CN214745678U

CN214745678U - Steam waste heat recovery system

Info

Publication number: CN214745678U
Application number: CN202120936544.4U
Authority: CN
Inventors: 裴乾洪; 陈孝周; 江勇; 文伯勇; 张海涛
Original assignee: Chongqing Xingfa Jinguan Chemical Co ltd
Current assignee: Chongqing Xingfa Jinguan Chemical Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-16
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to a steam waste heat recovery system, including desalination water tank, condensation water pitcher, spray pump, first pipeline is connected to the condensation water pitcher for receive the high temperature comdenstion water that steam equipment produced, the top of condensation water pitcher sets up steam blow-down pipe, steam blow-down pipe's top sets up the shower head, the desalination water pitcher links to each other through the bottom of second pipeline with the condensation water pitcher, and connects the third pipeline for provide the desalination water to the boiler, spray pump's water inlet passes through the fourth pipeline and links to each other with soft water source, and spray pump's delivery port provides high-pressure soft water through the fifth pipeline to the shower head. The utility model has the advantages of being simple in structure and convenient in operation, the waste heat of the high temperature comdenstion water that can effectively utilize steam plant to generate retrieves soft water and reduces the energy consumption of boiler.

Description

Steam waste heat recovery system

Technical Field

The utility model relates to a chemical industry field, in particular to steam waste heat recovery system.

Background

Chemical industry enterprise utilizes the boiler to generate a large amount of steam with soft water and supplies other steam plant to use in the production operation, and the steam after the use is exothermic the condensation, arranges to steam condensation water pitcher and keeps in. The steam condensate water is high-temperature water, and a large amount of steam is emptied at the top of the emptying pipe of the steam condensate water tank, so that heat waste is caused, and meanwhile, visual pollution is formed and soft water escape waste is caused.

Therefore, how to effectively recycle the waste heat of the steam is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The utility model aims at prior art not enough, provide a steam waste heat recovery system, its simple structure, convenient operation can effectively utilize the waste heat of the high temperature comdenstion water that steam equipment generated, retrieve the soft water and reduce the energy consumption of boiler.

The technical scheme of the utility model is that: the utility model provides a steam waste heat recovery system, includes desalination water tank, condensation water tank, spray pump, first pipeline is connected to the condensation water tank for receive the high temperature comdenstion water that steam plant produced, the top of condensation water tank sets up steam blow-down pipe, the top of steam blow-down pipe sets up the shower head, the desalination water tank passes through the second pipeline and links to each other with the bottom of condensation water tank, and connects the third pipeline for provide the desalination water to the boiler, spray pump's water inlet links to each other with soft water source through the fourth pipeline, and spray pump's delivery port provides high-pressure soft water through the fifth pipeline to the shower head.

Still include spray tank, spray tank is connected with the soft water source, and is used for providing the soft water to spray pump through the fourth pipeline.

The desalted water tank is connected with the spray water tank through a sixth pipeline, desalted water is provided for the spray water tank, and a valve is arranged on the sixth pipeline.

The number of the spray headers is multiple, the spray headers are uniformly distributed along the circumference of the steam vent pipe, and the nozzles of the spray headers face the center of the steam vent pipe along the radial direction.

Adopt above-mentioned technical scheme to have following beneficial effect:

1. the steam waste heat recovery system comprises a desalting water tank, a condensate water tank and a spray water pump. The first pipeline is connected to the condensate tank for receive the high temperature comdenstion water that steam equipment produced, the top of condensate tank sets up steam blow-down pipe, and the high temperature comdenstion water that steam equipment produced gets into in the condensate tank through first pipeline, keeps in, and the steam that high temperature comdenstion water produced in the condensate tank along steam blow-down pipe discharge condensate tank, reduces the interior empty pressure of condensate tank, guarantees that the high temperature comdenstion water that steam equipment produced gets into the condensate tank smoothly. The top of steam blow-down pipe sets up the shower nozzle, forms the water curtain at the top of steam blow-down pipe through the shower nozzle, sprays the cooling to the vapor of emptying, returns to in the high temperature comdenstion water jar, retrieves soft water and has eliminated visual pollution. The desalted water tank is connected with the bottom of the condensate water tank through the second pipeline and is connected with the third pipeline, desalted water is provided for the boiler, high-temperature condensate water temporarily stored in the condensate water tank returns to the desalted water tank, and the desalted water tank enters the boiler to be used for generating high-temperature steam, so that the energy consumption of the boiler for generating the high-temperature steam can be effectively reduced, and the production cost of enterprises is reduced. Spray water pump's water inlet passes through the fourth pipeline and links to each other with soft water source, spray water pump's delivery port provides high-pressure soft water through the fifth pipeline to the shower head, soft water source is the normal atmospheric temperature soft water of chemical enterprise softened water system output, deliver to steam blow-down pipe through spray water pump, form high-pressure soft water, top at steam blow-down pipe forms the water curtain, spray the cooling to the vapor of emptying, on retrieving the soft water and eliminating visual pollution's basis, still with the steam heat transfer of unloading, heat up, fully retrieve the heat of steam, obtain high temperature soft water, return with high-temperature high condensate and loopback to the boiler and produce steam, can effectively reduce the energy consumption that the boiler generated high temperature steam.

2. Still include spray tank, spray tank links to each other with the soft water source, and is used for providing soft water to spray pump through the fourth pipeline, and the demineralized water case links to each other with spray tank through the sixth pipeline, provides the demineralized water to spray tank, is equipped with the valve on this sixth pipeline, stops to the temperature reduction after the high temperature comdenstion water that returns to the demineralized water case for a long time, and the valve is opened to the accessible is discharged to spray tank with the comdenstion water after the part cooling, uses as the shower water.

3. The quantity of shower head is a plurality of, along the circumference evenly distributed of steam blow-down pipe, and the nozzle of each shower head is along radial towards the center of steam blow-down pipe, guarantees to form even water curtain at the top of steam blow-down pipe, improves the heat transfer area with steam, and effectively reduces the escape volume of soft water.

The following further description is made with reference to the accompanying drawings and detailed description.

Drawings

Fig. 1 is a schematic connection diagram of the present invention.

In the attached drawing, 1 is a desalted water tank, 2 is a condensed water tank, 3 is a spray water pump, 4 is a steam blow-down pipe, 5 is a spray head, 6 is a spray water tank, 7 is a valve, 11 is a first pipeline, 12 is a second pipeline, 13 is a third pipeline, 14 is a fourth pipeline, 15 is a fifth pipeline, and 16 is a sixth pipeline.

Detailed Description

The utility model discloses in, do not mark equipment, the part of concrete structure or model select for use the equipment or the part of chemical industry field conventionality usually, do not mark the connected mode that connected mode or the manufacturer's suggestion that are chemical industry field conventionality usually of concrete connected mode.

Referring to fig. 1, a specific embodiment of a steam waste heat recovery system is shown. The steam waste heat recovery system comprises a desalted water tank 1, a condensed water tank 2 and a spray water pump 3. The condensate tank 2 is connected to a first pipeline 11 for receiving high-temperature condensate generated by the steam plant, and typically, a downstream end of the first pipeline is disposed at an upper portion of a sidewall of the condensate tank, and an upstream end of the first pipeline may be connected to a plurality of water outlets of the steam plant. Steam blow-down pipe 4 is set up at the top of condensate tank 2, steam blow-down pipe 4's top sets up shower head 5, and in this embodiment, steam blow-down pipe is vertical to be extended up, and the quantity of shower head 5 is a plurality of, along steam blow-down pipe 4's circumference evenly distributed, and the nozzle of each shower head 5 is along the center of radial steam blow-down pipe 4 towards. The desalination water tank 1 is connected with the bottom of the condensate water tank 2 through the second pipeline 12, and is connected with the third pipeline 13, and is used for providing desalination water for the boiler, generally, the height of the desalination water tank can be set below the condensate water tank and positioned above the boiler, so that high-temperature condensate water in the condensate water tank enters the desalination water tank under the action of gravity, and the high-temperature condensate water in the desalination water tank enters the boiler under the action of gravity, and certainly, the high-temperature condensate water can also be driven to flow by adopting a pumping mode. The water inlet of spray water pump 3 links to each other with soft water source through fourth pipeline 14, and spray water pump 3's delivery port provides high-pressure soft water through fifth pipeline 15 to shower head 5, in this embodiment, still includes spray water tank 6, spray water tank 6 links to each other with soft water source, and is used for providing soft water to spray water pump 3 through fourth pipeline 14, desalination water tank 1 links to each other with spray water tank 6 through sixth pipeline 16, provides the desalinization water to spray water tank 6, is equipped with valve 7 on this sixth pipeline 16.

The utility model discloses a theory of operation does: steam that the boiler generated is behind steam equipment utilization, the high temperature comdenstion water that generates gets into the condensate water jar and keeps in, these high temperature comdenstion water aquatic vapor, it rises along steam blow-down pipe, open spray water pump, send the normal atmospheric temperature (25 ℃) soft water of softened water system output to a plurality of shower nozzles at steam blow-down pipe top through the pressurization, form the water curtain, to the steam spray cooling of emptying, retrieve the comdenstion water and abundant heat transfer heat-up to 80-90 ℃, flow back to in the comdenstion water jar, get into the desalination water tank through the second pipeline, then send to the boiler, generate steam, can effectively reduce boiler energy consumption. When the temperature of high-temperature condensate in the desalting water tank is lower (25 ℃), the valve can be opened, and the cooled condensate is sent to the spray water tank and pumped to the plurality of spray headers at the top of the steam blow-down pipe by the spray water pump.

Claims

1. The utility model provides a steam waste heat recovery system which characterized in that: comprises a desalted water tank (1), a condensed water tank (2) and a spray water pump (3),

the condensed water tank (2) is connected with a first pipeline (11) and used for receiving high-temperature condensed water generated by steam equipment, the top of the condensed water tank (2) is provided with a steam vent pipe (4), the top of the steam vent pipe (4) is provided with a spray header (5),

the desalting water tank (1) is connected with the bottom of the condensed water tank (2) through a second pipeline (12) and is connected with a third pipeline (13) for providing desalting water for a boiler,

the water inlet of the spray water pump (3) is connected with a soft water source through a fourth pipeline (14), and the water outlet of the spray water pump (3) provides high-pressure soft water for the spray head (5) through a fifth pipeline (15).

2. The steam waste heat recovery system of claim 1, wherein: still include spray tank (6), spray tank (6) are connected with the soft water source, and are used for providing soft water to spray pump (3) through fourth pipeline (14).

3. The steam waste heat recovery system of claim 2, wherein: the desalting water tank (1) is connected with the spray water tank (6) through a sixth pipeline (16) and used for providing desalting water for the spray water tank (6), and a valve (7) is arranged on the sixth pipeline (16).

4. The steam waste heat recovery system of claim 1, wherein: the number of the spray headers (5) is multiple, the spray headers are uniformly distributed along the circumference of the steam vent pipe (4), and the nozzles of the spray headers (5) face the center of the steam vent pipe (4) along the radial direction.