High-pressure-resistant spiral sleeve heat exchanger
By setting up multi-layer spiral sleeves inside the heat exchanger and optimizing the fluid path, the problem of poor heat transfer under high pressure fluid was solved, achieving efficient miniaturization of the heat exchanger and improved energy utilization.
Patent Information
- Application Number
- CN202520316735.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing heat exchangers have poor heat transfer performance in high-pressure fluid environments. The finned heat transfer area is limited and increases flow resistance, making it difficult to meet the heat exchange requirements of high-pressure fluids.
A high-pressure resistant spiral tube heat exchanger is designed by setting multiple layers of heat exchange tubes inside the shell, allowing the fluid to exchange heat inside and outside the tubes respectively, increasing the heat exchange area and optimizing the fluid path to avoid cross-contamination and leakage.
It improves heat exchange efficiency, reduces heat exchanger size and footprint, and increases energy utilization, making it suitable for high-pressure fluid scenarios.
Smart Images
Figure CN223783425U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of casing heat exchanger, and particularly relates to a high-pressure-resistant spiral casing heat exchanger. BACKGROUND
[0002] A heat exchanger can realize heat transfer between two or more than two fluids of different temperatures, and can also be called a heat exchanger. The heat exchanger is widely used in the industrial field and can be used as a heater, a cooler, an evaporator, a condenser, etc. The performance of the heat exchanger plays an important role in measuring product quality, system economy and stability, and energy utilization rate. In the chemical production process, the investment in the heat exchanger accounts for about 30% of the total equipment investment, and in the process of refining petroleum, the investment in the heat exchange equipment accounts for a higher proportion, about 40%; and in the seawater desalination process device, the investment in the heat exchanger accounts for almost the entire position. As an important unit equipment in chemical production, the heat exchanger not only accounts for a large proportion in investment, but also accounts for about 20% or more of the entire process equipment, so the importance of the heat exchanger can be imagined.
[0003] In a carbon dioxide transcritical refrigeration system and a supercritical carbon dioxide compression energy storage system, there is a high-pressure fluid heat exchange process, and the pressure in the heat exchanger will reach more than 10 MPa. Meanwhile, in a shell-and-tube heat exchanger, the pipe box and the fixed tube plate are connected by a flange, and the heat exchanger has low pressure bearing, so a high-pressure-resistant heat exchanger needs to be applied to the heat exchange process.
[0004] At present, the commonly used technology for strengthening the heat transfer of the casing heat exchanger is to install fins outside the pipe, and according to the shape and structure of the fins, there are mainly square fins, spiral fins, petal-shaped fins and spiral sawtooth fins. However, the use of fins can only enhance the single-sided heat transfer outside the heat exchange pipe, and the increase of fins will increase the flow resistance, so the heat exchange area increased by the use of fins is small. UTILITY MODEL CONTENTS
[0005] The utility model discloses a high-pressure-resistant spiral casing heat exchanger and a combination thereof, and aims at solving the problems in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme.
[0007] The utility model provides a high pressure resistant spiral sleeve heat exchanger, including the shell, the both ends of the shell are provided with first fluid inlet and second fluid outlet and first fluid outlet and second fluid inlet respectively, wherein first fluid inlet and first fluid outlet are on the same axis, and the second fluid inlet and the second fluid outlet are diagonally arranged, so that when the heat exchange of two fluids is carried out, the fluid is simultaneously realized through first fluid inlet and second fluid inlet, avoids the time difference between two fluids, thereby effectively guaranteeing the quality and efficiency of heat exchange,
[0008] One end of the first fluid inlet is connected with the heat exchanger inner shunt pipe, one end of the first fluid outlet is connected with the heat exchanger inner manifold pipe, the second fluid inlet and the second fluid outlet are fixedly installed with the shell of the heat exchanger, and the first fluid is shunted from the heat exchanger inner shunt pipe to the heat exchange pipe, and the second fluid is outside the heat exchange pipe, so that when the heat exchange of two fluids is carried out, the heat exchange between the fluid in the pipe and the fluid outside the pipe is realized through the inside and outside of multiple heat exchange pipes,
[0009] As a further technical scheme of the utility model, the shell is internally provided with heat exchange pipes, the heat exchange pipes include first heat exchange pipes, second heat exchange pipes, third heat exchange pipes and fourth heat exchange pipes, the inside of the heat exchange pipes is a pipe, and the outside of the heat exchange pipes is a pipe, multiple heat exchange pipes are used to simultaneously carry out heat exchange treatment on two fluids, the heat exchange area is increased, the heat exchange efficiency is improved, the heat exchanger is miniaturized, and the land occupation is reduced,
[0010] As a further technical scheme of the utility model, the first fluid inlet and the second fluid outlet are connected with the first fluid shunt pipe and the second fluid manifold pipe at the end away from the shell, the first fluid outlet and the second fluid inlet are connected with the first fluid manifold pipe and the second fluid shunt pipe at the end away from the shell, and a gas release valve is further installed on the second fluid manifold pipe, when the pressure in the pipeline is large during the heat exchange process, the pressure is released through the gas release valve installed on the second fluid manifold pipe, and the heat exchange efficiency between the two fluids in the heat exchange pipe is reduced due to excessive pressure.
[0011] As a further technical scheme of the utility model, the first fluid inlet, the first fluid outlet, the second fluid inlet and the second fluid outlet are connected with the same type of pipeline, and the sleeve heat exchanger is fixedly installed on the multiple supports,
[0012] As a further technical scheme of the utility model, the first fluid shunt pipe and the second fluid manifold pipe and the first fluid manifold pipe and the second fluid shunt pipe are respectively located on the two sides of the support,
[0013] As a further technical scheme of the utility model, the first heat exchange pipe, the second heat exchange pipe, the third heat exchange pipe and the fourth heat exchange pipe are in parallel arrangement in the pipe; avoid the cross situation between two fluids and avoid the fluid leakage situation;
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] 1. The utility model can be applied to the scene of high pressure fluid heat exchange, more layers of heat exchange pipes are arranged, the heat exchange area is increased, the heat exchange efficiency is improved, the miniaturization of the heat exchanger is facilitated, and the land occupation is reduced.
[0016] 2. The utility model is characterized in that the first fluid inlet and the second fluid inlet enter different fluids respectively, when the fluids pass through the pipe inside and the pipe outside of the heat exchange pipe, the heat exchange between the two fluids is realized.
[0017] 3. The utility model is characterized in that the fluid entering from the first fluid inlet is converged to the first fluid outlet for discharge through the inner converging pipe of the heat exchanger, the fluid entering from the second fluid inlet is discharged through the second fluid outlet, and the cross situation between the two fluids is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the overall schematic view of the double-pipe heat exchanger of the utility model.
[0019] Figure 2 It is the internal view of the double-pipe heat exchanger of the utility model Figure 1 and the heat exchange pipe schematic view.
[0020] Figure 3 It is the front view of the utility model Figure 1 .
[0021] Figure 4 It is the left view of the utility model Figure 1 .
[0022] In the drawing: 1 - first fluid inlet, 2 - first fluid outlet, 3 - second fluid inlet, 4 - second fluid outlet, 5 - heat exchange pipe, 6 - shell, 7 - inner heat exchanger shunt pipe, 8 - inner heat exchanger converging pipe, 9 - first fluid shunt pipe, 10 - first fluid converging pipe, 11 - second fluid shunt pipe, 12 - second fluid converging pipe, 13 - gas release valve, 14 - support, 51 - first heat exchange pipe, 52 - second heat exchange pipe, 53 - third heat exchange pipe, 54 - fourth heat exchange pipe. DETAILED DESCRIPTION
[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0024] Please refer to Figures 1-4 In the embodiments of the present application, a high-pressure resistant spiral sleeve heat exchanger comprises a shell 6; the two ends of the shell 6 are respectively provided with a first fluid inlet 1 and a second fluid outlet 4 and a first fluid outlet 2 and a second fluid inlet 3; wherein the first fluid inlet 1 and the first fluid outlet 2 are on the same axis, and the second fluid inlet 3 and the second fluid outlet 4 are diagonally arranged;
[0025] One end of the first fluid inlet 1 is connected with a heat exchanger inner shunt pipe 7, and one end of the first fluid outlet 2 is connected with a heat exchanger inner bus pipe 8; the second fluid inlet 3 and the second fluid outlet 4 are fixedly installed with the shell 6 of the heat exchanger; the heat exchanger inner shunt pipe 7 and the heat exchanger inner bus pipe 8 are cooperatively installed at the two ends of a heat exchange pipe 5;
[0026] The shell 6 is internally provided with the heat exchange pipe 5; the heat exchange pipe 5 comprises a first heat exchange pipe 51, a second heat exchange pipe 52, a third heat exchange pipe 53 and a fourth heat exchange pipe 54; wherein the inside of the plurality of heat exchange pipes is a pipe inside, and the outside of the plurality of heat exchange pipes is a pipe outside.
[0027] By adopting the above technical solution, it can be applied to the scene of high-pressure fluid heat exchange; by arranging more layers of heat exchange pipes, the heat exchange area is increased, which is conducive to improving the heat exchange efficiency and is conducive to the miniaturization of the heat exchanger and reducing the land occupation.
[0028] In the embodiments, the first fluid inlet 1 and the second fluid outlet 4 are connected with a first fluid shunt pipe 9 and a second fluid bus pipe 12 at the end away from the shell 6; the first fluid outlet 2 and the second fluid inlet 3 are connected with a first fluid bus pipe 10 and a second fluid shunt pipe 11 at the end away from the shell 6; the second fluid bus pipe 12 is further provided with a gas release valve 13;
[0029] The first fluid inlet 1, the first fluid outlet 2, the second fluid inlet 3 and the second fluid outlet 4 are connected by the same type of pipeline, and the sleeve heat exchanger is fixedly installed on a plurality of supports 14;
[0030] By adopting the above technical solution, the first fluid inlet and the second fluid inlet enter different fluids respectively, and when the fluids pass through the pipe inside and the pipe outside of the heat exchange pipe, the heat in the two fluids is exchanged;
[0031] Further, the first fluid distribution pipe 9 and the second fluid distribution pipe 12 are respectively located on two sides of the support 14 with the first fluid collection pipe 10 and the second fluid collection pipe 11;
[0032] In the embodiment, the first heat exchange pipe 51, the second heat exchange pipe 52, the third heat exchange pipe 53 and the fourth heat exchange pipe 54 are arranged in parallel in the pipes;
[0033] By using the above technical scheme, the fluid entering from the first fluid inlet is collected by the collection pipe in the heat exchanger and discharged from the first fluid outlet, and the fluid entering from the second fluid inlet is discharged from the second fluid outlet, so that the cross between the two fluids and the leakage between the fluids are effectively avoided.
[0034] The working principle of the utility model is: the first fluid enters from the first fluid inlet 1, is distributed by the distribution pipe 7 in the heat exchanger and enters the first heat exchange pipe 51, the second heat exchange pipe 52, the third heat exchange pipe 53 and the fourth heat exchange pipe 54 respectively, exchanges heat with the second fluid outside the pipe in the heat exchange pipe 5, is collected by the collection pipe 8 in the heat exchanger and reaches the first fluid outlet 2;
[0035] The second fluid enters from the second fluid inlet 3, flows outside the first heat exchange pipe 51, the second heat exchange pipe 52, the third heat exchange pipe 53 and the fourth heat exchange pipe 54, exchanges heat with the first fluid inside the pipe outside the heat exchange pipe 5 and finally flows to the second fluid outlet 4.
[0036] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.
Claims
1. A high pressure resistant spiral can heat exchanger, characterized by: The utility model provides a kind of heat exchanger, including shell (6);The both ends of the shell (6) are provided with first fluid inlet (1) and second fluid outlet (4) respectively and first fluid outlet (2) and second fluid inlet (3);Wherein first fluid inlet (1) and first fluid outlet (2) are on the same axis, and the second fluid inlet (3) and the second fluid outlet (4) are diagonally arranged. One end of the first fluid inlet (1) is connected with the inner shunt pipe (7) of heat exchanger, and one end of the first fluid outlet (2) is connected with the inner collecting pipe (8) of heat exchanger;The second fluid inlet (3) and the second fluid outlet (4) are fixedly installed with the shell (6) of heat exchanger;The inner shunt pipe (7) of heat exchanger and the inner collecting pipe (8) of heat exchanger are cooperatively installed at both ends of heat exchange pipe (5).
2. A high pressure resistant spiral can heat exchanger according to claim 1, characterized in that: The shell (6) is provided with heat exchange pipe (5) inside;The heat exchange pipe (5) includes first heat exchange pipe (51), second heat exchange pipe (52), third heat exchange pipe (53) and fourth heat exchange pipe (54);Wherein the inside of heat exchange pipe is pipe, and the outside of heat exchange pipe is pipe.
3. A high pressure resistant spiral can heat exchanger according to claim 1, characterized in that: One end of the first fluid inlet (1) and the second fluid outlet (4) away from the shell (6) is connected with first fluid shunt pipe (9) and second fluid collecting pipe (12) respectively;One end of the first fluid outlet (2) and the second fluid inlet (3) away from the shell (6) is connected with first fluid collecting pipe (10) and second fluid shunt pipe (11) respectively;The second fluid collecting pipe (12) is further provided with a gas valve (13).
4. A high pressure resistant spiral can heat exchanger according to claim 3, characterized in that: The first fluid inlet (1), the first fluid outlet (2), the second fluid inlet (3) and the second fluid outlet (4) are connected by the same type of pipeline, and the shell (6) is fixedly installed on a plurality of supports (14).
5. A high pressure resistant spiral can heat exchanger according to claim 3, characterized in that: The first fluid shunt pipe (9) and the second fluid collecting pipe (12) are located on the two sides of the support (14) respectively.
6. A high pressure resistant spiral can heat exchanger according to claim 2, characterized in that: The first heat exchange pipe (51), the second heat exchange pipe (52), the third heat exchange pipe (53) and the fourth heat exchange pipe (54) are connected in parallel.