Steam heating coil device
By using U-shaped coil devices made of PVDF material, the problems of easy damage and difficult maintenance of spiral coils have been solved, enabling independent production and maintenance, reducing costs and improving corrosion resistance and high temperature resistance.
Patent Information
- Application Number
- CN202520332680.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In existing germanium raw material distillation and recovery devices, spiral coils are prone to damage, difficult to maintain, costly, and wasteful of resources, and cannot be reused.
Flanges, straight pipes, elbows, and fixing rings made of PVDF material form U-shaped coils, which are then connected by hot-melt to form air inlet and water outlet pipes, enabling independent production and maintenance.
It reduces production costs, simplifies installation and maintenance, improves the corrosion resistance and high-temperature resistance of the equipment, and facilitates the repair and replacement of damaged parts.
Smart Images
Figure CN223783402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the germanium raw material distillation production crude germanium tetrachloride process technical field, concretely relates to a kind of steam heating coil device more convenient to manufacture, maintain and corrosion-resistant high temperature-resistant. BACKGROUND
[0002] The steam heating coil device of existing germanium raw material distillation recovery crude germanium tetrachloride is because its inside is that DN40mm carbon steel coil is lined with 2-3mm tetrafluoride, and the whole tetrafluoride spiral coil is once high-temperature forming in manufacturer equipment, and existing production process is that the whole coil is installed in 5000L kettle to heat hydrochloric acid and raw material in kettle to recover crude germanium tetrachloride, and the whole coil is in strong corrosive hot acid for a long time, inner wall is steamed and cooled with water, and the contact area of inside and outside is larger and repeated operation coil is easily damaged, although present coil can resist corrosion and can resist high temperature and high pressure.But because the whole coil is spiral, and cannot be used for secondary maintenance, because inside is carbon steel pipe and is not corrosion-resistant, so small hole of the whole coil will make distillation acid and germanium raw material flow into coil inside along small hole and flow into cooling water pool, causing environmental pollution and loss of germanium raw material.And the whole lining tetrafluoride spiral coil is extremely high in cost, and production is extremely troublesome, and time is very long, and small hole makes the whole coil cannot be used, and also cannot be used for secondary maintenance, causing resource waste and huge economic loss. SUMMARY
[0003] In view of the problems of spiral coil production process in the prior art, which is complicated and has high technical content, must be produced by special equipment and manufacturer, cannot be used for maintenance, has high production cost and is seriously resource-wasting, a steam heating coil device is provided.
[0004] A steam heating coil device, characterized in that it comprises flange joints, PVDF straight pipes, PVDF elbows and a fixing ring, a plurality of PVDF straight pipes and PVDF elbows are connected in an interval to form a U-shaped coil in a ring shape, the fixing ring is a ring-shaped cylinder and is provided with insertion holes matched with the number and diameter of the PVDF straight pipes, each PVDF straight pipe is inserted into an insertion hole to fix the U-shaped coil in the fixing ring, and the PVDF straight pipes at both ends of the U-shaped coil are heat-welded to form a gas inlet pipe and a water outlet pipe, and the gas inlet pipe and the water outlet pipe are respectively connected to a steam inlet and a cooling water outlet through flange joints.
[0005] Further, the PVDF straight pipes and the PVDF elbows are both DN40mm.
[0006] Further, the flange joints are composed of a DN40mm PVDF flange and a DN25mm flange, the DN40mm PVDF flange is connected to the gas inlet pipe and the water outlet pipe, and the DN25mm flange is connected to the steam inlet and the cooling water outlet.
[0007] The utility model discloses the beneficial effect lies in: adopt PVDF material to link, can produce and maintain oneself, reduce production cost, change spiral coil pipe into U type coil pipe, it is convenient to direct hot melt link, and there is interval between every U type coil pipe, and it is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is a kind of steam heating coil device side view.
[0009] Figure 2 It is a kind of steam heating coil device plan view.
[0010] Wherein: 1-flange joint, 2-PVDF straight pipe, 3-PVDF elbow, 4-U type coil pipe, 5-fixing ring. DETAILED DESCRIPTION
[0011] Example 1: a kind of steam heating coil device, including flange joint 1, PVDF straight pipe 2, PVDF elbow 3 and fixing ring 5, using several DN40mm PVDF straight pipe 2 and DN40mm PVDF elbow 3 interval hot melt connection and constitute annular U type coil pipe 4.Fixed ring 5 is annular cylinder, and is provided with the insertion hole matched with the number and diameter of PVDF straight pipe 2, each PVDF straight pipe 2 is inserted into insertion hole so that U type coil pipe 4 is fixed in fixing ring 5, PVDF material has the characteristics of corrosion resistance and high temperature resistance (long time use-40 ℃ to 150 ℃) high pressure (1.6MPa under positive pressure), so it fully meets the production demand, PVDF material can be welded and hot melt and conveniently link, every PVDF straight pipe 2 between U type coil pipe 4 has interval, and PVDF pipe can also be directly welded at damaged place, it is convenient to maintain. In the both ends of U type coil pipe 4, hot melt connection PVDF straight pipe forms air inlet pipe and outlet pipe, and air inlet pipe and outlet pipe end part are connected steam inlet and cooling water outlet using flange joint 1 respectively, and flange joint 1 is connected by DN40mm PVDF flange and DN25mm flange link, and DN40mm PVDF flange is connected with air pipe and outlet pipe, and DN25mm flange is connected with steam inlet and cooling water outlet.
Claims
1. A steam heating coil device, characterized in that: The system includes flange joints, PVDF straight pipes, PVDF elbows, and fixing rings. Several PVDF straight pipes and PVDF elbows are connected at intervals to form a U-shaped coil. The fixing ring is annular and cylindrical, with insertion holes matching the number and diameter of the PVDF straight pipes. Each PVDF straight pipe is inserted into the insertion hole to fix the U-shaped coil inside the fixing ring. PVDF straight pipes are heat-fused to both ends of the U-shaped coil to form an air inlet pipe and a water outlet pipe. The ends of the air inlet pipe and the water outlet pipe are connected to the steam inlet and cooling water outlet respectively using flange joints.
2. The steam heating coil device as described in claim 1, characterized in that... The PVDF straight pipe and PVDF elbow are both DN40mm in size.
3. The steam heating coil device as described in claim 1, characterized in that... The flange joint is composed of a DN40mm PVDF flange and a DN25mm flange. The DN40mm PVDF flange is connected to the gas pipe and the water outlet pipe, and the DN25mm flange is connected to the steam inlet and the cooling water outlet.