CN201413074Y - Plate Heat Exchanger Plate with New Sealing Groove Structure - Google Patents

Abstract

The utility model relates to a plate heat exchanger plate with a novel sealing groove structure, which relates to a plate heat exchanger. The plate is composed of positioning holes, corner holes, diversion areas, corrugated areas and sealing grooves. The sealing groove is located around the plate, and has an inverted trapezoidal cross-section. Along the length of the sealing groove, a group of semicircular grooves are arranged at intervals of 50 to 300 mm. Each group of grooves is composed of two semicircular grooves. The distance between the grooves of the same group is between 8mm and 50mm, the radius of the semicircular groove is between 3mm and 12mm, and the depth of the groove is between 2mm and 10mm. The utility model utilizes the special structure of the plate groove, so that the sealing rubber strip is not easy to move in series, and the fixing between the sealing rubber strip and the plate is strengthened, the plate groups are mutually limited, and the efficiency of the plate heat exchanger is improved. Overall pressure bearing capacity and service life.

Description

Plate Heat Exchanger Plate with New Sealing Groove Structure

technical field

The plate heat exchanger plate with a novel sealing groove structure described in the utility model relates to a plate heat exchanger.

Background technique

At present, the plate heat exchanger is an indispensable equipment in the process of industrial heat transfer. It is widely used in chemical industry, petroleum, steel, automobile, food, light industry and other industrial fields. At the same time, it is also an important part of air conditioning and heating. , it is also the key equipment in waste heat utilization, solar energy utilization, sewage utilization, seawater utilization, and geothermal utilization.

With the rapid development of my country's petrochemical, steel and other industries, the demand for heat exchangers has risen sharply, especially for heat exchangers of special specifications with large processing capacity and large single plate area. Few domestic manufacturers can design and produce them, and the huge supply The gap needs to be filled by imports.

The main failure mode of plate heat exchanger under normal working conditions is seal failure. Through the analysis of the rigidity of the plate and the sealing structure of the plate, including the sealing groove of the plate and the sealing gasket, it is found that increasing the stiffness of the plate can improve the overall pressure bearing capacity of the plate heat exchanger; a reasonable design of the sealing groove structure can Effectively improve the stability of the sealing rubber strip in the sealing groove and the reliability of sealing.

The bottom surface and both sides of the existing plate sealing groove are flat, and the upper opening is large, and the lower bottom is small. The positioning between the rubber strip and the plate groove can only rely on the mountain-shaped hooks hanging around the plate and on the corner holes. , because the rubber strip is made of elastic material, and there is still a distance between the hook and the plate groove, the positioning effect of the rubber strip is not very good, which may easily lead to leakage of the heat exchanger. A heat exchanger with a large single-plate heat exchange area has a long plate sealing perimeter. If the sealing effect is not good, the heat exchanger is more likely to leak.

In view of the above-mentioned problems in the prior art, it is very necessary to study and design a plate heat exchanger plate with a new sealing groove structure, so as to overcome the problems in the prior art.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the purpose of this utility model is to overcome the deficiencies of the prior art, research and design a device with simple structure, convenient assembly, which can strengthen the fixing of rubber strips and enhance the overall pressure bearing capacity of the equipment. A plate heat exchanger plate with a new sealed groove structure. Thereby, it is solved that the positioning effect of the rubber strip is not good, and it is easy to cause the heat exchanger to leak. For a heat exchanger with a large single-plate heat exchange area, the plate sealing perimeter is long, the rubber strip is easy to move, the sealing effect is not good, and the heat exchanger is easy to leak and other problems.

A new seal groove plate described in the utility model is composed of a positioning hole, a corner hole, a diversion area, a corrugated area and a seal groove; it is characterized in that the seal groove is located around the plate, and the cross section is inverted Trapezoidal, with a set of semicircular grooves at intervals of 50-300mm along the length of the sealing groove. Each set of grooves is composed of two semicircular grooves. The radius of the groove is between 3 and 12mm, and the depth of the groove is between 2 and 10mm. Seen from the other side of the plate, the semicircular groove becomes two semicircular protrusions. The bar plays the role of limit fixation.

The technical solution adopted by the utility model to solve the technical problem is: use the special structure of the plate sealing groove to make the sealing rubber strip not easy to move in series, strengthen the fixing between the sealing rubber strip and the plate, and make the gap between the plate group Limit each other, so that the overall pressure bearing capacity of the equipment is enhanced.

Using this utility model, our factory has developed plate heat exchangers with single-plate heat exchange areas of 1.45 square meters and 2.0 square meters respectively. Not only the single-plate area reaches the domestic first-class standard, but the maximum installed area can reach more than 2000 square meters. Unique assembly The structure and special angle hole and plate width ratio control, as well as the special fluid distribution method and reinforced sealing groove structure make the product reach the first-class domestic and even international level in terms of heat transfer performance and product safety, which is a great contribution to the localization of equipment and the reduction of Business costs paved the way.

The 1.45-square-meter plate heat exchanger has a plate length of 1913mm and a width of 1160mm. The plate is designed with DN400mm flow channel holes and a corrugation depth of 3.7mm. The maximum installed area can reach 2000 square meters.

The 2.0-square-meter plate heat exchanger has a plate length of 2402mm and a width of 1250mm. The plate is designed with a DN500mm flow channel hole and a corrugation depth of 3.7mm. The maximum installed area can reach 2000 square meters.

The beneficial effect of the utility model is: the special structure of the sealing groove is used to strengthen the stability between the rubber strip and the plate, and improve the overall pressure bearing capacity and service life of the plate heat exchanger.

Description of drawings

The utility model has two accompanying drawings, wherein:

Figure 1 is a schematic diagram of the plate structure of a plate heat exchanger with a new seal groove structure;

Fig. 2 is a partially enlarged view of a plate M of a plate heat exchanger with a novel sealing groove structure.

In the figure: 1. Positioning hole 2. Corner hole 3. Diversion area 4. Corrugated area 5. Sealing groove.

Detailed ways

The specific implementation of the utility model is shown in the accompanying drawings. The accompanying drawing 1 is a schematic diagram of the plate heat exchanger plate structure with a new sealing groove structure. The plate is composed of positioning holes 1, corner holes 2, diversion areas 3, The corrugated area 4 and the sealing groove 5 are composed. The sealing groove 5 is located around the plate, and its cross-section is inverted trapezoidal. Different types of plates have different sizes of the semicircular grooves set in the sealing groove 5 . For example, the plate of HD200 is usually made of stainless steel plate with a thickness of 0.6mm. There are a set of semicircular grooves at intervals of 133mm along the length of the sealing groove. Each set of grooves is composed of two semicircular grooves. The distance between the two grooves is between 11mm, the radius of the semicircular groove is between 6mm, and the depth of the groove is 3.7mm.

Claims (1)

1, a kind of plate type heat exchanger plate with novel seal groove structure is made up of locating hole (1), hole, angle (2), water conservancy diversion district (3), corrugated regions (4) and seal groove (5); It is characterized in that described seal groove (5) be positioned at plate around, it is trapezoidal that the cross section is, move towards to be equipped with between every interval 50～300mm one group of semicircle shape groove along seal groove (5) length, every group of groove is made up of two semicircle shape grooves, same group flute pitch is between 8～50mm, the radius of semicircle shape groove is between 3～12mm, and the degree of depth of groove is between 2～10mm.

Images