined with the dehumidified air as described above is circulated and blown from the inner back side toward the delivery side in the warehouse, and the effect of this circulating ventilation and the low humidity due to the merging of the dehumidified air are sent. Combined with the effect of the conversion, the object to be dried on the drying carriage 903 can be efficiently dehumidified and dried. In particular, this dryer can be suitably used for dehumidification drying treatment of fishery products such as fish, timber, raw noodles, leather, agricultural products and other various articles.

  FIG. 5 is a diagram for explaining the air volume balance during dehumidification drying by the drier of the above embodiment, and the numerical values in parentheses in the figure indicate an example of the air volume ratio of each part. The air volume of the circulating blower 901 of the drying cabinet 900, the air volume of the blower 110 provided in the air flow duct 106 from the drying cabinet 900, and the air volume of the air blower 403 of the air heating device 400 are represented by numerical values in FIG. What is necessary is just to set and implement | achieve such an air volume ratio.

  FIG. 6 shows a schematic configuration of another embodiment of the dryer according to the present invention provided with the cold water dehumidifying device and the air heating device, and FIG. 7 shows an enlarged portion of the same air heating device.

  In the dryer of this embodiment, the configuration excluding the air heating device, for example, the configuration of the dehumidifying tower 100, the chilled water machine 200, and the drying cabinet 900 of the chilled water dehumidifying device is the same as the chilled water dehumidifying device of FIG. Since this embodiment is substantially the same as the embodiment shown in FIG. 3 and the embodiment shown in FIGS. 3 and 4, the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, the air heating device 500 provided in a part of the delivery path by the air delivery duct 107 after the dehumidifying treatment of the dehumidifying tower 100 is heated by kerosene, gas, or A fuel-fired air heating device using biomass or the like is provided. The main body 501 includes an inner cylinder 502 constituting a combustion unit, and an air blower 503 capable of adjusting the air volume on the air inlet side into the main body 501. The air sent from the dehumidification tower 100 is heated to a predetermined temperature by passing through the inner cylinder 502 and then returned to the circulation duct 902 of the drying cabinet 900 by the delivery duct 507. Is provided. A vent hole is formed in the inner cylinder 502 as necessary. In addition to kerosene and gas, plastic, rubber, waste oil, food industrial waste and other combustible industrial waste can be used as the fuel.

In the case of the present invention , as shown in the figure , a circulation duct 504 that branches from the delivery duct 507 and reaches the delivery duct 107 upstream from the air blower 503 is provided, and the air that has passed through the main body 501 is preliminarily provided. A part of air is circulated so as to reach a predetermined temperature that is set, and heating can be performed while repeatedly passing through the main body 501.

  In the figure, reference numeral 505 denotes a combustion burner, which is provided so as to burn a fuel such as kerosene or gas supplied through a fuel pipe 506 and blow a flame into the inner cylinder 502. An electromagnetic valve 508 is provided in the fuel pipe 506 so as to be able to adjust the opening / closing and supply amount for supplying fuel to the burner 505. 520 is a temperature controller capable of setting the temperature, and the electromagnetic wave is detected by a signal determined by a temperature detected by a temperature sensor 905 provided on the outlet side in the drying cabinet 900 and a preset temperature input to the temperature controller 520 in advance. The valve 508 is opened and closed so as to control the fuel supply to the burner 505. Reference numeral 521 denotes an inverter for controlling the drive motor (not shown) of the air blower 503, which receives a signal determined by the set temperature inputted to the temperature controller 520 and sends the signal from the inverter 521 to the drive motor of the air blower 503. A control signal is sent to control the rotation of the air blower 503 so as to change the amount of blown air. That is, by controlling the combustion state of the burner 505 and adjusting the amount of air blown by the air blower 503, it can be heated to a set temperature, particularly using the water heat source heat pump type air heater described above. Heated air that is hotter than the case can be obtained. 509 in the figure is a chimney.

  In the drying process by the dryer of this embodiment, a part of the air in the drying cabinet 900 flows into the dehumidifying tower 100 through the flow duct 106 and is dehumidified by contacting with cold water in the dehumidifying tower 100. At the same time, the low-temperature dehumidified air after the dehumidification treatment is caused to flow into the main body 501 of the air heating device 500 by the air blower 503 through the delivery duct 107, and is heated by fuel burning by the burner 505 in the main body 501. By passing while contacting the inner cylinder 502, it is heated to a predetermined temperature. In particular, a part of the air is circulated by the circulation duct 504 and repeatedly passes through the main body 501 and comes into contact with the inner cylinder 502, thereby being heated to a predetermined temperature set to be suitable for the drying process. Dehumidified air heated to a relatively high temperature of about 50 to 80 ° C. is obtained. The heated air is returned to the drying cabinet 900 through the delivery duct 507, and is combined with the circulating air in the circulation duct 902 and supplied to the inner back side in the cabinet.

  In the drying cabinet 900, the circulating air that merges with the heated dehumidified air is circulated and blown from the inner back side toward the delivery side in the chamber, and the drying object on the drying carriage 903 is efficiently dehumidified. Dried. In particular, this dryer can obtain high-temperature heat-dehumidified air according to the necessity of the drying object in the drying cabinet, so that it is particularly difficult to be affected by the atmospheric temperature and has a drying time. It can be suitably used for shortening, and can be applied to dehumidification drying of various marine products, timber, agricultural products, leather and the like.

  FIG. 8 is a diagram for explaining the air volume balance at the time of dehumidification drying by the dryer of the above embodiment, and the numerical values in parentheses in the same figure show an example of the air volume ratio of each part.

  FIG. 9 shows a case where the dryer of the above-described embodiment, for example, the dryer provided with the fuel-fired air heating device 500 shown in FIG. A tree extraction component recovery tower 600 that cools the air sent from the drying cabinet 900 and condenses and recovers tree extract components (for example, hinokitiol) in the air in a part of the air flow path from to the dehumidification tower 100 Shows an embodiment of a dryer comprising

  In this embodiment, other configurations excluding the components of the tree extraction component recovery tower 600, for example, the configuration of the dehumidifying tower 100 and the water cooler 200 of the cold water dehumidifier, and the configuration of the air heating device 500 and the drying cabinet 900 are described. Since it is substantially the same as the case of the embodiment shown in FIG.

  The tree extract component recovery tower 600 of this embodiment is provided so as to use the cold water of the chiller 200 of the cold water dehumidifier in the air flow path from the drying cabinet 900 to the dehumidification tower 100. It is configured as follows.

  As shown in FIG. 9, the tree extract component recovery tower 600 includes an inner cylinder 602 inside a cylindrical main body 601 that forms a cooling chamber closed vertically, and a dehumidification tower through the cold water pipe 207 from the cold water machine 200. The cold water pipe 604 connected to the cold water pipe 207 is connected to the cold water pipe 604 from the upper and lower sides in the gap 603 between the cylindrical main body 601 and the inner cylinder 602 so that a part of the cold water sent to 100 is used. It is arranged to be spirally wound toward the other side, and is connected to the upper and lower one ends (the lower end in the case of the figure) of the inner cylinder 602. A return pipe 605 for returning cold water to the cold water machine 200 is provided at the other end of the inner cylinder 602. Accordingly, a part of the cold water generated by the cold water machine 200 is circulated and supplied to the spiral portion of the pipe 604 and the inner cylinder 602. 207a shows the latter half part of the cold water pipe 207 reaching the dehumidifying tower 100.

  An upper part of the cylindrical main body 601 is connected to a duct 106 a for flowing air from the inside of the drying cabinet 900 via a blower 606 provided at an entrance to the cylindrical main body 601. In addition, at a position below the inner cylinder 602 in the lower part of the cylindrical main body 601, the air that has passed through the gap 603 in the cylindrical main body 601 is above the liquid level of the water reservoir 105 in the lower part of the dehumidifying tower 100. An inflow duct 106b for inflow into the space is connected. Thereby, by passing the air sent out from the inside of the drying cabinet 900 from the upper part to the lower part in the cylindrical main body 601 while passing the part of the gap 603 in contact with the cold water pipe 604 while cooling, It is configured to be able to condense and extract tree extraction components in the air, and to be configured to send the extracted air to the dehumidification tower 100. Reference numeral 607 denotes a storage tank for recovering a tree extract component dripping from a recovery port 609 provided in the bottom plate 608 of the cylindrical main body 601.

  In the case of FIG. 9, a circulation channel 610 is provided between the upstream duct 106a and the downstream duct 106b from the cylindrical body 601, and the cylindrical body 601 is provided. Part of the air that has passed through 601 is returned to the cylindrical main body 601 and allowed to pass therethrough again, so that the condensation rate of tree extract components such as hinokitiol can be increased.

  In the case of this dryer, the dehumidification drying of the wood is performed in the drying cabinet 900 in the same manner as in the case of the above-described drying machine, and part of the air in the drying cabinet 900 is sent by the flow duct 106a and the blower 606. It is fed into the cylindrical main body 601, passes through the gap 603 between the cylindrical main body 601 and the inner cylinder 602, and is sent to the dehumidifying tower 100. In the gap 603, the cold water pipe 604 through which the cold water generated by the cold water machine 200 flows is arranged in a spiral shape, and the cold water also flows in the inner cylinder 602, so that the air is in the gap 603. While passing through the pipe, the cooling water comes into contact with the cold water pipe 604 and is cooled, and the tree extract components in the air are extracted and collected. The air after the recovery of the tree extract components is sent to the dehumidifying tower 100 and dehumidified in the same manner as described above, then passes through the air heating device 500 and is heated to a predetermined temperature and returned to the drying cabinet 900. Thereby, simultaneously with the dehumidification drying of the wood, the tree extraction component recovery tower 600 can efficiently extract and recover the tree extraction component (such as hinokitiol).

  In addition, also in the case of a dryer provided with the water heating source heat pump type air heating device 400 shown in FIG. 3, a tree extraction component is provided in a part of the air flow path from the drying chamber 900 to the dehumidifying tower 100 as described above. A recovery tower 600 can be provided for implementation.

In each embodiment of the dryer described above, an air heating device 400 of the water heat source heat pump, or shows the case of using the air heating device 500 of the fuel-burning method, an air heating device in燥機of the present invention For example, instead of the fuel-fired air heating device, for example, a steam source (such as a boiler) provided near the dryer or a high-temperature exhaust gas source may be used. It is.

  The cold water machine, cold water type dehumidifier and dryer of the present invention dehumidify and dry fish and other marine products and processed products thereof, agricultural products such as vegetables and fruits, various processed foods such as noodles, timber, leather and other items. Therefore, it can be suitably used for a dryer.

It is a schematic explanatory drawing which shows the 1st Example of the cold water type dehumidification apparatus used for the dryer which concerns on this invention. It is a schematic explanatory drawing which shows the 2nd Example of the cold water type dehumidification apparatus used for the dryer which concerns on this invention. It is the schematic which shows one Example of the dryer which concerns on this invention provided with an air heating apparatus. It is an enlarged view of the air heating apparatus part same as the above. It is explanatory drawing of the air volume balance of a dryer same as the above. It is the schematic which shows the other Example of the dryer which concerns on this invention provided with an air heating apparatus. It is an enlarged view of the air heating apparatus part same as the above. It is explanatory drawing of the air volume balance of a dryer same as the above. It is this schematic which shows the Example of a dryer provided with a tree extraction component collection | recovery tower.

  DESCRIPTION OF SYMBOLS 100; 100-1,100-2 ... Dehumidification tower, 101 ... Cylindrical case, 102 ... Bottom part, 103 ... Filler, 104 ... Injection nozzle, 105 ... Water storage part, 106; 106a, 106b ... Duct for flow, DESCRIPTION OF SYMBOLS 107 ... Delivery duct, 116 ... Flow duct, 200 ... Chiller, 201 ... Cylindrical inner wall, 202 ... Cylindrical inner wall, 203 ... Gap, 204 ... Refrigerant piping, 205 ... Circulating water channel, 206 ... Water circulation pump 207: Cold water pipe 208: Throttle valve 220 ... Temperature controller 221 ... Temperature sensor 222 ... Inverter 230 ... Compressor 240 ... Condenser 300 ... Hot water transfer device 301 ... Tank body 302 ... Pipe 303 ... Submersible pump, 304 ... Level switch, 305 ... Feed pipe, 306 ... Check valve, 400 ... Air heating device, 401 ... Main body, 402 ... Condenser, 4 DESCRIPTION OF SYMBOLS 3 ... Air blower, 404 ... Circulation duct, 407 ... Delivery duct, 420 ... Temperature controller, 421 ... Control inverter, 500 ... Air heating apparatus, 501 ... Main body, 502 ... Inner cylinder, 503 ... Air blower, 504 ... circulation duct, 505 ... combustion burner, 506 ... fuel piping, 507 ... delivery duct, 508 ... solenoid valve, 520 ... temperature controller, 521 ... control inverter, 600 ... tree extraction component recovery tower, 601 ... Cylindrical body, 602 ... Inner cylinder, 603 ... Gap, 604 ... Pipe for cold water, 605 ... Return pipe, 606 ... Blower, 607 ... Storage tank for collecting tree extract components, 608 ... Bottom plate, 609 ... Recovery port 610 ... circulation flow path, 900 ... drying cabinet, 901 ... circulation fan, 902 ... circulation duct, 903 ... drying carriage, 905 ... temperature sensor.

Claims (8)

A double wall structure having a cylindrical inner wall whose upper and lower ends are closed inside a cylindrical outer wall for storing water, and a refrigerant pipe spirals in the gap between the cylindrical inner wall and the cylindrical outer wall. A chiller that winds in a shape and supplies refrigerant for exchanging heat to the pipe, and generates cold water at a predetermined temperature by circulating water from the upper and lower sides through the gap between the inner and outer walls, and an air / A dehumidification tower that generates dehumidified air by pouring cold water from the upper part in the cylindrical case containing the filler for contacting cold water and sending dehumidified air from the lower part to the upper part is installed side by side It was combined to allow out feeding of cold water dividing part moisture towers that will be generated by the cold water machine, further between the removal tower and the water coolers, hot water generated by dehumidification tower once appropriately pooled water coolers Equipped with a cold water dehumidifier equipped with a hot water transfer device A dryer,
A part of the air sent out from the air outlet in the drying cabinet is sent to the lower part of the dehumidifying tower, and the low-temperature air sent out after being dehumidified by the dehumidifying tower is provided in the air sending path from the dehumidifying device. It is connected and configured to pass through an air heating device with a blower and heat it back into the drying cabinet,
The air heating device is on the downstream side of the air blower in the delivery path from the dehumidification tower, and a circulation duct for returning a part of the air that has passed through the air heating device to the delivery route upstream from the air blower. The air passing through the air heating device is circulated and repeatedly passed through the air heating device, thereby heating the air passing through the air heating device to a predetermined temperature and dryer characterized by comprising provided back to the drying chamber. The chilled water machine of the cold water type dehumidifier has a lower end of the cylindrical inner wall closed, sucks water in the vicinity of the closed end inside the cylindrical inner wall, and rotates around the outside of the cylindrical outer wall. A circulation water channel that enters the outer wall of the cylinder and feeds it from the lower outer center of the closed end of the cylindrical inner wall is provided with a water circulation pump, and a water circulation pump is provided in a part of the circulation water channel. by flowing toward the inside of the gap upward with circulating the water circulation passage at a speed, a portion of the cold water circulating, thus provided to send the dehumidifying tower Ri by the waterway branched from the water circulation passage claims Item 4. The dryer according to item 1. The hot water transfer device in the cold water dehumidifier includes a tank body that temporarily stores hot water generated in the dehumidification tower, and a submersible pump that operates by a level switch to send the hot water to the cold water machine when the amount of stored water exceeds a certain level. The dryer according to claim 1 or 2 . As the cold water dehumidifier, cold water fed from the cold water machine is poured from the upper part in the cylindrical case containing the filler, and air to be dehumidified is directed from the lower part to the upper part in the cylindrical case. send two removal tower for generating dehumidified air is coupled mounted in series fashion along the air flow feeding path, the dehumidified air is delivered from the drying chamber to send the sequentially each dehumidifying tower arranged to dehumidify drying machine according to any one of claims 1-3 being. The air heating device provided between the dehumidification tower and the drying chamber is a water heat source heat pump type air heater in which a heating portion inside the device uses a heat exchange refrigerant in the chiller, and the heater It said air blower is provided on the air inlet side of the internal body with a, Rutotomoni the air delivered from the dehumidifying tower is passed through a portion of the heater, for circulating a part of the air that has passed through the circulation duct The dryer according to any one of claims 1 to 4, wherein the dryer is provided so as to be heated to a predetermined temperature and returned to the drying cabinet. The air heating device provided between the dehumidification tower and the drying cabinet is configured such that a heating portion inside the device is a fuel-fired air heating device, and includes an inner cylinder constituting a combustion part inside the main body, air volume adjustable air blower is provided on the air inlet side to, Rutotomoni the air delivered from the dehumidifying tower is passed in contact with the inner cylinder, by a portion of the air passing through the circulation by the circulation duct The dryer according to any one of claims 1 to 4, wherein the dryer is provided so as to be heated to a predetermined temperature and returned to the drying cabinet. The dryer according to any one of claims 1 to 6 , further comprising a drying cabinet for drying wood, in a part of an air flow path from the drying cabinet to a dehumidifying tower, Using a part of the cold water sent from the water cooler to the dehumidification tower, it is equipped with a tree extract component recovery tower that cools the air sent from the drying cabinet and condenses and recovers the tree extract components contained in the air A dryer characterized by that. The tree extraction component recovery tower includes an inner cylinder inside a cylindrical main body forming a cooling chamber, and spirals from one upper and lower side to the other side in a gap between the cylindrical main body and the inner cylinder. A pipe for chilled water that is wound in a shape is continuously provided in the inner cylinder, and a part of the chilled water sent from the chiller is circulated and supplied to the inner cylinder and the pipe, and the drying chamber the air delivered from the inner, by flowing from above and below one side in a gap between the inner tube of the tubular body, according to claim 7 comprising provided to condense the tree extract component in the air recovery The dryer as described in.

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