Automatic heating device for fluid pipeline transportation

Abstract

The invention discloses a fluid pipeline conveying automatic heating device which comprises an inlet pipeline, the bottom end of the inlet pipeline is connected with a plurality of heating short sections, the bottom ends of the plurality of heating short sections are connected with the same liquid outlet, the top ends of the heating short sections are provided with heating short section front valves, and the top ends of the heating short sections are provided with heating short section rear valves. And a heating short section rear valve is mounted at the bottom end of the heating short section. The device is small, exquisite, flexible, low in maintenance cost, basically unattended, capable of achieving automatic temperature control, remote control and the like, and very convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline transportation, in particular to an automatic heating device for fluid pipeline transportation. Background Art

[0002] In industrial production, fluids need to be transported at a certain temperature through pipelines to maintain normal transportation: for example, during the transportation of natural gas, hydrates may form at low temperatures, clogging the pipeline; during oil extraction, crude oil is transported from the high-temperature area at the bottom of the well to the wellhead, from the wellhead to the metering station, from the metering station to the joint station, and even to the refining terminal; each of these processes requires maintaining a certain temperature, otherwise the viscosity of the crude oil will increase, causing solidification and clogging the pipeline; when the temperature of residential heating water gradually decreases during pipeline transportation and cannot meet the heating demand, it is necessary to further increase the temperature.

[0003] In the above applications, conventional heating devices such as heating furnaces can meet the needs, but the devices are large, temperature control is inflexible, maintenance is difficult, and requires a lot of manpower and physical resources. Summary of the Invention

[0004] The object of the present invention is to provide an automatic heating device for fluid pipeline transportation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automatic heating device for fluid pipeline transportation, comprising an inlet pipeline, wherein the bottom end of the inlet pipeline is connected to multiple heating nipples, and the bottom ends of the multiple heating nipples are connected to the same liquid outlet, a heating nipple front valve is installed at the top end of the heating nipple, and a heating nipple rear valve is installed at the bottom end of the heating nipple.

[0006] Preferably, a first cleaning port is provided at the top of the heating nipple, and a second cleaning port is provided at the bottom of the heating nipple.

[0007] Preferably, an inlet valve is installed at the inlet pipeline, and an outlet valve is installed at the liquid outlet.

[0008] Preferably, an inlet temperature sensor is installed at the inlet pipeline, and an outlet temperature sensor is installed at the liquid outlet.

[0009] Preferably, the heating pup joint is wrapped with an induction coil, a heating rod is inserted into the heating pup joint, and a heating plate is cut into the pipe wall of the heating pup joint.

[0010] Preferably, the heating nipple is connected to the inlet pipeline and the liquid outlet through a flange.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] After the fluid enters the liquid inlet pipe through the liquid inlet valve, the fluid can flow evenly to each heating nipple due to the identical structure;

[0013] This heating device uses high-precision inlet and outlet temperature sensors to measure the fluid temperature within the pipeline. It utilizes the PID function of a high-precision temperature controller to control the output voltage of the power regulator, achieving high-precision temperature regulation. The fluid outlet temperature can be set via the touchscreen on the distribution box. Once set, the device automatically adjusts power output to achieve the set outlet temperature. The heating components of the device are connected by flanges, forming a single unit. Once disassembled, they can be easily transported and maintained.

[0014] Each heating nipple in the heating device is equipped with valves at both ends. There is a cleaning port on the nipple, which can be used as an exhaust port and a sampling port. When the heating temperature drops under the same conditions, the heating nipple can be cleaned. When cleaning, close the valves at both ends, discharge the internal fluid from the cleaning port, connect the cleaning pipeline, and inject the cleaning fluid. After cleaning, discharge the cleaning fluid, close the cleaning port valve, and open the valves at both ends to allow the fluid in.

[0015] The heating device can be used in series or in parallel according to the actual situation;

[0016] The present invention is compact and flexible, has a very low maintenance cost, basically does not require human supervision, can realize automatic temperature control, remote control, etc., and is very convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of three heating subs of the present invention;

[0018] Figure 2 This is a schematic structural diagram of six heating subs according to the present invention.

[0019] In the figure: 1. Inlet valve; 2. Inlet temperature sensor; 3. Inlet pipeline; 4. Valve before heating nipple; 5. Cleaning port 1; 6. Heating nipple; 7. Cleaning port 2; 8. Valve after heating nipple; 9. Outlet temperature sensor; 10. Liquid outlet; 11. Outlet valve. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-2The present invention provides a technical solution: an automatic heating device for fluid pipeline transportation, including an inlet pipeline 3, a plurality of heating nipples 6 are connected to the bottom end of the inlet pipeline 3, and the bottom ends of the plurality of heating nipples 6 are connected to the same liquid outlet 10, a heating nipple front valve 4 is installed at the top end of the heating nipple 6, and a heating nipple rear valve 8 is installed at the bottom end of the heating nipple 6.

[0022] In the present invention, a cleaning port 1 5 is provided on the top of the heating sub 6 , and a cleaning port 2 7 is provided on the bottom of the heating sub 6 .

[0023] In the present invention, an inlet valve 1 is installed at the inlet pipeline 3, and an outlet valve 11 is installed at the liquid outlet 10.

[0024] In the present invention, an inlet temperature sensor 2 is installed at the inlet pipeline 3, and an outlet temperature sensor 9 is installed at the liquid outlet 10.

[0025] In the present invention, the induction coil is wound around the heating subsection 6, a heating rod is inserted into the heating subsection 6, and a heating plate is cut into the pipe wall of the heating subsection 6;

[0026] The heating sub adopts but is not limited to the following heating methods:

[0027] 1. Externally wound inductor coil, using electromagnetic heating;

[0028] 2. The heating rod in the pipeline contacts the fluid to achieve fluid heating;

[0029] 3. Heating rods and heating plates are cut into the pipe wall to achieve heating method to increase the temperature of the pipe wall;

[0030] 4. Heating method using a combination of the above methods.

[0031] In the present invention, the heating nipple 6 is connected to the inlet pipeline 3 and the liquid outlet 10 through a flange, and becomes an integral whole after being connected. It is also convenient for transportation and maintenance after being disassembled.

[0032] The automatic fluid pipeline heating device of the present invention can have one, two, three, or even more heating nipples. Each heating nipple has valves and cleaning ports at both ends. The cleaning ports can be used as exhaust and sampling ports. The length, wall thickness, and pipe diameter of the heating nipple are determined according to specific needs. The liquid inlet pipe, liquid inlet valve, heating nipple, liquid outlet pipe, and liquid outlet valve are all connected by flanges.

[0033] After the fluid enters the inlet pipe through the inlet valve, due to the identical structure, the fluid can flow evenly to each heating nipple. The high-precision inlet temperature sensor and outlet temperature sensor are used to measure the fluid temperature in the pipeline. The PID function of the high-precision temperature controller is used to control the output voltage of the power regulator to achieve high-precision temperature regulation. The fluid outlet temperature can be set through the touch screen of the distribution box. After setting, the device will automatically adjust the power output to make the outlet temperature reach the set value.

[0034] Each heating nipple in the heating device is equipped with valves at both ends. There is a cleaning port on the nipple, which can be used as an exhaust port and a sampling port. When the heating temperature is lowered under the same conditions, the heating nipple can be cleaned. When cleaning, close the valves at both ends, discharge the internal fluid from the cleaning port, connect the cleaning pipeline, and inject the cleaning fluid. After cleaning, discharge the cleaning fluid, close the cleaning port valve, and open the valves at both ends to allow the fluid to enter.

[0035] The heating device can be used in series or in parallel according to the actual situation.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic heating device for fluid pipeline transportation, characterized by: The invention comprises an inlet pipeline (3), wherein the bottom end of the inlet pipeline (3) is connected to a plurality of heating nipples (6), and the bottom ends of the plurality of heating nipples (6) are connected to the same liquid outlet (10), a heating nipple front valve (4) is installed at the top end of the heating nipple (6), and a heating nipple rear valve (8) is installed at the bottom end of the heating nipple (6).

2. The automatic heating device for fluid pipeline transportation according to claim 1, characterized in that: The top of the heating short section (6) is provided with a cleaning port 1 (5), and the bottom of the heating short section (6) is provided with a cleaning port 2 (7).

3. The automatic heating device for fluid pipeline transportation according to claim 1, characterized in that: An inlet valve (1) is installed at the inlet pipeline (3), and an outlet valve (11) is installed at the liquid outlet (10).

4. The automatic heating device for fluid pipeline transportation according to claim 1, characterized in that: An inlet temperature sensor (2) is installed at the inlet pipeline (3), and an outlet temperature sensor (9) is installed at the liquid outlet (10).

5. The automatic heating device for fluid pipeline transportation according to claim 1, characterized in that: The heating short section (6) is wrapped with an induction coil, a heating rod is inserted into the heating short section (6), and a heating plate is cut into the pipe wall of the heating short section (6).

6. The automatic heating device for fluid pipeline transportation according to claim 1, characterized in that: The heating nipple (6) is connected to the inlet pipeline (3) and the liquid outlet (10) via a flange.

Images