The plate type heat exchanger sealing joint strip that has annex
Technical field
The plate type heat exchanger sealing joint strip that has annex described in the utility model relates to a kind of sealing adhesive tape.
Background technology
At present institute uses to such an extent that plate type heat exchanger is by many corrugated heat transferring plates, makes by sealing joint strip to keep certain clearance between the plate, compresses dismountable heat transmission equipment of plate composition with the clamping double-screw bolt.The passage of fluid foot relies on adhesive tape sealing between the plate, we can say that the overall performance of adhesive tape is good more, and the whole bearing capacity of equipment is strong more, and the safety coefficient during work is high more, and the occasion that is suitable for is extensive more.
At present, be to rely on plane contact very narrow under adhesive tape and last the plate groove to reach the effect of sealing between the plate, adhesive tape is placed in the adhesive tape groove, the degree of depth of adhesive tape groove is less than the thickness of adhesive tape, plate is suspended between the lower guide rod, spacing degree between the plate depends primarily on the machining accuracy of lower guide rod.Change in the running in plate clamping and plate, the front and back plate is because discontinuity is easy to take place the changing of the relative positions, when this thing happens, can cause then that gently outward appearance is uneven, not attractive in appearance, can make adhesive tape depart from correct contact-making surface under the serious situation, lose the effect of sealing, thereby cause the global failure of equipment.
In order to address the above problem, usually to consume more man power and material, guarantee guide rod higher relatively precision in process, the process of assembling also is difficult for too fast, had a strong impact on production efficiency, so invent a kind of easy for installation, the changing of the relative positions be difficult for to take place, and the adhesive tape that can reduce whole cost has been put on technical staff's research schedule.At existing problem in the above-mentioned prior art, a kind of novel plate type heat exchanger sealing joint strip that has annex of research and design, existing problem is very necessary in the prior art thereby overcome.
Summary of the invention
In view of existing problem in the above-mentioned prior art, the purpose of this utility model is a kind of novel plate type heat exchanger sealing joint strip that has annex of research and design, utilizes annex and plate groove to make plate spacing mutually, makes the fixing reinforcement of adhesive tape.Thereby solve in the plate type heat exchanger assembling process, because the front and back plate discontinuity generation changing of the relative positions, can cause then that gently outward appearance is uneven, not attractive in appearance, can make adhesive tape depart from correct contact-making surface under the serious situation, lose the effect of sealing, thereby cause the global failure of equipment, had a strong impact on problems such as production efficiency.
The plate type heat exchanger sealing joint strip that has annex described in the utility model is made up of adhesive tape and annex.The profile of described adhesive tape main body is long strip type, and its cross section is trapezoidal, and the angle α of side and bottom surface is usually between 70 °~74 °.When α equals 72 °, the sealing effectiveness the best between adhesive tape and the plate groove.The profile of described annex is an ellipticity, and length is 1-5 centimetre, and separate with adhesive tape on its top, and the bottom is connected with adhesive tape.Annex is connected the side of adhesive tape, and adhesive tape and annex are one-body molded, and the cross section on annex top is trapezoidal, the side and vertically normal direction angle β usually between 28 °~32 °, when β equals 30 °, the sealing effectiveness the best between adhesive tape and the last slice plate.At the lower surface of adhesive tape annex the projection of two semicircle shapes is arranged, its effect is the fixedly reinforcement that can make adhesive tape.The attachment design of whole adhesive tape is the center X-axis asymmetric arrangement along the adhesive tape length direction, and along the Y-axis symmetric arrangement, the distance between two annexes is at 10-30 centimetre.
The material that adhesive tape described in the utility model and annex are commonly used has acrylonitrile-butadiene rubber, ethylene propylene diene rubber and fluorubber.
The plate type heat exchanger sealing joint strip that has annex described in the utility model, it comprises the adhesive tape main body and is connected adhesive tape main body annex all around.The adhesive tape annex is connected the side of adhesive tape main body, and near plate outer rim one side, adhesive tape main body and annex are one-body molded.The specification of adhesive tape has a variety of, because of specifically template is different.The plate type heat exchanger sealing joint strip that has annex described in the utility model, be that an adhesive tape and plate are fixed together and form a plate groups, the adhesive tape main body is placed in the adhesive tape groove, the adhesive tape annex is placed in the groove of opening plate, to prevent the adhesive tape play, a plate groups is through level 180 degree rotations, be placed on the plate groups of not rotation, band adhesive tape accessory position staggers mutually on the adjacent plate group, then with the length of fishbolt with plate groups, be clamped in the theoretical interval, between adjacent plate, just formed the sealed fluid flow passage like this.
From the plate type heat exchanger sealing joint strip that has annex described in the utility model, the position of band adhesive tape annex is chosen 2 vertical profiles and (is seen accompanying drawing 4 on the plate groups of its plate type heat exchanger, 5), right side, A plate group N body position is wrapped up by V plate group annex M body projection in Fig. 4 as can be seen, right side, V plate group N body position is by A plate group annex M body projection parcel in Fig. 5, V plate group adhesive tape is subjected to not only that groove limits below this film plate, annex M body is limited by a plate, adhesive tape annex and plate groove make plate groups spacing mutually, make adhesive tape when being squeezed, be difficult for breaking away from the adhesive tape groove more, make the fixedly reinforcement of adhesive tape, be difficult for taking place the changing of the relative positions.Beneficial effect described in the utility model is: this product can make between the plate groups spacing mutually, make the fixedly reinforcement of adhesive tape itself, avoided plate changing of the relative positions up and down in clamping process, thereby make plate change neat, the difficult leakage of outward appearance, whole bearing capacity strengthens, safety coefficient increases, and the occasion that is suitable for is extensive more.Required precision to last lower guide rod has simultaneously also reduced, and is convenient to processing and manufacturing, make assembling process save time more, laborsaving, reduced the manufacturing cost that plate changes.
Description of drawings
The utility model has five accompanying drawings, in the tool:
Fig. 1 is the plate type heat exchanger sealing joint strip structural representation that has annex;
Fig. 2 is an adhesive tape main body section structural representation;
Fig. 3 is that the adhesive tape main body is connected the cross section structure schematic diagram with annex;
Fig. 4 is adhesive tape and plate assembling sectional view;
Fig. 5 is adhesive tape and plate assembling sectional view.
Among the figure: 1, adhesive tape 2, annex.
The specific embodiment
Specific embodiment of the utility model as shown in drawings, accompanying drawing 1 is depicted as the plate type heat exchanger sealing joint strip that has annex described in the utility model, is made up of adhesive tape 1 and annex 2.The profile of described adhesive tape 1 main body is long strip type, and its cross section is trapezoidal, and as shown in Figure 2, the angle α of side and bottom surface is 72 °.The profile of described annex 2 is an ellipticity, and length is 3.7 centimetres, and separate with adhesive tape 1 on its top, and the bottom is connected with adhesive tape 1.Annex 2 is connected the side of adhesive tape 1, and adhesive tape 1 is one-body molded with annex 2, cutting of annex 2 tops and be trapezoidal, as shown in Figure 3, the side is 30 ° with vertical normal direction angle β, at the lower surface of adhesive tape annex the projection of two semicircle shapes is arranged, and its effect is the fixedly reinforcement that can make adhesive tape.The annex 2 of whole adhesive tape 1 is designed to the center X-axis asymmetric arrangement along adhesive tape 1 length direction, and along the Y-axis symmetric arrangement, the distance between two annexes 2 is 13 centimetres.
Adhesive tape 1 described in the utility model and annex 2 materials commonly used have in acrylonitrile-butadiene rubber, the ternary second three kinds of rubber and fluorubber, and acrylonitrile-butadiene rubber is applicable to media such as the water of temperature between-20 ℃~110 ℃, seawater, mineral oil, salt solution.Ethylene propylene diene rubber is applicable to media such as the water of temperature between-50 ℃~150 ℃, steam, acid, alkali.Fluorubber is applicable to media such as the water of temperature between-35 ℃~180 ℃, steam, acid, alkali.Can get use occasion according to difference and select the different materials that get for use.