CN102384464A

CN102384464A - Built-in heating device of boiler header

Info

Publication number: CN102384464A
Application number: CN2010102731234A
Authority: CN
Inventors: 周曙光; 赵朋山; 叶伟民; 阳开应
Original assignee: Shanghai Boiler Works Co Ltd
Current assignee: Shanghai Boiler Works Co Ltd
Priority date: 2010-09-06
Filing date: 2010-09-06
Publication date: 2012-03-21
Anticipated expiration: 2030-09-06
Also published as: CN102384464B

Abstract

The invention discloses a built-in heating device of a boiler header, which comprises a pipe seat connector 7 on the header 1 and is characterized in that a connecting pipe 5 is arranged in the pipe seat connector 7 and connected with a built-in pipe 3, a hole 4 is arranged on the built-in pipe 3, and steam enters the built-in pipe 3 from the connecting pipe 5 and then is ejected out of the hole 4. The built-in heating device of the boiler header has functions of stably and quickly starting or heating a boiler and the like.

Description

A kind of boiler header built-in heater

Technical field

The present invention relates to a kind of boiler header built-in heater.

Background technology

As shown in Figure 1, be the heater structural representation of traditional collection case, high temperature and high pressure steam is sprayed into directly by the base joint 9 on the inlet header case 1 of boiler water cycle system and mixes with water at low temperature.This form device causes each piping loop medium non-uniform temperature in the boiler water cycle system usually because of high temperature and high pressure steam does not fully mix with water at low temperature, and the temperature difference is bigger, and it is undesirable that boiler starts effect fast.There is the bigger temperature difference because of spraying into steam in while with the interior medium of collection case, causes the header pipe joint porch bigger thermal stress of generation and crackle occurs.

Summary of the invention

The object of the invention provides a kind of boiler header built-in heater, solves that boiler starts stably fast or functions such as radiator.Technical scheme is following:

A kind of boiler header built-in heater; Comprise the base joint 7 of collection on the case 1, it is characterized in that: be provided with in the said base joint 7 and take over 5, take over 5 and link to each other with built-in pipe 3; Built-in pipe 3 is provided with hole 4, and steam gets into 4 ejections from the hole of built-in pipe 3 backs from taking over 5.

The direction in hole 4 faces the perforate of collection case fairlead on the collection case.

The quantity of fairlead pipe joint 10 and internal diameter are big or small consistent or be associated on the perforate quantity in hole 4 and perforate size and the collection case 1.

Take over 5 and take over 6 between be to be threaded, take over 6 through inner sleeve pipe joint 8 with collect case on base joint 7 be connected.Take over 5 and take over 6 between be threaded, make install and maintenance quite convenient.Adapter 5 also can be one with adapter 6.Adapter 6 also can be one with inner sleeve pipe joint 8.

The header pipe joint that base joint 7 can be integrated on adapter 6, inner sleeve pipe joint 8 and the collection case is cast member, and an end is threaded, and is connected with adapter 5.

Pipe 3 is fixed on the collection case 1 through lip block 2.

The present invention will play fast, the pipe of the function that evenly heats up is built in the boiler inlet collection case; On this pipe, have the hole that faces collection case fairlead perforate direction; Inner sleeve structure through being threaded connection is introduced external high temperature and high pressure steam in the built-in pipe; Fully mix with water at low temperature in the inlet header case; The part high temperature and high pressure steam flows through the hole that faces collection case fairlead direction and directly the stove water in the collection case fairlead system is heated, and makes that each piping loop medium temperature is rapidly heated in the water circulation system, reaches finally that boiler starts rapidly or parameters needed such as radiator.The present invention also has following advantage:

1. the pipe joint that sprays into high temperature and high pressure steam adopts the sleeve-type connector form of band inner sleeve, avoids collecting the case inside and outside wall and forms the big temperature difference, effectively reduces the thermal stress of collection case, guarantees inlet header case security of operation;

2. guarantee that adjacent stove heating system is safe and reliable, the cycle in service life is long;

3. the boiler header built-in heater adopts the override formats that is threaded, and it is succinctly convenient to install;

4. heating pipe built-in is confirmed corresponding perforate according to the layout of inlet header case fairlead joint; Can be by designing requirement effectively with in each loop heating surface of the high temperature and high pressure steam rapid and uniform guide water circulatory system; Effectively reach boiler and start effect fast, certain economic benefits is arranged;

5. the boiler header built-in heater assembles with the inlet header case in manufacturing firm and dispatches from the factory, can be not improper because of transporting, factor such as installation and heat treatment is out of shape.

Description of drawings

Fig. 1 is traditional collection case heater structural representation;

Fig. 2 the present invention collects case heater structural representation;

Fig. 3 heater detail drawing;

Fig. 4 schematic perspective view of the present invention

Description of reference numerals: 1-collection case; 2-cushion block; 3-built-in pipe; 4-hole (direction of perforate faces the perforate of fairlead on the collection case); 5-take over; 6-take over; 7-base joint; 8-inner sleeve pipe joint; 9-traditional heating device steam inlet tube base joint; 10-collection case fairlead pipe joint.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation, but the present invention is not limited to following embodiment.

Like Fig. 2, shown in Figure 3, the built-in pipe 3 that will have hole 4 is built in the boiler inlet collection case 1.On the built-in pipe 3 on the perforate quantity in hole 4 and perforate size and the collection case 1 quantity and the internal diameter of fairlead pipe joint 10 big or small consistent or be associated; Be that perforate quantity and the quantity of fairlead pipe joint 10 in hole 4 is associated or consistent, as, 1 corresponding 2 pipe joint in hole, perhaps 2 corresponding 1 pipe joints in hole are preferred, 1 pipe joint of 1 hole correspondence; It is perhaps consistent that the perforate in hole 4 size and internal diameter of pipe joint size are associated, and is 2 times, 1.5 times, 1 times, 0.5 times of internal diameter of pipe joint or the like like the perforate size diameter in hole 4.The direction X in hole 4 °, Y ° and Z ° (implication of X °, Y °, Z ° representative is seen Fig. 2) also have certain requirement; Will face the perforate of collection case fairlead on the collection case exactly, preferred, the center line in hole 4 is through the projected centre point of fairlead center line on the collection chamber interior wall; See accompanying drawing 2; Help part steam like this and can add the turbulivity in the bassoon, the rate of heat exchange of stove water and steam in the quickening fairlead system successfully to get in the fairlead system than slight drag.The stove water of collection in the case and the stove water in the fairlead simultaneously with the process of steam source generation heat and mass, can improve firing rate greatly, shorten and heat the required time.Built-in pipe 3 is fixed on the collection case 1 through lip block 2, and fixing built-in pipe 3 impacts built-in pipe 3 and the vibration of formation when also having contained the steam admission effectively.Take over 5 and take over 6 between be to be threaded, be convenient to install and make.Adapter 6 is welded through base joint 7 on inner sleeve pipe joint 8 and the collection case mutually, has avoided collection case inside and outside wall to form the temperature difference greatly like this, effectively reduces the thermal stress of collection case, guarantees inlet header case security of operation.Adapter 5 is littler with the internal diameter of collection case perforate than base joint 7 internal diameters with adapter 6 external diameters, and gapped between this, the gap is about 5-50mm; Preferred gap is at 10-30mm; The inside is full of stove water, and making has the heat buffer zone between vapours and the collection case, effectively reduces the thermal stress of collection case.

As shown in Figure 4, simultaneously,, will there be more steam to get into the collection case so stove water will be heated if increase the quantity of steam intake, can make heats better.

Below only expressed embodiment of the present invention, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the patent of invention scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.

Claims

1. boiler header built-in heater; Comprise the base joint (7) on the collection case (1); It is characterized in that: be provided with adapter (5) in the said base joint (7); Take over (5) and link to each other with built-in pipe (3), built-in pipe (3) is provided with hole (4), and high-temperature high-pressure medium sprays from perforate (4) after (5) get into built-in pipe (3) from taking over.

2. a kind of boiler header built-in heater according to claim 1 is characterized in that: the direction of hole (4) faces the perforate of collection case fairlead on the collection case.

3. a kind of boiler header built-in heater according to claim 2 is characterized in that: it is big or small consistent or be associated that the perforate quantity of hole (4) and perforate size and collection case (1) are gone up quantity and the internal diameter of fairlead pipe joint (10).

4. a kind of boiler header built-in heater according to claim 3 is characterized in that: taking over (5) and taking between (6) is to be threaded, and base joint (7) is connected on taking over (6) and collecting case.

5. a kind of boiler header built-in heater according to claim 4 is characterized in that: adapter (6) is connected through base joint (7) on inner sleeve pipe joint (8) and the collection case.

6. a kind of boiler header built-in heater according to claim 5; It is characterized in that: take over (6), inner sleeve pipe joint (8) and collect the header pipe joint that base joint (7) is integrated on the case; One end is threaded, and is threaded with adapter (5).

7. a kind of boiler header built-in heater according to claim 5 is characterized in that: pipe (3) is fixed on the collection case (1) through lip block (2).