A high-flux heat exchanger special for oilfield waste heat recovery

Abstract

The utility model discloses a kind of high-flux heat exchangers special for oilfield production plant waste heat recovery, including the device main body with inner cavity, the right end lower side of device main body is equipped with the coolant inlet being communicated with its inner cavity, the left end upper side of device main body is equipped with the coolant outlet being communicated with its inner cavity, coolant inlet to coolant outlet between by the flow guide plate being set in the inner cavity of device main body forms coolant channel, coolant outlet side is provided with heat medium inlet, the heat medium outlet corresponding being provided with below heat medium inlet, the left end part of the inner cavity of device main body is provided with multiple mutually parallel heat exchange plates, and heat exchange plate between forms heat medium channel, the outlet water channel of heat medium channel is serpentine pipe directly through flow guide plate;The utility model can set flow passage section according to reality demand, such as the number of serpentine pipe, self-defined ability is strong, heat medium channel overall width is very wide, it is favorable to reduce complex medium accumulation blockage, improve the efficiency and service life of heat exchanger.

Description

TECHNICAL FIELD

[0001] The utility model relates to high flux heat exchanger especially relates to a high flux heat exchanger special for oilfield production plant waste heat recovery. BACKGROUND

[0002] In the processing process of the oilfield production plant, the oil extraction sewage will first go through a desalination and sedimentation step to remove salt and other impurities. After this processing stage, the temperature of the sewage is usually 42 DEG C. Then the heat exchange is carried out through the produced water heat exchanger, and the temperature of the sewage will be reduced to about 39 DEG C. The source water after temperature reduction will then enter the heat pump unit, and under the action of the heat pump unit, the source water is heated, and the finally produced hot water temperature can reach 75 DEG C or even higher. These high-temperature hot water can be used for various heating needs, such as providing the required heat for oilfield facilities, or for other industrial or civil heating systems. However, the conventional heat exchanger used in the oilfield production plant generally has the problems of easy blockage, easy leakage and low heat energy recovery efficiency.

[0003] In order to solve these problems, we provide a high flux heat exchanger for the oilfield production plant use scene, which effectively solves the problems of easy blockage, easy leakage and low heat energy recovery efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme of a high flux heat exchanger special for oilfield production plant waste heat recovery.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme of a high flux heat exchanger special for oilfield production plant waste heat recovery.

[0006] Further, the refrigerant inlet and the refrigerant outlet are diagonally misaligned.

[0007] Further, the hot medium inlet is located on the upper side of the left end of the device body, and the hot medium outlet is located on the lower side of the left end of the device body and directly below the hot medium inlet.

[0008] Further, the plurality of heat exchange plates are arranged equidistantly in parallel, and a heat medium channel is arranged between any two adjacent heat exchange plates, and each heat medium channel is equipped with a serpentine pipe.

[0009] Further, the distance between any two adjacent heat exchange plates is 60-120mm, and the thickness of the heat exchange plate is 2.0-4.0mm.

[0010] Further, the serpentine pipe forms a bending structure in a serpentine arrangement in the inner cavity of the device main body, and the straight pipe structure of the serpentine pipe is straightly arranged through the flow guide plate.

[0011] Further, the diameter of the serpentine pipe is 50-100mm.

[0012] Further, the plurality of flow guide plates are arranged equidistantly from the left end to the right end in the inner cavity of the device main body, and any two adjacent flow guide plates are arranged in a staggered manner.

[0013] A high-flux heat exchanger special for waste heat recovery in an oilfield production plant, which can set the flow channel section according to the actual demand, such as the number of serpentine pipes, has strong customization ability, and has a wide overall width of the heat medium channel, which is beneficial to reduce the accumulation and blockage of complex medium and improve the efficiency and service life of the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model.

[0015] Figure 2 It is a left view of the utility model.

[0016] In the figure: 1, device main body; 2, cold medium inlet; 3, cold medium outlet; 4, heat medium inlet; 5, heat medium outlet; 6, heat medium channel; 7, heat exchange plate; 8, cold medium channel; 9, flow guide plate; 10, serpentine pipe. DETAILED DESCRIPTION

[0017] The utility model will be explained further in detail in combination with the drawings and specific embodiments.

[0018] For example, Figures 1-2As shown in the drawings, the embodiment relates to a high-flux heat exchanger special for waste heat recovery of an oilfield production plant, which comprises a device main body 1 provided with an inner cavity, a coolant inlet 2 communicating with the inner cavity of the device main body 1 is arranged at the lower side of the right end of the device main body 1, a coolant outlet 3 communicating with the inner cavity of the device main body 1 is arranged at the upper side of the left end of the device main body 1, a coolant channel 8 is formed between the coolant inlet 2 and the coolant outlet 3 through a flow guide plate 9 arranged in the inner cavity of the device main body 1, a heat medium inlet 4 is arranged at one side of the coolant outlet 3, a heat medium outlet 5 is correspondingly arranged below the heat medium inlet 4, a plurality of heat exchange plates 7 parallel to each other are arranged at the left end part of the inner cavity of the device main body 1, and a heat medium channel 6 is formed between the heat exchange plates 7, and a serpentine pipe 10 directly penetrating through the flow guide plate 9 is arranged in the heat medium channel 6. In the embodiment, the heat exchange effect is formed between the coolant channel 8 and the heat medium channel 6, and the innovation of the embodiment is that the flow guide plate 9 is not only used for forming the coolant channel 8, but also used for supporting the serpentine pipe 10 and absorbing the heat of the serpentine pipe 10, so that the heat exchange effect is further enhanced.

[0019] As shown in the drawings, Figure 1 The coolant inlet 2 and the coolant outlet 3 are diagonally staggered, which is beneficial to prolong the circulation time of the coolant medium in the inner cavity of the device main body 1 and enhance the heat exchange effect.

[0020] The heat medium inlet 4 is arranged at a position closer to the upper side of the free end of the left end of the device main body 1 than the coolant outlet 3, and the heat medium outlet 5 is arranged at the lower side of the free end of the left end of the device main body 1 and directly below the heat medium inlet 4. This design is beneficial to prolong the circulation time of the heat medium medium in the inner cavity of the device main body 1, and further prolong the heat exchange time of the heat medium medium and the coolant medium, so as to enhance the heat exchange effect.

[0021] The plurality of heat exchange plates 7 are arranged at equal intervals, and the heat medium channel 6 is arranged between any two adjacent heat exchange plates 7. The cumulative width of the plurality of heat medium channels 6 is equal to the width of the overall heat medium flow channel, so as to improve the heat exchange capacity. As described above, the heat exchange plates 7 are arranged at the left end part of the inner cavity of the device main body 1 and are used for supporting the heat medium channel 6 arranged therein. Each heat medium channel 6 is provided with a serpentine pipe 10. It should be noted that the heat medium channel 6 is connected with the heat medium inlet 4 and the heat medium outlet 5 in flow.

[0022] Preferably, the interval between any two adjacent heat exchange plates 7 is 60-120 mm, and the thickness of the heat exchange plate 7 is 2.0-4.0 mm.

[0023] The serpentine pipe 10 forms a winding bending structure in the inner cavity of the device main body 1, so as to prolong the flow time of the heat medium medium. The straight pipe structure of the serpentine pipe 10 directly penetrates through the flow guide plate 9. Under the contact of the two, the outer temperature of the serpentine pipe 10 can also be exchanged to the surface of the flow guide plate 9, so as to further enhance the heat exchange effect compared with the traditional heat transfer structure.

[0024] Preferably, the pipe diameter of the serpentine pipe 10 is 50-100mm, and the pipe diameter of the serpentine pipe 10 is determined by the complexity of the medium, and the large pipe diameter of the serpentine pipe 10 is beneficial to improve the passing capacity and prevent the complex medium from being accumulated and blocked.

[0025] The number of the guide plates 9 is multiple, the multiple guide plates 9 are arranged at equal intervals from the left end to the right end in the inner cavity of the device body 1, any two adjacent guide plates 9 are arranged staggeredly, thereby forming a flow channel of the refrigerant medium, so that the refrigerant medium can always flow around the serpentine pipe 10, and the heat exchange effect is strengthened.

[0026] The application discloses a high-flux heat exchanger special for oilfield production plant waste heat recovery, which can set the flow passage section according to actual needs, such as the number of the serpentine pipe 10, has strong self-defined capacity, and has a very wide overall width of the heat medium channel, which is beneficial to reduce the complex medium accumulation and blockage, and improve the efficiency and service life of the heat exchanger.

[0027] The above embodiment is not a limitation on the present application, and the present application is not limited to the above examples, and the changes, modifications, additions or replacements made by the person skilled in the art within the technical scheme of the present application also belong to the protection scope of the present application.

Claims

1. A high-flux heat exchanger for oilfield plant waste heat recovery, comprising a device body (1) with an inner cavity, characterized in that: The right end of the device body (1) is equipped with a refrigerant inlet (2) which communicates with the inner cavity of the device body (1), and the left end of the device body (1) is equipped with a refrigerant outlet (3) which communicates with the inner cavity of the device body (1), the refrigerant inlet (2) to the refrigerant outlet (3) forms a refrigerant channel (8) through the flow guide plate (9) arranged in the inner cavity of the device body (1), the refrigerant outlet (3) is provided with a heat medium inlet (4) on one side, and a heat medium outlet (5) is arranged below the heat medium inlet (4), a plurality of parallel heat exchange plates (7) are arranged in the left end portion of the inner cavity of the device body (1), and a heat medium channel (6) is formed between the heat exchange plates (7), and the produced water channel of the heat medium channel (6) is a serpentine pipe (10) which directly penetrates the flow guide plate (9).

2. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 1, characterized in that: The refrigerant inlet (2) and the refrigerant outlet (3) are diagonally misaligned.

3. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 1, characterized in that: The heat medium inlet (4) is located on the upper side of the free end of the left end of the device body (1) closer to the refrigerant outlet (3), and the heat medium outlet (5) is located on the lower side of the free end of the left end of the device body (1) and directly below the heat medium inlet (4).

4. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 1, characterized in that: A plurality of parallel heat exchange plates (7) are arranged at equal intervals, and a heat medium channel (6) is arranged between any two adjacent heat exchange plates (7), and each heat medium channel (6) is equipped with a serpentine pipe (10).

5. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 4, characterized in that: The distance between any two adjacent heat exchange plates (7) is 60-120mm, and the thickness of the heat exchange plate (7) is 2.0-4.0mm.

6. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 4, characterized in that: The serpentine pipe (10) forms a winding bending structure in the inner cavity of the device body (1), and the straight pipe structure of the serpentine pipe (10) directly penetrates the flow guide plate (9).

7. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 6, characterized in that: The diameter of the serpentine pipe (10) is 50-100mm.

8. The high-flux heat exchanger for oilfield plant waste heat recovery according to claim 6, characterized in that: The number of flow guide plates (9) is multiple, and a plurality of flow guide plates (9) are arranged at equal intervals from the left end to the right end in the inner cavity of the device body (1), and any two adjacent flow guide plates (9) are misaligned with each other.

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