An improved spiral coil heater for oil field heaters
By introducing anti-vibration components and connecting components into the spiral coil heater of the oilfield heating furnace, the problem of vibration stress fatigue of the spiral heat exchange tubes was solved, the connection strength was enhanced, and the service life of the equipment was extended.
Patent Information
- Application Number
- CN202422867765.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing spiral heat exchange tubes in oilfield heating furnaces are prone to stress fatigue due to regular vibrations, which can easily lead to cracks. Furthermore, the welding stress concentration at the joints affects the equipment's lifespan.
The shock-absorbing components and connecting components, including a first fixing plate, a second fixing plate, plug-in parts and fixing bolts, are used to enhance the strength of the spiral heat exchange tube; the first fixing ring, the second fixing ring and the third fixing ring are welded to the connection between the manifold and the heat exchange tube to enhance the connection strength.
It effectively eliminates vibration stress fatigue of spiral heat exchange tubes, avoids cracks at the joints, and extends the service life of the equipment.
Smart Images
Figure CN223596588U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to heating furnace technical field, more particularly to an improved spiral coil heater for oilfield heating furnace. BACKGROUND
[0002] The oilfield heating furnace is a kind of equipment for heating and temperature rising of high-pressure crude oil and natural gas drilled in oilfield in the processing production process of oilfield;Simply speaking, when material flows in the heater pipeline, it exchanges heat with the outside flowing medium fluid, and then effectively transfers heat without direct contact, thereby improving heat exchange efficiency;
[0003] At present, commonly used heater includes serpentine coil and spiral, wherein the larger the pipe diameter of serpentine coil is, the thicker the pipe wall is, and the relatively lower the heat exchange coefficient is, generally not convenient to make large and multiple heat exchangers, otherwise it will lead to oversized equipment, and higher material and manufacturing cost;
[0004] The spiral heat exchange pipe has larger heat exchange area and smaller pipe diameter, so the heat exchange efficiency is high, and the manufacturing process is relatively simple, so it is more widely used;However, since each coil of heat exchange pipe in single spiral heat exchange pipe is in free state, when material flows, heat exchange pipe will produce regular vibration, thereby causing stress fatigue at the connection between spiral heat exchange pipe and header, and cracks are prone to occur after a long time, which will cause material leakage;In addition, since the connection mode of spiral heat exchange pipe and header is usually pipe plate joint form, welding stress is relatively concentrated, and stress form is poor, so an improved spiral coil heater for oilfield heating furnace is needed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing an improved spiral coil heater for oilfield heating furnace to solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: an improved spiral coil heater for oilfield heating furnace, comprising:
[0007] The heater main body comprises a feed header, a discharge header and a spiral heat exchange pipe, the spiral heat exchange pipe is connected to the feed header and the discharge header, and the two ends of the spiral heat exchange pipe are respectively inserted into the feed header and the discharge header;
[0008] The shockproof assembly comprises a first fixed plate, a second fixed plate, a plug-in part and a fixed bolt, the spiral heat exchange pipe is arranged between the first fixed plate and the second fixed plate, the plug-in part is plugged into the first fixed plate, the fixed bolt is plugged into the second fixed plate, and the fixed bolt is threadedly connected with the plug-in part.
[0009] A connecting assembly is connected between the feed header and the spiral heat exchange pipe, and between the discharge header and the spiral heat exchange pipe.
[0010] As a preferred solution, the shockproof assemblies are arranged at intervals along the center of the spiral heat exchange pipe.
[0011] As a preferred solution, the first fixing plate is provided with a plug hole and a limiting groove, the plug member comprises a plug plate and a limiting plate, the plug plate is threadedly connected with the fixing bolt, the plug hole is matched with the plug member, the limiting groove is matched with the limiting plate, and the width of the plug hole is smaller than that of the limiting groove.
[0012] As a preferred solution, the second fixing plate is provided with a bolt hole matched with the fixing bolt.
[0013] As a preferred solution, the connecting assembly comprises a first fixing ring, a second fixing ring and a third fixing ring, the first fixing ring is welded to one end of the spiral heat exchange pipe connected with the feed header, the second fixing ring is welded to one end of the feed header connected with the spiral heat exchange pipe, and the third fixing ring is welded to one end of the discharge header connected with the spiral heat exchange pipe, the first fixing ring is detachably connected with the second fixing ring, and the first fixing ring is detachably connected with the third fixing ring.
[0014] As a preferred solution, the connecting assembly further comprises fixing blocks, and the fixing blocks are arranged at intervals along the first fixing ring, the second fixing ring and the third fixing ring.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] The utility model discloses a first fixing plate, a second fixing plate, a plug member and a fixing bolt are arranged, the spiral heat exchange pipe is arranged between the first fixing plate and the second fixing plate, the plug member is plugged in the first fixing plate, the fixing bolt is plugged in the second fixing plate, and the fixing bolt is threadedly connected with the plug member, in the material flow process, the spiral heat exchange pipe will appear regular high -frequency vibration along with the flow of material, and the plug plate arranged between the first fixing plate and the second fixing plate is used to strengthen the strength of the spiral heat exchange pipe, and then the vibration of the spiral heat exchange pipe is eliminated to a certain extent, so as to prevent the stress fatigue of the spiral heat exchange pipe after vibration.
[0017] The utility model discloses, through being provided with first fixed ring, second fixed ring and third fixed ring, first fixed ring is welded in the one end portion of screw heat exchange pipe with the connection of feed header, second fixed ring is welded in the one end portion of feed header with the connection of screw heat exchange pipe, and third fixed ring is welded in the one end portion of discharge header with the connection of screw heat exchange pipe, when the welding connection of material through feed header and screw heat exchange pipe, and the welding connection of discharge header and screw heat exchange pipe, fixed block makes the strength of first fixed ring and the pipe wall of screw heat exchange pipe, second fixed ring and the pipe wall of feed header, and third fixed ring and the pipe wall of discharge header strengthen, avoid the connection of screw heat exchange pipe and feed header, and the connection of screw heat exchange pipe and discharge header produce stress fatigue and appear crack, prolong the service life of equipment simultaneously. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an angle structure schematic view of the utility model;
[0019] Figure 2 It is another angle structure schematic view of the utility model;
[0020] Figure 3 It is the partial close -up drawing of A part of the utility model; Figure 3
[0021] Figure 4 It is the partial close -up drawing of B part of the utility model; Figure 3
[0022] Figure 5 It is the partial close -up drawing of C part of the utility model; Figure 3
[0023] Figure 6 It is the partial explosion view of the shockproof subassembly of the utility model.
[0024] In the drawing: 1, heater main body;11, feed header;12, discharge header;13, screw heat exchange pipe;2, shockproof subassembly;21, first fixed plate;211, plug-in hole;212, limit slot;22, second fixed plate;221, bolt hole;23, plug-in piece;231, plug-in plate;232, limit plate;24, fixed bolt;3, connecting assembly;31, first fixed ring;32, second fixed ring;33, third fixed ring;34, fixed block. DETAILED DESCRIPTION
[0025] The utility model will be further described in connection with examples.
[0026] The following embodiments are used to illustrate the present application, but cannot be used to limit the protection scope of the present application. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements of the method of the present application under the concept of the present application all belong to the protection scope of the present application.
[0027] Please refer to Figures 1-6 The present application provides an improved spiral coil heater for oil field heating furnace, comprising:
[0028] The heater main body 1 comprises a feed header 11, a discharge header 12 and a spiral heat exchange pipe 13, the spiral heat exchange pipe 13 is connected to the feed header 11 and the discharge header 12, and the two ends of the spiral heat exchange pipe 13 are respectively inserted into the feed header 11 and the discharge header 12;
[0029] The shockproof assembly 2 comprises a first fixed plate 21, a second fixed plate 22, an insertion piece 23 and a fixed bolt 24, the spiral heat exchange pipe 13 is arranged between the first fixed plate 21 and the second fixed plate 22, the insertion piece 23 is inserted into the first fixed plate 21, the fixed bolt 24 is inserted into the second fixed plate 22, and the fixed bolt 24 is threadedly connected with the insertion piece 23;
[0030] The connecting assembly 3 is connected between the feed header 11 and the spiral heat exchange pipe 13, and between the discharge header 12 and the spiral heat exchange pipe 13;
[0031] A plurality of shockproof assemblies 2 are arranged, and the plurality of shockproof assemblies 2 are distributed at intervals with the center of the spiral heat exchange pipe 13 as the center;
[0032] The first fixed plate 21 has an insertion hole 211 and a limiting groove 212, the insertion piece 23 comprises an insertion plate 231 and a limiting plate 232, the insertion plate 231 is threadedly connected with the fixed bolt 24, the insertion hole 211 is matched with the insertion piece 23, the limiting groove 212 is matched with the limiting plate 232, and the width of the insertion hole 211 is smaller than the width of the limiting groove 212;
[0033] The second fixed plate 22 has a bolt hole 221, and the bolt hole 221 is matched with the fixed bolt 24;
[0034] The connecting assembly 3 comprises a first fixed ring 31, a second fixed ring 32 and a third fixed ring 33, the first fixed ring 31 is welded to one end of the spiral heat exchange pipe 13 connected with the feed header 11, the second fixed ring 32 is welded to one end of the feed header 11 connected with the spiral heat exchange pipe 13, and the third fixed ring 33 is welded to one end of the discharge header 12 connected with the spiral heat exchange pipe 13, the first fixed ring 31 is detachably connected with the second fixed ring 32, and the first fixed ring 31 is detachably connected with the third fixed ring 33;
[0035] The connecting assembly 3 further comprises fixing blocks 34, which are provided with a plurality of fixing blocks 34, and the first fixing ring 31, the second fixing ring 32 and the third fixing ring 33 are arranged at intervals among the fixing blocks 34.
[0036] The working principle and use process of the utility model:
[0037] The material enters the feed header 11 from the end of the feed header 11 away from the connecting spiral heat exchange pipe 13, and flows in the spiral heat exchange pipe 13, and finally flows out from the end of the discharge header 12 away from the connecting spiral heat exchange pipe 13; in this way, the purpose of heat exchange between the material flowing in the spiral heat exchange pipe 13 and the medium fluid outside the spiral heat exchange pipe 13 is achieved;
[0038] During the material flow process, the spiral heat exchange pipe 13 will regularly vibrate at a high frequency along with the flow of the material, and the plug-in plate 231 arranged between the first fixed plate 21 and the second fixed plate 22 is used to strengthen the strength of the spiral heat exchange pipe 13, so as to eliminate the vibration of the spiral heat exchange pipe 13 to a certain extent, so as to prevent the spiral heat exchange pipe 13 from producing stress fatigue after vibration.
[0039] In addition, when the material passes through the welded connection between the feed header 11 and the spiral heat exchange pipe 13, and the welded connection between the discharge header 12 and the spiral heat exchange pipe 13, the fixing block 34 is arranged to strengthen the strength of the first fixing ring 31 and the pipe wall of the spiral heat exchange pipe 13, the second fixing ring 32 and the pipe wall of the feed header 11, and the third fixing ring 33 and the pipe wall of the discharge header 12, so as to avoid cracks at the connection between the spiral heat exchange pipe 13 and the feed header 11, and the connection between the spiral heat exchange pipe 13 and the discharge header 12 due to stress fatigue, and prolong the service life of the equipment.
[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An improved spiral coil heater for oil field heaters, characterized in that, The utility model relates to a kind of spiral heat exchange tube heater, including: Heater body (1), the heater body (1) includes feed header (11), discharge header (12) and spiral heat exchange tube (13), the spiral heat exchange tube (13) is connected to the feed header (11) and the discharge header (12), and the two ends of the spiral heat exchange tube (13) are inserted respectively the feed header (11) and the discharge header (12); Anti-vibration assembly (2), the anti-vibration assembly (2) includes first fixed plate (21), second fixed plate (22), insert piece (23) and fixed bolt (24), the spiral heat exchange tube (13) is placed between the first fixed plate (21) and the second fixed plate (22), the insert piece (23) is inserted in the first fixed plate (21), the fixed bolt (24) is inserted in the second fixed plate (22), the fixed bolt (24) is threadedly connected with the insert piece (23); Connecting assembly (3), the connecting assembly (3) is connected between the feed header (11) and the spiral heat exchange tube (13), and the discharge header (12) and the spiral heat exchange tube (13).
2. An improved spiral coil heater for use in oilfield heaters as defined in claim 1, wherein: The anti-vibration assembly (2) is provided with multiple, multiple anti-vibration assemblies (2) are distributed with the center of the spiral heat exchange tube (13) interval.
3. An improved spiral coil heater for use in oil field heaters as defined in claim 2, wherein: The first fixed plate (21) has insert hole (211) and limiting slot (212), the insert piece (23) includes insert plate (231) and limiting plate (232), the insert plate (231) is threadedly connected with the fixed bolt (24), the insert hole (211) is matched with the insert piece (23), the limiting slot (212) is matched with the limiting plate (232), the width of the insert hole (211) is less than the width of the limiting slot (212).
4. An improved spiral coil heater for use in oilfield heaters as defined in claim 3, wherein: The second fixed plate (22) has bolt hole (221), and the bolt hole (221) is matched with the fixed bolt (24).
5. An improved spiral coil heater for use in oil field heaters as defined in claim 2, wherein: The connecting assembly (3) includes first fixed ring (31), second fixed ring (32) and third fixed ring (33), the first fixed ring (31) is welded to one end of the spiral heat exchange tube (13) connected with the feed header (11), the second fixed ring (32) is welded to one end of the feed header (11) connected with the spiral heat exchange tube (13), the third fixed ring (33) is welded to one end of the discharge header (12) connected with the spiral heat exchange tube (13), the first fixed ring (31) is detachably connected with the second fixed ring (32), and the first fixed ring (31) is detachably connected with the third fixed ring (33).
6. An improved spiral coil heater for use in oilfield heaters as defined in claim 5, wherein: The connecting assembly (3) further includes fixed block (34), and the fixed block (34) is provided with multiple, multiple The fixed block (34) is arranged at intervals in the first fixed ring (31), the second fixed ring (32) and the third fixed ring (33).