CN219624547U - Modularized energy saver for petrochemical waste heat furnace - Google Patents

Abstract

The utility model particularly relates to a modularized energy saver for a petrochemical waste heat furnace, which comprises an end sealing box, end tube plates, a serpentine fin tube, a middle tube support, a profile steel frame, a smoke inlet, a smoke outlet, an inlet header and an outlet header, wherein the end sealing box is fixed on one side of the end tube plates, the elbow part of the serpentine fin tube is positioned in the end sealing box, the serpentine fin tube is sealed and fixed on the end tube plates and the middle tube support at two sides through sleeves, the end tube plates and the middle tube support are both fixed in the profile steel frame, two ends of the serpentine fin tube are respectively welded on the inlet header and the outlet header to form a compression member, the compression member is integrally fixed on the profile steel frame to be used as a modularized component, the smoke inlet is arranged above the profile steel frame, the smoke outlet is arranged below the profile steel frame, and a lifting lug is fixed above the profile steel frame. The whole assembly and modularization delivery are realized, the product quality is improved, and the installation period is shortened. The modular expansion assembly can be performed to expand the heated area.

Description

Modularized energy saver for petrochemical waste heat furnace

Technical Field

The utility model relates to the technical field of gas boiler energy conservation, in particular to a modularized energy conservation device for a petrochemical waste heat furnace.

Background

The energy saver is also called an economizer and is arranged in a tail flue of the boiler, and boiler feed water is heated into saturated water under the drum pressure by utilizing waste heat in the flue gas, so that the energy saver is used for absorbing the heat of the flue gas, reducing the temperature of discharged flue gas, improving the heat efficiency and saving energy.

The waste heat furnace flue gas in the petrochemical industry has corrosiveness, the currently used energy-saving device is of a bulk structure, the field installation workload is large, the service life is short, the replacement is more frequent, and the manufacturing and replacement period is longer.

Disclosure of Invention

The utility model provides a modularized energy saver for a petrochemical waste heat furnace, which aims to solve the problems of large installation workload, short service life, more frequent replacement and longer manufacturing and replacement period of the energy saver in the prior art, wherein the energy saver is of a bulk structure.

The utility model provides a modularized energy saver for a petrochemical waste heat furnace, which comprises an end sealing box, end tube plates, a serpentine fin tube, a middle tube support, a profile steel frame, a smoke inlet, a smoke outlet, an inlet header and an outlet header, wherein the end sealing box is fixed on one side of the end tube plates, the elbow part of the serpentine fin tube is positioned in the end sealing box, the serpentine fin tube is sealed and fixed on the end tube plates and the middle tube support on two sides through sleeves, the end tube plates and the middle tube support are fixed in the profile steel frame, two ends of the serpentine fin tube are respectively welded on the inlet header and the outlet header to form a pressure receiving piece, the pressure receiving piece is integrally fixed on the profile steel frame to be used as a modularized component, the smoke inlet is arranged above the profile steel frame, the smoke outlet is arranged below the profile steel frame, and a lifting lug is fixed above the profile steel frame.

Preferably, the end seal box has a thermally insulated liner.

Preferably, the end seal box is provided with an access door hole.

Preferably, the end tube plates and the guard plates of the steel framework are provided with light casting material liners for the petrochemical furnace.

Preferably, the base tube and the fins of the serpentine fin tube are made of ND steel.

The beneficial effects of the utility model are as follows:

the energy saver is integrally assembled in a manufacturing plant, modularly leaves a factory, improves the quality of products and shortens the installation period of a construction site. The energy saver can be subjected to modularized expansion assembly, expands the heated area and provides a reference direction for non-standard equipment to standardization and integration. The base pipes and the fins of the serpentine fin pipe are made of ND steel, so that the low-temperature corrosion phenomenon of the waste heat boiler during low-load operation is effectively reduced, and the operation life of the energy saver is prolonged. The end tube plate and the steel frame guard plate are provided with the light castable lining for the petrochemical furnace, so that the corrosion of the chemical waste heat furnace flue gas to equipment is effectively avoided.

Drawings

Fig. 1: a schematic diagram of the whole structure of a modularized energy saver for a petrochemical waste heat furnace,

fig. 2: another overall structural schematic of a modular economizer for petrochemical waste heat furnaces,

fig. 3: partial structure of serpentine fin tube.

The marks in the figure: the end sealing box 1, the end tube plate 2, the serpentine fin tube 3, the middle tube support 4, the profile steel frame 5, the smoke inlet 6, the smoke outlet 7, the inlet header 8, the outlet header 9, the lifting lug 10, the heat insulation lining 11, the access door hole 12, the light casting material lining 13 for the petrochemical furnace, the base tube 300 and the fins 301.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Examples

As shown in fig. 1-3, the modularized economizer for the petrochemical waste heat furnace provided by the embodiment comprises an end seal box 1, an end tube plate 2, a serpentine fin tube 3, a middle tube support 4, a section steel frame 5, a smoke inlet 6, a smoke outlet 7, an inlet header 8, an outlet header 9 and a lifting lug 10, wherein the end seal box 1 is fixed on one side of the end tube plate 2, an elbow part of the serpentine fin tube 3 is positioned in the end seal box 2, the serpentine fin tube 3 is fixed on the end tube plate 2 and the middle tube support 4 on two sides through sleeve sealing, the end tube plate 2 and the middle tube support 4 are fixed in the section steel frame 5, two ends of the serpentine fin tube 3 are welded on the inlet header 8 and the outlet header 9 respectively, the pressed part is integrally fixed on the section steel frame 5 as a modularized component, the smoke inlet 6 is arranged above the section steel frame 5, the smoke outlet 7 is arranged below the section steel frame 5, and the lifting lug 10 is fixed on the section steel frame 5, and the lifting lug 10 is used for integrally lifting the modularized component. The smoke inlet 6 and the smoke outlet 7 of the modularized component of the embodiment, the inlet header 8 and the outlet header 9 can be expanded and assembled, so that the heated area is expanded.

As a preferred embodiment of the present embodiment, the end seal box 1 has a thermal insulation liner 11.

As a preferred implementation manner of this embodiment, the end seal box 1 is provided with two access door holes 12, where the number of the access door holes 12 is two.

As a preferred embodiment of the present example, the end tube plate 1 and the guard plates of the section steel frame 5 are provided with a lightweight casting liner 13 for petrochemical furnaces. The lightweight casting material lining for the petrochemical furnace adopts high alumina cement: ceramsite: vermiculite is prepared according to the volume ratio of 1:2:4.

As a preferred implementation manner of the embodiment, the base tube 300 and the fins 301 of the serpentine fin tube 3 are made of ND steel, so that the low-temperature corrosion phenomenon of the waste heat boiler during low-load operation is effectively slowed down, and the operation life of the energy saver is prolonged. The serpentine fin tube 3 is continuously bent and processed by adopting a serpentine tube production line, so that elbow welding is reduced. The tube bundles of the serpentine fin tubes 3 are arranged in sequence, and water in the tube bundles is reversely and vertically crossed with the flow direction of the flue gas of the waste heat furnace.

In the embodiment, a serpentine fin tube 3 which is continuously bent by a serpentine tube production line is fixed on tube plates 2 at two side end parts and a middle tube support 4, the periphery of the serpentine fin tube 3 adopts an anti-corrosion light castable lining, and the serpentine fin tube is integrally arranged on a modularized profile steel frame 5. The modular structure is adopted, and the modular structure can be freely combined in series and parallel according to the tonnage of the boiler in an installation site, so that the problems of long design, manufacture and installation period and serious abrasion and corrosion of the end part of the coiled pipe of the existing energy saver for the petrochemical waste heat boiler are solved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A modularization economizer for petrochemical waste heat stove, its characterized in that: including tip seal box, tip tube sheet, snakelike finned tube, middle part pipe support, shaped steel frame, inlet, outlet, import header, outlet header, lug, the tip seal box is fixed in tip tube sheet one side, and the elbow part of snakelike finned tube is located the tip seal box, the snakelike finned tube passes through the sleeve pipe to be sealed to be fixed in both sides tip tube sheet and middle part pipe support on, tip tube sheet, middle part pipe support are all fixed in shaped steel frame, the both ends of snakelike finned tube weld respectively on inlet header and outlet header and constitute the pressurized piece, and the pressurized piece is wholly fixed as modularized part on shaped steel frame, shaped steel frame top has the inlet, and the below has the outlet, the lug is fixed in shaped steel frame's top.

2. The modular economizer for a petrochemical waste heat furnace of claim 1, wherein: the end seal box has a thermal insulation liner.

3. The modular economizer for a petrochemical waste heat furnace of claim 1, wherein: and an access door hole is formed in the end sealing box.

4. The modular economizer for a petrochemical waste heat furnace of claim 1, wherein: and the end tube plates and the guard plates of the steel frame are provided with light pouring material liners for the petrochemical furnace.

5. The modular economizer for a petrochemical waste heat furnace of claim 1, wherein: and the base tube and the fins of the serpentine fin tube are made of ND steel.