CN212132901U - Heat exchange plate group and heat exchanger - Google Patents
Heat exchange plate group and heat exchanger Download PDFInfo
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- CN212132901U CN212132901U CN202020436552.8U CN202020436552U CN212132901U CN 212132901 U CN212132901 U CN 212132901U CN 202020436552 U CN202020436552 U CN 202020436552U CN 212132901 U CN212132901 U CN 212132901U
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Abstract
The utility model discloses a heat exchange plate group and a heat exchanger, wherein heat exchange plates are arranged in a stacking way at intervals, and first water cavities are arranged in the heat exchange plates, so that the first water cavities of each heat exchange plate are arranged at intervals in parallel; and then, the water inlet channel and the water outlet channel are respectively communicated with each first water cavity through the water inlet structure and the water outlet structure, so that in the actual use process, water is introduced into the water inlet channel, flows into each first water cavity through the first water inlet, and is output in a centralized manner through the water outlet channel, and the water smoothly completes circulation. Because the ventilation channel communicated with the combustion cavity is formed between the two adjacent heat exchange plates, the surface of the heat exchange plate is only separated between the first water cavity and the ventilation channel, the heat transfer area between the first water cavity and the ventilation channel is increased, the heat transfer efficiency of the hot water equipment is greatly improved, and the water outlet rate of the equipment is higher.
Description
Technical Field
The utility model relates to a hot water equipment technical field especially relates to a heat exchange plate group and heat exchanger.
Background
With the improvement of quality of life, hot water devices are gradually popularized in daily life, such as: gas water heaters, gas heating water heaters, and the like. The main heat exchangers of most of hot water equipment used in life all adopt finned tube heat exchangers, and in the heat exchange process, the shell is coiled by the water pipe, so that the heat transfer between the water pipe and the shell is realized. However, since the contact area between the water pipe and the housing is small, the heat transfer efficiency between the water pipe and the housing is easily low, and a large amount of energy is wasted.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model provides a first technical problem solve be to provide a heat exchange plate group, improve hot water equipment's heat transfer efficiency for the water yield of equipment is higher.
The utility model provides a second technical problem provide a heat exchanger, improve hot water equipment's heat transfer efficiency for the water yield of equipment is higher.
The technical scheme is as follows:
the first technical problem is solved by the following technical scheme:
a heat exchange plate pack comprising: the heat exchange plates are stacked at intervals, a ventilation channel used for being communicated with a combustion cavity is formed between every two adjacent heat exchange plates, a first water cavity is arranged in each heat exchange plate and comprises a water inlet section, a temperature reduction section, a water body cavity and a water outlet section, wherein water paths are sequentially communicated, and the temperature reduction section is positioned on one side, close to the combustion cavity, of each heat exchange plate; the water inlet structure is provided with a water inlet channel and a first water inlet, and the water inlet channel, the first water inlet and the water inlet section are communicated in sequence; and the water outlet structure is provided with a water outlet channel and a first water outlet, and the water outlet section, the first water outlet and the water outlet channel are sequentially communicated.
Heat exchange plate group, compare produced beneficial effect with the background art: the heat exchange plates are arranged in a stacking mode at intervals, and first water cavities are arranged in the heat exchange plates, so that the first water cavities of the heat exchange plates are arranged in parallel at intervals; and then, the water inlet channel and the water outlet channel are respectively communicated with each first water cavity through the water inlet structure and the water outlet structure, so that in the actual use process, water is introduced into the water inlet channel, flows into each first water cavity through the first water inlet, and is output in a centralized manner through the water outlet channel, and the water smoothly completes circulation. Because the ventilation channel communicated with the combustion cavity is formed between the two adjacent heat exchange plates, the surface of the heat exchange plate is only separated between the first water cavity and the ventilation channel, the heat transfer area between the first water cavity and the ventilation channel is increased, the heat transfer efficiency of the hot water equipment is greatly improved, and the water outlet rate of the equipment is higher. In addition, when water enters the first water cavity, the water firstly flows into the temperature reduction section from the water inlet section, and the temperature of the combustion environment is firstly reduced by the inflow water because the temperature reduction section is distributed at one side close to the combustion cavity, so that the water temperature is increased, and the increased water flows into the water split cavity again. Therefore, the heat exchanger not only is beneficial to improving the heat exchange efficiency of water, but also reduces the temperature of the combustion environment, so that the surface temperature of the heat exchanger is reduced.
The principle and effect of the present invention will be further explained by combining the above scheme:
in one embodiment, the heat exchange plate is of an integrated structure, and the first water cavity is a hollow part in the heat exchange plate; or the heat exchange plate is formed by splicing two partial structures, and the first water cavity is formed between the two partial structures.
In one embodiment, the heat exchange plate is provided with a flow blocking groove, and the side wall of the flow blocking groove extends into the ventilation channel.
In one embodiment, at least one of the two side surfaces of the heat exchange plate is provided with a supporting protrusion, and the supporting protrusion is supported between two adjacent heat exchange plates.
In one embodiment, the two side surfaces of each heat exchange plate are provided with the supporting protrusions, and the supporting protrusions on one side are in interference fit with the supporting protrusions on the other side between two adjacent heat exchange plates.
In one embodiment, the heat exchange plates are provided with first enclosing plates, the first enclosing plates are enclosed around the periphery of the water inlet structure, the first enclosing plates penetrate through the heat exchange plates, and the first enclosing plates on two sides are in interference fit with each other between two adjacent heat exchange plates.
In one embodiment, a first pressure relief channel communicated with the first water cavity is arranged in the first enclosing plate, a first pressure relief opening is arranged on the water inlet structure, and the water inlet channel is communicated with the first pressure relief channel through the first pressure relief opening.
In one embodiment, the water inlet structure includes more than two water inlet pipes, the water inlet pipes are arranged in one-to-one correspondence with the heat exchange plates and penetrate through the heat exchange plates, the water inlet pipes on two sides are mutually communicated in a sealing manner between two adjacent heat exchange plates to form the water inlet channel, and the first water inlet and the first pressure relief opening are both arranged in the water inlet pipes.
In one embodiment, the heat exchange plates are provided with second enclosing plates, the second enclosing plates are enclosed around the periphery of the water outlet structure, the second enclosing plates penetrate through the heat exchange plates, and the second enclosing plates on two sides are in interference fit with each other between two adjacent heat exchange plates.
In one embodiment, a first connecting plate and a second connecting plate are connected between two adjacent heat exchange plates, the first connecting plate and the second connecting plate are respectively located at two opposite sides of the heat exchange plates, and the first connecting plate, the second connecting plate and two adjacent heat exchange plates define the ventilation channel therebetween.
The second technical problem is solved by the following technical solutions:
the heat exchanger comprises a heat exchange shell and the heat exchange plate group, wherein the heat exchange plate group is arranged in the heat exchange shell, a combustion cavity communicated with a ventilation channel is reserved in the heat exchange shell, and a second water inlet communicated with a water inlet channel and a second water outlet communicated with a water outlet channel are formed in the heat exchange shell.
The heat exchanger, compare produced beneficial effect with the background art: the heat exchange plate group is adopted, the heat exchange plates are arranged in a stacking mode at intervals, and first water cavities are arranged in the heat exchange plates, so that the first water cavities of the heat exchange plates are arranged in parallel at intervals; and then, the water inlet channel and the water outlet channel are respectively communicated with each first water cavity through the water inlet structure and the water outlet structure, so that in the actual use process, water is introduced into the water inlet channel, flows into each first water cavity through the first water inlet, and is output in a centralized manner through the water outlet channel, and the water smoothly completes circulation. Because the ventilation channel communicated with the combustion cavity is formed between the two adjacent heat exchange plates, the surface of the heat exchange plate is only separated between the first water cavity and the ventilation channel, the heat transfer area between the first water cavity and the ventilation channel is increased, the heat transfer efficiency of the hot water equipment is greatly improved, and the water outlet rate of the equipment is higher. In addition, when water enters the first water cavity, the water firstly flows into the temperature reduction section from the water inlet section, and the temperature of the combustion environment is firstly reduced by the inflow water because the temperature reduction section is distributed at one side close to the combustion cavity, so that the water temperature is increased, and the increased water flows into the water split cavity again. Therefore, the heat exchanger not only is beneficial to improving the heat exchange efficiency of water, but also reduces the temperature of the combustion environment, so that the surface temperature of the heat exchanger is reduced.
Drawings
Fig. 1 is a view of a heat exchanger according to an embodiment of the present invention;
fig. 2 is another perspective view of a heat exchanger structure according to an embodiment of the present invention;
fig. 3 is an exploded schematic view of a heat exchanger according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the structure at circle A in FIG. 3;
fig. 5 is a view of a heat exchange plate according to an embodiment of the present invention;
fig. 6 is another perspective view of a heat exchange plate structure according to an embodiment of the present invention.
Description of reference numerals:
100. the heat exchange plate group comprises a heat exchange plate group, 110, a heat exchange plate, 111, a ventilation channel, 112, a first water cavity, 1121, a water inlet section, 1122, a water outlet section, 1123, a water body cavity, 1124, a cooling section, 113, a flow blocking groove, 114, a first connecting plate, 115, a second connecting plate, 120, a water inlet structure, 121, a water inlet channel, 122, a first water inlet, 123, a first pressure relief opening, 124, a water inlet pipe, 130, a water outlet structure, 131, a water outlet channel, 132, a first water outlet, 133, a second pressure relief opening, 134, a water outlet pipe, 140, a supporting bulge, 150, a first enclosing plate, 151, a first pressure relief channel, 160, a second enclosing plate, 161, a second pressure relief channel, 200, a heat exchange shell, 210, a combustion cavity, 220, a first shell, 221, an installation hole, 222, an observation hole, 230, a second shell, 240, a second water inlet, 250, a second water outlet, 260, a first fixing piece, a second fixing piece, 280, a, A second water chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.
In one embodiment, referring to fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, a heat exchange plate group 100 includes: heat exchange plate 110, water inlet structure 120 and water outlet structure 130. A plurality of heat exchange plates 110 are arranged in a stacked mode at intervals, and a ventilation channel 111 used for being communicated with the combustion chamber 210 is formed between every two adjacent heat exchange plates 110. A first water cavity 112 is arranged in the heat exchange plate 110, and the first water cavity 112 includes a water inlet section 1121, a temperature reduction section 1124, a water cavity 1123 and a water outlet section 1122, which are sequentially communicated with a water path. The cooling section 1124 is located at a side of the heat exchange plate 110 near the combustion chamber 210. The water inlet structure 120 is provided with a water inlet channel 121 and a first water inlet 122, and the water inlet channel 121, the first water inlet 122 and the water inlet segment 1121 are sequentially communicated. The water outlet structure 130 is provided with a water outlet channel 131 and a first water outlet 132, and the water outlet section 1122, the first water outlet 132 and the water outlet channel 131 are sequentially communicated.
In the heat exchange plate set 100, the heat exchange plates 110 are stacked at intervals, and the first water cavities 112 are arranged in the heat exchange plates 110, so that the first water cavities 112 of each heat exchange plate 110 are spaced in parallel; then, the water inlet channel 121 and the water outlet channel 131 are respectively communicated with each first water cavity 112 through the water inlet structure 120 and the water outlet structure 130, so that in the actual use process, water is introduced into the water inlet channel 121, flows into each first water cavity 112 through the first water inlet 122, and is output intensively through the water outlet channel 131, so that the water smoothly completes the circulation. Because the ventilation channel 111 communicated with the combustion chamber 210 is formed between two adjacent heat exchange plates 110, the surface of the heat exchange plate 110 is only separated between the first water chamber 112 and the ventilation channel 111, the heat transfer area between the first water chamber 112 and the ventilation channel 111 is increased, the heat transfer efficiency of the hot water equipment is greatly improved, and the water yield of the equipment is higher. In addition, when water enters the first water cavity 112, the water first flows into the temperature-reducing section 1124 from the water inlet section 1121, and since the temperature-reducing section 1124 is distributed near the combustion cavity 210, the temperature of the combustion environment is first reduced by the inflowing water, so that the temperature of the water is increased, and the increased water flows into the water-splitting cavity 1123 again. Therefore, the heat exchanger not only is beneficial to improving the heat exchange efficiency of water, but also reduces the temperature of the combustion environment, so that the surface temperature of the heat exchanger is reduced.
Specifically, the water inlet structure 120 and the water outlet structure 130 both penetrate through each heat exchange plate 110 and are connected with each heat exchange plate 110 by welding. The water inlet structure 120 and the water outlet structure 130 may be a multi-pipe structure or a complete pipe structure. When the water inlet structure 120 and the water outlet structure 130 are both multi-pipe structures, the pipes are in sealed communication with each other.
It should be noted that the sealed communication between the pipe and the pipe is understood as the sealed connection between one end of the pipe and one end of the pipe, so as to avoid the water leakage from the joint of the pipe and the pipe. The sealing communication mode can be welding, sleeve pipe connection, bonding and the like.
Further, the heat exchange plate 110 is an integrated structure, and the first water cavity 112 is a hollow portion inside the heat exchange plate 110; alternatively, the heat exchange plate 110 is formed by combining two parts, and the first water cavity 112 is formed between the two parts. Therefore, the forming manner of the first water cavity 112 is divided into two manners, i.e., directly performing cavity processing on the heat exchange plate 110, so that the first water cavity 112 is a hollow portion of the heat exchange plate 110; and the second water cavity 112 is formed by splicing and welding two part structures, and is a space between the two part structures. The two-part structure can be designed to be the same structure or symmetrical structure.
In one embodiment, referring to fig. 5, the heat exchange plate 110 is provided with a flow blocking groove 113. The side wall of the flow-blocking groove 113 extends into the vent passage 111. Therefore, the flow blocking grooves 113 are formed by being sunken into the ventilation channels 111 on the heat exchange plate 110, the side walls of the flow blocking grooves 113 extending into the ventilation channels 111 form flow blocking structures, the flow path of water in the first water cavity 112 is changed, the retention time of the water in the first water cavity 112 is prolonged, and the water and hot gas have enough time to carry out heat transfer, so that the heat utilization rate of the hydrothermal equipment is improved. Meanwhile, the flow blocking groove 113 is formed in the heat exchange plate 110, so that the surface of the heat exchange plate 110 is concave and convex, and the compression strength of the heat exchange plate 110 is increased.
In one embodiment, referring to fig. 4, at least one of the two sides of the heat exchange plate 110 is provided with a supporting protrusion 140. The support protrusions 140 are supported between adjacent two heat exchange plates 110. Therefore, the heat exchange plate 110 of the present embodiment has two states: firstly, one side of the heat exchange plate 110 is provided with a supporting bulge 140; second, both sides of the heat exchange plate 110 are provided with supporting protrusions 140. When the support protrusions 140 are arranged on one side of the heat exchange plates 110, one end of each support protrusion 140 is connected to one heat exchange plate 110 between two adjacent heat exchange plates 110, and the other end of each support protrusion 140 abuts against the other heat exchange plate 110, so that the connection strength between the heat exchange plates 110 and the heat exchange plates 110 is improved, and the stable space of the ventilation channel 111 is ensured; when the heat exchange plate 110 is provided with the supporting protrusions 140 on both sides, the supporting protrusions 140 on one side are in interference fit with the supporting protrusions 140 on the other side in the stacking distribution of the heat exchange plate 110.
Specifically, referring to fig. 4, there are a plurality of supporting protrusions 140, and the plurality of supporting protrusions 140 are distributed on the heat exchange plate 110 at intervals. Meanwhile, the support protrusion 140 has a cylindrical shape.
Further, referring to fig. 4, two side surfaces of the heat exchange plate 110 are provided with supporting protrusions 140. Between two adjacent heat exchange plates 110, the support protrusions 140 on one side are in interference fit with the support protrusions 140 on the other side. In this way, the support protrusions 140 are provided on both sides of the heat exchange plates 110, so that there is enough space between two adjacent heat exchange plates 110 for more hot gas to enter the ventilation channels 111.
Alternatively, the support protrusions 140 may be mounted on the heat exchange plate 110 by welding, integral molding, screwing, or the like. The integral molding mode can be extrusion, casting, die casting and the like.
In one embodiment, referring to fig. 5, a first enclosing plate 150 is disposed on the heat exchange plate 110. The first enclosing plate 150 encloses the periphery of the water inlet structure 120, and the first enclosing plate 150 penetrates the heat exchange plate 110. Between two adjacent heat exchange plates 110, the first enclosing plates 150 on two sides are in interference fit with each other. Thus, when the two heat exchange plates 110 are stacked, one end of the first enclosing plate 150 at both sides tightly contacts with one end of the first enclosing plate 150, so as to form a protection structure for the water inlet structure 120. Through this protective structure, effectively prevent into that water structure 120 from directly exposing in the hot gas, and lead to into water structure 120 to take place to corrode.
Further, referring to fig. 5, a first pressure relief channel 151 is disposed in the first enclosing plate 150 and is communicated with the first water cavity 112. The water inlet structure 120 is provided with a first pressure relief opening 123. The water inlet passage 121 communicates with the first relief passage 151 through the first relief port 123. In this manner, providing a first pressure relief channel 151 in the first enclosure 150 reduces the pressure at the first water inlet 122, making it easier for water to pass through the first water inlet 122 and enter the first water chamber 112.
In one embodiment, referring to fig. 5, the water inlet structure 120 includes more than two water inlet pipes 124. The water inlet pipes 124 are disposed in one-to-one correspondence with the heat exchange plates 110 and penetrate through the heat exchange plates 110. Between two adjacent heat exchange plates 110, the water inlet pipes 124 on two sides are mutually communicated in a sealing manner, and form a water inlet channel 121, and the first water inlet 122 and the first pressure relief opening 123 are both arranged in the water inlet pipe 124. Therefore, the water inlet structure 120 of the present embodiment is composed of more than two water inlet pipes 124, and forms the water inlet channel 121. Meanwhile, a single water inlet pipe 124 is connected to the heat exchange plates 110 such that the first water chamber 112 of each layer of the heat exchange plates 110 is supplied with water from the corresponding water inlet pipe 124. In addition, in the embodiment, the water inlet pipe 124 penetrates through the heat exchange plate 110, so that when the heat exchange plate 110 is laminated with the heat exchange plate 110, one end of the water inlet pipe 124 is in sealed communication with one end of the water inlet pipe 124.
It should be noted that the sealed communication between one end of the inlet pipe 124 and one end of the inlet pipe 124 should be understood as: the sealed connection between one end of the water inlet pipe 124 and one end of the water inlet pipe 124 prevents water from leaking from the connection between the water inlet pipe 124 and the water inlet pipe 124. The sealing communication mode can be welding, sleeve pipe connection, bonding and the like.
In one embodiment, referring to fig. 6, a second enclosing plate 160 is disposed on the heat exchange plate 110. The second enclosing plate 160 encloses the periphery of the water outlet structure 130, and the second enclosing plate 160 penetrates the heat exchange plate 110. Between two adjacent heat exchange plates 110, the second enclosing plates 160 on both sides are in interference fit with each other. Thus, when the two heat exchange plates 110 are stacked, one end of the second enclosing plate 160 at both sides tightly contacts with one end of the second enclosing plate 160, so as to form a protective structure for the water outlet structure 130. Through this protective structure, effectively prevent to go out water structure 130 and directly expose in hot gas, and lead to out water structure 130 to take place to corrode.
Further, referring to fig. 6, a second pressure relief channel 161 is disposed in the second enclosing plate 160 and is communicated with the first water cavity 112. The water outlet structure 130 is provided with more than two second pressure relief ports 133. The water outlet passage 131 communicates with the second relief passage 161 through the second relief port 133. In this manner, the second pressure relief channel 161 is provided in the second enclosing plate 160 to reduce the pressure at the first water outlet 132, so that water can more easily enter the first water chamber 112 through the first water outlet 132.
In one embodiment, referring to fig. 6, the water outlet structure 130 includes more than two water outlet pipes 134. The water outlet pipes 134 are disposed in one-to-one correspondence with the heat exchange plates 110 and penetrate through the heat exchange plates 110. Between two adjacent heat exchange plates 110, the water outlet pipes 134 on both sides are hermetically communicated with each other to form a water outlet channel 131, and the first water outlet 132 and the second pressure relief port 133 are both disposed in the water outlet pipe 134. Therefore, the water outlet structure 130 of the present embodiment is composed of more than two water outlet pipes 134, and forms the water outlet channel 131. Meanwhile, a single water outlet pipe 134 is connected to the heat exchange plates 110 such that the first water chamber 112 of each layer of the heat exchange plates 110 is supplied with water from the corresponding water outlet pipe 134. In addition, in the embodiment, the water outlet pipe 134 penetrates through the heat exchange plate 110, so that when the heat exchange plate 110 is stacked with the heat exchange plate 110, one end of the water outlet pipe 134 is hermetically communicated with one end of the water outlet pipe 134.
It should be noted that, the sealing communication between one end of the water outlet pipe 134 and one end of the water outlet pipe 134 should be understood as: one end of the water outlet pipe 134 is hermetically connected with one end of the water outlet pipe 134, so that water is prevented from leaking from the connection position of the water outlet pipe 134 and the water outlet pipe 134. The sealing communication mode can be welding, sleeve pipe connection, bonding and the like.
In one embodiment, referring to fig. 5, there are a plurality of water-containing cavities 1123, the water-containing cavities 1123 are arranged in parallel at intervals, and the water-containing cavities 1123 are sequentially connected, and the water-containing cavities 1123 at both ends are respectively connected to the water inlet segment 1121 and the water outlet segment 1122, so as to ensure that the water has enough heat transfer time in the first water cavity 112.
Specifically, referring to fig. 5, there are three water-containing cavities 1123, three water-containing cavities 1123 are disposed at intervals, and the three water-containing cavities 1123 are sequentially communicated to form or approximate a serpentine channel.
In one embodiment, referring to fig. 5, a first connection plate 114 and a second connection plate 115 are connected between two adjacent heat exchange plates 110. The first connecting plate 114 and the second connecting plate 115 are respectively located at two opposite sides of the heat exchange plates 110, and the first connecting plate 114, the second connecting plate 115 and two adjacent heat exchange plates 110 define the ventilation channel 111 therebetween. Thus, the first connecting plate 114 and the second connecting plate 115 ensure stable connection between the heat exchange plates 110 and the heat exchange plates 110, and improve the overall structural strength of the heat exchange plate assembly 100. Meanwhile, the ventilation channel 111 defined by the first connecting plate 114, the second connecting plate 115 and the two adjacent heat exchange plates 110 has two openings, one opening is used for facing the combustion chamber 210, and the other opening is used for discharging hot gas.
In one embodiment, referring to fig. 1, fig. 2 and fig. 3, a heat exchanger includes a heat exchange shell 200 and the heat exchange plate group 100 in any of the above embodiments. The heat exchange plate pack 100 is installed in the heat exchange shell 200. A combustion chamber 210 communicated with the ventilation channel 111 is reserved in the heat exchange shell 200, and a second water inlet 240 communicated with the water inlet channel 121 and a second water outlet 250 communicated with the water outlet channel 131 are arranged on the heat exchange shell 200.
In the heat exchanger, the heat exchange plates 110 are stacked at intervals by using the heat exchange plate group 100, and the first water cavities 112 are arranged in the heat exchange plates 110, so that the first water cavities 112 of each heat exchange plate 110 are spaced in parallel; then, the water inlet channel 121 and the water outlet channel 131 are respectively communicated with each first water cavity 112 through the water inlet structure 120 and the water outlet structure 130, so that in the actual use process, water is introduced into the water inlet channel 121, flows into each first water cavity 112 through the first water inlet 122, and is output intensively through the water outlet channel 131, so that the water smoothly completes the circulation. Because the ventilation channel 111 communicated with the combustion chamber 210 is formed between two adjacent heat exchange plates 110, the surface of the heat exchange plate 110 is only separated between the first water chamber 112 and the ventilation channel 111, the heat transfer area between the first water chamber 112 and the ventilation channel 111 is increased, the heat transfer efficiency of the hot water equipment is greatly improved, and the water yield of the equipment is higher. In addition, when water enters the first water cavity 112, the water first flows into the temperature-reducing section 1124 from the water inlet section 1121, and since the temperature-reducing section 1124 is distributed near the combustion cavity 210, the temperature of the combustion environment is first reduced by the inflowing water, so that the temperature of the water is increased, and the increased water flows into the water-splitting cavity 1123 again. Therefore, the heat exchanger not only is beneficial to improving the heat exchange efficiency of water, but also reduces the temperature of the combustion environment, so that the surface temperature of the heat exchanger is reduced. In addition, in the embodiment, the combustion chamber 210 is arranged in the heat exchange shell 200, so that on one hand, an independent combustion chamber is not required to be additionally arranged, the parts of hot water equipment are reduced, and the assembly efficiency is improved; on the other hand, the air tightness of the connection between the burner and the heat exchanger does not need to be considered, and the safety and the reliability of the hot water equipment are improved.
Further, referring to fig. 3, a second water cavity 280 is further disposed in the heat exchange shell 200, the second water cavity 280 is respectively communicated with the second water inlet 240 and the second water outlet 250, and the second water cavity 280 is distributed around the combustion chamber 210. When water enters from the second water inlet 240, a part of the water enters the water inlet channel 121, and a part of the water enters the second water cavity 280, so that the second water cavity 280 is formed in the heat exchange shell 200, the heat of the burner on the heat exchange shell 200 is fully obtained by using the water in the second water cavity 280, and the water outlet rate of the hot water equipment is greatly improved. Meanwhile, the temperature outside the shell is reduced, and the energy of the combustor is fully utilized.
Further, referring to fig. 3, the heat exchange shell 200 includes a first shell 220, a second shell 230, and a first fixing member 260 and a second fixing member 270 sleeved at two ends of the first shell 220 and the second shell 230, and a second water cavity 280 is disposed in both the first shell 220 and the second shell 230.
Specifically, the first shell 220, the second shell 230 and the heat exchange plate 110 are made of stainless steel, and the first shell 220, the heat exchange plate group 100 and the second shell 230 may be welded together by using copper material.
In one embodiment, referring to fig. 1, the heat exchange shell 200 is provided with a mounting hole 221 and a viewing hole 222 which are communicated with the combustion chamber 210, and the first mounting hole 221 is used for mounting an ignition needle and a feedback needle.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A heat exchange plate pack, comprising:
the heat exchange plates (110) are arranged in a stacked mode at intervals, a ventilation channel (111) used for being communicated with a combustion cavity (210) is formed between every two adjacent heat exchange plates (110), a first water cavity (112) is arranged in each heat exchange plate (110), each first water cavity (112) comprises a water inlet section (1121), a temperature reduction section (1124), a water body cavity (1123) and a water outlet section (1122), all water channels are sequentially communicated, and the temperature reduction section (1124) is located on one side, close to the combustion cavity (210), of each heat exchange plate (110);
the water inlet structure (120) is provided with a water inlet channel (121) and a first water inlet (122), and the water inlet channel (121), the first water inlet (122) and the water inlet section (1121) are communicated in sequence; and
the water outlet structure (130) is provided with a water outlet channel (131) and a first water outlet (132), and the water outlet section (1122), the first water outlet (132) and the water outlet channel (131) are communicated in sequence.
2. The heat exchanger plate group according to claim 1, wherein the heat exchanger plate (110) is a unitary structure and the first water cavity (112) is a hollow portion inside the heat exchanger plate; or the heat exchange plate (110) is formed by splicing two partial structures, and the first water cavity (112) is formed between the two partial structures.
3. The heat exchanger plate group according to claim 1, wherein the heat exchanger plate (110) is provided with a flow blocking groove (113), and a side wall of the flow blocking groove (113) extends into the vent channel (111).
4. A heat exchanger plate group according to claim 1, wherein at least one of the two side surfaces of the heat exchanger plates (110) is provided with a supporting protrusion (140), and between two adjacent heat exchanger plates (110), the supporting protrusion (140) on one side is in interference fit with the supporting protrusion (140) on the other side or the side surface of the heat exchanger plate (110).
5. The heat exchange plate group according to claim 1, wherein a first enclosing plate (150) is disposed on the heat exchange plates (110), the first enclosing plate (150) encloses the periphery of the water inlet structure (120), and the first enclosing plate (150) penetrates through the heat exchange plates (110), and the first enclosing plates (150) on two sides are in interference fit with each other between two adjacent heat exchange plates (110).
6. The heat exchange plate group according to claim 5, wherein a first pressure relief channel (151) is provided in the first enclosing plate (150) and is communicated with the first water cavity (112), a first pressure relief opening (123) is provided in the water inlet structure (120), and the water inlet channel (121) is communicated with the first pressure relief channel (151) through the first pressure relief opening (123).
7. The heat exchange plate group according to claim 6, wherein the water inlet structure (120) includes more than two water inlet pipes (124), the water inlet pipes (124) are disposed corresponding to the heat exchange plates (110) one by one, and penetrate through the heat exchange plates (110), between two adjacent heat exchange plates (110), the water inlet pipes (124) on two sides are in sealed communication with each other, and form the water inlet channel (121), and the first water inlet (122) and the first pressure relief port (123) are both disposed in the water inlet pipe (124).
8. The heat exchange plate group according to claim 1, wherein a second enclosing plate (160) is arranged on the heat exchange plates (110), the second enclosing plate (160) encloses the periphery of the water outlet structure (130), and the second enclosing plate (160) penetrates through the heat exchange plates (110), and the second enclosing plates (160) on two sides are in interference fit with each other between two adjacent heat exchange plates (110).
9. The heat exchanger plate group according to any one of claims 1 to 8, wherein a first connecting plate (114) and a second connecting plate (115) are connected between two adjacent heat exchanger plates (110), the first connecting plate (114) and the second connecting plate (115) are respectively located at two opposite sides of the heat exchanger plates (110), and the first connecting plate (114), the second connecting plate (115) and two adjacent heat exchanger plates (110) enclose the ventilation channel (111).
10. A heat exchanger, characterized in that, includes heat transfer shell (200) and heat transfer plate group (100) of any one of claims 1-9, heat transfer plate group (100) is installed in heat transfer shell (200), leave in heat transfer shell (200) with combustion chamber (210) of breather passage (111) intercommunication, be equipped with on heat transfer shell (200) with the second water inlet (240) of inhalant canal (121) intercommunication and with the second delivery port (250) of exhalant canal (131) intercommunication.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020436552.8U CN212132901U (en) | 2020-03-30 | 2020-03-30 | Heat exchange plate group and heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020436552.8U CN212132901U (en) | 2020-03-30 | 2020-03-30 | Heat exchange plate group and heat exchanger |
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| CN212132901U true CN212132901U (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306794A (en) * | 2020-03-30 | 2020-06-19 | 广东万和新电气股份有限公司 | Heat exchanger and hot water equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306794A (en) * | 2020-03-30 | 2020-06-19 | 广东万和新电气股份有限公司 | Heat exchanger and hot water equipment |
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