CN211514025U - Air heating drying device with second-stage condenser - Google Patents

Abstract

The utility model discloses an air heating and drying device with a secondary condenser, which comprises an air drying compressor, a primary condenser and a secondary condenser which are arranged in sequence; the first-stage condenser and the second-stage condenser both comprise an external heat-insulating shell and an internal condensing pipe, and a heating chamber is formed between the heat-insulating shell and the condensing pipe; the utility model discloses make full use of the temperature difference of the inside and outside both sides of condenser's condenser pipe, be used for the liquefaction of humid hot-air to retrieve with the inside condensation chamber of condenser pipe, be used for the heating of dry air with the high temperature heating chamber of condenser pipe outside to form dry hot-air, through setting up double-deck heat conduction pipe wall, and lay the refrigeration piece in its inside, guarantee the one-way transmission of heat between condensation chamber and the heating chamber, effectively keep the low temperature state in the condensation chamber and the high temperature state in the heating chamber, simple structure, practice thrift equipment cost; the dry air is heated doubly, so that the heating efficiency of the dry hot air is ensured; the wet and hot air is subjected to double condensation liquefaction, and the recovery effect is good.

Description

Air heating drying device with second-stage condenser

Technical Field

The utility model relates to an industrial raw materials handles the field, specifically is an air heating drying device with second grade condenser.

Background

At present, more than 98% of evaporators (single-effect, double-effect, triple-effect, MVR, TVR and the like) on the market heat raw material liquid through a heat exchanger, and the raw material liquid starts to be gasified after reaching the evaporation temperature, so that the purpose of evaporation concentration is realized. Since most of the raw material liquid is extremely corrosive, expensive alloy materials are required for all parts in contact with the raw material liquid and the concentrated liquid, including heat exchangers, pipelines, evaporation reactors, and the like.

Traditional evaporimeter gas-liquid separation gas all is traditional stainless steel tank body container, and the entrainment volume is great, and the separation effect is not good, leads to comdenstion water quality of water not up to standard, need get back to filtration adsorption system and membrane processing system further processing and just can retrieval and utilization to production line or discharge up to standard. The evaporator is poor in heat exchange effect and high in energy consumption due to the fact that feed liquid phase changes on the surface of an alloy material, crystals or scaling substances can be attached to the surfaces of the heat exchanger and the reaction kettle, chemical cleaning needs to be stopped frequently, chemical pollution and user operation and use risks are caused, and the use efficiency and the service life of equipment are reduced.

In order to solve the problems, the prior art provides a method for carrying out dehumidification and concentration on a raw material liquid by mixing dry hot air and the raw material liquid and taking away water in the raw material liquid, so that the raw material liquid is prevented from directly contacting a heat exchanger, the corrosivity of the raw material liquid does not influence the system, and the investment and operation cost is greatly saved. However, the existing equipment can not obtain dry hot air well, and wet air formed by mixing the dry hot air with the feed liquid can not be treated well.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air heating drying device with second grade condenser to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an air heating and drying device with a secondary condenser comprises an air drying compressor, a primary condenser and a secondary condenser which are arranged in sequence; the first-stage condenser and the second-stage condenser both comprise an external heat-insulating shell and an internal condensing pipe, and a heating chamber is formed between the heat-insulating shell and the condensing pipe; the outer end of the condensing pipe of the first-stage condenser is provided with a steam inlet, the outer end of the condensing pipe of the second-stage condenser is provided with a pressure balance pipe, and the opposite ends of the two condensing pipes are communicated through a steam guide pipe; the outer end of the first-stage condenser is provided with a dry air inlet communicated with the corresponding heating chamber, the outer end of the second-stage condenser is provided with a dry hot air outlet communicated with the corresponding heating chamber, and the two heating chambers are communicated through an air duct; the air drying compressor is provided with an air inlet and an air outlet respectively, and the air outlet is connected with the drying air inlet.

Preferably, a recovery water tank is arranged below the first-stage condenser and the second-stage condenser respectively, and a plurality of drain pipes communicated with the recovery water tank are arranged at the bottoms of the two condensation pipes in the first-stage condenser and the second-stage condenser respectively.

Preferably, the condenser pipe includes inside condensing chamber, and the condensing chamber lateral wall is first heat conduction pipe wall, and the outside cover of first heat conduction pipe wall is equipped with the second heat conduction pipe wall with the heating chamber contact, and a plurality of refrigeration pieces have been laid to the intermediate layer intracavity that first heat conduction pipe wall and second heat conduction pipe wall formed.

Preferably, the heat absorbing surface of the refrigeration sheet is attached to the wall of the first heat conducting pipe, and the heat radiating surface of the refrigeration sheet is attached to the wall of the second heat conducting pipe.

Preferably, the drain pipe is a funnel-shaped structure with an opening facing the inside of the condensation chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the difference in temperature of the inside and outside both sides of condenser pipe of make full use of condenser, the liquefaction that is used for the inside condensation chamber of condensation pipe for humid hot-air is retrieved, the heating that is used for dry air with the outside high temperature heating chamber of condensation pipe forms dry hot-air, through setting up double-deck heat conduction pipe wall, and lay the refrigeration piece in its inside, guarantee the one-way transmission of heat between condensation chamber and the heating chamber, effectively keep the low temperature state in the condensation chamber and the high temperature state in the heating chamber, moreover, the steam generator is simple in structure, and the equipment cost is saved.

2. The primary condenser and the secondary condenser are arranged to doubly heat the dry air, so that the heating efficiency of the dry hot air is ensured; carry out dual condensation liquefaction to damp and hot air, it is effectual to retrieve to in discharging the comdenstion water recovery water tank through the drain pipe, the collection of the comdenstion water of being convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the specific structure of the condenser tube of the present invention.

In the figure: 1. an air drying compressor; 2. a first-stage condenser; 3. a secondary condenser; 4. a heat-insulating shell; 5. a condenser tube; 6. a heating chamber; 7. a steam inlet; 8. a pressure balance tube; 9. a steam conduit; 10. a dry air inlet; 11. a hot dry air outlet; 12. an air conduit; 13. an air inlet; 14. an air outlet; 15. a recovery water tank; 16. a drain pipe; 17. a condensing chamber; 18. a first heat conducting pipe wall; 19. a second heat conducting pipe wall; 20. a refrigeration sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: an air heating drying device with a secondary condenser comprises an air drying compressor 1, a primary condenser 2 and a secondary condenser 3 which are arranged in sequence; the primary condenser 2 and the secondary condenser 3 both comprise an external heat-insulating shell 4 and an internal condenser pipe 5, and a heating chamber 6 is formed between the heat-insulating shell 4 and the condenser pipe 5; the outer ends of the condensation pipes 5 of the first-stage condenser 2 are provided with steam inlets 7, the outer ends of the condensation pipes 5 of the second-stage condenser 3 are provided with pressure balance pipes 8, and the opposite ends of the two condensation pipes 5 are communicated through steam guide pipes 9; the outer end of the first-stage condenser 2 is provided with a dry air inlet 10 communicated with the corresponding heating chamber 6, the outer end of the second-stage condenser 3 is provided with a dry hot air outlet 11 communicated with the corresponding heating chamber 6, and the two heating chambers 6 are communicated through an air duct 12; the air drying compressor 1 is provided with an air inlet 13 and an air outlet 14, and the air outlet 14 is connected with the drying air inlet 10.

Furthermore, a recovery water tank 15 is respectively arranged below the first-stage condenser 2 and the second-stage condenser 3, and a plurality of drain pipes 16 communicated with the recovery water tank 15 are respectively arranged at the bottoms of the two condensation pipes 5 in the first-stage condenser 2 and the second-stage condenser 3.

Further, the condensation pipe 5 comprises an internal condensation chamber 17, the side wall of the condensation chamber 17 is a first heat conduction pipe wall 18, a second heat conduction pipe wall 19 in contact with the heating chamber 6 is sleeved outside the first heat conduction pipe wall 18, and a plurality of refrigerating sheets 20 are laid in an interlayer cavity formed by the first heat conduction pipe wall 18 and the second heat conduction pipe wall 19.

Furthermore, the heat absorbing surface of the refrigeration sheet 20 is attached to the first heat conducting pipe wall 18, and the heat dissipating surface thereof is attached to the second heat conducting pipe wall 19.

Further, the drain pipe 16 is a funnel structure opened toward the inside of the condensation chamber 17.

The working principle is as follows: when the device works, the steam inlet 7 is connected with the steam output end of the raw material liquid evaporator, and the dry hot air outlet 11 is communicated with the interior of the raw material liquid evaporator; the refrigeration piece 20 is electrically connected with the external power supply module, the power switch is started, the refrigeration piece 20 starts to work, the interior of the condensation chamber 17 is absorbed with heat, and meanwhile, the interior of the heating chamber 6 is radiated with heat; air is dried by an air drying compressor 1 and then sequentially enters a heating chamber 6 of a first-stage condenser 2 and a heating chamber 6 of a second-stage condenser 3 to be heated twice, dry hot air is formed and then is led out by a dry hot air outlet 11 to enter a raw material liquid evaporator, the dry hot air is fully mixed with sprayed raw material liquid to become humid air to be discharged, the humid air sequentially enters a condensing chamber 17 of the first-stage condenser 2 and the condensing chamber 17 of the second-stage condenser 3 through a steam inlet 7, is liquefied into water when meeting cold, and flows into a recovery water tank 15 through a drain pipe 16 to be collected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. An air heating and drying device with a secondary condenser is characterized by comprising an air drying compressor (1), a primary condenser (2) and a secondary condenser (3) which are arranged in sequence; the primary condenser (2) and the secondary condenser (3) both comprise an external heat-insulating shell (4) and an internal condensing pipe (5), and a heating chamber (6) is formed between the heat-insulating shell (4) and the condensing pipe (5); the outer end of the condensing pipe (5) of the primary condenser (2) is provided with a steam inlet (7), the outer end of the condensing pipe (5) of the secondary condenser (3) is provided with a pressure balance pipe (8), and the opposite ends of the two condensing pipes (5) are communicated through a steam guide pipe (9); the outer end of the first-stage condenser (2) is provided with a dry air inlet (10) communicated with the corresponding heating chamber (6), the outer end of the second-stage condenser (3) is provided with a dry hot air outlet (11) communicated with the corresponding heating chamber (6), and the two heating chambers (6) are communicated through an air duct (12); the air drying compressor (1) is provided with an air inlet (13) and an air outlet (14) respectively, and the air outlet (14) is connected with the drying air inlet (10).

2. An air heating and drying apparatus with a two-stage condenser as set forth in claim 1, wherein: a recovery water tank (15) is arranged below the first-stage condenser (2) and the second-stage condenser (3) respectively, and a plurality of drain pipes (16) communicated with the recovery water tank (15) are arranged at the bottoms of the two condensation pipes (5) in the first-stage condenser (2) and the second-stage condenser (3) respectively.

3. An air heating and drying apparatus with a two-stage condenser as set forth in claim 1, wherein: condenser pipe (5) are including inside condensing chamber (17), and condensing chamber (17) lateral wall is first heat conduction pipe wall (18), and first heat conduction pipe wall (18) outside cover is equipped with second heat conduction pipe wall (19) with heating chamber (6) contact, has laid a plurality of refrigeration pieces (20) in the intermediate layer intracavity that first heat conduction pipe wall (18) and second heat conduction pipe wall (19) formed.

4. An air heating and drying apparatus with a two-stage condenser as set forth in claim 3, wherein: the heat absorbing surface of the refrigeration sheet (20) is attached to the first heat conducting pipe wall (18), and the heat radiating surface of the refrigeration sheet is attached to the second heat conducting pipe wall (19).

5. An air heating and drying apparatus with a two-stage condenser as set forth in claim 2, wherein: the drain pipe (16) is of a funnel-shaped structure with an opening facing the interior of the condensation chamber (17).

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