CN210601679U

CN210601679U - Laval nozzle type sound wave conduction pipe

Info

Publication number: CN210601679U
Application number: CN201921000787.6U
Authority: CN
Inventors: 张志华; 张鲁宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-05-22
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a laval nozzle formula sound wave conduction pipe, including frame base, sound wave entry, sound wave conduction pipe main part, fixed bolster, strengthening rib, sound wave export and top support, sound wave conduction pipe main part top install top support, the sound wave entry set up sound wave conduction pipe main part one side, sound wave entry below install the fixed bolster, sound wave conduction pipe main part on install the strengthening rib, sound wave conduction pipe main part below be equipped with the sound wave export, the frame pedestal mounting be in sound wave export below. Compared with the prior art, the utility model the advantage lie in: simple structure is exquisite, does not have wearing parts, long service life, need not manual monitoring operation, practicality are strong.

Description

Laval nozzle type sound wave conduction pipe

Technical Field

The utility model relates to a boiler dust removal field specifically indicates a Laval nozzle formula sound wave conduction pipe.

Background

The boiler is used as an energy conversion device and is divided into a hot water boiler for supplying hot water and a steam boiler for generating steam, wherein the hot water boiler converts chemical energy in fuel and heat energy generated by combustion into hot water containing a large amount of heat energy and supplies the hot water and the steam to industrial production or resident life, the steam boiler is mainly used for thermal power stations, mining industry and manufacturing industry, the steam is converted into mechanical energy through a power device and is input into a generator to be converted into electric energy, and a preheater is an indispensable component in the whole boiler device.

The air preheater is an unavailable part in the existing boiler overall equipment and mainly comprises a tubular air preheater and a rotary air preheater, wherein the rotary air preheater is the most widely applied power station, the rotary air preheater transfers heat in a regeneration mode, the principle is that smoke and air alternately flow through a heating surface, when the smoke flows through, the heat is transferred to the heating surface from the smoke, the temperature of the heating surface is increased, and heat is accumulated; when the air flows through again, the heat receiving surface gives off the accumulated heat to the air.

The rotary air preheater has the problem of relatively large resistance, and the main reason is caused by excessive dust deposition, namely, the smoke is disturbed by airflow to carry dust particles and deposit on a heating surface to form a dust deposition layer, water vapor carried in the smoke is condensed at low temperature, the dust deposition is very easy, loose dust deposition can easily reach dynamic balance, once the dust deposition is generated, the dust deposition can be washed off by the large dust particles in the smoke, the fire can be seriously extinguished, the sticky dust deposition can also cause the conditions of low-temperature corrosion and the like, and due to the characteristics of the self structure of the rotary air preheater, the corrugated heat exchange element has small gaps and more layers, sulfur-containing dust is in a melting state at low temperature, the viscosity is increased, and the dust is very easy to scale and accumulate on the surface.

The traditional soot blowing mode used in the market at present is to blow by using a steam soot blower, and has a plurality of defects.

Therefore, it is imperative to design a laval nozzle type acoustic wave transmission tube.

In order to reduce smoke resistance, reduce fan load pressure and ensure normal work of a hearth, long-time purging is needed, energy is excessively consumed, heat exchange elements are damaged, and the steam-blowing maintenance amount is greatly increased

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that adopt steam soot blower to sweep the dust at present mostly, have a great deal of drawback: (1) the area limitation exists during purging, the purging cannot be performed to a scaling area, and the blowing loss of a heat exchange original piece is serious; (2) in order to reduce smoke resistance, reduce fan load pressure and ensure normal work of a hearth, long-time purging is forced, energy is excessively consumed, heat exchange elements are damaged, and the steam-blowing maintenance amount is greatly increased.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a laval nozzle formula sound wave conduction pipe, includes frame base, sound wave entry, sound wave conduction pipe main part, fixed bolster, strengthening rib, sound wave export and top support, sound wave conduction pipe main part top install top support, the sound wave entry set up sound wave conduction pipe main part one side, sound wave entry below install the fixed bolster, sound wave conduction pipe main part on install the strengthening rib, sound wave conduction pipe main part below be equipped with the sound wave export, frame base install sound wave export below.

Compared with the prior art, the utility model the advantage lie in: different from the traditional steam soot blower, the method of connecting the Laval nozzle type sound wave conduction pipe with the sound wave soot blower is adopted, sound waves with certain intensity and energy are sent to various areas with ash and slag in a boiler in operation, air molecules and dust particles in the areas are oscillated under the action of the sound energy, and the dust particles are damaged or prevented from being deposited on the surface of a heating surface pipeline and are always in a suspension fluidization state and taken away by smoke.

As an improvement, the sound wave conduction pipe main body is fixed on the rack base in a welding mode.

As an improvement, the top support is connected with the sound wave conduction pipe main body in a welding fixing mode.

As an improvement, the main body of the sound wave conduction pipe is two sound wave conduction pipes which are symmetrically designed.

As an improvement, the sound wave inlet is connected with a sound wave soot blower.

As an improvement, the reinforcing ribs are fixed on the sound wave conduction pipe main body in a welding mode.

As an improvement, the rack base is provided with a plurality of bolt holes.

Drawings

Fig. 1 is a schematic structural view of a laval nozzle type acoustic wave transmission tube.

Fig. 2 is a schematic perspective view of a laval nozzle type acoustic wave transmission tube.

As shown in the figure: 1. the sound wave transmission device comprises a rack base, 2 sound wave inlets, 3 sound wave conduction pipe bodies, 4 fixing supports, 5 reinforcing ribs, 6 sound wave outlets, 7 top supports.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses when concrete implementation, a laval nozzle formula sound wave conduction pipe, including frame base 1, sound wave entry 2, sound wave conduction pipe main part 3, fixed bolster 4, strengthening rib 5, sound wave export 6 and

top support

7, 3 tops of sound wave conduction pipe main part install top support 7, sound wave entry 2 set up sound wave conduction pipe main part 3 one side, sound wave entry 2 below install fixed bolster 4, sound wave conduction pipe main part 3 on install strengthening rib 5, 3 below of sound wave conduction pipe main part be equipped with sound wave export 6, frame base 1 install sound wave export 6 below.

The sound wave conduction pipe main body 3 is fixed on the frame base 1 in a welding mode.

The top support 7 is connected with the sound wave conduction tube main body 3 in a welding fixing mode.

The sound wave conduction pipe main body 3 is two sound wave conduction pipes which are symmetrically designed.

The sound wave inlet 2 is connected with a sound wave soot blower.

The reinforcing ribs 5 are fixed on the sound wave conduction pipe main body 3 in a welding mode.

The rack base 1 is provided with a plurality of bolt holes.

The utility model discloses a theory of operation: the sound wave inlet is connected with the sound wave soot blower, the rack base internally provided with the sound wave outlet is connected with the smoke generation position of the air preheater, the sound wave inlet can cover all corrugated heat exchange elements of the air preheater, the sound wave soot blower emits sound waves, the sound waves enter the sound wave conduction pipe main body through the sound wave inlet, according to the structural principle of the laval nozzle, the sound waves are accelerated twice, and the sound wave soot blower has quite large energy and speed when passing through the sound wave outlet and is enough to reach all scaling areas of the air preheater.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless a limitation is explicitly stated.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. The utility model provides a Laval nozzle formula sound wave conduction pipe, includes frame base (1), sound wave entry (2), sound wave conduction pipe main part (3), fixed bolster (4), strengthening rib (5), sound wave export (6) and top support (7), its characterized in that: acoustic wave conduction pipe main part (3) top install top support (7), acoustic wave entry (2) set up acoustic wave conduction pipe main part (3) one side, acoustic wave entry (2) below install fixed bolster (4), acoustic wave conduction pipe main part (3) on install strengthening rib (5), acoustic wave conduction pipe main part (3) below be equipped with acoustic wave export (6), frame base (1) install acoustic wave export (6) below.

2. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the sound wave conduction pipe main body (3) is fixed on the rack base (1) in a welding mode.

3. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the top support (7) is connected with the sound wave conduction pipe main body (3) in a welding fixing mode.

4. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the sound wave conduction pipe main body (3) is two sound wave conduction pipes which are symmetrically designed.

5. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the sound wave inlet (2) is connected with a sound wave soot blower.

6. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the reinforcing ribs (5) are fixed on the sound wave conduction pipe main body (3) in a welding mode.

7. The laval nozzle type acoustic wave conducting tube as set forth in claim 1, wherein: the rack base (1) is provided with a plurality of bolt holes.