Novel coil heat exchanger

Abstract

The utility model discloses a novel coil heat exchanger, which relates to the technical field of industrial refrigeration and heating, and aims to solve the problems of high energy consumption of electric heating, secondary cooling required by refrigerant refrigeration and poor overall heat exchange efficiency in the traditional mode, and adopts the technical scheme that the novel coil heat exchanger comprises a barrel, a second fluid port is arranged at one end of the barrel, and a second fluid port is arranged at the other end of the barrel; a first fluid port is formed in one end of the side surface of the barrel, an end cover is installed at one end of the barrel, two installation holes are formed in the end face of the end cover, an inner coil pipe and an outer coil pipe are fixedly connected to the interiors of the two installation holes respectively, the inner coil pipe and the outer coil pipe are both in a spiral shape, and the inner coil pipe and the outer coil pipe are arranged in the barrel. One end of the inner coil pipe is communicated with one end of the outer coil pipe, the inner coil pipe is sleeved with the outer coil pipe, and the inner coil pipe and the outer coil pipe are both arranged in the cylinder body. The effects of improving the anti-corrosion performance and the heat exchange efficiency in the heat exchange process and reducing the heat exchange loss and the heat exchange cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial refrigeration and heating, in particular to a novel coil heat exchanger. Background Art

[0002] Currently, in the field of industrial refrigeration, the common practice for heating corrosive liquids is to directly heat the liquid using electric heating as an auxiliary heating method. However, this approach is plagued by corrosion issues with the electric heating tubes and high heating energy consumption. To cool corrosive liquids, the common approach is to perform secondary heat exchange with the liquid after it has been cooled by a refrigerator, thereby reducing the temperature of the corrosive liquid. However, this approach reduces the efficiency of the secondary heat exchange and places high demands on the corrosion resistance of the secondary heat exchanger, as well as increasing the required heat exchange area. Common problems with both methods are poor corrosion resistance, low heat exchange efficiency, and high energy consumption.

[0003] In order to solve the above problems, a new type of coil heat exchanger is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a novel coil heat exchanger which can improve the anti-corrosion performance and heat exchange efficiency of the heat exchange process, and reduce the heat exchange loss and heat exchange cost.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new type of coil heat exchanger includes a cylinder, one end of which is provided with a second fluid port, one end of the side surface of the cylinder is provided with a first fluid port, one end of the cylinder is installed with an end cover, two mounting holes are provided on the end surface of the end cover, and the insides of the two mounting holes are respectively fixedly connected with an inner coil and an outer coil, the inner coil and the outer coil are both spiral-shaped, one end of the inner coil is connected to one end of the outer coil, the outer coil is sleeved on the outside of the inner coil, and the inner coil and the outer coil are both placed inside the cylinder.

[0007] By adopting the above technical solution, the traditional electric heating or refrigerant secondary cooling operation is replaced, the heat exchange efficiency is improved, and the anti-corrosion performance is improved.

[0008] Furthermore, a guide inner tube is inserted inside the inner coil, one end of the guide inner tube is fixedly connected to a connecting block, a plurality of internal fixing clips are mounted on the inner side of the inner coil, and a plurality of external fixing clips are mounted on the outside of the outer coil, and one end of each of the external fixing clips and the internal fixing clips is fixedly connected to the end face of the connecting block.

[0009] By adopting the above technical solution, the corrosive liquid passing through the interior can be effectively diverted, thereby improving the contact rate between the corrosive liquid and the inner coil and the outer coil.

[0010] Furthermore, a fixing sleeve is fixedly connected to the edge of the connecting block at one end of the guide inner cylinder, and a plurality of through holes are provided on the end surface of the connecting block.

[0011] By adopting the above technical solution, the position stability of the inner coil and the outer coil inside the cylinder is ensured.

[0012] Furthermore, two mounting holes are provided on the side surface of the cylinder, and corrosion-resistant temperature sensors are fixedly installed inside the mounting holes. The two corrosion-resistant temperature sensors are respectively located at the first fluid port and the second fluid port.

[0013] By adopting the above technical solution, two corrosion-resistant temperature sensors can be used to detect the heat exchange rate of corrosive liquids, providing accurate production data for the entire production.

[0014] Furthermore, a heat-insulating cover is fixedly sleeved on the outside of the cylinder, a cavity between the heat-insulating cover and the cylinder is filled with heat-insulating gas, and a gas nozzle is fixedly connected to the side surface of the heat-insulating cover.

[0015] By adopting the above technical solution, the heat-insulating gas can be used to reduce the influence of the external ambient temperature on the heat exchanger.

[0016] Furthermore, a plurality of inner support blocks are fixedly connected to the inner wall of the heat-insulating cover, and through holes are provided on the outer surfaces of the inner support blocks.

[0017] By adopting the above technical solution, the structural stability of the thermal insulation cover can be effectively improved.

[0018] In summary, the beneficial technical effects of the present invention are:

[0019] When the utility model is in use, the corrosive liquid to be heat exchanged is introduced into the interior of the cylinder from the first fluid port, and the corrosive liquid flows out from the second fluid port after passing through the cylinder. In this process, the refrigerant or heat medium is introduced into the interior of the outer coil from the port of the outer coil. Since the outer coil is connected to the inner coil, the refrigerant or heat medium flows into the interior of the inner coil after passing through the interior of the outer coil, and finally flows out from one end of the inner coil. At this time, the refrigerant or heat medium flowing in the inner coil and the outer coil can realize heat exchange operation with the corrosive liquid. Since the inner coil and the outer coil are both spiral, the heat exchange time between the corrosive liquid and the refrigerant or heat medium can be effectively improved. Compared with the traditional method, the heating of the corrosive liquid is generally done by auxiliary heating with electric heating. The problem with directly heating the corrosive liquid is the corrosion of the electric heating tube and the high energy consumption of heating. As for the cooling of the corrosive liquid, the common practice is to perform secondary heat exchange on the liquid after cooling by the refrigerator to reduce the temperature of the corrosive liquid. The problem with this approach is that the secondary heat exchange efficiency is reduced, and the corrosion resistance of the secondary heat exchanger is high, and the heat exchange area requirement is increased. The new heat exchanger can effectively avoid the above problems and prevent the built-in electric heating components from being corroded by corrosive liquids. The new heat exchanger improves the corrosion resistance of the heat exchange process, improves the heat exchange efficiency, reduces the heat exchange loss, and thus reduces the heat exchange cost. At the same time, it has a simple structure, low cost, and is easy to mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first perspective view of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a second perspective view of the three-dimensional structure of the present utility model;

[0022] Figure 3 This is the internal structure diagram of the utility model.

[0023] In the figure: 1. Cylinder; 2. First fluid port; 3. Second fluid port; 4. Fixed sleeve; 5. Inner coil; 6. Outer coil; 7. End cover; 8. External fixing clamp; 9. Inner guide cylinder; 10. Corrosion-resistant temperature sensor; 11. Gas nozzle; 12. Inner support block; 13. Insulation cover. DETAILED DESCRIPTION

[0024] The method of the utility model is further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 、 Figure 2 、 Figure 3A new type of coil heat exchanger includes a cylinder 1, one end of the cylinder 1 is provided with a second fluid port 3, one end of the side surface of the cylinder 1 is provided with a first fluid port 2, one end of the cylinder 1 is installed with an end cover 7, the end surface of the end cover 7 is provided with two mounting holes, and the insides of the two mounting holes are respectively fixedly connected with an inner coil 5 and an outer coil 6, the inner coil 5 and the outer coil 6 are both spiral-shaped, one end of the inner coil 5 is connected to one end of the outer coil 6, the outer coil 6 is sleeved on the outside of the inner coil 5, and the inner coil 5 and the outer coil 6 are Placed inside the cylinder 1, when in use, the corrosive liquid to be heat exchanged is introduced into the interior of the cylinder 1 from the first fluid port 2, and the corrosive liquid flows out from the second fluid port 3 after passing through the cylinder 1. In this process, the refrigerant or heat medium is introduced into the interior of the outer coil 6 from the port of the outer coil 6. Since the outer coil 6 is connected to the inner coil 5, the refrigerant or heat medium flows into the interior of the inner coil 5 after passing through the interior of the outer coil 6, and finally flows out from one end of the inner coil 5. At this time, the refrigerant flowing in the inner coil 5 and the outer coil 6 Or the heat medium can realize heat exchange operation with the corrosive liquid. Since the inner coil 5 and the outer coil 6 are both spiral, the heat exchange time between the corrosive liquid and the refrigerant or heat medium can be effectively improved. Compared with the traditional method, the heating of the corrosive liquid is generally done by directly heating the corrosive liquid through electric heating auxiliary heating. The problem with this method is the corrosion problem of the electric heating tube and the high heating energy consumption. As for the cooling problem of the corrosive liquid, the general method is to perform secondary heat exchange on the liquid through the liquid cooled by the refrigerator, thereby reducing the temperature of the corrosive liquid. The problem with this method is that the secondary heat exchange efficiency is reduced, and the corrosion resistance of the secondary heat exchanger is high, and the heat exchange area requirement is increased. The new heat exchanger can effectively avoid the above problems and avoid the corrosion of the built-in electric heating components by the corrosive liquid. The new heat exchanger improves the corrosion resistance of the heat exchange process, improves the heat exchange efficiency, reduces the heat exchange loss, and thus reduces the heat exchange cost. At the same time, it has a simple structure, low cost, and is easy to mass produce.

[0026] Reference Figure 1 3 , a guide inner tube 9 is inserted inside the inner coil 5, and one end of the guide inner tube 9 is fixedly connected to a connecting block, a plurality of internal fixing clips are mounted on the inner side of the inner coil 5, and a plurality of external fixing clips 8 are mounted on the outside of the outer coil 6, and one end of the external fixing clips 8 and the internal fixing clips are fixedly connected to the end face of the connecting block, a fixing sleeve 4 is fixedly connected to the edge of the connecting block at one end of the guide inner tube 9, and a plurality of through holes are provided on the end face of the connecting block, wherein the guide inner tube 9 can guide the corrosive liquid passing through the inside of the cylinder 1, and at the same time the guide inner tube 9 can partially fill the space inside the inner coil 5, so that the corrosive liquid can fully contact with the inner coil 5 and the outer coil 6, thereby improving the heat exchange efficiency, and at the same time the external fixing clips 8, the internal fixing clips and the fixing sleeve 4 can ensure the positional stability of the inner coil 5 and the outer coil 6 inside the cylinder 1.

[0027] Reference Figure 1 Two mounting holes are provided on the side surface of the cylinder 1, and a corrosion-resistant temperature sensor 10 (PT100) is fixedly installed inside the mounting hole. The two corrosion-resistant temperature sensors 10 are respectively located at the first fluid port 2 and the second fluid port 3. The two corrosion-resistant temperature sensors 10 can be electrically connected to an external temperature difference digital display device. The two corrosion-resistant temperature sensors 10 are used to respectively detect the corrosive liquid temperature at the first fluid port 2 and the second fluid port 3, which can effectively calculate the heat exchange rate of the heat exchanger and provide production data for the overall production.

[0028] Referring to Figure 3, a heat-insulating cover 13 is fixedly sleeved on the outside of the cylinder 1, and the cavity between the heat-insulating cover 13 and the cylinder 1 is filled with heat-insulating gas. A gas nozzle 11 is fixedly connected to the side surface of the heat-insulating cover 13, and a plurality of inner support blocks 12 are fixedly connected to the inner wall of the heat-insulating cover 13. Through holes are provided on the outer surface of the inner support blocks 12. The heat-insulating gas inside the heat-insulating cover 13 can be used to improve the heat-insulating performance of the outside of the cylinder 1, thereby preventing the inside of the cylinder 1 from being affected by the external ambient temperature.

[0029] Working principle: When in use, first install the heat exchanger at the designated position, then connect the delivery pipeline of the corrosive liquid and the supply pipeline of the refrigerant or heat medium, then introduce the corrosive liquid to be exchanged into the interior of the cylinder 1 from the first fluid port 2, and the corrosive liquid passes through the cylinder 1 and flows out from the second fluid port 3, or flows into the first fluid port 2 from the second fluid port 3 and flows out. In this process, the refrigerant or heat medium is introduced into the interior of the outer coil 6 from the port of the outer coil 6. Since the outer coil 6 is connected to the inner coil 5, the refrigerant or heat medium flows into the interior of the inner coil 5 after passing through the interior of the outer coil 6, and finally flows out from one end of the inner coil 5. At this time, the refrigerant or heat medium flowing in the inner coil 5 and the outer coil 6 can achieve Heat exchange operation, since the inner coil 5 and the outer coil 6 are both spiral, the heat exchange time between the corrosive liquid and the refrigerant or heat medium can be effectively improved. At the same time, the guide inner tube 9 can guide the corrosive liquid passing through the inside of the cylinder 1, so that the corrosive liquid can fully contact with the inner coil 5 and the outer coil 6, thereby improving the heat exchange efficiency. During the entire heat exchange process, the insulating gas inside the insulation cover 13 can be used to improve the insulation performance of the outside of the cylinder 1, avoiding the inside of the cylinder 1 from being affected by the external ambient temperature, and using two corrosion-resistant temperature sensors 10 to respectively detect the corrosive liquid temperature at the first fluid port 2 and the second fluid port 3, the heat exchange rate of the heat exchanger can be effectively calculated, providing production data for the overall production.

[0030] The real-time examples of this specific real-time method are all preferred real-time examples of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A novel coil heat exchanger, comprising a cylinder (1), characterized in that: One end of the cylinder (1) is provided with a second fluid port (3), one end of the side surface of the cylinder (1) is provided with a first fluid port (2), one end of the cylinder (1) is installed with an end cover (7), two mounting holes are provided on the end surface of the end cover (7), and the insides of the two mounting holes are respectively fixedly connected with an inner coil (5) and an outer coil (6), the inner coil (5) and the outer coil (6) are both spiral-shaped, one end of the inner coil (5) is connected to one end of the outer coil (6), the outer coil (6) is sleeved on the outside of the inner coil (5), and the inner coil (5) and the outer coil (6) are both placed inside the cylinder (1).

2. The novel coil heat exchanger according to claim 1, characterized in that: A flow guiding inner tube (9) is inserted into the interior of the inner coil (5), one end of the flow guiding inner tube (9) is fixedly connected to a connecting block, a plurality of inner fixing clips are mounted on the inner side of the inner coil (5), and a plurality of outer fixing clips (8) are mounted on the outer side of the outer coil (6), and one end of each of the outer fixing clips (8) and the inner fixing clips is fixedly connected to the end face of the connecting block.

3. The novel coil heat exchanger according to claim 2, characterized in that: A fixed sleeve (4) is fixedly connected to the edge of the connection block at one end of the guide inner cylinder (9), and a plurality of through holes are provided on the end surface of the connection block.

4. The novel coil heat exchanger according to claim 1, characterized in that: Two mounting holes are provided on the side surface of the cylinder (1), and corrosion-resistant temperature sensors (10) are fixedly installed inside the mounting holes. The two corrosion-resistant temperature sensors (10) are respectively located at the first fluid port (2) and the second fluid port (3).

5. The novel coil heat exchanger according to claim 1, characterized in that: A heat-insulating cover (13) is sleeved and fixed on the outside of the cylinder (1), a cavity between the heat-insulating cover (13) and the cylinder (1) is filled with heat-insulating gas, and a gas nozzle (11) is fixedly connected to the side surface of the heat-insulating cover (13).

6. The novel coil heat exchanger according to claim 5, characterized in that: A plurality of inner support blocks (12) are fixedly connected to the inner wall of the heat-insulating cover (13), and through holes are provided on the outer surfaces of the inner support blocks (12).

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