A plate heat exchanger for heat exchange between gas and water

Abstract

The present invention discloses a plate heat exchanger for heat exchange between gas and water, and relates to the field of heat exchange. The following scheme is proposed, which includes: a plate body, the plate body includes a plurality of first-class plates and second-class plates, the plurality of the first-class plates and the second-class plates are arranged alternately, a gas flow chamber is formed between one side of the first-class plates and the second-class plates, a liquid flow chamber is formed between the other side of the first-class plates and the second-class plates, and the outer surface of the first-class plates is rotatably connected with a first guide block and a second guide block; a driving mechanism is assembled on the first-class plates, and the driving mechanism is used to control the adjustment angle of the first guide block and the second guide block to control the gas flow speed. By rotating the first guide block and the second guide block on the surface of the first-class plate, and controlling the rotation of the first guide block and the second guide block by the driving mechanism, the size of the flow channel is changed to target the characteristics of different gases and liquids, thereby improving the heat exchange rate.

Description

Technical Field

[0001] The invention relates to the field of heat exchange, and in particular to a plate heat exchanger used for heat exchange between gas and water. Background Art

[0002] Plate heat exchangers are mainly composed of multiple plates arranged closely together and are widely used in industrial production;

[0003] For example, a plate heat exchanger disclosed in publication number CN119268415A includes a plate body 1, a plurality of guide pillars fixed to one side of the plate body 1, a plate body 2 movably sleeved on the outside of the guide pillars, and a heat exchange plate located between the plate body 1 and the plate body 2, wherein one side of the plate body 1 is connected to a vertical mounting assembly, and the vertical mounting assembly includes a support pillar fixed to one side of the plate body 1, a rotating seat rotatably sleeved on the outside of the support pillar, two lower side plates symmetrically fixed to the upper end of the rotating seat, two upper side plates respectively fixed to the upper ends of the two lower side plates, and a guide portion fixed to one side of the two upper side plates and the two lower side plates;

[0004] This patent is applied to heat exchange between gas and water. If the gas temperature, gas flow rate, gas viscosity, liquid flow rate or liquid temperature are different, different flow channel designs will affect the heat exchange conversion rate. However, the current plate heat exchanger has a fixed flow channel size and cannot be adjusted, so it cannot be flexibly adjusted according to the characteristics of different gases and liquids. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a plate heat exchanger for heat exchange between gas and water, so as to achieve flexible adjustment according to the characteristics of different gases and liquids and improve the heat exchange rate.

[0006] In order to achieve the above technical objectives, the present invention provides a plate heat exchanger for heat exchange between gas and water:

[0007] It includes: a plate body, the plate body includes a plurality of first-class plates and second-class plates, the plurality of first-class plates and second-class plates are arranged alternately, a gas flow chamber is formed between one side of the first-class plates and the second-class plates, a liquid flow chamber is formed between the other side of the first-class plates and the second-class plates, the outer surface of the first-class plates is rotatably connected with a first guide block and a second guide block; a driving mechanism, assembled on the first-class plates, the driving mechanism is used to control the adjustment angles of the first guide block and the second guide block to control the gas flow speed.

[0008] Preferably, it also includes: a collection module, mounted on the plate body, for collecting heat exchange data; an adjustment module, for inputting the heat exchange data into a trained flow channel adjustment model and outputting an angle value, which serves as an adjustment parameter of the drive mechanism.

[0009] Preferably, a flow channel is opened on the outer surface of the first type of plate, the first guide block and the second guide block are both rotatably connected in the flow channel, and the first guide block and the second guide block are arranged opposite to each other.

[0010] Preferably, a cavity is opened inside the first type of plate, an adjustment rod is provided in the cavity, a first transmission gear is fixed at the connection point between the first guide block and the first type of plate, and a second transmission gear is fixed at the connection point between the second guide block and the first type of plate.

[0011] Preferably, the outer surface of the adjusting rod is fixed with a first rack and a second rack, both of which are slidably connected to a type of plate, and the first rack and the second rack are distributed up and down on both sides of the first transmission gear, and the first rack is meshed with the second transmission gear; the second rack is meshed with the first transmission gear.

[0012] Preferably, a push-pull rod is fixed to the outer surface of the adjusting rod, and the push-pull rod passes through a type of plate and is slidingly and sealingly connected to a type of plate. A spiral groove is provided on the outer surface of the end of the push-pull rod, and an inner spiral sleeve is sleeved on the outer surface of the push-pull rod, and the inner spiral sleeve is rotatably connected to a type of plate, and a worm gear is sleeved on the outer surface of the inner spiral sleeve.

[0013] Preferably, the driving mechanism includes: a worm, meshing with a worm wheel; a motor, with a driving gear fixed to the output end, the driving gear meshing with a driven gear, and the driven gear fixed to the end of the worm; a connecting block fixed to the plate body, the worm is rotatably connected to the connecting block, and the motor is fixed to the connecting block.

[0014] Preferably, a first sealing gasket and a second sealing gasket are respectively attached to two sides of the type of plate.

[0015] Preferably, the first end plate and the second end plate are respectively attached to both sides of the plate body, and the outer peripheral surfaces of the first end plate and the second end plate are fixed with connecting ears, a connecting rod is penetrated through the connecting ear, and the first end plate and the second end plate are fixedly connected by the connecting ear, and the outer surface of the connecting ear is fixed with a liquid inlet flange, a liquid outlet flange, an air inlet flange and an air outlet flange.

[0016] Preferably, the training method of the flow channel regulation model comprises:

[0017] Collecting i groups of historical heat exchange characteristic data and adjustment values ​​corresponding to the historical heat exchange characteristic data, where i is an integer greater than 1;

[0018] The historical heat exchange characteristic data and the adjustment values ​​corresponding to the historical heat exchange characteristic data are taken as a sample set, and the sample set is divided into a training set and a test set. The historical heat exchange characteristic data in the training set is taken as the input of the flow channel regulation model, and the adjustment values ​​in the training set are taken as the output of the flow channel regulation model. The flow channel regulation model is trained, and a flow channel regulation model that meets the preset accuracy is output. The flow channel regulation model is a naive Bayes model or a support vector machine model.

[0019] It can be seen from the above technical solutions that the present application has the following beneficial effects:

[0020] 1: The first guide block and the second guide block are connected by rotating on the surface of a type of plate, and the rotation of the first guide block and the second guide block is controlled by a driving mechanism, so as to change the size of the flow channel to target the characteristics of different gases and liquids and improve the heat exchange rate.

[0021] 2: The heat exchange data is collected by assembling a collection module on the plate, and the heat exchange data is input into the trained flow channel adjustment model to output the angle value, so that the angle value is used as the adjustment parameter of the driving mechanism, so as to change the flow channel size in real time according to the characteristics of different gases and liquids, thereby further improving the heat exchange rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the overall structure of a plate heat exchanger for heat exchange between gas and water provided by the present invention;

[0024] Figure 2 A schematic diagram of an exploded structure of a plate heat exchanger for heat exchange between gas and water provided by the present invention;

[0025] Figure 3 A schematic diagram of a partial cross-sectional structure of a type of plate of a plate heat exchanger for heat exchange between gas and water provided by the present invention;

[0026] Figure 4 A schematic diagram of the overall structure of a first end plate of a plate heat exchanger for heat exchange between gas and water provided by the present invention;

[0027] Figure 5 A schematic diagram of the overall structure of a driving mechanism of a plate heat exchanger for heat exchange between gas and water provided by the present invention;

[0028] Figure 6 A schematic diagram of the overall structure of a first rack and a second rack of a plate heat exchanger for heat exchange between gas and water provided by the present invention.

[0029] Figure 7 This is a schematic diagram of the flow channel adjustment model structure provided by the present invention.

[0030] Description of the drawings: 1. Class I plate; 11. flow channel; 12. first guide block; 121. first transmission gear; 13. second guide block; 131. second transmission gear; 14. cavity; 15. adjusting rod; 151. push-pull rod; 1511. spiral groove; 1512. inner spiral sleeve; 1513. worm gear; 152. first rack; 153. second rack; 2. Class II plate; 3. first sealing gasket; 4. second sealing gasket; 5. first end plate; 51. connecting ear; 52. connecting rod; 53a. liquid inlet flange; 53b. liquid outlet flange; 54a. air inlet flange; 54b. air outlet flange; 6. second end plate; 7. driving mechanism; 71. worm; 711. driven gear; 72. motor; 721. driving gear; 73. connecting block; 8. acquisition module. DETAILED DESCRIPTION

[0031] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0032] Example 1, see Figure 1 and Figure 2 As shown, a plate heat exchanger for heat exchange between gas and water comprises a plate body, the plate body comprises a plurality of first-class plates 1 and second-class plates 2, the plurality of first-class plates 1 and second-class plates 2 are arranged alternately, a gas flow chamber is formed between one side of the first-class plate 1 and the second-class plate 2, a liquid flow chamber is formed between the other side of the first-class plate 1 and the second-class plate 2, a first sealing gasket 3 and a second sealing gasket 4 are respectively attached to both sides of the first-class plate 1, so as to improve the sealing performance between the first-class plate 1 and the second-class plate 2; four holes are opened at the four corners of the plate body, and two holes adjacent to each other are respectively used for liquid inlet and outlet, and gas inlet and outlet;

[0033] For details, see Figure 1 and Figure 2As shown, the first end plate 5 and the second end plate 6 are respectively attached to both sides of the plate body, and the outer peripheral surfaces of the first end plate 5 and the second end plate 6 are fixed with connecting ears 51, and a connecting rod 52 is provided through the connecting ear 51. The first end plate 5 and the second end plate 6 are fixedly connected by the connecting ear 51, so that multiple type I plates 1 and type II plates 2 are fixed, and the outer surface of the connecting ear 51 is fixed with a liquid inlet flange 53a, a liquid outlet flange 53b, an air inlet flange 54a and an air outlet flange 54b.

[0034] Exemplarily, liquid enters the plate body through the liquid inlet flange 53a, fills multiple liquid flow chambers, and is finally discharged through the liquid outlet flange 53b. Gas enters through the gas inlet flange 54a, fills multiple gas flow chambers, and is finally discharged through the gas outlet flange 54b, so that heat exchange between gas and liquid is achieved. For example, if the temperature of the gas initially entering the plate body is greater than the liquid temperature, then the temperature of the discharged liquid will eventually rise.

[0035] For further information, see Figure 2 , Figure 3 and Figure 4 As shown, a flow channel 11 is provided on the outer surface of the first type of plate 1, so that a gas flow cavity or a liquid flow cavity is formed between the first type of plate 1 and the second type of plate 2 through the flow channel 11, and the first guide block 12 and the second guide block 13 are both rotatably connected in the flow channel 11, and the first guide block 12 and the second guide block 13 are arranged opposite to each other.

[0036] Specifically, the speed of the flow diversion can be controlled by rotating the two blocks toward each other. For example, if the first guide block 12 and the second guide block 13 are closer to each other, the channel for gas or liquid to flow between the two blocks is reduced, thereby reducing the flow rate. Otherwise, the flow rate is increased. For example, if the concentration of the gas to be exchanged is high and its own fluidity is poor, the first guide block 12 and the second guide block 13 can be adjusted to be farther apart to compensate for the insufficient flow rate due to the high gas concentration.

[0037] It is worth mentioning that the specific shapes of the first guide block 12 and the second guide block 13 can be determined by technicians in the field according to actual conditions and are not specifically limited here.

[0038] See also Figure 3 , Figure 4 and Figure 6As shown, a cavity 14 is provided inside the first type of plate 1. In this embodiment, the cavity 14 is filled with a heat exchange medium, such as heat transfer oil, to ensure the heat exchange effect. An adjusting rod 15 is provided in the cavity 14. A first transmission gear 121 is fixed to the connection point between the first guide block 12 and the first type of plate 1, and a second transmission gear 131 is fixed to the connection point between the second guide block 13 and the first type of plate 1; a first rack 152 and a second rack 153 are fixed to the outer surface of the adjusting rod 15. The first rack 152 and the second rack 153 are both slidably connected to the first type of plate 1, and the first rack 152 and the second rack 153 are distributed up and down on both sides of the first transmission gear 121, and the first rack 152 is meshed with the second transmission gear 131; the second rack 153 is meshed with the first transmission gear 121;

[0039] Exemplarily, by sliding the adjustment rod 15 in a type of plate 1, the first rack 152 and the second rack 153 can be driven to respectively drive the first transmission gear 121 and the second transmission gear 131 to rotate, thereby driving the first guide block 12 and the second guide block 13 to rotate, and the rotation directions are opposite, thereby achieving opposite rotation or opposite rotation;

[0040] For further information, see Figure 1 , Figure 4 and Figure 5 As shown, the driving mechanism 7 is mounted on a type of plate 1, and the driving mechanism 7 is used to control the first guide block 12 and the second guide block 13 to adjust the angle to control the gas flow speed;

[0041] Specifically, a push-pull rod 151 is fixed to the outer surface of the adjusting rod 15, and the push-pull rod 151 passes through a type of plate 1 and is slidingly and sealingly connected to the type of plate 1. A spiral groove 1511 is opened on the outer surface of the end of the push-pull rod 151, and an inner spiral sleeve 1512 is sleeved on the outer surface of the push-pull rod 151, and the inner spiral sleeve 1512 is rotatably connected to the type of plate 1, and a worm gear 1513 is sleeved on the outer surface of the inner spiral sleeve 1512; the purpose is that by rotating the inner spiral sleeve 1512, the inner spiral inside the worm gear 1513 can be used to push the spiral groove 1511. Since the push-pull rod 151 is fixed on the adjusting rod 15 and the adjusting rod 15 is slidably connected to the type of plate 1, the push-pull rod 151 cannot rotate together with the inner spiral sleeve 1512, thereby driving the adjusting rod 15 to slide in the type of plate 1.

[0042] Furthermore, the driving mechanism 7 includes: a worm 71, which is meshed with a worm wheel 1513; a motor 72, at the output end of which a driving gear 721 is fixed, the driving gear 721 is meshed with a driven gear 711, and the driven gear 711 is fixed to the end of the worm 71; a connecting block 73, which is fixed to the plate body, the worm 71 is rotatably connected to the connecting block 73, and the motor 72 is fixed to the connecting block 73; the driving gear 721 is driven to rotate by the motor 72, so that the driving gear 721 drives the worm 71 to rotate through the driven gear 711, and the worm 71 can drive the inner spiral sleeve 1512 to rotate through the worm wheel 1513.

[0043] Example 2, see Figure 7 As shown, a plate heat exchanger for heat exchange between gas and water, based on Example 1, further includes: a collection module 8 and an adjustment module. The collection module 8 is assembled on the plate body and is used to collect heat exchange data. In this embodiment, the collection module 8 includes multiple collection units, such as flow sensors, temperature sensors, etc., which are specifically determined according to the type of heat exchange data collected and are not specifically limited here.

[0044] The adjustment module is used to input the heat exchange data into the trained flow channel adjustment model and output the angle value, which is used as the adjustment parameter of the driving mechanism 7. It is worth mentioning that the angle value is the rotation stroke of the motor 72. The specific linear relationship between the angle value and the rotation stroke is calculated by technicians in this field based on the model of the motor 72 used. The calculation method will not be elaborated here.

[0045] The training methods of the flow channel regulation model include:

[0046] i groups of historical heat exchange characteristic data and adjustment values ​​corresponding to the historical heat exchange characteristic data are collected, i is an integer greater than 1, and the heat exchange characteristic data include liquid flow, gas flow, liquid temperature, gas temperature, liquid concentration and gas concentration, that is, a plate body with multiple groups of historical heat exchange characteristic data is simulated under an experimental environment, and a plate body with the same historical heat exchange characteristic data is heat exchanged with different angle values, and then a person skilled in the art calculates the heat exchange rate, and a group of angle values ​​corresponding to the best heat exchange rate is selected by a person skilled in the art to correspond to the historical heat exchange characteristic data, and in this way, the plate body with different historical heat exchange characteristic data is changed to conduct experiments, and i groups of historical heat exchange characteristic data and angle values ​​corresponding to the historical heat exchange characteristic data can be obtained;

[0047] The historical heat exchange characteristic data and the adjustment values ​​corresponding to the historical heat exchange characteristic data are taken as a sample set, and the sample set is divided into a training set and a test set. The historical heat exchange characteristic data in the training set is taken as the input of the flow channel adjustment model, and the adjustment values ​​in the training set are taken as the output of the flow channel adjustment model. The flow channel adjustment model is trained, and a flow channel adjustment model that meets the preset accuracy is output. It should be noted that the standard of the preset accuracy is determined by technical personnel in this field according to actual conditions and is not specifically limited here. The flow channel adjustment model is a naive Bayes model or a support vector machine model.

[0048] The purpose of this embodiment is to adjust the first guide block 12 and the second guide block 13 in real time according to the characteristics of the gas and liquid being exchanged, thereby changing the flow rate of the gas or liquid in the flow channel 11 to achieve an optimal heat exchange rate. As more historical heat exchange characteristic data is collected and the flow channel regulation model is iteratively upgraded, the heat exchange rate of this embodiment will continue to be improved.

[0049] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. A plate heat exchanger for heat exchange between gas and water, characterized in that: include: A plate body, the plate body comprising a plurality of first-class plate sheets (1) and second-class plate sheets (2), the plurality of first-class plate sheets (1) and second-class plate sheets (2) being arranged alternately, a gas flow chamber being formed between one side of the first-class plate sheets (1) and the second-class plate sheets (2), a liquid flow chamber being formed between the other side of the first-class plate sheets (1) and the second-class plate sheets (2), and an outer surface of the first-class plate sheets (1) being rotatably connected with a first guide block (12) and a second guide block (13); A driving mechanism (7) is mounted on a type of plate (1), wherein the driving mechanism (7) is used to control the first guide block (12) and the second guide block (13) to adjust the angles so as to control the gas flow rate; The outer surface of the first type of plate (1) is provided with a flow channel (11), the first guide block (12) and the second guide block (13) are both rotatably connected in the flow channel (11), and the first guide block (12) and the second guide block (13) are arranged opposite to each other; A cavity (14) is provided inside the first type of plate (1), an adjusting rod (15) is provided inside the cavity (14), a first transmission gear (121) is fixed at a connection point between the first guide block (12) and the first type of plate (1), and a second transmission gear (131) is fixed at a connection point between the second guide block (13) and the first type of plate (1); A first rack (152) and a second rack (153) are fixed to the outer surface of the adjusting rod (15); the first rack (152) and the second rack (153) are both slidably connected to a type of plate (1); the first rack (152) and the second rack (153) are vertically distributed on both sides of the first transmission gear (121); the first rack (152) is meshed with the second transmission gear (131); and the second rack (153) is meshed with the first transmission gear (121); A push-pull rod (151) is fixed to the outer surface of the adjusting rod (15), the push-pull rod (151) passes through a type of plate (1) and is slidably sealed with the type of plate (1), a spiral groove (1511) is provided on the outer surface of the end of the push-pull rod (151), an inner spiral sleeve (1512) is sleeved on the outer surface of the push-pull rod (151), and the inner spiral sleeve (1512) is rotatably connected with the type of plate (1), and a worm gear (1513) is sleeved on the outer surface of the inner spiral sleeve (1512).

2. A plate heat exchanger for heat exchange between gas and water according to claim 1, characterized in that: Also includes: A collection module (8), mounted on the plate body, for collecting heat exchange data; The regulating module is used to input the heat exchange data into the trained flow channel regulating model and output an angle value, which is used as a regulating parameter of the driving mechanism (7).

3. A plate heat exchanger for heat exchange between gas and water according to claim 1, characterized in that: The driving mechanism (7) comprises: A worm (71) meshing with a worm wheel (1513); A motor (72), the output end of which is fixed with a driving gear (721), the driving gear (721) being meshed with a driven gear (711), and the driven gear (711) being fixed to the end of the worm (71); The connecting block (73) is fixed on the plate body, the worm (71) is rotationally connected to the connecting block (73), and the motor (72) is fixed on the connecting block (73).

4. A plate heat exchanger for heat exchange between gas and water according to claim 1, characterized in that: A first sealing gasket (3) and a second sealing gasket (4) are respectively attached to two sides of the first type of plate (1).

5. A plate heat exchanger for heat exchange between gas and water according to claim 1, characterized in that: A first end plate (5) and a second end plate (6) are respectively attached to the two sides of the plate body; connecting ears (51) are fixed to the outer circumferences of the first end plate (5) and the second end plate (6); a connecting rod (52) is provided through the connecting ear (51); the first end plate (5) and the second end plate (6) are fixedly connected via the connecting ear (51); and a liquid inlet flange (53a), a liquid outlet flange (53b), an air inlet flange (54a) and an air outlet flange (54b) are fixed to the outer surface of the connecting ear (51).

6. A plate heat exchanger for heat exchange between gas and water according to claim 2, characterized in that: The training method of the flow channel adjustment model includes: Collecting i groups of historical heat exchange characteristic data and adjustment values ​​corresponding to the historical heat exchange characteristic data, where i is an integer greater than 1; The historical heat exchange characteristic data and the adjustment values ​​corresponding to the historical heat exchange characteristic data are taken as a sample set, and the sample set is divided into a training set and a test set. The historical heat exchange characteristic data in the training set is taken as the input of the flow channel regulation model, and the adjustment values ​​in the training set are taken as the output of the flow channel regulation model. The flow channel regulation model is trained, and a flow channel regulation model that meets the preset accuracy is output. The flow channel regulation model is a naive Bayes model or a support vector machine model.

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