CN205842216U - A kind of pressure surge proof device of steam security valve - Google Patents
A kind of pressure surge proof device of steam security valve Download PDFInfo
- Publication number
- CN205842216U CN205842216U CN201620558151.3U CN201620558151U CN205842216U CN 205842216 U CN205842216 U CN 205842216U CN 201620558151 U CN201620558151 U CN 201620558151U CN 205842216 U CN205842216 U CN 205842216U
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- steam
- valve
- drain
- security valve
- pipe
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Abstract
The purpose of this utility model is to provide the pressure surge proof device of a kind of steam security valve, and including jet chimney, steam security valve and blow-off line, described steam security valve includes that air intake and steam drain, described air intake are connected with described jet chimney；Described blow-off line includes three way cock, the first elbow and the first vertical tube being sequentially connected with, described three way cock includes two horizontal interfaces in the horizontal direction and a vertical interface vertically, one of them horizontal interface is connected with described steam drain, and another horizontal interface and the first elbow are connected；The bottom of described vertical interface is provided with plug and seals formation one reservoir chamber by plug, and the side of described reservoir chamber is provided with drain pipe, and described drain pipe is provided with drain valve.Hydrops in steam security valve gland steam exhauster can be drained by this utility model in time, it is ensured that when steam security valve take-off, does not haves " water attack " accident.
Description
Technical field
This utility model belongs to jet chimney conveying technology field, is specifically related to the water impact preventing dress of a kind of steam security valve
Put.
Background technology
For ensureing the safe and stable operation of steam security valve, need periodically steam security valve to be carried out steam discharge test, to determine
Steam security valve whether corrosion, this contains steam condensate (SC) in having resulted in steam security valve blow-off line；Too high in vapour pressure
In the case of causing steam security valve take-off, in will also result in steam security valve blow-off line, accumulate condensed water.Additionally, gland steam exhauster
If suitable rain insensitive device is not installed in the outlet of outdoor, road, rainwater also can be caused to enter gland steam exhauster from outdoor steam drain, cause peace
Full valve gland steam exhauster hydrops.After relief valve gland steam exhauster hydrops, if jet chimney pressure exceeds standard causes safety valve jumping up, then steam meeting
Size according to vapour pressure is with 20 ~ 30 m/s, and the speed of the highest even up to 80 m/s is discharged from gland steam exhauster, in promoting exhaustor
Hydrops quickly move forward, cause " water attack " accident to occur, time serious, even can cause Pipeline damage, casualties and property
Loss.
Utility model content
The purpose of this utility model is to provide the pressure surge proof device of a kind of steam security valve, it is possible in time by steam safety
Hydrops in valve gland steam exhauster is drained, it is ensured that when steam security valve take-off, does not haves " water attack " accident.
This utility model adopts the following technical scheme that
The pressure surge proof device of a kind of steam security valve, including jet chimney, steam security valve and blow-off line, described steaming
Vapour relief valve includes that air intake and steam drain, described air intake are connected with described jet chimney；Described blow-off line includes suitable
The three way cock of secondary connection, the first elbow and the first vertical tube, described three way cock includes that two levels in the horizontal direction connect
Mouth and a vertical interface vertically, one of them horizontal interface is connected with described steam drain, and another level connects
Mouth is connected with the first elbow；The bottom of described vertical interface is provided with plug and seals formation one reservoir chamber by plug, described
The side of reservoir chamber is provided with drain pipe, and described drain pipe is provided with drain valve.
The pressure surge proof device of above-mentioned steam security valve, described steam security valve is spring steam security valve, described thin
Water valve is heat power type Shemostatic team trap.
The pressure surge proof device of above-mentioned steam security valve, the downward-sloping setting of described drain pipe, and drain pipe are by with thin
Water inlet pipe that water valve import is connected and the outlet pipe being connected with drain valve outlet are constituted.
The pressure surge proof device of above-mentioned steam security valve, the angle that described drain pipe tilts is 5 ° ~ 20 °, described water inlet pipe
Diameter not less than the diameter of drain valve import, the diameter of outlet pipe is not less than the diameter of drain valve outlet.
The pressure surge proof device of above-mentioned steam security valve, also includes the second elbow and the second vertical tube, described outlet pipe via
Second elbow and the second vertical tube are connected, and the second elbow and the second vertical tube are provided with venthole, the end connection of the second vertical tube
To downcomer.
The pressure surge proof device of above-mentioned steam security valve, the outside of described outlet pipe, the second elbow and the second vertical tube is equal
It is provided with heat-insulation layer.
The pressure surge proof device of above-mentioned steam security valve, a diameter of 1mm ~ 2mm of described venthole.
The pressure surge proof device of above-mentioned steam security valve, described plug is provided with sewage draining exit and connects row by this sewage draining exit
Dirty pipe, described blow-off pipe is provided with control valve, and the end of blow-off pipe is communicated to downcomer.
The beneficial effects of the utility model are as follows:
(1), in this utility model, the vertical interface lower end in three way cock arranges plug and seals formation one reservoir chamber, this storage
Hydroecium is in the extreme lower position of blow-off line, and the sectional area of reservoir chamber is relatively big, collection 6 water pipe less relative to sectional area,
Condensed water or rainwater can naturally, smoothly flow therein reservoir chamber, be not detained in blow-off line, after flowing into reservoir chamber,
The drain pipe arranged by reservoir chamber side is discharged.
(2) on drain pipe, drain valve is set, in view of drain valve is heat power type Shemostatic team trap, can arbitrarily angled pacify
Dress, therefore drain pipe can be obliquely installed so that the water in reservoir chamber can be taken advantage of a situation outflow, timely draining, and water inlet pipe is straight
Footpath is relatively big, facilitates the outflow of water.
(3) the cool solidifying water in drain valve is dependent on the difference of upstream pressure and downstream pressure to promote outside condensed water dump valve
, if drain valve exit resistance is big, i.e. back pressure is big, then the action pressure reduction before and after drain valve will diminish, the row of cool solidifying water
Amount also can reduce.This utility model by multiple setting to reduce the resistance of pipeline after drain valve exports, specifically, on the one hand
The diameter of outlet pipe, more than the diameter of drain valve outlet, on the other hand, the second elbow and the second vertical tube is equipped with venthole, makes
Obtain the pressure in the pipeline after drain valve outlet suitable with atmospheric pressure, reduce back pressure.It is noted that the setting of venthole
Also having extra use, because the second vertical tube is communicated to downcomer, the water in downcomer may enter the second vertical tube by suck-back, if
After having put venthole, then completely avoid this problem, and the diameter of venthole only 1mm ~ 2mm, diameter is less, can play
The due effect of venthole, is also not result in the leakage of condensed water.
(4) outside of described outlet pipe, the second elbow and the second vertical tube is equipped with heat-insulation layer, and this is to prevent winter
When temperature is relatively low, condensed water freezes in the duct, makes drain valve cisco unity malfunction, cause the hydrops in blow-off line can not and
Time discharge.
(5) dirt such as the rust in cool solidifying water or rainwater, dust flows in reservoir chamber together together with condensed water or rainwater, for
Do not allow these dirts enter in drain valve, at plug, be provided with sewage draining exit and connect blow-off pipe, blowdown by this sewage draining exit
Pipe is provided with control valve, periodically turns on control valve, discharges the dirt gathered in reservoir chamber.
In sum, this utility model can discharge the hydrops in blow-off line timely and effectively, it is to avoid occurs " water attack "
Accident.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make technical purpose of the present utility model, technical scheme and beneficial effect clearer, below in conjunction with the accompanying drawings and
The technical solution of the utility model is further illustrated by specific embodiment.
As it is shown in figure 1, the pressure surge proof device of a kind of steam security valve, including jet chimney 1, steam security valve 2 and row
Steam pipe road 18, described steam security valve 2 is spring steam security valve, and described steam security valve 2 includes air intake 3 and steam drain
4, described air intake 3 is connected with jet chimney 1 by the first flange 5；Described blow-off line 18 includes the threeway being sequentially connected with
Joint the 6, first elbow 7 and the first vertical tube 8, described three way cock 6 includes two horizontal interfaces in the horizontal direction and one
Vertical interface vertically, one of them horizontal interface is connected with by steam drain described in the second flange 23, another
Horizontal interface and the first elbow 7 are connected；The bottom of described vertical interface is provided with plug 10 and seals formation one by plug 10
Reservoir chamber 9, described plug 10 is provided with sewage draining exit and connects blow-off pipe 11 by this sewage draining exit, and described blow-off pipe 11 is provided with control
Valve 12 processed, the end of blow-off pipe 11 is communicated to downcomer 17.The side of described reservoir chamber 9 is provided with drain pipe 19, described drain pipe
19 are provided with drain valve 16, and described drain valve 16 is heat power type Shemostatic team trap.The described downward-sloping setting of drain pipe 19,
And drain pipe 19 exports, by the water inlet pipe 20 being connected with drain valve 16 import and with drain valve 16, the outlet pipe being connected
21 are constituted, and the angle that described drain pipe 19 tilts is 10 °, and the diameter of described water inlet pipe 20 is straight not less than drain valve 16 import
Footpath, the diameter of outlet pipe 21 is not less than the diameter of drain valve 16 outlet.Described outlet pipe 21 erects via the second elbow 22 and second
Pipe 13 is connected, and the second elbow 22 and the second vertical tube 13 are provided with venthole 15, and a diameter of 1mm of described venthole 15 ~
2mm, the end of the second vertical tube 13 is communicated to downcomer 17.Outside described outlet pipe the 21, second elbow 22 and the second vertical tube 13
Portion is equipped with heat-insulation layer 14, and heat-insulation layer 14 is made up of polyurethane heat insulation material.
It should be noted last that: above-described embodiment is merely to illustrate and unrestricted the technical solution of the utility model, appoint
The equivalent that this utility model is carried out by what and amendment or local without departing from this utility model spirit and scope are replaced, and it is equal
Should contain within this utility model protective scope of the claims.
Claims (8)
1. a pressure surge proof device for steam security valve, including jet chimney, steam security valve and blow-off line, its feature exists
In: described steam security valve includes that air intake and steam drain, described air intake are connected with described jet chimney；Described gland steam exhauster
Road includes three way cock, the first elbow and the first vertical tube being sequentially connected with, and described three way cock includes two in the horizontal direction
Horizontal interface and a vertical interface vertically, one of them horizontal interface is connected with described steam drain, another
Individual horizontal interface and the first elbow are connected；The bottom of described vertical interface is provided with plug and seals formation one water storage by plug
Room, the side of described reservoir chamber is provided with drain pipe, and described drain pipe is provided with drain valve.
The pressure surge proof device of steam security valve the most according to claim 1, it is characterised in that: described steam security valve is bullet
Spring formula steam security valve, described drain valve is heat power type Shemostatic team trap.
The pressure surge proof device of steam security valve the most according to claim 2, it is characterised in that: described drain pipe is downward-sloping
Arrange, and drain pipe is by the water inlet pipe being connected with drain valve import and the outlet pipe structure being connected with drain valve outlet
Become.
The pressure surge proof device of steam security valve the most according to claim 3, it is characterised in that: the angle that described drain pipe tilts
Degree is 5 ° ~ 20 °, and the diameter of described water inlet pipe goes out not less than drain valve not less than the diameter of drain valve import, the diameter of outlet pipe
The diameter of mouth.
The pressure surge proof device of steam security valve the most according to claim 3, it is characterised in that: also include the second elbow and
Two vertical tubes, described outlet pipe is connected via the second elbow and the second vertical tube, and the second elbow and the second vertical tube are provided with and give vent to anger
Hole, the end of the second vertical tube is communicated to downcomer.
The pressure surge proof device of steam security valve the most according to claim 5, it is characterised in that: described outlet pipe, second curved
The outside of head and the second vertical tube is equipped with heat-insulation layer.
The pressure surge proof device of steam security valve the most according to claim 5, it is characterised in that: described venthole a diameter of
1mm~2mm。
The pressure surge proof device of steam security valve the most according to claim 1, it is characterised in that: described plug is provided with blowdown
Mouth also connects blow-off pipe by this sewage draining exit, and described blow-off pipe is provided with control valve, and the end of blow-off pipe is communicated to downcomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558151.3U CN205842216U (en) | 2016-06-12 | 2016-06-12 | A kind of pressure surge proof device of steam security valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558151.3U CN205842216U (en) | 2016-06-12 | 2016-06-12 | A kind of pressure surge proof device of steam security valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205842216U true CN205842216U (en) | 2016-12-28 |
Family
ID=58153955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620558151.3U Active CN205842216U (en) | 2016-06-12 | 2016-06-12 | A kind of pressure surge proof device of steam security valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205842216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307157A (en) * | 2018-10-22 | 2019-02-05 | 合肥泽众城市智能科技有限公司 | A kind of steam pipe network water attack Risk Monitoring and pre-warning system and method |
| CN110332452A (en) * | 2019-06-24 | 2019-10-15 | 大唐洛阳热电有限责任公司 | A kind of low level safety door steam trap connection for jet chimney |
-
2016
- 2016-06-12 CN CN201620558151.3U patent/CN205842216U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307157A (en) * | 2018-10-22 | 2019-02-05 | 合肥泽众城市智能科技有限公司 | A kind of steam pipe network water attack Risk Monitoring and pre-warning system and method |
| CN110332452A (en) * | 2019-06-24 | 2019-10-15 | 大唐洛阳热电有限责任公司 | A kind of low level safety door steam trap connection for jet chimney |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |