CN218410852U

CN218410852U - Evaporative condenser and water tank for evaporative cooling thereof

Info

Publication number: CN218410852U
Application number: CN202221914282.2U
Authority: CN
Inventors: 程胤; 刘斌; 荣志豪
Original assignee: Zhejiang Intech Technology Co ltd
Current assignee: Zhejiang Intech Technology Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-01-31
Anticipated expiration: 2032-07-20

Abstract

The utility model relates to a indirect heating equipment field especially relates to an evaporative condenser and evaporation is cold with water tank thereof. A water tank for evaporative cooling comprises a tank body; the box body comprises a bottom plate and a plurality of side enclosing plates which are arranged around the edge of the bottom plate in a sealing way; a cavity for storing liquid is formed between the bottom plate and the plurality of side enclosing plates of the bottom plate, a liquid outlet and a liquid supplementing port which are communicated with the cavity are formed in the side enclosing plates of the box body, and a box port for recovering the liquid is formed in the upper end of the box body; still be equipped with high liquid level switch and low liquid level switch on the inner wall of side bounding wall, the liquid outlet is used for connecting the spray line who has the water pump, and opening of water pump is stopped by the signal control that opens and shuts of high liquid level switch and low liquid level switch, just can control the water pump under high liquid level switch and the low liquid level switch off-state simultaneously and open, and low liquid level switch on-state just can control the water pump and close. The scheme can avoid frequent start and stop caused by liquid level fluctuation, prolong the service life of the circulating water pump and accurately control the liquid level in the water tank.

Description

Evaporative condenser and water tank for evaporative cooling thereof

Technical Field

The utility model relates to a indirect heating equipment field especially relates to an evaporative condenser and evaporation cooling uses water tank thereof.

Background

The evaporative condenser is a refrigeration device commonly used by chemical enterprises, and sprays cooling water on the outer surface of a heat exchanger to form a thin water film. High-temperature gas enters from the upper header of the condensing heat exchanger, and a water film on the outer surface of the condensing heat exchanger is evaporated, so that heat exchange is realized, the high-temperature gas is condensed, and condensate flows out of a liquid outlet on the lower part of the condensing heat exchanger into a water tank below the condensing heat exchanger and is then conveyed to the spraying assembly through a spraying pipeline. The specific evaporative condenser can refer to an evaporative condenser disclosed in the prior patent with publication number "CN215864158U", and comprises a shell, and a spraying assembly, a filler, a heat exchange assembly and a water tank which are arranged inside the shell; the filler, the heat exchange assembly and the water tank are sequentially arranged inside the shell below the spray assembly from top to bottom, and the water tank is connected with the spray assembly through a spray loop.

As described above, the amount of water inside the tank is the amount of water in the entire evaporative condenser, so that the liquid level in the water tank needs to be accurately controlled, but the water tank in the prior art is difficult to ensure this.

Disclosure of Invention

In order to solve the problem, the utility model discloses a first aim at provides an evaporation is cold with water tank, the purpose of liquid level in this scheme can avoid the frequent opening of opening that leads to of liquid level fluctuation to stop, extension circulating water pump life-span, the accurate control water tank.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an evaporation cooling water tank comprises a tank body; the box body comprises a bottom plate and a plurality of side enclosing plates which are arranged around the edge of the bottom plate in a sealing way; a cavity for storing liquid is formed between the bottom plate and the plurality of side enclosing plates of the bottom plate, a liquid outlet and a liquid supplementing port which are communicated with the cavity are formed in the side enclosing plates of the box body, and a box port for recovering the liquid is formed in the upper end of the box body; the inner wall of the side enclosing plate is also provided with a high liquid level switch and a low liquid level switch, and the liquid supplementing port, the high liquid level switch, the low liquid level switch and the liquid outlet are sequentially arranged in the cavity from top to bottom; the liquid outlet is used for connecting the spray line that has the water pump, and opening and shutting signal control by high liquid level switch and low liquid level switch of opening and shutting of water pump, just can control the water pump under high liquid level switch and the low liquid level switch off-state simultaneously and open, and low liquid level switch on-state just can control the water pump and close.

The above technical scheme is adopted in the utility model, this technical scheme relates to a water tank is used to evaporation cooling, and the inside cavity of this water tank is used for depositing the cooling water when evaporative condenser moves, and the fluid infusion mouth is used for supplementing the cooling water to the cavity is inside when first use, trade water and the inside water yield of water tank is not enough. When in use, cooling water is conveyed into the spraying assembly from the liquid outlet through the spraying pipeline; the cooling water sprayed by the spraying component is subjected to heat exchange through the heat exchanger and then falls into the tank opening of the tank body. Furthermore, a high liquid level switch and a low liquid level switch are arranged in the cavity in the scheme, the high liquid level switch and the low liquid level switch are arranged between the liquid supplementing port and the liquid outlet, and when the liquid level of the cooling water contacts the high liquid level switch and the low liquid level switch, the high liquid level switch and the low liquid level switch are in a closed state; and when the high liquid level switch and the low liquid level switch are exposed out of cold air water, the high liquid level switch and the low liquid level switch are in an open state.

In the scheme, the starting and stopping of the water pump are controlled by the opening and closing signals of the high liquid level switch and the low liquid level switch. The method comprises the following steps: when the water tank is started, the water pump can be controlled to be started only when the high liquid level switch and the low liquid level switch are simultaneously closed, so that the water tank can be operated only when enough water is in the water tank; in the operation process, because part of cooling water is in the spraying loop and the spraying process, the water level in the water tank is reduced, and the water pump can be controlled to be closed only when the low liquid level switch is in an opening state.

So, the purpose of liquid level in frequent opening of stopping, extension circulating water pump life-span, the accurate control water tank that this scheme can avoid the liquid level fluctuation to lead to.

Preferably, a filter screen unit is connected and installed on the side enclosing plate on the inner side of the liquid outlet and comprises a filter pipe, the inner end of the filter pipe is closed, the outer end of the filter pipe is connected to the liquid outlet, and filter holes are formed in the side wall of the pipe body. This scheme is at the inboard installation filter screen unit of liquid outlet, filters cooling water through filter screen unit, avoids having the foreign matter suction pump in the water tank.

Preferably, the bottom plate is vertically provided with a sewage discharge cavity, and the sewage discharge cavity is connected with a sewage discharge pipe; a filter screen is arranged on the mouth of the sewage cavity. In the scheme, the sewage discharge cavity is arranged in a sinking mode relative to the bottom plate, so that cooling water can be collected into the sewage discharge cavity, and sewage can be discharged as soon as possible. The filter screen is arranged on the mouth of the sewage cavity, so that larger foreign matters are prevented from entering the sewage pipeline to cause blockage.

The box body adopts a special metal plate form and a splicing method, so that the integral size precision of the water tank can be ensured, the welding difficulty is reduced, the hidden danger of water leakage is reduced, and the service life is prolonged. Specifically, the lower end part of the side enclosing plate is provided with an inward bent bending part, and the bending part is attached to and hermetically fixed on the top surface of the bottom plate. The lower part of the water tank side plate is bent and welded with the bottom plate, the inner side of the water tank side plate is fully welded and sealed, and the outer side of the water tank side plate is discontinuously welded and reinforced.

Furthermore, the edge of the bottom plate exceeds the outer side wall of the side enclosing plate, and the exceeding part of the bottom plate is bent upwards to form a positioning plate; when the side coaming is arranged on the bottom plate, the positioning plate is abutted against the outer end face of the side coaming. In the above scheme, the water tank bottom plate is a whole flat plate, and the periphery of the water tank bottom plate is bent to form the positioning plate for positioning the water tank side plate.

Preferably, two adjacent side enclosing plates are connected through a reinforcing rod, and the reinforcing rod is used for increasing the strength of the water tank.

Preferably, the box opening at the upper end of the box body is provided with a splash-proof water collecting component, so that splash water can be prevented from being irradiated when spray water drops, and the box is suitable for places with splash-proof requirements. In a specific embodiment, a support rod is erected between two opposite side panels of the box body, and the anti-splash water collecting component comprises a plurality of anti-splash water collecting plates erected on the support rod; the arrangement direction of the splash-proof water collecting plate is vertical to the direction of the rod body of the supporting rod.

Preferably, an overflow port is further arranged on the side enclosing plate above the high liquid level switch.

A second object of the present invention is to provide an evaporative condenser, which comprises a casing, and a spraying assembly, a filler, a heat exchange assembly and a water tank disposed inside the casing; the method is characterized in that: the water tank is the water tank for evaporative cooling as described above, and the water tank is connected with the spray assembly through a spray pipeline.

Drawings

Fig. 1 is a schematic diagram of the water cycle of an evaporative cooling water tank.

Fig. 2 is a side schematic view of an evaporative cooling water tank.

Fig. 3 is a schematic view of the filter screen mounted on the water tank.

Fig. 4 is a schematic view showing a structure of a water tank equipped with a strainer unit.

Fig. 5 is a schematic structural view of the strainer unit.

FIG. 6 is a schematic view of the connection of the side wall plate and the bottom plate.

Fig. 7 is a schematic structural view of a bottom plate positioning side enclosure.

Fig. 8 is a schematic structural view of a water tank equipped with a splash-proof water collecting plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Example 1:

as shown in fig. 1 to 8, the present embodiment relates to a water tank for evaporative cooling, which includes a tank body 1. The box 1 comprises a bottom plate 11 and a plurality of side enclosing plates 12 which are sealed around the edge of the bottom plate 11. A cavity 13 for storing liquid is formed between the bottom plate 11 and the plurality of side enclosing plates 12, a liquid outlet 14, a liquid supplementing port 15 and an overflow port 16 which are communicated with the cavity 13 are arranged on the side enclosing plates 12 of the box body 1, and a box port 17 for recovering the liquid is constructed at the upper end of the box body 1. Still be equipped with high liquid level switch 2 and low liquid level switch 3 on the inner wall of side bounding wall 12, fluid infusion mouth 15, high liquid level switch 2, low liquid level switch 3 and liquid outlet 14 arrange in cavity 13 from last to down in proper order. The liquid outlet 14 is used for connecting the spray line that has the water pump, and opening of water pump is stopped by the signal control that opens and shuts of high level switch 2 and low level switch 3, just can control the water pump under high level switch 2 and the low level switch 3 off-state simultaneously and open, and low level switch 3 on-state just can control the water pump and close. The cavity 13 in the water tank is used for storing cooling water when the evaporative condenser operates, and the liquid supplementing port 15 is used for supplementing cooling water to the cavity 13 when the evaporative condenser is used for the first time, water is replaced, and the water quantity in the water tank is insufficient. When in use, cooling water is conveyed into the spraying assembly from the liquid outlet 14 through the spraying pipeline. The cooling water sprayed by the spray assembly is subjected to heat exchange through the heat exchanger and then falls into the tank opening 17 of the tank body 1. Further, chamber 13 in this scheme is inside to be provided with high liquid level switch 2, low liquid level switch 3, and high liquid level switch 2, low liquid level switch 3 arrange between fluid infusion mouth 15 and liquid outlet 14, and when cooling water liquid level contact high liquid level switch 2 and low liquid level switch 3, high liquid level switch 2 and low liquid level switch 3 are in the off-state. And when the high liquid level switch 2 and the low liquid level switch 3 are exposed to cold air water, the high liquid level switch 2 and the low liquid level switch 3 are in an open state.

In this scheme, the start-stop of water pump is by high liquid level switch 2 and the signal control that opens and shuts of low liquid level switch 3. The method comprises the following steps: when starting, just can control the water pump and open under high liquid level switch 2 and the low liquid level switch 3 off-state simultaneously to guarantee just to move under the inside condition that has enough water yield of water tank. In the operation process, the water level in the water tank is reduced because part of the cooling water is in the spraying loop and the spraying process, and the water pump can be controlled to be closed only when the low liquid level switch 3 is in an open state.

So, the purpose that frequent opening that this scheme can avoid the liquid level fluctuation to lead to stops, prolong circulating water pump life-span, liquid level in the accurate control water tank. In addition, the liquid outlet 14 in the scheme is positioned below the low liquid level switch 3, meanwhile, the start and stop of the water pump meet the requirements, when the water pump is started, enough water is in the water tank, and air is not sucked when the water pump is started; when the water level in the water tank is lowered to the position below the low liquid level switch 3 during operation, the water pump stops; thereby also ensuring that the water pump does not suck air when running; so that cavitation caused by the suction of air by the water pump can be prevented.

The overflow port 16 is positioned on the side wall plate 12 above the high liquid level switch 2, so that overflow caused by excessive water tank is avoided.

As shown in fig. 4 and 5, a filter screen unit 4 is connected and installed on the side wall 12 inside the liquid outlet 14, the filter screen unit 4 includes a filter tube 41, the inner end of the filter tube 41 is closed, the outer end is connected to the liquid outlet 14, and a filter hole 411 is arranged on the side wall of the tube body. This scheme is at 14 inboard installation filter unit 4 of liquid outlet, filters in the cooling water through filter unit 4, avoids having the foreign matter suction pump in the water tank.

As shown in figures 2 and 3, a sewage draining cavity 18 is vertically constructed on the bottom plate 11, and a sewage draining pipe 181 is connected to the sewage draining cavity 18. A filter screen 182 is arranged on the mouth of the sewage draining cavity 18. In the scheme, the sewage discharging cavity 18 is arranged in a sinking way relative to the bottom plate 11, so that cooling water can be collected in the sewage discharging cavity 18, and sewage can be discharged as soon as possible. A filter screen 182 is arranged on the opening of the sewage draining cavity 18 to prevent larger foreign matters from entering the sewage draining pipe 181 to cause blockage.

As shown in figures 6 and 7, the box body 1 adopts a special sheet metal form and a splicing method, so that the overall size precision of the water tank can be ensured, the welding difficulty is reduced, the hidden danger of water leakage is reduced, and the service life is prolonged. Specifically, the lower end of the side wall 12 is formed with an inwardly bent portion 121, and the bent portion 121 is attached to and hermetically fixed to the top surface of the bottom plate 11. The lower part of the water tank side plate is bent and welded with the bottom plate 11, the inner side of the water tank side plate is sealed by full welding, and the outer side of the water tank side plate is reinforced by intermittent welding. Further, the edge of the bottom plate 11 extends beyond the outer side wall of the side wall 12, and the extending portion of the bottom plate 11 is bent upward to form the positioning plate 111. When the side fence 12 is placed on the base plate 11, the positioning plate 111 abuts against the outer end face of the side fence 12. In the above scheme, the water tank bottom plate 11 is a whole flat plate, and the periphery of the water tank bottom plate is bent to form the positioning plate 111 for positioning the water tank side plate. In addition, two adjacent side enclosing plates 12 are connected through a reinforcing rod 122, and the reinforcing rod 122 is used for increasing the strength of the water tank.

As further shown in fig. 8, a splash-proof water collecting component is disposed on the tank opening 17 at the upper end of the tank body 1, so as to prevent the spray water from splashing when dripping, and is suitable for places requiring splash-proof water. In the specific embodiment, a support rod 19 is arranged between the two opposite side enclosing plates 12 of the box body 1, and the anti-splash water collecting part comprises a plurality of anti-splash water collecting plates 5 arranged on the support rod 19. The arrangement direction of the splash-proof water collecting plate 5 is vertical to the rod body direction of the support rod 19.

Example 2:

the present embodiment does not provide drawings, and reference may be made to the drawings described in the prior patents in the background. The embodiment provides an evaporative condenser, which comprises a shell, and a spraying assembly, a filler, a heat exchange assembly and a water tank which are arranged in the shell. The method is characterized in that: the water tank is the water tank for evaporative cooling as described in embodiment 1, and the water tank is connected to the spray assembly through the spray line.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. An evaporation cooling water tank comprises a tank body (1); the box body (1) comprises a bottom plate (11) and a plurality of side enclosing plates (12) which are arranged around the edge of the bottom plate (11) in a sealing mode; a cavity (13) for storing liquid is formed between the bottom plate (11) and the side enclosing plates (12) of the box body (1), a liquid outlet (14) and a liquid supplementing port (15) which are communicated with the cavity (13) are arranged on the side enclosing plates (12) of the box body (1), and a box port (17) for recovering the liquid is constructed at the upper end of the box body (1); the method is characterized in that: the inner wall of the side enclosing plate (12) is also provided with a high liquid level switch (2) and a low liquid level switch (3), and the liquid supplementing port (15), the high liquid level switch (2), the low liquid level switch (3) and the liquid outlet (14) are sequentially arranged in the cavity (13) from top to bottom; the liquid outlet (14) is connected with a spraying pipeline with a water pump, and the start and stop of the water pump are controlled by opening and closing signals of the high liquid level switch (2) and the low liquid level switch (3); the high liquid level switch (2) and the low liquid level switch (3) can control the water pump to be started in a closed state at the same time, and the low liquid level switch (3) can control the water pump to be stopped in an open state.

2. An evaporative cooling water tank as defined in claim 1, wherein: the filter screen unit (4) is connected and installed on the side wall plate (12) on the inner side of the liquid outlet (14), the filter screen unit (4) comprises a filter pipe (41), the inner end of the filter pipe (41) is closed, the outer end of the filter pipe is connected to the liquid outlet (14), and a filter hole (411) is formed in the side wall of the pipe body.

3. An evaporative cooling water tank as defined in claim 1, wherein: a sewage discharge cavity (18) is vertically constructed on the bottom plate (11), and a sewage discharge pipe (181) is connected to the sewage discharge cavity (18); a filter screen (182) is arranged on the mouth of the sewage discharging cavity (18).

4. An evaporation cooling water tank according to claim 1, wherein: the lower end part of the side enclosing plate (12) is provided with an inward bending part (121), and the bending part (121) is attached to and hermetically fixed on the top surface of the bottom plate (11).

5. An evaporative cooling water tank as defined in claim 4, wherein: the edge of the bottom plate (11) exceeds the outer side wall of the side enclosing plate (12), and the exceeding part of the bottom plate (11) is bent upwards to form a positioning plate (111); when the side enclosing plate (12) is arranged on the bottom plate (11), the positioning plate (111) abuts against the outer end face of the side enclosing plate (12).

6. An evaporation cooling water tank according to claim 4, wherein: two adjacent side coamings (12) are connected through a reinforcing rod (122).

7. An evaporative cooling water tank as defined in claim 1, wherein: and a water-splashing-preventing water collecting part is arranged on a tank opening (17) at the upper end of the tank body (1).

8. An evaporation cooling water tank according to claim 7, wherein: a support rod (19) is erected between the enclosing plates (12) on two opposite sides of the box body (1), and the splash-proof water collecting part comprises a plurality of splash-proof water collecting plates (5) erected on the support rod (19); the arrangement direction of the splash-proof water collecting plate (5) is vertical to the rod body direction of the support rod (19).

9. An evaporative cooling water tank as defined in claim 1, wherein: an overflow port (16) is also arranged on the side wall plate (12) above the high liquid level switch (2).

10. An evaporative condenser comprises a shell, and a spraying assembly, a filler, a heat exchange assembly and a water tank which are arranged in the shell; the method is characterized in that: the water tank is the evaporation cooling water tank as defined in any one of claims 1 to 8.