CN104747908A - Online drawable immersed pump system for deep-cooling storage tank - Google Patents

Online drawable immersed pump system for deep-cooling storage tank Download PDF

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Publication number
CN104747908A
CN104747908A CN201510175610.XA CN201510175610A CN104747908A CN 104747908 A CN104747908 A CN 104747908A CN 201510175610 A CN201510175610 A CN 201510175610A CN 104747908 A CN104747908 A CN 104747908A
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CN
China
Prior art keywords
pump
storage tank
sump
cryogenic storage
immersed pump
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.)
Pending
Application number
CN201510175610.XA
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Chinese (zh)
Inventor
王耀武
杜利霞
李晓鹏
臧小舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Tian Hai Cryogenic Ltd
Combustion Gas Designing Institute Of Shaanxi Province
Special Equipment Technology Co Ltd Of Auspicious Section In Shaanxi
Original Assignee
Beijing Tian Hai Cryogenic Ltd
Combustion Gas Designing Institute Of Shaanxi Province
Special Equipment Technology Co Ltd Of Auspicious Section In Shaanxi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Tian Hai Cryogenic Ltd, Combustion Gas Designing Institute Of Shaanxi Province, Special Equipment Technology Co Ltd Of Auspicious Section In Shaanxi filed Critical Beijing Tian Hai Cryogenic Ltd
Priority to CN201510175610.XA priority Critical patent/CN104747908A/en
Publication of CN104747908A publication Critical patent/CN104747908A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an online drawable immersed pump system for a deep-cooling storage tank. An immersed pump system is connected with the deep-cooling storage tank in an integration manner, the immersed pump system comprises a pump sump, an immersed pump arranged in the pump sump and a hoisting system which is electrically connected with the immersed pump, wherein the lower segment part of the pump sump is positioned in the deep-cooling storage tank, the bottom of the lower segment part is provided with a pump sump bottom valve which is connected with the immersed pump, and the upper segment part of the pump sump stretches out of the deep-cooling storage tank and is connected with the deep-cooling storage tank; a liquid outlet is formed in the upper segment part of the pump sump, and a top cover of the pump sump is arranged on the top end of the upper segment part of the pump sump. The immersed pump system is connected with the deep-cooling storage tank in an integration manner, the deep-cooling liquid medium conveying technological process is simple, less valves are needed, and a process pipe is simple, so that leakage accident points are lowered, the installing difficulty and floor space of equipment are reduced, and the whole equipment is more flexible to install; the online drawable immersed pump system is especially applicable to the installation demands of the equipment which is less in space area, and also applicable to overground installation, installation on board and buried installation.

Description

The online drawing out type immersed pump system of a kind of cryogenic storage tank
Technical field
The invention belongs to cryogenic liquid to store and conveying technology field, be specifically related to the online drawing out type immersed pump system of a kind of cryogenic storage tank.
Background technique
At present, for small-sized cryogenic liquid as rock gas, liquid oxygen, liquid nitrogen, the storage of liquid argon and liquid carbon dioxide etc. and conveying, general employing cryogenic storage tank stores, carry in the mode of the outer external cryopump of cryogenic storage tank or external immersed pump again, adopt the mounting type of this external cryopump or external immersed pump, and cryogenic storage tank and cryopump or when installing with immersed pump, need the safety requirement considering relevant device, under the condition ensureing Security, cause technological process complicated thus, for realizing technological process and meeting safe requirement, need to adopt multiple valve as, storage tank root valve, Piping Safety Valves, safety check and Emergeny Cutoff Valves etc. realize the conveying of cryogenic liquid with good pipe insulation.As low in temperature according to the physical property of cryogenic liquid medium, easily gasify, this installation method can exist that leakage accident point is many, pipeline is complicated, difficulty of construction is large, installation cost is high and the shortcoming such as area is large.
Therefore, be necessary to provide a kind of new cryogenic storage tank online drawing out type immersed pump system, to solve the problems of the technologies described above.
Summary of the invention
For Problems existing in background technique, the object of the invention is to provide the online drawing out type immersed pump system of a kind of cryogenic storage tank, and make the delivery technology flow process of cryogenic liquid simple, Security is high, saves space and reduces costs.
Technological scheme of the present invention is achieved in that the immersed pump system intergration is connected in cryogenic storage tank, immersed pump system comprises pump sump, be located at immersed pump in pump sump and with the elevator system of immersed pump by being electrically connected, wherein, the hypomere part of pump sump is positioned at cryogenic storage tank, and the bottom of hypomere part is provided with pump sump bottom valve is connected with immersed pump, the upper portion of pump sump is stretched out outside cryogenic storage tank and is connected with cryogenic storage tank, and upper portion is provided with liquid outlet, pump sump top cover is located at the top of pump sump upper portion.
As preferably, described immersed pump system and described cryogenic storage tank pass through Flange joint.
As preferably, the special cable that described electrical connection have employed deep cooling medium special connects.
As preferably, the sealing of described elevator system have employed multi-stage sealed form, guarantees the safety reliability of immersed pump pump sump sealing when promoting.
As preferably, described pump sump bottom valve is opened by the deadweight of immersed pump and described pump sump is communicated with described cryogenic storage tank.
As preferably, pump sump fixed system is set in the short transverse of described pump sump and prevents rocking of pump sump.
As preferably, between the bottom of described cryogenic storage tank and described pump sump, filtration system is set.
As preferably, pump sump top cover have employed the thermal insulation that thermal insulating material carries out top cover, reduces the cold draining of pump sump top cover.
As preferably, described the outer of pump sump system is arranged with heat insulation layer.
The present invention is compared with prior art: the present invention is by being connected in cryogenic storage tank by immersed pump integrated installation, compare with the installation of external immersed pump, the delivery technology flow process of cryogenic liquid medium is simple, required valve is few, process pipe is simple, decrease leakage accident point, reduce equipment installation difficulty and floor space, whole equipment is installed more flexible, be particularly useful for the equipment installation requirements that spatial area is less.Both be applicable to ground installation, ship are installed, be also applicable to buried installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of cryogenic storage tank of the present invention by online drawing out type immersed pump system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the online drawing out type immersed pump system of a kind of cryogenic storage tank of the present invention, the described immersed pump system intergration is connected in cryogenic storage tank 9, and immersed pump system comprises pump sump 1, is located at the immersed pump 2 in described pump sump 1.
The hypomere part of described pump sump 1 is positioned at cryogenic storage tank 9, and the bottom of hypomere part is provided with pump sump bottom valve 3 is connected with described immersed pump 2, and described pump sump bottom valve 3 is opened by the deadweight of immersed pump and described pump sump 1 is communicated with described cryogenic storage tank 9.It is outer and be connected with cryogenic storage tank intersection that the upper portion of described pump sump 1 stretches out described cryogenic storage tank 9, and this connection preferably can be selected to be connected by flange 11.And upper portion is provided with liquid outlet 12, can flow out for the liquid in described cryogenic storage tank 9.The top end cover of pump sump upper portion is provided with a pump sump top cover 7, and described pump sump top cover 7 have employed the thermal insulation that thermal insulating material carries out pump sump top cover, reduces the cold draining of pump sump top cover 7, thus avoids the liquid gasification in cryogenic storage tank 9.
Be provided with in described pump sump 1 and the elevator system 4 of described immersed pump 2 by electrical connection 8, the special cable that described electrical connection 8 have employed deep cooling medium special connects, firm with the sealing configuration in the external world, and described elevator system 4 is provided with sealing, described sealing have employed multi-stage sealed form, prevent cryogenic liquid in lifting process from leaking, thus guarantee immersed pump 2 safety reliability that pump sump 1 seals when promoting.
The short transverse that described immersed pump system is included in described pump sump 1 further arranges pump sump fixed system 5 to prevent rocking of pump sump 1, ensures security of system.Between the bottom of described cryogenic storage tank 9 and described pump sump 1, filtration system is set, thus prevents the bottom sediment in cryogenic storage tank 1 from entering pump sump 1, and then enter in described immersed pump 2, cause described immersed pump 2 to damage, affect the normal work of whole immersed pump system.The outer of described pump sump 1 system is arranged with the cold draining that heat insulation layer 10 reduces pump sump system, reduces liquid gasification speed.
The online drawing out type immersed pump system of cryogenic storage tank provided by the invention, by the deadweight of above-mentioned immersed pump 2, the runner of described pump sump bottom valve 3 is opened, described pump sump 1 is communicated with described cryogenic storage tank 9, and then by described immersed pump 2, cryogenic liquid is transferred out cryogenic storage tank 9 from described liquid outlet 12, in like manner, promoting described immersed pump 2 by described elevator system 4 makes described immersed pump 2 depart from described pump sump bottom valve 3, after losing the Gravitative Loads of immersed pump 2, described pump sump bottom valve 3 will cut out runner, reach described pump sump 1 and isolate with described cryogenic storage tank 9.
As mentioned above, pump sump 1 is connected by described connection large flange 11 with described cryogenic storage tank 9 and seals, when described pump sump bottom valve 3 needs to safeguard, described connection large flange fastening piece is removed, whole pump sump system can be proposed together with pump sump bottom valve 3 maintenance that cryogenic storage tank 9 carries out described pump sump bottom valve 3 by described elevator system 4.
As mentioned above, by described pump sump top cover 7, described immersed pump 2, described cryogenic storage tank 9 are isolated with external environment condition, sealed, when described immersed pump 2 needs to safeguard or keep in repair, described pump sump top cover 7 is connected with described pump sump 1 and removes with fastening piece, described immersed pump 2 can be proposed carry out safeguarding or keeping in repair outside described pump sump 1 by described elevator system 4.
Cryogenic storage tank of the present invention by online drawing out type immersed pump system by latent liquid 2 pump integrated installation is connected in cryogenic storage tank 9, compare with the installation of external immersed pump, the delivery technology flow process of cryogenic liquid liquid is simple, required valve is few, process pipe is simple, decrease leakage accident point, reduce equipment installation difficulty and floor space, whole equipment is installed more flexible, be particularly useful for the equipment installation requirements that spatial area is less.Both be applicable to ground installation, ship are installed, be also applicable to buried installation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. the online drawing out type immersed pump system of cryogenic storage tank, it is characterized in that: the immersed pump system intergration is connected in cryogenic storage tank, immersed pump system comprises pump sump, be located at immersed pump in pump sump and with the elevator system of immersed pump by being electrically connected, wherein, the hypomere part of pump sump is positioned at cryogenic storage tank, and the bottom of hypomere part is provided with pump sump bottom valve is connected with immersed pump, the upper portion of pump sump is stretched out outside cryogenic storage tank and is connected with cryogenic storage tank, and upper portion is provided with liquid outlet, pump sump top cover is located at the top of pump sump upper portion.
2. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: described immersed pump system and described cryogenic storage tank pass through Flange joint.
3. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: the special cable that described electrical connection have employed deep cooling medium special connects.
4. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: the sealing of described elevator system have employed multi-stage sealed form.
5. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: described pump sump bottom valve is opened by the deadweight of immersed pump and described pump sump is communicated with described cryogenic storage tank.
6. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: arrange pump sump fixed system in the short transverse of described pump sump and prevent rocking of pump sump.
7. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: arrange filtration system between the bottom of described cryogenic storage tank and described pump sump.
8. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: pump sump top cover have employed the thermal insulation that thermal insulating material carries out top cover.
9. the online drawing out type immersed pump system of cryogenic storage tank according to claim 1, is characterized in that: described the outer of pump sump system is arranged with heat insulation layer.
CN201510175610.XA 2015-04-14 2015-04-14 Online drawable immersed pump system for deep-cooling storage tank Pending CN104747908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510175610.XA CN104747908A (en) 2015-04-14 2015-04-14 Online drawable immersed pump system for deep-cooling storage tank

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Application Number Priority Date Filing Date Title
CN201510175610.XA CN104747908A (en) 2015-04-14 2015-04-14 Online drawable immersed pump system for deep-cooling storage tank

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CN104747908A true CN104747908A (en) 2015-07-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042328A (en) * 2015-08-26 2015-11-11 成都华气厚普机电设备股份有限公司 Built-in bottom-valve-free LNG pump well structure
CN105465377A (en) * 2015-12-31 2016-04-06 成都华气厚普机电设备股份有限公司 Detachable LNG storage tank shaft bottom valve
CN105485513A (en) * 2015-12-31 2016-04-13 成都华气厚普机电设备股份有限公司 Built-in pump LNG (liquefied natural gas) storage tank
CN105864629A (en) * 2016-04-25 2016-08-17 新兴能源装备股份有限公司 Pump tank integrated cryogenic tank

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231100A (en) * 1984-05-01 1985-11-16 Tokyo Gas Co Ltd Leakage preventing method of liquefied natural gas (lng) at its discharge time
WO2008115218A2 (en) * 2006-12-28 2008-09-25 Kellogg Brown & Root Llc Methods and apparatus for pumping liquified gases
CN203431477U (en) * 2013-06-13 2014-02-12 张家港中集圣达因低温装备有限公司 Horizontal type double-layer underground storage tank
CN203641573U (en) * 2013-12-04 2014-06-11 大连深蓝泵业有限公司 Plane sealing suction bottom valve matched with low temperature immersed pump
CN203717378U (en) * 2013-12-02 2014-07-16 大连深蓝泵业有限公司 Vertical low-temperature in-tank immersed pump
CN203743819U (en) * 2014-01-13 2014-07-30 查特深冷工程系统(常州)有限公司 Underground storage tank for LNG (Liquefied Natural Gas) filling station
CN104235595A (en) * 2013-06-13 2014-12-24 张家港中集圣达因低温装备有限公司 Horizontal double-layer buried storage tank
CN204629083U (en) * 2015-04-14 2015-09-09 陕西瑞科特种设备技术有限公司 The online drawing out type immersed pump system of a kind of cryogenic storage tank

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231100A (en) * 1984-05-01 1985-11-16 Tokyo Gas Co Ltd Leakage preventing method of liquefied natural gas (lng) at its discharge time
WO2008115218A2 (en) * 2006-12-28 2008-09-25 Kellogg Brown & Root Llc Methods and apparatus for pumping liquified gases
CN203431477U (en) * 2013-06-13 2014-02-12 张家港中集圣达因低温装备有限公司 Horizontal type double-layer underground storage tank
CN104235595A (en) * 2013-06-13 2014-12-24 张家港中集圣达因低温装备有限公司 Horizontal double-layer buried storage tank
CN203717378U (en) * 2013-12-02 2014-07-16 大连深蓝泵业有限公司 Vertical low-temperature in-tank immersed pump
CN203641573U (en) * 2013-12-04 2014-06-11 大连深蓝泵业有限公司 Plane sealing suction bottom valve matched with low temperature immersed pump
CN203743819U (en) * 2014-01-13 2014-07-30 查特深冷工程系统(常州)有限公司 Underground storage tank for LNG (Liquefied Natural Gas) filling station
CN204629083U (en) * 2015-04-14 2015-09-09 陕西瑞科特种设备技术有限公司 The online drawing out type immersed pump system of a kind of cryogenic storage tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042328A (en) * 2015-08-26 2015-11-11 成都华气厚普机电设备股份有限公司 Built-in bottom-valve-free LNG pump well structure
CN105465377A (en) * 2015-12-31 2016-04-06 成都华气厚普机电设备股份有限公司 Detachable LNG storage tank shaft bottom valve
CN105485513A (en) * 2015-12-31 2016-04-13 成都华气厚普机电设备股份有限公司 Built-in pump LNG (liquefied natural gas) storage tank
CN105864629A (en) * 2016-04-25 2016-08-17 新兴能源装备股份有限公司 Pump tank integrated cryogenic tank

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Application publication date: 20150701