JP2006317085A - Fluid heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid heating device capable of producing stable steam or superheated steam of high quality by causing no problem such as drying out. <P>SOLUTION: The fluid heating device has a microcomputer 7 capable of independently controlling a current flowing to a first heater 4a and a second heater 4b based on detected temperature from a first temperature detecting means 5 and a second temperature detecting means 6. The respective heaters 4a, 4b can thereby cope with the change of specific heat, heat conduction, or the like of a fluid following a phase change, and the problem caused by drying out or the like can be prevented to efficiently perform the phase change of the fluid. When the fluid is water, for instance, the fluid heating device 1 can prevent the sudden temperature rise of a first duct 3 to thereby produce stable steam of high quality and moreover controlled in temperature. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fluid heating apparatus that heats a fluid such as gas or liquid.

  2. Description of the Related Art Conventionally, a fluid heating apparatus that generates water or superheated steam by passing water through a pipeline heated by a heating coil or the like is known (for example, Patent Document 1). This type of fluid heating apparatus is shown in FIG. The fluid heating device 80 includes a hollow cylindrical pipe 81, a spiral structure 82 that is inserted into the pipe 81 and guides fluid, and a heating coil 83 wound around the outer circumference of the pipe 81. Has been.

The fluid heating device 80 generates superheated steam as follows. That is, first, water, which is a fluid, is supplied to the upper part of the pipe 81 heated by the heating coil 83. Then, the supplied water is guided by the spiral structure 82 and flows from the upper part to the lower part of the pipe 81 (in the direction of the white arrow shown in FIG. 12). Thereby, in the process in which the water which is a fluid flows toward the lower part from the upper part of the pipe line 81, water turns into hot water, produces | generates a vapor | steam, is further heated, and produces | generates a superheated vapor | steam. The generated steam or superheated steam can be taken out from the lower part of the pipe 81.
JP 2004-257695 A

  However, since the pipe 81 described above is entirely heated by the heating coil 83, when the fluid phase change occurs from water to steam or superheated steam, part of the pipe 81 is dried up. A state (dryout) may occur. Since the amount of heat transfer at the location in the pipe 81 where the dryout has occurred decreases rapidly, the temperature of the pipe 81 suddenly rises or the amount of heat transfer from the heating coil 83 decreases sharply. Thus, there is a possibility that only low-quality steam or superheated steam can be generated from the pipe line 81 whose temperature control has become difficult due to dryout.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a problem caused by dryout or the like from occurring so that a high-quality and stable steam or superheated steam can be generated. It is to provide a heating device.

  In order to achieve the above object, the first aspect of the present invention provides a first conduit for passing a fluid such as gas or liquid, a first heater for heating the upstream side of the first conduit, and the first conduit A second heater for heating the downstream side, a first pipe, a holding unit for holding the first heater and the second heater, and a first for detecting the temperature on the upstream side of the first pipe. Based on temperature detection means, second temperature detection means for detecting the temperature downstream of the first pipe, detection temperature of the first temperature detection means and the second temperature detection means, the first heater and And a control means for controlling the second heater.

  According to invention of Claim 1, the heater which heats a 1st pipe line is divided | segmented into two, a 1st heater and a 2nd heater, The temperature of each heater is 1st temperature detection means or 2nd temperature. It is detected by the detection means. And based on the detected temperature of each heater, the control means controls energization to each heater.

  The fluid heating device according to claim 2 is a first conduit that allows fluid such as gas or liquid to pass through, a first heater that heats the upstream side of the first conduit, and a downstream side of the first conduit. A first heater that heats the first pipe, a first holding part that holds the first heater, the first heater, and the first heater, and a first that detects a temperature upstream of the first pipe. A first heating means comprising a temperature detection means and a second temperature detection means for detecting a temperature downstream of the first pipe line, and communicated with the first pipe line and heated by the first heating means. A second pipe for passing the fluid, a third heater for heating the second pipe, a second holding part for holding the second pipe and the third heater, and the second pipe A second heating means comprising a third temperature detecting means for detecting the temperature of the passage; and a temperature detected by the first temperature detecting means to the third temperature detecting means. It has a configuration and a control means for controlling the first heater to said third heater.

  According to invention of Claim 2, the heater which heats a 1st pipe line is divided | segmented into two, a 1st heater and a 2nd heater, The temperature of each heater is 1st temperature detection means or 2nd temperature. It is detected by the detection means. The temperature of the third heater is detected by the third temperature detecting means. And based on the detected temperature of each heater, the control means controls energization to each heater. Further, according to the invention of claim 2, there are two heating means, a first heating means and a second heating means. Thus, for example, when the fluid is water, first, high-quality steam is generated in the first heating means, and the steam generated in the first heating means is further heated while adjusting the temperature in the second heating means. As a result, high-quality and stable superheated steam is generated.

  A fluid heating device according to a third aspect is the fluid heating device according to the second aspect, wherein the second conduit is formed integrally with the first conduit.

  According to the invention of claim 3, in addition to the action of claim 2, the first pipe and the second pipe are integrally formed, whereby a joint or the like is provided between the first pipe and the second pipe. There is no need to provide it. Thereby, the fluid heating device can be configured as an integrated type, and the entire device can be downsized. Moreover, since it is not necessary to provide a joint etc. between a 1st pipe line and a 2nd pipe line, between a 1st heating means and a 2nd heating means can be set to a desired space | interval. For example, by setting the pipe length of the pipe line located between the first heating means and the second heating means to be short, heat radiation from the pipe line located between the first heating means and the second heating means. Therefore, it is possible to prevent the temperature of the fluid passing through the pipe from being lowered. Therefore, the fluid heated by the first heating unit is supplied to the second heating unit while maintaining a high quality state.

  A fluid heating device according to a fourth aspect is the fluid heating device according to the second or third aspect, wherein the second heating means is installed obliquely with respect to the first heating means.

  According to the invention of claim 4, in addition to the action of claim 2 or claim 3, the steam generated in the first heating means is brackish by installing the second heating means obliquely with respect to the first heating means. Separation effect is promoted and high quality steam can be sent to the second heating means. Further, by installing the second heating means obliquely with respect to the first heating means, steam containing moisture generated in the first heating means (also referred to as “wet steam”) or moisture blown up by bumping, It can prevent flowing into the 2nd pipe line of the 2nd heating means.

  The fluid heating device according to claim 5 is the fluid heating device according to claim 2 or 3, wherein the second heating means is provided so as to be positioned horizontally with respect to the first heating means. It has become.

  According to the invention of claim 5, in addition to the action of claim 2 or claim 3, by providing the second heating means so as to be positioned horizontally with respect to the first heating means, the steam generated in the first heating means Has a brackish water separation effect and can send high quality steam to the second heating means. Further, by providing the second heating means so as to be positioned horizontally with respect to the first heating means, steam containing moisture generated by the first heating means (also referred to as “wet steam”) or moisture blown up by bumping However, it can prevent flowing into the 2nd pipe line of the 2nd heating means.

  The fluid heating device according to claim 6 is the fluid heating device according to any one of claims 2 to 5, wherein the fluid is contained in the first pipeline and the second pipeline. It has a structure in which a metal heat transfer member is disposed so that it can be distributed.

  According to the invention of claim 6, in addition to the operation of any one of claims 2 to 5, the heat transfer member is disposed in the first pipe line and the second pipe line, thereby providing fluid and With the increased contact area, the heat from each heater is transferred to the fluid, and the fluid can be heated quickly and efficiently.

  The fluid heating device according to claim 7 is the fluid heating device according to claim 6, wherein the first conduit, the second conduit, the holding member, and the heat transfer member are made of stainless steel, aluminum, or copper. The structure is made of a metal having good thermal conductivity such as iron.

  According to the invention of claim 7, in addition to the action of claim 6, each of the pipes, the holding portion, and the heat transfer member is made of a metal having good thermal conductivity such as stainless steel, aluminum, copper, iron, or the like. Therefore, when the fluid heating device is turned on, the amount of heat from each heater is immediately transferred to the first pipe, the second pipe, the holding member, and the heat transfer member, and heated instantaneously. . Thereby, the heat from each heater is quickly and efficiently transmitted to the fluid passing through each pipeline, and the fluid can be heated quickly and efficiently.

  The fluid heating device according to claim 8 is the fluid heating device according to any one of claims 2 to 7, wherein the third temperature detecting means is disposed near a center of the second pipe line. It has a structure.

  According to the invention of claim 8, in addition to the operation of any one of claims 2 to 7, in the case of the third heater of the second heating means, the temperature detecting means is the center of the second pipe. Placed in. That is, for example, when the fluid supplied from the first heating means to the second heating means is steam, no phase change occurs when changing from steam to superheated steam, so the temperature of the entire second pipe line can be detected. It ’s fine. Thereby, superheated steam can be generated efficiently.

  The fluid heating device according to claim 9 is the fluid heating device according to any one of claims 2 to 8, wherein the outside air as the fluid is at least one of the first pipeline and the second pipeline. It has the structure which has the external air introduction fan introduced into one side.

  According to the invention of claim 9, in addition to the action of any one of claims 2 to 8, the outside air introduction fan is connected to the upstream side of the first pipe, or the first pipe and the first pipe Heated air can be generated by connecting an outside air introduction fan between the two pipes. Note that when air and steam are compared, the thermal conductivity is the same, but since the specific heat of air is about half, air can easily raise its temperature in a shorter time than steam. Further, by arranging a cross pipe or the like between the first pipe line and the second pipe line, hot water, steam or the like is generated from the first pipe line, and heated air or overheat is generated from the second pipe line. Steam can be generated. Thereby, the fluid heating apparatus can selectively generate a heated fluid.

  The fluid heating device according to claim 10 is the fluid heating device according to claim 1, wherein a metal heat transfer member is arranged in the first pipe line so that the fluid can flow therethrough. It has become.

  According to the invention of claim 10, in addition to the action of claim 1, by disposing the heat transfer member in the first pipe line, the heat from each heater is increased in a state where the contact area with the fluid is increased. It is transmitted to the fluid. Thereby, the fluid can be heated quickly and efficiently.

  The fluid heating device according to claim 11 is the fluid heating device according to claim 10, wherein the holding pipe and the heat transfer member are in thermal conductivity of stainless steel, aluminum, copper, iron or the like in the first conduit. Has a structure made of a good metal.

  According to the eleventh aspect of the invention, in addition to the action of the tenth aspect, the first conduit, the holding portion, and the heat transfer member are made of a metal having good thermal conductivity such as stainless steel, aluminum, copper, and iron. Thus, when the switch of the fluid heating device is turned on, the amount of heat from each heater is immediately transferred to the first pipe line, the holding member, and the heat transfer member, and heated instantaneously. Thereby, the heat from each heater is quickly and efficiently transmitted to the fluid passing through the pipe line, and the fluid can be heated quickly and efficiently.

  The fluid heating device according to claim 12 is a fluid heating device according to claim 1 or 10, wherein the fluid heating device has an outside air introduction fan for introducing outside air as the fluid into at least one of the pipes. ing.

  According to the invention of claim 12, in addition to the action of claim 1 or claim 10, the heated air can be generated by connecting the outside air introduction fan to the upstream side of the first pipe line. Note that when air and steam are compared, the thermal conductivity is the same, but since the specific heat of air is about half, air can easily raise its temperature in a shorter time than steam.

  The fluid heating device according to claim 13 is the fluid heating device according to claim 6 or 10, wherein the heat transfer member is a sintered metal, a foam metal, a metal plate, a metal steel ball, or a metal wool. The structure is at least one.

  According to the invention of claim 13, in addition to the action of claim 6 or claim 10, the heat transfer member made of sintered metal, foam metal, metal plate, metal steel ball, metal wool, etc. having a large heat capacity is provided. Since the heat conductivity is good, the fluid can be efficiently heated when directly exchanging heat with the fluid, and the desired fluid can be easily obtained in a short time.

  The fluid heating device according to claim 14 is the fluid heating device according to any one of claims 1 to 13, wherein a capacity of the first heater is larger than a capacity of the second heater. It has a structure.

  According to the invention of claim 14, in addition to the action of any one of claims 1 to 13, for example, in order to perform a phase change that generates steam from water as a fluid, a large sensible heat + latent heat is required. The amount of heat is required. At this time, by increasing the capacity of the first heater that heats the upstream side of the first pipe to which low-temperature water is supplied, the phase change from water to steam can be promoted efficiently, and in a short time. Steam can be generated.

  The fluid heating device according to claim 15 is the fluid heating device according to any one of claims 1 to 14, wherein the first temperature detection means is disposed in the vicinity of the fluid inlet of the first pipe line. In addition, the second temperature detecting means is arranged in the vicinity of the fluid outlet of the first pipeline.

  According to the invention of claim 15, in addition to the action of any one of claims 1 to 14, when the heater is divided into two parts, a first heater and a second heater, The first temperature detection means is disposed in the vicinity of the fluid inlet of the first pipeline, and the second temperature detection means is installed in the vicinity of the fluid outlet of the first pipeline. Thereby, since each temperature of a 1st heater and a 2nd heater can be controlled independently, each heater can be made to respond to changes, such as a specific heat and heat conduction of a fluid accompanying a phase change, and fluid Phase change can be performed.

  A fluid heating device according to claim 16 is a fluid heating device according to any one of claims 1 to 15, comprising a T-tube having one fluid inlet and two fluid outlets, One of the fluid outlets is connected to the fluid inlet of the first duct, and the other of the fluid outlets is connected to an electromagnetic valve.

  According to the sixteenth aspect of the invention, in addition to the operation of any one of the first to fifteenth aspects, the fluid heating device before the stop applies pressure by a water supply pump or the like to cause the fluid to flow in the first pipe line. Supplying to the entrance. When the fluid heating device is stopped, the supply of fluid from one of the fluid outlets of the T-shaped tube to the fluid inlet of the first conduit of the fluid heating device is also stopped. At the same time as the supply of the fluid is stopped, the solenoid valve connected to the other fluid outlet of the T-shaped tube is opened. That is, by opening the T-shaped solenoid valve simultaneously with stopping the fluid heating device, the residual pressure of the water supply pump is released from the solenoid valve, so that the pressure of the fluid heating device as a whole decreases. Thereby, since it can prevent reliably that a fluid is supplied to the fluid inlet_port | entrance of a 1st pipe line simultaneously with stopping a fluid heating apparatus, the production | generation of a vapor | steam or superheated steam can be stopped instantaneously.

  The fluid heating device according to claim 17 is the fluid heating device according to any one of claims 1 to 16, wherein an outer periphery of the holding portion is covered with a heat insulating material. .

  According to the invention of claim 17, in addition to the action of any one of claims 1 to 16, the thermal efficiency in the apparatus can be increased by covering the outer periphery of the holding portion with the heat insulating material.

  According to the first aspect of the present invention, the control means independently controls energization to the first heater or the second heater based on the detected temperature from the first temperature detector or the second temperature detector. Can do. This allows each heater to respond to changes in the specific heat, heat conduction, etc. of the fluid that accompanies the phase change, so that problems such as dryout can be prevented and the fluid phase can be changed efficiently. it can. For example, when the fluid is water, the fluid heating device of the present invention can prevent a rapid temperature rise in the first pipe line, so that the quality is high and stable, and temperature-controlled steam can be generated. it can.

  According to the invention of claim 2, the control means independently controls energization to the first heater and the second heater based on the detected temperature from the first temperature detector and the second temperature detector. Can do. This allows each heater to respond to changes in the specific heat, heat conduction, etc. of the fluid that accompanies the phase change, so that problems such as dryout can be prevented and the fluid phase can be changed efficiently. it can. For example, when the fluid is water, the fluid heating device of the present invention can prevent a rapid temperature rise in the first pipe line, so that the quality is high and stable, and temperature-controlled steam can be generated. it can. Further, when the fluid is water, first, steam is generated in the first heating means, and this steam is generated by the second heating means having the third heater whose temperature is controlled by the temperature detected by the third temperature detecting means. By further heating while adjusting the temperature, it is possible to generate superheated steam that is stable with high quality and temperature controlled.

  FIG. 1 or FIG. 2 shows a first embodiment of the present invention, FIG. 1 is a side sectional view of a fluid heating apparatus according to the first embodiment of the present invention, and FIG. 2 relates to the first embodiment of the present invention. The plane sectional view of an AA 'direction of a fluid heating device is shown.

  First, the entire structure of the fluid heating apparatus 1 will be described with reference to FIGS. 1 and 2. The fluid heating apparatus 1 includes a holding unit 2, a first pipe 3, a heater 4, a first temperature detection unit 5, a second temperature detection unit 6, and a microcomputer that is a control unit (hereinafter referred to as a microcomputer). .) 7.

  The holding unit 2 is made of an aluminum body having a vertically long rectangular parallelepiped shape, and holds the first conduit 3, the first heater 4a, and the second heater 4b as shown in FIGS. . Moreover, the holding | maintenance part 2 has the insertion hole 2a so that the 1st temperature detection means 5 and the 2nd temperature detection means 6 can be inserted and hold | maintained. Furthermore, the outer periphery of the holding part 2 is covered with a heat insulating material (not shown).

  The first conduit 3 is formed of a hollow cylindrical aluminum body, and the fluid inlet on the upstream 3a side of the first conduit 3 is connected to a water tank 11 via a water supply pump 10 as shown in FIG. ing. The water tank 11 stores water that is a fluid. Moreover, as shown in FIG.1 and FIG.2, the heat transfer member 8 is arrange | positioned in the 1st pipe line 3. As shown in FIG. The heat transfer member 8 is a member in which, for example, small balls made of SUS (Steel Use Stainless) are arranged in the first pipe 3, and water can be circulated in the first pipe 3.

  The heater 4 includes a first heater 4 a disposed on the upstream 3 a side of the first pipeline 3 and a second heater 4 b disposed on the downstream 3 b side of the first pipeline 3. Each of the heaters 4a and 4b uses a sheathed heater. The capacity of the first heater 4a is set larger than the capacity of the second heater 4b.

  The first temperature detection means 5 is arranged on the upstream 3 a side of the first pipe line 3, and the second temperature detection means 6 is arranged on the downstream 3 b side of the first pipe line 3. Here, the downstream 3b side of the first pipe line 3 where the second temperature detecting means 6 is arranged is located near the outlet located in the holding unit 2 and immediately before the fluid is discharged, and the outside of the holding unit 2 That is, it may be in the vicinity of the outlet immediately after the fluid is discharged located in the heat insulating material. The downstream 3b side of the first pipe line 3 where the second temperature detection means 6 of the present embodiment is disposed is the vicinity of the outlet located in the holding unit 2 and immediately before the fluid is discharged.

  As shown in FIG. 2, the second temperature detecting means 6 is inserted into the insertion hole 2 a of the holding portion 2 toward the first pipe 3. Similarly, the first temperature detection means 5 is also inserted into an insertion hole provided on the upstream 3 a side of the first pipeline 3 of the holding portion 2 toward the first pipeline 3. By arranging the temperature detection means 5 and 6 in this way, the temperatures on the upstream 3a side and the downstream 3b side of the first pipe 3 can be detected independently.

  The microcomputer 7 is inputted with detected temperatures from the temperature detecting means 5 and 6 and controls energization to the heaters 4a and 4b based on these input signals. .

  The operation of the fluid heating apparatus 1 configured as described above will be described.

  First, the fluid heating apparatus 1 supplies a certain amount of water from the water tank 11 to the fluid inlet on the upstream 3 a side of the first pipeline 3 by the water supply pump 10. Before or at the same time as the supply of water is started, heating of the heaters 4a and 4b is started. At this time, the temperature of each heater 4a, 4b is detected by each temperature detecting means 5, 6. And based on this detected temperature, the microcomputer 7 controls energization to each heater 4a, 4b.

  The supplied water flows from the fluid inlet on the upstream 3a side of the first pipeline 3 toward the fluid outlet on the downstream 3b side of the first pipeline 3 (in the direction of the white arrow shown in FIG. 1). Pass through 3 At this time, since the heat transfer member 8 is disposed in the first pipe line 3 heated by the heaters 4a and 4b, it comes into contact with the supplied water in a large area. That is, since the heat from each heater is transmitted to water in a state where the contact area with water is increased, the heat from each heater 4a, 4b can be transmitted to the fluid more quickly and efficiently.

  The water heated on the upstream 3a side of the first pipe line 3 undergoes a phase change into steam, and the downstream 3b of the first pipe line 3 provided with the heat transfer member 8 heated by the second heater 4b. Head to the side. By contacting the heat transfer member 8, the water heated on the upstream 3 a side of the first pipe 3 is further heated. As a result, the water supplied to the fluid inlet on the upstream 3 a side of the first pipeline 3 is heated on the upstream 3 a side of the first pipeline 3 and then further heated on the downstream 3 b side of the first pipeline 3. To produce steam.

  According to the fluid heating apparatus 1 of the present embodiment, the microcomputer 7 energizes the first heater 4a and the second heater 4b based on the detected temperatures from the first temperature detector 5 and the second temperature detector 6. Can be controlled independently. This allows each heater 4a, 4b to respond to changes in the specific heat, heat conduction, etc. of the fluid that accompanies the phase change, thus preventing problems due to dryout, etc., and efficiently changing the phase of the fluid. It can be carried out. Further, by controlling the heaters 4a and 4b, the fluid heating device 1 can prevent a rapid temperature rise of the first pipe 3, so that the quality is high and stable, and further the temperature-controlled steam is controlled. Can be generated.

  Moreover, according to the fluid heating apparatus 1 which concerns on this embodiment, the thermal efficiency of the fluid heating apparatus 1 can be improved by covering the outer periphery of the holding | maintenance part 2 with a heat insulating material (not shown).

  Moreover, since the contact area with the water which is a fluid increases by disposing the heat transfer member 8 made of a SUS sphere in the first pipe 3, the heat from each of the heaters 4a and 4b is transferred to the water. Heat transfer is facilitated and steam generation is promoted.

  Moreover, since the holding | maintenance part 2, the 1st pipe line 3, and the heat-transfer member 8 are comprised with the metal with favorable heat conductivity, if the switch of the fluid heating apparatus 1 is turned on, each heater 4a, 4b The amount of heat is transferred immediately and heated instantaneously. Thereby, the heat from each heater 4a, 4b can be quickly and efficiently transmitted to the water (steam) passing through the first pipe 3, and the water (steam) can be heated quickly and efficiently.

  Further, by setting the capacity of the first heater 4a to be larger than the capacity of the second heater 4b, when performing a phase change that requires a large amount of heat of sensible heat and latent heat, that is, generating steam from water. In this case, the phase change from water to steam can be promoted efficiently, so that steam can be generated in a short time.

  Further, by providing the temperature detecting means 5 and 6 for the heaters 4a and 4b, the temperatures of the heaters 4a and 4b can be detected independently. And based on each detected temperature, since it is possible to make the temperature of each heater 4a, 4b respond | correspond to the change of the specific heat and heat conduction accompanying the phase change of water, the phase change of the water which is a fluid efficiently is performed. Can do.

  3 and 4 show a second embodiment of the present invention, FIG. 3 is a side sectional view of a fluid heating apparatus according to the second embodiment of the present invention, and FIG. 4 relates to the second embodiment of the present invention. The plane sectional view of the EE 'direction of a fluid heating device is shown. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the fluid heating device 1 according to the first embodiment, only the first conduit 3 passes through the water that is the fluid, but the fluid heating device 20 according to the present embodiment further includes a pipe as shown in FIG. The difference is that the second pipe 21 is provided. Although the said 1st Embodiment demonstrated the case where a vapor | steam was produced | generated from the fluid heating apparatus 1, superheated vapor | steam can be produced | generated by raising the heat transfer amount of each heater 4a, 4b. However, in order to generate superheated steam from the fluid heating device 1, the superheated steam is unstable because the device is increased in size or because the flow path of the first pipe line 3 is short and thus the phase change cannot be sufficiently promoted. May be generated. Therefore, the fluid heating device 20 of the present embodiment generates stable and high-quality superheated steam by comprising two stages, a stage for generating steam and a stage for generating superheated steam using this steam. With the goal.

  As shown in FIG. 3, the fluid heating device 20 of the present embodiment uses the heating unit having the first pipeline 3 as the first heating unit C, and the heating unit having the second pipeline 21 as the second heating unit D. Consists mainly of. Since the first heating unit C has been described in the first embodiment, a description thereof will be omitted.

  The second heating unit D includes a second pipe 21, a holding unit 23, a third heater 24, a third temperature detection unit 25, a microcomputer (hereinafter referred to as a microcomputer) 7 as a control unit, and It is composed of

  The second pipeline 21 is made of a hollow cylindrical aluminum body, and the upstream side of the second pipeline 21 is connected to the downstream 3 b of the first pipeline 3 via a joint 26. A heat transfer member 27 is disposed in the second pipe line 21. The heat transfer member 27 is a member in which, for example, SUS-made spheres are arranged in the second pipeline 21, and the water in the second pipeline 21 can be circulated.

  The holding part 23 is made of an aluminum body having a vertically long rectangular parallelepiped shape, and holds the second duct 21 and the third heater 24 as shown in FIGS. 3 and 4. The third heater 24 uses a sheathed heater. Further, as shown in FIG. 4, the holding portion 23 has an insertion hole 23 a so that the third temperature detection means 25 can be inserted and held. Furthermore, the outer periphery of the holding part 23 is covered with a heat insulating material (not shown).

  The third temperature detection means 25 is disposed near the center of the second pipeline 21. As a reason for disposing near the center of the second pipeline 21, the vapor supplied from the first heating means C to the second heating means D does not cause a phase change even if it is further heated in the second heating means D. What is necessary is just to detect the temperature of the 2nd pipe line 21 whole. Further, the third temperature detecting means 25 is inserted into the insertion hole 23a of the holding portion 23 as shown in FIG. By arranging the third temperature detection means 25 in this way, the temperature of the second pipeline 21 can be detected.

  The microcomputer 7 receives the detected temperature from the third temperature detecting means 25, and controls the energization of the heaters 4a, 4b, 24 based on these input signals. Yes.

  The operation of the fluid heating device 20 configured as described above will be described.

  First, a certain amount of water is supplied from the water tank 11 to the fluid inlet on the upstream 3 a side of the first pipeline 3 by the water supply pump 10. At the same time as the supply of water is started, heating of the heaters 4a, 4b, and 24 is started. At this time, the temperature of each heater 4a, 4b, 24 is detected by each temperature detection means 5, 6, 25. Based on this detected temperature, the microcomputer 7 controls energization to each heater 4a, 4b, 24. Next, the fluid heating device 20 generates steam in the first heating unit C as described in the first embodiment.

  The steam generated in the first heating unit C passes through the joint 26 and is supplied upstream of the second pipeline 21 of the second heating means D. And the vapor | steam supplied upstream of the 2nd pipe line 21 moves toward the downstream of the 2nd pipe line 21 (direction of the white arrow shown in FIG. 3). In this moving process, the steam is further heated while adjusting the temperature by the third heater 24 to generate superheated steam.

  According to the fluid heating apparatus 1 according to the present embodiment, when the fluid is water, first, steam is generated in the first heating unit C, and the temperature of the steam is controlled by the detected temperature of the third temperature detecting means 25. Further heating is performed by the second heating means D having the third heater 24, so that high quality and stable superheated steam whose temperature is controlled can be generated.

  Moreover, according to the fluid heating apparatus 20 according to the present embodiment, the thermal efficiency of the fluid heating apparatus 20 is covered by covering the outer periphery of the holding part 23 of the first heating part C and the second heating means D with a heat insulating material (not shown). Can be increased.

  Further, by arranging the heat transfer member 27 made of SUS sphere in the second pipe line 21, the contact area with the steam which is a fluid increases, so that the heat from the third heater 24 is transferred to the steam. This facilitates the generation of superheated steam.

  Moreover, since the holding | maintenance parts 2 and 23, the 1st pipe line 3, the 2nd pipe line 21, and the heat-transfer members 8 and 27 are comprised with the metal with favorable heat conductivity, the switch of the fluid heating apparatus 1 is set. When turned on, the amount of heat from each of the heaters 4a, 4b, and 24 is immediately transferred and heated instantaneously. Thereby, the heat from each heater 4a, 4b, 24 is quickly and efficiently transmitted to the water or steam passing through the first pipe 3 and the second pipe 21, and the water or steam is heated quickly and efficiently. can do.

  Furthermore, the temperature of the third heater 24 can be detected independently by providing the third temperature detector 25 with respect to the third heater 24. And based on this detected temperature, it is possible to correspond to the process of changing the temperature of the third heater 24 from steam to superheated steam. Other configurations and operations are the same as those in the first embodiment.

  FIG. 5 shows a third embodiment of the present invention, and shows a side sectional view of a fluid heating apparatus according to the third embodiment of the present invention. Note that the same components as those of the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The second pipe line 21 of the second embodiment is connected to the first pipe line 3 via a joint 26, but the fluid heating device 30 of the present embodiment is configured as shown in FIG. The difference is that the first conduit 3 and the second conduit 21 described in the embodiment are formed by a conduit 31 formed integrally.

  Since the operation of the fluid heating device 30 configured as described above when generating superheated steam is the same as that of the second embodiment, description thereof is omitted.

  According to the present embodiment, since the fluid heating device 30 includes the pipe line 31, it is not necessary to provide the joint 26 described in the second embodiment. Thereby, the fluid heating device 30 can be configured as an integrated type, and the fluid heating device 30 as a whole can be downsized.

  Moreover, since it is not necessary to provide a joint etc. between the 1st pipe line 3 and the 2nd pipe line 21, between the 1st heating part C and the 2nd heating part D can be set to a desired space | interval. In this embodiment, since the heat radiation from the pipe line 31 is suppressed by setting the pipe line length of the pipe line 31 positioned between the first heating part C and the second heating part D short, this pipe It can prevent that the temperature of the vapor | steam which passes the inside of the path 31 falls. Therefore, the steam heated by the first heating unit C is supplied to the second heating unit D while maintaining a high quality state. Other configurations and operations are the same as those in the second embodiment.

  FIG. 6 shows a fourth embodiment of the present invention, and shows a side sectional view of a fluid heating apparatus according to the fourth embodiment of the present invention. Note that the same components as those in the third embodiment are denoted by the same reference numerals, and description thereof is omitted.

  Although the pipe line 31 of the third embodiment is formed by integrally forming the first pipe line 3 and the second pipe line 21 described in the third embodiment, the fluid heating device 40 of the present embodiment is As shown in FIG. 6, the second heating part D is different from the first heating part C in that the pipe 41 is refracted.

  Since the operation of the fluid heating device 40 configured as described above when generating superheated steam is the same as that of the third embodiment, description thereof is omitted.

  According to the fluid heating device 40 of the present embodiment, the second heating unit D is installed obliquely with respect to the first heating unit C, thereby promoting the brackish water separation effect of the steam generated in the first heating unit C. High steam can be sent to the second pipeline 21 of the second heating part D. In addition, by installing the second heating part D obliquely with respect to the first heating part C, it was blown up by steam containing moisture generated in the first heating part C (also referred to as “wet steam”) or bumping. It is possible to prevent moisture from flowing into the second pipeline 21 of the second heating unit D. Other configurations and operations are the same as those in the third embodiment.

  FIG. 7 shows a fifth embodiment of the present invention, and shows a side sectional view of a fluid heating apparatus according to the fifth embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the fluid heating device 1 of the first embodiment, the fluid inlet on the upstream 3a side of the first pipe 3 is connected to the water tank 11 via the water supply pump 10, but the fluid heating device 50 of the present embodiment is illustrated in FIG. 7, the difference is that a T-shaped pipe 51 is provided between the fluid inlet on the upstream 3 a side of the first pipe 3 and the water supply pump 10.

  The T-tube 51 has one fluid inlet and two fluid outlets. The fluid inlet of the T-shaped pipe 51 is connected to the water tank 11 through the check valve 52 and the water supply pump 10. Further, one fluid outlet of the T-shaped pipe 51 is connected to a fluid inlet on the upstream 3a side of the first conduit 3, and an electromagnetic valve 53 is connected to the other fluid outlet.

  One of the solenoid valves 53 is connected to the T-shaped tube 51, and the other is connected to the water tank 11 via a conduit 54.

  The operation of the fluid heating device 50 configured as described above will be described.

  First, the fluid heating device 50 supplies a certain amount of water from the water tank 11 to the fluid inlet on the upstream 3 a side of the first pipeline 3 by the water supply pump 10. And a vapor | steam is produced | generated similarly to the fluid heating apparatus 1 of the said 1st Embodiment.

  At this time, the fluid heating device 50 before stopping the device applies pressure by the water supply pump 10 to supply water, which is a fluid, to the fluid inlet on the upstream 3a side of the first pipeline 3. When the fluid heating device 50 is stopped, the supply of water from one fluid outlet of the T-shaped tube 51 to the fluid inlet on the upstream 3a side of the first pipe 3 is stopped. At the same time as the supply of water is stopped, the electromagnetic valve 53 connected to the other fluid outlet of the T-shaped tube 51 is opened. That is, when the fluid heating device 50 is stopped and the electromagnetic valve 53 of the T-shaped tube 51 is opened at the same time, the residual pressure of the feed water pump 10 is released from the electromagnetic valve 53, so that the pressure of the fluid heating device 50 as a whole decreases.

  Further, the water that has passed through the electromagnetic valve 53 after opening the electromagnetic valve 53 passes through the pipe 54 and is stored in the water tank 11.

  According to the present embodiment, at the same time when the fluid heating device 50 is stopped, the solenoid valve 53 connected to the T-shaped pipe 51 is opened, so that the fluid heating device 50 is stopped and at the same time the fluid inlet of the first pipe line 3. It is possible to reliably prevent water from being supplied to the water. Thereby, the fluid heating apparatus 50 can stop the production | generation of a vapor | steam instantly. In addition, since the water that has passed through the electromagnetic valve 53 after opening the electromagnetic valve 53 is stored in the water tank 11, the water that has not been heated can be reused without being wasted. Furthermore, the fluid heating device 50 has the check valve 52, thereby preventing a back flow from the T-shaped tube 51 to the water supply pump 10 when the electromagnetic valve 53 is opened. Other configurations and operations are the same as those in the first embodiment.

  FIG. 8 shows a sixth embodiment of the present invention, and shows a side sectional view of a fluid heating apparatus according to the sixth embodiment of the present invention. Note that the same components as those in the fifth embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the fifth embodiment, the electromagnetic valve 53 is connected to the other fluid outlet of the T-shaped tube 51. However, as shown in FIG. 8, the fluid heating device 60 of the present embodiment uses the other fluid of the T-shaped tube 51. The difference is that an outside air introduction fan 61 is provided at the outlet.

  The fluid heating device 60 configured as described above arbitrarily selects one of the water supplied from the water tank 11 and the outside air from the outside air introduction fan 61 as the fluid to be supplied to the upstream 3 a side of the first pipe 3. Thus, steam or heated air can be generated. Here, when air and steam are compared, the thermal conductivity is the same, but since the specific heat is about half, air can raise the temperature in a shorter time and more easily than steam.

  According to the fluid heating device 60 of the present embodiment, not only steam but also heated air can be generated. Other configurations and operations are the same as those in the fifth embodiment.

  In the first embodiment, the fluid heating apparatus 1 that generates steam has been described. However, the superheated steam may be generated by setting the set temperatures of the heaters 4a and 4b high.

  Moreover, in the said 4th Embodiment, although the 2nd heating part D was installed diagonally with respect to the 1st heating part C, if the brackish water separation effect can be promoted, it will not restrict to this. For example, like the fluid heating device 65 shown in FIG. 9, the first heating unit C and the second heating unit D may be provided so as to be positioned horizontally via the pipeline 66. Other configurations and operations are the same as those in the fourth embodiment.

  In the fifth embodiment, the generation of steam is stopped instantaneously. However, the generation of superheated steam can also be stopped instantaneously. For example, as in the fourth embodiment, even in the fluid heating device 40 including the first heating unit C and the second heating unit D, the fifth heating unit 40 may be disposed on the upstream 3a side of the first pipeline 3 with the fifth heating unit 40. If the T-shaped tube 51, the electromagnetic valve 53, and the check valve 52 similar to those in the embodiment are provided, the generation of superheated steam can be stopped instantaneously.

  In the sixth embodiment, generation of steam or heated air has been described. However, superheated steam or heated air can be generated. For example, as in the fourth embodiment, even in the fluid heating device 40 configured by the first heating unit C and the second heating unit D, the sixth heating channel is disposed on the upstream 3a side of the first pipeline 3. If the T-tube 51 and the outside air introduction fan 61 are provided as in the embodiment, it is possible to generate not only superheated steam but also heated air. Further, by connecting an outside air introduction fan 61 between the first pipe line 3 and the second pipe line 21, heated air can be generated. Furthermore, by arranging a cross pipe (not shown) between the first pipe line 3 and the second pipe line 21, hot water, steam or the like is generated from the first pipe line 3, and the second pipe line Heated air and superheated steam can be generated from 21, and a heated fluid can be selectively generated.

  In the first embodiment, the fifth embodiment, and the sixth embodiment, the second temperature detecting means 6 of the fluid heating devices 1, 50, 60 is located in the holding unit 2 and immediately before the fluid is discharged. Although it arrange | positions in the downstream 3b side of the 1st pipe line 3 which is the exit vicinity of this, it is not restricted to this. For example, like the fluid heating device 70 shown in FIG. 10, the downstream 3b side of the first pipe line 3 is located outside the holding unit 2, that is, in the heat insulating material (not shown) and in the vicinity of the outlet immediately after the fluid is discharged. The second temperature detecting means 6 may be disposed in the middle. By arranging the second temperature detection means 6 in this way, the temperature of the steam immediately after generation is detected, and the microcomputer 7 can control the energization of the heaters 4a and 4b based on the detected temperature.

  Similarly, in the previous second embodiment to the fourth embodiment, the third temperature detecting means 25 of the fluid heating devices 20, 30, 40 is disposed near the center of the second pipe 21, but this Not exclusively. For example, you may arrange | position the 3rd temperature detection means 25 in the location which can detect the temperature of the produced | generated superheated steam like the fluid heating apparatus 71 shown in FIG. By arranging the third temperature detecting means 25 in this way, the temperature of the generated superheated steam is detected, and the microcomputer 7 can control the energization to the third heater 24 based on this detected temperature.

  In the first to sixth embodiments, the heat transfer members 8 and 27 are SUS balls. However, the heat transfer members 8 and 27 are not limited to this as long as they can transfer heat to a fluid. , At least one of sintered metal, foam metal, metal plate, metal steel ball, or metal wool.

  Further, in the previous first embodiment to the sixth embodiment, the first conduit 3, the second conduit 21, and the holding portion 23 are made of aluminum, and the heat transfer members 8 and 27 are made of stainless steel. It is not restricted to this, What is necessary is just to be comprised with metal with favorable heat conductivity, such as stainless steel, aluminum, copper, and iron.

Side surface sectional drawing of the fluid heating apparatus which concerns on 1st Embodiment of this invention. Plan sectional drawing of the A-A 'direction of the fluid heating apparatus which concerns on 1st Embodiment. Side surface sectional drawing of the fluid heating apparatus which concerns on 2nd Embodiment of this invention. Plan sectional drawing of the E-E 'direction of the fluid heating apparatus which concerns on 2nd Embodiment. Side surface sectional drawing of the fluid heating apparatus which concerns on 3rd Embodiment of this invention. Side surface sectional drawing of the fluid heating apparatus which concerns on 4th Embodiment of this invention. Side surface sectional drawing of the fluid heating apparatus which concerns on 5th Embodiment of this invention. Side surface sectional drawing of the fluid heating apparatus which concerns on 6th Embodiment of this invention. Side surface sectional drawing which shows another example of the fluid heating apparatus which concerns on 4th Embodiment of this invention. Side surface sectional drawing which shows another example of the fluid heating apparatus which concerns on 1st Embodiment of this invention. Side surface sectional drawing which shows another example of the fluid heating apparatus which concerns on 2nd Embodiment of this invention. Schematic front view according to a conventional example of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Fluid heating apparatus, 2 ... Holding part, 3 ... 1st pipe line, 4 ... Heater, 5 ... 1st temperature detection means, 6 ... 2nd temperature detection means, 7 ... Microcomputer, 8 ... Heat transfer member, 10 ... water supply pump, 11 ... water tank.

Claims (17)

A first conduit for passing a fluid such as gas or liquid;
A first heater for heating the upstream side of the first conduit;
A second heater for heating the downstream side of the first conduit;
A holding portion for holding the first pipe line, the first heater, and the second heater;
First temperature detecting means for detecting a temperature upstream of the first pipe line;
Second temperature detection means for detecting the temperature downstream of the first pipe line;
A fluid heating apparatus comprising: control means for controlling the first heater and the second heater based on the detected temperatures of the first temperature detecting means and the second temperature detecting means. A first conduit for passing a fluid such as gas or liquid; a first heater for heating the upstream side of the first conduit; a second heater for heating the downstream side of the first conduit; 1 pipe, a 1st holding part holding the 1st heater, and the 2nd heater, the 1st temperature detection means which detects the temperature of the upstream of the 1st pipe, and the 1st pipe A first heating means comprising: a second temperature detection means for detecting a temperature on the downstream side;
A second conduit that communicates with the first conduit and passes the fluid heated by the first heating means; a third heater that heats the second conduit; the second conduit and the second conduit; A second heating unit comprising: a second holding unit that holds the three heaters; and a third temperature detecting unit that detects the temperature of the second pipe line;
A fluid heating apparatus comprising: control means for controlling the first heater to the third heater based on the detected temperature of the first temperature detector to the third temperature detector. The fluid heating device according to claim 2, wherein the second pipe is formed integrally with the first pipe. The fluid heating apparatus according to claim 2 or 3, wherein the second heating means is installed obliquely with respect to the first heating means. The fluid heating apparatus according to claim 2, wherein the second heating unit is provided so as to be positioned horizontally with respect to the first heating unit. The metal heat transfer member is disposed in the first pipe line and the second pipe line so that the fluid can flow therethrough. The fluid heating apparatus according to Item. The said 1st pipe line, the said 2nd pipe line, the said holding | maintenance part, and the said heat-transfer member are comprised by the metal with favorable heat conductivity, such as stainless steel, aluminum, copper, and iron. 6. The fluid heating apparatus according to 6. The fluid heating device according to any one of claims 2 to 7, wherein the third temperature detection unit is disposed near a center of the second pipe line. The fluid heating according to any one of claims 2 to 8, further comprising an outside air introduction fan for introducing outside air as the fluid into at least one of the first pipe line and the second pipe line. apparatus. The fluid heating device according to claim 1, wherein a metal heat transfer member is disposed in the first conduit so that the fluid can flow therethrough. The fluid heating device according to claim 10, wherein the first conduit, the holding portion, and the heat transfer member are made of a metal having good thermal conductivity, such as stainless steel, aluminum, copper, and iron. . The fluid heating apparatus according to claim 1, further comprising an outside air introduction fan that introduces outside air, which is the fluid, into the first pipe line. The fluid heating device according to claim 6 or 10, wherein the heat transfer member is at least one of sintered metal, foam metal, metal plate, metal steel ball, or metal wool. The fluid heating device according to any one of claims 1 to 13, wherein a capacity of the first heater is larger than a capacity of the second heater. The first temperature detection means is disposed in the vicinity of the fluid inlet of the first pipeline, and the second temperature detection means is disposed in the vicinity of the fluid outlet of the first pipeline. The fluid heating apparatus according to any one of claims 1 to 14. A T-tube having one fluid inlet and two fluid outlets is provided, one of the fluid outlets is connected to the fluid inlet of the first conduit and the other of the fluid outlets is connected to a solenoid valve. The fluid heating apparatus according to any one of claims 1 to 15, wherein The fluid heating device according to any one of claims 1 to 16, wherein an outer periphery of the holding portion is covered with a heat insulating material.

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