Flow limiting device for uniform water distribution of cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a flow limiting device for uniform water distribution of a cooling tower, which comprises a mounting frame, a water blocking plate with holes and a control mechanism, the mounting frame is fixedly mounted on a water distribution disc, and the mounting frame is positioned at a water outlet of a water inlet pipe towards one side of the water distribution disc with large water distribution quantity; the water blocking plate with the holes is movably mounted on the mounting frame, the water blocking plate with the holes is used for blocking cooling water in the water distribution disc, and the control mechanism is used for controlling the water blocking plate with the holes to move, so that the intercepting amount of the cooling water in the water distribution disc by the water blocking plate with the holes can be changed. The problem of uneven water distribution of the cooling tower in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cooling tower technical field especially relates to a cooling tower even water distribution with flow limiting device. BACKGROUND

[0002] In the cigarette production process, the demand of energy saving and consumption reducing is increasing. According to data, when maintaining the suitable environmental temperature and humidity, the energy consumption of refrigeration system accounts for nearly 40% of the total energy consumption of enterprises, showing huge energy saving potential. With the continuous improvement of national energy saving and emission reduction standards, the energy saving and optimization research of refrigeration system has become a trend. As the key equipment in the refrigeration system, the cooling capacity of cooling tower directly affects the energy consumption of air conditioning unit and even the whole building. The heat and mass transfer efficiency of crossflow cooling tower is crucial to reduce energy consumption. However, due to the factors such as the inclination of cooling tower during installation and the outlet centering error of water inlet pipe, the water distribution of water distribution plate is not uniform, which not only reduces the effective heat transfer area of cooling tower, but also reduces the heat exchange efficiency. In the long run, this will affect the operation efficiency of refrigeration system and increase the energy consumption. Therefore, our goal is to reduce the operation energy consumption of refrigeration system by improving the uniformity of cooling tower water distribution. SUMMARY

[0003] The utility model aims at providing a kind of cooling tower even water distribution with flow limiting device to solve the problem of uneven water distribution of cooling tower in prior art.

[0004] The utility model solves the above technical problem by the following technical means: a kind of cooling tower even water distribution with flow limiting device, including mounting bracket, water baffle with hole and control mechanism, the mounting bracket is fixedly installed on water distribution plate, the mounting bracket is located at the water outlet of water inlet pipe towards the low end of water distribution plate side, the water baffle with hole is movably installed on mounting bracket, the water baffle with hole is used to intercept the cooling water in water distribution plate, the control mechanism is used to control water baffle with hole movement, to be able to change the flow of cooling water in water distribution plate of water baffle with hole.

[0005] By setting the above structure, when the cooling water at the upper end of cooling tower is sprayed on the water distribution plate from the water outlet of water inlet pipe, due to the deviation between water distribution plate and water inlet pipe, the water distribution amount of one end of water distribution plate is greater than that of the other end, and the adjustable water baffle with hole in door type is installed on the side with large water distribution amount, and the water baffle with hole is moved to hinder the flow of high liquid level cooling water in water distribution plate by control mechanism. At this time, the cooling water with large potential energy from the water outlet of water inlet pipe is rebounded as kinetic energy by the water baffle with hole and flows into the end with lower liquid level of water distribution plate, effectively solving the uneven water distribution problem of crossflow cooling tower, ensuring that the water distribution plate is always in high water level state, maintaining the uniform water distribution of water distribution plate, improving the cooling efficiency of cooling tower, reducing the operation time of cooling tower fan and reducing the equipment operation energy consumption.

[0006] Further, the mounting frame is U-shaped, the mounting frame is embedded on the water distribution tray with the opening downward, two wings of the mounting frame are respectively provided with sliding grooves in the vertical direction, and the two ends of the water blocking plate with holes are respectively embedded in the sliding grooves.

[0007] Through the above structure, the U-shaped mounting frame can better install the water blocking plate with holes, the sliding grooves limit the moving direction of the water blocking plate with holes, and the water blocking plate with holes is embedded in the sliding grooves, so that the water blocking plate with holes can work stably under the potential energy impact of cooling water.

[0008] Further, the mounting frame and the water blocking plate with holes are provided with a spring, the top end of the spring is connected with the web of the mounting frame, and the bottom end is connected with the top of the water blocking plate with holes.

[0009] Through the above structure, the spring can support the water blocking plate with holes and reset the water blocking plate with holes.

[0010] Further, the control mechanism comprises a pulley assembly and a valve rod, the middle part of the valve rod is rotatably installed on the water distribution tray, the pulley assembly comprises a fixed pulley rotatably installed on the water distribution tray and a pull rope wound on the fixed pulley, one end of the pull rope is connected with the bottom of the water blocking plate with holes, the other end is connected with one end of the valve rod, and the other end of the valve rod extends to the end of the water distribution tray with small water distribution amount and is fixed with a float ball valve.

[0011] Through the above structure, when the liquid level of the float ball valve is lowered, the float ball sinks, the valve rod pulls the pull rope, the pull rope pulls the water blocking plate with holes downward through the fixed pulley to hinder the cooling water flow of the high liquid level water distribution tray, at this time, the cooling water with large potential energy at the outlet of the water inlet pipe rebounds as kinetic energy through the water blocking plate with holes and flows into the end of the water distribution tray with low liquid level, as the liquid level continuously rises, the float ball valve rises under the action of buoyancy and drives the end of the valve rod close to the water blocking plate with holes to descend, the pulling force of the pull rope is reduced, and the water blocking plate with holes slides upward under the action of the pulling force of the spring until it is static, so that the water distribution tray simply, economically and effectively solves the uneven water distribution problem of the cross flow type cooling tower through the non-powered flow limiting device.

[0012] Further, the control mechanism is provided at least one along the width direction of the water distribution tray.

[0013] Through the above structure, the control mechanism can more stably and efficiently control the movement of the water blocking plate with holes.

[0014] The beneficial effects of the utility model are as follows:

[0015] When the cooling water at the upper end of the cooling tower is sprayed on the water distribution tray from the water outlet of the water inlet pipe, due to the deviation between the water distribution tray and the water inlet pipe, the water distribution amount at one end of the water distribution tray is greater than that at the other end, and the adjustable water blocking plate with holes is installed on the side with a large water distribution amount, when the liquid level of the float ball valve is lowered, the float ball sinks, the other end of the valve rod is pulled by the pry, the pull rope pulls the water blocking plate with holes to move downward to hinder the cooling water flow of the water distribution tray at the high liquid level, at this time, the cooling water at the outlet of the water inlet pipe contains a large potential energy and is bounced as kinetic energy to flow into the end of the water distribution tray with a low liquid level, with the continuous rise of the liquid level, the float ball valve rises under the action of the buoyancy and drives the other end of the valve rod to descend, the pulling force of the pull rope is reduced, and the water blocking plate with holes slides upward under the action of the spring tension until it is static. In this way, the water distribution tray solves the uneven water distribution problem of the cross flow type cooling tower through the simple, economical and effective non-powered flow limiting device, ensures that the water distribution tray is always at the same water level, maintains uniform water distribution of the water distribution tray, improves the cooling efficiency of the cooling tower, reduces the operation time of the cooling tower fan and reduces the equipment operation energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0017] Figure 1 It is the installation structure schematic view of the flow limiting device for uniform water distribution of the cooling tower on the cooling tower.

[0018] Figure 2 It is Figure 1 the partial structure schematic view.

[0019] Figure 3 It is Figure 2 the front view.

[0020] Figure 4 It is the installation structure schematic view of the flow limiting device for uniform water distribution of the cooling tower on the water distribution tray.

[0021] Figure 5 It is Figure 4 the enlarged structure schematic view of A in the partial structure schematic view.

[0022] In the above drawings: 1, cooling tower; 2, water distribution tray; 3, water inlet pipe; 4, mounting frame; 5, water blocking plate with holes; 6, through hole; 7, sliding groove; 8, spring; 9, fixed pulley; 10, pull rope; 11, valve rod; 12, float ball valve; 13, support. DETAILED DESCRIPTION

[0023] The advantages and effects of the present application can be understood by the content disclosed in the specification. It should be noted that the drawings provided in the following examples are only used for exemplary description, and the representation is only a schematic diagram, not a physical drawing, and should not be understood as a limitation of the present application. In order to better illustrate the embodiments of the present application, some components in the drawings are omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known mechanisms and their descriptions in the drawings can be omitted.

[0024] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components, and in the description of the present application, it should be understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation of the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances, and in the description of the present application, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0025] In the related art, if the cooling tower 1 or the water distribution plate 2 is inclined, the water distribution plate 2 will form a high end and a low end, in this case, when the cooling water of the water inlet pipe 3 flows into the middle of the water distribution plate 2, under the action of its own gravity, the cooling water will more gather to the low end of the water distribution plate 2, so that the water distribution amount at the low end of the water distribution plate 2 is greater than that at the high end; if the water outlet of the water inlet pipe 3 does not face the middle of the water distribution plate 2, under the action of its own potential energy, the cooling water will more flow to the direction deviated from the water outlet of the water inlet pipe 3, which will also cause the water distribution amount at one end of the water distribution plate 2 to be greater than that at the other end.

[0026] As Figures 1-5As shown in the utility model embodiment, the cooling tower 1 uniform water distribution flow limiting device is applied to the water distribution plate 2 of the cooling tower 1, the water inlet pipe 3 is arranged on the cooling tower 1, and the water outlet of the water inlet pipe 3 is opposite to the upper portion of the middle portion of the water distribution plate 2, in the embodiment, the structure of the cross flow type cooling tower 1, the water distribution plate 2 and the water inlet pipe 3 in the cigarette factory has been fully disclosed in the prior art, and therefore, no more detailed description is given herein. Figure 2 、 Figure 3 and Figure 4 As shown in the utility model embodiment, the water distribution plate 2 is arranged in an inclined manner, the left end of the water distribution plate 2 is lower than the right end, and therefore, the mounting frame 4 and the hole blocking plate 5 are located on the left side of the water outlet of the water inlet pipe 3. The hole blocking plate 5 is movably arranged on the mounting frame 4, the hole blocking plate 5 is used for intercepting the cooling water in the water distribution plate 2, and the control mechanism is used for controlling the movement of the hole blocking plate 5, so that the flow of the cooling water in the water distribution plate 2 can be changed.

[0027] In fact, the mounting frame 4 can be two L-shaped rods, the two L-shaped rods are symmetrically arranged on the left and right sides of the water distribution plate 2, the vertical section of the L-shaped rod is fixed on the water distribution plate 2, the L-shaped rod can be fixed on the side wall of the water distribution plate 2 through a bolt, or a clamping groove can be arranged on the side wall of the water distribution plate 2, and the L-shaped rod is clamped in the clamping groove, the horizontal section of the L-shaped rod is located on the top of the vertical section and extends to the middle portion of the water distribution plate 2, and forms a mounting position for the spring 8, in the embodiment, the mounting frame 4 is in a U shape, the mounting frame 4 is embedded on the water distribution plate 2 in a manner that the opening faces downward, and the mounting frame 4 can also be fixed on the side wall of the water distribution plate 2 through a bolt, two wings of the mounting frame 4 are respectively provided with a sliding groove 7 in the vertical direction, and the two ends of the hole blocking plate 5 are respectively slidably embedded in the two sliding grooves 7, the U-shaped mounting frame 4 can be more quickly and conveniently mounted on the water distribution plate 2, the U-shaped mounting frame 4 is more convenient to store and manage, the sliding groove 7 can limit the movement direction of the hole blocking plate 5, and the hole blocking plate 5 is embedded in the sliding groove 7, so that the hole blocking plate 5 can stably work under the potential energy impact of the cooling water.

[0028] The spring 8 is arranged between the mounting frame 4 and the hole blocking plate 5, the top end of the spring 8 is fixedly connected with the web of the mounting frame 4, and the bottom end is fixedly connected with the top of the hole blocking plate 5, in the embodiment, the spring 8 is two, and the two springs 8 are symmetrically arranged at the two ends of the top of the hole blocking plate 5, so that the hole blocking plate 5 can be better reset.

[0029] In fact, the control mechanism can be a motor, a winding shaft, a fixed pulley 9 and a rope, the motor output is fixedly connected with the winding shaft, the fixed pulley 9 is rotatably installed on the water distribution tray 2 and located below the hole-blocking water plate 5, one end of the rope is fixedly connected with the bottom of the hole-blocking water plate 5, and the other end of the rope is wound on the winding shaft after passing through the fixed pulley 9, the winding shaft can be driven to wind or unwind the rope through the rotation of the motor, so that the hole-blocking water plate 5 can be driven to rise or move downward, in the embodiment, the control mechanism comprises a pulley assembly and a valve rod 11, the middle part of the valve rod 11 is rotatably installed on the water distribution tray 2, in the embodiment, a support 13 is fixedly arranged on the right side of the water distribution tray 2 at the water outlet of the water inlet pipe 3, and the middle part of the valve rod 11 is rotatably installed on the top of the support 13, so that the valve rod 11 forms a lever structure. The pulley assembly comprises the fixed pulley 9 rotatably installed on the water distribution tray 2 and the pull rope 10 wound on the fixed pulley 9, the fixed pulley 9 is located below the hole-blocking water plate 5, one end of the pull rope 10 is fixedly connected with the bottom of the hole-blocking water plate 5, and the other end of the pull rope 10 is fixedly connected with the left end of the valve rod 11, the right end of the valve rod 11 extends to the end of the water distribution tray 2 with small water distribution amount (i.e. the right end of the water distribution tray 2) and is fixedly provided with the float ball valve 12, and the float ball valve 12 is a float ball in the embodiment. The control mechanism is symmetrically arranged along the width direction of the water distribution tray 2.

[0030] In the above embodiment, the pull rope 10 is made of stainless steel wire rope, and the mounting frame 4 and the hole-blocking water plate 5 are made of stainless steel.

[0031] Working principle:

[0032] When the cooling water at the upper end of the cooling tower 1 is sprayed on the water distribution tray 2 from the water outlet of the water inlet pipe 3, due to the deviation between the water distribution tray 2 and the water inlet pipe 3, the water distribution amount at the left end of the water distribution tray 2 is greater than that at the right end, the hole-blocking water plate 5 is arranged on the side with large water distribution amount, the upper end of the hole-blocking water plate 5 is connected with the U-shaped mounting frame 4 through the telescopic spring 8, and the lower end of the hole-blocking water plate 5 is connected with the left end of the valve rod 11 through the stainless steel wire rope, when the liquid level of the float ball valve 12 is lowered, the float ball sinks, the left end of the valve rod 11 is pulled upward, the stainless steel wire rope is pulled through the fixed pulley 9, the hole-blocking water plate 5 is pulled downward, and the flow of the cooling water to the high liquid level end of the water distribution tray 2 (i.e. the left end of the water distribution tray 2) is hindered, at this time, the cooling water at the outlet of the water inlet pipe 3 contains a large potential energy, and the potential energy is rebounded as kinetic energy through the hole-blocking water plate 5 and flows into the end of the water distribution tray 2 with low liquid level (i.e. the right end of the water distribution tray 2), as the liquid level continuously rises, the float ball valve 12 is driven by the buoyancy to lower the left end of the valve rod 11, the pulling force of the stainless steel wire rope is reduced, the hole-blocking water plate 5 is pulled upward by the pulling force of the spring 8 until it is static. In this way, the water distribution tray 2 solves the problem of uneven water distribution of the crossflow cooling tower 1 through the simple, economical and effective non-powered flow limiting device, ensures that the water distribution tray 2 is always in a uniform and high liquid level state, maintains uniform water distribution of the water distribution tray 2, improves the cooling efficiency of the cooling tower 1, reduces the operation time of the fan of the cooling tower 1, and reduces the energy consumption of equipment operation.

[0033] The above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application. The technical, shape, and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A flow limiting device for uniform water distribution in a cooling tower, applied to a water distribution tray of a cooling tower, wherein a water inlet pipe is arranged on the cooling tower, and a water outlet of the water inlet pipe is arranged above a middle part of the water distribution tray, characterized in that: The application relates to a water distribution device, which comprises a mounting frame, a perforated water blocking plate and a control mechanism, the mounting frame is fixedly installed on a water distribution plate, the mounting frame is located at a side of a water outlet of a water inlet pipe, the perforated water blocking plate is movably installed on the mounting frame, the perforated water blocking plate is used for intercepting cooling water in the water distribution plate, and the control mechanism is used for controlling the movement of the perforated water blocking plate, so that the water interception amount of the perforated water blocking plate to the cooling water in the water distribution plate can be changed.

2. The uniform water distribution flow restrictor for cooling towers as claimed in claim 1 wherein: The mounting frame is in a U shape, the mounting frame is embedded on the water distribution plate in an opening-down mode, two wing plates of the mounting frame are respectively provided with sliding grooves in the vertical direction, and two ends of the perforated water blocking plate are respectively slidably embedded in the two sliding grooves.

3. The uniform water distribution flow restrictor for cooling towers as claimed in claim 2 wherein: A spring is arranged between the mounting frame and the perforated water blocking plate, a top end of the spring is connected with a web plate of the mounting frame, and a bottom end of the spring is connected with a top portion of the perforated water blocking plate.

4. The uniform water distribution flow restrictor for cooling towers as claimed in claim 1 wherein: The control mechanism comprises a pulley assembly and a valve rod, the valve rod is movably arranged at the middle portion of the water distribution plate, the pulley assembly comprises a fixed pulley movably arranged on the water distribution plate and a pull rope wound on the fixed pulley, one end of the pull rope is connected with a bottom portion of the perforated water blocking plate, the other end of the pull rope is connected with one end of the valve rod, the other end of the valve rod extends to an end portion of the water distribution plate with small water distribution amount and is fixedly provided with a float ball valve.

5. The uniform water distribution flow restriction device for cooling towers as claimed in claim 4, wherein: The control mechanism is arranged at least in the width direction of the water distribution plate.

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