CN115435610A

CN115435610A - Defogging device is retrieved to circulating water cooling tower evaporation steam

Info

Publication number: CN115435610A
Application number: CN202111511657.0A
Authority: CN
Inventors: 赵龙; 焦娇; 赵东阳; 赵钰菡
Original assignee: Hebei Shengrun Frp Co ltd
Current assignee: Hebei Shengrun Frp Co ltd
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2022-12-06

Abstract

The invention belongs to the technical field of demisting of cooling towers, and discloses a demisting device for recovering evaporated water vapor of a circulating water cooling tower, which comprises a demister, wherein the demister comprises: the device comprises at least two parallel baffle plates arranged in a staggered manner, wherein each baffle plate comprises at least two first straight plates and at least one first bent part, the first straight plates and the first bent parts are connected in a staggered manner, and the first bent parts enable two sides of each baffle plate to form an inner concave part and an outer convex part respectively; a demisting channel is formed between every two adjacent baffle plates in a surrounding manner, and in the two adjacent baffle plates which are in staggered fit, the joint of the first straight plate and the first bent part of one baffle plate corresponds to the first straight plate or the first bent part of the other baffle plate; the plurality of flow limiting assemblies are arranged in the demisting channel in an end-to-end matching manner, and each flow limiting assembly comprises a flow limiting plate capable of rotating independently; the conduction area of the conduction part is changed through the rotation of the current limiting plate.

Description

Defogging device is retrieved to circulating water cooling tower evaporation steam

Technical Field

The invention belongs to the technical field of cooling tower demisting, and particularly relates to a demisting device for recycling evaporation water vapor of a circulating water cooling tower.

Background

The cooling tower is used for carrying out heat or heat-mass exchange between circulating water carrying waste heat and air in the tower, transmitting the heat of the water to the air and dispersing the heat into the atmosphere, so as to cool the circulating water. The cooling tower is divided into a wet cooling tower (heat and mass exchange) and a dry cooling tower (heat exchange) according to different contact modes of circulating water and air.

In the wet cooling tower, circulating water is sprayed on the surface of the packing and is in direct contact with air on the surface of the packing, so that heat and mass exchange is realized. The wet cooling tower has high heat exchange efficiency, but part of the circulating water is evaporated to form mist water vapor in the heat and mass exchange process and then is exhausted along with the air, so that the loss of part of the circulating water is caused.

In order to solve the above problems, a plate-type demister is often installed at an exhaust of a wet cooling tower in the prior art, so as to achieve demisting and recovery of evaporated water vapor. For the existing plate-type demisting device, the plate-type demisting device is mainly composed of a plurality of baffle plates in a combined mode, so that fog/gas separation is achieved through multiple times of impact of airflow, the baffle plates are fixedly installed, the conduction area of each demisting channel is limited, and the existing plate-type demisting device is difficult to keep a good demisting effect under different working conditions.

Disclosure of Invention

In view of this, the present invention provides a demisting device for recycling evaporated water vapor of a circulating water cooling tower, so as to solve the existing problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a defogging device is retrieved to circulating water cooling tower evaporation steam, includes the defroster, just the defroster includes:

the device comprises at least two parallel baffle plates arranged in a staggered manner, wherein each baffle plate comprises at least two first straight plates and at least one first bent part, the first straight plates and the first bent parts are connected in a staggered manner, and the first bent parts enable two sides of each baffle plate to form an inner concave part and an outer convex part respectively; a demisting channel is formed between every two adjacent baffle plates in a surrounding manner, and in the two adjacent baffle plates which are in staggered fit, the joint of the first straight plate and the first bent part of one baffle plate corresponds to the first straight plate or the first bent part of the other baffle plate;

the plurality of flow limiting assemblies are arranged in the demisting channel in an end-to-end matched manner, each flow limiting assembly comprises a flow limiting plate capable of independently rotating, and each flow limiting plate comprises a second straight plate and a second bent part which are connected with each other; the flow limiting plate divides the demisting channel into two parts, wherein one part is a closed part, the other part is a conducting part, the outer convex side of the second bent part faces the conducting part, the second bent part corresponds to the inner concave part of the baffle plate on one side of the conducting part, and the conducting area of the conducting part is changed through rotation of the flow limiting plate.

Preferably, the first bent portion includes:

the first guide plate is parallel to the first straight plate and is positioned on one side of the first straight plate;

the first connecting plates are symmetrically fixed at two ends of the first guide plate and are used for connecting the first guide plate with the first straight plate.

Preferably, the flow restricting assembly further comprises: the rotating roller is fixed at one end of the flow limiting plate, the rotating roller and the second bending part are respectively connected to two ends of the second straight plate, the surface of the rotating roller is tangent to the second straight plate, and the rotating roller is located in the closed part.

Preferably, the second bending part includes:

the second guide plate is parallel to the first guide plate, the length of the second guide plate is less than that of the first guide plate, and in the conducting part, the distance between the second guide plate and the first guide plate does not exceed the radius of the rotating roller;

the second connecting plate is fixed at one end of the second guide plate and used for connecting the second guide plate and the second straight plate, and the included angle between the second guide plate and the second connecting plate is equal to the included angle between the first guide plate and the first connecting plate;

and the circle center of the arc plate and the rotating axis of the flow limiting plate are positioned at the same position, and the arc plate is in circumscribed fit with the rotating roller.

Preferably, a guide strip is fixed on one side of each first straight plate, and one side of each guide strip is set to be an arc shape matched with the rotary roller.

Preferably, the demister further comprises: the baffle plate and the flow limiting assembly are arranged between the two fixed plates.

Preferably, the defroster sets up in the circulating water cooling tower, the circulating water cooling tower includes the tower body, and is in the position department that is located the defroster below in the tower body has set gradually storage water tank, cooling recovery structure subtotal water collector by supreme down: the water collector includes:

at least two water collecting tanks arranged in parallel;

connect the water guide subassembly between two adjacent water catch bowl, just the water guide subassembly includes two swash plates that incline opposite direction, the swash plate bottom is connected with the water catch bowl lateral wall, and one of them swash plate top extends to another swash plate top to reserve the air gap before two swash plates.

Preferably, the sump further includes:

a water guide pipeline; the bottoms of the at least two water collecting grooves are communicated with the water guide pipeline, and the water guide pipeline penetrates through the position where the cooling recovery structure part is located and guides the water in the water collecting grooves to the water storage tank.

Preferably, an air inlet is formed in the side wall of the tower body, a fan is mounted at the top of the tower body, the air inlet is used for introducing air into the tower body, and the fan is used for pumping out the air in the tower body.

Preferably, the cooling recovery structure part includes:

the spraying pipe penetrates through one side of the tower body, is positioned below the water collector, and is equidistantly provided with a plurality of rotary spray heads;

the packing layer is fixed in the tower body and is positioned below the spraying pipe;

and the filter is communicated with the air inlet, and the air inlet and the filter are both positioned between the packing layer and the water storage tank.

Compared with the prior art, the invention has the following beneficial effects:

(1) In the invention, two adjacent baffle plates are arranged in a staggered way, so that a rotatable current-limiting assembly is conveniently arranged between the staggered inner concave part and the staggered outer convex part, the current-limiting assembly comprises a current-limiting plate matched with the baffle plates, and the current-limiting plate divides a demisting channel between the two adjacent baffle plates into a closed part and a conducting part;

the flow guide plate is matched with the flow limiting plate to ensure that the conducting part has good flow baffling, so that the recovery of water mist is effectively realized; in addition, the conduction area of the conduction part can be effectively changed based on the rotation of the current limiting plate, so that the flow rate of the evaporated water vapor is conveniently limited according to the actual working condition on the one hand, and the defogging effect is conveniently improved on the other hand.

(2) To above-mentioned current-limiting plate, mainly including the second straight board that connects gradually, second even board and second baffle, and after current-limiting plate orientation conducting part rotated, wherein the second straight board and first straight board, all constitute between second baffle and the first baffle and advance to hold big, the little conducting structure of play end, evaporation steam flow rate increases gradually in this conducting structure, make evaporation steam collide even board or first even board to the second with higher speed from this, thereby further promotion whole defogging device's defogging effect.

(3) To above-mentioned current limiting component, set up respectively at its both ends and change roller and arc board, wherein change the convenient rotation that realizes whole current limiting component of roller, the arc board guarantees that two adjacent current limiting components are in the tangent state of head and the tail all the time, effectively avoids evaporating in the steam inflow seal part from this, and then promotes the rate of recovery of evaporating steam.

(4) And aiming at the baffle plate, a diversion strip is fixed at the position corresponding to the rotary roller, so that the sealing effect in the closed part is further improved.

Drawings

FIG. 1 is a schematic diagram illustrating a defogging device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a defogging device according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a perspective view of a defogging device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a second defogging device according to an embodiment of the present invention;

FIG. 6 is a schematic view of a baffle plate in the defogging device of the present invention;

FIG. 7 is a schematic structural diagram of a current-limiting assembly in the defogging device of the present invention;

FIG. 8 is a schematic view of the assembly of two baffles in the defogging device of the present invention;

FIGS. 9-10 are schematic diagrams illustrating the flow restriction of the flow restriction assembly of the defogging device for restricting the flow of the defogging channels in accordance with the present invention;

FIG. 11 is a schematic view showing the structure of a circulating water cooling tower for installing the defogging device of the present invention;

FIG. 12 is an enlarged view of FIG. 11 at B;

in the figure: a tower body-1; a water storage tank-2; a water collector-3; a water collection tank-31; a water guide assembly-32; a water guide pipeline-33; a demister-4; a baffle-41; a first straight plate-411; a first bend-412; a first guide-413; a first web-414; a flow guide strip-415; a demisting passage-42; a flow-limiting assembly-43; restrictor plate-431; a second straight panel-432; a second bent portion-433; rotating roller-434; a second guide plate-435; a second tie plate-436; an arc plate-437; a fixed plate-44; a fan-5; spray pipe-6; a packing layer-7; a filter-8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 to 10, the present invention provides a demisting device for recovering evaporated water vapor from a circulating water cooling tower, the demisting device mainly includes a demister 4, and the demister 4 includes the following structure:

at least two parallel baffle plates 41 arranged in a staggered manner, wherein each baffle plate 41 comprises at least two first straight plates 411 and at least one first bent part 412, the first straight plates 411 and the first bent parts 412 are connected in a staggered manner, and the first bent parts 412 enable two sides of the baffle plate 41 to form an inner concave part and an outer convex part respectively; a demisting channel 42 is formed between two adjacent baffle plates 41 in an enclosing manner, and in the two adjacent baffle plates 41 which are in staggered fit, the connection position of the first straight plate 411 and the first bent part 412 of one baffle plate 41 corresponds to the first straight plate 411 or the first bent part 412 of the other baffle plate 41;

a plurality of flow restricting assemblies 43 arranged in the demisting channel 42 in an end-to-end matching manner, each flow restricting assembly 43 comprises a flow restricting plate 431 capable of rotating independently, and each flow restricting plate 431 comprises a second straight plate 432 and a second bent part 433 which are connected with each other; the flow restriction plate 431 divides the defogging channel 42 into two parts, one part is a closed part, the other part is a conducting part, the outer convex side of the second bent part 433 faces the conducting part, the second bent part 433 corresponds to the inner concave part of the baffle plate 41 on one side of the conducting part, and the conducting area of the conducting part is changed by the rotation of the flow restriction plate 431.

The above description, taken in conjunction with the drawings, reveals that:

regarding the matching of two adjacent baffles 41, in fig. 8, the position i of the right baffle 41 corresponds to the first bent part 412 of the left baffle 41, the position ii of the right baffle 41 corresponds to the first straight plate 411 of the left baffle 41, and both the positions i and ii are the connection positions of the first straight plate 411 and the first bent part 412 in the right baffle 41. Preferably, the definition ii corresponds to the middle position of the first straight plate 411.

Regarding the fitting of the baffle 41 to the flow restriction assembly 43, in fig. 9, it is preferable to provide the second straight plate 432 closely adjacent to the first bent part 412 of the left baffle 41 when the second straight plate 432 is at the initial position, and to provide the end of the second bent part 433 away from the second straight plate 432 closely adjacent to the first straight plate 411 of the left baffle 41, so as to ensure the second bent part 433 is reasonably fitted to the inner concave part of the right baffle 41.

Specifically, as can be seen from fig. 6, in the baffle plate 41, the first bent portion 412 includes:

a first guide 413 parallel to the first straight plate 411, the first guide 413 being located at one side of the first straight plate 411;

the first connecting plates 414 are symmetrically fixed at two ends of the first guide plate 413, and the first connecting plates 414 are used for connecting the first guide plate 413 and the first straight plate 411.

In particular, as can be seen in conjunction with fig. 7, with regard to the above-described flow restricting assembly 43,

the current limiting assembly 43 further includes: the rotating roller 434 fixed at one end of the restrictor plate 431, the rotating roller 434 and the second bent portion 433 are respectively connected to two ends of the second straight plate 432, the surface of the rotating roller 434 is tangent to the second straight plate 432, and the rotating roller 434 is located in the closed portion.

The second bent portion 433 includes:

a second guide plate 435 parallel to the first guide plate 413, the second guide plate 435 having a length smaller than that of the first guide plate 413, and in a turn-on portion, a distance between the second guide plate 435 and the first guide plate 413 does not exceed a radius of the rotating roller 434;

a second connecting plate 436 fixed at one end of the second guide plate 435, wherein the second connecting plate 436 is used for connecting the second guide plate 435 and the second straight plate 432, and an included angle between the second guide plate 435 and the second connecting plate 436 is equal to an included angle between the first guide plate 413 and the first connecting plate 414;

and the arc plate 437 is fixed at the other end of the second guide plate 435, the circle center of the arc plate 437 and the rotation axis of the current limiting plate 431 are located at the same position, and the arc plate 437 is in circumscribed fit with the rotating roller 434.

As can be seen from the above and in conjunction with fig. 9, regarding the second bent portion 433 corresponding to the concave portion of the baffle plate 41 on one side of the conducting portion, wherein the second connecting plate 436 is parallel to the first connecting plate 414 at p, and preferably, the distance between the first straight plate 411 and the second straight plate 432 is defined to be equal to the distance between the second connecting plate 436 and the first connecting plate 414 at p.

As described above, the rotation of the entire current limiting assembly 43 can be realized based on the rotation of the rotary rollers 434, the rotary rollers 434 can be automatically driven by the motor component, and for a plurality of rotary rollers 434, transmission structures such as gears, chains and belts can be arranged among the rotary rollers 434, so as to ensure that the rotary rollers 434 synchronously rotate in the same direction.

As can be seen from fig. 9 and 10, when the integrated restrictor 43 is rotated toward the side of the communicating portion, the integrated restrictor 431 is inclined, and the communicating structure shown in fig. 10 is formed between the restrictor 431 and the right baffle 41. Specifically, in fig. 10, the evaporated water vapor moves from a to d, and based on the inclination of the flow restriction plate 431, the conduction areas at the four positions of a/b/c/d are sequentially reduced, so that the evaporated water vapor is ensured to form a state of multi-level flow rate increase under the conduction structure, and the evaporated water vapor collides with the second connecting plate 436 or the first connecting plate 414 at a higher speed, thereby effectively improving the defogging effect of the overall defogging device. After the evaporated moisture hits the second connecting plate 436 or the first connecting plate 414, the mist of the evaporated moisture adheres and forms a collection at the deflection position shown in fig. 9 as the adhered mist increases, and the mist is collected into water drops and falls back along the defogging channel 42. Preferably, in order to ensure smooth fall-back of the water drops, the first connecting plate 414 is disposed in an inclined state, and an angle between the first connecting plate 414 and the first guide plate 413 is preferably 135 °.

To sum up: for the unstable operating mode of evaporation steam velocity of flow, can guarantee the stability of evaporation steam velocity of flow based on the rotation regulation of above-mentioned current-limiting component 43. For the operating conditions that vapor recovery requires difference, defogging efficiency may also be adjusted based on the rotation adjustment of above-mentioned current limiting assembly 43.

Preferably, a guide strip 415 is fixed to one side of each first straight plate 411, and the top of the guide strip 415 is configured to be arc-shaped to match with the rotating roller 434. When the roller 434 is rotated to any angle, the closed part and the conduction part on both sides of the current-limiting component 43 will not interfere with each other, so as to effectively avoid the evaporated water vapor from flowing into the closed part, and further improve the recovery rate of the evaporated water vapor. Further, the other side of the flow guide strip 415 is set to be an inclined surface facing the conducting part or an arc surface matched with the arc plate 437, so that the evaporated water vapor can effectively enter the conducting part at the inlet end of the integral demister 4, the corresponding flow guide strip 415 can effectively slide relative to the arc plate 437 at the middle part of the demisting channel 42, and the sealing of the closed part is realized by matching all the time.

In addition, the demister 4 further includes:

two fixing plates 44 are symmetrically arranged, and the baffle plate 41 and the flow limiting assembly 43 are arranged between the two fixing plates 44. Therefore, the stable assembly of the structure of the integral demister 4 is realized, and the disassembly and assembly of the demister 4 are conveniently realized.

In view of the above disclosure, two mounting embodiments are provided in the present invention as shown in fig. 1 and 5

Example one

In fig. 1, the first straight plate 411 is set to be in a vertical state, so that the bottom parts of the plurality of baffle plates 41 are located on an inclined line under the staggered arrangement of at least two baffle plates 41, and correspondingly, in order to reduce the installation space of the demister 4 in the circulating water cooling tower, referring to fig. 2, the plurality of demisters 4 are symmetrically arranged, thereby forming a plurality of V-shaped structures which are connected in sequence.

Example two

In fig. 5, the first straight plate 411 is set in an inclined state, and it is ensured based on this that the bottoms of at least two of the baffle plates 41 are all on the same horizontal line.

In addition to the configurations disclosed in the above description and drawings, other configurations assembled by the baffle plate 41 and the flow restriction assembly 43 provided by the present invention also fall within the protection scope defined by the present invention.

In addition, the demister 4 is disposed in the circulating water cooling tower, and as can be seen from fig. 10, the circulating water cooling tower includes a tower body 1, and a water storage tank 2, a cooling recovery structure portion, and a water collector 3 are sequentially disposed from bottom to top in the tower body 1 at a position below the demister 4.

Specifically, seted up the air intake on the lateral wall of tower body 1, installed fan 5 at 1 top of tower body, and the air intake is used for leading-in air in to tower body 1, and fan 5 is used for taking the air in the tower body 1 out, and cools off to retrieve the structure part and include:

a spraying pipe 6 penetrates through one side of the tower body 1, the spraying pipe 6 is positioned below the water collector 3, and a plurality of rotary spray heads are equidistantly arranged on the spraying pipe 6;

the packing layer 7 is fixed in the tower body 1, and the packing layer 7 is positioned below the sprinkling nozzle 6;

and the filter 8 is communicated with the air inlet, and the air inlet and the filter 8 are both positioned between the packing layer 7 and the water storage tank 2.

From the above, the defogging principle of the defogger 4 of the invention in the circulating water cooling tower is as follows:

circulating water is sprayed onto a packing layer 7 in the tower body 1 through a spraying pipe 6;

the fan 5 is driven, so that the air passes through the packing layer 7 from bottom to top and contacts with the circulating water on the packing layer 7, the circulating water is cooled, part of the circulating water is evaporated into mist, and the mist enters the demister 4 along with the air after passing through the water collector 3, and then condensation demisting and recovery of the evaporated mist are realized according to the above disclosed principle.

Further, as can be seen from fig. 11, the water collector 3 includes:

at least two water collection tanks 31 arranged in parallel;

the water guide assembly 32 is connected between two adjacent water collecting tanks 31, the water guide assembly 32 comprises two inclined plates with opposite inclination directions, the bottoms of the inclined plates are connected with the side walls of the water collecting tanks 31, the top of one inclined plate extends to the position above the other inclined plate, and a ventilation gap is reserved in front of the two inclined plates;

a water conduit 33; the bottoms of at least two water collecting tanks 31 are communicated with a water guiding pipeline 33, and the water guiding pipeline 33 passes through the position of the cooling and recycling structure part and guides the water in the water collecting tanks 31 to the water storage tank 2.

As can be seen from the above, the mixed airflow of mist and air passes through the water collector 3 based on the ventilation gap during the rising process, and the liquid drops formed by demisting in the demister 4 fall onto the inclined plate, automatically fall into the water collection tank 31 based on the diversion of the inclined plate, and then flow back to the water storage tank 2 based on the water guide pipe 33. In addition, the inclined plate obliquely arranged in the water collector 3 has a certain demisting effect due to the blockage of the mixed air flow.

In the illustration of the present invention, the solid line arrow indicates the flow direction of the mixed gas flow of mist and air, and the dotted line arrow indicates the falling direction of the droplets collected by the mist elimination.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a defogging device is retrieved to circulating water cooling tower evaporation steam which characterized in that: comprises a demister (4), and the demister (4) comprises:

the baffle plate comprises at least two parallel baffle plates (41) which are arranged in a staggered manner, wherein each baffle plate (41) comprises at least two first straight plates (411) and at least one first bent part (412), the first straight plates (411) are connected with the first bent parts (412) in a staggered manner, and the first bent parts (412) enable two sides of each baffle plate (41) to form an inner concave part and an outer convex part respectively; a demisting channel (42) is formed between two adjacent baffle plates (41) in a surrounding manner, and in the two adjacent baffle plates (41) which are in staggered fit, the connecting part of the first straight plate (411) and the first bent part (412) of one baffle plate (41) corresponds to the first straight plate (411) or the first bent part (412) of the other baffle plate (41);

the plurality of flow limiting assemblies (43) are arranged in the demisting channel (42) in an end-to-end matching manner, each flow limiting assembly (43) comprises a flow limiting plate (431) capable of rotating independently, and each flow limiting plate (431) comprises a second straight plate (432) and a second bent part (433) which are connected with each other; the flow limiting plate (431) divides the demisting channel (42) into two parts, wherein one part is a closed part, the other part is a conducting part, the outer convex side of the second bent part (433) faces the conducting part, the second bent part (433) corresponds to the inner concave part of the baffle plate (41) on one side of the conducting part, and the conducting area of the conducting part is changed through the rotation of the flow limiting plate (431).

2. The device for removing mist in recycling evaporative water cooling tower as claimed in claim 1, wherein the first bending part (412) comprises:

a first guide plate (413) parallel to the first straight plate (411), wherein the first guide plate (413) is positioned on one side of the first straight plate (411);

and the first connecting plates (414) are symmetrically fixed at two ends of the first guide plate (413), and the first connecting plates (414) are used for connecting the first guide plate (413) and the first straight plate (411).

3. The vapor recovery demisting device for circulating water cooling tower as claimed in claim 2, wherein said flow restriction assembly (43) further comprises:

the rotating roller (434) is fixed at one end of the throttling plate (431), the rotating roller (434) and the second bending part (433) are respectively connected to two ends of the second straight plate (432), the surface of the rotating roller (434) is tangent to the second straight plate (432), and the rotating roller (434) is located in the closed part.

4. The device for removing mist in recycling evaporative water vapor of a circulating water cooling tower as claimed in claim 3, wherein the second bending part (433) comprises:

a second guide plate (435) parallel to the first guide plate (413), the length of the second guide plate (435) being less than the length of the first guide plate (413), and in the conducting portion, the distance between the second guide plate (435) and the first guide plate (413) does not exceed the radius of the rotating roller (434);

the second connecting plate (436) is fixed at one end of the second guide plate (435), the second connecting plate (436) is used for connecting the second guide plate (435) and the second straight plate (432), and the included angle between the second guide plate (435) and the second connecting plate (436) is equal to the included angle between the first guide plate (413) and the first connecting plate (414);

and the arc plate (437) is fixed at the other end of the second guide plate (435), the circle center of the arc plate (437) and the rotation axis of the current limiting plate (431) are positioned at the same position, and the arc plate (437) is in circumscribed fit with the rotating roller (434).

5. The device for recovering and demisting evaporative water vapor of the circulating water cooling tower as claimed in claim 3, wherein a flow guide strip (415) is fixed on one side of each first straight plate (411), and one side of the flow guide strip (415) is set into an arc shape capable of matching with the rotating roller (434).

6. The device for removing mist from the evaporated water vapor of the circulating water cooling tower, which is characterized in that the mist eliminator (4) further comprises:

the baffle plate comprises two fixing plates (44) which are symmetrically arranged, and the baffle plate (41) and the flow limiting assembly (43) are arranged between the two fixing plates (44).

7. The device for recovering and demisting evaporated water vapor in the circulating water cooling tower as claimed in claim 6, wherein the demister (4) is arranged in the circulating water cooling tower, the circulating water cooling tower comprises a tower body (1), and a water storage tank (2), a cooling recovery structure part and a water collector (3) are sequentially arranged in the tower body (1) from bottom to top at a position below the demister (4);

the water collector (3) comprises:

at least two water collecting troughs (31) arranged in parallel;

connect water guide assembly (32) between two adjacent water catch bowl (31), just water guide assembly (32) include two swash plates that the slope direction is opposite, the swash plate bottom is connected with water catch bowl (31) lateral wall, and one of them swash plate top extends to another swash plate top to reserve the air gap before two swash plates.

8. The device for removing mist from the evaporated water vapor of the circulating water cooling tower as claimed in claim 7, wherein the water collector (3) further comprises:

a water guide pipe (33); the bottoms of the at least two water collecting grooves (31) are communicated with a water guide pipeline (33), and the water guide pipeline (33) penetrates through the position where the cooling recovery structure part is located and guides water in the water collecting grooves (31) to the water storage tank (2).

9. The device for recovering and demisting evaporated water vapor in the circulating water cooling tower according to claim 7, wherein an air inlet is formed in the side wall of the tower body (1), a fan (5) is installed at the top of the tower body (1), the air inlet is used for introducing air into the tower body (1), and the fan (5) is used for extracting the air in the tower body (1).

10. The apparatus as claimed in claim 9, wherein the cooling recovery structure comprises:

the spraying pipe (6) penetrates through one side of the tower body (1), the spraying pipe (6) is positioned below the water collector (3), and a plurality of rotary spray heads are equidistantly mounted on the spraying pipe (6);

the packing layer (7) is fixed in the tower body (1), and the packing layer (7) is positioned below the spraying pipe (6);

and the filter (8) is communicated with the air inlet, and the air inlet and the filter (8) are both positioned between the packing layer (7) and the water storage tank (2).