CN211357771U - Evaporator and steam-water separation device thereof - Google Patents

Evaporator and steam-water separation device thereof Download PDF

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Publication number
CN211357771U
CN211357771U CN201921948214.6U CN201921948214U CN211357771U CN 211357771 U CN211357771 U CN 211357771U CN 201921948214 U CN201921948214 U CN 201921948214U CN 211357771 U CN211357771 U CN 211357771U
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separation device
steam
air outlet
evaporation
shell
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CN201921948214.6U
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Inventor
李文修
张晖栋
娄彤
林福全
徐传航
李斌洲
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Fujian Longking Co Ltd.
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Fujian Longking Co Ltd.
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Abstract

The utility model relates to an evaporator and a steam-water separation device thereof, wherein, the steam-water separation device comprises a shell and an opening and closing mechanism arranged in the shell; the shell is provided with an air inlet and an air outlet, the air inlet is communicated with an outlet of the evaporation separation device, the bottom of the shell is provided with a liquid collection part, and the liquid collection part is communicated with the evaporation separation device through a return pipe; the opening and closing mechanism comprises a sealing element and an action part, and when the liquid level in the liquid collection part reaches a preset height, the action part can act on the sealing element to seal the air outlet. When the conditions of severe pressure fluctuation working condition or insufficient height of the tank body of the small evaporation separator, failure of the liquid level control system and the like are met, the liquid in the evaporation separator is ensured not to enter a subordinate heat exchanger or a vacuum pump, and the safe operation of equipment is ensured.

Description

Evaporator and steam-water separation device thereof
Technical Field
The utility model relates to an evaporation equipment technical field, concretely relates to evaporimeter and catch water thereof.
Background
In the existing evaporator, a baffle plate or baffle plate type, steam-rotary type and adsorption type steam-water separation devices are arranged in an evaporation separation device tank body at an outlet position or an outlet section pipeline and matched with a return pipe to collect droplets brought out by the blocked steam and make liquid flow back to the evaporation separation device, and the steam is discharged to enter a next-stage heat exchange device or a condenser.
When the conditions of severe pressure fluctuation working conditions or insufficient height of a tank body of the small evaporation separation device, a liquid level control system fault and the like occur, the liquid level in the tank body of the evaporation separation device is changed sharply and exceeds the separation capacity of a conventional steam-water separation device, the effect of the steam-water separation device is greatly reduced, evaporated liquid cannot be prevented from entering a lower-level heat exchanger or a vacuum pump, and the safe operation of equipment is seriously influenced.
Therefore, when the conditions of severe pressure fluctuation working conditions or insufficient tank height of the evaporation separator, liquid level control system faults and the like are met, the liquid in the evaporation separator is ensured not to enter a subordinate heat exchanger or a vacuum pump, the safe operation of equipment is ensured, and the technical problem to be solved by technical personnel in the field is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an evaporimeter and catch water thereof, when meetting the violent undulant operating mode of pressure or small-size evaporation separator jar body height not enough, during the circumstances such as liquid level control system trouble, ensure that the liquid in the evaporation separator can not get into subordinate's heat exchanger or vacuum pump in, guarantee the safe operation of equipment.
In order to solve the technical problem, the utility model provides a steam-water separation device of an evaporator, which comprises a shell and an opening and closing mechanism arranged in the shell; the shell is provided with an air inlet and an air outlet, the air inlet is communicated with an outlet of the evaporation separation device, the bottom of the shell is provided with a liquid collection part, and the liquid collection part is communicated with the evaporation separation device through a return pipe; the opening and closing mechanism comprises a sealing piece and an action part, and when the liquid level in the liquid collecting part reaches a preset height, the action part can act on the sealing piece to seal the air outlet.
Under the normal working condition of the evaporator, the sealing element is separated from the air outlet, after water vapor flowing out of an outlet of the evaporation separation device enters the shell along the air inlet, the water vapor can flow out along the air outlet, evaporated liquid falls to the liquid collection part along the wall surface in the shell and flows back to the evaporation separation device along the return pipe, when the conditions of severe pressure fluctuation working condition or insufficient height of a tank body of the evaporation separation device, failure of a liquid level control system and the like are met, the water vapor flowing out of the outlet of the evaporation separation device contains a large amount of evaporated liquid, at the moment, when the flow of the evaporated liquid entering the water separation device is too large, the return pipe does not reach the return flow, the liquid level in the liquid collection part is abnormally raised, when the liquid level reaches the preset height, the action part can act on the sealing element to seal the sealing element and close the air outlet, at the, and can only flow back to the evaporation separation device along the back flow, so set up, can guarantee that the evaporating liquid in the evaporation separation device can not flow to the subordinate's evaporimeter along the gas outlet in, effectively avoid the emergence of the race material condition, and then guarantee the safe operation of equipment.
The utility model provides a steam-water separation device, on original steam-water separation device's basis, only can realize preventing the effect of running the material through addding sealing member and action portion, simple structure, cost are lower, are suitable for and use widely.
Optionally, the actuating portion includes a first guiding portion, a second guiding portion and a floating ball fixedly arranged at a bottom end of the first guiding portion, the sealing member is fixedly arranged at the first guiding portion, the second guiding portion is fixedly arranged at the housing, and the first guiding portion can move relative to the second guiding portion; the rising of the liquid level in the liquid collecting part can push the first guide part to move along the second guide part through the floating ball and drive the sealing element to rise to block the air outlet.
Optionally, the casing is further internally provided with an isolation cavity communicated with the gas outlet, the bottom wall of the isolation cavity is provided with an opening matched with the sealing element, and the first guide part moves along the second guide part to drive the sealing element to open and close the opening.
Optionally, a baffle plate arranged opposite to the air inlet is further arranged in the shell.
Optionally, the baffle forms a side wall of the isolation chamber.
Optionally, the baffle divides the inner cavity of the housing into an air inlet cavity and an air outlet cavity, the bottoms of the air inlet cavity and the air outlet cavity are communicated, the air inlet cavity is communicated with the air inlet, and the air outlet cavity is communicated with the air outlet; the gas outlet cavity is formed by the partition board and the baffle, the upper part of the gas outlet cavity is separated to form the isolation cavity, and the opening is formed in the partition board.
Optionally, the second guiding part is two supports arranged at intervals on the inner wall of the housing, each support is provided with a guiding hole, and the first guiding part is a guiding rod capable of sliding along the axial direction of the guiding hole.
Optionally, the return pipe is arranged obliquely, and one end of the return pipe facing the liquid collecting part is higher than one end of the return pipe facing the evaporation separation device, and the return pipe is provided with a check valve.
Additionally, the utility model also provides an evaporator, it includes circulating pump, heat exchanger, evaporation and separation device and as above the steam-water separation device, the heat exchanger with evaporation and separation device passes through the circulation pipeline intercommunication, the circulating pump is located circulation pipeline provides circulation power.
The evaporator with the steam-water separation device has the technical effect similar to that of the steam-water separation device, and is not repeated herein for saving space.
Optionally, a defoaming part is further arranged on one side of the evaporation separation device facing the outlet.
Drawings
Fig. 1 is a schematic structural diagram of an evaporator provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of the steam-water separating device in fig. 1.
In FIGS. 1-2, the reference numbers are illustrated as follows:
10-a steam-water separation device; 20-a circulating pump; 30-a heat exchanger; 40-evaporation separation device, 41-outlet; 50-a foam removing part; 60-a circulation line;
1-shell, 11-air inlet, 12-air outlet, 13-liquid collecting part, 14-air inlet cavity, 15-air outlet cavity, 16-isolating cavity and 17-opening; 2-a seal; 3-action part, 31-guide one part, 32-guide two part, 33-floating ball; 4-a return pipe; 5-a check valve; 6-a baffle plate; 7-a separator.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an evaporator according to an embodiment of the present invention; fig. 2 is a schematic structural view of the steam-water separating device in fig. 1.
The embodiment of the utility model provides an evaporimeter and water separator 10 thereof, wherein, as shown in figure 1, the evaporimeter includes circulating pump 20, heat exchanger 30, evaporation separator 40 and water separator 10, connect through circulation pipeline 60 between heat exchanger 30 and the evaporation separator 40 in order to form a circulation water route, circulating pump 20 communicates in this circulation pipeline 60 and can provide circulation power, make working medium solution (thick liquid) in the evaporation separator 40 get into heat exchanger 30 along circulation pipeline 60 and heat up the back again along circulation pipeline 60 in evaporation separator 40, this circulation heating process is carried out continuously, make working medium solution temperature in the evaporation separator 40 rise even boil, steam will enter into above-mentioned water separator 10 along this evaporation separator 40's export 41, and finally make working medium solution in the evaporation separator 40 realize concentrating through the evaporation, is favorable for recycling or discharge treatment.
Specifically, as shown in fig. 2, the steam-water separation device 10 includes a housing 1 and an opening and closing mechanism disposed in the housing 1, wherein the housing 1 is provided with an air inlet 11 and an air outlet 12, the air inlet 11 is communicated with an outlet 41 of the evaporation separation device 40, the bottom of the housing 1 is provided with a liquid collecting part 13, the liquid collecting part 13 is communicated with the evaporation separation device 40 through a return pipe 4, that is, steam (containing steam and evaporated liquid) flowing out from the outlet 41 of the evaporation separation device 40 enters the housing 1 along the air inlet 11, the steam in the housing 1 flows out from the air outlet 12 and enters the heat exchanger 30 of the lower-stage evaporator as a heat source or a condenser to be condensed into pure water for recycling, and the evaporated liquid falls into the liquid collecting part 13 along the wall surface in the housing 1 and flows back into the evaporation separation device 40 along the return pipe 4 to participate in heating and evaporation again.
The opening and closing mechanism comprises a sealing element 2 and an action part 3, wherein the action part 3 can act on the sealing element 2 to enable the sealing element to be matched with or separated from the air outlet 12 so as to close or open the air outlet 12, specifically, when the liquid level in the liquid collecting part 13 reaches a preset height, the action part 3 can act on the sealing element to enable the sealing element to move to give out air, the sealing element is matched with and blocks the air outlet 12, and at the moment, steam in the shell 1 cannot flow out along the air outlet 12.
In detail, in the normal working condition of the evaporator, the sealing element 2 is separated from the air outlet 12, after the steam flowing out from the outlet 41 of the evaporation separation device 40 enters the casing 1 along the air inlet 11, the steam can flow out along the air outlet 12, the evaporated liquid falls down to the liquid collecting part 13 along the wall surface in the casing 1 and flows back to the evaporation separation device 40 along the return pipe 4, when the conditions of severe pressure fluctuation, insufficient tank height of the evaporation separation device 40, failure of a liquid level control system and the like occur, the steam flowing out from the outlet 41 of the evaporation separation device 40 contains a large amount of evaporated liquid, at the moment, when the flow rate of the evaporated liquid entering the steam-water separation device 10 is too large, the return pipe 4 cannot come to flow back, the liquid level in the liquid collecting part 13 is abnormally increased, when the liquid level reaches a preset height, the action part 3 can act on the sealing element 2 to block and close the air outlet 12, at this moment, no matter steam or evaporating liquid can not flow out from the air outlet 12, and can only flow back to the evaporation separation device 40 along the return pipe 4, so set up, can guarantee that the evaporating liquid in the evaporation separator can not flow out to the evaporator of subordinate along the air outlet 12, effectively avoid the emergence of the race material condition, and then guarantee the safe operation of equipment.
Specifically, the preset height in the present embodiment is not specifically limited, and may be set according to the height of the housing 1, the position of the air outlet 12, the size of the liquid collecting portion 13, and the like.
In this embodiment, on the basis of original steam-water separation device 10, only through addding sealing member 2 and action portion 3 can realize preventing the effect of running the material, simple structure, cost are lower, are suitable for using widely.
In the above embodiment, as shown in fig. 2, the acting part 3 includes a first guiding part 31, a second guiding part 32 and a floating ball 33 fixed at the bottom end of the first guiding part 31, the sealing member 2 is fixed at the first guiding part 31, the second guiding part 32 is fixed at the housing 1, the first guiding part 31 can move relative to the second guiding part 32, and the liquid level in the liquid collecting part 13 can rise and fall through the floating ball 33 to push the first guiding part 31 to move along the second guiding part 32 and drive the sealing member 2 to open and close the air outlet 12. When the evaporator fails and the liquid level in the liquid collecting part 13 rises to a preset height, the floating ball 33 rises along with the rise of the liquid level until the first guide part 31 moves along the second guide part 32 and drives the sealing element 2 to move to block the air outlet 12, at the moment, the air outlet 12 is in a closed state, and as the air outlet 12 is in a negative pressure state in a pipeline connected with the next-stage evaporator or condenser, the sealing performance of the sealing element 2 is more stable, the sealing effect of the sealing element 2 cannot be relieved before the failure is eliminated, the material leakage condition is effectively prevented, and after the failure is eliminated, the sealing element 2 and the first guide part 31 can fall along with the floating ball 33 under the action of gravity by adjusting the negative pressure state, and the normal operation condition of the steam-water separation device 10 is recovered.
Or, in this embodiment, can also set up action portion 3 as including liquid level switch and driving piece, when the liquid level in liquid collection portion 13 reached to predetermine the height, liquid level switch was triggered, and driving piece drive sealing member 2 shutoff gas outlet 12 is so that gas outlet 12 is in the encapsulated situation, and when liquid level switch closed, the drive effect of driving piece was not in, sealing member 2 with gas outlet 12 break away from can. When the operation part 3 is configured to include the first guide part 31, the second guide part 32 and the floating ball 33, the operation part 3 utilizes the buoyancy effect of the liquid level in the liquid collecting part 13 on the floating ball 33, no power source or external driving force is needed, the air outlet 12 can be blocked after the sealing element 2 rises due to the guiding effect between the first guide part 31 and the second guide part 32, the opening and closing of the air outlet 12 are realized only through a physical structure, and the structure is stable, the effect is good, the energy is saved, the environment is protected, and the economical efficiency is good.
In the above embodiment, the housing 1 is further provided with an isolation chamber 16 communicated with the air outlet 12, the bottom wall of the isolation chamber 16 is provided with an opening 17 matched with the sealing element 2, and the first guide portion 31 moves along the second guide portion 32 to drive the sealing element 2 to be matched with or separated from the opening 17. With this arrangement, the sealing member 2 is not directly engaged with the air outlet 12, but is engaged with the opening 17 formed in the bottom wall of the isolation chamber 16, so that the design requirement and the manufacturing process of the sealing member 2 can be simplified, and the sealing effect of the sealing member 2 on the air outlet 12 can be ensured.
In the above embodiment, the casing 1 is further provided with the baffle 6 disposed opposite to the air inlet 11, and the steam flowing out from the outlet 41 of the evaporation separation device 40 can directly blow toward the baffle 6 after entering the casing 1, so that the liquid drops entrained in the steam fall into the liquid collecting portion 13 along the baffle 6, and the liquid drops in the steam are prevented from being discharged from the air outlet 12 together with the steam. Alternatively, in this embodiment, the air inlet 11 may be disposed opposite to the inner wall of the housing 1, the liquid droplets entering the housing 1 from the air inlet 11 will fall along the inner wall of the housing 1, and the arrangement of the baffle 6 may simplify the structure of the housing 1, thereby facilitating the design and manufacturing process.
Further, the baffle 6 forms a side wall of the isolation chamber 16, that is, the baffle 6 and the isolation chamber 16 are of an integral structure, so that the overall structure of the steam-water separation device 10 can be simplified, and the arrangement and assembly operation of the internal structure can be facilitated.
Furthermore, the baffle 6 divides the inner cavity of the shell 1 into an air inlet cavity 14 and an air outlet cavity 15, wherein the bottom of the air inlet cavity 14 is communicated with the bottom of the air outlet cavity 15, the air inlet cavity 14 is communicated with the air inlet 11, the air outlet cavity 15 is communicated with the air outlet 12, the steam-water separation device 10 further comprises a partition plate 7 arranged in the air outlet cavity 15, the partition plate 7 and the baffle 6 can divide the upper part of the air outlet cavity 15 to form the isolation cavity 16, and the opening 17 is arranged in the isolation cavity 16. The steam entering the air inlet cavity 14 from the air inlet 11 directly blows to the baffle 6, the liquid drops fall into the liquid collecting part 13 along the baffle 6, and the steam flows into the air outlet cavity 15 from the bottom of the air inlet cavity 14, enters the isolation cavity 16 along the opening 17 and then is discharged through the air outlet 12.
Or, in this embodiment, the isolation cavity 16 may be a separate box, the bottom wall of the box is provided with the opening 17, the baffle 6 may be a side wall of the box, and the box is integrally fixed to the housing 1, and in the above-mentioned baffle 6 and the partition 7, only the baffle 6 longitudinally disposed and the partition 7 transversely disposed are disposed in the housing 1 of the steam-water separation device 10, so that the sealing effect of the sealing element 2 is conveniently achieved while the separation of steam and liquid droplets in the steam is achieved, and the structure is simple and economical.
In the above embodiment, the second guiding portion 32 is two spaced brackets provided on the side wall of the housing 1, each bracket is provided with a guiding hole, and the first guiding portion 31 is a guiding rod capable of sliding along the axial direction of the guiding hole. Or, the second guiding portion 32 may be configured as a sliding way (e.g., a sliding rail or a sliding groove) disposed on the inner wall of the housing 1, and the second guiding portion 32 may be configured as a structure having a sliding block capable of sliding along the sliding way, so that the first guiding portion 31 can move along a predetermined direction relative to the second guiding portion 32, and the first guiding portion 31 is configured as a guiding rod, the second guiding portion 32 is configured as two supports disposed at intervals, and the supports are provided with guiding holes adapted to the guiding rod.
In the above embodiment, the return pipe 4 is disposed obliquely, and one end of the return pipe 4 facing the liquid collecting portion 13 is higher than one end facing the evaporation separation device 40, the return pipe 4 is provided with the check valve 5, the check valve 5 is a one-way valve, the evaporated liquid in the liquid collecting portion 13 can flow back into the evaporation separation device 40 along the return pipe 4, and the evaporated liquid in the evaporation separation device 40 cannot flow into the liquid collecting portion 13 along the return pipe 4. Alternatively, in this embodiment, the return pipe 4 may be a U-shaped pipe, and one end of the U-shaped pipe facing the liquid collecting portion 13 is higher than one end facing the evaporation and separation device 40, so that the evaporated liquid in the liquid collecting portion 13 can be returned to the evaporation and separation device 40 in one direction. When the return pipe 4 is set to be of an inclined structure and provided with the check valve 5, the situation that the return pipe 4 is blocked due to the fact that solids mixed in working medium solution are deposited in the U-shaped pipe can be avoided.
In addition, in the embodiment, a defoaming portion 50 is further disposed on a side of the evaporation separation device 40 facing the outlet 41, and is used for intercepting liquid droplets in the water vapor to reduce outflow of the evaporated liquid, specifically, the defoaming portion 50 may be one of a baffle demister, a wire mesh demister, and a cyclone demister, or a combination of any two or three of them, and is not limited herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The steam-water separation device of the evaporator is characterized by comprising a shell (1) and an opening and closing mechanism arranged in the shell (1);
the shell (1) is provided with an air inlet (11) and an air outlet (12), the air inlet (11) is communicated with an outlet (41) of the evaporation separation device (40), the bottom of the shell (1) is provided with a liquid collecting part (13), and the liquid collecting part (13) is communicated with the evaporation separation device (40) through a return pipe (4);
the opening and closing mechanism comprises a sealing element (2) and an action part (3), and when the liquid level in the liquid collection part (13) reaches a preset height, the action part (3) can act on the sealing element (2) to seal the air outlet (12).
2. The steam-water separator of evaporator according to claim 1, characterized in that the action part (3) comprises a first guide part (31), a second guide part (32) and a floating ball (33) fixed at the bottom end of the first guide part (31), the sealing element (2) is fixed at the first guide part (31), the second guide part (32) is fixed at the housing (1), and the first guide part (31) can move relative to the second guide part (32);
the rising of the liquid level in the liquid collecting part (13) can push the first guide part (31) to move along the second guide part (32) through the floating ball (33) and drive the sealing element (2) to rise to block the air outlet (12).
3. The steam-water separation device of the evaporator is characterized in that an isolation cavity (16) communicated with the air outlet (12) is further arranged in the shell (1), an opening (17) matched with the sealing element (2) is formed in the bottom wall of the isolation cavity (16), and the first guide part (31) can move along the second guide part (32) to drive the sealing element (2) to open and close the opening (17).
4. The steam-water separator of evaporator according to claim 3, characterized in that a baffle (6) is arranged in the shell (1) and opposite to the air inlet (11).
5. Steam-water separator for evaporators according to claim 4, characterized in that said baffle (6) forms a side wall of said insulating chamber (16).
6. The steam-water separation device of the evaporator as recited in claim 5, characterized in that the baffle (6) divides the inner cavity of the shell (1) into an air inlet cavity (14) and an air outlet cavity (15) which are communicated with each other at the bottom, the air inlet cavity (14) is communicated with the air inlet (11), and the air outlet cavity (15) is communicated with the air outlet (12);
still including locating baffle (7) in the chamber of giving vent to anger (15), baffle (7) with baffle (6) will the upper portion of the chamber of giving vent to anger (15) is separated and is formed keep apart chamber (16), opening (17) are located baffle (7).
7. The steam-water separator of evaporator according to any one of claims 2-6, wherein the second guiding portion (32) is two spaced brackets disposed on the inner wall of the housing (1), each bracket is provided with a guiding hole, and the first guiding portion (31) is a guiding rod capable of sliding along the axial direction of the guiding hole.
8. Steam-water separator for evaporators according to any of claims 1 to 6, wherein said return pipe (4) is arranged obliquely and the end of said return pipe (4) facing said sump (13) is higher than the end facing said evaporative separator (40), said return pipe (4) being provided with a non-return valve (5).
9. An evaporator, characterized by comprising a circulating pump (20), a heat exchanger (30), an evaporation and separation device (40) and the steam-water separation device (10) as set forth in any one of claims 1 to 8, wherein the heat exchanger (30) and the evaporation and separation device (40) are communicated through a circulating pipeline (60), and the circulating pump (20) is arranged on the circulating pipeline (60) and provides circulating power.
10. The steam-water separator of evaporator according to claim 9, wherein a defoaming part (50) is further provided in the evaporation separator (40) on the side facing the outlet (41).
CN201921948214.6U 2019-11-12 2019-11-12 Evaporator and steam-water separation device thereof Active CN211357771U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921948214.6U CN211357771U (en) 2019-11-12 2019-11-12 Evaporator and steam-water separation device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921948214.6U CN211357771U (en) 2019-11-12 2019-11-12 Evaporator and steam-water separation device thereof

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Publication Number Publication Date
CN211357771U true CN211357771U (en) 2020-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116240872A (en) * 2023-03-20 2023-06-09 中国十七冶集团有限公司 Novel vacuum pump for drainage of soft foundation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116240872A (en) * 2023-03-20 2023-06-09 中国十七冶集团有限公司 Novel vacuum pump for drainage of soft foundation
CN116240872B (en) * 2023-03-20 2024-05-31 中国十七冶集团有限公司 Soft foundation drainage vacuum pump

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