CN209945071U - Baffle plate heat exchanger with adjustable pitch - Google Patents
Baffle plate heat exchanger with adjustable pitch Download PDFInfo
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- CN209945071U CN209945071U CN201920426487.8U CN201920426487U CN209945071U CN 209945071 U CN209945071 U CN 209945071U CN 201920426487 U CN201920426487 U CN 201920426487U CN 209945071 U CN209945071 U CN 209945071U
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Abstract
The utility model relates to an adjustable pitch baffling board heat exchanger, including casing and head, its characterized in that casing one end links to each other with the head, be equipped with U type heat exchange tube in the casing, the head is cut apart into cold flow body and is advanced the head and go out the head with cold flow body, cold flow body advances the head and links to each other with cold flow body outlet pipe, heat exchange tube one end links to each other with cold flow body goes out the head, the other end advances the head with cold flow body and links to each other, be equipped with a plurality of spiral cycle baffling boards of group and a plurality of heat exchange tube in the casing, each spiral cycle baffling board of group includes the different baffling boards of a plurality of spiral circumference arrangements and phase place, the baffling board that the phase place is the same constitutes baffling board group, adjacent baffling board passes through the pull rod and supports, telescopic machanism links. The utility model provides a pitch adjustable baffling board heat exchanger between baffling board.
Description
Technical Field
The utility model relates to a heat exchanger especially relates to an adjustable pitch baffling board heat exchanger.
Background
Heat exchangers (also known as heat exchangers or heat exchange devices) are devices used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements, and are an industrial application of convective and conductive heat transfer. For this reason, many patents related to heat exchangers have been designed, for example, patent publication CN106288879A discloses a spiral baffle heat exchanger, which includes a heat exchanger shell with two ends fixedly connected with tube plates, a spiral annular baffle installed in the heat exchanger shell, a plurality of heat exchange tubes penetrating through the spiral annular baffle and connected with the tube plates at the two ends, end caps installed at the two ends of the heat exchanger shell, a liquid inlet and a liquid outlet installed on the side walls at the two ends of the heat exchanger shell, a core tube penetrating through the axis of the spiral annular baffle and connected with the tube plates at the two ends, an inlet and an outlet connected with the heat exchange tubes and the core tube being installed on the end caps, and is characterized in that a plurality of fins are installed on the plate surface along the spiral direction of the spiral.
The defects of the patent are as follows: the screw pitch between the baffle plates is fixed and can not be changed, and the screw pitch between the baffle plates can not be adjusted according to the actual use environment of the heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses mainly solve the pitch that prior art exists between the baffling board and can not change, can not adjust the technical problem of pitch etc. between the baffling board according to the heat exchanger actual use environment, provide one kind and can adjust the adjustable pitch baffling board heat exchanger of pitch between the baffling board according to the actual use environment.
The above technical problem of the present invention can be solved by the following technical solutions: a baffle plate heat exchanger with adjustable thread pitch comprises a shell and an end enclosure, and is characterized in that one end of the shell is connected with the end enclosure, a heat exchange tube is arranged in the shell and is of a U-shaped structure, the end enclosure divides the end enclosure into a cold fluid inlet end enclosure and a cold fluid outlet end enclosure in the circumferential direction through an end enclosure partition plate, the cold fluid inlet end enclosure is connected with a cold fluid inlet pipe, the cold fluid outlet end enclosure is connected with a cold fluid outlet pipe, one end of the heat exchange tube is connected with the cold fluid outlet end enclosure, the other end of the heat exchange tube is connected with the cold fluid inlet end enclosure, a plurality of groups of spiral periodic baffle plates and a plurality of heat exchange tubes which are longitudinally arranged are arranged in the shell, each group of spiral periodic baffle plates comprises a plurality of baffle plates which are arranged in the circumferential direction and have different phases, and the baffle plates and the longitudinal cross section of the heat exchange tube, the baffle plates with the same phase in the shell form a baffle plate group, two adjacent baffle plates in the same spiral periodic baffle plate are supported by a pull rod, the baffle plate group is supported by the same pull rod, two adjacent baffle plates on the same pull rod are connected by a telescopic mechanism, a pull rod hole in clearance fit with the pull rod is arranged on each baffle plate, the shell is connected with the liquid supply device, a pressure detection module is arranged in the shell, a temperature sensor is arranged at a hot fluid outlet pipe of the baffle plate heat exchanger with the adjustable screw pitch, the temperature sensor and the pressure detection module are connected with a control module, and the control module is connected with the telescopic mechanism and the liquid supply device. Cold fluid enters the cold fluid inlet end socket through the cold fluid inlet pipe, enters the heat exchange pipe, flows into the cold fluid outlet end socket through the heat exchange pipe, and finally flows out of the cold fluid outlet pipe, hot fluid flows into the hot fluid outlet pipe from the hot fluid inlet pipe and flows out of the hot fluid outlet pipe, the pressure detection module detects the pressure in the shell, the temperature sensor measures the temperature of the hot fluid outlet at the hot fluid outlet pipe in real time, detected data are continuously sent to the control module, the control module compares the detected temperature information with a hot fluid outlet critical value set in the control module after receiving the temperature information detected by the temperature sensor, if the detected real-time temperature of the hot fluid outlet is greater than a hot fluid outlet temperature critical value, the heat exchange coefficient in the shell is poor, in order to enhance the heat exchange coefficient in the shell, the pitch between baffle plates is adjusted into a total pitch reduction mode through the control module, so that the flow When the pressure detected by the pressure detection module is less than the set upper limit value of the shell pressure in the control module, the control module stops liquid supply of the liquid supply device and adjusts the distance between the baffle plates into a distance reduction mode, so that hot fluid does not flow into the shell any more, and the hot fluid in the shell flows away quickly to reduce the air pressure in the shell; if the detected outlet temperature of the hot fluid is less than the threshold value of the outlet temperature of the hot fluid, the heat exchange coefficient in the shell is large, and the problem of overlarge power required by the hot fluid pumped in exists, in order to enable the heat exchange coefficient and the optimal power required by the hot fluid pumped in, the pitch between the baffle plates is adjusted into a total pitch increasing mode through the control module, meanwhile, the baffle plates in the shell can be adjusted into various requirements which accord with the pitch mode to adapt to various complex operating conditions through the telescopic mechanisms between the baffle plates, and the following baffle plate pitch adjusting modes exist: 1. a single group or a plurality of groups of baffle plates in the same phase are shifted to the same direction by the same screw pitch through a telescopic mechanism so as to achieve the purpose of roughly adjusting the total screw pitch in a uniform screw pitch mode; 2. the baffle groups in a single group or a plurality of groups in the same spiral period are shifted to the same direction by the telescopic mechanism to achieve the purpose of roughly adjusting the total pitch in a uniform pitch mode; 3. the deflection plate groups in a single group or a plurality of groups in the same spiral period are changed in descending order or ascending order according to a certain pitch through the telescopic mechanism, so that the purpose of fine adjustment of the total pitch is realized by a variable pitch mode; 4. all the single baffle plates in the shell are shifted to any direction through the telescopic mechanism so as to achieve the purpose of fine adjustment of the total pitch in an unequal pitch mode, and in the mode process that the baffle plate groups are continuously switched to various composite pitches, the baffle plates are continuously moved so as to remove dirt stuck on the baffle plates, the heat exchange tubes and the pull rods, reduce the thermal resistance of the wall surfaces of the heat exchange tubes, increase the overall heat transfer efficiency of the heat exchanger, reduce the maintenance cost of the heat exchanger and prolong the service life of the heat exchanger.
Preferably, the helical periodic baffles of the same group are composed of three circumferentially and spirally uniformly arranged baffles.
Preferably, the shell in be equipped with the impingement plate with hot-fluid import pipe department correspondence, all the heat exchange tube constitute heat exchanger tube bank, the impingement plate encircle locate heat exchanger tube bank outside, pull rod cavity set up and be equipped with the asbestos layer in. The shell in with hot-fluid import pipe department correspond and be equipped with the impingement baffle, all the heat exchange tube constitute heat exchange tube bank, the impingement baffle encircle locate the outer effect of heat exchange tube bank reduce the direct impact that the hot-fluid produced to the heat exchange tube to increase heat exchange tube life, pull rod cavity set up the effect can arrange telescopic machanism and control module's relevant control scheme in the pull rod, the pull rod in be equipped with the effect on asbestos layer be used for thermal-insulated avoiding the heat exchanger in the fatal destruction of hot-fluid to relevant control scheme.
Preferably, the cold fluid outlet end socket is arranged on one side of the hot fluid inlet pipe, the cold fluid inlet end socket is arranged on one side of the hot fluid outlet pipe, and the volume of the cold fluid inlet end socket is larger than that of the cold fluid outlet end socket. Cold fluid and hot fluid enter from different sides to generate convection between the cold fluid and the hot fluid, so that the relative flow velocity between the cold fluid and the hot fluid is increased, the heat exchange coefficient is improved, and the heat exchange effect is enhanced. Because the volume of the cold fluid inlet end socket is larger than that of the cold fluid outlet end socket, and the contact areas of the two ends of the U-shaped heat exchange tube and the cold fluid inlet end socket and the cold fluid outlet end socket are the same, the flow speed of the cold fluid entering the rear section of the U-shaped heat exchange tube is smaller than that of the heat exchange tube after baffling and flowing out of the section of the heat exchange tube, and the hot fluid flows into the heat exchange tube at the side with larger flow speed and flows out of the heat exchange tube at the side with smaller flow speed, the heat exchange tube at the side with larger flow speed of the cold fluid in the shell has higher temperature of the hot fluid at the same time, so.
Preferably, the baffle plate is formed by splicing a folding lug supported by the pull rod, an inclined baffle plate with a certain inclination angle with the heat exchange tube and a circumferentially overlapped baffle plate, the folding lug is perpendicular to the pull rod, the baffle plate is of a fan-shaped structure, the folding lug is arranged at the bottom corner of the baffle plate and is semi-wrapped with the inclined baffle plate by the folding lug, and the baffle plate is provided with an elliptical hole in clearance fit with the heat exchange tube. If the material is hard and cannot be processed by a bending process, the baffle plate is processed by processes such as splicing and the like so as to ensure the accuracy of a relative angle and reduce the corresponding cost, the folded lug is vertically arranged with the pull rod, the baffle plate is provided with an elliptical hole which is in clearance fit with the heat exchange tube, so that the baffle plate is smoother in the moving process so as to avoid the phenomena of blockage and the like, fluid flows in an inclined baffle plate area in a pseudo-spiral oblique cutting heat conduction tube bundle mode, and flows in a way of vertically sweeping over the heat conduction tube bundle in a channel between the two baffle plates, the whole flow is approximately spiral, and the problem of a flowing dead zone possibly existing in the water-feeding heat exchanger with the arched baffle plate is solved.
Preferably, the pitch adjusting mechanism is a hydraulic telescopic device.
Preferably, the shell is uniformly distributed with thermoelectric generation pieces, the hot ends of the thermoelectric generation pieces face the shell, the thermoelectric generation pieces are connected with the shell through connecting metal, heat-conducting silicone grease is uniformly distributed among the connecting metal, the shell and the thermoelectric generation pieces, one end of the connecting metal, which is connected with the thermoelectric generation pieces, is a plane, and the other end of the connecting metal is a curved surface matched with the shell. Set up the heat that the purpose aim at of thermoelectric generation piece runs off at the heat exchanger surface and retrieve the heat in order to promote its whole heat utilization rate, will connect metal and casing through spot welding and link to each other for perfect laminating is in order to strengthen its thermoelectric generation efficiency between thermoelectric generation piece and casing.
Preferably, a pull rod fixing plate is arranged at one end, far away from the seal head, in the shell, the pull rod is connected with the pull rod fixing plate through one end of the telescopic mechanism, and the other end of the pull rod is connected with the tube plate through the telescopic mechanism. The baffle plates on the leftmost side and the rightmost side in the shell are connected with the tube plate and the pull rod fixing plate through the telescopic mechanisms and are used for fixing the baffle plates in the shell through the telescopic mechanisms at the two ends, and the phenomenon that the whole baffle plates in the shell are deviated due to the flowing of hot fluid in the heat exchange process is avoided.
The utility model discloses the beneficial effect who brings can adjust pitch between the flap baffling board according to operating condition, utilizes the cross-flow effect that the double-barrelled journey mechanism of heat exchange tube U-shaped produced to strengthen its heat transfer coefficient to promote an adjustable pitch flap baffling board heat exchanger of whole energy utilization through the thermoelectric generation piece.
Therefore, the utility model has the characteristics of rational structure, convenient use and the like.
Drawings
FIG. 1 is a schematic view of a fluid flow of the present invention;
FIG. 2 is a schematic structural diagram of a single group of spiral periodic baffles of the present invention;
fig. 3 is a cross-sectional view of the housing of the present invention;
fig. 4 is a cross-sectional view of the head of the present invention;
FIG. 5 is a sectional view of the thermoelectric generation chip of the present invention;
FIG. 6 is a schematic structural view of the baffle plate of the present invention;
FIG. 7 is a schematic diagram of a control module for controlling the pitch of the baffle according to the temperature of the hot fluid;
FIG. 8 is a schematic diagram of a control module for controlling the pitch of the baffle according to the pressure change in the housing;
description of part numbers in the figures: 1. the heat exchanger comprises a shell, a head, a heat exchange pipe, a cold fluid inlet head, a cold fluid outlet head, a cold fluid inlet pipe, a cold fluid outlet pipe, a baffle plate, a pull rod, a telescopic mechanism, a pull rod hole, a liquid supply device, a pressure detection module, a hot fluid outlet pipe, a temperature sensor, a control module, a baffle plate, an anti-impact plate, a hot fluid inlet pipe, a bent lug, a inclined baffle plate, a baffle plate, an elliptical hole, a temperature difference power generation sheet, a connecting metal, a heat conduction silicone grease, a pull rod fixing plate, a pipe plate and a head partition plate, wherein the cold fluid inlet pipe, the.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1:
the baffle plate heat exchanger with the adjustable pitch as shown in the figures 1 to 7 comprises a shell 1 and an end enclosure 2, and is characterized in that one end of the shell 1 is connected with the end enclosure 2, a U-shaped heat exchange tube 3 is arranged in the shell 1, the end enclosure 2 is circumferentially divided into a cold fluid inlet end enclosure 4 and a cold fluid outlet end enclosure 5 by an end enclosure partition plate 28, the cold fluid inlet end enclosure 4 is connected with a cold fluid inlet tube 6, the cold fluid outlet end enclosure 5 is connected with a cold fluid outlet tube 7, one end of the heat exchange tube 3 is connected with the cold fluid outlet end enclosure 5, the other end of the heat exchange tube is connected with the cold fluid inlet end enclosure 4, a plurality of groups of spiral periodic baffle plates and a plurality of heat exchange tubes 3 which are longitudinally arranged are arranged in the shell 1, each group of spiral baffle plates comprises a plurality of spiral periodic baffle plates 8 which are circumferentially arranged and have different phases, the baffle plates 8 and the longitudinal cross section of the heat exchange tube 3 form a certain inclination angle, the baffle plates 8 with the same phase in the shell 1 form a baffle plate 8 group, two adjacent baffle plates 8 in the same spiral periodic baffle plate are supported by a pull rod 9, the baffle plate 8 groups are all supported by the same pull rod 9, two adjacent baffle plates 8 on the same pull rod 9 are connected by a telescopic mechanism 10, the baffle plate 8 is provided with a pull rod hole 11 which is in clearance fit with the pull rod 9, the shell 1 is connected with the liquid supply device 12, a temperature sensor 15 is arranged at a hot fluid outlet pipe 14 of the baffle plate heat exchanger with adjustable pitch, the temperature sensor 15 is connected with a control module 16, and the control module 16 is connected with the telescopic mechanism 10 and the liquid supply device 12. Cold fluid enters a cold fluid inlet end socket 4 through a cold fluid inlet pipe 6, enters a heat exchange pipe 3, flows into a cold fluid outlet end socket 5 through the heat exchange pipe 3, and finally flows out through a cold fluid outlet pipe 7, hot fluid flows in from a hot fluid inlet pipe and flows out from a hot fluid outlet pipe 14, a temperature sensor 15 measures the temperature of the hot fluid outlet pipe 14 and continuously sends detected data to a control module 16, the control module 16 compares the detected temperature information with a temperature critical value set in the control module 16 after receiving the temperature information detected by the temperature sensor 15, if the detected real-time hot fluid outlet temperature is greater than a hot fluid outlet temperature threshold value, the heat exchange coefficient in the shell 1 is not good, in order to enhance the heat exchange coefficient in the shell 1, the pitch between baffle plates 8 is adjusted into a total pitch reduction mode through the control module so that the flow speed of the hot fluid in the shell 1 is increased to enhance the, if the detected outlet temperature of the hot fluid is less than the threshold value of the outlet temperature of the hot fluid, it indicates that the heat exchange coefficient in the shell 1 is large, and the problem of overlarge power required by the hot fluid pumped in exists, in order to make the heat exchange coefficient and the optimal power required by the hot fluid pumped in, the pitch of the baffle plates 8 is adjusted into a total pitch increasing mode through the control module 16, and meanwhile, the baffle plates 8 in the shell 1 can be adjusted into various requirements which accord with the pitch mode to adapt to various complex operation working conditions through the telescopic mechanism 10 among the baffle plates 8, and the following baffle plate 8 pitch adjusting modes exist: a single group or a plurality of groups of baffle plates 8 with the same phase shift the same pitch to the same direction through a telescopic mechanism 10, so as to achieve the purpose of roughly adjusting the total pitch in a uniform pitch mode; the single group or a plurality of groups of baffle plates 8 in the same spiral period are shifted to the same direction by the telescopic mechanism 10 to achieve the purpose of roughly adjusting the total pitch in a uniform pitch mode; the single group or a plurality of groups of baffle plates 8 in the same spiral period are changed in descending order or ascending order according to a certain pitch through the telescopic mechanism 10, so that the purpose of fine adjustment of the total pitch is realized by a variable pitch mode; all the single baffle plates 8 in the shell 1 are shifted to any direction through the telescopic mechanism 10 so as to achieve the purpose of fine adjustment of the total pitch in an unequal pitch mode, and in the mode process that the baffle plates 8 are continuously switched to various composite pitches, the baffle plates 8 are continuously moved so as to remove dirt adhered to the baffle plates 8, the heat exchange tubes 3 and the pull rods 9, reduce the thermal resistance of the wall surfaces of the heat exchange tubes 3, increase the overall heat transfer efficiency of the heat exchanger, reduce the maintenance cost of the heat exchanger and prolong the service life of the heat exchanger.
The spiral periodic baffle plates in the same group are composed of three baffle plates 8 which are spirally and uniformly arranged in the circumferential direction. The shell 1 in correspond with hot-fluid import pipe department and be equipped with impingement baffle 17, all heat exchange tube 3 constitute 3 bundles of heat exchange tubes, impingement baffle 17 encircle locate heat exchange tube 3 bundle outside, pull rod 9 cavity set up and be equipped with the asbestos layer in. The shell 1 is internally provided with an impingement plate 17 corresponding to the hot fluid inlet pipe, all the heat pipes form 3 bundles of heat exchange pipes, the impingement plate 17 is annularly arranged outside the 3 bundles of heat exchange pipes and is used for reducing direct impact of the hot fluid on the heat exchange pipes 3 so as to prolong the service life of the heat exchange pipes 3, the pull rod 9 is hollow and is used for arranging related control circuits of the telescopic mechanism 10 and the control module 16 in the pull rod 9, and the pull rod 9 is internally provided with an asbestos layer and is used for insulating heat and avoiding fatal damage of the hot fluid in the heat exchanger to the related control circuits.
The cold fluid outlet end socket 5 is arranged on one side of the hot fluid inlet pipe 18, the cold fluid inlet end socket 4 is arranged on one side of the hot fluid outlet pipe 14, and the volume of the cold fluid inlet end socket 4 is larger than that of the cold fluid outlet end socket 5. Cold fluid and hot fluid enter from different sides so as to enable the cold fluid and the hot fluid to generate convection, increase the relative flow velocity of the fluids and improve the heat exchange coefficient, thereby enhancing the heat exchange effect. Because the volume of the cold fluid inlet end socket is larger than that of the cold fluid outlet end socket, and the contact areas of the two ends of the U-shaped heat exchange tube and the cold fluid inlet end socket and the cold fluid outlet end socket are the same, the flow speed of the cold fluid entering the rear section of the U-shaped heat exchange tube is smaller than that of the heat exchange tube after baffling and flowing out of the section of the heat exchange tube, and the hot fluid flows into the heat exchange tube at the side with larger flow speed and flows out of the heat exchange tube at the side with smaller flow speed, the heat exchange tube at the side with larger flow speed of the cold fluid in the shell has higher temperature of the hot fluid at the same time, so.
The baffle plate 8 is formed by splicing a folded lug 19 supported by the pull rod 9, an inclined baffle plate 20 forming a certain inclination angle with the heat exchange tube 3 and a circumferential overlapped baffle plate 21, the folded lug 19 is perpendicular to the pull rod 9, the baffle plate 8 is of a fan-shaped structure, the folded lug 19 is arranged at the bottom corner of the baffle plate 8 and wraps the inclined baffle plate 20 with the folded lug 19 in half, and the baffle plate 8 is provided with an elliptical hole 22 in clearance fit with the heat exchange tube 3. The baffle plate 8 is processed by processes such as splicing and the like to ensure the accuracy of relative angles and reduce corresponding cost, the folded lug 19 is vertically arranged with the pull rod 9, the baffle plate 8 is provided with an elliptical hole 22 which is in clearance fit with the heat exchange tube 3, so that the baffle plate 8 is smoother in the moving process to avoid phenomena such as blockage, fluid flows in a pseudo-spiral oblique heat conduction tube bundle mode in an inclined baffle plate 20 area, and flows in a vertical glancing way through the heat conduction tube bundle in a channel between the two baffle plates 8, the whole flow is approximate to spiral flow, and the problem of a possible flow dead zone of the water heat exchanger of the arched baffle plate 8 is solved.
The pitch adjusting mechanism is a hydraulic telescopic device. The thermoelectric power generation device is characterized in that thermoelectric power generation pieces 23 are uniformly distributed outside the shell 1, the hot ends of the thermoelectric power generation pieces 23 face the shell 1, the thermoelectric power generation pieces 23 are connected with the shell 1 through connecting metal 24, heat-conducting silicone grease 25 is uniformly distributed between the connecting metal 24 and the shell 1 and among the thermoelectric power generation pieces 23, one end of the connecting metal 24 connected with the thermoelectric power generation pieces 23 is a plane, and the other end of the connecting metal 24 is a curved surface matched with the shell 1. Set up thermoelectric generation piece 23's aim at in heat exchanger surface and retrieve the heat that the heat exchanger surface runs off in order to promote its whole heat utilization rate, will connect metal 24 and casing 1 through spot welding and link to each other for perfect laminating is in order to strengthen its thermoelectric generation efficiency between thermoelectric generation piece 23 and casing 1.
The shell 1 is internally provided with a pull rod fixing plate 26 at one end far away from the seal head 2, the pull rod 9 is connected with the pull rod fixing plate 26 through one end of the telescopic mechanism 10, and the other end of the pull rod 9 is connected with the tube plate 27 through the telescopic mechanism 10. The baffle plate 8 at the leftmost side and the rightmost side in the shell 1 is connected with the tube plate 27 and the pull rod fixing plate 26 through the telescopic mechanisms 10, and the baffle plate 8 in the shell 1 is fixed through the telescopic mechanisms 10 at the two ends, so that the baffle plate 8 in the shell 1 is prevented from being deviated due to the flow of hot fluid in the heat exchange process.
Example 2:
according to the baffle plate heat exchanger with the adjustable pitch shown in the figures 1 to 6 and 8, the baffle plate heat exchanger with the adjustable pitch comprises a shell 1 and an end enclosure 2, and is characterized in that one end of the shell 1 is connected with the end enclosure 2, a U-shaped heat exchange tube 3 is arranged in the shell 1, the end enclosure 2 is circumferentially divided into a cold fluid inlet end enclosure 4 and a cold fluid outlet end enclosure 5 by an end enclosure clapboard 28, the cold fluid inlet end enclosure 4 is connected with a cold fluid inlet tube 6, the cold fluid outlet end enclosure 5 is connected with a cold fluid outlet tube 7, one end of the heat exchange tube 3 is connected with the cold fluid outlet end enclosure 5, the other end of the heat exchange tube is connected with the cold fluid inlet end enclosure 4, a plurality of groups of spiral periodic baffle plates and a plurality of longitudinally arranged heat exchange tubes 3 are arranged in the shell 1, each group of spiral periodic baffle plates comprises a plurality of baffle plates 8 which are arranged in the circumferential direction and have different phases, the baffle plates 8 and the longitudinal cross section of the heat exchange tube 3 form a certain inclination angle, the baffle plates 8 with the same phase in the shell 1 form a baffle plate 8 group, two adjacent baffle plates 8 in the same spiral periodic baffle plate are supported by a pull rod 9, the baffle plate 8 group is supported by the same pull rod 9, two adjacent baffle plates 8 on the same pull rod 9 are connected by a telescopic mechanism 10, a pull rod hole 11 in clearance fit with the pull rod 9 is arranged on the baffle plate 8, the shell 1 is connected with the liquid supply device 12, a pressure detection module 13 is arranged in the shell 1, the pressure detection module 13 is connected with a control module 16, and the control module 16 is connected with the telescopic mechanism 10 and the liquid supply device 12. Cold fluid enters a cold fluid inlet end socket 4 through a cold fluid inlet pipe 6, enters a heat exchange pipe 3, then flows into a cold fluid outlet end socket 5 through the heat exchange pipe 3, finally flows out through a cold fluid outlet pipe 7, hot fluid flows in from a hot fluid inlet pipe 18 and flows out from a hot fluid outlet pipe 14, a pressure detection module 13 detects the pressure in a shell 1, detected data are continuously sent to a control module 16, if the pressure detected by the pressure detection module 13 is greater than the set upper limit value of the pressure of the shell 1 in the control module 16, liquid supply is stopped, the pitch among baffle plates 8 is adjusted into a total pitch reduction mode through the control module 16, so that the flow speed of the hot fluid in the shell 1 is increased to enhance the heat exchange effect, meanwhile, the problem that the power required by pumping the hot fluid is too high is also existed, in order to enable the heat exchange coefficient and the power required by pumping the hot fluid to be in an optimal state, meanwhile, the baffle plates 8 in the shell 1 can be adjusted into various pitch modes through the telescopic mechanisms 10 among the baffle plates 8 so as to meet the requirements of various complex operating conditions, and the following baffle plate 8 pitch adjusting modes exist: a single group or a plurality of groups of baffle plates 8 with the same phase shift the same pitch to the same direction through a telescopic mechanism 10, so as to achieve the purpose of roughly adjusting the total pitch in a uniform pitch mode; the single group or a plurality of groups of baffle plates 8 in the same spiral period are shifted to the same direction by the telescopic mechanism 10 to achieve the purpose of roughly adjusting the total pitch in a uniform pitch mode; the single group or a plurality of groups of baffle plates 8 in the same spiral period are changed in descending order or ascending order according to a certain pitch through the telescopic mechanism 10, so that the purpose of fine adjustment of the total pitch is realized by a variable pitch mode; all the single baffle plates 8 in the shell 1 are shifted towards any direction through the telescopic mechanism 10 so as to achieve the purpose of fine adjustment of the total pitch in an unequal pitch mode, and in the mode process that the baffle plate groups are continuously switched to various composite pitches, the baffle plates 8 are continuously moved so as to remove dirt adhered to the baffle plates 8, the heat exchange tubes 3 and the pull rods 9, reduce the thermal resistance of the wall surfaces of the heat exchange tubes 3, increase the overall heat transfer efficiency of the heat exchanger, reduce the maintenance cost of the heat exchanger and prolong the service life of the heat exchanger.
The spiral periodic baffle plates in the same group are composed of three baffle plates 8 which are spirally and uniformly arranged in the circumferential direction. The shell 1 in correspond with hot-fluid import pipe 18 and be equipped with impingement plate 17, all heat exchange tube 3 constitute heat exchange tube 3 and restraint, impingement plate 17 ring locate heat exchange tube 3 bundle outside, pull rod 9 cavity set up and be equipped with the asbestos layer in. The shell 1 is internally provided with an impingement plate 17 corresponding to the hot fluid inlet pipe 18, all the heat pipes form a heat exchange pipe 3 bundle, the impingement plate 17 is annularly arranged outside the heat exchange pipe 3 bundle and is used for reducing direct impact of the hot fluid on the heat exchange pipe 3 so as to prolong the service life of the heat exchange pipe 3, the pull rod 9 is arranged in a hollow mode and is used for arranging related control circuits of the telescopic mechanism 10 and the control module 16 in the pull rod 9, and the pull rod 9 is internally provided with an asbestos layer and is used for insulating heat and avoiding fatal damage of the hot fluid in the heat exchanger on the related control circuits.
The cold fluid outlet end socket 5 is arranged on one side of the hot fluid inlet pipe 18, the cold fluid inlet end socket 4 is arranged on one side of the hot fluid outlet pipe 14, and the volume of the cold fluid inlet end socket 4 is larger than that of the cold fluid outlet end socket 5. Cold fluid and hot fluid enter from different sides so as to enable the cold fluid and the hot fluid to generate convection, increase the relative flow velocity of the fluids and improve the heat exchange coefficient, thereby enhancing the heat exchange effect. Because the volume of the cold fluid inlet end socket is larger than that of the cold fluid outlet end socket, and the contact areas of the two ends of the U-shaped heat exchange tube and the cold fluid inlet end socket and the cold fluid outlet end socket are the same, the flow speed of the cold fluid entering the rear section of the U-shaped heat exchange tube is smaller than that of the heat exchange tube after baffling and flowing out of the section of the heat exchange tube, and the hot fluid flows into the heat exchange tube at the side with larger flow speed and flows out of the heat exchange tube at the side with smaller flow speed, the heat exchange tube at the side with larger flow speed of the cold fluid in the shell has higher temperature of the hot fluid at the same time, so.
The baffle plate 8 is formed by splicing a folded lug 19 supported by the pull rod 9, an inclined baffle plate 20 forming a certain inclination angle with the heat exchange tube 3 and a circumferential overlapped baffle plate 21, the folded lug 19 is perpendicular to the pull rod 9, the baffle plate 8 is of a fan-shaped structure, the folded lug 19 is arranged at the bottom corner of the baffle plate 8 and wraps the inclined baffle plate 20 with the folded lug 19 in half, and the baffle plate 8 is provided with an elliptical hole 22 in clearance fit with the heat exchange tube 3. The baffle plate 8 is processed by processes such as splicing and the like to ensure the accuracy of relative angles and reduce corresponding cost, the folded lug 19 is vertically arranged with the pull rod 9, the baffle plate 8 is provided with an elliptical hole 22 which is in clearance fit with the heat exchange tube 3, so that the baffle plate 8 is smoother in the moving process to avoid phenomena such as blockage, fluid flows in a pseudo-spiral oblique heat conduction tube bundle mode in an inclined baffle plate 20 area, and flows in a vertical glancing way through the heat conduction tube bundle in a channel between the two baffle plates 8, the whole flow is approximate to spiral flow, and the problem of a flow dead zone possibly existing in the bow-shaped baffle plate water-feeding heat exchanger is solved.
The pitch adjusting mechanism is a hydraulic telescopic device. The thermoelectric power generation device is characterized in that thermoelectric power generation pieces 23 are uniformly distributed outside the shell 1, the hot ends of the thermoelectric power generation pieces 23 face the shell 1, the thermoelectric power generation pieces 23 are connected with the shell 1 through connecting metal 24, heat-conducting silicone grease 25 is uniformly distributed between the connecting metal 24 and the shell 1 and among the thermoelectric power generation pieces 23, one end of the connecting metal 24 connected with the thermoelectric power generation pieces 23 is a plane, and the other end of the connecting metal 24 is a curved surface matched with the shell 1. Set up thermoelectric generation piece 23's aim at in heat exchanger surface and retrieve the heat that the heat exchanger surface runs off in order to promote its whole heat utilization rate, will connect metal 24 and casing 1 through spot welding and link to each other for perfect laminating is in order to strengthen its thermoelectric generation efficiency between thermoelectric generation piece 23 and casing 1.
The shell 1 is internally provided with a pull rod 9 fixing plate at one end far away from the seal head 2, the pull rod 9 is connected with the pull rod 9 fixing plate through one end of the telescopic mechanism 10, and the other end of the telescopic mechanism 10 is connected with the tube plate 27. The baffle plate 8 at the leftmost side and the rightmost side in the shell 1 is connected with the tube plate 27 and the pull rod 9 fixing plate through the telescopic mechanisms 10, and the baffle plate 8 in the shell 1 is fixed through the telescopic mechanisms 10 at the two ends, so that the baffle plate 8 in the shell 1 is prevented from being deviated due to the flow of hot fluid in the heat exchange process.
The utility model discloses the beneficial effect who brings can adjust pitch between the flap baffling board according to operating condition, utilizes the cross-flow effect that the double-barrelled journey mechanism of heat exchange tube U-shaped produced to strengthen its heat transfer coefficient to promote 8 heat exchangers of adjustable pitch flap baffling board of whole energy utilization through thermoelectric generation piece 23. Therefore, the utility model has the characteristics of rational structure, convenient use and the like.
Claims (8)
1. A baffle plate heat exchanger with adjustable thread pitch comprises a shell and an end enclosure, and is characterized in that one end of the shell is connected with the end enclosure, a heat exchange tube is arranged in the shell and is of a U-shaped structure, the end enclosure divides the end enclosure into a cold fluid inlet end enclosure and a cold fluid outlet end enclosure in the circumferential direction through an end enclosure partition plate, the cold fluid inlet end enclosure is connected with a cold fluid inlet tube, the cold fluid outlet end enclosure is connected with a cold fluid outlet tube, one end of the heat exchange tube is connected with the cold fluid outlet end enclosure, the other end of the heat exchange tube is connected with the cold fluid inlet end enclosure, a plurality of groups of spiral periodic baffle plates and a plurality of heat exchange tubes which are longitudinally arranged are arranged in the shell, each group of spiral periodic baffle plates comprises a plurality of spiral circumferentially arranged baffle plates with different phases, and the baffle plates and the longitudinal cross section of the heat exchange tube form, the baffle plates with the same phase in the shell form a baffle plate group, two adjacent baffle plates in the same spiral periodic baffle plate are supported by a pull rod, the baffle plate group is supported by the same pull rod, two adjacent baffle plates on the same pull rod are connected by a telescopic mechanism, a pull rod hole in clearance fit with the pull rod is arranged on each baffle plate, the shell is connected with a liquid supply device, a pressure detection module is arranged in the shell, a temperature sensor is arranged at a hot fluid outlet pipe of the baffle plate heat exchanger with the adjustable pitch, the temperature sensor and the pressure detection module are connected with a control module, and the control module is connected with the telescopic mechanism and the liquid supply device.
2. The variable pitch baffled heat exchanger of claim 1, wherein the same set of periodic baffles is comprised of three baffles arranged circumferentially and spirally.
3. The baffle plate heat exchanger with the adjustable pitch as recited in claim 1 or 2, wherein the shell is internally provided with an impingement plate corresponding to the hot fluid inlet pipe, all the heat exchange pipes form a heat exchange pipe bundle, the impingement plate is annularly arranged outside the heat exchange pipe bundle, and the pull rod is hollow and internally provided with an asbestos layer.
4. The heat exchanger with the baffle plates and the adjustable pitch as recited in claim 2, wherein the cold fluid outlet end socket is arranged on one side of the hot fluid inlet pipe, the cold fluid inlet end socket is arranged on one side of the hot fluid outlet pipe, and the volume of the cold fluid inlet end socket is larger than that of the cold fluid outlet end socket.
5. The baffle plate heat exchanger with the adjustable pitch according to claim 1, 2 or 4, characterized in that the baffle plate is formed by splicing a folding lug supported by the pull rod, an inclined baffle plate with a certain inclination angle with the heat exchange tube and a circumferentially overlapped baffle plate, wherein the folding lug is perpendicular to the pull rod, the baffle plate is of a fan-shaped structure, the folding lug is arranged at the bottom corner of the baffle plate and semi-wraps the inclined baffle plate with the folding lug, and the baffle plate is provided with an elliptical hole in clearance fit with the heat exchange tube.
6. An adjustable pitch baffle heat exchanger as claimed in claim 1, 2 or 4 wherein said telescoping mechanism is a hydraulic telescoping device.
7. The heat exchanger with the baffle plates with the adjustable screw pitch according to claim 1, 2 or 4, characterized in that thermoelectric generation plates are uniformly distributed outside the shell, the hot ends of the thermoelectric generation plates face the shell, the thermoelectric generation plates are connected with the shell through connecting metal, heat-conducting silicone grease is uniformly distributed among the connecting metal, the shell and the thermoelectric generation plates, one end of the connecting metal, which is connected with the thermoelectric generation plates, is a plane, and the other end of the connecting metal is a curved surface matched with the shell.
8. The heat exchanger of claim 1, 2 or 4, wherein a tie rod fixing plate is disposed at one end of the casing away from the end enclosure, the tie rod is connected to the tie rod fixing plate through one end of the telescoping mechanism, and the other end of the tie rod is connected to the tube plate through the telescoping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426487.8U CN209945071U (en) | 2019-03-29 | 2019-03-29 | Baffle plate heat exchanger with adjustable pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426487.8U CN209945071U (en) | 2019-03-29 | 2019-03-29 | Baffle plate heat exchanger with adjustable pitch |
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| Publication Number | Publication Date |
|---|---|
| CN209945071U true CN209945071U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920426487.8U Expired - Fee Related CN209945071U (en) | 2019-03-29 | 2019-03-29 | Baffle plate heat exchanger with adjustable pitch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928703A (en) * | 2020-08-24 | 2020-11-13 | 黄书安 | Heat exchanger with double-layer baffle plate |
| CN116440533A (en) * | 2023-06-19 | 2023-07-18 | 东莞市瑞辉新材料技术有限公司 | Bisphenol fluorene recrystallization separation device with circulation temperature control function |
| CN117781741A (en) * | 2024-02-27 | 2024-03-29 | 南京鑫长江制药设备有限公司 | Convection type heat exchanger for cleaning machine |
-
2019
- 2019-03-29 CN CN201920426487.8U patent/CN209945071U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928703A (en) * | 2020-08-24 | 2020-11-13 | 黄书安 | Heat exchanger with double-layer baffle plate |
| CN111928703B (en) * | 2020-08-24 | 2022-07-08 | 安徽普利优新材料有限公司 | Heat exchanger with double-layer baffle plate |
| CN116440533A (en) * | 2023-06-19 | 2023-07-18 | 东莞市瑞辉新材料技术有限公司 | Bisphenol fluorene recrystallization separation device with circulation temperature control function |
| CN116440533B (en) * | 2023-06-19 | 2023-08-29 | 东莞市瑞辉新材料技术有限公司 | Bisphenol fluorene recrystallization separation device with circulation temperature control function |
| CN117781741A (en) * | 2024-02-27 | 2024-03-29 | 南京鑫长江制药设备有限公司 | Convection type heat exchanger for cleaning machine |
| CN117781741B (en) * | 2024-02-27 | 2024-05-03 | 南京鑫长江制药设备有限公司 | Convection type heat exchanger for cleaning machine |
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