CN211976836U

CN211976836U - Centripetal steam extraction pipe type heating network heater

Info

Publication number: CN211976836U
Application number: CN202020688485.9U
Authority: CN
Inventors: 房玉刚; 董林峰; 房玉英; 房立帅
Original assignee: Shandong Lurun Thermal Power Technology Co ltd
Current assignee: Shandong Lurun Thermal Power Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-11-20
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a radial steam extraction pipe type heat supply network heater includes heat supply network heater body, and this internal heat exchanger tube bank and the backup pad that have of heat supply network heater installs the centripetal pipe along heat supply network heater body center pin direction, and it has the hole of taking out steam to open on the centripetal pipe, and the standpipe is installed to centripetal pipe intermediate position, and the one end intercommunication centripetal pipe of standpipe, the other end stretch out the heat supply network heater originally externally. Compared with other heating network heater devices, the device not only can enable steam to flow centripetally and exchange heat uniformly, but also can extract non-condensable gas generated in the steam-water heat exchange process, is convenient to manufacture and install in the actual production process, and has outstanding effects of improving the overall heat exchange efficiency of the device and saving energy and reducing emission. Is the most ideal steam heating equipment in the heat and power cogeneration project and the heating system of the heat supply network.

Description

Centripetal steam extraction pipe type heating network heater

Technical Field

The utility model relates to the technical field of heaters, in particular to centripetal steam extraction pipe type heating network heater.

Background

With the increase of chemical industry and thermal power plants thereof, the heat supply network heater plays a considerable role in the industry field. With the continuous progress of economic development and production technology, the types and technical structure characteristics of the heat supply network heaters are also innovated, and the heat supply network heaters are indispensable medium-hardness equipment; at the present stage, the phenomena of uneven steam-water heat exchange, non-condensed gas non-heat exchange and the like exist in the cavity on the shell side of the heat supply network heater, so that the heat exchange efficiency of the heater is obviously reduced, enough area allowance is reserved in calculating the heat exchange area to ensure the heat exchange efficiency of the heater, the increase of the area allowance is not enough, the overall cost of equipment is increased, and the problem of the heat transfer efficiency of the steam-water heat exchanger cannot be solved essentially.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems existing in the prior art, the utility model provides a centripetal steam extraction pipe type heating network heater. Compared with other heating network heater devices, the centripetal steam extraction pipe type heating network heater not only can enable steam to flow centripetally and conduct uniform heat exchange, but also can extract non-condensable gas generated in the steam-water heat exchange process, is convenient to manufacture and install in the actual production process, and plays a prominent role in improving the overall heat exchange efficiency of the device and saving energy and reducing emission. Is the most ideal steam heating equipment in the heat and power cogeneration project and the heating system of the heat supply network.

The utility model provides a technical scheme that its technical problem adopted is: the centripetal steam extraction pipe type heating network heater comprises a heating network heater body, wherein a heat exchange pipe bundle and a supporting plate are arranged in the heating network heater body, a centripetal pipe is installed in the direction of a central shaft of the heating network heater body, a steam extraction hole is formed in the centripetal pipe, a vertical pipe is installed in the middle of the centripetal pipe, one end of the vertical pipe is communicated with the centripetal pipe, and the other end of the vertical pipe extends out of the heating network heater body.

Further, the centripetal pipe is installed in parallel with the central pipe and is higher than the normal liquid level of the heat supply network heater body.

Further, the centripetal pipe is fixed on a supporting plate in the heat supply network heater body.

Furthermore, the centripetal pipe is uniformly provided with steam extraction holes, and the centripetal two ends are plugged.

Furthermore, the standpipe is an L-shaped bent pipe and is welded and fixed on the heat supply network heater body, and one end of the standpipe outside the heat supply network heater body is connected with the steam extractor.

To sum up, the utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. simple production, processing and installation and easy operation.

2. The arrangement position of the centripetal pipe is the central position of a vapor phase space of the shell, so that the non-condensed gas is ensured to be extracted, and the centripetal movement of the steam can be promoted.

3. The transverse centripetal pipe is fixed on each supporting plate, and the supporting plates adopt a double-sided all-welded structure, so that the supporting plates are reinforced again.

Drawings

Fig. 1 is a view of the overall structure of the present invention.

Fig. 2 is a radial sectional view.

FIG. 3 is a view showing the connection relationship between the centripetal canister and the support plate.

FIG. 4 is a view showing the connection relationship between the standpipe and the radial pipe.

Fig. 5 is a cross-sectional view a-a of fig. 4.

Fig. 6 is a sectional view of B-B in fig. 4.

In the figure:

the heating system comprises a heating network heater body 1, a front-end pipe box 2, a rear-end pipe box 3, a shell 4, a steam inlet 5, a radial pipe 6, a vertical pipe 7, a supporting plate 8, a steam extraction hole 9, a plugging plate 10 and a supporting rib plate 11.

Detailed Description

The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, and the illustrated embodiments are only for explaining the present invention, and do not limit the scope of the present invention.

As shown in fig. 1, the centripetal steam extraction pipe type heat network heater includes pipe boxes at both ends, a middle shell 4, an inner heat exchange pipe bundle, a baffle plate for guiding flow, a support plate 8 and the like. The pipe case includes front end pipe case 2 and rear end pipe case 3, and front end pipe case 2 and rear end pipe case 3 all are connected with casing 4 through pipe case flange and tube sheet, are equipped with steam inlet 5 on casing 4, and steam gets into the heat supply network heater inside from steam inlet 5 on casing 4, carries out the heat transfer by impingement baffle entering heat exchanger tube bank all around after the impingement baffle scour protection water conservancy diversion.

As shown in fig. 1 and 2, a central tube 6 is installed along the central axis direction of the heat supply network heater body 1, a steam extraction hole 9 is opened on the central tube 6, a vertical tube 7 is installed at the middle position of the central tube 6, one end of the vertical tube 7 is communicated with the central tube 6, and the other end extends out of the heat supply network heater body 1. The centripetal pipe 6 is installed in parallel with the central pipe and is higher than the normal liquid level of the heat supply network heater body 1.

As shown in fig. 3, the centripetal pipe 6 is fixed to a support plate 8 in the heating network heater body 1 and is welded and fixed by electric welding.

As shown in fig. 5 and 6, the steam extraction holes 9 are uniformly formed on the centripetal pipe 6, and the steam extraction holes 9 are arranged in a staggered manner. The staggered hole arrangement is mainly embodied in two aspects: firstly, the centripetal pipe is located at the highest position which the liquid level in the cavity of the equipment shell can reach, when the liquid level is at the normal liquid level, all steam is around the centripetal pipe, and because the noncondensable gas is not in a fixed position in the shell and moves along with the flow of the steam, the staggered hole opening arrangement can extract the noncondensable gas from different positions and promote the steam in all directions around to complement to the steam extraction port; secondly, when the liquid level of the heating network heater rises to the highest liquid level, the lower row of the open pores can be immersed in the condensed water, because the steam extraction holes are always in steam extraction operation, when the steam extraction holes at the lower part of the centripetal pipe are immersed in the water, the open pores in the other directions can also continue to keep in centripetal steam extraction operation, and the condensed water is not extracted.

The two ends of the centripetal pipe are plugged, two sections of plugged pipe bodies can be directly adopted, and plugging can also be carried out through the plugging plate 10.

As shown in fig. 4, the vertical pipe 7 is an L-shaped bent pipe, one end of the vertical pipe 7 extends into the heat supply network heater and is connected with the centripetal pipe 6, and the other end of the vertical pipe outside the heat supply network heater body 1 is connected with the steam extractor. The bent position of the bent pipe is supported and fixed through a supporting rib plate 11. The standpipe 7 is fixed to the housing 4 of the heating network heater by welding.

Steam gets into the heat supply network heater inside from steam inlet 5 on casing 4, carries out the heat transfer by impingement baffle entering tube bank all around after the impingement baffle scour protection water conservancy diversion, and noncondensable gas easily produces at normal liquid level surface, and noncondensable gas is taken out by the horizontal centripetal pipe 6 that injects the tube bank center, and steam is mended neat to the center rapidly, reaches dual effect.

On the basis of heat exchange of a traditional heat supply network heater, a centripetal steam extraction pipe device is added, on one hand, non-condensable gas existing inside the shell 4 is solved, on the other hand, steam is made to flow centripetal, the surface contact uniformity of the heat exchange pipe is enhanced, and the heat transfer efficiency is improved.

Compared with other heating network heater devices, the device not only can ensure that steam flows centripetally and exchanges heat uniformly, but also can extract non-condensable gas generated in the steam-water heat exchange process, is convenient to manufacture and install in the actual production process, and plays a prominent role in improving the overall heat exchange efficiency of the device and saving energy and reducing emission. It is the most ideal steam heating equipment in the heat and power cogeneration project and the heating system of the heat supply network.

Moreover, the production, processing and installation are simple and easy to operate. The arrangement position of the centripetal pipe 6 is the central position of a vapor phase space of the shell 4, so that the non-condensed gas is ensured to be pumped out, and the centripetal movement of the steam can be promoted. The transverse centripetal pipe 6 is fixed on each supporting plate 8, and is in a double-sided all-welded structure with the supporting plates 8, so that the supporting plates 8 are reinforced again.

The utility model discloses a firstly, solved the inside noncondensable gas problem that exists of casing 4, secondly make steam centripetal flow, strengthen heat exchange tube surface contact homogeneity, improve heat transfer efficiency.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, which is defined by the appended claims.

Claims

1. The centripetal steam extraction pipe type heating network heater comprises a heating network heater body, wherein a heat exchange pipe bundle and a supporting plate are arranged in the heating network heater body.

2. A centripetal steam extraction tube type heat net heater according to claim 1, wherein the centripetal tube is installed parallel to the central tube and above the normal liquid level of the heat net heater body.

3. A centripetal steam extraction tube type heat net heater according to claim 1, wherein the centripetal tube is fixed to a support plate in the heat net heater body.

4. A centripetal steam extraction tube type heat net heater according to claim 1, wherein the centripetal tube is provided with steam extraction holes uniformly, and both centripetal ends are blocked.

5. A radial steam extraction pipe type heat network heater according to claim 1, wherein the vertical pipe is an L-shaped bent pipe and is welded and fixed on the heat network heater body, and one end of the vertical pipe outside the heat network heater body is connected with a steam extractor.