CN112546820A - Unpowered zero-gas-consumption compression heat drying device and method for regeneration system - Google Patents
Unpowered zero-gas-consumption compression heat drying device and method for regeneration system Download PDFInfo
- Publication number
- CN112546820A CN112546820A CN202011261352.4A CN202011261352A CN112546820A CN 112546820 A CN112546820 A CN 112546820A CN 202011261352 A CN202011261352 A CN 202011261352A CN 112546820 A CN112546820 A CN 112546820A
- Authority
- CN
- China
- Prior art keywords
- valve
- drying tower
- communicated
- drying
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims abstract description 258
- 230000008929 regeneration Effects 0.000 title claims abstract description 46
- 238000011069 regeneration method Methods 0.000 title claims abstract description 46
- 230000006835 compression Effects 0.000 title claims abstract description 26
- 238000007906 compression Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 34
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000002918 waste heat Substances 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 72
- 238000001179 sorption measurement Methods 0.000 claims description 37
- 238000007664 blowing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000011899 heat drying method Methods 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000003795 desorption Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Gases (AREA)
Abstract
The invention provides a regeneration system unpowered zero-gas-consumption compression heat drying device, which solves the problems of large dew point drift amount and long drift time when the conventional drying device is switched from a waste heat stage to a blowing-cooling stage. The device comprises a dryer, an upper pipe system, a lower pipe system and a pressure release valve, wherein one path of an air inlet pipe passes through a second valve and a heater and is communicated with a connecting pipe between valves A2 and B2; the other path of the air inlet pipe is communicated with connecting pipes between the valves A3 and B3 through a fourth valve after passing through the first valve, the other path of the air inlet pipe is communicated with connecting pipes between the valves A4 and B4 after passing through the first cooler and the separator, and the connecting pipes between the valves A2 and B2 are communicated with the connecting pipes between the valves A3 and B3 through a third valve; a connecting pipe between the valves A1 and B1 is communicated with an air outlet pipe through a second cooler and a filter, and a connecting pipe between the valves A1 and B1 is communicated with connecting pipes between the valves A2 and B2 through a seventh valve; one end of the pressure relief valve is communicated with a connecting pipe between the valves A3 and B3, and the other end of the pressure relief valve is communicated with the outside atmosphere.
Description
Technical Field
The invention belongs to a gas drying technology, and particularly relates to a regeneration system unpowered zero-gas-consumption compression heat drying device and method.
Background
According to the development trend of compressors, a centrifugal air compressor and an oil-free screw air compressor become the mainstream of an air compression station, and for the characteristics of no oil and high exhaust temperature of the compressor, the most energy-saving dryer is a compression heat dryer, the dryer utilizes high-temperature gas discharged by the compressor as regeneration energy, the energy consumed by the conventional dryer for regenerating an adsorbent in an electric heating mode is greatly reduced, and therefore the compression heat regeneration dryer becomes the mainstream and energy-saving adsorption dryer.
Chinese patent publication No. CN109731444A discloses a technical solution entitled a regeneration system unpowered zero gas consumption compression heat drying process and apparatus, which is shown in fig. 1, and the apparatus of the present invention includes a dryer composed of a drying tower a and a drying tower B, a first connecting pipe 11, a second connecting pipe 12, a third connecting pipe 13, a fourth connecting pipe 14, a fifth connecting pipe 15 and a sixth connecting pipe 16, wherein upper and lower ports of the dryer are respectively communicated with an upper pipe system and a lower pipe system, the upper pipe system is composed of parallel valves a1 and B1 and parallel valves a2 and B2, and the lower pipe system is composed of parallel valves A3 and B3 and parallel valves a4 and B4; one end of the first connecting pipe 11 is communicated with the connecting pipe between the valves A2 and B2, the other end is communicated with the air inlet pipe 1, and the first connecting pipe 11 is provided with a second valve F2 and a heater 3; one end of the second connecting pipe 12 is communicated with the connecting pipe between the valves A1 and B1, the other end is communicated with the air outlet pipe 2, and the second connecting pipe 12 is provided with a second cooler 6 and a filter 7; one end of a third connecting pipe 13 is communicated with the air inlet pipe 1, the other end of the third connecting pipe is respectively connected with one end of a fourth connecting pipe 14 and one end of a fifth connecting pipe 15, and a first valve F1 is arranged on the third connecting pipe 13; the other end of the fourth connecting pipe 14 is communicated with a connecting pipe between the valves A4 and B4, and the fourth connecting pipe 14 is sequentially provided with a first cooler 4 and a separator 5; the other end of the fifth connecting pipe 15 is communicated with the connecting pipe between the valves A3 and B3, and a fourth valve F4 is arranged on the fifth connecting pipe 15; one end of the sixth connection pipe 16 is connected to the connection pipe between the valves A3 and B3, and the other end is connected to the connection pipe between the valves a2 and B2, and the sixth connection pipe 16 is provided with a third valve F3. The system has the disadvantages that when the waste heat stage is switched to the blowing cooling stage in the drying process, because the waste heat is high-temperature wet air discharged by a compressor, the water content of the waste heat is high, although the adsorbent is well regenerated, a large amount of water vapor contained in the regenerated gas is remained in a regeneration tower, and the moisture directly enters the rear system along with the main airflow after the direct switching, so that the problems of high dew point drift amount and long drift time are caused.
Disclosure of Invention
The invention provides a regeneration system unpowered zero-gas-consumption compression heat drying device and method, and aims to solve the technical problems of large dew point drift amount and long drift time when the conventional drying device is switched from a waste heat stage to a blowing-cooling stage.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a regeneration system unpowered zero-gas-consumption compression heat drying device comprises a dryer, an upper pipe system and a lower pipe system, wherein the dryer is composed of a drying tower A and a drying tower B, the upper pipe system is communicated with an upper port of the dryer, and the lower pipe system is communicated with a lower port of the dryer; the upper pipe system is formed by connecting valves A1 and B1 in parallel and valves A2 and B2 in parallel, and the lower pipe system is formed by connecting valves A3 and B3 in parallel and valves A4 and B4 in parallel;
one path of the air inlet pipe is communicated with a connecting pipe between the valve A2 and the valve B2 after passing through the second valve and the heater;
the other path of the air inlet pipe is divided into two paths after passing through the first valve, wherein one path of the air inlet pipe is communicated with a connecting pipe between a valve A3 and a valve B3 after passing through the fourth valve, and the other path of the air inlet pipe is communicated with a connecting pipe between a valve A4 and a valve B4 after passing through the first cooler and the separator;
the connecting pipe between the valve A2 and the valve B2 is communicated with the connecting pipe between the valve A3 and the valve B3 through a third valve;
the connecting pipe between the valve A1 and the valve B1 is communicated with the air outlet pipe through a second cooler and a filter;
it is characterized in that:
the device also comprises a seventh valve and one or two pressure relief valves; each pressure relief valve comprises an eighth valve and a ninth valve;
one end of the seventh valve is communicated with a connecting pipe between the valve A1 and the valve B1, and the other end of the seventh valve is communicated with a connecting pipe between the valve A2 and the valve B2;
when the pressure relief valve is one, one end of the eighth valve and one end of the ninth valve are both communicated with a connecting pipe between the valve A3 and the valve B3, and the other ends of the eighth valve and the ninth valve are both communicated with the outside atmosphere;
when the number of the pressure relief valves is two, one end of an eighth valve and one end of a ninth valve of one pressure relief valve are both communicated with the lower port of the drying tower A, and the other ends of the eighth valve and the ninth valve are both communicated with the outside atmosphere; and one end of an eighth valve and one end of a ninth valve of the other pressure release valve are both communicated with the lower port of the drying tower B, and the other ends of the eighth valve and the ninth valve are both communicated with the external atmosphere.
Further, a tenth valve is also included;
one end of the tenth valve is communicated with the connection pipe between the valve a1 and the valve B1, and the other end thereof is communicated with the connection pipe between the valve a2 and the valve B2.
Further, a fifth valve and/or a sixth valve are/is further included;
one end of the fifth valve is communicated with the inlet of the heater, and the other end of the fifth valve is communicated with the outlet of the heater;
and one end of the sixth valve is communicated with the inlet of the second cooler, and the other end of the sixth valve is communicated with the outlet of the second cooler.
Further, the fifth valve, the sixth valve, the ninth valve and the tenth valve have the same structure;
the seventh valve and the eighth valve have the same structure.
Further, the diameter of the tenth valve is smaller than that of the fifth valve by one specification.
Meanwhile, the invention provides a regeneration system unpowered zero-gas-consumption compression heat drying method, which comprises a drying tower A regeneration process, a drying tower B adsorption process, a drying tower A adsorption process and a drying tower B regeneration process, wherein the drying tower A adsorption process and the drying tower B regeneration process are the same as the drying tower A regeneration process and the drying tower B adsorption process; the method is characterized in that the regeneration process of the drying tower A and the adsorption process of the drying tower B comprise the following steps:
1) regenerating waste heat of drying tower A and adsorbing by drying tower B
High-temperature compressed gas discharged by a compressor enters a drying tower A, the drying tower A is heated and analyzed for the first time, the analyzed gas is cooled by a first cooler, liquid water is separated by a separator, low-temperature saturated air enters a drying tower B for adsorption, and dried gas generated after adsorption is output by a second cooler and a post-filter;
2) the drying tower A is electrically heated for regeneration and the drying tower B is used for adsorption
Continuously adsorbing by a drying tower B; the high-temperature compressed air discharged by the compressor reaches the set time for the waste heat regeneration of the drying tower A, and the heater is started;
3) decompression in drying tower A and adsorption in drying tower B
Continuously adsorbing by a drying tower B; when the outlet of the drying tower A reaches the set temperature, the heater stops working; opening an eighth valve to release the pressure of the drying tower A;
4) replacement in drying tower A and adsorption in drying tower B
Continuously adsorbing by a drying tower B; after the pressure relief of the drying tower A is finished, the eighth valve is closed, the ninth valve is opened, one part of the dry gas output by the drying tower B is output through the second cooler and the post filter, the other part of the dry gas replaces the drying tower A, and the replaced gas is discharged through the ninth valve;
5) drying tower A for pressure equalization and drying tower B for adsorption
Continuously adsorbing by a drying tower B; closing the ninth valve, outputting one part of the dry gas output by the drying tower B through the second cooler and the post filter, and allowing the other part of the dry gas to enter the drying tower A to carry out pressure equalization on the drying tower A;
6) drying tower A and tower blowing cooling, and drying tower B adsorbing
Continuously adsorbing by a drying tower B; when the pressure of the drying tower A rises to be equal to that of the tower B, the drying gas output by the drying tower B enters the drying tower A, and the drying tower A is cooled by blowing; the cooled gas is output through a second cooler and a post-filter;
alternatively, the first and second electrodes may be,
6) and (3) cooling by blowing in a drying tower A and a drying tower B, and adsorbing by: continuously adsorbing by a drying tower B; when the pressure of the drying tower A rises to be equal to that of the drying tower B, the tenth valve is opened, one part of the drying gas output by the drying tower B is output through the tenth valve, the second cooler and the post filter, and the other part of the drying gas enters the drying tower A and blows cold to the drying tower A; the cooled gas is output through a second cooler and a post-filter;
or 6) drying tower A and blowing for cooling, and adsorbing by drying tower B as follows: continuously adsorbing by a drying tower B; when the pressure of the drying tower A rises to be equal to that of the drying tower B, the tenth valve is opened, one part of the drying gas output by the drying tower B is output through the tenth valve, the second cooler and the post filter, and the other part of the drying gas enters the drying tower A and blows cold to the drying tower A; the cooled gas is output through a second cooler and a post-filter; then, when the drying tower A is cooled by blowing, the tenth valve is closed, and the dry gas output by the drying tower B enters the drying tower A to cool the drying tower A by blowing; and the cooled gas is output through a second cooler and a post-filter.
Further, a sixth valve is connected in parallel to the second cooler.
Further, in the step 2), the set time is 0.5-2.5 hours;
in the step 3), the set temperature is 120-150 ℃;
in the step 6), the set time is 0.5-1 hour.
Compared with the prior art, the invention has the advantages that:
1. the seventh valve, the eighth valve and the ninth valve are arranged on the drying device, so that moisture in the regeneration tower can be replaced by dry gas after waste heat is finished, and dew point drift after the tower is cut is reduced.
2. The drying device is provided with the tenth valve, so that the combined tower cooling function can be added in the original cooling blowing stage, namely, part of finished product gas is directly output, and part of finished product gas enters the regeneration tower for cooling blowing, so that the emission of dew points in the cooling blowing process is reduced.
3. The fifth valve arranged on the drying device can reduce the resistance generated by passing through the heater in the waste heat stage.
4. The sixth valve arranged on the drying device can reduce the resistance generated by the heat exchanger when the finished gas does not need to be cooled.
Drawings
FIG. 1 is a schematic structural diagram of a conventional drying apparatus;
FIG. 2 is a schematic structural diagram of a first embodiment of the unpowered zero-gas-consumption compression heat drying device of the regeneration system of the present invention;
FIG. 3 is a schematic structural diagram of a fourth embodiment of the unpowered zero-gas-consumption compression heat drying device of the regeneration system of the present invention;
FIG. 4 is a schematic structural diagram of a fifth embodiment of the unpowered zero-gas-consumption compression heat drying device of the regeneration system of the present invention;
FIG. 5 is a schematic structural diagram of a sixth embodiment of the unpowered zero-gas-consumption compression heat drying device of the regeneration system of the present invention;
FIG. 6 is a schematic structural diagram of a seventh embodiment of the unpowered zero-gas-consumption compression heat drying device of the regeneration system of the present invention;
wherein the reference numbers are as follows:
1-an air inlet pipe and 2-an air outlet pipe; 11-a first connecting pipe, 12-a second connecting pipe, 13-a third connecting pipe, 14-a fourth connecting pipe, 15-a fifth connecting pipe, 16-a sixth connecting pipe; f1-first valve, F2-second valve, F3-third valve, F4-fourth valve; 3-heater, 4-first cooler, 5-separator, 6-second cooler, 7-filter;
17-seventh connecting pipe, 18-eighth connecting pipe, 19-ninth connecting pipe, 20-tenth connecting pipe, 21-eleventh connecting pipe, 22-twelfth connecting pipe, F5-fifth valve, F6-sixth valve, F7-seventh valve, F8-eighth valve, F9-ninth valve, and F10-tenth valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example one
As shown in fig. 2, an unpowered zero-gas-consumption compression heat drying device for a regeneration system comprises a dryer, a first connecting pipe 11, a second connecting pipe 12, a third connecting pipe 13, a fourth connecting pipe 14, a fifth connecting pipe 15 and a sixth connecting pipe 16, wherein the dryer is composed of a drying tower a and a drying tower B, the upper port and the lower port of the dryer are respectively communicated with an upper pipe system and a lower pipe system, the upper pipe system is composed of parallel valves a1 and B1 and parallel valves a2 and B2, and the lower pipe system is composed of parallel valves A3 and B3 and parallel valves a4 and B4; one end of the first connecting pipe 11 is communicated with the connecting pipe between the valves A2 and B2, the other end is communicated with the air inlet pipe 1, and the first connecting pipe 11 is provided with a second valve F2 and a heater 3; one end of the second connecting pipe 12 is communicated with the connecting pipe between the valves A1 and B1, the other end is communicated with the air outlet pipe 2, and the second connecting pipe 12 is provided with a second cooler 6 and a filter 7; one end of a third connecting pipe 13 is communicated with the air inlet pipe 1, the other end of the third connecting pipe is respectively connected with one end of a fourth connecting pipe 14 and one end of a fifth connecting pipe 15, and a first valve F1 is arranged on the third connecting pipe 13; the other end of the fourth connecting pipe 14 is communicated with a connecting pipe between the valves A4 and B4, and the fourth connecting pipe 14 is sequentially provided with a first cooler 4 and a separator 5; the other end of the fifth connecting pipe 15 is communicated with the connecting pipe between the valves A3 and B3, and a fourth valve F4 is arranged on the fifth connecting pipe 15; one end of the sixth connecting pipe 16 is communicated with the connecting pipe between the valves A3 and B3, and the other end is communicated with the connecting pipe between the valves a2 and B2, and the sixth connecting pipe 16 is provided with a third valve F3; the first connecting pipe 11 is provided with a heater 3, and the second connecting pipe 12 is provided with a filter 7 between the second cooler 6 and the air outlet pipe 2.
The device of the embodiment is additionally provided with a seventh connecting pipe 17, an eighth connecting pipe 18, a ninth connecting pipe 19, a tenth connecting pipe 20, an eleventh connecting pipe 21, a twelfth connecting pipe 22, a fifth valve F5, a sixth valve F6, a seventh valve F7, a tenth valve F10 and 1 pressure relief valve on the basis of the existing drying device, wherein the pressure relief valves comprise an eighth valve F8 and a ninth valve F9;
one end of a seventh connection pipe 17 is communicated with the connection pipe between a1 and B1, and the other end thereof is communicated with the connection pipe between a2 and B2, and the seventh valve F7 is provided on the seventh connection pipe 17; one end of the eighth connection pipe 18 is communicated with the connection pipe between a3 and B3, and the other end thereof is communicated with an eighth valve F8; one end of a ninth connection pipe 19 is communicated with the connection pipe between a3 and B3, and the other end thereof is communicated with a ninth valve F9; one end of a tenth connection pipe 20 is communicated with the connection pipe between a1 and B1, and the other end thereof is communicated with the connection pipe between a2 and B2, the tenth valve F10 being provided on the tenth connection pipe 20; one end of the eleventh connection pipe 21 is communicated with the inlet of the heater 3, and the other end thereof is communicated with the outlet of the heater 3, and the fifth valve F5 is provided on the eleventh connection pipe 21; one end of the twelfth connecting pipe 22 is communicated with the inlet of the second cooler 6, the other end of the twelfth connecting pipe is communicated with the outlet of the second cooler 6, the sixth valve F6 is arranged on the twelfth connecting pipe 22, the sixth valve F6 is connected in parallel to the second cooler 6, and the valve F6 is opened when pure electric heating is not required, so that the system resistance is reduced.
The fifth valve F5, the sixth valve F6, the ninth valve F9 and the tenth valve F10 have the same structure, and the specification of the tenth valve F10 is smaller than that of the fifth valve F5, the sixth valve F6 and the ninth valve F9 by one specification, wherein the specification refers to the valve caliber; the seventh valve F7 and the eighth valve F8 have the same structure and are valves with the same specification.
The workflow of this embodiment is described as follows:
as shown in fig. 2, when the drying tower a is regenerated, the drying tower B performs an adsorption process, which is specifically divided into the following seven sections:
1) regenerating waste heat of drying tower A and adsorbing by drying tower B
In the stage, a second valve F2, a fifth valve F5, a valve A2, a valve A3, a fourth valve F4, a valve B4, a valve B1 and a sixth valve F6 are opened to carry out waste heat regeneration on the drying tower A;
high-temperature compressed gas discharged by a compressor enters a drying tower A through a second valve F2, a fifth valve F5 and a valve A2 in sequence, the gas is uniformly diffused among adsorption beds through a pipeline type diffuser at the end of the drying tower A, the bed layer is heated and analyzed at a sub-high temperature (120-160 ℃) by fully utilizing the compression heat carried by the compressed air, the analyzed gas is cooled through the valve A3, the fourth valve F4 and the first cooler 4, liquid water is separated out through the separator 5, low-temperature saturated air enters a drying tower B through a valve B4 for adsorption, and the gas after adsorption and drying is discharged through the valve B1, the sixth valve F6 and the post-filter 7 and reaches a subsequent system;
2) the drying tower A is electrically heated for regeneration and the drying tower B is used for adsorption
After the high-temperature compressed air discharged by the compressor heats the drying tower A for about two hours, the fifth valve F5 is closed, the heater 3 is started, the high-temperature compressed air directly enters the heater 3, the heater 3 is started to heat to 180-200 ℃, and the drying tower A is continuously heated for deep analysis for the second time. Meanwhile, after the desorption gas is cooled by the valve A3, the fourth valve F4 and the first cooler 4 and separated by the separator 5 (after the regeneration hot gas is cooled and separated), the desorption gas enters the drying tower B through the valve B4, the dried gas is discharged by the valve B1, the sixth valve F6 and the post-filter 7 and reaches a subsequent system, and the heating time of the drying tower A is related to the desorption degree of the drying tower A;
3) decompression in drying tower A and adsorption in drying tower B
When the outlet of the drying tower A reaches the set temperature, the set temperature at the outlet is 120-150 ℃, the heater 3 stops working, the first valve F1 is opened, the second valve F2 and the fourth valve F4 are closed, and the eighth valve F8 is opened to release the pressure of the drying tower A; after passing through a first valve F1, high-temperature compressed air is cooled by a first cooler 4, separated by a separator 5 and enters a drying tower B through a valve B4, and dried air is discharged through a valve B1, a sixth valve F6 and a post-filter 7 and reaches a subsequent system;
4) replacement in drying tower A and adsorption in drying tower B
After the pressure relief of the drying tower A is finished, closing an eighth valve F8, opening a ninth valve F9 and a seventh valve F7, cooling high-temperature compressed air by a first cooler 4 after the high-temperature compressed air passes through the first valve F1 and is separated by a separator 5, allowing the high-temperature compressed air to enter a drying tower B through a valve B4, allowing part of the dry air output by the drying tower B to pass through a valve B1, outputting the part of the dry air through a sixth valve F6 and a post-filter 7, allowing the other part of the dry air to pass through a seventh valve F7 and a valve A2, replacing the drying tower A, and discharging the replaced air through a valve A3 and the ninth valve F9;
5) drying tower A for pressure equalization and drying tower B for adsorption
Valve F9 was closed when the dry column a displacement was complete. After being cooled by a first valve F1 and a first cooler 4 and separated by a separator 5, high-temperature compressed air enters a drying tower B through a valve B4, part of the gas output by the drying tower B is output through a sixth valve F6 and a post-filter 7 after passing through a valve B1, and the other part of the gas enters a drying tower A through a seventh valve F7 and a valve A2 to equalize the pressure of the drying tower A;
6) drying tower A and tower blowing cooling, and drying tower B adsorbing
When the pressure of the drying tower A reaches a set value, namely the pressure of the drying tower A is increased to be equal to the pressure of the drying tower B, the seventh valve F7, the valve B1 and the valve A2 are closed, the valve B2, the tenth valve F10, the third valve F3 and the valve A1 are opened, high-temperature compressed air is cooled through the first valve F1 and the first cooler 4 and separated through the separator 5 and then enters the drying tower B through the valve B4, part of the dry gas output by the drying tower B passes through the valve B2 and then is output through the tenth valve F10, the second cooler 6 and the post filter 7, and the other part of the dry gas passes through the third valve F3 and the valve A3 and enters the drying tower A to blow cold to the drying tower A; the cooled gas is output through a valve A1, a second cooler 6 and a post filter 7;
when the drying tower A carries out adsorption, the drying tower B carries out a regeneration process, and when the drying tower A carries out regeneration, the drying tower B carries out the same process flow as the adsorption process, and only the corresponding valves are different.
Example two
The difference from the first embodiment is that: when the drying tower A is regenerated, the drying tower B carries out the adsorption process, step 6) the drying tower A is cooled by blowing in parallel, and the drying tower B carries out adsorption
When the pressure of the drying tower A reaches a set value, namely the pressure of the drying tower A is increased to be equal to the pressure of the drying tower B, the seventh valve F7, the valve B1 and the valve A2 are closed, the valve B2, the third valve F3 and the valve A1 are opened, high-temperature compressed air enters the drying tower B through the valve B4 after being cooled by the first valve F1 and the first cooler 4 and separated by the separator 5, and dry gas output by the drying tower B enters the drying tower A through the valve B2, the third valve F3 and the valve A3 to blow cold to the drying tower A; the cooled gas is output through a valve A1, a second cooler 6 and a post filter 7;
EXAMPLE III
The difference from the first embodiment is that: when the drying tower A is regenerated, the drying tower B carries out the adsorption process, step 6) the drying tower A is cooled by blowing in parallel, and the drying tower B carries out adsorption
When the pressure of the drying tower A reaches a set value, namely the pressure of the drying tower A is increased to be equal to the pressure of the drying tower B, the seventh valve F7, the valve B1 and the valve A2 are closed, the valve B2, the tenth valve F10, the third valve F3 and the valve A1 are opened, high-temperature compressed air is cooled through the first valve F1 and the first cooler 4 and separated through the separator 5 and then enters the drying tower B through the valve B4, part of the dry gas output by the drying tower B passes through the valve B2 and then is output through the tenth valve F10, the second cooler 6 and the post filter 7, and the other part of the dry gas passes through the third valve F3 and the valve A3 and enters the drying tower A to blow cold to the drying tower A; the cooled gas is output through a valve A1, a second cooler 6 and a post filter 7;
and also comprises the step 7) of blowing cold in the drying tower A and adsorbing in the drying tower B
And after the tower is cooled by blowing for a set time (0.5-1 hour), closing a tenth valve F10, cooling high-temperature compressed air by a first valve F1 and a first cooler 4, separating by a separator 5, then feeding the high-temperature compressed air into a drying tower B by a valve B4, feeding all dried gas dried by the drying tower B into a drying tower A by a valve B2, a third valve F3 and a valve A3, continuously cooling the drying tower A by blowing, and discharging the cooled gas to a subsequent system by a valve A1, a second cooler 6 and a post-filter 7 until the cooling by blowing is finished.
Example four
The difference from the first, second and third embodiments is that: the number of the two pressure relief valves is two, the two pressure relief valves are respectively communicated with the lower port of the drying tower A and the lower port of the drying tower B, as shown in FIG. 3, an eighth valve F8 and a ninth valve F9 of one of the pressure relief valves are communicated with the lower port of the drying tower A, and the pressure relief valves are used for performing pressure relief and replacement on the drying tower A; and an eighth valve F8 and a ninth valve F9 of the other pressure relief valve are communicated with the lower port of the drying tower B and are used for relieving pressure and replacing the drying tower B.
EXAMPLE five
The difference from the first, second and third embodiments is that: as shown in fig. 4, the fifth valve F5 and related piping are eliminated, which reduces the cost; accordingly, the fifth valve F5 is opened in the operation flow, and the high-temperature compressed gas discharged from the compressor passes through the heater 3 instead, but the heater is not operated.
EXAMPLE six
The difference from the first, second and third embodiments is that: as shown in fig. 5, the sixth valve F6 and the related piping are removed, and the dry gas output from the drying tower B is output through the second cooler 6.
EXAMPLE seven
The difference from the first, second and third embodiments is that: as shown in fig. 6, the fifth valve F5 and related piping are eliminated, which reduces the cost; accordingly, the fifth valve F5 is opened in the work flow, and the high-temperature compressed gas discharged by the compressor passes through the heater 3 instead, but the heater does not work;
and the sixth valve F6 and related pipelines are removed, and the dry gas output by the drying tower B is output through the second cooler 6.
Example eight
The difference from the first embodiment is that: in step 2), after the high-temperature compressed air discharged from the compressor heats the drying tower a for about 1 to 1.5 hours, the fifth valve F5 is closed, and the heater 3 is turned on.
The above description is only for the purpose of describing the preferred embodiments of the present invention and does not limit the technical solutions of the present invention, and any known modifications made by those skilled in the art based on the main technical concepts of the present invention fall within the technical scope of the present invention.
Claims (8)
1. A regeneration system unpowered zero-gas-consumption compression heat drying device comprises a dryer, an upper pipe system and a lower pipe system, wherein the dryer is composed of a drying tower A and a drying tower B, the upper pipe system is communicated with an upper port of the dryer, and the lower pipe system is communicated with a lower port of the dryer; the upper pipe system is formed by connecting valves A1 and B1 in parallel and valves A2 and B2 in parallel, and the lower pipe system is formed by connecting valves A3 and B3 in parallel and valves A4 and B4 in parallel;
one path of the air inlet pipe (1) is communicated with a connecting pipe between a valve A2 and a valve B2 after passing through a second valve (F2) and a heater (3);
the other path of the air inlet pipe (1) is divided into two paths after passing through a first valve (F1), wherein one path is communicated with a connecting pipe between a valve A3 and a valve B3 after passing through a fourth valve (F4), and the other path is communicated with a connecting pipe between a valve A4 and a valve B4 after passing through a first cooler (4) and a separator (5);
the connecting pipe between the valve A2 and the valve B2 is communicated with the connecting pipe between the valve A3 and the valve B3 through a third valve (F3);
a connecting pipe between the valve A1 and the valve B1 is communicated with the air outlet pipe (2) through a second cooler (6) and a filter (7);
the method is characterized in that:
further comprising a seventh valve (F7) and one or two pressure relief valves; each pressure relief valve comprises an eighth valve (F8) and a ninth valve (F9);
one end of the seventh valve (F7) is communicated with the connecting pipe between the valve a1 and the valve B1, and the other end thereof is communicated with the connecting pipe between the valve a2 and the valve B2;
when the pressure relief valve is one, one end of the eighth valve (F8) and one end of the ninth valve (F9) are both communicated with a connecting pipe between the valve A3 and the valve B3, and the other ends of the eighth valve and the ninth valve are both communicated with the outside atmosphere;
when the number of the pressure relief valves is two, one end of an eighth valve (F8) and one end of a ninth valve (F9) of one pressure relief valve are both communicated with the lower port of the drying tower A, and the other ends of the eighth valve and the ninth valve are both communicated with the outside atmosphere; one end of an eighth valve (F8) and one end of a ninth valve (F9) of the other pressure release valve are both communicated with the lower port of the drying tower B, and the other ends of the eighth valve and the ninth valve are both communicated with the outside atmosphere.
2. The regeneration system unpowered zero gas consumption compression heat drying device of claim 1, characterized in that: a tenth valve (F10);
one end of the tenth valve (F10) is communicated with the connection pipe between the valve a1 and the valve B1, and the other end thereof is communicated with the connection pipe between the valve a2 and the valve B2.
3. The regeneration system unpowered zero gas consumption compression heat drying device of claim 2, characterized in that: further comprising a fifth valve (F5) and/or a sixth valve (F6);
one end of the fifth valve (F5) is communicated with the inlet of the heater (3), and the other end of the fifth valve is communicated with the outlet of the heater (3);
one end of the sixth valve (F6) is communicated with the inlet of the second cooler (6), and the other end of the sixth valve is communicated with the outlet of the second cooler (6).
4. The regeneration system unpowered zero gas consumption compression heat drying device of claim 3, characterized in that: the fifth valve (F5), the sixth valve (F6), the ninth valve (F9) and the tenth valve (F10) are identical in structure;
the seventh valve (F7) and the eighth valve (F8) are identical in structure.
5. The regeneration system unpowered zero gas consumption compression heat drying device of claim 4, characterized in that: the aperture of the tenth valve (F10) is one specification smaller than that of the fifth valve (F5).
6. A regeneration system unpowered zero-gas-consumption compression heat drying method comprises a drying tower A regeneration process, a drying tower B adsorption process, a drying tower A adsorption process and a drying tower B regeneration process, wherein the drying tower A adsorption process and the drying tower B regeneration process are the same as the drying tower A regeneration process and the drying tower B adsorption process; the method is characterized in that the regeneration process of the drying tower A and the adsorption process of the drying tower B comprise the following steps:
1) regenerating waste heat of drying tower A and adsorbing by drying tower B
High-temperature compressed gas discharged by a compressor enters a drying tower A, the drying tower A is heated and analyzed for the first time, the analyzed gas is cooled by a first cooler (4), liquid water is separated by a separator (5), low-temperature saturated air enters a drying tower B for adsorption, and the dried gas generated after adsorption is output by a second cooler (6) and a post-filter (7);
2) the drying tower A is electrically heated for regeneration and the drying tower B is used for adsorption
Continuously adsorbing by a drying tower B; the high-temperature compressed air discharged by the compressor reaches the set time for the waste heat regeneration of the drying tower A, and the heater (3) is started;
3) decompression in drying tower A and adsorption in drying tower B
Continuously adsorbing by a drying tower B; when the outlet of the drying tower A reaches the set temperature, the heater (3) stops working; opening an eighth valve (F8) to depressurize the drying tower A;
4) replacement in drying tower A and adsorption in drying tower B
Continuously adsorbing by a drying tower B; after the pressure relief of the drying tower A is finished, closing an eighth valve (F8), opening a ninth valve (F9), outputting one part of drying gas output by the drying tower B through a second cooler (6) and a post-filter (7), replacing the drying tower A by the other part of drying gas, and discharging the replacement gas through a ninth valve (F9);
5) drying tower A for pressure equalization and drying tower B for adsorption
Continuously adsorbing by a drying tower B; closing the ninth valve (F9), outputting one part of the dry gas output by the drying tower B through a second cooler (6) and a post filter (7), and feeding the other part of the dry gas into the drying tower A to equalize the pressure of the drying tower A;
6) drying tower A and tower blowing cooling, and drying tower B adsorbing
Continuously adsorbing by a drying tower B; when the pressure of the drying tower A rises to be equal to that of the tower B, the drying gas output by the drying tower B enters the drying tower A, and the drying tower A is cooled by blowing; the cooled gas is output through a second cooler (6) and a post filter (7);
alternatively, the first and second electrodes may be,
continuously adsorbing by a drying tower B; when the pressure of the drying tower A is increased to be equal to that of the drying tower B, a tenth valve (F10) is opened, part of the drying gas output by the drying tower B is output through the tenth valve (F10), a second cooler (6) and a post filter (7), and the other part of the drying gas enters the drying tower A and blows cold to the drying tower A; the cooled gas is output through a second cooler (6) and a post filter (7);
alternatively, the first and second electrodes may be,
continuously adsorbing by a drying tower B; when the pressure of the drying tower A is increased to be equal to that of the drying tower B, a tenth valve (F10) is opened, part of the drying gas output by the drying tower B is output through the tenth valve (F10), a second cooler (6) and a post filter (7), and the other part of the drying gas enters the drying tower A and blows cold to the drying tower A; the cooled gas is output through a second cooler (6) and a post filter (7); then, when the drying tower A reaches the set time of tower cold blowing, closing a tenth valve (F10), and allowing the drying gas output by the drying tower B to enter the drying tower A to blow cold to the drying tower A; the cooled gas is output through a second cooler (6) and a post filter (7).
7. The unpowered zero-gas-consumption compression heat drying method for the regeneration system according to claim 6, characterized by comprising the following steps of: a sixth valve (F6) is connected in parallel to the second cooler (6).
8. The unpowered zero-gas-consumption compression heat drying method for the regeneration system according to claim 6, characterized by comprising the following steps of: in the step 2), the set time is 0.5-2.5 hours;
in the step 3), the set temperature is 120-150 ℃;
in the step 6), the set time is 0.5-1 hour.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961928 | 2019-11-13 | ||
| CN2019219619280 | 2019-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112546820A true CN112546820A (en) | 2021-03-26 |
Family
ID=75041979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011261352.4A Pending CN112546820A (en) | 2019-11-13 | 2020-11-12 | Unpowered zero-gas-consumption compression heat drying device and method for regeneration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112546820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115709971A (en) * | 2023-01-09 | 2023-02-24 | 长春绿动氢能科技有限公司 | Hydrogen purification system and control method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6375722B1 (en) * | 2000-08-22 | 2002-04-23 | Henderson Engineering Co., Inc. | Heat of compression dryer |
| CN101732953A (en) * | 2009-12-28 | 2010-06-16 | 杭州博大净化设备有限公司 | Energy-saving compressed air drying method and device special for compression heat regenerative pipelines |
| CN202724980U (en) * | 2012-07-26 | 2013-02-13 | 杭州日盛净化设备有限公司 | Compression heat regeneration compressed air cleaner |
| CN202724981U (en) * | 2012-07-26 | 2013-02-13 | 杭州日盛净化设备有限公司 | Zero gas consumption compression heat regeneration adsorption type dryer |
| CN204107289U (en) * | 2014-06-05 | 2015-01-21 | 广东省肇庆化工机械厂 | Waste-heat regenerative dryer is blown in the air cooling of a kind of nothing discharge finished product |
| CN204575583U (en) * | 2015-05-22 | 2015-08-19 | 武汉钢铁(集团)公司 | A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device |
| CN205199265U (en) * | 2015-11-26 | 2016-05-04 | 杭州山立净化设备股份有限公司 | Zero gas consumption compression heat regeneration adsorption dryer of compact |
| CN105682776A (en) * | 2013-06-05 | 2016-06-15 | 英格索尔-兰德公司 | Heat of compression dryer system |
| CN206950937U (en) * | 2017-06-14 | 2018-02-02 | 西安联合超滤净化设备有限公司 | The gas consumption absorbed type drying device of the heat of compression zero |
| CN107899379A (en) * | 2017-11-09 | 2018-04-13 | 无锡联合超滤净化设备科技有限公司 | The method of work of the preposition zero-emission external heat drying device of jet pump |
| CN108126481A (en) * | 2017-11-09 | 2018-06-08 | 无锡联合超滤净化设备科技有限公司 | The method of work of external heat surface cooler drying device |
| CN109731444A (en) * | 2019-01-22 | 2019-05-10 | 无锡联合超滤净化设备科技有限公司 | A kind of regenerative system is unpowered zero gas consumption compression Technology of Thermal Drying and device |
-
2020
- 2020-11-12 CN CN202011261352.4A patent/CN112546820A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6375722B1 (en) * | 2000-08-22 | 2002-04-23 | Henderson Engineering Co., Inc. | Heat of compression dryer |
| CN101732953A (en) * | 2009-12-28 | 2010-06-16 | 杭州博大净化设备有限公司 | Energy-saving compressed air drying method and device special for compression heat regenerative pipelines |
| CN202724980U (en) * | 2012-07-26 | 2013-02-13 | 杭州日盛净化设备有限公司 | Compression heat regeneration compressed air cleaner |
| CN202724981U (en) * | 2012-07-26 | 2013-02-13 | 杭州日盛净化设备有限公司 | Zero gas consumption compression heat regeneration adsorption type dryer |
| CN105682776A (en) * | 2013-06-05 | 2016-06-15 | 英格索尔-兰德公司 | Heat of compression dryer system |
| CN204107289U (en) * | 2014-06-05 | 2015-01-21 | 广东省肇庆化工机械厂 | Waste-heat regenerative dryer is blown in the air cooling of a kind of nothing discharge finished product |
| CN204575583U (en) * | 2015-05-22 | 2015-08-19 | 武汉钢铁(集团)公司 | A kind of test decarburization annealing furnace furnace atmosphere dew-point detecting device |
| CN205199265U (en) * | 2015-11-26 | 2016-05-04 | 杭州山立净化设备股份有限公司 | Zero gas consumption compression heat regeneration adsorption dryer of compact |
| CN206950937U (en) * | 2017-06-14 | 2018-02-02 | 西安联合超滤净化设备有限公司 | The gas consumption absorbed type drying device of the heat of compression zero |
| CN107899379A (en) * | 2017-11-09 | 2018-04-13 | 无锡联合超滤净化设备科技有限公司 | The method of work of the preposition zero-emission external heat drying device of jet pump |
| CN108126481A (en) * | 2017-11-09 | 2018-06-08 | 无锡联合超滤净化设备科技有限公司 | The method of work of external heat surface cooler drying device |
| CN109731444A (en) * | 2019-01-22 | 2019-05-10 | 无锡联合超滤净化设备科技有限公司 | A kind of regenerative system is unpowered zero gas consumption compression Technology of Thermal Drying and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115709971A (en) * | 2023-01-09 | 2023-02-24 | 长春绿动氢能科技有限公司 | Hydrogen purification system and control method |
| CN115709971B (en) * | 2023-01-09 | 2023-04-28 | 长春绿动氢能科技有限公司 | Hydrogen purification system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101003B (en) | Process and device for drying adsorption type compressed gas regenerated by using compression heat | |
| CN101920154B (en) | Gas drying process and device | |
| CN101899341A (en) | Adsorption type high pressure natural gas dehydration process and device | |
| CN108889089B (en) | Compressed air drying and purifying process and device | |
| CN101940867B (en) | Zero gas consumption low dew-point waste heat regenerative absorbent type dryer | |
| CN107088347A (en) | Pressure swing regeneration absorption type compressed air drying technique and device | |
| CN112546820A (en) | Unpowered zero-gas-consumption compression heat drying device and method for regeneration system | |
| CN107899379A (en) | The method of work of the preposition zero-emission external heat drying device of jet pump | |
| CN102451601B (en) | Novel afterheat regeneration drier | |
| CN108097003A (en) | Isobaric variable temperature regeneration absorption type compressed air drying technique | |
| CN219482158U (en) | Isobaric regeneration dryer | |
| CN202724981U (en) | Zero gas consumption compression heat regeneration adsorption type dryer | |
| CN110893309A (en) | Compression heat drying device and process suitable for large flow and low inlet air temperature | |
| CN210021661U (en) | Unpowered zero-gas-consumption compression heat drying device of regeneration system | |
| CN102451602B (en) | Zero gas consumption waste heat regeneration and drying method | |
| CN201930694U (en) | Adsorption compressed gas drying device using compression heat regeneration | |
| CN201404762Y (en) | Adsorption high-pressure natural gas dehydration unit | |
| CN201768479U (en) | Zero-air rate low-dew point waste heat recyclable adsorption type drier | |
| CN209271132U (en) | Adsorption air drying device | |
| CN208553669U (en) | A kind of drying system for compressed gas | |
| CN104208988B (en) | The compressed air drier that a kind of window filters | |
| CN108114582A (en) | Equipressure regeneration zero-emission adsorption compressed gas drying device and its method of work | |
| KR101559019B1 (en) | Air dryer apparatus using heat of compression | |
| CN201493043U (en) | Compression heat regeneration adsorption compressed air dryer with zero air consumption and low dew point | |
| CN105251321A (en) | Dehydration method of coalbed methane and dehydration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |