CN218523991U - Device for reducing scaling of flue gas heat exchanger - Google Patents
Device for reducing scaling of flue gas heat exchanger Download PDFInfo
- Publication number
- CN218523991U CN218523991U CN202222331794.2U CN202222331794U CN218523991U CN 218523991 U CN218523991 U CN 218523991U CN 202222331794 U CN202222331794 U CN 202222331794U CN 218523991 U CN218523991 U CN 218523991U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- flue gas
- pipeline
- gas heat
- scale inhibitor
- 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.)
- Active
Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 59
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 11
- 239000000428 dust Substances 0.000 description 13
- 239000007921 spray Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to a gas heater field, concretely relates to reduce gas heater scale deposit device. The scale inhibitor storage tank is characterized by mainly comprising a scale inhibitor storage tank, wherein a bottom water outlet of the scale inhibitor storage tank is connected with a water outlet pipeline, the water outlet pipeline is connected with a water inlet of a circulating pump, a water outlet of the circulating pump is connected with a water inlet of a flow regulating valve through a pipeline, a water outlet of the flow regulating valve is connected with a water inlet of a check valve through a pipeline, a scale inhibitor flowmeter is arranged on the pipeline between the flow regulating valve and the check valve, a water outlet of the check valve is connected with a water inlet of a drain pipe through a pipeline, the drain pipe is horizontally provided with at least one row, the drain pipe is provided with a plurality of drain holes, and the drain pipe is positioned below a heat exchange pipe in the flue gas heat exchanger. The utility model realizes that the antisludging agent can be used for the flue gas heat exchanger under different states; different types of scale inhibitors with different concentrations can be selected according to requirements; the scaling condition of the heat exchanger is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a gas heater field, concretely relates to reduce gas heater scale deposit device.
Background
In carbon black production field, involve various dust gas heat transfer equipment that contain, including gas-gas heat transfer, dust flue gas heat transfer, indirect heating equipment such as liquid-gas heat transfer, wherein, dust flue gas indirect heating equipment is because of the particularity of its heat transfer medium, equipment is especially critical, and use most, can lead to the scale deposit of tube side inner wall among the long-time operation process, this scale deposit material piles up the wall built-up for the dust is long-time, cause heat exchanger efficiency to descend, can lead to production efficiency to descend when serious, the running cost risees, so it is a permanent topic how to ensure that gas heat exchanger's heat exchange efficiency is in efficient heat transfer state always.
Because the heat exchange medium contains dust, and dust particles reach the micron level, wall hanging is easy to generate after long-time accumulation, scaling is formed, the pipe wall is thickened, and the refrigerant medium cannot meet the heat exchange requirement, so that the heat exchange efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the prior art flue gas heat exchanger and often form the scale deposit and make heat exchange efficiency descend, manufacturing cost rising scheduling problem, provide a reduce flue gas heat exchanger scale deposit device.
The utility model discloses a realize through following technical scheme: the device for reducing the scale formation of the flue gas heat exchanger comprises the flue gas heat exchanger, wherein a plurality of heat exchange tubes are vertically arranged in an inner cavity of the flue gas heat exchanger, a smoke inlet at the bottom of the flue gas heat exchanger is connected with a smoke inlet pipeline, a smoke outlet at the upper part of the flue gas heat exchanger is connected with a smoke exhaust pipeline, the device for reducing the scale formation of the flue gas heat exchanger further comprises a scale inhibitor storage tank, a water outlet at the bottom of the scale inhibitor storage tank is connected with a water outlet pipeline, a first gate valve is arranged on the water outlet pipeline, the water outlet pipeline is connected with a water inlet of a circulating pump, a water outlet of the circulating pump is connected with a water inlet of a flow regulating valve through a pipeline, a water outlet of the flow regulating valve is connected with a water inlet of a check valve through a pipeline, a scale inhibitor flowmeter is arranged on the pipeline between the flow regulating valve and the check valve, a water outlet of the check valve is connected with a water inlet of a water drain pipe through a pipeline, the drain pipe is horizontally provided with at least one row, a plurality of drain holes are arranged on the drain pipe, and the drain pipe is positioned below the heat exchange tubes in the flue gas heat exchanger; a water outlet of the circulating pump is connected in parallel with a return pipeline, a second gate valve is arranged on the return pipeline, and the return pipeline is communicated with the inside of the antisludging agent storage tank; and a scale inhibitor feeding port is formed in the scale inhibitor storage tank.
Further preferably, a cofferdam is arranged on the periphery of the antisludging agent storage tank, and a distance is reserved between the cofferdam and the antisludging agent storage tank.
Further preferably, the scale inhibitor storage tank is made of stainless steel material.
Further preferably, a space is arranged between the water drain pipe and the bottom of the heat exchange pipe of the flue gas heat exchanger.
Further preferably, the device for reducing the scale formation of the flue gas heat exchanger further comprises an instrument control system, and the instrument control system is in signal connection with the circulating pump, the flow regulating valve and the scale inhibitor flowmeter.
Further preferably, the instrument control system is a DCS system.
Further preferably, a first hand valve is installed at the water inlet end of the circulating pump.
Preferably, the water inlet end and the water outlet end of the flow control valve are both provided with a second hand valve.
The utility model provides a reduce gas heater scale deposit device has following beneficial effect:
1. the wall-hanging frequency of dust of the flue gas heat exchanger is reduced, and long-time efficient operation is achieved;
2. the flue gas heat exchanger is a flue gas heat exchanger for the existing production, so that the scaling condition of the heat exchanger is reduced, the heat exchanger is operated efficiently, the cost is saved, and the production efficiency is improved;
3. the types of the scale inhibitors are not limited, and different types of scale inhibitors with different concentrations can be selected according to different requirements;
4. the instrument control system is an automatic control loop, and can realize the automatic adjustment of the frequencies of the regulating valve, the flow valve and the circulating pump along with a set value;
5. can be operated under different production conditions.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the connection of the overall structure of the present invention;
in the figure: 1-a scale inhibitor storage tank; 2-a circulating pump; 3-a flow regulating valve; 4-a scale inhibitor flow meter; 5-a non-return valve; 6, a drain pipe; 7-heat exchange tube; 8-flue gas heat exchanger; 9-a first gate valve; 10-a second gate valve; 11-an outlet pipe; 12-a return line; 13-cofferdam; 14-instrument control system.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and unless otherwise explicitly stated or limited, the terms "mounted", "connected" and "disposed" should be broadly construed and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a reduce flue gas heat exchanger scale deposit device, including flue gas heat exchanger 8, 8 inner chambers of flue gas heat exchanger are vertically provided with a plurality of heat exchange tubes 7, 8 bottom smoke inlets of flue gas heat exchanger are connected with smoke inlet pipeline, 8 upper portion exhaust ports of flue gas heat exchanger are connected with the exhaust pipe, in addition reduce flue gas heat exchanger scale deposit device still includes antisludging agent storage tank 1, the bottom delivery port of antisludging agent storage tank 1 is connected with outlet conduit 11, be provided with first gate valve 9 on outlet conduit 11, outlet conduit 11 is connected with the water inlet of circulating pump 2, the delivery port of circulating pump 2 passes through the pipeline and is connected with the water inlet of flow control valve 3, the delivery port of flow control valve 3 passes through the pipeline and is connected with the water inlet of check valve 5, be provided with antisludging agent flowmeter 4 on the pipeline between flow control valve 3 and the check valve 5, the delivery port of check valve 5 passes through the pipeline and is connected with the water inlet of drain pipe 6, drain pipe 6 level is provided with one row at least, be provided with a plurality of wash ports on drain pipe 6, drain pipe 6 is located the below heat exchange tubes 7 in flue gas heat exchanger 8; a return pipeline 12 is connected in parallel with the water outlet of the circulating pump 2, a second gate valve 10 is arranged on the return pipeline 12, and the return pipeline 12 is communicated with the inside of the scale inhibitor storage tank 1; and a scale inhibitor feeding port is formed in the scale inhibitor storage tank 1.
When the specific implementation, when the flue gas production line normally operates, the flue gas that the reaction zone produced under the prior art gets into gas heater 8 through advancing tobacco pipe way, carries out the heat transfer through a plurality of heat exchange tubes 7 of 8 inside settings of gas heater and handles, then gets into the exhaust pipe, gets into next process through the exhaust pipe, the utility model discloses an artifical antisludging agent of preparing required concentration, then to adding the antisludging agent solution of preparing wherein through the antisludging agent feed inlet that sets up on antisludging agent storage tank 1, open circulating pump 2, flow control valve 3 and antisludging agent flowmeter 4, open first gate valve 9, antisludging agent solution gets into outlet pipe 11 from the bottom export of antisludging agent storage tank 1, gets into circulating pump 2 after the pressurization of circulating pump 2, gets into flow control valve 3, antisludging agent flowmeter 4 and check valve 5 in proper order, gets into drain pipe 6 at last. The pressurized scale inhibitor solution forms spray after passing through a drain hole arranged on the drain pipe 6 and is sprayed in the flue gas heat exchanger 8; the flue gas entering from the flue gas inlet pipeline firstly passes through the drain pipe 6, the scale inhibitor sprayed by the drain hole of the drain pipe 6 is sprayed and attached to the flue gas dust, and the scale inhibitor spray enters the heat exchange pipe 7 in the flue gas heat exchanger 8 along with the flue gas dust, so that the scale inhibitor spray is spread on the inner wall of the heat exchange pipe 7, and the scale formed by the wall hanging of the flue gas dust on the heat exchange pipe 7 in the flue gas heat exchanger 8 is reduced under the action of the scale inhibitor spray, so that the flue gas heat exchanger 8 can run at high efficiency. When the value of the antisludging agent flowmeter 4 deviates from the required parameters, the flow of the antisludging agent solution in the pipeline can be adjusted by adjusting the flow regulating valve 3 and the circulating pump 2. When the production line needs to be overhauled or is in a shutdown state, the first gate valve 9, the flow regulating valve 3 and the scale inhibitor flowmeter 4 are closed, the second gate valve 10 is opened, and the scale inhibitor solution returns to the scale inhibitor storage tank 1 again through the return pipeline 12 under the action of the circulating pump 2.
When the production line is in different production states, different types of scale inhibitor solutions with different concentrations can be selected according to requirements, and the steps are repeated.
Specifically, in this embodiment, a cofferdam 13 is disposed on the periphery of the scale inhibitor storage tank 1, and a distance is provided between the cofferdam 13 and the scale inhibitor storage tank 1. An accommodating tank is formed between the cofferdam 13 and the outer wall of the scale inhibitor storage tank 1, and when the scale inhibitor solution overflows from the scale inhibitor storage tank 1, the cofferdam 13 can intercept the scale inhibitor solution, so that the environmental pollution caused by the discharge of the scale inhibitor solution is avoided.
Specifically, in this embodiment, the scale inhibitor storage tank 1 is made of a stainless steel material, which increases the strength of the scale inhibitor storage tank 1.
Specifically, in the present embodiment, a space is provided between the drain pipe 6 and the bottom of the heat exchange pipe 7 of the flue gas heat exchanger 8. The contact time of the scale inhibitor spray and the flue gas dust is prolonged, so that the scale inhibitor spray can be uniformly dispersed in the flue gas dust, and the scaling condition of the flue gas dust on the flue gas heat exchanger 8 is further reduced.
Specifically, in this embodiment, the device for reducing scale formation in a flue gas heat exchanger further includes an instrument control system 14, and the instrument control system 14 is in signal connection with the circulation pump 2, the flow regulating valve 3 and the scale inhibitor flowmeter 4. The instrument control system 14 can realize the automatic adjustment of the flow of the scale inhibitor solution in the pipeline, the scale inhibitor flowmeter 4 can realize the real-time signal monitoring of the flow of the scale inhibitor solution in the pipeline, and when the flow of the scale inhibitor in the pipeline is different from the set parameter, the instrument control system 14 automatically adjusts the circulating pump 2 and the flow regulating valve 3, so that the flow of the scale inhibitor is reduced or increased to reach the set parameter value. The labor force of workers is reduced, the labor is reduced, and the cost is saved.
Specifically, in this embodiment, the meter control system 14 is a DCS system. The DCS system is a comprehensive control system, and parameters and operation logics related in the embodiment need to be programmed into a DCS system control program to form automatic operation in normal and shutdown states.
Specifically, in this embodiment, the first hand valve is installed at the end of intaking of circulating pump 2. When the meter control system 14 cannot automatically adjust, the circulation pump 2 can be turned off by the first hand valve.
Specifically, in this embodiment, the second hand valve is installed at both the water inlet end and the water outlet end of the flow control valve 3. When the meter control system 14 cannot automatically adjust, the flow rate adjustment valve 3 can be closed by the second hand valve.
The utility model is directly installed at the lower position of the flue gas heat exchanger of the original system, and the opening states of the circulating pump 2, the flow regulating valve 3 and the antisludging agent flowmeter 4 are automatically adjusted by adopting the instrument control system 14, so that the accuracy is high, and the antisludging agent can be used for the flue gas heat exchanger 8 under different states; the type of the scale inhibitor is not limited, and different scale inhibitors can be selected according to different requirements; the scaling condition of the heat exchanger is reduced, the heat exchanger can run efficiently, the cost is saved, and the production efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The device for reducing the scale formation of the flue gas heat exchanger comprises the flue gas heat exchanger (8), wherein a plurality of heat exchange tubes (7) are vertically arranged in an inner cavity of the flue gas heat exchanger (8), a smoke inlet at the bottom of the flue gas heat exchanger (8) is connected with a smoke inlet pipeline, and a smoke outlet at the upper part of the flue gas heat exchanger (8) is connected with a smoke exhaust pipeline, and is characterized by further comprising a scale inhibitor storage tank (1), a water outlet at the bottom of the scale inhibitor storage tank (1) is connected with a water outlet pipeline (11), a first gate valve (9) is arranged on the water outlet pipeline (11), the water outlet pipeline (11) is connected with a water inlet of a circulating pump (2), a water outlet of the circulating pump (2) is connected with a water inlet of a flow regulating valve (3) through a pipeline, a water outlet of the flow regulating valve (3) is connected with a water inlet of a check valve (5) through a pipeline, a scale inhibitor flowmeter (4) is arranged on the pipeline between the flow regulating valve (3) and the check valve (5), a water outlet of the circulating pump (5) is connected with a water inlet of a drain pipe (6) through a pipeline, at least one row of the drain pipe (6) is horizontally arranged, and a plurality of drain holes (7) are arranged below the heat exchange tubes (8); a water outlet of the circulating pump (2) is connected in parallel with a return pipeline (12), a second gate valve (10) is arranged on the return pipeline (12), and the return pipeline (12) is communicated with the inside of the scale inhibitor storage tank (1); and a scale inhibitor feeding port is formed in the scale inhibitor storage tank (1).
2. The device for reducing the scale formation of the flue gas heat exchanger according to claim 1, wherein a cofferdam (13) is arranged at the periphery of the scale inhibitor storage tank (1), and a distance is reserved between the cofferdam (13) and the scale inhibitor storage tank (1).
3. The device for reducing the scaling of the flue gas heat exchanger as recited in claim 1, wherein the scale inhibitor storage tank (1) is made of stainless steel material.
4. The device for reducing the scaling of the flue gas heat exchanger is characterized in that a distance is reserved between the drain pipe (6) and the bottom of a heat exchange pipe (7) of the flue gas heat exchanger (8).
5. The device for reducing the scaling of the flue gas heat exchanger as claimed in claim 1, further comprising an instrument control system (14), wherein the instrument control system (14) is in signal connection with the circulating pump (2), the flow regulating valve (3) and the antisludging agent flowmeter (4).
6. The apparatus of claim 5, wherein the instrumentation control system (14) is a DCS system.
7. The device for reducing the scaling of the flue gas heat exchanger as recited in claim 5, wherein a first hand valve is installed at the water inlet end of the circulating pump (2).
8. The device for reducing the scaling of the flue gas heat exchanger as recited in claim 5, wherein the water inlet end and the water outlet end of the flow regulating valve (3) are both provided with a second hand valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222331794.2U CN218523991U (en) | 2022-09-02 | 2022-09-02 | Device for reducing scaling of flue gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222331794.2U CN218523991U (en) | 2022-09-02 | 2022-09-02 | Device for reducing scaling of flue gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218523991U true CN218523991U (en) | 2023-02-24 |
Family
ID=85244345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222331794.2U Active CN218523991U (en) | 2022-09-02 | 2022-09-02 | Device for reducing scaling of flue gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218523991U (en) |
-
2022
- 2022-09-02 CN CN202222331794.2U patent/CN218523991U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212109611U (en) | Energy-efficient cooling tower for computer lab | |
| CN212362893U (en) | Mixed flow closed cooling tower | |
| CN218410287U (en) | A solution storage tank companion thermal system for urea is hydrolysised | |
| CN204873912U (en) | Normal atmospheric temperature deoxidization system for boiler | |
| CN112387139B (en) | Device for removing copper ions in nickel electrolysis mixed acid system by using hydrogen sulfide gas | |
| WO2025218437A1 (en) | Cooling water tank for carbonization tower | |
| CN219167753U (en) | Cooling crystallizer | |
| CN216799736U (en) | Vacuum device for automatically adjusting vacuum degree of vacuum tail gas during vacuum breaking | |
| CN217212552U (en) | Desulfurization slurry parameter measuring device | |
| CN115305994B (en) | Energy-saving device and method utilizing siphon energy absorbing capacity of pipe network | |
| CN210552887U (en) | Cooling water tank for extruder | |
| CN212127667U (en) | Acid adding device | |
| CN207894018U (en) | A kind of gas fired-boiler water supply hybrid control system | |
| CN115854082B (en) | Gas holder water seal device for removing ammonia gas from low-pressure gas and use method thereof | |
| CN219942327U (en) | High-efficient circulating hydrogen desulfurizing tower with outside accuse temperature ability | |
| CN219083121U (en) | Oil drain structure and heat accumulating type thermal combustion equipment | |
| CN224065964U (en) | Improved generation cooling tower | |
| CN220393420U (en) | Alkali adding device of generator stator cooling water system | |
| CN216717047U (en) | Automatic water replenishing device for vacuum breaking valve of steam turbine condenser | |
| CN221038642U (en) | Water seal monitoring device | |
| CN222683266U (en) | Overflow device for ammonia water solution tank | |
| CN222995436U (en) | Automatic drainage device for tail gas of fuel cell | |
| CN112875890A (en) | Novel air lifting device | |
| CN218794971U (en) | RCO exhaust treatment device | |
| CN218320798U (en) | Intelligent carbon dioxide generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |