Evaporation device for gas field water treatment

Abstract

The utility model provides an evaporation device for gas field water treatment, and belongs to the technical field of gas field water treatment. The falling film evaporator solves the problem that an existing falling film evaporator for gas field water is poor in evaporation effect. The device comprises a tank body, a first partition plate, a second partition plate and a third partition plate are sequentially arranged in the tank body from top to bottom, the side portion of the tank body is provided with a liquid inlet communicated with a liquid inlet cavity, a steam inlet and a steam outlet, the steam inlet and the steam outlet are communicated with a heat exchange cavity, and the bottom of the tank body is provided with a liquid outlet communicated with a separation cavity. A plurality of heat exchange pipes used for communicating the liquid inlet cavity with the separation cavity vertically penetrate through the heat exchange cavity, a plurality of air guide pipes which are equal to the heat exchange pipes in number and are arranged in one-to-one correspondence with the heat exchange pipes vertically penetrate through the liquid inlet cavity, the upper ends of the air guide pipes are communicated with the steam cavity, and the lower ends of the air guide pipes extend into the corresponding heat exchange pipes; and an overflowing gap surrounding the air guide pipe is formed between the air guide pipe and the heat exchange pipe. The evaporator is reasonable in structural design and good in evaporation effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the gas field water processing technical field relates to a kind of evaporation devices for gas field water treatment. BACKGROUND

[0002] Gas field water due to containing a large amount of impurities and the substance harmful to environment, only after treatment gas field water can be discharged to environment, gas field water is evaporator in the processing process. China patent discloses a kind of gas field water falling film evaporator [grant announcement number CN205164163U], including tank body, be located on the inlet and outlet of tank body and the gas-liquid separation chamber of setting in tank body side, tank body is from top to bottom in turn distribution chamber, evaporation chamber and condensation chamber, the side wall of evaporation chamber is equipped with steam inlet, condensation chamber is connected with gas-liquid separation chamber by connecting pipeline, and multiple vertical pipes are arranged in evaporation chamber, and the upper and lower ends of vertical pipe pass through evaporation chamber side wall and are connected with distribution chamber and condensation chamber respectively.

[0003] The above-mentioned evaporator in evaporation process, steam generated by heat exchange of gas field water in vertical pipe moves from bottom to top to distribution chamber, since steam outlet is not arranged at distribution chamber, steam is mixed with gas field water again after being cooled into water in distribution chamber, and evaporation effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned problems existing in prior art, and provides an evaporation device for gas field water treatment with good evaporation effect.

[0005] The utility model can be realized by the following technical schemes:

[0006] An evaporation device for gas field water treatment, including tank body, first baffle, second baffle and third baffle are sequentially arranged from top to bottom in the tank body, the first baffle, second baffle and third baffle divide the inner cavity of tank body into steam chamber, liquid inlet chamber, heat exchange chamber and separation chamber arranged from top to bottom, the side of tank body is equipped with the liquid inlet port communicated with liquid inlet chamber, steam inlet and steam outlet communicated with heat exchange chamber, the bottom of tank body is equipped with the liquid outlet port communicated with separation chamber, a plurality of heat exchange pipes for communicating liquid inlet chamber and separation chamber are vertically arranged in heat exchange chamber, a plurality of gas guide pipes corresponding to the number of heat exchange pipes are vertically arranged in liquid inlet chamber, the upper end of gas guide pipe is communicated with steam chamber, the lower end of gas guide pipe extends into corresponding heat exchange pipe, and overflow gap is formed between gas guide pipe and heat exchange pipe.

[0007] The lower end of the air guide pipe extends into the heat exchange pipe and forms a flow gap with the heat exchange pipe, and the entering gas field water flows along the inner wall of the heat exchange pipe under the blocking effect of the air guide pipe, and the evaporated water vapor moves upward along the air guide pipe to the steam chamber and is discharged from the gas outlet provided at the top of the pipe body.

[0008] In the above-mentioned evaporation device for gas field water treatment, the lower end of the air guide pipe has a gradually increasing trumpet portion from bottom to top.

[0009] The trumpet portion can make the downward flowing gas field water further adhere to the inner wall of the heat exchange pipe, and increase the inlet diameter, facilitating the entry of the evaporated water vapor into the air guide pipe.

[0010] In the above-mentioned evaporation device for gas field water treatment, the air guide pipe is coaxially arranged with the heat exchange pipe.

[0011] In the above-mentioned evaporation device for gas field water treatment, the second partition plate has a plurality of through holes arranged one-to-one with the heat exchange pipes, the upper end of the heat exchange pipe is arranged in the corresponding through hole, and the upper end of the heat exchange pipe is not higher than the upper surface of the second partition plate.

[0012] Since the upper end of the heat exchange pipe is not higher than the upper surface of the second partition plate, the gas field water entering the liquid inlet cavity can easily enter the heat exchange pipe without being blocked by the heat exchange pipe.

[0013] In the above-mentioned evaporation device for gas field water treatment, the steam inlet and the steam outlet are located on opposite sides of the tank body, and the residence time of steam in the heat exchange cavity is as long as possible.

[0014] In the above-mentioned evaporation device for gas field water treatment, a plurality of partition plates are arranged in the heat exchange cavity and extend vertically, the upper end of the partition plate at the odd position is connected with the second partition plate, and the lower end of the partition plate at the odd position forms a first channel with the third partition plate, the lower end of the partition plate at the even position is connected with the third partition plate, and the upper end of the partition plate at the even position forms a second channel with the second partition plate, the plurality of partition plates divide the heat exchange cavity into a tortuous flow channel, the steam inlet is communicated with the beginning of the flow channel, and the steam outlet is communicated with the end of the flow channel.

[0015] The flow path of high-temperature steam is increased by the partition plates, so that multiple heat exchange pipes can exchange heat with high-temperature steam, and the evaporation is effectively ensured.

[0016] Compared with the prior art, the evaporation device for gas field water treatment has the following advantages:

[0017] The gas field water entering the heat exchange tube flows downward along the inner wall of the heat exchange tube due to the obstruction of the gas guide pipe, while the evaporated water vapor moves upward along the gas guide pipe to the steam chamber. The flared part can make the downward flowing gas field water adhere more closely to the inner wall of the heat exchange tube, and at the same time facilitate the entry of the evaporated water vapor into the gas guide pipe, resulting in good heat exchange effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a preferred embodiment provided by this utility model.

[0019] Figure 2 This is an enlarged schematic diagram of the junction between the air duct and the heat exchange tube.

[0020] Figure 3 This is a cross-sectional view of the heat exchange cavity.

[0021] In the diagram, 1 is the tank body; 2 is the first partition; 3 is the second partition; 4 is the third partition; 5 is the steam chamber; 6 is the liquid inlet chamber; 7 is the heat exchange chamber; 8 is the separation chamber; 9 is the liquid inlet; 10 is the steam inlet; 11 is the steam outlet; 12 is the liquid outlet; 13 is the heat exchange tube; 14 is the gas guide pipe; 15 is the flow gap; 16 is the flared section; 17 is the partition plate; 18 is the first channel; and 19 is the second channel. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] like Figure 1 The evaporation device for gas field water treatment shown includes a cylindrical tank 1. Inside the tank 1, from top to bottom, are arranged a first partition 2, a second partition 3, and a third partition 4. These partitions divide the inner cavity of the tank 1 into a steam chamber 5, a liquid inlet chamber 6, a heat exchange chamber 7, and a separation chamber 8, arranged from top to bottom. The top of the tank 1 has a steam outlet, and the side of the tank 1 has a liquid inlet 9 communicating with the liquid inlet chamber 6, a steam inlet 10 communicating with the heat exchange chamber 7, and a steam outlet. 11. The bottom of the tank body 1 is provided with a liquid outlet 12 that communicates with the separation chamber 8. Several heat exchange tubes 13 for connecting the liquid inlet chamber 6 and the separation chamber 8 are vertically inserted in the heat exchange chamber 7. Several air guide tubes 14 are vertically inserted in the liquid inlet chamber 6 in a number equal to and corresponding to the number of heat exchange tubes 13. The upper end of the air guide tube 14 is connected to the steam chamber 5, and the lower end of the air guide tube 14 extends into the corresponding heat exchange tube 13. A flow gap 15 is formed between the air guide tube 14 and the heat exchange tube 13, which surrounds the air guide tube 14.

[0024] like Figure 2As shown, the lower end of the gas guide pipe 14 has a gradually increasing trumpet section 16 from bottom to top, which can make the downward flowing gas field water further close to the inner wall of the heat exchange pipe 13, and meanwhile increase the inlet caliber, facilitating the evaporated water vapor to enter the gas guide pipe 14.

[0025] In this embodiment, the gas guide pipe 14 is coaxially arranged with the heat exchange pipe 13.

[0026] As shown in Figure 1 and Figure 2 , the second partition plate 3 has a plurality of perforations arranged one-to-one with the heat exchange pipe 13, the upper end of the heat exchange pipe 13 is arranged in the corresponding perforation, and the upper end of the heat exchange pipe 13 is not higher than the upper surface of the second partition plate 3. Since the upper end of the heat exchange pipe 13 is not higher than the upper surface of the second partition plate 3, the gas field water entering the liquid inlet chamber 6 can easily enter the heat exchange pipe 13 without being blocked by the heat exchange pipe 13.

[0027] In this embodiment, the steam inlet 10 and the steam outlet 11 are located at opposite sides of the tank body 1.

[0028] As shown in Figure 1 and Figure 3 , a plurality of partition plates 17 extending vertically and parallel to each other are arranged in the heat exchange chamber 7, the upper end of the partition plate 17 at the odd position is connected with the second partition plate 3, and the lower end thereof is connected with the third partition plate 4 to form a first passage 18, the lower end of the partition plate 17 at the even position is connected with the third partition plate 4, and the upper end thereof is connected with the second partition plate 3 to form a second passage 19, the plurality of partition plates 17 divide the heat exchange chamber 7 into a meandering flow passage, the steam inlet 10 is communicated with the initial end of the flow passage, and the steam outlet 11 is communicated with the terminal end of the flow passage. The flow path of the high-temperature steam is increased, so that the plurality of heat exchange pipes 13 can all exchange heat with the high-temperature steam.

[0029] In operation, the gas field water enters the liquid inlet chamber 6 through the liquid inlet 9, and enters the heat exchange pipe 13 through the flow gap 15, and flows downward along the inner wall of the heat exchange pipe 13, while the high-temperature steam enters the heat exchange chamber 7 through the steam inlet 10, and is discharged through the steam outlet 11 after heat exchange. The steam generated in the heat exchange process enters the steam chamber 5 through the gas guide pipe 14, and is finally discharged through the gas outlet.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. An evaporation apparatus for treating gas field water, characterized by comprising: The application relates to a steam generator, which comprises a tank (1), wherein a first baffle (2), a second baffle (3) and a third baffle (4) are sequentially arranged from top to bottom in the tank (1), the first baffle (2), the second baffle (3) and the third baffle (4) divide the inner cavity of the tank (1) into a steam cavity (5), a liquid inlet cavity (6), a heat exchange cavity (7) and a separation cavity (8) sequentially arranged from top to bottom, the side of the tank (1) is provided with a liquid inlet (9) communicated with the liquid inlet cavity (6), a steam inlet (10) communicated with the heat exchange cavity (7) and a steam outlet (11), the bottom of the tank (1) is provided with a liquid outlet (12) communicated with the separation cavity (8), a plurality of heat exchange pipes (13) for connecting the liquid inlet cavity (6) and the separation cavity (8) are vertically arranged in the heat exchange cavity (7), a plurality of air guide pipes (14) corresponding to the heat exchange pipes (13) are vertically arranged in the liquid inlet cavity (6), the upper end of the air guide pipe (14) is communicated with the steam cavity (5), the lower end of the air guide pipe (14) extends into the corresponding heat exchange pipe (13), and the air guide pipe (14) and the heat exchange pipe (13) form a flow gap (15) surrounding the air guide pipe (14).

2. The evaporation device for gas field water treatment according to claim 1, characterized by The lower end of the air guide pipe (14) has a gradually increasing horn portion (16) from bottom to top.

3. The evaporation apparatus for gas field water treatment according to claim 2, characterized in that, The air guide pipe (14) is coaxially arranged with the heat exchange pipe (13).

4. The evaporator apparatus for gas field water treatment of claim 1, wherein, The second baffle (3) is provided with a plurality of through holes corresponding to the heat exchange pipes (13), the upper end of the heat exchange pipe (13) is arranged in the corresponding through hole, and the upper end of the heat exchange pipe (13) is not higher than the upper surface of the second baffle (3).

5. The evaporator apparatus for gas field water treatment of claim 1, wherein, The steam inlet (10) and the steam outlet (11) are located on opposite sides of the tank (1).

6. The evaporation apparatus for gas field water treatment according to claim 5, characterized in that A plurality of partition plates (17) extending vertically and parallel to each other are arranged in the heat exchange cavity (7), the upper end of the partition plate (17) located at an odd position is connected with the second baffle (3), a first channel (18) is formed between the lower end of the partition plate (17) and the third baffle (4), the lower end of the partition plate (17) located at an even position is connected with the third baffle (4), a second channel (19) is formed between the upper end of the partition plate (17) and the second baffle (3), the heat exchange cavity (7) is divided into a winding flow channel by the plurality of partition plates (17), the steam inlet (10) is communicated with the initial end of the flow channel, and the steam outlet (11) is communicated with the terminal end of the flow channel.

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