CN211120122U - Oil field combined station waste heat utilization process system with stabilizing tower - Google Patents

Oil field combined station waste heat utilization process system with stabilizing tower Download PDF

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Publication number
CN211120122U
CN211120122U CN201922327940.2U CN201922327940U CN211120122U CN 211120122 U CN211120122 U CN 211120122U CN 201922327940 U CN201922327940 U CN 201922327940U CN 211120122 U CN211120122 U CN 211120122U
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heat
heat exchanger
pump
communicated
oil
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CN201922327940.2U
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Inventor
李景营
刘树亮
朱铁军
刘子勇
宋鑫
高冠一
周迎春
刘崇江
宋昊
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New Energy Development Center Of Shengli Petroleum Administration Co Ltd Of Sinopec Group
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New Energy Development Center Of Shengli Petroleum Administration Co Ltd Of Sinopec Group
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Abstract

The utility model discloses an oil field united station waste heat utilization process system with a stabilizing tower, which comprises a first heat exchanger, a first circulating pump, a heat pump, a second circulating pump, a second heat exchanger, a dewatering tank, an outward conveying pump, a third heat exchanger and a stabilizing tower; the utility model discloses utilize the waste heat in the first heat exchanger absorption sewage to further extract this part waste heat through the heat pump, the heat after the extraction is used for heating the high concentration crude oil that separates through three separators, and the crude oil after the heating carries out intensification separation gas component after entering the stabilizer, and the waste heat of the high temperature crude oil that flows out at last in the stabilizer is used for heating the crude oil of stabilizer entry end, thereby makes the utility model discloses in the waste heat that each link produced can maximize the rational utilization; the crude oil is heated by reasonably utilizing the waste heat, so that the consumption of heating fuel used by a combined station with a stabilizing tower is greatly reduced, the emission of carbon is reduced, and finally, the production with high efficiency, low loss, energy conservation and environmental protection can be realized.

Description

Oil field combined station waste heat utilization process system with stabilizing tower
Technical Field
The utility model relates to a technical field is equipped to the oil, concretely relates to oil field combined station waste heat utilization process systems with stabilizer.
Background
The oil-gas-water three-phase separator is one of the most common devices in the oil field development and production process, oil-containing sewage, combustible gas and high-concentration crude oil liquid are separated from the liquid by utilizing the three separators, the crude oil liquid is heated to a set temperature by a heating furnace and then enters a dehydration tank for high-temperature dehydration, and the crude oil liquid with the water content reaching the standard is pumped for output after being heated to separate gas components by a stabilizing tower at a high temperature;
the heating energy consumption for heating the crude oil liquid in the whole process is too high, so that the cost of heating fuel is increased, and carbon emission in the heating process is large, so that certain pollution is caused to the environment.
Disclosure of Invention
The utility model aims at providing an oil field joint station waste heat utilization process systems with stabilizer to the defect that prior art exists, its is rational in infrastructure, through the waste heat that utilizes the joint station to crude oil heating, reduces the consumption of heating fuel and reduces carbon and discharges.
The technical scheme of the utility model is that: a waste heat utilization process system with a stabilizing tower for an oil field combined station comprises a first heat exchanger, a first circulating pump, a heat pump, a second circulating pump, a second heat exchanger, a dehydration tank, an outward delivery pump, a third heat exchanger and the stabilizing tower;
a heat source inlet of the first heat exchanger is communicated with a sewage water supply pipe, a heat source outlet of the first heat exchanger is communicated with a sewage water return pipe, a cold source outlet of the first heat exchanger is communicated with a low-temperature water inlet of the heat pump, a low-temperature water outlet of the heat pump is communicated with the cold source inlet of the first heat exchanger through a first circulating pump, a high-temperature water outlet of the heat pump is communicated with a heat source inlet of the second heat exchanger, and a heat source outlet of the second heat exchanger is communicated with the high-temperature water inlet of the heat pump through a second circulating pump;
the cold source inlet of the second heat exchanger is communicated with the crude oil input pipeline, the cold source outlet of the second heat exchanger is communicated with the oil inlet of the dewatering tank, the sewage outlet of the dewatering tank is connected with a drain pipe, the oil outlet of the dewatering tank is communicated with the cold source inlet of the third heat exchanger through an external transfer pump, the cold source outlet of the third heat exchanger is communicated with the inlet of the stabilizing tower, the outlet of the stabilizing tower is communicated with the heat source inlet of the third heat exchanger, and the heat source outlet of the third heat exchanger is communicated with the crude oil output pipeline.
Preferably, the drain pipe connected to the sewage outlet of the dewatering tank is communicated with the sewage supply pipe through a tee joint.
Preferably, a temperature display instrument is installed on the inlet of the dewatering tank.
Preferably, a temperature display instrument is installed on the inlet of the stabilizing tower.
Preferably, the heat pump is a gas heat pump or an electrically driven heat pump.
Preferably, the first heat exchanger, the second heat exchanger and the third heat exchanger are all spiral plate type heat exchangers or plate type heat exchangers.
Compared with the prior art, the utility model, have following advantage: the utility model discloses utilize the waste heat in the first heat exchanger absorption sewage to further extract this part waste heat through the heat pump, the heat after the extraction is used for heating the high concentration crude oil through three separator separations, and crude oil after the heating gets into the stabilizer and carries out the separation gas component of intensification, and the waste heat of the high temperature crude oil that flows out at last in the stabilizer is used for heating the crude oil of stabilizer entry end, thereby makes the utility model discloses in the reasonable utilization that the waste heat that each link produced can maximize;
the consumption of heating fuel used by the combined station with the stabilizing tower is greatly reduced by reasonably utilizing waste heat, the carbon emission is reduced, and finally, the production with high efficiency, low loss, energy conservation and environmental protection can be realized.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention;
in the figure: 1. the system comprises a first heat exchanger, a first circulating pump, a heat pump, a second circulating pump, a second heat exchanger, a dewatering tank, a second heat exchanger, a dewatering pump, a first heat exchanger, a second heat exchanger, a dewatering tank, a second heat exchanger, a third heat exchanger, a stabilizing tower and a second heat exchanger, wherein the first heat exchanger is 2, the first circulating pump is 3, the.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1, the oil field combined station waste heat utilization process system with the stabilizer comprises a first heat exchanger 1, a first circulating pump 2, a heat pump 3, a second circulating pump 4, a second heat exchanger 5, a dehydration tank 6, an external transfer pump 7, a third heat exchanger 8 and a stabilizer 9.
A heat source inlet of the first heat exchanger 1 is communicated with a sewage water supply pipe, and a heat source outlet of the first heat exchanger 1 is communicated with a sewage water return pipe.
Establish the circulation flow path through the pipeline between first heat exchanger 1 and the heat pump 3 to pour into the clear water into in the circulation flow path, specifically be cold source export of first heat exchanger 1 and the low temperature entry intercommunication of heat pump 3, the low temperature water export of heat pump 3 and the entry intercommunication of first circulating pump 2, the export of first circulating pump 2 and the cold source entry intercommunication of first heat exchanger 1.
A circulating flow channel is established between the heat pump 3 and the second heat exchanger 5 through a pipeline, clear water is injected into the circulating flow channel, specifically, a high-temperature water outlet of the heat pump 3 is communicated with a heat source inlet of the second heat exchanger 5, a heat source outlet of the second heat exchanger 5 is communicated with an inlet of the second circulating pump 4, and an outlet of the second circulating pump 4 is communicated with the high-temperature water inlet of the heat pump 3.
The cold source entry and the crude oil input pipeline intercommunication of second heat exchanger 5, the cold source export of second heat exchanger 5 and the fluid entry intercommunication of dewatering tank 6, the sewage export that still is equipped with on the dewatering tank 6 is connected with the drain pipe on the sewage export, and the play water end of drain pipe is through tee junction to the sewage delivery pipe on, through receiving the sewage delivery pipe with this part sewage that dewatering tank 6 produced, can be to the waste heat rational utilization in this part sewage.
An oil outlet of the dehydration tank 6 is communicated with an inlet of an external pump 7, an outlet of the external pump 7 is communicated with a cold source inlet of a third heat exchanger 8, a cold source outlet of the third heat exchanger 8 is communicated with an inlet of a stabilizing tower 9, an outlet of the stabilizing tower 9 is communicated with a heat source inlet of the third heat exchanger 8, and a heat source outlet of the third heat exchanger 8 is communicated with a crude oil output pipeline.
The communication mode among the above-mentioned all equipment is the mode of connecting through the pipeline and communicates.
As a further optimization way of this embodiment, a temperature display instrument may be installed on the inlet of the dehydration tank 6 for detecting the temperature of the crude oil heated by the second heat exchanger 5, and a temperature display instrument may be installed on the inlet of the stabilizer 9 for detecting the temperature of the crude oil entering the stabilizer 9.
Meanwhile, the heat pump 3 in the embodiment is preferably a gas heat pump 3 or an electrically driven heat pump 3, and the first heat exchanger 1, the second heat exchanger 5 and the third heat exchanger 8 are preferably spiral plate type heat exchangers or plate type heat exchangers, so as to improve the heat exchange efficiency.
The working process is as follows:
first, the first heat exchanger 1 extracts heat from the sewage to heat the circulating water between the first heat exchanger 1 and the heat pump 3.
Next, the heat pump 3 extracts heat from the circulating water between the first heat exchanger 1 and the heat pump 3 to generate high-temperature circulating water between the heat pump 3 and the second heat exchanger 5.
Next, the high-temperature circulating water generated between the heat pump 3 and the second heat exchanger 5 passes through the second heat exchanger 5 to heat the crude oil separated by the three separators.
And next, the crude oil heated at high temperature enters a dehydration tank 6 for precipitation and dehydration, and after reaching the standard, the dehydrated crude oil enters a stabilizing tower 9 through an outward conveying pump 7 and a third heat exchanger 8 for temperature rise.
Next, the crude oil is heated in the stabilizer 9 by the fuel gas, and after the temperature is raised to the temperature required by the process, the crude oil is separated into gas components in the stabilizer 9.
And finally, the crude oil flows out of the stabilization tower 9 and is communicated with a crude oil output pipeline through a third heat exchanger 8, and the high-temperature crude oil flowing out of the stabilization tower 9 is used as a heat source to exchange heat and raise the temperature of the crude oil entering the stabilization tower 9.
The utility model discloses utilize first heat exchanger 1 to absorb the waste heat in the sewage to further extract this part waste heat through heat pump 3, the heat after extracting is used for heating the high concentration crude oil through three separator separations, and crude oil after the heating gets into after stabilizer 9 and carries out intensification separation gas component, and the waste heat of the high temperature crude oil that flows out at stabilizer 9 at last is used for heating the crude oil of stabilizer 9 entry end, thereby makes the utility model discloses the rational utilization that the waste heat that each link produced can maximize in the well utilization;
the consumption of heating fuel used by the combined station with the stabilizing tower 9 is greatly reduced by reasonably utilizing waste heat, the carbon emission is reduced, and finally, the production with high efficiency, low loss, energy conservation and environmental protection can be realized.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides an oil field united station waste heat utilization process systems with stabilizer which characterized in that: the system comprises a first heat exchanger, a first circulating pump, a heat pump, a second circulating pump, a second heat exchanger, a dehydration tank, an outward conveying pump, a third heat exchanger and a stabilizing tower;
a heat source inlet of the first heat exchanger is communicated with a sewage water supply pipe, a heat source outlet of the first heat exchanger is communicated with a sewage water return pipe, a cold source outlet of the first heat exchanger is communicated with a low-temperature water inlet of the heat pump, a low-temperature water outlet of the heat pump is communicated with the cold source inlet of the first heat exchanger through a first circulating pump, a high-temperature water outlet of the heat pump is communicated with a heat source inlet of the second heat exchanger, and a heat source outlet of the second heat exchanger is communicated with the high-temperature water inlet of the heat pump through a second circulating pump;
the cold source inlet of the second heat exchanger is communicated with the crude oil input pipeline, the cold source outlet of the second heat exchanger is communicated with the oil inlet of the dewatering tank, the sewage outlet of the dewatering tank is connected with a drain pipe, the oil outlet of the dewatering tank is communicated with the cold source inlet of the third heat exchanger through an external transfer pump, the cold source outlet of the third heat exchanger is communicated with the inlet of the stabilizing tower, the outlet of the stabilizing tower is communicated with the heat source inlet of the third heat exchanger, and the heat source outlet of the third heat exchanger is communicated with the crude oil output pipeline.
2. The oil field united station waste heat utilization process system with the stabilizing tower as claimed in claim 1, wherein: and the drain pipe connected to the sewage outlet of the dewatering tank is communicated with a sewage supply pipe through a tee joint.
3. The oil field united station waste heat utilization process system with the stabilizing tower as claimed in claim 1, wherein: and a temperature display instrument is arranged on the inlet of the dehydration tank.
4. The oil field united station waste heat utilization process system with the stabilizing tower as claimed in claim 1, wherein: and a temperature display instrument is arranged on the inlet of the stabilizing tower.
5. The oil field united station waste heat utilization process system with the stabilizing tower as claimed in claim 1, wherein: the heat pump is a gas heat pump or an electrically driven heat pump.
6. The oil field united station waste heat utilization process system with the stabilizing tower as claimed in claim 1, wherein: the first heat exchanger, the second heat exchanger and the third heat exchanger are all spiral plate type heat exchangers or plate type heat exchangers.
CN201922327940.2U 2019-12-23 2019-12-23 Oil field combined station waste heat utilization process system with stabilizing tower Active CN211120122U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922327940.2U CN211120122U (en) 2019-12-23 2019-12-23 Oil field combined station waste heat utilization process system with stabilizing tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922327940.2U CN211120122U (en) 2019-12-23 2019-12-23 Oil field combined station waste heat utilization process system with stabilizing tower

Publications (1)

Publication Number Publication Date
CN211120122U true CN211120122U (en) 2020-07-28

Family

ID=71695885

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922327940.2U Active CN211120122U (en) 2019-12-23 2019-12-23 Oil field combined station waste heat utilization process system with stabilizing tower

Country Status (1)

Country Link
CN (1) CN211120122U (en)

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