CN209791236U - Condensation heat blast adsorption dryer - Google Patents
Condensation heat blast adsorption dryer Download PDFInfo
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- CN209791236U CN209791236U CN201822029723.0U CN201822029723U CN209791236U CN 209791236 U CN209791236 U CN 209791236U CN 201822029723 U CN201822029723 U CN 201822029723U CN 209791236 U CN209791236 U CN 209791236U
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Abstract
The utility model discloses a condensation heat blast adsorption dryer, which comprises a compression heating system and a drying system; the compression heating system comprises a compressor, a first electromagnetic valve, a heating condenser, a throttle expansion valve, an evaporator, a second electromagnetic valve, a cooling condenser and a cooling blower cooler; the drying system comprises an adsorption air inlet pipe, an air after-cooler, a first pneumatic valve, a first adsorption tower, a first check valve, a second pneumatic valve, a second adsorption tower, a second check valve, a regeneration cold blowing air inlet pipe, an air blower, a third check valve which is connected with the regeneration cold blowing air inlet pipe and arranged on the first adsorption tower, a third pneumatic valve which is connected with the third check valve, a fourth check valve which is connected with the regeneration cold blowing air inlet pipe and arranged on the second adsorption tower, and a fourth pneumatic valve which is connected with the fourth check valve; and adsorbing materials are arranged in the first adsorption tower and the second adsorption tower.
Description
Technical Field
The utility model relates to a drying equipment field especially relates to a condensation heat blast air adsorption dryer.
Background
The existing dryer realizes the reduction function through modes such as electric heating, causes great waste of energy, and can burn out equipment when the temperature is too high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a condensation heat blast air adsorption dryer aims at solving prior art, and the problem that the desiccator power consumption is big.
To achieve the purpose, the utility model adopts the following technical proposal:
The condensation heat blast adsorption dryer comprises a compression heating system and a drying system; the compression heating system comprises a compressor, a first electromagnetic valve connected with the compressor, a heating condenser connected with the first electromagnetic valve, a throttle expansion valve connected with the heating condenser, an evaporator connected with the throttle expansion valve, a second electromagnetic valve connected with the compressor, a cooling condenser connected with the second electromagnetic valve, and a cooling cooler connected with the cooling condenser and the evaporator; the drying system comprises an adsorption air inlet pipe, an air aftercooler connected with the adsorption air inlet pipe and installed outside the evaporator, a first pneumatic valve connected with the air aftercooler, a first adsorption tower connected with the first pneumatic valve, a first check valve arranged on the first adsorption tower, a second pneumatic valve connected with the air aftercooler, a second adsorption tower connected with the second pneumatic valve, a second check valve arranged on the second adsorption tower, a regeneration blowing air inlet pipe in thermal contact with the heating condenser and the blowing cooling cooler, a blower arranged between the regeneration blowing air inlet pipe and the heating condenser and the blowing cooling cooler, a third check valve connected with the regeneration blowing air inlet pipe and arranged on the first adsorption tower, and a third pneumatic valve connected with the third check valve, The fourth check valve is connected with the regeneration cold blowing air inlet pipe and arranged on the second adsorption tower, and the fourth pneumatic valve is connected with the fourth check valve; and adsorbing materials are arranged in the first adsorption tower and the second adsorption tower.
further, a first temperature sensor for monitoring a discharge temperature of the compressor is included.
Further, a second temperature sensor for monitoring the temperature of the intake air of the compressor is included.
Further, a first pressure sensor for monitoring a discharge pressure of the compressor is included.
Further, a second pressure sensor is arranged between the cooling condenser and the cold blowing cooler.
Furthermore, the compression heating system also comprises a liquid injection expansion valve connected with the compressor and a liquid injection electromagnetic valve arranged between the liquid injection expansion valve and the throttle expansion valve.
Furthermore, the compression heating system further comprises a filter arranged between the heating condenser and the throttle expansion valve.
The utility model has the advantages that: the compression heating system carries out drying and adsorption on the humid air in the first adsorption tower and the second adsorption tower through the cold air generated by the evaporator, the heat discharged by the heating condenser can be used for the regeneration action of the adsorption materials in the first adsorption tower and the second adsorption tower, and after regeneration is finished, the dry low-temperature cold air is used for entering the first adsorption tower and the second adsorption tower to blow cold the adsorption materials, so that the adsorption drying capacity of the adsorption materials is improved, the air drying is realized in an external heating mode without electric heating, and the energy is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic diagram of a condensation hot blast adsorption dryer according to an embodiment of the present invention;
FIG. 2 is a flow chart of the working medium refrigerant during heating in the adsorption process of the first adsorption tower in the embodiment of the present invention;
FIG. 3 is a flow chart of adsorption during heating in the adsorption process of the first adsorption tower in the embodiment of the present invention;
FIG. 4 is a flow chart of hot gas regeneration during heating in the adsorption process of the first adsorption tower in the embodiment of the present invention;
FIG. 5 is a flow chart of the working medium refrigerant during the cooling process in the adsorption process of the first adsorption tower in the embodiment of the present invention;
FIG. 6 is a flow chart of cold air blowing during cold blowing in the adsorption process of the first adsorption tower in the embodiment of the present invention;
FIG. 7 is a flow chart of the working medium refrigerant during heating in the adsorption process of the second adsorption tower in the embodiment of the present invention;
FIG. 8 is a flow chart of the adsorption process of the second adsorption tower during heating in the adsorption process of the embodiment of the present invention;
FIG. 9 is a flow chart of hot gas regeneration during heating in the adsorption process of the second adsorption tower in the embodiment of the present invention;
FIG. 10 is a flow chart of the working medium refrigerant during the cooling process in the adsorption process of the second adsorption tower in the embodiment of the present invention;
FIG. 11 is a flow chart of cold air blowing during cold blowing in the adsorption process of the second adsorption tower in the embodiment of the present invention;
in the figure:
300. A compression heating system; 400. a drying system; 1. a compressor; 2. a first solenoid valve; 3. heating the condenser; 4. a throttle expansion valve; 5. an evaporator; 6. a second solenoid valve; 7. cooling the condenser; 8. a blow-cooling cooler; 9. adsorbing an air inlet pipe; 10. an air aftercooler; 11. a first pneumatic valve; 12. a first adsorption tower; 13. a first check valve; 14. a second pneumatic valve; 15. regenerating a blowing-cooling air inlet pipe; 16. a blower; 17. a third check valve; 18. a third pneumatic valve; 19. a fourth check valve; 20. a fourth pneumatic valve; 21. a first temperature sensor; 22. a second temperature sensor; 23. a first pressure sensor; 24. a second pressure sensor; 25. a liquid injection expansion valve; 26. a liquid spraying electromagnetic valve; 27. a filter; 28. a second adsorption column; 29. a second check valve.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
it will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
As shown in fig. 1-11, an embodiment of the present invention provides a condensation hot blast adsorption dryer, which includes a compression heating system 300 and a drying system 400; the compression heating system 300 comprises a compressor 1, a first electromagnetic valve 2 connected with the compressor 1, a heating condenser 3 connected with the first electromagnetic valve 2, a throttle expansion valve 4 connected with the heating condenser 3, an evaporator 5 connected with the throttle expansion valve 4, a second electromagnetic valve 6 connected with the compressor 1, a cooling condenser 7 connected with the second electromagnetic valve 6, and a cold blowing cooler 8 connected with the cooling condenser 7 and the evaporator 5; the drying system 400 includes an adsorption air intake duct 9, an air aftercooler 10 connected to the adsorption air intake duct 9 and installed outside the evaporator 5, a first pneumatic valve 11 connected to the air aftercooler 10, a first adsorption tower 12 connected to the first pneumatic valve 11, a first check valve 13 provided on the first adsorption tower 12, a second pneumatic valve 14 connected to the air aftercooler 10, a second adsorption tower 28 connected to the second pneumatic valve 14, a second check valve 29 provided on the second adsorption tower 28, a regenerative cool-blow air intake duct 15 thermally contacting the heating condenser 3 and the cool-blow cooler 8, a blower 16 provided in the regenerative cool-blow air intake duct 15 and located between the heating condenser 3 and the cool-blow cooler 8, a third check valve 17 connected to the regenerative cool-blow air intake duct 15 and provided on the first adsorption tower 12, a third pneumatic valve 18 connected to the third check valve 17, a fourth check valve 19 connected to the regenerative cool-blow air intake duct 15 and provided on the second adsorption tower 28, a fourth check valve 19 provided on the second adsorption tower 28, and a third check valve 29, And a fourth pneumatic valve 20 connected to the fourth check valve 19; the first adsorption tower 12 and the second adsorption tower 28 are provided with an adsorbent (which may be alumina).
The embodiment of the utility model provides an in, the cold air that compression heating system 300 produced through evaporimeter 5 carries out dry adsorption to the humid air in first adsorption tower 12 and the second adsorption tower 28, the heat that heating condenser 3 discharged can be used to the regeneration action of the adsorption material in first adsorption tower 12 and the second adsorption tower 28, end and utilize dry low temperature cold air entering first adsorption tower 12 and second adsorption tower 28 to blow cold to adsorption material after the regeneration, with the dry ability of absorption that promotes adsorption material, the drying of air is realized to the external heating mode that need not electric heating, the energy has been practiced thrift.
The adsorption process of the first adsorption tower 12 is as follows:
Flow of working medium refrigerant during heating (as shown in figure 2): compressor 1-first solenoid valve 2-heating condenser 3-filter 27-throttle expansion valve 4-evaporator 5-compressor 1.
adsorption flow during heating (as shown in fig. 3): inlet-air aftercooler 10-first pneumatic valve 11-first check valve 13-outlet.
Hot gas regeneration flow during heating (as shown in fig. 4): heating condenser 3-blower 16-forced air cooler 8-fourth check valve 19-fourth pneumatic valve 20.
working medium refrigerant flow during cold blowing (as shown in figure 5): compressor 1-second solenoid valve 6-cooling condenser 7-blow-cooling cooler 8-evaporator 5-compressor 1.
Cold air blowing flow in the cold blowing process (as shown in figure 6): heating condenser 3-blower 16-forced air cooler 8-fourth check valve 19-fourth pneumatic valve 20.
The adsorption flow of the second adsorption column 28 is as follows:
flow of working medium refrigerant during heating (as shown in fig. 7): compressor 1-first solenoid valve 2-heating condenser 3-filter 27-throttle expansion valve 4-evaporator 5-compressor 1.
adsorption flow during heating (as shown in fig. 8): inlet-air aftercooler 10-second pneumatic valve 14-second check valve 29-outlet.
Hot gas regeneration flow during heating (as shown in fig. 9): heating condenser 3-blower 16-cold blow cooler 8-third check valve 17-third pneumatic valve 18.
Working medium refrigerant flow during cold blowing (as shown in figure 10): compressor 1-second solenoid valve 6-cooling condenser 7-blow-cooling cooler 8-evaporator 5-compressor 1.
Cold air blowing flow in the cold blowing process (as shown in fig. 11): heating condenser 3-blower 16-cold blow cooler 8-third check valve 17-third pneumatic valve 18.
The working principle of the condensation heat blast adsorption dryer is as follows: according to the reverse Carnot cycle principle (the principle of a compressor 1 refrigerator), a working medium refrigerant is circulated in a closed system through a working medium refrigerant compressor 1, when the working medium refrigerant circulates to an evaporator 5, the heat of compressed air entering a first adsorption tower 12 or a second adsorption tower 28 is absorbed, the enthalpy of the working medium refrigerant after absorbing the heat is increased to reach a saturated state, after the compression, the pressure of the refrigerant is increased, the temperature of the refrigerant is also increased, the refrigerant is discharged out of the compressor 1 under the action of the pressure and enters a heating condenser 3, and the heat in a cooling blower 8 is absorbed by air flow of an air blower 16 (the heat becomes compression heat, also called condensation heat). The temperature of the normal temperature air at the inlet of the blower 16 passing through the condenser is about 80-90 ℃, the temperature of the outlet of the three-stage blower 16 is raised by 30 ℃, and finally the temperature of the air entering the first adsorption tower 12 or the second adsorption tower 28 reaches 110-120 ℃. After regeneration is finished, cold blowing is needed, and the system enters a regeneration tower for blowing cold alumina through switching the evaporator 5 and the condenser, wherein the cold air at a low drying temperature.
The following is that the utility model provides a working process of condensation heat blast air adsorption dryer: when the operation is stopped, the first air-operated valve 11 is in an open state, and the second air-operated valve 14, the third air-operated valve 18, and the fourth air-operated valve 20 are all in a closed state; and starting the operation, continuing to close the third pneumatic valve 18 and the fourth pneumatic valve 20, delaying for 10 seconds to open the first pneumatic valve 11 and the second pneumatic valve 14, and filling the first adsorption tower 12 and the second adsorption tower 28 with gas. After 10 seconds, the second pneumatic valve 14 is closed, the first adsorption tower 12 enters the first-wheel adsorption, the adsorption process is shown in fig. 2-6, compressed air enters through the air after-cooler 10, sequentially passes through the second pneumatic valve, the first adsorption tower 12 and the first check valve 13, and then is discharged; 5 seconds after the second pneumatic valve 14 is closed, the fourth pneumatic valve 20 is opened, and the compressed air of the second adsorption tower 28 is rapidly discharged from the fourth pneumatic valve 20 and the muffler. When the adsorption heating is started, the blower 16 is started, the compressor 1 is started after the delay of 30 seconds, hot air enters the heating condenser 3 from the air filtering structure, is sucked into the three sections of the blower 16, is pressurized and then is discharged, enters the blow-cooling cooler 8 through a connecting pipe or a bypass, enters the fourth check valve 19, enters the second adsorption tower 28, is heated and dries the adsorption material (alumina) in the second adsorption tower 28, and is discharged through the fourth pneumatic valve 20 and the silencer. The process is repeated until the set time or the set temperature meets the regeneration requirement of a preset value, the control system (which can be a PLC) outputs an instruction, the switching heating is cooling, the cold air flow is unchanged, the working medium refrigerant flow is switched by the first electromagnetic valve 2 and the second electromagnetic valve 6 (the previous state is that the first electromagnetic valve 2 is opened, the second electromagnetic valve 6 is closed), the first electromagnetic valve 2 which is the current state is closed, the second electromagnetic valve 6 is opened, so that the air of the air blower 16 is firstly refrigerated and then enters the second adsorption tower 28 for cooling, and the cooling blowing is finished until the temperature of the adsorption material, namely the alumina, is reduced to 30 ℃. The compressor 1 is stopped and the compressor 1 is stopped with a delay of 120 seconds. The heating process is a great contribution to the prior art of the condensation heat blast adsorption dryer provided by the embodiment of the present invention, the compressor 1 is started, the refrigerant starts to circulate through the operation of the compressor 1, the refrigerant is compressed by the compressor 1 to form high-pressure high-temperature gas, the pressure action is controlled by the first electromagnetic valve 2 to enter the heating condenser 3, the high-temperature refrigerant exchanges heat with the air sucked by the blower 16 in the heating condenser 3, the temperature of the refrigerant decreases and changes into high-pressure low-temperature liquid, the high-pressure low-temperature liquid refrigerant passes through the filter 27 under the pressure action, the liquid high-pressure low-temperature refrigerant is throttled by the throttle expansion valve 4 and then is sprayed into the evaporator 5, the refrigerant enters the evaporator 5, the temperature drops sharply, the temperature difference with the air aftercooler 10 (arranged outside the evaporator 5) is large, the heat of the compressed air is transferred with the refrigerant heat temperature difference of the evaporator 5, the refrigerant is adsorbed, and entering the next period. The heat of the compressed air entering the air post-cooler 10 is absorbed, the temperature drops, and the condensed water is discharged after precooling.
The utility model provides a heat that condensation hot blast air adsorption dryer produced with compressor 1 of heat one-third equipower is greater than the calorific capacity of the electric heater of equipotent heat power, and the cold volume of production when heating simultaneously is done the air precooling dry, has better energy-conserving effect. And the whole cold energy is recycled for inlet air precooling and drying, so that the cost for purchasing a freezing type dryer is saved, and the cost is saved. The indirect heating mode of condensation heat is adopted, so that equipment cannot be burnt out due to overhigh temperature, and the use safety is ensured. The double-branch system uses dry cold air to blow cold absorption materials, can improve the absorption capacity, has longer switching period and consumes less exhaust gas. The liquid spraying expansion valve 25 and the liquid spraying electromagnetic valve 26 are arranged to prevent the temperature of the compressor 1 from being overhigh.
The embodiment of the utility model provides a condensation heat blast air adsorption dryer: the compressed high-temperature and high-pressure refrigerant in the reverse Carnot cycle process of the working medium refrigerant releases heat in the condensation process, and absorbs heat when being evaporated after being throttled by the throttle expansion valve 4. The embodiment of the utility model provides a problem of current adsorption dryer's high energy consumption has been solved to the condensation heat blast air adsorption dryer. The dryer can completely replace the existing electric heating adsorption dryer, replace the existing blowing adsorption dryer and replace the existing rotating wheel adsorption dryer.
The method comprises the steps of replacing an electric heater with the compression condensation heat of the working medium refrigerant, blowing hot air to regenerate the adsorption material (alumina), and using the compression condensation heat of the working medium refrigerant to regenerate the hot air of other types of adsorbents of the non-first adsorption tower 12 and the second adsorption tower 28. Such as: the adsorption regeneration is performed by adopting a rotary wheel type or other modes. And recovering cold energy to precool and dry the compressed air while utilizing the condensation heat.
Further, please refer to fig. 1, which is a specific embodiment of the adsorption dryer with condensing heat blowing provided by the present invention, further comprising a first temperature sensor 21 for monitoring the exhaust temperature of the compressor 1.
Further, please refer to fig. 1, which is a specific embodiment of the adsorption dryer with condensing heat blowing provided by the present invention, further comprising a second temperature sensor 22 for monitoring the inlet air temperature of the compressor 1.
Further, please refer to fig. 1, which is a specific embodiment of the condensing hot blast adsorption dryer provided by the present invention, further comprising a first pressure sensor 23 for monitoring the exhaust pressure of the compressor 1.
Further, referring to fig. 1, as a specific embodiment of the condensing hot blast adsorption dryer provided by the present invention, a second pressure sensor 24 is disposed between the cooling condenser 7 and the cold blast cooler 8.
Further, referring to fig. 1, as an embodiment of the condensing hot blast adsorption dryer provided by the present invention, the compression heating system 300 further includes a liquid injection expansion valve 25 connected to the compressor 1, and a liquid injection solenoid valve 26 disposed between the liquid injection expansion valve 25 and the throttle expansion valve 4.
Further, referring to fig. 1, as a specific embodiment of the condensing hot blast adsorption dryer provided by the present invention, the compression heating system 300 further includes a filter 27 disposed between the heating condenser 3 and the throttle expansion valve 4.
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The condensation hot blast adsorption dryer is characterized by comprising a compression heating system and a drying system; the compression heating system comprises a compressor, a first electromagnetic valve connected with the compressor, a heating condenser connected with the first electromagnetic valve, a throttle expansion valve connected with the heating condenser, an evaporator connected with the throttle expansion valve, a second electromagnetic valve connected with the compressor, a cooling condenser connected with the second electromagnetic valve, and a cooling cooler connected with the cooling condenser and the evaporator; the drying system comprises an adsorption air inlet pipe, an air aftercooler connected with the adsorption air inlet pipe and installed outside the evaporator, a first pneumatic valve connected with the air aftercooler, a first adsorption tower connected with the first pneumatic valve, a first check valve arranged on the first adsorption tower, a second pneumatic valve connected with the air aftercooler, a second adsorption tower connected with the second pneumatic valve, a second check valve arranged on the second adsorption tower, a regeneration blowing air inlet pipe in thermal contact with the heating condenser and the blowing cooling cooler, a blower arranged between the regeneration blowing air inlet pipe and the heating condenser and the blowing cooling cooler, a third check valve connected with the regeneration blowing air inlet pipe and arranged on the first adsorption tower, and a third pneumatic valve connected with the third check valve, The fourth check valve is connected with the regeneration cold blowing air inlet pipe and arranged on the second adsorption tower, and the fourth pneumatic valve is connected with the fourth check valve; and adsorbing materials are arranged in the first adsorption tower and the second adsorption tower.
2. The condensing hot blast adsorption dryer of claim 1 further comprising a first temperature sensor for monitoring a discharge temperature of said compressor.
3. The condensing hot blast adsorption dryer of claim 1 further comprising a second temperature sensor for monitoring the inlet air temperature of said compressor.
4. the condensing hot blast adsorption dryer of claim 1 further comprising a first pressure sensor for monitoring a discharge pressure of said compressor.
5. A condensing hot blast adsorption dryer as claimed in claim 1 wherein a second pressure sensor is provided between the cooling condenser and the cold blast cooler.
6. The condensing hot-blast adsorption dryer of claim 1, wherein said compression heating system further comprises a liquid injection expansion valve connected to said compressor, and a liquid injection solenoid valve disposed between said liquid injection expansion valve and said throttle expansion valve.
7. The condensing hot blast adsorption dryer of claim 1, wherein said compression heating system further comprises a filter disposed between said heating condenser and said throttle expansion valve.
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| CN201822029723.0U CN209791236U (en) | 2018-12-03 | 2018-12-03 | Condensation heat blast adsorption dryer |
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| CN201822029723.0U CN209791236U (en) | 2018-12-03 | 2018-12-03 | Condensation heat blast adsorption dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364705A (en) * | 2018-12-03 | 2019-02-22 | 深圳市新宏达利能源技术有限公司 | Condense hot blast absorption drier |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364705A (en) * | 2018-12-03 | 2019-02-22 | 深圳市新宏达利能源技术有限公司 | Condense hot blast absorption drier |
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