CN206917684U - Steam turbine water cooling heat-proof device - Google Patents
Steam turbine water cooling heat-proof device Download PDFInfo
- Publication number
- CN206917684U CN206917684U CN201720721503.7U CN201720721503U CN206917684U CN 206917684 U CN206917684 U CN 206917684U CN 201720721503 U CN201720721503 U CN 201720721503U CN 206917684 U CN206917684 U CN 206917684U
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- China
- Prior art keywords
- thermal insulation
- insulation board
- cooling
- steam turbine
- heat
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Abstract
The utility model discloses a kind of steam turbine water cooling heat-proof device, belong to steam turbine technology field, including thermal insulation board, the thermal insulation board is fixedly installed in by fastener on the cylinder of the steam turbine, packing ring is provided between the thermal insulation board and the cylinder, the fastener passes through the packing ring；Cooling-water duct is provided with the thermal insulation board, the water inlet pipe and outlet pipe connected with the cooling-water duct is respectively equipped with the thermal insulation board.The utility model is effectively taken away the heat of thermal insulation board by cooling water, is avoided heat radiation of the cylinder to bearing block lubricating oil, be ensure that the performance of lubricating oil, extends the service life of lubricating oil, so as to ensure that Turbine Safety is run.
Description
Technical field
The utility model belongs to steam turbine technology field, more particularly to a kind of steam turbine water cooling heat-proof device.
Background technology
Steam turbine is by the rotary power machinery that the energy conversion of steam is mechanical work, and the steam from boiler enters vapour
After turbine, successively by the nozzle and movable vane of a series of loop configurations, the heat energy of steam is converted into turbine rotor rotation
Mechanical energy.
At present, traditional bearing box of steam turbine steam baffle is the thick thin plates of one piece of 3mm.Although this heat-proof device has necessarily
The effect of gear vapour, but because the cylinder temperature of HTHP unit is too high, so hot spoke can be produced to the lubricating oil of bearing block
Penetrate, so that oil temperature raises, not only make lubricating condition severe, while can also greatly shorten the service life of lubricating oil；It is in addition, oily
Oil smoke even can be produced when temperature rise is serious, threatens the safe operation of steam turbine.
Utility model content
Technical problem to be solved in the utility model is：A kind of steam turbine water cooling heat-proof device is provided, it is existing to solve
The steam baffle of steam turbine can not stop that cylinder heat radiation causes the elevated technical problem of the lubricating oil temperature of bearing block.
In order to solve the above technical problems, the technical solution of the utility model is：Steam turbine water cooling heat-proof device, including it is heat-insulated
Plate, the thermal insulation board are fixedly installed in by fastener on the cylinder of the steam turbine, between the thermal insulation board and the cylinder
Provided with packing ring, the fastener passes through the packing ring；
Cooling-water duct is provided with the thermal insulation board, is respectively equipped with what is connected with the cooling-water duct on the thermal insulation board
Water inlet pipe and outlet pipe.
As an improvement the thermal insulation board includes heat-insulated plate body and the cover plate being sealedly connected on the heat-insulated plate body.
As a further improvement, the heat-insulated plate body includes two semicircle plate bodys, and each semicircle plate body is close to institute
The convolution groove offered on the surface of cover plate for increasing cooling water circulation area is stated, between the convolution groove and the cover plate
Form the cooling-water duct；The water inlet pipe and the outlet pipe are equipped with each semicircle plate body.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：Because steam turbine water cooling heat-proof device exists
Packing ring is provided between thermal insulation board and the cylinder, thus can separate thermal insulation board and cylinder by packing ring；Due in thermal insulation board
Provided with cooling-water duct, the water inlet pipe and outlet pipe connected with the cooling-water duct is respectively equipped with the thermal insulation board, thus
In use, the cooling-water duct that cooling water can enter in thermal insulation board through water inlet pipe, will be every so as to absorb heat for steam turbine
Hot plate heat is taken away, and the cooling water after finally absorbing heat flows out from outlet pipe.
Steam turbine water cooling heat-proof device provided by the utility model, by cooling water effectively by the heat band of thermal insulation board
Walk, avoid heat radiation of the cylinder to bearing block lubricating oil, ensure that the performance of lubricating oil, extend lubricating oil uses the longevity
Life, so as to ensure that Turbine Safety is run.
Because the thermal insulation board includes heat-insulated plate body and the cover plate being sealedly connected on the heat-insulated plate body, thus will be heat-insulated
Plate is designed using split, facilitates the manufacture of thermal insulation board.
Because each semicircle plate body offers convolution groove on the surface of the cover plate, thus pass through the groove that circles round
The circulation area of cooling water can be increased.
Brief description of the drawings
Fig. 1 is the vertical section structural representation of steam turbine water cooling heat-proof device provided by the utility model；
Fig. 2 is A-A sectional views in Fig. 1；
In figure：1- thermal insulation boards, 11- cooling-water ducts, the heat-insulated plate bodys of 12-, 13- convolution grooves, 2- cylinders, 3- packing rings, 4- spiral shells
Bolt, 5- water inlet pipes, 6- outlet pipes.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As Fig. 1 and Fig. 2 are jointly shown, a kind of steam turbine water cooling heat-proof device, including thermal insulation board 1, thermal insulation board 1 pass through fastening
Part is fixedly installed on the cylinder 2 of steam turbine, and packing ring 3 is provided between thermal insulation board 1 and cylinder 2, and fastener passes through packing ring 3, fastening
Part is preferably bolt 4；So can separate thermal insulation board 1 and cylinder 2 by packing ring 3.
In the present embodiment, 10-20mm can be selected in the thickness of packing ring 3.The particular number of bolt 4 and packing ring 3, this area skill
Art personnel can be selected according to actual conditions, will not be repeated here.
Cooling-water duct 11 is provided with thermal insulation board 1, the water inlet pipe connected with cooling-water duct 11 is respectively equipped with thermal insulation board 1
5 and outlet pipe 6.
In order to facilitate the manufacture of thermal insulation board 1, it is preferred that thermal insulation board 1 includes heat-insulated plate body 12 and is sealedly connected on thermal insulation board
Cover plate (not shown) on body 12, it is preferred to use the mode of welding links together heat-insulated plate body 12 and cover plate.
Preferably, heat-insulated plate body 12 includes two semicircle plate bodys (not marked in figure), and each semicircle plate body is close to cover plate
The convolution groove 13 for increasing cooling water circulation area is offered on surface, the formation cooling water between groove 13 and cover plate that circles round leads to
Road；Water inlet pipe 5 and outlet pipe 6 are equipped with each semicircle plate body.
Its operation principle is as follows：
Steam turbine in use, cooling water can through water inlet pipe 5 enter thermal insulation board 1 in cooling-water duct 11, so as to
Heat is absorbed, the heat of thermal insulation board 1 is taken away, the cooling water after finally absorbing heat flows out from outlet pipe 6.
It should be noted that above-mentioned steam turbine cylinder 2 and steam turbine bearing block (not shown) respectively be located at every
The both sides of hot plate 1, are known in the art technology, will not be repeated here；The concrete structure of above-mentioned thermal insulation board 1 can have a variety of, example
Thermal insulation board 1 is such as designed to hollow structure, cooling water pipe etc. is set inside it, is well known to those skilled in the art,
This is repeated no more.
Steam turbine water cooling heat-proof device provided by the utility model, it is applicable for the steam turbine of various models and power,
Be particularly suitable for use in HTHP unit.
Steam turbine water cooling heat-proof device provided by the utility model, by cooling water effectively by the heat band of thermal insulation board 1
Walk, avoid heat radiation of the cylinder 2 to bearing block lubricating oil, ensure that the performance of lubricating oil, extend lubricating oil uses the longevity
Life, so as to ensure that Turbine Safety is run.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. steam turbine water cooling heat-proof device, including thermal insulation board, it is characterised in that the thermal insulation board is fixedly installed in by fastener
On the cylinder of the steam turbine, packing ring is provided between the thermal insulation board and the cylinder, the fastener passes through the packing ring；
Cooling-water duct is provided with the thermal insulation board, the water inlet connected with the cooling-water duct is respectively equipped with the thermal insulation board
Pipe and outlet pipe.
2. steam turbine water cooling heat-proof device according to claim 1, it is characterised in that the thermal insulation board includes heat-insulated plate body
With the cover plate being sealedly connected on the heat-insulated plate body.
3. steam turbine water cooling heat-proof device according to claim 2, it is characterised in that the heat-insulated plate body includes two and half
Plectane body, each semicircle plate body are offered on the surface of the cover plate for increasing returning for cooling water circulation area
Spin slot, the cooling-water duct is formed between the convolution groove and the cover plate；It is equipped with each semicircle plate body described
Water inlet pipe and the outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721503.7U CN206917684U (en) | 2017-06-20 | 2017-06-20 | Steam turbine water cooling heat-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721503.7U CN206917684U (en) | 2017-06-20 | 2017-06-20 | Steam turbine water cooling heat-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917684U true CN206917684U (en) | 2018-01-23 |
Family
ID=61322324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720721503.7U Active CN206917684U (en) | 2017-06-20 | 2017-06-20 | Steam turbine water cooling heat-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917684U (en) |
-
2017
- 2017-06-20 CN CN201720721503.7U patent/CN206917684U/en active Active
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