CN218794985U

CN218794985U - Energy-saving zero-gas-consumption micro-thermal regeneration adsorption type dryer

Info

Publication number: CN218794985U
Application number: CN202120963063.2U
Authority: CN
Inventors: 黄琴琴; 金明敏; 洪川; 宋勇
Original assignee: Hangzhou Shanli Purify Equipment Corp
Current assignee: Hangzhou Shanli Purify Equipment Corp
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2023-04-07
Anticipated expiration: 2031-05-07

Abstract

The utility model provides an energy-saving zero gas consumption little heat regeneration adsorption dryer belongs to desiccator technical field. It has solved the easy problem of damaging of current booster compressor. This energy-saving zero gas consumption little heat regeneration adsorption dryer, including drying tower one, drying tower two, the booster compressor, electric heater, the cooler, the separator, first valve group and second valve group, be connected with dry compressed air outlet channel on the first valve group, be connected with low temperature compressed air inlet channel on the second valve group, electric heater and first valve group connect, the second valve group is connected with the cooler, the cooler is connected with the separator, the separator is connected with low temperature compressed air inlet channel, this dryer is still including the filter that can filter impurity in the dry air, the filter sets up on dry compressed air outlet channel or branch pipe. The problem of the easy damage of booster compressor has been solved to this structure.

Description

Energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer

Technical Field

The utility model belongs to the technical field of the desiccator, especially a little heat regeneration adsorption dryer of energy-saving zero gas consumption.

Background

The principle of the adsorption dryer is that saturated compressed air is filtered by using the difference between the moisture and the molecular volume of air, saturated water vapor in the compressed air is filtered by using a special adsorbent for gas purification, water molecules can be easily adsorbed in adsorbent particles by the adsorbent, and then the adsorbent is reduced by using a regeneration method.

The capacity of air for containing water vapor is inversely proportional to the pressure, a part of the dried air is called regeneration air, and is decompressed and expanded to the atmospheric pressure, the expanded air becomes drier due to the pressure change, then the expanded air flows through a drying tower which is not communicated with an air flow and needs regeneration, namely, the drying tower absorbs enough water vapor, the dried regeneration air absorbs the water in the drying agent and is taken out of the dryer to achieve the purpose of dehumidification, the two towers work circularly, a heat source is not needed, and the dry compressed air is continuously provided for a user air system.

At present, the chinese patent network discloses an energy-saving adsorption dryer with zero gas consumption [ grant publication no: CN206549417U includes drying tower I, drying tower II, booster, electric heater, water cooler, separator, low temperature compressed air inlet is connected between valve K1 and valve K2, dry compressed air outlet is connected between valve K5 and valve K6, dry compressed air outlet has a branch, the branch is connected with booster through regulating valve, booster outlet is connected with electric heater, electric heater outlet is connected between valve K7 and valve K8, valve K3 and valve K4 are both connected with water cooler, water cooler outlet is connected with separator, separator outlet is connected with low temperature compressed air inlet, drier is in the course of working, the first half cycle is drying tower I work, drying tower II regeneration and drying tower I work, drying tower II cold blow, the second half cycle is drying tower II work, drying tower I regeneration and drying tower II work, drying tower I cold blow.

The dryer has the following defects in the working process: low temperature compressed air enters into drying tower one by valve K1 and carries out drying process, the dry gas after the processing is discharged from the export of dry compressed air, dry gas about 20% in the export of dry compressed air enters into electric heater through the booster pressure boost simultaneously, because the drying tower can only absorb steam, can not absorb the impurity that is mingled with at dry gas, dry gas flows through the in-process of booster compressor can lead to impurity can adsorb inside the booster compressor, reduce the performance of booster compressor, still can cause the booster compressor to damage in the past for a long time, the life of booster compressor has been reduced.

Disclosure of Invention

The utility model aims at having above-mentioned problem to current technique, provided an energy-saving zero gas consumption little heat regeneration adsorption dryer, the utility model aims to solve the technical problem that: how to solve the problem that the booster compressor is easy to damage.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides an energy-saving little hot regeneration adsorption dryer of zero gas consumption, includes drying tower one, drying tower two, booster compressor, electric heater, cooler, separator, first valve group and second valve group, be connected with dry compressed air outlet channel on the first valve group, be connected with low temperature compressed air inlet channel on the second valve group, be connected with the branch pipe on the dry compressed air outlet channel, the branch pipe is connected with the booster compressor, the booster compressor is connected with electric heater, electric heater and first valve group link, the second valve group is connected with the cooler, the cooler is connected with the separator, the separator is connected with low temperature compressed air inlet channel, its characterized in that, this drying machine still includes the filter that can filter impurity in the dry air, the filter sets up on dry compressed air outlet channel or branch pipe.

When the filter setting is when doing compressed air outlet channel, the dry gas who comes out from the drying tower is earlier filtered by the filter, most dry gas after the filtration outwards discharges, make the environmental protection more of combustion gas, another part dry gas after the filtration, enter into electric heater through the booster compressor pressure boost, because dry gas has been filtered by the filter, do not contain impurity basically in the dry gas, compared with the prior art, avoid impurity to adsorb in the booster compressor, guarantee that the booster compressor has better performance, make the booster compressor be difficult to damage, the life of extension booster compressor. In a similar way, when the filter sets up on the branch pipe, in the partial dry gas that comes out from drying tower one entered into the branch pipe, the dry gas that enters into the branch pipe was earlier filtered by the filter and then entered into the booster compressor, guarantees that the dry gas that enters into the booster compressor does not contain impurity basically, guarantees that the booster compressor has better performance for the booster compressor is difficult to damage, prolongs the life of booster compressor.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the separator is a gas-liquid separator, and a zero-gas-consumption electronic drainer is connected to the separator. The gas-liquid separator separates air and liquid, the separated liquid is left in the gas-liquid separator, and finally the liquid in the gas-liquid separator is discharged.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the separator is provided with a humidity detector. Through the arrangement of the structure, the humidity detector can detect the humidity of the gas after liquid separation, and further the gas-liquid separation effect can be obtained.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the separator is provided with a first temperature detector. Through the arrangement of the structure, the temperature detector can detect the temperature of the separated gas, and then the cooling effect of the cooler can be obtained.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, a dew-point instrument is connected to an outlet of the dry compressed air outlet channel. Through the setting of this structure, detect exhaust dry gas's humidity through the dew point hygrometer, when the dry gas's that detects out humidity is too big, can prolong the adsorption cycle, further reduce dry gas's humidity for the in-process energy consumption at regeneration adsorbent reduces.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the electric heater and the dry compressed air outlet channel are respectively provided with a second temperature detector. Through the arrangement of the structure, the temperature detector II arranged on the electric heater can monitor the temperature of the electric heater when the electric heater works, and can perform power-off treatment on the electric heater in real time when the temperature of the electric heater is overhigh and abnormal; and the second temperature detector arranged on the dry compressed air outlet channel can detect the temperature of the dry air in the channel.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the first valve group comprises a first valve, a second valve, a third valve and a fourth valve, the first valve is connected with the second valve in series, the third valve is connected with the fourth valve in series, the first valve and the second valve are connected with the third valve and the fourth valve in parallel, the dry compressed air outlet channel is connected between the first valve and the second valve, and the electric heater 4 is connected between the third valve and the fourth valve; the second valve group comprises a valve five, a valve six, a valve seven and a valve eight, the valve five is connected with the valve six in series, the valve seven is connected with the valve eight in series, the valve five, the valve six are connected with the valve seven and the valve eight in parallel, the low-temperature compressed air inlet channel is connected between the valve seven and the valve eight, and the cooler is connected between the valve five and the valve six; the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve and the eighth valve are all pneumatic double-eccentric butterfly valves. Through the arrangement of the structure, all the valves have the advantages of low energy consumption, small torque, small resistance, high temperature resistance and the like in the working process.

In foretell energy-saving zero gas consumption little heat regeneration adsorption dryer, the cooler is the water chiller, have the heat exchange tube in the cooler, the heat exchange tube is the nonrust steel pipe of 316L, the cooler has at least two, and all coolers are parallelly connected to be set up. Through the arrangement of the structure, the cooler has better cooling effect, better corrosion resistance and longer service life; the gas that comes out from the regenerator column is through the cooler cooling, and the vapor liquefaction in the gas forms the water droplet, realizes gas-liquid separation, and this structure adopts the parallelly connected setting of a plurality of coolers, improves the cooling effect to gas, guarantees that gas-liquid separation is abundant.

In the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer, the dryer further comprises a regulating valve, and the regulating valve is arranged between the supercharger and the filter. Through the setting of this structure, the intake flow of the steerable booster compressor of governing valve plays the effect of protection booster compressor.

Compared with the prior art, the utility model discloses a little heat regeneration adsorption dryer of energy-saving zero gas consumption has following advantage:

1. the dry gas entering the supercharger by the structure is filtered by the filter, the dry gas basically does not contain impurities, the impurities are prevented from being adsorbed in the supercharger, the supercharger is ensured to have better service performance, the supercharger is not easy to damage, and the service life of the supercharger is prolonged;

2. the structure is characterized in that the separator is connected with a zero-gas-consumption electronic drainer, so that the gas-liquid separator cannot generate gas leakage in the draining process;

3. this structure detects exhaust dry gas's humidity through the dew point hygrometer, when the dry gas's that detects out humidity is too big, can prolong the adsorption cycle, further reduces dry gas's humidity for the in-process energy consumption at regeneration adsorbent reduces.

Drawings

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

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure, 1, a first drying tower; 2. a second drying tower; 3. a supercharger; 4. an electric heater; 5. a cooler; 6. a separator; 7. a dry compressed air outlet channel; 8. a low temperature compressed air intake passage; 9. a filter; 10. a branch pipe; 11. a zero gas consumption electronic drainer; 12. a humidity detector; 13. a first temperature detector; 14. a dew point meter; 15. a second temperature detector; 17. adjusting a valve; 18. a first valve; 19. a second valve; 20. a third valve; 21. a valve IV; 22. a fifth valve; 23. a sixth valve; 24. a seventh valve; 25. and a valve eighth.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, the energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer comprises a first drying tower 1, a second drying tower 2, a booster 3, an electric heater 4, a cooler 5, a separator 6, a first valve group and a second valve group, wherein a dry compressed air outlet channel 7 is connected to the first valve group, a low-temperature compressed air inlet channel 8 is connected to the second valve group, a branch pipe 10 is connected to the dry compressed air outlet channel 7, the branch pipe 10 is connected to the booster 3, the booster 3 is connected to the electric heater 4, the electric heater 4 is connected to the first valve group, the second valve group is connected to the cooler 5, the cooler 5 is connected to the separator 6, the separator 6 is connected to the low-temperature compressed air inlet channel 8, the dryer further comprises a filter 9 capable of filtering impurities in dry air, and the filter 9 is arranged on the branch pipe 10. In this embodiment, the first valve group includes a first valve 18, a second valve 19, a third valve 20 and a fourth valve 21, the first valve 18 and the second valve 19 are connected in series, the third valve 20 and the fourth valve 21 are connected in series, the first valve 18 and the second valve 19 are connected in parallel with the third valve 20 and the fourth valve 21, the dry compressed air outlet channel 7 is connected between the first valve and the second valve, and the electric heater 4 is connected between the third valve 20 and the fourth valve 21; the second valve group comprises a valve five 22, a valve six 23, a valve seven 24 and a valve eight 25, the valve five 22 is connected with the valve six 23 in series, the valve seven 24 is connected with the valve eight 25 in series, the valve five 22 and the valve six 23 are connected with the valve seven 24 and the valve eight 25 in parallel, the low-temperature compressed air inlet channel 8 is connected between the valve seven 24 and the valve eight 25, and the cooler 5 is connected between the valve five 22 and the valve six 23; the first valve 18, the second valve 19, the third valve 20, the fourth valve 21, the fifth valve 22, the sixth valve 23, the seventh valve 24 and the eighth valve 25 are all pneumatic double-eccentric butterfly valves

The working process is as follows:

the first drying tower 1 works, and the second drying tower 2 regenerates: the low-temperature compressed air enters the drying tower I1 through a valve seventh 24 for drying treatment, and the treated dry gas (dry compressed air) is discharged from the dry compressed air outlet channel 7 through a valve I18. Meanwhile, about 20% of dry gas is taken from a dry compressed air outlet channel 7, pressurized by a supercharger 3, enters an electric heater 4, heated to 180 ℃, enters a drying tower II 2 through a valve IV 21 to heat and regenerate the adsorbent, and enters a water cooler for cooling treatment through a valve VI 23, and then enters a gas-liquid separator to separate liquid water, and then joins with main airflow to go downwards.

The first drying tower 1 works, and the second drying tower 2 performs cold blowing: the low-temperature compressed air enters the drying tower I1 through a valve seventh 24 for drying treatment, and the treated dry gas (dry compressed air) is discharged from the dry compressed air outlet channel 7 through a valve I18. Meanwhile, about 20% of dry gas is taken from a dry compressed air outlet channel 7, pressurized by a supercharger 3, enters an electric heater 4 to be unheated (the electric heater is closed at the moment), directly enters a second drying tower to be cooled and blown by a valve IV 21, enters a water cooler to be cooled by a valve VI 23, then enters a gas-liquid separator to separate liquid water, and then main air flow is converged and flows downwards.

And the next half period is switched to work, the second drying tower works, and the first drying tower regenerates and performs cold blowing.

In the above-mentioned in-process, the part dry gas that comes out from drying tower 1 enters into branch pipe 10 in, and dry gas filters earlier by filter 9 and then enters into booster compressor 3 in entering into branch pipe 10, guarantees that the dry gas who enters into booster compressor 3 does not contain impurity basically, guarantees that booster compressor 3 has better performance for booster compressor 3 is difficult to damage, extension booster compressor 3's life.

As shown in fig. 1, the separator 6 is a gas-liquid separator 6, a zero gas consumption electronic drainer 11 is connected to the separator 6, a humidity detector 12 is arranged on the separator 6, and a first temperature detector 13 is arranged on the separator 6. The outlet of the dry compressed air outlet channel 7 is connected with a dew point instrument 14. And a second temperature detector 15 is arranged on each of the electric heater 4 and the dry compressed air outlet channel 7. The cooler 5 is a water cooler, a heat exchange tube is arranged in the cooler 5 and is a 316L stainless steel tube, at least two coolers 5 are arranged in parallel, and the water cooler is a water cooler; the dryer further comprises a regulating valve 17, the regulating valve 17 being arranged between the supercharger 3 and the filter 9.

Example 2

This embodiment is substantially the same as embodiment 1 described above, except that: as shown in fig. 2, the present embodiment provides a filter 9 on the dry compressed air outlet passage 7. When filter 9 sets up when doing compressed air outlet channel 7, the dry gas who comes out from drying tower 1 filters by filter 9 earlier, most dry gas after the filtration outwards discharges, make the environmental protection more of combustion gas, another part dry gas after the filtration, enter into electric heater 4 through booster compressor 3 pressure boost, because dry gas has been filtered by filter 9, do not basically contain impurity among the dry gas, compared with the prior art, avoid impurity absorption in booster compressor 3, guarantee that booster compressor 3 has better performance, make booster compressor 3 be difficult to damage, prolong booster compressor 3's life.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an energy-saving little heat regeneration adsorption dryer of zero gas consumption, includes drying tower (1), drying tower two (2), booster compressor (3), electric heater (4), cooler (5), separator (6), first valve group and second valve group, be connected with dry compressed air outlet channel (7) on the first valve group, be connected with low temperature compressed air inlet channel (8) on the second valve group, be connected with branch pipe (10) on dry compressed air outlet channel (7), branch pipe (10) are connected with booster compressor (3), booster compressor (3) are connected with electric heater (4), electric heater (4) and first valve group are connected, the second valve group is connected with cooler (5), cooler (5) are connected with separator (6), separator (6) are connected with low temperature compressed air outlet channel (8), its characterized in that, this drying machine still includes filter (9) that can filter impurity in the dry air, filter (9) set up on dry compressed air channel (7) or branch pipe (10).

2. The energy-saving zero-gas-consumption micro-thermal-regeneration adsorption dryer according to claim 1, wherein the separator (6) is a gas-liquid separator, and the zero-gas-consumption electronic drainer (11) is connected to the separator (6).

3. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer as claimed in claim 1 or 2, characterized in that a humidity detector (12) is arranged on the separator (6).

4. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer as claimed in claim 1 or 2, characterized in that a first temperature detector (13) is arranged on the separator (6).

5. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer according to claim 1, characterized in that a dew point meter (14) is connected to the outlet of the dry compressed air outlet channel (7).

6. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer as claimed in claim 1, wherein a second temperature detector (15) is arranged on each of the electric heater (4) and the dry compressed air outlet channel (7).

7. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer according to claim 1, wherein the first valve group comprises a first valve (18), a second valve (19), a third valve (20) and a fourth valve (21), the first valve (18) is connected with the second valve (19) in series, the third valve (20) is connected with the fourth valve (21) in series, the first valve (18), the second valve (19) is connected with the third valve (20) and the fourth valve (21) in parallel, the dry compressed air outlet channel (7) is connected between the first valve and the second valve, and the electric heater (4) is connected between the third valve (20) and the fourth valve (21); the second valve group comprises a valve five (22), a valve six (23), a valve seven (24) and a valve eight (25), the valve five (22) is connected with the valve six (23) in series, the valve seven (24) is connected with the valve eight (25) in series, the valve five (22) and the valve six (23) are connected with the valve seven (24) and the valve eight (25) in parallel, the low-temperature compressed air inlet channel (8) is connected between the valve seven (24) and the valve eight (25), and the cooler (5) is connected between the valve five (22) and the valve six (23); the valve I (18), the valve II (19), the valve III (20), the valve IV (21), the valve V (22), the valve VI (23), the valve VII (24) and the valve VIII (25) are all pneumatic double-eccentric butterfly valves.

8. The energy-saving zero-gas-consumption micro-thermal regeneration adsorption dryer as claimed in claim 1, wherein the cooler (5) is a water cooler, and the cooler (5) has a heat exchange tube therein, wherein the heat exchange tube is a 316L stainless steel tube; the coolers (5) are at least two, and all the coolers (5) are arranged in parallel.

9. The energy-saving zero-gas-consumption micro-thermal-regeneration adsorption dryer according to claim 1, characterized in that the dryer further comprises a regulating valve (17), wherein the regulating valve (17) is arranged between the supercharger (3) and the filter (9).