CN2220585Y

CN2220585Y - Sealed indirect cooling steam boiler

Info

Publication number: CN2220585Y
Application number: CN 95210157
Authority: CN
Inventors: 李福乐
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-12
Filing date: 1995-05-12
Publication date: 1996-02-21
Anticipated expiration: 2005-05-12

Abstract

The utility model relates to a sealed indirect cooling steam boiler, which comprises a boiler shell whose inlet end and outlet end are communicated with a and heat exchanger, a water inlet valve, an exhaust valve, and a cistern which is parallel to the boiler shell. The water is exhausted to the furnace chamber of the boiler by the cistern through a check valve. The upper side end of the furnace chamber of the boiler is communicated with a check valve, and then is connected with the heatexchanger. The top end of the furnace chamber of the boiler is provided with a gap, and the water surface of the opening of the furnace chamber is provided with a ball float structure. The steam temperature in the boiler can be regulated automatically, the circulating water can be utilized fully, the fuel consumption can be saved, and the inner side of the boiler can be preheated. The utility model has the advantages of safety assurance, simple structure, and low cost. The utility model is suitable for areas with no power and less electricity.

Description

Closed indirect cooling steam boiler

The utility model relate to a kind of with the position, arrange or be configured to the steam superheater of characteristics, especially a kind of by the indirect device of cooling or preheating water in closed secondary unit.

Public steam boiler, its security protection is all in all major issue, and the device of supervision commonly used and control temperature adopts the simple instrument of artificial observation more, this mode often is subjected to the influence of operating personnel's working attitude and sense of responsibility, has many unsafe factors.By sensor or micro-processor controlled automatic control system complex structure, cost is also higher relatively.For some easy miniature boilers, high-precision instrument for automatic control can be subjected to some restrictions on using.

The purpose of this utility model, be to propose a kind of closed indirect cooling steam boiler, it is by an enclosed auxiliary heat exchange cistern, and the temperature of steam regulation boiler and from trend boiler supplying heat recirculated water is simple in structure automatically, guarantees safety.

Utility model is achieved in that a kind of closed indirect cooling steam boiler, comprise boiler 1, water intaking valve and air bleeding valve that its in-out end is communicated with heat exchanger, it is characterized in that: boiler shell is arranged side by side a cistern 2, the affixed non-return valve 5 of cistern 2 lower end water pipes is communicated with boiler furnace chamber 1, the affixed blast pipe 3 in cistern top, described blast pipe 3 is affixed with the boiler top, and the boiler upside is by blast pipe 61 and be connected in series non-return valve 6; Unsteady ball float structure on boiler furnace chamber water level.The ball float structure is by upper floating ball 10, following ball float 9, and upper floating ball is the butt taper, and the bottom width 101 of upper floating ball is greater than boiler gap width 11.

The utility model is applicable to the heating of shorts of electricity such as rural area, industrial and mineral and power leakage area, regulates boiler temperature automatically, and simple in structure, cost is low, and is safe and reliable, makes full use of recirculated water, fuel saving consumption.

Fig. 1 is the utility model structural profile schematic diagram;

Fig. 2 is that steam boiler ball float structural representation one water level descends, and blast pipe is in open mode.

Now further narrate structure of the present utility model in conjunction with the accompanying drawings:

Referring to Fig. 1-2, the lower end of steam boiler 1 is communicated with the cold water of cisterns 2, cistern 2 by non-return valve 5 can unidirectional inflow boiler furnace 1, the upside of boiler 1 connects non-return valve 6, be communicated with heat exchanger 7 by this against current valve 6, after heating, water vapour in the boiler 1 can unidirectionally enter heat exchanger 7, and the condensed water of discharging in the heat exchanger 7 flows into cistern 2 by pipeline 8, water intaking valve 4 is set in the upside of cistern 2 replenishes feeding cold water.One breach 11 is set on the top of boiler 1, floated on the boiler water surface by the ball float structure that thick stick spare, upper and lower ball float are formed, it is spherical that following ball float 9 is the garden, and lever and upper and lower ball float are affixed, upper floating ball is the butt taper, and its garden awl bottom width 101 is greater than the width of boiler top breach 11.

In boiler furnace 1, be in high water level, ball float rises, the butt garden wimble fraction of upper floating ball 10 passes boiler top breach 11, when the bottom surface 101 of upper floating ball is resisted against breach 11 places, boiler top, blast pipe 3 sealings, with producing a large amount of steam in the boiler of fuel heating back, steam promotes and opens non-return valve 6, makes steam enter heat exchanger 7 to the water in the boiler, continuous heating along with water in the boiler 1, water constantly becomes steam, and boiler middle water level water is fallen, and following ball float 9 descends along with the decline of boiler water level, thereby the bottom surface 101 of upper floating ball is disengaged with boiler top breach 11, at this moment blast pipe 3 is opened, and part steam enters cistern 2 by blast pipe 3, meanwhile, steam in the heat exchanger 7 is through heat radiation, vapor (steam) temperature reduces, and condensation becomes water again, and flows into cistern 2 by pipeline 8; Both all impel the water level in the cistern 2, and water temperature raises, and cistern 2 impels non-return valve 5 to open with the water-head of boiler furnace 1, and the water that water storage is clamored flows into boiler furnace, because the glassware for drinking water that flows into has certain temperature, can save the fuel consumption in the boiler.Along with the water level in the boiler furnace 1 rises, promote to float and rise once more, seal blast pipe 3 again, so circulation is carried out repeatedly.

Claims

1, a kind of closed indirect cooling steam boiler, comprise boiler (1), water intaking valve and air bleeding valve that its in-out end is communicated with heat exchanger, it is characterized in that: boiler shell is arranged side by side a cistern (2), cistern (2) the affixed non-return valve of lower end water pipe (5) is communicated with boiler furnace chamber (1), the affixed blast pipe in cistern top (3), described blast pipe (3) is affixed with the boiler top, and the boiler upside is by blast pipe (61) and be connected in series non-return valve (6); Unsteady ball float structure on boiler furnace chamber water level.

2, by the described closed indirect cooling steam boiler of claim 1, it is characterized in that: the ball float structure is by upper floating ball (10), following ball float (9), and upper floating ball is the butt taper, and the bottom width of upper floating ball (101) is greater than boiler gap width (11).