An autonomous dynamic monitoring system for high-efficiency plate heat exchangers

Abstract

The present invention discloses an autonomous dynamic monitoring high-efficiency plate heat exchanger, comprising a heat exchange plate assembly, a plate fixing frame, and a sealing gasket. The heat exchange plate assembly is composed of a plurality of plates, which are assembled on a plate fixing frame and sealed by a sealing gasket. The plate comprises a corner hole, a heat exchange zone, a transition zone, and an instrument hole I. The instrument hole I is located in the middle of the plate, and the two sides of the instrument hole I are heat exchange zones, and the two ends of the instrument hole I are transition zones. Corner holes are provided at both ends of the heat exchange zone. Compared with the existing technology, the beneficial effects of the present invention are as follows: 1. An autonomous dynamic monitoring high-efficiency plate heat exchanger, in which the fluid does not need to be guided before entering the heat exchange zone, and the fluid bypasses the instrument box and passes through the transition zone before completing the secondary heat exchange, thereby improving the heat exchange efficiency by more than 35-50%. 2. An autonomous dynamic monitoring high-efficiency plate heat exchanger, which can realize autonomous dynamic monitoring, accurate data collection, timely fault detection, and real-time control of the safe operation of the heat exchanger.

Description

Technical Field

[0001] The present invention relates to a plate heat exchanger, and in particular to an autonomous dynamic monitoring high-efficiency plate heat exchanger, which is mainly used in heating, air conditioning, refrigeration, petrochemical, chemical, industrial, food, electric power, metallurgy and other related industries that require the use of heat exchangers. Background Art

[0002] Most of the current plate heat exchangers adopt a single-channel design, which requires the setting of a guide area to divert the flow. However, no guide area can guarantee that the fluid is completely evenly distributed, resulting in insufficient heat exchange.

[0003] The current plate heat exchanger cannot realize autonomous dynamic monitoring. When in operation, it is necessary to add pressure sensors and temperature sensors to the connecting pipes, and then transmit the information to the control room through signal lines. Due to the installation location and distance of the sensors, the data transmission is often inaccurate and the fault is not discovered in time. Multiple personnel are required to collect data and monitor the operation status, and the operation safety of the heat exchanger cannot be controlled in real time. Summary of the invention

[0004] The purpose of the present invention is to provide an autonomous dynamic monitoring high-efficiency plate heat exchanger, which can improve the heat exchange efficiency, realize autonomous dynamic monitoring, accurately collect data, and control the safe operation of the heat exchanger in real time.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An autonomous dynamic monitoring high-efficiency plate heat exchanger includes a heat exchange plate assembly, a plate fixing frame, and a sealing gasket. The heat exchange plate assembly is composed of a plurality of plates, which are assembled on the plate fixing frame and sealed by the sealing gasket. The plate includes a corner hole, a heat exchange zone, a transition zone, and an instrument hole I. The instrument hole I is located in the middle of the plate, the two sides of the instrument hole I are the heat exchange zones, and the two ends of the instrument hole I are the transition zones. Corner holes are arranged at both ends of the heat exchange zone.

[0007] The heat exchange zone is a herringbone corrugation, and the transition zone is a spherical corrugation.

[0008] The heat exchange plate assembly is composed of an even number of plates, and adjacent plates are rotated 180 degrees up and down to match each other. Sealing gaskets are installed between the plates. The heat exchange area on the sealing gasket is connected to the corner hole at one end thereof and to another heat exchange area at the other end.

[0009] The plate fixing frame includes a fixed pressing plate, a movable pressing plate, a middle partition, an upper crossbeam, a lower crossbeam, and a rear bracket. An instrument hole II is provided in the middle position of the fixed pressing plate, and an instrument hole III is also provided at the same position of the middle partition. A wiring groove is also provided on the middle partition.

[0010] A rolling mechanism is provided between the movable pressing plate and the upper cross beam, and a rolling mechanism is provided between the middle partition plate and the upper cross beam.

[0011] The rolling mechanism comprises a rolling bearing and a bearing coupling. The rolling bearing is installed on a movable pressing plate or a middle partition plate through the bearing coupling. The rolling bearing is symmetrically installed and hung on both sides of the upper crossbeam.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. An autonomous dynamic monitoring high-efficiency plate heat exchanger. The fluid does not need to be guided before entering the heat exchange area. It bypasses the instrument box and passes through the transition area before completing the secondary heat exchange, which improves the heat exchange efficiency by more than 35-50%.

[0014] 2. An autonomous dynamic monitoring system for high-efficiency plate heat exchangers can realize autonomous dynamic monitoring, collect data accurately, detect faults in a timely manner, and control the safe operation of the heat exchanger in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a side schematic diagram of the present invention.

[0017] Figure 1 , Figure 2 Middle: 1. Plate; 2. Fixed pressing plate; 3. Movable pressing plate; 4. Middle partition; 5. Upper crossbeam; 6. Clamping bolts; 7. Lower crossbeam; 8. Rear bracket; 9. Instrument box; 10. Rolling mechanism.

[0018] Figure 3 It is a structural diagram of the heat exchange plate.

[0019] Figure 3 Middle: 11-1, corner hole a; 11-2, corner hole b; 11-3 corner hole c; 11-4 corner hole d; 12-1, heat exchange zone a; 12-2, heat exchange zone b; 13, sealing groove; 14, instrument hole I; 15-1, transition zone a; 15-2, transition zone b.

[0020] Figure 4 It is a schematic diagram of the structure of a sealing gasket.

[0021] Figure 5 It is a structural schematic diagram of a fixed clamping plate.

[0022] Figure 5 Middle: 21, corner hole Ⅰ; 22, instrument hole Ⅱ.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the middle partition.

[0024] Figure 6 Middle: 41, corner hole II; 42, instrument hole III; 43, wiring slot.

[0025] Figure 7 It is a structural schematic diagram of a movable clamping plate.

[0026] Figure 8 It is a schematic diagram of the cooperation between the rolling mechanism and the upper crossbeam.

[0027] Figure 8 Middle: 31, rolling bearing; 32, bearing coupling; 33, fixing pin; 34, movable clamping plate or middle partition.

[0028] Fig. 9 This is a schematic diagram of the instrument box.

[0029] Fig. 9 Middle: 51, box body; 52, LCD display screen; 53, warning light. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0031] See Figure 1-Figure 4 An autonomous dynamic monitoring high-efficiency plate heat exchanger includes a heat exchange plate assembly, a plate fixing frame, and a sealing gasket. The heat exchange plate assembly consists of a plurality of plates 1, which are assembled on the plate fixing frame and sealed by the sealing gasket. The plate 1 includes a corner hole, a heat exchange zone, a transition zone, and an instrument hole Ⅰ14. The instrument hole Ⅰ14 is located in the middle of the plate 1. Both sides of the instrument hole Ⅰ14 are heat exchange zones, and both ends of the instrument hole Ⅰ14 are transition zones. Corner holes are arranged at both ends of the heat exchange zone.

[0032] The width of the heat exchange zone is no more than 20% greater than the diameter of the corner hole.

[0033] The heat exchange zone is a herringbone corrugation, and the transition zone is a spherical corrugation.

[0034] The heat exchange plate assembly is composed of an even number of plates 1, and the adjacent plates 1 are rotated 180 degrees up and down to match, and sealing gaskets are installed between the plates 1. The heat exchange area on the sealing gasket is connected to the corner hole at one end thereof, and is connected to another heat exchange area at the other end. Figure 4 shown.

[0035] See Figure 3, the adjacent plates 1 rotate 180° up and down to match, and then form a channel between each pair of plates 1; transition zone a15-1 and transition zone b15-2 are provided with spherical corrugations to ensure structural strength while minimizing resistance loss; heat exchange zone a12-1 and heat exchange zone b12-2 are provided with herringbone corrugations; the hot medium flows in from the corner hole a11-1, directly enters the heat exchange zone a12-1, flows through the transition zone b15-2 after one heat release, and flows out from the corner hole b11-2 after two heat releases; the cold medium flows in from the corner hole c11-3, directly enters the heat exchange zone a12-1, flows through the transition zone a15-1 after one heat absorption, and flows out from the corner hole d11-4 after two heat absorptions. This design avoids the problem of insufficient heat exchange caused by insufficient flow diversion, and the realization of secondary heat exchange can improve the heat exchange efficiency by more than 35%-50%.

[0036] See Figure 1 , Figure 5-Figure 7 The plate fixing frame includes a fixed pressing plate 2, a movable pressing plate 3, a middle partition 4, an upper crossbeam 5, a lower crossbeam 7, and a rear bracket 8. An instrument hole II 22 is provided in the middle of the fixed pressing plate 2, and an instrument hole III 42 is also provided at the same position of the middle partition 4. A wiring groove 43 is also provided on the middle partition 4. The signal line is pre-buried in the wiring groove 43, the surface of the wiring groove is welded flat, the temperature sensor and the pressure sensor are installed at the corner hole II 41 and connected to the signal line, and the signal line is connected to the instrument box 9.

[0037] The two ends of the upper crossbeam 5 and the lower crossbeam 7 are fixedly connected to the fixed pressing plate 2 and the rear bracket 8, the middle partition 4 and the movable pressing plate 3 are slidably connected to the upper crossbeam 5, the heat exchange plate assembly is between the fixed pressing plate 2 and the middle partition 4, between the middle partition 4 and the movable pressing plate 3, and is locked and fixed by the clamping bolts 6, and the heat exchange plate assembly and the fixed pressing plate 2, the middle partition 4, and the movable pressing plate 3 are sealed by sealing gaskets.

[0038] See Figure 2 , Figure 8 A rolling mechanism 10 is provided between the movable pressing plate 3 and the upper cross beam 5 , and a rolling mechanism 10 is provided between the middle partition plate 4 and the upper cross beam 5 .

[0039] The rolling mechanism 10 includes a rolling bearing 31 and a bearing coupling 32 . The rolling bearing 31 is mounted on a movable clamping plate or a middle partition plate 34 via the bearing coupling 32 . The rolling bearing 31 is symmetrically mounted and hung on both sides of the upper crossbeam 5 .

[0040] The fixed clamping plate 2, the plate 1 and the middle partition 4 are all provided with instrument holes II22, instrument holes I14 and instrument holes III42 of the same position and specification. After assembly, they will form an instrument box slot to install the instrument box 9, and a wiring slot 43 is provided in the middle partition 4. The sensor detects the temperature and pressure data of the four corner holes II41 respectively through the wiring slot 43, and can realize autonomous dynamic monitoring. There is a liquid crystal display screen 52 on the instrument box 9, which can read and remotely transmit the pressure, temperature data and alarm information of all imports and exports. Overpressure, low pressure, overtemperature and low temperature light alarms can be set, and historical operation and alarm records can be saved, which solves the problems of inconvenient and untimely monitoring and high cost of equipping specialized personnel.

[0041] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An autonomous dynamic monitoring high-efficiency plate heat exchanger, comprising a heat exchange plate assembly, a plate fixing frame, and a sealing gasket, wherein the heat exchange plate assembly is composed of a plurality of plates, which are assembled on the plate fixing frame and sealed by the sealing gasket, and characterized in that: The plate includes corner holes, a heat exchange zone, a transition zone, and an instrument hole I. The instrument hole I is located in the middle of the plate. Both sides of the instrument hole I are heat exchange zones. Both ends of the instrument hole I are transition zones. Corner holes are arranged at both ends of the heat exchange zone.

2. The method for autonomous dynamic monitoring of a high-efficiency plate heat exchanger according to claim 1, characterized in that: The heat exchange zone is a herringbone corrugation, and the transition zone is a spherical corrugation.

3. The autonomous dynamic monitoring high-efficiency plate heat exchanger according to claim 1 or 2, characterized in that: The heat exchange plate assembly is composed of an even number of plates, and adjacent plates are rotated 180 degrees up and down to match each other. Sealing gaskets are installed between the plates. The heat exchange area on the sealing gasket is connected to the corner hole at one end thereof and to another heat exchange area at the other end.

4. The method for autonomous dynamic monitoring of a high-efficiency plate heat exchanger according to claim 1, characterized in that: The plate fixing frame includes a fixed pressing plate, a movable pressing plate, a middle partition, an upper crossbeam, a lower crossbeam, and a rear bracket. An instrument hole II is provided in the middle position of the fixed pressing plate, and an instrument hole III is also provided at the same position of the middle partition. A wiring groove is also provided on the middle partition.

5. The method for autonomous dynamic monitoring of a high-efficiency plate heat exchanger according to claim 4, characterized in that: A rolling mechanism is provided between the movable pressing plate and the upper cross beam, and a rolling mechanism is provided between the middle partition plate and the upper cross beam.

6. The method for autonomous dynamic monitoring of a high-efficiency plate heat exchanger according to claim 5, characterized in that: The rolling mechanism comprises a rolling bearing and a bearing coupling. The rolling bearing is installed on a movable pressing plate or a middle partition plate through the bearing coupling. The rolling bearing is symmetrically installed and hung on both sides of the upper crossbeam.

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