JPS59501279A - Power unit for absorption heat exchange system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Power unit for absorption heat exchange system Technical field The present invention provides a combined generator and condenser power unit for absorption heat exchange/stem. Regarding the cut. More specifically, the present invention (I'i absorption heat bonop system) or an apparatus for use with any absorption refrigeration system.

The device includes a plurality of co-located pipes surrounding a vertical central pipe. nothing. Each pipe forms an annular chamber adjacent to the next chamber surrounding the central pipe The center S is gradually enlarged to the extent that it is sufficient to do so. AiJkicha/ha is the central pipe and (C a plurality of pipes surrounding the pipe V) connected members (/2, so the upper end and and closed at the F end. Fusumafuri 1st 1 to provide heat to the inside of the central pipe The cooling fluid engrafts the outer surface of the hive with the largest possible diameter. Lic -g- equipment is provided. The refrigerant is completely desorbed from the absorbent on the inner wall of the chatuba, It is suspected that the refrigerant on the outer rim of the chamber is absorbed by the refrigerant on the inner wall of the annular chamber. 1. A device for completely discharging the liquid is also installed. Absorption heat exchange/steam So that it circulates down to the appropriate 9 elements of tem? Division and absorbent are flexible @kari and 1 threat medium and other -Collected at the bottom of the chatuba. As a general rule, there are differences between various concentrations of chemical bath solutions. In absorption refrigeration systems that operate by heat exchange, the heat transfer rate and heat transfer efficiency are It is extremely important. //+Changing the form of the device in which the cryochemical agent is transported This also has an important effect on the heat transfer rate and heat transfer efficiency in the stem.

Traditionally, in absorption refrigeration systems, either the generator or the reservoir is fully contained; In a refrigerant bath, heat is passed through a pair of refrigerant baths, or in a reservoir container. Heat can be removed by applying heat to the bottom or sides of the device. Lowet et al. U.S. Farm Bureau Permit No. 3.495,420 for h,etc,l is the standard for absorption 7 stems. It shows a typical device.

1, MJ's patent states that a reservoir-like condensate is provided in an adjacent spaced position. There is. The refrigerant spontaneously emitted from the generator chamber and was transported to the suspect chamber. Reruko's traditional system! /I: In some cases, the heat added to the generator is significant. Most of the bath liquid in the reservoir is wasted (as opposed to being efficiently supplied). ('i: Cooling of the condenser is also effectively used. In the description of the present invention, the power unit is It is important to clearly distinguish the container where the knitted gold goes in and out. , in an unknown document, is a standard-setting organization related to absorption/stem , A5IiRAE Branch Committee on Absorption (8, 31 (ASHRAE T electrical Convnittee 07+A, bsorption M On the ac1st day, the display of ves'J is adopted. Their display 1j: A, 5HRAE 1979 7th Edition Equipment Handbook (Equip-m, eηt Handbook) This is illustrated in the following quotation from Chapter 14:

[In order to avoid the confusion of terminology in the field of absorption technology, ASHRAE technical committee member Society 8.3 recommends the following standard terminology for absorbent-refrigerant bath liquids: with thin absorbent has already absorbed the refrigerant in the absorber and is a @liquid with a weak affinity for the refrigerant. thick suction Absorbent is a bath liquid that has a strong affinity for the 4 refrigerants because it has already released the refrigerant in the generator. is” Battelle Memorial Institute (In5ti-1u) Battelle Development is a subsidiary of Battelle Develop. Assigned to Ent Corporation, filed on August 31, 1980. No. 177,695, in the form of a heat exchanger in an absorption system. Improvements are disclosed that are aimed at reducing the burden on customers. An extension of the above-mentioned disclosure secrets, or Any of the partial extensions are hereby incorporated in part by reference.

The present invention is an improvement to a heat exchanger in an absorption system. In the present invention, The generator and condenser may be a single-stage or multi-stage unit, referred to herein as a "power unit". It is combined as a knit. The origin of the name “power unit toy” is high temperature. Two types of refrigeration systems, on the high pressure side of the system, where (driving) energy is supplied Element 7! :Relates to a combination. evaporator and absorber, the system Other parts of the system operate at relatively low pressures.

The object of the invention is to combine a generator and a condenser in such a way that one working part forms the entire working part of the other. , so that one part is integrated with the other so that the heat conduction on one side is integrated with the heat conduction on the other side. Combination 4 1) [59-50127'1 (3) Providing the form of the combining device and structure Is Rukoto. Another object of the invention is to simplify the arrangement and structure of r, s, Multi-stage power unit to provide moderate heat transfer efficiency with minimum space and cost It is difficult to change.

The features and objects of this invention can be understood from the following drawings, description and claims. A brief explanation of the drawing that will be clear Figure 1 shows an overview of the present invention implemented in a typical prior art absorption refrigeration system. Schematic diagram, FIG. 2 is a partially sectional side view of the device according to the invention iC, and FIG. 3 is taken from the plane 3-3 of FIG. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIG. 1, a generator 11, a condenser 12, an evaporator 13, an expansion valve 14, an absorber A conventional absorption refrigeration/forced heat system including 1° is shown schematically. The power unit according to the invention is similar to the conventional system. A generator 11 and a condenser 12 capable of generating 10 iCi are used, and m people are installed. . A dotted scarlet surrounds the part of the system 1o that is combined with the power unit 30.

The operation of the conventional absorption 710 heat/R-rejection system is so detailed that little further explanation is necessary. I don't really need it. In a typical 7 stem, water is often combined with a "bath liquid pair". It is decomposed into a liquid of lithium bromide and water. is absorbed into the lithium bromide solution to varying degrees through the heating and cooling of the young fruit. Absorbed heat is added or extracted to serve the purpose.

The solution pair enters the generator via conduit 20 where it is heated. heat supplied accumulates pressure, desorbs the refrigerant water in the form of steam, and the steam passes through the pipe 23 to the condenser 12. sent to. Therefore, the water vapor is condensed into liquid by cooling the outside air, and the liquid is transferred to the pipe 22. The heat is sent through the expansion valve 14, and the heat is absorbed by the evaporator 13. 2 for the refrigeration system In this case, the heat absorbed by the evaporator 13 is from four loads.

The low-pressure steam is sent through pipe 24 to absorber 15, where it is brominated by atmospheric cooling. Lithium solutions can desorb water vapor. Next, the bath liquid pair is recuperated by the pump 16. It is sent to the container 17. The recuperator is a convection exchanger, which connects the generator 11 via piping 18. Lithium bromide, an absorbent sent from the Heat the bath solution pair.

The heating cycle (in which the absorber 15 and (11) are supplied by the condenser 12) The cooling effect of the combustion tube type according to the present invention is a heating load. The absorption power unit includes a vertical "combustion chamber" central columnar pipe member 31. , the member 31 projects through a heat source 33, typically a pulse combustor. It has an end plate 32 at its lower end with an opening in relation to the valve axis. Second columnar pipe member 34 surrounds the central pipe member 31 in relation to the valve axis, 1=-9, the pipe member 34 has a top, outwardly extending, radially located closure plate 35 and a similar The lower end closing plate 36 & the end are connected to the outer surface of the central columnar pipe member 31, A first annular desorption chamber 37 is formed.

The various elements constituting the present invention are generally arranged in a co-linear relationship, and are referred to as "inner" members. is a law closer to the center @ line.

The upper end closing plate 35 in the shape of a bow allows the refrigerant from the recuperator 17 to flow through the conduit 20. and an opening through which the solution 21 of the absorption 41 passes. Pend 38 at the end of conduit 20 The refrigerant and absorbent solution 21 is transferred to the central columnar pipe member 31 by using another device. diffuses to the outer surface of the The closure plate 36 at the lower end is provided with a partition 40 , the partition 4 0 or the bottom of the annular chamber 37 into the inner reservoir 41 and the outer-II 'J Zaha 42 To divide.

a C-extending, radially located closure plate 45 outwardly of another upper end and a similar lower end; (closing play) From 46tζ, the third columnar pipe member 44 is the second columnar pipe member 34 in the eutectic line direction, and is attached to the second annular desorption chamber 47. Form. A closure plate 45 at the top end closes the chamber 47 to the inner reservoir of the chamber 37. It has an opening through which a conduit 48 connecting to the server 41 passes. In some cases, pump 4 3((Thus the differential pressure between the chambers increases and the partially enriched refrigerant in conduit 48 and rise the absorbent solution. Bend 4 at the upper end of conduit 48 in chamber 47 9 or other devices may be used to detect partially darkened t or A bath of medium and absorbent is diffused onto the outer surface 50 of the second vibrator member 34 .

The lower end closing plate 46 of the chamber 47 is also closed by the partition 53 (and the annular ring of the interior 1 The reservoir 51 and the external annular reservoir 52v'C are divided.1.The conduit 18 is inside The reservoir 51 is attached to the recuperator 17. Chatuba 37 outer reservoir 42 and chi The external reservoir 52 of the chamber 47 is in mutual contact with the pressure reducing device 94 and the conduit 22. The conduit 92 then penetrates the expansion 4f14.

The outer surface of the third columnar vibe member 44 (for example, A surface can be provided.

The surface 39 of the central columnar pipe member 31 inside the A surface located at 13 points and protruding outward and upwards: Even the attachment of the extension member is universal. 2, the member is basically '3-. L/C, the slit that forms the protrusion 56 do. Similarly, on the surface 50 of the second columnar/squive member, the chamber! Inside 47 The whole old Qζ is located in the same way, and the extension member protrudes outward and upward. There are 56 protrusions and 9 holes.

In the illustrated preferred embodiment 1/1], the above-mentioned space extension member 5G is the chatuba 37. It is installed near part 47, and it is arranged in a spiral shape near partition 40.53. It is wrapped around the central and second columnar pipe members. In another structure, Fins (may also be carved from the pipe wall itself).

In a typical operation of the present invention, when the flame of the pulse combustor is 1 year old, the flame of the pulse combustor is ] and heats the pipe to a high temperature of 1. Cold from recuperator 17 Medium/absorbent 6 liquid 21 is passed through conduit 20 to chamber 37 and onto external surface 39. When it is widely introduced, the water of @kai21dried is desorbed, separated and becomes steam, and then the second It condenses on the cold surface of the pipe member 34 of No. 2. Surface length member 56. The heating surface is 1 It expands and transforms the water (!: refrigerant into a thin film) into an extremely effective VC, making it easier to evaporate. Ru.

The bath liquid 21 is collected in a reservoir 41 and flows downward along the surface 39 and the protrusion 56. Gradually: The first medium becomes thinner as it flows. Concentration, 7'L1 This solution is conduit 48 , is pumped up through the inlet 49 onto the surface 50, and from there downward -\, katsuo] The protrusion 56 flows upwardly. After the desorption process is carried out, water vapor is released into the reservoir 51. The water and bromide solution are now thickened and the water and bromide are collected. Chiumu 5r) @ Kei (・Dimension pipe 18, recuperation S17, pipe 19 and explanation waste container] Go to 5 It takes 2 ri.

While the above-mentioned ((, Chatuba 37 and ・17) are being attached and detached, the second pipe The inner wall of pipe 34 and the inner wall of third pipe 44 are connected to the wall or protrusion on the opposite side where the persuasion is being performed. Since the walls are also cold, condensation occurs simultaneously on their inner walls. The cooling source is The outer wall of the third pipe 44 is provided with an extension fin 55. There is an atmosphere (In this case, if the coolant (e.g. water) in the fin (not shown) is 55 and in close contact with the wall, the heat is removed from the center of the warping unit 30. As the water is extracted outwards and condensed, the water builds up on the outer walls of the chatuba. Flowing down from above, 1ull of lither zX42 and 52 were collected, and from there It is conveyed to the expansion valve 14 via conduit 22.92.

In order to share the freezing driving force of % tons, the absorption heat exchanger/stem is installed at the bottom of the groove and continues to operate. Features of a typical illustrated power unit are as follows.

Nakagami/Ba'ibu 1905 mm (菟inch) 440 (outer diameter 17.15 mm (0 , 675 inch) - inner diameter 12.52 mm (0,493 inch)) second pipe - 31,50 mm (11 A inch) ≠ 40 (4216 mm (166 Inona)) - Internally made 35.05 mm (1,:38 inch)) Third pipe - 63,5 mm (38 inches) 1' inch) Chufu '14 gauge (outer diameter 635 mm (2.5 inch inner diameter) Diameter 59.28 mm (2,334 millimeters) Length of pipe between closure members - 1.7 meters (5.5 feet) This power unit 30 is supplied with an odor [the concentration of lithium is 58% and 4% lithium bromide]. Mu7/A dilute solution of water is at a temperature of about 155.6°C (below 312)./Quiz 3 0 to the outer surface 39 of 1 Become a person. This thin @ liquid flows down on the surface extension part spot 56 and is approximately 166.7°C (33°C). At a temperature of 2), the concentration of lithium bromide is partially concentrated to 60%%1, The inner wall of the second tube 34 exits from the chamber 37 via the Water condensate collects at the top of the pipe 22 at a temperature of about 107.8°C Then it separates from the bottom part 6 and comes out from the chaff]・37 via the ricer/12. Partial Lithium bromide solution (concentration lithium bromide 60”/　, % 0- Ft) at a temperature of approximately 90°C (below 194), the pipe 2's nog 347) is guided to the outer wall 50. Conveyed via tube 48. After flowing down the surface polishing member 56, a thick bath liquid (approx. At a temperature of 4°C 202'F), and at a temperature of 62.1% of lithium bromide, the bottom It passes through the reservoir ＼51 through the conduit 18 provided in the At this time, at night, the child was wearing and undressing for just a little while. It is a bath liquid. [Shadow object (on ζ7]) 43.3℃ (110℃) 3rd pie at 0 temperature Pass the mulberry plate 1'LX bottom part 01 nose plate 52 onto the inner wall of the pipe 44 and connect it via the conduit 92. Then Chimanono ＼47ka) and others left. The cooling water or the third The outside of the nozzle 44 is circulated at a temperature of about 29.4° C. (below 85° C.).

The duke leaves chamber 47, and the night is 2 tatami degrees. Two-stage power shown in Figure 3 In the unit, the concentration of hylithium increased from 58% to 62.1% due to odor. Ru. This is exceptionally true for an absorber of this size and capacity. It is considered to be a shellfish.

11 The coaxial line-related sealed structure of the power unit according to the present invention saves space and energy. It turns out to be particularly efficient and effective in terms of savings. Heat is generated in confined spaces. The only escape is towards the outside of the structure (2-key for all combustion systems). The heat can be advantageously used (other than exhaust through the top, which is a loss of energy). Conversely, cold The maximum area for cooling is available around the outer pipe 44 and fins 55.

The device according to the invention can be applied to various main pipes, chambers and the center of the walls of the chamber @ The line is shown in the floppy position.

The equipment system operates most effectively in this generally vertical position. It is considered. However, when the instep line is slanted to the vertical direction, Therefore, the operation of the system should be subject to a gradual decline in its efficiency.

At a certain inclined position 2, the desorption and condensation on the lower side and this desorption and condensation on the upper side occur. If the values are far apart, their effects will be lowered by one generation, and the operating efficiency of the device will be reduced. let Determining the slope as described above is a matter of experience for experts in the field. As a matter of routine experimentation, the present invention is capable of 7 stems angled relative to the 7 stems are also intended to be included and applied.

The configuration using columnar pipes and circular chatuba has a simple structure, for example, each connection Easily fabricated from commonly available or fabricated materials such as continuous steel pipe. Ru.・Wound in a spiral shape・One side・Extension member, 5.6 is an annular channel X37. This is particularly effective in utilizing 47 spaces.

Due to the unique form of co-field line relationship with the extension member, the evaporation surface of the extension member and the chi The distance traveled by the vapor to and from the condensing surface of the outer wall of the chamber is uniform and very short. For this reason, Improves the thermal efficiency of this type of equipment.

Due to the configuration described above, an exceptionally high heat input is typical in the form of a pulse combustor 33. can be provided. By this means, surprisingly high temperatures can be achieved at the center of the power unit. 7) Surroundings of the unit can be effectively handled using

Also, due to the above-mentioned morphology and its good heat transfer efficiency, hot spot problems are eliminated. or minimized. 2. In this type of equipment: try high heat transfer rate 1. , boiling rarely occurs during the desorption process. Lithium bromide 2 If boiling occurs using a typical bath rL, the heat transfer surface may become wrinkled, stirring may occur, or temperature differences may occur. occurs.・These “hot spots” reduce overall efficiency and reduce the Creates a highly corrosive atmosphere that adversely affects the materials of which it is made. 1, ho Spots can crystallize molten fluid, which can clog passageways or stop equipment from working. let

In the device according to the invention, the @liquid pair flows down the helical wall of the inner surface of the chamber. Hot spots are eliminated as the liquid guiding pair sword S gradually approaches the point with the highest temperature. be done.

The device according to the present invention is a device for each of the generator and condenser in a multi-stage absorption refrigeration system. One "power unit" in which one thermal wall acts as a highly efficient component of the other. It turns out that it can be combined with

The exemplary preferred embodiment of the invention illustrated and described herein is a two-stage unit. It is. Utilizing the concept of the present invention, internal use 1 [pipe 31 and outer pipe 44] In between, another stage can be added in coaxial relationship. Each additional step is Increase the efficiency of the system by increasing the separation of liquid and medium on the high pressure side of the system. Provide opportunities to improve.

The preferred embodiment of the invention is unknown! As explained in the wB book, the basics of the present invention are Without departing from the basic principles of It is understood that changes, modifications or possible changes are possible. However, this kind of change or correction is Major inventions other than those necessarily modified by the scope of the claims or their reasonable equivalents be considered to be within the spirit and scope of

Claims (1)

[Claims] [1] Gradually increase the size to provide space between the inner and outer walls of adjacent pipes. a plurality of generally coaxially located pipes having diameters and dimensions that In power units for replacement systems, α, with a hollow, vertical central pipe; b. extending outward from said central pipe and being connected to an outer pipe; Surrounding the pipe are adjacent generally annular chambers forming upper and lower chambers. with a closing member. and a means for providing heat to the C9 central pipe. d. means for providing a C or attenuated member in wide contact with the outer surface of the pipe of maximum diameter; e. Draining and absorbing the medium-absorbent liquid onto the inner wall of the generally annular chamber 41] The refrigerant is fed from @Toru, and the t and medium are placed on the outer wall of the chamber. and the means to do so. f. a generally annular chamber (with means for separately collecting the refrigerant and bath water; g, collected separately (Answer: 10,000 chambers from the next adjacent progressively larger diameter and means for conveying the bath liquid to the chamber and draining the bath liquid from the largest diameter chamber, separately. means for conveying collected refrigerant from the chamber; A power unit for 7 stems with heat absorption and exchange, including 5 (2) In the power unit according to claim 1, in c, the closing member is Longitudinal direction of the unit! ! Franz located approximately radially to ilIm A power unit. (3) The power unit according to claim 1: In 2, the pipe has a cross section A power unit with a circular shape. (4) The power unit according to claim 1. a generally radial radius along an outer surface thereof and spaced between said end closure members; ■ A power unit including an extension member located in the direction and protruding outward and upward. (5) In the power unit according to claim 4, the first extension member ( is basically a power unit that has a slit that forms a protrusion. (6) In the power unit according to claim 5, the surface extension part is an end a patch located and attached to the outer surface of the pipe in a spiral manner between the closing members; War unit (7) In the power unit according to claim 4, 1. A power unit that improves the cooling effect by providing an extension member. (8) Fourth aspect of claim: Supplying cooling principal separately to the power unit described in C. A power unit whose cooling device is a water jacket. [9] Absorption heat exchanger has an overall symmetrical structure around the central axis of the absorption refrigeration system. Put one on the power unit for the conversion system, 16 a. A fuel outlet comprising an outer wall and an inner wall and positioned to direct the flow of combustion products thereinto. A combustion chamber member configured to receive a combustor for combustion, the member comprising: At intervals along the wall surface in the direction of the center and axis, generally located radially and outwardly. one extension member has a surface projecting in the direction, an end projecting outwardly from said outer surface, and a radial direction a centrally disposed combustion chamber member including a closure member formed in opposite directions; b, surrounding the combustion chamber member J, spaced apart from the outer wall S of the chamber member, and a first desorption chamber member attached to the closure section; spaced between the ends) and @line direction ((extending, generally radially positioned) and has a surface extension member that protrudes outward (C), with the end thereof protruding outward from the outer wall surface. - a first removable chatuba member formed in a radial direction and including a closure member; C0 a first rutting chamber member formed between the combustion chamber member and the first rutting chamber part; a removable chatuba having an inlet opening at one end and a partition at the opposite end; The cut is completely opposite to the outer wall (parallel to / and perpendicular to the closing member) The end of the first detachable chatuba is divided into an inner reservoir and an outer reservoir. a first desorption chamber comprising an outlet opening from the reservoir; d, the outer wall 17 surrounding the first desorption chamber member; 79 (2) second detachable chips spaced apart from each other and attached to the closing part paulownia; With chamber parts. e. formed between the first desorption chamber member and the second desorption chamber member; a second desorption chamber partitioned at one end (an end opposite to the C inlet opening); , the partition is entirely parallel to the outer wall and perpendicular to the closing member. The end of the detachable chatuba of the man 2 is divided into an inner reservoir and an outer reservoir at the direct position (~) A second desorption chamber with 17 ζ openings from each reservoir. Power unit for absorption heat exchange system, including. (10, Q box 9th peak of claim (C number power unit A fluid is provided between the chamber 1i111 chatuba and the inlet to the second de-sliding channel f/c. A power unit equipped with a communication device. (In the case of the power unit described in Clause 9 of the claim, Or a power unit having a sulin I- which basically forms a protrusion. (D In the power unit according to claim 11, the surface of one extension member is an end The power unit is rotated on the outer surface in a five-ring shape between the closing members, and is attached to the power unit. t. ■