CN212757949U - Zero-gas-consumption compression heat regeneration adsorption type dryer - Google Patents

Abstract

The utility model discloses a zero gas consumption compression heat regeneration adsorption dryer, including the twin-tower drying system who connects the air supply, twin-tower drying system is including the forward-type filtration subassembly that is provided with the filtration passageway, forward-type filtration subassembly intercommunication air supply and twin-tower drying system, be provided with the multistage formula adsorbed layer on the filtration passageway, the multistage formula adsorbed layer is composite construction, the multistage formula adsorbed layer is along filtering passageway inner wall axial spiral setting. Through set up air filter component at the desiccator position of admitting air, utilize the spiral adsorbed layer on the filtration passageway to carry out multistage formula edulcoration filtration to compressed air. The utility model provides a zero gas consumption compression heat regeneration adsorption dryer compact structure, leading edulcoration effect is obvious, and overall stability is good, durable.

Description

Zero-gas-consumption compression heat regeneration adsorption type dryer

Technical Field

The utility model belongs to the technical field of gas purification drying technique and specifically relates to a zero gas consumption compression heat regeneration adsorption dryer is related to.

Background

The drying device for preparing low dew point compressed air in the prior art mainly comprises a heatless regeneration adsorption type dryer, a micro-heating regeneration adsorption type dryer, a freezing adsorption combined dryer, a compression heat regeneration adsorption type dryer and a blast regeneration adsorption type dryer, wherein the compression heat regeneration adsorption type dryer has the special advantages of small pressure loss, small regeneration air consumption, low comprehensive energy consumption, low operation cost and the like compared with other types of adsorption type dryers, and is more and more emphasized by an air pressure station design unit and an air using department.

The zero gas consumption mode in the compression heat regeneration adsorption type dryer is gradually increased in market share in recent years, the novel dryer directly heats the adsorbent in the drying tower in the adsorption process by utilizing the heat of high-temperature air discharged by an air compressor, so that the adsorbent is thoroughly dehydrated and regenerated, and the energy is saved to the greatest extent because no gas is consumed in the heating and regeneration process. However, this type of dryer also has a problem that the high-temperature air desorbs the drying agent and at the same time contains dust and oil stains. Impurities such as water vapor and the like are mixed into the adsorbent and influence the service life of the adsorbent, and an impurity filtering device on a current dryer is arranged at an outlet of a drying tower, for example, the impurity filtering device is a combined dryer with heat recovery and zero gas consumption negative pressure regeneration disclosed in Chinese patent literature, and the publication number of the impurity filtering device is 'CN 204182272U', and the combined dryer comprises a freezing dryer and an adsorption dryer which are connected, wherein the freezing dryer comprises a pre-cooler, a condenser, a heat exchanger, an evaporator, a steam-water separator and a compressor for compressing and recycling a refrigerant, an outlet of the condenser is connected to a thermal expansion valve through a drying filter after passing through an outlet temperature raising device arranged in the heat exchanger, the thermal expansion valve is connected to the compressor through a refrigerant circulating system, and an outlet of the compressor is connected to an inlet of the condenser through a heat energy recovery; the adsorption dryer comprises an adsorption tower and a regeneration tower, the adsorption tower is connected with the regeneration tower through two groups of pneumatic butterfly valves, the first group of pneumatic butterfly valves comprise valves V1, V2, V3 and V4 which are connected in parallel, the second group of pneumatic butterfly valves comprise valves V5, V6, V7 and V8 which are connected in parallel, the first group of pneumatic butterfly valves are connected with a dry air outlet, the dry air outlet is connected to a heat exchanger through a rear precision filter, the second group of pneumatic butterfly valves are connected to a compressed air pipeline, the compressed air inlet pipeline is connected to an inlet pipe separator through a front precision filter, and a vacuum pump is connected between the valve V5 and the valve V6 on the second group of pneumatic butterfly valves; the heat energy recovery device is connected to the outlet of the drying gas through the valve V13 and the adsorption tower, a valve V12 is connected in parallel to the heat energy recovery device and the valve V13, and the valve V12 after the parallel connection is connected to a filter screen. Although the device filters dust from the finished dry gas through the filter screen, the quality of the finished gas is ensured to a certain extent, but impurities in the compressed gas have certain influence on the drying tower and all parts, so that the front-mounted dust removal filter device is required to protect all parts of the zero-gas-consumption compression heat regeneration adsorption dryer.

Disclosure of Invention

To the present technology who mentions among the background art desiccator lack the forward type gas filtration device, lead to the multiple impurity of gaseous gathering in the adsorption tower, long-term use influences the problem of absorption granule life in the adsorption tower, the utility model provides a zero gas consumption compression heat regeneration adsorption dryer sets up forward type air filter component through the position of admitting air at the desiccator, utilizes the multistage formula adsorbed layer on the filtration passageway to carry out multistage formula edulcoration to compressed air and filters. The utility model provides a zero gas consumption compression heat regeneration adsorption dryer compact structure, leading edulcoration effect is obvious, and overall stability is good, durable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a zero gas consumption compression heat regeneration adsorption dryer, is including the twin-tower drying system who connects the air supply, twin-tower drying system is including the forward-mounted air filter component who is provided with the filtration passageway, forward-mounted air filter component intercommunication air supply and twin-tower drying system, be provided with the multistage adsorbed layer on the filtration passageway, the multistage adsorbed layer is composite construction, the multistage adsorbed layer sets up along filtering passageway inner wall axial spiral. When compressed gas passes through the filtering channel, the multi-stage adsorption layer on the front-mounted air filtering component can fully adsorb impurities in the gas, and the multi-stage adsorption layer can adsorb the impurities in the gas for multiple times in the advancing process of the gas, so that the adsorption effect is effectively improved; the multiple-stage adsorption layer of composite construction possesses the filter material of multiple material, can carry out multiple absorption to the impurity of the different grade type in the air supply, like impurity such as moisture, greasy dirt and solid particulate matter, ensures that the gas that gets into double-tower drying system is comparatively pure, reduces the pollution of impurity to double-tower drying system from this, improves double-tower drying system inside adsorption particle's life.

Preferably, the multistage adsorption layer is arranged spirally along the axial direction of the inner wall of the filtering channel, a spiral mounting groove is formed in the inner wall of the filtering channel, and the multistage adsorption layer is detachably connected to the spiral mounting groove. Multistage formula adsorbed layer demountable installation can dismantle in spiral mounting groove, can dismantle fast after the saturation of multistage formula adsorbed layer, and then conveniently change.

Preferably, the multi-stage adsorption layer comprises a microporous layer, a water absorption layer and an oil absorption layer, and the microporous layer, the water absorption layer and the oil absorption layer are arranged in parallel along the extending direction of the spiral mounting groove. The multistage adsorbed layer of combined type structure possesses multiple functions, can fully filter dust, moisture and the greasy dirt in the gas. The micro-porous layer can effectively adsorb impurities such as dust, the water absorption layer is used for drying the compressed gas before desorption, and the oil absorption layer can effectively absorb oil stains in the compressed gas, so that various impurities in the compressed gas are effectively filtered.

Preferably, the microporous layer is an activated carbon particle product; the water absorbing layer is a silica gel film workpiece; the oil absorption layer is a polypropylene fiber product. The activated carbon layer can utilize its porous structure to carry out effective absorption to the dust, silica gel is porous structure, and has better water absorption performance, polypropylene then has stronger hydrophobicity, has better adsorption efficiency to the greasy dirt simultaneously, and the adsorbed layer of consequently different materials can filter respectively the impurity in the compressed air to obtain complete filter effect.

Preferably, the twin-tower drying system further comprises a drying tower set, the front-mounted air filtering component is provided with an air inlet and an air outlet, and the air outlet is communicated with the drying tower set. The front-mounted air filtering component is arranged at the air inlet of the double-tower drying system, and can be used for carrying out front-mounted filtering on compressed air which just enters the zero-air-consumption compression heat regeneration adsorption type drying machine, so that each part of the double-tower drying system is prevented from being damaged by gas impurities, and the service life of each part is shortened.

Preferably, the multi-stage adsorption layer is of a multi-stage structure and comprises a hydrophobic dust removal part arranged close to the air inlet of the front-mounted air filtering component and a water absorption part arranged close to the air outlet. The multistage adsorption layer segmentation is provided with the adsorption layer of different materials, set up and to carry out effective filtration to solid impurity such as dust in the gas in the hydrophobic dust removal portion of inlet port department, treat that solid impurity in the gas obtains the filtration back basically, gaseous arrival is close to the portion of absorbing water of gas outlet position, the portion of absorbing water can separate the moisture in the gas, set up the portion of absorbing water in hydrophobic dust removal portion rear, the caking phenomenon that appears when can effectively avoiding directly adsorbing the solid impurity who contains moisture, thereby avoid the impurity piece of condensation to block up multistage adsorption layer, and then can effectively improve the life of multistage adsorption layer.

Preferably, the hydrophobic dust removing part is made of polypropylene. The hydrophobic dust removal part made of the polypropylene material has the characteristics of high porosity and large pollutant carrying capacity, has extremely high hydrophobicity, can avoid the phenomenon of dirt agglomeration caused by simultaneous adsorption of solid impurities and water, and ensures that the solid impurities in the gas are effectively filtered after being separated from the water.

Therefore, the utility model discloses following beneficial effect has: (1) the front-mounted air filtering component is arranged at the air inlet position of the dryer, and a multi-stage adsorption layer on a filtering channel is utilized to carry out multi-stage impurity removal and filtration on compressed air; (2) the multi-stage adsorption layer is detachably arranged in the spiral mounting groove, and can be quickly detached after being saturated, so that the multi-stage adsorption layer is convenient to replace; (3) the micro-porous layer can effectively adsorb impurities such as dust and the like, the water absorbing layer is used for drying the compressed gas before desorption, and the oil absorbing layer can effectively absorb oil stains in the compressed gas, so that various impurities in the compressed gas are effectively filtered; (4) the water absorption part is arranged behind the water-repellent dust removal part, so that the caking phenomenon caused when solid impurities containing water are directly absorbed can be effectively avoided, the condensed impurity blocks are prevented from blocking the multi-stage adsorption layer, and the service life of the multi-stage adsorption layer can be effectively prolonged; (5) the utility model discloses a compressor exhaust pipe subassembly compact structure, the filter effect is obvious, and overall stability is good, durable.

Drawings

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

Fig. 2 is a sectional view of a front type air filter module according to embodiment 1.

FIG. 3 is a sectional view of a front mount air filter assembly according to example 2.

In the figure: 1. the double-tower type drying system comprises a double-tower type drying system 11, a first adsorption tower 12, a second adsorption tower 13, an air inlet part 14, an air inlet check valve 15, an air inlet pipeline air inlet adjusting valve 2, a front-mounted air filtering component 21, a filtering channel 22, an air inlet 23, an air outlet 3, a multi-stage adsorption layer 31, a microporous layer 32, a water absorbing layer 33, an oil absorbing layer 4, a water absorbing part 5, a hydrophobic dust removing part 6, an air inlet pipeline 7 and an air outlet pipeline.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

As shown in fig. 1 and 2, the zero-gas-consumption compression heat regeneration adsorption dryer comprises a double-tower drying system 1 connected with a gas source, wherein the double-tower drying system 1 comprises a front-mounted air filtering component 2 provided with a filtering channel 21, the front-mounted air filtering component is communicated with the gas source and the double-tower drying system 1, a multi-stage adsorption layer 3 is arranged on the filtering channel 21, and the multi-stage adsorption layer 3 is of a composite structure. When compressed gas passes through the filtering channel, the multi-stage adsorption layer on the front-mounted air filtering component can fully adsorb impurities in the gas, and the multi-stage adsorption layer can adsorb the impurities in the gas for multiple times in the advancing process of the gas, so that the adsorption effect is effectively improved; the multiple-stage adsorption layer of composite construction possesses the filter material of multiple material, can carry out multiple absorption to the impurity of the different grade type in the air supply, like impurity such as moisture, greasy dirt and solid particulate matter, ensures that the gas that gets into double-tower drying system is comparatively pure, reduces the pollution of impurity to double-tower drying system from this, improves double-tower drying system inside adsorption particle's life.

The twin tower drying system 1 in this embodiment is similar to a drying system in a conventional zero gas consumption compression heat regeneration adsorption dryer, and includes a first adsorption tower 11 and a second adsorption tower 12. Two adsorption tower tops are connected through an inlet duct 6, inlet duct's middle part is equipped with inlet portion 13 and two check valves 14 that admit air, and two check valves that admit air set up in inlet portion 13 both sides, and two adsorption tower bottoms are connected through an outlet duct 7, outlet duct 7 middle part is equipped with outlet portion and two check valves that give vent to anger, and two outlet check valves set up in outlet portion both sides, and two adsorption tower tops are connected with forward type air filter component through inlet duct 6 respectively, the last inlet duct governing valve 15 that admits air that is equipped with of inlet duct 6, forward type air filter component is connected with the air compressor machine. The air source of the zero-gas-consumption compression heat regeneration adsorption dryer is high-temperature compressed gas output by the air compressor, and the high-temperature compressed gas is used for heating adsorption particles in the first adsorption tower or the second adsorption tower to achieve the purpose of desorption, so that dehydration regeneration of the adsorption particles is realized, and the energy-saving effect is remarkable.

Be provided with spiral mounting groove on the filtration passageway inner wall, the multistage formula adsorbed layer can be dismantled and connect in spiral mounting groove. Multistage formula adsorbed layer demountable installation can dismantle in spiral mounting groove, can dismantle fast after the saturation of multistage formula adsorbed layer, and then conveniently change.

The multi-stage adsorption layer is of a composite structure and comprises a microporous layer 31, a water absorption layer 32 and an oil absorption layer 33, wherein the microporous layer, the water absorption layer and the oil absorption layer are arranged in parallel along the extending direction of the spiral mounting groove. The multistage adsorbed layer of combined type structure possesses multiple functions, can fully filter dust, moisture and the greasy dirt in the gas. The micro-porous layer can effectively adsorb impurities such as dust, the water absorption layer is used for drying the compressed gas before desorption, and the oil absorption layer can effectively absorb oil stains in the compressed gas, so that various impurities in the compressed gas are effectively filtered.

The microporous layer is an activated carbon particle product; the water absorbing layer is a silica gel film workpiece; the oil absorption layer is a polypropylene fiber part microporous layer (31) which is an activated carbon particle part; the water absorbing layer (32) is a silica gel film part; the oil absorption layer (33) is a polypropylene fiber product. The activated carbon layer can utilize its porous structure to carry out effective absorption to the dust, silica gel is porous structure, and has better water absorption performance, polypropylene then has stronger hydrophobicity, has better adsorption efficiency to the greasy dirt simultaneously, and the adsorbed layer of consequently different materials can filter respectively the impurity in the compressed air to obtain complete filter effect.

The double-tower drying system further comprises a drying tower set, the front-mounted air filtering component is provided with an air inlet 22 and an air outlet 23, and the air outlet is communicated with the drying tower set. The front-mounted air filtering component is arranged at the air inlet of the double-tower drying system, and can be used for carrying out front-mounted filtering on compressed air which just enters the zero-air-consumption compression heat regeneration adsorption type drying machine, so that each part of the double-tower drying system is prevented from being damaged by gas impurities, and the service life of each part is shortened.

The utility model discloses an operating condition as follows: after high-temperature compressed gas from an air compressor enters the double-tower drying system from the air inlet, the front-mounted air filtering component starts to filter the compressed gas, the tail part of the filtering channel is provided with a filtering layer, and the filtering layer is internally provided with activated alumina, so that the gas passing through the filtering channel can be effectively filtered. And before gas reachd the filtering layer, need pass through the multistage adsorbed layer, be provided with the micropore layer of active carbon material, the oil absorption layer of absorbing water layer and the polypropylene material of silica gel material on the multistage adsorbed layer side by side, the spiral is collected the adsorbed layer and is contacted rather than many times on the route that gas gos forward, and the contact all can adsorb the filtration to the impurity of gaseous inside at every turn, and when gas reachd active alumina filtering layer department, most impurity that it contained has been filtered, and multistage adsorbed layer makes compressed gas be the rotation type state of advancing simultaneously, improves the degree of aggregation of impurity in the multistage adsorbed layer for the remaining impurity that is not filtered by the multistage adsorbed layer can fully be absorbed by the filtering layer. The high-temperature compressed gas passing through the preposed air filtering component is filtered and then enters the drying tower, and the adsorbent in the drying tower is desorbed, so that a clean and energy-saving operation mode of the zero-gas-consumption compression heat regeneration dryer is realized.

Example 2

As shown in fig. 3, unlike embodiment 1, the multi-stage adsorption layer in this embodiment has a multi-stage structure, and includes a hydrophobic dust-removing part 5 disposed near the air inlet of the front-mounted air filter assembly and a water-absorbing part 4 disposed near the air outlet. The multistage adsorption layer segmentation is provided with the adsorption layer of different materials, set up and to carry out effective filtration to solid impurity such as dust in the gas in the hydrophobic dust removal portion of inlet port department, take the solid impurity in the gas to obtain basically filtering the back, gaseous arrival is close to the portion of absorbing water of gas outlet position, the portion of absorbing water can separate the moisture in the gas, set up the portion of absorbing water in hydrophobic dust removal portion rear, the caking phenomenon that appears when can effectively avoiding directly adsorbing the solid impurity who contains moisture, thereby avoid the impurity piece of condensation to block up multistage adsorption layer, and then can effectively improve the life of multistage adsorption layer.

The hydrophobic dust removal part is made of polypropylene. The hydrophobic dust removal part made of the polypropylene material has the characteristics of high porosity and large pollutant carrying capacity, has extremely high hydrophobicity, can avoid the phenomenon of dirt agglomeration caused by simultaneous adsorption of solid impurities and water, and ensures that the solid impurities in the gas are effectively filtered after being separated from the water.

In addition to the above embodiments, the technical features of the present invention can be re-selected and combined within the scope of the present invention as disclosed in the claims and the specification to constitute new embodiments, which can be realized by those skilled in the art without any creative work, therefore, the embodiments of the present invention not described in detail should be considered as the specific embodiments of the present invention 52 and be within the protection scope of the present invention.

Claims (7)

1. The utility model provides a zero gas consumption compression heat regeneration adsorption dryer, is including twin-tower drying system (1) of connecting the air supply, its characterized in that, twin-tower drying system (1) is including leading formula air filter component (2) that are provided with filtration passageway (21), leading formula air filter component intercommunication air supply and twin-tower drying system (1), be provided with multistage adsorbed layer (3) on filtration passageway (21), multistage adsorbed layer (3) are composite construction, multistage adsorbed layer (3) are along filtration passageway (21) inner wall axial spiral setting.

2. The compression heat regeneration adsorption dryer with zero gas consumption as claimed in claim 1, wherein a spiral installation groove is arranged on the inner wall of the filtering channel (21), and the multi-stage adsorption layer (3) is detachably connected to the spiral installation groove.

3. The zero-gas-consumption compression heat regeneration adsorption dryer as claimed in claim 1, wherein the multi-stage adsorption layer (3) comprises a microporous layer (31), a water absorption layer (32) and an oil absorption layer (33), and the microporous layer (31), the water absorption layer (32) and the oil absorption layer (33) are arranged in parallel along the extension direction of the spiral installation groove.

4. The zero-gas-consumption compression heat regeneration adsorption dryer as claimed in claim 3, wherein the microporous layer (31) is a product of activated carbon particles; the water absorbing layer (32) is a silica gel film part; the oil absorption layer (33) is a polypropylene fiber product.

5. The zero-gas-consumption compression heat regeneration adsorption dryer as claimed in any one of claims 1 to 4, wherein the twin-tower drying system (1) further comprises a drying tower set, the front-mounted air filtering component (2) is provided with an air inlet (22) and an air outlet (23), and the air outlet (23) is communicated with the drying tower set.

6. The compression heat regeneration adsorption dryer with zero gas consumption as claimed in claim 5, wherein the multi-stage adsorption layer (3) is a multi-stage structure comprising a water absorption part (4) arranged close to the air inlet of the front air filter assembly (2) and a hydrophobic dust removal part (5) arranged close to the air outlet.

7. The zero-gas-consumption compression heat regeneration adsorption dryer as claimed in claim 6, wherein the hydrophobic dust-removing part (5) is made of polypropylene fiber.

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