CN106644304A - Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector - Google Patents
Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector Download PDFInfo
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- CN106644304A CN106644304A CN201510735298.5A CN201510735298A CN106644304A CN 106644304 A CN106644304 A CN 106644304A CN 201510735298 A CN201510735298 A CN 201510735298A CN 106644304 A CN106644304 A CN 106644304A
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- blowoff valve
- leakage
- delivery outlet
- leak detector
- connecting seat
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Abstract
The invention discloses a vacuum feces-collection device leakage detector for a railway vehicle, and the leakage detector is in airtight connection with an output port of a blow-down valve, so as to detect whether the blow-down valve is leaked or not. The leakage detector comprises a connection seat, and an air pressure meter connected to the connection seat. The connection seat is used for airtight connection with the output port of the blow-down valve, and the air pressure meter is used for displaying the air pressure of the output port of the blow-down valve sealed by the connection seat. The invention also discloses a quick leakage detection method for a leakage fault of a vacuum feces-collection device of the railway vehicle. The method comprises the specific steps: firstly inspecting the blow-down valve on a sewage tank; secondly inspecting other parts of a vacuum system in the vacuum feces-collection device after the blow-down valve is determined to have no leakage. The detector and method can determine the causes of 90% (or more) of leakage faults of the vacuum feces-collection device visually and quickly in real time, thereby improving the inspection efficiency of the leakage faults, and reducing the labor intensity of a maintainer.
Description
Technical field
The present invention relates to a kind of leak detector for being detected with the presence or absence of leakage to the vacuum feces collecting device on rolling stock, and a kind of quick investigation method of vacuum feces collecting device leakage failure.
Background technology
With the renewal of technology, vacuum feces collecting device on rolling stock, is increasingly employed.Even if the extraordinary vacuum sewage treatment system as disclosed in publication No. CN104029691A Chinese invention patent application.The dirt in closet is drawn in its dirt box using negative pressure of vacuum when being worked due to this vacuum feces collecting device, therefore, make in dirt box, to keep the premise that the vacuum for setting is that vacuum feces collecting device is able to normal work.
As the vacuum system in vacuum feces collecting device is related to all too many levels such as dirt box, air water control device, connecting pipe, control valve, vacuum generator, once vacuum feces collecting device cisco unity malfunction because of leakage, maintainer needs to spend to carry out investigation to find leakage point for one or two hour to whole vacuum system, therefore, for the solution of vacuum feces collecting device leakage failure, prior art has that big workload, time length, efficiency are low.
The content of the invention
Present inventor is had found through investigation, the leakage more than 90% of the vacuum feces collecting device on rolling stock is caused due to the blowoff valve leakage on dirt box, surely when there is leakage in empty shit gathering equipment, first check whether the blowoff valve on dirt box leaks, more than 90% be can determine that the reason for leak, so as to shorten the time of malfunction elimination, maintenance efficiency is improved.Therefore, applicant proposes a kind of rolling stock vacuum feces collecting device leak detector, and a kind of quick investigation method of vacuum feces collecting device leakage failure.
Technical scheme is as follows:
A kind of rolling stock vacuum feces collecting device leak detector, the vacuum feces collecting device carry dirt box, and blowoff valve is provided with dirt box, and the leak detector is detected with the presence or absence of leakage to blowoff valve by being tightly connected with blowoff valve delivery outlet;The leak detector includes connecting seat and the air gauge for connecting thereon, wherein, connecting seat for being tightly connected with the blowoff valve delivery outlet, air gauge be used for show it is connected it is setting close after blowoff valve delivery outlet air pressure.
Further, the blowoff valve delivery outlet is provided with delivery outlet pipeline section, and the composition surface for the airtight pressured engagement with the end face of the delivery outlet pipeline section is provided with the connecting seat.
Further, flexible material layer or flexible gasket are provided with the composition surface.
Further, the composition surface is the annular corresponding with the end face of the delivery outlet pipeline section, composition surface is provided with several interface arrangments on the connecting seat, the interface arrangment includes bearing, bearing pin, dop, dop is may be rotatably mounted on the bearing by the bearing pin, annular groove is provided with delivery outlet pipeline section wall outer surface, the dop is realized being connected with the annular groove clamping by swinging around the bearing pin, and while clamping connects connecting seat is mutually fixed with delivery outlet pipeline section.
Further, operation handle is carried on the dop.
Further, the connecting seat is one end open, the tubular of one end closing, cylinder is provided with ring-shaped flexible seal pad on bottom, thus constitute the composition surface, the air gauge is arranged on the lateral surface of cylinder bottom by connecting tube, the bearing in the interface arrangment is integrally made on the side wall of tubular connecting seat, the through hole that the dop in being provided with for interface arrangment on the side wall of tubular connecting seat is passed through.
Further, fender bracket is provided with the lateral surface of the cylinder bottom, the fender bracket is made up of protection ring and several poles, and protection ring is fixed on a bottom lateral surface by spaced several strut supports, the air gauge is located in the fender bracket.
Further, the barometric dial plate is parallel with the lateral surface at the cylinder bottom and arranges back to cylinder bottom lateral surface.
A kind of quick-speed leak detection method of rolling stock vacuum feces collecting device leakage failure, specially:
Surely when leakage failure occurs in empty shit gathering equipment, first the blowoff valve on dirt box is checked, and after it is determined that blowoff valve does not have leakage, then other positions of vacuum system in vacuum feces collecting device is investigated.
Further, the checking step of the blowoff valve is specially:In the case of will be blowoff valve delivery outlet hermetic closed, be monitored using the air pressure of blowoff valve delivery outlet of the air gauge to being hermetically closed, and by it is barometric display come determine blowoff valve with the presence or absence of leakage.
The reason for can in real time, intuitively, fast determining more than 90% vacuum feces collecting device leakage failure using leak hunting method of the present invention, so as to improve the investigation efficiency of leakage failure, reduces the labor intensity of maintainer.Leak hunting method of the present invention is applied to into the current check of rolling stock vacuum feces collecting device, the leakage hidden danger of more than 90% vacuum feces collecting device can be excluded in time then, both vacuum feces collecting device normal work had been ensured, the blowoff valve that there is leakage problem can also repaired in time, to avoid resulting in greater loss.
Description of the drawings
Fig. 1 is the structural representation of existing passenger train vacuum feces collecting device dirt box;
Fig. 2 is the structural representation of leak detector embodiment of the present invention 1;
Top views of the Fig. 3 for Fig. 2 embodiments 1;
Use state schematic diagrams of the Fig. 4 for embodiment 1;
Structural representations of the Fig. 5 for the embodiment of the present invention 2.
Specific embodiment
The present invention is elaborated with reference to embodiment.
Leak detector of the present invention is used for the leakage of rolling stock vacuum feces collecting device and investigates, and the leak detector is connected by airtight with the blowoff valve delivery outlet on dirt box, and realization is checked with the presence or absence of leakage to blowoff valve.
Fig. 2, Fig. 3 show leak detector embodiment of the present invention 1.
As shown in FIG., the leak detector includes connecting seat 4, and connecting seat 4 is one end open, the tubular of one end closing, and ring-shaped flexible seal pad 7 is provided with cylinder bottom, and cylinder bottom is provided centrally with screwed hole, and is provided with air gauge 5 by the screwed hole.On the side wall of tubular connecting seat 4, symmetrical its tubular axle center is provided with two interface arrangments, the interface arrangment includes bearing 9, bearing pin 10, dop 11, bearing 9 is integrally made on the side wall of tubular connecting seat 4, dop 11 is may be rotatably mounted on bearing 9 by bearing pin 10, and being capable of the radially wobbling along 4 cylinder of tubular connecting seat around bearing pin 10, operation handle 11.1 is carried on dop 11, the through hole passed through for dop 11 is provided with the side wall of tubular connecting seat 4.
The dial plate of air gauge 5 is arranged back to the lateral surface at the cylinder bottom of tubular connecting seat 4.
Fender bracket 6 is provided with the lateral surface at 4 bottoms of tubular connecting seat, the fender bracket 6 is made up of four poles 6.2 of ring 6.1 and connection ring 6.1 and cylinder bottom lateral surface, and four poles 6.2 are spaced along ring 6.1, air gauge 5 is located in fender bracket 6.
As shown in Figure 4, when the leak detector of embodiment 1 is used, the handle 11.1 of two dops 11 is moved first, dop 11 is made to exit the inner chamber of tubular connecting seat 4 in radial direction completely, then by the delivery outlet pipeline section 3 of 4 sets of blowoff valves 2 being attached on dirt box 1 of connecting seat, and the pressured engagement of end face of sealing gasket 7 and delivery outlet pipeline section 3 is made, subsequently rotate two dops 11 and snapped in the annular groove 3.1 on delivery outlet pipeline section 3, and thus leak detector is mutually fixed with delivery outlet pipeline section 3.
With sealing gasket 7 and the pressured engagement of end face of delivery outlet pipeline section 3, thus will be the delivery outlet pipeline section 3 of blowoff valve 2 hermetic closed, air gauge 5 is then by the intracavity inter-connection of screwed hole of centre and delivery outlet pipeline section 3 on 4 bottoms of tubular connecting seat.
Now, if blowoff valve 2 cuts out well, without leaking, the numerical value of air gauge 5 will not change;And if blowoff valve 2 is not closed completely and there is leakage, the numerical value of air gauge 5 will appear from change, and in real time, intuitively indicate that blowoff valve 2 has leakage.
On tubular connecting seat 4, fender bracket 6 is interior except air gauge 5 is enclosed in, and outside preventing which from being collided with, the fender bracket 6 also simultaneously as hand held structures during operation, provides facility for using for leak detector.
Fig. 5 is the embodiment 2 of leak detector of the present invention, and compared with Example 1, the direction of operating of the dop 11 of embodiment 2 is contrary.Dop 11 in Fig. 5 in delivery outlet pipeline section 3 on the state that departs from of annular groove 3.1, dop 11 downwardly turns over, and will enter the state with 3.1 clamping of annular groove.Referring to Fig. 4, the dop 11 in embodiment 1 is flipped up into the state with 3.1 clamping of annular groove, is downwardly turned over, the state that entrance is departed from annular groove 3.1.
In addition, the embodiment of leak detector of the present invention is in addition to above-mentioned two embodiment, various different embodiments are made after comprehension inventive concept including those of ordinary skill in the art also, connecting seat 4 if do not adopted tubular, such as dop 11 is made to realize automatic clamping, etc. by arranging back-moving spring.
Used as the quick-speed leak detection method of rolling stock vacuum feces collecting device leakage failure, the core of the inventive method is:Surely when leakage failure occurs in empty shit gathering equipment, first the blowoff valve on dirt box is checked, and after it is determined that blowoff valve does not have leakage, then other positions of vacuum system in vacuum feces collecting device is investigated.So, it may be determined that the reason for more than 90% vacuum feces collecting device is leaked, the workload of maintainer is reduced, leakage investigation efficiency is improved, is improved maintenance efficiency.
In addition to the leak detector shown in embodiment 1, quick-speed leak detection method of the present invention can also use the leak detector of other appropriate formats.
In the past only when leakage failure, cisco unity malfunction occurs in rolling stock vacuum feces collecting device, maintenance and inspection are carried out to which, and current check is carried out using the inventive method, the leakage hidden danger of more than 90% vacuum feces collecting device can be excluded in time then, both vacuum feces collecting device normal work had been ensured, the blowoff valve that there is leakage problem can also repaired in time, to avoid resulting in greater loss.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the illustrative embodiments for adopting, the invention is not limited in this.For those skilled in the art, in the case of the principle and essence without departing from the present invention, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (12)
1. a kind of rolling stock vacuum feces collecting device leak detector, it is characterised in that the vacuum feces collecting device carries dirt box, and blowoff valve is provided with dirt box, and the leak detector is detected with the presence or absence of leakage to blowoff valve by being tightly connected with blowoff valve delivery outlet;The leak detector includes connecting seat and the air gauge for connecting thereon, wherein, connecting seat for being tightly connected with the blowoff valve delivery outlet, air gauge be used for show it is connected it is setting close after blowoff valve delivery outlet air pressure.
2. leak detector as claimed in claim 1, it is characterised in that the blowoff valve delivery outlet is provided with delivery outlet pipeline section, is provided with the composition surface for the airtight pressured engagement with the end face of the delivery outlet pipeline section on the connecting seat.
3. leak detector as claimed in claim 2, it is characterised in that flexible material layer or flexible gasket are provided with the composition surface.
4. leak detector as claimed in claim 2, it is characterized in that, the composition surface is the annular corresponding with the end face of the delivery outlet pipeline section, composition surface is provided with several interface arrangments on the connecting seat, the interface arrangment includes bearing, bearing pin, dop, dop is may be rotatably mounted on the bearing by the bearing pin, annular groove is provided with delivery outlet pipeline section wall outer surface, the dop is realized being connected with the annular groove clamping by swinging around the bearing pin, and while clamping connects connecting seat is mutually fixed with delivery outlet pipeline section.
5. leak detector as claimed in claim 4, it is characterised in that operation handle is carried on the dop.
6. leak detector as claimed in claim 4, it is characterized in that, the connecting seat is one end open, the tubular of one end closing, cylinder is provided with ring-shaped flexible seal pad on bottom, thus constitute the composition surface, the air gauge is arranged on the lateral surface of cylinder bottom by connecting tube, and the bearing in the interface arrangment is integrally made on the side wall of tubular connecting seat, the through hole that the dop in being provided with for interface arrangment on the side wall of tubular connecting seat is passed through.
7. leak detector as claimed in claim 5; characterized in that, being provided with fender bracket on the lateral surface of the cylinder bottom, the fender bracket is made up of protection ring and several poles; protection ring is fixed on a bottom lateral surface by spaced several strut supports, and the air gauge is located in the fender bracket.
8. leak detector as claimed in claim 7, it is characterised in that the barometric dial plate is parallel with the lateral surface at the cylinder bottom and arranges back to cylinder bottom lateral surface.
9. a kind of quick-speed leak detection method of rolling stock vacuum feces collecting device leakage failure, specially:
Surely when leakage failure occurs in empty shit gathering equipment, first the blowoff valve on dirt box is checked, and after it is determined that blowoff valve does not have leakage, then other positions of vacuum system in vacuum feces collecting device is investigated.
10. leak hunting method as claimed in claim 9, it is characterised in that the checking step of the blowoff valve is specially:In the case of will be blowoff valve delivery outlet hermetic closed, be monitored using the air pressure of blowoff valve delivery outlet of the air gauge to being hermetically closed, and by it is barometric display come determine blowoff valve with the presence or absence of leakage.
11. leak hunting methods as claimed in claim 9, it is characterised in that hunted leak using the arbitrary leak detector of claim 1-8.
A kind of 12. rolling stock vacuum feces collecting device current check methods, the method utilize the arbitrary leak detector of claim 1-8 or the arbitrary methods described of claim 9-11 to carry out current check to rolling stock vacuum feces collecting device.
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CN201510735298.5A CN106644304A (en) | 2015-11-03 | 2015-11-03 | Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector |
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CN201510735298.5A CN106644304A (en) | 2015-11-03 | 2015-11-03 | Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector |
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CN201510735298.5A Pending CN106644304A (en) | 2015-11-03 | 2015-11-03 | Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11162868B2 (en) | 2019-04-19 | 2021-11-02 | Alstom Transport Technologies | Vacuum toilet system with leak detection means |
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CN1220363A (en) * | 1997-12-18 | 1999-06-23 | 特雷菲梅特奥克斯 | High temp. airtight detachable pipe connector, connecting method and its use |
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CN103278297A (en) * | 2013-06-07 | 2013-09-04 | 山东沂蒙电力设备有限公司 | Testing device of transformer pressure relief valve |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US11162868B2 (en) | 2019-04-19 | 2021-11-02 | Alstom Transport Technologies | Vacuum toilet system with leak detection means |
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