Pipeline heating device for petrochemical industry
By setting up a hollow structure heating component outside the petrochemical conveying pipeline to circulate and flow, the problems of pipeline freezing and uneven heat conduction in low-temperature environments are solved, and efficient heat utilization and heating effect are achieved.
Patent Information
- Application Number
- CN202420506384.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The existing petrochemical conveying pipelines are prone to freezing in low temperature environments, resulting in affected conveying functions and damage to the pipeline. At the same time, heat conduction is uneven during heating, resulting in large heat consumption and reduced heating effect.
A pipeline heating device for petrochemical industry was designed. By setting an outer pipe outside the conveying pipeline, cutting arc-shaped grooves on the outer wall of the outer pipe, and installing through grooves and hole grooves inside to form a hollow structure to circulate and flow to reduce heat consumption. And improve heat utilization.
It realizes uniform heat conduction, reduces heat consumption, improves heating effect and pipe heating uniformity, and ensures stable transportation under low temperature environments.
Smart Images
Figure CN222186207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petrochemical industry, in particular to a pipeline heating device for petrochemical industry. Background Art
[0002] Petrochemical pipelines are facilities used to transport crude oil, refined oil, natural gas and other petrochemical products. They are usually made of steel pipes or plastic pipes and are laid underground or on the ground to ensure the safe and efficient transportation of petrochemical products. When petrochemical pipelines are used in low-temperature environments in winter, the low temperatures in winter will cause the pipelines to freeze, which will affect the transportation function and cause pipeline rupture or leakage, leading to pipeline damage.
[0003] However, in the current prior art, when heating a pipeline, multiple heating devices are generally installed in sections on the pipeline line. However, due to the rapid temperature loss of the outer wall of the pipeline, a large consumption will occur during heat conduction, so that the heat cannot be fully utilized, and the heat distribution is uneven, resulting in reduced heating effect. Utility Model Content
[0004] The purpose of the utility model is to provide a pipeline heating device for petrochemical industry to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline heating device for petrochemical industry, comprising a conveying pipeline and a support frame, a heating component for heating the conveying pipeline is arranged outside the conveying pipeline, the heating component comprises an outer tube arranged outside the conveying pipeline, the outer wall of the outer tube is provided with a plurality of arc grooves, the inner walls of the plurality of arc grooves are provided with through grooves, the interior of the through grooves is provided with a plurality of hole grooves, the other end of the hole groove is provided with a cavity, the outer wall of the cavity is provided with a plurality of discharge holes, the outside of the plurality of arc grooves is provided with a support frame, the top of the support frame is provided with a positioning frame, and heating holes are provided on both sides of the positioning frame.
[0006] Preferably, the outer tube is sleeved on the outside of the conveying pipeline, and the plurality of arc-shaped grooves are evenly arranged on the outside of the outer tube.
[0007] Preferably, a plurality of the holes and grooves are annularly arranged inside the outer tube, and two ends of the holes and grooves are respectively connected to the cavity and the through groove, and steam can circulate between the holes and grooves and the cavity.
[0008] Preferably, the plurality of discharge holes are distributed in a ring shape on the outer wall of the cavity, and electromagnetic valves are arranged inside the plurality of discharge holes to facilitate the discharge of gas inside the hole grooves.
[0009] Preferably, the positioning frame is connected to the top of the support frame by bolts, the positioning frame is an arc-shaped structure and matches the arc-shaped groove, and the interior of the positioning frame is connected to the output end of the steam equipment through a connecting pipe.
[0010] Preferably, the positioning frame can be embedded in the arc-shaped groove, and the heating holes on the outer wall of the positioning frame match the through groove, and steam can be transported into the through groove through the heating holes.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the present application adopts a heating component, by cutting a plurality of arc grooves on the outer tube of the conveying pipeline, and setting a hollow structure composed of holes and grooves and cavities inside the outer tube, so that steam can be transported in the holes and grooves to wrap the steam, thereby reducing heat consumption, and the steam can circulate in the holes and grooves, fully contacting the conveying pipeline, so that the heat can be fully utilized, and the circulating flow can evenly apply the heat to the conveying pipeline, thereby improving the uniformity of pipeline heating.
[0012] The utility model can wrap the heat, reduce the heat consumption, improve the heat utilization and heating effect, and evenly conduct the heat through circulation to ensure the uniformity of pipeline heating. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a stereoscopic diagram of the overall structure of the utility model.
[0014] Figure 2 This is the front structural diagram of the arc groove of the utility model.
[0015] Figure 3 This is an internal cross-sectional view of the outer tube of the utility model.
[0016] Figure 4 This is the appearance structure diagram of the positioning frame of the utility model.
[0017] In the figure: 1, conveying pipeline; 2, outer tube; 201, arc groove; 3, through groove; 301, hole groove; 302, cavity; 4, discharge hole; 5, support frame; 6, positioning frame; 601, heating hole. DETAILED DESCRIPTION Example
[0018] See also Figure 1-4The utility model discloses a pipeline heating device for petrochemical industry, comprising a conveying pipeline 1 and a support frame 5. A heating component for heating the conveying pipeline 1 is arranged outside the conveying pipeline 1. The heating component comprises an outer tube 2 arranged outside the conveying pipeline 1, which can be sleeved outside the conveying pipeline 1 and wrap the conveying pipeline 1 for protection. The outer wall of the outer tube 2 is provided with a plurality of arc grooves 201 for matching a positioning frame 6 for conveying steam. The inner walls of the plurality of arc grooves 201 are all provided with through grooves 3 for conveying steam to a plurality of hole grooves 301 so that the steam can flow evenly in the plurality of hole grooves 301. The through grooves 3 are provided with a plurality of hole grooves 301 inside, and the plurality of hole grooves 301 are distributed in an annular shape in the outer tube 2 so that heat can be evenly conducted in the conveying pipeline 1. The other end of the hole groove 301 is provided with a cavity 30 2. A temperature sensor is installed in the cavity 302 to detect the temperature of the gas in the cavity 302. When the temperature is lower than the set value, the solenoid valve of the discharge hole 4 is controlled by the PLC controller to open to discharge the cooled steam. The outer wall of the cavity 302 is provided with multiple discharge holes 4. A support frame 5 is provided outside the multiple arc grooves 201. A positioning frame 6 is provided on the top of the support frame 5. The positioning frame 6 can be embedded in the arc groove 201, and a sealing strip is provided outside the positioning frame 6 to ensure the sealing after embedding. Heating holes 601 are provided on both sides of the positioning frame 6. The heating holes 601 can inject steam into the through groove 3 and transport it to the multiple hole grooves 301 and the cavity 302. The steam is injected intermittently. After injecting one wave, wait for the temperature in the hole groove 301 to drop before injecting the next wave of steam for heating.
[0019] In this embodiment, all electrical components are controlled by conventional controllers.
[0020] For example, please refer to Figure 1-4The outer tube 2 is sleeved on the outside of the conveying pipeline 1, and the plurality of arc grooves 201 are evenly arranged on the outside of the outer tube 2, and the plurality of hole grooves 301 are annularly arranged inside the outer tube 2, and the two ends of the hole groove 301 are respectively communicated with the cavity 302 and the through groove 3, and the steam can circulate between the hole groove 301 and the cavity 302, and the plurality of discharge holes 4 are annularly distributed on the outer wall of the cavity 302, and the plurality of discharge holes 4 are internally provided with solenoid valves to facilitate the discharge of the gas inside the hole groove 301, and the positioning frame 6 is connected to the top of the support frame 5 by bolts, and the positioning frame 6 is an arc structure and matches the arc groove 201, and the interior of the positioning frame 6 is connected to the output end of the steam equipment through a connecting pipe, and the positioning frame 6 can be embedded in the arc groove 201, and at the same time, the heating hole 601 on the outer wall of the positioning frame 6 matches the through groove 3, and the steam can be transported to the through groove 3 through the heating hole 601. When in use, first embed the positioning frame 6 into the arc groove 201, and at the same time, the heating holes 601 on both sides of the positioning frame 6 match the through groove 3 on the inner wall of the arc groove 201, and then the steam is injected into the through groove 3 through the heating holes 601 through the pump body. The steam enters the multiple hole grooves 301 through the through groove 3 and circulates. The heat generated by the steam is evenly conducted to the conveying pipeline 1 through the circulation. When the temperature sensor in the cavity 302 detects that the temperature in the hole groove 301 drops to the set value, the solenoid valve in the discharge hole 4 is controlled to open by the PLC controller to discharge the steam with reduced temperature, and at the same time, new steam is injected for heating.
[0021] The working process of the utility model is as follows: when in use, firstly, the positioning frame 6 is embedded in the arc groove 201, and at the same time, the heating holes 601 on both sides of the positioning frame 6 match the through grooves 3 on the inner wall of the arc groove 201, and then the steam is injected into the through grooves 3 through the heating holes 601 through the pump body, and the steam enters the multiple hole grooves 301 through the through grooves 3 and circulates, and the heat generated by the steam is uniformly conducted to the conveying pipeline 1 through the circulation, and when the temperature sensor in the cavity 302 detects that the temperature in the hole groove 301 drops to the set value, the PLC controller controls the solenoid valve in the discharge hole 4 to open, so that the steam with reduced temperature is discharged, and new steam is injected for heating at the same time. The utility model realizes the wrapping of heat, reduces heat consumption, improves heat utilization and heating effect, and evenly conducts heat through circulation to ensure the uniformity of pipeline heating.
Claims
1. A pipeline heating device for petrochemical industry, comprising a delivery pipeline (1) and a support frame (5), wherein a heating component for heating the delivery pipeline (1) is arranged outside the delivery pipeline (1), characterized in that: The heating assembly comprises an outer tube (2) arranged outside the conveying pipeline (1); the outer wall of the outer tube (2) is provided with a plurality of arc-shaped grooves (201); the inner walls of the plurality of arc-shaped grooves (201) are provided with through grooves (3); the interior of the through grooves (3) is provided with a plurality of hole grooves (301); the other end of the hole groove (301) is provided with a cavity (302); the outer wall of the cavity (302) is provided with a plurality of discharge holes (4); the exterior of the plurality of arc-shaped grooves (201) is provided with a support frame (5); the top of the support frame (5) is provided with a positioning frame (6); and both sides of the positioning frame (6) are provided with heating holes (601).
2. A petrochemical pipeline heating device according to claim 1, characterized in that: The outer tube (2) is sleeved on the outside of the delivery pipeline (1), and the plurality of arc-shaped grooves (201) are evenly arranged on the outside of the outer tube (2).
3. A petrochemical pipeline heating device according to claim 1, characterized in that: The plurality of holes (301) are arranged in an annular manner inside the outer tube (2), and the two ends of the holes (301) are respectively connected to the cavity (302) and the through groove (3), and steam can circulate between the holes (301) and the cavity (302).
4. The petrochemical pipeline heating device according to claim 1, characterized in that: The plurality of discharge holes (4) are distributed in an annular manner on the outer wall of the cavity (302), and electromagnetic valves are arranged inside the plurality of discharge holes (4) to facilitate the discharge of gas inside the hole groove (301).
5. The petrochemical pipeline heating device according to claim 1, characterized in that: The positioning frame (6) is connected to the top of the support frame (5) via bolts; the positioning frame (6) is an arc-shaped structure and matches the arc-shaped groove (201); the interior of the positioning frame (6) is connected to the output end of the steam equipment via a connecting pipe.
6. The petrochemical pipeline heating device according to claim 1, characterized in that: The positioning frame (6) can be embedded in the arc-shaped groove (201), and the heating hole (601) on the outer wall of the positioning frame (6) matches the through groove (3), so that steam can be transported into the through groove (3) through the heating hole (601).