CN2323343Y - Double casing type high-efficiency fluid temp.-reducing and pressure-decreasing device - Google Patents
Double casing type high-efficiency fluid temp.-reducing and pressure-decreasing device Download PDFInfo
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- CN2323343Y CN2323343Y CN 98209812 CN98209812U CN2323343Y CN 2323343 Y CN2323343 Y CN 2323343Y CN 98209812 CN98209812 CN 98209812 CN 98209812 U CN98209812 U CN 98209812U CN 2323343 Y CN2323343 Y CN 2323343Y
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- 239000012530 fluid Substances 0.000 title claims abstract description 21
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
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- 239000000498 cooling water Substances 0.000 description 30
- 239000003638 chemical reducing agent Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 210000005239 tubule Anatomy 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001077 hypotensive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003276 anti-hypertensive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a double casing type high-efficiency fluid temperature-reducing and pressure-decreasing device, which is an improved design for an original double casing type cooler to have double functions of reducing the temperature and decreasing the pressure. The utility model comprises an outer casing tube wound into a spiral shape and an inner tube penetrating through the inner part of the outer casing tube. The utility model is characterized in that the inner diameter of the inner tube is no more than 4 millimeters. The utility model is suitable for the temperature-reducing and pressure-decreasing process for various high-temperature and high-pressure fluid during sampling and analyzing.
Description
The utility model is a kind of improvement to existing double-sleeve type cooler, relates to a kind of temperature with high efficiency reducing transformer that high-temperature, high pressure fluid is had simultaneously cooling and buck functionality.
Some production divisions are for certain production purpose, and usually the fluid with certain normal temperature and pressure becomes high-temperature, high pressure fluid.For example boiler, the reheater of departments such as thermal power plant, nuclear power station, petrochemical industry become the water under the normal temperature and pressure into saturated vapor, superheated steam, its temperature can reach 300～540 ℃, pressure can reach 10-20MPa, utilizes the steam under this state to go the pushing turbine generating, carries heat energy.The kind of contained harmful element in these high-temperature, high pressure fluids, the content size is closely related to safety, the economical operation of heat power equipment, conveyance conduit, these harmful substances of on-line monitoring are very important continuously, but the online analysis of components instrument (being commonly called as the chemical analysis instrument) that is used to monitor these materials can only be accepted the normal temperature and pressure sample, handle with regard to lowering the temperature to press from the HTHP sample flow that sampled point flows out, becoming the normal temperature and pressure sample could use for analytical instrument.
So far, traditional decrease temperature and pressure treating apparatus as shown in Figure 1: its core component is made of cooler (3) and pressure reducer (5).Be that the HTHP sample flow is cooled to normal temperature through HTHP valve (6-1), (6-2), (6-3) cooler (3-1), (3-2), pass through filter (4), pressure reducer (5) step-down becoming normal pressure sample stream again, flow out from valve (6-5) at last through safety valve (6-4), as the sample of analytical instrument or manual sampling.Used cooler mainly contains two kinds, i.e. tubular helix tube type shown in the accompanying drawing 2 and two bushing type.
Now use tubular helix tube type cooler, as shown in Figure 2, sample flow flows in helix tube, and it is that 1Cr18Ni9Ti pipe coiling by Ф 10-16mm forms, and urceolus leads to cooling water, with stainless steel or add anticorrosive coat carbon steel tube and make.The cooler weak effect of this structure in order to improve the utilization rate of cooling water, changes cooling water water inlet direction, and it is tangentially intake along barrel.For example the SQT type series steam of Nanjing Electric Power Automation Equipment factory manufacturing is concentrated sampling analysis device, interlock power chemical technology industrial corporation makes ZLS series water and steam sampling analytical equipment in the Electricity Department, and the cooler that uses in the new manufacturing SQZ of the power-equipment auxiliary factory series water and steam sampling device in the Suzhou all belongs to this type of.Cooler after the improvement also exists cooling cylinder, helix tube volume big, can not guarantee that in running the sample flow each several part fully carries out heat exchange in cooling water and the helix tube, and cooling effect can not be carried De Taigao.Because it is helix tube is thick, minimum in addition to the hypotensive effect of sample flow.
Traditional double-sleeve type cooler is identical with double-sleeve type fluid high-effective decrease temperature and pressure device structure of the present utility model, with reference to Fig. 4, stainless steel tube (as external diameter of pipe Ф 10-12mm in the 1Cr18Ni9Ti, outer external diameter of pipe is greater than Ф 20mm) by two different-diameters turns to helix tube.During work, interior pipe leads to sample flow, and logical cooling water goes in the same direction between the inner and outer pipes.The utilization rate of cooling water is higher in this class cooler, but the same with tubular helix tube type cooler sample flow is not possessed buck functionality.Cooler in the carbonated drink sampling rack in the power plant of some introducing equipments such as QSZ-I type machine stove carbonated drink analytical equipment that Electricity Department Tai Chuan power station instrucment and meter plant produces and Baosteel power plant for self-supply belongs to this type of.
For the normal temperature high voltage sample flow that cooler is flowed out is reduced to normal pressure, be equipped with special-purpose pressure reducer (5) in the cooler back, in the 70-80 age, common way is the capillary that sample flow is made by a stainless steel both at home and abroad, length is by how many decisions of step-down.Owing to be difficult for behind the capillary blockade handling, do not improve the eighties and make the spiral groove type pressure reducer, as shown in Figure 3, wherein (7) are adjusting rod, (8) be fine thread, promptly allow high pressure sample stream reach the step-down purpose by fine thread, sample flow is regulated by the physical length available adjustment bar of screw thread.Sampler factory almost adopts this pressure reducer at present, and this pressure reducer is convenient to unpick and wash after stopping up, but unpicks and washes back cracky sealing several times, causes seepage, needs in the use to safeguard meticulously.Stop up for reducing pressure reducer, be furnished with the removable filter (4) of making different structure with thin stainless steel wire in the pressure reducer front, it is more bothersome to clean this filter.
The purpose of this utility model provides a kind of double-sleeve type fluid high-effective decrease temperature and pressure device with cooling and step-down dual-use function, relates to a kind of improvement design to existing double-sleeve type cooler size factor.
The concrete scheme that realizes the utility model purpose is: double-sleeve type fluid high-effective decrease temperature and pressure device comprises turning to spiral helicine outer tube (1) and the interior pipe (2) in the outer tube (1) that it is characterized in that: the internal diameter of interior pipe (2) is not more than 4 millimeters.
The utility model is a kind of novel decrease temperature and pressure equipment, though finally finishing of task is identical with existing equipment shown in Figure 1, but caliber size makes it possess the decrease temperature and pressure function simultaneously after improving in to original double-sleeve type cooler, produced beyond thought effect, need not special-purpose pressure reducer in the use, cooler is replaced by the utility model, and the decrease temperature and pressure of sample flow is finished in equipment of double-sleeve type fluid high-effective decrease temperature and pressure device of the present utility model.As previously mentioned, special-purpose pressure reducer is that the easiest obstruction needs the parts of maintenance meticulously in the device.Concrete advantage applies of the present utility model exists:
1, the cooling water utilization rate is high.Because the sample flow pipe is thin, velocity in pipes is on average more than 8m/s, and curl, and the helix tube external diameter is little, and Reynolds number reaches 10
4The order of magnitude, sample stream is degree of depth turbulence-like in pipe, make the sample flow each several part by the tubule wall energy fully and cooling water carry out heat exchange, cooling water is for the helical movement in a narrow passage, the each several part of cooling water has sufficient chance to contact with the thin metal pipe outer wall again, absorb the heat that sample flow discharges, the 1/2-2/3 that evidence only need about conventional cooler cooling water inflow just can reach same cooling effect.Generally making cooling water with deionized water now, save cooling water, is exactly to reduce operating cost effectively.
2, has tangible hypotensive effect.Come sample estimates to flow according to the Fanning equation in the hydrodynamics at tube drop Δ P:
Wherein: the f-coefficient of friction
Length of tube in the L-
The V-fluid is mean flow rate in interior pipe
ρ-fluid density
G-acceleration of gravity
The di-inner tube diameter
D
c-spiral tube external diameter
If with water is example, as the long L=4m of sample flow tubule, inner diameter d i=0.002m, spiral tube outer diameter D
c=0.07m, water sample average speed V=8m/s, if get f=0.1, then tube voltage drop is about 2.8/MPa, during feasibility Experiment, tube voltage drop is near this calculated value.
When sample flow undergoes phase transition during by the decrease temperature and pressure device, for example, high temperature and high pressure steam is cooled when becoming water, and Fanning equation is inapplicable, and its pressure drop is bigger, even excessive because of pressure drop, makes sample stream not reach metered flow, needs to adopt thicker sample flow pipe.
3, sample flow has cleaning action to the sample flow tubule.Flow fast because of sample flow in the sample flow tubule is turbulence state (as working as metered flow 1500ml/min, bore 2mm manages interior sample flow rate and reaches 8m/s), tube wall is had the self-cleaning effect.
4, make easily, cost is low.
The utility model is described in further detail below in conjunction with embodiment shown in the drawings.
Fig. 1, traditional decrease temperature and pressure plant system drawing;
Fig. 2, tubular helix tube type cooler construction schematic diagram;
Fig. 3, spiral groove type pressure reducer structural representation;
Fig. 4, the utility model double-sleeve type fluid high-effective decrease temperature and pressure device structural representation.
The utility model structure as shown in Figure 4, its structure is identical with traditional double-sleeve type cooler construction, the variation of size is just arranged on the caliber of interior pipe (2), but the variation of size makes original double-sleeve type cooler change function, become the fluid high-effective decrease temperature and pressure device that has the decrease temperature and pressure dual-use function simultaneously, the decrease temperature and pressure of fluid is finished in equipment of the utility model, and tube has been changed equipment, brings remarkable advantage.
The utility model is to turn to spiral helicine outer tube (1) and the interior pipe (2) in the outer tube (1) constitutes by one, and two ends have sample fluid and cooling water outlet and inlet respectively.The interior Guan Jing of interior pipe (2) is not more than 4 millimeters.The internal diameter of bone pipe (2) can be as requested pressure drop Δ P and length of tube L and formed spiral tube outer diameter D
cBy formula:
Derivation is for concrete equipment, and the pressure drop Δ P of requirement, flow velocity V, fluid density ρ, coefficient of friction f immobilize, according to the length L and the spiral tube outer diameter D of the selected interior pipes of actual conditions (2)
c, can extrapolate the inner diameter d i of interior pipe (2).
The utility model material generally selects for use the 1Gr18Ni9Ti metal tube to make, and interior pipe (2) internal diameter is not more than 4 millimeters, and is selected by sample flow step-down size requirements.Wall thickness is selected by the pressure of sample flow, can meet the demands fully to generally requiring the 1-3 millimeter, makes it can satisfy the pressure requirement of bearing.The helical space that forms between outer tube (1) and the interior pipe (2) is a cooling-water duct, determines outer tube (1) internal diameter and wall thickness according to specific requirement.Evidence, helical form cooling-water duct cross-sectional area selects for use the 50-75 square millimeter more suitable, can extrapolate the internal diameter of outer tube (1) thus.When cooling water during at decrease temperature and pressure back pressure 0.2MPa, adopts the operation of the utility model decrease temperature and pressure device two-stage tandem more than or equal to cooling water at the inlet pressure of decrease temperature and pressure device, the energy satisfied temperature is the requirement that 540 ℃ high-temperature water is reduced to normal temperature fully.Certainly if improve the pressure reduction of cooling water, can suitably reduce outer tube (1) internal diameter at decrease temperature and pressure device inlet/outlet.Reduce the pressure reduction of cooling water, then need increase outer tube (1) internal diameter, pass through the decrease temperature and pressure device with the cooling water that guarantees capacity at decrease temperature and pressure device inlet/outlet.The wall thickness of outer tube (1) for 1Cr18Ni9Ti, selects for use its intensity of tubing of 1.5-2 millimeter directly enough by the decision of cooling water pressure.
By aforementioned formula as seen, di is more little when inner tube diameter, and pressure drop Δ P is big more, and antihypertensive effect is good more, but also shorter of pipe range L.But since in production reality since interior pipe (2) too carefully may result in blockage, so the inventor according to the test empirical evidence, the internal diameter of interior pipe (2) can satisfy needs of production at the 1-4 millimeter.
For example, power plant's stove water sampling is analyzed, and coolant-temperature gage is 540 ℃, and it is 1500 milliliters of per seconds that average flow is stated V, pipe (2) inner diameter d i is 2 millimeters in adopting, pipe range L is 8 meters, cooling-water duct cross-sectional area 50-75 square millimeter, the utility model that spiral tube external diameter 45-50 millimeter is made, the employing two-stage tandem uses, pressure drop Δ P can reach 3.0MPa, and cooling reaches the utility model purpose and requirement below 40 ℃.
And for example: to 284 ℃, mean flow rate V is the analysis of per second 1500ml steam sampling, and pipe (2) internal diameter is 4 millimeters in adopting, and pipe range L is 8 meters, cooling-water duct cross-sectional area 50-75 square millimeter, and the one-level series connection is used, and pressure drop Δ P reaches 1.2MPa, is cooled to below 39 ℃.
The course of work of the utility model decrease temperature and pressure is as follows, cooling water is introduced from cooling-water duct one end (as the lower end) of outer tube (1) inwall and the formation of interior pipe (2) outer wall, the whole cooling-water duct of flowing through is flowed out by the other end (as the upper end), and sample fluid in interior pipe to flow with the cooling water rightabout, be that the HTHP sample flow is introduced by interior pipe (2) upper end, flow through whole in the pipe (2), flow out by the lower end, in this process, heat that sample flow is with passes through interior pipe (2) inwall and passes to cooling water, by cooling water heat is taken away, when sample flow is managed (2) in flow path, pressure reduces simultaneously, thereby finishes the utility model purpose.
In actual production, in the general monitoring system a plurality of sampled points are arranged, each sampled point can be installed 1-2 decrease temperature and pressure device of the present utility model, also a plurality of decrease temperature and pressure devices of design and installation as required.
Claims (1)
1, double-sleeve type fluid high-effective decrease temperature and pressure device comprises turning to spiral helicine outer tube (1) and the interior pipe (2) in the outer tube (1) that it is characterized in that: the internal diameter of interior pipe (2) is not more than 4 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209812 CN2323343Y (en) | 1998-01-25 | 1998-01-25 | Double casing type high-efficiency fluid temp.-reducing and pressure-decreasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209812 CN2323343Y (en) | 1998-01-25 | 1998-01-25 | Double casing type high-efficiency fluid temp.-reducing and pressure-decreasing device |
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| Publication Number | Publication Date |
|---|---|
| CN2323343Y true CN2323343Y (en) | 1999-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98209812 Expired - Lifetime CN2323343Y (en) | 1998-01-25 | 1998-01-25 | Double casing type high-efficiency fluid temp.-reducing and pressure-decreasing device |
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| CN (1) | CN2323343Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387962C (en) * | 2005-08-08 | 2008-05-14 | 承慰才 | Self-regulating type vapor sampling rack for super (super) critical generator set |
| WO2012078609A3 (en) * | 2010-12-06 | 2013-01-03 | Saudi Arabian Oil Company | Combined colling of lube/seal oil and sample coolers |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN105352269A (en) * | 2015-12-09 | 2016-02-24 | 超滤动力（安徽）有限公司 | Helix tube type refrigerated dryer assembly |
| CN105484976A (en) * | 2016-01-19 | 2016-04-13 | 苏州帝凯维动物营养有限公司 | Air compressor |
| CN109140837A (en) * | 2018-08-10 | 2019-01-04 | 芜湖维软新材料有限公司 | A kind of horizontal condenser of U-shaped baffling pipeline |
| CN109857161A (en) * | 2019-01-31 | 2019-06-07 | 成都与非测控设备有限公司 | One kind being applied to ethylene unit chilling water ph value self-checking device |
-
1998
- 1998-01-25 CN CN 98209812 patent/CN2323343Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387962C (en) * | 2005-08-08 | 2008-05-14 | 承慰才 | Self-regulating type vapor sampling rack for super (super) critical generator set |
| WO2012078609A3 (en) * | 2010-12-06 | 2013-01-03 | Saudi Arabian Oil Company | Combined colling of lube/seal oil and sample coolers |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN105352269A (en) * | 2015-12-09 | 2016-02-24 | 超滤动力（安徽）有限公司 | Helix tube type refrigerated dryer assembly |
| CN105484976A (en) * | 2016-01-19 | 2016-04-13 | 苏州帝凯维动物营养有限公司 | Air compressor |
| CN109140837A (en) * | 2018-08-10 | 2019-01-04 | 芜湖维软新材料有限公司 | A kind of horizontal condenser of U-shaped baffling pipeline |
| CN109857161A (en) * | 2019-01-31 | 2019-06-07 | 成都与非测控设备有限公司 | One kind being applied to ethylene unit chilling water ph value self-checking device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Patentee address after: 132013 No. 2, No. 57, hi tech Zone, Jilin, Jilin Patentee address before: 132012, building 15, Ping An community, Changchun Road Power Institute, Jilin, Jilin |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |