KR20140015234A - Microwave reactivation system for standard and explosion-proof dehumidification - Google Patents

Abstract

TECHNICAL FIELD The present invention relates to dehumidification equipment, and more particularly to explosion-proof dehumidification systems used in hazardous locations and / or applications, as well as microwave reactivation systems and novel desiccant dehumidification systems and desiccant rotors for use in conventional dehumidification. It relates to an activation / playback method. The dehumidification system includes a desiccant rotor assembly located within the cabinet and a rotor rotatably mounted within the cabinet. The desiccant rotor core is impregnated with the dehumidification type material. Mechanical means are provided for rotating the desiccant rotor in the cabinet. The microwave system and reactivation method are designed to provide an indirect and safe energy efficient source of heat and temperature rise required in the reactivation zone of the dehumidification unit to release into the atmosphere of water vapor accumulated in the desiccant rotor. This microwave reactivation system and method is based on heat transfer generated from heated fluid pumped through a closed loop coil assembly. This closed loop coil assembly is located and operated through both a reactivation / regeneration zone in the dehumidification system and a separate heating chamber in the microwave zone. The airflow passing through the reactivation inlet zone contacts the coil assembly and is heated to the desired temperature before reaching the desiccant rotor. Also described herein is a desiccant dehumidification system consisting of a dehumidification method and a desiccant rotor assembly enclosed within a specific space.

Description

Standard and explosion proof microwave reactivation system {MICROWAVE REACTIVATION SYSTEM FOR STANDARD AND EXPLOSION-PROOF DEHUMIDIFICATION}

Related application

This application claims the benefit of US patent application Ser. No. 13 / 116,910 (filed May 25, 2011), which is a continuing application of US patent application Ser. No. 12 / 801,292, filed June 2, 2010. The application is incorporated herein by reference.

Statement on Federally Supported Research or Development

Not applicable

Reference to Sequence Listing, Table, or Computer Program List Compaq Disc Supplement

Not applicable

Dehumidification and moisture / humidity control are critical and decisive concerns in many industrial sectors such as coastal, inland, marine and military. Several processes and techniques have been designed and developed to address this serious problem. Some of the Heating Ventilation and Air-Conditioning (HVAC) hybrid systems that perform humidity control within a particular space use mainly temperature; By lowering the relative humidity by heating the air to expand the ability of the air to absorb and retain moisture, and then by cooling the air temperature below its dew point and condensing and extracting moisture / water vapor. Conventional systems, such as basic cooling systems, consist of cooling coils, condenser coils, ventilation fans, and compressor units.

While these systems can be widely used and operate effectively in a variety of situations, their primary function and design goal is to provide heating and cooling of specific areas by climate application, by dehumidification as a by-product. This type of system is generally used in a variety of venues and conventional and also dangerous industrial place applications. The main advantage of using this type of system is that it does not generate hot air streams or operate at high temperatures, which may possibly ignite or ignite flammable vapors and / or even volatile gases found in ambient air.

While these cooling systems are generally very efficient during operation in the warm and humid cold weather conditions found in the southern hemisphere, they are inefficient and incompatible when operating in cold and wet climate conditions located in dangerous and unstable environments found in the northern regions. Turned out. Desiccant dehumidification systems operate in completely different areas with differential vapor pressure and water vapor low pressure. The greater the humidity and humidity in the air, the greater the vapor concentration and pressure.

In comparison, the dry desiccant rotor found in dehumidification based dehumidification systems has a very low water vapor pressure. When moist, damp high vapor pressure air molecules come in contact with the low vapor pressure on the surface of the desiccant rotor, the molecules move from high vapor pressure to low vapor pressure to achieve an equilibrium state. As the moist and moist air stream passes through the rotor, the molecules are retained by the hygroscopic material, and the resulting release air is delivered in a dry state. If the desiccant dehumidification system does not use liquid condensate or gas, this allows the system to continue to effectively remove water vapor / moisture even when the dew point air temperature drops below zero. Thus, desiccant dehumidification performance is actually improved at cold temperatures and is not affected by the same drawbacks / disadvantages commonly found in conventional cooling-based and / or hybrid systems using a combination of heating and cooling steps during operation.

Desiccant dehumidification systems are equipped with a desiccant rotor that is impregnated with a hygroscopic material. The system includes two separate operating zones-a process section and a reactivation section. During normal operation, the ambient air stream flows through the process zone and then through the desiccant rotor where moisture is collected and removed from the air stream. As a result, dry air is released, which is delivered into the area or enclosure to be dehumidified. At the same time, another air stream passes through the desiccant dehumidifier and flows in the opposite direction through the separate regeneration zone and then through the absorbent material of the rotor. This air stream passing through the regeneration zone is heated to approximately 2001 ° F. to 500 ° F. before contacting the rotor's surface. The heat has the effect of deactivating the hygroscopic material in the rotor, which in turn allows the material to release water vapor molecules into the exhaust air stream and into the outside atmosphere.

During the operating process, the desiccant rotor rotates slowly around its longitudinal axis (approximately 8 to 10 revolutions per minute). Desiccant dehumidification systems have proven to be very effective in reducing and controlling the humidity and humidity in the air being handled by the system. Unfortunately, the energy needed to operate these systems can sometimes be limited or not immediately available, particularly in the case of sea, coastal or remote mobile sites where these systems need to be operated.

This problem is caused by the fact that a high (heat) temperature rise in the air stream is absolutely necessary in the regeneration zone (which usually means high energy requirements) to dry the rotor hygroscopic material. The generation of heat is usually submerged in a fluid passing through an electrical heating bank or element, a flame gas burner, or a coil located in the airflow path, operating in a manner that radiates and transfers heat to the regenerated air stream as follows: Is achieved by the use of-.

These methods are generally the most commonly used means of heating desiccant dehumidification reactivation inlet airflow, so that the air temperature rises to a temperature set point before contacting the rotor hygroscopic material. On the other hand, in the case of a conventional mechanical dehumidification system in which the heating and cooling processes are used individually or in combination (such as a hybrid system), the role of the heating element is to expand and raise the temperature of the air volume to reduce heat to lower relative humidity. It happens. This air stream then passes through a cooling coil that rapidly cools the air stream temperature, thus making it possible to extract moisture as a condensate. This new "microwave regeneration system" is designed and intended to be installed in a standard explosion proof dehumidification system to operate as a high heat generating source. In a preferred embodiment, this microwave regeneration system is installed in the regeneration zone of a standard or explosion proof desiccant dehumidification system.

This microwave regeneration system generates heat by generating electromagnetic waves that pass through materials and fluids, causing molecules in them to vibrate rapidly in an excited state and thus generate heat.

In a preferred embodiment, the medium used to store and transfer this heat is a fluid. This fluid is carried by a supply and return pump, flowing through a first series of glass ceramic coils that are part of a closed loop circuit, passing through a microwave heating chamber where fluid molecules are processed and exposed to electromagnetic waves. This results in excitation and high fever. This superheated fluid then flows through a second parallel series of metal coils located in the lower regeneration zone in the direct path of the air flow. This heat transfer from the fluid to the coil substantially raises the temperature of the air flow as it flows in contact with and across the surface of the coil. This heated air stream is then used to deactivate the porous moisture absorbent material that is impregnated in the dehumidification wheel / rotor. This heat-flowing air stream has a demagnetizing effect on the hygroscopic material, thereby releasing retained accumulated moisture and thus greatly reducing the vapor pressure in the hygroscopic material for reuse in the dehumidification process zone. In alternative embodiments, the microwave regeneration system may also be adopted and installed in any mechanical heating / cooling hybrid or cooling dehumidification system that must generate a heat source to successfully achieve the dehumidification process.

In this type of dehumidification system, which is included but not limited to, the inlet ambient air flow temperature is increased to expand the air volume so that the retained moisture can be extracted through condensation, and then the coolant cooling coil causes the treated air stream to A heat source is needed to allow the air stream to cool rapidly as it passes.

In essence, the microwave regeneration system replaces, but is not limited to, the previously mentioned other conventional heating sources, such as electric heating banks and elements that raise the temperature to generate heat, flame gas burners or submerged heating elements submerged in fluids. can do. The installation and operation of this microwave regeneration system will enable to achieve the heat generation requirements essential for the operating efficiency and optimum output of mechanical hybrids, coolants and especially desiccant dehumidification processes. At the same time, due to the very effective ratio of low energy requirements to high heat generating capacity, the microwave regenerative heating system will substantially reduce power demand and consumption without compromising performance. In order to develop adequate BTU heat generation for optimum dehumidification and peak operating performance, whether standard or explosion proof ratings, it is essential for these industrial dehumidification systems, in particular desiccant dehumidification systems. Microwave regeneration heating systems enable to safely and effectively achieve and surpass all of the above requirements.

According to one aspect of the present invention, there is provided a microwave reactivation system having the function of a dehumidification type dehumidification system or a mechanical dehumidification system combining both heating and cooling. Mechanical heating / cooling hybrids, refrigerants or desiccant dehumidification systems are used for the purpose of dehumidifying and drying material and air volumes in the enclosed area or space.

In a preferred embodiment, the microwave reactivation system is designed for use in a desiccant dehumidification system. The desiccant dehumidification system consists of two operating zones: a process zone and a reactivation zone. The desiccant dehumidification system has a desiccant rotor / wheel assembly that is mounted and rotated in a cabinet consisting of two separate separate zones. The perforated core of the desiccant rotor / wheel is impregnated with a dehumidifying material that has the ability to capture and retain water vapor found in the atmosphere. The process zone is intended as the collection and maintenance of moisture / water vapor found in the air stream. A blower located in the process zone is provided to propel this airflow at high speed through the rotor, where the desiccant material retains moisture and the airflow discharged through the treatment outlet delivers the dry matter to the enclosure.

At the same time, another blower located within the reactivation zone propels the airflow through the reactivation zone. This air stream is heated by a series of hollow zigzag coils, the coils having internally heated fluids passing through them. The high heat radiated from the coil is transmitted through the coil onto an air stream that substantially raises the temperature while in contact with the rotor surface. As the hot air stream passes through the perforated rotor, this process deactivates the desiccant material, releasing moisture into the air stream and transferring damp air through the outlet to the surrounding atmosphere.

This constant process allows the core desiccant material of the rotor to rotate through the reactivation zone and then release moisture accumulations as it is rotated back into the process zone to resume the removal of water vapor / moisture in the process airflow.

The microwave reactivation system consists of two separate zones working together. The microwave zone consists of an explosion-proof outer cabinet with an inner casing that includes a cavity having an inner surface thereof forming a microwave heating chamber. The blocking plate forming a compartment located above the microwave heating chamber is to provide a housing for the microwave power conversion elements therein, such as magnetrons, high voltage transformers, diodes, capacitors and other operating elements.

In a preferred embodiment, the microwave reactivation system consists of two separate coil assemblies combined as part of a single closed loop system. They are mounted in place and securely fixed by using a series of impact resistant mounting brackets. There is a glass-ceramic coil assembly connected at two points to a metal coil assembly mounted in the microwave heating chamber and mounted in the reactivation zone. These coil assemblies are firmly connected at two opposing points by fittings and seals firmly connected to individual pumps, one for supply and the other for transport. The pumps ensure a constant and continuous heater fluid flow reliably flowing from the microwave zone to the activation zone and again. These pumps are located opposite the shield plate which forms the partition between the microwave heating chamber and the reactivation zone. This closed loop circuit passes through both the reactivation zone of the dehumidification system and the microwave heating chamber in the microwave zone. This hollow coil consists of a length and is designed as a closed loop line, which flows a heat transfer fluid, such as a thermal oil or heater liquid, which is used to carry thermal energy. The fluid transfers the accumulated thermal energy / heat to the coil which is continuously heated in the microwave zone as it is pumped through the heating chamber and circulated and radiated on the air stream as it passes through the reactivation zone. Constant movement of this fluid is ensured by the installation and operation of one or several explosion-proof pumps in the assembly. This ensures circulation of the heated fluid from the heating chamber located in the microwave zone back onto the reactivation zone and back in a continuous process.

Thus, this microwave reactivation system generates the heat source and airflow temperatures needed to properly inactivate the desiccant material found in the rotor core, thereby releasing accumulated moisture / water vapor into the airflow being discharged to the ambient atmosphere. Will be.

The enormous advantage of the microwave reactivation system is that it performs its main function of providing a reactivation heat source, while significantly reducing the energy requirements for heat generation and overall power consumption of the desiccant dehumidification system. This significant energy savings makes the dehumidification system more widely accessible and available for standard and critical hazardous applications that were previously unserviceable due to power limitations. The high energy requirements normally associated with the use of standard dehumidification units are eliminated by the application of this microwave reactivation system.

Current sources for heat generation used in reactivation zones, such as electric heating elements, etc., play a large share in operating the energy of dehumidification or mechanical dehumidification systems. Thus, due to the significantly reduced power requirements required to operate the microwave reactivation system, this dehumidification technique is found inland, offshore, marine and military where power availability may be limited or used for other critical operating requirements. Can be operated at optimum performance in the intended environment and application.

The explosion-proof cabinet structure of the heating chamber portion of the microwave reactivation system can be built and installed in the existing explosion-proof dehumidification system disclosed in US Pat. No. 7,308,798 B2 for use and operation in hazardous locations.

The microwave reactivation system may be adapted to fit in a standard non-explosive dehumidification system, such as a dehumidification unit requiring heat for reactivation and an HVAC unit using a combination of heating and cooling in the dehumidification process.

Embodiments of the present invention will be more clearly understood by reference to the following detailed description of embodiments of the present invention, taken in conjunction with the accompanying drawings described below;
1 is a schematic diagram elevation and perspective view of a dehumidification system according to a preferred embodiment of the present invention, these corresponding figures being enlarged in FIGS. 3, 4, 5, 8, 9 and 10;
2 is driven by a suction blower simultaneously across the microwave reactivation and process zones and through the desiccant rotor or wheel core material during operation of the dehumidification system with an electric drive motor to drive and rotate the desiccant rotor / wheel assembly. Schematic diagram cross-sectional view (not to scale) of a desiccant rotor / wheel assembly showing typical air flow movements;
3 is a schematic diagram elevation view of the dehumidification system also shown in the unit view 1 of FIG. 1;
4 shows various dehumidifying operation exposure zones; An overall cross section and elevation view (not to scale) of the dehumidification system 31, also shown in FIG. 1, with a process zone, microwave reactivation / regeneration zone, and a microwave heating chamber also shown in FIGS. 6 and 7;
FIG. 5 shows a unit view 2 in FIG. 1 with the exposed closed loop interconnect coil assembly also shown in FIGS. 4, 5, 6 and 7 co-located in the microwave heating chamber and the microwave reactivation / regeneration zone. A schematic elevational cross-sectional view of the dehumidification system, also shown in Fig. 4, wherein the airflow treatment inlet and reactivation outlet side include the static blower shown in FIG. 4 (not to scale);
FIG. 6 is a schematic diagram cross-sectional view of the internal structure of a closed loop coil assembly of a microwave reactivation system, wherein the microwave heating chamber coils assembly is connected to the reactivation zone coil assembly shown also exposed in FIGS. 4, 5 and 7. And includes, but is not limited to, key operating components such as capacitors, diodes, high voltage transformers, heater fluid circulation pumps, magnetrons, stirrer blades and waveguides, etc .;
FIG. 7 is a schematic diagram (not to scale) with perspective and cross-sectional views of a microwave reactivation system as also shown in FIGS. 4, 5, and 6;
8 is a schematic diagram elevational side view of an airflow treatment inlet and a reactivation outlet comprising the static reactivation exhaust blower shown in the unit view 2 of FIGS. 1 and 2, 4 and 5;
9 is a schematic diagram cross-sectional and perspective view shown in the unit view 3 of FIG. 1 illustrating an interior operating zone of a cabinet, such as treatment and microwave reactivation, including a desiccant rotor / wheel assembly compartment;
10 is a schematic diagram perspective view of the unit view 4 of FIG. 1.

The following detailed description and examples set forth herein are provided as examples or examples of specific embodiments of the principles and aspects of the present invention. These examples are provided to illustrate these principles of the invention and are not intended to be limiting.

In the following detailed description, the same parts are denoted by the same reference numerals throughout the specification and the drawings. Throughout the specification, in connection with any electrical component, part or module, as part of the microwave reactivation system (FIGS. 3, 4, 5, 6 and 7) and / or the microwave reactivation system 33 in the name. The term "explosion proof" used means that the enclosure can withstand the pressure of an explosive or explosive mixture that explodes in the enclosure without rupturing and can prevent the explosion in the enclosure from transferring to the atmosphere surrounding the enclosure. 3, 4, 5, 6, and 7, the microwave reactivation system as shown is identified throughout the description by reference numeral 33. 1, 3, 4, 5, 8, 9 and 10, indicated by reference numeral 31 throughout the description and shown in the unit views 1, 2, 3, 4 of FIG. 1. The dehumidification system is shown.

As described in more detail below, the dehumidification system 31 may remove moisture / humidity from air in certain enclosed spaces (not shown). The dehumidification system 31 (FIGS. 1, 3, 4, 5, 8, 9 and 10) is installed inside or outside of the space surrounded by the distributed dry air by using duct work tubing. Can be. Microwave reactivation system 33 (FIGS. 4, 5) in explosion-proof casing 34 (FIGS. 3 and 4) designed as part of an overall explosion proof dehumidification system 31 that can be used in or near an enclosure located in a hazardous environment. By using FIGS. 6 and 7). A complete example is the publication of which the disclosure is incorporated herein by reference (Class. 1-Division / Zone 2 as defined in the 2002 edition of the Canadian Electrical Code, Part 1, Section 18 entitled "Hazardous Locations", published by the CSA Canadian Standards Association, Toronto, Ontario). Flame gas or vapor at this position may be present in the air in an amount sufficient to produce an explosive or ignitable mixture.

However, this risk is not usually present, but can occur under abnormal conditions. Examples of this hazardous location include offshore installation and drilling platforms, reactors, petrochemical / chemical plants, live installations for oil refining munitions, and weapons storage facilities. The explosion-proof dehumidification system 31 (FIGS. 1, 3, 4, 5, 8, 9 and 10), as described in more detail below, can be well adapted to safe deployment in these hazardous and volatile locations. It is designed to have a microwave reactivation system 33 (FIGS. 4, 5, 6, 7) in an explosion-proof casing 34 (FIGS. 3 and 4).

The dehumidification system 31 (unit views 1, 2, 3, 4) (FIG. 1) is supported and mounted in a rigid steel frame 16 (FIG. 3) in the shape of a rectangular box. This frame 16 (FIG. 3) is a longitudinal beam 17a, 17b, a base longitudinal beam 17c, 17d (supporting an electrical panel 30 and a programmable logic controller (PLC) panel 29). 3), transverse beams 22a, 22b, 22c, 22d, 22e, constructed from various structural members assembled from top to bottom. The vertical posts 18a, 18b, 18c, 18d, 18e, 18f, 18g, 18h (FIG. 3) include a PLC panel 29 and a plug-in power cable connector panel 28 and an oblique brace member 19a, 19b, 19c, 19d. , 19e, 19f, 19g, 19h) (FIG. 3). U-shaped consisting of a small longitudinal beam and two small transverse beams attached to vertical posts 18c and 18e that surround and support the PLC panel 29 and the plug-in power cable connector panel 28 and provide support and rigidity. There is further a beam 23. Three additional small lengths located behind the PLC panel and plug-in power cable connector panels attached to the vertical posts 18g and 18h that provide further support and rigidity to the framework surrounding the control and electrical panels of the dehumidification system 31. There are directional beams 24, 25, 26. Frame 16 (FIG. 3) has two sleeve channels 31a, 31b located in the base center for the forklift to insert the hooks of the sling assembly to enable placement and manipulation on the roof, floor or platform. (FIG. 3) and four corner lift points 27a, 27b, 27c, 27d (FIG. 3) located in the upper corner of the frame as well as two base feet located at two ends for positioning on the structural support surface ( 20a, 20b) (FIG. 3).

In a preferred embodiment, the dehumidification unit frame 16 is made of stainless steel and the cabinet / casing 34 is made of stainless steel or aluminum to prevent rust accumulation, corrosion and deterioration even when used in abrasive environments such as offshore applications. prevent. In alternative embodiments, configurations of epoxy coated resistive steel frame 16 and cabinet 32 types may be further used.

Thus, the dehumidification system 31 (FIGS. 1, 3, 4, 5, 8, 9 and 10) is well supported by this frame structure 16 and is improved and fixed in all environments and locations. Profit from portability. It can be easily transported and deployed to various temporary or permanent work locations and facilities. As shown in FIGS. 1, 3, 4, 5, 8, 9, and 10, the frame 16 (FIG. 3) is in its entirety for verifying parts and performing routine maintenance and repairs. The cabinet 32 (FIGS. 1 and 3) of the dehumidification system 31 (FIGS. 1 and 3) is opened to facilitate and enable access. However, in an alternative embodiment, the frame 16 has a dehumidification system as shown in FIGS. 1 and 3 as well as an operating component with a microwave reactivation system described as 33 in FIGS. 4, 5, 6 and 7. It may be configured with an outer shell, panel, or wall capable of encapsulating and forming a structural enclosure capable of receiving 31. The construction of this enclosed structure can clearly provide further improved environmental protection for the dehumidification system 31 (FIG. 1) and the microwave reactivation system 33 (FIGS. 4, 5, 6 and 7). .

The overall design is an explosion-proof housing that can be deployed at the job site where an explosion-proof dehumidification system 31 designed with a microwave reactivation system 33 (FIGS. 4, 5, 6 and 7) is classified as a hazardous environment or location. An example application casing at 34 (FIG. 3) can be described. On the other hand, the same microwave reactivation system 33 (FIGS. 4, 5, 6, 7) enables heating in these systems to perform efficiently, while greatly reducing the power requirements and power consumption. As a standard desiccant dehumidification or HVAC system. It is extremely important to control side effects such as corrosion and breakdown of materials, systems and components caused by high moisture and moisture at work sites such as offshore and offshore. Furthermore, in association with potentially hazardous locations and volatile environments, removal of the protective coating exposes the underlying metal surface to ambient air in addition to the main concerns for coating, blasting and resurfacing the metal surface. Maintenance procedures and operations that must be performed on mechanical systems, electrical / electronic equipment and components are also severely adversely affected and damaged by these high humidity conditions. If the humidity levels in contact with these materials are unchecked or uncontrolled, the exposed metal surface may corrode, degrade or fail before the new protective coating is applied. Mechanical systems, electrical equipment and electronic components are also at risk of corrosion, deterioration and operational failure when exposed to these same uncontrolled damping and moisture conditions.

Deployment of the dehumidification system 31 (FIGS. 1, 3, 4) at the work site can significantly reduce the moisture concentration in the enclosure or area and thus mitigate or significantly reduce the risk of corrosion, degradation and subsequent system failure. have. Furthermore, by including the microwave reactivation system 33 (FIGS. 4, 5, 6, 7) in the dehumidification system 31 (FIGS. 1, 3, 4) this impairs optimal system performance. Enables to achieve significant reductions in electrical power requirements and power consumption, with or without delivery. This very important gain obtained using the microwave reactivation system 33 (FIGS. 4, 5, 6, 7) achieves significant energy savings without compromising the benefits of the dehumidification system and technology 31. Enable the ability. Incorporating the microwave reactivation system 33 in the dehumidification system 31 allows for dehumidification and the ability to operate very effectively in areas, applications and sites with restrictions on the availability of energy and electrical power sources. Since the dehumidification system 31 (FIGS. 1, 3 and 4) designed with the microwave reactivation system 33 (FIGS. 4, 5, 6 and 7) is portable, this is a corrosion maintenance or resurface Once multiple work projects, such as processing and recoating, are completed, they can be quickly moved to other applications or shop floors in the facility. For this configuration, FIGS. 2 and 4 show a microwave heating chamber 36 (FIG. 4) as part of the reactive or regenerating portion 38 (FIGS. 2, 4, 5, 6, 7 and 9). 5, 6 and 7) and desiccant rotor or wheel assembly 5 having a processing portion 35 (FIGS. 2, 4, 5, 6, 7, 8 and 9). The parts of the dehumidification system 31 (FIGS. 1, 3, and 4) including (FIGS. 2 and 4) are shown.

Process air flow 13 (FIGS. 2 and 4) is processed by high static suction blower and motor assembly 14 (FIGS. 2, 4 and 9) 35 (FIGS. 2, 4 and 6). ) And the perforated desiccant rotor / wheel assembly 5 through the core material 6 (FIGS. 2, 4, 6 and 7) and through which the motor assembly is passed through which the drying treatment air stream 13 is drawn. And release it into the enclosed space or area to be dehumidified and disposed of. The microwave reactivation system 33 (FIGS. 4, 5, 6 and 7) includes a microwave heating chamber 36 (FIGS. 4, 5, 6 and 7) comprising a glass ceramic coil assembly 39. And a reactivation portion 38 comprising a reactivation metal coil assembly 9. The microwave reactivation system 33 has a reactivation air stream 15 (FIG. 2) prior to contacting the desiccant core material 6 in the desiccant rotor / wheel assembly 5 (FIGS. 2, 4, 6 and 7). 2, 4, 6 and 7).

The second, high static suction blower 8 (FIGS. 2, 3, 4 and 8) has a perforated core material 6 (reactive metal coil assembly 9 and desiccant rotor / wheel assembly 5). 2, 4, 6 and 7) withdraw the heated reactivated air stream 15 as it flows through. This heated reactivation air stream 15 provides an inert effect on the retention properties of the desiccant core material 6 such that the moisture vapor trapped by the desiccant core material 6 is reactivated air stream 15 (FIG. 2, FIG. 2). 4, 6 and 7). This hot, moist, reactivated air stream 15 is drawn downstream and then discharged from the dehumidified and treated space or enclosure to the external surrounding environment.

(PLC) programmable logic controller panel 29 (FIGS. 3, 4, 5, 8, 9 and 10) controls various advance operations of the systems and components of dehumidification system 31, in particular A microwave reactivation system 33 (FIGS. 4, 5, 6 and 7) comprising a thermal fluid (not shown), a circulation source 40 and a return 41 pump (FIGS. 4 and 6), and Microwave reactivation system high voltage portion 40 such as magnetron 41, HV transformer 42, capacitor 43, diode 44, electrical conduit 45, waveguide 46 and stirrer blade and motor assembly 47. A) responsible for controlling the operation of the component (Fig. 6). PLC controller panel 29 (FIGS. 3, 4, 5, 8, 9 and 10) is used for reactivation 8 and treatment 14 blower (FIGS. 2 and 4), desiccant rotor / wheel The rotary motor and assembly 11 (FIGS. 2, 4, 5 and 8) are further controlled and the operation of the dehumidification system 31. The PLC controller panel 29 is located at the microwave heating chamber 36, downstream of the reactivation portion 38 and at the rear of the metal coil assembly 39 and downstream of the processing portion and at the rear of the desiccant rotor / wheel assembly 5. Are supported by inputs received from various air flow and temperature sensors 48, 49, and 50 (FIG. 6). Electrical with bolted lid 30, (PLC) programmable logic controller 29 and plug-in power cable connector panel 28 (FIGS. 3, 4, 5, 8, 9, 10) Boxes are typically housed in protection type enclosures of square or rectangular design. The PLC controller panel 29 has hinged lids and screw type fasteners 50 (FIGS. 3 and 4) and angles at various points for attachment and tight sealing of the lids. The electrical box 30, PLC controller panel 29 and plug-in power cable connector panel 28 protection type enclosure can be designed as a standard or explosion proof rating enclosure.

In a preferred design, the electrical box 30, PLC controller panel 29 and plug-in power cable connector panel 28 protective enclosure are constructed of stainless steel or aluminum. 2, 4, and 5, the desiccant rotor / wheel assembly 5 (FIGS. 2, 4, 5, 6, 7, 8) is a cross member 20a of the unit frame 16. and b) are housed in a rectangular cabinet 32 (FIGS. 1, 3, 4, 5, 8, 9 and 10) supported in (FIGS. 1 and 3).

In a preferred embodiment, the cabinet 32 (FIGS. 1 and 3) consists of stainless or welded aluminum coated with durable resistive enamel or air dried polyurethane corrosion resistant paint steel to resist corrosion. The cabinet 16 (FIGS. 1, 3, 4, 5, 8, 9 and 10), as shown, has a top wall and a bottom wall, spaced front and back walls, and opposing side walls. Equipped. As shown in the unit view 2 (FIGS. 1 and 5 and 8) adjacent to the bottom wall, the front wall has a treatment inlet 51 and a reactivation outlet 54. The treatment inlet 51 allows air flow to pass through the desiccant rotor / wheel assembly 5 to the treatment portion 35 (FIGS. 2 and 4). A suction filter (not shown) may be installed at the treatment inlet 51 (FIGS. 2, 3, 4), which is treated through a desiccant rotor / wheel assembly 5 and core material 6. Before entering the part 35, the floating contaminants or dust particles found in the collected process air stream 13 are removed. In some applications installation of an intake filter (not shown) prevents the accumulation of dust particles within the treatment portion 35 (FIGS. 2 and 4) and the desiccant rotor / wheel 5 and the overall operating dehumidification system 31 (FIG. There is a tendency to prevent clogging of the desiccant rotor / wheel assembly 5 core material 6 channel 7 which may affect the performance of 1).

In a preferred embodiment, the suction filter (not shown) consists of a metallic mesh filter which can be located at the treatment inlet 51 and is washable and can be removed for cleaning and rinsing of dust and particles. As also shown in the unit view 2 (FIGS. 1 and 2, 4, 5 and 8), the front wall further has a reactivation outlet 54 which releases moist air, which is reactivated. The air stream 15 flows out of the reactivation portion 38 through the desiccant rotor / wheel assembly 5 core material 6 and is expelled through the reactivation outlet 54 to release wet air into the atmosphere. To be. In an alternative embodiment, a manually operated damper assembly (not shown) having at least one or more rotating louvers is provided at the reactivation outlet 54 to selectively restrict air flow at the reactivation outlet 54. Can be installed. Use of this feature can increase heat retention in the reactive portion 38, which accelerates inertness and significantly affects the retention capacity of the desiccant core material 6, thereby drying the desiccant rotor / wheel assembly 5 core. Drying is applied to the desiccant core material 6 in the desiccant rotor / wheel assembly 5 as it rotates back to the treatment portion 35 to increase the efficiency of the material 6 and thus resume the sorption (adsorption) operating cycle. Accelerate In a preferred embodiment, there are two explosion-proof high static suction blower and motor assemblies, one is a forwardly curved blower with a direct drive motor assembly 14 located in the processing portion 35, the other is It is an axial type blower with a direct drive motor assembly 8 located in the reactivation portion 38 (FIGS. 2 and 4).

In both treatment sections 35 and reactivation sections 38, the blower and direct drive motor assembly housings 55, 56 (FIGS. 2 and 4) are divided into cabinet 32 compartment bases by reinforced L and C shaped brackets. And in and to the sidewalls and the top wall, and to the bolt and nut assembly (not shown) (not shown). As shown in Figures 2 and 4, the treatment outlet 52 emits a drying treatment air stream 13 which is forward curved high static blower (not shown) driven by an electric direct drive motor (not shown). 14 is withdrawn into the enclosure to be dehumidified directly through the desiccant rotor / wheel assembly 5 core material 6 channel 7 in the treatment portion 35 and through the treatment outlet 52. In an alternative embodiment, treatment outlet 52 (dry air source) has a dry treatment air stream 13 at treatment outlet 52 (dry air source) to increase air pressure when required in a dehumidified area or enclosure. A manually operated damper assembly (not shown) may be mounted with at least one rotating louver to selectively limit the pressure. The second blower and motor assembly 8 (FIGS. 2 and 4) is located at the outlet 54 of the reactivation portion 38 and is a direct drive motor assembly 8 installed in and fixed to the cabinet 32 compartment. It is a high static axial type blower. As shown in FIGS. 2 and 4, this high static axial type blower 8 discharges the reactivation air stream 15 at the reactivation outlet 54, which is a microwave reactivation system 33. ) Is drawn through the heating coil assembly 9 into the reactivation suction and flows through the perforated desiccant rotor / wheel assembly 5 core material 6. This high static suction blower 8 is driven by an electric direct drive motor (not shown).

In an alternative embodiment, the reactivated outlet 54 (wet air release) has a manually operated damper assembly having at least one rotating louver that selectively restricts the air flow 15 at the reactivated outlet 54 ( Not shown) can be mounted. This restriction of the reactive air stream 15 causes the temperature in the reactive portion 38 to rise, providing the effect of deactivating the desiccant rotor / wheel 5 core material 6 holding capacity. This restriction allows the core material 6 to release accumulated moisture into the reactivating air stream 15 more quickly and more. This damper assembly is used only when required. In a preferred embodiment, as shown in FIGS. 2 and 4, an electric direct drive motor (not shown) used to drive the high static suction blowers 14, 8 in the treatment 35 and reactivation 38 portions. All are designed to be explosion proof or to be completely enclosed intrinsically safe for use in hazardous environments. However, it is understood that the electric direct drive motors driving the treatment and reactivation partial blowers 14, 8 need not necessarily be electric motors.

In alternative embodiments, hydraulic, pneumatic or vapor pressure drive motors designed and approved to have hazardous location classifications may be installed which may be used to control the high static suction blower 14 and the reactivation portion 38 of the treatment portion 35. It can be used to achieve the same task of driving the high static suction blower 8. As shown in unit views 1, 3 adjacent to the bottom wall (FIGS. 1 and 3, 4 and 9), the back wall has a treatment outlet 52 and a reactivation inlet 53.

The treatment outlet 52 allows for the release of a drying treatment air stream 13 which is drawn through the desiccant rotor / wheel assembly 5 core material 6 in the treatment portion 35 by a forward curved high static blower 14. Allow. This high static blower 14 is located at a treatment outlet 52 that is firmly installed and fixed within the cabinet 32 compartment. The forward bend high static blower 14 is driven by an electric direct drive explosion-proof motor (not shown). The dry process air stream 13 is discharged and propagated at high speed directly into the enclosure or region to be dehumidified and treated through the process outlet 52. Also as shown in unit views 1, 3 (FIGS. 1 and 3, 4, 9), the rear wall further has a reactivation inlet 53 which allows ambient air to flow into the reactivation portion 38. Equipped. In an alternative embodiment, the intake of the reactivation inlet 53 may be equipped with an intake filter (not shown) that removes floating contaminants or dust particles found in the incoming air stream entering the reactivation portion. In some applications, installation of these suction filters prevents dust particles from accumulating in the reactivation 38 or treatment 35 portion (FIGS. 2 and 4) and ultimately in the desiccant rotor / wheel 5 core material (6). And desiccant rotor / wheel assembly (5) core material (6) channels (7) which may affect the performance of the overall operating system.

This type of suction filter is now described in detail. In a preferred embodiment, two industrial types of metal mesh filters (not shown) are installed to avoid inhalation of dust particles or foreign matter.

As shown in the unit views 2, 4 (FIGS. 1, 3 and 4), one of these filters (not shown) is located at the inlet of the treatment inlet 51 and the other is the reactivation inlet ( 53). The filter (not shown) consists of a metallic mesh that is washable and can be removed for cleaning and rinsing dust and particles.

The present invention; The microwave reactivation system 33 for standard and explosion proof dehumidification systems is now described in more detail. As shown in FIGS. 2, 4, 6 and 7, the reactivated air stream 15 is drawn into the intake 53 of the reactivated portion 38 and the overheated microwave reactivation system metal coil assembly. (9) flows through. The air temperature of the reactive air stream 14 rises sharply to a set point (approximately 200 to 250 ° F.) before contacting the desiccant rotor / wheel assembly 5 core material 6. The excess heated reactivated air stream 15 through the desiccant core material 6 non-magnetically channels the core material 6 channel 7 impregnated with the desiccant coating. This high heating in the reactivated air stream 15 causes an inert effect on the retention properties of the core material 6, in some cases causing larger moisture vapors / droplets to be discharged into the reactivated air stream 15 and the reactivation outlet. Release to ambient through (54). The reactivation outlet is equipped with a manually operated damper assembly (not shown) having at least one rotary louver that selectively restricts air flow at the reactivation outlet 54.

As mentioned above, the use of this feature in some applications may be recommended to increase the retention of heat in the reactive portion 38 which is more embedded in the desiccant rotor / wheel assembly 5 core material 6. It is possible to deactivate the holding capacity of the desiccant core material 6 which causes the moisture vapors to discharge more rapidly.

Thus, increasing the temperature in the reactivation portion 38 in the desiccant core material 6 is such that in some operating cases it can resume its water retention capacity when rotating back into the treatment portion 35, also known as the sorption (adsorption) cycle. Faster drying may be promoted. As shown in the unit views 1, 2, 3 (FIGS. 1 and 3, 4, 5, 8 and 9), the reactivation inlet 53 and outlet 54 ports and treatment part inlet Both 51 and outlet port 52 are designed and adapted to receive flexible or rigid ducts for air recirculation and distribution. In the case of an enclosed tubular design the duct is also used to maintain the air flow pressure and makes it possible to deliver and distribute the dry air to a specific target area to be dehumidified not adjacent to the dehumidification unit 31. As shown in FIG. 3, the side walls have external access panels 56a-56i having latch assemblies (not shown) that can be locked or unlocked to allow easy access during repair and maintenance. These panels 56a to 56h (except 56b) (FIG. 4) allow for quick access to all dehumidifying unit 31 operating systems and main components.

These operating elements are the desiccant rotor / wheel assembly 5 and the rotary motor assembly 11 (FIGS. 2 and 4), the microwave reactivation system 33 (FIGS. 4, 6 and 7) and the high voltage component 40. ) And elements 41 to 47, a microwave heating chamber 36 containing a glass-ceramic coil assembly 39, a metal coil assembly 9, and a supply and return thermal fluid circulation pump 40. , A reactivation zone 38 containing 41. Other accessible elements in process zone 35 and reactivation zone 38 are high static blowers with direct drive motor assemblies 8, 14. These access panels 56a to 56h (except 56b) (FIG. 4) are all desiccant rotor / wheel assembly 5 and rotary motor assembly 11, blowers and motor assemblies 8, 14 ), In particular a small window (not shown) may be designed and provided to allow visual inspection of various elements, including the microwave reactivation system 33 and various elements thereof. The other cabinet 32 side wall access panel 56b (FIG. 4) ships a dehumidification system 31 for the storage of quick disconnect power cables (not shown) and flexible duct sleeves (not shown) used for air distribution. Allow access to compartments used during Referring to the desiccant rotor / wheel assembly 5 (FIGS. 2, 4, 5, 6 and 8), shown in FIG. 4 disposed in front and rear of the desiccant rotor / wheel assembly 5. As described above, the cabinet 32 is vertically mounted upright in the cabinet 32 accessed through the panel 56f between its two inner walls. The desiccant rotor / wheel assembly 5 is mounted on two (2) sets of roller bearings 58 (FIGS. 2, 4, 5 and 8) permanently secured to the base at the 5 and 7 o'clock positions. Is supported.

Desiccant Rotor / Wheel Assembly (5) The metal sheath 57 operates within the reactivation zone and process zone that incorporates the microwave reactivation system 33. It is held on two (2) sets of roller bearings 58 which not only provide support but also allow rotational movement.

In a preferred embodiment there is an explosion-proof electric drive motor 11 (FIGS. 2, 4, 5 and 8), which is provided to drive the rotation of the desiccant rotor / wheel assembly 5 along its longitudinal axis. do. In the case where a standard non-explosion-proof motor is installed, in order to mitigate and avoid the risk of explosion caused by sparking from the brush in the electric motor, the electric-driven rotary motor 11 also has a housing (classified as explosion-proof rating). (Not shown). In alternative embodiments and designs adapted for some applications, the electrically driven rotary motor 11 may include an internal ventilation fan for cooling the electrically driven rotary motor 11. Alternatively, the electric drive rotary motor 11 can be designed and fitted with an air bleed / purging device (not shown). This air outlet / purifier can build up a static pressure of air in the casing to reduce any buildup of flammable gases or volatile vapors and maintain conditions within acceptable and acceptable levels. This device prevents and avoids the accumulation and expansion of explosive volatile gases and vapors into an electrical source that could lead to a high risk of sparking and ignition.

Although the preferred embodiment demonstrates the use of an electrically driven rotary motor 11, it is necessary to understand that in other alternative embodiments the motor could be energized and driven pneumatically or hydraulically to perform the same function. . As shown in FIGS. 2, 4, 5 and 8, the electrically driven rotary motor 11 is connected to the desiccant rotor / wheel assembly 5 by means of a gearbox (not shown), which in turn -Drive the tension drive belt (FIGS. 2, 4, 5, 6 and 8); A gearbox (not shown) is provided to drive the rotary motor 11 at a reduced speed to achieve a specific desiccant rotor / wheel assembly 5 rotation.

In a preferred embodiment, the desiccant rotor / wheel assembly 5 is driven to complete one full revolution for every 8 to 10 minutes. This rotation could vary depending on the diameter and thickness of the desiccant rotor / wheel assembly 5 as well as the particular application and operating environment that may be used. The electric drive rotary motor 11 is connected to a junction box (not shown) which is explosion-proof and rated. The electrically driven rotary motor 11 is an electrical conduit system assembled in a dehumidification system frame 16 (FIGS. 3, 4, 5, 8, 9 and 10) for protection against external environments and elements. Throughout the figure, it is connected to a programmable logic controller (PLC) panel 29 (FIGS. 3, 4, 5, 8 and 10) that is explosion-proof rated for the hazardous location. This electrical conduit system (not shown) is internally comprised of an electrical line (not shown) enclosed in a conduit in a sealed metal tubing (not shown) and connected to a junction box (not shown).

In alternative embodiments, it is necessary to understand that electrical conduit systems that receive electrical lines / wiring connected to the junction box can be designed and externally received on the unit. As best demonstrated in FIGS. 2, 4 and 6, desiccant rotor / wheel assembly 5 includes an electrically conductive metal sheath or casing 57 and a monolithic core that is a desiccant core material 6. do. In a preferred embodiment, the casing or sheath 57 is made of aluminum. However, it will be appreciated that in alternative embodiments, other types of electrically conductive alloys or metals could also be used to fabricate the desiccant rotor / wheel assembly 5 sheath or casing 57. The core of desiccant material 6 shown in FIG. 2 is perforated and has a matrix composed of small uniform tunnels or channels 7 with walls shaped like honeycombs, circles or squares. These small, uniform channels 7 extend parallel to the axis of airflow (both of the process zone 35 and the reactivation zone 38). Desiccant Core Material (6) Tunnel walls are constructed of a nonmetallic, noncorrosive inert composite. These walls are made of extruded fiberglass paper fibers with openings measured at least 5 microns in diameter, and also include other types of desiccant materials that can withstand repeated temperature fluctuations and moisture cycling. Preferably it is coated / impregnated with a solid dehumidifying type material which can be, but is not limited to, silica gel, titanium silica gel, molecular sieves or lithium chloride. Desiccant material is evenly distributed through the core 6 (FIG. 2) of the desiccant rotor / wheel assembly 5.

When the desiccant core material 6 is cooled and dried, it extracts water from the air stream 13 because of its low vapor concentration and pressure, as compared to the inlet air stream which normally has a high vapor concentration (called sorption). Conversely, the desiccant core material 6 may release moisture as induced by the heated air stream 15 because under these conditions the desiccant material tends to have a high vapor concentration and pressure released by the introduction of heat. (Referred to as desorption). The desiccant rotor / wheel assembly 5 (FIGS. 2 and 4) rotates continuously about its longitudinal axis, circulating through the process zone 35 and the reactivation zone 38 in a continuous process and allowing reuse. It is believed to be an active desiccant rotor / wheel as it passes through the road to carry out the task of adsorption and desorption. This alternating cycle from the high vapor pressure to the low vapor pressure of FIGS. 2 and 4 allows water to be adsorbed and desorbed from the process air stream 35 to release water into the reactivation / process inlet air stream 38.

In a preferred embodiment, as shown in FIGS. 2, 4, 6 and 7, the desiccant dehumidification system 31 is a microwave reactivation system 33 metal coil assembly (located in the reactivation zone 38). The reactivation air stream 15 heated by 9) is used. This heated reactivation airflow 15 passes through channels 7 of the desiccant core material 6 in the desiccant rotor / wheel assembly 5 and then releases moisture back into the reactivation airflow 15 to the atmosphere. It has a self-clearing effect.

Since water removal in the desiccant rotor / wheel assembly 5 core material 6 takes place in the gas phase, there is no liquid condensate. Therefore, the desiccant dehumidification system 31 can continuously extract moisture from the process air stream 13 even when the dew point of the process air stream 13 is below the freezing point. Thus, compared to conventional heat-cooled hybrid or refrigerant based dehumidification systems, desiccant dehumidification system 31 tends to be particularly suitable for operation in an area that is extremely versatile in various climatic conditions and has a cold and wet climate.

In a preferred embodiment, the desiccant rotor / wheel assembly 5 is installed and used in a standard or explosion-proof desiccant dehumidification system 31, and any approved desiccant rotor / that meets industry standards and approved equipment specifications. It can be supplied by the wheel manufacturer.

In a preferred embodiment, the portion of the core 6 of the desiccant rotor / wheel assembly 5 (FIG. 2) that is being reactivated or regenerated, reactivates the reactivation zone 38 of the desiccant rotor / wheel assembly 5. The cabinet 32, which defines and divides the pie-shaped zone of approximately one quarter (a quarter) of the desiccant rotor / wheel assembly 5 core material 6 from the remainder of its core 6, at the same time. It is divided by the V-shaped partition member 59 (FIG. 2) attached to it. The remaining portion (FIG. 2) of approximately three quarters (three quarters) of the desiccant rotor / wheel assembly 5 core material 6 defines the process zone 35 of the desiccant rotor / wheel assembly 5. . The reactivation portion of the desiccant rotor / wheel assembly 5 core material 6 may cover between 1/4 and 1/3 of the area of the surface core material 6 of the desiccant rotor / wheel assembly 5. . In a preferred embodiment, the reactivation portion of the desiccant rotor / wheel assembly 5 core material 6 covers one quarter of the surface core area. 2, 4, 5, and 8, during operation of the dehumidification system 31, a desiccant rotor / wheel assembly 5 defining a process zone 35 and a reactivation zone 38. Portions of the core material 6 are always changing as a result of the rotation of the desiccant rotor / wheel assembly 5 by means of an electrically driven rotary motor 11 connected by a rotating belt 12. Thus, as the portion of the desiccant rotor / wheel assembly 5 core material 6 exposed to the treatment airflow 13 defines the process zone 35, the desiccant rotor likewise exposed to the reactivation airflow 15. The portion of the / wheel assembly 5 core material 6 defines the reactivation zone 38. Once 3/4 (75%) of the desiccant rotor / wheel assembly 5 core material 6 surface (FIGS. 2, 4, 5 and 8), the process air flow 13 is subjected to a high static blower ( 14) (FIG. 2 and FIG. 4) are drawn into the process inlet 51 through the process zone 35 and propelled through the process outlet 52 by the static type blower 14.

At the same time, the reactivation airflow 15 flowing in the direction opposite to the direction of the processing airflow 13 is carried out by a series of parallel candles of the microwave reactivation system 33 in the reactivation zone 38 by means of a high static shaft type blower 8. It is drawn into the reactivation inlet 53 through a part of the parallel super heated metal coil assembly 9. The reactivation air stream 15 continues its path through the V-shaped quarter (25%) portion of the desiccant rotor / wheel assembly 5 core material 6 surface. The reactivation air stream 15 saturated with water vapor is then discharged by the high static shaft type blower 8 and discharged to the atmosphere through the reactivation outlet 54. Thus, as shown in FIGS. 2, 4, 5 and 8, as it rotates, the desiccant rotor / wheel assembly 5 is divided into two zones; It will be appreciated that there are two completely separate backflow or counter airflows within the process zone 35 and the reactivation zone 38. Two (2) pressure seals mounted at the front and rear of the desiccant rotor / wheel assembly 5 at the edge of the V-shaped partition member 59 (FIG. 2) and at the extremes of the outer shell rim. (60) (FIGS. 2, 4 and 6) separate and completely isolate the treatment airflow 13 from the reactivation airflow 15 and within two working zones located within the dehumidification system 31 cabinet 32. It is provided to eliminate any possible air leakage or moisture crossover.

In a preferred embodiment, the frame 16 (FIGS. 1, 3, 4, 5, 8, 9, 10) will serve as ground, but in other embodiments, alternatives including electrical grounding. It will be appreciated that an alternative grounding system can be used.

4, 5, 6 and 7, the microwave reactivation system 33 will now be described in more detail. The microwave reactivation system 33 may be installed in a standard or explosion proof rated desiccant dehumidification system 31.

In a preferred embodiment, the microwave heating chamber 36 portion of the microwave reactivation system 33 includes an explosion proof construction casing 34 comprising microwave electrical and electronic high voltage component 40 elements for use in hazardous locations and in volatile environments. Surrounded by

This microwave reactivation system 33 (FIGS. 4, 5, 6 and 7), through the material and the fluid, quickly moves molecules inside to an excited state, causing atomic motion to generate heat. It generates strong heat quickly by generating electromagnetic RF waves. In a preferred embodiment, the medium used to store and transfer this heat is a synthetic thermal fluid (not shown) located in the hollow coil assemblies 9, 39 of the closed loop circuit. As illustrated in FIGS. 2, 4, 6, and 7, this thermal fluid is moved by feed pump 40 and conveying pump 41, so that a first series of side by side glass located in microwave heating chamber 36. Flowing through ceramic coil assembly 39, in the heating chamber fluid molecules are processed and exposed to electromagnetic waves, causing excitation, high temperature rise and heat generation within the fluid. This superheated thermal fluid (not shown) is then pumped, in the path of the reactivation air stream 15 and in a second series of side by side located below the compartment called the reactivation zone 35 which brings direct contact. Flow through the metal coil assembly (9).

Heat transfer from the superheated heat fluid (not shown) in the metal coil assembly 9 in the reactivation zone 38 reactivates as it contacts and passes across the surface of the assembly. The temperature of the air stream 15 is substantially raised. This heated reactivation air stream 15 is then used to inactivate the perforated desiccant core material 6 in the desiccant rotor / wheel assembly 5 as it flows through it. This heated air stream has a self-extinguishing effect on the desiccant core material 6 to release the retained accumulated moisture and discharge it into the atmosphere through the reactivation outlet 54. This heat generation reactivation process 38 removes water vapor from the desiccant core material 6 and significantly lowers its vapor concentration and pressure so as to re-energy the desiccant core material 6 in the air dehumidification process zone 35. Can be converted. In alternative embodiments and in the spirit of the present invention, the microwave reactivation system 33 is designed and used as a heat generating system and also a desiccant dehumidification system that must generate and incorporate a heat source in order to successfully achieve the dehumidification treatment. It is provided in (31) as well as in any mechanical heating / cooling hybrid or refrigerant type dehumidification system (not shown).

In the above-mentioned type of dehumidification system included, a heat source is required to raise the ambient inlet airflow temperature to expand the air volume and then quickly cool the treated airflow as it passes through the refrigerant cooling coil.

This enables the extraction of suspended water vapor floating in the air stream through condensation. Accordingly, the microwave reactivation system 33 may also be adapted to improve any conventional air treatment and conditioning, mechanical power or heat generation system to provide a highly effective and cost effective ultra heat source. It may be a modular system.

The microwave reactivation system 33 (FIGS. 4, 5, 6 and 7) is divided into two parts, namely the control part 29 and the high voltage part 40. In a preferred embodiment, the control portion consists of a programmable logic controller, also referred to as PLC panel 29, whose casing is explosion proof. PLC panel 29 controls and manages power output and desired operating settings, and monitors various system functions, interlocking protection and safety devices. Further, in a preferred embodiment, the components of high voltage portion 40 (FIG. 6) are encased in explosion-proof rated and / or explosion-rated rated housing (not shown). Referring to FIG. 6, these components serve to raise the voltage to a much higher voltage, which is then converted into microwave energy in the microwave heating chamber 36. Generally, the control portion includes an electronic switch called an electromechanical relay or triac. Once the system is switched on, meaning that all systems are "on", the control circuitry of the PLC controller panel 29 generates a signal that transfers the voltage path to the high voltage transformer 42 by activating a relay or triac. do.

By adjusting the on-off ratio of this activation signal, the control section controls the flow of voltage by the high voltage transformer 42 to control the on-off ratio of the magnetron tube 41 and the output power to the microwave heating chamber 36. In the high voltage portion 40 (FIG. 6), the high voltage transformer 41 along with the arrangement of the special diode 44 and the capacitor 43 serves to increase the voltage to an extreme high voltage for the magnetron 41. The magnetron 41 is dramatically converted to a high voltage to be accommodated in the undulating waves of electromagnetic energy. This microwave energy is then transferred into a rectangular metal channel identified as waveguide 46 to guide microwave energy or waves into microwave heating chamber 36. Efficient and uniform distribution of electromagnetic energy or waves in the entire microwave heating chamber 36 is achieved by the rotating metal stirrer blade and motor assembly 47. In a preferred embodiment (FIGS. 6 and 7), a high tension and heat resistant glass ceramic hollow tube capable of withstanding wide temperature fluctuations is employed in the construction of the glass ceramic coil assembly 39 located in the microwave heating chamber 36. Is used. Electromagnetic energy or waves generated by the magnetron 41 are dispersed by the metal stirrer blades and the motor assembly 47 to come into contact with the entire glass ceramic coil assembly 39 located in the microwave heating chamber 36.

Thermal fluids (not shown) flowing in these hollow coils are then processed simultaneously and exposed to this electromagnetic energy resulting in molecular excitation, atomic motion, high temperature rises from 250 ° F to 300 ° F, and heat generation.

This superheated thermal fluid is simultaneously transferred to the siphon and propelled by the feed pump 40 to flow into and through the metal coil assembly 9 located below the compartment called reactivation zone 38.

In a preferred embodiment, as described in FIGS. 4, 5, 6 and 7, hollow tubing of the metal coil assembly 9 located in the regeneration zone 38 is adaptable to extreme temperature fluctuations. It consists of steel, aluminum or other high tensile and heat resistant metals that can effectively retain and radiate heat. It is important to note that the diameter of the tubing of the metal coil assembly 9 in the regeneration zone 38 may be smaller or the same size as compared to the diameter of the glass-ceramic coil assembly 39 in the microwave heating chamber 36. Can be. Also in a preferred embodiment, the distance between the coils of the metal coil assembly 9 in the regeneration zone 38 is narrower, compared to the glass-ceramic coil assembly 39 located in the microwave heating chamber 36, and in practice Although the number of coils is 1.5 times more, in alternative designs, the number may be up to 2.5 times more. This structure allows for greater temperature rise and more efficient heat transfer and distribution to the regenerative air stream 15, because this air stream is surfaced through the metal coil assembly 9 in the regeneration zone 38. This is because it passes through the contact. As shown in FIGS. 6 and 7, the tightly spaced coil design of the metal coil assembly 9 is more effective and significant that radiates from the heated thermal fluid into the metal coil / pipe and into the regeneration air stream 15. Enables heat transfer

The temperature rise of the regeneration air stream 15 of 170 to 200 degrees is achieved because the air flow passes through the metal coil assembly 9 in the regeneration zone 38. The induction of this temperature rise and high heat in the regeneration air stream 15 is magnetic with respect to the desiccant impregnated core material 6 in the desiccant rotor / wheel assembly 5. Has an elimination effect. This superheated regeneration air stream 15 causes the desiccant impregnated core material 6 to rapidly release its retained accumulated water vapor back to the regeneration air stream 15 through a reactivation outlet 54. Allow it to be discharged to the surroundings and out of the enclosure or area being dehumidified. The desiccant core material is then ready for reuse because the desiccant rotor / wheel assembly 5 rotates about its longitudinal axis and back into the air dehumidification process zone 35. Heated thermal fluid (not shown) is simultaneously propulsion and siphoning because the thermal fluid continues to transmit and radiate heat as it flows through the metal coil assembly 9 in the regeneration zone 38. Because. As shown in Figures 4 and 6, the continuous and simultaneous siphoning and propulsion of the heated thermofluid (not shown) is done in the same way by the second pump, which is the conveying pump 41. This conveying pump 41 draws the heat fluid back into the glass-ceramic coil assembly 39 in the microwave heating chamber 36 as part of the closed loop circuit of the coil assemblies 9 and 39. Thus, in a permanent cycle, the thermofluid (not shown) undergoes repeated exposure to microwave electromagnetic energy, which causes molecular excitation, atomic motion, high temperature rises from 250 ° F to 300 ° F, and heat generation.

As a result, the thermofluid passes back and forth through the microwave heating chamber 36, which rapidly absorbs the hot heat, and as part of the microwave regeneration system 33, toward the regeneration zone 38 which dissipates this hot heat by dissipation and radiation. It is a moving medium. In the preferred embodiment, in Fig. 6, the thermal fluid circulation pumps 40, 41 have an explosion proof construction and rating, but alternative non-explosion proof types may be installed. Modulating and circulating the power to the high voltage portion 40 is controlled by the PLC controller panel 29 using a data feed provided from a temperature and air flow sensor located within the dehumidification system 31. As shown in FIG. 6, there are two temperature thermocouple sensors 48, 49, one located in the microwave heating chamber 36 and the other located in the regeneration zone 38. The temperature sensor 49 located in the regeneration zone 38 has an auxiliary function which is a function of the air flow sensor. The third sensor 50, which functions as an air flow sensor, is located in the regeneration zone 38. All sensors are mounted in place by support brackets and are interconnected to the control parts and circuits in the PLC panel 29 by cables installed in a system of electrical metal conduits (not shown).

These sensors enable the detection of temperature and air pressure fluctuations in the microwave heating chamber 36, the regeneration zone 38 and the process zone 35, relaying this information data to the PLC controller panel 29, and the PLC The controller panel 29 in turn controls the high voltage portion 40 to direct output power to the microwave heating chamber 36. As a result, in FIG. 6, the temperature thermocouple sensor 48 located in the microwave heating chamber 36 automatically generates the microwave energy required for the microwave regeneration system 33 to achieve and maintain the desired high temperature setting as needed. To operate and modulate. Microwave heating chamber 36 is used to ensure proper heat transfer to the thermal fluid as the heat fluid flows through coil assembly 39 in microwave heating chamber 36 into coil assembly 9 in regeneration zone 38. This temperature setting within is necessary. This thermocouple sensor 48 detects the temperature in the microwave heating chamber 36 as it exits from the glass-ceramic coil assembly 39 containing the heated thermofluid. As shown in FIGS. 4, 5, 6, and 7, the temperature sensor 48 in the microwave heating chamber 36, the temperature and air flow sensor 49 in the regeneration zone 38, and the process zone ( This interaction between the air flow sensors 50 in 35 provides real time data / information to the PLC controller panel 29. Upon obtaining this information, the PLC controller panel 29 controls the high voltage portion 40, which is part of the microwave regeneration system 33, so that the desiccant rotor / wheel assembly 5 cores in the air dehumidification system 31. Ensure that the designated regeneration air stream 15 temperature is achieved and maintained for effective regeneration / reactivation of the material 6. In turn, the air flow pressure sensors 49, 50 in both the regeneration zone 38 and the process zone 35 ensure that the proper air flow static pressure is kept constant. These sensors are also safety devices that identify and signal alarms on the PLC controller panel 29 screen during operation in case of malfunctions such as low regeneration temperatures or a drop in air flow pressure.

These sensors also signal by the control circuits in the PLC controller panel 29 when the temperature exceeds a predetermined high temperature limit or when there is a significant drop or loss of air flow through the system due to breakage of the inlet or outlet ports. Will shut down the unit.

In a preferred embodiment, the electrical connections of these components to each other and to the control portions of the PLC controller panel 29 of these components are configured and partly connected to the dehumidification system frame 16 but are maintained. And several electrical conduit systems (not shown) accessible for verification. In a preferred embodiment, all of the electrical conduits and wiring in the dehumidification system 31 are designed and rated for use in hazardous and unstable situations. In alternative embodiments, it will be appreciated that the microwave reproduction system 33 includes design modifications that allow for variations in performance. This modification, whether a standard desiccant dehumidification, HVAC or explosion proof dehumidification system, will determine the size, output capacity and operating range to adapt to any dehumidification system 31 requirements.

The following is the resumption of the operation of the microwave regeneration system 33 in the dehumidification system 31. As shown in FIGS. 2 and 4, upon installation of the dehumidification system 31, the desiccant rotor / wheel assembly 5 is driven to rotate by the rotary motor 11 and the belt assembly 12.

As a result, both the process zone 35 and the regeneration zone 38 high static blowers 8, 14 are operated and operated. Process zone 35 The fixed pressure blower 14 draws air flow 13 through the process inlet 51 and a filter (not shown) from ambient air or from the enclosed space defined in FIG. 2. The process air stream 13 is held by an inner channel 7 impregnated with a hygroscopic material that acts as a moisture magnet when passing through the desiccant rotor / wheel assembly 5 core material 6. That takes away his vapor. As a result, it exits the desiccant rotor / wheel assembly 5 and is exhausted by the fixed pressure blower 14 from the process zone 35 through the treatment outlet 52 into an enclosure or space that must be treated and humidity controlled. Dried air is obtained. The dry air supply fixed pressure blower 14 at the treatment outlet 52 provides a variable flow rate [CFM of at least 2.5 to 3.0 + inches of water column (WC) to provide an effective dry air distribution in the space or enclosure to be treated and dehumidified. (cubic feet per minute)] will maintain the recommended air flow static pressure. The supply of dry air stream 13 in this process zone 35 has an extremely low moisture content or is greatly reduced to a desired or desired moisture level. At the same time, the fixed pressure blower 8 of the regeneration zone 38 draws the regeneration air stream 15 out of the ambient air and through the reactivation outlet 53 and a filter (not shown) defined in FIG. 2.

In a preferred embodiment, the flow rate of regeneration air stream 15 will be maintained at least 15 cubic meters / minute (530 cubic feet / minute). As the regeneration air stream 15 passes through the regeneration zone 38, the result of hot heat transfer radiated from a heated thermofluid (not shown) in the metal coil assembly 9 that is part of the microwave regeneration system 33. As its temperature increases immediately. There may be reasonable variations in the regeneration air stream 15 temperature, but the recommended operating temperature of the regeneration air stream 15 should reach 120 ° C. to 150 ° C. (250 ° F. to 300 ° F.). The superheated regeneration air stream 15 then flows through the desiccant rotor / wheel assembly 5 core material 6 saturated with water vapor.

This superheated regeneration air stream 15 serves to regenerate the V-shaped region 59 of the desiccant rotor / wheel assembly 5 core material 6. The high heat has a demagnetizing effect on the inner channel 7 of the porous desiccant core material 6 and thus causes the desiccant core material 6 to expose the vapor to the process zone 35 air stream 13 from the desiccant. The rotor / wheel assembly 5 causes the discharge back into the regeneration air stream 15 previously collected and retained in the core material 6. The regenerated air stream 15 with moisture is then discharged by means of a fixed pressure blower 8 through the reactivation outlet 54 and from the space or enclosure to be treated and dehumidified.

It is recommended that the regeneration zone 38 discharge temperature exiting the reactivation outlet 54 does not exceed 50 ° C. (122 ° F.). During the rotation of the desiccant rotor / wheel assembly 5, before entering the process zone 35 again, the desiccant core material 6 is reduced in order to greatly reduce the vapor pressure of the desiccant core material 6 to improve its enormously effective absorption properties. Is cooled. A slow rotational speed (one revolution every 8-10 minutes) of the desiccant rotor / wheel assembly 5 is required to enable cooling of the desiccant core material 6.

While the foregoing description and the accompanying drawings are directed to certain preferred embodiments of the present invention and to specific regeneration and heating methods for the present dehumidification systems, various modifications, changes, and modifications may be made without departing from the spirit of the present invention. You will know well.

Claims (7)

Heating, Ventilation and Air Conditioning (HVAC) system,
A cabinet comprising a ventilation path;
A microwave heating zone consisting of a microwave unit and a coil assembly; And
Including a blower for heating the air flow to discharge from the cabinet by introducing a flow of air into the ventilation path of the cabinet across the coil assembly,
The microwave unit generates and receives a microwave therein and the coil assembly receives a thermal heating fluid therein, wherein the coil assembly includes at least a portion of the coil assembly positioned within the microwave unit and the coil assembly. Wherein at least another portion of the is positioned to be positioned in the ventilation path. The coil assembly of claim 1, wherein the coil assembly comprises at least two interconnected coils as part of a closed loop system, wherein the first coil is substantially positioned in the microwave heating chamber and the second coil assembly is substantially in the ventilation path. Heating, ventilation and air conditioning system. 3. The heating, ventilating and air conditioning system of claim 2 further comprising a pump for substantially continuously pamping the heating fluid through the coil assembly. 3. The heating, ventilating and air conditioning system of Claim 2 wherein said first coil is comprised of a ceramic material and said second coil is comprised of a metal. The heating, ventilation and air conditioning system of claim 1 further comprising at least one of a compressor, condenser coil and evaporator coil. A method of treating the atmosphere through heating, ventilation and air conditioning (HVAC) units, the method of
Heating the thermal fluid in the coil assembly by exposing the microwaves in the microwave unit to at least a first portion of the coil assembly and a thermal fluid contained within the coil assembly;
Drawing air through the blower into the ventilation path in the cabinet as airflow;
Pumping the heated thermal fluid around the coil assembly, wherein at least a second portion of the coil assembly is located in the ventilation path;
Heating the air stream by attracting the air stream across the second portion of the coil assembly; And
Evacuating the heated air stream from the cabinet. 7. The method of claim 6, further comprising passing the air stream across a condenser coil and an evaporator coil, wherein the condenser coil and the evaporator coil are connected to a compressor in a closed loop, the second portion of the coil assembly, the capacitor. Wherein said step of passing said air stream over a coil and an evaporator coil serves to air condition and dehumidify said air stream.

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