CN212870505U - Energy-saving dryer - Google Patents

Abstract

The utility model provides an energy-conserving drying-machine, this drying-machine includes main part jar, steam cycle device, main part jar inner chamber is equipped with the material frame that the level was arranged, main part jar inner wall is provided with pipe wall steam conduit along the circumferencial direction equipartition, steam cycle device includes steam cycle pipeline, steam compressor, high temperature tail gas recovery pipe, the export of secondary steam is connected to steam cycle pipeline one end, and the other end is connected into the steam pipe way through steam compressor. The device can heat the secondary steam for recycling through the steam compressor, and the high-temperature steam can circularly flow while exchanging heat with the material, so that the heat exchange efficiency is higher; the air in the inner cavity of the main tank and the secondary steam are sucked by the steam compressor to form negative pressure, so that the temperature difference between the material and the inner cavity is increased, and the drying efficiency is further improved; in addition, this equipment only needs a small amount of outside steam can normal operating stoving work to the high temperature tail gas of secondary steam and distillation water pitcher in the main part jar can utilize once more through vapor compressor recovery intensification, reduces the mummification energy consumption.

Description

Energy-saving dryer

Technical Field

The utility model relates to a drying-machine technical field, especially an energy-conserving drying-machine.

Background

An energy-saving dryer is a device for drying vegetables, medicinal materials, fruits and other materials, and is widely applied to the industries of chemical industry, agriculture, pharmacy and the like. The equipment has simple and reliable structure, simple and convenient operation and higher automation degree, so the equipment is widely commented and generally adopted once being released.

The existing drying machine generally adopts an air-drying type electric energy heating or heat pump type to dry, the heat exchange efficiency of the drying machine is low, the heat utilization rate is low, the heat external discharge capacity is large, the drying machine works under the normal pressure or positive pressure environment, the gas inside the drying machine and the smell of materials are easily leaked, and the energy consumption is high. Therefore, an efficient and energy-saving device is urgently needed in the market to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages of the prior art, the utility model provides an energy-saving dryer.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an energy-conserving drying-machine, includes the main part jar, main part tank deck portion is connected with the admission pipeline, main part tank bottoms portion is equipped with the delivery port, the main part jar inner chamber is equipped with the material frame that the level was arranged, main part jar inner wall is provided with a plurality of groups pipe wall steam conduit along the circumferencial direction equipartition, two sets of pipe wall steam conduit of adjacent each other are parallel and communicate, pipe wall steam conduit one end and admission pipeline intercommunication, the other end and delivery port intercommunication.

As a further improvement of the utility model: the steam generator further comprises a steam generating tank and an external pipeline, wherein the steam generating tank and the external pipeline are connected with the steam inlet pipeline.

As a further improvement of the utility model: still include distilled water pipeline, distilled water pipeline connects the delivery port of main part tank bottoms portion, distilled water pipeline connects gradually distilled water jar, water pump.

As a further improvement of the utility model: still include steam cycle device, steam cycle device includes steam cycle pipeline, vapor compressor, main part tank deck portion is equipped with the secondary steam export, secondary steam export is connected to steam cycle pipeline one end, and the other end is connected the admission pipeline through vapor compressor.

As a further improvement of the utility model: still include high temperature tail gas recovery pipe, high temperature tail gas recovery pipe one end is connected steam cycle pipeline, and the other end is connected the distillation water pitcher.

As a further improvement of the utility model: and the secondary steam outlet is provided with a demisting net.

As a further improvement of the utility model: one end of the main body tank is provided with a movable door, and the movable door is connected with the main body tank in a sealing manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1: compared with the traditional air-drying type electric heating or heat pump type drying, the equipment adopts high-temperature heat exchange, a fan is not needed to blow in the main tank, and the material is prevented from vibrating in a large range.

2: the high-temperature steam hot gas is circulated through the steam compressor, and the high-temperature steam and the material circularly flow while exchanging heat, so that the heat exchange efficiency is higher.

3: the air and the secondary steam in the inner cavity of the main tank are sucked through the steam compressor, so that the inner cavity of the main tank carries out heat exchange drying on the material under the environment of negative pressure, the temperature difference between the material and the inner cavity is improved, and then the drying efficiency is improved.

4: this equipment only needs a small amount of outside steam can normal operating stoving work to the temperature risees in the main part jar, and the material mummification in-process produces the flash steam, and the high temperature tail gas of flash steam and distillation water pitcher is retrieved through vapor compressor and is heaied up and can be recycled, reduces the mummification energy consumption.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal cross-sectional structure of the main body tank.

Fig. 3 is a schematic view of a pipe wall steam pipeline structure.

Detailed Description

The invention will now be further described with reference to the accompanying drawings, in which:

referring to fig. 1 to 3, an energy-saving dryer includes a main tank 32, a steam inlet pipe 71 is connected to the top of the main tank, and a water outlet 35 is disposed at the bottom of the main tank. Main part jar 32 one end is equipped with dodge gate 11, dodge gate 11 is used for feeding, the ejection of compact, dodge gate 11 and main part jar 32 sealing connection.

The inner cavity of the main body tank 32 is provided with a horizontally arranged material rack 12, and the material rack 12 is used for placing materials to be dried. The inner wall of the main body tank 32 is uniformly provided with a plurality of groups of pipe wall steam pipelines 13 along the circumferential direction, the two adjacent groups of pipe wall steam pipelines 13 are parallel and communicated with each other, one end of each pipe wall steam pipeline 13 is communicated with the steam inlet pipeline 71, and the other end of each pipe wall steam pipeline is communicated with the water outlet 35. Specifically, as shown in fig. 3, two ends of the pipe wall steam pipeline 13 are provided with the communicating plate pipes 9, the communicating plate pipes 9 are fixedly connected to the inner wall of the main body tank 32, the single pipe wall steam pipeline 13 is connected in parallel with the communicating plate pipes 9 to form a group of pipe wall steam pipelines 13, and then two adjacent groups of pipe wall steam pipelines 13 are connected in series through the communicating plate pipes 9. This is arranged so that the high temperature steam can flow more quickly in the pipe wall steam pipe 13.

The equipment also comprises a steam generating tank 92 and an external pipeline, wherein the steam generating tank 92 and the external pipeline are connected with the steam inlet pipeline 71. The external pipe is used for connecting external high-temperature steam, and the steam generating tank 92 is used for generating high-temperature steam.

The apparatus further comprises a distilled water conduit 21. The distilled water pipeline 21 is connected with a water outlet 35 at the bottom of the main body tank, and the distilled water pipeline 21 is sequentially connected with a distilled water tank 33 and a water pump 34. The water pump 34 is used to pump the distilled water in the distilled water tank 33 to the outside.

The equipment also comprises a steam circulation device which comprises a steam circulation pipeline 62 and a steam compressor 61. The top of the main tank is provided with a secondary steam outlet 63, one end of the steam circulating pipeline 62 is connected with the secondary steam outlet 63, and the other end of the steam circulating pipeline is connected with a steam inlet pipeline 71 through a steam compressor 61. The steam compressor 61 is used for heating secondary steam generated after the materials are dried by the steam compressor 61 and pumping the secondary steam back to the pipe wall steam pipeline 13; in the process, air and secondary steam in the inner cavity of the main tank are sucked by the steam compressor 61, so that a negative pressure environment is formed in the inner cavity of the main tank. The material is subjected to heat exchange drying in a negative pressure environment, so that the temperature difference between the material and the inner cavity can be improved, and the drying efficiency is improved.

More preferably, the steam cycle device further comprises a high temperature tail gas recovery pipe 14. One end of the high-temperature tail gas recovery pipe 14 is connected with the steam circulation pipeline 62, and the other end is connected with the top of the distilled water tank 33. By the arrangement, the high-temperature tail gas of the distilled water tank 33 can be recycled and heated by the vapor compressor 61, so that the drying energy consumption is reduced; and simultaneously circulating high-temperature steam in the pipe wall steam pipeline 13 and the steam circulation pipeline 62.

More preferably, the secondary steam outlet 63 is provided with a demister 64 for filtering in order to remove impurities in the secondary steam.

One specific application of this embodiment is:

in operation, a user places materials on the material rack 12 in the main tank 32 by opening the movable door 11. The external pipe is connected with external high-temperature steam, or the high-temperature steam generated by the steam generating tank 92 flows into the pipe wall steam pipe 13 on the inner wall of the main body tank 32 through the steam inlet pipe 71, so that the environment in the inner cavity of the main body tank 32 is rapidly heated.

The material is on the material frame 12, because the material temperature is relatively low, the heat of the hot air in the main body tank 32 is continuously transferred to the material, so that the material temperature is raised, the evaporation of the moisture in the material is accelerated, the moisture content of the material is reduced, and the drying and drying effects are achieved.

In the process of drying and drying the materials, high-temperature steam in the pipe wall steam pipeline 13 is subjected to exothermic liquefaction reaction to form distilled water, and the distilled water flows into the distilled water tank 33 through the water outlet 35. The distilled water is pumped to the outside of the equipment under the action of a water pump 34; in addition, in the process of drying and drying the materials, secondary steam is formed due to the evaporation of water in the materials, and the secondary steam flows into the steam compressor 61 through the secondary steam outlet 63 and the steam circulating pipeline 62. The secondary steam rises in temperature under the action of the steam compressor, then flows into the pipe wall steam pipeline 13 and then heats and dries the materials. So set up, not only reach the effect of cyclic recovery utilization, reduction mummification energy consumption, simultaneously because steam compressor 61 makes main part jar inner chamber form the negative pressure environment to main part jar 35 inner chamber suction air and secondary steam, the material carries out the heat transfer mummification under the environment of negative pressure, has improved the difference in temperature of material and inner chamber, improves mummification efficiency then.

In addition, high-temperature tail gas is formed after heat exchange of the high-temperature steam and flows into the distilled water tank 33 through the water outlet 35, and the high-temperature tail gas recovery pipe 14 is communicated with the steam compressor 61 and the distilled water tank 33, so that the high-temperature tail gas is compressed by the steam compressor to be heated and enters the pipe wall steam pipeline 13 again. So set up, high temperature steam is in pipe wall steam conduit 13, steam circulation pipeline 62 interior ceaselessly circulation flow, makes heat exchange efficiency higher.

Compared with the traditional air-drying type electric energy heating or heat pump type drying, the equipment adopts high-temperature heat exchange, and a fan is not needed to blow the main body tank 32, so that the material is prevented from vibrating in a large range; in addition, the drying operation can be normally operated only by a small amount of external steam, the temperature in the main tank rises, secondary steam is generated in the material drying process, the secondary steam and the high-temperature tail gas of the distillation water tank can be recycled through the recovery and heating of the steam compressor, and the drying energy consumption is reduced.

In the description of the present invention, it should be understood that the terms "upper end surface", "lower end surface", "top", "bottom", "left", "right", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and therefore, cannot be understood as a limitation to the practical use direction of the present invention.

In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims (7)

1. The utility model provides an energy-conserving drying-machine, includes the main part jar, main part tank deck portion is connected with the admission pipeline, main part tank bottoms portion is equipped with delivery port, its characterized in that:

the utility model discloses a steam pipeline, including main part jar inner chamber, main part jar inner chamber is equipped with the material frame of horizontal arrangement, main part jar inner wall is provided with a plurality of groups pipe wall steam conduit along the circumferencial direction equipartition, two sets of pipe wall steam conduit that adjacent each other are parallel and communicate, pipe wall steam conduit one end and admission pipeline intercommunication, the other end and delivery port intercommunication.

2. The energy saving dryer of claim 1, wherein: the steam generator further comprises a steam generating tank and an external pipeline, wherein the steam generating tank and the external pipeline are connected with the steam inlet pipeline.

3. The energy saving dryer of claim 1, wherein: still include distilled water pipeline, distilled water pipeline connects the delivery port of main part tank bottoms portion, distilled water pipeline connects gradually distilled water jar, water pump.

4. The energy saving dryer of claim 3, wherein: still include steam cycle device, steam cycle device includes steam cycle pipeline, vapor compressor, main part tank deck portion is equipped with the secondary steam export, secondary steam export is connected to steam cycle pipeline one end, and the other end is connected the admission pipeline through vapor compressor.

5. The energy saving dryer of claim 4, wherein: still include high temperature tail gas recovery pipe, high temperature tail gas recovery pipe one end is connected steam cycle pipeline, and the other end is connected the distillation water pitcher.

6. The energy saving dryer of claim 4, wherein: and the secondary steam outlet is provided with a demisting net.

7. The energy saving dryer of claim 1, wherein: one end of the main body tank is provided with a movable door, and the movable door is connected with the main body tank in a sealing manner.

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