CN205619798U - Alloy coiled concentrated acid sampling cooler - Google Patents
Alloy coiled concentrated acid sampling cooler Download PDFInfo
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- CN205619798U CN205619798U CN201521117164.9U CN201521117164U CN205619798U CN 205619798 U CN205619798 U CN 205619798U CN 201521117164 U CN201521117164 U CN 201521117164U CN 205619798 U CN205619798 U CN 205619798U
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Abstract
The utility model relates to an alloy coiled concentrated acid sampling cooler. The utility model provides an alloy coiled concentrated acid sampling cooler, this cooler is rational in infrastructure, and the non -corrosibility can be good, and the heat transfer effect is good. Including the cooler body, its top is sealed by the blind flange, and the top is equipped with import of high temperature concentrated acid and the export of low temperature concentrated acid respectively, and cooling water inlet and coolant outlet are upper and lower both sides and distribute, the heat exchange tube be the coiled, it is made for corrosion resistant alloy, the cooler lateral part still be equipped with the counterflush mouth and have the drain of headstock gear, this counterflush mouth is located the upside, the drain is located the bottom, cooler inboard bottom be equipped with inclined floor, the confined space who is formed by inclined floor, cooler inside wall and blind flange is the heat transfer cavity. The heat transfer of this concentrated acid sampling cooler is effectual, rational in infrastructure, and corrosion resistance is good, can arrange sediment and counterflush on line.
Description
Technical field
This utility model relates to a kind of sampling heat exchange chiller, is specifically related to a kind of alloy disc tubular type concentrated acid sampling cooler.
Background technology
A kind of make heat be delivered to the equipment of cold flow body, referred to as heat transmission equipment (heat exchanger) from hot fluid, be a kind of common apparatus being widely used in the industrial trades such as oil, chemical industry, power, metallurgy, food, light industry, refrigeration, pharmacy, machinery.Because it is paid much attention to by countries in the world government and research institution in the importance of chemical industry, the research of heat transmission equipment.What the quality of its performance not only directly influenced that all departments produce is smoothed out and control to product quality, and is likely to result in the problems such as the high energy consumption of himself, poor efficiency and poor reliability.In vague generalization factory, the investment of heat transmission equipment accounts for the 10%～20% of gross investment；In oil plant, account for 35%～40%.In the industrial production, the Main Function of heat transmission equipment is to make heat be passed to, by the fluid that temperature is higher, the fluid that temperature is relatively low, makes fluid temperature (F.T.) reach the index of process stipulation, to meet the needs in technological process.Additionally, heat transmission equipment is also the efficient apparatus of recovery waste heat, used heat particularly Lowlevel thermal energy.In sulfate system, heat exchanger is a kind of visual plant making heat energy be fully used.
In the industrial production, due to the difference of purposes, working condition and material characteristic, the heat transmission equipment of multi-form and structure occurs.Can be divided into by action principle or heat transfer type: direct contact type, heat accumulating type, dividing wall type, middle thermophore formula heat exchanger etc..Dividing wall type heat exchanger can be divided into tubular type, plate facial.Pipe heat exchanger is to carry out, by pipe wall, the heat exchanger that conducts heat, is broadly divided into coil heat exchanger, double pipe heat exchanger, coiled heat exchanger and shell-and-tube heat exchanger by the version difference of heat-transfer pipe.
Sulfate system produces the concentrated sulphuric acid obtained, and the quality of quality directly embodies the success or failure of whole process system, also directly represent the economic benefit of system.Therefore, will be sampled the finished product concentrated sulphuric acid produced analyzing.And the finished acid temperature generally just produced is higher, the method of domestic a lot of sulfuric acid plants sampling sulphuric acid is the most universal, only on acid tube road, open one projection, draw with small takeover, at tail end, one valve is installed, common barreled container when needing to sample, open valve, allow concentrated acid flow to, be analyzed again after acid natural cooling.There is certain danger in such way, because the general temperature of concentrated sulphuric acid now is higher, and has strong corrosivity, if imprudence splashes on the body of operator, it will operator causes certain personal injury, and pollutes the environment.Therefore, the sampling acid cooler of a highly effective and safe is imperative.First having to carry out the high-temperature concentrated sulfuric acid needing sampling heat exchange cooling, and the acid amount being commonly used to sampling is not too large, the small-sized sampling acid cooler of a function admirable is particularly important, and the floor space of this equipment can not be the biggest.
Additionally, in the work of concentrated acid heat exchange sampling, in addition it is also necessary to solution problems with:
(1) concentrated acid needs more preferable heat transfer effect.
(2) the sampling cooling of concentrated acid, the antiseptic property for equipment has higher requirement.
(3) there is dirt in sampler, easily cause equipment blocking.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides a kind of alloy disc tubular type concentrated acid sampling cooler, and this cooler construction is reasonable, and antiseptic property is good, and heat transfer effect is good.
This utility model be the technical scheme is that a kind of alloy disc tubular type concentrated acid sampling cooler, including cooler body, its top is sealed by blind flange, top is respectively equipped with high temperature concentrated acid import and the outlet of low temperature concentrated acid, described cooler body side is respectively equipped with cooling water inlet and coolant outlet, it is provided with heat exchanger tube inside described cooler, this heat exchanger tube exports with high temperature concentrated acid import and low temperature concentrated acid respectively and is connected, and described cooling water inlet and coolant outlet are the distributions of upper and lower both sides；Described heat exchanger tube is coiled, and it is made for corrosion resistant alloy material；Described cooler sidepiece is additionally provided with back flush mouth and the sewage draining exit with headstock gear, and this back flush mouth is positioned at upside, and sewage draining exit is positioned at bottom；Described cooler inside bottom is provided with inclined floor, inclined floor, cooler medial wall and blind flange the sealing space formed is heat exchange chamber.
Further, described cooler body is the column casing bodily form.
Further, the heat-transfer area of described heat exchanger tube is the coil bending to flat board or cylinder.
Further, described headstock gear is ball valve.
Further, described alloy material is corrosion resistant rustless steel.
Further, described inclined floor angle of inclination is 10 ° to 15 °.
Further, described inclined floor angle of inclination is 12 °.
Further, heat exchanger tube is welded to connect with blind flange.
The beneficial effects of the utility model are: owing to taking technique scheme, this concentrated acid sampling cooler good effect of heat exchange, rational in infrastructure, and good corrosion resistance can deslagging and back flush online.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
In figure 1, cooler body；11, high temperature concentrated acid import；12, low temperature concentrated acid outlet；13, cooling water inlet；14, coolant outlet；2, blind flange；3, heat exchanger tube；4, back flush mouth；5, sewage draining exit；6, inclined floor.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further:
As shown in Figure 1, a kind of alloy disc tubular type concentrated acid sampling cooler, including cooler body 1, its top is sealed by blind flange 2, top is respectively equipped with high temperature concentrated acid import 11 and low temperature concentrated acid outlet 12, described cooler body 1 sidepiece is respectively equipped with cooling water inlet 13 and coolant outlet 14, heat exchanger tube 3 it is provided with inside described cooler, this heat exchanger tube 3 exports 12 with high temperature concentrated acid import 11 and low temperature concentrated acid respectively and is connected, and described cooling water inlet 13 and coolant outlet 14 are the distributions of upper and lower both sides；Described heat exchanger tube 3 is coiled, and it is made for corrosion resistant alloy material；Described cooler sidepiece is additionally provided with back flush mouth 4 and the sewage draining exit 5 with headstock gear, and this back flush mouth 4 is positioned at upside, and sewage draining exit 5 is positioned at bottom；Described cooler inside bottom is provided with inclined floor 6, inclined floor 6, cooler medial wall and blind flange 2 the sealing space formed is heat exchange chamber.
Described cooler body 1 is the column casing bodily form.
The heat-transfer area of described heat exchanger tube 3 is the coil bending to flat board or cylinder.
Described headstock gear is ball valve.
Described alloy material is to select rare-earth element modified special stainless steel, and material detailed content sees Chinese patent CN200410041193.1.
Described inclined floor 6 angle of inclination is 10 ° to 15 °.
Described inclined floor 6 angle of inclination is 12 °.
Heat exchanger tube 3 is welded to connect with blind flange 2.
Multiple different naming method is had, as the sulphuric acid heater of sulfate system, sulfuric acid cooler, instrument acid cooler, sampling acid cooler etc., broadly fallen into heat exchanger according to heat exchanger use.
When conventional heat exchanger type selecting, need the factor considered a lot, mainly the speciality of fluid, pressure, temperature and the scope of permission pressure drop；To the requirement cleaned, keep in repair；Material price；Service life etc..The physical propertys such as the kind of fluid, thermal conductivity, viscosity, and the chemical property such as corrosivity, thermal sensitivity, the type selecting of heat exchanger has a great impact.For the heat exchanger of sulfate system, usual side is the concentrated sulphuric acid medium of deep-etching, and opposite side is water or other media, then, the material of selection is particularly important.The high temperature resistant concentrated sulphuric acid specialty alloy materials (Chinese patent CN200410041193.1, hereinafter referred to as XDS) of Xuan Da industry group independent research, has obtained good application on the heat transmission equipment of sulfuric acid industry.This patent is exactly the application on sampling acid cooler of the serpentine coil formula heat exchanger of the special alloy making utilizing a surname to reach the corrosion of high temperature resistant concentrated sulphuric acid.
Serpentine coil immersion heat exchanger is a kind of heat exchanger using coil as heat transfer element, it it is a kind of ancient heat transmission equipment, heat exchanger tube is fabricated to spiral serpentine convolutions, hot fluid (or cold flow body) is walked in pipe, walking cold flow body (or hot fluid) outside pipe, coil pipe is immersed directly in shell side (cold and hot), and tube side and shell side are respectively arranged with the import and export of (heat is cold) fluid, cold fluid and hot fluid turnover is in opposite direction, carries out heat exchange by coil pipe tube wall.The diameter of heat exchanger tube, coil diameter and the number of turns directly influence heat exchange area and heat exchange efficiency, and its structure is relatively easy, and heat exchange efficiency is high, floor space is little, manufacture, install, easy to clean, if it occur that leakage or corrosion, be convenient for changing or keep in repair the heat exchange original paper of damage.
In sulfate system, needing the concentrated sulphuric acid concentration of sampling to be generally about 98.8%, temperature is about 150 DEG C；In sulfuric acid low temperature residual neat recovering system, needing the concentrated sulphuric acid concentration of sampling to be generally about 99.6%, temperature is about 250 DEG C.It is analyzed it is generally required to sampling acid temperature is cooled to about 70 DEG C.Using cooling water to cool down, the temperature of cooling water is generally room temperature, the highest is less than 30 DEG C, is warming up to about 70 DEG C, does not allow more than water boiling temperature after heat exchange.The alloy disc tubular type concentrated sulphuric acid sampling cooler of this patent design, uses immersion structure, and high-temperature concentrated sulfuric acid walks tube side in pipe, and cooling water walks shell side.XDS special alloy selected by tube side coil pipe, the extraordinary high-silicon austenite stainless steel of the high temperature resistant concentrated sulphuric acid corrosion of XDS special alloy Shi Xuanda group independent research, to the decay resistance of high-temperature concentrated sulfuric acid and excellent, it is widely used on sulfate system dry absorption section at home.Turning around, with the small-bore whole straight tube of XDS, the serpentine coil heat exchanger tube being made, globality is strong, omnidistance no-welding-seam, fine corrosion resistance in this operating mode.Shell-side cylinder uses 304 rustless steels to make.The serpentine coil entirety immersion made is installed in shell-side cylinder, and during work, high-temperature concentrated sulfuric acid flows out from outlet after import passes into serpentine coil, for cooling water in shell-side cylinder, cools down water bottom in and top out.
This sampling acid cooler maximum difficult point is selection, because in pipe being high-temperature concentrated sulfuric acid, pipe is outer for cooling water, if it occur that leakage, concentrated sulphuric acid mixes with water can produce substantial amounts of heat, and the sulphuric acid after dilution has the corrosivity of strong reproducibility simultaneously, can by whole serpentine coil and heat exchanger shell in the section time internal corrosion fall, sampling acid " pollution ", produces tremendous influence to whole process system, and the consequence of generation is the most serious.Therefore, the selection of coil pipe is particularly important.A surname reaches the extraordinary high-silicon austenite stainless steel of the XDS high temperature resistant concentrated sulphuric acid corrosion of independent research, to the decay resistance of high-temperature concentrated sulfuric acid and excellent, and can adapt to concentrated sulphuric acid corrosion change from high temperature to low temperature completely.Simultaneously, used by this root serpentine coil is that the XDS straight pipe with small diameter of whole turns around and forms, import and export has one girth joint the most end to end, for the sour sampler of the tubular structure of dual-tubesheet, can be avoided that weld seam is many completely and the Corrosion Potential that brings.
This acid cooler, the most just selection science, and also also different from conventional disc heat exchange of heat pipe structure in structure.XDS serpentine coil is imported and exported and is located at the same side, and the cover plate being connected with sampling cylinder is drilled with two holes, and serpentine coil is imported and exported after placing, and root weld is fixed, and imports and exports top and is welded with the flange being connected with extraneous acid tube, and flange material also chooses XDS.Overall XDS serpentine coil passes through Flange joint with shell-side cylinder, with the external world also Flange joint, also allow for in-site installation and maintenance, when needing maintenance, after only all for flange securing member pines need to being removed, XDS coil pipe entirety is proposed, the new coil pipe that more transducer set is standby, repair time is short, does not affect production.
In shell-side cylinder, upper setting under cooling water outlet and inlet, bottom in and top out, contrary with high-temperature concentrated sulfuric acid flow direction in pipe, countercurrent flow.Set up backwash mouth above cylinder, realize function of on-line cleaning when equipment normally works.
Cylinder bottom plate designed inclination angle degree, lowest part arranges sewage draining exit, it is achieved online dirt eliminating function.Online backwashing mouth and base plate tilt and the design of sewage draining exit, make the maintenance of whole equipment and clean convenient, preventing cylinder and heat exchanger tube outer wall fouling, limited enhancing heat exchange efficiency and service life.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention; but invention thought of the present utility model is not limited to that utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (7)
1. an alloy disc tubular type concentrated acid sampling cooler, including cooler body, its top is sealed by blind flange, top is respectively equipped with high temperature concentrated acid import and the outlet of low temperature concentrated acid, described cooler body side is respectively equipped with cooling water inlet and coolant outlet, being provided with heat exchanger tube inside described cooler, this heat exchanger tube exports with high temperature concentrated acid import and low temperature concentrated acid respectively and is connected, it is characterised in that: described cooling water inlet and coolant outlet are the distributions of upper and lower both sides；Described heat exchanger tube is coiled, and it is made for corrosion resistant alloy material；Described cooler sidepiece is additionally provided with back flush mouth and the sewage draining exit with headstock gear, and this back flush mouth is positioned at upside, and sewage draining exit is positioned at bottom；Described cooler inside bottom is provided with inclined floor, inclined floor, cooler medial wall and blind flange the sealing space formed is heat exchange chamber；Described alloy material is corrosion resistant rustless steel.
Alloy disc tubular type concentrated acid sampling cooler the most according to claim 1, it is characterised in that: described cooler body is the column casing bodily form.
Alloy disc tubular type concentrated acid sampling cooler the most according to claim 1, it is characterised in that: the heat-transfer area of described heat exchanger tube is the coil bending to flat board or cylinder.
Alloy disc tubular type concentrated acid sampling cooler the most according to claim 1, it is characterised in that: described headstock gear is ball valve.
Alloy disc tubular type concentrated acid sampling cooler the most according to claim 1, it is characterised in that: described inclined floor angle of inclination is 10 ° to 15 °.
Alloy disc tubular type concentrated acid sampling cooler the most according to claim 5, it is characterised in that: described inclined floor angle of inclination is 12 °.
7. according to the arbitrary described alloy disc tubular type concentrated acid sampling cooler of claim 1-6, it is characterised in that: heat exchanger tube is welded to connect with blind flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117164.9U CN205619798U (en) | 2015-12-29 | 2015-12-29 | Alloy coiled concentrated acid sampling cooler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117164.9U CN205619798U (en) | 2015-12-29 | 2015-12-29 | Alloy coiled concentrated acid sampling cooler |
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| CN205619798U true CN205619798U (en) | 2016-10-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455118A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The method for sampling cooler scale removal |
| CN112129133A (en) * | 2020-08-04 | 2020-12-25 | 北京航天试验技术研究所 | Propellant heat exchange device for conventional liquid rocket engine |
| CN113648952A (en) * | 2021-08-17 | 2021-11-16 | 镇海石化工业贸易有限责任公司 | Inner cooling pipe of polymerization kettle, inner cooling system of polymerization kettle and construction method |
-
2015
- 2015-12-29 CN CN201521117164.9U patent/CN205619798U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455118A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The method for sampling cooler scale removal |
| CN112129133A (en) * | 2020-08-04 | 2020-12-25 | 北京航天试验技术研究所 | Propellant heat exchange device for conventional liquid rocket engine |
| CN113648952A (en) * | 2021-08-17 | 2021-11-16 | 镇海石化工业贸易有限责任公司 | Inner cooling pipe of polymerization kettle, inner cooling system of polymerization kettle and construction method |
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