CN114392578A

CN114392578A - Boiler condensate water recovery equipment

Info

Publication number: CN114392578A
Application number: CN202210131799.2A
Authority: CN
Inventors: 马传钊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-04-26

Abstract

The invention belongs to the field of condensate water recovery, and particularly relates to boiler condensate water recovery equipment which comprises a box body, wherein a shell is fixedly arranged on the side edge of the box body, a condensation pipeline network is fixedly arranged in the box body, a condensation net inlet pipe and a condensation net outlet pipe are arranged at the joint of the shell and the box body, a decompression chamber is fixedly arranged in the shell close to the condensation net inlet pipe, a flow limiting block is arranged in the decompression chamber in a vertically sliding mode, a liquid outlet pipe is connected onto the condensation net outlet pipe, an induction shell is sleeved outside the liquid outlet pipe, a movable plate is arranged in the induction shell in a sliding mode, a heat-sensitive expansion object is filled between the movable plate and the induction shell, the movable plate is pushed to move downwards by the heat-sensitive expansion object in the induction shell, the distance between the connecting rod and the decompression chamber is increased through transmission, and the throughput of condensate is improved.

Description

Boiler condensate water recovery equipment

Technical Field

The invention belongs to the field of condensate water recovery, and particularly relates to boiler condensate water recovery equipment.

Background

Condensation water: refers to the liquid water formed by the condensation process of water vapor (i.e. gaseous water), i.e. the condensed water.

The condensate water recoverer is used for recovering condensate water generated in various steam-water heat exchangers or production process flows. The condensed water is high quality water and it contains a large amount of heat energy, so that the recovery of the condensed water in the steam heating system is one of the important measures for saving energy and water.

The following problems exist in the prior art: in the process of recovering the condensed water, the heat of the steam generated by the boiler varies, and no device capable of coping with the heat change exists, so that the condensed water is easily overheated or overcooled during recovery.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides boiler condensate water recovery equipment capable of dynamically adjusting and recovering boiler condensate water.

In order to achieve the purpose, the invention adopts the following technical scheme:

a boiler condensate water recovery device comprises a box body, wherein a shell is fixedly arranged on the side edge of the box body, a condensation pipeline network is fixedly arranged in the box body, a condensation net inlet pipe and a condensation net outlet pipe are arranged at the joint of the shell and the box body, a decompression chamber is fixedly arranged in the shell close to the condensation net inlet pipe, a current limiting block is arranged in the decompression chamber in a vertical sliding manner, a gap is reserved between the current limiting block and the decompression chamber, a clinging inclined sector is arranged between the current limiting block and the decompression chamber at the lower edge, a liquid outlet pipe is connected onto the condensation net outlet pipe, an induction shell is sleeved outside the liquid outlet pipe, a movable plate is arranged in the induction shell in a sliding manner, a thermosensitive expansion object is filled between the movable plate and the induction shell, a pneumatic connecting pipe is connected below the induction shell, a pneumatic piston cylinder is fixedly arranged on the decompression chamber, a pneumatic piston is arranged in the pneumatic piston cylinder in a sliding manner, and a connecting rod is fixedly arranged below the pneumatic piston, the flow limiting block is fixedly connected below the connecting rod.

The heat-sensitive dilatant in the induction shell is heated to expand to push the moving plate to move downwards, and the distance between the connecting rod and the decompression chamber is increased through transmission, so that the throughput of condensate is improved.

Preferably, the bottom of the shell is fixedly provided with a connecting water pipe which is communicated with the water collecting tank and the drain pipe, and a condensate inlet pipe and a condensate outlet pipe are arranged in the pipeline outer sleeve.

Preferably, the decompression chamber sets firmly on the casing, it has two upper and lower cavitys, downside to open on the decompression chamber the cavity advances the pipe with the condensate and links to each other, the upside the cavity advances the pipe through the condensation net and links to each other with the condensation duct network, it is equipped with the restriction piece to slide between the upper and lower cavity, the gap is left with the decompression chamber contactless that forms the cavity to the restriction piece, restriction piece lower extreme is the cone, the upside the fixed plate has set firmly in the cavity, the mounting panel has set firmly on the restriction piece, be equipped with the mounting panel spring between mounting panel and the fixed plate.

Preferably, a piston cylinder is fixedly arranged on the shell, one side, close to the box body, of the piston cylinder is connected with a condensation pipeline network through a liquid outlet pipe, one side, close to the shell, of the lower end of the piston cylinder is connected with a condensate outlet pipe, a fixed mounting plate is fixedly arranged in the piston cylinder, two check valves in opposite directions are arranged on the fixed mounting plate and used for ensuring that condensate flows out through the condensate outlet pipe after entering the piston cylinder from the liquid outlet pipe, a motor is fixedly arranged on the shell on the upper side of the piston cylinder, a power shaft extends out of the motor in a rotating mode, a rotary disc is fixedly arranged at the other end of the power shaft, a connecting pin is rotatably arranged at the eccentric position of the rotary disc, a connecting rod is fixedly arranged on the connecting pin, and the connecting rod is hinged to the piston.

Preferably, a pull rod is arranged in the flow limiting block in a sliding mode, the lower end of the pull rod is fixedly connected with a sliding column which slides in the flow limiting block, a channel is formed in the sliding column in a pinching mode, a small hole communicated with the channel is formed in the upper end of the sliding column, a connecting cavity is formed in the flow limiting block on the side edge of the lower end of the channel, a hollow groove is formed in the lower end of the sliding column, the channel is communicated with the connecting cavity, and the hollow groove is not communicated with the connecting cavity in the initial state.

Preferably, a condensation pipeline network is fixedly arranged in the middle of the box body and is a single pipeline coiled network formed by connecting U-shaped pipes, the condensation pipeline network is used for recovering moisture in steam conducted by the air inlet chimney, a water collecting tank is fixedly arranged at the bottom of the box body below the condensation pipeline network and is used for collecting condensed water flowing down from the condensation pipeline network

Preferably, a condensation cap is fixedly arranged in the box body, the upper side of the condensation cap is arched, and the condensation cap can guide the condensed water dropping from the condensation pipeline net to the water collecting tank.

Preferably, the lower end of the pneumatic connecting pipe is connected with a pneumatic piston cylinder fixedly connected to the decompression chamber, a pneumatic piston is arranged in the pneumatic piston cylinder in a sliding mode, the upper end of the flow limiting block is fixedly connected to the pneumatic piston, a baffle is fixedly arranged at the upper end of the pull rod, a baffle spring is arranged between the baffle and the pneumatic piston, and a jacking block is fixedly arranged on the pneumatic piston cylinder below the baffle.

Has the advantages that:

1. according to the invention, after the gas from the gas inlet chimney 13 passes through the condensation pipeline network, the moisture in the gas is condensed and falls onto the condensation cap, and the design that the middle of the condensation cap is high and the two sides are low enables the condensed water to flow to the two sides along the upper end of the condensation cap and then flow into the water collection tank, and the condensed water flows to other places for recycling after flowing into the water collection tank through the transmission of the connecting water pipe and the drain pipe, so that the water which is not utilized in the boiler can be effectively collected.

2. When the condensation pipeline network begins to condense, the connecting rod luffing motion, the connecting rod drives the piston and slides from top to bottom in the piston cylinder, the piston slides from top to bottom and takes the condensate out of the condensation pipeline network and gets into in the cavity that the baffle is close to drain pipe one side behind the drain pipe, at last through condensate exit tube eduction gear, get into other places and carry out the recycle of waste heat, when the piston discharges the condensate pressurization, the condensate after the condensation pipeline network heating has been heated because pressure increases once more, increase the utilization ratio of waste heat.

3. The in-process that flows to the piston cylinder after the condensate completely flows through the condensation pipeline net can be through the response casing of cover in the drain pipe outside, if condensate backward flow temperature risees, high temperature makes the thermal sensitive inflation thing inflation in the response casing, the inflation thing promotes the movable plate and moves down, the hydraulic oil that the movable plate promoted the below gets into in the pneumatic piston cylinder through pneumatic connecting pipe, promote pneumatic piston downstream, pneumatic piston promotes the connecting rod and removes, the connecting rod drives the mounting panel and removes and compress the mounting panel spring, the connecting rod moves down and makes the conical body of current-limiting block downside keep away from the decompression chamber, can vacate more spaces and let more coolant liquids get into the condensation pipeline net, reduce the temperature of condensation pipeline net, make equipment can adjust the power of condensation effect according to the change of temperature like this, avoid equipment overheated or the temperature to hang down.

4. If it is still not enough after the preliminary lapse of current-limiting piece, drain pipe department temperature is still not low enough, because the current-limiting piece continues to move down the volume that the space of release can not increase the condensate that gets into the condensation pipeline net in a large number, lead to the condensation effect to reduce, filler in the response casing can continue the inflation under the influence of high temperature, it shifts up to drive the slip post, make the dead slot begin to align with the connection chamber, the temperature that the response bag received is higher, the dead slot is also big more with the intercommunication department of connecting the chamber, the condensate can pass through the dead slot, get into the condensation pipeline net behind the aperture release pressure behind connection chamber and the passageway, the entering volume of condensate has been increased, the condensation efficiency is improved.

Drawings

FIG. 1 is a perspective view of a solid of the present invention

FIG. 2 is a top view of the present invention

FIG. 3 is a sectional view taken along line A-A in FIG. 2

FIG. 4 is a partial enlarged view of the portion B in FIG. 3

FIG. 5 is a partial enlarged view of the portion C in FIG. 3

FIG. 6 is an enlarged view of a portion of FIG. 4 at D

In the figure: 11. a box body; 12. a housing; 13. an air intake chimney; 14. an air outlet chimney; 15. a drain pipe; 16. coating the pipeline with a jacket; 17. a condensate control module; 18. a backflow power module; 19. a secondary adjustment module; 20. condensing the network of pipes; 21. a secondary control module; 22. a water collection tank; 23. connecting a water pipe; 24. feeding condensate into a pipe; 25. a condensate outlet pipe; 26. a condensing net inlet pipe; 27. a decompression chamber; 28. a fixing plate; 29. mounting a plate; 30. a mounting plate spring; 31. a flow-restricting lever; 32. a pull rod; 33. a pneumatic piston; 34. a top block; 35. a baffle plate; 36. a baffle spring; 37. a pneumatic piston cylinder; 38. a pneumatic connecting pipe; 39. a sliding post; 40. a channel; 41. a connecting cavity; 42. a small hole; 43. an empty groove; 44. an induction bag; 45. a motor; 46. a piston cylinder; 47. a power shaft; 48. a turntable; 49. a connecting pin; 50. a connecting rod; 51. a liquid outlet pipe; 52. a piston; 53. fixing the mounting plate; 54. a partition plate; 55. a one-way valve;

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Referring to the attached drawings 1-6, a boiler condensate water recovery device comprises a box body 11, a shell 12 is fixedly arranged on the side of the box body 11, a condensation pipeline network 20 is fixedly arranged in the box body 11, a condensation net inlet pipe 26 and a condensation net outlet pipe 58 are arranged at the joint of the shell 12 and the box body 11, a decompression chamber 27 is fixedly arranged in the shell 12 close to the condensation net inlet pipe 26, a current limiting block 31 is arranged in the decompression chamber 27 in a vertical sliding manner, a gap is reserved between the current limiting block 31 and the decompression chamber 27, a clinging inclined sector is arranged between the current limiting block 31 at the lower edge and the decompression chamber 27, a liquid outlet pipe 51 is connected onto the condensation net outlet pipe 58, an induction shell 44 is sleeved outside the liquid outlet pipe 51, a movable plate 56 is arranged in the induction shell 44 in a sliding manner, a heat-sensitive expansion object is filled between the movable plate 56 and the induction shell 44, a pneumatic connecting pipe 38 is connected below the induction shell 44, a pneumatic piston cylinder 37 is fixedly arranged on the decompression chamber 27, a pneumatic piston cylinder 33 is arranged in the pneumatic piston cylinder 37 in a sliding manner, a connecting rod 59 is fixedly arranged below the pneumatic piston 33, and the flow limiting block 31 is fixedly connected below the connecting rod 59.

The heat-sensitive dilatant in the sensing shell 44 expands when heated to push the moving plate 56 to move downwards, so that the connecting rod 59 moves to increase the distance between the connecting rod and the decompression chamber 27 through transmission, and the throughput of condensate is improved.

Furthermore, a connecting water pipe 23 is fixedly arranged at the bottom of the shell 12, the connecting water pipe 23 is communicated with the water collecting tank 22 and the water discharging pipe 15, and a condensate inlet pipe 24 and a condensate outlet pipe 25 are arranged in the pipeline outer sleeve 16.

Further, decompression chamber 27 sets firmly on casing 12, two upper and lower cavitys have been opened on decompression chamber 27, the downside cavity advances pipe 24 with the condensate and links to each other, the upside cavity advances pipe 26 and condensation duct network 20 through the condensation net and links to each other, it is equipped with current limiting block 31 to slide between the upper and lower cavity, current limiting block 31 and the decompression chamber 27 that forms the cavity contactless leave the gap, current limiting block 31 lower extreme is the cone, fixed plate 28 has set firmly in the upside cavity, set firmly mounting panel 29 on the current limiting block 31, be equipped with mounting panel spring 30 between mounting panel 29 and the fixed plate 28.

Furthermore, a piston cylinder 46 is fixedly arranged on the shell 12, one side of the piston cylinder 46, which is close to the box body 11, is connected with a condensation pipeline network 20 through a liquid outlet pipe 51, one side of the lower end of the piston cylinder 46, which is close to the shell 12, is connected with a condensation liquid outlet pipe 25, a fixed mounting plate 53 is fixedly arranged in the piston cylinder 46, two check valves 55 in opposite directions are arranged on the fixed mounting plate 53, the check valves 55 are used for ensuring that condensation liquid flows out through the condensation liquid outlet pipe 25 after entering the piston cylinder 46 from the liquid outlet pipe 51, a motor 45 is fixedly arranged on the shell 12 on the upper side of the piston cylinder 46, a power shaft 47 is rotatably extended from the motor 45, a rotary disc 48 is fixedly arranged at the other end of the power shaft 47, a connecting pin 49 is rotatably arranged at the eccentric position of the rotary disc 48, a connecting rod 50 is fixedly arranged on the connecting pin 49, and the connecting rod 50 is hinged with the piston 52.

Furthermore, a pull rod 32 is arranged in the flow limiting block 31 in a sliding mode, a sliding column 39 which slides in the flow limiting block 31 is fixedly connected to the lower end of the pull rod 32, a channel 40 is formed in the sliding column 39 in a pinching mode, a small hole 42 communicated with the channel 40 is formed in the upper end of the sliding column 39, a connecting cavity 41 is formed in the flow limiting block 31 on the side edge of the lower end of the channel 40, a hollow groove 43 is formed in the lower end of the sliding column 39, the channel 40 is communicated with the connecting cavity 41, and the hollow groove 43 is not communicated with the connecting cavity 41 in the initial state.

Furthermore, a condensation pipe network 20 is fixedly arranged in the middle of the box body 11, the condensation pipe network 20 is a single-pipe coiled network formed by connecting U-shaped pipes, the condensation pipe network 20 is used for recovering moisture in steam conducted by the air inlet chimney 13, a water collecting tank 22 is fixedly arranged at the bottom of the box body 11 below the condensation pipe network 20, the water collecting tank 22 is used for collecting condensed water flowing down from the condensation pipe network 20, a condensation cap 57 is fixedly arranged in the box body 11, the upper side of the condensation cap 57 is arched, and the condensation cap 57 can guide the condensed water dropping from the condensation pipe network 20 to the water collecting tank 22.

Furthermore, the lower end of the pneumatic connecting pipe 38 is connected with a pneumatic piston cylinder 37 fixedly connected to the decompression chamber 27, a pneumatic piston 33 is slidably arranged in the pneumatic piston cylinder 37, the upper end of the flow limiting block 31 is fixedly connected to the pneumatic piston 33, the upper end of the pull rod 32 is fixedly provided with a baffle plate 35, a baffle plate spring 36 is arranged between the baffle plate 35 and the pneumatic piston 33, and a top block 34 is fixedly arranged on the pneumatic piston cylinder 37 below the baffle plate 35.

Principle of operation

Starting the equipment, after the gas from the gas inlet chimney 13 passes through the condensing pipe network 20, the moisture in the gas is condensed and falls onto the condensing cap 57, and the design that the middle of the condensing cap 57 is high and the two sides are low enables the condensed water to flow to the two sides along the upper end of the condensing cap 57 and then flow into the water collecting tank 22, and after the condensed water flows into the water collecting tank 22, the condensed water flows to other places for recycling through the transmission of the connecting water pipe 23 and the water discharging pipe 15.

When the condensation pipe network 20 begins to condense, the motor 45 is started, the motor 45 drives the power shaft 47 to rotate, the power shaft 47 drives the turntable 48 to rotate, the turntable 48 drives the connecting pin 49 and the connecting rod 50 to swing up and down, the connecting rod 50 drives the piston 52 to slide up and down in the piston cylinder 46, the piston 52 slides up and down to pump out condensate from the condensation pipe network 20, the condensate passes through the liquid outlet pipe 51 and then enters a cavity on one side of the partition plate 54 close to the liquid outlet pipe 51, the condensate passes through the check valve 55 and then enters a space between the piston 52 and the fixed mounting plate 53, the condensate is pressed into the cavity on one side of the partition plate 54 far away from the liquid outlet pipe 51 when the piston 52 moves towards the fixed mounting plate 53, finally the condensate passes through the condensate outlet pipe 25 and is discharged out of the equipment, the condensate which has been heated by the condensation pipe network 20 is heated again due to the increase of pressure, the utilization rate of waste heat is increased, and condensate begins to flow into the equipment through the condensate inlet pipe 24 and simultaneously flows out of the equipment through the condensate outlet pipe 25.

After the condensate has been utilized the heat, advance pipe 24 via the condensate and flow into decompression chamber 27, for preventing that the condensate cooling is incomplete, the temperature is low enough to make the condensation effect of condenser pipe network 20 descend, when the gap entering decompression chamber 27 upside cavity between condensate process restriction piece 31 and the decompression chamber 27, the condensate is broken up, reduces the pressure of condensate for the temperature of condensate advances pipe 26 via the condenser net again and gets into condenser pipe network 20 after reducing fast and carry out the condensation work.

When the condensate completely flows through the condensation pipe network 20 and then flows to the piston cylinder 46, the condensate passes through the induction shell 44 sleeved on the outer side of the liquid outlet pipe 51, if the reflux temperature of the condensate rises, the high temperature causes the thermosensitive dilatant in the induction shell 44 to expand, the dilatant pushes the moving plate 56 to move downwards, the hydraulic oil pushed by the moving plate 56 downwards enters the pneumatic piston cylinder 37 through the pneumatic connecting pipe 38, the pneumatic piston 33 is pushed to move downwards, the pneumatic piston 33 pushes the connecting rod 59 to move, the connecting rod 59 drives the mounting plate 29 to move and compress the mounting plate spring 30, the connecting rod 59 moves downwards to cause the conical body on the lower side of the flow limiting block 31 to be far away from the decompression chamber 27, more gaps can be left to allow more cooling liquid to enter the condensation pipe network 20, the temperature of the condensation pipe network 20 is reduced, the strength of the condensation effect can be adjusted according to the change of the temperature, and the overheating or the over-low temperature of the equipment is avoided, after the temperature is reduced, the filler retracts, and the mounting plate spring 30 can drive the condensation pipe network 20 and the flow limiting block 31 to reset.

If the temperature of the liquid outlet pipe 51 is not low enough after the flow limiting block 31 is moved downwards initially, because the gap released by the flow limiting block 31 moving downwards continuously cannot increase the amount of the condensate entering the condensation pipe network 20 by a large amount, the condensation effect is reduced, the filler in the sensing shell 44 will expand under the influence of high temperature to drive the flow limiting block 31 to move downwards continuously, so that the baffle 35 contacts the top block 34, the baffle 35 is pushed to move upwards to compress the baffle spring 36, the baffle 35 moves to drive the pull rod 32 to move, the pull rod 32 drives the sliding column 39 to move upwards, so that the empty groove 43 is aligned with the connecting cavity 41, the higher the temperature of the sensing shell 44 is, the larger the communication position between the empty groove 43 and the connecting cavity 41 is, the condensate can pass through the empty groove 43, the connecting cavity 41 and the channel 40, and then enters the condensation pipe network 20 after the pressure is released through the small hole 42, and the entering amount of the condensate is increased, the condensation efficiency is improved, after the condensation effect is improved, when the induction shell 44 begins to reset, the baffle spring 36 drives the baffle 35 to reset, the empty groove 43 is not communicated with the connecting cavity 41, and the condensate liquid is stopped being conveyed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a boiler condensate water recovery unit, includes box (11), its characterized in that, box (11) side has set firmly casing (12), box (11) internal setting has condensation pipeline net (20), casing (12) and box (11) junction are opened and are had condensation net to advance pipe (26) and condensation net exit tube (58), be close to condensation net in casing (12) and advance pipe (26) department and have set firmly decompression chamber (27), it is equipped with current limiting block (31) to slide from top to bottom in decompression chamber (27), leave the gap between current limiting block (31) and decompression chamber (27), the lower limb the slope fan face for can laminating between current limiting block (31) and the decompression chamber (27), be connected with drain pipe (51) on condensation net exit tube (58), drain pipe (51) overcoat has response casing (44), it is equipped with movable plate (56) to slide in response casing (44), a thermosensitive swelling material is filled between the moving plate (56) and the induction shell (44), a pneumatic connecting pipe (38) is connected below the induction shell (44), a pneumatic piston cylinder (37) is fixedly arranged on the decompression chamber (27), a pneumatic piston (33) is arranged in the pneumatic piston cylinder (37) in a sliding manner, a connecting rod (59) is fixedly arranged below the pneumatic piston (33), and the flow limiting block (31) is fixedly connected below the connecting rod (59);

the heat-sensitive dilatant in the induction shell (44) expands when heated to push the moving plate (56) to move downwards, so that the connecting rod (59) moves to increase the distance between the connecting rod and the decompression chamber (27) through transmission, and the throughput of condensate is improved.

2. The boiler condensate water recovery apparatus according to claim 1, wherein a connection water pipe (23) is fixedly arranged at the bottom of the housing (12), the connection water pipe (23) is communicated with the water collecting tank (22) and the water discharging pipe (15), and a condensate inlet pipe (24) and a condensate outlet pipe (25) are arranged in the pipe outer sleeve (16).

3. The boiler condensate water recovery device according to claim 1, wherein the decompression chamber (27) is fixedly arranged on the housing (12), the decompression chamber (27) is provided with an upper cavity and a lower cavity, the lower cavity is connected with the condensate inlet pipe (24), the upper cavity is connected with the condensate pipeline network (20) through the condensate network inlet pipe (26), the upper cavity and the lower cavity are slidably provided with the flow limiting block (31), the flow limiting block (31) and the decompression chamber (27) forming the cavity are not in contact with each other to leave a gap, the lower end of the flow limiting block (31) is a conical body, the upper cavity is fixedly provided with the fixing plate (28), the flow limiting block (31) is fixedly provided with the mounting plate (29), and the mounting plate spring (30) is arranged between the mounting plate (29) and the fixing plate (28).

4. The boiler condensate water recovery device according to claim 1, wherein the condensate control module (17) comprises a decompression chamber (27) fixedly arranged on the housing (12), the decompression chamber (27) is provided with an upper cavity and a lower cavity, the cavity on the lower side is connected with a condensate inlet pipe (24), the cavity on the upper side is connected with a condensation pipeline network (20) through a condensation network inlet pipe (26), a flow limiting rod (31) is arranged between the upper cavity and the lower cavity in a sliding manner, the flow limiting rod (31) and the decompression chamber (27) forming the cavity are not in contact with each other to leave a gap, the lower end of the flow limiting rod (31) is a conical body, a fixing plate (28) is fixedly arranged in the cavity on the upper side, a mounting plate (29) is fixedly arranged on the flow limiting rod (31), and a mounting plate spring (30) is arranged between the mounting plate (29) and the fixing plate (28).

5. The boiler condensate water recovery device according to claim 1, wherein a piston cylinder (46) is fixedly arranged on the housing (12), one side of the piston cylinder (46) close to the box body (11) is connected with the condensation pipeline network (20) through a liquid outlet pipe (51), one side of the lower end of the piston cylinder (46) close to the housing (12) is connected with a condensate outlet pipe (25), a fixed mounting plate (53) is fixedly arranged in the piston cylinder (46), two check valves (55) in opposite directions are arranged on the fixed mounting plate (53), the check valves (55) are used for ensuring that condensate enters the piston cylinder (46) from the liquid outlet pipe (51) and then flows out through the condensate outlet pipe (25), a motor (45) is fixedly arranged on the housing (12) on the upper side of the piston cylinder (46), a power shaft (47) extends in a rotating manner, and a rotating disc (48) is fixedly arranged at the other end of the power shaft (47), the eccentric part of the rotary disc (48) is rotatably provided with a connecting pin (49), a connecting rod (50) is fixedly arranged on the connecting pin (49), and the connecting rod (50) is hinged with a piston (52).

6. The boiler condensed water recovery device according to claim 1, wherein a pull rod (32) is slidably arranged in the flow limiting block (31), a sliding column (39) which slides in the flow limiting block (31) is fixedly connected to the lower end of the pull rod (32), a channel (40) is pinched by the sliding column (39), a small hole (42) communicated with the channel (40) is formed in the upper end of the sliding column (39), a connecting cavity (41) is formed in the flow limiting block (31) on the side edge of the lower end of the channel (40), a hollow groove (43) is formed in the lower end of the sliding column (39), the channel (40) is communicated with the connecting cavity (41), and the hollow groove (43) is not communicated with the connecting cavity (41) in the initial state.

7. The boiler condensate water recovery apparatus according to claim 1, wherein a condensation pipe network (20) is fixedly arranged in the middle of the box body (11), the condensation pipe network (20) is a network formed by winding a single pipe formed by connecting U-shaped pipes, the condensation pipe network (20) is used for recovering moisture in steam conducted from the air inlet chimney (13), a water collecting tank (22) is fixedly arranged at the bottom of the box body (11) below the condensation pipe network (20), the water collecting tank (22) is used for collecting condensate water flowing down from the condensation pipe network (20), a condensation cap (57) is fixedly arranged in the box body (11), the upper side of the condensation cap (57) is arched, and the condensation cap (57) can guide the condensate water dropping from the condensation pipe network (20) to the water collecting tank (22).

8. The boiler condensate water recovery device according to claim 6, wherein the lower end of the pneumatic connecting pipe (38) is connected with a pneumatic piston cylinder (37) fixedly connected to the decompression chamber (27), a pneumatic piston (33) is slidably arranged in the pneumatic piston cylinder (37), the upper end of the flow limiting block (31) is fixedly connected to the pneumatic piston (33), a baffle (35) is fixedly arranged at the upper end of the pull rod (32), a baffle spring (36) is arranged between the baffle (35) and the pneumatic piston (33), and a top block (34) is fixedly arranged on the pneumatic piston cylinder (37) below the baffle (35).