CN2516918Y - Directly-cooling micro-freezing antistaling device and special evaporimeter and condenser used on fishing boat - Google Patents

Abstract

The utility model relates to a partial freezing preservation unit of a direct cooling fishing vessel, a special evaporator and a condenser, which are characterized in that, the direct cooling evaporator is arranged in suspended ceiling style on the top part of a heat insulation fish warehouse; evaporation area and evaporation are enlarged by increasing pipe diameter and pipe length and arranging a thread structure on the inner wall of the pipe; the condenser adopts the extension-type structure; a screw thread is arranged on the inner wall of an outer tube; a refrigerant airflow passes the circular spatial channel formed by the inner tube and the outer tube by rotation and performs heat exchange with the convective deep sea cooling water inside the inner tube, therefore the refrigeration efficiency is improved, and the refrigeration efficiency of the preservation unit is 30% more than that of the conventional refrigeration equipments; a compressor adopts corrosion protection and vibration prevention, which can refrigerate normally when the rotational speed fluctuates within 40%; in addition, compared with the deep sea water spraying method, the fish body preserved by the utility model is free of impairment, fresh, glittering and glossy. The utility model has the advantages of simple equipment, compact size, small investment, energy saving and labor saving, convenient assembly and matching, and especial application for the update and the assembly of medium or small sized fishing vessels.

Description

Direct-cooling type fishing boat preservation by partial device and special evaporator and condenser

The utility model belongs to the refrigerating fresh-keeping equipment technical field, in particularly a kind of be suitable for, direct-cooling type fishing boat preservation by partial device and evaporimeter and condenser on the nobby.

At present, existing seagoing fishing vessel fishing operation, fresh-keeping based on tradition " spreading the ice method ", " water-ice method ", " air cooling method ", " deep cooling water spray process " is difficult to promote though improvement is arranged, and obviously has shortcoming." spread water law ", " water-ice method " fish storehouse preservation temperature is inhomogeneous, is subject to the water logging bubble, fresh keeping time is short, causes local metamorphism, compressing, friction texturizing easily, ice-out must be homeward, grabs incessantly and fish for opportunity, influences output; " air cooling method " fishery products are caught a cold easily air-dry, and fish surface texture becomes bad; " deep cooling water spray process " (as China Patent No. be 96103025.9 and the patent of 97242248.X) be to enter the pipeline that several spray throwers are installed on the Yu Cang top with deep-sea water as refrigerating medium to spray, promptly in deep cooling water system flow container, deep cooling water is cooled to be incubated the required temperature in storehouse earlier by the evaporimeter cold energy, and then several spray throwers that send to the Yu Cang top through cooling water pulsating pump and coolant outlet hose road spray, spray back water flows into water leg, therefore, not only deep cooling water system flow container and spray thrower make trouble, the cost height, volume is big, inconvenience is installed, and to adopt the power supply of generator special constant voltage source, the loss of refrigerating medium heat-exchange power is big, energy consumption is higher, Zui Da shortcoming is after fish surface in the fish storehouse is subjected to the cold water spray in addition, the shiny pull-up in surface falls, generation is dashed by water to change, influence fishery-ies product presentation quality and value.

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provide a kind of and can not only omit deep cooling water system flow container, devices such as spray thrower, water leg, cooling water pulsating pump, generator and motor, and compressor can directly be dragged by the operation main frame of not constant speed navigation, can normally freeze, can keep little temperature and humidity, the external sight of fish of fresh-keeping back complete glossy, a kind of direct-cooling type fishing boat preservation by partial device and special evaporator and condenser that refrigerating efficiency is high of freezing in the fish storehouse.

The purpose of this utility model can be achieved by the following technical programs, a kind of direct-cooling type fishing boat preservation by partial device, mainly link into an integrated entity, it is characterized in that by compressor 1, condenser 2, fusible plug 3, maintenance valve 15, filter 14, expansion valve 13, evaporimeter 10, deep-sea water cooling water pump 8, cooling water inlet and outlet piping (7,6) and refrigeration system cold-producing medium connecting pipe 16:

A, employing directly cooling evaporator 10 ceiling mounting types are installed in the top in insulation fish storehouse 9;

The import and export of b, water pump 8 is connected with deep-sea cold water, condenser water inlet pipe 7 by conduit pipeline respectively, and is discharged outside the storehouse by the coolant outlet 6 of condenser at condenser 2 refrigerated sea water after heat exchange; Shipping work main frame 21 is directly hauled compressor 1; high pressure air exhaust valve 19 on the compressor; be connected with evaporator outlet 11 with the refrigerant inlet 4 of condenser respectively by cold-producing medium connecting pipe 16 with base pressure inlet valve 20; the refrigerant outlet 5 of condenser 2 is connected with evaporator 12 by cold-producing medium connecting pipe 16; and expansion valve 13 is installed on the inlet pipeline of evaporimeter (10); maintenance valve 15 is installed on the refrigerant outlet pipeline of condenser 2; on the pipeline between maintenance valve 15 and the expansion valve 13, filter 4 is installed also, on condenser 2, is provided with fusible plug 3 protectors in addition.

Described compressor adopts opened compressor, has anticorrosion, antihunt action, can normally freeze in 40% o'clock upper and lower the floating of rated speed, satisfies the refrigeration requirement of refrigeration system, keeps the warm storehouse of insulation freezer refrigerated storage temperature ± 5 ℃ of interior fluctuations of scope.

Described evaporimeter adopts copper pipe to make, it is 19mm～22mm scope that caliber is increased, it is 130m～320m scope that length of tube increases, and the inwall at pipe is provided with screw thread, thereby the cold-producing medium that makes can form rotation type air current and pass through in bigger caliber, increase evaporator area and evaporation capacity, improved rate of heat exchange and refrigerating efficiency.

Described condenser adopts sleeve type structure, deep-sea cooling water to be passed in and out by interior pipe cooling water pipe, cold-producing medium is carried by the formed annular space of inner and outer pipe, on the inwall of outer tube, be provided with screw thread equally, cold-producing medium is rotated in the annular space passage, thereby improve heat exchange and refrigerating efficiency.

The utility model advantage compared with prior art is:

1, adopt the directly cooling evaporator ceiling mounting type to be installed in the top in insulation fish storehouse, omitted the equipment such as spray thrower, system flow container, cold water filter, cooling water pulsating pump, water leg, generator and motor of methods such as " deep cooling water spray process ", " air cooling method ", equipment is simple, volume is little, small investment, saving oil consumption, reduce workload.Need not transform existing cabin, it is convenient to use, install, mate.

2; adopt the directly cooling evaporator ceiling mounting type to be installed in insulation Yu Cang top; the sealing of fresh-keeping fish storehouse can utilize cold air sinking principle; realize free convection; make the temperature in the fish storehouse even; shut down top, macrura reevesii storehouse and enter the defrost stage; the globule is evenly trickled down in the fish storehouse comprehensively naturally, keeps relative temperature, and what cause in the time of can not producing the fish dehydration is air-dry; sclerosis and yellowing phenomenon; also can not produce because of after the cool water shower of deep-sea, the fish surface water dashes the phenomenon of changing, the compressing friction of no ice cube; thereby make fish body not damaged; keep outward appearance complete fresh, shiny glossy, improve the fishery products value of the product.

3, adopt refrigerant tubing diameter and the increase duct length that increases evaporimeter, and utilize inner-walls of duct to be provided with the structure of screw thread, cold-producing medium is rotated in the pipeline, thereby increase disengagement area and evaporation capacity, improved the rate of heat exchange and the refrigerating efficiency of evaporimeter greatly; Condenser adopts sleeve type structure, utilize the natural conditions input inner condensing tube road at the bottom of the water water temperature of deep-sea, cold-producing medium is by the formed annular space passage of inwall of interior conduit outer wall and Outer Tube, the inwall that adds upper exterior tube is provided with screw thread, make the deep-sea cooling water sufficient heat exchange of cold-producing medium rotation by convection current in annular space passage and the pipeline, improved rate of heat exchange, exported cold refrigerant liquid, thereby condensation vessel volume has reduced obviously.By evaporimeter, structure of condenser is improved, and the refrigerating efficiency that makes improves greatly, and its refrigerating efficiency improves more than 30% than conventional fishing boat refrigeration plant.

4, adopt fusible plug super-pressure protected mode, but shipping work main frame direct mechanical formula haul compressor, energy-conservation saving of labor, overcome can not normal power generation because of the engine speed shakiness shortcoming, omitted generator, motor and consumer unit, saved equipment cost.

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram that the utility model cooling flow and equipment connect.

Fig. 2 is the structural representation of the utility model equipment mounting arrangements.

Fig. 3 is the structural representation of the utility model evaporimeter.

Fig. 4 is the utility model structure of condenser schematic diagram.

Fig. 5 is the section helicitic texture schematic diagram of the outer tube wall of evaporator tube inwall, condenser tube.

Among the figure: 1 compressor, 2 condensers, 3 fusible plugs, 4 refrigerant inlet, 5 refrigerant outlets, 6 cooling water outlet pipe roads, 7 cooling water inlet pipe roads, 8 water pumps, 9 fish storehouses, 10 evaporimeters, 11 evaporator outlets, 12 evaporators, 13 expansion valves, 14 filters, 15 maintenance valves, 16 cold-producing medium connecting pipes, 17 low pressure gauges, 18 high-pressure manometers, 19 high pressure air exhaust valves, 20 low pressure air suction valves, 21 main frames, 22 main frame cabins, 23 interior pipes, 24 outer tubes, 25 annular space passages, 26 fluid reservoirs, 27 screw threads, 28 tube wall circumferential direction, 29 tube wall length directions.

Shown in Figure 1, the high pressure air exhaust valve 19 of the compressed machine 1 of the utility model cooling flow is pressed into high pressure, high temperature refrigerant to cold-producing medium, cool off through condenser 2 and deep-sea cooling water, cooling back cold-producing medium is by condenser 2 outputs, through maintenance valve 15, filter 14, expansion valve 13 evaporimeter (10) sweat cooling that reduces pressure, last cold-producing medium is drawn onto in the compressor 1 by the low pressure air suction valve 20 of compressor again.

Shown in Figure 2, equipment of the present utility model is installed and used the structural representation of state, compressor 1 is installed in cabin 22 main frames 21 sides and is dragged by main frame 21 direct mechanical, and condenser 2, fusible plug 3, maintenance valve 15, filter 14 and compressor 1 are fused by cold-producing medium connecting pipe 16 and also be installed in the cabin (22); Water pump 8 peculiar to vessel also is installed in the cabin, water pump 8 entery and delivery ports peculiar to vessel are connected by the inlet channel 7 of waterpipe with deep-sea cold water, condenser 2 respectively, seawater is discharged outside the storehouse by the outlet conduit 6 of condenser 2 after the heat exchange, expansion valve 13 fuses with evaporimeter 10, is fixedly mounted on the top in insulation fish storehouse 9 by fixed head.

Shown in Figure 3, be the structural representation of a kind of embodiment evaporimeter of the present utility model, cold-producing medium is entered by import 12, by outlet 11 outputs.It also adopt to increase the copper pipe diameter and increases the length mode and increase disengagement area and evaporation capacity except be provided with screw thread 27 structures on the copper pipe inwall, thereby improves rate of heat exchange and refrigerating efficiency, general caliber relatively more after a little while, pipe range is long; When caliber was big relatively, pipe range just can be lacked relatively; Usually during 25～50 cubic metres of nobby insulation fish warehouse spaces, refrigeration work consumption is generally 3～5 horsepowers.1. when the copper pipe caliber was 16mm, pipe range rose to 260m～320m; 2. when the copper pipe caliber was 19mm, pipe range rose to 160m～200m; 3. when the copper pipe caliber was 22mm, pipe range rose to 130m-180m.The copper pipe caliber of present embodiment adopts 19mm, and this pipe range of its copper rises to 160m～200m.

Shown in Figure 4, be a kind of embodiment structure of condenser schematic diagram of the present utility model, condenser adopts sleeve type structure, the inwall of its outer tube is provided with screw thread 27, deep-sea cold water is by water inlet pipe 7 input inner condensing tubes 23, discharge outside the storehouse by outlet conduit 6 again, cold-producing medium is entered the interior pipe 23 of condenser by condenser other end refrigerant inlet 4, rotate on the annular space passage 25 that outer tube 24 forms and pass through, airflow direction is opposite with deep-sea flow of cooling water direction, make its sufficient heat exchange, improve rate of heat exchange, cold-producing medium through cooling enters fluid reservoir 26 (fluid reservoir can or not be provided with according to the setting of compressor performance needs), deliver to the import 12 that filter 14 is filtered to evaporimeter 10 by refrigerant outlet 5 outputs again, the diameter of the inner condensing tube 23 of present embodiment is 19mm, and outer tube 24 diameters are 28mm.

Screw thread 27 structural representations shown in Figure 5, that evaporimeter copper pipe inwall and condenser sleeve pipe outer tube wall are provided with, 28 is the circumferential direction of pipe among the figure, 29 is the length direction of pipe.

Claims (5)

1, a kind of direct-cooling type fishing boat preservation by partial device, mainly link into an integrated entity, it is characterized in that by compressor (1), condenser (2), fusible plug (3), maintenance valve (15), filter (14), expansion valve (13), evaporimeter (10), deep-sea water cooling water pump (8), cooling water inlet and outlet pipe lines (7,6) and refrigeration system cold-producing medium connecting pipe (16):

A, employing directly cooling evaporator (10) ceiling mounting type are installed in the top in insulation fish storehouse (9);

The import and export of b, water pump (8) is connected with deep-sea cold water, condenser water inlet pipe (7) by conduit pipeline respectively, and is discharged outside the storehouse by the coolant outlet (6) of condenser at condenser (2) refrigerated sea water after heat exchange; Shipping work main frame (21) is directly hauled compressor (1); high pressure air exhaust valve on the compressor (19); be connected with evaporator outlet (11) with the refrigerant inlet (4) of condenser respectively by cold-producing medium connecting pipe (16) with base pressure inlet valve (20); the refrigerant outlet (5) of condenser (2) is connected with evaporator (12) by cold-producing medium connecting pipe (16); and expansion valve (13) is installed on the inlet pipeline of evaporimeter (10); maintenance valve (15) is installed on the refrigerant outlet pipeline of condenser (2); on the pipeline between maintenance valve (15) and the expansion valve (13), filter (4) is installed also, on condenser (2), is provided with fusible plug (3) protector in addition.

2, a kind of direct-cooling type fishing boat preservation by partial device according to claim 1 is characterized in that compressor (1) adopts opened compressor, and multi-cylinder is worked respectively.

3, a kind of special-purpose directly cooling evaporator (10) that is used on the described direct-cooling type fishing boat of the claim 1 preservation by partial device, the inwall that it is characterized in that evaporator tube is provided with screw thread (27), the increasing diameter of pipe is 16mm～22mm scope greatly, it is 130m～320m scope that pipe range increases, the diameter of its pipe adopts 19mm, and it is that 160m～200m scope is best that pipe range increases.

4, a kind of special-purpose condenser (2) that is used on the described direct-cooling type fishing boat of the claim 1 preservation by partial device is characterized in that condenser (2) adopts sleeve type structure; Outer tube (24) inwall is provided with screw thread (27); The deep-sea cooling water is by the turnover of interior pipe (23) pipeline, and refrigerant gas stream is passed through by annular space siphunculus (25) rotation that inner and outer pipe constitutes.

5, condenser according to claim 4 is characterized in that can being provided with or not being provided with on the condenser (2) fluid reservoir (26).

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