Evaporator plate and vapour compression machine using the same

Abstract

This invention relates to the field of plate evaporator technology, and provides a steam compressor for a plate evaporator and its operating principle, comprising: a base plate and a limiting ring 1, and a heater. A drive mechanism is fixedly installed on the top of the base plate, and a transmission shaft is fixedly installed on the output end of the drive mechanism. A compressor body is fixedly installed on the top of the base plate. The rotation of the transmission shaft drives the internal compression mechanism of the compressor body to rotate for compressing steam. A thick pipe is fixedly installed on one side of the compressor body. In this embodiment of the invention, by starting the circulation pump, the residue inside the separator is extracted through the bend pipe and then output through the pipe to the inside of the dryer for drying. The steam transfers heat to the heater through the recovery pipe, cools itself back into clean liquid water, and settles at the bottom of the compressor body. By rotating the one-way valve 2, the liquid water inside the heater is discharged and collected for reuse.

Description

Technical Field

[0001] This invention relates to the field of plate evaporator technology, and more particularly to a steam compressor for a plate evaporator and its operating principle. Background Technology

[0002] With the rapid development of industrialization, the treatment of high-concentration sodium chloride wastewater has become a key challenge restricting the green and sustainable development of many industries. This type of wastewater has a complex composition, high salt content, and strong corrosiveness. Traditional treatment methods such as membrane concentration are prone to clogging, chemical methods generate secondary pollution and are costly, while conventional multi-effect evaporation technology suffers from excessive energy consumption and low thermal efficiency.

[0003] The existing system's heater heat exchange method is inefficient, making it difficult to guarantee the stable temperature rise required by the compressor. Simultaneously, poor non-condensable gas discharge easily leads to salt precipitation and scaling on the heat exchange surfaces, causing equipment blockage, frequent cleaning and maintenance, and affecting continuous production. Furthermore, the separator design is flawed; its inlet nozzle and salt leg structure fail to effectively optimize gas-liquid-solid three-phase separation, resulting in a large amount of fine crystalline particles circulating within the system. This not only reduces evaporation efficiency but also exacerbates erosion and wear on pipes and circulating pumps, increasing equipment load, and is particularly ineffective for the crystallization separation of mixed salts. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where poor condensate discharge easily leads to salt precipitation and scaling on the heat exchange surface, causing equipment blockage, frequent cleaning and maintenance, and affecting continuous production.

[0005] To achieve the above objectives, the present invention employs the following technical solution: a steam compressor for a plate evaporator, comprising: a base plate and a limiting ring, a heater, a drive mechanism fixedly mounted on the top of the base plate, a transmission shaft fixedly mounted on the output end of the drive mechanism, a compressor body fixedly mounted on the top of the base plate, the transmission shaft rotating to drive the internal compression mechanism of the compressor body to compress steam, a thick pipe fixedly mounted on one side of the compressor body, one end of the thick pipe being detachably connected to a connecting flange, a long pipe fixedly mounted on one end of the connecting flange, a heater fixedly mounted on the top of the base plate, a heating tank disposed on the top of the heater, the long pipe fixedly mounted on the top of the heating tank, a recovery pipe fixedly mounted on one side of the heater, one end of the recovery pipe fixedly mounted on the output end of the compressor body.

[0006] The technical effect of adopting the above-mentioned further solution is as follows: the heater is started to heat the heating tank. After heating, the high-concentration sodium chloride wastewater will generate water vapor. Then, by starting the drive mechanism, the drive mechanism drives the transmission shaft at the output end to rotate. At this time, the compression mechanism inside the transmission shaft rotates, and the water vapor inside the heating tank is extracted through the long pipe. Then, it enters the compressor body through the connecting flange and the thick pipe. After the water vapor is compressed, it is output to the heater through the recovery pipe, which can further heat the heating tank and realize the circulation of water vapor. The rotation speed of the transmission shaft can be controlled in real time by setting sensors, thermometers and sensors to adjust the temperature, speed and material feeding and discharging. The steam is output to the heater through the recovery pipe to further heat the heating tank and realize circulation. After the water vapor enters the heater and is heated, the water vapor will condense into water after a certain period of time.

[0007] In a preferred embodiment, a separator is fixedly installed at the bottom of the heating tank, a one-way valve is provided at the bottom of the separator, and a bent pipe is fixedly installed at the bottom of the separator.

[0008] The technical effect of adopting the above-mentioned further solution is that the residue of high-concentration sodium chloride wastewater will be deposited inside the separator, and the one-way valve will be rotated.

[0009] In a preferred embodiment, a circulation pump is fixedly installed on the top of the base plate, one end of the bend is fixedly installed on the input end of the circulation pump, and a dryer is fixedly installed on the top of the base plate.

[0010] The technical effect of adopting the above-mentioned further solution is that by starting the circulating pump, the residue inside the separator is extracted through the bend pipe and then output through the pipeline to the inside of the dryer for drying.

[0011] In a preferred embodiment, the output end of the circulating pump is connected to the inside of the dryer via a pipe, a wastewater tank is fixedly installed on the top of the base plate, and a short pipe is fixedly installed on the side of the wastewater tank near its bottom.

[0012] The technical effect of adopting the above-mentioned further solution is that: the water pump is started by an external power source, and the high-concentration sodium chloride wastewater inside the wastewater tank is pumped into the tank, and then discharged to the interior of the heating tank through the output pipe.

[0013] In a preferred embodiment, a water pump is fixedly installed on the top of the base plate, the short pipe is fixedly installed at the input end of the water pump, an output pipe is fixedly installed at the output end of the short pipe, and one end of the output pipe is fixedly installed inside the heating tank.

[0014] The technical advantage of adopting the above-mentioned further solution is that it can transport high-concentration sodium chloride wastewater.

[0015] In a preferred embodiment, a second limiting ring is fixedly installed on one side of the connecting flange, and a filter screen is fixedly installed on one side of the thick pipe. The filter screen is detachably installed on the opposite surfaces of the first limiting ring and the second limiting ring.

[0016] The technical advantages of adopting the above-mentioned further solution are: the connecting flange and the thick pipe can be disassembled, and the filter screen can be limited by the screw connection, the limiting ring one and the limiting ring two, and the connecting flange and the thick pipe clamp the filter screen, which can realize disassembly and installation.

[0017] In a preferred embodiment, a slag discharge pipe is fixedly installed on the side of the heater near its bottom, and a one-way valve is provided on the outer surface of the slag discharge pipe. A sensor is provided on the top of the compressor body, a thermometer is provided on the top of the compressor body, and a sensor is provided on the top of the compressor body.

[0018] The technical effect of adopting the above-mentioned further solution is that water vapor condenses inside the heater to form water vapor, and then the water inside the heater is discharged through the slag discharge pipe by rotating the one-way valve.

[0019] On the other hand, the operating principle of a steam compressor for a plate evaporator includes the following steps: S1. The water pump is started by an external power source to draw high-concentration sodium chloride wastewater from the wastewater tank into the heating tank. The wastewater is then discharged through the outlet pipe to the heating tank. The heater is then started to heat the heating tank, and the high-concentration sodium chloride wastewater will generate water vapor after heating. S2. By starting the drive mechanism, the drive mechanism drives the transmission shaft at the output end to rotate. The compression mechanism inside the transmission shaft rotates and draws water vapor from inside the heating tank through a long pipe. The water vapor enters the compressor body through the connecting flange and thick pipe. After the water vapor is compressed, it is output to the heater through the recovery pipe. This can further heat the heating tank and realize the circulation of water vapor. The rotation speed of the transmission shaft can be controlled in real time by setting sensors, thermometers and sensors to adjust the temperature, speed and material feeding and discharging. The water vapor enters the heater through the recovery pipe to heat the heating tank. S3. The residue from high-concentration sodium chloride wastewater will settle inside the separator. By turning one-way valve one, the circulation pump is started to extract the residue from inside the separator through the bend pipe and output it through the pipeline to the inside of the dryer for drying. The steam transfers heat to the heater through the recovery pipe and is cooled back into clean liquid water, which settles at the bottom of the compressor body. By turning one-way valve two, the liquid water inside the heater is discharged and collected.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this embodiment of the invention, after the water vapor is compressed, it is output to the interior of the heater through the recovery pipe, which can further heat the heating tank to achieve water vapor circulation. The rotation speed of the drive shaft can be controlled in real time by the set sensors, thermometers and sensors to adjust the temperature, speed and material feeding and discharging to prevent blockage. The residue of high-concentration sodium chloride wastewater will be deposited inside the separator. By turning the one-way valve one, the circulation pump is started to draw out the residue inside the separator through the bend pipe and output it to the interior of the dryer for drying. After the steam transfers heat to the heater through the recovery pipe, it cools down and turns back into clean liquid water, which is deposited at the bottom of the compressor body. By turning the one-way valve two, the liquid water inside the heater is discharged and collected for reuse.

[0021] 2. In this embodiment of the invention, a water pump is first started by an external power source to pump high-concentration sodium chloride wastewater from the wastewater tank into the tank. The wastewater is then output to the heating tank through an output pipe. The heater is then started to heat the heating tank. After heating, the high-concentration sodium chloride wastewater will generate water vapor. The drive mechanism is then started, which drives the transmission shaft at the output end to rotate. At this time, the compression mechanism inside the transmission shaft rotates, drawing water vapor from the heating tank through a long pipe. The water vapor then enters the compressor body through a connecting flange and a thick pipe. Before entering the compressor body, the water vapor passes through a filter screen to filter impurities, reducing impurities and preventing blockage inside the compressor body.

[0022] 3. In this embodiment of the invention, the connecting flange and the thick pipe can be disassembled. They are connected by screws. The first and second limiting rings can limit the filter screen. The connecting flange and the thick pipe clamp the filter screen, which can be disassembled and installed. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a steam compressor for a plate evaporator and its operating principle provided by the present invention; Figure 2 A side structural schematic diagram of a steam compressor for a plate evaporator and its operating principle provided by the present invention; Figure 3 A top view schematic diagram of a steam compressor for a plate evaporator and its operating principle provided by the present invention; Figure 4 A schematic diagram of a steam compressor for a plate evaporator and its operating principle, including sensors and thick pipe structure, provided by the present invention. Figure 5 A side view of the sensor and thick tube structure of a steam compressor for a plate evaporator provided by the present invention and its operating principle; Figure 6A top-view plan view of a steam compressor for a plate evaporator and its operating principle provided by the present invention.

[0024] Legend: 101. Base plate; 102. Compressor body; 103. Drive mechanism; 104. Drive shaft; 105. Sensor; 106. Thermometer; 107. Sensor; 108. Thick pipe; 109. Connecting flange; 110. Filter screen; 111. Long pipe; 112. Heater; 113. Wastewater tank; 114. Water pump; 115. Short pipe; 116. Output pipe; 117. Heating tank; 118. Separator; 119. One-way valve I; 120. Bend; 121. Circulation pump; 122. Dryer; 123. Limit ring I; 124. Slag discharge pipe; 125. One-way valve II; 126. Recovery pipe; 127. Limit ring II. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 6 This embodiment provides a technical solution: a steam compressor for a plate evaporator, comprising: a base plate 101, a limiting ring 123, and a heater 112. A drive mechanism 103 is fixedly installed on the top of the base plate 101, and a transmission shaft 104 is fixedly installed at the output end of the drive mechanism 103. A compressor body 102 is fixedly installed on the top of the base plate 101. The transmission shaft 104 rotates in the compressor body 102, driving the internal compression mechanism to rotate for compressing steam. A thick pipe 108 is fixedly installed on one side of the compressor body 102, and a connecting flange 109 is detachably connected to one end of the thick pipe 108. A long pipe 111 is fixedly installed at one end of the connecting flange 109. A heater 112 is fixedly installed on the top of the base plate 101, and a heating tank 117 is provided on the top of the heater 112. The long pipe 111 is fixedly installed on the top of the heating tank 117. A recovery pipe 126 is fixedly installed on one side of the heater 112, and one end of the recovery pipe 126 is fixedly installed at the output end of the compressor body 102.

[0027] In use, the heater 112 is started to heat the heating tank 117. After heating, the high-concentration sodium chloride wastewater will generate water vapor. Then, the drive mechanism 103 is started, which drives the transmission shaft 104 at the output end to rotate. At this time, the compression mechanism inside the transmission shaft 104 rotates, and the water vapor inside the heating tank 117 is extracted through the long pipe 111. Then, it enters the compressor body 102 through the connecting flange 109 and the thick pipe 108. After the water vapor is compressed, it is output to the heater 112 through the recovery pipe 126, which can further heat the heating tank 117 to achieve water vapor circulation. The rotation speed of the transmission shaft 104 can be controlled in real time by the set sensor 105, thermometer 106 and sensor 107 to adjust the temperature, speed and material feeding and discharging. The steam is output to the heater 112 through the recovery pipe 126 to further heat the heating tank 117 to achieve circulation. After the water vapor enters the heater 112 and is heated, it will condense into water after a certain period of time.

[0028] like Figures 1 to 6 As shown, in one embodiment, a separator 118 is fixedly installed at the bottom of the heating tank 117, a one-way valve 119 is provided at the bottom of the separator 118, and a bend 120 is fixedly installed at the bottom of the separator 118. The residue of high-concentration sodium chloride wastewater will be deposited inside the separator 118, and the one-way valve 119 is rotated.

[0029] like Figures 1 to 6 As shown, in one embodiment, a circulation pump 121 is fixedly installed on the top of the base plate 101, one end of the bend 120 is fixedly installed on the input end of the circulation pump 121, and a dryer 122 is fixedly installed on the top of the base plate 101. By starting the circulation pump 121, the residue inside the separator 118 is extracted through the bend 120 and then output through the pipeline to the inside of the dryer 122 for drying.

[0030] like Figures 1 to 6 As shown, in one embodiment, the output end of the circulating pump 121 is connected to the inside of the dryer 122 through a pipe. A wastewater tank 113 is fixedly installed on the top of the base plate 101. A short pipe 115 is fixedly installed on the side of the wastewater tank 113 near its bottom. The water pump 114 is started by an external power source to pump the high-concentration sodium chloride wastewater inside the wastewater tank 113 into the interior, and then output to the interior of the heating tank 117 through the output pipe 116.

[0031] like Figures 1 to 6 As shown, in one embodiment, a water pump 114 is fixedly installed on the top of the base plate 101, a short pipe 115 is fixedly installed at the input end of the water pump 114, and an output pipe 116 is fixedly installed at the output end of the short pipe 115. One end of the output pipe 116 is fixedly installed inside the heating tank 117, which can transport high-concentration sodium chloride wastewater.

[0032] like Figures 1 to 6 As shown, in one embodiment, a limiting ring 127 is fixedly installed on one side of the connecting flange 109, and a filter screen 110 is fixedly installed on one side of the thick pipe 108. The filter screen 110 is detachably installed on the opposite surfaces of the limiting ring 123 and the limiting ring 127. The connecting flange 109 and the thick pipe 108 can be disassembled and connected by screws. The limiting ring 123 and the limiting ring 127 can limit the filter screen 110. The connecting flange 109 and the thick pipe 108 clamp the filter screen 110, which can be disassembled and installed.

[0033] like Figures 1 to 6 As shown, in one embodiment, a slag discharge pipe 124 is fixedly installed on the side of the heater 112 near its bottom. A one-way valve 125 is provided on the outer surface of the slag discharge pipe 124. A sensor 105, a thermometer 106, and a sensor 107 are provided on the top of the compressor body 102. Water vapor condenses inside the heater 112 to form water vapor, and then the water inside the heater 112 is discharged through the slag discharge pipe 124 by rotating the one-way valve 125.

[0034] On the other hand, the operating principle of a steam compressor for a plate evaporator includes the following steps: S1. The water pump 114 is started by an external power source. The high-concentration sodium chloride wastewater inside the wastewater tank 113 is pumped into the tank by the water pump 114 and discharged into the heating tank 117 through the output pipe 116. The heater 112 is started to heat the heating tank 117. After heating, the high-concentration sodium chloride wastewater will generate water vapor. S2. By starting the drive mechanism 103, the drive mechanism 103 drives the transmission shaft 104 at the output end to rotate. The compression mechanism inside the transmission shaft 104 rotates and draws water vapor from the heating tank 117 through the long pipe 111. The water vapor enters the compressor body 102 through the connecting flange 109 and the thick pipe 108. After the water vapor is compressed, it is output to the heater 112 through the recovery pipe 126. This can further heat the heating tank 117 and realize the circulation of water vapor. The rotation speed of the transmission shaft 104 can be controlled in real time by the set sensor 105, thermometer 106 and sensor 107 to adjust the temperature, speed and material feeding and discharging. The water vapor enters the heater 112 through the recovery pipe 126 to heat the heating tank 117. S3. The residue from high-concentration sodium chloride wastewater will settle inside the separator 118. By turning the one-way valve 119, the circulation pump 121 is started to extract the residue from inside the separator 118 through the bend pipe 120 and output it through the pipeline to the dryer 122 for drying. The steam transfers heat to the heater 112 through the recovery pipe 126 and then cools back into clean liquid water, which settles at the bottom of the compressor body 102. By turning the one-way valve 125, the liquid water inside the heater 112 is discharged and collected.

[0035] Working Principle: In operation, the water pump 114 is first started by an external power source, drawing high-concentration sodium chloride wastewater from the wastewater tank 113 into the tank. The wastewater is then output through the output pipe 116 to the heating tank 117. The heater 112 then heats the heating tank 117, generating steam. The drive mechanism 103 then rotates the output shaft 104, causing the internal compression mechanism to rotate. This steam is drawn from the heating tank 117 through the long pipe 111 and then enters the compressor body 102 through the connecting flange 109 and the thick pipe 108. Before entering the compressor body 102, the steam passes through a filter screen 110, filtering impurities and preventing blockages. After compression, the steam is output through the recovery pipe 126 to the heater 112, further heating the heating tank 117 and achieving steam circulation. The rotation speed of the drive shaft 104 can be controlled in real time by the set sensor 105, thermometer 106, and sensor 107 to adjust the temperature, speed, and material feeding and discharging, preventing blockage. Water vapor enters the heater 112 through the recovery pipe 126 for secondary heating. The residue of high-concentration sodium chloride wastewater will be deposited inside the separator 118. By turning the one-way valve 119, the circulation pump 121 is started to draw out the residue inside the separator 118 through the bend pipe 120 and output it through the pipeline to the dryer 122 for drying. After the steam transfers heat to the heater 112 through the recovery pipe 126, it cools back into clean liquid water and settles at the bottom of the compressor body 102. The liquid water inside the heater 112 is discharged by rotating the one-way valve 125 and can be collected for reuse. The connecting flange 109 and the thick pipe 108 can be disassembled and connected by screws. The first limit ring 123 and the second limit ring 127 can limit the filter screen 110. The connecting flange 109 and the thick pipe 108 clamp the filter screen 110, which can be disassembled and installed.

[0036] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A steam compressor for a plate evaporator, comprising: The base plate (101), the limiting ring (123), and the heater (112) are characterized in that a drive mechanism (103) is fixedly installed on the top of the base plate (101), a transmission shaft (104) is fixedly installed on the output end of the drive mechanism (103), a compressor body (102) is fixedly installed on the top of the base plate (101), the transmission shaft (104) rotates on the compressor body (102) to drive its internal compression mechanism to rotate for compressing steam, and a coarse pipe (108) is fixedly installed on one side of the compressor body (102). One end of the pipe (108) is detachably connected to a connecting flange (109), and a long pipe (111) is fixedly installed at one end of the connecting flange (109). A heater (112) is fixedly installed on the top of the base plate (101), and a heating tank (117) is provided on the top of the heater (112). The long pipe (111) is fixedly installed on the top of the heating tank (117). A recovery pipe (126) is fixedly installed on one side of the heater (112), and one end of the recovery pipe (126) is fixedly installed at the output end of the compressor body (102).

2. A steam compressor for a plate evaporator according to claim 1, characterized in that: A separator (118) is fixedly installed at the bottom of the heating tank (117), a one-way valve (119) is provided at the bottom of the separator (118), and a bent pipe (120) is fixedly installed at the bottom of the separator (118).

3. A steam compressor for a plate evaporator according to claim 2, characterized in that: A circulation pump (121) is fixedly installed on the top of the base plate (101), one end of the bend (120) is fixedly installed on the input end of the circulation pump (121), and a dryer (122) is fixedly installed on the top of the base plate (101).

4. A steam compressor for a plate evaporator according to claim 3, characterized in that: The output end of the circulating pump (121) is connected to the inside of the dryer (122) through a pipe. A wastewater tank (113) is fixedly installed on the top of the base plate (101), and a short pipe (115) is fixedly installed on the side of the wastewater tank (113) near its bottom.

5. A steam compressor for a plate evaporator according to claim 4, characterized in that: A water pump (114) is fixedly installed on the top of the base plate (101), and the short pipe (115) is fixedly installed at the input end of the water pump (114).

6. A steam compressor for a plate evaporator according to claim 5, characterized in that: An output pipe (116) is fixedly installed at the output end of the short pipe (115), and one end of the output pipe (116) is fixedly installed inside the heating tank (117).

7. A steam compressor for a plate evaporator according to claim 6, characterized in that: A limiting ring 2 (127) is fixedly installed on one side of the connecting flange (109), and a filter screen (110) is fixedly installed on one side of the thick pipe (108).

8. A steam compressor for a plate evaporator according to claim 7, characterized in that: A filter screen (110) can be detachably installed on the opposite surfaces of the first limiting ring (123) and the second limiting ring (127).

9. A steam compressor for a plate evaporator according to claim 8, characterized in that: A slag discharge pipe (124) is fixedly installed on one side of the heater (112) near its bottom. A one-way valve (125) is provided on the outer surface of the slag discharge pipe (124). A sensor (105) is provided on the top of the compressor body (102). A thermometer (106) is provided on the top of the compressor body (102). A sensor (107) is provided on the top of the compressor body (102).

10. The operating principle of a steam compressor for a plate evaporator, as described in any one of claims 1-9, characterized in that... Includes the following steps: S1. Start the water pump (114) with an external power source to pump the high-concentration sodium chloride wastewater from the wastewater tank (113) into the tank, and output it to the heating tank (117) through the output pipe (116). Start the heater (112) to heat the heating tank (117). After heating, the high-concentration sodium chloride wastewater will generate water vapor. S2. By starting the drive mechanism (103), the drive mechanism (103) drives the transmission shaft (104) at the output end to rotate. The compression mechanism inside the transmission shaft (104) rotates and extracts water vapor from the heating tank (117) through the long pipe (111). It enters the compressor body (102) through the connecting flange (109) and the thick pipe (108). After the water vapor is compressed, it is output to the heater (112) through the recovery pipe (126) to further heat the heating tank (117) and realize the circulation of water vapor. The rotation speed of the transmission shaft (104) can be controlled in real time by the set sensor (105), thermometer (106) and sensor (107) to adjust the temperature, speed and feed in and out. The water vapor enters the heater (112) through the recovery pipe (126) to heat the heating tank (117). S3. The residue of high-concentration sodium chloride wastewater will be deposited inside the separator (118). By turning the one-way valve (119), the circulation pump (121) will be started to extract the residue inside the separator (118) through the bend pipe (120) and output it through the pipeline to the dryer (122) for drying. After the steam transfers heat to the heater (112) through the recovery pipe (126), it cools back into clean liquid water and deposits at the bottom of the compressor body (102). By turning the one-way valve (125), the liquid water inside the heater (112) is discharged and collected.

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