Water level control device of circulating cooling water system

Abstract

The utility model discloses a circulating cooling water system water level control device which comprises a water seal barrel and a water conveying pipe communicated with the water seal barrel, a first baffle, a second baffle and a third baffle are arranged in the water conveying pipe, a drainage channel is reserved between the first baffle and the second baffle, and the third baffle is in sliding connection with the pipe wall of the water conveying pipe. And the third baffle can close or open the drainage channel. Cooling water is prevented from entraining air to enter the pipeline and the tank body, and corrosion of the pipeline and the tank body is delayed.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling systems, and particularly relates to a water level control device for a circulating cooling water system. Background Art

[0002] Vacuum salt production is a salt production method that utilizes the reduction of the boiling point of brine under vacuum conditions to improve salt production efficiency. The last-effect steam passes through the mixing condenser and enters the water seal bucket to achieve the functions of sealing and maintaining the vacuum degree. The water seal bucket consists of two parts. One is the outer bucket of the water seal bucket, which is a cylinder. The other is the overflow bucket, which is the actual water seal device of the salt production system. It is inside the outer bucket and has a semi-cylindrical shape with the same diameter as the inner diameter of the outer bucket. The diameter of the water seal bucket is relatively large. To prevent the overflow of the circulating water in the bucket due to untimely drainage, the diameter of the water delivery pipe at the lower part of the water seal bucket is also relatively large.

[0003] During normal production, the overflow water volume of the overflow bucket is stable. While the large-diameter water delivery pipe drains all the water in the water seal bucket, the cooling water will carry some air into the pipeline and the tank body, resulting in the corrosion of the pipeline and the tank body. The rust blocks falling off due to corrosion will block the sprinkler device in the subsequent cooling tower, causing the cooling water to not circulate normally and affecting the operation of the circulating condenser. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides a water level control device for a circulating cooling water system, which controls the water delivery flow rate of the water delivery pipe of the water seal bucket, avoids the cooling water from carrying air into the pipeline and the tank body, and delays the corrosion of the pipeline and the tank body.

[0005] The embodiments of the utility model are realized through the following technical solutions:

[0006] The water level control device for a circulating cooling water system includes a water seal bucket and a water delivery pipe communicated with the water seal bucket. A first baffle, a second baffle, and a third baffle are arranged in the water delivery pipe. A drainage channel is left between the first baffle and the second baffle. The third baffle is slidably connected with the pipe wall of the water delivery pipe, and the third baffle can close or open the drainage channel.

[0007] In an embodiment of the utility model, a driving motor and a cable are further included. One end of the cable is connected to the driving motor, and the other end of the cable is connected to the third baffle. The driving motor drives the third baffle to open and close through the cable.

[0008] In an embodiment of the utility model, a limiting groove is arranged on the pipe wall of the water delivery pipe, and the third baffle slides along the limiting groove.

[0009] In an embodiment of the utility model, the water seal bucket is provided with a liquid level detection device.

[0010] The technical solution of the utility model has at least the following advantages and beneficial effects:

[0011] The utility model forms a water seal through the first baffle, the second baffle and the third baffle, controls the water conveyance flow of the water conveyance pipe of the water seal bucket, avoids the cooling water carrying air into the pipeline and the tank body, and delays the corrosion of the pipeline and the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the water level control device of the circulating cooling water system in the present utility model;

[0014] Figure 2 It is a schematic diagram of the first baffle, the second baffle and the third baffle in the present utility model;

[0015] Figure 3 It is a schematic diagram of the third baffle and the limit groove in the present utility model.

[0016] Reference numerals: 1 - water seal bucket, 2 - water conveyance pipe, 31 - first baffle, 32 - second baffle, 33 - third baffle, 4 - limit groove, 5 - driving motor, 6 - cable, 7 - liquid level detection device, 8 - overflow bucket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0019] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that if terms such as "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if terms such as "arrangement", "installation", "configuration", "connection" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] Embodiment

[0023] Please refer to Figures 1-3 , this embodiment provides a water level control device for a circulating cooling water system, which includes a water seal bucket 1 and a water delivery pipe 2 communicated with the water seal bucket 1. An overflow bucket 8 is arranged in the water seal bucket 1. Cooling water overflows from the overflow bucket 8 into the water seal bucket 1 and then is discharged from the water delivery pipe 2.

[0024] In this embodiment, a first baffle 31, a second baffle 32 and a third baffle 33 are arranged in the water delivery pipe 2. The first baffle 31 and the second baffle 32 are fixed on the inner wall of the water delivery pipe 2. After the first baffle 31 and the second baffle 32 are spliced, they have the same cross-sectional shape as the water delivery pipe 2. For example, if the cross-sectional shape of the water delivery pipe 2 is circular, then the first baffle 31 and the second baffle 32 are also circular after being spliced, and the diameter is the same as that of the water delivery pipe 2. The first baffle 31 and the second baffle 32 are staggeredly distributed, that is, a drainage channel is ensured to be left between the first baffle 31 and the second baffle. In this embodiment, the first baffle 31 is located below the second baffle 32. In this way, the cooling water can flow out from the drainage channel between the first baffle 31 and the second baffle.

[0025] The third baffle 33 is slidably connected to the pipe wall of the water delivery pipe 2. Specifically, a limiting groove 4 is provided on the pipe wall of the water delivery pipe 2 for the up-and-down movement of the third baffle 33 and to prevent deviation. The third baffle 33 slides along the limiting groove 4 to close or open the drainage channel. To achieve the sliding of the third baffle 33, a driving motor 5 and a cable 6 are provided in this embodiment. The driving motor 5 can be arranged inside the water seal bucket 1 or installed outside the water seal bucket 1. The driving motor 5 is equipped with a controller, such as a PLC. One end of the cable 6 is connected to the driving motor 5, and the other end of the cable 6 is connected to the third baffle 33. The driving motor 5 drives the third baffle 33 to open and close through the cable 6. When it is necessary to open or increase the opening degree of the drainage channel, the driving motor 5 winds up the cable 6 to raise the third baffle 33, so as to open the drainage channel or increase the opening degree. When it is necessary to close or reduce the opening degree of the drainage channel, the driving motor 5 releases the cable 6, and the third baffle 33 descends under the action of its own weight to close the drainage channel or reduce the opening degree of the drainage channel.

[0026] It should be noted that the diameter of the water delivery pipeline is 1.2 meters. The first baffle 31, the second baffle 32, and the third baffle 33 are all made of steel plates. The third baffle 33 can be weighted according to needs. Therefore, in actual use, the third baffle 33 can smoothly fall under the action of its own weight and will not be unable to fall due to the reason of water pressure.

[0027] In this embodiment, the water seal bucket 1 is provided with a liquid level detection device 7. The liquid level detection device 7 is connected to the controller. The controller automatically controls the opening degree of the third baffle 33 according to the feedback data of the liquid level detection device 7 to respond to the change of the water level in the water seal bucket 1. Specifically, the liquid level detection device 7 adopts an ultrasonic liquid level gauge to detect the liquid level change of the water seal bucket 1 in real time. At the same time, corresponding thresholds are preset in the controller. When the liquid level in the water seal bucket 1 exceeds the highest threshold, the controller controls the third baffle 33 to rise a certain distance, increases the opening degree of the drainage channel, and increases the drainage flow rate, so that the liquid level in the water seal bucket 1 drops. When the liquid level in the water seal bucket 1 is lower than the lowest threshold, the controller controls the third baffle 33 to descend a certain distance, reduces the opening degree of the drainage channel, and reduces the drainage flow rate, so that the liquid level in the water seal bucket 1 rises. When the liquid level in the water seal bucket 1 is between the highest threshold and the lowest threshold, the controller controls the third baffle 33 to maintain the current state and keep the current opening degree and flow rate of the drainage channel. Those skilled in the art can also manually input commands as needed to control the lifting of the third baffle 33 to regulate the liquid level in the water seal bucket 1.

[0028] In this application, a water seal is formed by the first baffle 31, the second baffle 32 and the third baffle 33. The opening degree of the drainage channel is automatically controlled by the controller. Specifically, the controller determines the height of the third baffle 33 according to the liquid level height in the water seal bucket 1, and the height of the third baffle 33 determines the water flow rate of the drainage channel, so as to achieve the purpose of controlling the water conveyance flow rate of the water conveyance pipe 2 of the water seal bucket 1, avoiding the cooling water carrying air into the pipeline and the tank body, and delaying the corrosion of the pipeline and the tank body. Moreover, the production cost can be reduced. In the existing production, generally a large-diameter butterfly valve is installed on the water conveyance pipe to control the flow rate of the water conveyance pipe. However, the large-diameter butterfly valve is expensive. By adopting the solution of this application, the cost can be reduced.

[0029] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water level control device for a circulating cooling water system, comprising a water seal barrel and a water delivery pipe communicated with the water seal barrel, characterized in that, A first baffle, a second baffle and a third baffle are arranged in the water delivery pipe. A drainage channel is left between the first baffle and the second baffle. The third baffle is slidably connected to the pipe wall of the water delivery pipe, and the third baffle can close or open the drainage channel.

2. The water level control device for a circulating cooling water system according to claim 1, characterized in that It further includes a driving motor and a cable. One end of the cable is connected to the driving motor, and the other end of the cable is connected to the third baffle. The driving motor drives the third baffle to open and close through the cable.

3. The water level control device for the circulating cooling water system according to claim 1, wherein A limiting groove is arranged on the pipe wall of the water delivery pipe, and the third baffle slides along the limiting groove.

4. The water level control device for the circulating cooling water system according to claim 1, characterized in that, The water seal bucket is provided with a liquid level detection device.

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