CN203100474U

CN203100474U - Steam-water mixer

Info

Publication number: CN203100474U
Application number: CN 201320137404
Authority: CN
Inventors: 冯士活
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2013-03-09
Filing date: 2013-03-09
Publication date: 2013-07-31
Anticipated expiration: 2023-03-09

Abstract

The utility model discloses a steam-water mixer. The steam-water mixer is composed of a high temperature steam inlet, a cooling water inlet, a valve body, a Venturi tube and a hot water outlet, wherein the Venturi tube composed of a constricted tube, a choke and a diffusion tube is embedded in the valve body, the choke has a plurality of inclined through holes so that the cooling water is capable of fast flowing in the choke from the cooling water inlet; after flowing in from the cooling water inlet, the cooling water is capable of fast flowing in the choke through the plurality of inclined through holes in the choke, the high temperature steam is introduced from the high temperature steam inlet, the high temperature fog drop is formed by the collision of the cooling water and the high temperature steam, the high temperature fog drop is condensed as water through the diffusion tube, and the water after heat exchange is capable of flowing out from the hot water outlet.

Description

Steam heater

Technical field

The utility model relates to a kind of steam heater, belongs to energy-efficient heat-exchange apparatus technical field.

Background technology

At present, the heat exchanger that steam is carried out waste heat recovery all adopts heat-exchanger rigs such as tubulation, coil pipe and sleeve pipe, belongs to the indirect heat exchange mode, steam and water are in the intrastratal flow of isolating mutually, steam does not directly contact with water, and heat exchange efficiency is low, and it is low to reclaim water temperature, generally be lower than 50 ℃, and because the heat exchanger interior conduit is long, steam flow is little, and system pressure is greater than 0.1MPa, the heat recovery system resistance is big, and the heat transfer rate is slow; In addition, the parts of this type of heat exchanger are many, complex structure, equipment investment are big, and therefore, the waste heat recovery of exhaust steam does not for many years all reach ideal effect.

The utility model content

The purpose of this utility model provide a kind of simple in structure, heat exchange efficiency is high, reclaim the high steam heater of water temperature.

The utility model adopts following technical scheme:

Steam heater is made up of high-temperature steam import, cooling water inlet, valve body, Venturi tube and hot water outlet.

Described valve body is embedded with a Venturi tube, and Venturi tube is made up of collapsible tube, trunnion and anemostat, and trunnion has some oblique through holes, makes cold water to flow in the trunnion fast from cooling water inlet.

Described collapsible tube and anemostat are cone-shaped pipe, and collapsible tube is connected by trunnion with anemostat.

Cold water flows into from cooling water inlet, flow into trunnion fast by the some oblique through hole on the trunnion, high-temperature steam feeds from the high-temperature steam import, and cold water and high-temperature steam bump against formation high temperature droplet, the high temperature droplet condenses into water through anemostat again, and the water after heat is changed flows out from hot water outlet again.

Steam heater of the present utility model adopts cold water and the heat exchange mode that high-temperature steam directly contacts, and has cancelled original numerous pipeline, has reduced the resistance of heat recovery system, has advantages such as simple in structure, that heat exchange efficiency is high, hot throw-over degree is fast.

Description of drawings

Fig. 1 is the utility model complete section structural representation.

Wherein: 1. valve body, 2. Venturi tube, 3. collapsible tube, 4. trunnion, 5. oblique through hole, 6. anemostat, 7. high-temperature steam import, 8. cooling water inlet, 9. hot water outlet.

The specific embodiment

As shown in Figure 1, steam heater is made up of high-temperature steam import 7, cooling water inlet 8, valve body 1, Venturi tube 2 and hot water outlet 9.

Described valve body 1 is embedded with a Venturi tube 2, and Venturi tube 2 is made up of collapsible tube 3, trunnion 4 and anemostat 6, and trunnion 4 has some oblique through holes 5, makes cold water to flow in the trunnion 4 fast from cooling water inlet 8.

Described collapsible tube 3 is a cone-shaped pipe with anemostat 6, and collapsible tube 3 is connected by trunnion 4 with anemostat 6.

Cold water flows into from cooling water inlet 8, flow into trunnion 4 fast by the some oblique through hole on the trunnion 45, high-temperature steam feeds from high-temperature steam import 7, and cold water and high-temperature steam bump against formation high temperature droplet, the high temperature droplet condenses into water through anemostat 6 again, and the water after heat is changed flows out from hot water outlet 9 again.

Form droplet because cold water and high-temperature steam bump against, thereby make the cold water heat exchange, make cold water water and high-temperature steam heat exchange more efficiently, to improve heat exchange efficiency.

Claims

1. steam heater, form by high-temperature steam import (7), cooling water inlet (8), valve body (1), Venturi tube (2) and hot water outlet (9), it is characterized in that: described valve body (1) is embedded with a Venturi tube (2), Venturi tube (2) is made up of collapsible tube (3), trunnion (4) and anemostat (6), trunnion (4) has some oblique through holes (5), described collapsible tube (3) is a cone-shaped pipe with anemostat (6), and collapsible tube (3) is connected by trunnion (4) with anemostat (6).