CN213578425U - Negative pressure drying equipment - Google Patents
Negative pressure drying equipment Download PDFInfo
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- CN213578425U CN213578425U CN202022437450.0U CN202022437450U CN213578425U CN 213578425 U CN213578425 U CN 213578425U CN 202022437450 U CN202022437450 U CN 202022437450U CN 213578425 U CN213578425 U CN 213578425U
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Abstract
The utility model discloses a negative pressure drying device, relating to the drying related field; the equipment comprises a negative pressure drying chamber for drying the material body; a condenser and a condensing fan are sequentially arranged in the negative pressure drying chamber, two ends of the condenser are respectively connected with a water inlet pipe and a water outlet pipe, a compressor is arranged on the water inlet pipe, and the water outlet pipe is connected with a liquid recovery assembly; an air inlet of the negative pressure drying chamber is connected with an air inlet pipe provided with a first pipeline type air valve, an air outlet is connected with an air outlet pipe which is sequentially provided with a vortex fan and a second pipeline type air valve along the air flowing direction, and the end part of the air outlet pipe is connected with the liquid recovery assembly; the utility model discloses on original drying facility's basis, through the effect of a pipeline formula blast gate, vortex fan and No. two pipeline formula blast gates, with forming the negative pressure in the negative pressure drying chamber, utilize the dry principle of negative pressure for accelerating the dehumidification process and improve holistic drying efficiency.
Description
Technical Field
The utility model relates to a dry relevant field, specifically a negative pressure drying equipment.
Background
The drying is an essential processing procedure in the processing process of a plurality of industrial production and agricultural and sideline products, the material drying is high-energy consumption operation, all energy sources account for about 12 percent of the total energy consumption of national economy, and the market capacity is huge. Tradition is dried and is set up drying efficiency lower, so the utility model discloses under the condition of original drying facility, utilize the dry principle of negative pressure to improve holistic drying efficiency for accelerating dehumidification process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a negative pressure drying equipment to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a negative pressure drying device comprises a negative pressure drying chamber for drying a material body; a condenser and a condensing fan are sequentially arranged in the negative pressure drying chamber, two ends of the condenser are respectively connected with a water inlet pipe and a water outlet pipe, a compressor is arranged on the water inlet pipe, and the water outlet pipe is connected with a liquid recovery assembly; the air inlet of the negative pressure drying chamber is connected with an air inlet pipe provided with a first pipeline type air valve, the air outlet is connected with an air outlet pipe provided with a vortex fan and a second pipeline type air valve in sequence along the gas flowing direction, and the end part of the air outlet pipe is connected with the liquid recovery assembly.
As a further aspect of the present invention: the liquid recovery assembly comprises an electronic expansion valve and a sleeve exchanger, the sleeve exchanger is respectively connected with the air outlet pipe and the water outlet pipe, and the electronic expansion valve is installed on the water outlet pipe.
As a further aspect of the present invention: and the air outlet of the sleeve exchanger is connected with an exhaust pipe.
As a further aspect of the present invention: and a condensed water outlet of the sleeve exchanger is connected with a condensed water outlet pipe.
As a further aspect of the present invention: the casing exchanger is also connected with an evaporator provided with an evaporation fan through a water inlet pipe, and the evaporator is connected with a compressor.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses on original drying facility's basis, through the effect of a pipeline formula blast gate, vortex fan and No. two pipeline formula blast gates, with forming the negative pressure in the negative pressure drying chamber, utilize the dry principle of negative pressure for accelerating the dehumidification process and improve holistic drying efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Notations for reference numerals: the device comprises a condensation fan 1, a condenser 2, a water outlet pipe 3, a water inlet pipe 4, a condensation water outlet pipe 5, an exhaust pipe 6, a sleeve exchanger 7, an evaporation fan 8, an evaporator 9, a second pipeline type air valve 10, a vortex fan 11, a compressor 12, an air inlet pipe 13, a first pipeline type air valve 14, a negative pressure drying chamber 15, a material body 16, an electronic expansion valve 17 and an air outlet pipe 18.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a negative pressure drying apparatus includes a negative pressure drying chamber 15 for drying a material body 16; a condenser 2 and a condensing fan 1 are sequentially arranged in the negative pressure drying chamber 15, two ends of the condenser 2 are respectively connected with a water inlet pipe 4 and a water outlet pipe 3, a compressor 12 is arranged on the water inlet pipe 4, and the water outlet pipe 3 is connected with a liquid recovery assembly; the air inlet of the negative pressure drying chamber 15 is connected with an air inlet pipe 13 provided with a first pipeline type air valve 14, the air outlet is connected with an air outlet pipe 18 which is sequentially provided with a vortex fan 11 and a second pipeline type air valve 10 along the air flowing direction, and the end part of the air outlet pipe 18 is connected with a liquid recovery assembly.
In this embodiment, the liquid recovery assembly includes an electronic expansion valve 17 and a casing exchanger 7, the casing exchanger 7 is connected to the air outlet pipe 18 and the water outlet pipe 3, respectively, and the electronic expansion valve 17 is installed on the water outlet pipe 3.
In this embodiment, the air outlet of the casing exchanger 7 is connected to the exhaust duct 6.
In this embodiment, the condensed water outlet of the double pipe exchanger 7 is connected with the condensed water outlet pipe 5.
In this embodiment, the negative pressure drying is a drying method in which the material is placed under a negative pressure condition, and is properly heated to reach a boiling point in a negative pressure state or is solidified by cooling so as to dry the material through a melting point.
The melting point boiling point of the water in the material is reduced along with the improvement of the vacuum degree in the negative pressure state, and the vacuum pump is used for gap dehumidification to reduce the water vapor content, so that the water and other solutions in the material can obtain enough kinetic energy to be separated from the surface of the material. Because the air is isolated under the negative pressure state, part of the materials which are easy to oxidize and other chemical changes in the drying process can better keep the original characteristics.
During the drying process, the liquid water is vaporized in two modes of evaporation and boiling.
The water vaporizes at a much faster rate at boiling than it vaporizes at evaporation, and evaporation of water into steam can occur at any temperature. The boiling of water into steam can only be done at a certain temperature, but when the pressure is reduced, the boiling point of water is also reduced.
The vacuum drier provides heat source in vacuum state, and supplies enough water heat to the material through heat conduction, heat radiation and other heat transfer modes, so that evaporation and boiling are carried out simultaneously, and the vaporization speed is increased. Meanwhile, the vaporized steam is quickly pumped out by vacuumizing, a negative pressure state is formed around the material, and a large humidity gradient is formed between the inner layer and the outer layer of the material and between the surface of the material and the surrounding medium, so that the vaporization speed is increased, and the aim of quickly drying is fulfilled.
The utility model discloses a theory of operation: the refrigerant is pressurized by the compressor 12 into high-temperature and high-pressure gas, then enters the condenser 2, the condenser 2 is condensed, liquefied and released heat to form liquid, meanwhile, the condensing fan 1 forms convection to heat the air in the negative pressure drying chamber 15, then the refrigerant enters the casing pipe exchanger 7 through the electronic expansion valve 17, and the high-temperature and high-humidity gas in the negative pressure drying chamber 15 discharged by the vortex fan 11 is subjected to liquid recovery.
At the moment, outdoor air enters the negative pressure drying chamber 15 through the air inlet pipe 13 provided with the first pipeline type air valve 14 to supplement air, formed high-temperature humid air is sent to the sleeve exchanger 7 through the vortex fan 11 and the second pipeline type air valve 10 to be recycled, negative pressure is formed in the negative pressure drying chamber 15, meanwhile, the air is discharged out of the room through the exhaust pipe 6, and liquid is discharged out of the room through the condensation water outlet pipe 5.
Referring to fig. 1, in another embodiment of the present invention, the casing exchanger 7 is further connected to an evaporator 9 with an evaporation fan 8 installed thereon through a water inlet pipe 4, and the evaporator 9 is connected to a compressor 12.
In this embodiment, part of the liquid in the double pipe exchanger 7 can enter the evaporator 9 to absorb heat, the second pipe type damper 10 forms convection to accelerate heat exchange of the evaporator 9, and the heat exchanged liquid is sent to the compressor 12.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A negative pressure drying device comprises a negative pressure drying chamber (15) for drying a material body (16); a condenser (2) and a condensing fan (1) are sequentially arranged in the negative pressure drying chamber (15), two ends of the condenser (2) are respectively connected with a water inlet pipe (4) and a water outlet pipe (3), a compressor (12) is arranged on the water inlet pipe (4), and the water outlet pipe (3) is connected with a liquid recovery assembly; the negative pressure drying device is characterized in that an air inlet of the negative pressure drying chamber (15) is connected with an air inlet pipe (13) provided with a first pipeline type air valve (14), an air outlet is connected with an air outlet pipe (18) which is sequentially provided with a vortex fan (11) and a second pipeline type air valve (10) along the air flowing direction, and the end part of the air outlet pipe (18) is connected with a liquid recovery assembly.
2. The negative pressure drying device according to claim 1, wherein the liquid recovery assembly comprises an electronic expansion valve (17) and a casing exchanger (7), the casing exchanger (7) is connected with the air outlet pipe (18) and the water outlet pipe (3), respectively, and the electronic expansion valve (17) is installed on the water outlet pipe (3).
3. The negative-pressure drying apparatus according to claim 2, wherein the outlet of the casing exchanger (7) is connected to the exhaust duct (6).
4. A negative pressure drying apparatus according to claim 2, characterized in that the condensed water outlet of the casing exchanger (7) is connected with the condensed water outlet pipe (5).
5. A negative pressure drying apparatus according to claim 2, characterized in that the casing exchanger (7) is further connected to an evaporator (9) equipped with an evaporator fan (8) via a water inlet pipe (4), the evaporator (9) being connected to a compressor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437450.0U CN213578425U (en) | 2020-10-28 | 2020-10-28 | Negative pressure drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437450.0U CN213578425U (en) | 2020-10-28 | 2020-10-28 | Negative pressure drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213578425U true CN213578425U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022437450.0U Active CN213578425U (en) | 2020-10-28 | 2020-10-28 | Negative pressure drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213578425U (en) |
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2020
- 2020-10-28 CN CN202022437450.0U patent/CN213578425U/en active Active
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