CN218270349U

CN218270349U - Smoke heat exchanger header with snooping maintenance device

Info

Publication number: CN218270349U
Application number: CN202222543089.9U
Authority: CN
Inventors: 张天翼; 王港
Original assignee: Hengyuan Intelligent Technology Shandong Co ltd
Current assignee: Hengyuan Intelligent Technology Shandong Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-10
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a gas heater collection case with peep and overhaul device, include: the collection case, hand hole takeover, flange, blind flange, handle. The hand hole connecting pipe is vertically fixed on the top surface of the rear section of the header, and inner cavities of the hand hole connecting pipe and the header are communicated. The flange is fixed on the upper port of the hand hole connecting pipe, and the blind flange is detachably connected to the flange through a fastener, so that the upper port of the hand hole connecting pipe is sealed. The handle is fixed on the upper surface of the blind flange to facilitate the movement of the blind flange. The utility model discloses a gas heater collection case with snoop maintenance device is through setting up the hand hole and taking over on the collection case, and whether the staff can open behind the blind flange and take over through the hand hole and conveniently observe the collection incasement portion and exist foreign matters such as welding slag, iron rust, if there is the accessible the hand hole is taken over and is stretched into anchor clamps and take out the foreign matter, has avoided destructive the demolition. After the foreign matter is removed, the top end of the hand hole connecting pipe is sealed through the blind flange, and the sealing performance of the header is ensured.

Description

Smoke heat exchanger header with snooping maintenance device

Technical Field

The utility model relates to a technical field is handled to the flue gas, especially relates to a gas heater collection case with peep and overhaul device.

Background

The thermal power plant is one of the most important power supply places in China at present, the boiler is one of the most important devices of the thermal power plant, and the operation stability of the boiler plays an important role in stable operation of the power plant. However, during the actual operation of the boiler in the thermal power plant, various faults occur occasionally; it can be said that the causes of boilers in various accidents of thermal power plants are most important, and the failure of the heating surface of the boiler is a significant cause of boiler accidents. Therefore, each power plant has higher and higher attention to the problem of boiler heating surface failure, and has very important practical significance on how to effectively prevent the boiler heating surface failure.

The boiler equipment mainly comprises flue gas heat exchangers of a water cooled wall, a superheater, an economizer, a reheater and the like of the boiler. Flue gas heat exchangers such as a superheater, an economizer, a reheater and the like are all provided with a header, the material of the header is steel, welding slag, iron rust and the like easily exist in the manufacturing and processing processes of the steel, water quality is influenced, and in addition, when the flue gas heat exchangers run, a water inlet system can damage the heat exchange tubes, so that great potential safety hazards exist. However, the existing maintenance means can not observe and clean the sundries in the header, and only can destructively remove the sundries if an accident occurs. The normal power generation of the power plant can be seriously influenced, and certain economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas heater collection case with device is overhauld in peeping, it can conveniently realize examining the inside purpose of carrying out the inspection to the collection case of devices such as low temperature economizer, flue gas reheater, need not to carry out destructive demolishment. In order to achieve the above object, the technical solution of the present invention is as follows.

A flue gas heat exchanger header with snooping maintenance device, comprising: the collection case, hand hole takeover, flange, blind flange, handle. Wherein: the hand hole connecting pipe is vertically fixed on the top surface of the rear section of the header, and inner cavities of the hand hole connecting pipe and the header are communicated. The flange is fixed on the upper port of the hand hole connecting pipe, and the blind flange is detachably connected to the flange through a fastener, so that the upper port of the hand hole connecting pipe is sealed. The handle is fixed on the upper surface of the blind flange so as to facilitate the movement of the blind flange.

Further, the straight line distance between the center of the lower port of the hand hole connecting pipe and the bottom surface of the header is not smaller than the diameter of the hand hole connecting pipe.

Further, the fastening piece comprises a bolt and a nut, and the bolt penetrates through the flange and the blind flange in sequence and then is in threaded connection with the nut, so that the flange and the blind flange are fastened together.

Further, a first washer is arranged between the head of the bolt and the lower surface of the flange. Optionally, the first gasket comprises a rubber gasket or the like.

Further, a second washer is arranged between the nut and the upper surface of the blind flange. Optionally, the second washer comprises a spring washer or the like.

Further, a flange gasket 10 is provided between the flange and the blind flange.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a gas heater collection case with snoop maintenance device is through setting up the hand hole and taking over on the collection case, and whether the staff can open behind the blind flange and take over through the hand hole and conveniently observe the collection incasement portion and exist foreign matters such as welding slag, iron rust, if there is the accessible the hand hole is taken over and is stretched into anchor clamps and take out the foreign matter, has avoided destructive the demolition. After the foreign matter is removed, the top end of the hand hole connecting pipe is sealed through the blind flange, and the sealing performance of the header is ensured.

Drawings

Fig. 1 is a front view of a gravity assisted heat pipe low temperature economizer in the following embodiment.

Fig. 2 is a top view of a gravity assisted heat pipe low temperature economizer in the following embodiment.

Fig. 3 is a right side view (cut away) of the gravity type heat pipe low-temperature economizer in the following embodiment.

The labels in the figures represent: 1-header, 2-hand hole connecting pipe, 3-flange, 4-blind flange, 5-handle, 6-bolt, 7-nut, 8-first washer, 9-second washer and 10-flange gasket.

Detailed Description

It should be noted that in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and do not limit the structure, but merely facilitate the description of the present invention, and do not indicate or imply that the device or element being referred to needs to have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The technical solution of the present invention will be further explained with reference to the drawings and examples of the specification.

Referring to fig. 1 and fig. 3, there is illustrated a flue gas heat exchanger header with a snooping and overhauling device, which mainly comprises: the device comprises a header 1, a hand hole connecting pipe 2, a flange 3, a blind flange 4 and a handle 5. Wherein: the header 1 is horizontally arranged, the hand hole connecting pipe 2 is vertically fixed on the top surface of the rear section of the header 1, and inner cavities of the two are communicated. The flange 3 is fixed on the last port of hand hole takeover 2, blind flange 4 can dismantle the connection on flange 3 through the fastener, the fastener includes bolt 6 and nut 7, bolt 6 pass in proper order behind flange 3 and the blind flange 4 with nut 7 threaded connection, thereby will flange 3 and blind flange 4 fasten in an organic whole, make the last port of hand hole takeover 2 is sealed by blind flange 4. The handle 5 is fixed on the upper surface of the blind flange 4 to facilitate the movement of the blind flange 4. Through set up hand hole takeover 2 on collection case 1, whether the staff can open behind the blind flange 4 and take over 2 through hand hole and conveniently observe the collection case 1 inside foreign matter such as welding slag, iron rust, if there is the accessible hand hole takeover 2 stretches into anchor clamps and takes out the foreign matter, has avoided the destructive removal. After the foreign matter is removed, the top end of the hand hole connecting pipe 2 is sealed through the blind flange 4, and the sealing performance of the header 1 is ensured.

In another embodiment, in the fume heat exchanger header with the snooping maintenance device, the straight line distance between the center of the lower port of the hand hole connecting pipe 2 and the bottom surface of the header 1 is not less than the diameter of the hand hole connecting pipe 2. The pipe diameter of the hand hole connecting pipe is not less than DN125.

In another embodiment, in the fume heat exchanger header with the snooping and overhauling device, a first gasket 8 is arranged between the head of the bolt 6 and the lower surface of the flange 3, and the first gasket 8 can adopt a rubber gasket or the like to increase the fastening effect of the bolt 6 and the flange 3.

In another embodiment, in the fume heat exchanger header with the snooping and overhauling device, a second gasket 9 is arranged between the nut 7 and the upper surface of the blind flange 4, and the second gasket 9 can adopt a spring gasket or the like to prevent the nut 7 from loosening.

In another embodiment, the flue gas heat exchanger header with snoop servicing apparatus has a flange gasket 10 between the flange and the blind flange.

Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the present invention can be modified by the technical solutions described in the foregoing embodiments, or equivalent substitutions and improvements can be made on some technical features of the embodiments.

Claims

1. The utility model provides a gas heater collection case with snoop overhauls device which characterized in that, this collection case includes: the device comprises a header, a hand hole connecting pipe, a flange, a blind flange and a handle; wherein: the hand hole connecting pipe is vertically fixed on the top surface of the rear section of the header, and the inner cavities of the hand hole connecting pipe and the header are communicated; the flange is fixed on the upper port of the hand hole connecting pipe, and the blind flange is detachably connected to the flange through a fastener, so that the upper port of the hand hole connecting pipe is sealed; the handle is fixed on the upper surface of the blind flange.

2. The fume heat exchanger header with snooping maintenance device according to claim 1, wherein the straight line distance between the center of the lower port of the hand hole connecting pipe and the bottom surface of the header is not less than the diameter of the hand hole connecting pipe.

3. The flue gas heat exchanger header with snooping and repairing device according to claim 1, wherein the fastening member comprises a bolt and a nut, the bolt passes through the flange and the blind flange in sequence and then is in threaded connection with the nut, so that the flange and the blind flange are fastened together.

4. The flue gas heat exchanger header with snoop servicing device of claim 3, wherein there is a first gasket between the head of said bolt and the lower surface of the flange.

5. The flue gas heat exchanger header with snoop servicing apparatus as claimed in claim 4, wherein said first gasket comprises a rubber gasket.

6. The flue gas heat exchanger header with snooping service device according to claim 3, wherein a second gasket is provided between the nut and the upper surface of the blind flange.

7. The flue gas heat exchanger header with snoop servicing apparatus as claimed in claim 6, wherein said second gasket comprises a spring gasket.

8. The flue gas heat exchanger header with snooping service device according to any one of claims 1 to 7, wherein a flange gasket is provided between the flange and the blind flange.