CN112807712A - Evaporator with a heat exchanger - Google Patents
Evaporator with a heat exchanger Download PDFInfo
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- CN112807712A CN112807712A CN202110007053.6A CN202110007053A CN112807712A CN 112807712 A CN112807712 A CN 112807712A CN 202110007053 A CN202110007053 A CN 202110007053A CN 112807712 A CN112807712 A CN 112807712A
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- gas
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- liquid material
- heat exchange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
- B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
- B01B1/005—Evaporation for physical or chemical purposes; Evaporation apparatus therefor, e.g. evaporation of liquids for gas phase reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/12—Mixing gases with gases with vaporisation of a liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/28—Jet mixers, i.e. mixers using high-speed fluid streams characterised by the specific design of the jet injector
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to evaporation equipment in coal chemical industry, in particular to an evaporator. The evaporimeter is including casing (1) that has the cavity and evaporation mechanism (8) and the gas-liquid separation mechanism (3) of setting in the cavity, and casing (1) is including inlet (21) that supply liquid material inflow and air inlet (23) that supply gas inflow, and evaporation mechanism (8) set up to heating and evaporation liquid material is in order to obtain gaseous state material, and casing (1) is including supplying gas with gas-state material mixes exhaust gas vent (2) that obtain, and gas-liquid separation mechanism (3) set up and are used for handling in gas vent (2) the gas mixture is in order to get rid of mix in the gas mixture liquid material. This evaporimeter is through setting up gas-liquid separation mechanism in gas vent department, is convenient for get rid of a small amount of liquid material of adulteration in the gas mixture, has prevented that liquid material from flowing into subsequent reactor along with the gas mixture, provides the powerful guarantee for the normal operating of reactor.
Description
Technical Field
The invention relates to evaporation equipment in coal chemical industry, in particular to an evaporator.
Background
Ethylene Glycol (MEG) is an important organic chemical raw material, has wide application, is mainly used for producing polyester fibers, antifreezing agents, unsaturated polyester resins, lubricants, plasticizers, nonionic surfactants, explosives and the like, and can also be used in the industries of coatings, photographic developing solutions, brake fluids, printing inks and the like.
At present, the ethylene glycol can adopt a petrochemical production route and a coal-based production route, and specifically, the gaseous oxalate and excessive hydrogen are subjected to a synthetic reaction in a hydrogenation reactor for preparing the ethylene glycol from coal, and the obtained reaction products are the ethylene glycol and byproducts. Wherein, gaseous oxalate is mainly obtained by gasifying liquid oxalate entering the interior of an oxalate evaporator, and simultaneously mixing the gaseous oxalate with hydrogen in the oxalate evaporator. However, the existing oxalate evaporator can only evaporate liquid oxalate to obtain gaseous oxalate, and cannot remove residual oxalate droplets in the gaseous oxalate, so that the part of oxalate droplets can enter a subsequent reactor along with a mixed gas of gaseous oxalate and hydrogen, so that the problems of coking, aging, activity reduction and the like of a catalyst in the reactor occur, and the normal operation of the reactor is influenced.
Disclosure of Invention
The invention aims to solve the problem that catalyst in a reactor is damaged because a gas with more residual oxalate liquid drops is sent to the reactor by the existing oxalate evaporator in the prior art, and provides an evaporator.
In order to achieve the above object, the present invention provides an evaporator, including a housing having a cavity, and an evaporation mechanism and a gas-liquid separation mechanism disposed in the cavity, the housing including a liquid inlet into which a liquid material flows and a gas inlet into which a gas flows, the evaporation mechanism being configured to heat and evaporate the liquid material to obtain a gaseous material, the housing including a gas outlet from which a mixture gas obtained by mixing the gas and the gaseous material is discharged, the gas-liquid separation mechanism being disposed at the gas outlet to process the mixture gas to remove the liquid material mixed in the mixture gas.
Optionally, the gas-liquid separation mechanism includes a cover body and a separation member, the cover body includes an air inlet through which the mixture gas in the casing flows and an air outlet communicated with the air outlet of the casing, and the separation member is disposed in the cover body and is capable of performing gas-liquid separation processing on the mixture gas flowing into the cover body, so that: the gas mixture obtained by separation is discharged out of the shell through the gas outlet of the cover body and the gas outlet in sequence, and the liquid material obtained by separation returns into the shell through the gas inlet of the cover body.
Optionally, the separating member is provided as a hinge structure;
preferably, the hinge structure comprises a main flap extending in a bending way for guiding the flow of the mixed gas, and a flow disturbing part capable of disturbing the flow of the mixed gas is arranged on the main flap;
more preferably, the spoiler is a flange folded from a bent portion of the main flap toward an upstream side of the mixed gas;
more preferably, the hinge structure includes a plurality of the primary flaps stacked and spaced apart from one another to divide the interior of the housing into a plurality of airflow channels.
Optionally, the evaporation mechanism includes a heat exchange element capable of transferring heat to the liquid material through a heat exchange medium.
Optionally, the heat exchange member includes a heat exchange shell isolated from the chamber and used for circulating the heat exchange medium, and the heat exchange shell includes a heat exchange pipe communicated with the chamber, and the heat exchange pipe can accommodate and circulate the liquid material to heat the liquid material.
Optionally, the heat exchange pipeline includes from the top down extension's center tube and winds a plurality of tubules of circumference interval distribution of center tube, the tubule with the center tube sets up to the bottom intercommunication.
Optionally, the heat exchange shell is spaced from the bottom wall of the shell, so that the central tube and the thin tube can be communicated through the bottom of the chamber; and/or
The evaporator comprises a liquid guide pipe, one end of the liquid guide pipe is communicated with the air inlet of the cover body, and the other end of the liquid guide pipe penetrates through the central pipe and is radially spaced from the central pipe.
Optionally, the evaporator includes a mixing mechanism communicated with the air inlet of the housing, and the mixing mechanism is disposed above the evaporation mechanism and has a nozzle port inclined downward, so that the gas can be injected downward through the nozzle port toward the gaseous material discharged from the evaporation mechanism and flowing upward to be mixed to obtain the mixed gas.
Optionally, the mixing mechanism includes a main pipe and a plurality of branch pipe assemblies distributed at intervals along the extending direction of the main pipe, and the nozzles are formed on the branch pipe assemblies; preferably, the branch pipe assembly includes a branch pipe and a plurality of nozzles spaced apart in an extending direction of the branch pipe, the nozzles being provided to extend obliquely downward from the branch pipe and formed with the spout at an end remote from the branch pipe.
Optionally, the casing is a cylindrical pipe, the gas exhaust port of the casing and the gas-liquid separation mechanism are arranged at the top of the casing, the gas inlet and the liquid inlet of the casing are arranged in the middle of the casing, and the evaporation mechanism is arranged at the bottom of the casing.
According to the technical scheme, the invention provides the evaporator, the evaporation mechanism is arranged in the cavity of the shell, so that the evaporation mechanism can evaporate liquid materials to obtain gaseous materials, and the gaseous materials can be mixed with gas in the cavity of the shell to form mixed gas; and, set up gas-liquid separation mechanism in gas vent department, be convenient for get rid of a small amount of liquid material that mixes in the gas mixture, prevented that liquid material from flowing into subsequent reactor along with the gas mixture, provide the powerful guarantee for the normal operating of reactor. The material is taken as the oxalate for illustration, and the gas mixture of the gaseous oxalate and the gas can be discharged out of the shell cavity after the liquid oxalate is removed by the gas-liquid separation mechanism so as to flow into a subsequent reactor to be used as a chemical raw material for producing the ethylene glycol, thereby avoiding the problems of coking, aging, activity reduction and the like of the catalyst in the reactor caused by the liquid oxalate flowing into the reactor along with the gas mixture, and ensuring the normal operation of the reactor.
Drawings
FIG. 1 is a schematic view of an evaporator according to the present invention;
FIG. 2 is a cross-sectional view of the evaporator shown in FIG. 1 at a-a, showing the specific configuration of the mixing mechanism in a top (or bottom) view;
fig. 3 is a cross-sectional view of the evaporator shown in fig. 1 at b-b, showing the specific structure of the separator in a top view (or bottom view).
Description of the reference numerals
1. A housing; 2. an exhaust port; 3. a gas-liquid separation mechanism; 4. a cover body; 5. a separating member; 6. a main folded plate; 7. flanging; 8. an evaporation mechanism; 9. a spoiler; 10. a heat exchange conduit; 11. a central tube; 12. a thin tube; 13. a catheter; 14. a mixing mechanism; 15. a main pipe; 16. a branch pipe; 17. a nozzle; 18. a fixed block; 19. a gas loop; 20. a temperature measuring part; 21. a liquid inlet; 22. a heat exchange shell; 23. an air inlet.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides an evaporator, as shown in fig. 1-3, the evaporator comprises a shell 1 with a cavity, and an evaporation mechanism 8 and a gas-liquid separation mechanism 3 which are arranged in the cavity, wherein the shell 1 comprises a liquid inlet 21 for liquid material to flow in and a gas inlet 23 for gas to flow in, the evaporation mechanism 8 is arranged to be capable of heating and evaporating the liquid material to obtain gaseous material, the shell 1 comprises a gas outlet 2 for discharging mixed gas obtained by mixing the gas and the gaseous material, and the gas-liquid separation mechanism 3 is arranged at the gas outlet 2 and is used for processing the mixed gas to remove the liquid material doped in the mixed gas. Wherein the liquid material can be in various reasonable forms, such as oxalate, oxamide, etc., and the gaseous material obtained by evaporation is correspondingly gaseous oxalate, gaseous oxamide, etc.; the gas may be in various reasonable forms, e.g., hydrogen, etc.; taking the gaseous material as gaseous oxalate and the gas as hydrogen as an example, the mixed gas is correspondingly the mixed gas of gaseous oxalate and hydrogen, and a small amount of oxalate droplets are inevitably doped in the mixed gas.
According to the technical scheme, the invention provides the evaporator, the evaporation mechanism is arranged in the cavity of the shell 1, so that the evaporation mechanism can evaporate liquid materials to obtain gaseous materials, and the gaseous materials can be mixed with gas in the cavity of the shell to form mixed gas; and, set up gas-liquid separation mechanism 3 in gas vent 2 department, be convenient for get rid of a small amount of liquid material that mixes in the gas mixture, prevented that liquid material from flowing into subsequent reactor along with the gas mixture, provide the powerful guarantee for the normal operating of reactor. Taking the material as oxalate for illustration below, the gas mixture of gaseous oxalate and gas can be discharged from the cavity of the shell 1 after the liquid oxalate is removed by the gas-liquid separation mechanism, so as to flow into the subsequent reactor as the chemical raw material for producing ethylene glycol, thereby avoiding the problems of coking, aging, activity reduction and the like of the catalyst in the reactor caused by the liquid oxalate flowing into the reactor along with the gas mixture, and ensuring the normal operation of the reactor.
As shown in fig. 1, the gas-liquid separation mechanism 3 includes a cover 4 and a separator 5, the cover 4 includes an air inlet into which the mixture gas in the casing 1 flows and an air outlet communicating with the air outlet 2 of the casing 1, and the separator 5 is provided in the cover 4 and is capable of performing a gas-liquid separation process on the mixture gas flowing into the cover 4 so that: the separation obtains the gas mixture via in proper order the gas outlet of the cover body 4 with the 2 discharges of gas vent casing 1, and, the separation obtains the liquid material via the gas inlet of the cover body 4 returns in the casing 1, simplified gas-liquid separation mechanism 3's overall structure, avoided the gas mixture not directly discharge casing 1 through the gas-liquid separation of gas-liquid separation mechanism 3, further prevented that the liquid material from directly flowing into subsequent reactor along with the gas mixture in, guaranteed the normal operating of reactor. The cover 4 may be made of various materials, for example, stainless steel, etc., which is corrosion-resistant.
The separator 5 may be in various forms as long as it can separate the gas and the liquid of the gas mixture flowing therethrough, and may have a wire mesh structure, for example; preferably, the separating member 5 is configured to have a hinge structure, and the separating member 5 is configured to be capable of adhering the liquid material by guiding and directly contacting the gas mixture to separate the liquid material from the gas mixture, and the hinge structure significantly prolongs a flow path of the gas mixture, thereby ensuring a separation effect of the liquid material in the gas mixture.
Preferably, the hinge structure includes the main folded plate 6 that extends of buckling for be used for guiding the flow of gas mixture, be provided with on the main folded plate 6 and disturb the vortex portion of the flow of gas mixture, simplified the overall structure of separator 5, through set up vortex portion on main folded plate 6 for the flow path of gas mixture can further prolong under the interference effect of vortex portion, optimized the separation effect of the liquid material in the gas mixture.
The spoiler portion may be in various forms as long as it can disturb the flow of the mixture, for example, it may be provided as protrusions and/or grooves distributed in a checkerboard manner along the board surface of the main flap 6; preferably, the turbulence part is a flanging 7 formed by folding the bending part of the main folded plate 6 towards the upstream side of the mixed gas, the structure is simple, the manufacture and the processing are convenient, on the basis that the main folded plate 6 guides the mixed gas to flow in a reversing way at the bending part, the interference effect on the air flow formed by the mixed gas is strengthened through the flanging 7, and the separation effect of the liquid material in the mixed gas is further optimized. Further, the cuff 7 may have various forms, for example, an arc-shaped structure, a wave-shaped structure, etc. extending from the corner of the main flap 6 toward the upstream side, or, as shown in fig. 3, a bent structure, where the cuff 7 includes a first plate and a second plate connected, the first plate is arranged to extend from the corner of the main flap 6 toward the upstream side along the extending direction of the downstream plate of the main flap 6, the second plate is arranged parallel to the upstream plate of the main flap 6 and is formed by folding the first plate away from the corner of the main flap 6 toward the upstream side, and further, in order to optimize the turbulent flow effect, the length of the second plate is greater than the length of the first plate in the flow direction of the mixture; of course, the flanges 7 may be provided on the acute included angle side of the main flap 6 at the corner, or may be provided on the obtuse included angle side of the main flap 6 at the corner as shown in fig. 3.
More preferably, as shown in fig. 1 and 3, the hinge structure includes a plurality of main flaps 6 stacked on top of each other and spaced apart from each other to divide the interior of the cover 4 into a plurality of airflow channels, so as to guide the flow of the mixture, thereby significantly enhancing the gas-liquid separation effect of the separator. Wherein the plurality of main flaps 6 may be stacked in any direction, preferably in a horizontal direction.
Further, evaporation mechanism 8 include can be through heat transfer medium to liquid material heat transfer's heat transfer piece, simple structure can the rapid heating liquid material through heat transfer piece, has still reduced heat transfer medium's temperature effectively, has compromise evaporation effect and heat and has recycled, has reduced the running cost of evaporimeter.
The heat exchange piece can contact and heat the liquid material through a single surface such as the upper surface or the lower surface of the heat exchange shell; preferably, the heat exchange member can contain and heat the liquid material omnidirectionally by arranging the heat exchange channel 10 on the heat exchange shell 22, specifically, as shown in fig. 1, the heat exchange member includes the heat exchange shell 22 isolated from the chamber and used for circulating the heat exchange medium, the heat exchange shell 22 includes the heat exchange pipe 10 communicated with the chamber, the heat exchange pipe 10 can contain and circulate the liquid material to heat the liquid material, which is beneficial to sufficiently heating the liquid material, improves the heating uniformity of the liquid material, increases the heating efficiency of the liquid material, and accelerates the generation of the gaseous material. The heat exchange medium can be in various forms, and the temperature is higher than the boiling point of the liquid material, such as water vapor and the like, so that the heat exchange medium is safe, environment-friendly and low in cost; the inlet and outlet of the heat exchange shell 22 are respectively disposed at the upper left side and the lower right side as viewed in fig. 1, and in order to extend the flow path of the heat exchange medium, the heat exchange shell 22 may further include a plurality of spoilers 9 extending horizontally and arranged in a staggered manner inside.
Further, the heat exchange pipeline 10 comprises a central pipe 11 extending from top to bottom and a plurality of thin pipes 12 distributed at intervals around the central pipe 11 in the circumferential direction, and the thin pipes 12 are communicated with the central pipe 11 at the bottom, so that the liquid material mainly flows from top to bottom through the central pipe 11 with a larger pipe diameter, the liquid material can smoothly and quickly flow to the heat exchange shell 22 of the evaporation mechanism 8, and the liquid material is more heated and evaporated from the thin pipes 12 with a smaller pipe diameter, the convection probability between the gaseous material and the liquid material obtained by evaporation is reduced, the content of the liquid material carried in the gaseous material is reduced, the liquid material is effectively prevented from flowing into a subsequent reactor along with the mixed gas, and the normal operation of the reactor is effectively guaranteed; in addition, the material can form a good-operation gas-liquid circulation path at the heat exchange shell 22 of the evaporation mechanism 8 through the central tube 11 and the plurality of thin tubes 12, which is beneficial to improving the evaporation efficiency and evaporation effect of the liquid material.
Further, heat exchange shell 22 with the diapire of casing 1 keeps the interval, so that center tube 11 with tubule 12 can pass through the cavity bottom intercommunication, and the structure is simpler, and the liquid material of being convenient for carries out preheating treatment through heat exchange shell 22 in the bottom space department of casing 1 that is located heat exchange shell 22 below, is favorable to providing the evaporation efficiency of liquid material. As shown in fig. 1, in order to enhance the flow of the liquid material at the bottom space of the shell 1, the evaporator further comprises a gas loop 19, an inlet of the gas loop 19 is positioned outside the shell 1 and can introduce medium-pressure gas (for example, hydrogen, and the pressure of the medium-pressure gas formed by the hydrogen is greater than the hydraulic pressure of the liquid material in the shell so as to be capable of injecting gas into the shell), the gas loop 19 comprises a plurality of gas nozzles to inject the medium-pressure gas, so as to stir the liquid material at the bottom space of the shell 1, promote the rapid evaporation of the liquid material, and further accelerate the gas-liquid circulation at the heat exchange shell 22; of course, the inlet to the gas loop 19 is normally closed and can be opened and briefly delivered after a period of evaporator operation.
Further, the evaporator includes liquid guide pipe 13, the one end of liquid guide pipe 13 with the air inlet intercommunication of cover body 4, the other end of liquid guide pipe 13 runs through center tube 11 sets up, and with have radial interval between the center tube 11, be favorable to carrying the evaporation plant with all liquid material that gas-liquid separation mechanism 3 separation obtained, simple high-efficient to liquid drops phenomenon such as splash appears when having prevented liquid material whereabouts, has still avoided liquid material to form the convection current with the gas mixture when the whereabouts and has sneaked into in the gas mixture again. The cover 4 may have various shapes, as shown in fig. 1, the air inlet of the cover 4 includes a first opening (for example, an arrow shown in fig. 1) opening toward the horizontal direction and a second opening downward vertically, wherein the first opening is open for the inflow of the mixture, and the second opening is communicated with the liquid guide pipe 13 for the discharge of the separated liquid material.
Further, as shown in fig. 1 and 2, the evaporator includes a mixing mechanism 14 communicated with the air inlet 23 of the housing 1, the mixing mechanism 14 is disposed above the evaporation mechanism and has a downward-inclined nozzle, so that the gas can be injected downwards through the nozzle towards the upward-flowing gaseous material discharged by the evaporation mechanism to mix to obtain the mixed gas, thereby facilitating the sufficient and uniform mixing of the gas and the gaseous material and further facilitating the blowing off of a part of the liquid material doped in the gaseous material.
Further, the mixing mechanism 14 comprises a main pipe 15 and a plurality of branch pipe assemblies distributed at intervals along the extending direction of the main pipe 15, and the nozzles are formed on the branch pipe assemblies, so that the spraying and sweeping area of the mixing mechanism 14 is remarkably enlarged, and the gas and the gaseous materials are more sufficiently and uniformly mixed. Specifically, the mixing mechanism 14 may take various forms, for example, the plurality of branch pipe assemblies may be linearly arranged in the main pipe 15 in the axial direction of the main pipe 15, or may be arranged in the main pipe 15 along a spiral path, or may be divided into two groups arranged on diametrically opposite sides of the main pipe 15 as shown in fig. 2, each group including the plurality of branch pipe assemblies linearly arranged in the axial direction of the main pipe 15. In order to improve the installation firmness of the main pipe 15, a fixing block 18 is arranged in the shell 1 and used for supporting and positioning the main pipe; further, other small fixing blocks are also included in the housing 1 for supporting and positioning the manifold assembly.
Preferably, the branch pipe assembly includes a branch pipe 16 and a plurality of nozzles 17 spaced apart along an extending direction of the branch pipe 16, the nozzles 17 being disposed to extend obliquely downward from the branch pipe 16 and being formed with the spouting holes at an end away from the branch pipe 16, the number of the spouting holes being significantly increased, and a distribution area of the spouting holes being enlarged, which strongly ensures uniform mixing between the gas and the gaseous materials. Wherein the branch pipe assembly may be in various forms, for example, in order to further optimize the mixing effect of the mixture, the plurality of nozzles 17 may be divided into two groups of nozzle assemblies, each group of nozzle assemblies includes a plurality of nozzles 17 arranged at intervals in the axial direction of the branch pipe, the two groups of nozzle assemblies are alternately distributed in the axial direction of the branch pipe, and the nozzles 17 extend in the radial direction of the branch pipe 16 and are inclined at an angle of 80 ° to 40 ° from a longitudinal section in the vertical direction of the branch pipe 16, that is, a central angle between any two nozzles of the two groups of nozzle assemblies is 80 ° to 160 °, preferably, about 120 °.
As shown in fig. 1, casing 1 is the column pipe, casing 1's gas vent 2 with gas-liquid separation mechanism 3 sets up the top of casing 1, casing 1's air inlet 23 and inlet 21 set up the middle part of casing 1, evaporation mechanism sets up the bottom of casing 1, and the structure is simpler, and the gaseous state material that the evaporation mechanism 8 of being convenient for produced rises smoothly to gas-liquid separation mechanism 3 after being heated and carries out gas-liquid separation and handle, has improved the evaporation efficiency of evaporimeter. Further, in order to ensure the safe operation of the evaporator, a temperature measuring part 20 can be arranged in the shell 1 of the evaporator, so that the temperature in the evaporator can be monitored in real time, and the operation fault of the evaporator due to overhigh or overlow temperature can be prevented. According to an embodiment of the present invention, the housing 1 of the evaporator comprises two parts arranged up and down as shown in fig. 1, the upper part of the housing 1 is provided with the exhaust port 2, the intake port 23 and the intake port 21 and is used for accommodating the gas-liquid separation mechanism 3 and the mixing mechanism 14, the lower part of the housing 1 is used for accommodating the evaporation mechanism and the gas loop pipe 19, and the upper part of the housing 1 and the lower part of the housing 1 are assembled together through a flange arranged outside the housing 1; of course, the bottom of the lower part of the housing is provided with a liquid discharge port, and when the evaporator needs to be stopped or the liquid level in the housing is too high in use, the liquid discharge port is opened to discharge all or part of the liquid material in the housing correspondingly.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications may be made to the technical solution of the invention, and in order to avoid unnecessary repetition, various possible combinations of the invention will not be described further. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The utility model provides an evaporator, its characterized in that, the evaporator is including casing (1) that has the cavity and setting up evaporation mechanism (8) and gas-liquid separation mechanism (3) in the cavity, casing (1) is including liquid inlet (21) that supply the liquid material inflow and air inlet (23) that supply the gas inflow, evaporation mechanism (8) set up to can heat and evaporate the liquid material is in order to obtain gaseous state material, casing (1) is including supplying gas with gas-gas mixture exhaust gas vent (2) that gaseous state material mixes the result, gas-liquid separation mechanism (3) set up gas vent (2) department is used for handling the gas mixture is in order to get rid of mix in the gas mixture the liquid material.
2. The evaporator according to claim 1, wherein the gas-liquid separation mechanism (3) includes a cover (4) and a separator (5), the cover (4) includes an air inlet into which the mixture gas in the casing (1) flows and an air outlet communicating with an air outlet (2) of the casing (1), the separator (5) is provided in the cover (4) and is capable of subjecting the mixture gas flowing into the cover (4) to a gas-liquid separation process so that: the gas mixture obtained through separation is discharged out of the shell (1) through the gas outlet of the cover body (4) and the gas outlet (2) in sequence, and the liquid material obtained through separation returns into the shell (1) through the gas inlet of the cover body (4).
3. An evaporator according to claim 2,
the separating piece (5) is of a hinge structure;
preferably, the hinge structure comprises a main folding plate (6) extending in a bending way for guiding the flow of the mixed gas, and a flow disturbing part capable of disturbing the flow of the mixed gas is arranged on the main folding plate (6);
more preferably, the spoiler is a turned-over edge (7) turned over from the bent portion of the main folded plate (6) toward the upstream side of the air-fuel mixture;
more preferably, the hinge structure includes a plurality of the main flaps (6) stacked and spaced apart from each other to divide the interior of the housing (4) into a plurality of airflow passages.
4. An evaporator according to claim 3 wherein the evaporation means (8) comprises a heat transfer element capable of transferring heat to the liquid material via a heat transfer medium.
5. An evaporator according to claim 4 wherein the heat exchange member comprises a heat exchange shell (22) isolated from the chamber and adapted to circulate the heat exchange medium, the heat exchange shell (22) comprising heat exchange tubes (10) communicating with the chamber, the heat exchange tubes (10) being adapted to receive and circulate the liquid material to heat the liquid material.
6. An evaporator according to claim 5 wherein the heat exchange tube (10) comprises a central tube (11) extending from top to bottom and a plurality of thin tubes (12) distributed around the central tube (11) at intervals in the circumferential direction, the thin tubes (12) being arranged in bottom communication with the central tube (11).
7. An evaporator according to claim 6 wherein the heat exchange shell (22) is spaced from the bottom wall of the housing (1) to enable the central tube (11) and the tubules (12) to communicate through the chamber bottom; and/or
The evaporator comprises a liquid guide pipe (13), one end of the liquid guide pipe (13) is communicated with the air inlet of the cover body (4), and the other end of the liquid guide pipe (13) penetrates through the central pipe (11) and is radially spaced from the central pipe (11).
8. An evaporator according to claim 1 comprising a mixing mechanism (14) communicating with the air inlet (23) of the housing (1), the mixing mechanism (14) being disposed above the evaporation mechanism (8) and having downwardly inclined jets, so as to be able to inject the gas downwardly through the jets towards the upwardly flowing gaseous material discharged from the evaporation mechanism (8) for mixing to obtain the mixture.
9. An evaporator according to claim 8 wherein the mixing mechanism (14) comprises a main pipe (15) and a plurality of branch pipe assemblies spaced apart in the extending direction of the main pipe (15), the nozzles being formed on the branch pipe assemblies; preferably, the branch pipe assembly comprises a branch pipe (16) and a plurality of nozzles (17) distributed at intervals along the extension direction of the branch pipe (16), the nozzles (17) are arranged to extend obliquely downward from the branch pipe (16) and are formed with the spout at one end away from the branch pipe (16).
10. The evaporator according to any one of claims 1 to 9, wherein the shell (1) is a cylindrical pipe, the exhaust port (2) and the gas-liquid separation mechanism (3) of the shell (1) are arranged at the top of the shell (1), the gas inlet (23) and the liquid inlet (21) of the shell (1) are arranged at the middle of the shell (1), and the evaporation mechanism (8) is arranged at the bottom of the shell (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007053.6A CN112807712B (en) | 2021-01-05 | 2021-01-05 | Evaporator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007053.6A CN112807712B (en) | 2021-01-05 | 2021-01-05 | Evaporator |
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| CN112807712A true CN112807712A (en) | 2021-05-18 |
| CN112807712B CN112807712B (en) | 2023-05-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155348A (en) * | 2022-06-10 | 2022-10-11 | 中国石油化工股份有限公司 | Mixer for mixing ethylene and oxygen |
| CN115756031A (en) * | 2022-10-12 | 2023-03-07 | 东方电气集团东方汽轮机有限公司 | Control method and system for wound-tube evaporator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115155348B (en) * | 2022-06-10 | 2024-02-23 | 中国石油化工股份有限公司 | Mixer for mixing ethylene and oxygen |
| CN115756031A (en) * | 2022-10-12 | 2023-03-07 | 东方电气集团东方汽轮机有限公司 | Control method and system for wound-tube evaporator |
| CN115756031B (en) * | 2022-10-12 | 2023-10-10 | 东方电气集团东方汽轮机有限公司 | Method and system for controlling coiled tube evaporator |
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| CN112807712B (en) | 2023-05-02 |
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