Flash evaporator

By designing detachable filter plates and spraying mechanisms, the problems of fixed and irreplaceable filter screens and inconvenient cleaning of the inner wall of the tank are solved, achieving a long service life and efficient operation of the equipment.

CN223474429UActive Publication Date: 2025-10-28ZHANGJIAGANG DEHAI BOILER CO LTD
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Patent Information

Application Number
CN202422266368.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-10-28
Estimated Expiration
2034-09-18

AI Technical Summary

Technical Problem

The filter screen in the existing flash evaporator is fixed and cannot be removed, which makes it easy to be damaged by the impact of water flow. It cannot be effectively replaced, which affects the service life of the equipment. At the same time, it is inconvenient to clean the inner wall of the tank.

Method used

The design incorporates a detachable filter plate structure and spraying mechanism, allowing for filter plate replacement via bolt connections and cleaning of the tank's inner wall via the spraying mechanism.

Benefits of technology

It extends the service life of the equipment, ensures the cleanliness of the inner wall of the tank, and improves the operating efficiency and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flash evaporator, and particularly relates to the technical field of flash evaporators, the flash evaporator comprises a tank body, the bottom of the tank body is fixedly communicated with a discharge pipe, the discharge pipe is internally provided with a filtering mechanism for cleaning solid impurities contained in liquid, the top of the tank body is fixedly communicated with an air outlet pipe, the tank body is internally provided with a plurality of partition plates, and the partition plates are arranged in the tank body. A plurality of partition plates are arranged at the bottom of the tank body, each partition plate is provided with a plurality of liquid outlets, one side of the tank body is fixedly communicated with a feeding pipe, a second switch valve is arranged outside the feeding pipe, the filtering mechanism comprises four connecting rods arranged at the bottom of the tank body, the bottoms of the four connecting rods are provided with the same filtering plate, and a plurality of through holes are formed in the filtering plate. The filter plate can be taken down and replaced with a new filter plate through the filter mechanism, the service life of the filter tank is prolonged, the inner wall of the tank body can be cleaned through the spraying mechanism, and cleanliness of the interior of the tank body is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of flash evaporator technology, and specifically to a flash evaporator. Background Technology

[0002] A flash evaporator for boilers is a device that utilizes the rapid vaporization of condensate produced after cooling with high-pressure steam in a low-pressure environment. When high-pressure condensate is suddenly released into a low-pressure environment, due to the sudden drop in pressure, some of the condensate will rapidly evaporate into steam; this process is called flash evaporation. The core function of a flash evaporator is to capture and collect this flash steam for reuse, thereby improving energy efficiency.

[0003] For example, Chinese patent application No. 202320757200.6 discloses a vacuum flash evaporator, including a tank body. The inner cavity of the tank body is a vacuum environment. A liquid inlet pipe is welded to the side wall of the tank body, an outlet pipe is welded to the top wall of the tank body, and a liquid outlet pipe is welded to the bottom wall of the tank body. Support legs are welded to the four corners of the bottom wall of the tank body, and each of the four support legs is welded to a base. A top seat is welded to one side of the top wall of the base. A water tank is welded to the top wall of the top seat, and a water pump is installed at the center of the top wall of the water tank. A suction pipe is connected to the water pump. One end of the suction pipe passes through the top wall of the water tank and extends to the bottom of the inner cavity of the water tank. The other end of the suction pipe passes through the top wall of the tank body and is connected to a nozzle, which is installed at the top of the inner cavity of the tank body. This technical solution ensures that almost no liquid remains on the inner wall and partitions of the tank body, guaranteeing that the inner wall and internal structure of the tank body are virtually free from corrosion.

[0004] However, the following problems still exist in this technical solution: the filter screen in this technical solution filters solid impurities in the liquid. Under the impact of water flow, the filter screen is easily damaged. However, the filter screen in this device is fixed to the connecting rod and cannot be removed from the connecting rod for replacement. Utility Model Content

[0005] The purpose of this invention is to provide a flash evaporator that allows the filter plate to be removed and replaced with a new one through a filtration mechanism, thereby extending the service life of the invention. It also allows the inner wall of the tank to be cleaned through a spraying mechanism, ensuring the cleanliness of the tank interior, thus addressing the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flash evaporator, comprising a tank body, a discharge pipe fixedly connected to the bottom of the tank body, a filter mechanism for cleaning solid impurities contained in the liquid being provided inside the discharge pipe, an air outlet pipe fixedly connected to the top of the tank body, multiple baffles being provided inside the tank body, each baffle having multiple liquid outlets, an inlet pipe fixedly connected to one side of the tank body, and a second switching valve being provided outside the inlet pipe.

[0007] Preferably, the filtration mechanism includes four connecting rods at the bottom of the tank, the bottom of the four connecting rods is provided with the same filter plate, the filter plate has multiple through holes, the filter plate is provided with four connecting plates on the outside, each connecting plate has a first threaded hole, each connecting rod has a second threaded hole at its bottom, and the first threaded hole and the second threaded hole are connected internally with the same bolt for cleaning solid impurities contained in the liquid.

[0008] Preferably, a spraying mechanism for cleaning the inner wall of the tank is provided on one side of the tank body. The spraying mechanism includes a water tank located on one side of the tank body, a water pump located at the top of the water tank, a suction pipe fixedly connected to the inlet of the water pump, the bottom end of the suction pipe extending into the interior of the water tank, an outlet pipe fixedly connected to the outlet of the water pump, the top end of the outlet pipe extending into the top of the tank body, a nozzle fixedly connected to one end of the outlet pipe extending into the interior of the tank body, an inlet pipe fixedly connected to the top of the water tank, and a first switch valve located outside the inlet pipe for cleaning the inner wall of the tank body.

[0009] Preferably, a connecting pipe is fixedly connected to one side of the water tank, a float is provided inside the connecting pipe, a support rod is fixedly provided at the top of the float, the top of the support rod passes through the connecting pipe and extends out of the top of the connecting pipe, a pressing plate is fixedly provided at the top of the support rod, an alarm is provided at the top of the water tank for issuing an alarm, and a touch switch for controlling the alarm is provided at the top of the connecting pipe for issuing an alarm.

[0010] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0011] 1. When the filter plate needs to be replaced, turn the bolt to unscrew it from the second threaded hole and the first threaded hole. The filter plate can then be removed from the bottom of the four connecting rods and replaced with a new filter plate, thus extending the service life of this utility model.

[0012] 2. Start the water pump to draw water from inside the tank into the suction pipe. The water then flows through the suction pipe into the outlet pipe and is sprayed out through the nozzles on the outlet pipe to clean the inner wall of the tank and ensure its cleanliness. Attached Figure Description

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a rear view of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0017] Figure 4 This is a schematic diagram of the filtration mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the spraying mechanism of this utility model;

[0019] Figure 6 This is a cross-sectional view of the water tank of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1 tank body, 2 discharge pipes;

[0022] 3. Filtering mechanism, 301. Connecting rod, 302. Filter plate, 303. Through hole, 304. Connecting plate, 305. First threaded hole, 306. Second threaded hole, 307. Bolt;

[0023] 4 Spraying mechanism, 401 Water tank, 402 Water pump, 403 Water outlet pipe, 404 Sprayer head, 405 Water suction pipe, 406 Water inlet pipe, 407 First switch valve, 408 Connecting pipe, 409 Float, 410 Support rod, 411 Press plate, 412 Alarm, 413 Tactile switch;

[0024] 5. Air outlet pipe, 6. Feed pipe, 7. Second switch valve, 8. Baffle plate, 9. Liquid outlet. Detailed Implementation

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-6A flash evaporator is shown, comprising a tank body 1, a discharge pipe 2 fixedly connected to the bottom of the tank body 1, a filter mechanism 3 for cleaning solid impurities contained in the liquid inside the discharge pipe 2, an air outlet pipe 5 fixedly connected to the top of the tank body 1, multiple baffles 8 inside the tank body 1, each baffle 8 having multiple liquid outlets 9, a feed pipe 6 fixedly connected to one side of the tank body 1, and a second switching valve 7 outside the feed pipe 6;

[0027] The filtering mechanism 3 includes four connecting rods 301 located at the bottom of the tank body 1. The bottom of the four connecting rods 301 is provided with the same filter plate 302. The filter plate 302 has multiple through holes 303. The filter plate 302 is provided with four connecting plates 304. Each connecting plate 304 has a first threaded hole 305. The bottom of each connecting rod 301 has a second threaded hole 306. The first threaded hole 305 and the second threaded hole 306 are connected internally with the same bolt 307.

[0028] First, connect the feed pipe 6 to the external pipeline for transporting the gas-liquid mixture, and open the second switch valve 7. The gas-liquid mixture enters the tank 1 through the feed pipe 6, and the liquid falls onto the baffle 8 and drips down through the liquid outlet 9 on the baffle 8. After the gas and liquid are separated relatively completely, the gas will be discharged from the gas outlet pipe 5, and the liquid will be discharged from the feed pipe 2. When the liquid is discharged, it is filtered by the filter plate 302 to remove the solid impurities contained in the liquid and obtain a purer liquid.

[0029] Under the impact of water flow, the filter plate 302 is easily damaged. When the filter plate 302 is damaged, it needs to be replaced. By turning the bolt 307 and turning the bolt 307 out of the second threaded hole 306 and the first threaded hole 305, the filter plate 302 can be removed from the bottom of the four connecting rods 301 and replaced with a new filter plate 302, thus extending the service life of this utility model.

[0030] like Figure 5 As shown, a spraying mechanism 4 for cleaning the inner wall of the tank 1 is provided on one side of the tank body 1. The spraying mechanism 4 includes a water tank 401 on one side of the tank body 1. A water pump 402 is provided on the top of the water tank 401. The inlet of the water pump 402 is fixedly connected to a suction pipe 405. The bottom end of the suction pipe 405 extends into the interior of the water tank 401. The outlet of the water pump 402 is fixedly connected to an outlet pipe 403. The top end of the outlet pipe 403 extends into the top of the interior of the tank body 1. One end of the outlet pipe 403 extending into the interior of the tank body 1 is fixedly connected to a nozzle 404. An inlet pipe 406 is fixedly connected to the top of the water tank 401. A first switch valve 407 is provided outside the inlet pipe 406.

[0031] Start the water pump 402 to draw water from inside the water tank 401 into the suction pipe 405. The water then enters the outlet pipe 403 through the suction pipe 405 and is sprayed out through the nozzle 404 on the outlet pipe 403 to clean the inner wall of the tank 1 and ensure the cleanliness of the inside of the tank 1.

[0032] like Figure 6 As shown, a connecting pipe 408 is fixedly connected to one side of the water tank 401. A float 409 is provided inside the connecting pipe 408. A support rod 410 is fixedly provided at the top of the float 409. The top of the support rod 410 passes through the connecting pipe 408 and extends out of the top of the connecting pipe 408. A pressing plate 411 is fixedly provided at the top of the support rod 410. An alarm 412 for issuing an alarm is provided at the top of the water tank 401. A tactile switch 413 for controlling the alarm 412 is provided at the top of the connecting pipe 408.

[0033] As the water level inside the water tank 401 gradually decreases, the float ball 409 will also move downwards. The downward movement of the float ball 409 will cause the pressing plate 411 to move downwards. The downward movement of the pressing plate 411 will touch the touch switch 413, which will activate the alarm 412. The alarm 412 will sound an alarm to remind the staff that water needs to be added to the water tank 401. The staff will open the first switch valve 407 and pour water into the tank 1 through the water inlet pipe 406 to avoid affecting the cleaning effect of the inner wall of the tank 1.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flash evaporator, comprising a tank (1), characterized in that: The bottom of the tank (1) is fixedly connected to a discharge pipe (2), and the discharge pipe (2) is equipped with a filter mechanism (3) for cleaning solid impurities contained in the liquid. The filtering mechanism (3) includes four connecting rods (301) at the bottom of the tank (1). The bottom of the four connecting rods (301) is provided with the same filter plate (302). The filter plate (302) is provided with multiple through holes (303). The filter plate (302) is provided with four connecting plates (304) on the outside. Each connecting plate (304) is provided with a first threaded hole (305). The bottom of each connecting rod (301) is provided with a second threaded hole (306). The first threaded hole (305) and the second threaded hole (306) that are connected to each other are internally threaded with the same bolt (307). The tank (1) is provided with a spraying mechanism (4) on one side for cleaning the inner wall of the tank (1).

2. A flash evaporator according to claim 1, characterized in that: The top of the tank (1) is fixedly connected to an air outlet pipe (5), and the tank (1) is provided with multiple partitions (8), each of which has multiple liquid outlets (9).

3. A flash evaporator according to claim 1, characterized in that: A feed pipe (6) is fixedly connected to one side of the tank (1), and a second switch valve (7) is provided outside the feed pipe (6).

4. A flash evaporator according to claim 1, characterized in that: The spraying mechanism (4) includes a water tank (401) located on one side of the tank body (1). A water pump (402) is provided on the top of the water tank (401). The inlet of the water pump (402) is fixedly connected to a suction pipe (405). The bottom end of the suction pipe (405) extends into the water tank (401). The outlet of the water pump (402) is fixedly connected to an outlet pipe (403). The top end of the outlet pipe (403) extends into the top of the tank body (1). One end of the outlet pipe (403) extending into the tank body (1) is fixedly connected to a nozzle (404).

5. A flash evaporator according to claim 4, characterized in that: The top of the water tank (401) is fixedly connected to a water inlet pipe (406), and a first switch valve (407) is provided outside the water inlet pipe (406).

6. A flash evaporator according to claim 4, characterized in that: A connecting pipe (408) is fixedly connected to one side of the water tank (401). A float (409) is provided inside the connecting pipe (408). A support rod (410) is fixedly provided at the top of the float (409). The top of the support rod (410) passes through the connecting pipe (408) and extends out of the top of the connecting pipe (408). A pressing plate (411) is fixedly provided at the top of the support rod (410). An alarm (412) for issuing an alarm is provided at the top of the water tank (401). A tactile switch (413) for controlling the alarm (412) is provided at the top of the connecting pipe (408).

Citation Information

Patent Citations

  • Vacuum flash tank

    CN219764520U