CN203422274U - Explosion-proof O-shaped ring RGD fixture container - Google Patents
Explosion-proof O-shaped ring RGD fixture container Download PDFInfo
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- CN203422274U CN203422274U CN201320562084.9U CN201320562084U CN203422274U CN 203422274 U CN203422274 U CN 203422274U CN 201320562084 U CN201320562084 U CN 201320562084U CN 203422274 U CN203422274 U CN 203422274U
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Abstract
The utility model discloses an explosion-proof O-shaped ring RGD fixture container, which is reasonable in structure and is precise and safe. The explosion-proof O-shaped ring RGD fixture container comprises an RGD fixture container body, a mounting disk fixedly installed on the side face of the RGD fixture container body, and a sealing plate used for sealing the side face of the RGD fixture container body, wherein a circulation through hole for circulation of a test gas and a test medium is formed in the middle of the mounting disk, and an O-shaped ring mounting ditch groove used for mounting an O-shaped ring is distributed at the outside of the circulation through hole in the mounting disk or on the inner wall of the sealing plate. A sealing manner of combining the mounting disk with the sealing plate is adopted to avoid the problem that high-temperature and high-pressure gas leakage danger easily occurs after single sealing is formed by processing the explosion-proof O-shaped ring into a flat plate, so that the safety of the explosion-proof O-shaped ring RGD fixture container is improved. The O-shaped ring mounting ditch groove is designed on the mounting disk or on the inner wall of the sealing plate to meet the detection requirements of standard RGD test samples and non-standard RGD test samples, greatly reduce the material consumption and the cost and facilitate the maintenance of the O-shaped ring mounting ditch groove after long-term high-temperature and high-pressure alternating fatigue damage.
Description
Technical field
The utility model belongs to petrochemical complex detection technique field, is specifically related to a kind of explosion-proof O type circle RGD tool container.
Background technology
In recent years, affected by the factors such as the economy downturn of the states such as American-European and home costs rising, foreign export situation allows of no optimist.Simultaneously, outlet valve is faced with the challenge of severeer trade technical measures, and its outstanding behaviours is product (high parameter: the special operation conditions such as high temperature, high pressure, overcritical etc. and low temperature, nuclear power) technological innovation is not enough with product detection technique or evaluation method disappearance or be not inconsistent international related standard requirements.
At present, the ratio that the consumption of petrochemical industry valve accounts for the total consumption of valve is over 50%.In recent years, in petrochemical complex gas industry valve, explosion-proof O type circle product and detection technique and evaluation means problem highlight more.As stipulated in API 6D < < oil and gas industrial pipeline induction system pipeline valve > >: pressure is at CL600 (10MPa) and above for the valve of hydrocarbon gas, and its O type circle should be selected explosion-proof O type circle; Total company current techique standard " pipeline valve " regulation: except Class A(is that medium is water, air, nitrogen, fluid oil, temperature is room temperature to 75 ℃, for the operating mode such as pouring water) other outer grades must be by Rapid Gas Decompression (hereinafter to be referred as RGD) or AED (Anti-explosion Decompression) test.At present, the explosion-proof O type cycle basis that domestic petrochemical industry and natural gas high pressure valve adopt this from import, its price is even hundred times of the decades of times of domestic like product.Its main cause is to lack explosion-proof O type circle product quality feedback means (being RGD detection technique) and corresponding examination criteria technical manual system (method), thereby cannot solve the Trade technique difficult problem that petrochemical pipe valve sealing element (O type circle) the High Temperature High Pressure hydrocarbon operating mode to frequent generation lost efficacy and causes, can not effective evaluation this operating mode valve products quality and Continual Improvement.
Leakage problem is all outstanding problem and a difficult problem for valve all the time, the accident majority that the leakage of the petrochemical unit of China, plant equipment etc. causes causes by valve invalidation, and the cause that valve leak lost efficacy just (O type circle, the graphite etc.) inefficacy of its seal adopting and machining accuracy with coordinate backlog demand etc.Therefore, the key that solves valve leak problem is its sealing property, and the key of raising sealing property is choose reasonable, the accurate evaluation (or detection) of O-ring seal and uses.
?rGD(Rapid Gas Compression) detect, its definition is that the inner rapid pressure reduction of bearing device causes infiltrating the media expansion of resilient material (as O type circle) so that the method for inspection of explosion.Its prerequisite is the rate of diffusion that the pressure decreased speed of bearing device inside must be greater than the medium that infiltrates resilient material inside.
?the domestic understanding to RGD detection technique is started late, mainly in recent years along with foreign oil natural gas line valve demand increases year by year, the important indicator that this product has been listed in the use of the explosion-proof O type of high pressure valve circle in is suggested, and RGD detects and also lists one of these series products essential items for inspection in.Since then, some Primary Study have been done by part valve cartel equipment development enterprise, and have prepared RGD checkout equipment, but its RGD tool container exists following shortcoming:
1) inefficacy that on RGD tool container, being squeezed in O type circle trench design engagement process, shearing, quality of fit deficiency etc. cause is obvious, make O type circle precompressed shrinkage be difficult to control and accuracy deficiency, cannot meet the hoop uniformly penetrating of the inflammable dielectric testing process of High Temperature High Pressure to the explosion-proof O type circle of sample, the accuracy, the precompressed shrinkage that are difficult to reach RGD testing result are accurately controlled requirement.
2) on petrochemical industry valve, with explosion-proof O type circle, mostly be and bear interior pressure, and the RGD tool container of domestic existing design takes external-compression type and the trench inner diameter side of being greater than eight product O type circle internal diameters to make explosion-proof O type circle produce elongation strain for the ease of majority is installed, when carry out RGD while detecting under the effect of internal high temperature high-pressure medium, easily produce and be radially expanded or partial cut distortion, cause RGD testing result error greatly or directly lost efficacy.
3) the many employing of explosion-proof O type circle tool container and tool seal pad be take sample (explosion-proof O type circle is seal) and formed dull and stereotyped single sealing, and it easily produces the High Temperature High Pressure gas leakage danger between tool container and tool seal pad when the explosion of sample O type circle after; , on sealing surface, can only test by O type circle of one-step installation, the cycle is long, cost is high to complete RGD detection (5 circulations, an about 48h of circulation, one group 3 O type circles) meanwhile.
Summary of the invention
The object of this invention is to provide a kind of safe explosion-proof O type circle RGD tool container rational in infrastructure, accurate.
For overcoming above-mentioned defect, a kind of explosion-proof O type circle RGD tool container of the utility model comprises RGD tool vessel, is fixedly mounted on the mounting disc on RGD tool vessel side, the seal pad of sealing this side of RGD tool vessel, the centre of described mounting disc offers the circulation through hole for test gas test(ing) medium, at mounting disc upper reaches all outer the or seal pad in hole be distributed with the O type circle installation groove of mounting O-shaped rings on inwall.
Owing to adopting the sealing means of mounting disc and seal pad combination, avoid making dull and stereotyped single sealing with explosion-proof O type circle and easily produce the danger of High Temperature High Pressure gas leakage, the security that has greatly improved explosion-proof O type circle RGD tool container.And due in mounting disc or seal pad design O type circle on inwall groove be installed, meet RGD standard sample (cross-sectional area Φ 6.99 or Φ 5.33, internal diameter Φ 113.67) and non-standard sample RGD detect demand, greatly reduce consumptive material and cost, be convenient to O type circle installation groove and bear the maintenance after the fatigue breakdown of long-time High Temperature High Pressure alternation.If O type circle is installed, groove damage only needs to change mounting disc or seal pad can.
It further improves: described RGD tool vessel is cube shaped.
It further improves: the composition surface of seal pad and RGD tool vessel is also with the second sealing.
It further improves: the end face of RGD tool vessel offers three air inlet, outlet pipe and temperature sensors that are respectively used to RGD tool container and is connected the through hole 6 using.
It further improves: described mounting disc upper reaches all outside hole or seal pad be distributed with several O type circles on inwall grooves be installed, several O type circles are installed grooves with the formal distribution of donut.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of RGD tool container.
Fig. 2 is the structural representation of the second embodiment of RGD tool container.
In Fig. 3 RGD tool container, cut open schematic diagram.
Fig. 4 is A place partial enlarged drawing in Fig. 3.
Embodiment
As shown in Fig. 1, Fig. 3, Fig. 4, a kind of the first embodiment of explosion-proof O type circle RGD tool container, comprise RGD tool vessel 1, be fixedly mounted on the mounting disc 2 on RGD tool vessel 1 side, the seal pad 4 of sealing RGD tool vessel 1 this side, the centre of described mounting disc 2 offers the circulation through hole 3 of Φ 20～Φ 30 for test gas test(ing) medium, the O type circle that is all distributed with three road mounting O-shaped rings at mounting disc 2 upper reaches outside hole 3 is installed groove 5 ，San road O type circles and grooves 5 is installed with donut formal distribution.O type circle is installed by groove and seal pad coordinates formation RGD to detect sealing pair.
The second embodiment as described in Figure 2 and the difference of the first embodiment are: three road O type circles install grooves be opened in seal pad on inwall, three road O type circles are installed groove 5 with donut formal distribution, and O type circle is installed groove and coordinated formation RGD to detect sealing pair with mounting disc.
Above-mentioned two kinds of design proposals all meet RGD standard sample (cross-sectional area Φ 6.99 or Φ 5.33, internal diameter Φ 113.67) and non-standard sample RGD detect demand, realize an one group three O type circles RGD test simultaneously, greatly reduce consumptive material and cost, be convenient to O type circle installation groove and bear the maintenance after the fatigue breakdown of long-time High Temperature High Pressure alternation.If O type circle is installed, groove damage only needs to change mounting disc or seal pad can.
Profile the best of RGD tool vessel 1 should be selected cube, and it can provide three installations, once completes one group three O type circle RGD antiknocks and detects and meet requirement of strength, and can meet internal capacity and be greater than 3L, avoids spillage risk.
The utility model is in order to ensure the sealing of container in RGD testing process, and the composition surface of seal pad 4 and RGD tool vessel 1 is also with the second sealing 7.Be used for guaranteeing RGD testing process, after O type circle Explosive Failure, container, still in sealing state, is avoided spillage risk.
Claims (9)
1. an explosion-proof O type circle RGD tool container, it is characterized in that: comprise RGD tool vessel (1), be fixedly mounted on the mounting disc (2) on RGD tool vessel (1) side, the seal pad (4) of sealing this side of RGD tool vessel (1), the centre of described mounting disc (2) offers the circulation through hole (3) for test gas test(ing) medium, is all distributed with the O type circle installation groove (5) of mounting O-shaped rings at mounting disc (2) upper reaches on the inwall of hole (3) outer or seal pad (4).
2. explosion-proof O type circle RGD tool container according to claim 1, is characterized in that: described RGD tool vessel (1) is cube shaped.
3. explosion-proof O type circle RGD tool container according to claim 1 and 2, is characterized in that: the composition surface of seal pad (4) and RGD tool vessel (1) is also with the second sealing (7).
4. explosion-proof O type circle RGD tool container according to claim 1 and 2, is characterized in that: the end face of RGD tool vessel (1) offers three air inlet, outlet pipe and temperature sensors that are respectively used to RGD tool container and is connected the through hole (6) using.
5. explosion-proof O type circle RGD tool container according to claim 3, is characterized in that: the end face of RGD tool vessel (1) offers three air inlet, outlet pipe and temperature sensors that are respectively used to RGD tool container and is connected the through hole (6) using.
6. explosion-proof O type circle RGD tool container according to claim 1 and 2, it is characterized in that: described mounting disc (2) upper reaches is all distributed with several O type circles on the inwall of hole (3) outer or seal pad (4) grooves (5) are installed, and several O type circles are installed grooves (5) with the formal distribution of donut.
7. explosion-proof O type circle RGD tool container according to claim 3, it is characterized in that: described mounting disc (2) upper reaches is all distributed with several O type circles on the inwall of hole (3) outer or seal pad (4) grooves (5) are installed, and several O type circles are installed grooves (5) with the formal distribution of donut.
8. explosion-proof O type circle RGD tool container according to claim 4, it is characterized in that: described mounting disc (2) upper reaches is all distributed with several O type circles on the inwall of hole (3) outer or seal pad (4) grooves (5) are installed, and several O type circles are installed grooves (5) with the formal distribution of donut.
9. explosion-proof O type circle RGD tool container according to claim 5, it is characterized in that: described mounting disc (2) upper reaches is all distributed with several O type circles on the inwall of hole (3) outer or seal pad (4) grooves (5) are installed, and several O type circles are installed grooves (5) with the formal distribution of donut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562084.9U CN203422274U (en) | 2013-09-10 | 2013-09-10 | Explosion-proof O-shaped ring RGD fixture container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562084.9U CN203422274U (en) | 2013-09-10 | 2013-09-10 | Explosion-proof O-shaped ring RGD fixture container |
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| CN203422274U true CN203422274U (en) | 2014-02-05 |
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|---|---|---|---|
| CN201320562084.9U Expired - Fee Related CN203422274U (en) | 2013-09-10 | 2013-09-10 | Explosion-proof O-shaped ring RGD fixture container |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941618A (en) * | 2017-05-09 | 2018-04-20 | 温州瓯宏密封件有限公司 | O-ring knock test system and its test method |
-
2013
- 2013-09-10 CN CN201320562084.9U patent/CN203422274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941618A (en) * | 2017-05-09 | 2018-04-20 | 温州瓯宏密封件有限公司 | O-ring knock test system and its test method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20140205 Termination date: 20160910 |