CN212801654U - Centralized heat supply pipe network valve manhole - Google Patents
Centralized heat supply pipe network valve manhole Download PDFInfo
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- CN212801654U CN212801654U CN202021310833.5U CN202021310833U CN212801654U CN 212801654 U CN212801654 U CN 212801654U CN 202021310833 U CN202021310833 U CN 202021310833U CN 212801654 U CN212801654 U CN 212801654U
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Abstract
The utility model belongs to the technical field of the thermal equipment, specifically speaking relates to a centralized heating pipe network valve manhole, and this manhole includes: a first well chamber (1) and a second well chamber (2) formed in the enclosing wall (4) and separated by a partition wall (3); the top of the first well chamber (1) is provided with a first well mouth, and the top of the second well chamber (2) is provided with a second well mouth; lay cement prefabricated plate (5) on first well head and the second well head, first well head includes: a first large wellhead and a first small wellhead; a first big well cover (6) is arranged on the first big well mouth, a first small well cover (7) is arranged on the first small well mouth, and a second big well cover (8) is arranged on the second well mouth; the first large well cover (6), the first small well cover (7) and the second large well cover (8) are all covered on the cement precast slab (5) and are flush with the ground; the maintainer need not go into the pit and operate, greatly reduced the operation risk, ensured maintainer's personal safety.
Description
Technical Field
The utility model belongs to the technical field of thermal equipment, specifically speaking relates to a central heating network valve manhole.
Background
Urban central heating is one of the important infrastructures of modern towns and is an important component of urban public utilities. Wherein, near heat supply pipe network, various functions such as drainage, exhaust, blowdown underground overhaul well room everywhere are visible, however, current manhole mainly has following problem when overhauing in underground overhaul well room:
1. because the heat medium is high-temperature high-pressure steam or high-temperature hot water in the centralized heat supply pipe network, along with the prolonging of the service life of equipment such as a valve, a sleeve and the like in a well chamber, the risk of leakage and damage of facilities such as a flange, a valve packing and the like in the well chamber exists, the risk is gradually increased, particularly, the risk probability of leakage of a drain valve, an exhaust valve and a blow-down valve which are connected with the centralized heat supply pipe network is higher in the process that a maintainer operates the valve in a well, once leakage occurs in the operation process, the maintainer is difficult to escape, and the personal safety is;
2. the existing manhole chamber belongs to an underground closed limited space, has poor oxygen content, and easily causes suffocation casualty accidents and potential safety hazards when maintainers operate in the underground manhole chamber;
3. the manhole chamber generally distributes in municipal administration lane, pavement or greenbelt, but, the well lid that covers on traditional manhole chamber generally is phi 700mm, especially the manhole on municipal administration lane, and the position number of placing of well lid is with ground parallel and level, because of frequent operation, inspection, uses the well lid, causes sealed relatively poorly, and rain and snow weather well chamber easily intakes in a large number, has the risk of equipment such as trap, discharge valve, the blowoff valve of the concentrated heat supply pipe network of flooding.
SUMMERY OF THE UTILITY MODEL
For solving prior art and having above-mentioned defect, the utility model provides a central heating network valve manhole, solved at the central heating in-process that begins, a plurality of valves that set up in the manhole room of once central heating network need the maintainer to go into the well and operate, there is the problem of potential safety hazard, the maintainer is at the central heating in-process that begins, do not need to go into the well and operate, directly open the well lid, through the operating link rod, operate a plurality of valves that set up in the manhole room, reduce the floodwater risk of a plurality of valves that are connected with the central heating network in the manhole room and other heat supply facilities.
The utility model provides a pair of central heating pipe network valve manhole, this manhole includes: a first well chamber and a second well chamber which are formed in the enclosing wall and are separated by a partition wall; the top of the first well chamber is provided with a first well mouth, and the top of the second well chamber is provided with a second well mouth; lay the cement prefabricated plate on first well head and the second well head, first well head includes: a first large wellhead and a first small wellhead; a first large well cover is arranged on the first large well mouth, a first small well cover is arranged on the first small well mouth, and a second large well cover is arranged on the second well mouth; the first large well cover, the first small well cover and the second large well cover are all covered on the cement precast slab and are level to the ground;
a first through hole is formed in the side wall of the first well chamber, a heat supply pipeline positioned outside the overhaul well penetrates through the first through hole provided with a waterproof sleeve, and a first valve and a second valve are sequentially arranged on the heat supply pipeline; an operation link rod is arranged on the second valve; the partition wall is provided with a plurality of support ring members, the operating link rod is placed on the support ring members, and the fixed end of the operating link rod is vertically placed at the first small wellhead;
a drainage pipeline communicated with the second valve hermetically penetrates through a second through hole formed in the partition wall and enters a second well chamber; the end part of the drainage pipeline is positioned above the water collecting tank arranged at the bottom of the second well chamber, and liquid in the heat supply pipeline is introduced into and discharged into the water collecting tank in the second well chamber.
As one improvement of the technical proposal, a well wall is additionally arranged between the first big well cover and the first big well mouth, and the well wall is at least 200mm higher than the ground,
a well wall is additionally arranged between the first small well cover and the first small well mouth, and the well wall is at least 200mm higher than the ground,
the well wall is additionally arranged between the second big well cover and the second well mouth, and the well wall is higher than the ground by at least 200 mm.
As one improvement of the technical scheme, the diameters of the first large well cover and the second large well cover are both larger than or equal to 700 mm; the diameter of the first small well cover is larger than or equal to 200 mm.
As one improvement of the technical scheme, the bottom of the first well chamber is provided with a water collecting tank, and the bottom of the second well chamber is provided with a water collecting tank.
As one improvement of the technical scheme, the enclosing wall and the partition wall are both cement prefabricated plates.
Compared with the prior art, the utility model beneficial effect be:
1. the original two well chambers are changed into two large well chambers and one small well chamber, so that the maintainers do not need to go into the well, only the first small well cover needs to be turned over, the operation link rod is directly operated, and the opening and closing of the second valve can be operated through the first small well mouth, so that the operation risk is greatly reduced, and the personal safety of the maintainers is guaranteed;
2. compared with the first large well mouth, the first small well mouth has a much smaller diameter, is easy to seal, greatly reduces the water seepage amount of the well chamber in rainy and snowy days, and reduces the flooding risk of heat supply facilities in the well chamber;
3. the forced ventilation time is greatly reduced, the maintainers do not need to enter the well chamber and can directly operate on the ground, the working efficiency of the maintainers is improved, and meanwhile the risk of suffocation casualties in the well chamber is reduced.
Drawings
Fig. 1 is a schematic structural view of the central heating pipe network valve manhole of the present invention.
Reference numerals:
1. first well chamber 2, second well chamber
3. Partition wall 4, enclosure wall
5. Cement prefabricated slab 6 and first big well lid
7. First small well cover 8 and second big well cover
9. Heat supply pipeline 10, first valve
11. Well wall 12, second valve
13. Operation link 14, support ring member
15. Drainage pipeline 16 and water collecting tank
17. Waterproof pipe sleeve
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a central heating network valve manhole, this manhole includes: a first well 1 and a second well 2 formed in the enclosing wall 4 and separated by a partition wall 3; the top of the first well chamber 1 is provided with a first well mouth, and the top of the second well chamber 2 is provided with a second well mouth; lay cement prefabricated plate 5 on first well head and the second well head, first well head includes: a first large wellhead and a first small wellhead; a first big well cover 6 is arranged on the first big well mouth, a first small well cover 7 is arranged on the first small well mouth, and a second big well cover 8 is arranged on the second well mouth; the first large well cover 6, the first small well cover 7 and the second large well cover 8 are all covered on the cement precast slab 5 and are flush with the ground;
a first through hole is formed in the side wall of the first well chamber, a heat supply pipeline positioned outside the overhaul well penetrates through the first through hole provided with a waterproof sleeve 17, and a first valve 10 and a second valve 12 are sequentially arranged on the heat supply pipeline; an operating link rod 13 is arranged on the second valve 12 and used for controlling the on-off of water in the heat supply pipeline 9; the partition wall 3 is provided with a plurality of support ring members 14 for placing the operation link 13 on the support ring members 14 to ensure that the operation link 13 is vertically erected at the first small well opening positioned below the first small well cover 7 all the time; the fixed end of the operating link rod 13 is vertically arranged at the first small well opening, so that after a maintainer opens the first small well cover 7, the position of the operating link rod 13 does not need to be searched and adjusted, the operating link rod 13 is directly operated, and the on-off of the second valve 12 is controlled;
a drainage pipe 15 communicating with the second valve 12 sealingly penetrates a second through hole provided in the partition wall 3 into the second well chamber 2; the end of the water discharge line 15 is located above a sump 16 opening at the bottom of the second well chamber 2 for introducing and discharging the liquid in the heat supply line 9 into the sump 16 in the second well chamber 2.
A well wall 11 is additionally arranged between the first big well cover 6 and the first big well mouth and is at least 200mm higher than the ground, a well wall 11 is additionally arranged between the first small well cover 7 and the first small well mouth and is at least 200mm higher than the ground,
a well wall 11 is additionally arranged between the second big well lid 8 and the second well mouth, is at least 200mm higher than the ground and is used for placing the maintenance well at a green belt so as to be convenient for discovery and operation;
the diameters of the first large well cover 6 and the second large well cover 8 are both larger than or equal to 700 mm; the diameter of the first small well cover 7 is greater than or equal to 200 mm.
The first valve is a valve with model DN50 and is in a normally open state, and the second valve is an existing drain valve.
The catch basin is seted up to the below of first well room 1, and the catch basin is seted up to the below of second well room 2 for the sewage of storage emission, and through outside drainage device, outside the sewage discharge inspection shaft that will store, avoid valve, heat supply pipeline and drainage pipe in the water logging inspection shaft.
The enclosing wall 4 and the partition wall 3 are both cement prefabricated plates and can prevent water.
The support ring member 14 includes: a support bar and a collar; the support rods are vertically fixed on the partition wall 3, and the end parts of the support rods are fixed with lantern rings and used for inserting the operation link rods 13 into the lantern rings to play a role in vertically placing the operation link rods 13.
When the maintenance is needed, a maintainer opens the first small well cover 7, acts the steam separation operating rod on the operating link rod 13, twists the operating link rod 13 in the anticlockwise direction, closes the second valve, overhauls the heat supply pipe network, twists the operating link rod 13 in the clockwise direction, opens the second valve, and discharges sewage into the water collecting tank in the second well chamber. The existing maintenance well room needs maintenance personnel to go into the well room for operation, belongs to limited space operation, in order to guarantee the safety of the maintenance personnel, before the valve in the operation well room, forced ventilation must be carried out firstly, but because the well room of the centralized heat supply pipe network is more, especially in heating seasons, the valve that needs to be operated is more, the working efficiency is not high, change the original two well room holes with the same size into three well rooms with two big sizes and one small size, wherein, the operation link rod is placed at the first small well mouth in the first small well room, the operation link rod is directly operated, the maintenance personnel can operate without going into the well, the maintenance personnel operation valve that goes into the well is avoided, the safety risk and well room water flooding risk of the maintenance personnel are reduced, and the working efficiency of the maintenance personnel can be improved.
In this embodiment, the human-steam separation operating lever is an existing device, and the operating link is an existing device.
The top of the operating link 13 outwards extends a straight plate, the steam separation operating lever is in a T-shaped structure, two oppositely-arranged clamping plates outwards extend from the bottom end of the T-shaped structure, and when the maintenance is required, the clamping plates at the bottom end of the steam separation operating lever in the T-shaped structure are inserted into the straight plate outwards extending from the top of the operating link 13 and rotate clockwise or anticlockwise to achieve the required operating environment for maintenance.
The utility model provides a novel centralized heating pipe network valve manhole, a new well head distribution mode is given, can be used for municipal administration slow traffic lane, pavement or greenbelt, change original one or two well heads that are the same in size into one big well head and one little two well heads, wherein, big well head is used for overhauing, little well head is used for the inspection and directly operates the operating link, because the well lid of little well head is little relative to the well lid of big well head, the intensity requirement reduces, easy switching and sealing, after using many times, still can realize sealed, avoided in sleet weather, the risk that equipment such as the trap of flooding centralized heating pipe network, discharge valve or blowoff valve exists; especially, at the manhole that the greenbelt set up, add between well head and well lid and can exceed ground 20cm, prevent into water, the little well head corresponds the indoor second valve that needs the operation, installs operation connecting rod 13 additional, accomplishes the switching of second valve outdoors to reduce the operation safety risk of operation, reduce the infiltration volume of first well room and second well room simultaneously, the protection equipment safety.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will understand that modifications and equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of them shall fall within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a central heating pipe network valve manhole which characterized in that, this manhole includes: a first well chamber (1) and a second well chamber (2) formed in the enclosing wall (4) and separated by a partition wall (3); the top of the first well chamber (1) is provided with a first well mouth, and the top of the second well chamber (2) is provided with a second well mouth; lay cement prefabricated plate (5) on first well head and the second well head, first well head includes: a first large wellhead and a first small wellhead; a first big well cover (6) is arranged on the first big well mouth, a first small well cover (7) is arranged on the first small well mouth, and a second big well cover (8) is arranged on the second well mouth; the first large well cover (6), the first small well cover (7) and the second large well cover (8) are all covered on the cement precast slab (5) and are flush with the ground;
a first through hole is formed in the side wall of the first well chamber (1), a heat supply pipeline (9) located outside the overhaul well penetrates through the first through hole provided with a waterproof sleeve (17), and a first valve (10) and a second valve (12) are sequentially arranged on the heat supply pipeline; an operation link rod (13) is arranged on the second valve (12); a plurality of support ring members (14) are arranged on the partition wall (3), the operating link rod (13) is placed on the support ring members (14), and the fixed end of the operating link rod (13) is vertically placed at the first small wellhead;
a drainage pipeline (15) communicated with the second valve (12) hermetically penetrates through a second through hole formed in the partition wall (3) and enters the second well chamber (2); the end of the drainage pipe (15) is located above a water collecting tank (16) which is arranged at the bottom of the second well chamber (2), and liquid in the heat supply pipe (9) is introduced into and discharged to the water collecting tank (16) in the second well chamber (2).
2. The valve manhole of central heating network according to claim 1, wherein a well wall (11) is additionally arranged between the first big well cover (6) and the first big well mouth, and the well wall is at least 200mm higher than the ground,
a well wall (11) is additionally arranged between the first small well cover (7) and the first small well mouth, and the well wall is at least 200mm higher than the ground,
a well wall (11) is additionally arranged between the second big well cover (8) and the second well mouth, and the well wall is higher than the ground by at least 200 mm.
3. The central heating network valve manhole according to claim 2, wherein the diameter of each of the first and second manhole covers (6, 8) is greater than or equal to 700 mm; the diameter of the first small well cover (7) is larger than or equal to 200 mm.
4. The valve manhole of the district heating network according to claim 1, wherein a collecting tank is provided at the bottom of the first chamber (1), and a collecting tank is provided at the bottom of the second chamber (2).
5. The central heating network valve manhole according to claim 1, wherein the enclosing wall (4) and the partition wall (3) are both cement precast slabs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310833.5U CN212801654U (en) | 2020-07-07 | 2020-07-07 | Centralized heat supply pipe network valve manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310833.5U CN212801654U (en) | 2020-07-07 | 2020-07-07 | Centralized heat supply pipe network valve manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212801654U true CN212801654U (en) | 2021-03-26 |
Family
ID=75101360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021310833.5U Active CN212801654U (en) | 2020-07-07 | 2020-07-07 | Centralized heat supply pipe network valve manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212801654U (en) |
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2020
- 2020-07-07 CN CN202021310833.5U patent/CN212801654U/en active Active
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