CN218178858U - Round concave platform for turning bolt holes of pass partition plates of high-pressure heater - Google Patents
Round concave platform for turning bolt holes of pass partition plates of high-pressure heater Download PDFInfo
- Publication number
- CN218178858U CN218178858U CN202221087172.3U CN202221087172U CN218178858U CN 218178858 U CN218178858 U CN 218178858U CN 202221087172 U CN202221087172 U CN 202221087172U CN 218178858 U CN218178858 U CN 218178858U
- Authority
- CN
- China
- Prior art keywords
- bolt hole
- partition plate
- circular concave
- bolt
- baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005192 partition Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims 1
- 238000009991 scouring Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model relates to a high pressure feed water heater by-pass baffle bolt hole turning circular concave station, its technical scheme lies in solving present unit normal operating, and high pressure feed water heater by-pass baffle mounting bolt hole has the serious scouring leakage problem, leads to high pressure feed water heater entry feedwater temperature and export feedwater temperature and design temperature value to have the deviation, and feedwater temperature is the important index of economic nature examination simultaneously, and feedwater temperature is on the low side for the recuperation economic nature of whole unit descends, and the coal-fired consumption of boiler increases, seriously influences unit economic nature; the plane of the bolt hole for installing the high-pressure heater split-ranging partition plate is set to be a circular concave platform turned by the bolt hole for installing the high-pressure heater split-ranging partition plate, the high-temperature-resistant composite sealing gasket is configured at the position of the circular concave platform turned by the bolt hole, the fastening bolt is led to reach the strict sealing requirement, the long-period stable operation of the sealing structure is ensured, the problem that the bolt gap is directly washed by the supplied water is solved, and the economical efficiency of a unit is improved to achieve the purposes of energy conservation and consumption reduction.
Description
Technical Field
The utility model relates to a power plant's high pressure feed water heater hydroecium divides journey baffle technical field, concretely relates to high pressure feed water heater divides round concave station of journey baffle bolt hole turning.
Background
The high-pressure heater is an important component in a regenerative system of a thermal power generating unit, is a device for heating feed water by using partial extracted steam of a steam turbine, and the reliability and the stability of the operation of the high-pressure heater are directly related to the safe and economic operation of the thermal power generating unit.
Because the flow direction of the feed water is forced to flow according to the determined stroke direction by the pass partition plate, if the sealing action of the bolt holes of the pass partition plate is damaged and leakage occurs, the feed water is short-circuited, part of the feed water which is not heated by the high-pressure heater tube bundle directly leaks from the gap of the mounting bolt holes, and the feed water is mixed with the main flow of the feed water passing through the high-pressure heater, so that the temperature of the feed water outlet of the high-pressure heater is reduced.
At present, four partition plates are arranged on a water chamber pass partition plate of a high-pressure heater of a power plant, the partition plates are fixed on a frame of the pass partition plate through gaskets, gaskets and bolts, the four partition plates need to be taken out during maintenance, the bolts used for fixing the single partition plate are unscrewed, the gaskets and the partition plates are taken out, the rest of the partition plates are taken out in sequence, and the partition plates are installed back according to the original positions after the maintenance is finished.
The high-pressure heater is overhauled during the shutdown period of all the times, the manhole of the high-pressure heater is disassembled, the water chamber range division partition plate is taken out from the inside, and the serious scouring leakage trace existing in the installation bolt hole of the water chamber range division partition plate of the high-pressure heater is found, so that the safe and stable operation of the system is influenced.
The water chamber split-ranging partition plate of the high-pressure heater is fixed on a frame of the split-ranging partition plate through a gasket, a gasket and bolts, high-temperature and high-pressure water supply in the water chamber directly scours gaps of bolt holes to cause leakage, and the high-temperature and high-pressure water supply is mixed with main water supply flow heated by the high-pressure heater to reduce the temperature of a water supply outlet of the high-pressure heater, seriously affect the economical efficiency of a unit and become the technical problem to be solved for energy conservation and consumption reduction of the unit.
Disclosure of Invention
In order to solve the technical problem that the fixing bolt hole gap of current high pressure heater hydroecium branch stroke baffle between normal operating median septum and frame leaks, the utility model discloses the implementation provides a circular concave station of high pressure heater hydroecium branch stroke baffle bolt hole turning, concrete technical scheme as follows:
the utility model discloses implementation provides a be used for power plant high pressure feed water heater hydroecium baffle, include: hydroecium branch journey baffle fixing bolt, hydroecium branch journey baffle, baffle installation frame.
The water chamber range division partition plate is characterized in that a turning circular concave table is machined on a bolt hole of the water chamber range division partition plate, the turning concave table is arranged on a mounting bolt hole of the water chamber range division partition plate in a circular shape, 32 bolt holes of the water chamber range division partition plate are arranged, 32 turning circular concave tables are arranged, and internal threads are arranged on the water chamber range division partition plate and the frame.
And the planeness of the turned round concave table is less than 0.02 mm at the mounting bolt hole of the water chamber range division partition plate.
The depth of the turned round concave platform is 5mm at the mounting bolt hole of the water chamber split partition plate.
And the outer diameter of a turned round concave platform is 25mm at the mounting bolt hole of the water chamber split partition plate.
And the inner diameter of a turned round concave table is 16mm at the mounting bolt hole of the water chamber range division partition plate.
The specification of the high-temperature resistant composite sealing gasket assembled by turning round concave platforms is 16mm multiplied by 25mm multiplied by 5mm.
The water chamber range division partition plate bolt is a high-strength scouring-resistant bolt.
The water chamber range division partition plate is divided into four partition plates in the whole structure, the partition plates are step-shaped partition plates, and the lower surfaces of the partition plates are respectively provided with a dismounting handle.
Through hole internal thread through holes with the same number as the bolt holes are formed in the steps of the partition plate, and the partition plate is connected with the partition plate gasket through bolts and high-temperature-resistant sealing grease; the spacer, the washer and the bolt are fixed on the frame of the stroke separating plate. These four baffles must be taken out during maintenance: the bolt for fixing the single partition plate is unscrewed, the flat washer, the spring washer and the partition plate are taken out, other partition plates are taken out, and the partition plate is installed in situ after the maintenance.
Drawings
Fig. 1 is the utility model discloses a top view, hydroecium branch journey baffle installation bolt hole department processing set up the circular concave station schematic diagram of turning.
Fig. 2 is the utility model discloses the baffle bolt hole has been assembled high temperature resistant composite seal and bolt cross-sectional view.
Detailed Description
The core of the utility model is to provide a processing of power plant's high pressure feed water room branch stroke baffle installation bolt hole department sets up the circular concave station of turning, can solve the problem that the direct bolt hole gap that erodees of high temperature high pressure feedwater in the hydroecium leads to leaking, has improved high pressure feed water outlet temperature, has reached unit energy saving and consumption reduction target, has strengthened unit safety economic nature operation.
The technical solutions of the present invention will be described and fully apparent from the following description and drawings.
Referring to fig. 1, the partition boards are divided into a first partition board 1, a second partition board 2, a third partition board 3 and a fourth partition board 4, wherein 5 are partition board bolt holes, 6 are partition board bolt turning circular concave platforms, and 7 are partition board dismounting handles.
Referring to fig. 2, 8 is a high strength bolt of the partition, 9 is a metal gasket of the partition, 10 is a sealing gasket of a high temperature resistant composite gasket, 4 is the partition, and 11 is a partition fixing frame.
Referring to fig. 1, the high pressure heater water chamber split partition assembly is composed of a first partition 1, a second partition 2, a third partition 3 and a fourth partition 4, wherein the four partitions are in a stepped sealing form, and each partition is provided with two disassembling and assembling handles 7.
Referring to fig. 1, the high pressure heater water chamber range division plate assembly has 32 bolt holes, and 6 turned circular concave platforms are arranged at the bolt holes.
Referring to fig. 1, when the pass partition board of the high pressure heater water chamber is installed again, the partition board numbered 1 is installed on the partition board frame.
Referring to fig. 2, a circular concave table is provided with a proper high-temperature-resistant composite sealing gasket to be installed in place, a high-strength bolt 8 is installed in a bolt hole 5 to be fastened uniformly, a sealing gasket 9 and sealing grease are installed at the lap joint of a first partition plate 1 and a second partition plate 2, a circular concave table 6 is provided with a high-temperature-resistant composite gasket sealing gasket 10 to be installed in place, the high-strength bolt 8 is installed in the bolt hole to be fastened uniformly, and the partition plates are numbered as 3 and 4 in sequence and are reassembled according to the process sequence; matters to be noted; the water chamber split partition plate needs to be assembled in place and screwed by bolts, so that the sealing function of the composite pad sealing gasket 10 and the gasket 9 at the round concave platform 6 of the water chamber split partition plate of the high-pressure heater is ensured.
Please refer to fig. 1, when the high pressure heater in the power plant is overhauled, the maintainer enters the interior to detach the high-strength bolts and washers on the first partition board 1, the second partition board 2, the third partition board 3 and the fourth partition board 4, and then sequentially take out the four partition boards for overhauling.
The embodiments described above are only preferred embodiments of the present invention, and not all, and those skilled in the art will be able to implement the invention without making any changes or alterations without departing from the design principles of the present invention.
Claims (3)
1. The utility model provides a circular concave station of high pressure feed water heater pass partition bolt hole turning for power plant high pressure feed water heater hydroecium baffle, its characterized in that includes: hydroecium branch journey baffle bolt hole, the circular concave station of turning, high temperature resistant composite seal fills up, the bolt that excels in, hydroecium branch journey baffle, baffle installation frame, the baffle bottom is equipped with two handles, and the circular concave station of installation bolt hole turning seals with the sealed pad of nai high temperature, and baffle bolt hole and the circular concave station of turning installation are sealed to excel in and are sealed, and the high strength bolt configuration packing ring that excels in fastens evenly.
2. The high-pressure heater stroke-dividing partition plate bolt hole turned circular concave table as claimed in claim 1, wherein: the water chamber range division partition plate assembly is composed of four partition plates, the four partition plates are in a step sealing mode, and each partition plate is provided with two dismounting handles.
3. The high-pressure heater stroke-dividing partition plate bolt hole turned circular concave table as claimed in claim 1, wherein: the water chamber range division partition plate assembly is provided with 32 bolt holes in total, and a turned round concave platform is arranged at the bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221087172.3U CN218178858U (en) | 2022-05-08 | 2022-05-08 | Round concave platform for turning bolt holes of pass partition plates of high-pressure heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221087172.3U CN218178858U (en) | 2022-05-08 | 2022-05-08 | Round concave platform for turning bolt holes of pass partition plates of high-pressure heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218178858U true CN218178858U (en) | 2022-12-30 |
Family
ID=84604526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221087172.3U Expired - Fee Related CN218178858U (en) | 2022-05-08 | 2022-05-08 | Round concave platform for turning bolt holes of pass partition plates of high-pressure heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218178858U (en) |
-
2022
- 2022-05-08 CN CN202221087172.3U patent/CN218178858U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218178858U (en) | Round concave platform for turning bolt holes of pass partition plates of high-pressure heater | |
| CN107762574A (en) | A kind of measurement structure of double shell cylinder inner casing steam pressure | |
| CN110426277B (en) | High-pressure sealing butt joint device for water pressure test of coiled pipe heat exchange module | |
| CN217877236U (en) | Steam heat exchanger capable of monitoring leakage in real time | |
| CN103063075A (en) | Tube box structure of tube type heat exchanger | |
| CN109579563B (en) | Double-cylinder casting shell heat exchanger | |
| CN203100525U (en) | Tube box structure for tube type heat exchanger | |
| CN211289095U (en) | Multi-sealing corrosion-resistant flange | |
| CN211237915U (en) | Full-sealed welding structure of transformer box edge | |
| CN217440772U (en) | High pressure feed water heater baffle seal structure | |
| CN210717642U (en) | Boiler sealing device | |
| CN109026882A (en) | A kind of fast inserted formula hydraulic valve of high efficiency leakproof | |
| CN111408258B (en) | Flue gas outlet device of absorption tower | |
| CN216589930U (en) | Assembled sealing gasket of generator set | |
| CN212242391U (en) | Corrugated roller with novel structure | |
| CN220980305U (en) | Sealing device for testing complete machine of gas turbine | |
| CN217235553U (en) | Quick detachable boiler heating surface header hand hole structure | |
| CN207993498U (en) | A kind of nuclear power station material-changing water tank manhole flange sealing structure | |
| CN213728325U (en) | Nuclear power plant emergency diesel engine high-temperature water loop flushing device | |
| CN212178161U (en) | Welding sealing flange | |
| CN221221824U (en) | Stainless steel forging piece for nuclear power equipment | |
| CN211315431U (en) | Water seal structure of flue gas refrigeration generator | |
| CN210919553U (en) | Mechanical seal of hot water circulating pump | |
| CN215523776U (en) | Boiler waste heat recycling device | |
| CN219063759U (en) | Horizontal hot water boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221230 |