CN210636462U - Double-manhole valve well - Google Patents
Double-manhole valve well Download PDFInfo
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- CN210636462U CN210636462U CN201921303538.4U CN201921303538U CN210636462U CN 210636462 U CN210636462 U CN 210636462U CN 201921303538 U CN201921303538 U CN 201921303538U CN 210636462 U CN210636462 U CN 210636462U
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Abstract
The utility model discloses a double-manhole valve well, which comprises a well body, wherein the side wall of the well body and a top cover are integrally formed, two manholes are arranged on the top cover, a well neck is fixedly connected on the top cover outside the manhole, and a manhole cover is movably connected at the top of the well neck; the top cover is provided with a vent, the inner side of the top cover is fixed with a draught fan, the air inlet of the draught fan is communicated with the vent, and a gas alarm instrument is arranged in the well body. The utility model has the advantages that the top cover of the valve well is provided with two manholes, and the bottom of the top cover is provided with the draught fan, so that the ventilation effect is good, and the smooth breathing of the working personnel is ensured; when danger occurs in the well, a plurality of workers can escape from different manholes simultaneously, so that the time consumed by escape is shortened, and the safety is high; 2. install gas composition detection device in the valve well, can send out the police dispatch newspaper when the inside oxygen of valve well is not enough or dangerous gas concentration is high, avoid the staff to delay the opportunity of fleing.
Description
The technical field is as follows:
the utility model relates to a valve well, concretely relates to double manhole valve well.
Background art:
the valve of underground pipeline such as running water, oil, natural gas line can be installed in the valve well for conveniently opening, closing or examining and repairing the operation when needs, can set up a manhole on the top cap of valve well, makes things convenient for the staff to pass in and out the valve well. The valve well is internally provided with a relatively closed space, and only the manhole can be used for exhausting and ventilating.
For a traditional large natural gas valve well, the following problems exist in the using process: 1. only one manhole is arranged on the manhole cover, and after workers enter the valve well, the ventilation effect is poor, oxygen deficiency is easy to occur, and the health of the workers is damaged; when danger occurs in the well, if more than two workers exist in the well and only one manhole is provided, the workers cannot escape at the same time, the escape time can be delayed, and the danger is high; 2. the gas detection alarm instrument is not arranged in the valve well, when workers go into the well, if gas leaks, the gas is not easy to be perceived in a trace manner, and the gas amount possibly reaches the degree of threatening health when the workers perceive the gas leakage; 3. the manhole cover and the valve well are designed to be separated and easy to lose, and after workers go into the well, the opened manhole cover is easily closed by other people by mistake, so that the workers are trapped in the well.
The utility model has the following contents:
an object of the utility model is to provide a have two manholes, the good double-manhole valve well of ventilation effect in the valve well.
The utility model discloses by following technical scheme implement: the double-manhole valve well comprises a well body, wherein the side wall of the well body and a top cover are integrally formed, two manholes are formed in the top cover, a well neck is fixedly connected to the top cover on the outer side of each manhole, and a manhole cover is movably connected to the top of the well neck;
the top cover is provided with a vent hole, an induced draft fan is fixed on the inner side of the top cover, an air inlet of the induced draft fan is communicated with the vent hole, a filter screen is arranged on the inner side of the vent hole, the edge of the filter screen is fixedly connected with the inner wall of the top cover, and a vent cover covers the outer side of the vent hole;
and a gas alarm is arranged in the well body.
Furthermore, one side of the manhole cover is hinged with the manhole neck.
Furthermore, the bottom of the manhole cover is hinged with a support frame, and a support frame fixing hole is formed in the side wall of the top of the manhole neck.
Furthermore, an air dryer is connected to the air outlet end of the induced draft fan.
Further, the well body is the cuboid form, two the manhole is followed the diagonal direction setting of top cap, two the manhole is close to respectively the both ends of the diagonal of top cap.
Furthermore, the well body is cylindrical, the two manholes are centrosymmetric around the center of the circle of the top cover, and the manholes are close to the side wall of the well body.
Furthermore, a crawling ladder is arranged on the side wall of the well body below the manhole, and a water collecting pit is arranged at the bottom of the well body.
The utility model has the advantages that: 1. two manholes are formed in the top cover of the valve well, and the bottom of the top cover is connected with an induced draft fan, so that the ventilation effect inside the well body is good, and smooth breathing of workers is guaranteed; when danger occurs in the well, if more than two workers are underground, the workers can escape from different manholes simultaneously, so that the time consumed by escape is shortened, and the safety is high; 2. the valve well is internally provided with a gas component detection device, when workers go into the well, the gas component detection device can monitor the oxygen concentration and the dangerous gas concentration in real time, and can give an alarm when the oxygen inside the valve well is insufficient or the dangerous gas concentration is high, so that the workers are prevented from delaying the escape time; 3. the manhole cover is hinged with the well neck, so that the manhole cover is not easy to disassemble and is prevented from being lost; after the staff went into the well, the manhole cover was opened, supported fixedly through the support frame, avoided because the manhole cover is blown down or other people mistake are closed and lead to the staff to be stranded in the well by wind.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a plan view of the present invention in example 1;
fig. 2 is a cross-sectional view of the present invention of embodiment 1;
fig. 3 is a plan view of the present invention in embodiment 2;
fig. 4 is a cross-sectional view of the present invention of embodiment 2.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-2, the double-manhole valve well comprises a cuboid-shaped well body 1, wherein the side wall of the well body 1 and a top cover 2 are integrally formed, two manholes are arranged in the diagonal direction of the top cover 2 and are respectively close to two ends of the diagonal of the top cover 2, a ladder stand 13 is arranged on the side wall of the well body 1 below the manhole, and a sump 14 is arranged at the bottom of the well body 1.
The manhole cover is characterized in that a manhole neck 3 is fixedly connected to the top cover 2 on the outer side of the manhole, a manhole cover 4 is hinged to the top of the manhole neck 3, a support frame 10 is hinged to the bottom of the manhole cover 4, and a support frame fixing hole 11 is formed in the side wall of the top of the manhole neck 3.
The top cover 2 is provided with a vent 5, a filter screen 7 is arranged on the inner side of the vent 5, the filter screen 7 can prevent impurities in the outside air from entering the well body 1, the edge of the filter screen 7 is fixedly connected with the inner wall of the top cover 2, and a vent cover 8 covers the outer side of the vent 5; an induced draft fan 6 is fixed on the inner side of the top cover 2, an air inlet of the induced draft fan 6 is communicated with the vent 5, and an air dryer 12 is connected to an air outlet end of the induced draft fan 6, so that the phenomenon that air entering the well body 1 is too high in humidity and causes corrosion and damage to a valve is prevented.
A gas alarm 9 is arranged inside the well body 1.
The working principle is as follows:
before entering the well body 1, the manhole cover 4 is opened, the support frame 10 is rotated, the end part of the support frame 10 is inserted into the support frame fixing hole 11 on the side wall of the top of the well neck 3, and the manhole cover 4 is hinged with the well neck 3, so that the manhole cover is not easy to detach and is prevented from being lost; after the workers go into the well, the manhole cover 4 is opened and is supported and fixed through the support frame 10, so that the workers are prevented from being trapped in the well due to the fact that the manhole cover 4 is blown down by wind or is closed by other people by mistake; after the manhole cover 4 is fixed, the ventilating cover 8 is opened, the draught fan 6 and the dryer are started, the well body 1 is ventilated, two manholes are arranged in the diagonal direction of the top cover 2 and are respectively close to two ends of the diagonal of the top cover 2, so that each position in the well body 1 can be quickly ventilated, the draught fan 6 is connected to the bottom of the top cover 2, the ventilating effect in the well body 1 is good, and smooth breathing of workers is guaranteed;
the staff is equipped with cat ladder 13 through 1 bottom of well body on the lateral wall of well body, overhauls the valve, and the gas alarm instrument 9 of 1 inside of the well body carries out real time monitoring to oxygen content, toxic gas content in the air of 1 inside of the well body among the maintenance process, crosses when low or toxic gas content is too high when oxygen content, and gas alarm instrument 9 can send the police dispatch newspaper, reminds the staff to leave, avoids the staff to delay the opportunity of fleing.
When danger happens inside the well body 1 and people need to escape, a plurality of workers can escape from different manholes simultaneously, the time consumed by escape is shortened, and the safety is high.
Example 2:
as shown in fig. 3-4, the double-manhole valve well comprises a cylindrical well body 1, wherein the side wall of the well body 1 and a top cover 2 are integrally formed, two manholes are arranged on the top cover 2, the two manholes are centrosymmetric about the circle center of the top cover 2, the manholes are close to the side wall of the well body 1, a ladder 13 is arranged on the side wall of the well body 1 below the manholes, and a sump 14 is arranged at the bottom of the well body 1.
The manhole cover is characterized in that a manhole neck 3 is fixedly connected to the top cover 2 on the outer side of the manhole, a manhole cover 4 is hinged to the top of the manhole neck 3, a support frame 10 is hinged to the bottom of the manhole cover 4, and a support frame fixing hole 11 is formed in the side wall of the top of the manhole neck 3.
The top cover 2 is provided with a vent 5, a filter screen 7 is arranged on the inner side of the vent 5, the filter screen 7 can prevent impurities in the outside air from entering the well body 1, the edge of the filter screen 7 is fixedly connected with the inner wall of the top cover 2, and a vent cover 8 covers the outer side of the vent 5; an induced draft fan 6 is fixed on the inner side of the top cover 2, an air inlet of the induced draft fan 6 is communicated with the vent 5, and an air dryer 12 is connected to an air outlet end of the induced draft fan 6, so that the phenomenon that air entering the well body 1 is too high in humidity and causes corrosion and damage to a valve is prevented.
A gas alarm 9 is arranged inside the well body 1.
The working principle is as follows:
before entering the well body 1, the manhole cover 4 is opened, the support frame 10 is rotated, the end part of the support frame 10 is inserted into the support frame fixing hole 11 on the side wall of the top of the well neck 3, and the manhole cover 4 is hinged with the well neck 3, so that the manhole cover is not easy to detach and is prevented from being lost; after the workers go into the well, the manhole cover 4 is opened and is supported and fixed through the support frame 10, so that the workers are prevented from being trapped in the well due to the fact that the manhole cover 4 is blown down by wind or is closed by other people by mistake; after the manhole cover 4 is fixed, the ventilating cover 8 is opened, the induced draft fan 6 and the dryer are started, the well body 1 is ventilated, the top cover 2 is provided with two manholes which are symmetrical with each other about the center of the circle of the top cover 2, the manholes are close to the side wall of the well body 1, so that each position in the well body 1 can be quickly ventilated, the bottom of the top cover 2 is connected with the induced draft fan 6, the ventilating effect in the well body 1 is good, and smooth breathing of workers is guaranteed;
the staff is equipped with cat ladder 13 through 1 bottom of well body on the lateral wall of well body, overhauls the valve, and the gas alarm instrument 9 of 1 inside of the well body carries out real time monitoring to oxygen content, toxic gas content in the air of 1 inside of the well body among the maintenance process, crosses when low or toxic gas content is too high when oxygen content, and gas alarm instrument 9 can send the police dispatch newspaper, reminds the staff to leave, avoids the staff to delay the opportunity of fleing.
When danger happens inside the well body 1 and people need to escape, a plurality of workers can escape from different manholes simultaneously, the time consumed by escape is shortened, and the safety is high.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The double-manhole valve well is characterized by comprising a well body, wherein the side wall of the well body and a top cover are integrally formed, two manholes are formed in the top cover, a well neck is fixedly connected to the top cover on the outer side of each manhole, and a manhole cover is movably connected to the top of the well neck;
the top cover is provided with a vent hole, an induced draft fan is fixed on the inner side of the top cover, an air inlet of the induced draft fan is communicated with the vent hole, a filter screen is arranged on the inner side of the vent hole, the edge of the filter screen is fixedly connected with the inner wall of the top cover, and a vent cover covers the outer side of the vent hole;
and a gas alarm is arranged in the well body.
2. The double manhole valve well of claim 1, wherein one side of the manhole cover is hinged to the well neck.
3. The double manhole valve well of claim 1, wherein a support frame is hinged to the bottom of the manhole cover, and a support frame fixing hole is formed in a side wall of the top of the well neck.
4. The double manhole valve well of claim 1, wherein an air dryer is connected to an air outlet end of the induced draft fan.
5. A double manhole valve well as claimed in claim 1, wherein the well body is rectangular, two of the manholes are provided along a diagonal of the top cover, and the two manholes are respectively close to both ends of the diagonal of the top cover.
6. A double manhole valve shaft as claimed in claim 1, wherein the shaft is cylindrical, the two manholes are centrally symmetrical about the centre of the top cover, and the manholes are located adjacent to the side walls of the shaft.
7. A double manhole valve well as claimed in claim 1, wherein a ladder is provided on the sidewall of the well body below the manhole, and a sump is provided at the bottom of the well body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303538.4U CN210636462U (en) | 2019-08-12 | 2019-08-12 | Double-manhole valve well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303538.4U CN210636462U (en) | 2019-08-12 | 2019-08-12 | Double-manhole valve well |
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| Publication Number | Publication Date |
|---|---|
| CN210636462U true CN210636462U (en) | 2020-05-29 |
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ID=70800728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921303538.4U Active CN210636462U (en) | 2019-08-12 | 2019-08-12 | Double-manhole valve well |
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| CN (1) | CN210636462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267538A (en) * | 2020-10-14 | 2021-01-26 | 广州市市政集团有限公司 | High horse-riding well of security |
| CN114569921A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Drainage system of fire fighting equipment |
-
2019
- 2019-08-12 CN CN201921303538.4U patent/CN210636462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267538A (en) * | 2020-10-14 | 2021-01-26 | 广州市市政集团有限公司 | High horse-riding well of security |
| CN114569921A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Drainage system of fire fighting equipment |
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