Heat exchanger for chemical equipment

Abstract

The utility model relates to a heat exchanger for chemical equipment, which comprises a horizontal shell, a heat exchange capillary tube group, a feeding shell cover and a discharging shell cover, and is technically characterized in that a defoaming transition pipeline is connected between the feeding shell cover and the front end of the horizontal shell, and a gas overflow cavity is arranged on the top surface of the defoaming transition pipeline; the top face of the gas overflow cavity is higher than the top face of the horizontal shell and connected with the vacuumizing pipeline, an inclined filter plate is arranged in the defoaming transition pipeline and divides the defoaming transition pipeline into a front cavity and a rear cavity, the front cavity is communicated with the feeding shell cover, and the rear cavity is communicated with the gas overflow cavity and the heat exchange capillary tube set. A plurality of ultrasonic transmitting heads are respectively arranged on the bottom surface and the side surface of the front cavity; and each ultrasonic transmitting head is connected with an ultrasonic generator on the outer side of the defoaming transition pipeline. According to the utility model, the defect that liquid is unfavorable for flowing due to bubbles is fundamentally overcome, and the safe and stable operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical equipment, specifically relates to a heat exchanger for chemical equipment. BACKGROUND

[0002] In the chemical production process, each raw material usually needs to go through a series of chemical processes such as pretreatment, chemical reaction, separation and refining, and in this process, many reactions need to use heat exchangers to heat the chemical materials to meet the temperature requirements.

[0003] CN 220366726 U discloses a heat exchanger for chemical equipment, which includes a shell, a feed shell cover is arranged at the left end of the shell, a discharge shell cover is arranged at the right end of the shell, and a heat exchange capillary tube is arranged between the left and right side panels of the shell and communicates with the feed shell cover and the discharge shell cover. An installation clamping groove is arranged at the feed pipe, an installation ring is arranged in the installation clamping groove, a connecting cylinder extending downward into the feed shell cover is arranged on the installation ring, and a conical hollow cylinder extending to the bottom of the feed shell cover is arranged at the bottom of the connecting cylinder. The conical hollow cylinder is a conical cylinder structure with hollow surface, and an opening is arranged at the bottom of the conical hollow cylinder. When the liquid enters the conical hollow cylinder, it flows along the cylinder wall of the conical hollow cylinder and flows out from the holes in the cylinder wall and the bottom opening of the conical hollow cylinder, reducing the generation of bubbles and effectively alleviating the problem of poor liquid flow caused by bubbles entering the heat exchange capillary tube. However, there are still the following problems: bubbles are blocked above the stainless steel filter plate and inside the conical hollow cylinder, gas is not discharged, and liquid flow is not smooth, especially for viscous liquid. SUMMARY

[0004] The utility model aims at providing a heat exchanger for chemical equipment with reasonable structure and reliable use to solve the above problems, which fundamentally overcomes the defect that liquid flow is not smooth due to the existence of bubbles and ensures the safe and stable operation of the equipment.

[0005] The technical scheme of the utility model is:

[0006] A heat exchanger for chemical equipment includes a horizontal shell, a heat exchange capillary tube assembly disposed within the horizontal shell, a feed cover located at the front of the horizontal shell and communicating with the heat exchange capillary tube assembly, and a discharge cover connected to the rear end of the horizontal shell and communicating with the heat exchange capillary tube assembly. The key technical features are: a defoaming transition pipe is connected between the feed cover and the front end of the horizontal shell; a gas overflow chamber is provided on the top surface of the defoaming transition pipe; the top surface of the gas overflow chamber is higher than the top surface of the horizontal shell and connected to a vacuum pipe; an inclined filter plate is provided in the defoaming transition pipe, dividing the defoaming transition pipe into a front chamber and a rear chamber; the front chamber communicates with the feed cover; the rear chamber communicates with the gas overflow chamber and the heat exchange capillary tube assembly; multiple ultrasonic transmitters are arranged on the bottom and sides of the front chamber, and each ultrasonic transmitter is connected to an ultrasonic generator outside the defoaming transition pipe.

[0007] In the aforementioned heat exchanger for chemical equipment, the front end of the defoaming transition pipeline is provided with a front flange corresponding to the feed shell cover, and the rear end is provided with a rear flange corresponding to the horizontal shell. A front sealing ring is provided between the front flange and the connecting flange of the feed shell cover, and a rear sealing ring is provided between the rear flange and the connecting flange at the front end of the horizontal shell.

[0008] The heat exchanger for the aforementioned chemical equipment has multiple longitudinal through holes on its inclined filter plate.

[0009] The beneficial effects of this utility model are:

[0010] 1. During use, the liquid entering the front chamber of the defoaming transition pipe is intercepted by the inclined filter plate. The bubbles generated at the inclined filter plate are pushed towards the top of the liquid surface by the ultrasonic waves emitted by the ultrasonic transmitter, overflowing and entering the gas overflow chamber. They are then pumped out by the vacuum pipe, ensuring smooth liquid flow without affecting the subsequent liquid entry. This invention fundamentally overcomes the defect of liquid flow being hindered by the presence of bubbles, guaranteeing the safe and stable operation of the equipment.

[0011] 2. This utility model can be formed by adding a defoaming transition pipeline and its internal components on the basis of the existing structure, which is convenient for modification and has strong practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The present invention will be described in detail with reference to the accompanying drawings.

[0014] like Figure 1As shown, the heat exchanger for chemical equipment comprises a horizontal shell 12, a heat exchange capillary group 11 arranged in the horizontal shell 12, a feed shell cover 1 arranged at the front side of the horizontal shell 12 and communicated with the heat exchange capillary group 11, and a discharge shell cover 13 connected with the rear end of the horizontal shell 12 and communicated with the heat exchange capillary group 11.

[0015] The front end of the defoaming transition pipeline is provided with a front flange 3 corresponding to the feed shell cover 1, and the rear end is provided with a rear flange 7 corresponding to the horizontal shell 12.

[0016] The defoaming transition pipeline is provided with an inclined filter plate 6, and a plurality of longitudinal through holes are arranged on the inclined filter plate 6. The inclined filter plate 6 divides the defoaming transition pipeline into a front cavity and a rear cavity. The front cavity is communicated with the feed shell cover 1, and the rear cavity is communicated with the gas overflow cavity 4 and the heat exchange capillary group 11. The bottom surface and the side surface of the front cavity are respectively arranged with a plurality of ultrasonic wave emitting heads 10, and each ultrasonic wave emitting head 10 is connected with an ultrasonic wave generator 9 outside the defoaming transition pipeline.

[0017] In the embodiment, the front end of the defoaming transition pipeline is provided with a front flange 3 corresponding to the feed shell cover 1, and the rear end is provided with a rear flange 7 corresponding to the horizontal shell 12. The front flange 3 is provided with a front sealing ring 2 between the connecting flange of the feed shell cover 1, and the rear flange 7 is provided with a rear sealing ring 8 between the connecting flange of the front end of the horizontal shell 12.

[0018] Working principle:

[0019] The ultrasonic wave generator 9 and the ultrasonic wave emitting head 10 emit ultrasonic waves into the defoaming transition pipeline. The liquid enters the front cavity of the defoaming transition pipeline through the feed shell cover 1. In the walking process, the liquid is affected by the ultrasonic waves, and the bubbles generated at the inclined filter plate 6 are quickly discharged to the top of the liquid surface and overflow the top of the liquid surface, enter the gas overflow cavity 4, and are then pumped out by the vacuum pipeline 5, so as to ensure smooth flow of the liquid.

[0020] The above embodiment of the present application is described in detail, but the content is only a preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the present patent.

Claims

1. A heat exchanger for chemical equipment, comprising a horizontal shell, a heat exchange capillary tube assembly disposed within the horizontal shell, a feed cover located at the front of the horizontal shell and communicating with the heat exchange capillary tube assembly, and a discharge cover connected to the rear end of the horizontal shell and communicating with the heat exchange capillary tube assembly, characterized in that: A defoaming transition pipe is connected between the feed shell cover and the front end of the horizontal shell. The top surface of the defoaming transition pipe is provided with a gas overflow chamber. The top surface of the gas overflow chamber is higher than the top surface of the horizontal shell and is connected to a vacuum pipe. An inclined filter plate is provided in the defoaming transition pipe, which divides the defoaming transition pipe into a front chamber and a rear chamber. The front chamber is connected to the feed shell cover, and the rear chamber is connected to the gas overflow chamber and the heat exchange capillary tube group. Multiple ultrasonic transmitters are arranged on the bottom and sides of the front chamber, and each ultrasonic transmitter is connected to an ultrasonic generator on the outside of the defoaming transition pipe.

2. The heat exchanger for chemical equipment according to claim 1, characterized in that: The defoaming transition pipeline has a front flange corresponding to the feed shell cover at the front end and a rear flange corresponding to the horizontal shell at the rear end. A front sealing ring is provided between the front flange and the connecting flange of the feed shell cover, and a rear sealing ring is provided between the rear flange and the connecting flange of the front end of the horizontal shell.

3. The heat exchanger for chemical equipment according to claim 1, characterized in that: The inclined filter plate has multiple longitudinal through holes.

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