Esterification condensing device

Abstract

The invention relates to the technical field of esterification gas condensation, in particular to an esterification condensation device which comprises a box body, a water inlet pipe, a water outlet pipe and a gas inlet pipe are arranged on the box body, a plurality of first heat exchange panels and second heat exchange panels are alternately arranged in the box body, and the second heat exchange panels are in sliding sealing fit with the inner wall of the box body. On the basis of heat exchange and condensation of gas, the condensation point of the gas is increased in a pressurization mode, and then the condensation efficiency is improved; according to the closed supercharged condenser, gas is condensed in a closed supercharged mode, compared with a traditional tubular condenser, the closed supercharged condenser is not affected by gas inlet flow, the extraction rate of ester substances is higher, and resource waste caused by the too low extraction rate of the ester substances is avoided; in the gas pressurization condensation working process, the air pressure in the condensation chamber is always a constant value, the stability of the gas condensation rate is high, and the situation that the cylinder body, the second heat exchange panel and other components are damaged due to excessive pressurization is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of esterification gas condensation, and in particular to an esterification condensation device. Background Art

[0002] Esterification reactions usually occur between alcohols and carboxylic acids, generating esters and water through the action of catalysts. Esterification reactions produce gases, which need to be cooled and liquefied through a condenser. The condenser is usually designed with channels for cooling media (such as water or cooling oil) to cool the gases produced by the reaction into liquids through the principle of heat exchange.

[0003] The condensed liquid product is collected for further separation and purification. The esterification condenser is usually connected to a collection device to ensure that the condensed liquid can enter the collection device smoothly.

[0004] Traditional esterification condensers are mostly shell-and-tube condensers, but this type of condenser is easily affected by the intake air flow rate. If the intake air flow rate is too large, the gas flow rate in the heat exchange pipe will be too large, causing the gas to stay in the heat exchange pipe for too short a time, which in turn causes poor gas condensation effect, thereby affecting the extraction rate of ester substances. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an esterification condensation device to solve the above problems.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] An esterification condensation device comprises a box body, on which a water inlet pipe, a water outlet pipe and an air inlet pipe are arranged, a plurality of first heat exchange panels and a second heat exchange panel are alternately arranged in the box body, the second heat exchange panel is slidably sealed with the inner wall of the box body, the first heat exchange panel and the second heat exchange panel divide the space inside the box body into an installation chamber, a return chamber, a plurality of cold liquid chambers and a plurality of condensation chambers, the cold liquid chambers and the condensation chambers are alternately arranged and located between the installation chamber and the return chamber, and the installation chamber is arranged close to the air inlet pipe;

[0008] The bottom of the box body is provided with a header, and the bottom wall of the box body is provided with a plurality of discharge slots, and the condensing chamber is connected with the inside of the header through the discharge slots; a closing mechanism is installed on the discharge slot, and the closing mechanism cooperates with the driving of the second heat exchange panel; a connecting rod is also included, and a plurality of closing mechanisms are linked by the connecting rod, and a driving tooth is provided at one end of the connecting rod; a discharge valve mechanism is provided on the header, and when the driving part of the discharge valve mechanism corresponds to the driving tooth, the discharge valve mechanism is linked with the driving tooth;

[0009] A cylinder body is installed on the box body, and a sleeve rod is fixedly connected to the free end of the cylinder body, a push rod is inserted into the sleeve rod, and one end of the push rod inserted into the sleeve rod is fixedly connected to a sliding plate, and the edge of the sliding plate slides with the inner wall of the sleeve rod, and the other end of the push rod is fixedly connected to the second heat exchange panel closest to the installation room, and a top plate is fixedly connected to the push rod, and a first spring is installed between the sleeve rod and the top plate, and a first electrode block and a second electrode block are respectively provided on the side where the sleeve rod and the top plate are close to each other, and the second electrode block is electrically connected to the cylinder body.

[0010] Preferably, it also includes a distribution pipe, multiple second heat exchange panels are fixedly connected with the distribution pipe, the first heat exchange panel is provided with a sealing ring, and the distribution pipe and the sealing ring are slidably sealed, the distribution pipe in the condensation chamber is provided with a distribution hole, and a first telescopic pipe is provided between the distribution pipe and the air inlet pipe.

[0011] Preferably, two connecting grooves are provided on the first heat exchange panel and the second heat exchange panel, the water inlet pipe and the water outlet pipe are matched with the two connecting grooves respectively, a second telescopic pipe matching the connecting groove is provided in the condensing chamber, and the output end of the water inlet pipe and the input end of the water outlet pipe are both connected with the fluid of the cold liquid chamber closest to the installation chamber.

[0012] Preferably, the closing mechanism includes a slide groove opened on the inner wall of the discharge chute, a closing plate slidingly fitted in the slide groove, the top of the closing plate extending out of the slide groove is fixedly connected with a stop block, the stop block is located on the side of the second heat exchange panel away from the installation chamber, a second spring is installed between one end of the closing plate inserted into the slide groove and the inner wall of the slide groove, a through hole for the connecting rod to pass through is opened on the bottom wall of the box body, and multiple closing plates are fixedly connected to the connecting rod.

[0013] Preferably, the discharge valve mechanism comprises a valve body and a valve flap, the valve flap is arranged in the valve body and the outer edge of the valve flap is sealed and fitted with the inner wall of the valve body, the valve flap is provided with a valve shaft, the inner bottom wall of the installation chamber is provided with an installation groove, the top end of the valve shaft penetrates the valve body and is inserted into the interior of the installation groove, the top end of the valve shaft is coaxially fixedly connected with a gear, and the gear is meshed and connected with the driving tooth;

[0014] A positioning plate is fixedly connected to the valve shaft, and a torsion spring is sleeved on the valve shaft between the bottom of the positioning plate and the outer surface of the valve body.

[0015] Preferably, it further comprises a lifting rod, a guide groove is provided on the inner bottom wall of the installation groove, the lifting rod is slidably matched with the guide groove, the lifting rod is located on the side of the top plate close to the cylinder body, and a slope is provided on the top end of the lifting rod close to the top plate;

[0016] A fixing cap is arranged at the bottom end of the lifting rod, a third spring is installed between the bottom of the box body and the fixing cap, and a one-way limiting tooth is arranged on the lifting rod, and the one-way limiting tooth is engaged with the gear.

[0017] Preferably, a sensor matching the top plate is provided in the box body, and the sensor is electrically connected to the cylinder body.

[0018] Preferably, it also includes a reversing valve, which has two output ends, one of which is fluidly connected to the input end of the water inlet pipe, and the other is fluidly connected to the air inlet pipe through a connecting pipe; a one-way valve is provided in the air inlet pipe.

[0019] Preferably, the first heat exchange panel and the second heat exchange panel are provided with a plurality of heat exchange fins.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention, on the basis of gas heat exchange condensation, raises the condensation point of the gas by means of pressurization, thereby improving the condensation efficiency; the present invention adopts a closed pressurized method for gas condensation, which is not affected by the intake air flow rate compared with the traditional shell-and-tube condenser, and has a higher extraction rate for ester substances, thus avoiding the waste of resources caused by too low extraction rate of ester substances; during the working process of gas pressurized condensation of the present invention, the gas pressure in the condensation chamber is always constant, so that the gas condensation rate is more stable, and excessive pressurization is prevented from causing damage to components such as the cylinder body and the second heat exchange panel.

[0022] 2. The present invention integrates gas heat exchange condensation, pressurized condensation, liquid collection and liquid discharge into one, has a high degree of automation and high practicality; after the condensation work of the present invention is completed, the reversing valve is converted to supply water to the intake pipe, and the water flows into the interior of the condensation chamber, and then the cylinder body is quickly contracted and expanded to quickly change the space in the condensation chamber, and the water in the condensation chamber flushes the first heat exchange panel, the second heat exchange panel and the heat exchange plate, thereby preventing corrosion caused by residual esters on the first heat exchange panel, the second heat exchange panel and the heat exchange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 The cross-sectional structure of the present invention is shown in FIG. Figure 1 .

[0025] Figure 3 The cross-sectional structure of the present invention is schematically shown Figure 2 .

[0026] Figure 4 It is a structural schematic diagram of the connection between the closing mechanism and the discharge valve mechanism of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the closing mechanism of the present invention.

[0028] Figure 6 For the present invention Figure 4 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0029] Figure 7 It is a schematic structural diagram of the valve flap of the present invention.

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the sleeve rod of the present invention.

[0031] In the attached drawings: 1, box body; 2, water inlet pipe; 3, water outlet pipe; 4, air inlet pipe; 5, first heat exchange panel; 6, installation chamber; 7, reflux chamber; 8, cold liquid chamber; 9, condensation chamber; 10, second heat exchange panel; 11, distribution pipe; 12, distribution hole; 13, first telescopic pipe; 14, header; 15, discharge trough; 16, second telescopic pipe; 17, cylinder body; 18, sleeve rod; 19, ejector rod; 20, reversing valve; 21, sliding plate; 22, top plate; 23, first A spring; 24, a first electrode block; 25, a connecting rod; 26, a slide groove; 27, a closing plate; 28, a stop block; 29, a second spring; 30, a valve body; 31, a valve flap; 32, a valve shaft; 33, a second electrode block; 34, a mounting groove; 35, a gear; 36, a positioning plate; 37, a torsion spring; 38, a lifting rod; 39, an inclined plane; 40, a third spring; 41, a sensor; 42, a one-way valve; 43, a heat exchange plate; 44, a one-way limit tooth; 45, a driving tooth. DETAILED DESCRIPTION

[0032] The following will refer to Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0033] An esterification condensation device, such as Figure 1-Figure 3As shown, it includes a box body 1, on which a water inlet pipe 2, a water outlet pipe 3 and an air inlet pipe 4 are arranged, and a plurality of first heat exchange panels 5 and second heat exchange panels 10 are alternately arranged in the box body 1, and the second heat exchange panel 10 is slidably sealed with the inner wall of the box body 1, and a sealing ring is arranged on the outer edge of the second heat exchange panel 10, and the sealing ring is in contact with the inner wall of the box body 1; the first heat exchange panel 5 and the second heat exchange panel 10 divide the space inside the box body 1 into an installation chamber 6, a return chamber 7, a plurality of cold liquid chambers 8 and a plurality of condensation chambers 9, and the cold liquid chambers 8 and the condensation chambers 9 are alternately arranged and located between the installation chamber 6 and the return chamber 7. The installation chamber 6 is arranged between the flow chambers 7 and the air inlet pipe 4; when the water body (it can also be a coolant, and the water body is taken as an example in this embodiment) passes through the cold liquid chamber 8, it can heat and cool the first heat exchange panel 5 and the second heat exchange panel 10, and the gas in the condensation chamber 9 transfers heat to the first heat exchange panel 5 and the second heat exchange panel 10, thereby achieving the effect of cooling the gas in the condensation chamber 9; through the slidable arrangement of the second heat exchange panel 10, when the second heat exchange panel 10 slides to reduce the space inside the condensation chamber 9, the air pressure inside the condensation chamber 9 increases to increase the condensation point of the gas, thereby improving the condensation efficiency.

[0034] A plurality of heat exchange fins 43 are disposed on the first heat exchange panel 5 and the second heat exchange panel 10. The heat exchange fins 43 can increase the heat exchange area and further improve the gas condensation efficiency.

[0035] like Figure 1 and Figure 3 As shown, it also includes a distribution pipe 11, and multiple second heat exchange panels 10 are fixedly connected with the distribution pipe 11, so that the multiple second heat exchange panels 10 move synchronously. A sealing ring is provided on the first heat exchange panel 5, and the distribution pipe 11 and the sealing ring are slidably sealed. A distribution hole 12 is provided on the distribution pipe 11 in the condensation chamber 9, and a first telescopic pipe 13 is provided between the distribution pipe 11 and the air inlet pipe 4, and a one-way valve 42 is provided in the air inlet pipe 4; the air inlet pipe 4 is connected to an external gas source (such as an esterification reactor). When the second heat exchange panel 10 slides to increase the space inside the condensation chamber 9, the air pressure inside the condensation chamber 9 is reduced, and the one-way valve 42 automatically opens. The gas passes through the air inlet pipe 4, the first telescopic pipe 13, and the distribution pipe 11 in turn, and finally flows into the interior of the condensation chamber 9 through the distribution hole 12, and then the second heat exchange panel 10 slides in the opposite direction to reduce the space inside the condensation chamber 9, thereby increasing the air pressure inside the condensation chamber 9, thereby realizing the air intake and pressurization of the condensation chamber 9.

[0036] like Figure 2As shown, two connecting grooves are provided on the first heat exchange panel 5 and the second heat exchange panel 10, and the water inlet pipe 2 and the water outlet pipe 3 are matched with the two connecting grooves respectively. A second telescopic pipe 16 matching the connecting groove is provided in the condensation chamber 9. Through the setting of the second telescopic pipe 16, water can flow into each cold liquid chamber 8; the output end of the water inlet pipe 2 and the input end of the water outlet pipe 3 are both fluidly connected with the cold liquid chamber 8 closest to the installation chamber 6. When water is injected into the water inlet pipe 2, the water flows into the reflux chamber 7 and multiple cold liquid chambers 8 and is finally discharged from the water outlet pipe 3 (the device in this embodiment is always in a full water operation state during the condensation operation process), thereby exchanging heat and cooling the first heat exchange panel 5 and the second heat exchange panel 10.

[0037] like Figure 3 , Figure 4 and Figure 8 As shown, a cylinder 17 is installed on the box 1, and a control system is provided on the cylinder 17, which can be controlled by a PLC signal transmission mode, and can control the extension and extension speed of the cylinder 17. This is the prior art and will not be described in detail; the free end of the cylinder 17 is fixedly connected to a sleeve rod 18, and a push rod 19 is inserted into the sleeve rod 18. One end of the push rod 19 inserted into the sleeve rod 18 is fixedly connected to a sliding plate 21, and the edge of the sliding plate 21 is slidably matched with the inner wall of the sleeve rod 18. The other end of the push rod 19 is fixedly connected to the second heat exchange panel 10 closest to the installation chamber 6, and the push rod 1 9 is fixedly connected with a top plate 22, a first spring 23 is installed between the sleeve rod 18 and the top plate 22, a first electrode block 24 and a second electrode block 33 are respectively arranged on the side where the sleeve rod 18 and the top plate 22 are close to each other, and the second electrode block 33 is electrically connected to the cylinder body 17; when the cylinder body 17 extends to push the sleeve rod 18, the first spring 23 pushes against the top plate 22 to move with the push rod 19, and the push rod 19 pushes against the second heat exchange panel 10 closest to the installation chamber 6 to slide, and through the setting of the distribution pipe 11, multiple second heat exchange panels 10 slide synchronously, and the air pressure inside multiple condensation chambers 9 increases.

[0038] like Figure 3-Figure 5As shown, a header 14 is provided at the bottom of the box body 1, and a plurality of discharge slots 15 are provided on the bottom wall of the box body 1. The condensation chamber 9 is connected with the interior of the header 14 through the discharge slot 15. The gas in the condensation chamber 9 condenses and liquefies and flows into the interior of the header 14 through the discharge slot 15; a closing mechanism is installed on the discharge slot 15, and the closing mechanism is driven and matched with the second heat exchange panel 10; it also includes a connecting rod 25, and multiple closing mechanisms are linked by the connecting rod 25, and one end of the connecting rod 25 is provided with a driving tooth 45; the closing mechanism includes a slide groove 26 opened on the inner wall of the discharge groove 15, and a closing plate 27 is slidably matched in the slide groove 26, and the top of the closing plate 27 extending out of the slide groove 26 is fixedly connected with a stop block 28, the stop block 28 is located on the side of the second heat exchange panel 10 away from the installation chamber 6. When the second heat exchange panel 10 moves away from the installation chamber 6, the stop block 28 is pressed against and the closing plate 27 is pulled out of the slide groove 26; a second spring 29 is installed between one end of the closing plate 27 inserted into the slide groove 26 and the inner wall of the slide groove 26, and a through hole for the connecting rod 25 to penetrate is opened on the bottom wall of the box body 1. Multiple closing plates 27 are fixedly connected to the connecting rod 25. When one of the closing plates 27 moves, the connecting rod 25 pulls the remaining closing plates 27 to move, thereby realizing the synchronous movement of multiple closing plates 27; the closing plate 27 can slide in the slide groove 26, so that the discharge chute 15 can be opened and closed.

[0039] like Figure 4 , Figure 6-Figure 8 As shown, a discharge valve mechanism is provided on the collection box 14. When the driving part of the discharge valve mechanism corresponds to the driving tooth 45, the discharge valve mechanism and the driving tooth 45 are linked. The discharge valve mechanism includes a valve body 30 and a valve flap 31. The valve body 30 is connected to an external collection device. The valve flap 31 is arranged in the valve body 30 and the outer edge of the valve flap 31 is sealed and fitted with the inner wall of the valve body 30. A valve shaft 32 is provided on the valve flap 31. A mounting groove 34 is provided on the inner bottom wall of the mounting chamber 6. The top end of the valve shaft 32 passes through the valve body 30 and is inserted into the interior of the mounting groove 34. The top end of the valve shaft 32 is coaxially fixedly connected with a gear 35, and the gear 35 is meshed with the driving tooth 45.

[0040] When the discharge chute 15 is in the open state, the gear 35 is not meshed with the driving tooth 45. During the withdrawal of the closing plate 27, when the closing plate 27 moves close to the closed discharge chute 15, the gear 35 is meshed with the driving tooth 45. The closing plate 27 continues to be withdrawn to cause the gear 35 to rotate forward, driving the valve shaft 32 to rotate 90 degrees forward with the valve disc 31, that is, the valve body 30 is opened, and the ester liquid in the collection box 14 flows into the external collection device through the valve body 30.

[0041] A positioning plate 36 is fixedly connected to the valve shaft 32 , and a torsion spring 37 is sleeved on the valve shaft 32 between the bottom of the positioning plate 36 and the outer surface of the valve body 30 . The valve shaft 32 rotates with the valve flap 31 to open the valve body 30 , while the torsion spring 37 stores force.

[0042] It also includes a lifting rod 38, a guide groove is opened on the inner bottom wall of the installation groove 34, the lifting rod 38 slides in cooperation with the guide groove, the lifting rod 38 is located on the side of the top plate 22 close to the cylinder body 17, and a slope 39 is provided on the top of the lifting rod 38 close to the top plate 22; a fixing cap is provided at the bottom of the lifting rod 38, and a third spring 40 is installed between the bottom of the box body 1 and the fixing cap. When the top plate 22 moves close to the cylinder body 17, when the top plate 22 hits the slope 39 on the lifting rod 38, the lifting rod 38 descends, and at the same time the third spring 40 is stretched and stored. When the top plate 22 is reset and no longer hits the slope 39 on the lifting rod 38, the third spring 40 pulls the fixing cap to lift the lifting rod 38 up and reset.

[0043] A one-way limiting tooth 44 is provided on the lifting rod 38. The one-way limiting tooth 44 is a cone with one side being an inclined surface. When the one-way limiting tooth 44 is engaged with the gear 35, the gear 35 can only rotate in the forward direction.

[0044] like Figure 4 and Figure 8 As shown, a sensor 41 matching the top plate 22 is provided inside the box body 1. The sensor 41 is electrically connected to the cylinder body 17. The sensor 41 is a light sensor. When the closing plate 27 moves to close the discharge chute 15, the top plate 22 moves to correspond to the detection part of the sensor 41, and the cylinder body 17 is controlled to switch from extension work to contraction work.

[0045] like Figure 1 and Figure 2 As shown, it also includes a reversing valve 20, which is provided with two output ends, one of which is fluidly connected to the input end of the water inlet pipe 2, and the other output end is fluidly connected to the air inlet pipe 4 through a connecting pipe; during the condensation process, the reversing valve 20 inputs water into the water inlet pipe 2, and when the condensation work is completed, the reversing valve 20 is converted to input water into the air inlet pipe 4, and then the water flows into the condensation chamber 9 and cleans the inside thereof.

[0046] Working principle of the device:

[0047] When the free end of the cylinder 17 is extended, it pushes the sleeve rod 18, so that the first spring 23 pushes against the top plate 22 to move with the push rod 19, and the push rod 19 pushes against the second heat exchange panel 10 closest to the installation chamber 6 to slide, and then by utilizing the setting of the distribution pipe 11, multiple second heat exchange panels 10 slide synchronously, so that the air pressure inside the multiple condensation chambers 9 increases, thereby raising the gas condensation point, and then with the continuous flow of water from the cold liquid chamber 8, the internal temperature of the condensation chamber 9 is reduced by heat exchange, thereby achieving rapid condensation of the gas in the condensation chamber 9.

[0048] In the initial state, the discharge trough 15 is in an open state, and the ester liquid generated by condensation flows into the interior of the header 14 through the discharge trough 15, so that the ester liquid is collected.

[0049] It should be noted that, during the increase of the air pressure in the condensation chamber 9, the compression of the first spring 23 gradually increases, and the sleeve rod 18 gradually approaches the top plate 22. When the compression of the first spring 23 increases to the set value, that is, the air pressure in the condensation chamber 9 increases to the set value, the first electrode block 24 contacts the second electrode block 33 and transmits an electrical signal to the control system of the cylinder 17 to control the cylinder 17 to stop the expansion work, that is, the second heat exchange panel 10 stops sliding; it is worth noting that as the gas inside the condensation chamber 9 condenses, the air pressure inside the condensation chamber 9 decreases, the first spring 23 expands slightly and causes the top plate 22 to move again, the first electrode block 24 no longer contacts the second electrode block 33, and the cylinder 17 expands again, causing the second heat exchange panel 10 to move again until the air pressure in the condensation chamber 9 increases to the set value again; during the pressurized condensation process, the air pressure in the condensation chamber 9 is always a constant value, so that the gas condensation rate is more stable, and excessive pressurization is prevented from causing damage to components such as the cylinder 17 and the second heat exchange panel 10.

[0050] It should be noted that when the cylinder 17 is expanded to move the second heat exchange panel 10, it abuts against the block 28 and causes the closing plate 27 to be pulled out of the slide groove 26 (at the same time, the second spring 29 is stretched to store force). When the closing plate 27 moves close to the closed discharge trough 15, the gear 35 engages with the driving tooth 45, and the closing plate 27 continues to be pulled out to cause the gear 35 to rotate in the forward direction (at this time, the one-way limit tooth 44 will not limit the rotation of the gear 35) and drives the valve shaft 32 to rotate forward with the valve disc 31 (at the same time, the torsion spring 37 stores force). That is, when the closing plate 27 completely closes the discharge trough 15, the valve body 30 is fully opened, and the ester liquid in the collection box 14 flows into the external collection device through the valve body 30.

[0051] It is worth noting that when the closing plate 27 moves to close the discharge chute 15, the top plate 22 moves to correspond to the detection part of the sensor 41, and the sensor 41 transmits a signal to the control system of the cylinder body 17, so that the cylinder body 17 changes from extension operation to contraction operation.

[0052] During the contraction of the free end of the cylinder body 17, the gear 35 cannot rotate in the opposite direction due to the limiting effect of the one-way limit tooth 44, that is, the position of the closing plate 27 is constrained. During the contraction of the cylinder body 17, the discharge chute 15 is in a closed state and the valve body 30 is in an open state, ensuring that the ester liquid in the collection box 14 has sufficient time to flow out (because some ester liquids have a certain viscosity, that is, the fluidity is not high).

[0053] During the contraction of the cylinder body 17, the sleeve rod 18 is pulled to move in the opposite direction, and the sleeve rod 18 pulls the sliding plate 21 to move synchronously. When the top rod 19 moves in the opposite direction, it pulls the second heat exchange panel 10 to slide in the opposite direction and resets, so that when the internal space of the condensation chamber 9 increases, the air pressure inside the condensation chamber 9 decreases, and the one-way valve 42 opens automatically. The gas passes through the air intake pipe 4, the first telescopic pipe 13, and the distribution pipe 11, and finally flows into the interior of the condensation chamber 9 through the distribution hole 12, thereby realizing automatic air intake of the device; through continuous air intake and pressurization, the function of continuous pressurized condensation of the device is realized.

[0054] When the cylinder body 17 contracts until the top plate 22 butts against the inclined surface 39 on the lifting rod 38, the lifting rod 38 descends with the one-way limit tooth 44, and the one-way limit tooth 44 no longer restrains the gear 35. The torsion spring 37 releases the force to cause the valve shaft 32 to rotate in the opposite direction with the valve disc 31, so that the valve body 30 is automatically closed. At the same time, the connecting rod 25 is no longer restrained. The second spring 29 releases the force and pulls the closing plate 27 back into the slide groove 26, thereby realizing the automatic opening of the discharge chute 15.

[0055] After the condensation work of the device is completed, ester liquid (some ester liquids are corrosive) remains on the first heat exchange panel 5, the second heat exchange panel 10 and the heat exchange plate 43, which need to be cleaned in time, and the reversing valve 20 is converted to input water into the air inlet pipe 4, and then the water flows into the interior of the condensation chamber 9, and then the cylinder body 17 is controlled to quickly expand and contract, that is, the second heat exchange panel 10 quickly slides back and forth to make the space in the condensation chamber 9 change rapidly, and the water in the condensation chamber 9 flushes the first heat exchange panel 5, the second heat exchange panel 10 and the heat exchange plate 43, so that the device has a better cleaning effect.

[0056] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An esterification condensation device, comprising a housing (1), wherein the housing (1) is provided with a water inlet pipe (2), a water outlet pipe (3) and an air inlet pipe (4), characterized in that: A plurality of first heat exchange panels (5) and second heat exchange panels (10) are alternately arranged in the box body (1); the second heat exchange panel (10) is in sliding and sealing cooperation with the inner wall of the box body (1); the first heat exchange panel (5) and the second heat exchange panel (10) divide the space inside the box body (1) into an installation chamber (6), a return chamber (7), a plurality of cold liquid chambers (8) and a plurality of condensation chambers (9); the cold liquid chambers (8) and the condensation chambers (9) are alternately arranged and located between the installation chamber (6) and the return chamber (7); the installation chamber (6) is arranged close to the air inlet pipe (4); The bottom of the box body (1) is provided with a header (14), and the bottom wall of the box body (1) is provided with a plurality of discharge slots (15), and the condensing chamber (9) is connected with the inside of the header (14) through the discharge slots (15); a closing mechanism is installed on the discharge slot (15), and the closing mechanism is driven and cooperated with the second heat exchange panel (10); it also includes a connecting rod (25), and a plurality of closing mechanisms are linked through the connecting rod (25), and one end of the connecting rod (25) is provided with a driving tooth (45); the header (14) is provided with a discharge valve mechanism, and when the driving part of the discharge valve mechanism corresponds to the driving tooth (45), the discharge valve mechanism is linked with the driving tooth (45); A cylinder body (17) is installed on the box body (1), a sleeve rod (18) is fixedly connected to the free end of the cylinder body (17), a push rod (19) is inserted into the sleeve rod (18), one end of the push rod (19) inserted into the sleeve rod (18) is fixedly connected to a sliding plate (21), the edge of the sliding plate (21) is slidably matched with the inner wall of the sleeve rod (18), the other end of the push rod (19) is fixedly connected to a second heat exchange panel (10) closest to the installation chamber (6), a top plate (22) is fixedly connected to the push rod (19), a first spring (23) is installed between the sleeve rod (18) and the top plate (22), a first electrode block (24) and a second electrode block (33) are respectively arranged on the side where the sleeve rod (18) and the top plate (22) are close to each other, and the second electrode block (33) is electrically connected to the cylinder body (17).

2. An esterification condensation device according to claim 1, characterized in that: It also includes a distribution pipe (11), a plurality of the second heat exchange panels (10) are fixedly connected to the distribution pipe (11), a sealing ring is provided on the first heat exchange panel (5), and the distribution pipe (11) and the sealing ring are slidably sealed, a distribution hole (12) is provided on the distribution pipe (11) in the condensation chamber (9), and a first telescopic pipe (13) is provided between the distribution pipe (11) and the air inlet pipe (4).

3. The esterification condensation device according to claim 1, characterized in that: The first heat exchange panel (5) and the second heat exchange panel (10) are both provided with two connecting grooves, the water inlet pipe (2) and the water outlet pipe (3) are respectively matched with the two connecting grooves, a second telescopic pipe (16) matching with the connecting grooves is provided in the condensation chamber (9), and the output end of the water inlet pipe (2) and the input end of the water outlet pipe (3) are both fluidly connected with the cold liquid chamber (8) closest to the installation chamber (6).

4. The esterification condensation device according to claim 1, characterized in that: The closing mechanism comprises a slide groove (26) provided on the inner wall of the discharge trough (15), a closing plate (27) slidingly fitted in the slide groove (26), a top of the closing plate (27) extending out of one end of the slide groove (26) being fixedly connected with a stop block (28), the stop block (28) being located on the side of the second heat exchange panel (10) away from the installation chamber (6), a second spring (29) being installed between one end of the closing plate (27) inserted into the slide groove (26) and the inner wall of the slide groove (26), a through hole for the connecting rod (25) to penetrate is provided on the bottom wall of the box body (1), and a plurality of the closing plates (27) are fixedly connected to the connecting rod (25).

5. The esterification condensation device according to claim 1, characterized in that: The discharge valve mechanism comprises a valve body (30) and a valve flap (31), wherein the valve flap (31) is arranged in the valve body (30) and the outer edge of the valve flap (31) is sealed and fitted with the inner wall of the valve body (30), a valve shaft (32) is arranged on the valve flap (31), an installation groove (34) is arranged on the inner bottom wall of the installation chamber (6), the top end of the valve shaft (32) passes through the valve body (30) and is inserted into the inside of the installation groove (34), the top end of the valve shaft (32) is coaxially fixedly connected with a gear (35), and the gear (35) is meshingly connected with a driving tooth (45); A positioning plate (36) is fixedly connected to the valve shaft (32), and a torsion spring (37) is sleeved on the valve shaft (32) between the bottom of the positioning plate (36) and the outer surface of the valve body (30).

6. An esterification condensation device according to claim 5, characterized in that: It also includes a lifting rod (38), a guide groove is provided on the inner bottom wall of the installation groove (34), the lifting rod (38) is slidably matched with the guide groove, the lifting rod (38) is located on a side of the top plate (22) close to the cylinder body (17), and a slope (39) is provided on the top end of the lifting rod (38) close to the top plate (22); A fixing cap is provided at the bottom end of the lifting rod (38), a third spring (40) is installed between the bottom of the box body (1) and the fixing cap, and a one-way limiting tooth (44) is provided on the lifting rod (38), and the one-way limiting tooth (44) is engaged with the gear (35).

7. The esterification condensation device according to claim 1, characterized in that: A sensor (41) matching the top plate (22) is provided inside the box (1), and the sensor (41) is electrically connected to the cylinder (17).

8. The esterification condensation device according to claim 1, characterized in that: It also comprises a reversing valve (20), the reversing valve (20) being provided with two output ends, one of which is in fluid communication with the input end of the water inlet pipe (2), and the other of which is in fluid communication with the air inlet pipe (4) via a connecting pipe; a one-way valve (42) is provided in the air inlet pipe (4).

9. The esterification condensation device according to claim 1, characterized in that: A plurality of heat exchange fins (43) are provided on the first heat exchange panel (5) and the second heat exchange panel (10).

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