CN2199399Y

CN2199399Y - Looping heat-insulation cover for valve

Info

Publication number: CN2199399Y
Application number: CN 94230108
Authority: CN
Inventors: 聂广瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-30
Filing date: 1994-08-30
Publication date: 1995-05-31
Anticipated expiration: 2004-08-30

Abstract

The utility model belongs to the technical field of the heat-insulation of a valve, particularly a looping heat-insulation cover for a valve. The outer part of the utility model is provided with an outer shaped sheet iron shell, and the inner part is sheathed with a heat-insulation film. A pair of assembly pieces are connected through two semicircle cylinders in a saddle form and butted to form the outer shaped sheet iron shell, and the utility model is combined into a looping structure which is convenient to install and dismount through a fixing clip which is arranged along the outer shaped sheet iron shell. The utility model has the advantages of convenient construction, good heat-insulation effect, long service life and beautiful appearance, and can be used for heat-insulation of the industries such as the petroleum industry, the chemical industry, etc. The utility model is a new product with great development prospect.

Description

Looping heat-insulation cover for valve

The utility model belongs to valve heat preservation technology field, is specifically related to a kind of loop type valve insulation cover.

The valve insulation is always ignored by people.Add up according to investigations, the High temperature valve in the petrochemical enterprise has 70% to expose outside approximately, and its thermal loss is considerable.And Heat-insulation valve about 30% is only arranged, major part is to adopt pearlite brick to build by laying bricks or stones again, smears asbestos plaster outward.There is following problem in this insulating structure: the first, and construction is complicated.During construction, pearlite brick is laid on the valve body surface, be fixed, twine silk screen then, smear the asbestos plaster of the thick blending cement of one deck 20mm at last with iron wire.The second, heat insulation effect is poor.Because perlitic thermal conductivity is big, and it is more to build the slit by laying bricks or stones, and thermal loss is also bigger, so heat insulation effect is just poor.The 3rd, dismounting inconvenience during maintenance because of valve very easily leaks, often needs maintenance, and every like this maintenance once will destroy being incubated also insulation again once, and not only constructing to maintenance makes troubles, and wastes thermal insulating material.In addition, also have some other heat preserving method, as: the prefabricated pipe shell structure; Non-type iron sheet shell structure; Wrapping structure or the like, its existing problems are basic identical with the pearlite brick insulating structure.

The purpose of this utility model provides a kind of high insulating effect, long service life, the loop type valve insulation cover of construction, easy to maintenance and beautiful shape.

The utility model is an a kind of peripheral hardware typing iron sheet outer casing, in be with the loop type valve insulation cover of thermal insulation film.The typing iron sheet outer casing is to be made of with 1 pair of assembly parts butt joint that the saddle form connects the cylinder of two semicircles.By it being combined into the loop type structure of being convenient to mount and dismount along the set fixation clamp of its typing iron sheet outer casing.The loop type valve insulation cover that adopts said structure to constitute, outward appearance shape such as threeway, both clean and tidy, attractive in appearance again, and heat insulation effect is good.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is structural representation of the present utility model (sectional view);

Fig. 2 is the worm's eye view of Fig. 1;

Fig. 3 is the plan view of Fig. 1;

Fig. 4 is the side view of Fig. 3;

Fig. 5 is the plan view of Fig. 3;

Fig. 6 is the a-a sectional view of Fig. 2 and Fig. 5;

Fig. 7 is the b-b sectional view of Fig. 2 and Fig. 3;

Fig. 8 is the c-c sectional view of Fig. 3;

Fig. 9 is the d-d sectional view of Fig. 2, fixation clamp schematic representation promptly of the present utility model.

Figure 10 is the e-e sectional view of Fig. 2.

What the utility model adopted is peripheral hardware typing iron sheet outer casing 1, the loop type structure of interior cover thermal insulation film 2.Thermal insulation film 2 can be selected different thermal insulating materials for use according to different temperatures, is generally selecting for use rock wool to do thermal insulation film below 500 ℃, selects for use aluminosilicate material to do thermal insulation film for 500-1000 ℃.Thermal insulation film is to make mold with the typing iron sheet, selects for use the mineral wool cartridge size measure-alike with the typing iron sheet then, forms with high temperature adhesive is bonding, and by the vertical center line dimidiation, forms two independently film bodies.The typing iron sheet outer casing is to utilize a kind of split kink manual and that machining is synthetic, and shape is corresponding with thermal insulation film 2, and is also by the vertical center line dimidiation, fixing by the 6 pairs of clamps 3 that are provided with along its assemble line.Every half-shells is connected as one with taking out heart aluminum rivet with the saddle form by the disc of two semicircles, and go out two groove bands (seeing the b-b sectional view) along the radial punch of shell, to strengthen the intensity and the aesthetic feeling of shell, the end face angle of shell adopts the seaming form to connect (seeing the a-a sectional view).

The utility model can be produced series product according to the model of valve.When stack mounting, rock wool, alumina silicate thermal insulation film directly are buckled on the valve body, iron sheet outer casing is installed then, also rock wool, alumina silicate thermal insulation film can be put in earlier in the typing iron sheet outer casing, and then be enclosed within on the valve body, fix with clamp at last.

The utlity model has following advantage:

1, easy construction. The utility model is the loop type structure, is fixed on the valve body with clamp during construction, so installing/dismounting is very convenient, has both alleviated workman's labour intensity, has saved again insulation material.

2, high insulating effect. Because the gap of the gap of insulation film and valve and kink combination mouth is all very little, the so big heat loss that reduces valve. Insulation material adopts rock wool or alumina silicate (select alumina silicate when temperature is higher, select rock wool to get final product when temperature is low) in addition, and it is little to make it have a capacity, thermal conductivity factor is low, and is high temperature resistant, noninflammability, the advantages such as anticorrosive, sound absorption are compared with perlite and can be saved energy 23.4%.

3, long service life.The utility model and existing insulating structure specific strength obviously improve, and durability is good, and the dismounting back is reusable.

4, beautiful shape.The utility model outward appearance shape such as threeway, svelteness, structure is well-balanced, and is neat and artistic.

5, has development prospect.The utility model is a kind of novel product in China heat insulating work field, can be widely used in oil, chemical industry and other field of thermal insulation, is big promising product.

Claims

1, a kind of loop type valve insulation cover, it is characterized in that its peripheral hardware typing iron sheet outer casing (1), in be with thermal insulation film (2), typing iron sheet outer casing (1) is to be made of two 1 pair of assembly parts butt joints that connects with the saddle form, by along the set fixation clamp (3) of its typing iron sheet outer casing (1) it being combined into the loop type structure.

2, loop type valve insulation cover according to claim 1 is characterized in that described thermal insulation film (2) is the Prefabricated block combination butt joint formation with the thermal insulating material making of two symplex structures.