CN217356092U

CN217356092U - Air bleeder for hot water pipeline for town heat supply

Info

Publication number: CN217356092U
Application number: CN202221117437.XU
Authority: CN
Inventors: 李信谊; 郑祥玉; 王欣
Original assignee: Qingdao Energy Design Research Institute Co ltd
Current assignee: Qingdao Energy Design Research Institute Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-09-02
Anticipated expiration: 2032-05-10

Abstract

The utility model discloses a town heat supply hot-water line air bleeder, including hot-water line, well room, air bleeder and strenghthened type finished product tee bend, strenghthened type finished product tee bend is linked together with the hot-water line, air bleeder is connected on the bleeder of locating strenghthened type finished product tee bend top, just air bleeder runs through the well room setting, and air bleeder includes nozzle stub, bleeder and blast pipe, the nozzle stub intercommunication is located on the bleeder of strenghthened type finished product tee bend top, bleeder and nozzle stub intercommunication, and the bleeder runs through the well room setting, the blast pipe intercommunication is located on one side of bleeder, be provided with discharge valve on the other end of blast pipe. The utility model belongs to the technical field of town heat supply pipe network system, specifically provide a move safer, more reliable, the stronger town heat supply hot-water line air bleeder of stability.

Description

Air bleeder for town heat supply hot water pipeline

Technical Field

The utility model belongs to the technical field of town heat supply pipe network system, specifically indicate a town heat supply hot-water line gassing device.

Background

In recent years, under the big background that the economy of China is rapidly developed and the living standard of people is gradually improved, the centralized heating becomes more and more standard in cities. Especially, the technical advantages of the hot water pipe network heat supply in the aspects of safety, energy conservation and environmental protection promote the popularization of the hot water pipe network central heat supply in northern areas of China.

The high point of the hot water pipeline is provided with an air release device according to the requirements of section 8.5.4 in the urban heating network design code (CJJ 34-2010).

In order to achieve the purpose of air release and save investment of each heating power company, an air release device arranged on a heat supply direct-buried hot water pipeline is embodied in a pipeline main pipe as follows: the thin air release pipeline and the valve are directly arranged, although the thin air release pipeline and the valve can meet the air release requirement of the heating system, the thin pipeline has thin wall thickness, and the following problems can occur:

1. when in heat supply operation, the heat supply pipeline expands with heat and contracts with cold, the main pipe moves forwards and backwards, the thinner air release pipe is directly buried in soil and is in an anchoring state, the air release pipe at the tee joint is easy to be damaged by fatigue, and the condition of water leakage of the air release pipe is easy to occur;

2. the tee bend of gassing department is mostly the on-spot opening welding tee bend of being responsible for, and unqualified phenomenon appears easily in the construction such as welding, joint coating heat preservation of tee bend department, can make tee bend department pipeline appear corroding the phenomenon during the pipe network operation, and thinner gassing pipeline wall thickness is thinner, corrodes more easily and destroys, the condition that the bleeder leaks appears.

Above two kinds of circumstances all can lead to the gassing pipeline to destroy and leak, need whole section pipe gateway to stop rush repair after leaking water, still need to close whole heating system under the severe condition, seriously influences the security of heating system operation, except above-mentioned problem, the gassing pipeline adopts thinner pipeline, when being responsible for the velocity of water great, also can appear exhausting incomplete phenomenon, influences the effect of heat supply.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a move safer, more reliable, the stronger cities and towns heat supply hot water line air bleeder of stability.

The utility model adopts the following technical scheme: the utility model relates to a cities and towns heat supply hot-water line air bleeder, including hot-water line, well room, air bleeder and strenghthened type finished product tee bend, strenghthened type finished product tee bend is linked together with hot-water line, on the bleeder at strenghthened type finished product tee bend top was located in the air bleeder connection, just air bleeder runs through the well room setting.

As the preferred scheme, bleeder includes nozzle stub, bleeder and blast pipe, the nozzle stub intercommunication is located on the lateral pipe at strenghthened type finished product tee bend top, bleeder and nozzle stub intercommunication, and the bleeder runs through the well room setting, the blast pipe intercommunication is located on one side of bleeder, be provided with discharge valve on the other end of blast pipe.

Preferably, the air bleeder further comprises a sealing head, and the sealing head is arranged at the other end of the air bleeder.

Furthermore, the short pipe and the exhaust pipe are seamless stamping elbows, taking the well chamber size of 700mm long and 700mm wide as an example, the length of the short pipe is 2.5 meters, and the length of the exhaust pipe is 0.5 meter.

Furthermore, the reinforced finished tee is forged and drawn by a finished product.

Further, be provided with the flexible protection layer between the outside of bleeder and the well room, the flexible protection layer includes heat preservation and the outer protection layer that sets up from inside to outside, the heat preservation can adopt the on-the-spot foaming heat preservation of the thick polyurethane of 30mm, and the outer protection layer adopts high density polyethylene, and the interface adopts hot air welding, and the temperature resistant requirement is with hot water pipe, through the setting of flexible protection layer, in order to reduce or even avoid the bleeder to appear the rust condition of permeating, leaking water.

This scheme provides a cities and towns heat supply hot-water line air bleeder adopts above-mentioned structure the utility model discloses the beneficial effect who gains as follows:

1. the normal design idea of the air bleeder for changing the high-temperature water pipeline is that the pipe diameter of the large-caliber three-way branch pipe is arranged on the main pipe (the heat supply hot water pipeline) and then the corresponding air bleeder is arranged, the pipe diameter and the wall thickness of the large-caliber three-way branch pipe are increased, the corrosion resistance of the branch pipe is enhanced, the fatigue failure capability of the branch pipe is improved, and meanwhile, the increased three-way pipe can better collect gas in the heat supply hot water pipeline and is more beneficial to smooth air bleeding of the heat supply hot water pipeline.

2. The tee joint is forged and drawn by a finished product, and the branch corrosion resistance and the fatigue failure resistance are greatly improved.

3. Through the setting of flexible inoxidizing coating, can solve among the prior art bleed pipe often appear rust thoroughly, destroy, leak the difficult problem, improved heating system's security and stability.

4. After entering the well chamber, the thickened tee is connected with a normal thinner air release pipe and a valve, so that the size of the well chamber can be reduced, and the construction investment of pipes and the well chamber is reduced.

5. In the scheme, the wall thickness of the air release pipe is thickened by more than 30%, so that the stress and corrosion strength of the air release pipe are enhanced.

Drawings

FIG. 1 is a schematic view of the whole structure of the town heat supply hot water pipeline air bleeder in the present scheme;

fig. 2 is a sectional view taken along line a-a of fig. 1.

The device comprises a hot water pipeline 1, a hot water pipeline 2, an exhaust pipe 3, an exhaust valve 4, a well chamber 5, short pipes 6, an exhaust pipe 7, end sockets 8, brick supports 9, reinforced finished product tees 10, flexible protective layers 11 and a well cover.

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

As shown in fig. 1-2, the utility model relates to a town heat supply hot water pipe air bleeder, including hot water pipe 1, well room 4, air bleeder and strenghthened type finished product tee bend 9, strenghthened type finished product tee bend 9 is linked together with hot water pipe 1, air bleeder is connected on locating the bleeder at strenghthened type finished product tee bend 9 top, just air bleeder runs through the setting of well room 4.

As preferred scheme, air bleeder includes nozzle stub 5, bleeder 6, blast pipe 2 and head 7, on the lateral pipe at strenghthened type finished product tee bend 9 top was located to nozzle stub 5 intercommunication, bleeder 6 and nozzle stub 5 intercommunication, and bleeder 6 runs through the well room 4 setting, on one side of bleeder 6 is located to blast pipe 2 intercommunication, be provided with discharge valve 3 on the other end of blast pipe 2, head 7 is located on the other end of bleeder 6.

Furthermore, the short pipe 5 and the exhaust pipe 2 are seamless stamping elbows, and the reinforced finished tee 9 is formed by forging and drawing finished tee. A flexible protective layer 10 is arranged between the outside of the gas release pipe 6 and the well chamber 4, the flexible protective layer 10 comprises a heat preservation layer and an outer protective layer which are arranged from inside to outside, the heat preservation layer can be made of polyurethane with the thickness of 30mm through field foaming and heat preservation, the outer protective layer is made of high-density polyethylene, a connector is made of hot air welding, and the heat resistance requirement is met with that of a hot water pipeline 1.

Taking the well chamber 4 with the size of 700mm long and 700mm wide as an example, the length of the short pipe 5 is 2.5 meters, and the length of the exhaust pipe 2 is 0.5 meter.

When specifically using, on-spot preparation brick in well room 4 supports 8, and brick supports 8 sets up in discharge valve 3's below, and the well head setting makes things convenient for the operation of valve directly over discharge valve 3.

In the embodiment, the wall thickness of the gas release pipe 6 is increased by 30%, so that the stress and corrosion strength of the gas release pipe 6 can be enhanced, and the tee joint is forged and drawn by a finished product, so that the branch corrosion resistance and the fatigue damage resistance are greatly improved, smooth gas release of the heat supply hot water pipeline 1 is facilitated, and the safe and stable operation of a heat supply system is ensured.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a town's heat supply hot water line degassing unit, includes hot water line and well room, its characterized in that: including bleeder and strenghthened type finished product tee bend, strenghthened type finished product tee bend is linked together with hot water pipeline, bleeder is connected on locating the bleeder at strenghthened type finished product tee bend top, just bleeder runs through the well room setting, bleeder includes nozzle stub, gas release pipe and blast pipe, the nozzle stub intercommunication is located on the bleeder at strenghthened type finished product tee bend top, gas release pipe and nozzle stub intercommunication, and the gas release pipe runs through the well room setting, the blast pipe intercommunication is located on one side of gas release pipe, be provided with discharge valve on the other end of blast pipe.

2. The air bleeder of a town heating hot water pipeline according to claim 1, characterized in that: the air bleeder also comprises a seal head, and the seal head is arranged at the other end of the air bleeder.

3. The air bleeder of a town heating hot water pipeline according to claim 1, characterized in that: the short pipe is a seamless stamping elbow.

4. The air bleeder of a town heating hot water pipeline according to claim 1, characterized in that: the reinforced finished tee joint is formed by forging and pressing finished products and drawing a tee joint.

5. The air bleeder of a town heating hot water pipeline according to claim 1, characterized in that: the exhaust pipe is a seamless stamping elbow.

6. The air bleeder of a town heating hot water pipeline according to claim 1, characterized in that: be provided with the flexible protection layer between the outside of gas release pipe and the well room, the flexible protection layer includes heat preservation and the outer inoxidizing coating that sets up from inside to outside, the heat preservation can adopt the on-the-spot foaming heat preservation of the thick polyurethane of 30mm, the outer inoxidizing coating adopts high density polyethylene.