CN102435053A

CN102435053A - Drying method using own evaporated gas to perform thermal cycle

Info

Publication number: CN102435053A
Application number: CN201110231464XA
Authority: CN
Inventors: 冯益安
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-06
Filing date: 2011-08-06
Publication date: 2012-05-02

Abstract

The invention provides a drying method using own evaporated gas to perform thermal cycle, relating to the technology of carrying out vacuum drying by using heat contained in own water vapor. In the invention, a sealed drying box or a drying chamber and a vapor outlet thereof, an air exhauster or a vacuum pump, a circulating pipe type heater, a condenser, a liquid outlet and a waste gas outlet are included. The above components are characterized in that: the condenser (7) and heating circulating pipes (4), (5) and (6) which are connected with the condenser are arranged in the sealed drying box or the drying chamber (3) and are connected with the vapor outlet (1) and a vapor inlet (2) of the sealed drying box or the drying chamber (3) through the vacuum pump or the air exhauster; water in the sealed drying box or the drying chamber (3) is evaporated under a low pressure; the heat contained in the water vapor is transmitted to objects to be dried through the heating circulating pipes (4), (5) and (6) in a pressurizing condition. In the method, the evaporated latent heat of the own vapor is repeatedly absorbed and utilized so as to dry the objects at a low temperature in an energy-saving and rapid manner.

Description

A kind of drying means that utilizes self boil-off gas to carry out thermal cycle

Technical field: vacuum drying

Background technology:

Present vacuum drying already need consume a large amount of thermals source, and normally electrical heating or steam also have fire coal, fuel oil, combustion gas.And containing a large amount of steam in the gas that vavuum pump or air exhauster are discharged, steam contains a large amount of latent heats of vaporization, and this part energy emission causes the thermal pollution of environment and the significant wastage of resource in atmosphere.

Summary of the invention:

Vacuum drying already need consume a large amount of thermals source, and normally electrical heating or steam also have fire coal, fuel oil, combustion gas.And containing a large amount of steam in the gas that vavuum pump or air exhauster are discharged, steam contains a large amount of latent heats of vaporization, and this part energy emission causes the thermal pollution of environment and the significant wastage of resource in atmosphere.

A kind of drying means that utilizes self boil-off gas to carry out thermal cycle belongs to the vacuum drying industry; Relating to a kind of pin utilizes self steam institute heat content to carry out vacuum drying technology; Comprise hermetically drying case or dryness storehouse and vapor outlet port thereof, air exhauster or vavuum pump, circulation tube heater, condenser, liquid outlet, outlet port; It is characterized in that: condenser (7) is with in the heat cycles pipe (4), (5), (6) that are connected with condenser are placed in hermetically drying case or dryness storehouse (3); And pressure-bearing readily conducts heat, and a common steam inlet (2) is arranged, and connects the steam (vapor) outlet (1) and the steam inlet (2) of hermetically drying case or dryness storehouse (3) through vavuum pump or air exhauster; (7) pressure higher temperature is higher in the condenser; Interior (3) pressure of hermetically drying case is lower and temperature is lower, and the moisture in hermetically drying case or the dryness storehouse (3) under low pressure evaporates, and steam institute heat content is conducted under the situation of pressurization to needing dry article through heat cycles pipe (4), (5), (6).The moisture of the dry goods constantly condensation through circulation pipe (4), (5), (6) and condenser (7) at last of evaporation under low pressure becomes liquid and is discharged by liquid outlet (10).

The method can repeat the latent heat of vaporization of self steam to absorb carries out low temperature drying, energy-conservation and quick.

Description of drawings

Accompanying drawing 1 is a kind of loop structure sketch map that utilizes self boil-off gas to carry out the drying means of thermal cycle.Wherein 1, steam (vapor) outlet; 2, steam inlet; 3, hermetically drying case or dryness storehouse; 4, heat cycles pipe; 5, heat cycles pipe; 6, heat cycles pipe; 7, condenser; 8, condenser gas discharge outlet; 9, the chain between circulation pipe is taken over; 10, liquid outlet; 11, circulation pipe import; 12, the chain between circulation pipe is taken over; 13, circulation pipe outlet.

The specific embodiment

Once explain in conjunction with accompanying drawing:

Comprise system sealing drying box or dryness storehouse and vapor outlet port thereof, air exhauster or vavuum pump, circulation tube heater, condenser, liquid outlet, outlet port; But Fig. 1 does not express air exhauster or vavuum pump, need between steam (vapor) outlet (1) and steam inlet (2), connect.

Do not represent supporting bracket in drying box or the dryness storehouse (3) among the figure, can do shelf after wherein circulation pipe (4), (5), (6) are fixed and handle.

Primary structure is: condenser (7) is with in the heat cycles pipe (4), (5), (6) that are connected with condenser are placed in hermetically drying case or dryness storehouse (3); And pressure-bearing readily conducts heat; Condenser (7) has a common steam inlet (2) with the heat cycles pipe (4), (5), (6) that are connected with condenser; The steam (vapor) outlet (1) and the steam inlet (2) that connect hermetically drying case or dryness storehouse (3) through vavuum pump or air exhauster; Under the effect of air exhauster or vavuum pump, (7) pressure higher temperature is higher in the condenser, and interior (3) pressure of hermetically drying case is lower and temperature is lower; Moisture in hermetically drying case or the dryness storehouse (3) under low pressure evaporates; Steam institute heat content is given and is needed dry article through heat cycles pipe (4), (5), (6) conduction under the situation of vavuum pump or air exhauster pressurization through heat cycles pipe (4), (5), (6), and wherein heat cycles pipe (4), (5), (6) are a kind of structure method for expressing, in reality is made, multilayer can be arranged.The heat cycles pipe also can be helicoidal structure, flat spin structure, vertical spin structure, delamination helix structure, and what represent among Fig. 1 is the delamination helix structure.

The moisture of the dry goods constantly condensation through circulation pipe (4), (5), (6) and condenser (7) at last of evaporation under low pressure becomes liquid and is discharged by liquid outlet (10).

Claims

1. drying means that utilizes self boil-off gas to carry out thermal cycle; System architecture comprises hermetically drying case or dryness storehouse and vapor outlet port, air exhauster or vavuum pump, circulation tube heater, condenser, liquid outlet, outlet port; It is characterized in that: condenser (7) is with in the heat cycles pipe (4), (5), (6) that are connected with condenser are placed in hermetically drying case or dryness storehouse (3); And pressure-bearing readily conducts heat; A common steam inlet (2) is arranged; The steam (vapor) outlet (1) and the steam inlet (2) that connect hermetically drying case or dryness storehouse (3) through vavuum pump or air exhauster; (7) are higher at the pressure effect downforce higher temperature of vavuum pump or air exhauster in the condenser, and interior (3) pressure of hermetically drying case is lower and temperature is lower, and the moisture in hermetically drying case or the dryness storehouse (3) under low pressure evaporates; Steam institute heat content is given through heat cycles pipe (4), (5), (6) conduction under the situation of pressurization needs dry article, and the moisture of the dry goods constantly condensation through circulation pipe (4), (5), (6) and condenser (7) at last of evaporation under low pressure becomes liquid and discharged by liquid outlet (10).