CN205151815U - Steam grading system - Google Patents
Steam grading system Download PDFInfo
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- CN205151815U CN205151815U CN201520993006.3U CN201520993006U CN205151815U CN 205151815 U CN205151815 U CN 205151815U CN 201520993006 U CN201520993006 U CN 201520993006U CN 205151815 U CN205151815 U CN 205151815U
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- steam
- pipeline
- steam pipe
- pipe network
- pressure steam
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Abstract
The utility model discloses a steam grading system, including high -pressure steam pipe net, heat exchanger, flash tank and low pressure steam pipe net, high pressure steam pipe net export intercommunication heat exchanger, heat exchanger intercommunication flash tank sets up hydrophobic valves of backpressure or the hydrophobic valves of two -phase flow or does not have backpressure condensate pump on the pipeline between the two, and the flash tank goes out steam ports intercommunication low pressure steam pipe net entry, gets into companion's heat / heating pipe of respectively accompanying the focus. The utility model discloses the accuracy is carried out in grades to the steam in fine chemistry industry workshop to the realization, and the flash distillation vapour of make full use of steam condensate aquatic is netted low pressure steam pipe and is carried out deciding temperature, level pressure, has both reduced the steam consumption, also stable system operation, and the input capital is few.
Description
Technical field
The utility model relates to steam energy conserving system field, is specifically related to steam hierarchy system.
Background technology
Steam in chemical production is energy-conservation is a large trend, and at present in large chemical industry, the classified utilization in high temperature, high pressure steam system has had ripe technique.In fine chemistry industry, the pressure of still kettle, usually at 0.5 ~ 1.0MPa, in the water of condensation of this part steam, can flash off part secondary steam, and equipment in workshop and the trace pipe road of pipeline, the heating pipeline of operational zone, all only need lower pressure, usually at 0.1 ~ 0.2MPa, and, in this section in low-pressure pipe network, do not require higher temperature, close to discharge place, as long as in fact there is hot water can reach companion's heat and the object be incubated in pipeline.But because steam uses the pressure reduction of point relatively little, use some operating mode relative complex, cause the more difficult realization of the classification of steam.Meanwhile, because steam drainage system easily lost efficacy, cause trap leaking amount comparatively large, waste of steam is serious.Although high-grade drain valve can be used to improve the efficiency of drain valve, with high costs, and still need updating maintenance after using the long period.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of steam hierarchy system, realize carrying out Accurate Classification to the steam in fine chemistry industry workshop, make full use of the flash steam in steam condensate, constant temperature, level pressure are carried out to low-pressure steam pipe network, both steam consumption was reduced, also stable system is run, and contributed capital is few.
The utility model is achieved through the following technical solutions:
Steam hierarchy system, comprise high pressure steam pipe network, interchanger, flash tank and low-pressure steam pipe network, described high pressure steam pipe network outlet interchanger, pipeline is between the two arranged Self-operated pressure reducing valve 1, interchanger is communicated with flash tank, pipeline is between the two arranged back pressure drain valve group or two phase flow drain valve group or without back pressure condensate pump, flash tank steam outlet is communicated with low pressure steam pipe web portal, enter the companion's heat/heating pipe of each companion's focus.
The condensed water elimination pipeline of the rectifying still of high pressure steam pipe network, the drain valve of the back pressure of hydrophobic employing band 0.1 ~ 0.2MPa, then concentrating is discharged in flash tank, in flash tank, secondary flash vapour will be produced, this flash steam is for the companion's heat/heating vapour pipe of low pressure, and abundant secondary flash vapour, improves energy utilization rate.If the hydrophobic of indivedual rectifying still for these other towers, changes independently two phase flow drain valve group by hydrophobic because processing requirement can not be with back pressure, or adopts without back pressure condensate pump, then back pressure can be avoided to have an impact to technique.
The further improvement project of the utility model is, what described high pressure steam pipe network exported separately establishes pipeline communication low pressure steam pipe web portal, and pipeline is provided with Self-operated pressure reducing valve two.
Technique due to fine chemistry industry is not totally continuous, draining system can be caused sometimes to have pressure, sometimes without pressure, for this reason, Self-operated pressure reducing valve one established by the pipeline of high pressure steam pipe network outlet interchanger, high pressure steam pipe network outlet simultaneously separately connects a pipeline communication low-pressure steam pipe network, pipeline is established Self-operated pressure reducing valve two, pressure setting is at 0.1 ~ 0.2MPa, so rectifying still hydrophobic little in, Self-operated pressure reducing valve one is closed, and Self-operated pressure reducing valve two is opened, by the companion heat/heating pipe network steam supply of high pressure steam pipe network directly to low-pressure steam pipe network; And when rectifying still is hydrophobic more, then flash steam pressure is higher, then Self-operated pressure reducing valve two is closed, and Self-operated pressure reducing valve one is opened, and lp system by flash steam steam supply, and can not get vapour from high pressure pipe network, reach the object of flash steam recycling.
The utility model further improvement project is, low-pressure steam pipe network is respectively accompanied on the companion of focus heat/heating tube terminal pipeline and installed thermostatic constant temperature drain valve, and pipeline connection is to water of condensation storage tank, and water of condensation storage tank is communicated with process water point.
Companion's heat/heating the tube terminal of low-pressure steam pipe network, use thermostatic constant temperature drain valve only hydrophobic, substantially be all the hot water of 70 ~ 80 DEG C in pipeline close to final hydrophobic place and there is no steam, steam also would not be had to spill from pipe network, thoroughly solve the leakage problem of steam pipe system.Simultaneously, adopt the FAQs solving steam pipe system that this trap is strong: in cold season, the steam-pipe of 0.1MPa pressure rating causes whole segment pipe frozen block because having little time hydrophobic, because whether thermostatic trap does not have water but with design temperature draining, be in the state of uninterrupted draining under normal circumstances, therefore avoid cold season temperature too low and occur the phenomenon of the overall frozen block of pipeline.
The utility model further improvement project is, the companion's heat/heating pipe series connection of each companion's focus.The heat energy of flash steam can be made full use of.
The utility model further improvement project is, the condensation-water drain pipeline of described flash tank is communicated with the water of condensation storage tank of low-pressure steam pipe network, and pipeline arranges throttling valve, and water of condensation storage tank is communicated with process water point.
Water of condensation in flash tank, by throttle valve adjustment, utilizes the pressure of low-pressure steam pipe network, water of condensation is pressed into water of condensation storage tank, as process water, both can ensure the liquid level in flash tank, and also can recycle water of condensation.
The utility model further improvement project is, is equipped with coil pipe in water of condensation storage tank.Water of condensation enters in storage tank after coil pipe again, by ensureing the temperature of technique water of condensation from heating.Meanwhile, utilize high-temperature condensation water to heat the water of condensation in water of condensation storage tank, further improve the heat energy utilization of whole system.
The utility model compared with prior art, has following obvious advantage:
The utility model selects the united application such as band back pressure trap, flash tank, throttling valve, Self-driven pressure-adjusting valve, thermostatic trap, realize carrying out Accurate Classification to the steam in fine chemistry industry workshop, make full use of the flash steam in steam condensate, constant temperature, level pressure are carried out to low-pressure steam pipe network, both steam consumption was reduced, also stable system is run, and contributed capital is few.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model comprises high pressure steam pipe network 1, interchanger 2, flash tank 3 and low-pressure steam pipe network 4, described high pressure steam pipe network 1 exports a road pipeline communication interchanger 2, pipeline is provided with Self-operated pressure reducing valve 1, interchanger 2 is communicated with flash tank 3, if pipeline is between the two arranged the hydrophobic because processing requirement can not be with back pressure of the indivedual rectifying still of back pressure drain valve group 5(, for these other towers, independently two phase flow drain valve group is changed into by hydrophobic, or adopt without back pressure condensate pump, back pressure is avoided to have an impact to technique), flash tank 3 steam outlet is communicated with low-pressure steam pipe network 4 entrance, enter the companion's heat/heating pipe 41 of each companion's focus, simultaneously high pressure steam pipe network 1 exports another road pipeline and is directly communicated with low-pressure steam pipe network 4 entrance, and pipeline is provided with Self-operated pressure reducing valve 27.
Low-pressure steam pipe network respectively accompanies the companion of focus heat/heating pipe 41 to adopt series connection as far as possible, and terminal pipeline is installed thermostatic constant temperature drain valve 42, pipeline connection is to water of condensation storage tank 43, and water of condensation storage tank 43 is communicated with process water point 44.
The condensation-water drain pipeline of described flash tank 3 is communicated with the water of condensation storage tank 43 of low-pressure steam pipe network, and pipeline is arranged throttling valve 45, water of condensation storage tank 43 is communicated with process water point 44.
Coil pipe is equipped with in described water of condensation storage tank 43.
Rectifying still hydrophobic little time, Self-operated pressure reducing valve one is closed, and Self-operated pressure reducing valve two is opened, by the companion heat/heating pipe network steam supply of high pressure steam pipe network directly to low-pressure steam pipe network; And when rectifying still is hydrophobic more, then flash steam pressure is higher, then Self-operated pressure reducing valve two is closed, and Self-operated pressure reducing valve one is opened, and high pressure steam is through decompression, deliver to interchanger, through the drain valve group of back pressure, enter flash tank, flash steam enters companion's heat/insulating pipe of each companion's focus of low-pressure steam webmaster, enter after condensation attached enter water of condensation storage tank, the process water point in each workshop is removed in reallocation; Water of condensation in flash tank then directly enters water of condensation storage tank, distributes the process water point going to each workshop.
Claims (6)
1. steam hierarchy system, it is characterized in that: comprise high pressure steam pipe network (1), interchanger (2), flash tank (3) and low-pressure steam pipe network (4), described high pressure steam pipe network (1) outlet interchanger (2), pipeline is between the two arranged Self-operated pressure reducing valve one (6), interchanger (2) is communicated with flash tank (3), pipeline is between the two arranged back pressure drain valve group (5) or two phase flow drain valve group or without back pressure condensate pump, flash tank (3) steam outlet is communicated with low-pressure steam pipe network (4) entrance, enter companion's heat/heating pipe (41) of each companion's focus.
2. steam hierarchy system according to claim 1, is characterized in that: pipeline communication low-pressure steam pipe network (4) entrance is separately established in described high pressure steam pipe network (1) outlet, and pipeline is provided with Self-operated pressure reducing valve two (7).
3. steam hierarchy system according to claim 1 and 2, it is characterized in that: low-pressure steam pipe network is respectively accompanied on the companion of focus heat/heating pipe (41) terminal pipeline and installed thermostatic constant temperature drain valve (42), pipeline connection is to water of condensation storage tank (43), and water of condensation storage tank (43) is communicated with process water point (44).
4. steam hierarchy system according to claim 3, is characterized in that: companion's heat/heating pipe (41) series connection of each companion's focus.
5. steam hierarchy system according to claim 1, it is characterized in that: the condensation-water drain pipeline of described flash tank (3) is communicated with the water of condensation storage tank (43) of low-pressure steam pipe network, pipeline is arranged throttling valve (45), water of condensation storage tank (43) is communicated with process water point (44).
6. steam hierarchy system according to claim 5, is characterized in that: with coil pipe in described water of condensation storage tank (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993006.3U CN205151815U (en) | 2015-12-04 | 2015-12-04 | Steam grading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993006.3U CN205151815U (en) | 2015-12-04 | 2015-12-04 | Steam grading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205151815U true CN205151815U (en) | 2016-04-13 |
Family
ID=55687530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520993006.3U Withdrawn - After Issue CN205151815U (en) | 2015-12-04 | 2015-12-04 | Steam grading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205151815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366750A (en) * | 2015-12-04 | 2016-03-02 | 淮安万邦香料工业有限公司 | Steam grading system |
-
2015
- 2015-12-04 CN CN201520993006.3U patent/CN205151815U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366750A (en) * | 2015-12-04 | 2016-03-02 | 淮安万邦香料工业有限公司 | Steam grading system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170915 |
|
| AV01 | Patent right actively abandoned |