CN201844201U - A crude oil gathering pipeline heating system - Google Patents

Abstract

The embodiment of the utility model provides a crude oil gathering and transportation pipeline heating system. The system includes: a temperature sensor group, a flow sensor, a circulation pump group, a heat storage tank, a valve group, a solar collector array, a heat exchanger, a microwave Heat exchange system, monitoring operation cabinet, wherein: the solar heat collector array heats the water in the heat storage tank under the control of the circulating pump group and the valve group, sends it to the heat exchanger, and exchanges it with the crude oil in the pipeline. heat, preheating; the preheated crude oil enters the microwave heat exchange system, and the microwave heat exchange system converts electric energy into microwave energy to perform secondary heat exchange on the crude oil in the pipeline. The monitoring operation cabinet is used to collect temperature sensor Group and flow sensor signals to adjust solar and microwave heating methods and heating power to automatically control temperature. The utility model adopts two heating methods of solar energy and microwave, and automatically controls the temperature to realize the purpose of reducing the production and operation cost of crude oil and safe collection and transportation.

Description

A crude oil gathering pipeline heating system

technical field

The utility model relates to the technical field of crude oil pipeline gathering and transportation, in particular to a crude oil gathering and transportation pipeline heating system.

Background technique

Crude oil ground gathering and transportation process is an important link in oilfield production. Crude oil is generally heavy oil. Due to its high viscosity and high freezing point, it needs to be heated for gathering and transportation (the gathering and transportation temperature of the medium in some areas is as high as 100°C). The energy used for ground gathering and transportation accounts for 1/10 of the extracted energy. The conventional heating methods are wellhead gas heating furnace or electric heating, etc. These conventional heating methods have a heat transfer process from the outside to the inside of the crude oil, and the crude oil has a heating speed due to the poor thermal conductivity of the crude oil. Slow, low heating efficiency, poor viscosity reduction effect of crude oil and other shortcomings, a great waste of energy.

In view of the above situation, Chinese patent ZL 01220393.9 discloses a magnetic viscosity reducer for oil pipelines. The technical solution is to use the magnetic viscosity reduction technology to realize the viscosity reduction and drag reduction of crude oil in the pipeline. The technical solution is simple in structure and easy to implement. The amount of added chemicals or the amount of heating gas can be reduced, but the magnetic components of this technical solution are prone to demagnetization under high-temperature gathering and transportation conditions, and lose the viscosity-reducing effect. Chinese patent CN 1654879 discloses a solar energy indirect heating transport crude oil system. This technical solution uses solar energy to replace conventional energy to heat and transport crude oil to save a lot of energy consumption, reduce environmental pollution, and purify the environment. However, due to the influence of northern climate conditions, independent solar energy It is difficult for the heating system to meet the heating temperature or heat load of crude oil medium in some areas. Chinese patent announcement number ZL 2846985 discloses a microwave heating crude oil device, the technical solution is a process of converting microwave energy into thermal energy, and is a heating device that can automatically control the temperature. Microwave heating medium is a method of body heating, which can quickly transfer heat to crude oil medium. Microwave heating of crude oil has the advantages of fast heating speed and high heating efficiency, but microwave heating device alone is used to realize the heating of crude oil. The space for saving energy and reducing consumption is very limited.

Utility model content

The embodiment of the utility model provides a crude oil gathering and transportation pipeline heating system, which uses solar energy and microwave heating methods to automatically control the temperature to achieve the purpose of reducing crude oil production and operation costs and safe gathering and transportation.

On the one hand, the embodiment of the utility model provides a crude oil gathering and transportation pipeline heating system, the system includes: a temperature sensor group, a flow sensor, a circulating pump group, a heat storage tank, a valve group, a solar collector array, a Heater, microwave heat exchange system, monitoring operation cabinet, among which:

Under the control of the circulating pump group and the valve group, the solar heat collector array heats the water in the heat storage tank and sends it to the heat exchanger to exchange heat with the crude oil in the pipeline for preheating; Crude oil enters the microwave heat exchange system, which converts electrical energy into microwave energy and performs secondary heat exchange on the crude oil in the pipeline. The monitoring operation cabinet is used to collect the signals of the temperature sensor group and the flow sensor to adjust the solar energy , Microwave heating mode and heating power to automatically control temperature.

Optionally, in an embodiment of the present invention, the microwave heat exchange system includes: a microwave heating cavity, a microwave waveguide, and a microwave generator.

Optionally, in an embodiment of the present utility model, the temperature sensor group is a platinum resistance sensor.

Optionally, in one embodiment of the present utility model, the circulation pump set is a centrifugal pump.

Optionally, in one embodiment of the present invention, the solar collector array is installed on a movable stand, and the angle of the movable stand is controlled by monitoring the operation cabinet to adjust the solar heating The angle of the collector array to control the collector area.

Optionally, in an embodiment of the present utility model, the heat exchanger and the microwave heat exchange system are sequentially installed on the crude oil gathering and transportation pipeline according to the flow direction of the crude oil.

Optionally, in an embodiment of the present utility model, the temperature sensors are installed at both ends of the microwave heat exchange system for monitoring the heating effect of the microwave heat exchange system.

Optionally, in an embodiment of the present utility model, the temperature sensor and the flow sensor are installed between the hot water storage tank and the heat exchanger, and are used to monitor the temperature of the hot water in the solar heating mode. heating temperature and flow rate.

The above-mentioned technical solution has the following beneficial effects: the purpose of reducing crude oil production and operation costs and safe gathering and transportation is realized by adopting two heating methods, solar energy and microwave, and automatic temperature control.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a crude oil gathering and transportation pipeline heating system according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The purpose of this utility model is: to provide a solar-microwave heating system for crude oil gathering and transportation pipelines, through online real-time monitoring of the heating effect of the medium in the pipeline and switching the heating mode of the system, automatic temperature control, to reduce the cost of crude oil production and operation , the purpose of safe collection and transmission.

As shown in Figure 1, it is a schematic structural diagram of a crude oil gathering and transportation pipeline heating system according to an embodiment of the present invention. Water tank 4, valve group 5, solar collector array 7, heat exchanger 8, microwave heat exchange system 15, monitoring operation cabinet 14, in which:

The solar heat collector array 7 heats the water in the hot water storage tank 4 under the control of the circulation pumps 3, 6 and the valve group 5, and then sends it to the heat exchanger 8 to exchange heat with the crude oil in the pipeline to carry out Preheating: the preheated crude oil enters the microwave heat exchange system 15, and the microwave heat exchange system 15 converts electric energy into microwave energy to perform secondary heat exchange on the crude oil in the pipeline. The monitoring operation cabinet 14 is used to collect temperature sensor Signals from groups 1, 9, 12 and flow sensor 2 are used to adjust solar energy and microwave heating methods and heating power for automatic temperature control.

Optionally, the microwave heat exchange system 15 includes: a microwave heating chamber 10 , a microwave waveguide 11 , and a microwave generator 13 .

Optionally, the temperature sensor groups 1, 9, 12 are platinum resistance sensors.

Optionally, the circulating pump sets 3 and 6 are centrifugal pumps.

Optionally, the solar collector array 7 is installed on a movable stand, and the angle of the solar collector array 7 is adjusted by monitoring the operation cabinet 14 to control the angle of the movable stand, so as to control the collector thermal area.

Optionally, the heat exchanger 8 and the microwave heat exchange system 15 are sequentially installed on the crude oil gathering and transportation pipeline according to the flow direction of the crude oil.

Optionally, the temperature sensors 9 and 12 are installed at both ends of the microwave heat exchange system 15 for monitoring the heating effect of the microwave heat exchange system 15 .

Optionally, the temperature sensor 1 and the flow sensor 2 are installed between the hot water storage tank 4 and the heat exchanger 8 for monitoring the heating temperature and flow of hot water in the solar heating mode.

When working, use the monitoring operation cabinet 14 to monitor the working status of each system to ensure that each system is in a safe operating state, the water storage tank 4 is filled with water, and the monitoring operation cabinet 14 is used to adjust the movable support under the solar collector array 7 to adjust The angle of the solar heat collector array 7 makes it reach the maximum heating area. The hot water circulation of the solar heating system is realized through the circulating pumps 3 and 6. The temperature sensor 1 is used to monitor the temperature of the hot water in the heat exchanger 8. The crude oil is imported first. The heat is exchanged through the heat exchanger 8, and then enters the microwave heat exchange system 15. The microwave generator 13 converts electric energy into microwave energy and transmits it to the microwave heating cavity 10 through the microwave waveguide 11 , and the crude oil is transported after completing heat exchange in the microwave heating cavity 10 . The temperature sensors 9 and 12 are used to monitor the heating effect of the microwave heat exchange system 15, and by monitoring the operation cabinet 14 to adjust the heat exchange mode or the microwave power mode, the temperature is automatically controlled to meet the safe and economical transportation requirements of crude oil.

The temperature sensor groups in the above embodiments of the utility model are all platinum resistance sensors, which are used to monitor the temperature of the hot water and crude oil medium during the heating process. The circulating pumps are all centrifugal pumps, which are used to realize the function of solar hot water circulation. The solar collector array is installed on the movable stand, and the monitoring operation cabinet is used to control the angle of the stand to adjust the angle of the solar heater array to achieve the maximum heat collection area. The hot water heated by solar energy enters the heat exchanger and exchanges heat with the medium in the pipeline to complete the purpose of preheating. The preheated crude oil enters the microwave heat exchange system. The whole microwave heat exchange system can be composed of microwave generator, directional coupler, filter, impedance adjuster, microwave waveguide and microwave heating cavity. After converted into microwave energy, it is sent to the microwave heating chamber to perform secondary heat exchange on the medium in the pipeline. The well-prepared control program is installed in the monitoring operation cabinet, and the temperature, flow, and other signals are collected and processed, and the temperature feedback signal is used to adjust the heating mode and power of solar energy and microwave, and automatically control the temperature, so as to achieve safe and economical collection and transportation. the goal of.

The utility model organically combines solar energy technology and microwave technology, aiming at the characteristics of oilfield crude oil collection and transportation, utilizes renewable resources (solar energy) to realize crude oil collection and transportation production, and utilizes the characteristics of high efficiency and fast heating of crude oil by microwave, through online real-time Monitoring the heating temperature of the medium in the pipeline and switching the heating mode of the system can better solve the problems of low efficiency and high energy consumption of the gas heating furnace, and greatly reduce the production and operation cost of crude oil. This system can replace the heating of the gas heating furnace method has broad application prospects.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (8)

1. crude oil gathering pipelines heating system, it is characterized in that described system comprises: sets of temperature sensors (1), (9), (12), flow transducer (2), recycle pump group (3), (6), hot water storage tank (4), valve sets (5), solar thermal collector array (7), heat exchanger (8), microwave heat-exchange system (15), monitoring operation cabinet (14), wherein:

Crude oil carries out heat exchange to described solar thermal collector array (7) in heat exchanger (8) back and the pipeline with being sent to after the heating of the water in the hot water storage tank (4) under the control of recycle pump group (3), (6) and valve sets (5), carries out preheating; Crude oil after the preheating enters microwave heat-exchange system (15), described microwave heat-exchange system (15) carries out secondary heat exchange to crude oil in the pipeline after converting electrical energy into microwave energy, described monitoring operation cabinet (14) is used for the signal of collecting temperature sensor groups (1), (9), (12) and flow transducer (2), to adjust the mode of heating and the heating power of solar energy, microwave, with temperature automatically controlled.

2. crude oil transmission heating system according to claim 1 is characterized in that described microwave heat-exchange system (15) comprising: microwave heating chamber (10), microwave plumbing (11), microwave oscillator (13).

3. crude oil transmission heating system according to claim 1 is characterized in that described sets of temperature sensors (1), (9), (12) are platinum sensor.

4. crude oil transmission heating system according to claim 1 is characterized in that described recycle pump group (3), (6) are centrifugal pump.

5. crude oil transmission heating system according to claim 1, it is characterized in that, described solar thermal collector array (7) is installed on mobilizable foot rest, operate cabinet (14) by monitoring and control the angle that the angle of described mobilizable foot rest is adjusted solar heater array (7), with the control heat-collecting area.

6. crude oil transmission heating system according to claim 1 is characterized in that, described heat exchanger (8) is installed on the crude oil gathering pipelines in turn with the flow direction of described microwave heat-exchange system (15) based on crude.

7. crude oil transmission heating system according to claim 1 is characterized in that described temperature transducer (9), (12) are installed in the two ends of described microwave heat-exchange system (15), is used to monitor the heats of described microwave heat-exchange system (15).

8. crude oil transmission heating system according to claim 1, it is characterized in that, described temperature transducer (1) and described flow transducer (2) are installed between described hot water storage tank (4) and the described heat exchanger (8), are used for monitoring the heating-up temperature and the flow of solar energy heating mode hot water.

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