阅读说明：本技术 一种板式换热器的换热板 (Heat exchange plate of plate heat exchanger ) 是由 *** 于 2019-09-19 设计创作，主要内容包括：本发明涉及热交换器技术领域,且公开了一种板式换热器的换热板,包括换热板,所述换热板的四角分别开设有通水孔,所述换热板的正面和背面分别开设有垫片槽,所述垫片槽内部的两侧固定连接有限位块,该板式换热器的换热板,将波纹条设置成Z形状,使得两块换热板相对面所组成的薄流体通道也呈Z形状,并且通过将换热区域的两侧除进出水的宽度外均通过密封垫片进行密封处理,当水进入薄流体通道内时,通过Z形状可以使得进入流体通道的水增加在换热区域的流动时间,并且基本流经换热区域的整个平面,使得液体可以充分的进行热量传递,提高换热效果,从而满足一次性的换热性能,降低后续二次换热的概率,从而控制换热成本。(The invention relates to the technical field of heat exchangers and discloses a heat exchange plate of a plate heat exchanger, which comprises heat exchange plates, wherein four corners of each heat exchange plate are respectively provided with a water through hole, the front and the back of each heat exchange plate are respectively provided with a gasket groove, two sides inside each gasket groove are fixedly connected with a limiting block, each heat exchange plate of the plate heat exchanger is provided with a Z-shaped corrugated strip, so that a thin fluid channel formed by the opposite surfaces of the two heat exchange plates is also in a Z shape, and the two sides of a heat exchange area except the width of water inlet and outlet are sealed by a sealing gasket, when water enters the thin fluid channel, the flow time of the water entering the fluid channel can be increased in the heat exchange area through the Z shape, and the water basically flows through the whole plane of the heat exchange area, so that the liquid can fully transfer heat, the heat exchange effect is improved, and the disposable heat exchange performance is met, the probability of subsequent secondary heat exchange is reduced, and therefore the heat exchange cost is controlled.)

1. A heat exchanger plate of a plate heat exchanger, comprising a heat exchanger plate (1), characterized in that: limbers (2) have been seted up respectively in the four corners of heat transfer board (1), gasket groove (3) have been seted up respectively to the front and the back of heat transfer board (1), gasket groove (3) inside both sides fixedly connected with stopper (4), gasket groove (3) inside swing joint has seal gasket (5), spacing groove (6) have been seted up respectively to the both sides of seal gasket (5), the front and the back of heat transfer board (1) are fixed ripple strip (7) that are equipped with respectively, the middle part at heat transfer board (1) front ripple strip (7) top is seted up flutedly (8), the middle part of heat transfer board (1) back ripple strip (7) bottom is fixed and is equipped with lug (9).

2. A heat exchanger plate of a plate heat exchanger according to claim 1, characterized in that: the limiting block (4) is trapezoidal and a longer bottom edge is buckled with the limiting groove (6).

3. A heat exchanger plate of a plate heat exchanger according to claim 1, characterized in that: the cross sections of the grooves (8) and the bumps (9) are rectangular and the height of the grooves is smaller than that of the corrugated strips (7).

4. A heat exchanger plate of a plate heat exchanger according to claim 1, characterized in that: the path of the corrugated strip (7) is Z-shaped and substantially covers the heat exchange area on the heat exchange plate (1).

5. A heat exchanger plate of a plate heat exchanger according to claim 1, characterized in that: the width of a water inlet and a water outlet of a thin fluid channel formed by the corrugated strips (7) on the front heat exchange plate and the rear heat exchange plate (1) is about one third of the height of a heat exchange area of the heat exchange plates (1).

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a heat exchange plate of a plate heat exchanger.

Background

Plate heat exchanger is with a plurality of surfaces have a sheet metal pile efficient heat transfer device together of certain ripple, form thin fluid passage through the laminating of ripple between the adjacent slab, because calorific capacity of machine is very high in each industrial field, most all need microthermal liquid to cool down as the coolant liquid to the machine, guarantee that the machine can not be overheated, maintain the normal work of machine, so the present extensive each industrial field of being applied to of plate heat exchanger, but there are some defects all the time in current plate heat exchanger's heat transfer board:

1. the ripple of current heat exchanger roughly can be divided into the human style of calligraphy, three kinds of structures of straight wave type and ball-type, and the water inlet scope of the heat transfer passageway that current ripple structure constitutes is the horizontal total length of ripple structure, although ripple structure is covered with the heat transfer region of heat transfer board, but such an inflow is too big, and because big inflow can lead to the unit water yield to reduce at the heat transfer regional heat transfer time of heat transfer, thereby the regional heat transfer effect of the heat transfer board of water same flow through can reduce, thereby can not once only cool down to abundant liquid to needs refrigerated, if need improve the heat transfer effect, must increase the heat transfer number of times, must increase the heat transfer cost like this.

2. The existing plate heat exchanger is characterized in that two heat exchange plates are compressed, so that corrugated strips 7 on opposite surfaces of the two heat exchange plates are completely attached to form a thin fluid channel, heat exchange liquid is subjected to heat exchange by the heat exchange plates, most of fixing force between the traditional heat exchange plates is from an external fixed rod, the fixing force between the heat exchange plates is determined by the fixed position of a rear end plate on the fixed rod, and the working pressure of the heat exchanger can reach 1MPA generally, and under the working pressure, relative motion can occur between the heat exchange plates, on one hand, a sealing gasket 5 can be possibly partially separated from a gasket groove 3, so that the liquid leakage phenomenon of the heat exchanger can occur, on the other hand, once the relative motion occurs, the liquid in a heat exchange area can not normally circulate in the thin fluid channel formed by the corrugated strips 7, so that the heat exchanger is easy to break down, therefore, the heat exchanger needs to be stopped for maintenance, so that normal industrial production is influenced to a certain extent, and the stability of the heat exchanger is not high.

To this end, we propose a heat exchanger plate for a plate heat exchanger.

Disclosure of Invention

The invention provides a heat exchange plate of a plate heat exchanger, which has the advantages of good heat exchange effect and high working stability and solves the problems in the prior art.

The invention provides the following technical scheme: the utility model provides a heat transfer board of plate heat exchanger, includes the heat transfer board, the limbers has been seted up respectively in the four corners of heat transfer board, the gasket groove has been seted up respectively to the front and the back of heat transfer board, the both sides fixedly connected with stopper of gasket inslot portion, gasket inslot portion swing joint has seal gasket, the spacing groove has been seted up respectively to seal gasket's both sides, the front and the back of heat transfer board are fixed the ripple strip that is equipped with respectively, the middle part at heat transfer board front ripple strip top is seted up flutedly, the fixed lug that is equipped with in middle part of heat transfer board back ripple strip bottom.

Preferably, the limiting block is trapezoidal, and a longer bottom edge of the limiting block is buckled with the limiting groove.

Preferably, the cross-sectional shapes of the grooves and the bumps are both rectangular and the height of the grooves and the bumps is smaller than that of the corrugated strips.

Preferably, the path of the corrugated strip is Z-shaped and substantially covers the heat exchange area on the heat exchange plate.

Preferably, the width of the water inlet and the water outlet of the thin fluid channel formed by the corrugated strips on the front heat exchange plate and the rear heat exchange plate is about one third of the height of the heat exchange area of the heat exchange plates.

The invention has the following beneficial effects:

1. this plate heat exchanger's heat transfer board, set the ripple strip into the Z shape, make the thin fluid passage that two heat transfer board opposite faces are constituteed also be the Z shape, and all seal the processing through the both sides with the heat transfer region except the width of business turn over water, when water gets into in the thin fluid passage, can make the water that gets into fluid passage increase in the regional flow time of heat transfer through the Z shape, and basically flow through the regional whole plane of heat transfer, make the heat transfer that carries on that liquid can be abundant, improve the heat transfer effect, thereby satisfy disposable heat transfer performance, reduce follow-up secondary heat transfer's probability, thereby control the heat transfer cost.

2. The heat exchange plate of the plate heat exchanger is characterized in that a groove is formed in the corrugated strip on one side of the heat exchange plate, a lug is arranged on the corrugated strip on the other side of the heat exchange plate, the lug is completely embedded into the groove in the fastening process, so that the fixation between the previous heat exchange plate and the next heat exchange plate is realized not only through external pressure, but also through the nesting relation between the groove and the lug inside to strengthen the relative fixation relation between the adjacent heat exchange plates, meanwhile, a limit block is arranged inside a gasket groove, limit grooves with the same shape as the limit block are arranged on two sides of a sealing gasket, the sealing gasket is embedded into the gasket groove, so that the limit block and the limit grooves are completely embedded, the firm nesting of the gasket groove and the sealing gasket is ensured, and the mutual nesting relation between the corrugated strips is combined, and the machine can be more firmly fixed together under high working pressure, the stability of the machine is improved.

Drawings

FIG. 1 is a schematic view of a heat exchange plate sealing gasket installed in a prior art according to the present invention;

FIG. 2 is a schematic view of the installation of a heat exchange plate sealing gasket according to the structure of the present invention;

FIG. 3 is a schematic diagram of the nesting and fixing of the structural corrugated strips of the present invention;

fig. 4 is a schematic view of the sealing connection structure of the present invention.

In the figure: 1. a heat exchange plate; 2. a water through hole; 3. a gasket groove; 4. a limiting block; 5. sealing gaskets; 6. a limiting groove; 7. a corrugated strip; 8. a groove; 9. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a heat exchange plate of a plate heat exchanger includes a heat exchange plate 1, four corners of the heat exchange plate 1 are respectively provided with water through holes 2, front and back surfaces of the heat exchange plate 1 are respectively provided with gasket grooves 3, two sides of the inside of the gasket grooves 3 are fixedly connected with limit blocks 4, the inside of the gasket grooves 3 is movably connected with a sealing gasket 5, two sides of the sealing gasket 5 are respectively provided with limit grooves 6, the front and back surfaces of the heat exchange plate 1 are respectively and fixedly provided with corrugated strips 7, the middle part of the top of the front corrugated strips 7 of the heat exchange plate 1 is provided with a groove 8, and the middle part of the bottom of the back corrugated strips 7 of the heat exchange plate 1.

Wherein, stopper 4's shape is trapezoidal and a longer base and is detained mutually with spacing groove 6, install through trapezoidal shape and the form of an inverse buckle, guarantee that can be fine after embedding seal gasket 5 in gasket groove 3 can guarantee through stopper 4 and spacing groove 6 buckle that seal gasket 5 can be firm nestification in gasket groove 3's inside, realized seal gasket 5's reliability of sealing under highly compressed operating condition, the condition emergence of weeping has been reduced to the machine, also can play the fixed action to two blocks of heat transfer plates 1 in front and back to a certain extent simultaneously, the stability of machine work has been promoted.

The cross-sectional shapes of the grooves 8 and the bumps 9 are both rectangular and are less than the height of the corrugated strips 7, when the heat exchange plate 1 is installed, after the heat exchange plates 1 are aligned and stacked, the heat exchange plates 1 are fixedly moved on the fixing rod through the rear end plate, so that the bumps 9 on the rear heat exchange plates 1 are embedded into the grooves 8 of the front heat exchange plates 1, when water flows through thin fluid channels formed by the corrugated strips 7 on the front heat exchange plates 1 and the rear heat exchange plates 1, due to the working condition of high pressure, the pressure of the rear end plate on the front heat exchange plates 1 and the pressure of the bumps 9 embedded and buckled in the grooves 8 are combined between the rear heat exchange plates 1 and the front heat exchange plates 1, the stability between the plates can be greatly improved, the situation that the front heat exchange plates 1 and the rear heat exchange plates 1 are subjected to relative displacement to cause liquid leakage can be.

Wherein, the path shape of ripple strip 7 is Z shape and has covered the heat transfer region on the heat transfer board 1 basically, can make the rivers that get into thin fluid passage can prolong its time of carrying out the heat exchange through the design of Z shape, and guaranteed that rivers can flow through the heat transfer region of heat transfer board 1 basically, through the heat-conduction of heat transfer board 1 like this, can make the water that gets into in the thin fluid passage can be abundant transmit the heat wherein after carrying out the primary cycle, avoid needing to carry out the secondary heat transfer owing to not reaching the heat transfer effect, effectual heat transfer effect and the control heat transfer cost of having promoted.

Wherein, the inlet outlet width of the thin fluid passage that ripple strip 7 constitutes on front and back heat transfer board 1 is about the third of heat transfer board 1 heat transfer regional height, compare traditional heat transfer board 1, although the width of inlet outlet reduces, but because the thin fluid passage design of Z shape, the total water yield that the heat transfer region of this heat transfer board 1 contained compares basically unchangeably with traditional heat transfer board 1, but makes that rivers can be abundant circulate the heat transfer on its surface through the route that changes rivers, thereby the heat transfer effect of single circulating water has been improved under the original water yield condition of assurance.

The working principle is that a sealing gasket 5 is pressed into a gasket groove 3, so that limiting blocks 4 on two sides of the inner wall of the gasket groove 3 are completely clamped by limiting grooves 6 formed in the sealing gasket 5, the sealing gasket 5 is respectively installed on the front surface of a heat exchange plate 1 according to the conditions shown in figures 1 and 2, the heat exchange plate 1 with the sealing gasket 5 installed is vertically fixed on a frame of a plate heat exchanger one by one through dovetail grooves on two sides, the heat exchange plate is compressed and reinforced through a fastening screw rod after being stacked, so that a lug 9 arranged on a back surface corrugated strip 7 of a previous heat exchange plate 1 can be completely embedded into a groove 8 formed in a front surface corrugated strip 7 of the next plate, high-temperature liquid generated in production is conveyed into the heat exchanger through a water through hole 2 on one side of the top part after being erected, and meanwhile, cooling liquid is conveyed into the heat exchanger through a water through hole 2 on one, high-temperature liquid enters a channel formed by the front surface of the heat exchange plate 1 and the corrugated strips 7 on the back surface of the previous heat exchange plate 1 through the limiting action of the sealing gasket 5, cooling liquid enters a channel formed by the back surface of the heat exchange plate 1 and the corrugated strips 7 on the front surface of the next heat exchange plate 1 through the limiting action of the sealing gasket 5, the high-temperature liquid and the cooling liquid respectively flow in the channel formed by the corrugated strips 7 on the front surface and the back surface of one heat exchange plate 1 to exchange heat, the high-temperature liquid flows out of the surface of the heat exchange plate 1 through the bottom of the heat exchange plate 1 and the water through holes 2 on the opposite angles of water inlet, and the cooling liquid flows out of the surface of the heat exchange plate 1 through the water through the top of the heat exchange plate 1 and the water through holes 2 on the opposite angles.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.