CN207187453U - A kind of gas drier - Google Patents
A kind of gas drier Download PDFInfo
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- CN207187453U CN207187453U CN201720884846.5U CN201720884846U CN207187453U CN 207187453 U CN207187453 U CN 207187453U CN 201720884846 U CN201720884846 U CN 201720884846U CN 207187453 U CN207187453 U CN 207187453U
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Abstract
It the utility model is related to a kind of gas drier, on the one hand by setting circulation line and Venturi being set on air inlet pipeline, enable being mixed in containing humid gas in the compressed air to be dried in air inlet pipeline in circulation line using Venturi effect, setting that energy consumption equipment such as booster pump or air blower etc. are avoided while circulation and zero-emission is being realized in system, is reducing energy consumption.First cooling stage of another aspect regenerative process uses compressed air to be dried, and the second cooling stage uses dried compressed air, greatly reduces the consumption of dried compressed air.Gas drier of the present utility model greatly reduces the consumption of the energy consumption and dried compressed air of system, improves the quality of dried compressed air.
Description
Technical field
It the utility model is related to the technical field of gas treatment, more particularly to a kind of gas drier.
Background technology
Compressed air is using preceding needing first to carry out drying process, to remove the steam in compressed air.Drying machine is to use
In the common equipment of drying compressed air, it generally includes two adsorption towers, one when being in adsorbed state, and another is in again
Raw state, and two adsorption towers alternately regenerate, adsorption process.Adsorbent with adsorption function is set in adsorption tower,
When Wet Compression air is by adsorption tower in adsorbed state, the steam in the adsorbable Wet Compression air of adsorbent, so as to defeated
Go out dry compressed air.
According to the difference of regeneration, compressed air adsorptive drier can be divided into carries out adsorbent using principle of pressure swing adsorption
Regeneration has hot adsorptive drier without hot adsorptive drier and using temp.-changing adsorption principle progress adsorbent reactivation.Due to heating
The vapor of adsorbent internal surface can be desorbed, adsorbent is realized that deep layer is adsorbed, therefore have adsorbent in hot adsorptive drier
Dynamic adsorbance is much bigger than without the adsorbent dynamic adsorbance in hot adsorptive drier.
Have in the hot adsorptive drier course of work, the regeneration of regenerator is generally required by desorbing, cooling down and preparing three
Process.Desorption process is used to cause the steam desorption adsorbed in adsorbent, to meet circulate next time in adsorption compression air
The demand of steam；The temperature range for adsorbent to be cooled to normal sorption process is cooled down, is prepared for the absorption of next step.
China Patent No. is CN104289079A, discloses a kind of device and renovation process for drying compressed air,
In order to using the adsorbent in dry compressed air cooling regenerator, it, which separates one on discharge duct and may be connected to, is in
The shunt conduit absorbed on container of regenerative operation, the shunt conduit pass through booster pump, and the absorption container in regenerative operation leads to
Return conduits are crossed to be connected on admission line.So, the shunting of dry compressed air can be separated via shunt conduit, the shunting
Pressure after booster pump improves, into regenerative operation absorption container and tide to be dried is most mixed into through return conduits afterwards
In the air-flow of wet compressed air.In order to recycle, the booster pump in above-mentioned technical proposal is indispensable, passes through increasing
Press pump compensation be in regeneration stage in absorb container in the pressure loss so that shunt into main flow be recycled into for
May.
China Patent No. is CN106422687A, discloses a kind of blasting regeneration formula drying machine, in regenerative process, passes through drum
After blower fan draw ambient air filters through suction filter and heated device heats up again, adsorbent is desorbed into regenerator
Regeneration, regeneration air stream drain into air through valve, after regeneration ending, draw fraction dry air and the adsorbent for drying high temperature is carried out
Cold blowing is until normal temperature., it is necessary to which air blower provides kinetic energy in above-mentioned technical proposal, surrounding air could be caused to pass through regenerator.
In summary, under regeneration regime, booster pump needs to consume outside energy such as electricity when improving tempering air pressure
Can, air blower is also required to consume extraneous electric energy when providing solution and smoking aerodynamic energy, so as to considerably increase the energy of whole system
Consumption.In addition, the compressed air after regenerator is usually vented directly to air in the prior art, this also result in largely
Energy loss, improve the energy consumption of system.
The content of the invention
For the above mentioned problem of prior art, the purpose of this utility model is, there is provided a kind of gas drier, it is logical
Cross Venturi effect and realize in system and circulate, without any external force boosting, greatly reduce the energy consumption of system.
In order to solve the above-mentioned technical problem, first aspect of the present utility model provides a kind of gas drier, specific skill
Art scheme is as follows：
A kind of gas drier, including the first absorption container, the second absorption container, air inlet pipeline and outlet pipe, institute
State the first absorption container and second absorption container be arranged in parallel, it is described first absorb container and second absorb container one end with
The other end of the air inlet pipeline connection, the first absorption container and the second absorption container connects with the outlet pipe,
The first absorption container is when be in absorption operation, and described second, which absorbs container, is in regenerative operation, and described first
When absorption container is in regenerative operation, the second absorption container is in absorption operation,
The absorption container in absorption operation is used to absorb the steam in compressed air to be dried, described in again
The absorption container of raw operation is used to regenerate the absorbent wherein filled,
The air inlet pipeline is provided with Venturi, and the branch road of the Venturi passes through circulation line and the place
In the gas outlet connection of the absorption container of regenerative operation.
Further, cooler is additionally provided with the circulation line, the cooler, which is used to cool down, flows through circulation line
Steam in air-flow.
Further, drainage arrangement is additionally provided with the circulation line after the cooler, the drainage arrangement is used
In condensed water is discharged into the circulation line.
Further, the desorption gas flow tube for being connected to the absorption container in regenerative operation is separated on the air inlet pipeline
Road, the desorption airflow pipeline are provided with heater, and the heater is used to heat the desorption compressed air stream.
Preferably, the heater is that the one-level of a heater heats or the two level of two heaters heats.
Preferably, the heater be one kind in plate-fin heat exchanger, fin-tube type heat exchanger or shell-and-tube heat exchanger or
It is several.
Further, the first cooling air-flow for being connected to the absorption container in regenerative operation is separated on the air inlet pipeline
Pipeline, the first cooling air-flow pipeline are in parallel with the desorption airflow pipeline.
Second aspect offer of the present utility model is a kind of to be done using what any one above-mentioned gas drier was dried
Drying process, the drying process comprise the following steps：
1) desorb：Part compressed air to be dried is separated by air inlet pipeline and is used as desorption phase after being heated
With air-flow, the desorption phase is in the absorption container of regenerative operation with airflow passes and adsorbent therein is heated,
Desorption, being discharged containing humid gas by the absorption container in regenerative operation and flowing through circulation line after processing；When discharge is containing wet
When the dew point of gas reaches setting value, into step 2)；
2) cool down：By the dried compressed air of outlet pipe extension as cooling air-flow, the cooling gas
Stream flows through the absorption container in regenerative operation and cools down adsorbent therein, contains humid gas by being grasped in regeneration after processing
The absorption container of work is discharged and flows through circulation line；Completed when the temperature containing moisture of discharge drops to second temperature limit value；
Wherein, the discharge containing humid gas when flowing through circulation line, first pass around refrigerated separation, then flow through literary mound
In device and because Venturi effect described to be mixed in the air-flow of compressed air to be dried containing humid gas.
The third aspect of the present utility model provides what another kind was dried using any one above-mentioned gas drier
Drying process, the drying process comprise the following steps：
1) desorb：Part compressed air to be dried is separated by air inlet pipeline and is used as desorption phase after being heated
With air-flow, the desorption phase is in the absorption container of regenerative operation with airflow passes and adsorbent therein is heated,
Desorption, being discharged containing humid gas by the absorption container in regenerative operation and flowing through circulation line after processing；When discharge is containing wet
When the dew point of gas reaches setting value, into step 2)；
2) the first cooling stage：Part compressed air to be dried is separated as the first cooling stage gas by air inlet pipeline
Stream, first cooling stage are in the absorption container of regenerative operation with airflow passes and cool down adsorbent therein, handle
Being discharged containing humid gas by the absorption container in regenerative operation and flowing through circulation line afterwards；When the temperature containing moisture of discharge drops
During to the first temperature limit, into step 3)；
3) the second cooling stage：By the dried compressed air of outlet pipe extension as the second cooling stage gas
Stream, second cooling stage are in the absorption container of regenerative operation with airflow passes and cool down adsorbent therein, handle
Being discharged containing humid gas by the absorption container in regenerative operation and flowing through circulation line afterwards；When the temperature containing moisture of discharge drops
Completed to during second temperature limit value；
Wherein, the discharge containing humid gas when flowing through circulation line, first pass around refrigerated separation, then flow through literary mound
In device and because Venturi effect described to be mixed in the air-flow of compressed air to be dried containing humid gas.
Further, the drying process also includes step 4), and concrete operations are as follows：
4) switch, switch the working condition of adsorbent so that the absorption container in regenerative operation is in adsorption operations shape
State, the absorption container in adsorption operations are in regeneration operation condition.
Preferably, the desorption compressed air stream enters the absorption container in regenerative operation, institute by desorption airflow pipeline
State the first cooling stage cooling compressed air stream and the absorption container in regenerative operation is entered by the first cooling air-flow pipeline.
Further, cooler is additionally provided with the circulation line, the cooler, which is used to cool down, flows through circulation line
Steam in air-flow.
A kind of gas drier of the present utility model, has the advantages that：
1st, led to realize by the recycling containing humid gas for absorbing container discharge in regenerative operation, the utility model
Cross and Venturi is set on air inlet pipeline, and the branch road of Venturi by circulation line and is in regenerative operation
The gas outlet connection of container is absorbed, enables being mixed containing humid gas of the low pressure discharged by the gas outlet using Venturi effect
In the main flow of the compressed air to be dried of high pressure, mixed mixed gas is flowed into dry absorption container and carried out
Dry, obtain the dried compressed air of finished product.Compared with prior art, the utility model need not set the increasing of power consumption in addition
The pressure compensation device such as press pump or air blower, the complexity of system is not only reduced, has been greatly reduced the energy consumption of system,
Improve the quality of dried compressed air.
2nd, drying process of the present utility model is during absorbent regeneration, by desorption, the first cooling stage and the
Two cooling stages, and the compressed air to be dried for using with the first cooling stage and directly being separated by air inlet pipeline is desorbed, second
Cooling stage uses dried compressed air, and above-mentioned regeneration technology make use of adsorbent not produce absorption at a certain temperature
The characteristic of effect, compressed air to be dried is used in the first stage of cooling, so as to greatly reducing dried compression
The consumption of air.
3rd, the utility model will flow through being mixed containing humid gas with compressed air to be dried for the absorption container in regeneration,
And mixed gas is entered into the absorption container in absorption, and air will be directly discharged to containing humid gas so as to avoid, it is real
Existing zero-emission, it is environment-friendly and energy consumption can be reduced.
Brief description of the drawings
, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
The accompanying drawing needed to use is briefly described.It should be evident that drawings in the following description are only more of the present utility model
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is that the first form of implementation of device of the present utility model is in desorption phase；
Fig. 2 is that Fig. 1 device is in the first cooling stage；
Fig. 3 is that Fig. 1 device is in the second cooling stage；
Fig. 4 is that the second form of implementation of device of the present utility model is in desorption phase；
Fig. 5 is that Fig. 4 device is in the first cooling stage；
In figure：1-the first absorption container, the absorption containers of 2- second, 3- air inlet pipelines, 4- outlet pipes, 5- circulation lines,
6- desorbs airflow pipeline, 7- the first cooling air-flow pipelines, 8- Venturis, 9- coolers, 10- heaters, k1~k10- valves
Door
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the premise of creative work
Lower obtained every other embodiment, belong to the scope of the utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so
The data used can exchange in the appropriate case, so that embodiment of the present utility model described herein can be with except at this
In diagram or description those beyond order implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, apparatus, product or equipment
Be not necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
Embodiment 1
The first form of implementation of gas drier of the present utility model is present embodiments provided, as shown in Figure 1.
The gas that compressed air to be dried is delivered to the present embodiment 1 by pipeline from compressed air source such as air compressor machine is dried
Device, and accessed by admission line 3.After the processing of the present apparatus, dried compressed air is discharged simultaneously from outlet pipe 4
It is connected to gas equipment.
Specifically, referring to Fig. 1 to Fig. 3, gas drier of the present utility model includes first and absorbs container 1 and second
Container 2 is absorbed, and the first absorption container 1 and second absorbs container 2 and is arranged in parallel.It should be understood that first absorbs container 1 and the
Two absorption containers 2 can be that absorption tower can also be tourie.First absorption container 1 and second absorbs to be filled with container 2
Absorbent, the absorbent are used to absorb the steam in compressed air to be dried.Absorbent can be activated alumina and/or divide
Son sieve, or the material of steam, the utility model are not restricted to this in other absorbable compressed airs to be dried.
One end that the first absorption container 1 and second absorbs container 2 connects with the air inlet pipeline 3, and described first
Absorb container 1 and second and absorb the other end of container 2 and connected with the outlet pipe 4, i.e., described first absorbs container 1 and the
Two absorption containers 2 are connected by air inlet pipeline 3 with compressed air source, and are connected by outlet pipe 4 with gas equipment.
As an alternative embodiment, air inlet pipeline 3 absorbs container 1 and the by inlet pipe connection road 31 and first
Two absorption containers 2 connect.The inlet pipe connection road 31 is provided with the first air intake valve k7 and the second air intake valve k8, air inlet pipeline
3 are connected between the first air intake valve k7 and the second air intake valve k8, it is preferred that the access point of air inlet pipeline 3 connects in air inlet
The middle part of pipeline 31, the first air intake valve k7 and the second air intake valve k8 are symmetrically arranged on the both sides of the access point of air inlet pipeline 3.
Outlet pipe 4 absorbs container 2 with the first absorption container 1 and second by outlet connecting line 41 and connected.The outlet
Connecting line 41 is provided with the first outlet valve k3 and the second outlet valve k4, and outlet pipe 4 is connected to the first outlet valve k3
And second between outlet valve k4, it is preferred that the tie point of outlet pipe 4 is in the middle part of outlet connecting line 41, the first outlet
Valve k3 and the second outlet valve k4 is symmetrically arranged on the both sides of the tie point of outlet pipe 4.
During the device normal work of the present embodiment, the first air intake valve k7 and open during the second air intake valve k8 differences,
One outlet valve k3 and open during the second outlet valve k4 differences, the first air intake valve k7 and the first outlet valve k3 are opened simultaneously
Open, the second air intake valve k8 and the second outlet valve k4 are opened simultaneously.When the first air intake valve k7 and the first outlet valve k3 are opened
Qi Shi, compressed air to be dried enter second and absorb container 2, and the compressed air of the drying after processing absorbs container 2 by second
It is discharged into outlet pipe 4.When the second air intake valve k8 and the second outlet valve k4 is opened, compressed air to be dried enters first
Container 1 is absorbed, the compressed air of the drying after processing is discharged into outlet pipe 4 by the first absorption container 1.
The first absorption container 1 is when be in absorption operation, and described second, which absorbs container 2, is in regenerative operation, and described the
When one absorption container 1 is in regenerative operation, the second absorption container 2 is in absorption operation.The suction in absorption operation
Receptacle is used to absorb the steam in compressed air to be dried, and the absorption container in regenerative operation is used to regenerate wherein
The absorbent of filling.It should be noted that the regenerative operation in the utility model includes regenerative process and the regeneration of absorbent
After the completion of waiting process, therefore, when the absorption container in absorption operation is in absorption operation, the suction in regenerative operation
Receptacle may be at regenerative process or the waiting process after the completion of regeneration.
In order to realize the first absorption container 1 and the second absorption container 2 one of them be in absorption operation when, another is in
Regenerative operation, and absorption operation and the work carried out between the first absorption absorption container 2 of container 1 and second of regenerative operation switching
Make process, the present embodiment is that lower end is provided with and inlet pipe connection road in the inlet end that the first absorption container 1 and second absorbs container 2
31 first bypasses 32 in parallel, first bypass 32 are provided with the first bypass valve k1 and the second bypass valve k2.Inhaled first
The outlet side that receptacle 1 and second absorbs container 2 is that upper end is provided with parallel with outlet connecting line 41 second and bypasses 42, and this
Two bypasses 42 are provided with the 3rd bypass valve k5 and the 4th bypass valve k6.
Under the operating conditions shown in Fig. 1, the first absorption container 1 on the left side is the absorption container in regenerative operation, more
The desorption phase being specifically in regenerative operation, the second of the right absorbs container 2 holds for the absorption in absorption operation
Device.
The air inlet pipeline 3 is provided with Venturi 8, and the branch road of the Venturi 8 passes through circulation line 5 and institute
State the gas outlet connection of the absorption container in regenerative operation；From the stream containing humid gas for absorbing container discharge in regenerative operation
Through circulation line 5, when close to the branch road of the Venturi 8, described contain humid gas because Venturi effect enables
It is mixed in the air-flow of compressed air to be dried.Specifically, circulation line 5 be arranged on the first bypass 32 and air inlet pipeline 3 it
Between so that the first bypass 32 can connect with air inlet pipeline 3.
Hold as a preferred embodiment, being separated on the air inlet pipeline 3 and being connected to the absorption in regenerative operation
The desorption airflow pipeline 6 of device, the desorption airflow pipeline 6 are provided with heater 10, and the heater 10 is used to heat the solution
Suction pressure stream of compressed air.Specifically, as shown in figure 1, desorption airflow pipeline 6 be connected to inlet pipe connection road 31 and second bypass 42 it
Between so that inlet pipe connection road 31 can connect with the second bypass 42.Company of the desorption airflow pipeline 6 on inlet pipe connection road 31
Between the first air intake valve k7 and the second air intake valve k8, it is bypassed contact in the tie point of the second bypass 42 positioned at the 3rd
Between valve k5 and the 4th bypass valve k6, air inlet pipeline 3 is located at inlet pipe connection road 31 from close desorption airflow pipeline 6 and connected
The side of point is connected with desorption airflow pipeline 6, so as to which the compressed air to be dried from compressed air source is accessed into this implementation
The gas drier of example.Desorption airflow pipeline 6 is provided with valve k9 between the access point and heater 10 of air inlet pipeline 3.
Compressed air to be dried is divided into two-way, all the way through stripping gas after air inlet pipeline 3 accesses desorption airflow pipeline 6
Flow tube road 6 flows to the absorption container in regenerative operation on the left side, and the road gas is used as desorption phase compressed air stream, another
Road flows to the absorption container in absorption operation on the right, compressed air main flow as to be dried through inlet pipe connection road 31.
In order to fully desorb the steam that the adsorbent absorbed in container in regenerative operation combines, pressed in desorption phase
Before stream of compressed air flows into the absorption container in regenerative operation, it is desirable that heating is carried out to it, because desorption compressed air stream
The rise of temperature can effectively reduce the water vapor partial pressure in air-flow, so as in the air-flow by being combined with the adsorbent of steam
When, moisture content is desorbed to the motive force increase of the air-flow by adsorbent surface, and then causes adsorbent to reach the mesh of deep layer dehydration
, improve it and the effect of the steam in compressed air to be dried is absorbed in next circulation.
It should be understood that on desorption airflow pipeline 6 heater 10 that sets can be heater one-level heating or
The two level heating of two heaters, specific selection can enter according in actual production to the quality requirements of dried compressed air
Row adjustment.Certainly, the form of the heater 10 can be plate-fin heat exchanger, fin-tube type heat exchanger or shell-and-tube heat exchanger
In one or more.Heating agent for heating desorption stage compressed air stream can be that low-pressure steam can also be that electricity adds
Heat.The present embodiment is preferable, and it is electrical heating that it, which heats heating agent, and can select to open according to the demands of actual production
Electrical heating pattern or closing electrical heating pattern.
It should be understood that when air-flow passes through and is in the absorption container of regenerative operation and flows through pipeline, exist certain
Pressure drop, so that the pressure of the moisture-containing airflow in circulation line 5 is less than the compressed air to be dried in air inlet pipeline 3
Pressure.In order to realize the compressed air main flow to be dried that can be mixed in containing humid gas in air inlet pipeline 3 in circulation line 5
In air-flow, the present embodiment is provided with Venturi 8 on air inlet pipeline 3, specifically, the Venturi 8 be arranged on flow into
On the flow path of the compressed air to be dried of gas connecting line 31, the branch road of Venturi 8 is connected with circulation line 5,
In this way, the compressed air main flow airflow passes Venturi 8 to be dried that air inlet pipeline 3 conveys enters in adsorption operations
When absorbing container, the moisture-containing airflow in circulation line 5 enters Venturi 8 by the branch road of Venturi 8, due to gas stream
Speed increase, so as to produce negative pressure near high-velocity fluid, and then produce motive force so that the moisture-containing airflow in circulation line 5 mixes
In the main flow air-flow for entering the compressed air to be dried passed through, to realize that the interior circulation of air-flow provides power.
As a kind of more excellent embodiment, cooler 9 is additionally provided with the circulation line 5, the cooler 9 is arranged on
Between absorption container and Venturi 8 in regenerative operation, farthest reduce the part moisture-containing airflow and be mixed into and wait to do
To the influence of moisture content in mixed gas in the air-flow of dry compressed air, and then effective suction of the reduction in adsorption operations
The load of the adsorbent of receptacle.
Embodiment 2
In the prior art, in order to reduce the energy consumption of whole plant area, generally sufficiently to be utilized for waste heat, especially boiler
The waste heat of steam.
The second form of implementation of gas drier of the present utility model is present embodiments provided, as shown in Figure 4.This implementation
Heater 10 its heating agent set on desorption airflow pipeline 6 in example preferably uses boiler low-pressure steam, to make full use of
The waste heat of steam, reduce system energy consumption.And when using boiler low-pressure steam as heating agent, steam needs continuous flowing, so that
Steam is obtained to discharge in time.
The regenerative process of the gas drier of the present embodiment, needed after desorption phase is completed cold to adsorbent progress
But, in order that the adsorbent gone with compressed air to be dried in absorption tower of the cooling in regenerative operation, the gas of the present embodiment
Body drying device separates the first cooling air-flow pipeline for being connected to the absorption container in regenerative operation on the air inlet pipeline 3
7, the first cooling air-flow pipeline 7 is in parallel with the desorption airflow pipeline 6.
Specifically, Fig. 4 to Fig. 5 is referred to, the structure basic one of the present embodiment and the gas drier described in embodiment 1
Cause, difference is, the first cooling air-flow pipeline 7 is connected between the bypass of inlet pipe connection road 31 and second 42 so that
Inlet pipe connection road 31 42 can be connected with the second bypass by the first cooling air-flow pipeline 7, and the first cooling air-flow pipeline 7 with
The parallel connection of airflow pipeline 6 is desorbed, the first cooling air-flow pipeline 7 is provided with the valve k10 for being used for opening or closing this path.
The gas drier of the present embodiment needs to press as cooling using compressed air to be dried in cooling stage
Stream of compressed air and when the heating agent of heater can not be prevented to be flowed by heater, can select to close on desorption airflow pipeline 6
Valve k9, and open the first cooling air-flow pipeline 7 on valve k10, be now in absorption container and the air inlet of regenerative operation
Pipeline 3 connects, then can separate part compressed air to be dried and the not heated absorption being directly entered in regenerative operation is held
In device.
Embodiment 3
The present embodiment provides a kind of gas using any one gas drier in above-described embodiment 1 and embodiment 2
Drying process, the gas drying process includes absorbing and two big links of regeneration, i.e., the adsorbent of one absorption container are adsorbed
Operate and another absorption container progress regenerative operation, due to adsorbent self-characteristic so that both recycle, it is possible to
Realize the not batch process to gas.It should be noted that the regenerative operation in the utility model includes the regeneration of absorbent
Waiting process after the completion of journey and regeneration, therefore, when the absorption container in absorption operation is in absorption operation, in again
The absorption container of raw operation may be at regenerative process or the waiting process after the completion of regeneration.
Fig. 1 to Fig. 5 is referred to, regenerative operation is in the first absorption container 1 on the left side, the second of the right absorbs container 2
Exemplified by adsorption operations, illustrate compressed air drying technique of the present utility model.Switching first absorbs container 1 after the completion of above-mentioned
With the second use state for absorbing adsorbent in container 2, that is, the first absorption container 1 on the left side is caused to be in adsorption operations, the right
Second absorption container 2 be in regenerative operation.
The gas drying process comprises the following steps：
1) desorb：Part compressed air to be dried is separated by air inlet pipeline 3 and after being heated as desorption rank
Section air-flow, the desorption phase are in the absorption container of regenerative operation with airflow passes and adsorbent therein are added
Heat, desorption, being discharged containing humid gas by the absorption container in regenerative operation after processing simultaneously flow through circulation line 5；When discharge
When dew point containing humid gas reaches setting value, into step 2), specifically：
1.1) compressed air to be dried all the way is separated as desorption phase by air inlet pipeline 3 with compressed air stream and to carry out
Heat, the gas after processing flows through first of the i.e. left side of absorption container in regenerative operation and absorbs container 1 and to wherein
Adsorbent heated, desorbed, being discharged by the first absorption container 1 containing humid gas and flowed through circulation line 5 after processing.
1.2) contain humid gas when flowing through circulation line 5 by what the first absorption container 1 was discharged, first pass around refrigerated separation,
Isolate containing liquid condensation water contained in humid gas, then flow through Venturi 8 and described in Venturi effect causes
It is mixed in containing humid gas in the air-flow of another way compressed air to be dried of air inlet pipeline 3.
1.3) compressed air to be dried containing the mixture that humid gas is formed by circulation line 5 is mixed with subsequently entering place
It is to carry out adsorption treatment in the second absorption container 2 in the absorption container of adsorption operations, is obtained after adsorbing the moisture content in gaseous mixture
Dried compressed air.Dried compressed air is drained into gas point by outlet pipe 4.
Desorption process continues to stop when reaching setting value to the dew point containing humid gas that the second absorption container 2 is discharged, then
Into step 2).
2) cool down：By the dried compressed air of the extension of outlet pipe 4 as cooling air-flow, the cooling gas
Stream flows through the absorption container in regenerative operation and cools down adsorbent therein, contains humid gas by being grasped in regeneration after processing
The absorption container of work is discharged and flows through circulation line 5；Completed when the temperature containing moisture of discharge drops to second temperature limit value；
Wherein, the discharge containing humid gas when flowing through circulation line 5, first pass around refrigerated separation, then flow through text
In mound device 8 and due to Venturi effect cause it is described be mixed in containing humid gas in the air-flow of compressed air to be dried, specifically
's：
2.1) used by the dried compressed air of the extension of outlet pipe 4 as cooling compressed air stream, the cooling
What compressed air stream flowed through the i.e. left side of absorption container in regenerative operation first absorbs container 1 and adsorbent therein is cold
But, being discharged containing humid gas by the absorption container in regenerative operation after processing and circulation line 5 is flowed through.Outlet pipe 4 it is another
Most dried compressed air is drained into gas point.
2.2) contain humid gas when flowing through circulation line 5 by what the first absorption container 1 was discharged, first pass around refrigerated separation,
Isolate containing liquid condensation water contained in humid gas, then flow through Venturi 8 and described in Venturi effect causes
It is mixed in containing humid gas in the air-flow of the compressed air to be dried of air inlet pipeline 3.
2.3) compressed air to be dried containing the mixture that humid gas is formed by circulation line 5 is mixed with subsequently entering place
It is to carry out adsorption treatment in the second absorption container 2 in the absorption container of adsorption operations, it is dried by what is obtained after the completion of processing
Compressed air enters step 2.1).
Cooling procedure continues to complete when dropping to second temperature limit value to the temperature containing moisture of discharge.
After the completion of step 2), whole second absorption container 2 adsorbs, and first, which absorbs the regeneration of container 1, completes, and switching first absorbs
Container 1 and second absorbs the mode of operation of container 2, that is, causes first to absorb the mode of operation that container 1 is in absorption, second absorbs
Container 2 is in the mode of operation of regeneration.
Embodiment 4
The present embodiment provides a kind of gas using any one gas drier in above-described embodiment 1 and embodiment 2
Drying process, the gas drying process includes absorbing and two big links of regeneration, i.e., the adsorbent of one absorption container are adsorbed
Operate and another absorption container progress regenerative operation, due to adsorbent self-characteristic so that both recycle, it is possible to
Realize the not batch process to gas.
Fig. 1 to Fig. 5 is referred to, regenerative operation is in the first absorption container 1 on the left side, the second of the right absorbs container 2
Exemplified by adsorption operations, illustrate compressed air drying technique of the present utility model.Switching first absorbs container 1 after the completion of above-mentioned
With the second use state for absorbing adsorbent in container 2, that is, the first absorption container 1 on the left side is caused to be in adsorption operations, the right
Second absorption container 2 be in regenerative operation.
Second absorbs the mode of operation that container 2 is in absorption, and the first absorption container 1 includes when being in the mode of operation of regeneration
Following steps：
1) desorb：
1.1) compressed air to be dried all the way is separated as desorption phase by air inlet pipeline 3 with compressed air stream and to carry out
Heat, the gas after processing flows through first of the i.e. left side of absorption container in regenerative operation and absorbs container 1 and to wherein
Adsorbent heated, desorbed, being discharged by the first absorption container 1 containing humid gas and flowed through circulation line 5 after processing.
1.2) contain humid gas when flowing through circulation line 5 by what the first absorption container 1 was discharged, first pass around refrigerated separation,
Isolate containing liquid condensation water contained in humid gas, then flow through Venturi 8 and described in Venturi effect causes
It is mixed in containing humid gas in the air-flow of another way compressed air to be dried of air inlet pipeline 3.
1.3) compressed air to be dried containing the mixture that humid gas is formed by circulation line 5 is mixed with subsequently entering place
It is to carry out adsorption treatment in the second absorption container 2 in the absorption container of adsorption operations, is obtained after adsorbing the moisture content in gaseous mixture
Dried compressed air.Dried compressed air is drained into gas point by outlet pipe 4.
Desorption process continues to stop when reaching setting value to the dew point containing humid gas that the second absorption container 2 is discharged, then
Into step 2).Specifically refer to Fig. 1 and Fig. 4.
2) the first cooling stage：
2.1) compressed air to be dried all the way is separated as the first cooling stage compressed air stream by air inlet pipeline 3,
First cooling stage flows through the first absorption container 1 on the i.e. left side of absorption container in regenerative operation with compressed air stream simultaneously
Adsorbent therein is cooled down, being discharged containing humid gas by the first absorption container 1 and flowing through circulation line 5 after processing.
2.2) contain humid gas when flowing through circulation line 5 by what the first absorption container 1 was discharged, first pass around refrigerated separation,
Isolate containing liquid condensation water contained in humid gas, then flow through Venturi 8 and described in Venturi effect causes
It is mixed in containing humid gas in the air-flow of another way compressed air to be dried of air inlet pipeline 3.
2.3) compressed air to be dried containing the mixture that humid gas is formed by circulation line 5 is mixed with subsequently entering place
It is to carry out adsorption treatment in the second absorption container 2 in the absorption container of adsorption operations, is obtained after adsorbing the moisture content in gaseous mixture
Dried compressed air.Dried compressed air is drained into gas point by outlet pipe 4.
First cooling stage continues to stop when dropping to the first temperature limit to the temperature containing moisture of discharge, subsequently into step
It is rapid 3).
Specifically refer to Fig. 2 and Fig. 5.
3) the second cooling stage：
3.1) by the dried compressed air of the extension of outlet pipe 4 as the second cooling stage compressed air stream,
Second cooling stage flows through the first absorption container 1 on the i.e. left side of absorption container in regenerative operation with compressed air stream and will
Adsorbent cooling therein, being discharged containing humid gas by the absorption container in regenerative operation after processing simultaneously flow through circulation line 5.
The dried compressed air of another major part of outlet pipe 4 is drained into gas point.
3.2) contain humid gas when flowing through circulation line 5 by what the first absorption container 1 was discharged, first pass around refrigerated separation,
Isolate containing liquid condensation water contained in humid gas, then flow through Venturi 8 and described in Venturi effect causes
It is mixed in containing humid gas in the air-flow of the compressed air to be dried of air inlet pipeline 3.
3.3) compressed air to be dried containing the mixture that humid gas is formed by circulation line 5 is mixed with subsequently entering place
It is to carry out adsorption treatment in the second absorption container 2 in the absorption container of adsorption operations, it is dried by what is obtained after the completion of processing
Compressed air enters step 3.1).
Second cooling stage continues to complete when dropping to second temperature limit value to the temperature containing moisture of discharge.Specifically please
Refering to Fig. 3
After the completion of step 3), whole second absorption container 2 adsorbs, and first, which absorbs the regeneration of container 1, completes, and switching first absorbs
Container 1 and second absorbs the mode of operation of container 2, that is, causes first to absorb the mode of operation that container 1 is in absorption, second absorbs
Container 2 is in the mode of operation of regeneration, and specific work process is as hereinbefore.
First temperature limit of the present embodiment is that an absorption of the adsorbent in the absorption container in regenerative operation is faced
Boundary's point, it is specifically that, when temperature is more than the first temperature limit, adsorbent does not adsorb the steam in the gas flowed through, works as temperature
During less than the first temperature limit, steam in the gas that adsorbent absorption flows through.The gas drying process of the present embodiment is exactly to utilize
The above-mentioned characteristic of adsorbent, during reproduced state, the cold blowing process of adsorbent is divided into two stages, made in the first cooling stage
Cold blowing is carried out with compressed air to be dried, because the temperature being now in the absorption container of regenerative operation is more than the first temperature
Limit value, adsorbent will not adsorb the steam in compressed air to be dried.But with the progress of the first cooling stage cold blowing, place
Gradually reduce in the temperature in the absorption container of regenerative operation, when temperature is gradually decrease to below the first temperature limit, pass through
The adsorbent of desorption dehydration is absorbed by the steam in the compressed air to be dried that flows through.In order to avoid the production of this phenomenon
It is raw, change the gas of cold blowing into dried compressed air in the second cooling stage, will be in using dried compressed air
Adsorbent in the absorption container of regenerative operation is cooled to second temperature limit value, and the second temperature limit value is that adsorbent is inhaled
Operation temperature during attached operation.
The present embodiment is preferable, and the first temperature limit scope is 50~60 DEG C, and second temperature limit value is room temperature.
As an alternative embodiment, the desorption phase compressed air stream is entered by desorption airflow pipeline 6
In the absorption container of regenerative operation, the first cooling stage compressed air stream is entered by the first cooling air-flow pipeline 7 to be in
The absorption container of regenerative operation.
As a kind of more excellent embodiment, cooler 9 is additionally provided with the circulation line 5, the cooler 9 is arranged on
Between absorption container and Venturi 8 in regenerative operation, farthest reduce the part moisture-containing airflow and be mixed into and wait to do
To the influence of moisture content in mixed gas in the air-flow of dry compressed air, and then effective suction of the reduction in adsorption operations
The load of the adsorbent of receptacle.
A kind of gas drier and drying process of the present utility model have following beneficial effect：
1st, led to realize by the recycling containing humid gas for absorbing container discharge in regenerative operation, the utility model
Cross and Venturi is set on air inlet pipeline, and the branch road of Venturi by circulation line and is in regenerative operation
The gas outlet connection of container is absorbed, enables being mixed containing humid gas of the low pressure discharged by the gas outlet using Venturi effect
In the main flow of the compressed air to be dried of high pressure, mixed mixed gas is flowed into dry absorption container and carried out
Dry, obtain the dried compressed air of finished product.Compared with prior art, the utility model need not set the increasing of power consumption in addition
The pressure compensation device such as press pump or air blower, the complexity of system is not only reduced, has been greatly reduced the energy consumption of system,
Improve the quality of dried compressed air.
2nd, drying process of the present utility model is during absorbent regeneration, by desorption, the first cooling stage and the
Two cooling stages, and the compressed air to be dried for using with the first cooling stage and directly being separated by air inlet pipeline is desorbed, second
Cooling stage uses dried compressed air, and above-mentioned regeneration technology make use of adsorbent not produce absorption at a certain temperature
The characteristic of effect, compressed air to be dried is used in the first stage of cooling, so as to greatly reducing dried compression
The consumption of air.
3rd, the utility model will flow through being mixed containing humid gas with compressed air to be dried for the absorption container in regeneration,
And mixed gas is entered into the absorption container in adsorption operations, it will be directly discharged to greatly containing humid gas so as to avoid
Gas, realizes zero-emission, environment-friendly and can reduce energy consumption.
Described above fully discloses specific embodiment of the present utility model.It is pointed out that it is familiar with the neck
Any change that the technical staff in domain is done to specific embodiment of the present utility model is all without departing from right of the present utility model
The scope of claim.Correspondingly, the scope of claim of the present utility model is also not limited only to foregoing specific embodiment party
Formula.
Claims (6)
1. a kind of gas drier, it is characterised in that absorb container (1), the second absorption container (2), air inlet pipe including first
Road (3) and outlet pipe (4), the first absorption container (1) and the second absorption container (2) are arranged in parallel, and described first absorbs
One end of container (1) and the second absorption container (2) connect with the air inlet pipeline (3), the first absorption container (1) and the
The other end of two absorption containers (2) connects with the outlet pipe (4),
The first absorption container (1) is when be in absorption operation, and described second, which absorbs container (2), is in regenerative operation, and described the
When one absorption container (1) is in regenerative operation, the second absorption container (2) is in absorption operation,
The absorption container in absorption operation is used to absorb the steam in compressed air to be dried, described in regeneration behaviour
The absorption container of work is used to regenerate the absorbent wherein filled,
The air inlet pipeline (3) is provided with Venturi (8), and the branch road of the Venturi (8) passes through circulation line (5)
Connected with the gas outlet of the absorption container in regenerative operation.
2. a kind of gas drier according to claim 1, it is characterised in that be additionally provided with the circulation line (5)
Cooler (9), the cooler (9) flow through the steam in the air-flow of circulation line (5) for cooling.
3. a kind of gas drier according to claim 2, it is characterised in that described on the circulation line (5)
Drainage arrangement is additionally provided with after cooler (9), the drainage arrangement is used to condensed water discharging the circulation line (5).
A kind of 4. gas drier according to claim 1, it is characterised in that the company of separating on the air inlet pipeline (3)
The desorption airflow pipeline (6) of the absorption container air inlet in regenerative operation is connected to, the desorption airflow pipeline (6), which is provided with, to be added
Hot device (10), the heater (10) are used to heat the compressed air to be dried flowed through.
5. a kind of gas drier according to claim 4, it is characterised in that the heater (10) is a heating
The one-level heating of device or the two level heating of two heaters.
A kind of 6. gas drier according to claim 4, it is characterised in that the company of separating on the air inlet pipeline (3)
It is connected to the first cooling air-flow pipeline (7) of the absorption container air inlet in regenerative operation, the first cooling air-flow pipeline (7)
It is in parallel with the desorption airflow pipeline (6).
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| CN201720884846.5U CN207187453U (en) | 2017-07-20 | 2017-07-20 | A kind of gas drier |
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| CN201720884846.5U CN207187453U (en) | 2017-07-20 | 2017-07-20 | A kind of gas drier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107456848A (en) * | 2017-07-20 | 2017-12-12 | 云威能源科技（上海）有限公司 | A kind of gas drier and drying process |
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2017
- 2017-07-20 CN CN201720884846.5U patent/CN207187453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107456848A (en) * | 2017-07-20 | 2017-12-12 | 云威能源科技（上海）有限公司 | A kind of gas drier and drying process |
| CN107456848B (en) * | 2017-07-20 | 2023-12-12 | 云威能源科技（上海）有限公司 | Gas drying device and drying process |
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