Large plate heat exchanger

Abstract

The utility model provides a large plate heat exchanger which comprises a heat exchange assembly and reinforcing assemblies installed on the two sides of the heat exchange assembly, the heat exchange assembly comprises a fixing piece, a heat exchange piece is installed in the fixing piece, the heat exchange piece comprises a plurality of cold plates and a plurality of hot plates, and the cold plates and the hot plates are arranged in the fixing piece. A cold water outlet pipe and a cold water inlet pipe are installed on one side of the cold plate piece and communicated with the cold plate piece, a hot water outlet pipe and a hot water inlet pipe are installed on one side of the hot plate piece and communicated with the hot plate piece, and the reinforcing assembly comprises a heating piece and a refrigerating piece. The heating piece and the refrigerating piece are installed on the two sides of the fixing piece respectively, and the heating piece comprises a hot water tank. The heat exchanger has the refrigerating or heating function and the pressurizing function, the flow speed of liquid in the heat exchanger is increased, and the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to a large plate heat exchanger. Background Art

[0002] The plate heat exchanger is a high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. The plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of the tube heat exchanger, the footprint is one-third of that of the tube heat exchanger, and the heat recovery rate can be as high as more than 90%. The types of plate heat exchangers are mainly frame type (detachable) and brazed type. The plate forms mainly include herringbone corrugated plates, horizontal straight corrugated plates and tumor-shaped plates.

[0003] After searching, a Chinese patent with announcement number CN105066751B discloses a plate heat exchanger. When the adjacent plates of the plate heat exchanger are provided with a first sealing ring and a second sealing ring, the first sealing ring forms a steam cavity after the first sealing ring forms a seawater cavity after the second sealing ring forms a seawater cavity after the steam enters the steam cavity through the heat source inlet, and the seawater enters the seawater cavity through the seawater inlet. When the third sealing ring and the fourth sealing ring are provided, the third sealing ring forms a seawater evaporation cavity after the third sealing ring forms a seawater evaporation cavity. The device provided by this scheme uses a plate heat exchanger to replace a tube heat exchanger. The two media in the plate heat exchanger flow in reverse, and the heat exchange efficiency is high, so the end temperature difference of about 1°C can be achieved. At this time, the plate length does not need to be very long. Compared with the tube heat exchanger, the volume of the heat exchanger can be effectively reduced, thereby reducing the footprint of the seawater desalination multi-effect evaporation system.

[0004] Although the above patent can effectively reduce the volume of the heat exchanger and the footprint of the seawater desalination multi-effect evaporation system compared to the tubular heat exchanger, it does not have the cooling or heating function, which may lead to the efficiency of heat exchanger replacement. At the same time, it does not have the pressurization function, which may cause the liquid flow rate inside the heat exchanger to be too slow, affecting the replacement efficiency of the heat exchanger. Utility Model Content

[0005] The purpose of the utility model is to provide a large plate heat exchanger, wherein the reinforcement component used is provided with a refrigeration component, and the refrigeration component is used to improve the efficiency of the heat exchanger in cooling the hot fluid; the heating component is used to improve the efficiency of the heat exchanger in heating the cold fluid; the heat dissipation component is used, and the heat dissipation fan in the heat dissipation component can dissipate the heat absorbed by the heat sink, thereby quickly dissipating the coolant in the cold water tank.

[0006] The utility model adopts the following technical scheme: a large plate heat exchanger, including a heat exchange component and a reinforcement component installed on both sides of the heat exchange component, the heat exchange component includes a fixing part, a heat exchange component is installed inside the fixing part, the heat exchange component includes a plurality of cold plates and a plurality of hot plates, a cold water outlet pipe and a cold water inlet pipe are installed on one side of the cold plate, the cold water outlet pipe and the cold water inlet pipe are connected to the cold plate, a hot water outlet pipe and a hot water inlet pipe are installed on one side of the hot plate, the hot water outlet pipe and the hot water inlet pipe are connected to the hot plate, the reinforcement component includes a heating component and a refrigeration component, the heating component and the refrigeration component are respectively installed on the fixing part On both sides of the component, the heating component includes a hot water tank, an electric heating plate and a protective shell 1 are installed inside the hot water tank, a hot water pump is installed inside the protective shell 1, the hot water inlet pipe is connected to the water outlet of the hot water pump, the input end of the hot water pump is connected to a heat pipe, one end of the hot water outlet pipe is arranged in the hot water tank, the refrigeration component includes a cold water tank, a semiconductor refrigeration plate and a protective shell 2 are installed inside the cold water tank, the protective shell 2 includes a cold water pump, the cold water inlet pipe is connected to the water outlet of the cold water pump, one end of the cold water outlet pipe is arranged in the cold water tank, and the input end of the cold water pump is connected to a cold pipe.

[0007] In one embodiment of the utility model, the fixing member includes fixing plate one, fixing plate two and fixing plate three, the cold plate and the hot plate are installed between the fixing plate one, fixing plate two and fixing plate three, and the cold plate and the hot plate are cross-distributed with each other.

[0008] In one embodiment of the utility model, connecting rods are provided through the four corners of the fixing plate 1, the fixing plate 2 and the fixing plate 3, the outside of the connecting rods is provided with external threads, and threaded caps are provided on the external threads of the connecting rods with the external threads.

[0009] In an embodiment of the utility model, a bottom plate is fixed to the bottom of the fixing plate 1, the fixing plate 2 and the fixing plate 3, and a mounting hole is opened on the top of the bottom plate.

[0010] In one embodiment of the utility model, a water inlet pipe and a water outlet pipe are installed on one side of the hot water tank, a flange is installed at one end of the water inlet pipe and the water outlet pipe, and a flange hole is opened on one side of the flange.

[0011] In one embodiment of the utility model, a water outlet pipe 2 and a water inlet pipe 2 are installed on one side of the cold water tank, a flange 2 is installed at one end of the water outlet pipe 2 and the water inlet pipe 2, and a flange hole 2 is opened on one side of the flange 2.

[0012] In one embodiment of the utility model, the refrigeration component includes a heat dissipation component, the heat dissipation component includes a heat conduction plate and a heat dissipation shell, the heat conduction plate is embedded in one side of the cold water tank, a heat dissipation fin is fixed on one side of the heat conduction plate, the heat dissipation shell is installed on one side of the heat dissipation fin, and a heat dissipation fan and a protective net are installed inside the heat dissipation shell.

[0013] The beneficial effects of the utility model are:

[0014] 1. The adopted reinforcement component is provided with a refrigeration component. When the hot fluid needs to be cooled, the semiconductor refrigeration plate is started and the electric heating plate is turned off. The semiconductor refrigeration plate can cool the coolant in the cold water tank, and then the cold water pump is started to pass the coolant through the cold water inlet pipe and then enter the cold plate. The cold plate and the hot plate are cross-distributed, so that the heat of the hot liquid in the hot plate is transferred to the coolant in the cold plate, and then the coolant flows back to the cold water tank through the cold water outlet pipe, and at the same time, it is connected to the external refrigeration equipment through the outlet pipe 2 and the inlet pipe 2. The use of refrigeration components can improve the efficiency of the heat exchanger in cooling the hot fluid;

[0015] 2. Use heating components. When the cold fluid needs to be heated up, start the electric heating plate, turn off the semiconductor refrigeration plate, and then the electric heating plate heats the heating liquid in the hot water tank. Then start the hot water pump. The hot water pump will let the heating liquid enter the hot plate through the hot water inlet pipe, and then heat the liquid in the cold plate. Then the heating liquid circulates into the hot water tank through the hot water outlet pipe, and is connected to the external heating equipment through the water inlet pipe 1 and the water outlet pipe 1. The use of heating components can improve the efficiency of the heat exchanger in heating the cold fluid. Use heat dissipation components. The heat dissipation fan in the heat dissipation component can dissipate the heat absorbed by the heat sink, thereby quickly dissipating the coolant in the cold water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the heat exchange component in the utility model;

[0019] Figure 3 This is a schematic diagram of the heating element structure in the utility model;

[0020] Figure 4It is a schematic diagram of the structure of the refrigeration component and the heat dissipation component in the utility model.

[0021] In the figure:

[0022] 100-heat exchange component; 110-fixing piece; 111-fixing plate 1; 112-fixing plate 2; 113-fixing plate 3; 114-connecting rod; 115-external thread; 116-threaded cap; 117-bottom plate; 118-mounting hole; 120-heat exchange component; 121-cold plate; 122-hot plate; 123-cold water outlet pipe; 124-cold water inlet pipe; 125-hot water outlet pipe; 126-hot water inlet pipe;

[0023] 200-reinforcement component; 210-heating component; 211-hot water tank; 212-electric heating plate; 213-protective shell one; 214-hot water pump; 215-heat pipe; 216-water inlet pipe one; 217-water outlet pipe one; 218-flange one; 219-flange hole one; 220-refrigeration component; 221-cold water tank; 222-semiconductor refrigeration plate; 223-protective shell two; 224-cold water pump; 225-cold pipe; 226-water outlet pipe two; 227-water inlet pipe two; 228-flange two; 229-flange hole two; 230-heat dissipation component; 231-heat conduction plate; 232-heat sink; 233-heat dissipation shell; 234-heat dissipation fan; 235-protective net. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See also Figure 1-4The utility model provides a large plate heat exchanger, including a heat exchange component 100 and a reinforcement component 200 installed on both sides of the heat exchange component 100. The heat exchange component 100 includes a fixing member 110, and a heat exchange component 120 is installed inside the fixing member 110. The heat exchange component 120 includes a plurality of cold plates 121 and a plurality of hot plates 122. The cold plates 121 and the hot plates 122 are cross-distributed, so that the heat of the hot liquid in the hot plate 122 is transferred to the cooling liquid in the cold plate 121. A cold water outlet pipe 123 and a cold water inlet pipe 124 are installed on one side of the cold plate 121, and the cooling liquid flows back to the cold water tank 221 through the cold water outlet pipe 123, and the cold water outlet pipe 123 and the cold water inlet pipe 124 are connected to the cold plate 121. A hot water outlet pipe 125 and a hot water inlet pipe 126 are installed on one side of the hot plate 122, and the heating liquid circulates into the hot water tank 211 through the hot water outlet pipe 125, and the hot water outlet pipe 125 and the hot water inlet pipe 126 are connected to the hot plate 122.

[0027] The fixing member 110 includes a fixing plate 111, a fixing plate 112 and a fixing plate 3 113. The cold plate 121 and the hot plate 122 are installed between the fixing plates 111, 112 and 113. The cold plate 121 and the hot plate 122 are cross-distributed with each other. Connecting rods 114 are penetrated through the four corners of the fixing plates 111, 112 and 113. External threads 115 are provided on the outside of the connecting rods 114. Threaded caps 116 are provided on the external threads of the connecting rods 114 with external threads 115. A bottom plate 117 is fixed to the bottom of the fixing plates 111, 112 and 113. A mounting hole 118 is opened on the top of the bottom plate 117.

[0028] See also Figure 1 , Figure 3 and Figure 4The strengthening component 200 includes a heating component 210 and a cooling component 220. The cooling component 220 can improve the efficiency of the heat exchanger in cooling the hot fluid. The heating component 210 and the cooling component 220 are respectively installed on both sides of the fixing component 110. The heating component 210 can improve the efficiency of the heat exchanger in heating the cold fluid. The heating component 210 includes a hot water tank 211. The hot water tank 211 is internally installed with an electric heating plate 212 and a protective shell 213. When the cold fluid needs to be heated, the electric heating plate 212 is started, the semiconductor refrigeration plate 222 is closed, and then the electric heating plate 212 heats the heating fluid in the hot water tank 211. The protective shell 213 is internally installed with a hot water pump 214. The hot water pump 214 allows the heating fluid to enter the hot plate 122 through the hot water inlet pipe 126, and then heats the cold plate 12 1 is heated, the hot water inlet pipe 126 is connected to the water outlet end of the hot water pump 214, the input end of the hot water pump 214 is connected with a heat pipe 215, one end of the hot water outlet pipe 125 is arranged in the hot water tank 211, the refrigeration component 220 includes a cold water tank 221, a semiconductor refrigeration plate 222 and a protective shell 223 are installed inside the cold water tank 221, the semiconductor refrigeration plate 222 can cool the coolant in the cold water tank 221, the protective shell 223 includes a cold water pump 224, the cold water inlet pipe 124 is connected to the water outlet end of the cold water pump 224, one end of the cold water outlet pipe 123 is arranged in the cold water tank 221, the input end of the cold water pump 224 is connected with a cold pipe 225, the cold water pump 224 passes the coolant through the cold water inlet pipe 124, and then enters the cold plate 121.

[0029] A water inlet pipe 216 and a water outlet pipe 217 are installed on one side of the hot water tank 211, and are connected to an external heating device through the water inlet pipe 216 and the water outlet pipe 217. A flange 218 is installed at one end of the water inlet pipe 216 and the water outlet pipe 217, and a flange hole 219 is opened on one side of the flange 218. A water outlet pipe 226 and a water inlet pipe 227 are installed on one side of the cold water tank 221, and are connected to an external refrigeration device through the water outlet pipe 226 and the water inlet pipe 227. A flange 218 is installed at one end of the water outlet pipe 226 and the water inlet pipe 227. Flange 228, one side of flange 228 is provided with flange hole 229, the refrigeration component 220 includes a heat sink 230, the heat sink 230 includes a heat conducting plate 231 and a heat dissipation shell 233, the heat conducting plate 231 is embedded in one side of the cold water tank 221, a heat sink 232 is fixed on one side of the heat conducting plate 231, the heat dissipation shell 233 is installed on one side of the heat sink 232, a heat dissipation fan 234 and a protective net 235 are installed inside the heat dissipation shell 233, the heat dissipation fan 234 can dissipate the heat absorbed by the heat sink 232, thereby quickly dissipating the coolant in the cold water tank 221.

[0030] The working process of this utility model:

[0031] When in use, the bottom plate 117 in the fixing part 110 is installed to the specified position by bolts, and then the refrigeration part 220 and the heating part 210 are installed on both sides of the fixing part 110. When the heating part 210 is used, when it is necessary to heat the cold fluid, the electric heating plate 212 is started, and the semiconductor refrigeration plate 222 is closed. Then the electric heating plate 212 heats the heating liquid in the hot water tank 211, and then the hot water pump 214 is started. The hot water pump 214 allows the heating liquid to enter the hot plate 122 through the hot water inlet pipe 126, and then heats the liquid in the cold plate 121. Then the heating liquid circulates into the hot water tank 211 through the hot water outlet pipe 125, and is connected to the external heating equipment through the water inlet pipe 216 and the water outlet pipe 217. The use of the heating part 210 can improve the efficiency of the heat exchanger in heating the cold fluid. When the hot fluid needs to be heated, When cooling, start the semiconductor refrigeration plate 222 and turn off the electric heating plate 212. The semiconductor refrigeration plate 222 can cool the coolant in the cold water tank 221, and then start the cold water pump 224 to pass the coolant through the cold water inlet pipe 124 and then enter the cold plate 121. The cold plate 121 and the hot plate 122 are cross-distributed, so that the heat of the hot liquid in the hot plate 122 is transferred to the coolant in the cold plate 121, and then the coolant flows back to the cold water tank 221 through the cold water outlet pipe 123, and is connected to the external refrigeration equipment through the outlet pipe 226 and the inlet pipe 227. The use of the refrigeration element 220 can improve the efficiency of the heat exchanger in cooling the hot fluid. The use of the heat sink 230, the heat dissipation fan 234 in the heat sink 230 can dissipate the heat absorbed by the heat sink 232, thereby quickly dissipating the coolant in the cold water tank 221.

[0032] It should be noted that the specific models and specifications of the electric heating plate 212, hot water pump 214, semiconductor refrigeration plate 222, cold water pump 224 and cooling fan 234 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0033] The power supply and principles of the electric heating plate 212, the hot water pump 214, the semiconductor refrigeration plate 222, the cold water pump 224 and the cooling fan 234 are clear to those skilled in the art and will not be described in detail herein.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A large plate heat exchanger, characterized in that: The invention comprises a heat exchange component (100) and a reinforcement component (200) installed on both sides of the heat exchange component (100), wherein the heat exchange component (100) comprises a fixing component (110), a heat exchange component (120) is installed inside the fixing component (110), the heat exchange component (120) comprises a plurality of cold plates (121) and a plurality of hot plates (122), a cold water outlet pipe (123) and a cold water inlet pipe (124) are installed on one side of the cold plate (121), and the cold water outlet pipe (123) and the cold water inlet pipe (124) are installed on one side of the cold plate (121). The cold water inlet pipe (124) is in communication with the cold plate (121); a hot water outlet pipe (125) and a hot water inlet pipe (126) are installed on one side of the hot plate (122); the hot water outlet pipe (125) and the hot water inlet pipe (126) are in communication with the hot plate (122); the reinforcing component (200) comprises a heating component (210) and a cooling component (220); the heating component (210) and the cooling component (220) are respectively installed on both sides of the fixing component (110); The heating element (210) comprises a hot water tank (211), an electric heating plate (212) and a protective shell (213) are installed inside the hot water tank (211), a hot water pump (214) is installed inside the protective shell (213), the hot water inlet pipe (126) is connected to the water outlet end of the hot water pump (214), the input end of the hot water pump (214) is connected to a heat pipe (215), one end of the hot water outlet pipe (125) is arranged inside the hot water tank (211), The refrigeration component (220) comprises a cold water tank (221), a semiconductor refrigeration plate (222) and a second protective shell (223) are installed inside the cold water tank (221), the second protective shell (223) comprises a cold water pump (224), the cold water inlet pipe (124) is connected to the water outlet end of the cold water pump (224), one end of the cold water outlet pipe (123) is arranged in the cold water tank (221), and the input end of the cold water pump (224) is connected to a cold conduit (225).

2. A large plate heat exchanger according to claim 1, characterized in that: The fixing member (110) comprises a fixing plate 1 (111), a fixing plate 2 (112) and a fixing plate 3 (113); the cold plate (121) and the hot plate (122) are installed between the fixing plate 1 (111), the fixing plate 2 (112) and the fixing plate 3 (113); and the cold plate (121) and the hot plate (122) are cross-distributed with each other.

3. A large plate heat exchanger according to claim 2, characterized in that: Connecting rods (114) are provided through the four corners of the fixing plate 1 (111), the fixing plate 2 (112) and the fixing plate 3 (113), and the outside of the connecting rods (114) is provided with external threads (115). A threaded cap (116) is provided on the external threads of the connecting rods (114) with the external threads (115).

4. A large plate heat exchanger according to claim 2, characterized in that: A bottom plate (117) is fixed to the bottom of the fixing plate 1 (111), the fixing plate 2 (112) and the fixing plate 3 (113), and a mounting hole (118) is provided at the top of the bottom plate (117).

5. A large plate heat exchanger according to claim 1, characterized in that: A water inlet pipe (216) and a water outlet pipe (217) are installed on one side of the hot water tank (211); a flange plate (218) is installed at one end of the water inlet pipe (216) and the water outlet pipe (217); and a flange hole (219) is opened on one side of the flange plate (218).

6. A large plate heat exchanger according to claim 1, characterized in that: A second water outlet pipe (226) and a second water inlet pipe (227) are installed on one side of the cold water tank (221); a second flange (228) is installed at one end of the second water outlet pipe (226) and the second water inlet pipe (227); and a second flange hole (229) is opened on one side of the second flange (228).

7. A large plate heat exchanger according to claim 1, characterized in that: The refrigeration component (220) includes a heat dissipation component (230), and the heat dissipation component (230) includes a heat conduction plate (231) and a heat dissipation shell (233). The heat conduction plate (231) is embedded in one side of the cold water tank (221), a heat dissipation fin (232) is fixed to one side of the heat conduction plate (231), and the heat dissipation shell (233) is installed on one side of the heat dissipation fin (232). A heat dissipation fan (234) and a protective net (235) are installed inside the heat dissipation shell (233).

Images