CN202734595U - Safe diaphragm plate capable of monitoring deformation of diaphragm plate sheet - Google Patents
Safe diaphragm plate capable of monitoring deformation of diaphragm plate sheet Download PDFInfo
- Publication number
- CN202734595U CN202734595U CN 201220404766 CN201220404766U CN202734595U CN 202734595 U CN202734595 U CN 202734595U CN 201220404766 CN201220404766 CN 201220404766 CN 201220404766 U CN201220404766 U CN 201220404766U CN 202734595 U CN202734595 U CN 202734595U
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- diaphragm plate
- sheet
- lamina membranacea
- safe
- tube body
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Abstract
The utility model relates to a safe diaphragm plate capable of monitoring deformations of a diaphragm plate sheet, and aims that provided apparatus can guarantee normal operation of a condenser, can timely monitor and judge internal diaphragm states of the safe diaphragm plate, and has the characteristics of being simple in structure, economical and practical. The utility model adopts the technical scheme that the safe diaphragm plate capable of monitoring deformations of the diaphragm plate sheet comprises a cone-shaped casing and a cylindrical tube body the end surfaces of which are oppositely connected; a butt clamp is arranged at the connection of the cone-shaped casing and the cylindrical tube body; the other two end surfaces of the cone-shaped casing and the tube body are respectively used as a steam inlet and a steam outlet; the diaphragm plate is tightly clung to a perforated plate fixed on the end surface of the casing; a sharp instrument is fixed in the tube body, and the pointed end thereof points to the diaphragm plate and keeps a certain distance with the diaphragm plate. The safe diaphragm plate is characterized in that the tube body is internally provided with a sensor, and a contact of the sensor is in direct contact with the diaphragm plate sheet. The sensor is a travel switch which is fixed on a horizontal stripe of an inner wall of the tube body through a support.
Description
Technical field
The utility model relates to a kind of monitored safety guard of turbine condenser, especially can monitor the safe diaphragm plate of lamina membranacea sheet deformation.
Background technology
In the thermodynamic cycle of condensing turbine group, condensing equipment plays a part low-temperature receiver, and its main task is the steam condensation Cheng Shui that steam turbine is discharged; Because it is that therefore phase transition process can form vacuum that steam becomes water, the vacuum of condenser has significant impact to efficient, the power of steam-turbine plant.Steam turbine exhaust pressure under normal circumstances, condenser is in vacuum state; When accident condition, steam turbine exhaust pressure is malleation and surpasses the condenser authorized pressure, will have a negative impact to equipment, even jeopardize device security.So, safe diaphragm plate is installed on the condenser; This safe diaphragm plate can be when 0.01 ~ 0.02MPa (G) explosion to discharge malleation, to guarantee device security.
Yet, existing steam turbine condensing system installs in pour water leak detection or the running, because hydraulic pressure and steam pressure effect might cause the lamina membranacea sheet of safe diaphragm plate to heave, even causes and breaks, cause the vacuum pressure at steam discharge position to be difficult to set up, affect the efficient of Steam Turbine.Because the lamina membranacea sheet is installed in the confined space, outer room can't intuitively be seen; Easily cause operating personnel's error in judgement (thinking it is equipment fault by mistake), cause unnecessary trouble.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of safe diaphragm plate of monitoring the deformation of lamina membranacea sheet, this device should be able to be guaranteed the normal operation of condenser, can in time monitor and judge safe diaphragm plate internal membrane sheet state, and have simple in structure, economical and practical characteristics.
The technical scheme that the utility model provides is: the safe diaphragm plate that can monitor the deformation of lamina membranacea sheet, comprise cone shape housing and columned body that the end face docking links to each other, both continuous junctions arrange a lamina membranacea sheet, and two other end face of housing and body is respectively as steam inlet and outlet; Described lamina membranacea sheet is close to and is fixed on the porous plate of housing end face; Fix a sharp instrument in the body, the tip of sharp instrument is pointed to the lamina membranacea sheet and is kept with it certain spacing; It is characterized in that also being equipped with in the body sensor, the contact of sensor directly contacts with the lamina membranacea sheet.
Described sensor is travel switch.
Described travel switch is fixed on the horizontal stripe of inboard wall of tube body by support.
Operation principle of the present utility model is:
Install in the leak detection process of pouring water in the steam turbine condensing system, because Water Pressure causes lamina membranacea sheet 6 to heave, the travel switch 16 that be installed in lamina membranacea sheet dead ahead this moment can detect its stroke, and alarm signal prompting personnel are sent in switch motion when stroke surpasses 1.5mm needs to check; Namely need to change because surpassing stroke if lamina membranacea sheet bulge height surpasses the 4mm(travel switch), can change by the manhole on the housing of column.
The beneficial effects of the utility model are:
1. can protect the safe operation of condenser and whole steam turbine and condensing system, prevent that superpressure from causing accident.
2. can be in condensing system leak test process, detect the deformation extent of lamina membranacea sheet, prevent that its distortion from excessively being stabbed by sharp instrument.
3. condenser security template apparatus structure is simple, and template sheet and travel switch replacement cost are low thereby economical and practical.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model.
Fig. 3 is the structure for amplifying schematic diagram of travel switch and diaphragm installation site
The specific embodiment
Condenser security template as shown in the figure comprises cone shape housing A and columned body B; Cone shape housing is combined by the straight tube 2 that sequentially joins, Taper Pipe 3 and porous plate 4 welding, and the bottom is as air intake 1; Columned body is also by combining clipper joint 7, straight tube 15 and 14 welding of end face shrouding of sequentially joining, and is connected with weld assembly 10, column jecket 11 by connector, and the top is as steam drain 13.
The inner chamber of body is provided with a metal horizontal stripe 9, this horizontal stripe is fixed near lamina membranacea sheet 6(lamina membranacea sheet and adopts aluminium flake or Stainless Steel sheet) internal chamber wall section (normally passing through the body center of column), and sharp instrument 12 is housed in the center, the tip of sharp instrument is pointed to the lamina membranacea sheet and is kept with it suitable distance (recommended distance is 6mm); Horizontal stripe 9 is by being connected with lug 8 on the column inboard wall of tube body, and lug is fixed on the inwall of (generally being welded and fixed) straight tube 15.The end face connecting place of body and housing is to pressing from both sides a lamina membranacea sheet 6, and by connector with lamina membranacea sheet 6 and seal 5(rubber seal) fastening together; Connector by unclamping weld assembly 10 and unclamp template sheet 6 can realize the transposing of template to clipper joint 7.Said structure is all identical with existing safe diaphragm plate structure.
Improvement of the present utility model is that a sensor 16 is housed in template, and the contact of sensor directly contacts with the lamina membranacea sheet, with the deformation of monitoring lamina membranacea sheet.This sensor can be travel switch, or other active signal trigger switch.
When adopting travel switch, need on horizontal stripe 9, to be equipped with equally a support 9-1(other in sharp instrument 12), support is connected screw with travel switch and connects; The contact of travel switch and lamina membranacea sheet 6 contact frees, the wiring of travel switch use 24V DC power supply, and wiring is drawn by the aperture on the straight tube 15, and use low-voltage dc power supply to avoid human body to come to harm.When lamina membranacea sheet 6 occured deformation above 1.5mm, wire loop is connected or closed and produce alarm signal alert lamina membranacea sheet deformation; When lamina membranacea sheet distortion surpasses 4mm, when namely exceeding the range of travel switch or other reason and causing switch to damage, can change travel switches by the manhole 20 on the straight tube 15, also can observe diaphragm by this manhole and whether be stabbed by sharp instrument 12.
During normal operation, steam turbine exhaust pressure is negative pressure, and condenser is in vacuum state; Steam in the condenser enters condenser security template import 1, but steam tunicle plate 6 stops; Enter because condenser is in vacuum state and does not allow not coagulate air, and sealing ring 5 sealings are arranged, this moment, the lamina membranacea sheet was held by porous plate 4.When steam turbine exhaust pressure is malleation and when surpassing the security template setting pressure; steam is by the aperture on the porous plate 4, so that lamina membranacea sheet 6 upwards bloats and then punctured by sharp instrument 12, steam namely enters the housing B of column; and discharge into the atmosphere by steam drain 13, and then protected device security.Unclamp the connector of weld assembly 10, and unclamp clipper joint 7, the lamina membranacea sheet 6 after replaceable the breaking.
Claims (3)
1. can monitor the safe diaphragm plate of lamina membranacea sheet deformation, comprise cone shape housing (A) and columned body (B) that the end face docking links to each other, both continuous junctions arrange a lamina membranacea sheet (6), and two other end face of housing and body is respectively as steam inlet and outlet; Described lamina membranacea sheet is close to and is fixed on the porous plate (4) of housing end face; Fix a sharp instrument (12) in the body, the tip of sharp instrument is pointed to the lamina membranacea sheet and is kept with it certain spacing; It is characterized in that also being equipped with in the body sensor (16), the contact of sensor directly contacts with the lamina membranacea sheet.
2. safe diaphragm plate of monitoring the deformation of lamina membranacea sheet according to claim 1, it is characterized in that: described sensor is travel switch.
3. safe diaphragm plate of monitoring the deformation of lamina membranacea sheet according to claim 2, it is characterized in that: described travel switch is fixed on the horizontal stripe (9) of inboard wall of tube body by support (9-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404766 CN202734595U (en) | 2012-08-15 | 2012-08-15 | Safe diaphragm plate capable of monitoring deformation of diaphragm plate sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404766 CN202734595U (en) | 2012-08-15 | 2012-08-15 | Safe diaphragm plate capable of monitoring deformation of diaphragm plate sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734595U true CN202734595U (en) | 2013-02-13 |
Family
ID=47660288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404766 Expired - Lifetime CN202734595U (en) | 2012-08-15 | 2012-08-15 | Safe diaphragm plate capable of monitoring deformation of diaphragm plate sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734595U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297119A (en) * | 2014-10-27 | 2015-01-21 | 重庆大学 | Method for giving alarm on out-of-limit concentration of inhalable particulate matter (PM) in air |
| CN105387731A (en) * | 2015-11-02 | 2016-03-09 | 杭州国能汽轮工程有限公司 | Condenser safety diaphragm plate for detecting trace leakage |
| CN107655639A (en) * | 2017-09-01 | 2018-02-02 | 西北工业大学 | Released gas rate detection means |
-
2012
- 2012-08-15 CN CN 201220404766 patent/CN202734595U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297119A (en) * | 2014-10-27 | 2015-01-21 | 重庆大学 | Method for giving alarm on out-of-limit concentration of inhalable particulate matter (PM) in air |
| CN105387731A (en) * | 2015-11-02 | 2016-03-09 | 杭州国能汽轮工程有限公司 | Condenser safety diaphragm plate for detecting trace leakage |
| CN107655639A (en) * | 2017-09-01 | 2018-02-02 | 西北工业大学 | Released gas rate detection means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |