WO2010081249A1 - Système d'amélioration universel autonome et compact, utile pour augmenter la capacité et l'efficacité de systèmes de réfrigération ou d'air conditionné - Google Patents

Système d'amélioration universel autonome et compact, utile pour augmenter la capacité et l'efficacité de systèmes de réfrigération ou d'air conditionné Download PDF

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Publication number
WO2010081249A1
WO2010081249A1 PCT/CL2010/000002 CL2010000002W WO2010081249A1 WO 2010081249 A1 WO2010081249 A1 WO 2010081249A1 CL 2010000002 W CL2010000002 W CL 2010000002W WO 2010081249 A1 WO2010081249 A1 WO 2010081249A1
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WO
WIPO (PCT)
Prior art keywords
compact
autonomous
universal application
capacity
pipe
Prior art date
Application number
PCT/CL2010/000002
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English (en)
Spanish (es)
Inventor
Enrique Luis Aparicio Bernat
Original Assignee
Enrique Luis Aparicio Bernat
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enrique Luis Aparicio Bernat filed Critical Enrique Luis Aparicio Bernat
Publication of WO2010081249A1 publication Critical patent/WO2010081249A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers

Definitions

  • the present invention relates to an autonomous, compact, modular enhancement system; to increase the capacity and efficiency of cooling or air conditioning systems.
  • the system is universally applicable since it can be used in any refrigeration or air conditioning system; increasing the cooling capacity, in said plants and / or equipment.
  • the enhancement system has been designed to be applied in any existing refrigeration system or air conditioning system, which are widely used in the food, agricultural, fishing, ice production, maintenance and distribution of refrigerated or frozen foods, freezing of food products, cooling of process rooms, cold rooms, cooling of various fluids for the food and chemical industry, air conditioning systems for comfort or industrial use.
  • the need to increase the capacity and efficiency of its refrigeration systems beyond the original design, whether due to an increase in the demand for cold in the market, ecological or technological requirements, to maintain economic competitiveness with energy systems is common in the indicated industries. Low power consumption and other various reasons. Previous Technique
  • the potentiation system has a design and construction. original that allows a universal and immediate application, minimally intervening pre-existing equipment by means of a compact, autonomous, fast installation that increases capacity and efficiency Investment in equipment is smaller.
  • the universal application potentiation system uses very reliable small low power equipment, but in high efficiency thermodynamic conditions. This makes the cost of repowering a fraction of what is the traditional method that normally consists of equipment similar to the existing ones, coupled in parallel.
  • the universal application enhancement system will be compatible regardless of the refrigerant used by the pre-existing system and which will be enhanced, as the cooling fluids are maintained always separated and never come into intimate contact.
  • the traditional system is to use equipment with the same refrigerant, which may have become obsolete or currently have restrictions on its use.
  • the universal application enhancement system does not increase the mass of refrigerant recirculated in the pre-existing plant, so it is not necessary to modify the original pipe lines. Nor do the valves or elements change. No major changes are required in ponds, receivers and / or traps, filters.
  • the universal application enhancement system and the associated equipment referred to in the present invention are extraordinarily compact, so it has great versatility for installation. It can be installed in the existing machine room or outside it, wherever the high pressure coolant line passes, as it is attached to this line. Let's not forget that it is independent of the existing cooling system. Traditionally, when installing equipment in parallel, the system should be operated only at specific points and locations, always with great problems of space and location for new and bulky equipment.
  • the universal application booster system is compact, autonomous and quick to install, it is installed in just a few hours, and most of this time you do not work with the main refrigeration equipment and it normally works without stopping. This is because the universal application potentiation system includes a construction of simple installation valves that are part of the equipment object of this patent and that allows to continue operating the preexisting cold systems. Once all the elements are installed, the system is activated by turning three valves and energizing the machine. Traditionally, the plants had to stop for weeks or months to make special, custom-made constructions, connections and assemblies.
  • the universal application enhancement system can be installed in series with other equals, so as to gradually cool the coolant of the main system. This will generate even greater efficiency and allows maintaining the universality of the system and its small size. It is in this way modular and autonomous, say very large pre-existing refrigeration plants are simply enhanced by mounting several universal application systems in series, which will subcool the refrigerant in a progressive manner.
  • the universal application enhancement system is simply taken out of service by turning three ball valves, without causing any degradation to the pre-existing system. If it is required to reactivate the universal application booster system again it is as simple as turning three valves. This is due to the special valve construction that is included as part of the system object of this patent. Traditionally doing this operation to return to original conditions was very complex, difficult or almost impossible. This is very important in real systems, since any anomaly in the new system has no support and leaves the entire plant stopped since the original conditions are impossible to recover.
  • the present explanatory report refers to a universal, external, compact, complete, autonomous and quickly coupled application potentiation system, using a special valve construction that is part of the present invention.
  • the universal application potentiation system comprises a complete cycle of steam compression cooling and increases the capacity and efficiency of any refrigeration or air conditioning plant.
  • the universal application enhancement system object of this patent is explained based on drawing number 1, and includes those designated with numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 , 13, 14, 15 and 16.
  • the numbers indicated 17, 18, 19, 20, 21, 22, 23, 24 are part of the pre-existing cooling system.
  • the construction of valves 1, 4 and 16 correspond to the design that allows quick coupling and is part of the universal application system. This set of valves is delivered armed but separated from the elements indicated 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 which are fully assembled on a base, connected its pipes, electrical and control elements, with its cooling fluid and oil, as a compact part.
  • the coolant of the pre-existing main cooling system coming from the condenser 21, passes to the main receiver 22, where it is stored to be sent by the respective pipes to the cold points.
  • the liquid coming from the main tank 22 comes out of the high-pressure liquid line of the pre-existing system, indicated in Figure 1 and marked with the number 23.
  • the pre-existing system or which we call the main one has some accessories in this liquid line, such as for example the valve indicated number 24.
  • This valve number 24 together with the indicated number 18 is used for service and to isolate the filter of the main system, indicated number 17 and its replacement without significant loss of refrigerant.
  • the liquid from the main receiving pond is in high temperature, usually close to + 35 0 C.
  • the high pressure coolant passes through the valve 24, entering the universal application potentiation system object of this patent through the ball valve number 1, whose diameter is 22 mm, which, by means of the indicated pipe 2, also of 22 mm diameter, enters from the top of one side of the welded plate heat exchanger marked with number 3.
  • the coolant of the main system is cooled to a temperature between 0 ° C and 10 0 C in the heat exchanger indicated with the number 3, returning to the pre-existing system circuit by line 15 of the bottom of the plate exchanger indicated with 3, this connection is made with a pipe 22 mm in diameter and passing through the ball valve indicated with the number 16 whose measure is also 22 mm.
  • the set of valves 1, 4 and 16 are all ball, diameter 22 r ⁇ m. and are separated from each other a distance not exceeding 150 mm. This allows an original compact set of bypass valves, quick installation and does not generate pressure drop, allowing a universal diameter of 22 ni m., which can be applied in wide ranges of capacities if the indicated length is maintained
  • the liquid refrigerant of the main system is cooled in the welded stainless plate heat exchanger indicated with the number 3 by the exchange of counter-current heat against the refrigerant of the universal application potentiation system object of this patent, which evaporates in the other circuit, without contact between the fluids
  • This refrigerant expands in the expansion valve number 14, coming from the liquid line number 11 whose diameter is 12 mm
  • the refrigerant of the universal application booster system evaporates at a temperature between -5 ° C and + 5 ° C in the plate heat exchanger indicated with the number 3 in order that the pre-existing main system is efficiently benefited by the conditions of High temperature work, and reheats between 7 0 C and 10 0 C to allow the thermostatic expansion valve with external equalizer indicated with the number 14
  • the refrigerant in the form of superheated gas to an approximate temperature of + 8 0 C passes through the suction line indicated number 4 to the combined reservoir pool-suction accumulator and heat exchanger indicated with the number 10
  • Suction line number 4 must have a diameter of 22 mm and a minimum length of 25 cm, and a maximum length of 60 cms This allows the correct return of the oil in different operating conditions or thermal load
  • the designated reservo-suction accumulator and heat exchanger indicated with the number 10 must have a capacity between 5 and 7 liters as a liquid trap, and a capacity between 5 and 8 liters as a reservoir of high pressure refrigerant All this so that a liquid blow to the compressor indicated with the number 6 cannot be generated, and so that the gas velocity allows the recovery of the oil
  • the liquid blow is one of the recurring problems if the indicated specifications are not respected, since the thermal inertia of The evaporation plate is very small, and it is very easy to return liquid due to a variation in the main thermal load. We avoid the danger and there is no need for a solenoid and the so-called refrigerant collection stop system
  • the gas coming from line 4 is additionally reheated 10 0 C as the reservoir has a triple function, also as a heat exchanger.
  • the gas leaves through the indicated line 5 of 22 mm. in diameter at an approximate temperature of 17 0 C and enters the compressor indicated with the number 6
  • This section of the suction line number 5 must have a maximum length of 40 cm to avoid excess pressure loss when the equipment works with high mass flow, and the construction must be such that the output of the indicated number 10 is at a higher height than the entrance to the compressor 6, to cancel the reflux of fluids by gravity
  • the compressor indicated with the number 6 discharges superheated gas at approximately 85
  • the condenser has a copper pipe and aluminum fins circuit and a lower outlet, with an electro-ventilator with volumetric capacity to move air between 5,000 and 8,000 m3 / hr so that the condensation is complete and a small subcooling can be achieved.
  • the condenser indicated with number 8 delivers condensing coolant at 38 0 C, with a small undercooling of 4 0 C 5 since condensation occurs between 38 0 C and 45 0 C.
  • the condensed liquid at + 38 0 C exits through a pipe and connection at the bottom of 16 mm. of diameter indicated with the number 9, whose length should not exceed 50 cm. to avoid the pressure drop of the small diameter.
  • the condensed refrigerant enters the triple action reservoir indicated number 10, whose refrigerant storage capacity must be between 5 and 8 liters Since reservoir number 9 is also a heat exchanger, the refrigerant leaves the subcooled between 1O 0 C and 15 0 C, that is, at an approximate temperature of 22 0 C, along the indicated line 11 whose diameter is 12 mm, which is possible due to the subcooling achieved, avoiding bubbling and bad injection, which is a recurring problem in compact systems that produces serious problems.
  • the length between the outlet of the receiver and the expansion valve must not exceed
  • Bl refrigerant evaporates in the plate exchanger number 3 at a temperature between - 5 0 C and +5 0 C, so that there is a real benefit of increasing efficiency in the pre-existing system.
  • valve system indicated with the numbers 1, 4 and 16 allows the rapid and safe installation of the system. Indeed, by interrupting the main system liquid line in the indicated position A, and installing the indicated valve kit and joining this in the position indicated B, just open the valve 4, while keeping the numbers 1 and 16 closed, and the main cooling system returns to work normally immediately This is all the intervention that is done on the main system or preexisting.
  • the rest of the equipment is a very portable single piece, assembled entirely on a base that contains all the components and connections and loaded with its fluids to operate .
  • the specification of elements, indicated pipe lengths, indicated diameters and volumes allows the equipment to be mounted on a single compact base.
  • the compact, autonomous and fast installation system has a complete refrigeration system, comprising a compression cycle of refrigerant vapor, which is completely independent of the refrigerant of the main system (or pre-existing system), since its fluids never come into contact only they exchange heat by means of plate exchanger 3.
  • the universal application enhancement system as stated can be installed anywhere in the liquid line of the pre-existing main system.
  • the universal application enhancement system has greater efficiency than the original pre-existing system, it can also be used as an effective capacity control system being able to stop some major equipment from the main system if the demand is low, and maintain the system of universal application empowerment operating, thereby achieving greater efficiency.
  • Figure 2 shows the traditional (pre-existing) cooling system and the intervention points A and B already intervened. We see at its side the original construction of valves indicated 1, 4 and 16. The first action of the assembly has been to intervene the liquid line in A and B by cutting a piece of the pipe, to install the combination of valves that is part of the system from universal application object of this patent as seen now in figure 3. Once this is done, the valve 4 is opened and the valve 1 and 16 closed, the pre-existing system being as shown in figure 3, fully operational. In this condition the pre-existing system can operate normally, and the main equipment will no longer be required to intervene again.
  • FIG 4 block C corresponds to the complete compact unit, a single piece containing all other elements, namely indicated in figure number 1 with the numbers: 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
  • valves 1 and 16 are opened and valve 4 is closed.
  • the universal application booster system It remains with this fully installed and fully functioning.
  • the compressors have a fixed volumetric displacement, that is, they move a given amount of volume. In the case of reciprocating equipment, it is the number of times the piston travels through the cylinder by the volume of the cylinder, called volumetric displacement.
  • the universal application booster system object of this patent uses a high temperature cycle to subcool the pre-existing or main system high pressure coolant, which must work at a lower temperature or pressure than the universal booster system, so that really benefit from this invention. In this way we managed to transfer the high efficiency of a higher temperature system to a lower one.
  • a high temperature system has an efficiency in relation to energy consumption that can reach 4: 1, instead a low system of 1: 1. The difference is remarkable.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

La présente invention concerne un système d'amélioration universel autonome et compact utile pour augmenter la capacité et l'efficacité de n'importe quel système de réfrigération ou d'air conditionné par sous-refroidissement du liquide à haute pression du système. Le système selon l'invention comprend un circuit complet de réfrigération par compression du gaz avec un motocompresseur compact de type hermétique; un condensateur à ailettes refroidi par air; une cuve multifonction de réception-accumulation d'aspiration et d'échange de chaleur; un dispositif d'expansion; un évaporateur compact à plaques soudées; un panneau électrique complet fonctionnel; des connexions électriques et mécaniques situées entre les éléments; une charge complète de fluide réfrigérant et de l'huile pour un fonctionnement immédiat. Le système comprend un dispositif spécial formé de trois vannes qui assure un montage rapide, qui permet d'activer ou de désactiver le système d'application universel uniquement par leur actionnement. Le système présente une propriété antidétonante qui assure le retour de l'huile. Le système d'application universelle peut être monté en salle des machines ou dans d'autres lieux et ne nécessite qu'une alimentation électrique et une ventilation. La conception est telle que le système préexistant n'intervient qu'en un seul point avec un impact minimum. Le système d'application universelle peut être monté en série avec d'autres systèmes similaires pour une meilleure efficacité ou en parallèle pour de grandes capacités.
PCT/CL2010/000002 2009-01-13 2010-01-12 Système d'amélioration universel autonome et compact, utile pour augmenter la capacité et l'efficacité de systèmes de réfrigération ou d'air conditionné WO2010081249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2009000049A CL2009000049A1 (es) 2009-01-13 2009-01-13 Sistema de potenciamiento autonomo, compacto, modular, para aumento de capacidad y eficiencia, como unidad de subenfriamiento para un sistema de refrigeracion principal, con un conjunto de elementos que incorpora un intercambiado de placas para enfriar el refrigerante del sistema principal; y metodo de montaje rapido.
CL0049-2009 2009-01-13

Publications (1)

Publication Number Publication Date
WO2010081249A1 true WO2010081249A1 (fr) 2010-07-22

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PCT/CL2010/000002 WO2010081249A1 (fr) 2009-01-13 2010-01-12 Système d'amélioration universel autonome et compact, utile pour augmenter la capacité et l'efficacité de systèmes de réfrigération ou d'air conditionné

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CL (1) CL2009000049A1 (fr)
WO (1) WO2010081249A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040031278A1 (en) * 2002-08-13 2004-02-19 Delaware Capital Formation, Inc. Cooling device with subcooling system
WO2006099378A1 (fr) * 2005-03-14 2006-09-21 York International Corporation Systeme cvc equipe d'un sous-refroidisseur mecanique
WO2008035386A2 (fr) * 2006-09-20 2008-03-27 Giuseppe Giovanni Renna Installation frigorifique a sous-refroidissement regule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040031278A1 (en) * 2002-08-13 2004-02-19 Delaware Capital Formation, Inc. Cooling device with subcooling system
WO2006099378A1 (fr) * 2005-03-14 2006-09-21 York International Corporation Systeme cvc equipe d'un sous-refroidisseur mecanique
WO2008035386A2 (fr) * 2006-09-20 2008-03-27 Giuseppe Giovanni Renna Installation frigorifique a sous-refroidissement regule

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Publication number Publication date
CL2009000049A1 (es) 2009-05-29

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