CN217403248U

CN217403248U - Clamping and pressing type connecting structure for stainless steel heat exchange tube of cooling tower

Info

Publication number: CN217403248U
Application number: CN202220943013.2U
Authority: CN
Inventors: 胡乃超; 马延勇
Original assignee: Dalian Junyuan Metal Products Co ltd
Current assignee: Dalian Junyuan Metal Products Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-09
Anticipated expiration: 2032-04-22

Abstract

The utility model relates to a water pipe heat transfer system technical field just discloses cooling tower stainless steel heat exchange tube card pressure formula connection structure, press including the card and keep silent, heat exchange tube and connecting pipe, the card is pressed and is provided with the card in keeping silent and presses grinding apparatus, and the card is pressed and is kept silent and press the grinding apparatus to press heat exchange tube and connecting pipe card through the card and press fixedly. According to the clamping and pressing type connecting structure of the stainless steel heat exchange tube of the cooling tower, the sealing ring and the sealing gasket are made of ethylene propylene diene monomer rubber and silicon rubber respectively, so that the structure is good in sanitation and environmental protection performance and long in service life. The utility model discloses a mode of card pressing tongs is connected, and card pressing formula joint strength is high, and the vibration resistance is good, will connect the position and once only do "die", has avoided the not hard up possibility of junction, the utility model discloses compare the conventional art and pass through welding mode, avoid field weld, mantle fiber or rolling groove operation, as long as adopt the hydraulic means of specialty, the card is pressed and is connected can easily to be accomplished, saves time, laborsaving, the expense of saving, and one time installation is installed power height moreover.

Description

Clamping and pressing type connecting structure for stainless steel heat exchange tube of cooling tower

Technical Field

The utility model relates to a water pipe heat transfer system technical field especially relates to cooling tower stainless steel heat exchange tube card pressure formula connection structure.

Background

At present, in a commercial industrial cooling tower of a domestic well-known manufacturer, a water medium heat exchange pipeline mainly adopts a copper pipe and a stainless steel pipe, the heat exchange efficiency of the copper pipe is very high, but the raw material is expensive and belongs to noble metal, and brazing is adopted in a condensation mode. Stainless steel tubes are relatively low in cost, but are weaker than copper tubes in heat exchange performance. The stainless steel products have high processing difficulty, and the connection mode mainly adopts argon arc welding. Both of these bonding methods oxidize the material at high temperatures. If the acid cleaning treatment is carried out, the method is not environment-friendly and has high labor cost. In order to solve the problems of high cost and environmental pollution, the national carbon standard call is responded. The cooling tower pipeline connection is developed and a clamping and pressing connection mode is used.

For stainless steel products, argon arc welding has high labor cost and is not environment-friendly, the wall thickness is too thin and is not beneficial to welding, and the clamping and pressing connection is excellent, so that the problems are solved. The copper pipe is easy to process and weld, so that stainless steel is difficult to replace, and the clamping and pressing connection is excellent, so that the problems are solved.

The stainless steel clamping and pressing connection mode replaces a copper pipe and stainless steel argon arc welding, so that the purposes of energy saving and cost reduction are finally achieved, the carbon is low, the environment is protected, and the customer requirements are met. Therefore, a clamping and pressing type connecting structure of the stainless steel heat exchange tube of the cooling tower is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide cooling tower stainless steel heat exchange tube card pressure formula connection structure.

In order to realize the purpose, the utility model adopts the following technical proposal that the stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower comprises a clamping and pressing jaw, heat exchange tube and connecting pipe, the card is pressed and is provided with the card and presses grinding apparatus in keeping silent, the card is pressed and is kept silent and press heat exchange tube and connecting pipe card through the card and press grinding apparatus and fix, the material of heat exchange tube and connecting pipe is 304 stainless steel material, the heat exchange tube includes arc tip and indent subtotal link part and constitutes, the arc tip divide into the U font, the indent subtotal is the annular state of indent, indent subtotal fixed mounting is on two free ends of arc tip, link end portion is connected with the free end of indent subtotal, it presses the arch to be provided with annular card on the link end portion, the draw-in groove that corresponds with card pressure protruding position is seted up to the inner wall of link end portion, the connecting pipe sets up in link end portion, the block has the sealing washer in the draw-in groove intracavity.

Preferably, a connecting ring is fixedly mounted at the inner wall of the inner concave end part and at a position close to the inner end of the connecting pipe, the connecting ring is integrally formed with the arc-shaped end part, the inner concave end part and the connecting end part, and a connecting groove is formed in the end face of the inner end of the connecting pipe.

Preferably, the inner wall of the connecting ring is fixedly provided with an annular gasket.

Preferably, a sealing groove is formed in the annular outer wall, close to the connecting pipe, of the gasket.

Preferably, the annular outer wall of one side of the sealing ring far away from the connecting pipe is in an arc-shaped protruding state, and a sealing gasket is fixedly arranged on the annular inner wall of the sealing ring.

Preferably, the inner wall of the sealing gasket is fixedly provided with uniformly distributed sealing bulges, the sealing bulges are in an arc-shaped bulge state, the outer wall of the connecting pipe is provided with uniformly distributed limiting grooves, and the positions of the limiting grooves correspond to the positions of the clamping grooves and the sealing gasket.

Advantageous effects

The utility model provides a cooling tower stainless steel heat exchange tube card pressure formula connection structure. The method has the following beneficial effects:

(1) according to the clamping and pressing type connecting structure of the stainless steel heat exchange tube of the cooling tower, the sealing ring and the sealing gasket are made of ethylene propylene diene monomer rubber and silicon rubber respectively, so that the cooling tower is good in sanitation and environmental protection performance and long in service life. The utility model discloses a mode of card pressing tongs is connected, and card pressing formula joint strength is high, and the vibration resistance is good, will connect the position and once only do "die", has avoided the not hard up possibility of junction, the utility model discloses compare the conventional art and pass through welding mode, avoid field weld, mantle fiber or rolling groove operation, as long as adopt the hydraulic means of specialty, the card is pressed and is connected can easily to be accomplished, saves time, laborsaving, the expense of saving, and one time installation is installed power height moreover.

(2) This cooling tower stainless steel heat exchange tube card pressure formula connection structure, when the heat exchange tube was connected with the connecting pipe, in inserting the inner of connecting pipe connecting part, then in the go-between inserted the spread groove, the connecting pipe was rotated again this moment, had guaranteed the utility model discloses intensity and stability that the heat exchange tube is connected.

(3) This cooling tower stainless steel heat exchange tube card pressure formula connection structure, when the go-between inserted in the spread groove, made the inner wall of connecting pipe insert the seal groove this moment in, the gasket then played further sealed effect of assurance, the gasket then sealed the inboard junction of connecting pipe, thereby guaranteed the utility model discloses the effect that the heat exchange tube is connected.

(4) This cooling tower stainless steel heat exchange tube card pressure formula connection structure presses the pincers to the card through the card and presses the protruding extrusion of pressing of keeping silent for the card presses protruding deformation and toward central point to put the department extrusion, makes the sealing washer warp then the sealing washer fills up the draw-in groove and is full of, and the spacing inslot is gone into to sealed protruding this moment extrusion, has then guaranteed under the effect of pressure that sealed protruding can firmly extrude random spacing inslot, thereby further assurance the utility model discloses heat exchange tube card presses the stability and the sealed effect of connecting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, proportion, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and the modification of any structure, the change of proportion relation or the adjustment of size all fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the purpose which can be achieved by the present invention.

Fig. 1 is a schematic view of an embodiment of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a third embodiment of the present invention;

fig. 4 is an enlarged view of the point B in fig. 3 according to the present invention.

Illustration of the drawings:

10. an arcuate end portion; 12. a concave end portion; 13. a connecting end portion; 14. a connecting pipe; 15. a gasket; 16. connecting grooves; 18. a connecting ring; 20. a sealing groove; 21. clamping and pressing the bulge; 22. a card slot; 23. a seal ring; 24. a gasket; 25. sealing the protrusion; 26. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows: a stainless steel heat exchange tube clamping and pressing type connecting structure of a cooling tower is shown in figure 1 and comprises a clamping and pressing jaw, the heat exchange tube and the connecting tube 14 are arranged in the clamping pressure jaw, the clamping pressure jaw clamps and fixes the heat exchange tube and the connecting tube 14 through the clamping pressure grinding tool, the heat exchange tube and the connecting tube 14 are made of 304 or 316 stainless steel materials, the heat exchange tube comprises an arc-shaped end part 10, a concave end part 12 and a connecting end part 13, the arc-shaped end part 10 is U-shaped, the concave end part 12 is in a concave annular state, the concave end part 12 is fixedly installed on two free ends of the arc-shaped end part 10, the connecting end part 13 is connected with the free ends of the concave end part 12, an annular clamping pressure bulge 21 is arranged on the connecting end part 13, a clamping groove 22 corresponding to the clamping pressure bulge 21 is formed in the inner wall of the connecting end part 13, and the connecting tube 14 is arranged in the connecting end part 13.

Example two: on the basis of the first embodiment, as shown in fig. 2, a sealing ring 23 is clamped in the cavity of the clamping groove 22, an annular outer wall of one side, away from the connecting pipe 14, of the sealing ring 23 is in an arc-shaped protruding state, a sealing gasket 24 is fixedly mounted on an annular inner wall of the sealing ring 23, the sealing ring 23 and the sealing gasket 24 are made of ethylene propylene diene monomer and silicon rubber respectively, sealing protrusions 25 which are uniformly distributed are fixedly mounted on an inner wall of the sealing gasket 24, the sealing protrusions 25 are in an arc-shaped protruding state, a uniformly distributed limiting groove 26 is formed in the outer wall of the connecting pipe 14, and the position of the limiting groove 26 corresponds to the positions of the clamping groove 22 and the sealing gasket 24.

Example three: on the basis of the first and second embodiments, as shown in fig. 3 and 4, a connection ring 18 is fixedly mounted at an inner wall of the concave end portion 12 and near an inner end of the connection pipe 14, the connection ring 18 is integrally formed with the arc end portion 10, the concave end portion 12 and the connection end portion 13, a connection groove 16 is formed on an inner end surface of the connection pipe 14, an annular gasket 15 is further fixedly mounted on the inner wall of the connection ring 18, and a sealing groove 20 is formed on an annular outer wall of the gasket 15 near the connection pipe 14.

When the heat exchange tube was connected with connecting pipe 14, in inserting connecting end portion 13 with the inner of connecting pipe 14, go-between 18 inserted in spread groove 16, rotated connecting pipe 14 this moment again, had guaranteed the utility model discloses intensity and stability that the heat exchange tube is connected.

When the go-between 18 inserts in the spread groove 16, make the inner wall of connecting pipe 14 insert in seal groove 20 this moment, gasket 15 has then played the sealed effect of further assurance, and gasket 15 then seals the inboard junction of connecting pipe 14, thereby has guaranteed the utility model discloses the effect that the heat exchange tube is connected.

The clamping pressure jaw is internally provided with a clamping pressure grinding tool, the clamping pressure jaw is clamped and pressed at the clamping pressure bulge 21 through the clamping pressure grinding tool, and meanwhile, the clamping pressure grinding tool can extrude the wall surface of the connecting end part 13 positioned at two sides of the clamping pressure bulge 21, so that the mechanical fixing effect is improved. Protruding 21 of card pressure simultaneously warp and toward central point and put the department's extrusion for sealing washer 23 warp then sealing washer 23 fills up the draw-in groove 22 and is full of, and sealed protruding 25 is crowded into spacing groove 26 this moment, has then guaranteed under the effect of pressure that sealed protruding 25 can firmly extrude random spacing groove 26 in, thereby further assurance the utility model discloses heat exchange tube card presses the stability and the sealed effect of connecting.

The utility model discloses a material of heat exchange tube and connecting pipe 14 is for adopting 304 or 316 stainless steel material, and stainless steel material is a healthy material, can reach the sanitary standard that the country drink water, and can 100% recycle of arc tip, and sealing washer 23 and the material of sealed pad 24 adopt ethylene propylene diene monomer and silicon rubber to make respectively, therefore sanitary environmental protection performance is good, long service life moreover. The utility model discloses a mode of card pressure pincers is connected, and card pressure formula joint strength is high, and the vibration resistance is good, will connect the position and once only do "die", has avoided the not hard up possibility of junction, the utility model discloses compare the conventional art and pass through the welding mode, avoid field weld, mantle fiber or rolling groove operation, as long as adopt the hydraulic means of specialty, the card is pressed and is connected and can easily accomplish, saves time, laborsaving, economizes the expense, and one-time installation becomes power high moreover, the internal diameter of link part 13 is the same with the internal diameter of connecting pipe 14 (the design of equalling a footpath), and card pressure position tubular product warp for a short time, makes pipe connection department flow and loss of pressure very little, can neglect. The clamp-press type pipe fitting has complete specification and variety, can be matched with various valves, water nozzles, water meters, water pumps and the like, and can be connected with various existing pipeline systems.

The clamping and pressing type stainless steel heat exchange pipe system is attractive in appearance, can be arranged in an exposed mode to improve the decorative effect, can be arranged in a concealed mode, and meets the embedded installation technical requirements of a CECS gasket 153-sealing groove 2003 'engineering technical specification for building water supply thin-wall stainless steel pipelines'. The utility model discloses can also realize exempting from to update the maintenance, economic performance is superior, can realize 50 years-70 years's life design and high reliability design, in the building life, need not almost update the maintenance to pipe-line system, practiced thrift use cost in a large number, reduce various losses to the limit. The utility model discloses still have stronger commonality, be applicable to civilian low pressure liquid such as hot and cold water, straight drinking water, heating, air conditioner, fire control, gas and carry, also can be used to the low pressure fluid transport of trades such as medicine, beverage, food, chemical industry.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Cooling tower stainless steel heat exchange tube card pressure formula connection structure keeps silent, heat exchange tube and connecting pipe (14) including the card pressure, and the card is pressed and is provided with the card in keeping silent and presses the grinding apparatus, and the card is pressed and is kept silent and press heat exchange tube and connecting pipe (14) card through the card and press the grinding apparatus to fix, and the material of heat exchange tube and connecting pipe (14) is 304 stainless steel materials, its characterized in that: the heat exchange tube comprises an arc-shaped end part (10), an inner concave end part (12) and a connecting end part (13), the arc-shaped end part (10) is U-shaped, the inner concave end part (12) is in an inner concave annular state, the inner concave end part (12) is fixedly installed on two free ends of the arc-shaped end part (10), the connecting end part (13) is connected with the free ends of the inner concave end part (12), an annular clamping and pressing bulge (21) is arranged on the connecting end part (13), a clamping groove (22) corresponding to the clamping and pressing bulge (21) is formed in the inner wall of the connecting end part (13), the connecting pipe (14) is arranged in the connecting end part (13), and a sealing ring (23) is clamped in the cavity of the clamping groove (22).

2. The stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower as claimed in claim 1, wherein: the inner wall of the inner concave end part (12) and the inner end position close to the connecting pipe (14) are fixedly provided with a connecting ring (18), the arc-shaped end part (10), the inner concave end part (12) and the connecting end part (13) are integrally formed, and the inner end face of the connecting pipe (14) is provided with a connecting groove (16).

3. The stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower as claimed in claim 2, wherein: the inner wall of the connecting ring (18) is also fixedly provided with an annular gasket (15).

4. The stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower as claimed in claim 3, wherein: and a sealing groove (20) is formed in the annular outer wall, close to the connecting pipe (14), of the gasket (15).

5. The stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower as claimed in claim 1, wherein: the annular outer wall of one side of the sealing ring (23) far away from the connecting pipe (14) is in an arc-shaped protruding state, and a sealing gasket (24) is fixedly mounted on the annular inner wall of the sealing ring (23).

6. The stainless steel heat exchange tube clamping and pressing type connecting structure of the cooling tower as claimed in claim 5, wherein: the inner wall fixed mounting that seals up (24) has evenly distributed's sealed protruding (25), and sealed protruding (25) are the bellied state of arc, and evenly distributed's spacing groove (26) are seted up to the outer wall of connecting pipe (14), and the position of spacing groove (26) corresponds with the position of draw-in groove (22) and sealed pad (24).