CN212819027U

CN212819027U - Novel energy-saving zero-air-consumption blast heating adsorption dryer

Info

Publication number: CN212819027U
Application number: CN202020379323.7U
Authority: CN
Inventors: 孙阳静
Original assignee: Fujian Ipsi Industry Co ltd
Current assignee: Fujian Ipsi Industry Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-03-30
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a novel energy-saving zero-gas-consumption blast heating adsorption dryer, which relates to the field of tail gas regeneration, and comprises a first tower body, a second tower body and an air blower, wherein the lower end of the first tower body is connected with a first gas inlet pipe, the upper end of the first tower body is connected with a first gas exhaust pipe, the upper end of the second tower body is connected with a second gas inlet pipe, the lower end of the second tower body is connected with a second gas exhaust pipe, a radiator, a heating pipe and a gas return valve are sequentially arranged between the second gas inlet pipe and the upper end of the second tower body, the heating and cooling flow is realized by only switching the operation between a heater and the radiator, and the control of a control valve of the air blower, the operation flow is greatly simplified, the manufacture of equipment is more popular and easier to understand, and the air after internal drying is used for heat exchange and cooling in the radiator, the adsorbent is blown again, the absorption penetration time is prolonged, and the dew point is more stable.

Description

Novel energy-saving zero-air-consumption blast heating adsorption dryer

Technical Field

The utility model belongs to the technical field of tail gas regeneration relates to and specifically relates to a novel energy-conserving zero gas consumption blast air heating adsorption dryer.

Background

The novel zero-air-consumption blast thermal adsorption dryer also takes the air blower as a power regeneration air source, heats the ambient air to the regeneration desorption temperature required by the adsorbent, and then desorbs the moisture. In the external heating desorption process, the regenerated tail gas is generally discharged out of the machine body in the conventional method, the energy consumption lost by the part of heat is neglected, according to statistics, the heat of the part of regenerated tail gas accounts for 15% -30% of the whole heating regeneration energy consumption, if the part of regenerated tail gas can be recycled, in a project of using a large amount of gas, the energy-saving space is quite objective, so that an adsorption dryer which can recycle the part of energy and reduce the loss of energy consumption is needed to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel energy-conserving zero gas consumption blast air heating adsorption dryer to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel energy-conserving zero gas consumption blast air heating adsorption dryer, includes first tower body, second tower body and air-blower, first tower body lower extreme is connected with first intake pipe, and the upper end is connected with first blast pipe, second tower body upper end is connected with the second intake pipe, and the lower extreme is connected with the second blast pipe, the second intake pipe with install radiator, heating tube, return valve door between the second tower body upper end in proper order, the second blast pipe with install air-blower control valve, recovery valve, heat extraction valve between the second tower body lower extreme in proper order, air-blower control valve with the air-blower is linked together.

As a further technical scheme of the utility model, be provided with first air inlet valve in the first intake pipe, be provided with first one-way discharge valve on the first exhaust pipe.

As a further technical scheme of the utility model, this first air inlet valve with the intercommunication has first shunt tubes between the heat extraction valve, first shunt tubes leans on second admission valve is installed to first air inlet valve one end, first shunt tubes leans on the second stop valve is installed to heat extraction valve one end.

As a further technical scheme of the utility model, this first air inlet valve with the intercommunication has the second shunt tubes between the first tower body, install third air inlet valve and first stop valve on the second shunt tubes.

As a further technical scheme of the utility model, first exhaust pipe with the intercommunication has the third shunt tubes between the second intake pipe, install fourth admission valve, fifth admission valve, third stop valve and fourth stop valve on the third shunt tubes.

The utility model has the advantages that: the heating and cooling flow is realized, the operation switching between the heater and the radiator is only carried out, the control of the control valve of the air blower is realized, the operation flow is greatly simplified, the manufacture of the equipment is more popular and easy to understand, the air after internal drying is used for cooling the adsorbent after heat exchange and cooling in the radiator by cooling by blowing, the preloading phenomenon of the adsorbent is prevented, the adsorption penetration time is ensured to be prolonged, and the dew point is more stable.

Drawings

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

Wherein: the device comprises a first tower body 1, a second tower body 2, a first air inlet pipe 3, an air blower 4, a first exhaust pipe 5, a second air inlet pipe 6, a second exhaust pipe 7, a first air inlet valve 8, a first one-way exhaust valve 9, a radiator 10, a heating pipe 11, a return air valve 12, an air blower control valve 13, a recovery valve 14, an heat exhaust valve 15, a first shunt pipe 16, a second air inlet valve 17, a second stop valve 18, a second shunt pipe 19, a third air inlet valve 20, a first stop valve 21, a third shunt pipe 22, a fourth air inlet valve 23, a fifth air inlet valve 24, a third stop valve 25 and a fourth stop valve 26.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings and preferred embodiments.

Referring to fig. 1, a novel energy-saving zero-gas-consumption blowing heating adsorption dryer includes a first tower body 1, a second tower body 2 and a blower 4, wherein a first gas inlet pipe 3 is connected to the lower end of the first tower body 1, a first gas outlet pipe 5 is connected to the upper end of the first tower body 1, a second gas inlet pipe 6 is connected to the upper end of the second tower body 2, a second gas outlet pipe 7 is connected to the lower end of the second tower body 2, a radiator 10, a heating pipe 11 and a gas return valve 12 are sequentially installed between the second gas inlet pipe 6 and the upper end of the second tower body 2, a blower control valve 13, a recovery valve 14 and a heat outlet valve 15 are sequentially installed between the second gas outlet pipe 7 and the lower end of the second tower body 2, the blower control valve 13 is communicated with the blower 4, a first gas inlet valve 8 is disposed on the first gas inlet pipe 3, and a first one-, the heating regeneration process is realized in the first tower body 1 and the second tower body 2: wet compressed air enters from a first air inlet pipe 3, enters a first tower body 1 through a first air inlet valve 8 for adsorption, is discharged from a first exhaust pipe 5 through a first one-way exhaust valve 9, and is heated and regenerated by a second tower body 2 saturated with an adsorbent, firstly, a blower 4 is started to send ambient air and recovered regeneration tail gas into a second air inlet pipe 6 at the same time, a radiator 10 is closed, a heating pipe 11 is started, the temperature is heated to about 150 ℃ and 180 ℃ under the action of the heating pipe, the mass transfer speed of the moisture is accelerated by continuous heating, then the moisture is completely desorbed, a return valve 12 is opened, the heated gas is introduced into the second tower body 2 again, and the heated gas flows out of the second exhaust pipe 7 and is discharged from the second exhaust pipe 4 after passing through a heat discharge valve 15, a recovery valve 14 and a blower control valve 13; the cooling process is realized by the first tower body 1 and the second tower body 2: the saturated first air inlet pipe 3 enters, enters the first tower body 1 through the first air inlet valve 8 for adsorption, then is discharged from the first exhaust pipe 5 through the first one-way exhaust valve 9, after heating regeneration is completed through the setting index of the tail gas temperature, the heating pipe 11 stops heating, the radiator 10 starts to operate, next cooling is performed, the adsorbent is cooled and blown to the optimal adsorption temperature, the air return valve 12 is opened, the cold-blown gas is introduced into the second tower body 2 again, the cold-blown gas flows out of the second exhaust pipe 7 and flows into the air blower 4 through the heat discharge valve 15 and the recovery valve 14, thus the operation switching between the heater and the radiator is only performed in the heating cooling flow, the control of the air blower control valve is realized, the operation flow is greatly simplified, the manufacture of the equipment is more popular and easy to understand, and the air after internal drying is used for heat exchange and cooling in the radiator for cooling, the cold-blown adsorbent is also used, the pre-loading phenomenon of the adsorbent is prevented, the adsorption penetration time is prolonged, and the dew point is more stable.

Wherein, for energy consumption calculation analysis (theoretical proof data)

Known as 100Nm³Min, saturated inlet air temperature 38 ℃, and inlet air gauge pressure 0.7 MPa. If the cycle time is 12H, the switching time is 6H. The pressure dew point is required to be-40 ℃. An energy consumption analysis is illustrated as follows:

the heat required for heating and regenerating the first definite air-blast heat adsorption dryer comes from no more than four points:

1. the heat required for desorption Q1 during the moisture cycle time;

2. heat required for the adsorbent Q2;

3. heat required for structural cylinders Q3;

4. the lost heat Q4 is divided into the heat radiation loss Qa between the drum and the outside and the heat discharged Qb of the regeneration exhaust gas: q total Q1+ Q2+ Q3+ Q4;

from the above known conditions, the amount of water required to be desorbed per hour was calculated to be 39.6kg (not described in detail), and therefore:

1. a.9.. 9... (the desorption heat of moisture is known to be 2900 kJ/kg);

the specific heat of the adsorbent was known to be 0.9kJ/kg. ℃ with 1900kg of single column packing and an average temperature rise of 95 ℃.

2、Q2＝0.9×1900×95＝162450KJ；

The specific heat of the steel cylinder body of the structure is known as 0.48kJ/kg. ℃ according to Q235 carbon steel, the self weight of the tower is 840kg, and the average temperature rise is 95 ℃.

3、Q3＝0.48×840×95＝38304KJ；

The heat loss can be divided into heat exchange loss of the environment and the cylinder and heat loss of the regenerated tail gas. The model selection air quantity of the known blower is 1320m³H, specific heat at constant pressure of 1.01kJ/kg. ℃, density of 1.2kg/m³The average temperature rise of the regeneration gas was 25 ℃.

4、Qa＝1.01×1.2×1320×35＝55994KJ；

Qb being caused by radiation of the cylinder from the outside temperatureHeat loss, regeneration time was 3.5 hours. The following can be obtained according to the Newton's cooling equation:

Qb＝0.9×20.4×3.14×1.2×2.3×[(273+130/100)^4-(273+35/100)^4]×3.5＝96901KJ；

a..

A....................................

C₀A..

T₁A..

T₀A.

T_zA.

To summarize: the total required heat quantity Qtotal can be obtained as Q1+ Q2+ Q3+ Qa + Qb;

total Q is 689040+162450+38304+55994+96901 is 1042689 KJ;

Q4＝Qa+Qb＝39996+96901＝152895KJ；

lost heat occupancy: Q4/Q total 152895/1042689-15%;

Q4/(3600*3.5)＝152895/(3600*3.5)＝12KW。

therefore, 12KW of power consumption can be saved per hour after the tail gas is recycled, and the larger the treatment amount is, the larger the energy-saving space is.

Further, this first air inlet valve 8 with the intercommunication has first shunt tube 16 between the heat extraction valve 15, first shunt tube 16 leans on second admission valve 17 is installed to first air inlet valve 8 one end, first shunt tube 16 leans on second stop valve 18 is installed to heat extraction valve 15 one end, this first admission valve 8 with the intercommunication has second shunt tube 19 between the first tower body 1, install third admission valve 20 and first stop valve 21 on the second shunt tube 19, first exhaust pipe 5 with the intercommunication has third shunt tube 22 between the second admission pipe 6, install fourth admission valve 23, fifth admission valve 24, third stop valve 25 and fourth stop valve 26 on the third shunt tube 22, can open under the normal condition and realize the reposition of redundant personnel, improve the security.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel energy-saving zero-gas-consumption blast heating adsorption dryer comprises a first tower body (1), a second tower body (2) and a blower (4), it is characterized in that the lower end of the first tower body (1) is connected with a first air inlet pipe (3), the upper end is connected with a first exhaust pipe (5), the upper end of the second tower body (2) is connected with a second air inlet pipe (6), the lower end is connected with a second exhaust pipe (7), a radiator (10), a heating pipe (11) and an air return valve (12) are sequentially arranged between the second air inlet pipe (6) and the upper end of the second tower body (2), a blower control valve (13), a recovery valve (14) and a heat extraction valve (15) are sequentially arranged between the second exhaust pipe (7) and the lower end of the second tower body (2), the air blower control valve (13) is communicated with the air blower (4).

2. The novel energy-saving zero-air-consumption blowing heating adsorption dryer as claimed in claim 1, wherein a first air inlet valve (8) is arranged on the first air inlet pipe (3), and a first one-way exhaust valve (9) is arranged on the first exhaust pipe (5).

3. The new energy-saving zero-air-consumption blowing heating adsorption dryer according to claim 2, characterized in that a first shunt pipe (16) is connected between the first air inlet valve (8) and the heat exhaust valve (15), a second air inlet valve (17) is installed at one end of the first shunt pipe (16) close to the first air inlet valve (8), and a second stop valve (18) is installed at one end of the first shunt pipe (16) close to the heat exhaust valve (15).

4. The new energy-saving zero-air-consumption blowing heating adsorption dryer according to claim 2, characterized in that a second shunt pipe (19) is connected between the first air inlet valve (8) and the first tower body (1), and a third air inlet valve (20) and a first stop valve (21) are installed on the second shunt pipe (19).

5. The novel energy-saving zero-air-consumption blowing heating adsorption dryer as claimed in claim 1, wherein a third shunt pipe (22) is communicated between the first exhaust pipe (5) and the second air inlet pipe (6), and a fourth air inlet valve (23), a fifth air inlet valve (24), a third stop valve (25) and a fourth stop valve (26) are mounted on the third shunt pipe (22).