CN214791060U

CN214791060U - Water supply heater for power station

Info

Publication number: CN214791060U
Application number: CN202121359121.7U
Authority: CN
Inventors: 郭民; 张晨; 许宝军; 王丽红; 崔永亮
Original assignee: Harbin Turbine Auxiliary Equipment Engineering Co Ltd
Current assignee: Harbin Turbine Auxiliary Equipment Engineering Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-11-19
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a power station water heater, relate to a power station final stage water heater's arrangement structure, the utility model discloses a solution final stage extraction steam pressure parameter is lower, water heater's backheating extraction steam pipe way overlength and arrange relatively complicacy simultaneously, it is great to lead to the interior extraction steam pressure loss of exhaust steam pipe, extraction steam pressure loss is great in the backheating extraction steam pipe way, all can cause adverse effect's problem to water heater's performance and hydrophobic safety, it includes the water heater body, the exhaust steam pipe way, adapter sleeve and a plurality of compensator, it has the through-hole to process on the circumference curved surface of exhaust steam pipe way, adapter sleeve fixed mounting is in the through-hole, the water heater body is worn to establish in the adapter sleeve, the compensator cover is established on the backheating extraction steam pipe way of water heater body, the backheating extraction steam pipe way of water heater body passes through compensator fixed connection with the exhaust steam pipe way.

Description

Water supply heater for power station

Technical Field

The utility model relates to an arrangement structure of power station final stage feedwater heater belongs to the high-order direct air cooling turboset field of making of arranging.

Background

After high-order direct air cooling unit cancellation steam extraction device of arranging, the exhaust steam pipeline has been arranged, the water heater of final stage has just become awkward problem, the water heater of final stage arranges outside the pipeline, then backheat air exhaust pipeline all need be drawn forth from the exhaust steam pipeline, the arrangement of backheat steam extraction pipeline will become more complicated, the arrangement of backheat steam extraction pipeline will bring the exhaust steam loss pressure that is bigger relatively, and simultaneously, the pressure parameter of final stage steam extraction is lower, the backheat steam extraction pipeline of overlength can bring bigger steam extraction pressure loss, all can cause adverse effect to water heater's performance and hydrophobic safety.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the last stage extraction steam pressure parameter lower, feed water heater's backheat extraction steam pipe overlength and arrange relatively complicacy simultaneously, it is great to lead to exhaust steam loss of pressure in the extraction steam pipe, and extraction steam loss of pressure is great in the backheat extraction steam pipe, great, all can cause adverse effect's problem to feed water heater's performance and hydrophobic safety, and then provides a power station feed water heater.

The utility model adopts the technical proposal that:

the steam supply device comprises a water supply heater body, a steam exhaust pipeline, a connecting sleeve and a plurality of compensators, wherein a through hole is processed on the circumferential curved surface of the steam exhaust pipeline, the connecting sleeve is fixedly installed in the through hole, the water supply heater body is arranged in the connecting sleeve in a penetrating mode, the compensators are sleeved on a regenerative steam extraction pipeline of the water supply heater body, and the regenerative steam extraction pipeline of the water supply heater body is fixedly connected with the steam exhaust pipeline through the compensators.

Has the advantages that:

the utility model discloses crossing the exhaust steam pipe with the water heater body, both reduced the length of water heater body backheat steam extraction pipeline, the loss of exhaust steam pressure in the exhaust steam pipe and the loss of steam extraction pressure in the backheat steam extraction pipeline have been reduced, it is simple relatively to make the arrangement of backheat steam extraction pipeline again, the space of arranging of power station has been practiced thrift, install the adapter sleeve between water heater body and exhaust steam pipe, prevent water heater body and exhaust steam pipe direct contact, make the load of water heater body act on the outside of exhaust steam pipe, adopt the compensator to be connected between backheat steam extraction pipeline and the exhaust steam pipe, compensate the thermal displacement between steam extraction pipeline and the water heater body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a block diagram of the feedwater heater body;

Detailed Description

The first embodiment is as follows: the embodiment is described by combining fig. 1 and fig. 2, and the embodiment is a water supply heater for a power station, which comprises a water supply heater body 1, a steam exhaust pipeline 2, a connecting sleeve 3 and a plurality of compensators 4, wherein a through hole 2-1 is processed on the circumferential curved surface of the steam exhaust pipeline 2, the connecting sleeve 3 is fixedly arranged in the through hole 2-1, and the water supply heater body 1 is arranged in the connecting sleeve 3 in a penetrating way, so that the water supply heater body 1 is prevented from being directly contacted with the steam exhaust pipeline 2, and the load of the water supply heater body 1 acts on the outside of the steam exhaust pipeline 2. The compensator 4 is sleeved on the regenerative steam extraction pipeline 1-1 of the water supply heater body 1, and the regenerative steam extraction pipeline 1-1 of the water supply heater body 1 is fixedly connected with the steam exhaust pipeline 2 through the compensator 4 to compensate thermal displacement between the steam exhaust pipeline 2 and the water supply heater body 1.

The second embodiment is as follows: the embodiment is described with reference to fig. 1 and 2, and the embodiment of the water supply heater for the power station is that the central axis of the through hole 2-1 on the steam exhaust pipeline 2 is perpendicular to the central axis of the steam exhaust pipeline 2, so that the through hole 2-1 is ensured to be vertically processed on the steam exhaust pipeline 2, so that the water supply heater body 1 is horizontally installed on the steam exhaust pipeline 2, if the through hole 2-1 is obliquely processed on the steam exhaust pipeline 2, the water supply heater body 1 can fall or be damaged due to uneven stress, and the rest is the same as the specific embodiment.

The third concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, the steam exhaust pipeline 2 of the water supply heater for the power station in the embodiment comprises a square pipeline, a transition pipeline and a circular pipeline, the square pipeline, the transition pipeline and the circular pipeline are sequentially connected in a sealing manner, the water supply heater body 1 is installed in the circular pipeline of the steam exhaust pipeline 2, and the rest of the water supply heater body is the same as that of the first embodiment or the second embodiment.

The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, and the length of the connecting sleeve 3 is smaller than that of the water supply heater body 1, and the pipe diameter of the circular pipe of the steam exhaust pipeline 2 is smaller than that of the connecting sleeve 3, so that the water supply heater body 1 is not in direct contact with the steam exhaust pipeline 2, and the two ends of the connecting sleeve 3 are exposed out of a part of the through hole 2-1 of the steam exhaust pipeline 2, so that the material of the connecting sleeve 3 is not wasted, and the rest is the same as the first, second or third embodiment.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, and in the water supply heater for the power station according to the embodiment, the connecting sleeve 3 is welded with the through hole 2-1 of the steam exhaust pipeline 2, so that the connecting performance of the connecting sleeve 3 and the steam exhaust pipeline 2 is ensured, and the rest is the same as that of the first, second, third or fourth embodiment.

The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 and 2, and the welding manner between the connection sleeve 3 and the through hole 2-1 of the steam exhaust pipeline 2 is girth welding, and the other is the same as the first, second, third, fourth or fifth embodiment.

Principle of operation

The utility model discloses when the installation earlier with adapter sleeve 3 through welded fastening install in exhaust steam pipe 2's through-hole 2-1, wear to establish in through-hole 2-1 with feedwater heater body 1, pass through compensator 4 fixed connection with the backheat steam extraction pipeline 1-1 of feedwater heater body 1 and exhaust steam pipe 2.

Claims

1. A kind of power station feed water heater, characterized by that: the device comprises a water supply heater body (1), a steam exhaust pipeline (2), a connecting sleeve (3) and a plurality of compensators (4), wherein a through hole (2-1) is processed on the circumferential curved surface of the steam exhaust pipeline (2), the connecting sleeve (3) is fixedly installed in the through hole (2-1), the water supply heater body (1) is arranged in the connecting sleeve (3) in a penetrating mode, the compensators (4) are sleeved on a regenerative steam extraction pipeline (1-1) of the water supply heater body (1), and the regenerative steam extraction pipeline (1-1) of the water supply heater body (1) is fixedly connected with the steam exhaust pipeline (2) through the compensators (4).

2. A plant feed water heater as claimed in claim 1, wherein: the central axis of the through hole (2-1) on the steam exhaust pipeline (2) is vertical to the central axis of the steam exhaust pipeline (2).

3. A plant feed water heater as claimed in claim 1, wherein: the steam exhaust pipeline (2) comprises a square pipeline, a transition pipeline and a round pipeline, the square pipeline, the transition pipeline and the round pipeline are sequentially connected in a sealing mode, and the water supply heater body (1) is installed in the round pipeline of the steam exhaust pipeline (2).

4. A plant feed water heater as claimed in claim 3, wherein: the length of the connecting sleeve (3) is less than that of the feed water heater body (1), and the pipe diameter of the circular pipeline of the steam exhaust pipeline (2) is less than that of the connecting sleeve (3).

5. A plant feed water heater as claimed in claim 4, wherein: the connecting sleeve (3) is connected with the through hole (2-1) of the steam exhaust pipeline (2) in a welding way.

6. A plant feedwater heater according to claim 5, characterized in that: the welding mode between the connecting sleeve (3) and the through hole (2-1) of the steam exhaust pipeline (2) is girth welding.