Electric control integrated anti-blocking spiral plate type heat exchange device
By employing a combination of a conical sealing structure and an ejector in the heat exchanger, the problem of scaling and clogging in heat exchangers under impurity media conditions is solved, enabling automatic online cleaning and descaling, and ensuring production continuity and efficiency.
Patent Information
- Application Number
- CN202520297697.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing heat exchangers are prone to scaling and clogging in liquid media containing impurities, leading to frequent shutdowns for maintenance and affecting the continuity of production processes and system efficiency.
A conical sealing structure is used to replace the flat sealing structure to change the direction of fluid flow, and an ejector is installed at the heat exchanger outlet. The negative pressure generated by the ejector is used to remove accumulated dirt and impurities, and the descaling process is monitored and controlled in real time by an electronic control system.
It effectively reduces the risk of scaling and clogging in heat exchangers, realizes automatic online drainage and anti-clogging of heat exchangers, and ensures the normal operation of the medium.
Smart Images
Figure CN223769332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, and in particular to an electronically controlled, anti-clogging spiral plate heat exchanger. Background Technology
[0002] Heat exchangers are among the most commonly used process equipment in industrial production, widely applied in industries such as metallurgy, petrochemicals, power generation, and building materials. The design and commissioning of heat exchangers greatly promote the efficient operation of production processes. Depending on the type of process medium involved in heat exchange and the differences in production process requirements, there are many types and forms of heat exchangers, the most common being shell-and-tube, plate, gas-liquid, gas-gas, and finned tube types.
[0003] In general, there are currently no mature and reliable anti-clogging and anti-scaling heat exchanger products for heat exchange scenarios involving liquid media containing impurities. In actual projects, many heat exchangers experience scaling and clogging problems after a short period of operation in such scenarios, leading to numerous and frequent downtimes for maintenance. This not only affects the continuity of process production and system heating efficiency but also reduces the economic efficiency of the project. In the field of heat exchange with liquid media containing impurities, scaling has become a core factor restricting the application of heat exchangers.
[0004] In response to this technical problem, this application proposes an electronically controlled, anti-clogging spiral plate heat exchanger. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated electronic control anti-clogging spiral plate heat exchanger. By replacing the flat plate sealing structure of conventional spiral plate heat exchangers with a conical sealing structure, the longitudinal flow direction of the fluid is changed, facilitating the downward collection and discharge of dirt and impurities. Furthermore, an ejector is installed at the heat exchanger outlet, comprehensively reducing the risk of scaling and clogging of the heat exchanger.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An integrated electronically controlled, anti-clogging spiral plate heat exchanger includes a chassis. A conical spiral plate heat exchanger is fixedly connected to the top center of the chassis via a heat exchanger bracket. A clean medium inlet is fixedly connected to the top of the conical spiral plate heat exchanger. A clean medium outlet is fixedly connected to the right front end of the conical spiral plate heat exchanger. An impurity-containing medium inlet is fixedly connected to the left rear end of the conical spiral plate heat exchanger. An impurity-containing medium straight discharge pipe is fixedly connected to the bottom end of the conical spiral plate heat exchanger. An impurity-containing medium outlet manifold is fixedly connected to the bottom end of the impurity-containing medium straight discharge pipe. An impurity-containing medium outlet is fixedly connected to the other end of the impurity-containing medium outlet manifold.
[0008] Furthermore, a jet pump is fixedly installed on the left side of the top of the chassis. The inlet of the jet pump is connected to the jet water inlet through the jet water pipe. The outlet of the jet pump is connected to the inlet of the second electric isolation valve through the jet water pipe. The outlet of the second electric isolation valve is connected to the inlet of the second check valve through the jet water pipe. The outlet of the second check valve is connected to the top of the jetter through the jet water pipe. The jetter is fixedly connected to the upper part of the top of the chassis through the jetter bracket. The side wall of the jetter is provided with a jetter inlet pipe. The jetter inlet pipe is provided with an electric isolation valve. The inlet of the jetter inlet pipe is connected to the upper part of the direct discharge pipe containing impurities. The bottom end of the jetter is provided with a jetter outlet pipe. The outlet of the jetter outlet pipe, the outlet of the direct discharge pipe containing impurities, and the inlet of the outlet manifold of the outlet containing impurities are connected.
[0009] Furthermore, a check valve is provided on the direct discharge pipe containing the impurity medium.
[0010] Furthermore, a check valve is provided on the injector outlet pipe.
[0011] Furthermore, an electrical control box is fixedly connected to the top right side of the chassis via an electrical control box bracket, and online pressure measuring points are provided on both the impurity-containing medium direct discharge pipe and the impurity-containing medium inlet.
[0012] Furthermore, the bottom ends of the ejector water pipe, the outlet manifold containing impurities, and the ejector outlet pipe are all fixedly connected to the top of the chassis via pipe supports.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, by using a conical sealing structure to replace the flat sealing structure of a conventional spiral plate heat exchanger, the longitudinal flow direction of the fluid is changed, which facilitates the downward collection and discharge of dirt and impurities. Furthermore, an ejector is installed at the heat exchanger outlet, which comprehensively reduces the risk of scaling and clogging of the heat exchanger.
[0015] 2. In this utility model, by using an ejector as a matching descaling technology for a conical spiral plate heat exchanger, and using clean water as the ejector medium, the negative pressure generated by the ejector is used to suck out the dirt and impurities accumulated in the heat exchanger, effectively ensuring the cleanliness of the heat exchanger surface. It can achieve the goal of automatic online sewage discharge and anti-clogging of the heat exchanger without affecting the normal operation of the medium containing impurities. Attached Figure Description
[0016] Figure 1 This is a perspective view of an electrically integrated anti-clogging spiral plate heat exchanger proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of an electrically integrated anti-clogging spiral plate heat exchanger proposed in this utility model;
[0018] Figure 3 This is a cross-sectional view of an electrically integrated anti-clogging spiral plate heat exchanger proposed in this utility model;
[0019] Figure 4 This is a top view of an electrically integrated anti-clogging spiral plate heat exchanger proposed in this utility model.
[0020] Legend:
[0021] 1. Clean medium inlet; 2. Conical spiral plate heat exchanger; 3. Clean medium outlet; 4. Electrical control box; 5. Chassis; 6. Check valve one; 7. Inlet for medium containing impurities; 8. Jet pump; 9. Jet water inlet; 10. Electric isolation valve one; 11. Check valve two; 12. Check valve three; 13. Ejector; 14. Ejector bracket; 15. Electric isolation valve two; 16. Outlet for medium containing impurities; 17. Pipe support; 18. Heat exchanger bracket; 19. Electrical control box bracket; 20. Jet water pipe; 21. Outlet manifold for medium containing impurities; 22. Straight discharge pipe for medium containing impurities; 23. Ejector outlet pipe; 24. Ejector inlet pipe. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of an integrated electronically controlled, anti-clogging spiral plate heat exchanger, comprising a chassis 5. A conical spiral plate heat exchanger 2 is fixedly connected to the top center of the chassis 5 via a heat exchanger bracket 18. A clean medium inlet 1 is fixedly connected to the top of the conical spiral plate heat exchanger 2. A clean medium outlet 3 is fixedly connected to the right side of the front end of the conical spiral plate heat exchanger 2. An impurity-containing medium inlet 7 is fixedly connected to the left side of the rear end of the conical spiral plate heat exchanger 2. An impurity-containing medium straight discharge pipe 22 is fixedly connected to the bottom end of the conical spiral plate heat exchanger 2. An impurity-containing medium outlet manifold 21 is fixedly connected to the bottom end of the impurity-containing medium straight discharge pipe 22. An impurity-containing medium outlet 16 is fixedly connected to the other end of the impurity-containing medium outlet manifold 21. An electronic control box 4 is fixedly connected to the top right side of the chassis 5 via an electronic control box bracket 19. Online pressure measuring points are provided on both the impurity-containing medium straight discharge pipe 22 and the impurity-containing medium inlet 7.
[0024] Specifically, the clean medium enters the clean medium flow area of the conical spiral plate heat exchanger 2 through the clean medium inlet 1, while the impurity-containing medium enters the impurity-containing medium flow area of the heat exchanger 2 through the impurity-containing medium inlet 7. In these two areas, the two media exchange heat through the spiral wall plates. The clean medium after heat exchange then flows out from the clean medium outlet 3, while the impurity-containing medium after heat exchange is discharged through the impurity-containing medium straight discharge pipe 22, and finally discharged from the impurity-containing medium outlet 16 through the impurity-containing medium outlet manifold 21. The electrical control box 4 monitors the inlet and outlet pressure measurement points on the impurity-containing medium side of the conical spiral plate heat exchanger 2 in real time, and determines whether the heat exchanger is blocked by calculating the pressure difference between the inlet and outlet. Once the pressure difference exceeds a preset threshold, the system will activate the jet descaling unit; when the pressure difference is below the threshold, the jet descaling unit will be shut down.
[0025] Reference Figure 1 and Figure 3 A jet pump 8 is fixedly installed on the top left side of the chassis 5. The inlet of the jet pump 8 is connected to the jet water inlet 9 through the jet water pipe 20. The outlet of the jet pump 8 is connected to the inlet of the electric isolation valve 15 through the jet water pipe 20. The outlet of the electric isolation valve 15 is connected to the inlet of the check valve 11 through the jet water pipe 20. The outlet of the check valve 11 is connected to the top of the jet injector 13 through the jet water pipe 20. The jet injector 13 is fixedly connected to the top of the chassis 5 through the jet injector bracket 14. The side wall of the jet injector 13 is provided with a jet injector inlet pipe 24. An electric isolation valve 10 is provided on the jet injector inlet pipe 24. The inlet of the jet injector inlet pipe 24 is connected to the upper part of the impurity medium direct discharge pipe 22. The bottom end of the jet injector 13 is provided with a jet injector outlet pipe 23. The outlet of the jet injector outlet pipe 23, the outlet of the impurity medium direct discharge pipe 22, and the inlet of the impurity medium outlet manifold 21 are connected. The bottom ends of the ejector water pipe 20, the outlet manifold 21 containing impurities, and the ejector outlet pipe 23 are all fixedly connected to the top of the chassis 5 via pipe supports 17.
[0026] Specifically, when the conical spiral plate heat exchanger 2 becomes clogged, the jet descaling unit should be activated, and the jet pump 8 and the electric isolation valve 10 should be turned on simultaneously. Water will then be introduced into the ejector 13, where high-speed jetting generates negative pressure suction. This force will draw tiny impurity particles stuck between the spiral plates into the ejector 13, and ultimately discharge them from the impurity-containing medium outlet 16 through the ejector outlet pipe 23 and the impurity-containing medium outlet manifold 21. This process achieves the online cleaning and descaling function of the spiral plate heat exchanger. After descaling is completed, the electric isolation valve 10 and the jet pump 8 should be closed sequentially to complete the flushing and descaling process.
[0027] A check valve 3 12 is installed on the impurity-containing medium direct discharge pipe 22 to prevent backflow of the impurity-containing medium in the direct discharge pipe when the jet descaling unit is started. A check valve 2 11 is installed on the jet water pipe 20 to prevent the impurity-containing medium from flowing back through the jet pump 8 to the jet water pipe 20 and the jet pump 8 through the jet pump 8 in case of a malfunction, which would damage the jet pump 8 and contaminate the jet water. A check valve 1 6 is installed on the jet outlet pipe 23 to prevent the medium in the impurity-containing medium direct discharge pipe 22 from flowing back through the jet outlet pipe 23 to the jet pump 13, which would damage the jet pump 13. Online pressure measuring points are installed on the inner walls of the impurity-containing medium direct discharge pipe 22 and the impurity-containing medium inlet 7 to monitor the blockage of the impurity-containing medium side of the conical spiral plate heat exchanger in real time, thereby guiding the operation mode of the jet descaling unit.
[0028] Working principle: Clean medium enters the clean medium flow area of the conical spiral plate heat exchanger 2 through clean medium inlet 1, while impurity-containing medium enters the impurity-containing medium flow area of the conical spiral plate heat exchanger 2 through impurity-containing medium inlet 7. The two media complete the heat exchange process through the spiral wall plates. After heat exchange, the clean medium flows out through clean medium outlet 3, and the impurity-containing medium is discharged through impurity-containing medium straight discharge pipe 22 and then through impurity-containing medium outlet manifold 21 to outlet 16. The electrical control box 4 collects the readings of the inlet and outlet pressure measuring points on the impurity-containing medium side of the conical spiral plate heat exchanger 2 in real time. The pressure difference between the inlet and outlet is used to determine the blockage of the heat exchanger. When the pressure difference exceeds the set threshold, the jet cleaning is activated. In the descaling unit, when the pressure is less than the set threshold, the jet descaling unit is shut down; when the conical spiral plate heat exchanger 2 becomes clogged, the jet descaling unit is started, and the jet pump 8 and the electric isolation valve 10 are turned on simultaneously. Water is drawn into the ejector 13, and a certain negative pressure suction is formed in the ejector 13 through high-speed jetting. This causes small impurity particles stuck between the spiral plates to be sucked out into the ejector 13 under the action of the ejector 13 suction force, and finally discharged from the impurity medium outlet 16 through the ejector outlet pipe 23 and the impurity medium outlet manifold 21, thereby achieving the online cleaning and descaling effect of the spiral plate heat exchanger. After the descaling is completed, the electric isolation valve 10 and the jet pump 8 are closed in sequence to complete the flushing and descaling process.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electrically integrated anti-clogging spiral plate heat exchanger, characterized in that: The utility model relates to a kind of heat exchangers, including chassis (5), the top middle part of the chassis (5) is fixedly connected with conical spiral plate heat exchanger (2) by heat exchanger support (18), the top of the conical spiral plate heat exchanger (2) is fixedly connected with pure medium inlet (1), the front right side of the conical spiral plate heat exchanger (2) is fixedly connected with pure medium outlet (3), the rear left side of the conical spiral plate heat exchanger (2) is fixedly connected with impurity-containing medium inlet (7), the bottom of the conical spiral plate heat exchanger (2) is fixedly connected with impurity-containing medium direct discharge pipe (22), the bottom of the impurity-containing medium direct discharge pipe (22) is fixedly connected with impurity-containing medium outlet manifold (21), the other end of the impurity-containing medium outlet manifold (21) is fixedly connected with impurity-containing medium outlet (16).
2. The electrically controlled integrated anti-blocking spiral plate heat exchanger according to claim 1, characterized in that: The top left side of the chassis (5) is fixedly provided with injection pump (8), the injection pump (8) inlet is communicated with injection water inlet (9) by injection water pipe (20), the injection pump (8) outlet is communicated with electric isolation valve two (15) inlet by injection water pipe (20), the electric isolation valve two (15) outlet is communicated with check valve two (11) inlet by injection water pipe (20), the check valve two (11) outlet is communicated with the top of injector (13) by injection water pipe (20), the top upper portion of the chassis (5) is fixedly connected with injector (13) by injector support (14), the side wall of the injector (13) is provided with injector inlet pipe (24), the injector inlet pipe (24) is provided with electric isolation valve one (10), the injector inlet pipe (24) inlet is communicated with the upper portion of impurity-containing medium direct discharge pipe (22), the bottom of the injector (13) is provided with injector outlet pipe (23), the injector outlet pipe (23) outlet, impurity-containing medium direct discharge pipe (22) outlet and impurity-containing medium outlet manifold (21) inlet are communicated.
3. The electrically controlled integrated anti-blocking spiral plate heat exchanger according to claim 1, characterized in that: The impurity-containing medium direct discharge pipe (22) is provided with check valve three (12).
4. The electrically controlled integrated anti-blocking spiral plate heat exchanger according to claim 2, characterized in that: The injector outlet pipe (23) is provided with check valve one (6).
5. The electrically controlled integrated anti-blocking spiral plate heat exchanger according to claim 1, characterized in that: The top right side of the chassis (5) is fixedly connected with electric control box (4) by electric control box support (19), the impurity-containing medium direct discharge pipe (22) and impurity-containing medium inlet (7) are provided with on-line pressure measuring point.
6. The electrically controlled integrated anti-blocking spiral plate heat exchanger according to claim 2, characterized in that: The bottom of the injection water pipe (20), impurity-containing medium outlet manifold (21) and injector outlet pipe (23) is fixedly connected on the top of the chassis (5) by pipe support (17).