CN102588942A

CN102588942A - Steam pocket support structure of gas turbine exhaust-heat boiler

Info

Publication number: CN102588942A
Application number: CN201210042009XA
Authority: CN
Inventors: 唐国勇; 朱大锋
Original assignee: Wuxi Huaguang Boiler Co Ltd
Current assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Priority date: 2012-02-23
Filing date: 2012-02-23
Publication date: 2012-07-18
Anticipated expiration: 2032-02-23
Also published as: CN102588942B

Abstract

The invention provides a steam pocket support structure of a gas turbine exhaust-heat boiler. The steam pocket support structure is simple and reliable in structure and easily implemented, not only can ensure the effective support of a steam pocket, but also avoids the defects of welding cracks at a junction of the steam pocket and the support and the like. The steam pocket support structure comprises the steam pocket, a steam pocket support beam, and at least two steam pocket supports arranged along a length direction between the steam pocket and the steam pocket support beam, and is characterized in that the steam pocket support comprises a saddle plate and a bottom plate, the saddle plate is fixedly connected with the bottom plate through a connecting structure, the center and two sides of the saddle plate are respectively provided with locating holes, the position of the steam pocket corresponding to each locating hole is welded with a locating steel plate, a convex part of the locating steel plate is inserted in the locating hole in a matched manner, an external edge surface of the steam pocket is adhered with an inner edge surface of the saddle plate, lower parts of two sides of the bottom plate are welded with lining plates, and each lining plate is pressed and installed on the upper end surface of a backing.

Description

The drum seat structure of combustion machine waste heat boiler

Technical field

The present invention relates to fire the technical field of structures of machine waste heat boiler, be specially the drum seat structure of combustion machine waste heat boiler.

Background technology

Gas steam combined cycle for power generation is a kind of very rapidly efficient, low generation technology that pollutes of development in the world today; It has become the first-selected system of newly-built Thermal Power Station of developed country, has the generating efficiency height, and peak modulation capacity is strong; The unit power small investment; Advantages such as the construction period is short, and floor space is little, and pollution level is low.The gas steam combined cycle for power generation system is made up of gas turbine generating system and Boiler Steam wheel machine power generating system.Combustion machine waste heat boiler is the key equipment of Boiler Steam wheel machine power generating system, and the drum of combustion machine waste heat boiler is one of critical piece of waste heat boiler.Conventional drum bearing is connected with drum and mostly adopts Type of Welding, owing to the thermal (temperature difference) stress between drum in boiler running process and bearing makes the weld zone defectives such as crackle often occur, is unfavorable for that the long-term safety of boiler is moved.

Summary of the invention

To the problems referred to above, the invention provides the drum seat structure of combustion machine waste heat boiler, it is simple and reliable for structure, is convenient to implement, and can either guarantee effective support of drum, has avoided the defectives such as weld crack of drum and bearing junction again.

The drum seat structure of combustion machine waste heat boiler; Its technical scheme is such: it comprises drum, drum brace summer; Length direction between said drum and the drum brace summer is furnished with at least two drum bearings, it is characterized in that: said drum bearing comprises saddle plate, base plate, and said saddle plate is fastenedly connected said base plate through syndeton; Center, the both sides of said saddle plate are respectively arranged with locating hole; The position of the corresponding said locating hole of said drum is welded with fixing steel plate, and the male part of said fixing steel plate is divided to cooperate and is plugged in the said locating hole and the fit inner edge surface of said saddle plate of the outer edge surface of said drum, and two side lower parts of said base plate are welded with underboarding; Said underboarding press-fits the upper surface in liner; The lower surface of said liner is installed in the upper plane groove of sphere liner, and the bottom sphere of said sphere liner is close to the top conical surface of conical surface liner, and the bottom surface of said conical surface liner is welded to connect said drum brace summer.

It is further characterized in that: said syndeton specifically comprises side pipe, central tube; The two ends of said side pipe are respectively upper head plate, bottom plate; The upper and lower end of upper latch is welded to connect said saddle plate, upper head plate respectively, and the upper and lower end of bottom latch is welded to connect said bottom plate, base plate respectively; The upper and lower end of said central tube is welded to connect said saddle plate, base plate respectively;

The bottom of said underboarding is welded with the stainless steel liner plate, and the lower surface of said stainless steel liner plate press-fits the upper surface in said liner;

The central lower of said base plate is welded with the middle gasket base plate; The bottom of said middle gasket base plate is welded with middle part stainless steel liner plate; The lower surface of said middle part stainless steel liner plate press-fits the upper surface in middle liner; The lower surface of said middle liner is installed in the upper plane groove of middle part sphere liner, and the bottom sphere of said middle part sphere liner is close to the top conical surface of middle part conical surface liner, and the bottom surface of said middle part conical surface liner is welded to connect said drum brace summer.

After adopting said structure of the present invention, drum is plugged in the said locating hole through fixing steel plate, and the drum seat structure does not directly weld with drum; And two side lower parts of the base plate of drum bearing are welded with underboarding, and underboarding press-fits the upper surface in liner, and the lower surface of liner is installed in the upper plane groove of sphere liner; The bottom sphere of said sphere liner is close to the top conical surface of conical surface liner; The bottom surface of said conical surface liner is welded to connect said drum brace summer, and through sphere liner, conical surface liner, drum is shelved on the drum seat structure can the free wxpansion displacement; Simple for structure; Be convenient to implement, can either guarantee effective support of drum, avoided the defectives such as weld crack of drum and bearing junction again.

Description of drawings

Fig. 1 is a front view structural representation of the present invention;

Fig. 2 is a left view structural representation of the present invention;

Fig. 3 is the local structure for amplifying sketch map in the A place of Fig. 2;

Fig. 4 is the local structure for amplifying sketch map in the B place of Fig. 2;

Fig. 5 is the local structure for amplifying sketch map in the C place of Fig. 2.

The specific embodiment

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5; It comprises drum 1, drum brace summer 2; Length direction between drum 1 and the drum brace summer 2 is furnished with at least two drum bearings 24, and drum bearing 24 comprises saddle plate 3, base plate 4, and saddle plate 3 is fastenedly connected base plate 4 through syndeton; The center of saddle plate 3, both sides are respectively arranged with locating hole 5; The position of drum 1 corresponding locating hole 5 is welded with fixing steel plate 6, and the male part of fixing steel plate 6 divides cooperation to be plugged in the locating hole 5 and the inner edge surface of the outer edge surface applying saddle plate 3 of drum 1, and two side lower parts of base plate 4 are welded with underboarding 7; Underboarding 7 press-fits in the upper surface of liner 8; The lower surface of liner 8 is installed in the upper plane groove 10 of sphere liner 9, and the bottom sphere of sphere liner 9 is close to the top conical surface of conical surface liner 11, and the bottom surface of conical surface liner 11 is welded to connect drum brace summer 2.

Syndeton specifically comprises side pipe 12, central tube 13; The two ends of side pipe 12 are respectively upper head plate 14, bottom plate 15; The upper and lower end of upper latch 16 is welded to connect saddle plate 3, upper head plate 14 respectively, and the upper and lower end of bottom latch 17 is welded to connect bottom plate 15, base plate 4 respectively; The upper and lower end of central tube 13 is welded to connect saddle plate 3, base plate 4 respectively;

The bottom of underboarding 7 is welded with stainless steel liner plate 18, and the lower surface of stainless steel liner plate 18 press-fits in the upper surface of liner 11;

The central lower of base plate 4 is welded with middle gasket base plate 19; The bottom of middle gasket base plate 19 is welded with middle part stainless steel liner plate 20; The lower surface of middle part stainless steel liner plate 20 press-fits in the upper surface of middle liner 21; The lower surface of middle liner 21 is installed in the upper plane groove of middle part sphere liner 22, and the bottom sphere of middle part sphere liner 22 is close to the top conical surface of middle part conical surface liner 23, and the bottom surface of middle part conical surface liner 23 is welded to connect drum brace summer 2.

Claims

1. fire the drum seat structure of machine waste heat boiler; It comprises drum, drum brace summer; Length direction between said drum and the drum brace summer is furnished with at least two drum bearings, it is characterized in that: said drum bearing comprises saddle plate, base plate, and said saddle plate is fastenedly connected said base plate through syndeton; Center, the both sides of said saddle plate are respectively arranged with locating hole; The position of the corresponding said locating hole of said drum is welded with fixing steel plate, and the male part of said fixing steel plate is divided to cooperate and is plugged in the said locating hole and the fit inner edge surface of said saddle plate of the outer edge surface of said drum, and two side lower parts of said base plate are welded with underboarding; Said underboarding press-fits the upper surface in liner; The lower surface of said liner is installed in the upper plane groove of sphere liner, and the bottom sphere of said sphere liner is close to the top conical surface of conical surface liner, and the bottom surface of said conical surface liner is welded to connect said drum brace summer.

2. the drum seat structure of combustion machine waste heat boiler according to claim 1; It is characterized in that: said syndeton specifically comprises side pipe, central tube; The two ends of said side pipe are respectively upper head plate, bottom plate; The upper and lower end of upper latch is welded to connect said saddle plate, upper head plate respectively, and the upper and lower end of bottom latch is welded to connect said bottom plate, base plate respectively; The upper and lower end of said central tube is welded to connect said saddle plate, base plate respectively.

3. the drum seat structure of combustion machine waste heat boiler according to claim 1 and 2 is characterized in that: the bottom of said underboarding is welded with the stainless steel liner plate, and the lower surface of said stainless steel liner plate press-fits the upper surface in said liner.

4. the drum seat structure of combustion machine waste heat boiler according to claim 3; It is characterized in that: the central lower of said base plate is welded with the middle gasket base plate; The bottom of said middle gasket base plate is welded with middle part stainless steel liner plate; The lower surface of said middle part stainless steel liner plate press-fits the upper surface in middle liner; The lower surface of said middle liner is installed in the upper plane groove of middle part sphere liner, and the bottom sphere of said middle part sphere liner is close to the top conical surface of middle part conical surface liner, and the bottom surface of said middle part conical surface liner is welded to connect said drum brace summer.