Combined cycle horizontal type waste heat boiler module hanging structure
By adopting a distributed connecting pipe and a central pipe design in the waste heat boiler, and placing the hanger device outside the flue, the problem of direct contact between the traditional hanging device and the high-temperature flue gas is solved, achieving safe and stable material selection and suspension effect.
Patent Information
- Application Number
- CN202423017397.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional waste heat boiler module hanging devices are difficult to select materials that meet the requirements for long-term safe and stable operation in high-temperature flue gas environments, and the direct contact between the hanging rod device and high-temperature flue gas makes material selection difficult.
The design employs a distributed connection pipe and a central header pipe, placing the hanger device outside the flue. The heated surface modules are connected through the distributed connection pipe and the central header pipe, avoiding direct contact between the hanger device and the high-temperature flue gas. Conventional materials are selected to meet the requirements for safe and stable operation.
It has achieved long-term safe and stable operation of the hanger device, avoided the difficulty of material selection, met the suspension requirements, and did not affect the heat transfer efficiency.
Smart Images
Figure CN223525124U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a waste heat boiler technical field, concretely is a combined cycle horizontal waste heat boiler module hanging structure. BACKGROUND
[0002] The high parameter gas turbine-steam combined cycle generator set has the advantage of high efficiency, and can realize the maximization of resource utilization. But the outlet flue gas temperature of the unit gas turbine is also improved. Taking H-grade gas turbine as an example, the combustion temperature of the gas turbine is about 1400 degrees Celsius, and the outlet exhaust temperature of the gas turbine is about 660 degrees Celsius. When the flue gas of this temperature enters the waste heat boiler for heat exchange, because the traditional heating surface module hanging device is arranged in the boiler furnace and directly contacts with the flue gas, in the 660 degrees Celsius flue gas temperature environment, the hanging rod device is difficult to select the material meeting the long-term safe and stable operation when designing and selecting. SUMMARY
[0003] In order to solve the above technical problems, the utility model provides a combined cycle horizontal waste heat boiler module hanging structure, which meets the module suspension requirements, avoids direct contact between the hanging rod device and the high-temperature flue gas, and meets the requirements of long-term safe and stable operation.
[0004] The technical scheme is as follows: a combined cycle horizontal waste heat boiler module hanging structure, comprising a heating surface module, characterized in that the heating surface module is connected to the bottom of a dispersion connecting pipe, the dispersion connecting pipe penetrates through the top protection plate of the boiler and is connected to a summary mother pipe at the top, and the summary mother pipe is hung on the boiler steel structure large plate beam through a hanging bracket device.
[0005] Further characterized in that the dispersion connecting pipe is provided with an expansion joint at the position penetrating through the top protection plate of the boiler.
[0006] Both ends of each heating surface module are connected to the dispersion connecting pipe.
[0007] After the utility model is adopted, by the design of the dispersion connecting pipe and the summary mother pipe, the hanging bracket device is arranged outside the flue, direct contact between the hanging bracket device and the high-temperature flue gas is avoided, and the hanging bracket device can meet the requirements of long-term safe and stable operation by using conventional materials. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 The utility model structure schematic diagram. DETAILED DESCRIPTION
[0009] See Figure 1As shown, a combined cycle horizontal waste heat boiler module hanging structure includes a heating surface module 1, the bottom of which is connected with a dispersion connecting pipe 2, generally two dispersion connecting pipes 2 are connected at each end of the heating surface module 1, the dispersion connecting pipe 2 penetrates a boiler top guard plate 6 and is connected with a top collecting main pipe 4, an expansion joint 3 is arranged at the penetration position, and the collecting main pipe 4 is hung on a boiler steel structure large plate beam 7 through a hanger device 5.
[0010] In the above structure, the heating surface module 1 introduces the medium in the heating surface module 1 into the collecting main pipe 4 through the dispersion connecting pipe 2, the dispersion connecting pipe 2 plays a role of conveying medium and also plays a role of suspension. When the dispersion connecting pipe 2 penetrates the boiler top guard plate 6, the expansion joint 3 is used to seal the flue gas, so that the flue gas does not leak. The number, position and type of the hanger device 5 need to be determined after pipeline stress calculation.
[0011] Since the hanger device 5 is arranged outside the flue, direct contact between the hanger device 5 and the high-temperature flue gas is avoided, so that the hanger device 5 can be made of conventional materials to meet the requirements of long-term safe and stable operation. Through the structure of the main pipe→the dispersion connecting pipe→the heating surface module, the hanger device is arranged on the main pipe, which not only meets the suspension requirements of the heating surface module, but also solves the problem of direct contact between the hanger device and the flue gas.
Claims
1. A combined cycle horizontal heat recovery boiler module hanger structure comprising a heating surface module, characterized by, The heating surface module is connected to the bottom of the dispersion connecting pipe which penetrates the boiler top cover and is connected to the top collecting main pipe which is hung on the steel structure beam of the boiler by the hanger device.
2. A combined cycle horizontal heat recovery boiler module hanger structure according to claim 1, characterized in that, Expansion joints are arranged at the penetration of the dispersion connecting pipe through the boiler top cover.
3. A combined cycle horizontal heat recovery boiler module hanger structure according to claim 1, characterized in that, Both ends of each heating surface module are connected to the dispersion connecting pipe.