CN213273878U - Graphite heat exchanger device of dirt inhibition and scale inhibition - Google Patents
Graphite heat exchanger device of dirt inhibition and scale inhibition Download PDFInfo
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- CN213273878U CN213273878U CN202022239416.2U CN202022239416U CN213273878U CN 213273878 U CN213273878 U CN 213273878U CN 202022239416 U CN202022239416 U CN 202022239416U CN 213273878 U CN213273878 U CN 213273878U
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- Y—GENERAL 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
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Abstract
The utility model relates to the technical field of chemical industry, in particular to a graphite heat exchanger device for scale inhibition and scale inhibition, which comprises a heat exchanger, a base, a liquid-phase forced circulation pump, a ceramic jet mixer, a circulating particle jet pump and a solid-liquid separator, wherein the heat exchanger comprises an upper tube box, a heat exchange tube bundle and a lower tube box, the heat exchange tube bundle consists of a plurality of graphite heat exchange tubes, and the inner walls of the graphite heat exchange tubes are provided with silicon carbide particles; the upper pipe box and the lower pipe box are respectively connected with the solid-liquid separator through pipelines, the liquid-phase forced circulation pump, the ceramic jet flow mixer and the circulating particle jet flow pump are respectively arranged on the connecting pipelines, and the lower pipe box is fixed on the base. The utility model discloses prolonged the online continuous active service cycle of graphite heat exchanger, maintained fresh heat transfer surface's high-efficient heat transfer, alleviated the condition that the heat exchange efficiency that leads to because of heat transfer surface adhesion dirt layer descends, reduced the artifical mechanical cleaning or the chemical cleaning number of times to graphite heat exchanger, prolonged the life of equipment, improved the operating efficiency of equipment, promoted economic benefits.
Description
Technical Field
The utility model relates to the technical field of chemical industry, especially, relate to a graphite heat exchanger device that hinders dirt and presses down dirt.
Background
The block hole type and the shell-and-tube type are two common traditional graphite heat exchangers, and the graphite heat exchanger is built by taking brittle graphite as a raw material; the stacking structure of the heat exchange units of the block-hole heat exchanger is more complex than that of a common shell-and-tube heat exchanger, the heat exchanger with serious scale is cleaned by paying special attention, equipment manufacturers are required to provide professional support during cleaning, the cleaning work difficulty of the graphite heat exchanger is higher, and the assembly process of the heat exchanger is more complicated.
The concentration process of the calcium chloride solution in the hydrochloric acid desorption device with calcium chloride as the azeotrope breaking agent is taken as an example, sulfate ions mixed in the calcium chloride agent are combined with calcium ions to generate calcium sulfate, and the calcium sulfate is attached and deposited on the graphite heat exchanger to cause the blockage of the graphite block hole type heat exchanger. The mechanical cleaning by high-pressure water flow has high working difficulty and large workload, or the chemical cleaning purpose is achieved by reacting alkali liquor and calcium sulfate to generate a slightly soluble substance, and the alkaline solution can damage the phenolic resin layer on the surface of the graphite. The cleaning process interrupts the continuous production process, reduces the operation efficiency of the device, and the enterprise income is influenced. The calcium chloride solution formed during disassembly is corrosive to steel equipment.
The single-effect evaporation concentration method of the high-concentration calcium chloride and the multi-effect evaporation concentration method of the high-concentration calcium chloride are characterized in that the content of residual hydrogen chloride in a calcium chloride solution in a hydrochloric acid desorption process is 0.1-1.0 w/w%, the concentration of the concentrated calcium chloride solution reaches 50 w/w%, the high-concentration calcium chloride solution is easy to crystallize during evaporation concentration, the high-concentration calcium chloride solution is seriously scaled during evaporation concentration, and crystals in a calcium chloride concentration reboiler form hoop stress on a pore channel of a graphite block pore heat exchange unit when being heated, so that graphite cracks and damages equipment.
The fluidized bed heat exchanger with the self-cleaning effect is widely applied to steel equipment, and is not applied to graphite equipment. Materials such as glass, ceramics, stainless steel and the like are generally used as circulating particles, and the impact of the circulating fluidized particles has a destructive effect on the graphite parts.
In summary, the scaling prevention problem of the graphite heat exchanger is a difficult problem facing us, and a device and a technical solution capable of solving the difficult problem are urgently needed to be found.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in providing a graphite heat exchanger device that hinders and hinder dirt, the high-efficient heat transfer of extension graphite heat exchanger online continuous service cycle, maintenance fresh heat transfer surface alleviates the condition that the heat exchange efficiency descends because of heat transfer surface adheres to the dirt layer and leads to, reduces the artifical mechanical cleaning or the chemical cleaning number of times to graphite heat exchanger.
The utility model provides a technical problem adopt following technical scheme to realize: a graphite heat exchanger device for scale inhibition and scale inhibition comprises a heat exchanger, a base, a liquid phase forced circulation pump, a ceramic jet mixer, a circulating particle jet pump and a solid-liquid separator,
the heat exchanger comprises an upper tube box, a heat exchange tube bundle and a lower tube box, wherein the heat exchange tube bundle consists of a plurality of graphite heat exchange tubes, and silicon carbide particles are arranged on the inner walls of the graphite heat exchange tubes;
the graphite heat exchange tube comprises an upper tube box, a lower tube box and a graphite heat exchange tube, wherein the bottom of the upper tube box is provided with a graphite upper tube plate, the top of the lower tube box is provided with a graphite lower tube plate, the graphite upper tube plate and the graphite lower tube plate are provided with a plurality of corresponding through holes, the top end of the graphite heat exchange tube is embedded in the lower part of the through hole of the graphite upper tube plate, the bottom end of the graphite heat exchange tube is embedded in the upper part of the through hole of the graphite lower tube plate, the lower part of the through hole of the; the lower pipe box is fixedly arranged on the base;
a first particle inlet is formed in the upper part of the right side of the lower pipe box, and a first liquid phase inlet is formed in the lower part of the left side of the lower pipe box; the bottom of the solid-liquid separator is provided with a particle outlet, the right side of the solid-liquid separator is provided with a circulating liquid outlet, and the left side of the solid-liquid separator is provided with a particle inlet II;
the top outlet of the heat exchanger is connected with the material inlet of the solid-liquid separator through a pipeline, the particle outlet is connected with the particle inlet of the ceramic jet flow mixer through a pipeline, the outlet of the ceramic jet flow mixer is connected with the particle inlet I through a pipeline, the circulating liquid inlet of the ceramic jet flow mixer is connected with the outlet of the circulating particle jet flow pump through a pipeline, the inlet of the circulating particle jet flow pump is connected with the outlet of the liquid-phase forced circulation pump through a pipeline, the outlet of the liquid-phase forced circulation pump is connected with the liquid-phase inlet I through a pipeline, and the inlet of the liquid-phase forced circulation pump is connected with the circulating liquid outlet.
Further, the particle material comprises circulating particles, wherein the circulating particles are made of one of silicon carbide, silicon nitride and zirconia, and the diameter of the circulating particles is 2-3 mm.
Further, arbitrary two bond through the clay between the carborundum sleeve pipe, carborundum sleeve pipe circumference is equipped with the scour protection and loses the fin, the scour protection loses the fin and is regular hexagon, arbitrary two clearance between the scour protection loses the fin is 1 ~ 2mm, is less than the diameter of circulation granule.
Further, a rubber protective layer is fixed on the lower surface of the edge of the graphite lower tube plate.
Furthermore, the solid-liquid separator is a screen mesh type solid-liquid separator, a steel lining PTFE screen frame is arranged in the screen mesh type solid-liquid separator, and a filament PTFE fiber woven screen is fixed on the steel lining PTFE screen frame.
Further, the solid-liquid separator is a gravity settling solid-liquid separator.
Furthermore, an inlet of the solid-liquid separator is provided with an elbow pipe, and the elbow pipe is made of wear-resistant ceramic.
Furthermore, a filtering device is arranged at the outlet of the liquid phase forced circulation pump and is used for intercepting circulating particles which are not properly separated from the liquid material.
The utility model has the advantages that:
the utility model discloses prolonged the online continuous active service cycle of graphite heat exchanger, maintained fresh heat transfer surface's high-efficient heat transfer, alleviated the condition that the heat exchange efficiency that leads to because of heat transfer surface adhesion dirt layer descends, reduced the artifical mechanical cleaning or the chemical cleaning number of times to graphite heat exchanger, prolonged the life of equipment, improved the operating efficiency of equipment, promoted economic benefits.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the solid-liquid separator with a screen according to the present invention;
FIG. 2 is a schematic view of the gravity settling solid-liquid separator of the present invention;
FIG. 3 is an enlarged schematic view of S of FIG. 1 according to the present invention;
FIG. 4 is a schematic structural view of the position relationship between the upper tube plate and the graphite heat exchange tube of the present invention;
fig. 5 is a schematic view of the bottom structure of the lower tube plate of the present invention;
in the figure: 1-heat exchanger, 2-base, 3-upper tube box, 4-heat exchange tube bundle, 5-lower tube box, 6-graphite upper tube plate, 7-graphite lower tube plate, 8-graphite heat exchange tube, 9-particle outlet, 10-circulating liquid outlet, 11-particle inlet II, 12-particle inlet I, 13-liquid phase inlet I, 14-liquid phase forced circulation pump, 15-ceramic jet mixer, 16-circulating particle jet pump, 17-silicon carbide sleeve, 18-rubber protective layer, 19-screen type solid-liquid separator, 20-gravity settling type solid-liquid separator and 21-elbow tube.
Detailed Description
The following embodiments are further described to make the technical solution and the advantageous effects of the present invention clearer and clearer. The following described embodiments are exemplary, are intended to be illustrative of the present invention, and are not to be construed as limiting the invention.
Example (b):
as shown in fig. 1-5, the utility model discloses a graphite heat exchanger device for scale inhibition and scale inhibition, which comprises a heat exchanger 1, a base 2, a liquid phase forced circulation pump 14, a ceramic jet mixer 15, a circulating particle jet pump 16 and a solid-liquid separator, wherein the solid-liquid separator can be selected from two types, namely a screen mesh type solid-liquid separator 19 or a gravity settling type solid-liquid separator 20; a steel lining PTFE screen frame is arranged in the screen type solid-liquid separator 19, and a filament PTFE fiber woven screen is fixed on the steel lining PTFE screen frame.
The heat exchanger 1 comprises an upper tube box 3, a heat exchange tube bundle 4 and a lower tube box 5, wherein the heat exchange tube bundle 4 is composed of a plurality of graphite heat exchange tubes 8, and silicon carbide particles are arranged on the inner walls of the graphite heat exchange tubes 8 and enhance the surface strength of graphite;
the bottom of the upper tube box 3 is provided with a graphite upper tube plate 6, the top of the lower tube box 5 is provided with a graphite lower tube plate 7, the graphite upper tube plate 6 and the graphite lower tube plate 7 are provided with a plurality of corresponding through holes, the top end of a graphite heat exchange tube 8 is embedded at the lower part of the through hole of the graphite upper tube plate 6, the bottom end of the graphite heat exchange tube 8 is embedded at the upper part of the through hole of the graphite lower tube plate 7, the lower part of the through hole of the graphite lower tube plate 7 is embedded with a silicon carbide sleeve 17, and the silicon carbide; the lower tube box 5 is fixedly arranged on the base 2;
a first particle inlet 12 is formed in the upper portion of the right side of the lower tube box 5, and a first liquid phase inlet 13 is formed in the lower portion of the left side of the lower tube box; the bottom of the solid-liquid separator is provided with a particle outlet 9, the right side of the solid-liquid separator is provided with a circulating liquid outlet 10, and the left side of the solid-liquid separator is provided with a particle inlet II 11;
the top outlet of the heat exchanger 1 is connected with the material inlet of the solid-liquid separator through a pipeline, the particle outlet 9 is connected with the particle inlet of the ceramic jet mixer 15 through a pipeline, the outlet of the ceramic jet mixer 15 is connected with the particle inlet 12 through a pipeline, the circulating liquid inlet of the ceramic jet mixer 15 is connected with the outlet of the circulating particle jet pump 16 through a pipeline, the inlet of the circulating particle jet pump 16 is connected with the outlet of the liquid-phase forced circulation pump 14 through a pipeline, the outlet of the liquid-phase forced circulation pump 14 is connected with the liquid-phase inlet 13 through a pipeline, and the inlet of the liquid-phase forced circulation pump 14 is connected with the circulating liquid outlet 10.
The material of the circulating particles is one of silicon carbide, silicon nitride and zirconia, and the diameter of the circulating particles is 2-3 mm.
Any two silicon carbide sleeves 17 are bonded through daub formed by mixing epoxy resin, a curing agent and graphite powder, erosion-resistant fins are arranged on the silicon carbide sleeves 17 in the circumferential direction and are regular hexagons, and the gap between any two erosion-resistant fins is 1-2 mm and smaller than the diameter of circulating particles; the silicon carbide sleeve is densely paved on the graphite tube plate, and the surface protection is formed on the graphite tube plate by the densely paved erosion-preventing fins.
A rubber protective layer 18 is fixed on the lower surface of the edge of the graphite lower tube plate 7 without tube arrangement, the edge of the graphite lower tube plate 7 can be provided with a countersunk bolt hole, and the rubber protective layer 18 is fixed with the edge of the graphite lower tube plate 7 through a graphite bolt; the edge of the graphite lower tube plate 7 can be provided with a countersunk clamping groove, and the rubber protective layer 18 is fixed with the edge of the graphite lower tube plate 7 through a plastic fastener.
The inlet of the solid-liquid separator is provided with an elbow pipe 21, the elbow pipe 21 is made of wear-resistant ceramic, and the ceramic pipe prevents solid particles from impacting an elbow to damage a non-metal lining when the solid particles are turned.
The outlet of the liquid phase forced circulation pump 14 is provided with a filtration device for retaining circulating particles which are not properly separated from the liquid material.
The utility model has the advantages that:
the utility model discloses prolonged the online continuous active service cycle of graphite heat exchanger, maintained fresh heat transfer surface's high-efficient heat transfer, alleviated the condition that the heat exchange efficiency that leads to because of heat transfer surface adhesion dirt layer descends, reduced the artifical mechanical cleaning or the chemical cleaning number of times to graphite heat exchanger, prolonged the life of equipment, improved the operating efficiency of equipment, promoted economic benefits.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (8)
1. A graphite heat exchanger device that hinders dirty and restrain is characterized in that: comprises a heat exchanger (1), a base (2), a liquid phase forced circulation pump (14), a ceramic jet mixer (15), a circulating particle jet pump (16) and a solid-liquid separator,
the heat exchanger (1) comprises an upper tube box (3), a heat exchange tube bundle (4) and a lower tube box (5), wherein the heat exchange tube bundle (4) consists of a plurality of graphite heat exchange tubes (8), and silicon carbide particles are arranged on the inner walls of the graphite heat exchange tubes (8);
the bottom of the upper tube box (3) is provided with a graphite upper tube plate (6), the top of the lower tube box (5) is provided with a graphite lower tube plate (7), the graphite upper tube plate (6) and the graphite lower tube plate (7) are provided with a plurality of corresponding through holes, the top end of the graphite heat exchange tube (8) is embedded in the lower part of the through hole of the graphite upper tube plate (6), the bottom end of the graphite heat exchange tube (8) is embedded in the upper part of the through hole of the graphite lower tube plate (7), the lower part of the through hole of the graphite lower tube plate (7) is embedded with a silicon carbide sleeve (17), and the silicon carbide sleeve (17) extends downwards into the lower tube box (5); the lower pipe box (5) is fixedly arranged on the base (2);
a first particle inlet (12) is formed in the upper portion of the right side of the lower channel box (5), and a first liquid phase inlet (13) is formed in the lower portion of the left side of the lower channel box; the bottom of the solid-liquid separator is provided with a particle outlet (9), the right side of the solid-liquid separator is provided with a circulating liquid outlet (10), and the left side of the solid-liquid separator is provided with a particle inlet II (11);
the top outlet of the heat exchanger (1) is connected with the material inlet of the solid-liquid separator through a pipeline, the particle outlet (9) is connected with the particle inlet of the ceramic jet mixer (15) through a pipeline, the outlet of the ceramic jet mixer (15) is connected with the particle inlet I (12) through a pipeline, the circulating liquid inlet of the ceramic jet mixer (15) is connected with the outlet of the circulating particle jet pump (16) through a pipeline, the inlet of the circulating particle jet pump (16) is connected with the outlet of the liquid-phase forced circulation pump (14) through a pipeline, the outlet of the liquid-phase forced circulation pump (14) is connected with the liquid-phase inlet I (13) through a pipeline, and the inlet of the liquid-phase forced circulation pump (14) is connected with the circulating liquid outlet (10).
2. The graphite heat exchanger device for scale inhibition and scale inhibition according to claim 1, further comprising circulating particles, wherein the material of the circulating particles is one of silicon carbide, silicon nitride and zirconia, and the diameter of the circulating particles is 2-3 mm.
3. The graphite heat exchanger device for scale inhibition and scale inhibition according to claim 2, wherein any two silicon carbide sleeves (17) are bonded through daub, erosion-resistant fins are arranged on the silicon carbide sleeves (17) in the circumferential direction and are regular hexagons, and the gap between any two erosion-resistant fins is 1-2 mm and smaller than the diameter of the circulating particles.
4. The graphite heat exchanger device for scale inhibition and scale inhibition as claimed in claim 1, wherein a rubber protective layer (18) is fixed on the lower surface of the edge of the graphite lower tube plate (7).
5. The graphite heat exchanger device for scale inhibition and scale inhibition according to claim 1, wherein the solid-liquid separator is a screen type solid-liquid separator (19), a steel lining tetrafluoro screen frame is arranged in the screen type solid-liquid separator (19), and a filament tetrafluoro fiber woven screen is fixed on the steel lining tetrafluoro screen frame.
6. The graphite heat exchanger device for scale inhibition and scale inhibition according to claim 1, wherein the solid-liquid separator is a gravity settling solid-liquid separator (20).
7. The graphite heat exchanger device for scale inhibition and scale inhibition as recited in claim 1, wherein the inlet of the solid-liquid separator is provided with an elbow pipe (21), and the elbow pipe (21) is made of wear-resistant ceramic.
8. The graphite heat exchanger device for scale inhibition and scale inhibition as recited in claim 1, characterized in that the outlet of the liquid phase forced circulation pump (14) is provided with a filtering device for trapping the circulating particles which are not properly separated from the liquid material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022239416.2U CN213273878U (en) | 2020-10-10 | 2020-10-10 | Graphite heat exchanger device of dirt inhibition and scale inhibition |
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| CN202022239416.2U CN213273878U (en) | 2020-10-10 | 2020-10-10 | Graphite heat exchanger device of dirt inhibition and scale inhibition |
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| CN213273878U true CN213273878U (en) | 2021-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146481A (en) * | 2020-10-10 | 2020-12-29 | 南通星球石墨股份有限公司 | Graphite heat exchanger device of dirt inhibition and scale inhibition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146481A (en) * | 2020-10-10 | 2020-12-29 | 南通星球石墨股份有限公司 | Graphite heat exchanger device of dirt inhibition and scale inhibition |
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