Alkali production condenser with anti-scour function and anti-scour method
By using a flow sensor in the condenser to adjust the working state of the anti-impact baffle, the problem that the prior art cannot take into account both the anti-impact and the anti-impact function is solved, and the efficient adaptability and heat exchange performance of the condenser are achieved.
Patent Information
- Application Number
- CN202411678792.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-01-07
AI Technical Summary
Existing condensers cannot take into account both anti-shock and no anti-shock functions, which affects the heat exchange efficiency.
An alkali-making condenser with anti-impact function is designed to monitor the fluid flow through a flow sensor, adjust the working status of the anti-impact baffle assembly, and dynamically adjust the anti-impact function according to the fluid flow rate, thereby meeting the needs of different fluid flow rates.
It improves the adaptability of the condenser and automatically adjusts the anti-shooting function according to the working conditions of the fluid, ensuring effective anti-shooting and efficient heat exchange at different fluid flow rates.
Smart Images
Figure CN119268413A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of heat exchangers, and in particular to an alkali-making condenser with an anti-impact function and an anti-impact method. Background Art
[0002] Condenser is a widely used heat exchange equipment. At present, most condensers are equipped with anti-collision baffle structure, especially shell and tube condenser. Although its structure is simple and compact and can withstand higher pressure, if its tube bundle is subjected to local high temperature and its wall temperature is greatly different from that of the shell, a large thermal stress will be generated between the heat exchange tube bundle and the shell, which is not good for the heat exchange tube bundle. When the shell side inlet fluid velocity is too fast or the fluid medium is a corrosive gas, an anti-collision baffle needs to be set to reduce the impact of the fluid on the heat exchange tube bundle. However, in some cases, it is not necessary to set an anti-collision baffle structure, such as when the fluid inlet flow rate is small or the fluid medium is non-corrosive. If an anti-collision baffle is set, it will affect the heat exchange efficiency of the condenser. Therefore, whether an anti-collision baffle is needed at the shell side inlet of the condenser should be strictly in accordance with the standard of GB / T151-2014 "Heat Exchanger". However, in the prior art, the condenser cannot take into account both anti-collision and heat exchangers that do not need anti-collision functions. Summary of the invention
[0003] Technical problems to be solved: In view of the technical problems existing in the use of condensers in the prior art, the present invention provides an alkali-making condenser with anti-impact function and an anti-impact method. The condenser adjusts the anti-impact baffle assembly to be in different working states according to the fluid working conditions, thereby meeting the requirements of anti-impact function for different fluid flow rates and improving the adaptability of the condenser.
[0004] Technical solution: The alkali-making condenser with anti-impact function described in the present invention comprises a condenser shell and a plurality of heat exchange tubes arranged along the condenser shell, a condensation shell side is formed outside the heat exchange tubes in the condenser shell, and a shell side inlet end is arranged on the side wall of the condenser shell; The inner side of the condenser shell is provided with a transmission mounting seat and an anti-collision baffle assembly at the inner end of the shell inlet; The anti-collision baffle assembly comprises a support plate frame correspondingly mounted on the transmission mounting seat, the support plate frame is slidably and telescopically connected with the anti-collision plate frame, and the anti-collision baffle is horizontally slidably connected with the anti-collision plate frame; a liquid passage matching the diameter of the shell inlet end is arranged at the center of the bottom of the support plate frame, and a plurality of anti-collision holes are opened on the anti-collision plate frame and the anti-collision baffle corresponding to the liquid passage; A flow sensor is arranged on the side wall of the condenser shell corresponding to the shell inlet end, and a drive motor and a reducer are arranged on the side wall of the condenser shell corresponding to the transmission mounting seat. The reducer is connected to the transmission mechanism arranged in the transmission mounting seat, and the transmission mechanism drives the anti-collision plate frame to open or close along the supporting plate frame and the anti-collision baffle along the anti-collision plate frame; the flow sensor is connected to the drive motor for control.
[0005] Preferably, the support plate frame includes a support base plate and first side support plates vertically arranged along both side edges of the support base plate, a limiting guide groove for sliding connection of the anti-collision plate frame is formed between the two first side support plates and the support base plate, the top end of the first side support plate is folded inward to form a limiting buckle edge, and limiting blocks are relatively arranged on the inner sides of one end of the two first side support plates; the liquid passage is correspondingly arranged in the center of the support base plate.
[0006] Preferably, the anti-collision plate frame comprises an anti-collision plate body, and a plurality of first anti-collision holes are evenly distributed on the anti-collision plate body; Second side support plates are vertically arranged on both side edges of the anti-collision plate body, and the width of the outer walls of the two second side support plates is smaller than the distance between the inner walls of the two first side support plates; a snap-in step is arranged on the outer side of the second side support plate along its length direction, and the anti-collision plate frame is slidably connected in the support plate frame and the limiting buckle edge is correspondingly snapped on the snap-in step.
[0007] Preferably, the inner walls of the two second side support plates are layered with a plurality of limiting slide grooves along their length direction, one end of the limiting slide groove is an open end for the anti-collision baffle to be inserted, and the other end of the limiting slide groove is a closed end.
[0008] Preferably, the anti-collision baffle includes a plurality of arc-shaped guide protrusions arranged along its width direction, and the arc-shaped guide protrusions divide the anti-collision baffle into a plurality of partitions, and a plurality of second anti-collision holes and third anti-collision holes are evenly distributed on adjacent partition plates, and the second anti-collision holes and the third anti-collision holes are arranged vertically or parallel to each other.
[0009] Preferably, the first anti-punch hole, the second anti-punch hole and the third anti-punch hole are all U-shaped straight groove anti-punch holes with a size of R1.5×3mm.
[0010] Preferably, the transmission mechanism is a gear rack mechanism, a screw-screw mechanism or a pulley-rail mechanism.
[0011] The present invention also discloses a method for preventing impact of an alkali-making condenser, comprising the following steps: Step 1: The flow sensor monitors the fluid flow rate passing through the shell inlet end and determines whether the fluid flow rate exceeds the preset flow rate value; Step 2: When the fluid flow value monitored by the flow sensor is less than the preset value, the anti-collision plate frame and the anti-collision baffle are in a state of being separated from the supporting plate frame; Step 3: When the flow value monitored by the flow sensor is greater than the preset value, the anti-collision plate frame and the anti-collision baffle are in a closed state with the supporting plate frame.
[0012] Preferably, when the flow sensor monitors a fluid flow value that is less than a preset value, that is, the baffle assembly is in a non-working state, and the fluid at the shell side inlet end of the alkali condenser is a non-high-speed fluid, at this time, the baffle moves away from the baffle frame along the limiting slide groove, and the baffle frame moves away from the support plate frame along the support plate frame, so that the liquid passage is directly connected to the shell side inlet end, and the fluid enters from the shell side inlet end and is directly sprayed into the heat exchange tube bundle area through the liquid passage.
[0013] Preferably, when the flow sensor monitors a fluid flow value greater than a first preset value and less than a second preset value, that is, the anti-collision plate frame in the anti-collision baffle assembly is in a working state and the anti-collision baffle is in a non-working state, and the fluid at the shell side inlet end of the alkali condenser is a high-speed fluid or a corrosive fluid, at this time, the flow sensor is connected to the control mechanism to control the drive motor to start, and the drive motor drives the reducer to drive the transmission mechanism to work, driving the anti-collision plate frame along the supporting plate frame into the limiting guide groove until one end of the anti-collision plate frame abuts against the limiting block of the supporting plate frame, completing the closing of the anti-collision plate frame and the anti-collision baffle along the limiting slide groove away from the anti-collision plate frame in a non-working state, and the anti-collision plate body of the anti-collision plate frame provides a first-level anti-collision working condition for the fluid entering from the shell side inlet end through its first anti-collision hole; When the flow sensor monitors a fluid flow value greater than a second preset value, that is, the anti-collision plate frame and the anti-collision baffle in the anti-collision baffle assembly are in working condition, and the fluid at the shell side inlet end of the alkali condenser is an ultra-high-speed fluid. At this time, the flow sensor is connected to the control mechanism to control the drive motor to start, and the drive motor drives the reducer to drive the transmission mechanism to work. When the anti-collision plate frame and the supporting plate frame are in a closed state, the anti-collision baffle continues to be driven along the limiting slide groove of the anti-collision baffle until one end of the anti-collision baffle hits the closed end of the limiting slide groove, completing the closure of the anti-collision baffle and the anti-collision plate frame. The anti-collision plate body of the anti-collision baffle and the anti-collision plate frame cooperates through its first anti-collision hole, the second anti-collision hole and the third anti-collision hole to provide a secondary anti-collision working condition for the fluid entering from the shell side inlet end.
[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The condenser of the present invention adjusts the anti-collision baffle assembly to be in different working states according to the fluid working conditions, thereby meeting the requirements of different fluid flow rates for the anti-collision function and improving the adaptability of the condenser.
[0015] The present invention also has other beneficial effects which are described in the embodiments of the specification and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view of the structure of the alkali-making condenser of the present invention; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the middle anti-collision baffle assembly from the first perspective; Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the middle anti-collision baffle assembly from a second viewing angle; Figure 4 for Figure 2 Schematic diagram of the three-dimensional structure of the middle support plate frame; Figure 5 for Figure 2 Schematic diagram of the three-dimensional structure of the middle anti-collision plate frame; Figure 6 for Figure 2 Schematic diagram of the three-dimensional structure of the middle anti-collision baffle.
[0017] Figure numerals: 100, alkali condenser; 1, condenser shell; 2, heat exchange tube; 3, heat exchange tube support plate; 4, anti-collision baffle assembly; 5, drive motor; 6, reducer; 7, flow sensor; 8, shell inlet end; 9, transmission mounting seat; 10, support plate frame; 101, support base plate; 102, liquid passage; 103, first side support plate; 104, limit buckle edge; 105, limit guide groove; 106, limit block; 11, anti-collision plate frame; 111, anti-collision plate body; 112, first anti-collision hole; 113, second side support plate; 114, clamping step; 115, limit slide groove; 116, closed end; 12, anti-collision baffle; 121, arc-shaped guide protrusion; 122, second anti-collision hole; 123, third anti-collision hole. DETAILED DESCRIPTION
[0018] To make the purpose, technical solutions and advantages of the present invention more clear, the following will be combined with the attached Figures 1 to 6 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.
[0019] Example 1: Figure 1As shown, the present invention discloses an alkali-making condenser with an anti-impact function. The alkali-making condenser 100 includes a condenser shell 1 and a plurality of heat exchange tubes 2 arranged along the condenser shell 1. The two ends of the condenser shell 1 are hemispherical structures. Heat exchange tube support plates 3 are respectively arranged at the connection positions of the hemispherical structures at the two ends of the condenser shell 1. The plurality of heat exchange tubes 2 are evenly connected to the two groups of heat exchange tube support plates 3, so that a condensation shell side is formed in the condenser shell 1 outside the heat exchange tube 2. The heat exchange tube 2 and the hemispherical structures at both ends are connected to form a tube side. A condensation inlet end and a condensation outlet end are connected to each hemispherical structure to meet the entry and exit of the condensate; a shell side inlet end 8 and a shell side outlet end are arranged on the side wall of the condenser shell 1 to meet the entry and exit of the fluid to be heat exchanged.
[0020] like Figures 1 to 3 As shown, the inner side of the condenser shell 1 is provided with a transmission mounting seat 9 and an anti-collision baffle assembly 4 at the inner end of the shell side inlet end 8. The anti-collision baffle assembly 4 includes a support plate frame 10 correspondingly mounted on the transmission mounting seat 9, and an anti-collision plate frame 11 is slidably and telescopically connected in the support plate frame 10, and an anti-collision baffle 12 is horizontally slidably connected in the anti-collision plate frame 11; a liquid passage 102 matching the diameter of the shell side inlet end 8 is provided at the bottom center of the support plate frame 10, and a plurality of anti-collision holes are provided on the anti-collision plate frame 11 and the anti-collision baffle 12 corresponding to the liquid passage 102. When the anti-collision plate frame 11 and the anti-collision baffle 12 are in a closed state with the support plate frame 10, the anti-collision plate frame 11 and the anti-collision baffle 12 are correspondingly arranged below the shell side inlet end 8, so as to achieve a buffering function for the incoming fluid.
[0021] Specifically, Figures 2~5As shown, the support plate frame 10 includes a support base plate 101 and first side support plates 103 vertically arranged along the two sides of the support base plate 101, a limiting guide groove 105 for sliding connection of the anti-collision plate frame 11 is formed between the two first side support plates 103 and the support base plate 101, the top of the first side support plate 103 is folded inward to form a limiting buckle edge 104, and a limiting block 106 is relatively arranged on the inner side of one end of the two first side support plates 103; the liquid passage 102 is correspondingly arranged in the center of the support base plate 101. The anti-collision plate frame 11 includes an anti-collision plate body 111, and a plurality of first anti-collision holes 112 are evenly distributed on the anti-collision plate body 111; second side support plates 113 are vertically arranged on the two sides of the anti-collision plate body 111, and the outer wall width of the two second side support plates 113 is less than the inner wall spacing of the two first side support plates 103, so that the anti-collision plate frame 11 can be slidably connected in the limiting guide groove 105 of the support plate frame 10. A snap-in step 114 is provided on the outer side of the second side support plate 113 along its length direction. The anti-collision plate frame 11 is slidably connected to the support plate frame 10 so that the limiting buckle edge 104 can be correspondingly snapped on the snap-in step 114, so that the anti-collision plate frame 11 can slide relatively along the support plate frame 10, and then the liquid passage 102 can be in a fully open state. When the anti-collision plate frame 11 slides and is in a closed state with the support plate frame 10, it is in a first-level anti-collision state.
[0022] A plurality of limiting slide grooves 115 are layered along the length direction of the inner walls of the two second side support plates 113. One end of the limiting slide groove 115 is an open end for the anti-collision baffle 12 to be inserted, and the other end of the limiting slide groove 115 is a closed end 116. Figures 5 and 6 As shown, in this embodiment, only one layer of limiting slide groove 115 is provided, and the anti-collision baffle 12 is correspondingly slidably connected in the limiting slide groove 115. When the anti-collision baffle 12 is fully inserted into the limiting slide groove 115 and is in a closed state, it is in a secondary anti-collision state.
[0023] like Figure 6As shown, the impact baffle 12 includes a plurality of arc-shaped flow-guiding protrusions 121 arranged along its width direction, and the arc-shaped flow-guiding protrusions 121 divide the impact baffle 12 into a plurality of partitions, and a plurality of second anti-collision holes 122 and third anti-collision holes 123 are evenly distributed on the adjacent partition plates, and the second anti-collision holes 122 and the third anti-collision holes 123 are arranged vertically or parallel, and the first anti-collision hole 112, the second anti-collision hole 122 and the third anti-collision hole 123 are all U-shaped straight groove anti-collision holes with a size of R1.5×3mm. The arc-shaped flow-guiding protrusions 121 can more effectively reduce the impact of high-speed fluid media on the impact baffle 12, so that the fluid velocity entering the shell side inlet tends to be moderate. The opening size of the U-shaped straight groove anti-punch hole directly affects the flow path and distribution effect of the fluid. If the hole diameter is too small, the fluid flow rate will be too high, which may cause local scouring and reduce the anti-punch efficiency; if the hole diameter is too large, the dispersion effect on the fluid will be weakened, which may cause the fluid to flow in a concentrated manner, directly impact the heat exchange tube bundle, and reduce the protection effect on the condenser tube bundle. Therefore, its size is set to R1.5×3mm.
[0024] In a preferred embodiment, Figure 6 As shown, three arc-shaped guide protrusions 121 are provided on the anti-collision baffle 12 to divide the anti-collision baffle 12 into four partitions, which are the first partition, the second partition, the third partition and the fourth partition from left to right. The first partition and the fourth partition are both provided with longitudinally distributed second anti-collision holes 122, and the second partition and the third partition are both provided with transversely distributed third anti-collision holes 123. The second anti-collision holes 122 and the third anti-collision holes 123 are arranged perpendicularly to the groove direction. The anti-collision hole arrangement is conducive to reducing the flow rate of the fluid and achieving a better anti-collision effect.
[0025] like Figure 1As shown, a flow sensor 7 is arranged on the side wall of the condenser shell 1 corresponding to the shell inlet 8. The flow sensor 7 is used to detect the fluid flow through the shell inlet 8 in real time. The flow sensor 7 is electrically connected to the control mechanism (not shown in the figure) and transmits the flow data to the control mechanism. The control inlet can use a single-chip microcomputer or chip in the prior art to realize its control function. A drive motor 5 and a reducer 6 are arranged on the side wall of the condenser shell 1 corresponding to the transmission mounting seat 9. The reducer 6 is connected to the transmission mechanism arranged in the transmission mounting seat 9. The transmission mechanism can use a gear rack mechanism, a screw thread sleeve mechanism or a pulley rail mechanism to realize the function of power transmission. Its specific transmission method can be designed according to the needs to meet the function of power transmission. The drive motor 5 and the reducer 6 cooperate with the transmission mechanism to drive the anti-collision plate frame 11 to open or close along the support plate frame 10 and the anti-collision baffle 12 along the anti-collision plate frame 11 to realize the secondary control function. Among them, the flow sensor 7 is connected to the drive motor 5 for control, that is, the flow sensor 7 transmits the fluid flow rate to the control mechanism after monitoring it. The control mechanism can issue an execution command to the drive motor 5 according to the comparison between the fluid flow rate and the preset flow rate value, thereby controlling the adjustment of the working state of the anti-collision baffle assembly 4.
[0026] Embodiment 2: The present invention also discloses a method for preventing impact of an alkali-making condenser, comprising the following steps: Step 1: The flow sensor 7 monitors the fluid flow passing through the shell inlet end 8 and determines whether the fluid flow exceeds a preset flow value. The control mechanism performs a fluid flow value determination function.
[0027] Step 2: When the fluid flow value monitored by the flow sensor 7 is less than the preset value, the anti-collision plate frame 11 and the anti-collision baffle 12 are in a state of separation from the supporting plate frame 10. In this state, the fluid at the shell side inlet end 8 of the condenser is a low-speed fluid. At this time, if the anti-collision baffle assembly 4 is in a closed state, the heat exchange efficiency of the condenser cannot be guaranteed. The anti-collision baffle assembly 4 should not participate in the anti-collision work. After the low-speed fluid enters from the shell side inlet end 8, it can be directly injected into the tube bundle area, and the impact on the heat exchange tube bundle is very small and can be ignored.
[0028] Step 3: When the flow value monitored by the flow sensor 7 is greater than the preset value, the anti-collision plate frame 11 and the anti-collision baffle 12 are in a closed state with the support plate frame 10. In this state, the high-speed fluid flows in in a vertical direction perpendicular to the heat exchange tube bundle. Because the anti-collision frame plate and the anti-collision baffle 12 are provided with a large number of flood control holes of equal specifications, the impact of the high-speed fluid medium on the anti-collision baffle 12 can be more effectively reduced, so that the fluid speed entering the shell inlet tends to be moderate, and most of the fluid continues to be injected into the heat exchange tube bundle area in the vertical direction at a slower speed through the anti-collision holes on the anti-collision frame plate and the anti-collision baffle 12 to participate in heat exchange, which can not only effectively protect the heat exchange tube 2, but also fully guarantee the heat exchange efficiency of the condenser.
[0029] Example 3: Based on Example 1 and Example 2, when the flow sensor 7 monitors a fluid flow value that is less than a preset value, that is, the baffle assembly 4 is in a non-working state, and the fluid at the shell inlet end 8 of the alkali condenser is a low-speed fluid, at this time, the baffle 12 moves away from the baffle frame 11 along the limiting slide groove 115, and the baffle frame 11 moves away from the support plate frame 10 along the support plate frame 10, so that the liquid passage 102 is directly connected to the shell inlet end 8, and the fluid enters from the shell inlet end 8 and is directly sprayed into the heat exchange tube bundle area through the liquid passage 102.
[0030] Embodiment 4: Based on Embodiment 1 and Embodiment 2, when the flow sensor 7 monitors a fluid flow value greater than a first preset value and less than a second preset value, that is, the anti-collision plate frame 11 in the anti-collision baffle assembly 4 is in a working state and the anti-collision baffle 12 is in a non-working state, the fluid at the shell side inlet end 8 of the alkali condenser is a high-speed fluid. At this time, the flow sensor 7 controls the drive motor 5 to start through the control mechanism, and the drive motor 5 drives the reducer 6 to drive the transmission mechanism to work, driving the anti-collision plate frame 11 along the support plate frame 10 into the limiting guide groove 105 until one end of the anti-collision plate frame 11 abuts against the limiting block 106 of the support plate frame 10, completing the closing of the anti-collision plate frame 11 and the anti-collision baffle 12 away from the anti-collision plate frame 11 along the limiting slide groove 115 and is in a non-working state. The anti-collision plate body 111 of the anti-collision plate frame 11 provides a first-level anti-collision working condition for the fluid entering from the shell side inlet end 8 through its first anti-collision hole 112.
[0031] Embodiment 5: Based on Embodiment 1, Embodiment 2 and Embodiment 4, when the flow sensor 7 monitors the fluid flow value greater than the second preset value, that is, the anti-collision plate frame 11 and the anti-collision baffle 12 in the anti-collision baffle assembly 4 are both in working condition, and the fluid at the shell side inlet end 8 of the alkali condenser is an ultra-high-speed fluid. At this time, the flow sensor 7 is connected to the control mechanism to control the drive motor 5 to start, and the drive motor 5 drives the reducer 6 to drive the transmission mechanism to work. When the anti-collision plate frame 11 and the support plate frame 10 are in a closed state, the anti-collision baffle 12 continues to be driven along the limiting slide groove 115 of the anti-collision baffle 12 until one end of the anti-collision baffle 12 hits the closed end 116 of the limiting slide groove 115, completing the closing of the anti-collision baffle 12 and the anti-collision plate frame 11. The anti-collision plate body 111 of the anti-collision baffle 12 and the anti-collision plate frame 11 cooperates through its first anti-collision hole 112, the second anti-collision hole 122 and the third anti-collision hole 123 to provide a secondary anti-collision working condition for the fluid entering from the shell side inlet end 8.
[0032] Example 6: Based on Examples 1 to 5, taking into account the corrosive properties of some fluids and the influence of the flow rate of the superimposed fluid, the first-level anti-shock condition corresponding to Example 4 is executed, that is, when the fluid has corrosive properties, its flow rate is less than the first preset value and the first-level anti-shock condition is executed, and when the fluid flow rate is higher than the first preset value, the second-level anti-shock condition is executed.
[0033] Based on Examples 1 to 6, taking the cooler of the alkali making process as an example, the shell side inlet end 8 is the steam ammonia inlet, the pipe diameter D of the shell side inlet end 8 is 1020 mm, and the relevant data are obtained to obtain the ammonia pressure P=-0.01MPa=1000Pa, the ammonia temperature T=80°C=353.15k, and the ideal gas equation is used to calculate the density of ammonia: PV=nRT→ρ=P / RT, and the density of ammonia is calculated to be ρ=1.048kg / m 3 , where: P is the gas pressure / Pa; R is the gas constant, the gas constant of ammonia is R=0.0821L•atm / mol•K; T is the temperature / K. The gas flow rate is calculated using the formula: V=Q / A, and the ammonia flow rate V=12.2m / s can be obtained, where: A is the area of the 8 pipe at the shell inlet end, A=π×(D / 2) 2 , D is the inner diameter of the pipeline; Q is the gas flow rate. Since the ammonia flow rate is affected by factors such as temperature and pressure, the velocity parameter of the flow sensor 7 is 12 m / s as the first preset value and 15 m / s as the second preset value. Ammonia itself has a corrosive nature. When the ammonia flow rate V is less than 12 m / s, the anti-collision plate frame 11 is received in the support plate frame 10 in the first-level anti-collision working condition; when the ammonia flow rate V is greater than 12 m / s, the anti-collision baffle 12 continues to be received in the flood control plate frame in the second-level anti-collision working condition.
[0034] When the fluid is liquid, the flow data measured by the flow sensor can be used as a comparison parameter without converting it into a speed parameter for comparison.
[0035] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A alkali-making condenser with anti-impact function, characterized in that: The alkali production condenser (100) comprises a condenser shell (1) and a plurality of heat exchange tubes (2) arranged along the condenser shell (1); a condensation shell side is formed outside the heat exchange tubes (2) in the condenser shell (1); and a shell side inlet end (8) is provided on a side wall of the condenser shell (1); A transmission mounting seat (9) and an impact baffle assembly (4) are provided on the inner side of the condenser shell (1) at the inner end of the shell inlet end (8); The anti-collision baffle assembly (4) comprises a support plate frame (10) correspondingly mounted on a transmission mounting seat (9), an anti-collision plate frame (11) being slidably and telescopically connected inside the support plate frame (10), and an anti-collision baffle (12) being horizontally and slidably connected inside the anti-collision plate frame (11); a liquid passage (102) having a diameter matching that of the shell side inlet end (8) is provided at the center of the bottom of the support plate frame (10), and a plurality of anti-collision holes are provided on the anti-collision plate frame (11) and the anti-collision baffle (12) corresponding to the liquid passage (102); A flow sensor (7) is provided on the side wall of the condenser shell (1) corresponding to the shell side inlet end (8), and a drive motor (5) and a reducer (6) are provided on the side wall of the condenser shell (1) corresponding to the transmission mounting seat (9), the reducer (6) being connected to a transmission mechanism provided in the transmission mounting seat (9), and the transmission mechanism driving the anti-collision plate frame (11) to open or close along the support plate frame (10) and the anti-collision baffle (12) along the anti-collision plate frame (11); the flow sensor (7) is connected to the drive motor (5) for control.
2. The alkali-making condenser with anti-impact function according to claim 1, characterized in that: The support plate frame (10) comprises a support base plate (101) and first side support plates (103) vertically arranged along two side edges of the support base plate (101); a limiting guide groove (105) for sliding connection of the anti-collision plate frame (11) is formed between the two first side support plates (103) and the support base plate (101); the top ends of the first side support plates (103) are folded inwards to form a limiting buckle edge (104); and limiting blocks (106) are arranged on the inner sides of one end of the two first side support plates (103) in a relative manner; the liquid passage (102) is correspondingly arranged at the center of the support base plate (101).
3. The alkali-making condenser with anti-impact function according to claim 2, characterized in that: The anti-collision plate frame (11) comprises an anti-collision plate body (111), and a plurality of first anti-collision holes (112) are evenly distributed on the anti-collision plate body (111); Second side support plates (113) are respectively arranged vertically on both side edges of the anti-collision plate body (111), and the width of the outer walls of the two second side support plates (113) is smaller than the distance between the inner walls of the two first side support plates (103); a snap-fitting step (114) is arranged on the outer side of the second side support plate (113) along its length direction, and the anti-collision plate frame (11) is slidably connected in the support plate frame (10) so that the limiting buckle edge (104) is correspondingly buckled on the snap-fitting step (114).
4. The alkali-making condenser with anti-impact function according to claim 3, characterized in that: The inner walls of the two second side support plates (113) are provided with a plurality of limiting slide grooves (115) in layers along the length direction thereof, one end of the limiting slide groove (115) is an open end for the anti-collision baffle plate (12) to be inserted, and the other end of the limiting slide groove (115) is a closed end (116).
5. The alkali-making condenser with anti-impact function according to claim 4, characterized in that: The anti-collision baffle (12) comprises a plurality of arc-shaped flow-guiding protrusions (121) arranged along its width direction, the arc-shaped flow-guiding protrusions (121) divide the anti-collision baffle (12) into a plurality of partitions, and a plurality of second anti-collision holes (122) and third anti-collision holes (123) are evenly distributed on adjacent partition plates, and the second anti-collision holes (122) and the third anti-collision holes (123) are arranged vertically or parallel to each other.
6. The alkali-making condenser with anti-impact function according to claim 5, characterized in that: The first anti-punch hole (112), the second anti-punch hole (122) and the third anti-punch hole (123) are all U-shaped straight groove anti-punch holes with a size of R1.5×3 mm.
7. The alkali-making condenser with anti-impact function according to claim 6, characterized in that: The transmission mechanism is a gear rack mechanism, a screw rod and screw sleeve mechanism or a pulley and slide rail mechanism.
8. A method for preventing impact of an alkali condenser, characterized in that: The anti-collision baffle assembly (4) according to claim 7 comprises the following steps: Step 1: The flow sensor (7) monitors the fluid flow rate passing through the shell inlet end (8) and determines whether the fluid flow rate exceeds a preset flow rate value; Step 2: When the fluid flow value monitored by the flow sensor (7) is less than a preset value, the anti-collision plate frame (11) and the anti-collision baffle (12) are in a state of being separated from the supporting plate frame (10); Step 3: When the flow value monitored by the flow sensor (7) is greater than a preset value, the anti-collision plate frame (11) and the anti-collision baffle (12) are in a closed state with the supporting plate frame (10).
9. The anti-impact method for the alkali condenser according to claim 8, characterized in that: When the fluid flow value monitored by the flow sensor (7) is less than a preset value, that is, the anti-collision baffle assembly (4) is in a non-operating state, and the fluid at the shell-side inlet end (8) of the alkali condenser is a non-high-speed fluid, the anti-collision baffle (12) moves away from the anti-collision plate frame (11) along the limiting slide groove (115), and the anti-collision plate frame (11) moves away from the support plate frame (10) along the support plate frame (10), so that the liquid passage (102) is directly connected to the shell-side inlet end (8), and the fluid enters from the shell-side inlet end (8) and is directly sprayed into the heat exchange tube bundle area through the liquid passage (102).
10. The anti-impact method for the alkali condenser according to claim 8, characterized in that: When the fluid flow value monitored by the flow sensor (7) is greater than the first preset value and less than the second preset value, that is, the anti-collision plate frame (11) in the anti-collision plate assembly (4) is in a working state and the anti-collision plate (12) is in a non-working state, and the fluid at the shell side inlet end (8) of the alkali condenser is a high-speed fluid or a corrosive fluid, the flow sensor (7) is connected to the control mechanism to control the drive motor (5) to start, and the drive motor (5) drives the reducer (6) to drive the transmission mechanism to work, and drives the anti-collision plate frame (11) to start. ) along the support plate frame (10) into the limiting guide groove (105) until one end of the anti-collision plate frame (11) contacts the limiting block (106) of the support plate frame (10), completing the closing of the anti-collision plate frame (11) and the anti-collision plate frame (11), while the anti-collision baffle (12) moves away from the anti-collision plate frame (11) along the limiting slide groove (115) and is in a non-working state, and the anti-collision plate body (111) of the anti-collision plate frame (11) provides a first-level anti-collision working condition for the fluid entering from the shell side inlet end (8) through its first anti-collision hole (112); When the fluid flow value monitored by the flow sensor (7) is greater than a second preset value, that is, the anti-collision plate frame (11) and the anti-collision baffle (12) in the anti-collision baffle assembly (4) are both in the working state, and the fluid at the shell side inlet end (8) of the alkali condenser is an ultra-high-speed fluid, the flow sensor (7) is connected to the control mechanism to control the drive motor (5) to start, and the drive motor (5) drives the reducer (6) to drive the transmission mechanism to work. When the anti-collision plate frame (11) and the support plate frame (10) are in the closed state, the anti-collision plate frame (11) and the support plate frame (10) continue to drive the anti-collision plate frame (11). The impact baffle (12) enters along the limiting slide groove (115) of the impact baffle (12) until one end of the impact baffle (12) contacts the closed end (116) of the limiting slide groove (115), thereby completing the closing of the impact baffle (12) and the impact plate frame (11). The impact baffle (12) and the impact plate body (111) of the impact baffle frame (11) cooperate through the first impact hole (112), the second impact hole (122) and the third impact hole (123) to provide a secondary impact protection condition for the fluid entering from the shell inlet end (8).