CN203615781U

CN203615781U - Low-pressure steam recycling device

Info

Publication number: CN203615781U
Application number: CN201320654658.5U
Authority: CN
Inventors: 曹辉; 陈百怀; 刘海国; 乔光辉; 程利平
Original assignee: LANHAI INDUSTRIAL Co Ltd LUOYANG CITY
Current assignee: LANHAI INDUSTRIAL Co Ltd LUOYANG CITY
Priority date: 2013-10-23
Filing date: 2013-10-23
Publication date: 2014-05-28
Anticipated expiration: 2023-10-23

Abstract

The utility model discloses a low-pressure steam recycling device, and belongs to the field of steam recycling devices. The device comprises a cylindrical casing as well as a funneled nozzle, a steam and water mixing chamber and a pressurizing chamber which are mounted in the casing sequentially, wherein a large opening end of the nozzle corresponds to a water inlet of the casing, and a small opening end penetrates through an annular air flow separator at the middle section of the casing and then is located in a tapered cavity of the steam and water mixing chamber; a large opening end of the steam and water mixing chamber corresponds to the annular air flow separator, and a large opening end of the pressurizing chamber coincides with a steam and water mixture outlet of the casing; a steam inlet is formed in the wall, located between the annular air flow separator and the nozzle, of the casing, and a steam inlet pressure vacuum port is formed in the side wall of the steam inlet; and a device pressure vacuum port is formed in the wall, located between the steam and water mixing chamber and the pressurizing chamber, of the casing. The device can effectively recycle low-pressure steam and effectively reuses the steam through pressurization.

Description

A kind of low pressure steam recovering device

[technical field]

The utility model relates to vapour-recovery unit field, especially relates to a kind of retracting device that can recycling low-pressure steam.

[background technology]

Known, low-pressure steam refers to the steam of low parameter or the low-pressure steam that turbine is got rid of, for example Industrial Boiler and station boiler all can be discharged a large amount of low-pressure steams in running, and the industrial and mining enterprises such as papermaking, pharmacy, forging also can discharge a large amount of low-pressure steams because of technological reason, the low-pressure steam of these discharges is also referred to as exhaust steam, it is often directly discharged in atmosphere, thereby causes its heat containing to be utilized effectively; In addition,, in traditional carbonated drink direct heat transfer, in the time that steam pressure is too low, steam just cannot access arrangement and water exchange, thereby causes realizing heat exchange; On the other hand, existing high-rise heating need to have higher hydraulic pressure, be that traditional carbonated drink direct heat exchanger only can be realized steam-water heat exchanging after the more high-lift water pump of outfit, reach the object of high-rise heating, and this be using great power consumption as cost; At present, along with the day of natural energy resources is becoming tight, how can effectively save the energy just becomes an important research topic.

[summary of the invention]

In order to overcome the deficiency in background technology, the utility model discloses a kind of low pressure steam recovering device, described device can effectively reclaim low-pressure steam, and realizes the effectively object of recycling by supercharging.

For achieving the above object, the utility model adopts following technical scheme:

A kind of low pressure steam recovering device, described device comprises the housing of straight-tube shape, and is arranged on successively funnelform nozzle, steam-water mixing chamber and the pumping chamber of enclosure interior; Described housing one end is made as water inlet, and the other end is made as steam water interface outlet; The corresponding water inlet of described nozzle big opening end, the osculum end of nozzle runs through the air ring that is fixed on stage casing in housing and divides the corresponding conical cavity that is positioned at steam-water mixing chamber after device; The big opening end of described steam-water mixing chamber divides device corresponding with air ring, and the osculum end of steam-water mixing chamber is corresponding with the osculum end of pumping chamber, and the big opening end of pumping chamber overlaps with the outlet of the steam water interface of housing; Housing correspondence divides shell wall between device and the conical cavity of nozzle to be provided with the air intake of a right angle evagination at air ring, and the sidewall stage casing of this air intake is provided with an admission place pressure vacuum mouth; The shell wall of housing correspondence between steam-water mixing chamber osculum end and pumping chamber's osculum end is provided with a device pressure vacuum mouth.

Described low pressure steam recovering device, described nozzle is provided with adjustable pitch device from housing shaft to running fix that can be along.

And corresponding housing wall is provided with device pressure vacuum mouth between the two;

Owing to adopting technical scheme as above, the utlity model has following beneficial effect:

Low pressure steam recovering device described in the utility model is simple in structure, easy operating; Described device can effectively reclaim low-pressure steam; and then realize and utilize the heat of low-pressure steam to carry out steam-water heat exchanging by supercharging; thereby meet the requirement to highrise heating system; this has not only reduced the loss of heat energy; save expending of electric energy; but also energy-saving and emission-reduction are reached, the object of protection of the environment.

[accompanying drawing explanation]

Fig. 1 is schematic diagram of the present utility model.

In figure: 1, housing; 2, water inlet; 3, steam water interface outlet; 4, nozzle; 5, air ring divides device; 6, steam-water mixing chamber; 7, pumping chamber; 8, air intake; 9, admission place pressure vacuum mouth; 10, device pressure vacuum mouth.

[specific embodiment]

Can explain in more detail the present invention by the following examples, open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model, and the utility model is not limited to the following examples:

Low pressure steam recovering device described in 1 by reference to the accompanying drawings, the housing 1 that described device comprises straight-tube shape, and be arranged on successively funnelform nozzle 4, steam-water mixing chamber 6 and the pumping chamber 7 of housing 1 inside; Described housing 1 one end is made as the water inlet 2 for inputting water liquid, the other end of housing 1 is made as the steam water interface outlet 3 for exporting, simultaneously, be fixed with one in the interior stage casing of housing 1 and divide device 5 for the air ring that the low-pressure steam sucking is shunted, and be just arranged on the corresponding air ring of housing 1 and divide the side shell wall between device 5 and the conical cavity of nozzle 4 for sucking the air intake 8 of low-pressure steam, this air intake 8 at right angles cross-like corresponding to housing 1, and the sidewall stage casing of air intake 8 is provided with an admission place pressure vacuum mouth 9; The device pressure vacuum mouth 10 that the shell wall of housing 1 correspondence between steam-water mixing chamber 6 osculum ends and pumping chamber's 7 osculum ends is provided with a pressurization of the mixture for the water in housing 1 and vapour and detects;

The described corresponding water inlet 2 of nozzle 4 big opening ends, the osculum end of nozzle 4 runs through air ring and divides the rear correspondence of device 5 to be positioned at the conical cavity of steam-water mixing chamber 6, be that water liquid is entered by the big opening end of nozzle 4, be then ejected in the conical cavity of steam-water mixing chamber 6 at a high speed by the osculum end of nozzle 4; Now, the flow at high speed of water is at the interior formation air-flow of housing 1, and make this section of cavity between nozzle 4 outer walls and housing 1 form vacuum, be that admission place pressure vacuum mouth 9 is in vacuum state, thereby can be by air intake 8 by low-pressure steam suction casing 1, and the low-pressure steam that makes to suck carries out mixed heat transfer with the water spraying into divide the shunting of device 5 by air ring along housing 1 inside after in the conical cavity of steam-water mixing chamber 6;

The big opening end of described steam-water mixing chamber 6 divides device 5 corresponding with air ring, thereby is beneficial to full and uniform the entering in steam-water mixing chamber 6 of low-pressure steam of suction; The osculum end of steam-water mixing chamber 6 is corresponding with the osculum end of pumping chamber 7, thereby is convenient to enter in pumping chamber 7 at a high speed at water, the vapour of the 6 interior mixing of steam-water mixing chamber; The big opening end of pumping chamber 7 overlaps with the steam water interface outlet 3 of housing 1, and the steam water interface that utilizes the conical cavity of pumping chamber 7 to make to enter in pumping chamber 7 reduces flow velocity, and reaches the object being output under elevated pressures; For ease of regulating nozzle 4 to spray the flow velocity of water according to the concrete condition of low-pressure steam, so that water reaches relative best admixture with vapour, described nozzle 4 is provided with an adjustable pitch device that can move axially and locate along housing 1, thereby reaches the object of being convenient to adjust spacing between nozzle 4 and steam-water mixing chamber 6.

While implementing low pressure steam recovering device described in the utility model, only described housing 1 need be fastened in corresponding pipeline, more can use after air intake 8 is connected with the pipeline of corresponding discharge low-pressure steam; Water enters housing 1 by water inlet 2 afterspray with high flow rate through nozzle 4, make admission place pressure vacuum mouth 9 in vacuum state, thereby by air intake 8, low-pressure steam is sucked, the low-pressure steam sucking is mixed to form two-phase fluid field with the water spraying into after air ring divides device 5 shuntings in steam-water mixing chamber 6, and vapour and water start fully to exchange; According to two phase flow characteristic, in gas-vapor mix, the velocity of sound only has 10 meter per seconds, and steam water interface stream scooter 40 meter per seconds, therefore, steam water interface can form Supersonic Flow; When steam water interface forms Supersonic Flow, and while flowing with high-speed smooth in the straight length of steam-water mixing chamber 6, vapour fully mixes with water, thereby 10 places form vacuum at device pressure vacuum mouth, and then steam water interface can be changed by the subsonic flow of supersonic flow trend in the time entering the straight length of pumping chamber 7, and while mineralization pressure shock wave, finally utilize described device to reach the object with elevated pressures output with uniform temperature hot water.

The utility model does not describe part in detail for prior art, therefore the utility model is not described in detail.

Claims

1. a low pressure steam recovering device, it is characterized in that: described device comprises the housing of straight-tube shape (1), and be arranged on successively housing (1) inner funnelform nozzle (4), steam-water mixing chamber (6) and pumping chamber (7); Described housing (1) one end is made as water inlet (2), and the other end is made as steam water interface outlet (3); The corresponding water inlet of described nozzle (4) big opening end (2), the osculum end of nozzle (4) run through the air ring that is fixed on interior the stage casing of housing (1) divide device (5) afterwards correspondence be positioned at the conical cavity of steam-water mixing chamber (6); The big opening end of described steam-water mixing chamber (6) divides device (5) corresponding with air ring, the osculum end of steam-water mixing chamber (6) is corresponding with the osculum end of pumping chamber (7), and the big opening end of pumping chamber (7) overlaps with the steam water interface outlet (3) of housing (1); Housing (1) correspondence is positioned at air ring and divides shell wall between device (5) and the conical cavity of nozzle (4) to be provided with the air intake (8) of a right angle evagination, and the sidewall stage casing of this air intake (8) is provided with an admission place pressure vacuum mouth (9); The shell wall that housing (1) correspondence is positioned between steam-water mixing chamber (6) osculum end and pumping chamber (7) osculum end is provided with a device pressure vacuum mouth (10).

2. low pressure steam recovering device according to claim 1, is characterized in that: described nozzle (4) is provided with the adjustable pitch device that can move axially along housing (1) location.