CN109555509B

CN109555509B - Special nitrogen gas heating device of oil development

Info

Publication number: CN109555509B
Application number: CN201811390906.3A
Authority: CN
Inventors: 王世鹏
Original assignee: Maanshan Jinshunlai Industrial Design Co ltd
Current assignee: Jining High Tech Industrial Park Operation Management Co ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2021-06-15
Anticipated expiration: 2038-11-21
Also published as: CN109555509A

Abstract

The invention discloses a nitrogen heating device special for oil exploitation, which comprises a tank body, wherein one end of the tank body is provided with an air inlet pipe, the other end of the tank body is provided with an exhaust pipe, an inner cavity of the tank body is provided with an air inlet bin, a heating bin and an exhaust bin, the heating bin is arranged between the air inlet bin and the exhaust bin, a first guide plate is arranged between the air inlet bin and the heating bin, a second guide plate is arranged between the heating bin and the exhaust bin, a heating assembly is installed in the heating bin, a first temperature sensor is arranged on the inner wall of the air inlet bin, a second temperature sensor is arranged on the inner wall of the heating bin, a third temperature sensor is arranged on the inner wall of the exhaust bin, and a control box is arranged on the outer wall of the tank body.

Description

Special nitrogen gas heating device of oil development

Technical Field

The invention relates to the technical field of nitrogen heating, in particular to a special nitrogen heating device for oil exploitation.

Background

Nitrogen, which is generally a colorless, odorless gas, is generally non-toxic, and generally has a lower density than air. Nitrogen, which is a main component of air, accounts for 78.12% (volume fraction) of the total amount of the atmosphere. When cooled to-195.8 deg.C under normal atmospheric pressure, the liquid becomes colorless liquid, and when cooled to-209.8 deg.C, the liquid nitrogen becomes snow-like solid. Nitrogen has inactive chemical property, is difficult to react with other substances at normal temperature, but can be chemically changed with certain substances under the conditions of high temperature and high energy, so that the nitrogen is used for preparing new substances which are useful for human beings. Physical characteristics of nitrogen: inert gas, insoluble in water and less soluble in oil; the material is dry, non-flammable, non-explosive, non-toxic, non-corrosive and good in expansibility; the nitrogen is widely available and inexhaustible, is a gas resource widely applied in oil field development, has the purity of not less than 95 percent generally when being applied in the oil field, can be used as a downhole circulating medium, is used for secondary and tertiary oil recovery by using the traditional water-based drilling fluid and oil-based drilling fluid together, and improves the oil recovery efficiency, can be used for oil and gas reservoir protection, profile control oil displacement, heavy oil thermal recovery and nitrogen injection technologies, can be used for drilling platform protection, oil well overhaul, ground oil and gas gathering and transportation engineering, and can also be used for conventional natural gas development and unconventional natural gas development.

The nitrogen gas needs to be heated in the oil exploitation process, and the existing heating device has a single function, cannot accurately control the temperature, so that the heating efficiency is low, and the exploitation efficiency is influenced, so that improvement is needed.

Disclosure of Invention

The invention aims to provide a nitrogen heating device special for oil exploitation, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a special nitrogen gas heating device of oil development, includes a jar body, jar body one end sets up the intake pipe, the jar body other end sets up the blast pipe, internal chamber of jar sets up air inlet bin, heated warehouses and exhaust storehouse, heated warehouses sets up between air inlet bin and the exhaust storehouse, just set up first guide plate between air inlet bin and the heated warehouses, set up the second guide plate between heated warehouses and the exhaust storehouse, installation heating element in the heated warehouses, air inlet bin inner wall sets up first temperature sensor, the heated warehouses inner wall sets up second temperature sensor, the exhaust storehouse inner wall sets up third temperature sensor, set up the control box on the external wall of jar, the terminal surface sets up the display screen before the control box, the inside AT89C51 singlechip that sets up of control box, sensing signal amplification module, first temperature sensor, 51 singlechip are connected respectively to sensing signal amplification module input, The output ends of the second temperature sensor and the third temperature sensor are connected with an AT89C51 singlechip, and the AT89C51 singlechip is connected with a heating component;

the heating assembly comprises an inner pipe and an outer pipe, wherein the two ends of the outer pipe are respectively connected with an air inlet flange and an air outlet flange, the inner pipe is arranged in the outer pipe, a plurality of groove ways for guiding air to pass through are arranged on the pipe wall of the inner pipe, and the outer pipe is provided with an induction heating coil.

Preferably, the sensing signal amplifying module comprises an operational amplifier and a two-stage field effect broadband amplifier, wherein one input end of the operational amplifier is respectively connected with one end of a resistor B and one end of a capacitor B, the other end of the capacitor B is grounded, the other end of the resistor B is respectively connected with one end of a resistor A and one end of a capacitor A, the other end of the capacitor A is connected with the output end of the operational amplifier, the other input end of the operational amplifier is respectively connected with one end of a resistor C and one end of a resistor D, the other end of the resistor C is connected with one end of a capacitor D and grounded, and the other end; the output end of the two-stage field effect broadband amplifier is connected with one end of a capacitor E, the other end of the capacitor E is connected with one end of a resistor F, the other end of the resistor F is connected with the negative input end of the two-stage field effect broadband amplifier, the negative input end of the two-stage field effect broadband amplifier is further connected with a resistor G and is grounded, the positive input end of the two-stage field effect broadband amplifier is connected with one end of the resistor E, the other end of the resistor E is connected with the output end of the operational amplifier, the two-stage field effect broadband amplifier further comprises a capacitor F, a capacitor G and a capacitor H, one end of the capacitor F, one.

Preferably, install first solenoid valve in the intake pipe, install the second solenoid valve in the blast pipe, first solenoid valve and second solenoid valve all connect AT89C51 singlechip.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention has simple structure principle, can realize real-time monitoring of the heating temperature in the tank body, can realize rapid heating of nitrogen, and improves the subsequent oil exploitation efficiency.

(2) The heating assembly adopted by the invention can rapidly heat the nitrogen and raise the temperature to the required temperature, and the heated nitrogen is pollution-free and has high heating efficiency; the air inlet flange, the air outlet flange, the outer pipe and the inner pipe are all made of high-temperature-resistant metal materials, and have good mechanical performance and strength in a high-temperature state, so that the use performance of the air inlet flange, the air outlet flange, the outer pipe and the inner pipe is ensured.

(3) The sensing signal amplification module adopted by the invention is provided with the small signal amplification chip, the response is sensitive, the weak signal is amplified, the distortion degree is low, and the heating temperature control precision is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a block diagram of the control scheme of the present invention;

FIG. 3 is a schematic view of a heating assembly according to the present invention;

fig. 4 is a schematic diagram of a sensing signal amplification module according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a special nitrogen gas heating device of oil development, includes a jar body 1, 1 one end of the jar body sets up intake pipe 2, the 1 other end of the jar body sets up blast pipe 3, 1 inner chamber of the jar body sets up into storehouse 4, heated warehouses 5 and exhaust storehouse 6, heated warehouses 5 sets up between storehouse 4 and the exhaust storehouse 6 of admitting air, just set up first guide plate 7 between storehouse 4 and the heated warehouses 5 of admitting air, set up second guide plate 8 between heated warehouses 5 and the exhaust storehouse 6, installation heating element 9 in the heated warehouses 5, 4 inner walls in the storehouse of admitting air set up

first temperature sensor

10, 5 inner walls in heated warehouses set up

second temperature sensor

11, 6 inner walls in the exhaust storehouse set up third temperature sensor 12, set up control box 13 on the 1 outer wall of the jar body, the terminal surface sets up display screen 14 before the control box 13, inside AT89C51 15, the single chip microcomputer 14 that sets up of control box, The input end of the sensing signal amplification module 16 is respectively connected with the first temperature sensor 10, the second temperature sensor 11 and the third temperature sensor 12, the output end of the sensing signal amplification module 16 is connected with the AT89C51 singlechip 15, and the AT89C51 singlechip 15 is connected with the heating assembly 9; the air inlet pipe 2 is provided with a first electromagnetic valve 25, the exhaust pipe 3 is provided with a second electromagnetic valve 26, and the first electromagnetic valve 25 and the second electromagnetic valve 26 are both connected with an AT89C51 single chip microcomputer.

The heating assembly 9 comprises an inner pipe 17 and an outer pipe 18, two ends of the outer pipe 18 are respectively connected with an air inlet flange 19 and an air outlet flange 20, the inner pipe 17 is arranged in the outer pipe 18, a plurality of grooves 21 for guiding air to pass through are arranged on the pipe wall of the inner pipe 17, and an induction heating coil 22 is arranged on the outer pipe 18. The heating assembly adopted by the invention can rapidly heat nitrogen, the temperature is raised to a required temperature, the heated nitrogen is pollution-free, and the heating efficiency is high.

In the invention, the sensing signal amplifying module 16 comprises an operational amplifier 23 and a two-stage field effect broadband amplifier 24, wherein one input end of the operational amplifier 23 is respectively connected with one end of a resistor B2 a and one end of a capacitor B2B, the other end of the capacitor B2B is grounded, the other end of the resistor B2 a is respectively connected with one end of a resistor A1 a and one end of a capacitor A1B, the other end of the capacitor A1B is connected with the output end of the operational amplifier 23, the other input end of the operational amplifier 23 is respectively connected with one end of a resistor C3 a and one end of a resistor D4 a, the other end of the resistor C3 a is connected with one end of a capacitor D4B and grounded, and the other end of the; the output end of the two-stage field effect broadband amplifier 24 is connected with one end of a capacitor E5 b, the other end of the capacitor E5 b is connected with one end of a resistor F6 a, the other end of the resistor F6 a is connected with the negative input end of the two-stage field effect broadband amplifier 24, the negative input end of the two-stage field effect broadband amplifier 24 is also connected with a resistor G7a and is grounded, the positive input end of the two-stage field effect broadband amplifier 24 is connected with one end of a resistor E5a, the other end of the resistor E5a is connected with the output end of the operational amplifier 23, the two-stage field effect broadband amplifier further comprises a capacitor F6 b, a capacitor G7 b and a capacitor H8 b, one end of the capacitor F6 b, one end of the capacitor G7 b and one. The operational amplifier processes the signals to ensure the quality of the transmission signals, amplifies the signal information by 2 times through a feedback principle, then transmits the signal information to the following two-stage field effect broadband amplifier to amplify the signals for the second time, and finally outputs the signals. The sensing signal amplification module adopted by the invention is provided with the small signal amplification chip, the response is sensitive, the weak signal is amplified, the distortion degree is low, and the heating temperature control precision is further improved.

The working principle is as follows: nitrogen gas gets into the storehouse of admitting air in the jar body from the intake pipe, in getting into the heated warehouses after flow equalizing through first guide plate, single chip microcomputer control heating element work, heating element heats nitrogen gas, and second temperature sensor gathers heating temperature in real time to feedback to the single chip microcomputer and handle, when heating to the settlement temperature, nitrogen gas is flow equalized through the second guide plate and is carried out the exhaust storehouse, and follow-up operation carries out in discharging the spray gun from the blast pipe.

In conclusion, the invention has simple structure and principle, can realize real-time monitoring of the heating temperature in the tank body, can realize rapid heating of nitrogen, and improves the subsequent oil exploitation efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special nitrogen gas heating device of oil development, includes jar body (1), its characterized in that: an air inlet pipe (2) is arranged at one end of the tank body (1), an exhaust pipe (3) is arranged at the other end of the tank body (1), an air inlet bin (4), a heating bin (5) and an exhaust bin (6) are arranged in an inner cavity of the tank body (1), a first guide plate (7) is arranged between the air inlet bin (4) and the heating bin (5), a second guide plate (8) is arranged between the heating bin (5) and the exhaust bin (6), a heating assembly (9) is installed in the heating bin (5), a first temperature sensor (10) is arranged on the inner wall of the air inlet bin (4), a second temperature sensor (11) is arranged on the inner wall of the heating bin (5), a third temperature sensor (12) is arranged on the inner wall of the exhaust bin (6), a control box (13) is arranged on the outer wall of the tank body (1), a display screen (14) is arranged on the front end face of the control box (13), an AT89C51 single chip microcomputer (15) and a sensing signal amplification module (16) are arranged in the control box (13), the input end of the sensing signal amplification module (16) is respectively connected with a first temperature sensor (10), a second temperature sensor (11) and a third temperature sensor (12), the output end of the sensing signal amplification module is connected with an AT89C51 single chip microcomputer (15), and the AT89C51 single chip microcomputer (15) is connected with a heating assembly (9);

the heating assembly (9) comprises an inner pipe (17) and an outer pipe (18), two ends of the outer pipe (18) are respectively connected with an air inlet flange (19) and an air outlet flange (20), the inner pipe (17) is arranged in the outer pipe (18), a plurality of grooves (21) for guiding air to pass through are formed in the pipe wall of the inner pipe (17), and an induction heating coil (22) is arranged on the outer pipe (18);

the sensing signal amplification module (16) comprises an operational amplifier (23) and a two-stage field effect broadband amplifier (24), wherein one input end of the operational amplifier (23) is respectively connected with one end of a resistor B (2a) and one end of a capacitor B (2B), the other end of the capacitor B (2B) is grounded, the other end of the resistor B (2a) is respectively connected with one end of a resistor A (1a) and one end of a capacitor A (1B), the other end of the capacitor A (1B) is connected with the output end of the operational amplifier (23), the other input end of the operational amplifier (23) is respectively connected with one end of a resistor C (3a) and one end of a resistor D (4a), the other end of the resistor C (3a) is connected with one end of a capacitor D (4B) and grounded, and the other end of the resistor D (4a) and the other end of the; the output end of the two-stage field effect broadband amplifier (24) is connected with one end of a capacitor E (5b), the other end of the capacitor E (5b) is connected with one end of a resistor F (6a), the other end of the resistor F (6a) is connected with the negative input end of the two-stage field effect broadband amplifier (24), the negative input end of the two-stage field effect broadband amplifier (24) is also connected with a resistor G (7a) and is grounded, the positive input end of the two-stage field effect broadband amplifier (24) is connected with one end of the resistor E (5a), the other end of the resistor E (5a) is connected with the output end of an operational amplifier (23), the two-stage field effect broadband amplifier further comprises a capacitor F (6b), a capacitor G (7b) and a capacitor H (8b), one end of the capacitor F (6b), one end of the capacitor G (7b) and one end of the capacitor, The other end of the capacitor H (8b) is grounded.

2. The nitrogen heating device special for oil exploitation according to claim 1, characterized in that: the air inlet pipe (2) is provided with a first electromagnetic valve (25), the exhaust pipe (3) is provided with a second electromagnetic valve (26), and the first electromagnetic valve (25) and the second electromagnetic valve (26) are both connected with an AT89C51 single chip microcomputer.