CN203161488U - Mass flow liquefied natural gas delivering reciprocating pump - Google Patents
Mass flow liquefied natural gas delivering reciprocating pump Download PDFInfo
- Publication number
- CN203161488U CN203161488U CN 201320167982 CN201320167982U CN203161488U CN 203161488 U CN203161488 U CN 203161488U CN 201320167982 CN201320167982 CN 201320167982 CN 201320167982 U CN201320167982 U CN 201320167982U CN 203161488 U CN203161488 U CN 203161488U
- Authority
- CN
- China
- Prior art keywords
- pump
- natural gas
- liquefied natural
- motor
- reciprocating 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a mass flow liquefied natural gas delivering reciprocating pump which comprises a plurality of pump heads, an oil cooling system, a water heating system and a base, wherein the pump heads are arranged in parallel on the upper surface of the base and form five columns of high-speed pump units; the upper end and the lower end of the outer side of each pump head are respectively connected with a liquid inlet pipeline and a liquid outlet pipeline; each pump is connected with a motor through a transmission case, wherenin the water heating system is mounted between the motor and the five columns of high-speed pump units, and the oil cooling system is mounted at the outer part of the motor. The mass flow liquefied natural gas delivering reciprocating pump provided by the utility model has the benefits that the problems of high costs of product manufacture, installation and maintenace in a liquid diving type centrifugal pump can be solved; the outlet pressure of the reciprocating pump units is real time line pressure during the process that the line pressure does not reach the working pressure, less energy is required for deliverying the media, so that energy loss is reduced effectively; both the motor and the transmission part are not in contact with the delivering medium and heat produced is emitted in the air, so that cold energy loss is eliminated and the vaporization of the medium is avoided.
Description
Technical field
The utility model relates to for big flows of industry needs such as chemical industry, industrial and mining enterprise, national defence scientific researches and forces down warm medium transport equipment, relate in particular to a kind of for city gas peak regulation station to the big flow of urban pipe network, pressure, do not have to leak and carry the big flow LNG Liquefied natural gas of occasion to carry reciprocating pump.
Background technique
Rock gas is the inflammable gas of exploiting out naturally in the gas field, LNG Liquefied natural gas is to be cooled to-162 ℃ by natural gas in gaseous state under normal pressure, make it to condense into liquid, can save storage and transportation space greatly after the natural gas liquefaction, and have characteristics such as calorific value is big, performance height, be a kind of cleaning, the energy efficiently.Thereby rock gas is more and more favored as clean energy resource, and a lot of countries all classify LNG Liquefied natural gas as preferred fuels, and the ratio of rock gas in energy supply increases sharply, and becomes the whole world and increases one of the swiftest and the most violent energy industry.For guaranteeing the energy supply diversification and improve energy consumption structure that some energy-consuming big countries more and more pay attention to the introduction of LNG Liquefied natural gas, will become the oil popular energy commodity of next whole world contention afterwards.At present, adopt the latent liquid type centrifugal pump structure more and be imported product with big flow volume delivery pump at city gas peak regulation station, the manufacture cycle is long, and production, installation, maintenance cost are higher relatively; Do not reach in the working pressure process in loine pressure, the centrifugal pump outlet pressure is the design pressure (rated pressure) of pump, approximately greater than the pipeline maximum working pressure, is depressurized to loine pressure by outlet valve or pipe-line system, but unit moves under rated power, and loss is bigger; Simultaneously, power of motor is bigger, mostly is 132KW, and the heat that produces during operation absorbs by medium, causes a large amount of liquefied natural gas vaporizations, causes the loss of medium cold energy.For the reciprocating pump product, present low temperature reciprocating pump series products flow is all less, generally is in below the 30m3/h, does not reach the requirement of 72.5m3/h.Therefore, at above aspect, need reasonably improve prior art.
Summary of the invention
At above defective, the big flow LNG Liquefied natural gas that the utility model provides a kind of can effectively reduce medium vaporization, stop to produce the cold energy loss, reduce maintenance cost, can effectively reduce energy loss is carried reciprocating pump, to solve many deficiencies of prior art.
For achieving the above object, the utility model is by the following technical solutions:
A kind of big flow LNG Liquefied natural gas is carried reciprocating pump, comprise some pump heads, oil cooling system, water heating system, base, described base upper surface is set up in parallel some pump heads and forms five row high speed pump groups, and the upper/lower terminal in each pump head outside connects feed liquor pipeline, fluid pipeline respectively;
Each pump head is connected with motor by transmission case, between motor wherein and the five row high speed pump groups water heating system is installed, and is positioned at the outside oil cooling system of installing of motor, is positioned at liquid flowing valve, fluid valve are set respectively on feed liquor pipeline and the fluid pipeline.
Correspondingly, keeping parallelism between per two pump heads, described pump head quantity is set to 5; Being positioned at each pump head upper surface joins by a pipe fitting and horizontally disposed return line respectively; Described fluid pipeline upper end is connected to damper.
Big flow LNG Liquefied natural gas described in the utility model carries the beneficial effect of reciprocating pump to be:
⑴ can solve problems such as latent liquid type centrifugal pump production, installation, maintenance cost height, and the cost of its unit is lower, and installation and maintenance is more convenient; Do not reach in the working pressure process in loine pressure, the outlet pressure of reciprocating pump unit is real-time loine pressure, and the required energy of fed sheet of a media is less, can reduce energy loss effectively;
⑵ motor does not all contact with fed sheet of a media with drive part, and the heat of generation all is dispersed in the air, can stop to produce the cold energy loss substantially, avoid the medium vaporization;
⑶ applied range can be mainly used in city gas peak regulation station and leak the occasion of carrying to the big flow of urban pipe network, middle pressure, nothing.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation that the described big flow LNG Liquefied natural gas of the utility model embodiment is carried reciprocating pump.
Among the figure:
1, pump head; 2, transmission case; 3, motor; 4, oil cooling system; 5, water heating system; 6, return line; 7, feed liquor pipeline; 8, fluid pipeline; 9, damper; 10, base.
Embodiment
As shown in Figure 1, the described big flow LNG Liquefied natural gas of the utility model embodiment is carried reciprocating pump, comprise some pump heads 1, oil cooling system 4, water heating system 5, base 10, described base 10 upper surfaces are set up in parallel keeping parallelism between the pump head 1 of some transverse distribution and per two pump heads 1, this pump head 1 quantity is set to 5 and form five row high speed pump groups, the upper/lower terminal in each pump head 1 outside connects feed liquor pipeline 7, fluid pipeline 8 respectively, is positioned at each pump head 1 upper surface and joins by a pipe fitting and horizontally disposed return line 6 respectively; Each pump head 1 inboard is in transmission connection by transmission case 2 and motor 3, water heating system 5 is installed between motor 3 wherein and the five row high speed pump groups, be positioned at the motor 3 outside oil cooling systems 4 of installing, simultaneously, described fluid pipeline 8 upper ends are connected to damper 9, are positioned at feed liquor pipeline 7 and with fluid pipeline 8 liquid flowing valve, fluid valve are set respectively.During work, after pump head 1 and feed liquor pipeline 7, the 8 abundant precoolings of fluid pipeline, start oil cooling system 4, water heating system 5 during startup earlier, reciprocating pump reruns, to lubrication oil circulation cooling cooling in the transmission case 2, water heating system 5 passes through water pump, water tank, coil pipe to the heating of sealing position to oil cooling system 4 by oil pump, fuel tank, cooler; By to-and-fro motion, the unlatching of liquid in-out valve, the closure of piston rod, thereby liquid is transported to pressure duct from the low pressure storage tank, when export pipeline pressure reaches standard, sends signal by pressure transducer, reciprocating pump quits work automatically.
The described big flow LNG Liquefied natural gas of above the utility model embodiment is carried reciprocating pump, big flow LNG natural gas transport reciprocating pump can save energy, can effectively reduce the vaporization of medium, adopt five row cylinder diameter 105mm, stroke 90mm, rotating speed 390r/min at a high speed, split type reciprocating pump substitutes the latent liquid type centrifugal pump and carries big flow (72.5m
3/ h) LNG Liquefied natural gas.
Above embodiment is more preferably embodiment a kind of of the utility model, and the common variation that those skilled in the art carry out in the technical program scope and replacing should be included in the protection domain of the present utility model.
Claims (5)
1. one kind big flow LNG Liquefied natural gas is carried reciprocating pump, comprises some pump heads (1), oil cooling system (4), water heating system (5), base (10), it is characterized in that:
Described base (10) upper surface is set up in parallel some pump heads (1) and forms five row high speed pump groups, and the upper/lower terminal in each pump head (1) outside connects feed liquor pipeline (7), fluid pipeline (8) respectively;
Each pump head (1) is connected with motor (3) by transmission case (2), between motor wherein (3) and the five row high speed pump groups water heating system (5) is installed, be positioned at the outside oil cooling system (4) of installing of motor (3), be positioned on feed liquor pipeline (7) and the fluid pipeline (8) liquid flowing valve, fluid valve are set respectively.
2. big flow LNG Liquefied natural gas according to claim 1 is carried reciprocating pump, it is characterized in that: keeping parallelism between per two pump heads (1).
3. big flow LNG Liquefied natural gas according to claim 1 is carried reciprocating pump, and it is characterized in that: described pump head (1) quantity is set to 5.
4. carry reciprocating pump according to each described big flow LNG Liquefied natural gas of claim 1-3, it is characterized in that: be positioned at each pump head (1) upper surface and join by a pipe fitting and horizontally disposed return line (6) respectively.
5. big flow LNG Liquefied natural gas according to claim 1 is carried reciprocating pump, it is characterized in that: described fluid pipeline (8) upper end is connected to damper (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167982 CN203161488U (en) | 2013-04-07 | 2013-04-07 | Mass flow liquefied natural gas delivering reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167982 CN203161488U (en) | 2013-04-07 | 2013-04-07 | Mass flow liquefied natural gas delivering reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161488U true CN203161488U (en) | 2013-08-28 |
Family
ID=49022677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320167982 Expired - Lifetime CN203161488U (en) | 2013-04-07 | 2013-04-07 | Mass flow liquefied natural gas delivering reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372717A (en) * | 2018-10-19 | 2019-02-22 | 湖州三井低温设备有限公司 | A kind of liquid hydrogen conveying reciprocating pump |
-
2013
- 2013-04-07 CN CN 201320167982 patent/CN203161488U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372717A (en) * | 2018-10-19 | 2019-02-22 | 湖州三井低温设备有限公司 | A kind of liquid hydrogen conveying reciprocating pump |
| CN109372717B (en) * | 2018-10-19 | 2024-02-09 | 湖州三井低温设备有限公司 | Liquid hydrogen conveying reciprocating pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201443873U (en) | Heating device for heat transfer oil carrier furnace | |
| CN104154416B (en) | A kind of ice-reserving method and device of utilizing cold energy of liquefied natural gas with atmospheric tower | |
| CN102817655A (en) | Comprehensive energy source management system for peak shifting power supplying and method thereof | |
| CN105863762B (en) | A kind of process system to be generated electricity using cold energy of liquefied natural gas and method | |
| CN203161488U (en) | Mass flow liquefied natural gas delivering reciprocating pump | |
| CN204284926U (en) | A kind of LNG cascade regas system being applied to offshore floating type LNG regasification plant | |
| CN103673591B (en) | Evaporated cooling system of heat accumulating type rod and wire stepping furnace | |
| CN104806879A (en) | BOG recovery system for LNG (Liquefied Natural Gas) gas station | |
| CN204716420U (en) | Case sled formula natural gas generator group device | |
| CN201496770U (en) | Heat exchanging system for industrial gas production | |
| CN204240642U (en) | Aluminum fabrication plant air compressor unit heat circulating system | |
| CN204085234U (en) | A kind of durable and efficient cooling tower | |
| CN202485329U (en) | Methane liquefaction device for scattered air source points | |
| CN203547813U (en) | Power generation device using liquefied natural gas cold energy and solar energy as power sources | |
| CN202148961U (en) | Single circulation waterway heat recovery system | |
| CN205332862U (en) | Economizer of liquid ethylene gasification heat utilization | |
| CN208006327U (en) | A kind of hydraulic press cooling device | |
| CN201731266U (en) | Device for gasifying liquid by circulating water | |
| CN103615660A (en) | Water bath vaporizer using waste heat energy of engine | |
| CN203657457U (en) | Vaporization cooling system of heat storage type rod and wire step furnace | |
| CN207555202U (en) | A kind of LNG cold energy recycles vaporizer | |
| CN203783712U (en) | Cooling water system of diesel generator set | |
| CN202157878U (en) | Liquid nitrogen evaporation system utilizing hydraulic brake | |
| CN202246488U (en) | Liquid ammonia and carbon dioxide heat exchange device | |
| CN202133299U (en) | Multi-cold-source circulating water cooling tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |