CN222481160U

CN222481160U - Discharged steam condensation recovery device

Info

Publication number: CN222481160U
Application number: CN202420986829.2U
Authority: CN
Inventors: 江文波; 颜容辉; 丘有铨; 陈诗鹏; 张兴文; 陈宇祥
Original assignee: Xiamen Environment And Energy Investment Development Co ltd
Current assignee: Xiamen Environment And Energy Investment Development Co ltd
Priority date: 2024-05-09
Filing date: 2024-05-09
Publication date: 2025-02-14
Anticipated expiration: 2034-05-09

Abstract

The utility model proposes a steam condensation recovery device, which relates to the technical field of steam recovery, and solves the problem that the existing drain expansion tank above the drain box leads to the atmosphere to exhaust steam, and this method directly discharges steam into the atmosphere, resulting in the waste of steam and water. The utility model includes a drain box and a drain expansion tank, the water outlet of the drain expansion tank is connected to the water inlet of the drain box, the drain expansion tank is connected to the low-pressure section drain inlet pipe and the high-pressure section drain inlet pipe, the drain expansion tank is also connected to an exhaust pipe, and also includes a steam condensation recovery pipe connected to the exhaust pipe, the steam condensation recovery pipe is connected to a condensation component for condensing the steam in the steam condensation recovery pipe into water, and the water outlet of the steam condensation recovery pipe is connected to the drain box through a drain pipe. The beneficial effect of the utility model is: the steam in the steam condensation recovery pipe is condensed into water, and then refluxed into the drain box for collection, so as to achieve the recovery of wasted steam and water and save water resources.

Description

Discharged steam condensation recovery device

Technical Field

The utility model relates to the technical field of steam recovery, in particular to a condensing recovery device for discharged steam.

Background

In a waste incineration power plant, a steam turbine drain tank, water sources are from a drain of a high-pressure section and a drain of a low-pressure section of a primary air heater of a boiler, and are led to a drain expansion tank above the drain tank, the drain temperature is about 230 ℃ when the steam of a part carried by a higher water temperature is actually measured, wherein water is discharged to the drain tank through a pipeline at the bottom of the expansion tank, and residual steam is discharged into the air from a side guide pipe of the expansion tank to enter the atmosphere, so that steam and water waste phenomenon exists, and the steam is not collected in the market at present.

Disclosure of utility model

The utility model aims to solve the problem that steam and water waste exists when the drainage expansion vessel above the existing hydrophobic tank is used for leading to the atmosphere for exhausting steam.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The drainage steam condensation recovery device comprises a drainage tank and a drainage expansion tank, wherein a water outlet of the drainage expansion tank is connected with a water inlet of the drainage tank, a low-pressure section drainage inlet pipe and a high-pressure section drainage inlet pipe are connected to the drainage expansion tank, and an exhaust pipe is also connected to the drainage expansion tank;

The condensing assembly comprises a cooling water inlet pipe for injecting cooling water, the cooling water inlet pipe is split into a plurality of cooling water outlet pipes, the cooling water outlet pipes extend into the steam condensing recovery pipe and are connected with cooling water spray heads, and the cooling water spray heads are uniformly distributed in the steam condensing recovery pipe.

The cooling water outlet pipe and the cooling water nozzle are provided with four groups.

The cooling water spray head is further improved in that a plurality of cooling water spray nozzles are arranged on the cooling water spray head.

It is a further improvement that the cooling water nozzles are provided with at least three.

The further improvement is that the cooling water outlet pipes are provided with corresponding regulating valves.

The further improvement is that the water outlet at the lower end of the drainage expansion vessel is connected with the water inlet at the upper end of the drainage tank through a pipeline.

The drain expansion device is connected with the low-pressure section drain of the primary air heater of the boiler through the low-pressure section drain inlet pipe, and is connected with the high-pressure section drain of the primary air heater of the boiler through the high-pressure section drain inlet pipe.

The steam condensation recovery pipe is a U-shaped pipe.

The U-shaped pipe is a 304 stainless steel pipe.

The further improvement is that the drainage expansion tank 2 is also connected with a desalted water supplementing pipe.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

Through having set up the steam condensation recovery pipe, the cooperation goes up the condensation subassembly and condenses the steam of steam condensation recovery pipe into water, later flows back to the hydrophobic tank in collect, can avoid steam to discharge into the atmosphere, realizes extravagant catch water, water economy resource.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the vapor condensation recovery pipe 7 and the condensation component 9 in the present utility model;

Fig. 3 is a schematic diagram of the venting structure of a prior art hydrophobic tank and a hydrophobic diffuser.

The reference numerals indicate that the water-repellent tank 1, the water-repellent expansion vessel 2, the low-pressure section water-repellent inlet pipe 3, the high-pressure section water-repellent inlet pipe 4, the desalted water-supplementing pipe 5, the exhaust pipe 6, the vapor condensation recovery pipe 7, the exhaust pipe 8, the condensation component 9, the cooling water inlet pipe 91, the cooling water spray head 92, the cooling water spray nozzle 93 and the cooling water outlet pipe 94.

Detailed Description

Referring to fig. 1-3, the technical scheme adopted by the specific embodiment is that the device for condensing and recycling discharged steam comprises a water-repellent tank 1 and a water-repellent expansion tank 2, wherein a water outlet of the water-repellent expansion tank 2 is connected with a water inlet of the water-repellent tank 1, the water-repellent expansion tank 2 is connected with a low-pressure section water-repellent inlet pipe 3 and a high-pressure section water-repellent inlet pipe 4, the water-repellent expansion tank 2 is also connected with an exhaust pipe 6 and further comprises a steam condensing and recycling pipe 7 connected with the exhaust pipe 6, the steam condensing and recycling pipe 7 is connected with a condensing component 9 for condensing steam in the steam condensing and recycling pipe 7 into water, and a water outlet of the steam condensing and recycling pipe 7 is connected with the water-repellent tank 1 through a water drain pipe 8;

The condensing assembly 9 comprises a cooling water inlet pipe 91 for injecting cooling water, the cooling water inlet pipe 91 is divided into a plurality of cooling water outlet pipes 94, the cooling water outlet pipes 94 extend into the steam condensation recovery pipe 7 and are connected with cooling water spray heads 92, and the cooling water spray heads 92 are uniformly distributed in the steam condensation recovery pipe 7.

The water source of the cooling water inlet pipe 91 may be connected to a demineralized water main pipe or a condensate outlet main pipe.

Wherein, the cooling water inlet pipe 91 and the drain pipe are respectively provided with a corresponding valve.

Wherein the cooling water outlet pipe 94 and the cooling water nozzle 93 are provided with four groups.

Wherein, the cooling water spray head 92 is provided with a plurality of cooling water spray nozzles 93.

Wherein the cooling water nozzles 93 are provided with at least three.

Wherein, the cooling water outlet pipes 94 are respectively provided with corresponding regulating valves.

Wherein, the water outlet at the lower end of the drainage expansion tank 2 is connected with the water inlet at the upper end of the drainage tank 1 through a pipeline.

The drainage expansion device is characterized in that the drainage expansion device 2 is connected with the low-pressure section drainage of the primary air heater of the boiler through a low-pressure section drainage inlet pipe 3, and the drainage expansion device 2 is connected with the high-pressure section drainage of the primary air heater of the boiler through a high-pressure section drainage inlet pipe 4.

Wherein, the steam condensation recovery pipe 7 is a U-shaped pipe.

Wherein the U-shaped pipe is a 304 stainless steel pipe.

Wherein, the drainage flash tank 2 is also connected with a demineralized water supplementing pipe 5.

When the utility model is used, the drainage of the high-pressure section and the drainage of the low-pressure section of the primary air heater of the boiler are conducted into the drainage expansion vessel through the drainage inlet pipe of the high-pressure section and the drainage inlet pipe of the low-pressure section, wherein water is discharged into the drainage tank through the pipeline at the bottom of the expansion vessel, a steam condensation recovery pipe is additionally arranged on the exhaust pipe of the drainage expansion vessel, the steam condensation recovery pipe adopts a U-shaped pipe made of stainless steel 304 material, a spray head is arranged in the U-shaped pipe, a plurality of spray nozzles are arranged on the spray head, a cooling outlet pipe is connected with a cooling water source through a cooling water inlet pipe, each cooling outlet pipe is provided with a regulating valve, the independent regulating flow can be realized, the spray nozzles are uniformly distributed in the U-shaped pipe, the channels in the U-shaped pipe are uniformly covered after the cooling water is sprayed out from the spray nozzles, the water mist is sprayed out through the spray nozzles to carry out mixed cooling on the steam in the U-shaped pipeline, the condensed steam is quickly condensed into water, and the condensed water is conveyed into the drainage tank through the drain pipe at the bottom of the U-shaped pipe, and the collection is completed.

While the basic principles and main features of the present utility model and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents. The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims

1. A steam condensation recovery device, comprising a drain tank and a drain expansion tank, wherein the water outlet of the drain expansion tank is connected to the water inlet of the drain tank, the drain expansion tank is connected to a low-pressure section drain inlet pipe and a high-pressure section drain inlet pipe, and the drain expansion tank is also connected to an exhaust pipe, characterized in that: it also includes a steam condensation recovery pipe connected to the exhaust pipe, the steam condensation recovery pipe is connected to a condensation assembly for condensing steam in the steam condensation recovery pipe into water, and the water outlet of the steam condensation recovery pipe is connected to the drain tank through a drain pipe;

The condensation component includes a cooling water inlet pipe for injecting cooling water, and the cooling water inlet pipe is branched into a plurality of cooling water outlet pipes, and the plurality of cooling water outlet pipes are all extended into the steam condensation recovery pipe and are connected with cooling water nozzles, and the plurality of cooling water nozzles are evenly distributed in the steam condensation recovery pipe.

2. A discharged steam condensation recovery device according to claim 1, characterized in that: the cooling water outlet pipe and cooling water nozzle are provided in four groups.

3. A discharged steam condensation recovery device according to claim 2, characterized in that: a plurality of cooling water nozzles are arranged on the cooling water nozzle.

4. The exhaust steam condensation recovery device according to claim 3, characterized in that: at least three cooling water nozzles are provided.

5. The exhaust steam condensation recovery device according to claim 4 is characterized in that: a corresponding regulating valve is provided on the cooling water outlet pipe.

6. A discharged steam condensation recovery device according to claim 1, characterized in that: the lower water outlet of the drain expansion container is connected to the upper water inlet of the drain tank through a pipeline.

7. A discharged steam condensation recovery device according to claim 1, characterized in that: the drain expansion tank is connected to the low-pressure section drain of the boiler primary air heater through the low-pressure section drain inlet pipe, and the drain expansion tank is connected to the high-pressure section drain of the boiler primary air heater through the high-pressure section drain inlet pipe.

8. The exhaust steam condensation recovery device according to claim 1, characterized in that: the steam condensation recovery pipe is a U-shaped pipe; the U-shaped pipe is a 304 stainless steel pipe.

9. The exhaust steam condensation recovery device according to claim 1, characterized in that the hydrophobic expansion tank is also connected to a desalted water replenishment pipe.