WO2008098436A1 - Appareil de distillation de fines et appareil de réfrigération du type à absorption d'ammoniac utilisant la chaleur perdue des gaz d'échappement - Google Patents

Appareil de distillation de fines et appareil de réfrigération du type à absorption d'ammoniac utilisant la chaleur perdue des gaz d'échappement Download PDF

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Publication number
WO2008098436A1
WO2008098436A1 PCT/CN2007/002132 CN2007002132W WO2008098436A1 WO 2008098436 A1 WO2008098436 A1 WO 2008098436A1 CN 2007002132 W CN2007002132 W CN 2007002132W WO 2008098436 A1 WO2008098436 A1 WO 2008098436A1
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WO
WIPO (PCT)
Prior art keywords
tube
rectifier
primary
shell
inlet
Prior art date
Application number
PCT/CN2007/002132
Other languages
English (en)
Chinese (zh)
Inventor
Qidong Pang
Wenhui Zhang
Original Assignee
Qidong Pang
Wenhui Zhang
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 Qidong Pang, Wenhui Zhang filed Critical Qidong Pang
Publication of WO2008098436A1 publication Critical patent/WO2008098436A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/04—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being ammonia evaporated from aqueous solution
    • 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
    • F25B2333/00—Details of boilers; Analysers; Rectifiers
    • F25B2333/006—Details of boilers; Analysers; Rectifiers the generator or boiler having a rectifier

Definitions

  • the present invention relates to a refrigerating apparatus, and more particularly to an ammonia water resorption type refrigerating apparatus that utilizes exhaust gas residual heat to achieve sufficient rectification.
  • the Chinese Patent Publication discloses a patent application file with the publication number CN2842312.
  • the refrigeration device described in the patent application file can realize the refrigeration requirement by utilizing the exhaust heat of the exhaust gas of the engine, has a high refrigeration coefficient, and has a small volume and weight, and can be applied to, for example, Cars, fishing boats and other means of transport.
  • the ammonia water absorption refrigeration device using waste heat of exhaust gas described in the above patent application includes a waste heat generator, a rectifier, a regenerator, a solution throttle valve, a liquid ammonia throttle valve, an evaporator, a solution pump, a condenser,
  • the absorber, the generation-absorption heat exchanger, the stripper, and the regenerator are combined to and circulate to form a circulation loop of ammonia aqueous solution and a circulation loop of ammonia.
  • the cooled high-concentration ammonia aqueous solution pumped from the solution is sent to the solution passage of the rectifier to exchange heat with the ammonia-mixed steam from the waste heat generator.
  • the moisture of the ammonia mixed steam is condensed and precipitated on the outer surface of the rectifier solution passage, and the high-purity ammonia gas after the distillation is condensed into liquid ammonia through the condenser, and the liquid ammonia enters the evaporator for evaporation and refrigeration, thereby realizing the device. Refrigeration process.
  • the performance of the rectifier is a key link to improve overall cooling efficiency.
  • the rectifier which is usually used is a coil type
  • a low-temperature high-concentration solution is taken away from the tube, and the water condensed after rectification is deposited at the bottom of the shell side, and the residual heat is returned through the stripper through the bottom line.
  • Device In the shaking environment of the ship, the condensed water does not flow down sufficiently into the pipeline at the bottom of the shell, thus affecting the circulation process of the ammonia water.
  • the operation of the refrigeration device and its circulation system is intermittent, that is, the circulation of the ammonia aqueous solution is also intermittent, so that the circulation solution itself is used as the fine boring device. Cooling medium, there will be incomplete rectification. Therefore, it is necessary to design a better performance rectifier for the characteristics of the refrigeration unit applied to the fishing vessel. Summary of the invention
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an environment that can adapt to shaking. And able to achieve a fully accurate rig.
  • Another object of the present invention is to provide an ammonia water absorption type refrigerating apparatus using waste heat of exhaust gas which can adapt to a shaking environment and can achieve sufficient rectification and improve overall refrigeration efficiency.
  • a rectifier is a two-stage rectifier comprising a primary rectifier and a secondary rectifier, the primary rectifier and the secondary rectifier being connected in series and both of the shells Structure, the rectified gas is taken away, the cooling medium is taken away, the tube outlet of the primary rectifier is connected to the tube inlet of the secondary rectifier; the shell of the secondary rectifier is provided with seawater Entrance and exit.
  • the inner wall of the tube is provided with three-dimensional fins, and the space without the fins in the center of the tube is filled with a blockage for blocking airflow, in the shell thereof
  • a baffle is also installed in the process.
  • the primary rectifier and the secondary rectifier have a vertical installation structure of the tube clusters of the tube.
  • An ammonia water absorption type refrigerating device utilizing waste heat of exhaust gas which is formed by a combination of a rectifier, a regenerator, a solution pump, a condenser, an absorber, a generating-absorption heat exchanger, a stripping device, and the like,
  • the distillator is a two-stage rectifier, the primary rectifier and the secondary rectifier are connected in series and are both shell-and-tube structure, the rectified gas is taken away, the cooling medium is taken away, and the primary rectification is carried out.
  • the tube outlet of the tube is in direct communication with the tube inlet of the secondary rectifier; the tube inlet of the primary rectifier is connected to the top of the stripper and the regenerator assembly, and the tube outlet of the secondary rectifier is The input end of the condenser is connected; the shell inlet of the primary rectifier is connected to the output of the absorber through a solution pump, and the shell exit of the primary refiner is connected to the shell input of the generating-absorption heat exchanger, secondary
  • the shell side of the rectifier is provided with inlets and outlets for seawater.
  • the present invention has the following remarkable effects:
  • the two-stage rectification of the rectifier adopts a shell-and-tube structure, and the rectified gas is taken away from the tube, and the water condensed after rectification flows completely down the tube wall to the stripper under the action of gravity. Therefore, it will not be affected by the shaking environment on board.
  • FIG. 1 is a schematic view showing the configuration of an ammonia water absorption type refrigerating apparatus using waste heat of exhaust gas according to an embodiment of the present invention. detailed description
  • the ammonia water absorption type refrigerating apparatus using waste heat of exhaust gas of the present invention includes a waste heat generator 1, a stripper 2, a regenerator 3, a primary rectifier 4, a secondary rectifier 5, and occurs - Absorption heat exchanger 6, absorber 7, solution pump 8, condenser 9, regenerator 10, solution throttle valve 11, primary throttle valve 12, secondary throttle valve 13, evaporator 14, cold delivery terminal 15 (External to the circulation system), which are combined to form a circulation loop of ammonia aqueous solution and a circulation loop of ammonia.
  • the refrigeration device includes the following circuits:
  • ammonia aqueous circulation circuit comprising: waste heat generator 1 shell side, regenerator 3, solution throttle valve 11, generating-absorption heat exchanger 6 tube process, absorber 7, solution pump 8, rectifier,
  • the generating-absorption heat exchanger 6 shell side, the stripper 2 - regenerator 3 combination body, the residual heat generator 1 shell circuit are connected in sequence
  • the ammonia circulation loop which includes the shell side of the waste heat generator 1 Stripper 2-regenerator 3 assembly, rectifier, condenser 9, primary throttle 12, regenerator 10 liquid ammonia input, regenerator 10 liquid ammonia output, secondary throttle 13 , evaporator 14, chiller 10 ammonia input, chiller 10 ammonia output, generating-absorption heat exchanger 6 shell, generating-absorption heat exchanger 6 tube, absorber 7, solution pump 8 , a rectifier, a heat-generating heat exchanger 6 shell side, a stripper 2 - a regenerator 3 combination body, and a residual heat generator 1 shell process connected in sequence;
  • the rectifier of the present invention comprises a primary rectifier 4 and a secondary concentrator 5, the primary rectifier 4 and the secondary rectifier 5 are connected in series and are both shell-and-tube structures, the primary rectifier 4 The tube outlet is in direct communication with the tube inlet of the secondary rectifier 5.
  • the tube inlet of the primary rectifier 4 is connected to the top of the stripper 2, the combination of the regenerator 3, and the tube outlet of the secondary rectifier 5 is connected to the input of the condenser 9.
  • the shell inlet of the primary rectifier 4 is connected to the output of the absorber 7 via a solution pump 8, and the shell-side outlet of the primary rectifier 4 is connected to the shell-side input of the generating-absorption heat exchanger 6, secondary rectification
  • the shell side of the vessel 5 is provided with an inlet 5-1 and an outlet 5-2 for seawater, and a water pipe can be connected to the seawater as a cooling medium for the secondary rectifier 5.
  • three-dimensional ribs are processed on the inner wall of the tube, and the space without the ribs in the center of the tube is filled with a solid iron rod to block the airflow at the center of the tube, so that The rectified gas is close to the pipe wall and passes through the gap of the rib; and in the shell side, a baffle is installed to make the cooling medium flow from top to bottom under the action of the baffle, thereby rectifying
  • the device works well for rectification.
  • the cluster of the rectifier is a vertical device, the water condensed after the distillation is gravity-treated along the wall of the pipe. It flows back to the stripper 2 and returns to the waste heat generator 1 for circulation.
  • the present invention is particularly suitable for use in an ammonia water absorption refrigerating apparatus utilizing waste heat of a tail gas on a fishing boat, and is also suitable for use in a refrigerating apparatus utilizing residual heat of engine exhaust gas in a ship shaking environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

L'invention concerne un appareil de distillation de fines (4, 5) et un appareil de réfrigération du type à absorption d'ammoniac utilisant la chaleur perdue des gaz d'échappement, qui, équipé de l'appareil de distillation de fines (4, 5) peut être conçu pour un environnement de support vibrant et permettre d'obtenir une rectification suffisante. L'appareil de distillation de fines (4, 5) présente une structure à coque et tube et est composé d'un appareil de distillation de fines principal (4) et d'un appareil de distillation de fines secondaire (5), qui sont reliés en série. La sortie de tube de l'appareil de distillation de fines principal (4) est directement relié à l'entrée de tube de l'appareil de distillation de fines secondaire (5), et l'entrée de tube de l'appareil de distillation de fines principal (4) est reliée à la partie supérieure d'un corps combinant un dispositif d'évacuation (2) et un régénérateur (3). La sortie de tube de l'appareil de distillation de fines secondaire (5) est reliée à l'entrée d'un condenseur (9), et la sortie de tube de l'appareil de distillation de fines principal (4) est reliée à l'entrée d'un absorbeur (7) par l'intermédiaire d'une pompe à solution (8). La sortie de coque de l'appareil de distillation de fines principal (4) est reliée à l'entrée de coque d'un échangeur thermique à génération-absorption (6), et une entrée d'eau de mer (5-1) et une sortie d'eau de mer (5-2) sont placées côté coque de l'appareil de distillation de fines secondaire (5).
PCT/CN2007/002132 2007-02-12 2007-07-12 Appareil de distillation de fines et appareil de réfrigération du type à absorption d'ammoniac utilisant la chaleur perdue des gaz d'échappement WO2008098436A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2007100269959A CN100445671C (zh) 2007-02-12 2007-02-12 利用尾气余热的氨水吸收式制冷装置
CN200710026995.9 2007-02-12

Publications (1)

Publication Number Publication Date
WO2008098436A1 true WO2008098436A1 (fr) 2008-08-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002132 WO2008098436A1 (fr) 2007-02-12 2007-07-12 Appareil de distillation de fines et appareil de réfrigération du type à absorption d'ammoniac utilisant la chaleur perdue des gaz d'échappement

Country Status (2)

Country Link
CN (1) CN100445671C (fr)
WO (1) WO2008098436A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114909828A (zh) * 2022-05-09 2022-08-16 中颉能源科技(上海)有限公司 一种吸收式制冷***及发生器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019575B (zh) * 2012-09-06 2016-08-24 泰山集团股份有限公司 氨水吸收制冷机
CN113899110B (zh) * 2021-11-15 2023-03-21 中国科学院理化技术研究所 一种具有中间过程的吸收式冷热联供***
CN114234471B (zh) * 2021-11-29 2023-06-16 中国科学院理化技术研究所 一种吸收式冷热联供***

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033274A (en) * 1989-11-28 1991-07-23 Erickson Donald C Rectification reflux by latent heat exchange with partially depressurized absorbent
JPH10132421A (ja) * 1996-10-28 1998-05-22 Sanyo Electric Co Ltd 吸収式冷凍装置
JPH10148417A (ja) * 1996-11-20 1998-06-02 Tokyo Gas Co Ltd 水系精留装置
CN1206816A (zh) * 1997-07-30 1999-02-03 本田技研工业株式会社 吸收式冷冻机的精馏装置
CN1766462A (zh) * 2005-10-31 2006-05-03 庞启东 一种利用尾气余热的氨水吸收式制冷装置

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Publication number Priority date Publication date Assignee Title
DE2535489C3 (de) * 1975-08-08 1978-05-24 Linde Ag, 6200 Wiesbaden Verfahren und Vorrichtung zur Zerlegung eines tiefsiedenden Gasgemisches
DE3722746A1 (de) * 1987-07-09 1989-01-19 Linde Ag Verfahren und vorrichtung zur luftzerlegung durch rektifikation
CN1025067C (zh) * 1989-02-23 1994-06-15 琳德股份公司 精馏分离空气的方法及装置
CN2842312Y (zh) * 2005-11-03 2006-11-29 庞启东 一种利用尾气余热的氨水吸收式制冷装置
CN201014847Y (zh) * 2007-02-12 2008-01-30 庞启东 利用尾气余热的氨水吸收式制冷装置用的精馏器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033274A (en) * 1989-11-28 1991-07-23 Erickson Donald C Rectification reflux by latent heat exchange with partially depressurized absorbent
JPH10132421A (ja) * 1996-10-28 1998-05-22 Sanyo Electric Co Ltd 吸収式冷凍装置
JPH10148417A (ja) * 1996-11-20 1998-06-02 Tokyo Gas Co Ltd 水系精留装置
CN1206816A (zh) * 1997-07-30 1999-02-03 本田技研工业株式会社 吸收式冷冻机的精馏装置
CN1766462A (zh) * 2005-10-31 2006-05-03 庞启东 一种利用尾气余热的氨水吸收式制冷装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114909828A (zh) * 2022-05-09 2022-08-16 中颉能源科技(上海)有限公司 一种吸收式制冷***及发生器
CN114909828B (zh) * 2022-05-09 2024-06-11 中能绿科(上海)技术有限公司 一种吸收式制冷***及发生器

Also Published As

Publication number Publication date
CN101042272A (zh) 2007-09-26
CN100445671C (zh) 2008-12-24

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