Flat plate type evaporator with explosion-proof structure

Abstract

The utility model relates to the technical field of flat plate evaporators, in particular to a flat plate evaporator with an explosion-proof structure, which comprises an evaporator shell, one end of the evaporator shell is communicated with a water inlet pipe, and the other end of the evaporator shell is communicated with an air outlet pipe. A plurality of water inlets are formed in the first heat insulation plate, a plurality of air outlets are formed in the second heat insulation plate, a heating mechanism is fixed between the first heat insulation plate and the second heat insulation plate, a capillary core is arranged in the heating mechanism and communicated with the water inlets, and a water supplementing mechanism is arranged on the side, away from the second heat insulation plate, of the first heat insulation plate. A pressure reduction mechanism is arranged on the side, away from the first heat insulation plate, of the second heat insulation plate; the lower heating plate, the heating partition plate and the upper heating plate are arranged, the heating partition plate is arranged between the capillary cores, the capillary cores can be evenly heated, and the situation that the local temperature is too high is avoided to a certain degree; by arranging the pressure reduction mechanism, the air pressure in the evaporator can be reduced to a certain extent, the time of high-pressure damage to the evaporator is delayed, workers can be reminded to close the evaporator in time, evacuate nearby workers and overhaul the evaporator twice before high-pressure damage occurs, and the probability of high-pressure damage to the evaporator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat plate evaporator technical field especially, it is a kind of flat plate evaporator with explosion -proof structure. BACKGROUND

[0002] Flat plate evaporator is a kind of heat exchange equipment, it is evaporated by heating material to make material reach boiling point.

[0003] The existing evaporator exists uneven heating, local temperature is too high, during the evaporation process of evaporator, its internal air pressure is higher, once the outlet pipe is blocked or the gas in the evaporator is suddenly increased, it will cause great damage to the evaporator, cause the high pressure damage of evaporator, and before the damage occurs, staff usually cannot judge whether the evaporator is damaged, whether internal air pressure is too high, once high pressure damage occurs, it will cause nearby staff to be injured, and there is security risk.

[0004] Therefore, the present application provides a kind of flat plate evaporator with explosion -proof structure to overcome the defects of prior art. INVENTION CONTENTS

[0005] The utility model aims at solving the problems of uneven heating of the existing, once the outlet pipe is blocked or the gas in the evaporator is suddenly increased, it will cause great damage to the evaporator, cause the high pressure damage of evaporator, and staff cannot judge the internal condition of evaporator.

[0006] The utility model technical scheme provides a kind of flat plate evaporator with explosion -proof structure, including evaporator shell, the one end of evaporator shell is connected with water inlet pipe, the other end is connected with outlet pipe, the heat insulation plate one and heat insulation plate two of vertical setting are fixed in the evaporator shell, the heat insulation plate one and heat insulation plate two are parallel and heat insulation plate one is located at the left side of heat insulation plate two, the heat insulation plate one is close to water inlet pipe, a plurality of water inlets are set on the heat insulation plate one, the heat insulation plate two is close to outlet pipe, a plurality of gas outlets are set on the heat insulation plate two, the heat insulation plate one and heat insulation plate two divide the inside of evaporator shell into three spaces, heating mechanism is fixed between the heat insulation plate one and heat insulation plate two, capillary core is arranged in the heating mechanism, the capillary core is connected with water inlet, the side, away from heat insulation plate two, of heat insulation plate one is equipped with water supplementing mechanism, the water supplementing mechanism is used to carry out water supplementing to evaporator, to avoid dry steaming and cause evaporator damage, the side, away from heat insulation plate one, of heat insulation plate two is equipped with pressure reducing mechanism, and the pressure reducing mechanism is used to reduce the air pressure in the evaporator shell, to prevent the explosion of evaporator caused by excessive air pressure.

[0007] As a preferred technical scheme, the evaporator shell comprises a bottom plate, the top of the bottom plate is fixedly connected with a shell, the left side of the shell is communicated with the water inlet pipe, the right side of the shell is communicated with the air outlet pipe, a plurality of screw holes are formed in the top of the shell, a plurality of bolts are arranged on the cover plate one, the cover plate two and the cover plate three, and the bolts are threadedly connected with the screw holes.

[0008] As a preferred technical scheme, the heating mechanism comprises a lower heating plate, the two ends of the lower heating plate are fixedly connected with the side walls of the heat insulation plate one and the heat insulation plate two, the bottom is fixedly connected with the top of the bottom plate, a plurality of vertically arranged heating partitions are fixedly connected with the top of the lower heating plate, the two ends of each heating partition are fixedly connected with the side walls of the heat insulation plate one and the heat insulation plate two, the capillary core is arranged between the heating partitions and the inner wall of the shell, the top of the heating partition is fixedly connected with an upper heating plate, a plurality of notches are formed in the upper heating plate, the height of the upper heating plate is lower than the height of the air outlet, the heating mechanism heats the capillary core, the liquid in the capillary core evaporates into gas after being heated, and then escapes from the notches in the upper heating plate, enters the space on the right side of the heat insulation plate two through the air outlet, and is transmitted to the outside through the air outlet pipe.

[0009] As a preferred technical scheme, the water replenishing mechanism comprises an inclined slope, the inclined slope is arranged in the space on the left side of the heat insulation plate one, the left side of the inclined slope is higher than the right side, the height of the left top end of the inclined slope is lower than the height of the bottom of the water inlet pipe, the height of the right top end of the inclined slope is leveled with the height of the bottom wall of the water inlet, a water level sensor is fixedly arranged on the top wall of the inclined slope, and the water level sensor is used for measuring the water level. When the machine is in a running state and the water level is lower than a certain height, the water level sensor can send a signal to the background control system connected thereto to remind the staff to intervene in the machine operation in time to prevent dry burning.

[0010] As a preferred technical scheme, the water replenishing mechanism further comprises a water outlet pipe, one end of the water outlet pipe is communicated with the water inlet, a plurality of small holes are formed in the side wall of the water outlet pipe, a connecting groove is formed in the capillary core, the water outlet pipe is arranged in the connecting groove, a water replenishing tank is fixedly arranged on the top of the inclined slope, and the water replenishing tank is hollow. A water inlet hole is formed in the top wall of the water replenishing tank, an extension rod is fixedly arranged on the inner side wall of the water replenishing tank, the extension rod is at least a two-stage extension rod, and can also be a three-stage or more extension rod, a spring is arranged in the extension rod, a sealing cover is fixedly arranged at one end of the extension rod, a clamping groove one is formed in the side wall of the water replenishing tank, and the clamping groove one is clamped with the sealing cover.

[0011] As a preferred technical scheme, the decompression mechanism is arranged in the space right to the heat insulation plate, the decompression mechanism comprises a gas pressure sensor one, the gas pressure sensor one is fixed on the top of a bottom plate, a decompression box is also fixed on the bottom plate, a clamping groove two is formed in the side wall of the decompression box, a clamping plate is clamped in the clamping groove two, a motor is fixed on the inner side wall of the decompression box, the motor can receive the signal sent by the gas pressure sensor one, a lead screw is drivingly connected to the output end of the motor, the lead screw is rotatably connected to the other inner side wall of the decompression box, the lead screw is arranged directly below the clamping groove two, a guide rod is arranged in parallel on one side of the lead screw, an L-shaped connecting plate is drivingly connected to the lead screw, the connecting plate is slidingly connected with the guide rod, the connecting plate is fixedly connected with the clamping plate at the top, a gas pressure sensor two is fixed on the bottom wall of the decompression box, the gas pressure sensor one and the gas pressure sensor two can detect the gas pressure and transmit the gas pressure to the background monitoring system, when the gas pressure exceeds a certain value, the staff is reminded to close the machine in time, and the machine is detected.

[0012] The flat plate type evaporator with the explosion-proof structure has the advantages that:

[0013] The lower heating plate, the heating partition plate and the upper heating plate are arranged, the heating partition plate is arranged between the capillary wicks, the capillary wicks can be uniformly heated, and the situation that the local temperature is too high is avoided to a certain extent.

[0014] The decompression mechanism is arranged, the gas pressure in the evaporator can be reduced to a certain extent, the time when the evaporator is damaged under high pressure is delayed, the staff can be reminded twice to close the evaporator in time before the high pressure damage occurs, the staff near the evaporator can be evacuated, the evaporator can be overhauled, and the probability that the evaporator is damaged under high pressure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model embodiment;

[0016] Figure 2 It is an internal structure schematic view of the utility model embodiment;

[0017] Figure 3 It is an internal structure top view of the utility model embodiment;

[0018] Figure 4 It is a schematic view of the heating mechanism and the water outlet pipe of the utility model embodiment;

[0019] Figure 5 It is an internal structure schematic view of the water replenishing mechanism of the utility model embodiment;

[0020] Figure 6 It is an internal structure right view of the water replenishing mechanism of the utility model embodiment;

[0021] Figure 7 It is the internal structure schematic view of the pressure reducing mechanism of the utility model embodiment;

[0022] Figure 8 It is the internal structure right view of the pressure reducing mechanism of the utility model embodiment.

[0023] 1, evaporator shell;11, bottom plate;12, shell;13, cover plate one;14, cover plate two;15, cover plate three;16, screw hole;17, bolt;2, liquid inlet pipe;3, gas outlet pipe;4, heat insulation plate one;41, water inlet;5, heat insulation plate two;51, gas outlet;6, heating mechanism;61, lower heating plate;62, heating partition;63, upper heating plate;7, capillary core;8, water replenishing mechanism;81, slope;82, water level sensor;83, water replenishing tank;84, water inlet hole;85, telescopic rod;86, spring;87, sealing cover;88, clamping groove one;89, water outlet pipe;9, pressure reducing mechanism;91, air pressure sensor one;92, pressure reducing tank;93, clamping groove two;94, clamping plate;95, motor;96, screw;97, guide rod;98, connecting plate;99, air pressure sensor two. DETAILED DESCRIPTION

[0024] In order to make the technical means, technical features, utility model purposes and technical effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings;Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0025] Embodiment one

[0026] As Figures 1 to 8As shown: A flat-plate evaporator with an explosion-proof structure, including an evaporator shell 1, one end of the evaporator shell 1 is connected to a water inlet pipe 2, and the other end is connected to an air outlet pipe 3. A vertically arranged heat insulation board 1 4 and a heat insulation board 2 5 are fixed in the evaporator shell 1. The heat insulation board 1 4 and the heat insulation board 2 5 are parallel and the heat insulation board 1 4 is arranged on the left side of the heat insulation board 2 5. The heat insulation board 1 4 is close to the water inlet pipe 2, and a plurality of water inlets 41 are opened on the heat insulation board 1 4. The heat insulation board 2 5 is close to the air outlet pipe 3, and a plurality of air outlets 51 are opened on the heat insulation board 2 5. The heat insulation board 1 4 and the heat insulation board 2 5 divide the interior of the evaporator shell 1 into three A space is provided, a heating mechanism 6 is fixed between the heat insulation board 1 4 and the heat insulation board 2 5, a capillary core 7 is provided in the heating mechanism 6, the capillary core 7 is communicated with the water inlet 41, a water replenishing mechanism 8 is provided on the side of the heat insulation board 1 4 away from the heat insulation board 2 5, the water replenishing mechanism 8 is used to replenish water into the evaporator to avoid dry steaming and causing damage to the evaporator, a pressure reducing mechanism 9 is provided on the side of the heat insulation board 2 5 away from the heat insulation board 1 4, the pressure reducing mechanism 9 is used to reduce the air pressure in the evaporator housing 1 to prevent the evaporator from exploding due to excessive air pressure. In this device, the evaporator housing 1 and the heat insulation board 1 4 and the heat insulation board 2 5 are all made of low thermal conductivity materials.

[0027] like Figures 1 to 4 As shown: the evaporator casing 1 includes a base plate 11, and a shell 12 is fixedly connected to the top of the base plate 11. The left side of the shell 12 is connected to the water inlet pipe 2, and the right side is connected to the air outlet pipe 3. A plurality of screw holes 16 are opened on the top of the shell 12, and a cover plate 13, a cover plate 2 14 and a cover plate 3 15 are provided above the shell 12 from left to right. The cover plate 13 is arranged above the left space of the insulation board 1 4, the cover plate 2 14 is arranged above the space between the insulation board 1 4 and the insulation board 2 5, and the cover plate 3 15 is arranged above the right space of the insulation board 2 5. A plurality of bolts 17 are provided on the cover plate 13, the cover plate 2 14 and the cover plate 3 15, and the bolts 17 are threadedly connected to the screw holes 16. The cover plate 13, the cover plate 2 14 and the cover plate 3 15 are bolted to the shell 12 through the bolts 17 and the screw holes 16.

[0028] like Figures 1 to 4As shown: the heating mechanism 6 includes a lower heating plate 61, the two ends of the lower heating plate 61 are fixedly connected to the side walls of the insulation plate 1 4 and the insulation plate 2 5, and the bottom is fixedly connected to the top of the bottom plate 11, and the top of the lower heating plate 61 is fixedly connected to a plurality of vertically arranged heating partitions 62, and the two ends of each of the heating partitions 62 are respectively fixedly connected to the side walls of the insulation plate 1 4 and the insulation plate 2 5, and the capillary wick 7 is arranged between the heating partitions 62 and the heating partitions 62 and between the heating partitions 62 and the inner wall of the shell 11, and an upper heating plate 63 is fixed on the top of the heating partition 62, and a plurality of notches are opened in the upper heating plate 63, and the height of the upper heating plate 63 is lower than the height of the air outlet 51, and the heating mechanism 6 heats the capillary wick 7. After heating, the liquid in the capillary wick 7 evaporates into gas, and then escapes from the notch in the upper heating plate 63, enters the space on the right side of the insulation plate 2 5 through the air outlet 51, and is transmitted to the outside through the steam outlet pipe 3.

[0029] like Figures 1 to 6 As shown: the water replenishment mechanism 8 includes a slope 81, which is arranged in the space on the left side of the insulation board 4. The left side of the slope 81 is higher than the right side. The height of the left top of the slope 81 is lower than the height of the bottom of the water inlet pipe 2. The height of the right top of the slope 81 is level with the height of the bottom wall of the water inlet 41. A water level sensor 82 is fixed on the top wall of the slope 81. The water level sensor 82 is used to measure the water level. When the machine is in operation and the water level is lower than a certain height, the water level sensor 82 can send a signal to the background control system connected to it, reminding the staff to intervene in the machine operation in time to prevent dry burning.

[0030] The water replenishment mechanism 8 also includes a water outlet pipe 89, one end of which is connected to the water inlet 41. The sidewall of the water outlet pipe 89 is provided with a plurality of small holes. The capillary wick 7 is provided with a connecting groove, in which the water outlet pipe 89 is disposed. A hollow water replenishment tank 83 is fixed to the top of the slope 81. A water inlet hole 84 is provided on the top wall. A telescopic rod 85 is fixed to the inner sidewall of the water replenishment tank 83. The telescopic rod 85 is at least a two-stage telescopic rod, and may also be a three-stage or more telescopic rod. A spring 86 is provided within the telescopic rod 85. A sealing cap 87 is fixed to one end of the telescopic rod 85. A slot 1 88 is provided on the sidewall of the water replenishment tank 83, and the slot 1 88 engages with the sealing cap 87.

[0031] Working principle of water replenishment mechanism: When water is not added to the evaporator, the sealing cover 87 is only acted upon by the telescopic rod 85, and the spring 86 is in a stretched state ( Figure 5 、 Figure 6When the evaporator starts to be filled with water, at the beginning, there is water outside the water supply tank 83 but no water inside. The sealing cover 87 is simultaneously acted upon by the inward force of the spring 86 and the external water pressure. The slot 1 88 and the sealing cover 87 are still in the engaged and sealed state. When the water flow outside the water supply tank 83 covers the top wall of the water supply tank 83, the water flows into the water supply tank 83 from the water inlet hole 84. At this time, the sealing cover 87 is simultaneously acted upon by the inward force of the spring 86. The pulling force, external water pressure and internal water pressure, since the water level outside the water supply tank 83 is higher than the water level inside the water supply tank 83, the card slot 1 88 and the sealing cover 87 are still in a card-sealed state, and the water flow is still unable to enter or exit from the card slot 1 88; until the water level inside the water supply tank 83 is higher than the water level outside the water supply tank 83, and the height difference between the inside and outside of the water supply tank 83 reaches a certain level, when the internal water pressure is greater than the inward pulling force of the spring 86 and the external water pressure, the sealing cover 87 moves to the side away from the water supply tank 83, and the water inside the water supply tank 83 flows out to replenish the outside.

[0032] like Figures 1 to 4 As shown: the decompression mechanism 9 is arranged in the space on the right side of the heat insulation board 2 5, the decompression mechanism 9 includes an air pressure sensor 91, the air pressure sensor 91 is fixed to the top of the bottom plate 11, and a decompression box 92 is also fixed on the bottom plate 11. A second card slot 93 is opened on the side wall of the decompression box 92, and a card plate 94 is clamped in the second card slot 93. A motor 95 is fixed on the inner side wall of the decompression box 92. The motor 95 can receive the signal sent by the air pressure sensor 91. The output end of the motor 95 is connected to a screw rod 96, and the screw rod 96 is connected to the other inner wall of the decompression box 92. Rotational connection, the screw rod 96 is arranged just below the second card slot 93, and a guide rod 97 is arranged parallel to one side of the screw rod 96. An "L"-shaped connecting plate 98 is transmission-connected to the screw rod 96, and the connecting plate 98 is slidingly connected to the guide rod 97. The top of the connecting plate 98 is fixedly connected to the card plate 94. An air pressure sensor 2 99 is fixed on the bottom wall of the decompression box 92. The air pressure sensor 1 91 and the air pressure sensor 2 99 can both detect the air pressure and transmit the air pressure to the background monitoring system. When the air pressure exceeds a certain value, the staff is reminded to shut down the machine in time and inspect the machine.

[0033] When the out-gas pipe 3 is blocked or the internal gas pressure of the evaporator is suddenly increased, causing the gas pressure in the space on the right side of the heat insulation plate 2 to be too high, the gas pressure sensor 1 91 sends a signal, the motor 95 receives the signal, drives the lead screw 96 to rotate, and the connecting plate 98 moves towards the inside of the pressure relief tank 92, the gas in the space on the right side of the heat insulation plate 2 rushes into the pressure relief tank 92, to a certain extent, the gas pressure in the evaporator shell 1 is reduced, the explosion time is prolonged, the staff is reminded to repair the evaporator in time, and high pressure damage is avoided, when the gas pressure is increased to a certain degree again, the gas pressure sensor 1 91 and the gas pressure sensor 2 99 send an alarm at the same time, reminding the staff to evacuate nearby personnel and repair the evaporator, this design can remind the background staff twice, from the first reminder to the final high pressure damage explosion of the evaporator due to excessive gas pressure, a long time is experienced, the staff is reminded for a long time, and the staff playing neglect of duty and leaving post can be avoided to cause the explosion of the evaporator.

[0034] Working mode: water is injected into the evaporator shell 1 from the water inlet pipe 2, the water flow flows into the water outlet pipe 89 from the water inlet 41, then enters the capillary core 7 from the small hole in the water outlet pipe 89, the heating mechanism 6 is started, the capillary core 7 is heated, changes from liquid state to gas state, is discharged from the gas outlet 51 to the space on the right side of the heat insulation plate 2, and is then discharged from the out-gas pipe 3.

[0035] To sum up, only the preferred embodiments of the utility model are described above, and are not used to limit the implementation range of the utility model, that is, equivalent changes and modifications made according to the content of the patent application range of the utility model should belong to the technical range of the utility model.

Claims

1. A flat plate evaporator with an explosion-proof structure, comprising an evaporator housing (1), one end of the evaporator housing (1) being connected to a water inlet pipe (2), and the other end being connected to an air outlet pipe (3), characterized in that: A vertically arranged heat insulation board 1 (4) and a heat insulation board 2 (5) are fixed in the evaporator shell (1); a plurality of water inlets (41) are provided on the heat insulation board 1 (4); a plurality of air outlets (51) are provided on the heat insulation board 2 (5); a heating mechanism (6) is fixed between the heat insulation board 1 (4) and the heat insulation board 2 (5); a capillary core (7) is provided in the heating mechanism (6); the capillary core (7) is connected to the water inlet (41); a water replenishing mechanism (8) is provided on the side of the heat insulation board 1 (4) away from the heat insulation board 2 (5); and a pressure reducing mechanism (9) is provided on the side of the heat insulation board 2 (5) away from the heat insulation board 1 (4).

2. The flat plate evaporator with an explosion-proof structure according to claim 1, characterized in that: The evaporator shell (1) includes a base plate (11), the top of the base plate (11) is fixedly connected to a shell (12), the left side of the shell (12) is connected to the water inlet pipe (2), and the right side is connected to the air outlet pipe (3), a plurality of screw holes (16) are opened on the top of the shell (12), and a cover plate 1 (13), a cover plate 2 (14) and a cover plate 3 (15) are sequentially provided above the shell (12) from left to right, a plurality of bolts (17) are provided on the cover plate 1 (13), the cover plate 2 (14) and the cover plate 3 (15), and the bolts (17) are threadedly connected to the screw holes (16), and the cover plate 1 (13), the cover plate 2 (14) and the cover plate 3 (15) are bolted to the shell (12) through the bolts (17) and the screw holes (16).

3. The flat plate evaporator with an explosion-proof structure according to claim 1, characterized in that: The heating mechanism (6) includes a lower heating plate (61), the two ends of which are fixedly connected to the side walls of the first insulation plate (4) and the second insulation plate (5), and the bottom is fixedly connected to the top of the bottom plate (11). The top of the lower heating plate (61) is fixedly connected to a plurality of vertically arranged heating partitions (62), and the two ends of each heating partition (62) are fixedly connected to the side walls of the first insulation plate (4) and the second insulation plate (5). The capillary core (7) is arranged between the heating partitions (62) and between the heating partitions (62) and the inner wall of the shell. The top of the heating partition (62) is fixed with an upper heating plate (63), and a slot is provided in the upper heating plate (63). The height of the top wall of the upper heating plate (63) is lower than the height of the air outlet (51).

4. The flat plate evaporator with an explosion-proof structure according to claim 1, characterized in that: The water replenishing mechanism (8) includes a slope (81), which is arranged on the left side of the heat insulation board (4). A water level sensor (82) is fixed on the slope (81). The water replenishing mechanism (8) also includes a water outlet pipe (89), one end of which is connected to the water inlet (41). A plurality of small holes are provided on the side wall of the water outlet pipe (89). A connecting groove is provided in the capillary core (7). The water outlet pipe (89) is provided in the connecting groove. A water supply tank (83) is fixed on the top of the slope (81). The water supply tank (83) is hollow and has a water inlet hole (84) on its top wall. A telescopic rod (85) is fixed on the inner wall of the water supply tank (83). A spring (86) is provided inside the telescopic rod (85). A sealing cover (87) is fixed to one end of the telescopic rod (85). A card slot (88) is provided on the side wall of the water supply tank (83). The card slot (88) is engaged with the sealing cover (87).

5. The flat plate evaporator with an explosion-proof structure according to claim 1, characterized in that: The decompression mechanism (9) includes an air pressure sensor (91) fixed on the top of the bottom plate (11). A decompression box (92) is also fixed on the bottom plate (11). A second card slot (93) is provided on the side wall of the decompression box (92). A card plate (94) is clamped in the second card slot (93). A motor (95) is fixed on the inner side wall of the decompression box (92). The motor (95) can receive the signal sent by the air pressure sensor (91). The output end of the motor (95) is connected to a A screw rod (96) is rotatably connected to the other inner side wall of the decompression box (92). The screw rod (96) is arranged directly below the second card slot (93). A guide rod (97) is arranged parallel to one side of the screw rod (96). An "L"-shaped connecting plate (98) is connected to the screw rod (96) in a transmission manner. The connecting plate (98) is slidably connected to the guide rod (97). The top of the connecting plate (98) is fixedly connected to the card plate (94). A second air pressure sensor (99) is fixed to the bottom wall of the decompression box (92).

Images