Plate-type preheater for ORC (organic Rankine cycle) power generation

Abstract

The utility model relates to the technical field of plate type pre-heaters, and discloses an ORC power generation plate type pre-heater which comprises a side plate, a vent groove is formed in the wall face of the side plate in a penetrating mode, a heat conduction piece is movably connected to the wall face of the side plate, an air connecting groove is formed in the wall face of the heat conduction piece in a penetrating mode, and an auxiliary structure is arranged on the wall face of the side plate. The auxiliary structure comprises a protective shell and a front turning plate, the protective shell is fixedly connected to the wall face of the side plate, the front turning plate is rotatably connected to the wall face of the protective shell, and the auxiliary structure can improve the heat conduction efficiency of the heat conduction piece; according to the auxiliary structure, the heat-conducting fin is mounted in the closed structure, so that loss of heat due to contact with surrounding air after the heat-conducting fin absorbs the heat is reduced, and the heat conduction effect of the heat-conducting fin is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate preheaters, and in particular relates to a plate preheater for ORC power generation. Background Art

[0002] The prior art (application number: CN201821265179.3) discloses a plate preheater for ORC power generation, comprising a fixed pressing plate, a plurality of first plates, a middle partition, a plurality of second plates, a movable pressing plate and a support arranged in sequence; between the fixed pressing plate and the middle partition, a plurality of first plates are closely arranged; and, from one side of the fixed pressing plate to the side of the middle partition, the thickness of the plurality of first plates increases in sequence.

[0003] The prior art achieves a preheating effect by utilizing the heat in the exhaust gas to preheat the objects entering the machine. However, after long-term use, dust will accumulate on the wall of the prior art, and the dust will not be cleaned. The dust will affect the thermal conductivity of the device, and cleaning the dust will require greater working pressure and working time.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims at providing a plate-type preheater for ORC power generation, which can increase the heat circulation effect of the device by arranging an auxiliary structure.

[0006] The purpose of the utility model is achieved in this way. A plate preheater for ORC power generation includes a side plate, a ventilation groove is opened through the wall of the side plate, a heat conducting plate is movably connected to the wall of the side plate, and a ventilation groove is opened through the wall of the heat conducting plate. The wall of the side plate is provided with an auxiliary structure, and the auxiliary structure includes a protective shell and a front flap. The protective shell is fixedly connected to the wall of the side plate, and the front flap is rotatably connected to the wall of the protective shell. The auxiliary structure can improve the thermal conductivity efficiency of the heat conducting plate.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] 1. The heat circulation effect of the device can be increased by setting an auxiliary structure, because the auxiliary structure installs the heat conductive sheet in a closed structure, thereby reducing the heat loss of the heat conductive sheet due to contact with the surrounding air after the heat conductive sheet absorbs heat, thereby improving the heat conductive effect of the heat conductive sheet. The auxiliary structure can also prevent dust from falling on the wall of the heat conductive sheet and affecting the heat conductive effect of the heat conductive sheet, and also avoids the need to clean the heat conductive sheet.

[0009] 2. By setting up the auxiliary structure, the installation position of the thermal conductive sheet can be made more stable when installing the thermal conductive sheet, preventing the thermal conductive sheet from shifting when installed in the protective shell, and when the front flap blocks the front wall of the protective shell, the positioning strip will lock the position of the thermal conductive sheet to prevent the thermal conductive sheet from shifting in the protective shell cavity and causing air leakage of the thermal conductive sheet and the sealing rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the utility model;

[0011] Figure 2 It is a bottom stereogram of the utility model;

[0012] Figure 3 This is a structural diagram of the protective shell cavity of the utility model;

[0013] Figure 4 This is a perspective view of the protective shell of the utility model;

[0014] Figure 5 It is a side view of the protective shell and the front flap of the utility model.

[0015] Description of the drawings: 20, side panel; 21, ventilation groove; 22, protective shell; 30, heat conducting plate; 31, air connecting groove; 32, alignment groove; 33, positioning groove; 34, sealing rubber ring; 35, alignment strip; 40, front flap; 41, stop block; 42, blocking block; 43, positioning strip. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0017] like Figure 1-5 As shown, a plate preheater for ORC power generation includes a side plate 20, a ventilation groove 21 is formed through the wall of the side plate 20, a heat conducting plate 30 is movably connected to the wall of the side plate 20, and a connecting air groove 31 is formed through the wall of the heat conducting plate 30. The heat conducting plate 30 is any type of heat-conducting stainless steel plate or titanium plate or other heat-conducting material in the prior art. This is the existing technology and will not be described in detail here.

[0018] like Figure 1 , 3 -5, the wall surface of the side panel 20 is provided with an auxiliary structure, the auxiliary structure includes a protective shell 22 and a front flap 40, the protective shell 22 is fixedly connected to the wall surface of the side panel 20, and the front flap 40 is rotatably connected to the wall surface of the protective shell 22, and the auxiliary structure can improve the thermal conductivity of the heat conducting plate 30.

[0019] like Figure 1-Figure 5As shown, the protective shell 22 is a hollow rectangle with an open front wall and two side walls, the side panels 20 are symmetrically fixedly connected to the two sides of the protective shell 22, the front flap 40 is rotatably connected to the front wall of the protective shell 22, the venting groove 21 and the connecting air groove 31 are both circular grooves of the same size, a plurality of venting grooves 21 are opened on the wall of the side panel 20, and the plurality of venting grooves 21 are evenly distributed on the wall of the side panel 20, the position and number of the connecting air grooves 31 are consistent with the venting grooves 21, a plurality of heat conducting sheets 30 are clamped in the cavity of the protective shell 22, and each connecting air groove 31 and the corresponding The auxiliary structure further comprises an alignment groove 32 and a sealing rubber ring 34. The alignment groove 32 is provided on the wall surface of the heat conducting sheet 30. The sealing rubber ring 34 is fixedly connected to one side wall surface of the heat conducting sheet 30. The alignment groove 32 is provided on the top of the rear wall surface of the heat conducting sheet 30. The sealing rubber ring 34 is separated between each adjacent heat conducting sheet 30. The sealing rubber ring 34 can connect half of the connecting grooves 31 on the side wall surface of the heat conducting sheet 30 to each other, and the connecting grooves 31 on the other half of the side wall surface of the heat conducting sheet 30 are not connected to each other through the sealing rubber ring 34.

[0020] When in use, the device is installed in a machine to be used, and the air inlet of the machine is connected to the ventilation grooves 21 at the interconnected air grooves 31, and the exhaust port is connected to the ventilation grooves 21 that are not connected to the air grooves 31. When the gas is discharged from the machine, it will pass through the ventilation grooves 21 at the corresponding position. At this time, when the gas enters the ventilation grooves 21, it will pass from the air grooves 31 to another ventilation groove 21, and then be discharged from the ventilation grooves 21. When the gas passes through each air groove 31, its heat will be absorbed by each heat conductive sheet 30. At this time, when the gas needs to enter the machine, it will enter the air grooves 31 at the corresponding position and will be preheated by the heat absorbed by the heat conductive sheet 30, thereby completing the heat cycle;

[0021] In summary, the heat circulation effect of the device can be increased by setting up an auxiliary structure, because the auxiliary structure installs the heat-conducting sheet 30 in a closed structure, thereby reducing the heat loss of the heat-conducting sheet 30 due to contact with the surrounding air after absorbing heat, thereby improving the thermal conductivity of the heat-conducting sheet 30. The auxiliary structure can also prevent dust from falling on the wall of the heat-conducting sheet 30 and affecting the thermal conductivity of the heat-conducting sheet 30, and also avoids the need to clean the heat-conducting sheet 30.

[0022] like Figure 1-Figure 5As shown, the auxiliary structure also includes a positioning groove 33, an alignment strip 35 and a positioning strip 43. The positioning groove 33 is arranged on the front wall surface of the heat conducting sheet 30, the alignment strip 35 is fixedly connected to the cavity of the protective shell 22, and the positioning strip 43 is fixedly connected to the rear wall surface of the front flap 40. The positioning groove 33 can be adapted to the positioning strip 43, and the positioning strip 43 can enter the positioning groove 33. The positioning groove 33 is in the shape of an inverted L-shaped groove, and the positioning strip 43 is in the shape of a rectangular strip. The alignment strip 35 can enter the alignment groove 32. The auxiliary structure also includes a blocking block 42 and a blocking block 41. The blocking block 42 is fixedly connected to the bottom of the front flap 40, and the blocking block 41 is rotatably connected to the bottom of the protective shell 22. The blocking block 41 can be rotated to block the blocking block 42. The walls of the symmetrical heat conducting sheets 30 facing each other are also fixedly connected with sealing rubber rings 34, and there is only one sealing rubber ring 34 between each adjacent heat conducting sheet 30.

[0023] When in use, the front flap 40 can be turned over on the front wall of the protective shell 22 to make the front wall of the protective shell 22 open. At this time, the heat conducting sheet 30 can be put into the cavity of the protective shell 22 from the front wall of the protective shell 22. When the heat conducting sheet 30 is installed in the cavity of the protective shell 22, the alignment bar 35 will be stuck in the alignment groove 32. When the heat conducting sheet 30 is completely installed in the cavity of the protective shell 22, the front flap 40 is used to cover the front wall of the protective shell 22. At this time, the stopper 41 is rotated to the bottom of the stopper 42 to fix the position of the front flap 40.

[0024] To sum up, by setting up the auxiliary structure, the installation position of the thermal conductive sheet 30 can be made more stable when installing the thermal conductive sheet 30, and the thermal conductive sheet 30 can be prevented from shifting when installed in the protective shell 22. When the front flap 40 blocks the front wall of the protective shell 22, the positioning strip 43 can lock the position of the thermal conductive sheet 30 to prevent the thermal conductive sheet 30 from shifting in the cavity of the protective shell 22, causing air leakage of the thermal conductive sheet 30 and the sealing rubber ring 34.

[0025] Working principle: install the device in the machine to be used, and connect the air inlet of the machine to the ventilation grooves 21 at the interconnected air grooves 31, and connect the exhaust port to the ventilation grooves 21 that are not connected to the air grooves 31. When the gas is discharged from the machine, it will pass through the ventilation grooves 21 at the corresponding position. At this time, when the gas enters the ventilation grooves 21, it will pass from the air grooves 31 to another ventilation groove 21, and then be discharged from the ventilation grooves 21. When the gas passes through each air groove 31, its heat will be absorbed by each heat conducting plate 30. At this time, when the gas needs to enter the machine, it will enter the air grooves 31 at the corresponding position and will be preheated by the heat absorbed by the heat conducting plate 30, thereby completing the heat cycle.

[0026] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A plate preheater for ORC power generation, comprising a side plate (20), a venting groove (21) is formed through the wall surface of the side plate (20), a heat conducting sheet (30) is movably connected to the wall surface of the side plate (20), and a connecting air groove (31) is formed through the wall surface of the heat conducting sheet (30); characterized in that: The wall surface of the side plate (20) is provided with an auxiliary structure, the auxiliary structure comprising a protective shell (22) and a front flap (40), the protective shell (22) is fixedly connected to the wall surface of the side plate (20), and the front flap (40) is rotatably connected to the wall surface of the protective shell (22), and the auxiliary structure can improve the heat conduction efficiency of the heat conducting plate (30).

2. The plate preheater for ORC power generation according to claim 1, characterized in that: The protective shell (22) is in the form of a hollow rectangle with an open front wall and two side walls; the side panels (20) are symmetrically fixedly connected to the two sides of the protective shell (22); the front flap (40) is rotatably connected to the front wall of the protective shell (22); the ventilation groove (21) and the connecting air groove (31) are both circular grooves of the same size; a plurality of ventilation grooves (21) are opened on the wall of the side panel (20); the plurality of ventilation grooves (21) are evenly distributed on the wall of the side panel (20); the position and number of the connecting air grooves (31) are consistent with the ventilation grooves (21); a plurality of heat conducting plates (30) are clamped in the cavity of the protective shell (22); each connecting air groove (31) is connected to the ventilation groove (21) at a corresponding position.

3. The plate preheater for ORC power generation according to claim 1, characterized in that: The auxiliary structure further comprises an alignment groove (32) and a sealing rubber ring (34); the alignment groove (32) is provided on the wall surface of the heat conducting plate (30); the sealing rubber ring (34) is fixedly connected to a side wall surface of the heat conducting plate (30); the alignment groove (32) is provided on the top of the rear wall surface of the heat conducting plate (30); and the sealing rubber ring (34) is spaced apart between each adjacent heat conducting plate (30).

4. The plate preheater for ORC power generation according to claim 3, characterized in that: The sealing rubber ring (34) can connect half of the air connection grooves (31) on the side wall surface of the heat conducting plate (30) to each other, while the other half of the air connection grooves (31) on the side wall surface of the heat conducting plate (30) are not connected to each other through the sealing rubber ring (34).

5. The plate preheater for ORC power generation according to claim 3, characterized in that: The auxiliary structure further comprises a positioning groove (33), an alignment strip (35) and a positioning strip (43); the positioning groove (33) is provided on the front wall surface of the heat conducting plate (30); the alignment strip (35) is fixedly connected to the cavity of the protective shell (22); and the positioning strip (43) is fixedly connected to the rear wall surface of the front flap (40).

6. The plate preheater for ORC power generation according to claim 5, characterized in that: The locking groove (33) can be adapted to the locking strip (43), the locking strip (43) can enter the locking groove (33), the locking groove (33) is in the shape of an inverted L-shaped groove, the locking strip (43) is in the shape of a rectangular strip, and the alignment strip (35) can enter the alignment groove (32).

7. The plate preheater for ORC power generation according to claim 5, characterized in that: The auxiliary structure also includes a block (42) and a block (41), wherein the block (42) is fixedly connected to the bottom of the front flap (40), and the block (41) is rotatably connected to the bottom of the protective shell (22).

8. The plate preheater for ORC power generation according to claim 7, characterized in that: The blocking block (41) can be rotated to block the blocking block (42); the wall surfaces of the symmetrical heat conducting plates (30) facing each other are also fixedly connected with sealing rubber rings (34); and there is only one sealing rubber ring (34) between each adjacent heat conducting plate (30).

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