CN205222830U - Alternate cycle water moisturizing softening installation is established in LNG production - Google Patents
Alternate cycle water moisturizing softening installation is established in LNG production Download PDFInfo
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- CN205222830U CN205222830U CN201520987568.7U CN201520987568U CN205222830U CN 205222830 U CN205222830 U CN 205222830U CN 201520987568 U CN201520987568 U CN 201520987568U CN 205222830 U CN205222830 U CN 205222830U
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Abstract
The utility model discloses an alternate cycle water moisturizing softening installation is established in LNG production, its characterized in that: including circulating water pond, circulating water pump, technology heat exchanger and forced cooling tower, circulating water pond, circulating water pump, technology heat exchanger and forced cooling tower loop through the tube coupling, still include to be connected soft water replenishment system with the municipal water supply pipe network, soft water replenishment system include through the pipeline in proper order with remote control ball -cock assembly, water softener, pipeline booster pump and trip valve that circulating water pond connects. The utility model provides an alternate cycle water moisturizing softening installation is established in LNG production realizes automatic water supply, and the water that supplyes is simultaneously handled through the water softener, has improved quality of water, has reduced the influence to equipment and pipeline, practices thrift the cycling use of water volume.
Description
Technical field
The utility model relates to lng production technical field of auxiliary equipment, particularly relates to a kind of LNG production unit circulating cooling make-up water softening installation.
Background technology
LNG is the abbreviation of English natural gas liquids (liquefiednaturalgas).Recirculated water is extracted out from cooling basin by water circulating pump (dual-purpose standby), is forced into 0.4-0.5MPa, delivers to LNG liquefaction process heat-exchange equipment by make-up cooling water pipe network.After each heat-exchange equipment heat exchange, there is pressure circulating backwater, deliver to cooling tower by circulating backwater pipe network, after spraying forced cooling by cooling tower, flow into circulating water pool.Cooled make-up cooling water is pressurizeed by water circulating pump again and delivers to technique heat-exchange equipment after Handling of Stabilizing Water Quality, filtration.The moisturizing of circulating water system is produced water supply network by plant area and is supplied, by DN100 filling pipe directly to circulating water pool moisturizing.Circulating cooling make-up water is provided by local municipal water supply, moisturizing water-quality guideline is: total hardness is about 850mg/L, calcium hardness is about 680mg/L, basicity is about 520mg/l, and circulating water system water quality design objective is: calcium hardness (< 660mg/L), total hardness+basicity (< 1100mg/L).Because moisturizing hardness etc. is higher, recirculated water has a large amount of evaporation in the process of cooling, and water intermediate ion concentration can rise by straight line, and wall and pipeline can produce a large amount of foulant, cause heat transfer effect sharply to worsen, and easily produces all kinds of corrosion.For ensureing that recirculated water normally runs and reduces the corrosion of each interchanger and fouling, recirculated water needs a large amount of benefits, row, displacement, and every daily water consumption about 700 tons/day, can meet circulating water quality index request.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of LNG production unit circulating cooling make-up water softening installation, realizes automatic water supplement, the water simultaneously supplemented is through water softener process, improve water quality, reduce the impact on equipment Pipe-Line, save cycling use of water amount.
The technical solution adopted in the utility model is:
A kind of LNG production unit circulating cooling make-up water softening installation, it is characterized in that: comprise circulating water pool, water circulating pump, technique interchanger and force cooling tower, described circulating water pool, water circulating pump, technique interchanger are connected by pipeline successively with pressure cooling tower, also comprise and be connected soft water replenishment system with municipal network water supply, described soft water replenishment system comprises the remote control float valve, water softener, blower pump for pipeline and the trip valve that are connected with described circulating water pool successively by pipeline.
Further, described blower pump for pipeline has two, is connected in parallel.
Further, described water circulating pump has three, is connected in parallel.
Further, between described circulating water pool and water circulating pump, strainer is provided with.
Further, in described circulating water pool, water quality on-line monitoring instrument is provided with.
The beneficial effects of the utility model are:
Moisturizing municipal network water supply supply in the utility model, by moisturizing pipeline directly to circulating water pool moisturizing, filling pipe caliber DN100, filling pipe is provided with trip valve, blower pump for pipeline, water softener, remote control float valve successively, under normal circumstances by remote control float valve according to the moisturizing of circulating water pool liquid automatic control.By arranging a set of (20T/h) water softening device, make moisturizing determining total hardness of water be down to about 640mg/l, calcium hardness is down to about 510mg/L, and basicity reduces to about 360mg/L, meets circulating water quality index request.The utility model reduces plant produced water consumption, and ensures plant circulation water system, the normal smooth running of each technique interchanger.After increasing soft water replenishment system, the every daily water consumption of recirculated water 500 tons/day can meet water-quality guideline.Water saving every day 200 tons, according to the calculation of price of local water of productive use 2.1 yuan/ton, can save 13.86 ten thousand yuan every year.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make the advantage of the purpose of this utility model and technical scheme clearly understand, below in conjunction with accompanying drawing and example, the utility model is further elaborated.
As shown in Figure 1, a kind of LNG production unit circulating cooling make-up water softening installation, comprise circulating water pool 1, water circulating pump 2, technique interchanger 3 and force cooling tower 4, described circulating water pool 1, water circulating pump 2, technique interchanger 3 are connected by pipeline successively with pressure cooling tower 4, also comprise and be connected soft water replenishment system with municipal network water supply, described soft water replenishment system comprises the remote control float valve 5, water softener 6, blower pump for pipeline 7 and the trip valve 8 that are connected with described circulating water pool 1 successively by pipeline.
Further, described blower pump for pipeline 7 has two, is connected in parallel, the using and the reserved.
Further, described water circulating pump 2 has three, is connected in parallel, dual-purpose one standby.
Further, between described circulating water pool 1 and water circulating pump 2, be provided with strainer 9, forced filtration is carried out to the water in circulating water pool, reduce the impact on late stage process interchanger 3 and each pipeline.
Further, in described circulating water pool 1, be provided with water quality on-line monitoring instrument, in real time the water quality in circulating water pool 1 monitored.
Mode of operation of the present utility model is:
Water circulating pump 2 extracts water coolant out from circulating water pool 1, by recirculated water water supply network deliver to technique heat exchange its 3.After technique heat exchange 3 heat exchange, there is pressure circulating backwater, after spraying forced cooling by forcing cooling tower 4, flowing into circulating water pool 1.Cooled make-up cooling water is pressurizeed by water circulating pump 2 after filtering through Handling of Stabilizing Water Quality, strainer 9 again and delivers to technique interchanger 3.The moisturizing municipal network water supply supply of described soft water make-up system, by moisturizing pipeline directly to circulating water pool 1 moisturizing, filling pipe caliber DN100, filling pipe is provided with successively trip valve 8, blower pump for pipeline 7, water softener 6, remote control float valve 5, under normal circumstances by remote control float valve 5 according to the moisturizing of circulating water pool 1 liquid automatic control.
Moisturizing municipal network water supply supply in the utility model, by moisturizing pipeline directly to circulating water pool moisturizing, filling pipe caliber DN100, filling pipe is provided with trip valve, blower pump for pipeline, water softener, remote control float valve successively, under normal circumstances by remote control float valve according to the moisturizing of circulating water pool liquid automatic control.By arranging a set of (20T/h) water softening device, make moisturizing determining total hardness of water be down to about 640mg/l, calcium hardness is down to about 510mg/L, and basicity reduces to about 360mg/L, meets circulating water quality index request.The utility model reduces plant produced water consumption, and ensures plant circulation water system, the normal smooth running of each technique interchanger.After increasing soft water replenishment system, the every daily water consumption of recirculated water 500 tons/day can meet water-quality guideline.Water saving every day 200 tons, according to the calculation of price of local water of productive use 2.1 yuan/ton, can save 13.86 ten thousand yuan every year.
Claims (5)
1. a LNG production unit circulating cooling make-up water softening installation, it is characterized in that: comprise circulating water pool (1), water circulating pump (2), technique interchanger (3) and pressure cooling tower (4), described circulating water pool (1), water circulating pump (2), technique interchanger (3) is connected by pipeline successively with pressure cooling tower (4), also comprise and be connected soft water replenishment system with municipal network water supply, described soft water replenishment system comprises the remote control float valve (5) be connected with described circulating water pool (1) successively by pipeline, water softener (6), blower pump for pipeline (7) and trip valve (8).
2. a kind of LNG production unit circulating cooling make-up water softening installation according to claim 1, is characterized in that: described blower pump for pipeline (7) has two, is connected in parallel.
3. a kind of LNG production unit circulating cooling make-up water softening installation according to claim 1, is characterized in that: described water circulating pump (2) has three, is connected in parallel.
4. a kind of LNG production unit circulating cooling make-up water softening installation according to claim 1, is characterized in that: between described circulating water pool (1) and water circulating pump (2), be provided with strainer (9).
5. a kind of LNG production unit circulating cooling make-up water softening installation according to claim 1, is characterized in that: in described circulating water pool (1), be provided with water quality on-line monitoring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987568.7U CN205222830U (en) | 2015-12-03 | 2015-12-03 | Alternate cycle water moisturizing softening installation is established in LNG production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987568.7U CN205222830U (en) | 2015-12-03 | 2015-12-03 | Alternate cycle water moisturizing softening installation is established in LNG production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205222830U true CN205222830U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520987568.7U Expired - Fee Related CN205222830U (en) | 2015-12-03 | 2015-12-03 | Alternate cycle water moisturizing softening installation is established in LNG production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205222830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006841A (en) * | 2016-06-22 | 2016-10-12 | 国家电网公司 | Automatic deionized water supply device for cooling system of SFC (static frequency converter) |
| CN111140300A (en) * | 2019-12-31 | 2020-05-12 | 华油天然气广元有限公司 | Energy recovery method for liquefied natural gas |
-
2015
- 2015-12-03 CN CN201520987568.7U patent/CN205222830U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006841A (en) * | 2016-06-22 | 2016-10-12 | 国家电网公司 | Automatic deionized water supply device for cooling system of SFC (static frequency converter) |
| CN106006841B (en) * | 2016-06-22 | 2019-06-14 | 国家电网公司 | A kind of SFC cooling system deionized water automatically supplying apparatus |
| CN111140300A (en) * | 2019-12-31 | 2020-05-12 | 华油天然气广元有限公司 | Energy recovery method for liquefied natural gas |
| CN111140300B (en) * | 2019-12-31 | 2022-07-26 | 华油天然气广元有限公司 | Energy recovery method for liquefied natural gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20191203 |