JPH1183363A - Heat exchanger and method for heat exchanging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for heat exchanging, and a heat exchanger to be executed by low-cost facility expenses and operation expenses by heat exchanging and filtering fluid, by filtering material and operating power of minimum limits, and uniformly cleaning the material without unevenness. SOLUTION: A heat exchanger 1 for heat exchanging between two or more fluids comprises a substantially cylindrical fluid flowable container 2 rotatably arranged in a circumferential direction with an axial center as a center in a separate state to feed two ore more fluids GF, BF in the circumferential direction in the separate state, and a rotary driving means 3 for rotating the container 2 in the circumferential direction. In this case, the container 2 flowably contains a filtering material 10 for capturing and separating suspended material in the two more fluids fed from an exterior and heat exchanging between the fluids.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a heat exchanger and a heat exchange method, and more particularly, to a dry / wet heat exchanger and a method using a filter medium as a heat medium. The device and method of the present invention are, in principle, devices and methods for performing wet or dry gas-gas, gas-liquid and liquid-liquid heat exchange, and can also perform filtration and washing of a fluid. You can do it.

[0002]

2. Description of the Related Art Conventionally, as a heat exchanger adopting a direct heat exchange method using a heat medium of a heat transfer material, there is a rotating disk membrane type heat exchanger for air purification and waste heat recovery in an air conditioner. In this rotating disk membrane heat exchanger, the supply and exhaust air pass through approximately half of the area while the rotating disk membrane rotates, thereby purifying the fluid and performing heat exchange between intake and exhaust. is there.

[0003]

The prior art described above is
It has been widely used by industry for many years, but there are still many problems to be solved. That is, in the above-mentioned conventional heat exchange technology, the rotating disk membrane performs aeration filtration and purification. Therefore, in order to capture suspended substances in the fluid, the aeration resistance is low, and the filtration and capture can capture even small particles. With the ability to absorb heat as a heat medium
It must have excellent heat storage and heat dissipation capabilities, such as increased ventilation resistance (pressure loss) and recovery of its function (backwashing) due to filter clogging, and low heat transport characteristics due to the thin film and light specific gravity of the filtration material. Meeting the demands of the above was inconsistent. Further, in the above heat exchange method, wet (gas-gas wet heat exchange, gas-liquid wet heat exchange, liquid-liquid) heat exchange was more difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a novel heat exchanger and a heat exchange method which have solved the problems of the conventional heat exchange technology.
More specifically, it is possible to filter and separate suspended substances in a fluid with a minimum amount of a filter medium, perform heat exchange of the fluid, and wash the filter medium uniformly with a minimum amount of operating power. It is an object of the present invention to provide a heat exchanger and a heat exchange method which can eliminate suspended substances and the like in a fluid captured and separated by the fluid, and can be implemented at low equipment and operating costs. And

[0005]

In order to achieve the above object, a heat exchanger according to the present invention is a heat exchanger for exchanging heat between two or more fluids, wherein the heat exchanger is rotatable in a circumferential direction about an axis. A substantially cylindrical fluid circulating container provided so that the two or more fluids can be circulated in a state of being separated in the circumferential direction, and rotation driving means for rotating the fluid circulating container in the circumferential direction, Inside the fluid circulating container, a filter medium that captures and separates suspended substances in the two or more fluids flowing from the outside and exchanges heat with these fluids is accommodated in a flowable manner. Features.

[0006] The heat exchange method of the present invention is a heat exchange method for exchanging heat between two or more fluids, wherein the heat exchange method has a substantially cylindrical fluid flow path rotatably disposed in a circumferential direction about an axis. Inside the container, a filter medium for capturing and separating suspended substances in the two or more fluids, which is a heat medium and flows in from the outside of the fluid-flowable container, is accommodated in a flowable manner, and heat is contained in the fluid-flowable container. The two or more fluids to be exchanged are circulated in a state of being separated from each other in the circumferential direction, and the fluid circulating container is rotated about an axis so that heat is generated between the two or more circulating fluids and the filter medium. It is characterized by having a replacement.

[0007] In the present invention, first, any one of the two or more fluids flowing through the fluid-flowable container comes into contact with the filter medium, so that heat is exchanged between them. Further, by rotating the fluid circulating container, the filter medium that has exchanged heat is also rotationally moved,
The filter medium comes into contact with another fluid flowing while being separated from the one fluid that has already exchanged heat in the circumferential direction, and performs heat exchange with the other fluid.

[0008] That is, the filter medium transfers heat, absorbs heat, and stores heat energy of the one fluid, and then contacts the other fluid to release heat energy, thereby allowing the one fluid and the other fluid to communicate with each other. Function as a heat medium that serves to perform heat exchange between the two. For example, when the fluid circulating containers are all in a single fluid, that is, when heat is exchanged between the outgoing fluid and the returning fluid of the single fluid, the thermal energy of the outgoing fluid is When heat is transferred, absorbed, and stored in the filter medium, and the fluid circulating container rotates and the heat energy is stored, the filter medium on the outflow side faces the condensate side. , Heat exchange of gas-gas and liquid-liquid is performed.

Further, in the present invention, a plurality of fluid flow paths for separating and circulating the two or more fluids are provided, and these fluid flow paths are provided so that the two or more fluids respectively pass through the fluid permeable container. It is preferable to arrange so as to penetrate and flow in the axial direction. That is, since each fluid to be heat-exchanged flows in the axial direction of the fluid-flow container, the rotation direction of the fluid-flow container is orthogonal to the rotation direction of the filter in the fluid-flow container because the flow direction of the fluid is orthogonal to the rotation direction of the filter. As a result, the fluid and the filter material can be efficiently brought into contact with each other, and high heat exchange efficiency can be obtained.

[0010] Further, it is preferable that the plurality of fluid flow paths are set so that the fluid flows in opposite directions to the fluid permeable container. In other words, if the heat capacity in the axial direction of the fluid circulating container is uniform, when two types of fluids having different temperatures flow in the same direction with respect to the axial direction of the fluid circulating container, the maximum temperature difference occurs on the inflow side of the fluid. And the outflow side has the minimum temperature difference,
During that time, the temperature distribution becomes proportional. On the other hand, when two types of fluids having different temperatures flow in the direction opposite to the axial direction of the fluid circulating container, that is, in the opposite direction, the temperature difference changes over the entire length of the fluid circulating container in the axial direction. And the heat exchange efficiency can be further improved.

In the above, in the fluid-flowable container, a part or the whole of the outer wall surface of the container passes through a fluid (liquid, gas or both), and the fluid outside the container flows into the container or the fluid inside the container flows outside the container. It is a container configured to be able to flow out into the container, and may have any structure as long as it can accommodate a filtering material inside. Such a container preferably has an outer wall formed of a material having a fluid flow gap smaller than the particle diameter of the filter medium. According to this, a metal, a polymer material, a cloth using a natural or artificial fiber, a nonwoven fabric, or the like can be appropriately selected.

Further, in the present invention, the fluid-flowable container has a substantially cylindrical shape, and is disposed rotatably about an axis. The length of the cylinder is arbitrary, and may be a cylindrical shape having a diameter shorter than the entire length, or a disk shape having a smaller diameter than the entire length. In any case, the fluid-flowable container is supported by an arbitrary support, and is configured to be rotatable in a circumferential direction about an axis. Further, the number of the fluid-flowable containers is not limited to one, and two or more containers can be combined in parallel or in series or any other arrangement according to the amount, range, and the like of the fluid to be treated. . In particular, in the case where the cylindrical container is a disk-shaped container, if two or more containers are arranged side by side at a predetermined interval in the axial direction on a common rotating shaft, the processing range of the fluid can be widened. When a plurality of fluid circulating containers are mounted on the same rotating shaft, it is preferable to arrange them so that dynamic balance can be obtained with respect to the rotating shaft.

[0013] In the present invention, a fluid collection pipe having an outer diameter smaller than the outer diameter of the fluid-flowable container, which is also fluid-flowable, is provided inside the one or more fluid-flowable containers. Preferably, it is preferable that the respective fluid circulating containers are disposed with their axes substantially aligned. Each of the fluid collection pipes may have any structure as long as a part or the whole of the outer wall allows a fluid (liquid, gas or both) to pass therethrough and does not allow a filter medium to pass therethrough, as in the case of the fluid-flowable container. It does not matter, but preferably, the outer peripheral wall can be formed by a porous pipe or a breathable screen.

[0014] Thus, a filter material is accommodated in the space inside the fluid flow container and outside the fluid collection pipe, and when the fluid flows into the fluid flow container and passes through the filter material. In addition, it is configured such that suspended substances and the like in the fluid are captured and separated by the filter medium. Here, the fluid circulating container is configured in a cylindrical shape as described above, but the fluid to be filtered flows in from the outer peripheral side of the cylindrical container and moves in the axial direction to form a layer of the filtering material. Pass. Suspended matter larger than the filter material gap is trapped without being able to pass through the gap, and solid particles that have passed through the gap are filtered due to the difference in inertial force due to the mass difference between the solid particles and the fluid. It is trapped by the flow velocity being reduced by colliding with the filter medium or by the surface tension of the liquid on the surface of the filter medium. Here, in the case of wet solid separation, exhaust gas cleaning, mist adsorption, etc., depending on whether the suspended substance is hydrophilic or hydrophobic (lipophilic), the fluid to be wet is divided into water or oil and fat. In the case of lipophilicity, non-volatile and odorless ones are preferred.

As described above, the fluid to be heat-exchanged and filtered flows in from the outer peripheral side of the cylindrical fluid-flowing container, moves in the axial direction, and is filled and stored in the annular storage space. Because the material is moved radially and passes through, the surface area in contact with the fluid is significantly higher than that of a conventional heat exchanger in which heat exchange and filtration are one-way types, even for the same volume. The heat exchange efficiency and the suspended solids collection efficiency per filter medium volume are increased. Therefore, the required thickness of the filtration layer is determined depending on the temperature of the fluid and the filtration properties required for the fluid, but it is possible to achieve the desired heat exchange performance and filtration performance with a minimum filter material volume, It can transfer, absorb, and store heat energy in the fluid over the entire thickness of the filtration layer, and can even prevent and restrain solids in the fluid uniformly. The device can be manufactured. In addition, there is an advantage that the processing capacity can be freely increased by increasing the number of fluid-flowable containers as necessary.

Here, the filtering material used has a particle size or size that can be held in the fluid-flowable container, functions as a heat medium, and can capture and separate pollutants in the fluid. If there is, any material may be used as well as the material conventionally used in the filtration treatment.
Examples of the filter media that can be preferably used in the present invention include soil components mainly composed of hydrated silicate minerals (zeolites) and aggregated and granular silicate minerals such as natural or artificial silicate minerals (eg, lightweight foamed concrete (ALC)). Substances, porous and adsorptive carbide agglomerates, polymeric materials of granular or three-dimensional network-structure agglomerates or brush-like aggregates,
A hollow columnar or hollow sphere material of an inorganic or organic material can be mentioned, and these can be used alone or in a mixed state.

Further, in the present invention, when filtering a liquid, it is preferable to select a light-weight filter medium having a specific gravity of 1 or less among the above-mentioned filter mediums. As will be described in detail later, in the present invention, the fluid circulating container is rotated by a certain means, and the filter medium contained therein is flow-stirred. When stored in the fluid circulating container, buoyancy acts on the fluid circulating container, and in consideration of the balance between gravity and buoyancy, the rotational driving force of the fluid circulating container can be reduced. Fluid agitation is also facilitated by the self-buoyancy of the filter media itself. In addition, there is an advantage that a lightweight filter material is easy to handle and transport.

In the present invention, the filter material is filled at least partially in a fluid-flowable container so as to be able to flow. That is, the filter medium is accommodated with a certain space volume with respect to the volume of the fluid circulating container. For example, the filter medium when the fluid circulating container rotates and the top and bottom of the container are reversed. Due to its own weight drop, or the pressure energy of the fluid, or other effects, the filter media can be at least partially moved within the fluid flow container and brought into contact with each other.

In the present invention, by rotating the fluid-flowing container in the circumferential direction, the filter medium in the container is stirred and fluidized. That is, the filter medium accommodated in the fluid-flowable container does not adhere to or adhere to the container, and is entirely or partially movable. And / or the kinetic energy and the moving vector direction are different from those of the fluid circulating container due to the fluid energy due to the fluid flow, and the respective filtering media are also different from each other. , The filter media come into contact with each other. As a result, foreign substances and / or sludge adhering between and / or on the filter medium are released into the fluid, and at the same time, a part of the filter medium is also worn and eluted and diffused into the fluid. In this way, when the filter media wears out,
When the physicochemical function is restored and the particle size is reduced, the fine suspended substance can be captured and separated by the filter medium. It is discharged from the flowable container to the outside. When the amount of filter media in the fluid flow container decreases, the filter media is replenished.

Here, the rotation of the fluid-flowable container may be performed by any means, and a plurality of different means may be used in combination. For example, as a rotational driving means for rotating the fluid circulating container in the circumferential direction, a rotational power generating means such as an electric motor or an engine is mounted on a support supporting a rotating shaft, and directly or from a power transmission mechanism from the rotational power generating means. Means for transmitting the rotational power to the rotating shaft via the rotating shaft. Further, when there is a flow in the fluid, a conversion means for converting the fluid energy (fluid resistance) of the fluid flowing into the fluid circulating vessel or passing by the side into a rotational driving force, for example, a plate-like or wing-like resistance It is also possible to provide a member in a fluid-flowable container and rotate it using natural energy, and a rotation drive unit using a combination of the above-described rotation power generation unit may be used. In particular, when the resistance member is attached to the fluid-flowable container, it is preferable that the mounting position be on the outer peripheral side of the fluid-flowable container, so that a larger moment is obtained and the container can be rotationally driven with a small amount of fluid energy. Is more preferable. In addition, if a one-way rotating joint is provided on the drive shaft side, when the fluid circulating container is rotated by the fluid energy, the rotating power generation means side is not driven, so that the fluid energy is not consumed, and the device is not consumed. Can also prevent wear.

As described above, according to the present invention, by rotating the fluid circulating container, centrifugal force and gravity are generated in the filter medium and the fluid, and the filter medium is caused to flow, and is captured and separated by the filter medium. The suspended solids are discharged together with the fluid to the outside of the device.The fluid circulating container is rotated at a low speed, and the suspended solids contained in the fluid are captured and separated inside the filter medium. If the rotational power can be obtained, the operation can be performed with only the initial equipment cost and without the operation power cost, there is no influence on the environment, and almost no maintenance is required.

In the present invention, even if the initial particle size and the reduced small particle size are mixed, the filter material is not clogged by the agitation washing of the filter material, so that the filter performance is affected. There is no. Conversely, if large and small filtration media are mixed, the mutual stirring and washing has the effect of crushing suspended substances trapped and separated by the filtration media and promoting physicochemical treatment.

Further, in the present invention, the fluid collecting pipe is provided with a fluid discharging means for collecting the filtered fluid passing through the filtering material into the fluid collecting pipe and discharging the filtered fluid to the outside of the fluid circulating vessel. May be provided. The fluid discharge means is configured such that the fluid to be heat-exchanged and filtered is introduced into the fluid-flowable container from the outer periphery thereof, heat-exchanged and filtered through the filter material, and then the fluid guided to the fluid collection pipe is passed through the fluid-collecting pipe. Any means can be used as long as it can be released to the outside of the sex container. A means for discharging the fluid to the outside of the container can be naturally provided on the discharge side as inferred from the expression of fluid discharge, but it is not necessarily limited to the means provided on the discharge side, and a fluid supply means is provided on the supply side. And the fluid may be discharged outside the container. For example, when the fluid is a liquid, if the structure is such that the water head pressure on the outer peripheral side of the fluid circulating container is higher than that on the fluid collection pipe side, such a structure constitutes a fluid supply unit. Further, a discharge pump and a suction blower can be provided on the discharge side of the fluid collection pipe. Further, a pressurized fluid is supplied from the outer peripheral side of the fluid-flowable container, or the fluid-flowable container is accommodated in a sealed container, and a suction pipe and a discharge pipe are connected to the storage vessel. May be sent from the fluid circulating container to the discharge conduit via the fluid collection conduit.

The arrangement of the fluid circulating container is appropriately determined so as to be optimal depending on the object to be applied. Preferably, the fluid circulating container is arranged with its axis centered horizontally. If the fluid has a flow in a certain direction, the fluid is arranged with its axis parallel to the direction along the flow.

In the present invention, in the case where the two or more fluids include a fluid having a high specific gravity and a fluid having a low specific gravity, the fluid circulating container has an axial center arranged in a horizontal state. In addition, it is preferable that the lower part and the upper part are in contact with the heavy specific gravity fluid and the light specific gravity fluid, respectively. That is, since the specific gravity fluid and the specific gravity fluid flowing through the fluid circulating container are naturally separated vertically by the difference in specific gravity, both fluids can be easily separated in the circumferential direction of the fluid circulating container. .

For example, in the case of gas-liquid heat exchange, the fluid circulating container may be rotated while the lower portion of the fluid circulating container is in contact with the liquid, and the gas may be caused to flow through the upper portion of the fluid circulating container. That is, in two kinds of fluids having a specific gravity difference,
Heat can be exchanged without partitioning the pipeline (fluid flow path) of each fluid.

When it is desired to perform heat exchange between fluids having a specific gravity difference and either a light specific gravity fluid or a heavy specific gravity fluid, a pipe is provided on the target fluid side in the same manner as the above-described fluid flow path. The passages (fluid flow passages) may be configured in a partitioned manner. For example, heat exchange between gas, liquid, and gas in a wet state becomes possible.
Furthermore, even if there are three or more types of fluids, the heat exchange is possible if the fluid is not a mixed fluid (for example, air-oil-water).

Further, in the present invention, in one embodiment in which the fluid is composed of the heavy specific gravity fluid and the light specific gravity fluid, the fluid discharging means does not discharge the heavy specific gravity side fluid, but discharges only the light specific gravity fluid. And such an embodiment can be
It can be used in gas-liquid heat exchange and gas-wet solid separation / washing. In order to prevent the light specific gravity fluid from being discharged, for example, the specific gravity fluid in the fluid collection line may be set to be lower than the suction position height of the discharge line connected to the collection line. .

Further, since there is a possibility that the filter medium is replenished in the fluid-flowable container, it is preferable to provide a filter medium charging means at a predetermined position of the container. This charging means is a method in which the outer peripheral side of the fluid-flowable container appears on the liquid surface,
It is preferable to provide on the outer peripheral side, but when the fluid permeable container is separated upward from the liquid, for example, and the filter material can be replenished in the air, if its function can be performed, its position and size are changed. It doesn't matter. The fluid-flowable container may be provided with a flow-stirring assisting means for assisting the flow of the filter medium by rotation of the container. Such means may be any means as long as the function can be performed.For example, in order to change the distance between the individual agglomerates of the filter medium, a member or the like protruding into the container is provided, and the filter medium as a whole is provided. Means that hinder movement are preferred.

Although the heat exchanger and the heat exchange method of the present invention have been described with reference to various preferred embodiments, specific technical fields or equipment and / or equipment to which the heat exchanger and the heat exchange method of the present invention can be applied. Is extensive and can include, for example, various fields such as: That is,
Uses liquids such as air, gas, and other liquids such as air, gas, and water to exchange heat, as well as supply and exhaust heat exchangers with a cleaning function, dust collectors, cyclones, exhaust gas adsorption, deodorization, and purification with cleaning functions. (Scrubber), (use of waste heat) cooling / heating equipment, ventilation fan / air purifier with humidity adjustment (sterilization) function
Fields relating to equipment and / or equipment such as filters for clean rooms, mist separators, and purification of engine exhaust gas are applicable.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. However, the fields of application of the present invention are various as described above, and the following examples are examples. It only shows. However, those skilled in the art of heat exchange and filtration techniques will readily be able to adapt the present invention in their appropriate form in each of the aforementioned applications based on the foregoing description. In the following description, the operation and effect of each embodiment can be easily understood by those skilled in the art from the above description, and therefore, the configuration will mainly be specifically described.

FIGS. 1 and 2 show a first embodiment of the present invention, in which the present invention is applied to a single-fluid gas-gas dry heat exchanger. The heat exchanger 1
As shown in FIGS. 1 and 2, a hollow cylindrical fluid-flowable container 2 arranged rotatably in a circumferential direction about an axis.
And a rotation driving means 3 for rotating the fluid circulating container 2 in the circumferential direction.

The outflow fluid GF and the return fluid BF can flow in the fluid circulating vessel 2 as a single fluid such as air, which is a fluid to be heat-exchanged, while being separated in the circumferential direction. In other words, the outgoing fluid conduit (fluid flow passage) 4 and the returning fluid conduit (fluid passage) 5 through which the incoming fluid GF flows and the returning fluid BF flow through the returning fluid BF extend in the axial direction of the fluid circulating container 2. It is arranged to penetrate and distribute. In the present embodiment, the outgoing fluid line 4 is arranged at the lower part, and the return fluid line 5 is arranged at the upper part.

The outgoing fluid line 4 and the backward fluid line 5 are each formed in a circular cross section, and the outgoing fluid GF and the backward fluid BF flowing in the respective interiors are flowing in directions opposite to each other (opposite directions). . The fluid circulating container 2 is rotatably supported between the outgoing fluid line 4 and the return fluid line 5 and is fixed to a shaft member 6 having the same axis. It is housed in the set hollow cylindrical casing 7.

The casing 7 is fixed to the outgoing fluid line 4 and the returning fluid line 5, and the shaft member 6 is rotatably penetrated through the shaft. Circular flow holes 7 are formed at both axial end surfaces to which
a is formed, and the outgoing fluid GF and the return fluid BF can be circulated through the internal fluid circulating container 2. The rotation drive means 3 is wound around a rotation drive motor 8 provided on one axial end surface of a casing 7, an output shaft 8 a of the rotation drive motor 8, and one end of a shaft member 6 protruding from the casing 7. Belt 9 provided. That is, the rotation driving means 3 transmits the rotation force of the rotation driving motor 8 to the shaft member 6 via the belt 9 and rotates the fluid circulating container 2 around the axis at a predetermined rotation speed. .

A filter medium 10 for trapping and separating suspended substances in the inflowing fluid GF and the inflowing fluid BF and exchanging heat with these fluids can flow inside the fluid-flowable container 2. Is housed in The outer wall of the fluid circulating container 2 is formed of a wire mesh of a predetermined mesh that allows the outflow fluid GF and the return fluid BF to flow into the inside but does not allow the filtering material 10 filled therein to flow out.
Here, since the filter medium 10 has already been described in detail and will not be described again, it is preferable that the filter medium 10 be made of a soil component mainly composed of a hydrous silicate mineral (zeolite group) and be an outer wall of the fluid permeable container 2. Any particles having a particle size that does not pass through the substrate may be used.

In the heat exchanger 1 according to the first embodiment, when the outflow fluid GF flowing in the fluid flow container 2 and the filter medium 10 come into contact with each other, heat is exchanged between the outflow fluid GF and the filter medium 10. Is suspended by the filter medium 10. Further, the fluid-flow container 2 is rotated by the operation of the rotation drive motor 8, so that the heat exchanged filter material 10 is
Is also rotated, and the filter medium 10 comes into contact with the return fluid BF flowing in a state separated in the circumferential direction from the outgoing fluid GF that has already exchanged heat, and performs heat exchange with the return fluid BF. At the same time, the filter medium 10 captures suspended substances in the return fluid BF. Conversely, the filter medium 10 that has performed heat exchange and filtration in contact with the return fluid BF is rotated in the circumferential direction, thereby performing heat exchange and filtration in contact with the outflow fluid GF, and The thermal energy is transmitted to the outgoing fluid GF.

That is, the filter medium 10 transfers, heat-absorbs, and stores heat energy of one of the outflow fluid GF and the return fluid BF, and then contacts the other fluid to release the heat energy, thereby releasing the heat energy of both fluids. It functions as a heat medium that serves to perform heat exchange between them. Further, an outgoing fluid conduit 4 and a returning fluid conduit 5 are provided to separate and circulate the outgoing fluid GF and the returning fluid BF, respectively. And the rotation direction of the filter medium 10 in the fluid permeable container 2 is orthogonal to the flow direction of the fluid. The fluid and the filter medium 10 can be brought into contact with each other, and high heat exchange efficiency can be obtained.

Further, the outgoing fluid line 4 and the return fluid line 5
Are set so that the respective fluids flow in opposite directions to the fluid circulating container 2. Therefore, if the heat capacity in the axial direction of the fluid circulating container 2 is uniform, the outgoing fluid GF and the reverse As compared with the case where the fluid BF flows in the same direction with respect to the axial direction of the fluid circulating container, the change in the temperature difference is reduced over the entire length of the fluid circulating container 2 in the axial direction. The exchange efficiency can be further improved.

Next, a second embodiment of the present invention, in which the present invention is applied to a gas-liquid wet heat exchanger, will be described below with reference to FIGS.

The difference between the second embodiment and the first embodiment is that the heat exchanger 1 of the first embodiment exchanges heat with a single fluid such as air, whereas the heat exchanger 1 of the first embodiment exchanges heat. As shown in FIGS. 3 and 4, the heat exchanger 20 according to the second embodiment exchanges heat between a gas A such as air or gas which is a light specific gravity fluid and a liquid L such as water or oil which is a heavy specific gravity fluid. Is different from the above.

That is, the heat exchanger 20 of the second embodiment has the same fluid circulating vessel 2 as that of the heat exchanger 1 of the first embodiment, and the upper part of the fluid circulating vessel 2 is to exchange heat. The gas A is disposed in a horizontal gas pipe 21 through which the gas A flows.
The liquid L to be heat-exchanged is provided in a lower part of the liquid tank 22 and is submerged in the liquid tank 22. Therefore,
The gas A and the liquid L can flow in the upper half and the lower half of the fluid flow container 2 in a state of being separated from each other.

A pair of support members 23 are fixed to the upper part of the inner surface of the gas pipe 21 in a hanging state.
A shaft member 24 is attached to the lower end of 3 so as to be rotatable in parallel with the gas pipeline 21. The fluid circulating container 2 is fixed to the shaft member 24 so as to have the same axis, and the fluid circulating container 2 is rotatable together with the shaft member 24. A belt 25 is wound around one end of the shaft center member 24, and the belt 25 is connected to a rotary drive motor (not shown) as in the first embodiment. That is,
The rotation force of the rotation drive motor is configured to be transmitted to the fluid circulating container 2 via the belt 25. In addition,
The shaft member 24 is disposed so as to be located above the liquid tank 22, and is set so as not to be submerged in the liquid L.

The liquid tank 22 is connected to one end of an inlet pipe 26 for flowing the liquid L into the liquid tank 22 and one end of a discharge pipe 27 for discharging the liquid L. The other ends of the inlet pipe 26 and the discharge pipe 27 are connected to an external pump ( (Not shown). That is, the liquid L in the liquid tank 22 is circulated through the inflow pipe 26 and the discharge pipe 27 by operating the external pump.

In the heat exchanger 20, when the gas A flowing through the gas pipe 21 flows through the upper part of the fluid-flow container 2, the gas A exchanges heat with the internal filter material 28 and the suspended matter in the gas A is exchanged. Is captured by the filter medium 28. Further, by the operation of the rotary drive motor, the fluid circulating container 2 is rotated, and the filter medium 28 that has exchanged heat with the gas A also rotates in the circumferential direction, and is submerged in the liquid L in the liquid tank 22.

At this time, the liquid L flows through the lower part of the fluid-flowable container 2 and comes into contact with the filter medium 28 that has exchanged heat with the gas A, so that heat exchange is performed between the filter medium 28 and the liquid L. At the same time, the suspended matter in the liquid L is captured by the filter medium 28. Therefore, the thermal energy of the gas A is transmitted to the liquid L via the filter medium 28. Conversely, the filter medium 28 that has performed heat exchange and filtration on the liquid L also rotates in the circumferential direction to perform heat exchange and filtration on the gas A,
The thermal energy of the liquid L is transmitted to the gas A. That is,
The filter medium 28 functions as a heat medium for performing heat exchange between the gas A and the liquid L by rotating and moving in the circumferential direction.

Further, in the heat exchanger 20, the fluid circulating vessel 2 has its axis centered in a horizontal state, and has a lower portion and an upper portion each having a liquid L of a heavy specific gravity fluid and a gas A of a light specific gravity fluid.
Since the liquid L and the gas A flowing through the fluid circulating container 2 are naturally separated vertically by the difference in specific gravity, both fluids are separated in the circumferential direction of the fluid circulating container 2. They can be easily separated without partitioning.

Next, an example of a third embodiment of the present invention applied to a gas-liquid wet heat exchanger different from that of the second embodiment will be described below with reference to FIGS. I do. In the figure, reference numeral 60 denotes a cylindrical fluid circulating container in which a gas collecting pipe 61 is formed coaxially with a wire mesh or the like, and a filter is provided in the fluid circulating vessel 60 to an annular space outside the gas collecting pipe 61. The material 62 is filled so as to be able to flow. The fluid-flowable container 60 is housed in a horizontal posture in a housing 63 provided with a cone-shaped portion on the upper and lower sides, and a pivot 6 is provided at one end.
4. At the other end, a pipe 65 communicating with the gas collecting pipe 61 and also serving as a discharge pipe is attached, and is rotatably supported on the wall surface of the container 63 by the pivot 64 and the pipe 65. And
A drive device (rotation drive means) 66 (only a pulley is shown in the drawing) is attached to the tube 65, and the fluid flow container 60 is rotated in the circumferential direction by the drive device 66. Further, a suction blower (not shown) is connected to the tube 65 via a rotary joint or the like.

A gas introduction pipe 67 for introducing the gas A to be subjected to heat exchange and filtration is connected to the upper end of the upper cone of the container 63, and a valve 68a is provided at the lower end of the lower cone. A discharge pipe 68 for discharging sludge is connected, and a liquid L such as water provided with a valve 69a is provided on the lower wall of the storage container 63 on the radial side of the fluid circulating container 60. And a discharge pipe 70 for the liquid L provided with a valve 70a are connected at diametrically opposite positions. Further, the liquid L is supplied into the storage container 63, whereby the lower side of the fluid-flowable container 60 is immersed in the liquid. An overflow pipe for keeping the liquid level constant is provided, and a liquid supply pipe 7 for compensating for a drop in the liquid level is provided.
2 is attached.

In the heat exchanger according to this embodiment, the inflowing gas A passes through the fluid circulating vessel 60 in the axial direction from the outer periphery thereof, and is filtered by the filter medium 62 during this time to obtain a clean gas. A and heat exchange is performed with the filter medium 62. Thereafter, the gas A is exhausted from the gas collecting pipe 61 by a suction blower. At this time, the fluid circulating container 60 is rotated in the circumferential direction by the driving device 66 to flow and abrade the filter medium 62 to recover its function, and discharge the trapped dust and the like into the liquid.

The filter medium 62 that has exchanged heat with the gas A
Rotates in the circumferential direction, is immersed in the liquid, and further exchanges heat with the liquid L. That is, the filter medium 62
Functions as a heat medium for transferring the thermal energy of the gas A to the liquid L and exchanging them. Conversely, the filter medium 62 that has exchanged heat with the liquid L rotates and exchanges heat with the gas A in the same manner as described above, transfers the heat energy of the liquid L to the gas, and exchanges these heats.

[0052]

According to the present invention, a filter medium for trapping and separating suspended substances in a fluid as a heat medium is flown inside a substantially cylindrical fluid circulating container arranged rotatably in the circumferential direction. The two or more fluids to be heat-exchanged and accommodated in the fluid circulating container are allowed to flow while being separated from each other in the circumferential direction, and the fluid circulating container is rotated to allow the two or more fluids to circulate and the filtration. Since the heat exchange is performed with the material, heat exchange between two or more fluids can be efficiently performed with a minimum amount of the filter material. Further, the suspended substance in the fluid can be separated by filtration with a minimum amount of the filter medium, and the filter medium can be uniformly and uniformly washed with a minimum operation power. In other words, by reducing the filter clogging and maintaining the heat exchange and filtration function by the cleaning effect of the filter medium that eliminates suspended substances and the like in the captured and separated fluid in the fluid, the high heat transfer characteristics can be maintained for a long time. Can be obtained. Therefore, both the heat exchange function and the filtration function can be achieved with high efficiency, and can be implemented with low equipment and operating costs.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a heat exchanger according to a first embodiment of the present invention.

FIG. 2 is a side view of the heat exchanger of FIG.

FIG. 3 is a longitudinal sectional view showing a heat exchanger according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of the heat exchanger of FIG.

FIG. 5 is a longitudinal sectional view showing a heat exchanger according to a third embodiment of the present invention.

FIG. 6 is a cross-sectional view of the heat exchanger of FIG.

[Explanation of symbols]

 Reference Signs List 1, 20 heat exchanger 2, 60 fluid circulating container 3 rotation drive means 4 outgoing fluid line (fluid flow path) 5 return fluid line (fluid flow path) 8 rotary drive motor 10, 28, 62 filter material 21 gas pipe Channel 22 Liquid tank 61 Gas collecting pipe (fluid collecting pipe) 63 Storage container A Gas BF Return fluid GF Outgoing fluid L Liquid

Claims (13)

[Claims] 1. A heat exchanger for exchanging heat between two or more fluids, wherein the heat exchanger is rotatably disposed in a circumferential direction about an axis, and the two or more fluids can flow in a state of being separated in a circumferential direction. A substantially cylindrical fluid circulating container, and rotation driving means for rotating the fluid circulating container in a circumferential direction. A heat exchanger characterized in that a filter medium that captures and separates suspended substances from the above and exchanges heat with these fluids is housed in a flowable manner. 2. A plurality of fluid flow paths for separating and circulating the two or more fluids, respectively, wherein the two or more fluids pass through the fluid circulating container in the axial direction thereof. The heat exchanger according to claim 1, wherein the heat exchanger is arranged so as to be circulated. 3. The heat exchanger according to claim 2, wherein the plurality of fluid flow paths are set so that the fluid flows in opposite directions to the fluid circulating container. 4. A fluid-flow collecting fluid conduit is disposed substantially concentrically with the fluid-flow container inside the fluid-flow container, and the filter medium is provided inside the fluid-flow container. The fluid collecting pipe is accommodated in a space outside the collecting fluid pipe, and the fluid collecting pipe collects any one of the two or more fluids flowing from the outer wall of the fluid permeable container and passing through the filtering material. 2. The heat exchanger according to claim 1, further comprising a fluid discharge means for collecting the fluid in a fluid conduit and discharging the fluid to the outside of the fluid-flowable container. 5. The fluid circulating container is a container having an outer wall surface having a fluid circulating gap smaller than the particle size of the filter medium, and the fluid circulating fluid collecting pipe is provided with a particle size of the filter medium. The heat exchanger according to claim 4, wherein the heat exchanger is a pipeline having an outer wall surface having a small fluid flow gap. 6. The two or more fluids include a fluid having a high specific gravity and a fluid having a low specific gravity, wherein the fluid circulating container has an axial center arranged in a horizontal state and a lower portion and an upper portion, respectively. The heat exchanger according to any one of claims 1 to 5, wherein the heat exchanger is in contact with a heavy specific gravity fluid and the light specific gravity fluid. 7. The filter medium is composed of a soil component mainly composed of a hydrated silicate mineral (zeolite group), a granular material of natural or artificial silicate mineral, and a granular material of porous and adsorbable carbide. Selected from the group consisting of granular materials or three-dimensional network structured agglomerates or brush-like agglomerates of polymeric materials, hollow cylindrical or hollow spherical materials of inorganic or organic materials, alone or in a mixed state. The heat exchanger according to any one of claims 1 to 6, wherein: 8. A heat exchange method for exchanging heat between two or more fluids, wherein a heat medium is provided inside a substantially cylindrical fluid circulating container arranged rotatably in a circumferential direction about an axis. A filter medium for capturing and separating suspended substances in the two or more fluids flowing from the outside of the fluid-flowable container, and the two or more fluids to be heat-exchanged in the fluid-flowable container; And distributed in a state separated from each other in the circumferential direction,
A heat exchange method comprising: rotating a fluid circulating container about an axis to cause heat exchange between the two or more fluids flowing and the filter medium. 9. The filter medium is accommodated in the fluid circulating vessel in which a fluid circulating fluid collecting pipe is coaxially arranged, and one of the two or more fluids to be heat-exchanged. The two fluids are guided from the outer periphery into the fluid circulating vessel, pass through the filter medium and exchange heat, and are discharged to the outside through the fluid collecting pipe. Then, the fluid circulating vessel is rotated around the axis to perform filtration. 9. The heat exchange method according to claim 8, wherein the material is caused to flow, and suspended substances in the fluid captured by the filter material are discharged to the outside of the fluid-flowable container. 10. The heat exchange method according to claim 8, wherein each of the two or more fluids is a gas. 11. The heat exchange method according to claim 8, wherein the two or more fluids include one that is a gas and one that is a liquid. 12. The heat exchange method according to claim 8, wherein the two or more fluids include a fluid having a heavy specific gravity and a fluid having a light specific gravity. 13. The heat exchange method according to claim 12, wherein the heavy specific gravity fluid is a liquid and the light specific gravity fluid is a gas.