CN105179720A - Blind plate for high-pressure testing of valve - Google Patents
Blind plate for high-pressure testing of valve Download PDFInfo
- Publication number
- CN105179720A CN105179720A CN201510698092.XA CN201510698092A CN105179720A CN 105179720 A CN105179720 A CN 105179720A CN 201510698092 A CN201510698092 A CN 201510698092A CN 105179720 A CN105179720 A CN 105179720A
- Authority
- CN
- China
- Prior art keywords
- valve
- hole
- inner core
- pressure testing
- ring groove
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
Abstract
The invention discloses a blind plate for high-pressure testing of a valve. The blind plate comprises an outer plate body, an inner core and an injection hole, wherein the outer plate body is fixedly connected with the valve through a bolt or pressed by a pressing device to be forced to make close contact with the valve, the inner core is integrally formed in the middle of the inner side face of the outer plate body and capable of being inserted into a valve port of the valve in a matched mode, the injection hole penetrates through the outer plate body and the inner core, an annular groove is formed in the outer periphery of the inner core, a sealing ring is embedded in the annular groove, and at least one through hole is formed between the annular groove and the injection hole. The blind plate is simple in structure, adaptable to valves of various types including the flange type and the welding type, and compatible with various installation methods. The sealing ring and the injection port between the inner core and the valve are communicated through the through hole, and the higher the pressure of the injection port is, the force of a medium squeezing the O-shaped ring is larger, sealing is tighter, and sealing performance is better.
Description
Technical field
The present invention relates to technical field of valve manufacturing, particularly relate to a kind of valve high pressure PRESSURE TESTING BLIND FLANGE.
Background technique
In pipeline construction, the whether qualified of valve seal performance counts for much.The method that value pressure test adopted in the past loads onto corresponding blind plate at pressure testing valve two ends, connects fastening respectively, this pressure testing method of construction, need a large amount of human and material resources and duration to carry out pressure testing with bolt.The bolt of a valve reaches twenty or thirty, tightens one by one, time-consumingly takes a lot of work, and often can not ensure enough valve installations, directly affect construction speed.Bolton pressurization is easily subject to the impact of the screw thread quality of bolt own, can not ensure that the institute of sealing surface a little all pressurizes and put in place, have impact on Detection job.And, even if be in place by bolt, when carrying out high pressure examination water, still face the leakage problem that seal ring pressure-bearing causes too greatly.
Wherein, for welding valve, although there is not above-mentioned installation question, sealing problem under high pressure still exists.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and a kind of valve high pressure PRESSURE TESTING BLIND FLANGE is provided.
The technological scheme adopted for realizing object of the present invention is:
A kind of valve high pressure PRESSURE TESTING BLIND FLANGE, comprise and to be bolted to connection with valve or compacted device compresses the outside plate forcing itself and valve close contact, be integrally formed in the inner core that also can mate the valve port inside of the valve described in insertion in the middle part of described outside plate inner side surface, and run through described outside plate and the hand-hole of inner core, described inner core outer circumferential face is formed with ring groove, in described ring groove, be embedded with seal ring, between described ring groove and water injection hole, be provided with at least one through hole.
The quantity of described through hole is 4-12 that evenly arranges.
The cross section of described ring groove is rectangle, and the cross section of described seal ring is circular.
Described ring groove and described through hole corresponding part are provided with spheric recess.
Compared with prior art, the invention has the beneficial effects as follows:
High pressure PRESSURE TESTING BLIND FLANGE structure of the present invention is simple, be applicable to the valve of the various ways such as flange-type or welding valve, support various mounting type, through hole is utilized to be communicated with inlet by the seal ring between inner core with valve, when the pressure of inlet is higher, the ability of medium squeeze 0 type circle is stronger, and seal tighter, sealability is better.
Accompanying drawing explanation
Figure 1 shows that the structural representation of valve high pressure PRESSURE TESTING BLIND FLANGE of the present invention;
Described in Fig. 2 is the cross section structure schematic diagram shown in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As depicted in figs. 1 and 2, valve high pressure PRESSURE TESTING BLIND FLANGE of the present invention comprises and being bolted to connection or compacted device with valve, the outside plate 4 of itself and valve close contact is made as oil cylinder or jack are isobaric urgent, the inner core 5 of the valve port inside of the valve described in insertion also can be mated in the middle part being integrally formed in described outside plate 4 inner side surface, and run through the hand-hole 3 of described outside plate and inner core, described inner core outer circumferential face is formed with ring groove 1, seal ring (not shown) is embedded with in described ring groove, at least one through hole 3 is provided with between described ring groove and water injection hole.Depending on the size of valve, the quantity of through hole is variant, and larger quantity is more, the quantity of general described through hole is 4-12 that evenly arranges, and as 4 or 8, it is different and different that its concrete quantity looks valve size, if desired completely can more than 12, described through hole can straight hole or inclined hole etc.
High pressure PRESSURE TESTING BLIND FLANGE structure of the present invention is simple, be applicable to the valve of the various ways such as flange-type or welding valve, support various mounting type, blind plate two-part role in pressure testing process is different, inner core 5 sealed valve two ends latus rectum, outside plate 4 transmits and is tamping the pressure of two latus rectums from hydraulic test pump or directly specifies to be connected or to be bolted by the blind plate of both sides and to be clamped by valve by bolt and valve.Utilize through hole to be communicated with inlet by the seal ring between inner core with valve, when the pressure of inlet is higher, the ability of medium squeeze 0 type circle is stronger, and seal tighter, sealability is better.
Further, for expanding through hole to the squeezing effect of seal ring, the cross section of described ring groove is rectangle, and the cross section of described seal ring is circular.Or described ring groove and described through hole corresponding part are provided with spheric recess.Retain the set-up mode of predetermined interval simultaneously, the amount of the medium flowing into ring groove from through hole can be increased, reduce the pressure reduction of seal ring, ensure sealing effect.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a valve high pressure PRESSURE TESTING BLIND FLANGE, it is characterized in that, comprise and to be bolted to connection with valve or compacted device compresses the outside plate forcing itself and valve close contact, be integrally formed in the inner core that also can mate the valve port inside of the valve described in insertion in the middle part of described outside plate inner side surface, and run through described outside plate and the hand-hole of inner core, described inner core outer circumferential face is formed with ring groove, in described ring groove, be embedded with seal ring, between described ring groove and water injection hole, be provided with at least one through hole.
2. valve high pressure PRESSURE TESTING BLIND FLANGE as claimed in claim 1, is characterized in that, the quantity of described through hole is 4-12 that evenly arranges.
3. valve high pressure PRESSURE TESTING BLIND FLANGE as claimed in claim 1, it is characterized in that, the cross section of described ring groove is rectangle, and the cross section of described seal ring is circular.
4. valve high pressure PRESSURE TESTING BLIND FLANGE as claimed in claim 1, is characterized in that, described ring groove and described through hole corresponding part are provided with spheric recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698092.XA CN105179720A (en) | 2015-10-23 | 2015-10-23 | Blind plate for high-pressure testing of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698092.XA CN105179720A (en) | 2015-10-23 | 2015-10-23 | Blind plate for high-pressure testing of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179720A true CN105179720A (en) | 2015-12-23 |
Family
ID=54902020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510698092.XA Pending CN105179720A (en) | 2015-10-23 | 2015-10-23 | Blind plate for high-pressure testing of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566681A (en) * | 2019-09-17 | 2019-12-13 | 太原科技大学 | ultrahigh pressure stop valve |
-
2015
- 2015-10-23 CN CN201510698092.XA patent/CN105179720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566681A (en) * | 2019-09-17 | 2019-12-13 | 太原科技大学 | ultrahigh pressure stop valve |
| CN110566681B (en) * | 2019-09-17 | 2022-02-25 | 太原科技大学 | Ultrahigh pressure stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |