Mvr evaporator water collection device

Abstract

The utility model discloses a kind of MVR evaporator water-collecting devices, it relates to copper electrolysis technical field.The MVR evaporator water-collecting device, including steam rising pipeline, the lower side connection compressor steam outlet of steam rising pipeline, the upper side connection MVR heat exchanger inlet pipeline of steam rising pipeline, four cooling water sprayers are fixedly welded on the outer surface of steam rising pipeline, water-collecting device is fixedly welded on the inner surface of steam rising pipeline, drain pipe is fixedly welded on the front side of steam rising pipeline outer surface, drain hole is provided in the front side of steam rising pipeline, drain hole extends into the inside of steam rising pipeline, auxiliary mechanism is provided on water-collecting device, can realize uninterrupted continuous water spraying cooling, stable control heat exchanger inlet steam temperature, avoid steam temperature excessively high damage heat exchanger, improve heat exchanger service life, extend heat exchanger replacement cycle, conducive to MVR long time continuous operation.

Description

Technical Field

[0001] This utility model relates to the field of copper electrolysis technology, specifically to a water collection device for an MVR evaporator. Background Technology

[0002] In the existing MVR evaporators in the copper electrolysis field, the compressor outlet steam temperature needs to be strictly controlled to ensure the normal operation of the equipment. The traditional MVR evaporator cooling device uses intermittent water spraying to reduce the steam temperature. This method is prone to causing condensate to enter the impeller, causing compressor vibration and shortening its lifespan. In addition, intermittent water spraying can also cause steam temperature fluctuations, affecting heat exchange efficiency and shortening the service life of heat exchange plates. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a water collection device for an MVR evaporator, which has a structure that can perform continuous water spraying for cooling and efficient water collection, thus avoiding the situation where condensate easily enters the impeller, thereby causing compressor vibration and shortening its lifespan. At the same time, it avoids the situation where steam temperature fluctuations affect heat exchange efficiency and lead to a shortened service life of the heat exchange plates.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an MVR evaporator water collection device, comprising a steam rising pipe, the lower side of which is connected to the compressor steam outlet, and the upper side of which is connected to the MVR heat exchanger inlet pipe. Four cooling water sprayers are fixedly welded to the outer surface of the steam riser pipe, and a water collection device is fixedly welded to the inner surface of the steam riser pipe. The water collection device is located below the cooling water sprayer, and a drain pipe is fixedly welded to the front side of the outer surface of the steam rising pipe. A drain hole is provided on the front side of the steam riser pipe, and the drain hole extends into the interior of the steam riser pipe. The interior of the drain pipe is connected to the interior of the drain hole. An auxiliary mechanism is provided on the water collection device. The auxiliary mechanism can protect the water mist sprayed from the atomizing nozzle and can also quickly discharge the condensate on the water collection device. The auxiliary mechanism includes a water-blocking top cover, four fixing rods, and a water flow guide block.

[0005] Preferably, the four cooling water sprayers are arranged in a ring array, and all four cooling water sprayers are PLC-controlled structures, with the spray nozzles of the cooling water sprayers extending into the inside of the pipe.

[0006] Preferably, the steam riser pipe is equipped with four atomizing nozzles, which are respectively connected to four cooling water sprayers. Each of the four cooling water sprayers is fixedly connected to a water supply pipe on the side away from each other.

[0007] Preferably, the water collection device consists of two parts: the lower half of a conical structure and the upper half of a cylindrical structure.

[0008] Preferably, the water-blocking top cover is installed on the upper side of the water-collecting device. The water-blocking top cover has a semi-circular arch structure, and the four fixing rods are all fixedly connected to the upper side of the cylindrical structure of the water-collecting device.

[0009] Preferably, the four fixing rods are arranged in a circular array, and the upper ends of the four fixing rods are fixedly connected to the water-blocking top cover, and the water flow guide block is fixedly connected to the upper side of the conical structure of the water collection device.

[0010] Preferably, the outer surface of the water flow guide block is in contact with the inner surface of the steam riser pipe, and the water flow guide block has an inclined structure that is lower in the front and higher in the back.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The water collection device of the MVR evaporator can realize continuous water spraying for cooling, stabilize the inlet steam temperature of the heat exchanger, avoid damage to the heat exchanger due to excessive steam temperature, improve the service life of the heat exchanger, extend the heat exchanger replacement cycle, and facilitate the long-term continuous operation of MVR.

[0012] (2) The water collection device of the MVR evaporator greatly reduces the water droplets falling onto the compressor impeller and impeller casing, thus preventing water droplets from hitting the impeller, reducing equipment vibration, extending the service life of the steam compressor impeller, and reducing production costs.

[0013] (3) The water collection device of the MVR evaporator has a semi-circular arched structure of the water baffle top cover, which can effectively block some of the water mist that falls onto the upper side of the water collection device after being sprayed by the cooling water sprayer. After the water mist falls on the water baffle top cover, it falls into the "V" shaped groove of the water collection device through its arc structure. This prevents the water mist from falling into the compressor through the cylindrical structure of the water collection device, protects the compressor from water vapor corrosion, and extends the service life of the compressor.

[0014] (4) The MVR evaporator water collection device has a water flow guide block with a front-low and rear-high inclined structure, which enables the water falling into the "V"-shaped groove of the water collection device to flow forward to the drain hole in time, and then be quickly discharged through the drain pipe, avoiding the accumulation of condensate in the "V"-shaped groove of the water collection device, and ensuring the normal operation of the water collection device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a water collection device for an MVR evaporator according to the present invention; Figure 2This is a schematic diagram of the cross-sectional connection structure of the steam riser pipe of this utility model; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a cross-sectional connection diagram of the water collection device of this utility model.

[0016] Reference numerals in the attached drawings: 1. Steam riser pipe; 2. Cooling water sprayer; 3. Water collection device; 4. Drain pipe; 5. Drain hole; 6. Atomizing nozzle; 7. Water supply pipe; 8. Water-blocking top cover; 9. Fixing rod; 10. Water flow guide block. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Please see Figure 1-4This utility model provides a new technical solution: a water collection device for an MVR evaporator, including a steam riser pipe 1. The lower side of the steam riser pipe 1 is connected to the steam outlet of the compressor, and the upper side of the steam riser pipe 1 is connected to the inlet pipe of the MVR heat exchanger. Four cooling water sprayers 2 are fixedly welded to the outer surface of the steam riser pipe 1. The four cooling water sprayers 2 are arranged in a ring array. All four cooling water sprayers 2 are PLC electrically controlled. The nozzles of the cooling water sprayers 2 extend into the pipe. Four atomizing nozzles 6 are installed inside the steam riser pipe 1. The four atomizing nozzles 6 are respectively connected to the four cooling water sprayers 2. Water supply pipes 7 are fixedly connected to the sides of the four cooling water sprayers 2 that are far apart from each other. A water collection device 3 is fixedly welded to the inner surface of the steam riser 1. The water collection device 3 is located below the cooling water sprayer 2. The water collection device 3 consists of two parts: the lower half of the conical structure and the upper half of the cylindrical structure. A drain pipe 4 is fixedly welded to the front side of the outer surface of the steam riser 1. A drain hole 5 is opened on the front side of the steam riser 1. The drain hole 5 extends into the interior of the steam riser 1. The interior of the drain pipe 4 is connected to the interior of the drain hole 5. An auxiliary mechanism is provided on the water collection device 3. The auxiliary mechanism can protect the water mist sprayed from the atomizing nozzle 6 and can also quickly discharge the condensate on the water collection device 3. The auxiliary mechanism includes a water-blocking top cover 8, four fixing rods 9 and a water flow guide block 10.

[0022] The water-blocking top cover 8 is installed on the upper side of the water-collecting device 3. The water-blocking top cover 8 has a semi-circular arch structure. Four fixing rods 9 are fixedly connected to the upper side of the cylindrical structure of the water-collecting device 3. The four fixing rods 9 are arranged in a ring array. The upper ends of the four fixing rods 9 are fixedly connected to the water-blocking top cover 8. The water flow guide block 10 is fixedly connected to the upper side of the conical structure of the water-collecting device 3. The outer surface of the water flow guide block 10 is in contact with the inner surface of the steam rising pipe 1. The water flow guide block 10 has an inclined structure that is lower in the front and higher in the back.

[0023] The steam riser pipe 1 is funnel-shaped, gradually widening from bottom to top, with steam entering from the bottom and exiting from the top.

[0024] Four cooling water sprayers 2 are controlled by PLC to continuously spray water for cooling.

[0025] The outer surface of the conical structure of the water collection device 3 is welded and fixed to the inner surface of the steam riser pipe 1. The cross-section of the two is "V" shaped and forms a groove with an included angle of 110°-130°. The bottom radius of the water collection device 3 is 340mm-360mm, the height of the bottom conical structure of the water collection device 3 is 15mm-25mm, the radius of the upper cylindrical structure of the water collection device 3 is 290mm-310mm, and the height of the upper cylindrical structure of the water collection device 3 is 25mm-35mm.

[0026] The drain pipe 4 is made of corrosion-resistant and high-temperature resistant stainless steel. The radius of the drain pipe 4 is 10-20mm. The rear side of the drain hole 5 is welded flush with the bottom of the water collection device 3. The drain pipe has an angle of 25°-35° with the horizontal.

[0027] Furthermore, during use, the steam riser pipe 1 is installed according to the connection requirements: the lower side connects to the compressor steam outlet, and the upper side connects to the MVR heat exchanger inlet pipe. After installation, the MVR evaporator is started. Steam flows out from the compressor, passes through the steam riser pipe 1, and moves to the position of the cooling sprayer 2. At this time, external cooling water enters the interior of the cooling sprayer 2 through the water supply pipe 7. The four cooling sprayers 2, controlled by the PLC, continuously spray water. The sprayed water is atomized through the atomizing nozzle 6. The water mist sprayed from the atomizing nozzle 6 cools the steam inside the steam riser pipe 1, so that the steam is cooled to a suitable temperature when it passes through the outlet of the steam riser pipe 1. The water sprayed from the cooling sprayer 2 flows along the pipe wall of the steam riser pipe 1 into the "V"-shaped groove of the water collection device 3, and is discharged through the drain hole 5 and the drain pipe 4, realizing continuous cooling and drainage of the MVR evaporator.

[0028] During the process of water sprayed from the cooling water sprayer 2 falling, some water mist will move to the upper side of the water collection device 3 and fall down. At this time, the water baffle cover 8 will block this part of the water mist, so that this part of the water mist will fall on the upper side of the water baffle cover 8. Then, through the arc structure of the water baffle cover 8, it will fall into the "V" shaped groove of the water collection device 3, preventing the water mist from falling into the compressor through the cylindrical structure of the water collection device 3. At the same time, the water falling into the "V" shaped groove will be on the upper side of the water flow guide block 10. Because the water flow guide block 10 is inclined with the front lower and the back higher, the water inside the "V" shaped groove will flow forward in time and finally flow to the position of the drain hole 5. Then, the condensate will be discharged through the drain pipe 4, preventing the condensate from accumulating inside the "V" shaped groove of the water collection device 3.

[0029] Structural Description: Steam Rising Pipe 1: The steam rising pipe 1 is funnel-shaped, gradually widening from bottom to top. This structure provides a reasonable channel for steam flow within the pipe, avoiding obstruction of steam flow. The lower side of the steam rising pipe 1 connects to the compressor steam outlet, and the upper side connects to the MVR heat exchanger inlet pipe. This connection method realizes the delivery of compressor output steam to the MVR heat exchanger. The steam flow direction of the steam rising pipe 1 is bottom inlet and top outlet, which meets the steam circulation requirements of the MVR evaporator. The outer surface of the steam rising pipe 1 is used to fix and weld four cooling water sprayers 2, providing an installation carrier for the cooling water sprayers 2. The inner surface of the steam rising pipe 1 is used to fix and weld water collection device 3, providing an installation carrier for the water collection device 3. A drain hole 5 is opened on the front side of the steam rising pipe 1, and a drain pipe 4 is fixedly welded to the front side of the outer surface of the steam rising pipe 1, providing a transition channel and output channel for the discharge of condensate.

[0030] Cooling water sprayers 2: Four cooling water sprayers 2 are fixedly welded to the outer surface of the steam riser pipe 1 in a ring array. This distribution method can achieve uniform cooling of the steam inside the steam riser pipe 1. The cooling water sprayers 2 are PLC-controlled structures, which can realize uninterrupted continuous water spraying through PLC control. This control method can stably control the steam temperature and avoid damage to the heat exchanger due to steam temperature fluctuations. The nozzles of the cooling water sprayers 2 extend into the steam riser pipe 1 to ensure that the sprayed water directly acts on the steam inside the steam riser pipe 1, thereby improving the cooling efficiency. The cooling water sprayers 2 are connected to four atomizing nozzles 6 respectively. The cooling water sprayers 2 can transfer the cooling water supplied by the water supply pipe 7 to the atomizing nozzles 6, providing a water source for the atomizing nozzles 6. The sides of the cooling water sprayers 2 that are far apart from each other are fixedly connected to the water supply pipe 7. The cooling water sprayers 2 can receive external cooling water through the water supply pipe 7 to provide a water source for their own water spraying and cooling.

[0031] Water collection device 3: The water collection device 3 is fixedly welded to the inner surface of the steam riser pipe 1 and is located below the cooling sprayer 2. This position can promptly collect the condensate flowing down the pipe wall of the steam riser pipe 1 after cooling. The water collection device 3 consists of a lower part of a conical structure and an upper part of a cylindrical structure. This structure provides a space for collecting condensate. The outer surface of the conical structure of the water collection device 3 is welded and fixed to the inner surface of the steam riser pipe 1. The cross-section of the two is "V" shaped and forms a groove with an included angle of 110°-130°. The bottom radius of the water collection device 3 is 340mm-360mm, the height of the bottom conical side is 15mm-25mm, and the radius of the upper cylindrical structure is 290mm- The upper cylindrical structure is 25mm-35mm high and 310mm in diameter. This size and shape design ensures that condensate is stably collected in the "V"-shaped groove, preventing it from flowing freely. Four fixing rods 9 are fixedly connected to the upper side of the cylindrical structure of the water collection device 3. The water collection device 3 provides a mounting carrier for the fixing rods 9 and supports the water-blocking top cover 8. A water flow guide block 10 is fixedly connected to the upper side of the conical structure of the water collection device 3. The water collection device 3 provides a mounting carrier for the water flow guide block 10, ensuring that the water flow guide block 10 stably performs its guiding function. The "V"-shaped groove of the water collection device 3 is welded flush with the rear side of the drain hole 5, allowing the condensate in the groove to flow smoothly into the drain hole 5 and preventing condensate from accumulating in the groove.

[0032] Drain pipe 4: Drain pipe 4 is made of corrosion-resistant and high-temperature resistant stainless steel. This material can adapt to the corrosive and high-temperature environment under copper electrolysis conditions, extending the service life of drain pipe 4. The radius of drain pipe 4 is 10-20mm, and the angle with the horizontal direction is 25°-35°. This size and angle design can ensure that the condensate is discharged smoothly under the action of gravity, avoiding pipe blockage. Drain pipe 4 is fixedly welded to the front side of the outer surface of steam rise pipe 1, and the inside of drain pipe 4 is connected to the inside of drain hole 5, which can discharge the condensate transmitted by drain hole 5 to the outside, completing the final output of condensate.

[0033] Drain hole 5: Drain hole 5 is opened on the front side of steam rise pipe 1 and extends into the interior of steam rise pipe 1. The interior of drain hole 5 is connected to the interior of drain pipe 4. At the same time, the rear side of drain hole 5 is welded flush with the bottom of water collection device 3. This structure can serve as a transition channel between water collection device 3 and drain pipe 4, allowing the condensate in the "V" shaped groove of water collection device 3 to flow smoothly into drain pipe 4.

[0034] Atomizing nozzle 6: There are four atomizing nozzles 6, which are installed inside the steam riser pipe 1 and connected one-to-one with the four cooling water sprayers 2. They can receive the cooling water delivered by the cooling water sprayers 2. The atomizing nozzle 6 can atomize the water delivered by the cooling water sprayers 2. This atomization effect can increase the contact area between the water and the steam inside the steam riser pipe 1, improve the cooling efficiency of the steam, and ensure that the steam is cooled to a suitable temperature when it passes through the outlet of the steam riser pipe 1.

[0035] Water supply pipe 7: Water supply pipe 7 is fixedly connected to the four cooling water sprayers 2 on the side away from each other. One end of water supply pipe 7 is connected to the external cooling water supply equipment, and the other end is connected to the cooling water sprayer 2. The function of water supply pipe 7 is to transport external cooling water to the cooling water sprayer 2, so as to provide a stable water source for the cooling water sprayer 2 to achieve uninterrupted continuous water spraying and cooling.

[0036] Water-blocking top cover 8: The water-blocking top cover 8 has a semi-circular arched structure and is installed on the upper side of the water collection device 3. It is stably connected to the water collection device 3 through four fixing rods 9. The function of the water-blocking top cover 8 is to block part of the falling water mist sprayed by the cooling water sprayer 2, preventing this part of the water mist from falling into the compressor from the middle of the cylindrical structure of the water collection device 3, and avoiding water droplets impacting the compressor impeller. The semi-circular arched structure of the water-blocking top cover 8 can guide the blocked water mist to slide down the arc surface, so that the water mist finally falls into the "V" shaped groove of the water collection device 3, ensuring that the condensate is effectively collected.

[0037] Fixed rods 9: There are four fixed rods 9, which are fixedly connected to the upper side of the cylindrical structure of the water collection device 3 in a ring array. The upper ends of the four fixed rods 9 are fixedly connected to the water-blocking top cover 8. The function of the fixed rods 9 is to provide stable support for the water-blocking top cover 8. The fixed rods 9 firmly fix the water-blocking top cover 8 to the upper side of the water collection device 3, ensuring that the water-blocking top cover 8 does not shift or fall off under the impact of water mist and vibration of equipment operation, and ensuring the stable operation of the water-blocking function.

[0038] Water flow guide block 10: The water flow guide block 10 has an inclined structure with a lower front and a higher back. It is fixedly connected to the upper side of the conical structure of the water collection device 3, and the outer surface of the water flow guide block 10 is in contact with the inner surface of the steam rise pipe 1. This installation method ensures that the water flow guide block 10 is stably fixed on the water collection device 3. The function of the water flow guide block 10 is to guide the condensate in the "V"-shaped groove of the water collection device 3. Due to the inclined structure of the water flow guide block 10 with a lower front and a higher back, the condensate in the groove can flow forward quickly and eventually flow to the drain hole 5, thus preventing the condensate from accumulating in the "V"-shaped groove of the water collection device 3.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A water collection device for an MVR evaporator, comprising a steam riser pipe (1), the lower side of which is connected to the steam outlet of a compressor, and the upper side of which is connected to the inlet pipe of an MVR heat exchanger. Four cooling water sprayers (2) are fixedly welded on the outer surface of the steam riser pipe (1), and a water collection device (3) is fixedly welded on the inner surface of the steam riser pipe (1). The water collection device (3) is located below the cooling water sprayer (2), and a drain pipe (4) is fixedly welded to the front side of the outer surface of the steam rising pipe (1). A drain hole (5) is provided on the front side of the steam riser pipe (1), the drain hole (5) extends into the interior of the steam riser pipe (1), and the interior of the drain pipe (4) is connected to the interior of the drain hole (5). The characteristic feature is that: The water collection device (3) is equipped with an auxiliary mechanism, which can protect the water mist sprayed by the atomizing nozzle (6) and also allow the condensate on the water collection device (3) to be discharged quickly. The auxiliary mechanism includes a water-blocking top cover (8), four fixing rods (9), and a water flow guide block (10).

2. The water collection device for an MVR evaporator according to claim 1, characterized in that: The four cooling water sprayers (2) are arranged in a ring array. All four cooling water sprayers (2) are PLC-controlled structures, and the nozzles of the cooling water sprayers (2) extend into the pipe.

3. The water collection device for an MVR evaporator according to claim 1, characterized in that: The steam riser pipe (1) is equipped with four atomizing nozzles (6), which are connected to four cooling water sprayers (2) respectively. Water supply pipes (7) are fixedly connected to the sides of the four cooling water sprayers (2) that are far apart from each other.

4. The water collection device for an MVR evaporator according to claim 1, characterized in that: The water collection device (3) consists of two parts: the lower half of a conical structure and the upper half of a cylindrical structure.

5. The water collection device for an MVR evaporator according to claim 1, characterized in that: The water-blocking top cover (8) is installed on the upper side of the water-collecting device (3). The water-blocking top cover (8) is a semi-circular arch structure, and the four fixing rods (9) are all fixedly connected to the upper side of the cylindrical structure of the water-collecting device (3).

6. The water collection device for an MVR evaporator according to claim 5, characterized in that: The four fixed rods (9) are arranged in a ring array. The upper ends of the four fixed rods (9) are fixedly connected to the water-blocking top cover (8). The water flow guide block (10) is fixedly connected to the upper side of the conical structure of the water collection device (3).

7. A water collection device for an MVR evaporator according to claim 6, characterized in that: The outer surface of the water flow guide block (10) is in contact with the inner surface of the steam riser pipe (1), and the water flow guide block (10) has an inclined structure with a lower front and a higher back.

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