CN205209287U

CN205209287U - Freezing calandria with reinforce heat transfer device

Info

Publication number: CN205209287U
Application number: CN201521050032.9U
Authority: CN
Inventors: 杜红普; 申芙荣; 李敏; 王恩宇
Original assignee: Hebei University of Technology
Current assignee: Hebei University of Technology
Priority date: 2015-12-16
Filing date: 2015-12-16
Publication date: 2016-05-04
Anticipated expiration: 2025-12-16

Abstract

The utility model discloses a freezing calandria with reinforce heat transfer device, including fin, heated board, bolt and freezing calandria, it has bolt hole and fin insertion groove to open on the fin, the fin insertion groove is used for inserting the one end of fin the other end of fin, forms the criss -cross wing column structure in both ends, the middle parcel of fin that forms the wing column structure freezes the single -row of calandria, and expand along the tunnel segment direction at both ends, contacts with tunnel segment to the cold volume of part of calandria will be freezed and tunnel segment will be transfered through the fin, the bolt is installed in the bolt hole for control forms the fin of wing column structure and tunnel segment's extent of contact, the heated board is laid on freezing calandria and fin for it scatters and disappears to reduce cold volume. The utility model discloses simple structure, convenient operation, the heat transfer effect is obvious.

Description

A kind of freezing comb with reinforced heat exchanger

Technical field

The utility model belongs to heat transfer technical field, specifically a kind of freezing comb with reinforced heat exchanger.

Background technology

Along with socioeconomic development, Urbanization Process In China is accelerated further, and urban population increases fast, and traffic imbalance between supply and demand becomes increasingly conspicuous, and large size city traffic congestion is more and more serious.The continuous growth of population and the relative decrease in space, the exploitation underground space has become important means and the development trend that the mankind expand living space.Subway construction solves the important means of urban transport problems, and have that capacity efficiency is high, energy consumption is low, it is little, quick, punctual to pollute and the obvious advantage such as safety.By regulation, between two single track line tunnels, when tunnel link up length be greater than 600m time, should service channel be established.

Freezing is reinforced due to its significant economic benefit and social benefit, has extensive use when implementing Metro Connected Passage-way Construction in the stratum that city water content is higher.Formal in consideration layout of freezing pipes, except inside soil body pierces freezing pipe, also need lay freezing comb in the frozen thickness district of refrigeration station offside tunnel duct piece, overcome on the one hand air in tunnel to flow the loss of refrigeration capacity caused, on the other hand in order to make up the cold energy deficiency that freezing pipe end effect causes, avoid tunnel duct piece and the cementing difficulty of the contact soil body.Usually at present, lay circular freezing comb along tunnel duct piece cambered surface, and side bedding warming plate thereon, to reach isolated with tunnel environment, create lower temperature border, reduce the object that inside tunnel duct piece, adjacent soil body cold scatters and disappears along tunnel duct piece.Which presents the effect created cold environment, reduce cold damage between the soil body and tunnel duct piece to a certain extent, but in view of the freezing comb of circle is arranged along tunnel duct piece cambered surface, the two Contact limited area, add that heat-insulation layer not easily covers tightly, make that the cold of freezing comb is many to be lost in tunnel environment by its tube wall and heat-insulation layer, cold energy loss is serious, and is difficult to play the auxiliary object freezed.

Utility model content

For the deficiencies in the prior art, the technical problem that the utility model quasi-solution is determined is, provides a kind of freezing comb with reinforced heat exchanger.

The technical scheme that the utility model solve the technical problem is, provides a kind of freezing comb with reinforced heat exchanger, and the freezing comb described in it is characterized in that with reinforced heat exchanger comprises fin, warming plate, bolt and freezing comb; Described fin has bolt hole and fin insertion groove; The quantity of described bolt equals the columns of freezing comb; The quantity of described bolt hole equals the twice of the columns of freezing comb, for construction bolt; The quantity of described fin insertion groove equals the columns of freezing comb, and the distance between two adjacent fin insertion grooves is that the distance between adjacent two row in freezing comb adds that the girth of single-row freezing comb cross section adds the summation of 10-30cm; Fin insertion groove is used for other end one end of fin being inserted fin, forms the wing shape structure that two ends intersect; In the middle of the fin of described formation wing shape structure, the freezing comb of parcel is single-row, and two ends are launched along tunnel duct piece direction, contact, thus the part cold of freezing comb is passed to tunnel duct piece by fin with tunnel duct piece; Described bolt is installed in bolt hole; Described warming plate is laid on freezing comb and fin.

Compared with prior art, the utility model beneficial effect is: outside freezing comb, increase fin, increases the contact area between freezing comb and tunnel duct piece, improves the utilization ratio of input cold.The utility model structure is simple, and easy to operate, heat transfer effect is obvious.The utility model solves the situation that in freezing soil implementation process, part cold runs off, and cold resource is fully used, effectively forms frost wall, enhance the stability freezing stratum, position, shorten the duration.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram that the utility model has a kind of embodiment of freezing comb of reinforced heat exchanger;

Fig. 2 is the fin expansion schematic diagram that the utility model has a kind of embodiment of freezing comb of reinforced heat exchanger; (in figure 1, fin; 2, warming plate; 3, bolt; 4, freezing comb; 5, tunnel duct piece; 11, bolt hole; 12, fin insertion groove)

Detailed description of the invention

Carry out clear, complete description by the technical scheme in the utility model embodiment below, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.

The utility model provides a kind of freezing comb (see Fig. 1-2) with reinforced heat exchanger, comprises fin 1, warming plate 2, bolt 3 and freezing comb 4; Described fin 1 has bolt hole 11 and fin insertion groove 12; The quantity of described bolt 3 equals the columns of freezing comb 4; Described fin 1 is rectangle, and the pipe range of width and freezing comb 4 matches; The quantity of described bolt hole 11 equals the twice of the columns of freezing comb 4, for construction bolt 3; The quantity of described fin insertion groove 12 equals the columns of freezing comb 4, and the distance between two adjacent fin insertion grooves 12 is that the distance between adjacent two row in freezing comb 4 adds that the girth of single-row freezing comb cross section adds the summation of 10-30cm; Fin insertion groove 12, for one end of fin being inserted the other end of fin, forms the wing shape structure that two ends intersect; In the middle of the fin 1 of described formation wing shape structure, the freezing comb 4 of parcel is single-row, and two ends are launched along tunnel duct piece 5 direction, contact, thus the part cold of freezing comb 4 is passed to tunnel duct piece 5 by fin 1, improve the utilization ratio of cold with tunnel duct piece 5; Described bolt 3 is installed in bolt hole 11, forming the fin 1 of wing shape structure and the exposure level of tunnel duct piece 5, making the closely connected as far as possible tunnel duct piece 5 of fin 1, enlarge active surface for controlling, the input of strengthening cold; Described warming plate 2 is laid on freezing comb 4 with on fin 1, scatters and disappears for reducing cold.

Described fin is aluminum fin-stock.

The utility model is not addressed part and is applicable to prior art.

Claims

1. have a freezing comb for reinforced heat exchanger, the freezing comb described in it is characterized in that with reinforced heat exchanger comprises fin, warming plate, bolt and freezing comb; Described fin has bolt hole and fin insertion groove; The quantity of described bolt equals the columns of freezing comb; The quantity of described bolt hole equals the twice of the columns of freezing comb, for construction bolt; The quantity of described fin insertion groove equals the columns of freezing comb, and the distance between two adjacent fin insertion grooves is that the distance between adjacent two row in freezing comb adds that the girth of single-row freezing comb cross section adds the summation of 10-30cm; Fin insertion groove is used for other end one end of fin being inserted fin, forms the wing shape structure that two ends intersect; In the middle of the fin of described formation wing shape structure, the freezing comb of parcel is single-row, and two ends are launched along tunnel duct piece direction, contact, thus the part cold of freezing comb is passed to tunnel duct piece by fin with tunnel duct piece; Described bolt is installed in bolt hole; Described warming plate is laid on freezing comb and fin.

2. the freezing comb with reinforced heat exchanger according to claim 1, is characterized in that described fin is aluminum fin-stock.

3. the freezing comb with reinforced heat exchanger according to claim 1, it is characterized in that described fin is rectangle, width equals the pipe range of freezing comb.