CN201748463U - U-shaped pipe-type natural gas gasifier - Google Patents
U-shaped pipe-type natural gas gasifier Download PDFInfo
- Publication number
- CN201748463U CN201748463U CN2010203017764U CN201020301776U CN201748463U CN 201748463 U CN201748463 U CN 201748463U CN 2010203017764 U CN2010203017764 U CN 2010203017764U CN 201020301776 U CN201020301776 U CN 201020301776U CN 201748463 U CN201748463 U CN 201748463U
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- natural gas
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Abstract
The utility model provides a U-shaped pipe-type natural gas gasifier. A horizontal shell, a shell flange, a pipe plate, a pipe box flange and a pipe box are sequentially connected with one by one. The pipe box is divided into two spaces by a clapboard; the left lower end of the pipe box is provided with a liquid-state natural gas inlet; the upper end of the pipe box is provided with a gas-state natural gas outlet; the shell is internally provided with a plurality of baffle plates; the shell is internally provided with a U-shaped heat exchanging pipe which is communicated with an upper space and a lower space of the pipe box; the lower end of the shell is provided with a circulated water inlet, a circulated water sewage outlet and a circulated water outlet; and the upper end of the shell is provided with a non-condensed gas exhaust outlet. The gasifier has the advantages that the U-shaped pipe structure capable of stretching and retracting freely is not affected by the hot expansion and cold shrinkage of the medium with large temperature difference. The horizontal structure is provided with a form that the liquid enters from the lower part and the gas exits from the upper part, thus being beneficial for air flow and avoiding air resistance. The shell is provided with the baffle plates which can guide the circulated water and the flow speed of the circulated water can be improved; the mediums at two sides can form the cross flow so as to exchange the heat; the heat exchanging efficiency can be improved greatly, the heat exchanging area can be reduced; and the U-shaped pipe-type natural gas gasifier has the advantages of simple structure, compact arrangement and low cost.
Description
Technical field
The utility model belongs to the low-temperature pressure container shell-and-tube heat exchanger of the part device of petrochemical equipment, particularly a kind of U type tubular type natural gas gasifying device.
Background technology
Natural gas is extensive use of as a kind of clean energy resource, but most of area is far away apart from air feed point, and pipeline gas reaches very much, natural gas can be carried out cooling fluid by gas-liquid volume ratio at 625: 1 in the source of the gas place of production and change into liquified natural gas
NG, utilize low-temperature tanker to be transported to and use the gas point, utilize gasifier to gasify and reduce pressure to add and enter rear tracheae net after smelly, be applicable to industry and civilian users, the liquified natural gas gasifier is generally air temperature type form gasification, energy savings, but that environment temperature is lower than 0 ℃ of air-heating type gasifier is inoperative, this just needs to adopt the gasifier of forced heat-exchanging, most convenient be to utilize natural gas point water heater to provide circulating hot water as thermal source gasification of liquid natural gas.
Have following difficult point to solve in the design of this equipment: 1. cold and hot medium excessive temperature differentials, nearly 250 ℃, device structure will be considered to expand with heat and contract with cold significantly.2. liquified natural gas acutely gasification in heat exchanger tube from the instantaneous conversion of liquid Spoon sweat pool Ou gaseous state, is considered gas flow during the project organization form, prevent air-resistance phenomenon.3. heat exchanger tube is the multitubular bundles form, and the liquid air inlet attitude of natural gas goes out, and when ductwork pressure was low especially in the wings, liquid inlet formed short circuit phenomenon easily, reduces vaporization ability significantly, need prevent short circuit during design.4. improve recirculated water side heat exchange efficiency as far as possible, reduce heat exchange area, reduce equipment cost.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of U type tubular type natural gas gasifying device that is applicable to applying working condition is provided.
The technical solution of the utility model is:
A kind of U type tubular type natural gas gasifying device is characterized in that: adopt horizontal U type tubular construction, the horizontal type shell left end connects shell flange, and shell flange connects tube sheet, and tube sheet connects channel flange, and channel flange connects bobbin carriage; Have dividing plate that bobbin carriage is divided into two spaces up and down in the middle of in the bobbin carriage, bobbin carriage lower-left end has the liquified natural gas inlet, and there is the gaseous natural gas outlet bobbin carriage upper end; At housing a plurality of deflection plates are arranged, a plurality of deflection plates are divided into space in the housing in the S passage of a plurality of connections; U type heat exchanger tube is arranged in the housing, and U type heat exchanger tube passes a plurality of deflection plates, and U type heat exchanger tube two-port is passed tube sheet respectively and is communicated with at bobbin carriage up and down in two spaces; Housing lower-left end has in recirculated water inlet, the housing lower end have that right-hand member has circulating water outlet in recirculated water sewage draining exit, the housing; There is not condensing gas discharge outlet the housing upper end.
The recirculated water inlet is provided with Pressure gauge, and outlet is provided with thermometer.
Between the adjacent deflection plate distance sink tube is arranged, the pull bar that connects distance sink tube and deflection plate is arranged in the middle of the distance sink tube.
The housing below is provided with the support saddle, and the housing top is provided with hanger.
The utility model structural advantages is:
The U type tubular construction of retractable is not influenced by expanding with heat and contract with cold of the big medium of the temperature difference.Horizontal type structure, the form of giving vent to anger is beneficial to air flow direction on the following feed liquor, avoids vapour lock.The natural gas import is provided with the turbulent baffle device that prevents short circuit.Utilize hydraulic barrier with the warm water water conservancy diversion, improve the recirculated water flow velocity, media of both sides forms the cross-current heat exchange, significantly improves heat exchange efficiency, reduces heat exchange area, reduces equipment cost.Device structure is simple, arranges compactness, and the vaporization ability of natural gas can reach 1000 ~ 100000NM3/h.
Description of drawings
Fig. 1 is the structural representation of U type tubular type natural gas gasifying device
Among the figure:
1 bobbin carriage, 2 turbulent baffles, 3 dividing plates, 4 channel flanges, 5 tube sheets, 6 shell flanges, 7 heat exchanger tubes, 8 deflection plates, 9 housings, 10 hangers, 11 thermometers, 12 support saddle, 13 distance sink tubes, 14 pull bars, 15 Pressure gauges
Mouth of pipe title among the figure
16 liquified natural gas inlet N1,17 gaseous natural gas outlet N2,18 recirculated waters inlet N3,19 circulating water outlet N4,20 natural gas discharging hole N5,21 not condensing gas discharge outlet N6,22 recirculated water sewage draining exit N7
The specific embodiment
A kind of U type tubular type natural gas gasifying device as shown in the figure adopts horizontal U type tubular construction, and equipment shell side medium is a recirculated water, utilizes many group deflection plates to carry out water conservancy diversion, fix by distance sink tube and pull bar between the deflection plate, intake-outlet below, be convenient to the on-the-spot pipe arrangement of user.Equipment tube side medium is a natural gas, and heat exchanger tube is two journey U type tubular constructions, and an end is the bobbin carriage of giving vent to anger on the following feed liquor, and journey is divided with dividing plate in the centre.One end is the U type heat exchanger tube of retractable, and the heat exchanger tube expanded and welded tube joint is on fixed tube sheet, and channel flange and shell flange are firm with the tube sheet clamping.The natural gas import is provided with the turbulent baffle that prevents short circuit.
Contact natural gas position material is 304 stainless steels, guarantees the low temperature resistant applying working condition of material.
The recirculated water sewage draining exit is established in the housing below, and not condensing gas discharge outlet is established in the top, and the natural gas discharging hole is established in tube side bobbin carriage below.
The recirculated water inlet is provided with on-the-spot indicating pressure gauge, and outlet is provided with on-the-spot indicating thermometer.
The pull bar of distance sink tube and deflection plate about the distance sink tube centre is provided with and connects.
The housing below is provided with the support saddle, and the top is provided with hanger.
A kind of U type tubular type natural gas gasifying device, operation principle: liquified natural gas enters heat-exchanging tube bundle from bobbin carriage N1 mouth by turbulent baffle, recirculated water is in recirculated water inlet N3 access arrangement housing, through vertically passing heat-exchanging tube bundle behind the deflection plate water conservancy diversion, and flow out from the N4 mouth, natural gas endothermic gasification and overheated in the tube bank, gas enters the rear pipe network from the output of bobbin carriage N2 mouth.
Structure as shown in Figure 1, U type tubular type natural gas gasifying device mainly supports whole equipment by supporting saddle, housing adopts with the support saddle and is welded to connect, bobbin carriage is welded with pass partition and adpting flange, heat exchanger tube expands earlier and afterwards is welded on the tube sheet, some deflection plates are fixed on the heat exchanger tube by distance sink tube and pull bar, utilize bolt that tube sheet is fastening firmly between channel flange and shell flange, natural gas is imported and exported with recirculated water and all is connected with outside ductwork by form of flanges, each floss hole all is furnished with the screw thread ball valve, and the housing top is provided with hanger.
U type tubular type natural gas gasifying device, this heat exchanger be after the pluses and minuses of having summed up U type heat exchange of heat pipe in conjunction with actual applying working condition, carry out improved a kind of U type tubular construction heat exchanger.Adopt new construction Ao Lida company to design, make and put into operation, and obtained good effect.
Equipment shell side medium is a recirculated water, utilizes many group deflection plates to carry out water conservancy diversion, fix by distance sink tube and pull bar between the deflection plate, intake-outlet below.Equipment tube side medium is a natural gas, and heat exchanger tube is two journey U type tubular constructions, and an end is the bobbin carriage of giving vent to anger on the following feed liquor, and journey is divided with dividing plate in the centre.One end is the U type heat exchanger tube of retractable, and the heat exchanger tube expanded and welded tube joint is on fixed tube sheet, and channel flange and shell flange are firm with the tube sheet clamping.The natural gas import is provided with turbulent baffle.Contact natural gas position material is 304 stainless steels, guarantees the low temperature resistant applying working condition of material.
Claims (4)
1. a U type tubular type natural gas gasifying device is characterized in that: adopt horizontal U type tubular construction, horizontal type shell left end connection shell flange, shell flange connection tube sheet, tube sheet connection channel flange, channel flange connection bobbin carriage; Have dividing plate that bobbin carriage is divided into two spaces up and down in the middle of in the bobbin carriage, bobbin carriage lower-left end has the liquified natural gas inlet, and there is the gaseous natural gas outlet bobbin carriage upper end; A plurality of deflection plates are arranged in housing, and a plurality of deflection plates are divided into space in the housing in the S passage of a plurality of connections; U type heat exchanger tube is arranged in the housing, and U type heat exchanger tube passes a plurality of deflection plates, and U type heat exchanger tube two-port is passed tube sheet respectively and is communicated with at bobbin carriage up and down in two spaces; Housing lower-left end has in recirculated water inlet, the housing lower end have that right-hand member has circulating water outlet in recirculated water sewage draining exit, the housing; There is not condensing gas discharge outlet the housing upper end.
2. U type tubular type natural gas gasifying device according to claim 1 is characterized in that: the recirculated water inlet is provided with Pressure gauge, and outlet is provided with thermometer.
3. U type tubular type natural gas gasifying device according to claim 1 is characterized in that: between the adjacent deflection plate distance sink tube is arranged, the pull bar that connects distance sink tube and deflection plate is arranged in the middle of the distance sink tube.
4. U type tubular type natural gas gasifying device according to claim 1 is characterized in that: the housing below is provided with the support saddle, and the housing top is provided with hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203017764U CN201748463U (en) | 2010-01-28 | 2010-01-28 | U-shaped pipe-type natural gas gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203017764U CN201748463U (en) | 2010-01-28 | 2010-01-28 | U-shaped pipe-type natural gas gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748463U true CN201748463U (en) | 2011-02-16 |
Family
ID=43583138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203017764U Expired - Fee Related CN201748463U (en) | 2010-01-28 | 2010-01-28 | U-shaped pipe-type natural gas gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641704A (en) * | 2017-01-09 | 2017-05-10 | 张家港市华地机械装备有限公司 | Circulating water type cng heater |
| CN106705706A (en) * | 2017-02-16 | 2017-05-24 | 张家港市华地机械装备有限公司 | Natural gas (NG) heater |
-
2010
- 2010-01-28 CN CN2010203017764U patent/CN201748463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641704A (en) * | 2017-01-09 | 2017-05-10 | 张家港市华地机械装备有限公司 | Circulating water type cng heater |
| CN106705706A (en) * | 2017-02-16 | 2017-05-24 | 张家港市华地机械装备有限公司 | Natural gas (NG) heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20140128 |