A chemical condensation device to prevent particle deposition

Abstract

This utility model discloses a chemical condensation device for preventing particle deposition. It addresses the problems of low efficiency and difficult cleaning caused by particle deposition in traditional condensation devices. It adopts a serpentine condenser tube group (multiple parallel condenser tubes connected in series by bending, with polished inner walls), an integrated pulse jet cleaning drainage cleaning unit, a multi-dimensional heat dissipation cooling unit, and an intelligent controller to achieve efficient steam condensation, online removal of particles from the tube wall, precise temperature control, and flexible steam adjustment. It enables non-stop maintenance and ensures continuous production and intermediate quality.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a chemical condensation device for preventing particle deposition. Background Technology

[0002] In the production of pharmaceutical intermediates, steam condensation is a critical process, and its efficiency and cleanliness directly affect the purity, yield, and production continuity of the intermediates. Currently, most condensation units used in the pharmaceutical and chemical industry employ straight tubes or simple spiral coil structures. While these achieve basic condensation functions, they still have significant drawbacks due to the specific characteristics of pharmaceutical intermediate production (such as high material sensitivity, the need for strict control of residual impurities, and the requirement for continuous and stable operation): 1. Particle deposition leads to decreased heat exchange efficiency and product contamination: During the synthesis of pharmaceutical intermediates, steam often carries unreacted solid particles. Traditional straight tubes or spiral condensers have insufficient inner wall smoothness and short flow channels, leading to uneven steam flow and easy particle deposition on the tube walls, forming a fouling layer. This not only reduces condensation heat exchange efficiency (increased fouling thermal resistance) but may also detach and enter the condensate, causing excessive impurities in the intermediate product and affecting the quality of subsequent synthesis steps. 2. Difficult cleaning and maintenance, making it hard to meet continuous production needs: To remove particle deposits from the tube walls of traditional condensation units, it is usually necessary to shut down the unit, disassemble the condenser tubes, and use chemical cleaning or high-pressure water jet rinsing, which is time-consuming, labor-intensive, and may damage the condenser tubes. For pharmaceutical intermediate production, frequent downtime for maintenance can severely impact production plans, increase costs, and potentially lead to batch-to-batch product quality fluctuations. 3. Low flexibility in steam on / off and flow rate regulation: Pharmaceutical production often requires adjusting the steam feed rate according to the reaction progress. Traditional condenser steam control often uses manual valves or simple on / off valves, making it difficult to achieve precise flow rate regulation and rapid on / off switching, which may lead to problems such as steam leakage, pressure fluctuations, or incomplete condensation.

[0003] In summary, there is an urgent need for a condensation device designed to meet the production needs of pharmaceutical intermediates. Through structural optimization, functional integration, and intelligent control, it can solve problems such as particle deposition, difficult cleaning, low temperature control accuracy, and inflexible steam regulation, thereby ensuring continuous and stable production and product quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a chemical condensation device that prevents particle deposition.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a chemical condensation device for preventing particulate deposition, comprising: a condensation box, which is a rectangular or cylindrical box with an open top and a closed bottom, used to house the condensation assembly and the steam condensation process; a serpentine condensation assembly, fixedly installed inside the condensation box, consisting of multiple parallel condensation tubes connected in series by bends to form a serpentine curved structure, used to condense the steam to be condensed; a cleaning assembly, sealed and connected to the bottom outlet of the serpentine condensation assembly, used to directionally spray cleaning media onto the inner wall of the condensation tubes to remove particulate deposits; a steam inlet unit, sealed and connected to the top inlet of the serpentine condensation assembly, used to regulate the steam on / off state and flow rate and to introduce the steam to be condensed into the condensation assembly; a drain cleaning unit, sealed and connected to the bottom outlet of the serpentine condensation assembly, integrating condensate discharge and online cleaning functions; a cooling unit, arranged around the serpentine condensation assembly inside the condensation box, used to maintain a low-temperature environment inside the condensation assembly to promote steam condensation; and a controller, electrically connected to the steam inlet unit, drain cleaning unit, and cooling unit, located on an operation panel outside the condensation box, used to coordinate the control of steam on / off state, cleaning operation, and cooling intensity.

[0007] As a preferred embodiment of this utility model, the serpentine condenser assembly includes: multiple parallel condenser tubes made of copper or stainless steel, with polished inner walls to reduce particle adhesion; a bend connecting the ends of two adjacent condenser tubes to form a continuous serpentine bending structure with a bending angle of 90°-180°; and a fixing clip, made of elastic metal sheet, installed on the inner wall of the condenser box and fitted against the outer wall of the condenser tubes to limit radial displacement of the condenser tubes and prevent vibration deformation; wherein, the top inlet of the serpentine condenser assembly is sealed and connected to the outlet end of the two-position three-way solenoid valve in the steam inlet unit through an inlet flange, and the bottom outlet is sealed and connected to the inlet of the drain cleaning unit through an outlet flange.

[0008] As a preferred embodiment of this utility model, the steam inlet unit includes: a steam inlet, which passes through the side wall of the condenser and connects to an external steam source; a two-position three-way solenoid valve, which is installed on the pipeline between the steam inlet and the condenser assembly, and has an on / off state and a bypass state, used to control the on / off state of steam and the pressure relief of the condenser assembly; a flow regulating valve, which is connected in series on the pipeline between the steam inlet and the two-position three-way solenoid valve, and is an electrically operated regulating valve with an adjustment range of 0-100% opening, used to regulate the steam feed rate; and a pressure sensor, which is installed on the pipeline between the outlet end of the steam inlet and the inlet end of the two-position three-way solenoid valve, used to monitor the steam pressure and feed the pressure signal back to the controller in real time.

[0009] As a preferred embodiment of this utility model, the cooling unit includes: heat exchange tubes arranged in a rectangular, equidistant pattern around the inner wall of the condenser, made of copper; heat dissipation fins fixed to the outer surface of the heat exchange tubes, arranged in a rectangular array, made of the same material as the heat exchange tubes, used to increase the heat exchange area; a cooling circulating water pump located on the outer side of the bottom of the condenser, with its inlet end sealed to the outlet of the heat exchange tube and its outlet end sealed to the inlet of the heat exchange tube, forming a closed loop, used to drive the cooling medium to flow through the heat exchange tubes; a cooling fan fixed to the top of the condenser by a fixed bracket, of the axial flow type, used to accelerate the airflow on the surface of the heat exchange tubes; and an air outlet located at the bottom of the condenser opposite to the cooling fan, arranged in a rectangular array, used to connect the outside world with the condenser to form vertical convection.

[0010] As a preferred embodiment of this utility model, the drain cleaning unit includes: a liquid outlet end that passes through the bottom of the condenser and is sealed to the bottom outlet of the serpentine condenser assembly; an inlet end integrated into the end of the condenser tube; and a drain ball valve provided at the outlet end for controlling the discharge flow rate of the condensate; and a cleaning assembly that is sealed to the side of the liquid outlet end, with the spray direction coinciding with the axis of the liquid outlet end, for directional spraying of cleaning medium onto the inner wall of the condenser tube.

[0011] As a preferred embodiment of this utility model, the cleaning assembly includes: a pulse jet head, fixed to the side of the jet head bracket, with the central axis of the jet nozzle coinciding with the axis of the liquid outlet; a jet head bracket, fixed to the side of the condenser box, with a waist-shaped mounting hole on the side for adjusting the height of the pulse jet head; a cleaning airflow inlet, located on the side of the pulse jet head, connected to an external compressed air pump via an air inlet pipe, with a one-way valve on the air inlet pipe; a cleaning liquid inlet, located on the other side of the pulse jet head, connected to an external cleaning liquid supply tank via a liquid inlet pipe, with a one-way valve on the liquid inlet pipe; and a pulse generator, integrated inside the pulse jet head, for generating high-pressure pulsed airflow or liquid flow to drive the cleaning medium to be ejected from the jet nozzle.

[0012] As a preferred technical solution of this utility model, the controller includes: a human-machine interface, which is set on the operation panel to display parameters such as steam pressure, cooling temperature, and cleaning frequency, and to receive control commands input by the user.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The use of serpentine condenser components extends the flow path of steam in the condenser tubes, allowing the steam to fully contact the tube wall and improve condensation heat exchange efficiency. At the same time, the inner wall of the condenser tubes is polished, and the fixing clips restrict the radial displacement of the tube wall and suppress vibration deformation, effectively reducing the probability of particle adhesion, reducing fouling thermal resistance, and ensuring stable condensation efficiency.

[0015] 2. The drainage and cleaning unit is integrated with the cleaning components. The cleaning medium is sprayed directionally onto the inner wall of the condenser tube through a pulse jet head, and the deposited particles are removed by high-pressure pulse impact. There is no need to disassemble the condenser tube during the cleaning process. The cleaning frequency and pulse intensity can be automatically controlled by the controller to achieve "condensing and cleaning at the same time", avoiding downtime for maintenance and meeting the needs of continuous production of pharmaceutical intermediates.

[0016] 3. The cooling unit forms a multi-dimensional heat dissipation system by arranging heat exchange tubes, cooling water pumps and top axial fans in a rectangular arrangement around the inner wall of the condenser box; combined with the bottom air outlet's upward and downward convection design, it can accurately maintain the low temperature environment inside the condenser components, avoid overcooling or insufficient condensation, and ensure that the intermediate crystal morphology is uniform and the impurity content is low.

[0017] 4. The steam inlet unit is equipped with a two-position three-way solenoid valve, an electric regulating valve, and a pressure sensor. The controller can monitor the steam pressure in real time and automatically adjust the feed rate and on / off status to avoid safety risks caused by steam leakage or excessive pressure. At the same time, the controller integrates a human-machine interface, which allows users to set parameters such as condensation temperature and cleaning cycle, realizing closed-loop control of "monitoring-decision-execution", adapting to changes in steam demand at different stages of pharmaceutical production and improving process flexibility.

[0018] 5. The condenser is a closed structure, and the steam condensation process is completed in a closed environment, reducing the entry of external impurities; the cleaning medium is transported through independent pipelines to avoid cross-contamination with steam; the liquid outlet of the drain cleaning unit is equipped with a drain ball valve, which can independently control the discharge path of the condensate, preventing the cleaning waste liquid from mixing with qualified condensate, which meets the requirements of the pharmaceutical industry for clean production. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is the front view of this utility model;

[0022] Figure 3 This is an internal top view of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0024] In the diagram: 1. Condensation chamber; 2. Condensation assembly; 3. Cooling unit; 4. Cleaning assembly; 5. Steam inlet unit; 6. Drainage and cleaning unit; 7. Controller; 21. Condensation tube; 22. Bend; 23. Fixing clip; 24. Inlet flange; 25. Outlet flange; 31. Cooling circulating water pump; 32. Heat exchange tube; 33. Fixing bracket; 34. Cooling fan; 35. Air outlet; 36. Heat dissipation fins; 41. Nozzle bracket; 42. Pulse jet head; 43. Cleaning air inlet; 44. Cleaning fluid inlet; 51. Steam inlet; 52. Two-position three-way solenoid valve; 53. Flow regulating valve; 54. Pressure sensor; 61. Liquid outlet; 62. Drainage ball valve; 71. Human-machine interface; 421. Pulse generator; 431. Air inlet pipe; 432. Air circuit check valve; 441. Liquid inlet pipe; 442. Liquid circuit check valve. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] In the attached diagram, all identical reference numerals refer to the same components.

[0027] Example 1: Basic anti-particle deposition condensation device (conventional pharmaceutical intermediate production scenario), such as Figure 1-4 As shown, the condenser box 1 is a rectangular box with an open top and a closed bottom, forming a condensation chamber inside. The top opening is used to install the serpentine condenser assembly 2 and other components, and the bottom has a drain port (size adapted for pipe connection) that connects to the drain cleaning unit 6. The inner wall of the condenser box 1 is fixed with a retaining clip 23 made of elastic metal sheet material (approximately 2mm thick, with a width matching the outer diameter of the condenser tube 21) by welding, which is used to limit the radial displacement of the condenser tube 21 and suppress vibration deformation.

[0028] The serpentine condenser assembly 2 is fixed inside the condensation chamber. It consists of multiple parallel stainless steel condenser tubes 21 (with mechanically polished inner walls, roughness Ra≤0.8μm) connected in series by bends 22 (90° bending angle, material consistent with condenser tubes 21) to form a serpentine structure, extending along the length of the condenser box 1. The two ends of the condenser tubes 21 are connected to an inlet flange 24 and an outlet flange 25 (both stainless steel, flange sizes adapted to pipe interfaces): the inlet flange 24 is located on the side of the condenser box 1 and is sealed to the outlet of the steam inlet unit 5 (connected by flange bolts with a high-temperature resistant gasket in between); the outlet flange 25 is located at the center of the bottom of the condenser box 1 and is sealed to the inlet of the drain cleaning unit 6. A fixing clip 23 is bolted to the inner wall of the condenser box 1, fitting snugly against the outer wall of the condenser tubes 21 to restrict radial displacement (allowable displacement ≤1mm).

[0029] The steam inlet unit 5 is installed on the right side wall of the condenser 1 (300mm from the top opening). It includes a steam inlet 51 (made of steel pipe, with a diameter matching the external steam source pipe, passing through the side wall of the condenser 1 and connecting to the external steam source flange), a two-position three-way solenoid valve 52 (located on the pipeline between the steam inlet 51 and the inlet flange 24, with a stainless steel valve body and a switching response time of ≤0.5s), a flow regulating valve 53 (an electric regulating valve with a copper valve body, an adjustment range of 0-100% opening, automatically adjusting after receiving a signal from the pressure sensor 54 via the controller 7), and a pressure sensor 54 (installed on the pipeline between the flow regulating valve 53 and the two-position three-way solenoid valve 52, with a monitoring range of 0-1.0MPa). In normal condensation mode, the two-position three-way solenoid valve 52 is in the "on / off" state (bypass cut-off), allowing only steam to enter the serpentine condenser assembly 2; when maintenance and pressure relief are required, it switches to the "bypass" state, guiding steam out through the bypass to prevent excessive pressure inside the condenser 1.

[0030] The cooling unit 3 is arranged in a rectangular equidistant pattern around the inner wall of the condenser box 1 (10 groups in total, 50mm apart). Each group includes heat exchange tubes 32 (copper material, 20mm in diameter, arranged in a serpentine pattern along the height of the condenser box 1), heat dissipation fins 36 (copper material, 1mm thick, 30mm wide, distributed in a rectangular array along the heat exchange tubes 32, with a spacing of 10mm), cooling circulating water pump 31 (located on the outside of the bottom of the condenser box 1, with the inlet end sealed to the outlet of the heat exchange tubes 32 and the outlet end sealed to the inlet of the heat exchange tubes 32), cooling fan 34 (axial flow fan, 150mm in diameter, fixed to the top of the condenser box 1 by a fixing bracket 33, 200mm away from the top of the heat exchange tubes 32), and air outlets 35 (6 rectangular array air outlets opened at the bottom of the condenser box 1 opposite to the cooling fan 34). The cooling medium (room temperature water or coolant) in the heat exchange tube 32 is driven to circulate by the cooling water pump 31, and the heat dissipation fins 36 increase the contact area with the air; the cooling fan 34 accelerates the air flow on the surface of the heat exchange tube 32 (wind speed ≥2m / s), and the air outlet 35 forms vertical convection (air inlet at the top of the condenser box 1 and air outlet at the bottom), maintaining the temperature inside the condenser chamber stable (controlled within the range of the intermediate dew point ±2℃).

[0031] The drain cleaning unit 6 is installed on the side of the condenser box 1 (directly below the outlet flange 25), including a liquid outlet end 61 (made of steel pipe, with a diameter matching the condenser pipe 21, the inlet end is sealed and connected to the outlet flange 25, and the outlet end extends to the outside of the condenser box 1), a drain ball valve 62 (a full-bore ball valve, located below the liquid outlet end 61, with a valve body made of stainless steel and a switching stroke ≤90°), and a cleaning component 4 (sealed and connected to the side of the liquid outlet end 61, with the connection position 500mm away from the outlet of the outlet end 61).

[0032] The cleaning assembly 4 includes a pulse jet head 42 (made of stainless steel, with a nozzle diameter of 5mm, and its central axis coincides with the axis of the liquid outlet end 61), a nozzle bracket 41 with a waist-shaped mounting hole on the side for adjusting the height of the pulse jet head 42 via bolts (adjustment range 0-100mm), a cleaning airflow inlet 43 (located on the side of the pulse jet head 42, connected to an external compressed air pump (pressure 0.5-0.8MPa) via an air inlet pipe 431), and an air circuit check valve 4 on the air inlet pipe 431. 32 (to prevent backflow of cleaning fluid), cleaning fluid inlet 44 (located on the other side of the pulse jet head 42, connected to an external cleaning fluid supply tank (to store deionized water or solvent) via inlet pipe 441 (soft hose material, inner diameter 8mm), with a liquid circuit check valve 442 (to prevent gas backflow) and a pulse generator 421 (integrated inside the pulse jet head 42, controlled by a solenoid valve to generate high-pressure pulse airflow / liquid flow, pulse frequency 1-10Hz, pressure 0.3-0.6MPa).

[0033] The controller 7 is located on the control panel outside the condenser 1 (1.2m above the ground), and includes a human-machine interface 71 (a 7-inch touchscreen that displays parameters such as steam pressure, cooling temperature, and cleaning frequency, and supports manual / automatic mode switching). The controller 7 is electrically connected to a two-position three-way solenoid valve 52 (controlling steam on / off / pressure relief), a flow regulating valve 53 (regulating steam flow), a pressure sensor 54 (providing steam pressure feedback), a cooling circulating water pump 31 (start / stop and speed regulation), a cooling fan 34 (start / stop control), a drain ball valve 62 (on / off control), and a pulse generator 421 (triggering pulse injection) via signal lines to achieve closed-loop control of "monitoring-decision-execution".

[0034] Example 2: High-efficiency anti-particle deposition condensation device (high viscosity intermediate production scenario)

[0035] The difference between this embodiment and Embodiment 1 is as follows: the number of condenser tubes 21 in the serpentine condenser assembly 2 is increased to 8 (compared to 4 in Embodiment 1), and the bending angle of the bend 22 is adjusted to 120° (extending the steam path), further increasing the condensation area (100% larger than in Embodiment 1); the number of heat exchange tubes 32 in the cooling unit 3 is increased to 6 sets, and the thickness of the heat dissipation fins 36 is increased to 2mm (enhancing heat exchange efficiency); the diameter of the pulse jet head 42 in the cleaning assembly 4 is increased to 8mm (expanding the cleaning coverage), suitable for online cleaning of high-viscosity intermediate vapors (which easily form a dense deposit layer on the tube wall). The remaining structure is consistent with Embodiment 1. By increasing the condensation area, enhancing heat exchange, and expanding the cleaning coverage, the high-viscosity material's efficient condensation and deep cleaning requirements are met.

[0036] This utility model is a chemical condensation device for preventing particle deposition. Through structural innovation, functional integration and intelligent control, it effectively solves the key pain points of the condensation process in the production of pharmaceutical intermediates, significantly improves production efficiency, product quality and equipment reliability, and has significant practical value and market promotion prospects.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A chemical condensing device for preventing particle deposition, characterized by, include: The condenser box (1) is a rectangular or cylindrical box with an open top and closed bottom, used to house the condenser assembly (2) and the steam condensation process; the serpentine condenser assembly (2) is fixedly installed inside the condenser box (1), consisting of multiple parallel condenser tubes (21) connected in series by bends (22) to form a serpentine curved structure, used for condensing the steam to be condensed; the cleaning assembly (4) is sealed to the bottom outlet of the serpentine condenser assembly (2), used for directional spraying of cleaning media onto the inner wall of the condenser tubes (21) to remove particulate deposits; the steam inlet unit (5) is sealed to the top inlet of the serpentine condenser assembly (2), used for adjusting... The steam on / off switch and flow rate are controlled, and steam to be condensed is introduced into the condensing assembly (2); the drain cleaning unit (6) is sealed and connected to the bottom outlet of the serpentine condensing assembly (2), integrating the functions of condensate discharge and online cleaning; the cooling unit (3) is arranged around the serpentine condensing assembly (2) in the condensing box (1) to maintain the low temperature environment in the condensing assembly (2) to promote steam condensation; the controller (7) is electrically connected to the steam inlet unit (5), the drain cleaning unit (6) and the cooling unit (3), and is set on the operation panel on the outside of the condensing box (1) to coordinate the control of steam on / off switch, cleaning operation and cooling intensity.

2. The anti-particulate deposition chemical condensing device of claim 1, wherein, The serpentine condenser assembly (2) includes: multiple parallel condenser tubes (21) made of copper or stainless steel, with polished inner walls to reduce particle adhesion; a bend (22) connecting the beginning and end of two adjacent condenser tubes (21) to form a continuous serpentine bending structure with a bending angle of 90°-180°; a fixing clip (23) set on the inner wall of the condenser box (1), made of elastic metal sheet, fitting against the outer wall of the condenser tubes (21), used to limit the radial displacement of the condenser tubes (21) and prevent vibration deformation; wherein, the top inlet of the serpentine condenser assembly (2) is sealed and connected to the outlet end of the two-position three-way solenoid valve (52) in the steam inlet unit (5) through the inlet flange (24), and the bottom outlet is sealed and connected to the inlet of the drain cleaning unit (6) through the outlet flange (25).

3. The anti-particulate deposition chemical condensing device of claim 1, wherein, The steam inlet unit (5) includes: a steam inlet (51) that passes through the side wall of the condenser (1) and is connected to an external steam source; a two-position three-way solenoid valve (52) that is installed on the pipeline between the steam inlet (51) and the condenser assembly (2), and has an on / off state and a bypass state, used to control the on / off state of steam and the depressurization of the condenser assembly (2); a flow regulating valve (53) that is connected in series on the pipeline between the steam inlet (51) and the two-position three-way solenoid valve (52), and is an electric regulating valve with an adjustment range of 0-100% opening, used to regulate the steam feed rate; and a pressure sensor (54) that is installed on the pipeline between the outlet end of the steam inlet (51) and the inlet end of the two-position three-way solenoid valve (52), used to monitor the steam pressure and feed the pressure signal back to the controller (7) in real time.

4. The anti-particulate deposition chemical condensing device of claim 1, wherein, The cooling unit (3) includes: heat exchange tubes (32), which are arranged in a rectangular equidistant arrangement around the inner wall of the condenser (1) and are made of copper; heat dissipation fins (36), which are fixed to the outer surface of the heat exchange tubes (32) and are distributed in a rectangular array. They are made of the same material as the heat exchange tubes (32) and are used to increase the heat exchange area; cooling circulating water pump (31), which is located on the outside of the bottom of the condenser (1). The water inlet is sealed to the outlet of the heat exchange tubes (32) and the water outlet is sealed to the inlet of the heat exchange tubes (32) to form a closed loop and is used to drive the cooling medium to flow through the heat exchange tubes (32); cooling fan (34), which is fixed to the top of the condenser (1) by a fixed bracket (33). It is an axial flow fan and is used to accelerate the air flow on the surface of the heat exchange tubes (32); and air outlet (35), which is located at the bottom of the condenser (1) opposite to the cooling fan (34) and is arranged in a rectangular array to connect the outside world with the condenser (1) to form vertical convection.

5. The anti-particulate deposition chemical condensing device of claim 2, wherein, The drain cleaning unit (6) includes: a liquid outlet end (61) that passes through the bottom of the condenser box (1) and is sealed to the bottom outlet of the serpentine condenser assembly (2); an inlet end that is integrated into the end of the condenser tube (21); and an outlet end that is equipped with a drain ball valve (62) to control the discharge flow rate of the condensate; and a cleaning assembly (4) that is sealed to the side of the liquid outlet end (61) and whose spray direction coincides with the axis of the liquid outlet end (61) for directional spraying of cleaning medium onto the inner wall of the condenser tube (21).

6. A chemical condensing device for preventing particle deposition according to claim 5, characterized in that, The cleaning assembly (4) includes: a pulse jet head (42), fixed to the side of the nozzle bracket (41), with the central axis of the jet nozzle coinciding with the axis of the liquid outlet end (61); a nozzle bracket (41), fixed to the side of the condenser box (1), with a waist-shaped mounting hole on the side for adjusting the height of the pulse jet head (42); a cleaning airflow inlet (43), located on the side of the pulse jet head (42), connected to an external compressed air pump through an air inlet pipe (431), with a one-way valve (432) on the air inlet pipe (431); a cleaning liquid inlet (44), located on the other side of the pulse jet head (42), connected to an external cleaning liquid supply tank through a liquid inlet pipe (441), with a one-way valve (442) on the liquid inlet pipe (441); and a pulse generator (421), integrated inside the pulse jet head (42), for generating high-pressure pulse airflow or liquid flow to drive the cleaning medium to be ejected from the jet nozzle.

7. The anti-particulate deposition chemical condensing device of claim 1, wherein, The controller (7) includes a human-machine interface (71), which is set on the operation panel to display parameters such as steam pressure, cooling temperature, and cleaning frequency, and to receive control commands input by the user.

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