CN2193516Y

CN2193516Y - Calcium chloride-ammonia absorbing refrigerating unit

Info

Publication number: CN2193516Y
Application number: CN 94240441
Authority: CN
Inventors: 梅宁; 李华军
Original assignee: Ocean University of Oingdao
Current assignee: Ocean University of Oingdao
Priority date: 1994-05-17
Filing date: 1994-05-17
Publication date: 1995-03-29
Anticipated expiration: 2004-05-17

Abstract

The utility model relates to a calcium chloride-ammonia absorbing refrigerating unit, which belongs to a refrigerating unit and is mainly used for the refrigeration of big and small ships to keep marine products fresh. The utility model is characterized in that the refrigerating unit is composed of two in one generating and absorbing elements filled with adsorbing agent and made of a refrigerating tube added with lateral fins by the sealing of the casing, unidirectional valves, the elements of a condenser, flow regulating valves, and the elements of the evaporator, etc. The utility model has the advantages of simple structure, low cost, and convenient installation and operation. The utility model has the advantages that the energy can be saved from that the utility model can use the residual heat of the exhaust gas of the diesel engine on the ships of the big and small type for refrigerating, the distribution of adsorbing agent is uniform along the refrigerating tube and has little influence by the vibration of the ships, the refrigerating effect is good, etc.

Description

Calcium chloride-ammonia absorbing refrigerating unit

A kind of calcium chloride---ammonia adsorption refrigerating device belongs to technical field of refrigeration equipment, in being mainly used in, nobby utilizes this ship diesel exhaust gas utilizing waste heat for refrigeration to the catches cold storing and fresh-keeping.

Various refrigeration machines are a lot of in prior art, but do not see what useful marine diesel exhaust heat freezed as yet, calcium chloride especially of no use---the ammonia absorption type refrigerating.The applicant had not long ago designed a kind of " marine diesel exhaust heat adsorbent refrigerator ", applied for utility model patent on March 16th, 1994, application number is 94225987.4, though in solving, nobby is because of no refrigeration plant, have to be with pickling from the ice-cold Tibetan catches of taking on the bank or with salt, cannot say for sure the problem of catches quality, but in enforcement and process on probation, find former design because the fin of installing on its single tube wall is spiral helicine, the adsorbent that intercostal is filled glides along the hand of spiral because of the vibration meeting of ship and causes the adsorbent skewness, and refrigeration is undesirable.

The purpose of this utility model be to provide a kind of simple in structure, the dependable performance cost is low, can utilize medium and small diesel engine of fishing vessel exhaust heat refrigeration and adsorbent to be evenly distributed the calcium chloride that refrigeration is more desirable--the ammonia adsorption refrigerating device.

According to calcium chloride---ammonia has CaCL ₂(s)+8NH ₃(g) ← → CaCL ₂8NH ₃(s) character and marine diesel exhaust characteristics, at the subject matter that exists in the prior art, especially adsorbent vibrates the problem of easy skewness because of being subjected to fishing boat, basic design of the present utility model is transformed on the basis of No. 94225987.4 patent applications that the applicant has applied for, be about to original in the single spiral fin of dress or outer dress change in dress or outer dress all and the cross rib sheet that vertically is connected as a single entity of tube wall and simultaneously in two kinds of fins of the perpendicular fin parallel of adorning or adorning outward with tube wall, the steel wire of inner cover also adds fixture to be fixed.

Of the present utility modelly be characterised in that described calcium chloride---the ammonia adsorption refrigerating device is by generation/absorption device, check valve, condenser parts, choke valve, the evaporation device, shell, the refrigeration single tube, for the heating flue gas or/and central passage pipe that cooling agent alternately passes through and the adsorbate passway formation that is connected as a single entity with above-mentioned shell, distinguishing characteristics of the present utility model is above-mentioned refrigeration single tube by Nei Jia or adds the tube wall of the cross rib sheet perpendicular with it, be filled in the adsorbent between this cross rib sheet sheet and the sheet, inner cover or outer cover in order to the stainless steel cloth that covers above-mentioned adsorbent and fixture thereof and be contained in the refrigeration single tube the perpendicular fin that parallels of the inside or outermost and tube wall constitute, it is one group that per 2～4 above-mentioned finned refrigeration single tubes and central passage pipe are encapsulated in the shell of same above-mentioned band adsorbate passway, form an above-mentioned generation/absorption device, this device and above-mentioned check valve for per 1～3 group, condenser parts, choke valve, connect by pipeline between each parts such as evaporation device.Above-mentioned steel wire fixture, is promptly tied steel wire with finer wire then for the steel wire coiling the steel wire of outer cover, then be helical spring for the inner cover steel wire, promptly leans on the elastic force of spring that steel wire is supported.Above-mentioned adsorbent is best with calcium chloride.

Outstanding advantage of the present utility model be simple in structure, cost is low, easy to install, stable and reliable for performance, can utilize middle-size and small-size diesel engine of fishing vessel exhaust heat refrigeration, to satisfy the requirement of fishing boat to its catches cold storing and fresh-keeping, not only energy-conservation but also can guarantee the quality of catches, the time that prolongs fishing boat operation at sea is to improve the output and the output value.Particularly changing spiral fin is horizontal, vertical two kinds of fins, has guaranteed the influence that adsorbent evenly distributes and not vibrated by fishing boat along the refrigeration single tube, and refrigeration is desirable more.

Accompanying drawing 1 is the utility model operation principle and assembling schematic diagram;

Accompanying drawing 2 is generation/absorption device structural representation;

Accompanying drawing 3 adds the refrigeration single tube structural representation of cross rib sheet for tube wall;

Accompanying drawing 4 is for adding the refrigeration single tube structural representation of cross rib sheet in the tube wall.

1 and 2 generation/absorption devices among the figure, 3 and 7 check valves, 4 condenser parts, 5 choke valves, 6 evaporation devices, 8 generation/absorption device outer cases, 9 refrigeration single tubes, 10 central passage pipes, 11 adsorbate passwaies, 12 with fin refrigeration single tube tube wall, add in 13 or add the cross rib sheet, 14 adsorbents, 15 stainless steel cloths, 16 steel wire fixtures, 17 perpendicular fins.

With the most preferred embodiment of 100W cold gap refrigeration, the architectural feature of the present utility model and the course of work further are summarized as follows: by three 938 * 500(units is mm in conjunction with the accompanying drawings, down with) finned steel tube wall 12 outer dress cross rib sheets 13 and fill CaCL ₂8NH ₃The refrigeration single tube 9 of adsorbent 14 is encapsulated in and forms generation/absorption device 1 and 2 in 4100 * 8 * 500 steel seamless tubular outer shell 8, condenser parts 4, and evaporation device 6 is all selected the steel share ware for use by 150KCaL/hr condensation number and evaporation heat; Check valve 3 and 7 and choke valve 5 select corresponding steel general part for use, between above-mentioned each parts according to being welded to connect by steel pipe as shown in Figure 1.When the flue gas of marine diesel discharge heats generation/absorption device 1 and 2, NH ₃From CaCL ₂8NH ₃Middle desorption goes out to become steam state, is condensed into liquefied ammonia after choke valve 5 enters evaporation device 6 refrigeration, and when cooling device 1 and 2 taking place then/adsorbs becomes the absorption device, colder CaCL ₂Just absorb the NH in the evaporation device 6 ₃, make it to become CaCL ₂8NH ₃Thereby, finished a kind of refrigeration cycle.

Change as present embodiment:

1, cross rib sheet 13 can be added on the inwall of refrigeration single tube tube wall 12 as shown in Figure 4, and inner cover steel wire 15 usefulness helical spring is correspondingly fixed;

2, can form a refrigerating plant by the above-mentioned 2 groups generation identical with 3 groups/absorption devices, each group alternately is heated or cooled during work, makes it to become the continuous cooling device;

3, the radical of packaged refrigeration single tube can change in the scope of permission in each generation/absorption device.

Claims

1, a kind of calcium chloride-ammonia adsorption refrigerating device, by generation/absorption device [1] and [2], check valve [3] and [7], condenser parts [4], choke valve [5], evaporation device [6], shell [8], refrigeration single tube [9], for the heating flue gas or/and the central passage pipe [10] that cooling agent alternately passes through and constitute with adsorbate passway [11] that above-mentioned shell is connected as a single entity, of the present utility modelly be characterised in that above-mentioned refrigeration single tube [9] is by Nei Jia or add the tube wall [12] of the cross rib sheet [13] perpendicular with it, be filled in the adsorbent [14] between above-mentioned cross rib sheet [13] sheet and the sheet, stainless steel cloth of inner cover or outer cover [15] and fixture [16] thereof and be contained in refrigeration single tube [9] the inside or outmost perpendicular fin [17] constitute, it is one group that per 2～4 above-mentioned finned refrigeration single tubes [9] and central passage pipe [10] are encapsulated in the shell [8] of same above-mentioned band adsorbate passway [11], form above-mentioned generation/absorption device [1] and [2], this device [1] and [2] and above-mentioned check valve [3] and [7] for per 1～3 group, condenser parts [4], choke valve [5], evaporation device [6] waits between each parts and connects by pipeline.

2, calcium chloride according to claim 1---ammonia adsorption refrigerating device is characterized in that above-mentioned steel wire fixture ［ 16 ］ then is steel wire coiling to the outer cover steel wire, is helical spring for the inner cover steel wire.

3, calcium chloride according to claim 1---ammonia adsorption refrigerating device is characterized in that above-mentioned adsorbent ［ 14 ］ is best with calcium chloride.