CN103759998A - Atmosphere dehumidification method and device - Google Patents
Atmosphere dehumidification method and device Download PDFInfo
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- CN103759998A CN103759998A CN201410028308.7A CN201410028308A CN103759998A CN 103759998 A CN103759998 A CN 103759998A CN 201410028308 A CN201410028308 A CN 201410028308A CN 103759998 A CN103759998 A CN 103759998A
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Abstract
The invention provides an atmosphere dehumidification method and device. The atmosphere dehumidification method comprises the following steps: introducing the atmosphere which needs to be dehumidified into a dehumidification gas channel arranged in an inner wall of a dehumidification pipe to ensure that the inner wall of the dehumidification pipe is in contact with the atmosphere which needs to be dehumidified; enabling a permeating membrane to adsorb moisture in the atmosphere, and diffusing the moisture adsorbed by the permeating membrane to the outer wall of the dehumidification pipe from the inner wall of the dehumidification pipe; collecting the requisite amount of drying atmosphere dehumidified by the dehumidification pipe by using a sampling pump, and enabling the surplus drying atmosphere dehumidified by the dehumidification pipe to enter a gas backflow channel in a backflow manner; and enabling the drying atmosphere in the gas backflow channel to be in contact with the outer wall of the dehumidification pipe, taking away the moisture of the outer wall of the dehumidification pipe, and discharging the wet atmosphere which is in contact with the outer wall of the dehumidification pipe. The atmosphere dehumidification method and device provided by the invention have the advantages that the damage caused by aerosol particles in a heating dehumidification process is effectively avoided, the influence of an atmospheric moisture factor on atmosphere mass concentration monitoring can be avoided, and the method and the device are suitable for lossless atmosphere mass quality monitoring use.
Description
Technical field
The present invention relates to air quality surveillance field, in particular to a kind of atmosphere dehumanization method and device.
Background technology
Current China Air Pollutants total emission volumn is still larger, take Fine Particles PM2.5 and ozone as the atmosphere combined pollution of representative, worsening fast and spreading, atmospheric environment situation is very severe, and the measurement of Atmospheric particulates mass concentration becomes the direct approach of environmental pollution monitoring and evaluation.
Throughout the year, China's atmospheric humidity height is different, southern and northern humidity difference is also larger, the steam composition of the larger proportion existing in atmosphere can cause the particulate size in atmosphere to become large, thereby make the Atmospheric particulates mass concentration value that records higher, the residing environmental baseline of the relation of atmospheric humidity and particulate size and monitoring instrument is closely related, also do not find at present relation definite between them, so the atmosphere of sampling is dehumidified and becomes the necessary process in air quality concentration monitor before monitoring.
Adopt the method for heating and dehumidification can effectively remove the steam in sampling atmosphere, in order to ensure the steam in atmosphere, efficiently volatilize, heating and dehumidification device need be heated to approach the high temperature of 100 ℃, some composition generation vaporization at high temperature or high-temperature damages in atmosphere but so high temperature can make to sample, thus the accuracy of monitoring result affected.
Summary of the invention
The invention provides a kind of atmosphere dehumanization method and device, the defect and the deficiency that for overcoming traditional heating dehumanization method, exist.
The invention provides a kind of atmosphere dehumanization method, the method comprises the following steps:
The atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying, wherein, dehumidifying tube wall is a permeable membrane, dehumidification pipe is arranged in dehydrating unit housing, forms a gas backstreaming passage between dehydrating unit housing and dehumidification pipe outer wall;
Moisture in permeable membrane absorption atmosphere, the moisture of permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
Use sampling pump to gather the dry atmosphere after dehumidification pipe dehumidifying of ormal weight;
Residue dry atmosphere after dehumidification pipe dehumidifying is refluxed and entered in gas backstreaming passage;
Dry atmosphere in gas backstreaming passage contacts with the outer wall of dehumidification pipe, takes away the moisture on dehumidification pipe outer wall;
Reflux pump is discharged the damp atmosphere after contacting with the outer wall of dehumidification pipe, with the pressure perseverance that keeps gas backstreaming passage, is greater than the pressure of gas passage that dehumidifies, thereby makes the moisture of permeable membrane absorption by the inwall of dehumidification pipe, be continued to diffuse to the outer wall of dehumidification pipe.
The present invention also provides another kind of atmosphere dehumanization method, and the method comprises the following steps:
The atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying, wherein, dehumidifying tube wall is a permeable membrane, dehumidification pipe is arranged in dehydrating unit housing, forms a gas backstreaming passage between dehydrating unit housing and dehumidification pipe outer wall;
Moisture in permeable membrane absorption atmosphere, the moisture of permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
One humidity sensor that is arranged on dehumidification pipe end is measured in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording is sent to a controller, controller is according to the operating power of the humidity value control reflux pump receiving, the humidity value receiving when controller is when setting humidity value, the operating power of controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, and the operating power of controller control reflux pump reduces;
Use sampling pump to gather the dry atmosphere after dehumidification pipe dehumidifying of ormal weight;
Residue dry atmosphere after dehumidification pipe dehumidifying is refluxed and entered in gas backstreaming passage;
Dry atmosphere in gas backstreaming passage contacts with the outer wall of dehumidification pipe, takes away the moisture on dehumidification pipe outer wall;
Reflux pump is discharged the damp atmosphere after contacting with the outer wall of dehumidification pipe, due to the control of controller to reflux pump operating power, cause when the operating power of reflux pump raises, the speed that gas is discharged by gas backstreaming passage increases, pressure differential between gas backstreaming passage and dehumidifying gas passage is increased, and increased by the moisture that dehumidification pipe inwall diffuses to dehumidification pipe outer wall, when the operating power of reflux pump reduces, the Speed Reduction that gas is discharged by gas backstreaming passage, pressure differential between gas backstreaming passage and dehumidifying gas passage reduces, and reduced by the outer wall moisture that dehumidification pipe inwall diffuses to dehumidification pipe.
The invention provides a kind of atmosphere dehydrating unit, comprising: dehumidification pipe, sampling pump, housing, recirculatory pipe, reflux pump, wherein,
Dehumidification pipe is hollow tubular, between dehumidification pipe inwall, form a dehumidifying gas passage, dehumidifying tube wall is a permeable membrane, permeable membrane is for diffusing to dehumidification pipe outer wall by the moisture of the atmosphere of dehumidification pipe inwall absorption by dehumidification pipe inwall, the moisture that dehumidification pipe is used for adsorbing atmosphere is to obtain dry atmosphere, the two ends of dehumidification pipe are respectively equipped with a dehumidification pipe entrance and a dehumidification pipe first exports, the side of dehumidification pipe is provided with a dehumidification pipe second and exports, wherein, dehumidification pipe entrance is for receiving the atmosphere that need to dehumidify, dehumidification pipe the first outlet is for being drained to sampling pump by the dry atmosphere after dehumidification pipe dehumidifying, dehumidification pipe the second outlet is connected with recirculatory pipe, for the dry atmosphere refluxing after dehumidification pipe dehumidifying,
Sampling pump is connected with dehumidification pipe the first outlet, for the dry atmosphere after dehumidification pipe dehumidifying is introduced to mass concentration monitoring equipment;
The outer wall of housing is provided with a reflux gas entrance and reflux gas outlet, housing surrounds on dehumidification pipe except dehumidification pipe entrance, dehumidification pipe first exports and dehumidification pipe second exports remainder, between the inwall of housing and the outer wall of dehumidification pipe, form a gas backstreaming passage, the dry atmosphere that gas backstreaming passage flows into for introducing recirculatory pipe, dry atmosphere contact dehumidification pipe outer wall is also taken away after diffusing to the moisture of dehumidification pipe outer wall by dehumidification pipe inwall and is discharged through reflux gas outlet;
The two ends of recirculatory pipe are connected with the reflux gas entrance of dehumidification pipe the second outlet and housing outer wall respectively, and recirculatory pipe is for passing back into gas backstreaming passage by a part of dry atmosphere after dehumidification pipe dehumidifying;
Reflux pump is connected with the reflux gas outlet of housing outer wall, and reflux pump is for discharging the gas of discharging from reflux gas outlet.
Further, the section of housing and dehumidification pipe is rectangle, and the section axis of housing overlaps with the section axis of dehumidification pipe.
Further, permeable membrane is the airtight absorbent material film of special type take sulfonic group as carrier.
Further, atmosphere dehydrating unit provided by the invention also comprises a constant humidity control loop, constant humidity control loop is stabilized in below setting humidity value for controlling the humidity value of the atmosphere after dehumidification pipe dehumidifying, constant humidity control loop comprises a humidity sensor and a controller, wherein, humidity sensor is arranged on dehumidification pipe end, for measuring in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording being sent to controller, controller is connected with humidity sensor and reflux pump respectively, the operating power of the humidity value control reflux pump that controller receives for basis, the humidity value receiving when controller is when setting humidity value, the operating power of controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, the operating power of controller control reflux pump reduces.
The present invention also provides another kind of atmosphere dehydrating unit, comprising: multiple dehumidification pipes, the first buncher, the second buncher, sampling pump, housing, recirculatory pipe, reflux pump, wherein,
Multiple dehumidification pipes are hollow tubular, each dehumidifying gas passage that forms between multiple dehumidification pipe inwalls, the tube wall of multiple dehumidification pipes is a permeable membrane, permeable membrane is for diffusing to dehumidification pipe outer wall by the moisture of the atmosphere of dehumidification pipe inwall absorption by dehumidification pipe inwall, the moisture that multiple dehumidification pipes are used for adsorbing atmosphere is to obtain dry atmosphere, the two ends of multiple dehumidification pipes are respectively equipped with a dehumidification pipe entrance and dehumidification pipe outlet, wherein, dehumidification pipe entrance is connected with the first buncher, and dehumidification pipe outlet is connected with the second buncher;
The first buncher comprises a gas access and multiple dehumidification pipes connectivity port, wherein, gas access is for receiving the atmosphere that need to dehumidify, multiple dehumidification pipes connectivity port is connected with multiple dehumidification pipe entrances respectively, for the atmosphere that needs are dehumidified, causes respectively multiple dehumidifying gas passages;
The second buncher comprises multiple dehumidification pipes connectivity port, a gas vent and a return port, wherein, multiple dehumidification pipes connectivity port is connected with multiple dehumidification pipe outlets respectively, for the dry atmosphere after multiple dehumidification pipe dehumidifying is caused to the second buncher, gas vent is connected with sampling pump, and return port is connected with recirculatory pipe;
Sampling pump is connected with the gas vent of the second buncher, for the dry atmosphere after multiple dehumidification pipe dehumidifying is introduced to mass concentration monitoring equipment;
The outer wall of housing is provided with a reflux gas entrance and reflux gas outlet, housing surrounds the remainder except dehumidification pipe entrance, dehumidification pipe outlet on multiple dehumidification pipes, between the inwall of housing and the outer wall of multiple dehumidification pipes, form a gas backstreaming passage, the dry atmosphere that gas backstreaming passage flows into for introducing recirculatory pipe, dry atmosphere contact dehumidification pipe outer wall is also taken away after diffusing to the moisture of dehumidification pipe outer wall by dehumidification pipe inwall and is discharged through reflux gas outlet;
The two ends of recirculatory pipe are connected with the return port of the second buncher and the reflux gas entrance of housing outer wall respectively, and recirculatory pipe is for passing back into gas backstreaming passage by a part of dry atmosphere after multiple dehumidification pipe dehumidifying;
Reflux pump is connected with the reflux gas outlet of housing outer wall, and reflux pump is for discharging the gas of discharging from reflux gas outlet.
Further, the section of housing and dehumidification pipe is rectangle, and the axis of housing is parallel with the section axis of multiple dehumidification pipes.
Further, permeable membrane is the airtight absorbent material film of special type take sulfonic group as carrier.
Further, atmosphere dehydrating unit provided by the invention also comprises a constant humidity control loop, constant humidity control loop is stabilized in below setting humidity value for controlling the humidity value of the atmosphere after dehumidification pipe dehumidifying, constant humidity control loop comprises a humidity sensor and a controller, wherein, humidity sensor is connected with the second buncher, for measuring in real time the humidity of the atmosphere after multiple dehumidification pipe dehumidifying and the humidity value recording being sent to controller, controller is connected with humidity sensor and reflux pump respectively, the operating power of the humidity value control reflux pump that controller receives for basis, the humidity value receiving when controller is when setting humidity value, the operating power of controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, the operating power of controller control reflux pump reduces.
Atmosphere dehumanization method provided by the invention and device have overcome the defect of traditional heating dehumanization method, the damage that can effectively avoid heating and dehumidification process to cause particulate in atmosphere, and can avoid the impact of atmospheric humidity factor on air quality concentration monitor, be more suitable for harmless air quality surveillance and use, more energy-conserving and environment-protective.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of atmosphere dehumanization method the first embodiment provided by the invention;
Fig. 2 is the process flow diagram of atmosphere dehumanization method the second embodiment provided by the invention;
Fig. 3 is the sectional view of atmosphere dehydrating unit the first embodiment provided by the invention;
Fig. 4 is the sectional view of atmosphere dehydrating unit the second embodiment provided by the invention;
Fig. 5 is the sectional view of atmosphere dehydrating unit the 3rd embodiment provided by the invention.
Description of reference numerals: 1-housing; 2-dehumidification pipe; 3-recirculatory pipe; 4-sampling pump; 5-reflux pump; 6-dehumidification pipe inwall; 7-dehumidification pipe outer wall; 8-dehumidification pipe entrance; 9-dehumidification pipe first exports; 10-dehumidification pipe second exports; 11-reflux gas entrance; The outlet of 12-reflux gas; 13-humidity sensor; 14-controller; 15-dehumidification pipe entrance; The outlet of 16-dehumidification pipe; The C1-gas passage that dehumidifies; C2-gas backstreaming passage; The combination of 2 '-dehumidification pipe; A, B-dehumidification pipe buncher; A1-gas access; A2-dehumidification pipe connectivity port; B1-dehumidification pipe connectivity port; B2-gas vent; B3-return port.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not paying the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The process flow diagram that is illustrated in figure 1 atmosphere dehumanization method the first embodiment provided by the invention, the method comprises the following steps:
S110: the atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying;
Wherein, dehumidifying tube wall is a permeable membrane, and dehumidification pipe is arranged in dehydrating unit housing, forms a gas backstreaming passage between dehydrating unit housing and dehumidification pipe outer wall;
S120: the moisture in permeable membrane absorption atmosphere, the moisture of permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
Because the pressure of gas backstreaming passage is greater than the pressure of the gas passage that dehumidifies, thus the dew point of gas backstreaming passage lower than the dew point of dehumidifying gas passage, thereby cause the moisture of permeable membrane absorption by the inwall of dehumidification pipe, to be diffused to the outer wall of dehumidification pipe.
S130: use sampling pump to gather the dry atmosphere after dehumidification pipe dehumidifying of ormal weight;
The end of dehumidification pipe is provided with a dehumidification pipe first and exports, and dehumidification pipe the first outlet connects sampling pump, the gas sample that dry atmosphere that sampling pump gathers detects as air quality concentration.
S140: the residue dry atmosphere after dehumidification pipe dehumidifying is refluxed and entered in gas backstreaming passage;
Sampling pump gathers a certain amount of dry atmosphere as gas sample, and all the other dry atmospheres reflux and enter in gas backstreaming passage through a recirculatory pipe being connected between dehumidification pipe end and gas backstreaming passage;
S150: the dry atmosphere in gas backstreaming passage contacts with the outer wall of dehumidification pipe, takes away the moisture on dehumidification pipe outer wall;
Dry atmosphere in gas backstreaming passage is taken away the moisture on dehumidification pipe outer wall, and dehumidification pipe is regenerated, and has guaranteed that dehumidification pipe outer wall does not accumulate excess moisture.
S160: reflux pump is discharged the damp atmosphere after contacting with the outer wall of dehumidification pipe.
Reflux pump is by the atmosphere in continuous Exhaust Gas return flow line, guaranteed that the pressure perseverance of gas backstreaming passage is greater than the pressure of the gas passage that dehumidifies, thereby make the dew point of gas backstreaming passage lower than the dew point of dehumidifying gas passage, gas backstreaming passage contacts with dehumidification pipe outer wall, dehumidifying gas passage is the part between dehumidification pipe inwall, so produced dew point potential difference between dehumidification pipe inside and outside wall, the dew point potential difference between dehumidification pipe inside and outside wall has caused moisture to dehumidification pipe outer wall, to continue diffusion by dehumidification pipe inwall.
The process flow diagram that is illustrated in figure 2 atmosphere dehumanization method the second embodiment provided by the invention, the method comprises the following steps:
S210: the atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying;
Wherein, dehumidifying tube wall is a permeable membrane, and dehumidification pipe is arranged in dehydrating unit housing, forms a gas backstreaming passage between dehydrating unit housing and dehumidification pipe outer wall;
S220: the moisture in permeable membrane absorption atmosphere, the moisture of permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
Because the pressure of gas backstreaming passage is greater than the pressure of the gas passage that dehumidifies, thus the dew point of gas backstreaming passage lower than the dew point of dehumidifying gas passage, thereby cause the moisture of permeable membrane absorption by the inwall of dehumidification pipe, to be diffused to the outer wall of dehumidification pipe.
S230 a: humidity sensor that is arranged on dehumidification pipe end is measured in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording is sent to a controller, and controller is according to the operating power of the humidity value control reflux pump receiving;
Wherein, the humidity value receiving when controller is when setting humidity value, and the operating power of controller control reflux pump raises, and the humidity value receiving when controller is when setting humidity value, and the operating power of controller control reflux pump reduces;
S240: use sampling pump to gather the dry atmosphere after dehumidification pipe dehumidifying of ormal weight;
The end of dehumidification pipe is provided with a dehumidification pipe first and exports, and dehumidification pipe the first outlet connects sampling pump, the gas sample that dry atmosphere that sampling pump gathers detects as air quality concentration.
S250: the residue dry atmosphere after dehumidification pipe dehumidifying is refluxed and entered in gas backstreaming passage;
Sampling pump gathers a certain amount of dry atmosphere as gas sample, and all the other dry atmospheres reflux and enter in gas backstreaming passage through a recirculatory pipe being connected between dehumidification pipe end and gas backstreaming passage;
S260: the dry atmosphere in gas backstreaming passage contacts with the outer wall of dehumidification pipe, takes away the moisture on dehumidification pipe outer wall;
Dry atmosphere in gas backstreaming passage is taken away the moisture on dehumidification pipe outer wall, and dehumidification pipe is regenerated, and has guaranteed that dehumidification pipe outer wall does not accumulate excess moisture.
S270: reflux pump is discharged the damp atmosphere after contacting with the outer wall of dehumidification pipe.
Reflux pump is by the atmosphere in continuous Exhaust Gas return flow line, guaranteed that the pressure perseverance of gas backstreaming passage is greater than the pressure of the gas passage that dehumidifies, thereby make the dew point of gas backstreaming passage lower than the dew point of dehumidifying gas passage, gas backstreaming passage contacts with dehumidification pipe outer wall, dehumidifying gas passage is the part between dehumidification pipe inwall, so produced dew point potential difference between dehumidification pipe inside and outside wall, the dew point potential difference between dehumidification pipe inside and outside wall has caused moisture to dehumidification pipe outer wall, to continue diffusion by dehumidification pipe inwall.
In addition, due to the control of controller to reflux pump operating power, cause when the operating power of reflux pump raises, the speed that gas is discharged by gas backstreaming passage increases, pressure differential between gas backstreaming passage and dehumidifying gas passage is increased, and increased by the moisture that dehumidification pipe inwall diffuses to dehumidification pipe outer wall, when the operating power of reflux pump reduces, the Speed Reduction that gas is discharged by gas backstreaming passage, gas backstreaming passage and the pressure differential of dehumidifying between gas passage reduce, and are reduced by the outer wall moisture that dehumidification pipe inwall diffuses to dehumidification pipe.
Be illustrated in figure 3 the sectional view of atmosphere dehydrating unit the first embodiment provided by the invention, wherein, arrow represent air flow to, the atmosphere dehydrating unit that the present embodiment provides comprises: housing 1, dehumidification pipe 2, recirculatory pipe 3, sampling pump 4, reflux pump 5, wherein,
The outer wall of housing 1 is provided with a reflux gas entrance 11 and reflux gas outlet 12, housing 1 surround on dehumidification pipe 2 except dehumidification pipe entrance 8, dehumidification pipe first export 9 and dehumidification pipe second export 10 remainder, between the outer wall of the inwall of housing 1 and dehumidification pipe 2, form a gas backstreaming channel C 2, the dry atmosphere that gas backstreaming channel C 2 flows into for introducing recirculatory pipe 3, dry atmosphere contact dehumidification pipe outer wall 7 is also taken away after diffusing to the moisture of dehumidification pipe outer wall 7 by dehumidification pipe inwall 6 and is discharged through reflux gas outlet 12;
The two ends of recirculatory pipe 3 respectively with dehumidification pipe second export 10 and the reflux gas entrance 11 of housing outer wall be connected, recirculatory pipe 3 is for passing back into gas backstreaming channel C 2 by a part of dry atmosphere after dehumidification pipe 2 dehumidifies;
Be illustrated in figure 4 the sectional view of atmosphere dehydrating unit the second embodiment provided by the invention, the present embodiment is on the basis of the first embodiment, to have increased by a constant humidity control loop, this constant humidity control loop is being set below humidity value for the moisture stable of controlling the atmosphere after dehumidification pipe dehumidifying, and this constant humidity control loop makes atmosphere dehydrating unit upgrade to constant-moisture device.Constant humidity control loop comprises a humidity sensor 13 and a controller 14, wherein, humidity sensor 13 is arranged on the end of dehumidification pipe 2, for measuring in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording being sent to controller 14, controller 14 is connected with humidity sensor 13 and reflux pump 5 respectively, the operating power of the humidity value control reflux pump 5 that controller 14 receives for basis, the humidity value receiving when controller 14 is when setting humidity value, the operating power that controller 14 is controlled reflux pump 5 raises, the humidity value receiving when controller 14 is when setting humidity value, the operating power that controller 14 is controlled reflux pump 5 reduces.Remaining part and function are all identical with the first embodiment, therefore repeat no more.
Be illustrated in figure 5 the sectional view of atmosphere dehydrating unit the 3rd embodiment provided by the invention, the present embodiment be on the basis of the second embodiment, dehumidification pipe 2 is improved to the dehumidification pipe combination 2 that formed by two dehumidification pipes that are parallel to each other vertically ', this significantly improves the dehumidification rate of atmosphere dehydrating unit and dehumidifying effect, in addition, also can need further to increase multiple dehumidification pipes in housing 1 according to real atmosphere dehumidifying.Be different from above-mentioned the first and second embodiment, two dehumidification pipes in the present embodiment comprise respectively a dehumidification pipe entrance 15 and dehumidification pipe outlet 16.For the ease of dehumidification pipe combination 2 ' atmosphere input and output, the atmosphere dehydrating unit that the present embodiment provides is provided with dehumidification pipe buncher A and dehumidification pipe buncher B, wherein, dehumidification pipe buncher A is arranged on dehumidification pipe entrance 15 places, comprise a gas access A1 and two dehumidification pipe connectivity port A2, wherein, gas access A1 is for receiving the atmosphere that need to dehumidify, two dehumidification pipe connectivity port A2 are connected with two dehumidification pipe entrances 15 respectively, for the atmosphere that needs are dehumidified, cause respectively two dehumidifying gas passage C1, dehumidification pipe buncher B is arranged on dehumidification pipe and exports 16 places, comprise two dehumidification pipe connectivity port B1, one gas vent B2 and a return port B3, wherein, two dehumidification pipe connectivity port B1 are connected with two dehumidification pipe outlets 16 respectively, for the dry atmosphere after two dehumidification pipes 2 dehumidify is caused to the second buncher B, gas vent B2 is connected with sampling pump 4, sampling pump 4 is for introducing mass concentration monitoring equipment by the dry atmosphere after two dehumidification pipe dehumidifying, return port B3 is connected with recirculatory pipe 3, recirculatory pipe 3 is for passing back into gas backstreaming channel C 2 by a part of dry atmosphere after two dehumidification pipes 2 dehumidify.Humidity sensor 12 in the present embodiment is connected with buncher B, for measuring in real time the humidity of the atmosphere after 2 dehumidifying of two dehumidification pipes and the humidity value recording being sent to controller 14.Remaining part and function are all identical with the second embodiment, therefore repeat no more.
Atmosphere dehumanization method provided by the invention and device have overcome the defect of traditional heating dehumanization method, the damage that can effectively avoid heating and dehumidification process to cause particulate in atmosphere, and can avoid the impact of atmospheric humidity factor on air quality concentration monitor, be more suitable for harmless air quality surveillance and use, more energy-conserving and environment-protective.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can be described and be distributed in the device of embodiment according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (10)
1. an atmosphere dehumanization method, is characterized in that, the method comprises the following steps:
The atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying, wherein, described dehumidifying tube wall is a permeable membrane, described dehumidification pipe is arranged in dehydrating unit housing, between described dehydrating unit housing and described dehumidification pipe outer wall, forms a gas backstreaming passage;
Moisture in described permeable membrane absorption atmosphere, the moisture of described permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
Use sampling pump to gather the dry atmosphere after described dehumidification pipe dehumidifying of ormal weight;
Residue dry atmosphere after described dehumidification pipe dehumidifying is refluxed and entered in described gas backstreaming passage;
Dry atmosphere in described gas backstreaming passage contacts with the outer wall of described dehumidification pipe, takes away the moisture on described dehumidification pipe outer wall;
Described reflux pump is discharged the damp atmosphere after contacting with the outer wall of described dehumidification pipe, to keep the pressure perseverance of described gas backstreaming passage to be greater than the pressure of described dehumidifying gas passage, thereby make the moisture of described permeable membrane absorption by the inwall of dehumidification pipe, be continued to diffuse to the outer wall of dehumidification pipe.
2. an atmosphere dehumanization method, is characterized in that, the method comprises the following steps:
The atmosphere of needs dehumidifying is introduced to the dehumidifying gas passage between dehumidification pipe inwall, the inwall of dehumidification pipe is contacted with the atmosphere that needs dehumidifying, wherein, described dehumidifying tube wall is a permeable membrane, described dehumidification pipe is arranged in dehydrating unit housing, between described dehydrating unit housing and described dehumidification pipe outer wall, forms a gas backstreaming passage;
Moisture in described permeable membrane absorption atmosphere, the moisture of described permeable membrane absorption is diffused to the outer wall of dehumidification pipe by the inwall of dehumidification pipe;
One humidity sensor that is arranged on described dehumidification pipe end is measured in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording is sent to a controller, described controller is according to the operating power of reflux pump described in the humidity value control receiving, the humidity value receiving when controller is when setting humidity value, the operating power of described controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, and the operating power of described controller control reflux pump reduces;
Use sampling pump to gather the dry atmosphere after described dehumidification pipe dehumidifying of ormal weight;
Residue dry atmosphere after described dehumidification pipe dehumidifying is refluxed and entered in described gas backstreaming passage;
Dry atmosphere in described gas backstreaming passage contacts with the outer wall of described dehumidification pipe, takes away the moisture on described dehumidification pipe outer wall;
Described reflux pump is discharged the damp atmosphere after contacting with the outer wall of described dehumidification pipe, due to the control of controller to reflux pump operating power, cause when the operating power of reflux pump raises, the speed that gas is discharged by gas backstreaming passage increases, pressure differential between described gas backstreaming passage and described dehumidifying gas passage is increased, and increased by the moisture that dehumidification pipe inwall diffuses to dehumidification pipe outer wall, when the operating power of reflux pump reduces, the Speed Reduction that gas is discharged by gas backstreaming passage, pressure differential between described gas backstreaming passage and described dehumidifying gas passage reduces, and reduced by the outer wall moisture that dehumidification pipe inwall diffuses to dehumidification pipe.
3. an atmosphere dehydrating unit, is characterized in that, comprising: dehumidification pipe, sampling pump, housing, recirculatory pipe, reflux pump, wherein,
Described dehumidification pipe is hollow tubular, between described dehumidification pipe inwall, form a dehumidifying gas passage, described dehumidifying tube wall is a permeable membrane, described permeable membrane is for diffusing to dehumidification pipe outer wall by the moisture of the atmosphere of dehumidification pipe inwall absorption by dehumidification pipe inwall, the moisture that described dehumidification pipe is used for adsorbing atmosphere is to obtain dry atmosphere, the two ends of described dehumidification pipe are respectively equipped with a dehumidification pipe entrance and a dehumidification pipe first exports, the side of described dehumidification pipe is provided with a dehumidification pipe second and exports, wherein, described dehumidification pipe entrance is for receiving the atmosphere that need to dehumidify, described dehumidification pipe the first outlet is for being drained to described sampling pump by the dry atmosphere after described dehumidification pipe dehumidifying, described dehumidification pipe the second outlet is connected with described recirculatory pipe, for the dry atmosphere refluxing after described dehumidification pipe dehumidifying,
Described sampling pump is connected with described dehumidification pipe the first outlet, for the dry atmosphere after described dehumidification pipe dehumidifying is introduced to mass concentration monitoring equipment;
The outer wall of described housing is provided with a reflux gas entrance and reflux gas outlet, described housing surrounds on described dehumidification pipe except described dehumidification pipe entrance, dehumidification pipe first exports and dehumidification pipe second exports remainder, between the inwall of described housing and the outer wall of described dehumidification pipe, form a gas backstreaming passage, the dry atmosphere that described gas backstreaming passage flows into for introducing described recirculatory pipe, described dry atmosphere contacts described dehumidification pipe outer wall and takes away after diffusing to the moisture of dehumidification pipe outer wall by dehumidification pipe inwall and discharge through described reflux gas outlet;
The two ends of described recirculatory pipe are connected with the reflux gas entrance of described dehumidification pipe the second outlet and described housing outer wall respectively, and described recirculatory pipe is for passing back into described gas backstreaming passage by a part of dry atmosphere after dehumidification pipe dehumidifying;
Described reflux pump is connected with the reflux gas outlet of described housing outer wall, and described reflux pump is for discharging the gas of discharging from described reflux gas outlet.
4. atmosphere dehydrating unit according to claim 3, is characterized in that, the section of described housing and described dehumidification pipe is rectangle, and the section axis of described housing overlaps with the section axis of described dehumidification pipe.
5. atmosphere dehydrating unit according to claim 3, is characterized in that, described permeable membrane is the airtight absorbent material film of the special type take sulfonic group as carrier.
6. according to the arbitrary described atmosphere dehydrating unit of claim 3-5, it is characterized in that, further comprise a constant humidity control loop, described constant humidity control loop is stabilized in below setting humidity value for controlling the humidity value of the atmosphere after described dehumidification pipe dehumidifying, described constant humidity control loop comprises a humidity sensor and a controller, wherein, described humidity sensor is arranged on described dehumidification pipe end, for measuring in real time the humidity of the atmosphere after dehumidification pipe dehumidifying and the humidity value recording being sent to described controller, described controller is connected with described humidity sensor and described reflux pump respectively, described controller is for the operating power of reflux pump described in the basis humidity value control receiving, the humidity value receiving when controller is when setting humidity value, the operating power of described controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, the operating power of described controller control reflux pump reduces.
7. an atmosphere dehydrating unit, is characterized in that, comprising: multiple dehumidification pipes, the first buncher, the second buncher, sampling pump, housing, recirculatory pipe, reflux pump, wherein,
Multiple described dehumidification pipes are hollow tubular, each dehumidifying gas passage that forms between multiple described dehumidification pipe inwalls, the tube wall of multiple described dehumidification pipes is a permeable membrane, described permeable membrane is for diffusing to dehumidification pipe outer wall by the moisture of the atmosphere of dehumidification pipe inwall absorption by dehumidification pipe inwall, the moisture that multiple described dehumidification pipes are used for adsorbing atmosphere is to obtain dry atmosphere, the two ends of multiple described dehumidification pipes are respectively equipped with a dehumidification pipe entrance and dehumidification pipe outlet, wherein, described dehumidification pipe entrance is connected with described the first buncher, described dehumidification pipe outlet is connected with described the second buncher,
Described the first buncher comprises a gas access and multiple dehumidification pipes connectivity port, wherein, described gas access is for receiving the atmosphere that need to dehumidify, multiple described dehumidification pipes connectivity port is connected with multiple described dehumidification pipe entrances respectively, for the atmosphere that needs are dehumidified, causes respectively multiple described dehumidifying gas passages;
Described the second buncher comprises multiple dehumidification pipes connectivity port, a gas vent and a return port, wherein, multiple described dehumidification pipes connectivity port is connected with multiple described dehumidification pipe outlets respectively, for the dry atmosphere after multiple described dehumidification pipe dehumidifying is caused to described the second buncher, described gas vent is connected with described sampling pump, and described return port is connected with described recirculatory pipe;
Described sampling pump is connected with the gas vent of described the second buncher, for the dry atmosphere after multiple described dehumidification pipe dehumidifying is introduced to mass concentration monitoring equipment;
The outer wall of described housing is provided with a reflux gas entrance and reflux gas outlet, described housing surrounds the remainder except described dehumidification pipe entrance, dehumidification pipe outlet on multiple described dehumidification pipes, between the inwall of described housing and the outer wall of multiple described dehumidification pipes, form a gas backstreaming passage, the dry atmosphere that described gas backstreaming passage flows into for introducing described recirculatory pipe, described dry atmosphere contacts described dehumidification pipe outer wall and takes away after diffusing to the moisture of dehumidification pipe outer wall by dehumidification pipe inwall and discharge through described reflux gas outlet;
The two ends of described recirculatory pipe are connected with the return port of described the second buncher and the reflux gas entrance of described housing outer wall respectively, and described recirculatory pipe is for passing back into described gas backstreaming passage by a part of dry atmosphere after multiple described dehumidification pipe dehumidifying;
Described reflux pump is connected with the reflux gas outlet of described housing outer wall, and described reflux pump is for discharging the gas of discharging from described reflux gas outlet.
8. atmosphere dehydrating unit according to claim 7, is characterized in that, the section of described housing and described dehumidification pipe is rectangle, and the axis of described housing is parallel with the section axis of multiple described dehumidification pipes.
9. atmosphere dehydrating unit according to claim 7, is characterized in that, described permeable membrane is the airtight absorbent material film of the special type take sulfonic group as carrier.
10. according to the arbitrary described atmosphere dehydrating unit of claim 7-9, it is characterized in that, further comprise a constant humidity control loop, described constant humidity control loop is stabilized in below setting humidity value for controlling the humidity value of the atmosphere after described dehumidification pipe dehumidifying, described constant humidity control loop comprises a humidity sensor and a controller, wherein, described humidity sensor is connected with described the second buncher, for measuring in real time the humidity of the atmosphere after multiple described dehumidification pipe dehumidifying and the humidity value recording being sent to described controller, described controller is connected with described humidity sensor and described reflux pump respectively, described controller is for the operating power of reflux pump described in the basis humidity value control receiving, the humidity value receiving when controller is when setting humidity value, the operating power of described controller control reflux pump raises, the humidity value receiving when controller is when setting humidity value, the operating power of described controller control reflux pump reduces.
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