CN201110683Y

CN201110683Y - Plate fin type ice cold accumulator

Info

Publication number: CN201110683Y
Application number: CNU2007201880019U
Authority: CN
Inventors: 阮登芳; 吴双应; 高虹; 李友荣; 彭岚
Original assignee: Chongqing University
Current assignee: Chongqing University
Priority date: 2007-10-18
Filing date: 2007-10-18
Publication date: 2008-09-03
Anticipated expiration: 2017-10-18

Abstract

A plate-fin type ice cold storage device belongs to the field of cold storage engineering, which comprises a cold storage tank, a cold storage medium, a replenishing pipe, an inlet seal head, an outlet seal head, a bracket, a drain pipe, a rear end seal head, a heat transfer cylinder, a medium outlet pipe connection and a medium inlet pipe connection, wherein the heat transfer cylinder is composed of straight porous rectangular fins, side seal strips and a flat partition board. A refrigerant or a secondary refrigerant is put in the heat transfer cylinder which is composed of the straight porous rectangular fins via the medium inlet pipe connection and then the refrigerant or the secondary refrigerant which transfers heat with the cold storage medium in the cold storage tank via the heat transfer cylinder flows out from the medium outlet pipe connection. Compared with traditional ice storage devices, the finned tube ice storage device not only greatly enlarges ice-making area or ice-melting area, reduces additional thermal resistance which is caused by expansion of an ice layer, further achieves a more compact and higher effective structure, but also can effectively increase cold storage rate and cold release rate, and improve running status of refrigerating machines.

Description

A kind of plate-fin Cold-storage using ice

Technical field:

Title of the present utility model is a kind of plate-fin Cold-storage using ice, belongs to cold-storage engineering field.

Background technology:

Along with the expansion of development and national economy, city size and the change of power structure, peak load is the trend of quick growth, most of urban distribution networks are faced with the situation of peak power deficiency, valley power surplus, the peak-valley difference of each big electrical network has all surpassed 30% of peak load, and is indivedual even reach 50%.The peak-valley difference of Zeng Jiaing has brought sizable difficulty for the peaking operation of electrical network year by year, therefore, how to realize that by the load of adjusting user side " peak load shifting ", balanced load have become a problem demanding prompt solution.For this reason, the peak and valley time electrovalence policy has been formulated in each province and city successively, encourages the user to develop valley power, farthest utilize existing power equipment, realizes " peak load shifting ", alleviates the contradiction of electrical network peak short of electricity.Wherein, ice storage technology is an important technique measure that realizes electric power " peak load shifting " scheme.

From domestic and foreign literature and license situation, at present to adopt maximum be static ice making to the Cold-storage using ice ice making mode on the engineering, and its heat-transfer surface is various coiled, board-like or various seal, and dynamic ice-making is less.In static ice making, because employing is tubular type or board-like surface, therefore, the ice making area in the unit volume is less, and the ice making rate can reduce gradually along with ice-making process.The utility model patent proposes to utilize the new thought of plate-fin structure as the cold-storage assembly, can solve effectively that the heat transfer property that traditional coiled structure, plank frame and packaged type structure Cold-storage using ice exist is poor, the regenerator volume big, structure is not compact and hold, put problems such as the cooling rate rate is low.

The utility model content:

The technical problems to be solved in the utility model provides a kind of high-efficiency compact formula Cold-storage using ice.Store the cold that electronic refrigeration produces in the low power consumption phase at night, peak times of power consumption discharge cold by day, satisfy the needs of producing or living, therefore, not only can farthest utilize existing power equipment, realize " peak load shifting ", alleviate the contradiction of electrical network peak short of electricity, and can improve generating set operation conditions, improve unit operation efficient, reduce environmental pollution, simultaneously, also can reduce the installed capacity of refrigeration unit, guarantee refrigeration unit operation efficiently and stably under approaching full load.

For solving the problems of the technologies described above, the technical scheme of a kind of plate-fin Cold-storage using ice of the utility model is as follows:

Form by cold-storage groove, cool storage medium, liquid supplementation pipe, import and export end socket, bearing, discharging tube, rear end end socket, heat exchange core body, media outlet adapter and medium entrance sleeve, and a kind of plate-fin Cold-storage using ice that heat exchange core body is made up of straight porous rectangular fin, side seal bar and flat partition board, cold-producing medium or refrigerating medium enter the heat exchange core body that is made of straight porous rectangular fin by the medium entrance sleeve, and cold-producing medium or refrigerating medium take over to be flowed out by media outlet after by the cool storage medium heat exchange in heat exchange core body and the cold-storage groove; Cold-producing medium or refrigerating medium import and export are taken over the same side that is positioned at core body, and link to each other with the import and export end socket; The opposite side of core body is the rear end end socket, is used for the change that cold-producing medium or refrigerating medium flow to; In order in core body, to form flowing and heat exchanger channels of cold-producing medium or refrigerating medium, flat partition board and side seal bar are installed also in the core body; In addition, for the liquid level of the cool storage medium in the adjustment cold-storage groove and the needs of operation maintenance, at the upper and lower liquid supplementation pipe and the discharging tube of being equipped with of cold-storage groove.

The utility model is characterised in that with efficient plate fin heat-exchanging surface and replaces traditional coiled and board-like surface, cold-producing medium or refrigerating medium flow in the passage that adjacent two dull and stereotyped width that constitute are (5-10) mm, and on fin, have diameter is used to improve heat-transfer effect for (0.5-2) mm aperture, aperture is fork row or in-line arrangement form, and percent opening is (5-10) %.Compare with traditional Cold-storage using ice, not only greatly expand ice making or ice-melt area, reduce the additional thermal resistance that brings that thickens owing to ice sheet effectively, structure is compact efficient more, and can improve effectively and hold, put the cooling rate rate, improves the operation conditions of refrigeration machine.

Description of drawings:

Fig. 1 is a kind of structure chart of plate-fin Cold-storage using ice, and Fig. 2 is that A is to perspective view among Fig. 1, and Fig. 3 is the heat exchange core body structure chart.Wherein: the 1-cold-storage groove; The 2-cool storage medium; The 3-liquid supplementation pipe; 4-import and export end socket; The 5-bearing; The 6-discharging tube; 7-rear end end socket; The 8-heat exchange core body; The 9-media outlet is taken over; 10-medium entrance sleeve; 11-is straight porous rectangular fin; 12-side seal bar; The 13-flat partition board.

The specific embodiment:

Fig. 1 represents that also a cold storage capacity is a kind of plate-fin Cold-storage using ice of 100kWh.

When cold-producing medium or refrigerating medium enter the heat exchange core body 8 that is made of straight porous rectangular fin 11 by medium entrance sleeve 10, cold-producing medium or refrigerating medium are taken over 9 by media outlet after by cool storage medium 2 heat exchange in heat exchange core body 8 and the cold-storage groove 1 and are flowed out.Cold-producing medium or refrigerating medium import and export are taken over the same side that is positioned at core body, and link to each other with import and export end socket 4; The opposite side of core body is a rear end end socket 7, is used for the change that cold-producing medium or refrigerating medium flow to; In order in core body, to form flowing and heat exchanger channels of cold-producing medium or refrigerating medium, flat partition board 13 and side seal bar 12 are installed also in the core body.In addition, for the liquid level of the cool storage medium in the adjustment cold-storage groove and the needs of operation maintenance, at the upper and lower liquid supplementation pipe 3 and the discharging tube 6 of being equipped with of cold-storage groove.Through measuring and calculating, ice making or ice-melt area reach (500-700) m in this high-efficiency compact formula Cold-storage using ice unit volume ²/ m ³Compare with sealed with traditional coiled, average ice making and ice-melt speed improve (30-50) %, and heat transfer temperature difference reduces (1-2) ℃.

Claims

1. plate-fin Cold-storage using ice, by cold-storage groove, cool storage medium, liquid supplementation pipe, advance, the outlet end socket, bearing, discharging tube, the rear end end socket, heat exchange core body, media outlet is taken over, the medium entrance sleeve is formed, and heat exchange core body is by straight porous rectangular fin, the side seal bar, flat partition board is formed, it is characterized in that in the heat exchange core body of Cold-storage using ice, adopting efficient plate fin heat-exchanging surface, to substitute traditional coiled and board-like surface, cold-producing medium or refrigerating medium flow in the passage that adjacent two dull and stereotyped width that constitute are (5-10) mm, and on fin, have the aperture of diameter for (0.5-2) mm, aperture is fork row or in-line arrangement form, and percent opening is (5-10) %; Cold-producing medium or refrigerating medium enter the heat exchange core body that is made of straight porous rectangular fin by the medium entrance sleeve, and cold-producing medium or refrigerating medium take over to be flowed out by media outlet after by the cool storage medium heat exchange in heat exchange core body and the cold-storage groove; Cold-producing medium or refrigerating medium import and export are taken over the same side that is positioned at core body, and link to each other with the import and export end socket; The opposite side of heat exchange core body is the rear end end socket, is used for the change that cold-producing medium or refrigerating medium flow to; Flat partition board and side seal bar also are installed to form flowing and heat exchanger channels of cold-producing medium or refrigerating medium in heat exchange core body; In addition, be equipped with liquid supplementation pipe and discharging tube with the liquid level of adjusting the cool storage medium in the cold-storage groove and the needs of operation maintenance cold-storage groove upper and lower.