Countercurrent plate heat exchanger
By introducing adjustment and material resisting mechanisms into the counterflow plate heat exchanger, the problem of difficult to control the liquid flow rate in the heat exchanger is solved, and more efficient heat exchange is achieved and liquid retention is prevented, and equipment life is extended.
Patent Information
- Application Number
- CN202420911379.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-29
AI Technical Summary
It is difficult for existing heat exchangers to control the flow rate of gas or liquid during use, resulting in too fast liquid flow, affecting the heat exchange efficiency, and the liquid retention due to horizontal placement, corroding the heat exchanger cavity.
A counterflow plate heat exchanger is designed, including an adjustment mechanism and a material resisting mechanism. The adjustment mechanism adjusts the angle of the heat exchange shell through a support frame and a fastening hole. The material resisting mechanism uses drainage pipes, a flow resisting valves, a valve shaft and a return spring. Control the flow rate and flow rate of the liquid to avoid liquid retention.
Effectively control the flow rate and flow rate of liquids, prevent liquid retention, improve heat exchange efficiency, and discharge residual liquids by tilting, extending the life of the equipment.
Smart Images
Figure CN222257852U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a counter-flow plate heat exchanger. Background Art
[0002] Air conditioning, heating, petrochemicals, etc. are all large energy consumers and require heat exchangers. More than 80% of human energy requires thermal energy conversion, and thermal energy conversion requires heat exchangers. Therefore, heat exchangers are the most critical equipment for energy conservation and emission reduction.
[0003] During use, the heat exchanger mainly heats the liquid through high-temperature gas or liquid. During use, it is difficult to control the flow rate of gas or liquid inside the heat exchanger, resulting in excessive flow and velocity of the liquid, which will affect the efficiency of liquid heat exchange. In addition, the heat exchanger itself is placed horizontally, causing part of the liquid to be retained inside the heat exchanger, which will corrode the inner cavity of the heat exchanger over time. Summary of the invention
[0004] The purpose of the utility model is to provide a counter-flow plate heat exchanger to solve the above-mentioned defects caused by the prior art.
[0005] A countercurrent plate heat exchanger comprises a heat exchange shell, a sealing cover plate is arranged directly above the heat exchange shell, injection pipes are connected through the left and right sides of the heat exchange shell, discharge pipes are symmetrically connected on both sides of the injection pipes, and an adjustment mechanism is arranged at the bottom end of the heat exchange shell, and the adjustment mechanism adjusts the height of the left and right sides of the heat exchange shell, thereby forming an inclined state for one end of the heat exchange shell to facilitate the discharge of residual liquid inside the heat exchanger, and a material blocking mechanism is arranged inside the heat exchange shell, and the material blocking mechanism controls the flow rate of the internal liquid to avoid the liquid flow rate and flow being too fast, which affects the heat exchange efficiency.
[0006] Preferably, the adjustment mechanism includes a support frame 1, a support frame 2, fastening holes and a guide slot, the support frame 1 is installed on both sides of the heat exchange shell, the left and right sides of the support frame 1 are provided with guide slots, the outer side of the guide slot is connected to the inner end of the support frame 2, and the outer side of the support frame 2 is provided with fastening holes at equal intervals.
[0007] Preferably, the second support frame is connected to the left and right sides of the first support frame by fastening holes opened at equal intervals on the outer side.
[0008] Preferably, the material blocking mechanism includes a drain pipe, a choke valve, a valve shaft, a reset spring and a heat exchange cavity, the drain pipe is installed on both sides of the heat exchange shell, the heat exchange cavity is arranged inside the heat exchange shell, the valve shaft is symmetrically distributed inside the heat exchange cavity, the outer side of the valve shaft is connected to the choke valve, one end of the reset spring is staggeredly distributed on the outer side of the choke valve, and the other end of the reset spring is connected to the inside of the heat exchange cavity.
[0009] Preferably, the heat exchange shell is connected to the bottom end of the heat exchange cavity through a drain pipe that penetrates and connects therethrough.
[0010] Preferably, a fin plate is fitted and connected to the outer side of the sealing cover plate.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] 1. The support angle of the heat exchange shell is adjusted by the support frame 1 and the support frame 2 arranged on the left and right sides, so that the choke valve forms a horizontal state, so that the residual liquid is discharged from the inside of the heat exchange cavity through the drain pipe arranged at the bottom, avoiding the liquid from being retained in the heat exchange shell.
[0013] 2. During use, the left and right return springs are used to pull the left and right sides of the choke valve, so that the choke valve rotates on the outside of the valve shaft. According to the amount and pressure of the injected liquid, the rotation size of the choke valve is adjusted to control the flow of the liquid and open it. When the liquid stops being injected, the left and right return springs are used to pull the left and right sides of the choke valve, so that the choke valve forms a horizontal state, thereby completing the closure of the inside of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the side structure of the heat exchange shell in the utility model.
[0016] Figure 3 It is a schematic diagram of the top view structure of the heat exchange shell in the utility model.
[0017] Figure 4 It is a schematic diagram of the top-sectional structure of the heat exchange shell in the utility model.
[0018] Figure 5 It is a schematic diagram of the front cross-section structure of the heat exchange cavity in the present utility model.
[0019] in:
[0020] 1. Heat exchange shell; 2. Sealing cover plate; 3. Fin plate; 4. Liquid injection pipe; 5. Support frame 1; 6. Support frame 2; 7. Fastening hole; 8. Adjustment mechanism; 9. Drain pipe; 10. Guide chute; 11. Discharge pipe; 12. Material blocking mechanism; 13. Flow control valve; 14. Valve shaft; 15. Reset spring; 16. Heat exchange cavity. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] like Figures 1 to 5 As shown, the countercurrent plate heat exchanger includes a heat exchange shell 1, a sealing cover plate 2 is arranged directly above the heat exchange shell 1, and injection pipes 4 are connected to both sides of the heat exchange shell 1, and discharge pipes 11 are symmetrically connected to both sides of the injection pipe 4. An adjusting mechanism 8 is arranged at the bottom end of the heat exchange shell 1, and the adjusting mechanism 8 adjusts the height of the left and right sides of the heat exchange shell 1, thereby forming an inclined state for one end of the heat exchange shell 1, so as to facilitate the discharge of residual liquid inside the heat exchanger, and a material blocking mechanism 12 is arranged inside the heat exchange shell 1, and the material blocking mechanism 12 controls the flow rate of the internal liquid to avoid the liquid flow rate and flow being too fast, thereby affecting the heat exchange efficiency.
[0023] In this embodiment, the adjustment mechanism 8 includes a support frame 1 5, a support frame 2 6, a fastening hole 7 and a guide slot 10. The support frame 1 5 is installed on both sides of the heat exchange shell 1. The left and right sides of the support frame 1 5 are provided with guide slots 10. The outer side of the guide slot 10 is connected to the inner end of the support frame 2 6. The outer side of the support frame 2 6 is provided with fastening holes 7 at equal intervals. The fastening holes 7 are used to lock and limit the support frame 2 6 and the support frame 1 5.
[0024] In this embodiment, the support frame 2 6 is connected to the left and right sides of the support frame 1 5 by fastening holes 7 opened at equal intervals on the outside, and the bottom end of the heat exchange shell 1 is supported by the support frame 1 5 to adjust the angle of the heat exchange shell 1.
[0025] In this embodiment, the material blocking mechanism 12 includes a drain pipe 9, a choke valve 13, a valve shaft 14, a reset spring 15 and a heat exchange cavity 16. The drain pipe 9 is installed on both sides of the heat exchange shell 1. The heat exchange cavity 16 is arranged inside the heat exchange shell 1. The valve shaft 14 is symmetrically distributed inside the heat exchange cavity 16. The outer side of the valve shaft 14 is connected to the choke valve 13. One end of the reset spring 15 is staggeredly distributed on the outer side of the choke valve 13, and the other end of the reset spring 15 is connected to the inside of the heat exchange cavity 16.
[0026] In this embodiment, the heat exchange shell 1 is connected to the bottom end of the heat exchange cavity 16 through the drain pipe 9 that penetrates and connects, and the heat is absorbed by the heat exchange cavity 16 to heat the cold water transferred to the left and right sides.
[0027] In this embodiment, the outer side of the sealing cover plate 2 is fitted with a fin plate 3, and the fin plate 3 absorbs heat to complete the heat transfer.
[0028] This countercurrent plate heat exchanger includes the following work in practical application:
[0029] Step 1: The operator connects the injection pipes 4 provided on the left and right sides to the cold water end and the hot water end respectively, and according to the test needs, inserts the raised part on the outside of the support frame 1 5 into the outside of the guide chute 10 provided on the outside of the support frame 2 6, and adjusts the heat exchange shell 1 to a horizontal state or an inclined state, and then opens the liquid inlet valves on both sides to complete the injection of liquid into the heat exchange shell 1 and the heat exchange cavity 16, and injects hot water or hot exhaust gas into the heat exchange cavity 16, and transfers heat through the fins provided on the outside of the heat exchange cavity 16;
[0030] Step 2: The introduced cold water flows through the left and right sides of the heat exchange cavity 16 to transfer and absorb heat, and directly discharges the heated liquid through the discharge pipe 11 provided below, and controls the flow rate of the discharge pipe 11 by controlling the discharge amount;
[0031] Step 3: When hot water is directly injected into the heat exchange cavity 16, when the liquid contacts the choke valve 13, when the flow pressure of the liquid is greater than the return springs 15 arranged on both sides of the choke valve 13, the choke valve 13 rotates on the outside of the valve shaft 14, thereby adjusting and controlling the opening distance of the choke valve 13, and at the same time, slowing down the sulfuric acid in the hot water, so that the heat is evenly transferred to the cold water on both sides of the heat exchange shell 1, completing the heat absorption process of the cold water;
[0032] Step 4: After the heat exchange of the liquid is completed, the choke valve 13 loses the pressure of the liquid, and the return springs 15 arranged on the left and right sides pull the left and right sides of the choke valve 13, so that the choke valve 13 rotates on the outside of the valve shaft 14, so that the choke valve 13 forms a horizontal state, so that the remaining liquid is discharged from the inside of the heat exchange cavity 16 through the drain pipe 9 arranged at the bottom, avoiding the liquid from being retained in the heat exchange shell 1.
[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.
Claims
1. Countercurrent plate heat exchanger, characterized by: The invention comprises a heat exchange shell (1), a sealing cover plate (2) is arranged directly above the heat exchange shell (1), injection pipes (4) are connected to both left and right sides of the heat exchange shell (1), discharge pipes (11) are symmetrically connected to both sides of the injection pipes (4), an adjustment mechanism (8) is arranged at the bottom end of the heat exchange shell (1), the adjustment mechanism (8) adjusts the height of the left and right sides of the heat exchange shell (1), and then forms an inclined state for one end of the heat exchange shell (1), so as to facilitate the discharge of residual liquid in the heat exchanger, and a material blocking mechanism (12) is arranged inside the heat exchange shell (1), and the material blocking mechanism (12) controls the flow rate of the internal liquid to avoid the liquid flow rate and flow being too fast, thereby affecting the heat exchange efficiency.
2. The counterflow plate heat exchanger according to claim 1, characterized in that: The adjustment mechanism (8) comprises a support frame 1 (5), a support frame 2 (6), a fastening hole (7) and a guide slot (10); the support frame 1 (5) is installed on both sides of the heat exchange shell (1); the left and right sides of the support frame 1 (5) are provided with a guide slot (10); the outer side of the guide slot (10) is connected to the inner end of the support frame 2 (6); and the outer side of the support frame 2 (6) is provided with fastening holes (7) at equal intervals.
3. The counterflow plate heat exchanger according to claim 2, characterized in that: The second support frame (6) is connected to the left and right sides of the first support frame (5) by fastening holes (7) provided at equal intervals on the outer side.
4. The counterflow plate heat exchanger according to claim 1, characterized in that: The material blocking mechanism (12) comprises a drain pipe (9), a flow-blocking valve (13), a valve shaft (14), a reset spring (15) and a heat exchange cavity (16); the drain pipe (9) is installed on both sides of the heat exchange shell (1); the heat exchange cavity (16) is arranged inside the heat exchange shell (1); the valve shaft (14) is symmetrically distributed inside the heat exchange cavity (16); the outer side of the valve shaft (14) is connected to the flow-blocking valve (13); one end of the reset spring (15) is staggeredly distributed on the outer side of the flow-blocking valve (13); the other end of the reset spring (15) is connected to the inside of the heat exchange cavity (16).
5. The counterflow plate heat exchanger according to claim 4, characterized in that: The heat exchange shell (1) is connected to the bottom end of the heat exchange cavity (16) via a drain pipe (9) that penetrates and connects the drain pipe.
6. The counterflow plate heat exchanger according to claim 1, characterized in that: The outer side of the sealing cover plate (2) is fitted with a fin plate (3).