CN112587951B - Organic solvent low temperature recovery unit - Google Patents

Organic solvent low temperature recovery unit Download PDF

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Publication number
CN112587951B
CN112587951B CN202011391787.0A CN202011391787A CN112587951B CN 112587951 B CN112587951 B CN 112587951B CN 202011391787 A CN202011391787 A CN 202011391787A CN 112587951 B CN112587951 B CN 112587951B
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chamber
tube bundle
connecting rod
connecting plate
inflow chamber
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CN202011391787.0A
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CN112587951A (en
Inventor
仰劲松
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Anhui Xingxing Century Air Conditioning And Refrigeration Equipment Co ltd
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Anhui Xingxing Century Air Conditioning And Refrigeration Equipment Co ltd
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Publication of CN112587951A publication Critical patent/CN112587951A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033Other features
    • B01D5/0051Regulation processes; Control systems, e.g. valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0096Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Automation & Control Theory (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses a low-temperature recovery device for an organic solvent, which comprises a condenser, wherein a condensation tube bundle is arranged at the middle section of the condenser, an inflow chamber and an outflow chamber are arranged in parallel relative to the top end of the condensation tube bundle, a rotary chamber is arranged relative to the bottom end of the condensation tube, and a refrigerant flows through the outer edge of the condensation tube bundle; a concentrator, wherein the concentrated VOCs waste gas stream desorbed from the concentrator is guided to the inflow chamber, flows to the rotation chamber through a condensation tube bundle arranged opposite to the inflow chamber, flows to the outflow chamber through a condensation tube bundle arranged opposite to the outflow chamber, and is discharged; the liquid VOCs are dripped into the rotary chamber and then recovered by the recovery cylinder connected to the rotary chamber, and the recovery device further comprises a pressure stabilizing box and a cleaning device.

Description

Organic solvent low temperature recovery unit
Technical Field
The invention relates to the technical field of recovery devices, in particular to a low-temperature recovery device for an organic solvent.
Background
Organic solvents widely used in life and production are Volatile to gases in greenhouses, so called Volatile Organic Compounds (VOCs), and most VOCs have certain toxicity to human bodies and need to be purified; in addition, in the purification treatment of the VOCs by the related manufacturers, the VOCs are firstly adsorbed, then concentrated and desorbed, and then incinerated, or the VOCs condensed and absorbed are purified and reused by installing a condenser on site for recovery treatment, and because the concentration of the VOCs is greatly reduced, the load of the downstream-end waste gas treatment equipment can be reduced, the service life of the final treatment equipment can be prolonged, and the overall treatment effect of the purification treatment equipment can be effectively improved.
Next, as shown in fig. 1, in the conventional condenser 10, a condensing tube bundle 11 is disposed at the middle section, an inflow chamber 12 and an outflow chamber 13 are disposed in parallel with respect to the top end of the condensing tube bundle 11, and a revolving chamber 14 is disposed with respect to the bottom end of the condensing tube bundle 11, and a refrigerant is made to flow through the outer edge of the condensing tube bundle 11; however, the concentrated VOCs exhaust stream desorbed by the concentrator 20 is directed to the inlet chamber 12 and flows through the condenser bundles 11 disposed opposite to the inlet chamber 12 to the turn around chamber 14, and flows through the condenser bundles 11 disposed opposite to the outlet chamber 13 for discharge; the gaseous VOCs are condensed into liquid in the process of flowing through the condenser tube bundle 11, and then drop to the rotary chamber 14 and are recovered by a recovery drum 30 connected to the rotary chamber 14.
Because of the conventional installation of the condenser with the upward inflow chamber 12 and outflow chamber 13, in the initial condensation stage just entering the condensation tube bundle 11 from the inflow chamber 12, a large amount of liquid VOCs will be rapidly condensed due to the high concentration of VOCs in the exhaust gas flow, and this large amount of liquid VOCs must flow from the upper end to the lower end of the tubes of the condensation tube bundle 11 (the retention time is very long), so that a liquid film with considerable thickness is easily accumulated in the tubes of the condensation tube bundle 11, and the thicker the liquid film, the poorer the heat and mass transfer efficiency (i.e. the poorer the condensation effect) is caused, and even the gas flow cannot pass through due to the liquid plug and the pressure fluctuation may be caused.
Based on this, a modification of the existing condenser is required.
Disclosure of Invention
The invention aims to provide a low-temperature recovery device for an organic solvent, which solves the problem of poor condensation effect caused by the fact that a thick liquid film is easy to accumulate due to the flowing direction of a condensate.
In order to achieve the purpose, the invention provides the following technical scheme: a low-temperature recovery device for organic solvent comprises a condenser, wherein a condensing tube bundle is arranged in the middle section of the condenser, an inflow chamber and an outflow chamber are arranged in parallel relative to the top end of the condensing tube bundle, a rotary chamber is arranged relative to the bottom end of the condensing tube, and a refrigerant flows through the outer edge of the condensing tube bundle; a concentrator, the concentrated VOCs waste gas stream desorbed from the concentrator is guided to the inflow chamber, flows to the revolving chamber through a condensing tube bundle arranged corresponding to the inflow chamber, flows to the outflow chamber through a condensing tube bundle arranged corresponding to the outflow chamber, and is discharged; a recycling cylinder, the liquid VOCs dropping to the rotary chamber and being recycled by the recycling cylinder connected to the rotary chamber, the recycling device further comprises
The pressure stabilizing box is arranged outside the inflow chamber, and the concentrated VOCs waste gas airflow generated by the concentrator passes through the pressure stabilizing box and is discharged into the inflow chamber into airflow with fixed intensity;
the cleaning device is arranged in the inflow chamber and comprises a turbine, a turbine box, a cam, a bracket, a guide part, a transmission rod and a cleaner, wherein the turbine box is communicated with the inlet of the inflow chamber and is provided with an outlet, the turbine is horizontally and rotatably arranged in the turbine box, a rotating shaft of the turbine extends out of the turbine box, the center of the cam is fixedly arranged on the rotating shaft, the transmission rod is arranged on the cam, one end of the bracket is fixedly connected with the transmission rod, the guide part is arranged in the inflow chamber and is fixedly connected with the other end of the bracket, and the cleaner is arranged in an inner cavity of the condensation pipe opposite to the inflow chamber and is fixedly connected with the bracket.
Further, the clearance ware include center pin, ring bearing frame, flexible link pole, clearance ring sum connecting rod, the lateral surface of clearance ring cooperate with the inner chamber slidable of condenser pipe, the clearance ring is provided with a plurality ofly to utilize the connecting rod with a plurality of clearance ring equidistance vertical layout, ring bearing frame be provided with a plurality ofly, and equidistance fixed setting is on the center pin, flexible link pole include first connector, second connector, head rod, second connecting rod, spring, first connecting plate and second connecting plate, first connector and second connector fixed respectively set up the medial extremity at the outside end of head rod and second connecting rod, the fixed suit of spring on first connector and second connecting rod, the medial extremity of the outside end of first connector and second connector fixed respectively be provided with first connecting plate and second connecting plate, first connecting plate and second connecting plate fixed respectively set up on ring bearing frame's side and connecting rod, first connecting plate and second connecting plate all are the fixed setting of 45 contained angles with ground.
Furthermore, the surge tank comprises a tank body and a pressure control valve.
Further, the guiding member comprises a guiding sleeve and a guiding rod, the guiding rod is arranged on the bracket, the guiding sleeve is fixedly arranged in the inflow chamber, and the guiding rod is slidably arranged in the guiding sleeve.
Has the beneficial effects that:
this application has realized that gaseous stability is controllable through the gas of steady pressure of surge tank input stability pressure in to the inflow room, and the cleaning device who sets up can utilize the gas of fixed pressure as power, can clear up the condensation tube bank inner chamber relative to the inflow room, solves because of the condensate flow direction easily accumulates the problem that thick liquid film causes the condensation effect poor.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the cleaning apparatus of the present invention;
FIG. 3 is a top view of the cleaner of the present invention;
FIG. 4 is a front view of the sweeper of the present invention;
fig. 5 is a schematic view of the arrangement of the first connecting plate or the second connecting plate of the present invention.
In the figure: condenser-10, condenser tube bundle-11, inflow chamber-12, outflow chamber-13, rotary chamber-14, concentrator-20, recovery cylinder-30, pressure stabilizing tank-40, tank-401, pressure control valve-402, cleaning device-50, turbine-51, turbine tank-52, cam-53, bracket-54, guide-55, transmission rod-56, cleaner-57, rotating shaft-58, guide sleeve-550, guide rod-551, central shaft-560, annular bearing seat-561, cleaning ring-562, connecting rod-563, flexible connecting rod-564, first connecting rod-565, second connecting rod-566, first connecting rod-567, second connecting rod-568, spring-569, first connecting rod-570 and second connecting rod-571.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to the drawings, the present invention provides an embodiment: a low-temperature recovery device for organic solvent comprises a condenser 10, wherein a condensing tube bundle 11 is arranged in the middle section of the condenser 10, an inflow chamber 12 and an outflow chamber 13 are arranged in parallel relative to the top end of the condensing tube bundle 11, a rotary chamber 14 is arranged relative to the bottom end of the condensing tube 11, and a refrigerant flows through the outer edge of the condensing tube bundle 11; a concentrator 20, wherein the concentrated VOCs waste gas stream desorbed from the concentrator 20 is guided to the inlet chamber 12, flows through the condensing tube bundle 11 disposed opposite to the inlet chamber 12 to the turn chamber 14, and flows through the condensing tube bundle 11 disposed opposite to the outlet chamber 13 for discharge; a recycling bin 30, the liquid VOCs dropping to the rotary chamber 14 and being recycled by the recycling bin 30 connected to the rotary chamber 14, the recycling apparatus further comprising
The pressure stabilizing box 40 is arranged outside the inflow chamber 12, the concentrated VOCs waste gas airflow generated by the concentrator 20 passes through the pressure stabilizing box 40 and then is discharged into the inflow chamber 12 with fixed strength, and the pressure stabilizing box 40 comprises a box body 401 and a pressure control valve 402.
A cleaning device 50, said cleaning device 50 is disposed in the inflow chamber 11, said cleaning device 50 comprises a turbine 51, a turbine box 52, a cam 53, a bracket 54, a guide 55, a transmission rod 56 and a cleaner 57, said turbine box 52 is communicated with the inlet of the inflow chamber 12, and the turbine box 52 has an outlet, said turbine 51 is horizontally and rotatably disposed in the turbine box 52, and the rotating shaft 58 of the turbine 51 extends out of the turbine box 52, the center of said cam 53 is fixedly disposed on the rotating shaft 58, said transmission rod 56 is disposed on the cam 53, one end of said bracket 54 is fixedly connected with the transmission rod 56, said guide 55 is disposed in the inflow chamber 12 and fixedly connected with the other end of the bracket 54, said cleaner 57 is disposed in the inner cavity of the condensation pipe 11 opposite to the inflow chamber 12 and fixedly connected with the bracket 54, said guide 55 comprises a guide sleeve 550 and a guide rod 551, said guide rod 551 is disposed on the bracket 54, said guide sleeve 550 is fixedly disposed in the inflow chamber 12, and said guide rod 551 is slidably disposed in the guide sleeve 550.
Specifically, the cleaner 56 includes a central shaft 560, an annular bearing seat 561, a plurality of cleaning rings 562, a connecting rod 563, and a flexible connecting rod 564, an outer side surface of each of the cleaning rings 562 slidably fits an inner cavity of the condenser tube 11, the plurality of cleaning rings 562 are disposed, and the plurality of cleaning rings 562 are vertically disposed at equal intervals by using the connecting rod 563, the plurality of annular bearing seats 561 are disposed and fixedly disposed at equal intervals on the central shaft 560, the flexible connecting rod 564 includes a first connector 565, a second connector 566, a first connecting rod 567, a second connecting rod 568, a spring 569, a first connecting plate 570, and a second connecting plate 565, the first connector 565 and the second connector 566 are fixedly disposed at an outer side end of the first connecting rod 567 and an inner side end of the second connecting rod 571, the spring 569 is mounted on the first connecting rod 567 and the second connecting rod 571, the outer side end of the first connector 566 and the inner side end of the second connector 571 are fixedly disposed on the first connecting rod 567 and the second connecting rod 568, the second connecting plate 571 is fixedly disposed at an included angle with the annular bearing seat 561, and the second connecting plate 570 are disposed at an included angle with the ground surface 45 of the annular bearing seat 561.
The working principle is as follows:
the gas with fixed strength enters the turbine box 52, the gas blows the turbine 51 to rotate, and then drives the cam 53 to rotate, the transmission rod 56 follows to realize lifting, the lifting transmission rod 56 drives the bracket 54 to lift, the bracket 54 drives the cleaner 57 to lift,
the cleaning ring 562 of the cleaning device 57 can clean the inner side surface of the condensation tube bundle 11, because the flexible connecting rod 564 is arranged between the central shaft 560 and the cleaning ring 562, the flexible connecting rod 564 allows the cleaning ring 562 to relatively move relative to the annular bearing seat 561, the spring 569 provides elastic force, so far, the cleaning ring 56 can have a vibration effect, the cleaning effect is increased, after the gas in the inflow chamber 12 enters the condensation tube bundle 11, forward and downward pressure can be applied to the first connecting plate 570 and the second connecting plate 571, an included angle of 45 degrees is formed between the first connecting plate 570 and the second connecting plate 571 and the horizontal plane, the cleaning ring 562 has a rotating action, the cleaning effect is further increased, and the use effect is good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Claims (2)

1. A low-temperature recovery device for organic solvent comprises a condenser, wherein a condensing tube bundle is arranged in the middle section of the condenser, an inflow chamber and an outflow chamber are arranged in parallel relative to the top end of the condensing tube bundle, a rotary chamber is arranged relative to the bottom end of the condensing tube, and a refrigerant flows through the outer edge of the condensing tube bundle; a concentrator, wherein the concentrated VOCs waste gas stream desorbed from the concentrator is guided to the inflow chamber, flows to the rotation chamber through a condensation tube bundle arranged opposite to the inflow chamber, flows to the outflow chamber through a condensation tube bundle arranged opposite to the outflow chamber, and is discharged; a recovery drum, in which the liquid VOCs are dropped into said rotary chamber and recovered by means of recovery drum connected to said rotary chamber
The pressure stabilizing box is arranged outside the inflow chamber, and concentrated VOCs waste gas airflow generated by the concentrator passes through the pressure stabilizing box and then is discharged into the inflow chamber into airflow with fixed intensity;
the cleaning device is arranged in the inflow chamber and comprises a turbine, a turbine box, a cam, a bracket, a guide part, a transmission rod and a cleaner, wherein the turbine box is communicated with the inlet of the inflow chamber and is provided with an outlet;
the cleaner comprises a central shaft, a plurality of annular bearing seats, a flexible connecting rod, a plurality of cleaning rings and connecting rods, wherein the outer side surface of each cleaning ring is in slidable fit with an inner cavity of a condenser pipe, the cleaning rings are vertically arranged at equal intervals by utilizing the connecting rods, the annular bearing seats are provided with a plurality of cleaning rings and fixedly arranged on the central shaft at equal intervals, each flexible connecting rod comprises a first connecting head, a second connecting head, a first connecting rod, a second connecting rod, a spring, a first connecting plate and a second connecting plate, the first connecting head and the second connecting head are fixedly arranged on the outer side end of the first connecting rod and the inner side end of the second connecting rod respectively, the spring is fixedly sleeved on the first connecting rod and the second connecting rod, the outer side end of the first connecting head and the inner side end of the second connecting head are fixedly provided with the first connecting plate and the second connecting plate respectively, the first connecting plate and the second connecting plate are fixedly arranged on the side surface of the annular bearing seats and the connecting rods respectively, and the first connecting plate and the second connecting plate are fixedly arranged at an included angle of 45 degrees with the ground;
the pressure stabilizing tank comprises a tank body and a pressure control valve.
2. The low-temperature recovery device of organic solvent according to claim 1, wherein: the guide piece comprises a guide sleeve and a guide rod, the guide rod is arranged on the bracket, the guide sleeve is fixedly arranged in the inflow chamber, and the guide rod is slidably arranged in the guide sleeve.
CN202011391787.0A 2020-12-02 2020-12-02 Organic solvent low temperature recovery unit Active CN112587951B (en)

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CN112587951B true CN112587951B (en) 2022-10-21

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CN114739119B (en) * 2022-04-06 2023-04-25 安徽恒星世纪空调制冷设备有限公司 VOCs (volatile organic compounds) cryogenic condensation treatment device and treatment method thereof

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