CN203175787U - Heat-recovery liquid nitrogen pump skid for extremely cold regions - Google Patents
Heat-recovery liquid nitrogen pump skid for extremely cold regions Download PDFInfo
- Publication number
- CN203175787U CN203175787U CN 201320164925 CN201320164925U CN203175787U CN 203175787 U CN203175787 U CN 203175787U CN 201320164925 CN201320164925 CN 201320164925 CN 201320164925 U CN201320164925 U CN 201320164925U CN 203175787 U CN203175787 U CN 203175787U
- Authority
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- Prior art keywords
- liquid nitrogen
- sledge
- pump
- heat
- nitrogen pump
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 91
- 239000007788 liquid Substances 0.000 title claims abstract description 86
- 238000011084 recovery Methods 0.000 title claims abstract description 9
- 239000002826 coolant Substances 0.000 claims description 19
- 239000002912 waste gas Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 230000008016 vaporization Effects 0.000 claims description 7
- 238000009834 vaporization Methods 0.000 claims description 7
- 239000000295 fuel oil Substances 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 10
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to a heat-recovery liquid nitrogen pump skid for extremely cold regions. The liquid nitrogen pump skid comprises an engine, a nitrogen gas discharge high-pressure manifold system, a control chamber, a liquid nitrogen plunger pump, a liquid nitrogen evaporator, a liquid nitrogen suction low-pressure manifold system, a liquid nitrogen supercharge pump, a cooling liquid pump and a cooling liquid tank, wherein the engine and the nitrogen gas discharge high-pressure manifold system are located at the head of a bottom skid; the control chamber is located at the tail of the bottom skid; the liquid nitrogen plunger pump and the liquid nitrogen evaporator are located at the left side of the bottom skid; and the liquid nitrogen suction low-pressure manifold system, the liquid nitrogen supercharge pump, the cooling liquid pump and the cooling liquid tank are located at the right side of the bottom skid. The heat-recovery liquid nitrogen pump skid for the extremely cold regions has the beneficial effects that the structure of the liquid nitrogen pump skid is subjected to function-zoned arrangement according to loads, and a control chamber door is far away from high-pressure pipelines, so that the convenience and safety in operation are improved.
Description
Technical field
The utility model relates to the heat reclamation type liquid nitrogen pump sledge that use in a kind of extremely cold area, belongs to oil field liquid nitrogen construction operation apparatus field.
Background technique
Along with to the raising of oil field, gas-field exploitation technology with to the increase of oil demand, the oil field liquid nitrogen plant is being brought into play more and more important effect in fields such as oil field prospecting formation testing, oil formation improvement, safe pressure testing, viscous crude operation, nitrogen injection drilling and nitrogen foam pressure breaks.To guaranteeing oilfield stimulation, stable yields aspect, the oil field liquid nitrogen plant plays good effect.But present existing oil field liquid nitrogen plant load layout is unreasonable, and safety in utilization and operation convenience are not high; And thermal losses is serious, utilization ratio is low; Moreover under some particular surroundingss (as extremely cold area), equipment is difficult to operation.
Summary of the invention
The utility model provides a kind of heat reclamation type liquid nitrogen pump sledge of extremely cold area use at above-mentioned the deficiencies in the prior art.This liquid nitrogen pump sledge equipment operation convenience and safe, and can in extremely cold environment, (about 40 ℃) the low-temp low-pressure liquid nitrogen be converted to the output of normal temperature high voltage nitrogen.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: the heat reclamation type liquid nitrogen pump sledge that use in a kind of extremely cold area, described liquid nitrogen pump sledge comprises the motor that is positioned at end sledge head, and described liquid nitrogen pump sledge also comprises the nitrogen discharge high pressure pipe joint system that is positioned at end sledge head; Be positioned at the control room of end sledge afterbody; Be positioned at liquid nitrogen plunger pump, the liquid nitrogen vaporization device in sledge left side, the end; And the liquid nitrogen that is positioned at sledge right side, the end sucks low-pressure manifold system, liquid nitrogen suction booster, coolant pump, tank for coolant.
The beneficial effects of the utility model are: this liquid nitrogen pump sledge structure has been carried out the function division layout according to load, and the control room door has improved operation convenience and Security away from pressure duct.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described liquid nitrogen pump sledge also comprises the heat-exchange system that is positioned at sledge left side, the end, and described heat-exchange system comprises the exhaust gas utilization system;
Described exhaust gas utilization system comprises the exhaust-heat exchanger that described engine exhaust is carried out secondary recovery, can cut off the waste gas shut-off valve that waste-gas heat reclaims, and baffler.
Adopt the beneficial effect of above-mentioned further scheme to be, by the exhaust gas utilization system, make and engine exhaust heat secondary recovery reduce the loss of heat in the low temperature environment, improve heat recovery efficiency and be used for liquid nitrogen vaporization; Can realize manual control by this cover exhaust gas utilization system, more the reasonable use engine exhaust.
Further, the thermostat that also comprises of described heat exchanger system.
Adopt the beneficial effect of above-mentioned further scheme to be, further control the hot gas exchange capacity by thermostat.
Further, described liquid nitrogen pump sledge also comprises the heating system that is positioned at sledge right side, the end.
Adopt the beneficial effect of above-mentioned further scheme to be, so as when ambient temperature to be lower starting device.
Further, the heater in the described heating system carries independent low temperature fuel oil bottle.
Adopt the beneficial effect of above-mentioned further scheme to be, heater carries independent fuel oil bottle and holds the low temperature fuel oil, forms independent loop by burning heating and driving engine body cooling liquid.
Further, described liquid nitrogen pump sledge also comprises the control room warm air system in parallel with described fuel heating system.
Adopt the beneficial effect of above-mentioned further scheme to be, the control room warm air system can guarantee staff's proper functioning under low temperature environment.
Further, described liquid nitrogen pump sledge also comprises fender bracket.
Adopt the beneficial effect of above-mentioned further scheme to be, the parts on the protection sledge are avoided the external force collision, and design simultaneously has hoisting structure to be convenient to reorganize and outfit movement, and detachable design is the component maintenance that makes things convenient for equipment.
Description of drawings
Fig. 1 is rear view of the present utility model;
Fig. 2 is front view of the present utility model.
In Fig. 1 and Fig. 2,1. exhaust-heat exchanger, 2. baffler, 3. the waste gas shut-off valve, 4. thermostat, 5. nitrogen discharge the high pressure pipe joint system, 6. motor, 7. the liquid nitrogen vaporization device, 8. the liquid nitrogen plunger pump, 9. the control room, 10. liquid nitrogen sucks low-pressure manifold system, 11. liquid nitrogen suction boosters, 12. heating systems, 13. coolant pumps, 14. tank for coolants, 15. end sledges, 16. fender brackets.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not for limiting scope of the present utility model.
As depicted in figs. 1 and 2, the heat reclamation type liquid nitrogen pump sledge that use in a kind of extremely cold area, described liquid nitrogen pump sledge comprises the motor 6 that is positioned at end sledge 15 heads, described liquid nitrogen pump sledge also comprises the nitrogen discharge high pressure pipe joint system 5 that is positioned at end sledge 15 heads; Be positioned at the control room 9 of end sledge 15 afterbodys; Be positioned at liquid nitrogen plunger pump 8, the liquid nitrogen vaporization device 7 in end sledge 15 left sides; And the liquid nitrogen that is positioned at end sledge 15 right sides sucks low-pressure manifold system 10, liquid nitrogen suction booster 11, coolant pump 13, tank for coolant 14.
Described liquid nitrogen pump sledge also comprises the heat-exchange system that is positioned at end sledge 15 left sides, and described heat-exchange system comprises liquid nitrogen pump lubricant oil heat exchanger, hydraulic oil heat-exchangers, engine cooling liquid heat exchanger, and described heat-exchange system also comprises the exhaust gas utilization system;
Described exhaust gas utilization system comprises the exhaust-heat exchanger 1 that described motor 6 waste gas is carried out secondary recovery, can cut off the waste gas shut-off valve 3 that waste-gas heat reclaims, and baffler 2.
Described heat exchanger system also comprises thermostat 4.
High temperature coolant is pumped from tank for coolant 14 by coolant pump 13, the liquid nitrogen vaporization of flowing through earlier device 7, coolant temperature descends and becomes cryogenic liquid after this moment and the liquid nitrogen heat exchange, cryogenic liquid reclaims heat through liquid nitrogen pump lubricant oil heat exchanger, hydraulic oil heat-exchangers, engine cooling liquid heat exchanger and exhaust-heat exchanger 1 and becomes high temperature coolant, high temperature coolant is got back to tank for coolant 14, and then pumped by coolant pump 13, constitute the liquid circulation loop.When the liquid nitrogen discharge capacity was hanged down, the temperature of cooling liquid raise, and thermostat 4 will automatic disconnection portion of hot exchanger, and cooling liquid is directly returned tank for coolant 14 without this heat exchanger; When coolant temperature is hanged down, absorb heat by exhaust-heat exchanger 1; When coolant temperature is high, can remote operation waste gas shut-off valve 3, cut off the recovery of waste-gas heat, and motor 6 waste gas directly are discharged in the atmosphere by baffler 2.
Described liquid nitrogen pump sledge also comprises the heating system 12 that is positioned at end sledge 15 right sides, is used for cooling liquid, engine motor oil, engine fuel, hydraulic oil container, fuel tank, the lubricating oil tank of heated engine 6, the heat exchanger of battery box.
The heater that described heating system is 12 li carries independent low temperature fuel oil bottle.
Described liquid nitrogen pump sledge also comprises the control room warm air system in parallel with described heating system 12, by ball valve control flow and warm braw temperature.
Described liquid nitrogen pump sledge also comprises fender bracket 16.
Working principle: provide liquid nitrogen by external liquid nitrogen container, liquid nitrogen enters the liquid nitrogen pump sledge by the import that liquid nitrogen sucks low-pressure manifold 10, finally enters the suction port of liquid nitrogen plunger pump 8 by a series of Subzero valve control liquid nitrogen.After 8 runnings of liquid nitrogen plunger pump, the low pressure liquid nitrogen is become high-pressure liquid nitrogen through the plunger pump supercharging, high-pressure liquid nitrogen becomes normal temperature high voltage nitrogen after liquid nitrogen vaporization device 7 absorbs heat, discharges system 5 through high pressure pipe joint then and discharges.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. heat reclamation type liquid nitrogen pump sledge that use in extremely cold area, described liquid nitrogen pump sledge comprises the motor (6) that is positioned at end sledge (15) head, it is characterized in that described liquid nitrogen pump sledge also comprises the nitrogen discharge high pressure pipe joint system (5) that is positioned at end sledge (15) head; Be positioned at the control room (9) of end sledge (15) afterbody; Be positioned at liquid nitrogen plunger pump (8), the liquid nitrogen vaporization device (7) in end sledge (15) left side; And the liquid nitrogen that is positioned at end sledge (15) right side sucks low-pressure manifold system (10), liquid nitrogen suction booster (11), coolant pump (13), tank for coolant (14).
2. the heat reclamation type liquid nitrogen pump sledge of a kind of extremely cold area use according to claim 1 is characterized in that, described liquid nitrogen pump sledge also comprises the heat-exchange system that is positioned at end sledge (15) left side, and described heat-exchange system comprises the exhaust gas utilization system;
Described exhaust gas utilization system comprises the exhaust-heat exchanger (1) that described motor (6) waste gas is carried out secondary recovery, can cut off the waste gas shut-off valve (3) that waste-gas heat reclaims, and baffler (2).
3. the heat reclamation type liquid nitrogen pump sledge of a kind of extremely cold area use according to claim 2 is characterized in that described heat-exchange system also comprises thermostat (4).
4. the heat reclamation type liquid nitrogen pump sledge that uses according to each described a kind of extremely cold area of claim 1-3 is characterized in that described liquid nitrogen pump sledge also comprises the heating system (12) that is positioned at end sledge (15) right side.
5. the heat reclamation type liquid nitrogen pump sledge of a kind of extremely cold area use according to claim 4 is characterized in that the heater of described heating system (12) lining carries independent low temperature fuel oil bottle.
6. the heat reclamation type liquid nitrogen pump sledge of a kind of extremely cold area use according to claim 4 is characterized in that described liquid nitrogen pump sledge also comprises the control room warm air system in parallel with described heating system (12).
7. according to claim 1, it is characterized in that described liquid nitrogen pump sledge also comprises fender bracket (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164925 CN203175787U (en) | 2013-04-07 | 2013-04-07 | Heat-recovery liquid nitrogen pump skid for extremely cold regions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164925 CN203175787U (en) | 2013-04-07 | 2013-04-07 | Heat-recovery liquid nitrogen pump skid for extremely cold regions |
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| Publication Number | Publication Date |
|---|---|
| CN203175787U true CN203175787U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320164925 Expired - Fee Related CN203175787U (en) | 2013-04-07 | 2013-04-07 | Heat-recovery liquid nitrogen pump skid for extremely cold regions |
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