Efficient heat exchanger for compressed air energy storage system

Abstract

The utility model relates to the technical field of heat exchangers, in particular to an efficient heat exchanger for a compressed air energy storage system. The water inlet is connected with a water inlet heat exchange pipe; the water inlet heat exchange pipe is of an S-shaped structure. An air inlet heat exchange pipe is arranged in the water inlet heat exchange pipe; the air inlet heat exchange pipe is of an S-shaped structure. One end of the air inlet heat exchange pipe is connected with a compressed air inlet; a compressed air inlet flange is arranged at the top of the compressed air inlet; a water outlet is formed in the tail end of the water inlet heat exchange pipe; a water outlet flange is arranged on the water outlet; a compressed air exhaust port is formed in the tail end of the air inlet heat exchange pipe; a compressed air exhaust port flange is arranged on the compressed air exhaust port; a heat exchange cavity A, a heat exchange cavity B and a heat exchange cavity C are formed between the water inlet heat exchange pipe and the air inlet heat exchange pipe respectively. The problems that a traditional heat exchanger is low in heat exchange rate and long in heat exchange time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to a high-efficiency heat exchanger for a compressed air energy storage system. Background Art

[0002] In recent years, the development and utilization of clean energy has become an important issue worldwide. At the same time, energy storage technology has received increasing attention in order to balance energy supply and demand and improve energy utilization efficiency. Among them, compressed air energy storage, as a potential energy storage method, has broad application prospects. Compressed air energy storage is an important energy storage technology that can convert mechanical energy into compressed air for storage and release energy when needed. In compressed air energy storage systems, high-efficiency heat exchangers play a vital role. They can achieve efficient cooling of compressed air and recovery of heat energy, thereby improving the energy conversion efficiency and operational stability of the system. A large amount of heat will be generated during the air compression process. In order to improve the system's

[0003] Energy conversion efficiency requires high-efficiency heat exchangers to achieve heat recovery and utilization.

[0004] Currently, most of the heat exchangers in compressed air energy storage systems are corrugated plate heat exchangers and tube heat exchangers.

[0005] The internal heat exchange structure of the corrugated plate heat exchanger is a simple corrugated plate, which is easy to form a flow dead zone in the depression. The relatively static fluid reduces the heat exchange effect of the heat exchanger. The heat exchange area of ​​the tubular heat exchanger is small, and the flow is mostly stable laminar flow. There is no mass transfer process inside the fluid, which is not conducive to enhancing the heat exchange effect. Although simple fins can enhance the heat exchange area, they will also block the flow of the fluid, forming a flow dead zone while greatly increasing the flow resistance and increasing the operating cost of the heat exchanger. Traditional tubular heat exchangers are mostly sleeve structures. The fluid remains in the inner tube or outer tube. The flow state is relatively single and the heat exchange efficiency is relatively low; refer to CN202322727598.1 A modular spliced ​​heat exchanger. Utility Model Content

[0006] The utility model aims to provide a high-efficiency heat exchanger for a compressed air energy storage system, so as to solve the problems of low heat exchange rate and long heat exchange time of traditional heat exchangers.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A high-efficiency heat exchanger for a compressed air energy storage system, comprising a water inlet flange, a water inlet, a compressed air inlet flange, a compressed air inlet, a water inlet heat exchange pipe, an air inlet heat exchange pipe, a heat exchange chamber A, a heat exchange chamber B, and a heat exchange chamber C; a water inlet flange is provided on the water inlet; the water inlet is connected to the water inlet heat exchange pipe; the water inlet heat exchange pipe is arranged in an S-shaped structure; an air inlet heat exchange pipe is arranged in the water inlet heat exchange pipe; the air inlet heat exchange pipe is arranged in an S-shaped structure; one end of the air inlet heat exchange pipe is connected to the compressed air inlet; a compressed air inlet flange is provided on the top of the compressed air inlet; a drain port is provided at the end of the water inlet heat exchange pipe; a drain port flange is provided on the drain port; a compressed air exhaust port is provided at the end of the air inlet heat exchange pipe; a compressed air exhaust port is provided on the compressed air exhaust port

[0009] Gas and exhaust port flanges; heat exchange chamber A, heat exchange chamber B and heat exchange chamber C are respectively arranged between the water inlet heat exchange tube and the air inlet heat exchange tube.

[0010] Furthermore, a plurality of vortex generators are arranged in the intake heat exchange tube; the vortex generators are connected and arranged inside the intake heat exchange tube via a support frame.

[0011] Furthermore, the inner wall surfaces of the heat exchange chamber A, the heat exchange chamber B, and the heat exchange chamber C are provided with corrugated plates.

[0012] Furthermore, a plurality of groups of guide plates are arranged on the corrugated plate.

[0013] Furthermore, a plurality of groups of mesh fin plates are arranged on the corrugated plate.

[0014] Furthermore, the guide plate is arranged at the crest of the corrugated plate.

[0015] Furthermore, the mesh fin plate is arranged at the trough of the corrugated plate.

[0016] Compared with the prior art, the utility model can achieve one of the following beneficial effects:

[0017] 1. A water inlet flange is provided on the water inlet; the water inlet is connected to the water inlet heat exchange pipe; the water inlet heat exchange pipe is an S-shaped structure; an air inlet heat exchange pipe is provided inside the water inlet heat exchange pipe; the air inlet heat exchange pipe is an S-shaped structure; one end of the air inlet heat exchange pipe is connected to the compressed air inlet; a compressed air inlet flange is provided on the top of the compressed air inlet; a drain port is provided at the end of the water inlet heat exchange pipe; a drain port flange is provided on the drain port; a compressed air exhaust port is provided at the end of the air inlet heat exchange pipe; a compressed air exhaust port flange is provided on the compressed air exhaust port; a heat exchange cavity A, a heat exchange cavity B and a heat exchange cavity C are provided between the water inlet heat exchange pipe and the air inlet heat exchange pipe, respectively, so that the water inlet heat exchange pipe can be provided by the S-shaped structure, and the air inlet heat exchange pipe is provided by wrapping the water inlet heat exchange pipe, which increases the heat exchange contact area to the greatest extent, improves the heat exchange efficiency, and shortens the heat exchange time while ensuring the heat exchange efficiency. Improve the heat exchange efficiency.

[0018] 2. A plurality of vortex generators are arranged in the intake heat exchange tube; the vortex generators are connected to the inside of the intake heat exchange tube through a support frame, so that the air flow rate can be reduced through the vortex generators, and the vortex is generated to increase the gas contact area in the intake heat exchange tube, thereby maximizing the use of air energy.

[0019] 3. The inner wall surfaces of the heat exchange chambers A, B and C are provided with corrugated plates, which can increase the contact area between water flow and air and improve the heat exchange efficiency.

[0020] 4. A plurality of guide plates are arranged on the corrugated plate, which can guide the water flow into the trough of the corrugated plate through the guide plates, so that the water flows as close to the surface of the corrugated plate as possible, thereby improving the heat exchange efficiency.

[0021] 5. A plurality of groups of mesh fin plates are arranged on the corrugated plate, so that the heat exchange efficiency can be improved by utilizing the larger surface area of ​​the mesh fin plates.

[0022] 6. The guide plate is arranged at the crest of the corrugated plate, which can ensure the flow rate in the corrugated plate and ensure fluidity while performing heat exchange.

[0023] 7. The mesh fin plate is arranged at the trough of the corrugated plate, which can further reduce the flow velocity at the trough of the corrugated plate, prolong the heat exchange time, and improve the heat exchange rate.

[0024] efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of the structure of the utility model.

[0026] FIG. 2 is a schematic diagram of the mesh fin structure of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example 1

[0029] A high-efficiency heat exchanger for a compressed air energy storage system, comprising a water inlet flange 1, a water inlet 2, a compressed air inlet flange 3, a compressed air inlet 4, a water inlet heat exchange tube 5, an air inlet heat exchange tube 6, a heat exchange chamber A7, a heat exchange chamber B8, and a heat exchange chamber C9; the water inlet flange 1 is provided on the water inlet 2; the water inlet 2 is connected to the water inlet heat exchange tube 5; the water inlet heat exchange tube 5 is arranged in an S-shaped structure; an air inlet heat exchange tube 6 is arranged in the water inlet heat exchange tube 5; the air inlet heat exchange tube 6 is arranged in an S-shaped structure; one end of the air inlet heat exchange tube 6 is connected to the compressed air inlet 4; the compressed air inlet flange 3 is provided on the top of the compressed air inlet 4; a drain port 201 is provided at the end of the water inlet heat exchange tube 5; a drain port flange 101 is provided on the drain port 201; a compressed air exhaust port 401 is provided at the end of the air inlet heat exchange tube 6; the compressed air exhaust port 401 A compressed air exhaust port flange 301 is arranged on the top; a heat exchange cavity A7, a heat exchange cavity B8 and a heat exchange cavity C9 are arranged between the water inlet heat exchange tube 5 and the air inlet heat exchange tube 6 respectively, so that the water inlet heat exchange tube can be arranged by the S-shaped structure, and the air inlet heat exchange tube is arranged by wrapping the water inlet heat exchange tube, so as to increase the heat exchange contact area to the greatest extent, improve the heat exchange efficiency, ensure the heat exchange efficiency, and shorten the heat exchange time. Improve the heat exchange efficiency.

[0030] Example 2

[0031] On the basis of Example 1, a plurality of vortex generators 10 are arranged in the intake heat exchange tube 6; the vortex generator 10 is connected and arranged inside the intake heat exchange tube 6 through a support frame 11, so that the air flow rate can be reduced by the arranged vortex generator, and the vortex is generated to increase the gas contact area in the intake heat exchange tube, thereby maximizing the use of air energy.

[0032] Example 3

[0033] On the basis of Example 1, the inner wall surfaces of the heat exchange chambers A7, B8 and C9 are provided with corrugated plates 13, which can increase the contact area between water flow and air and improve the heat exchange efficiency.

[0034] Example 4

[0035] On the basis of Example 1, a plurality of guide plates 12 are arranged on the corrugated plate 13, which can guide the water flow into the trough of the corrugated plate through the arranged guide plates, so that the water flows as close to the surface of the corrugated plate as possible, thereby improving the heat exchange efficiency.

[0036] Example 5

[0037] On the basis of Example 1, a plurality of groups of mesh fin plates 14 are arranged on the corrugated plate 13, so that the heat exchange efficiency can be improved by utilizing the larger surface area of ​​the mesh fin plates.

[0038] Example 6

[0039] On the basis of Example 1, the guide plate 12 is arranged at the crest of the corrugated plate 13, so that the guide plate can be arranged at the crest of the corrugated plate to ensure the flow velocity in the corrugated plate, thereby ensuring fluidity while performing heat exchange.

[0040] Example 7

[0041] On the basis of Example 1, the mesh fin plate 14 is arranged at the trough of the corrugated plate 13, which can further reduce the flow velocity at the trough of the corrugated plate, prolong the heat exchange time, and improve the heat exchange efficiency.

[0042] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A high-efficiency heat exchanger for a compressed air energy storage system, characterized in that: The invention comprises a water inlet flange (1), a water inlet (2), a compressed air inlet flange (3), a compressed air inlet (4), a water inlet heat exchange pipe (5), an air inlet heat exchange pipe (6), a heat exchange chamber A (7), a heat exchange chamber B (8), and a heat exchange chamber C (9); the water inlet flange (1) is arranged on the water inlet (2); the water inlet (2) is connected to the water inlet heat exchange pipe (5); the water inlet heat exchange pipe (5) is arranged in an S-shaped structure; an air inlet heat exchange pipe (6) is arranged in the water inlet heat exchange pipe (5); the air inlet heat exchange pipe (6) is arranged in an S-shaped structure; one end of the air inlet heat exchange pipe (6) Connected to a compressed air inlet (4); a compressed air inlet flange (3) is provided at the top of the compressed air inlet (4); a drain outlet (201) is provided at the end of the water inlet heat exchange pipe (5); a drain outlet flange (101) is provided on the drain outlet (201); a compressed air exhaust port (401) is provided at the end of the air inlet heat exchange pipe (6); a compressed air exhaust port flange (301) is provided on the compressed air exhaust port (401); a heat exchange chamber A (7), a heat exchange chamber B (8) and a heat exchange chamber C (9) are provided between the water inlet heat exchange pipe (5) and the air inlet heat exchange pipe (6), respectively.

2. A high-efficiency heat exchanger for a compressed air energy storage system according to claim 1, characterized in that: A plurality of vortex generators (10) are arranged inside the air intake heat exchange tube (6); the vortex generators (10) are connected and arranged inside the air intake heat exchange tube (6) via a support frame (11).

3. The high-efficiency heat exchanger for a compressed air energy storage system according to claim 1, characterized in that: The inner wall surfaces of the heat exchange chamber A (7), the heat exchange chamber B (8), and the heat exchange chamber C (9) are provided with corrugated plates (13).

4. The high-efficiency heat exchanger for a compressed air energy storage system according to claim 3, characterized in that: A plurality of groups of guide plates (12) are arranged on the corrugated plate (13).

5. The high-efficiency heat exchanger for a compressed air energy storage system according to claim 3, characterized in that: A plurality of groups of mesh fin plates (14) are arranged on the corrugated plate (13).

6. The high-efficiency heat exchanger for a compressed air energy storage system according to claim 4, characterized in that: The guide plate (12) is arranged at the crest of the corrugated plate (13).

7. The high-efficiency heat exchanger for a compressed air energy storage system according to claim 5, characterized in that: The mesh fin plate (14) is arranged at the trough of the corrugated plate (13).

Images