CN206739760U

CN206739760U - A kind of ancient method rice paper drying plant

Info

Publication number: CN206739760U
Application number: CN201720380608.0U
Authority: CN
Inventors: 谭智凯; 文麒筌; 闫红杰
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2017-04-12
Filing date: 2017-04-12
Publication date: 2017-12-12
Anticipated expiration: 2027-04-12

Abstract

The utility model discloses a kind of ancient method rice paper drying plant, including substrate and heat transfer plate, the substrate and heat transfer plate be arranged in parallel, and formed with Zigzag type dual channel between the substrate and heat transfer plate, the fluid flow direction in the Zigzag type dual channel is opposite.The utility model is simple in construction, low manufacture cost, easy to maintain, using Zigzag type dual channel countercurrent flow structure, is advantageous to shorten the time needed for drying unit heating, improves the temperature homogeneity of working face.

Description

A kind of ancient method rice paper drying plant

Technical field

The utility model belongs to drying equipment technical field, more particularly to a kind of ancient method rice paper drying plant.

Background technology

After ancient method rice paper production process need to process raw material meticulously, it is placed on rice paper drying plant and carries out low temperature drying, make String is passivated, and paper exquisiteness is flexible, its quality except with raw material and technique mutually outside the Pass, also with drying plant hot-face temperature Height and uniformity are closely related.

The conventional method for maintaining hot-face temperature is to use high-temperature flue gas heating, drying equipment caused by native stove burning fuel, if The flue gas in standby exit still has a higher temperature, and efficiency of energy utilization is low；The specific heat capacity of flue gas is small, causes firing equipment working face (rice paper contact surface) non-uniform temperature, regulation is difficult, and then has a strong impact on the quality of rice paper；Flue gas also have flue dust and NOx, The pollutants such as SO2, easily cause the pollution to environment；When flue-gas temperature is higher, or leaks, holds fire hazardous, deposit Hot water is used as heat transferring medium in the rice paper drying plant of potential safety hazard, therefore mechanization.

But it is a cavity configuration inside the ancient method rice paper drying plant designed at present, middle part has obvious whirlpool, working face Excessive temperature differentials so that the too fast drying in rice paper subregion and turn to be yellow, so as to influence the quality of rice paper and production capacity.Therefore, based on stream The basic thought of mechanics and thermal conduction study, using the uniformity for improving working face Temperature Distribution as target, rice paper drying plant is entered Row design, so as to improve the production capacity of rice paper and quality.

Utility model content

The purpose of this utility model is to provide a kind of ancient method rice paper drying simple in construction, working face uniformity of temperature profile Equipment.

In order to solve the above technical problems, ancient method rice paper drying plant provided by the utility model, including substrate and heat transfer Plate, the substrate and heat transfer plate be arranged in parallel, formed with Zigzag type dual channel, the Zigzag type between the substrate and heat transfer plate Fluid flow direction in dual channel is opposite.

Further, the corner of the Zigzag type dual channel is provided with steam vent.

Good effect of the present utility model：

1st, the dual channel Zigzag type countercurrent flow structure used, the cross section of runner are rectangle, simple in construction, cost of manufacture Bottom, it is easy to maintain.

2nd, the specific heat capacity of hot water is larger, is advantageous to shorten the time needed for drying unit heating, improves the temperature of working face Uniformity.

3rd, hot water uses electrically heated mode, and security performance is more preferable, and temperature adjustment is flexible, and working environment is good.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is top view of the present utility model；

Fig. 3 is heat transfer plate working face temperature profile (numerical simulation) of the present utility model；

Wherein：1- heat transfer plates；2- substrates；3- Zigzag type dual channels；4- dividing plates.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

As depicted in figs. 1 and 2, ancient method rice paper drying plant provided by the utility model, including substrate 2 and heat transfer plate 1, The substrate 2 and heat transfer plate 1 be arranged in parallel, and the heating work face of ancient method rice paper, the base is are placed in the upper surface of heat transfer plate 1 By welding Zigzag type dual channel 3 of some dividing plates 4 formed with rectangular cross-section, each runner list between plate 2 and heat transfer plate 1 Only external water pipe and control valve, the hot water flux in two runners is in opposite direction, and hot water is heated using electrically heated mode；One The import of runner is adjacent with the outlet of another runner, and the flow direction of any dividing plate both sides is opposite, promotes two effluents Body realizes certain heat exchange, reduces the temperature difference of fluid between runner, so as to improve the temperature homogeneity of working face in runner Corner steam vent is set, ensure that device starts and during operation, smoothly discharge the gas in runner, hot water can be full of groove Road space, heat transfer plate 1 is uniformly heated, can be with the Drying Rates of flexible modulation rice paper by adjusting the temperature or flow of hot water.

As shown in figure 3, heat transferring medium upper right side and lower left from figure flow into simultaneously, it is corresponding from lower left and upper right side Outflow, inlet water temperature are still 80 DEG C, and by the structure design of Zigzag type dual channel 3, heat-transfer surface maximum temperature difference drops to 19.6 DEG C, Temperature homogeneity improves, therefore two passage interlaced arrangements, effectively solves traditional drying plant heat-transfer surface non-uniform temperature The problem of.

Claims

1. a kind of ancient method rice paper drying plant, including substrate (2) and heat transfer plate (1), it is characterised in that：The substrate (2) and biography Hot plate (1) be arranged in parallel, by welding some dividing plates (4) formed with rectangular cross-section between the substrate (2) and heat transfer plate (1) Zigzag type dual channel (3), the independent external water pipe of each runner and control valve, the fluid in the Zigzag type dual channel (3) Flow direction is on the contrary, the fluid is hot water.

2. ancient method rice paper drying plant according to claim 1, it is characterised in that：Zigzag type dual channel (3) are turned Steam vent is provided with angle.