CN212757948U

CN212757948U - Air-blast heating regeneration adsorption drying equipment

Info

Publication number: CN212757948U
Application number: CN202020915236.9U
Authority: CN
Inventors: 李斌; 许广辉
Original assignee: Hangzhou Shenbang Purifying Equipment Co ltd
Current assignee: Hangzhou Shenbang Purifying Equipment Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-03-23
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a blast air heating regeneration adsorption drying equipment, including two tower drying system and air-blast device, be provided with filtering component between two tower drying system and the air-blast device, the last spiral filtration passageway that is provided with of filtering component, spiral filtration passageway includes the inlet end and gives vent to anger the end, the inlet end communicates in the air-blast device, the end of giving vent to anger communicates in two tower drying system, be provided with the adsorbed layer on the spiral filtration passageway. The adsorption layer on the spiral filtering channel is used for carrying out attendant impurity removal and filtration on the compressed air, and the compressed air is contacted with the side wall of the spiral filtering channel at any time in the flowing process of the filtering channel so as to be filtered. The utility model provides a blast air heating regeneration adsorption drying equipment compact structure, leading filter assembly edulcoration effect is obvious, and overall stability is good, durable.

Description

Air-blast heating regeneration adsorption drying equipment

Technical Field

The utility model belongs to the technical field of gas purification drying technique and specifically relates to a blast air heating regeneration adsorption drying equipment is related to.

Background

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

The market share of the blast heating regeneration adsorption drying equipment is gradually improved in recent years, the novel dryer directly heats the adsorbent in the adsorption 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 effectively saved due to the fact that the air consumption is low in the heating 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 to influence the service life of the adsorbent, and an impurity filtering device on the existing dryer is arranged at the outlet of the adsorption tower, for example, the combined dryer with heat recovery and negative pressure regeneration disclosed in Chinese patent literature, the publication No. CN204182272U comprises a dryer body, the dryer body comprises a first carbon steel adsorption tower, a second carbon steel adsorption tower and a fixed seat, the tops of the first carbon steel adsorption tower and the second carbon steel adsorption tower are respectively provided with a first adsorption tower air outlet pipe and a second adsorption tower air outlet pipe, the total air outlet pipe is provided with a first precise filter and a second precise filter, the first adsorption tower air outlet pipe and the second adsorption tower air outlet pipe are both connected with a total air outlet pipe, the bottom of a connecting pipe is provided with a total air inlet pipe, the total air inlet pipe is provided with a third precise filter, the top of the connecting pipe is provided with a first adsorption tower, the first air inlet pipe of the adsorption tower is connected with the first carbon steel adsorption tower, the second air inlet pipe of the adsorption tower is connected with the second carbon steel adsorption tower, and exhaust silencers are arranged at two ends of the connecting pipe. Although the device filters gas through a plurality of precision filters, the quality of the product gas is guaranteed to a certain extent, but the pressure changes when the compressed gas passes through the plurality of filters in the circulating process, particularly, the circulation of each precision filter is reduced after long-term use, the flow rate and the pressure of the compressed gas are further disturbed, and the conditions all affect the normal operation efficiency of the whole drying device.

Disclosure of Invention

The gas filtering device to the desiccator among the prior art that mentions in the background art can cause compressed air's pressure and the disorderly problem of velocity of flow along with the increase of live time, the utility model provides a blast air heating regeneration adsorption drying equipment through set up filter assembly between twin-tower drying system and air-blast device, utilizes the adsorbed layer on the spiral filtration passageway to carry out the companion formula edulcoration to compressed air and filters, compressed air constantly contacts and then obtains filtering with spiral filtration passageway lateral wall at the flow in-process of filtration passageway. The utility model provides a blast air heating regeneration adsorption drying equipment compact structure, leading filter assembly 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 blast heating regeneration adsorption drying equipment, includes two tower drying system, including two tower drying system and air-blast device, be provided with filtering component between two tower drying system and the air-blast device, the last spiral filtration passageway that is provided with of filtering component, spiral filtration passageway includes the inlet end and gives vent to anger the end, the inlet end communicates in the air-blast device, give vent to anger the end and communicate in two tower drying system, be provided with the adsorbed layer on the spiral filtration passageway. The spiral extending direction setting of spiral filtration passageway inner wall is followed to the adsorbed layer, when compressed gas passes through spiral filtration passageway, according to its spiral structure direction of deflecting, the adsorbed layer on the filter assembly sets up in the outside of gas circulation route, and high-pressure draught can carry out effective impact to the adsorbed layer along the flow direction homoenergetic, and this makes gas and adsorbed layer fully contact, and then the adsorbed layer fully adsorbs the impurity in the gas, and this kind of adsorbed layer along with gas flow route is marchd the in-process and is continuously adsorbed to its inside impurity at gas, effectively improves adsorption effect.

Preferably, the spiral filtering channel is of a winding drum type structure, the outermost side of the spiral filtering channel is an air inlet end, the innermost side of the spiral filtering channel is an air outlet end, and the adsorption layer is arranged on the side wall of the spiral filtering channel. The reel structure of spiral filtration passageway has increased the area of adsorbed layer in finite space for gas can fully contact with the adsorbed layer of passageway lateral wall when flowing along the passageway again, has avoided traditional filter element formula adsorbed layer to obstruct the defect that gas flows in filtering work, and has effectively improved the filtration continuation degree when the spiral filtration passageway of gas path.

Preferably, the adsorption layer is detachably connected to the spiral filtration channel. Can follow the filter component tip of perpendicular to gas flow direction after the adsorbed layer saturation and dismantle the adsorbed layer fast, the work efficiency of filter component is effectively improved to convenient the change.

Preferably, the adsorption layer is a composite structure and comprises a microporous layer, a water absorption layer and an oil absorption layer, and the water absorption layer, the oil absorption layer and the microporous layer are arranged along the length direction of the spiral type filtering channel. Three kinds of adsorption structure on composite construction's the adsorbed layer can set gradually on spiral filtration passageway extending direction according to the order on layer, oil absorption layer and the micropore layer that absorbs water, composite construction's adsorbed layer 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 made of activated carbon; the water absorbing layer is made of silica gel; the oil absorption layer is made of polypropylene. 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 double-tower drying system comprises an adsorption tower set, the filter assembly is provided with an air inlet and an air outlet, the air outlet is communicated with the adsorption tower set, and the air inlet is connected with the air blowing device. The filter assembly is arranged at the air inlet of the double-tower drying system, compressed air which enters the double-tower drying system after being heated by the air blower can be subjected to pre-filtration, and the damage of gas impurities on each part of the double-tower drying system is avoided, so that the service life is shortened. The air inlet of the filtering component is connected with the air inlet end of the spiral filtering channel, and the air outlet of the filtering component is connected with the air outlet end of the spiral filtering channel.

Preferably, the width of the spiral filtering channel is gradually reduced along the direction from the air inlet end to the air outlet end. When gas flows along the filtering channel, because fully contact with the adsorbed layer, therefore the velocity of flow descends to be the phenomenon that can't avoid, and spiral filtering channel width reduces gradually, this makes gas when advancing along filtering channel, the circulation cross-section constantly reduces, under the unchangeable condition of admission pressure, the gas velocity of flow obtains promoting, the velocity loss of compressed gas when drawing back the adsorbed layer has been retrieved to this kind of design, make the compressed gas from the filter assembly output still can keep the high velocity of flow, and then guarantee the normal operating of gas in twin-tower drying system.

Therefore, the utility model discloses following beneficial effect has: (1) the air inlet position of the dryer is provided with the filtering component, and the adsorption layer on the spiral filtering channel is used for performing concomitant impurity removal and filtering on the compressed air; (2) the adsorption layer is detachably arranged in the mounting groove which is arranged in a staggered manner, and can be quickly detached after the adsorption layer is saturated, so that the 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 filter assembly is arranged at the air inlet of the double-tower drying system, and can pre-filter compressed air which enters the double-tower drying system after being heated by the air blower, so that each part of the double-tower drying system is prevented from being damaged by gas impurities, and the service life of the double-tower drying system is shortened; (5) the spiral filtration passageway that the width reduces gradually makes gas when advancing along filtration passageway, and the flow cross section constantly reduces, and under the unchangeable condition of inlet pressure, the gas velocity of flow obtains promoting, and the compressed gas of self-filtration subassembly output still can keep the high velocity of flow, and then guarantees the normal operating of gas in twin-tower drying system.

Drawings

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

FIG. 2 is a sectional view of a filter assembly according to an embodiment.

Fig. 3 is an enlarged view of a section of the adsorbent layer of fig. 2.

In the figure: 1. the double-tower drying system comprises a double-tower drying system body 11, a first adsorption tower body 12, a second adsorption tower body 13, an air inlet part 14, an air inlet check valve 15, an air inlet pipeline air inlet adjusting valve 16, an air outlet part 2, a filtering component 21, a spiral filtering channel 211, an air inlet end 212, an air outlet end 22, an air inlet 23, an air outlet 3, an adsorption layer 31, a microporous layer 32, a water absorption layer 33, an oil absorption layer 4, an air inlet pipeline 5, an air outlet pipeline 6 and a blowing device.

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 blowing, heating, regenerating and adsorbing type drying equipment comprises a double-tower type drying system, which comprises a double-tower type drying system 1 and a blowing device 6, wherein a filter assembly 2 is arranged between the double-tower type drying system and the blowing device, a spiral type filter channel 3 is arranged on the filter assembly, the spiral type filter channel comprises a gas inlet end 211 and a gas outlet end 212, the gas inlet end is communicated with the blowing device, the gas outlet end is communicated with the double-tower type drying system, and an adsorption layer 3 is arranged on the spiral type filter channel. The spiral extending direction setting of spiral filtration passageway inner wall is followed to the adsorbed layer, when compressed gas passes through spiral filtration passageway, according to its spiral structure direction of deflecting, the adsorbed layer on the filter assembly sets up in the outside of gas circulation route, and high-pressure draught can carry out effective impact to the adsorbed layer along the flow direction homoenergetic, and this makes gas and adsorbed layer fully contact, and then the adsorbed layer fully adsorbs the impurity in the gas, and this kind of adsorbed layer along with gas flow route is marchd the in-process and is continuously adsorbed to its inside impurity at gas, effectively improves adsorption effect.

The twin tower type drying system 1 in the present embodiment includes a first adsorption tower 11 and a second adsorption tower 12, similar to the drying system in the conventional forced air heating regenerative adsorption dryer. Two adsorption tower bottoms are connected through an admission line 4, the middle part of admission line 4 is equipped with air inlet 13 and two check valves 14 that admit air, and two check valves 14 that admit air set up in air inlet 13 both sides, and two adsorption tower bottoms are connected through an air outlet pipe 5, air outlet pipe 5 middle part is equipped with air outlet 16 and two check valves of giving vent to anger, and two check valves of giving vent to anger set up in 23 both sides in the gas outlet, and two adsorption tower tops are connected with air-blast device 6 through admission line 4 respectively, be provided with admission line 4 on the admission line 4 and admit air governing valve 15.

Preferably, the spiral filtering channel is of a winding drum type structure, the outermost side of the spiral filtering channel is an air inlet end, the innermost side of the spiral filtering channel is an air outlet end, and the adsorption layer is arranged on the side wall of the spiral filtering channel. The reel structure of spiral filtration passageway has increased the area of adsorbed layer in finite space for gas can fully contact with the adsorbed layer of passageway lateral wall when flowing along the passageway again, has avoided traditional filter element formula adsorbed layer to obstruct the defect that gas flows in filtering work, and has effectively improved the filtration continuation degree when the spiral filtration passageway of gas path. The gas inlet at the gas inlet end is tangential to the flowing direction of the compressed gas, and the design can reduce the impact of the compressed gas on the joint of the gas inlet end and the blowing device, so that the gas is in smooth contact with the adsorption layer and then flows smoothly into the adsorption layer, and the impurity filtering work is completed along the spiral structure of the adsorption layer, thereby avoiding two defects caused by violent impact of the gas on the filter element in the traditional filtering device, wherein firstly, the blocking condition of the adsorption layer seriously affects the flowing speed of the compressed gas, so that the gas flow speed is disordered; secondly, the gas is not completely filtered, and then the gas breaks through the filter element and reaches the gas outlet, so that the filtering quality is influenced.

The adsorption layer is detachably connected to the spiral filtering channel. Can follow the filter component tip of perpendicular to gas flow direction after the adsorbed layer saturation and dismantle the adsorbed layer fast, the work efficiency of filter component is effectively improved to convenient the change.

As shown in fig. 3, the adsorption layer is a composite structure and comprises a microporous layer 31, a water absorption layer 32 and an oil absorption layer 33, and the water absorption layer, the oil absorption layer and the microporous layer are arranged along the length direction of the spiral filtration channel. Three kinds of adsorption structure on composite construction's the adsorbed layer can set gradually on spiral filtration passageway extending direction according to the order on layer, oil absorption layer and the micropore layer that absorbs water, composite construction's adsorbed layer 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 made of activated carbon; the water absorbing layer is made of silica gel; the oil absorption layer is made of polypropylene. 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 comprises an adsorption tower set, the filtering component is provided with an air inlet 22 and an air outlet 23, the air outlet is communicated with the adsorption tower set, and the air inlet is connected with a blowing device. The filter assembly is arranged at the air inlet of the double-tower drying system, compressed air which enters the double-tower drying system after being heated by the air blower can be subjected to pre-filtration, and the damage of gas impurities on each part of the double-tower drying system is avoided, so that the service life is shortened. The air inlet of the filtering component is connected with the air inlet end of the spiral filtering channel, and the air outlet of the filtering component is connected with the air outlet end of the spiral filtering channel.

The width of the spiral filtering channel gradually decreases along the direction from the air inlet end 211 to the air outlet end 212. When gas flows along the filtering channel, because fully contact with the adsorbed layer, therefore the velocity of flow descends to be the phenomenon that can't avoid, and spiral filtering channel width reduces gradually, this makes gas when advancing along filtering channel, the circulation cross-section constantly reduces, under the unchangeable condition of admission pressure, the gas velocity of flow obtains promoting, the velocity loss of compressed gas when drawing back the adsorbed layer has been retrieved to this kind of design, make the compressed gas from the filter assembly output still can keep the high velocity of flow, and then guarantee the normal operating of gas in twin-tower drying system.

The utility model discloses an operating condition as follows: after high-temperature compressed gas enters the air inlet of the filter assembly from the air blowing device, the filter assembly of the front-arranged double-tower drying system starts to filter the compressed gas, the compressed gas needs to pass through the spiral filter channel and the adsorption layer arranged on the spiral filter channel, the water absorption layer 32 made of silica gel, the oil absorption layer 33 made of polypropylene and the microporous layer 31 made of activated carbon are sequentially arranged on the adsorption layer from outside to inside, the gas-attached adsorption layer continuously flows forwards and passes through the adsorption layer, and when the gas spirally rotates to reach the air outlet of the filter assembly, most of impurities contained in the gas-attached adsorption layer are filtered. The high-temperature compressed gas passing through the filtering component enters the adsorption tower after being filtered, and the adsorbent in the adsorption tower is desorbed, so that a clean and energy-saving operation mode of the blowing heating regeneration dryer is realized.

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

1. The utility model provides a blast heating regeneration adsorption drying equipment, includes twin tower drying system (1) and air-blast device (6), its characterized in that, be provided with filter assembly (2) between twin tower drying system (1) and air-blast device (6), be provided with spiral filtration passageway (21) on filter assembly (2), spiral filtration passageway (21) are including inlet end (211) and give vent to anger end (212), inlet end (211) communicate in air-blast device (6), it communicates in twin tower drying system (1) to give vent to anger end (212), be provided with adsorbed layer (3) on spiral filtration passageway (21).

2. The blowing heating regeneration adsorption drying equipment of claim 1, wherein the spiral filtering channel (21) is of a winding drum type structure, the outermost side of the spiral filtering channel (21) is an air inlet end (211), the innermost side of the spiral filtering channel is an air outlet end (212), and the adsorption layer (3) is arranged on the side wall of the spiral filtering channel (21).

3. A forced air heated regenerative adsorption drying apparatus according to claim 2, wherein the adsorption layer (3) is detachably connected to the spiral filtration channel (21).

4. A forced air heating regenerative adsorption drying apparatus according to claim 1, wherein the adsorption layer (3) is a composite structure comprising a microporous layer (31), a water absorbing layer (32) and an oil absorbing layer (33), and the microporous layer (31), the oil absorbing layer (33) and the water absorbing layer (32) are arranged along the length direction of the spiral filtration channel (21).

5. The blowing heating regeneration adsorption drying equipment of claim 4, wherein the microporous layer (31) is made of activated carbon; the water absorbing layer (32) is made of silica gel; the oil absorption layer (33) is made of polypropylene.

6. The blowing heating regeneration adsorption drying equipment according to claim 1, wherein the double tower drying system (1) comprises an adsorption tower set, the filter assembly (2) is provided with an air inlet (22) and an air outlet (23), the air outlet (23) is communicated with the adsorption tower set, and the air inlet (22) is connected with the blowing device (6).

7. A forced air heated regenerative adsorption drying apparatus according to any of claims 1 to 6 wherein the width of the spiral filtration channels (21) decreases gradually from the inlet end (211) to the outlet end (212).