CN219614919U - Cryogenic recovery double-channel system - Google Patents

Abstract

The utility model relates to a cryogenic recovery double-channel system which comprises a fan, a first condensing system, a second condensing system, a first valve and a second valve, wherein the input end of the fan is communicated with an air inlet for introducing waste gas, the output end of the fan, the first valve and the input end of the first condensing system are sequentially communicated and are used for introducing the waste gas into the first condensing system for condensation, the output end of the first condensing system, the second valve and the input end of the second condensing system are sequentially communicated, and the output end of the second condensing system is provided with a second air outlet. The utility model can ensure continuous condensation operation of the waste gas, simultaneously defrost the first condensation system or the second condensation system by utilizing the high temperature of the waste gas, greatly improve the working efficiency of waste gas treatment, reduce the energy consumption and protect the environment.

Description

Cryogenic recovery double-channel system

Technical Field

The utility model relates to the field of condensing systems, in particular to a cryogenic recovery double-channel system.

Background

In the process of putting the high-humidity waste gas again, a large amount of heat can be taken away by steam, so that the heat loss is increased, the humidity of the flue gas and sulfur in the flue gas are combined to generate sulfuric acid dew condensation, firstly, a low-temperature heating surface is easy to corrode, secondly, the low-temperature heating surface can be combined with fly ash to generate hard ash, the tail heating surface is easy to block, and dehumidification treatment is needed before the high-humidity waste gas is discharged into the atmosphere.

The high humidity exhaust gas is cooled and dehumidified by a condenser. The condenser is a device for cooling a refrigerant medium, heat is required to be absorbed when the refrigerant is cooled, the existing condenser is generally of a fin type structure, a heat exchange medium is air, when the air exchanges heat with the refrigerant, the temperature of the air is further reduced, when the ambient temperature in the working process is lower, frost is easily formed on fins of the condenser, the heat exchange effect of the frosted condenser is reduced, and normal work is influenced.

Disclosure of Invention

In order to improve the dehumidification efficiency of the waste gas, the utility model provides a cryogenic recovery double-channel system.

The utility model provides a cryogenic recovery double-channel system, which adopts the following technical scheme:

the utility model provides a deep cooling recovery binary channels system, includes fan, first condensing system, second condensing system, first valve and second valve, and the input intercommunication of fan has the air inlet that is used for leading-in waste gas, and the output of fan, first valve and first condensing system's input communicate in proper order for carry out condensation with the leading-in first condensing system of waste gas, first condensing system's output, second valve and second condensing system's input communicate in proper order, and second condensing system's output is equipped with the second gas vent.

By adopting the technical scheme, the first valve and the second valve are opened, the first condensing system is operated, the fan discharges the high-temperature and high-humidity waste gas to pass through the first condensing system, and the first condensing system performs cooling condensing operation on the high-temperature and high-humidity waste gas, so that the discharged waste gas is cleaner; the first condensing system can frost after a period of work, work efficiency is reduced, the first condensing system stops working at the moment, the second condensing system operates, high-temperature and high-humidity waste gas passes through the first condensing system first, defrosting is carried out on the first condensing system through the temperature of the waste gas, defrosting equipment is not required to be added to the first condensing system, cost is saved, heat in the waste gas can be effectively utilized, the waste gas is subjected to preliminary cooling in the first condensing system, the waste gas is discharged after being condensed by the second condensing system, energy conservation and environmental protection are achieved, the process is used for waste gas condensation after defrosting the first condensing system, and waste gas treatment efficiency is improved.

Optionally, the input end of the second condensing system is communicated with a fourth valve, the output end of the second condensing system is communicated with a fifth valve, the input end of the fourth valve is connected in parallel with the input end of the fifth valve and then connected in series with the output end of the fan, the output end of the second condensing system, the fifth valve and the input end of the first condensing system are communicated, and the output end of the first condensing system is connected with a first exhaust port.

By adopting the technical scheme, the system provided by the utility model can have three working states, namely, a first working state: the system is started for the first time, the first valve and the first condensing system are opened, the second valve, the fourth valve, the fifth valve and the second condensing system are closed, waste gas is discharged after being condensed by the first condensing system, the passing flow of the waste gas is reduced, and the waste gas discharging efficiency is improved; and a second working state: when the first condensation system works until frost blocks for reducing the waste gas treatment effect are generated inside, the first valve, the second valve and the second condensation system are opened, and the fourth valve, the fifth valve and the first condensation system are closed, so that the high-heat waste gas firstly defrost the first condensation system and then is condensed and dehumidified by the second condensation system and then is discharged; third working state: when the first condensation system can work normally and the second condensation system generates frost blocks, the fourth valve, the fifth valve and the first condensation system are opened, and the first valve, the second valve and the second condensation system are closed, so that the high-heat waste gas firstly defrost the second condensation system and then is condensed and dehumidified by the first condensation system and then is discharged; when the utility model works, the waste gas can be ensured to continuously condense in the second working state and the third working state, and simultaneously the first condensing system or the second condensing system is defrosted by utilizing the high temperature of the waste gas, thereby greatly improving the working efficiency of waste gas treatment, reducing the energy consumption and protecting the environment.

Optionally, the first exhaust port is communicated with a third valve, the second valve is communicated with the third valve, the second exhaust port is communicated with a sixth valve, and the fifth valve is communicated with the sixth valve.

Through adopting above-mentioned technical scheme, the switching of third valve can play and let waste gas follow second gas vent discharge or confined effect, and at the in-process of first condensing system defrosting, close the third valve and avoid waste gas not through the direct exhaust risk of condensation process, the switching of sixth valve can play and let waste gas follow second gas vent discharge or confined effect, at the in-process of second condensing system defrosting, close the sixth valve and avoid waste gas not through the direct exhaust risk of condensation process.

Optionally, the first condensing system includes first condensing part, first heat exchanger and second condensing part, and the output of first valve communicates with the input of first condensing part, and first condensing part, first heat exchanger and second condensing part communicate in proper order for to the waste gas condensation through first valve.

Through adopting above-mentioned technical scheme, first condensation piece, first heat exchanger and second condensation piece can carry out cooling condensation treatment to the high temperature high humidity waste gas through first valve to the material that waste gas needs to be handled and retrieved carries out condensation recovery.

Optionally, the second condensing system includes a third condensing element, a second heat exchanger and a fourth condensing element, an output end of the fourth valve is communicated with an input end of the third condensing element, and the third condensing element, the second heat exchanger and the fourth condensing element are sequentially communicated to condense the exhaust gas passing through the fourth valve.

Through adopting above-mentioned technical scheme, three condensation piece, second heat exchanger and fourth condensation piece can carry out cooling condensation treatment to the high temperature high humidity's that passes through the fourth valve waste gas to the material that waste gas needs to be handled and retrieve carries out condensation recovery.

Optionally, a heat exchange chamber and a heat exchange pipeline are arranged in the first heat exchanger, the heat exchange pipeline is arranged in the heat exchange chamber, the output end of the first condensation piece is communicated with the input end of the heat exchange pipeline, and the output end of the heat exchange pipeline is communicated with the input end of the second condensation piece.

Through adopting above-mentioned technical scheme, in the waste gas entering heat dissipation pipeline of preliminary cooling condensation of first condensation piece, waste gas can be through in the heat dissipation pipeline with heat transfer to the heat transfer cavity to played.

Optionally, the output end of the second condensation member and the input end of the second valve are both communicated with the heat exchange chamber to reduce the temperature in the heat exchange chamber.

Through adopting above-mentioned technical scheme, pass the heat transfer cavity through the waste gas behind the second condensation piece refrigerated, the temperature of waste gas in the heat transfer cavity is lower than the waste gas temperature in the cooling tube, the heat can be spontaneous from high temperature one side flow direction low temperature one side, the effect of waste gas cooling condensation in the cooling tube has further been strengthened, after the cooling of first condensation piece, first radiator, second condensation piece, the humidity of waste gas can reach the exhaust requirement, and the waste water of condensation has been retrieved, even waste gas slightly has the intensification also can not make the humidity of waste gas rise in the heat transfer cavity.

Optionally, the number of fans is two, and the fans are arranged in parallel.

By adopting the technical scheme, the two fans are mutually backed up, and when one fan is damaged, the other fan can be started, so that the flow rate of high-temperature and high-humidity waste gas can be continuously increased by the fan to enter the next procedure.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the first valve and the second valve are opened, the first condensing system is operated, the fan discharges the high-temperature and high-humidity waste gas to pass through the first condensing system, and the first condensing system performs cooling condensing operation on the high-temperature and high-humidity waste gas, so that the discharged waste gas is cleaner;

2. the first condensing system is defrosted through the temperature of the waste gas, defrosting equipment is not needed to be added in the first condensing system, the cost is saved, the heat in the waste gas can be effectively utilized, the waste gas is subjected to preliminary cooling in the first condensing system, the waste gas is discharged after being condensed by the second condensing system, the energy is saved, the environment is protected, the waste gas is condensed after the first condensing system is defrosted, and the waste gas treatment efficiency is improved;

3. when the utility model works, the waste gas can be ensured to continuously condense in the second working state and the third working state, and simultaneously the first condensing system or the second condensing system is defrosted by utilizing the high temperature of the waste gas.

Drawings

FIG. 1 is a schematic flow diagram of a cryogenic recovery dual-channel system of the present utility model.

Fig. 2 is a schematic cross-sectional view of a first heat exchanger according to the utility model.

FIG. 3 is a schematic flow chart of a first working state of the cryogenic recovery dual-channel system of the utility model.

FIG. 4 is a schematic flow chart of a second working state of the cryogenic recovery dual-channel system of the utility model.

FIG. 5 is a schematic flow chart of a third working state of the cryogenic recovery dual-channel system of the utility model.

Reference numerals illustrate: 1. an exhaust gas source; 2. a blower; 3. a first condensing system; 31. a first condensing member; 32. a second condensing member; 33. a first heat exchanger; 331. a heat exchange chamber; 332. a heat exchange pipeline; 4. a second condensing system; 41. a third condensing member; 42. a fourth condensing member; 43. a second heat exchanger; 51. a first valve; 52. a second valve; 53. a third valve; 54. a fourth valve; 55. a fifth valve; 56. a sixth valve; 71. an air inlet; 72. a first exhaust port; 73. a second exhaust port; 74. a vent; 75. and a heat radiation port.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a cryogenic recovery double-channel system.

Referring to fig. 1, the cryogenic recovery dual-channel system comprises a fan 2, a first condensing system 3 and a second condensing system 4, wherein an air inlet 71 for introducing high-temperature high-humidity waste gas is formed in the input end of the fan 2, and one side of the air inlet 71, which is away from the fan 2, is communicated with a waste gas source 1. In this embodiment, the number of fans 2 is two, and the input ends of the two fans 2 are connected in parallel and then connected in series with the input end of the exhaust gas source 1. The two fans 2 are backed up each other, thereby reducing the risk that damage to the fans 2 will reduce the efficiency of exhaust gas transmission. It is worth noting that the structures of the present utility model are all directly connected by pipelines. The input end of the first condensing system 3 is connected in parallel with the output end of the second condensing system 4 and then is communicated with the output end of the fan 2, and the input end of the first condensing system 3 is communicated with a first valve 51 for controlling waste gas to enter the first condensing system 3.

Referring to fig. 1 and 2, the first condensing system 3 includes a first condensing member 31, a first heat exchanger 33 and a second condensing member 32, a heat exchange chamber 331 and a heat exchange pipe 332 are disposed inside the first heat exchanger 33, the heat exchange pipe 332 is fixed in the heat exchange chamber 331 in a bent arrangement, two ends of the heat exchange pipe 332 are fixedly connected with an outer wall of the first heat exchanger 33, one end of the heat exchange pipe 332 is communicated with an output end of the first condensing member 31, and the other end of the heat exchange pipe 332 is communicated with an input end of the second condensing member 32. It should be noted that the heat exchange chamber 331 is not in communication with the heat exchange conduit 332.

Referring to fig. 2, the first heat exchanger 33 is provided with a vent 74 and a heat dissipation port 75 which are communicated with the heat exchange chamber 331, and the output end of the second condensation member 32 is communicated with the vent 74 of the heat exchange chamber 331, in this embodiment, the first condensation member 31 and the second condensation member 32 adopt air-cooled fin type condensers, and the temperature of the exhaust gas is gradually reduced in an air-cooled manner, so that deformation damage to the condensers caused by overlarge temperature difference is avoided.

The heat radiation port 75 of the first heat exchanger 33 is communicated with a second valve 52 and a third valve 53, and the output end of the second valve 52 is communicated with the input end of the second condensing system 4. The end of the pipeline where the third valve 53 is located, which is away from the heat dissipation port 75, is provided with a first air outlet 72, when the third valve 53 is opened, the waste gas can be discharged from the first air outlet 72, and when the third valve 53 is closed, the waste gas can enter the second condensation system 4 through the second valve 52.

Referring to fig. 1, the second condensing system 4 includes a third condensing element 41, a second heat exchanger 43 and a fourth condensing element 42, the third condensing element 41 is communicated with a fourth valve 54, an output end of the fan 2, the fourth valve 54 and an input end of the third condensing element 41 are communicated, and when the fourth valve 54 is opened and the first valve 51 is closed, the fan 2 can introduce the exhaust gas to be treated into the third condensing element 41. The output of the second valve 52 is connected to the input of the third condensation element 41 for introducing the waste gas, which is frosted to the first condensation system 3, into the second condensation system 4.

In this embodiment, the third condensation member 41 and the fourth condensation member 42 are air-cooled fin type condensers of the same type as the first condensation member 31, and the second heat exchanger 43 has the same structure as the first heat exchanger 33. The third condensing element 41, the second heat exchanger 43 and the fourth condensing element 42 are sequentially communicated and are used for cooling and condensing the exhaust gas passing through the second condensing system 4. The heat radiation port 75 of the second heat exchanger 43 is communicated with a fifth valve 55 and a sixth valve 56, and an output end of the fifth valve 55 is communicated with an input end of the first condensation member 31 for guiding the waste gas for defrosting the second condensation system 4 into the first condensation system 3. The sixth valve 56 is connected to a second exhaust port 73 for exhausting the exhaust gas treated by the second condensing system 4.

The implementation principle of the embodiment is as follows: the utility model has three working states, and the working principle is described in detail with reference to figures 3-5. For convenience of explanation, the illustrated parts are pipes communicating in the working state, and the valves are not started or the communicating parts are not shown.

The working state is as follows: referring to fig. 3, the system is started for the first time, the first valve 51 and the first condensation system 3 are opened, the second valve 52, the fourth valve 54, the fifth valve 55 and the second condensation system 4 are closed, and the waste gas is discharged after being condensed only through the first condensation system 3, so that the flow of the waste gas is reduced, and the efficiency of discharging the waste gas is improved.

And the working state is as follows: referring to fig. 4, when the first condensation system 3 works until frost blocks reducing the effect of exhaust gas treatment are generated inside, the first valve 51, the second valve 52 and the second condensation system 4 are opened, and the fourth valve 54, the fifth valve 55 and the first condensation system 3 are closed, so that the high-heat exhaust gas is firstly defrosted for the first condensation system 3, and then is condensed and dehumidified by the second condensation system 4 and is discharged.

And the working state is three: referring to fig. 5, when the first condensation system 3 can work normally and the second condensation system 4 generates frost, the fourth valve 54, the fifth valve 55 and the first condensation system 3 are opened, and the first valve 51, the second valve 52 and the second condensation system 4 are closed, so that the high-heat waste gas is firstly defrosted for the second condensation system 4 and then is condensed and dehumidified by the first condensation system 3 and then is discharged.

By controlling the opening and closing of the valve, the utility model can realize cyclic reciprocation between the working state II and the working state III, and can defrost the condensing system of frosting while continuously cooling and dehumidifying the high-temperature and high-humidity waste gas.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A cryogenic recovery double-channel system is characterized in that: including fan (2), first condensing system (3), second condensing system (4), first valve (51) and second valve (52), the input intercommunication of fan (2) has air inlet (71) that are used for leading-in waste gas, the output of fan (2), first valve (51) and the input of first condensing system (3) communicate in proper order for carry out the condensation with waste gas leading-in first condensing system (3), the output of first condensing system (3), the input of second valve (52) and second condensing system (4) communicate in proper order, the output of second condensing system (4) is equipped with second gas vent (73).

2. The cryogenic recovery dual-channel system of claim 1 wherein: the input of second condensing system (4) communicates there is fourth valve (54), the output of second condensing system (4) communicates there is fifth valve (55), the input of fourth valve (54) and the input of fifth valve (55) are parallelly connected back and are established ties with the output of fan (2), the input of second condensing system (4), fifth valve (55) and first condensing system (3) communicates, the output of first condensing system (3) is connected with first gas vent (72).

3. The cryogenic recovery dual-channel system of claim 2 wherein: the first exhaust port (72) is communicated with a third valve (53), the second valve (52) is communicated with the third valve (53), the second exhaust port (73) is communicated with a sixth valve (56), and the fifth valve (55) is communicated with the sixth valve (56).

4. The cryogenic recovery dual-channel system of claim 1 wherein: the first condensing system (3) comprises a first condensing part (31), a first heat exchanger (33) and a second condensing part (32), wherein the output end of the first valve (51) is communicated with the input end of the first condensing part (31), and the first condensing part (31), the first heat exchanger (33) and the second condensing part (32) are sequentially communicated and used for condensing waste gas passing through the first valve (51).

5. The cryogenic recovery dual-channel system of claim 2 wherein: the second condensing system (4) comprises a third condensing part (41), a second heat exchanger (43) and a fourth condensing part (42), the output end of the fourth valve (54) is communicated with the input end of the third condensing part (41), and the third condensing part (41), the second heat exchanger (43) and the fourth condensing part (42) are sequentially communicated to condense waste gas passing through the fourth valve (54).

6. The cryogenic recovery dual-channel system of claim 4, wherein: be equipped with heat exchange cavity (331) and heat exchange pipeline (332) in first heat exchanger (33), heat exchange pipeline (332) are installed in heat exchange cavity (331), the output of first condensation piece (31) communicates with the input of heat exchange pipeline (332), the output of heat exchange pipeline (332) communicates with the input of second condensation piece (32).

7. The cryogenic recovery dual-channel system of claim 4, wherein: the output end of the second condensing piece (32) and the input end of the second valve (52) are communicated with the heat exchange cavity (331) so as to reduce the temperature of the surface of the heat exchange pipeline (332).

8. The cryogenic recovery dual-channel system of claim 1 wherein: the number of the fans (2) is two, and the fans (2) are arranged in parallel.