CN212843083U - Sulfur dioxide cooler - Google Patents
Sulfur dioxide cooler Download PDFInfo
- Publication number
- CN212843083U CN212843083U CN202021797542.3U CN202021797542U CN212843083U CN 212843083 U CN212843083 U CN 212843083U CN 202021797542 U CN202021797542 U CN 202021797542U CN 212843083 U CN212843083 U CN 212843083U
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- CN
- China
- Prior art keywords
- heat exchange
- sulfur dioxide
- bevel gear
- teeth
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 54
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000004291 sulphur dioxide Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 210000004209 hair Anatomy 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000006188 syrup Substances 0.000 description 3
- 235000020357 syrup Nutrition 0.000 description 3
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 2
- 235000010261 calcium sulphite Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009923 sugaring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a sulfur dioxide cooler, including the cooling machine case, a plurality of heat exchange tube is evenly arranged and is vertical fixed state and installs in the case chamber of cooling machine case, link firmly together through the supporting platform frame between four direction sliding sleeve, a plurality of heat exchange tube one-to-one wears to establish in a plurality of runs through the jack, it installs the pipe wall setting that round brush hair and brush hair hug closely the heat exchange tube to be intensive state on the internal face of brush seat, the direction sliding sleeve that is in on the place ahead right side position still links firmly together with the internal thread sleeve, the internal thread sleeve is with screw-thread fit form adaptation suit on the power screw, left end wheel limit tooth of half left-hand bevel gear, right half left-hand bevel gear's left end wheel limit toothless jointly with full-tooth bevel gear phase-match transmission together. The utility model provides an easy pipe wall impurity adhesion problem that appears among the prior art, improved the heat exchange efficiency of heat exchange tube.
Description
Technical Field
The utility model relates to a relevant technical field of sulfur dioxide gas treatment facility specifically is a sulfur dioxide cooler.
Background
The sugarcane sugaring passes through the burning sulfur stove burning sulphur, generates sulfur dioxide, and the sulfur dioxide cooling back is used for adjusting juice and syrup pH value on the one hand, and on the other hand reacts with lime cream and generates calcium sulfite, utilizes calcium sulfite adsorptivity to remove chromogenic substance and non-sugar, improves juice and syrup purity, reduces juice and syrup color value. This process is known in the sugar industry as sulfitation. The sulfitation is a key process control point of the sugar making process, and the sulfitation effect directly influences the product quality and the sugar recovery. The sulfur burning furnace is divided into a low-temperature sulfur burning furnace and a high-temperature sulfur burning furnace, wherein the temperature of sulfur dioxide in the low-temperature sulfur burning furnace is about 380 ℃, and the temperature of sulfur dioxide in the high-temperature sulfur burning furnace is about 1000 ℃. Before use, sulfur dioxide must be cooled to about 70 ℃ to improve the solubility and reaction speed of sulfur dioxide, improve the utilization rate of sulfur dioxide and ensure the effect of the sugar making process, thereby ensuring the product quality and the recovery of sugar. The existing equipment for cooling sulfur dioxide mainly comprises a tube array vertical cooler and a tube array horizontal cooler.
Referring to fig. 1, fig. 1 shows a schematic diagram of a conventional sulfur dioxide cooler, which is a utility model patent publication No. CN205066506U and application No. cn201520790123.x disclosed in chinese patent network.
In this patent, the specific structure includes a cooling cabinet 1, the left side wall surface of the cabinet of the cooling cabinet 1 is communicated with a cooling water outlet 101, a sulfur dioxide inlet 102 and a lower cabinet bottom discharge port 103 from top to bottom, the middle position on the right side wall surface of the cabinet of the cooling cabinet 1 is communicated with a sulfur dioxide outlet 104, a plurality of heat exchange tubes 105 are uniformly arranged and installed in the cabinet cavity of the cooling cabinet 1 in a vertical fixed state, and other remaining structures are described in detail in this patent and are not repeated herein.
Although this kind of prior art's processing apparatus can cool off sulfur dioxide, there is a serious defect, that can produce the light a small amount of residue of quality in the course of the work, these a small amount of residue can directly be attached to the pipe wall surface of heat exchange tube 105, last for a long time, slowly pile up and lead to the pipe wall thickening easily, and then influence the heat exchange efficiency of heat exchange tube 105, sulfur dioxide's cooling effect has been reduced, there is very big limitation, it is particularly important that the device that can clear up a plurality of heat exchange tube 105's pipe wall is developed a section.
Therefore, the utility model provides a sulfur dioxide cooler that can clear up a plurality of heat exchange tube 105 surface in step to solve the problem that exists among the prior art, now describe the detailed structure after the improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sulfur dioxide cooler to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a sulfur dioxide cooler comprises a cooling cabinet, a plurality of heat exchange tubes are uniformly arranged and are vertically and fixedly arranged in a cabinet cavity of the cooling cabinet, the cabinet cavity of the cooling cabinet is fixedly provided with a guide sliding column in a vertical state at the positions of four corners at the front, the rear, the left and the right, the cylinder of each guide sliding column is sleeved with a guide sliding sleeve in a sliding fit manner, the four guide sliding sleeves are fixedly connected together through a supporting platform frame, a plurality of through jacks are uniformly distributed on a frame body of the supporting platform frame, a plurality of heat exchange tubes are correspondingly arranged in the through jacks one by one, a brush seat is fixed on the inner wall surface of a hole body of each through jack, the cross section of the brush seat is in a circular ring shape, a circle of brush bristles are densely arranged on the inner wall surface of the brush seat, the brush bristles are tightly attached to the tube wall of each heat exchange tube, the guide sliding sleeve at the position at the right side in front is also fixedly, the internal thread sleeve is installed on the power screw with screw-thread screw cooperation form adaptation suit, the power screw is vertical rotation state through sealed bearing frame and installs in the case chamber of cooling machine case, and the power screw makes progress the adaptation stretch out behind the cooling machine case and on its axis body with axle center fixed mounting have a left half cone gear, with axle center fixed mounting have a right half cone gear on the axis body of left half cone gear's top, the corresponding power screw, left end wheel limit tooth of left side half cone gear the left end wheel limit toothless of right half cone gear is in the same place with full tooth cone gear phase-match transmission cooperation jointly, and full tooth cone gear is operated by brushless servo motor drive.
Preferably: the cooling machine box comprises a box body, a cooling water inlet, a sulfur dioxide inlet, a lower box body bottom discharge port, a cooling water outlet, a sulfur dioxide outlet and a sulfur dioxide outlet.
Preferably: the aperture of the through jack is larger than the pipe diameter of the heat exchange pipe.
Preferably: half cone gear sets up to half left side round of side face has the structural style of tooth and half right side round of side face toothless tooth, half right cone gear sets up to half left side round of side face toothless tooth and half right side round of side face has the structural style of tooth, full tooth cone gear sets up to control the structural style that partial round of side face all has the tooth.
Preferably: the brushless servo motor is fixedly installed on the outer wall surface of the top of the cooling case through a motor support.
Has the advantages that:
through improving the utility model patent of a sulfur dioxide cooler (with the publication number of CN205066506U and the application number of CN201520790123.X) in the prior art, in the process of moving a brush holder downwards, a small amount of residues attached to the wall surface of a heat exchange tube are cleaned by using brush hairs, in the process of moving the brush holder upwards, a small amount of residues attached to the wall surface of the heat exchange tube are cleaned again by using the brush hairs, the cleaning is repeated in the way, the residues attached to the wall surface of the heat exchange tube are cleaned repeatedly upwards and downwards, the residues attached to the wall surface of the heat exchange tube are cleaned more thoroughly, the problem of pipe wall impurity attachment easily occurring in the prior art is solved, the heat exchange efficiency of the heat exchange tube is improved, the cooling effect of the sulfur dioxide is ensured, the limitation is removed, an auxiliary foundation is provided for the better cooling operation of the whole sulfur dioxide, the structural design is reasonable and ingenious, safety and reliability are achieved, has wide popularization and application value.
Drawings
Fig. 1 shows a schematic diagram of a sulphur dioxide cooler of the prior art, which is disclosed in the chinese patent network as a utility model patent with publication number CN205066506U and application number cn201520790123. x.
Fig. 2 shows a schematic view of a modified sulphur dioxide cooler.
Fig. 3 shows an enlarged schematic view of a sulphur dioxide cooler at a after modification.
Fig. 4 shows a schematic top view of a guide runner and an internally threaded sleeve in an improved sulfur dioxide cooler.
Fig. 5 shows an enlarged schematic view of a sulphur dioxide cooler at B after modification.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 shows a schematic diagram of a conventional sulfur dioxide cooler, which is a utility model patent publication No. CN205066506U and application No. cn201520790123.x disclosed in chinese patent network.
In this patent, the specific structure includes a cooling cabinet 1, the left side wall surface of the cabinet of the cooling cabinet 1 is communicated with a cooling water outlet 101, a sulfur dioxide inlet 102 and a lower cabinet bottom discharge port 103 from top to bottom, the middle position on the right side wall surface of the cabinet of the cooling cabinet 1 is communicated with a sulfur dioxide outlet 104, a plurality of heat exchange tubes 105 are uniformly arranged and installed in the cabinet cavity of the cooling cabinet 1 in a vertical fixed state, and other remaining structures are described in detail in this patent and are not repeated herein.
Although this kind of prior art's processing apparatus can cool off sulfur dioxide, there is a serious defect, that can produce the light a small amount of residue of quality in the course of the work, these a small amount of residue can directly be attached to the pipe wall surface of heat exchange tube 105, last for a long time, slowly pile up and lead to the pipe wall thickening easily, and then influence the heat exchange efficiency of heat exchange tube 105, sulfur dioxide's cooling effect has been reduced, there is very big limitation, it is particularly important that the device that can clear up a plurality of heat exchange tube 105's pipe wall is developed a section.
Therefore, the utility model provides a sulfur dioxide cooler that can clear up a plurality of heat exchange tube 105 surface in step to solve the problem that exists among the prior art, now describe the detailed structure after the improvement.
Referring to fig. 2-5, fig. 2 is a schematic diagram of an improved sulfur dioxide cooler.
The embodiment of the utility model provides an in, a sulfur dioxide cooler, its concrete structure is including cooling machine case 1 equally, from the top down intercommunication is from having cooling water export 101, sulfur dioxide entry 102, lower box bottom row mouth 103 on cooling machine case 1's the box left side wall, middle part position department intercommunication has sulfur dioxide export 104 certainly on cooling machine case 1's the box right side wall, and a plurality of heat exchange tube 105 evenly arranges and is vertical fixed state and installs in cooling machine case 1's case chamber, utilizes a plurality of heat exchange tube 105's heat transfer effect to carry out cooling treatment to leading-in sulfur dioxide.
The difference is that:
the four corners position all around of the case chamber of cooling machine case 1 respectively is vertical state fixed and is provided with a direction sliding post 7, all is equipped with a direction sliding cover 8 on the cylinder of every direction sliding post 7 by the sliding form cooperation cover, links firmly together through supporting platform frame 2 between the four direction sliding covers 8, equipartition is seted up a plurality of and is run through the jack 201 and a plurality of heat exchange tube 105 one-to-one corresponding wears to be established in a plurality of run through jack 201 on the support body of supporting platform frame 2, the aperture that runs through jack 201 is greater than the pipe diameter of heat exchange tube 105, be fixed with brush seat 3 and the cross-sectional shape of brush seat 3 on the hole internal face that runs through jack 201 is ring shape, be intensive on the internal face of brush seat 3 and install round brush hair 4 and brush hair 4 hug closely the pipe wall setting of heat exchange tube 105, direction sliding cover 8 on the position of the place, the internal thread sleeve 10 is fittingly sleeved on the power screw 9 in a threaded screw matching mode, the power screw 9 is vertically installed in a box cavity of the cooling machine box 1 in a rotating state through a sealing bearing seat 11, the power screw 9 is upwards fittingly extended out of the cooling machine box 1 and is coaxially and fixedly provided with a left half bevel gear 12 on a shaft body, a right half bevel gear 13 is coaxially and fixedly installed above the left half bevel gear 12 and corresponding to the shaft body of the power screw 9, the left half bevel gear 12 is set in a structural form that a left half wheel side surface is provided with teeth and a right half wheel side surface is provided with no teeth, the right half bevel gear 13 is set in a structural form that the left half wheel side surface is provided with no teeth and the right half wheel side surface is provided with teeth, left end wheel side teeth of the left half bevel gear 12 and left end wheel side no teeth of the right half bevel gear 13 are matched with a full-tooth bevel gear 14 in a transmission matching mode together, the full-tooth bevel gear 14 is set to be in a structural form that the left part and the right part of the gear side surfaces are provided with teeth, the full-tooth bevel gear 14 is driven by the brushless servo motor 5 to operate, and the brushless servo motor 5 is fixedly installed on the outer wall surface of the top of the cooling cabinet 1 through the motor support 6.
Through improving the utility model patent of a sulfur dioxide cooler (publication No. CN205066506U, application No. CN201520790123.X) of the prior art, a guide sliding column 7, a guide sliding sleeve 8, a supporting platform frame 2, a plurality of through jacks 201, a brush holder 3, brush bristles 4, an internal thread sleeve 10, a power screw 9, a left half bevel gear 12, a right half bevel gear 13, a full-tooth bevel gear 14 and a brushless servo motor 5 are additionally arranged on the basis of the structure, when the sulfur dioxide cooler works in practice, the heat exchange effect of a plurality of heat exchange tubes 105 is utilized to cool the introduced sulfur dioxide, different from the prior art, a small amount of residues with light weight can be generated in the working process, the small amount of residues can be directly attached to the tube wall surface of the heat exchange tubes 105, only the brushless servo motor 5 needs to be started to drive the full-tooth bevel gear 14 to rotate, when the sulfur dioxide cooler is in an initial state, the left end gear edge teeth of the left half conical gear 12 are in transmission fit with the full-tooth conical gear 14, the left end gear edge teeth of the right half conical gear 13 are not in transmission fit with the full-tooth conical gear 14, at this stage, the left half conical gear 12 is driven by the full-tooth conical gear 14 to rotate, the power screw 9 rotates forwards in the vertical direction, the internal thread sleeve 10 is sleeved on the power screw 9 in a threaded screw fit mode, the power screw 9 is installed in a box cavity of the cooling machine box 1 in a vertical rotating state through the sealing bearing seat 11, according to the threaded screw transmission principle, the internal thread sleeve 10 is driven to move downwards, and the guide sliding sleeve 8 on the front right side position is fixedly connected with the internal thread sleeve 10, so that the guide sliding sleeve 8 is driven to move downwards along with the internal thread sleeve 10 in a synchronous mode, in addition, the four guide sliding sleeves 8 are fixedly connected together through the supporting platform frame 2, so that the effect that the supporting platform frame 2 moves downwards integrally is achieved, a plurality of through jacks 201 are uniformly distributed on the frame body of the supporting platform frame 2, a plurality of heat exchange tubes 105 are correspondingly arranged in the through jacks 201 one by one, a circle of bristles 4 are arranged on the inner wall surface of the brush seat 3 in an intensive state, the bristles 4 are tightly attached to the tube wall of the heat exchange tubes 105, in the process that the brush seat 3 moves downwards, a small amount of residues attached to the tube wall surface of the heat exchange tubes 105 are cleaned by the bristles 4, the left half conical gear 12 and the right half conical gear 13 continue to rotate, the toothless part of the left half conical gear 12 is not in transmission fit with the full-tooth conical gear 14, the toothed part of the right half conical gear 13 is in transmission fit with the full-tooth conical gear 14, and the power screw 9 reversely rotates in the vertical direction at this stage, the internal thread sleeve 10 is then driven to move upwards to drive the guide sliding sleeve 8 to move upwards along with the internal thread sleeve 10 in a synchronous manner, so that the effect of integrally moving the supporting platform frame 2 upwards is achieved, in the process of moving the brush holder 3 upwards, the small amount of residue attached to the wall surface of the heat exchange tube 105 is cleaned again by the brush 4, so repeated going on, upwards make a round trip to clear up again downwards after upwards, the residue that attaches to on the pipe wall surface of heat exchange tube 105 can be more thoroughly cleared up, the pipe wall impurity that has appeared easily among the prior art adheres to the problem has been solved, heat exchange efficiency of heat exchange tube 105 has been improved, sulfur dioxide's cooling effect has been guaranteed, the limitation has been removed, cooling operation better for whole sulfur dioxide provides supplementary basis, structural design is reasonable ingenious, safety and reliability, wide popularization and application value has.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A sulfur dioxide cooler comprises a cooling cabinet (1), wherein a plurality of heat exchange tubes (105) are uniformly arranged and are vertically fixed and are arranged in a cabinet cavity of the cooling cabinet (1), and the sulfur dioxide cooler is characterized in that four corners of the cabinet cavity of the cooling cabinet (1) are respectively vertically fixed with a guide sliding column (7), a guide sliding sleeve (8) is sleeved on a column body of each guide sliding column (7) in a sliding manner in a matching manner, the four guide sliding sleeves (8) are fixedly connected together through a supporting platform frame (2), a plurality of through jacks (201) are uniformly distributed on a frame body of the supporting platform frame (2), the plurality of heat exchange tubes (105) are correspondingly arranged in the plurality of through jacks (201), a brush seat (3) is fixed on the inner wall surface of a hole body of each through jack (201), and the cross section of each brush seat (3) is circular, the brush is characterized in that the inner wall surface of the brush seat (3) is densely provided with a circle of brush bristles (4) and the brush bristles (4) are tightly attached to the wall of the heat exchange tube (105), the guide sliding sleeve (8) positioned on the right side of the front is fixedly connected with the internal thread sleeve (10), the internal thread sleeve (10) is sleeved on the power screw (9) in a thread screw matching mode, the power screw (9) is vertically rotated through the sealing bearing seat (11) and is arranged in the box cavity of the cooling machine box (1), the power screw (9) is upwards matched and extends out of the cooling machine box (1) and is fixedly provided with a left half-cone gear (12) with the axle center on the axle body, a right half-cone gear (13) is fixedly arranged on the axle body corresponding to the power screw (9) and above the left half-cone gear (12), and the left end wheel side teeth of the left half-cone gear (12), The left end wheel edge of the right half bevel gear (13) is matched with the full-tooth bevel gear (14) in a transmission and matching mode without teeth, and the full-tooth bevel gear (14) is driven by the brushless servo motor (5) to operate.
2. A sulfur dioxide cooler according to claim 1, characterized in that the left wall of the cooling cabinet (1) is connected with a cooling water outlet (101), a sulfur dioxide inlet (102) and a bottom discharge outlet (103) from top to bottom, and the right wall of the cooling cabinet (1) is connected with a sulfur dioxide outlet (104) at the middle position.
3. A sulphur dioxide cooler according to claim 1, wherein the aperture of the through-going socket (201) is larger than the tube diameter of the heat exchange tube (105).
4. A sulphur dioxide cooler according to claim 1, wherein the left half bevel gear (12) is arranged in a configuration with teeth on the left half face and no teeth on the right half face, the right half bevel gear (13) is arranged in a configuration with teeth on the left half face and no teeth on the right half face, and the full-tooth bevel gear (14) is arranged in a configuration with teeth on both the left and right half faces.
5. A sulphur dioxide cooler according to claim 1, wherein the brushless servo motor (5) is fixedly mounted on the top external wall of the cooling cabinet (1) by means of a motor bracket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021797542.3U CN212843083U (en) | 2020-08-25 | 2020-08-25 | Sulfur dioxide cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021797542.3U CN212843083U (en) | 2020-08-25 | 2020-08-25 | Sulfur dioxide cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212843083U true CN212843083U (en) | 2021-03-30 |
Family
ID=75140954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021797542.3U Expired - Fee Related CN212843083U (en) | 2020-08-25 | 2020-08-25 | Sulfur dioxide cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212843083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114392707A (en) * | 2022-02-25 | 2022-04-26 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN116379455A (en) * | 2023-04-19 | 2023-07-04 | 无锡翔龙环球科技股份有限公司 | Energy-saving and environment-friendly waste heat recycling device |
-
2020
- 2020-08-25 CN CN202021797542.3U patent/CN212843083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114392707A (en) * | 2022-02-25 | 2022-04-26 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN114392707B (en) * | 2022-02-25 | 2023-09-22 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN116379455A (en) * | 2023-04-19 | 2023-07-04 | 无锡翔龙环球科技股份有限公司 | Energy-saving and environment-friendly waste heat recycling device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |