Denitration diffusion steam recycling device

Abstract

The present application belongs to the field of energy saving and environmental protection technology, in particular to a denitration diffusion steam recycling device, which comprises a liquid ammonia evaporator, further comprises: a diffusion pipe fixedly connected to the liquid ammonia evaporator, the diffusion pipe is used for discharging condensed liquid; a water pipe fixedly connected to one end of the diffusion pipe, a booster pump is installed on the water pipe, a temperature detector is arranged in the water pipe, and the water pipe is used for transporting condensed liquid; and a desulfurization slurry tank fixedly connected to one end of the diffusion pipe, an alarm is fixedly installed on the desulfurization slurry tank, and the output end of the temperature detector is connected with the alarm; by arranging the water pipe, the condensed water is discharged into the desulfurization slurry tank, the temperature of the mixed slurry is increased, the dissolution and mixing of the desulfurizer in hot water are accelerated, the water consumption in the circulating slurry tank is reduced, the condensed water discharged is input into the mixed slurry tank, and the water consumption is saved.

Description

Technical Field

[0001] The invention belongs to the field of energy conservation and environmental protection, and specifically relates to a denitration and emission steam recovery and utilization device. Background Art

[0002] During the denitration process, high-temperature steam and liquid ammonia are introduced into the liquid ammonia evaporator. The liquid ammonia evaporator uses steam to heat the liquid ammonia to above 115°C to vaporize it to form ammonia gas. The ammonia gas flowing out of the liquid ammonia evaporator enters the ammonia pressure regulating tank, is reduced to a certain pressure by the pressure regulating valve, and then is sent to the system that needs denitration through the ammonia transmission pipeline.

[0003] During the process of heating ammonia water by steam in the liquid ammonia evaporator, the steam and ammonia water exchange heat. During the heat exchange process, the temperature of the steam decreases, causing the steam to condense to form condensed water. The condensed water is discharged outward under the pressure of the steam introduced into the liquid ammonia evaporator. When the condensed water is discharged, the steam is discharged along with it, resulting in a certain amount of resource waste.

[0004] To this end, the present invention provides a denitration steam recovery and utilization device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the denitration steam recovery and utilization device of the present invention includes a liquid ammonia evaporator and also includes:

[0007] A discharge pipe fixedly connected to the liquid ammonia evaporator, the discharge pipe being used to discharge condensate;

[0008] a water pipe fixedly connected to one end of the discharge pipe, a booster pump installed on the water pipe, a temperature detector provided inside the water pipe, and used for transporting condensate; and

[0009] A desulfurization slurry tank is fixedly connected to one end of the discharge pipe, an alarm is fixedly installed on the desulfurization slurry tank, and the output end of the temperature detector is connected to the alarm.

[0010] Specifically, the liquid ammonia evaporator is provided with an inlet for steam and liquid ammonia and an outlet for ammonia gas and condensate. One-way control valves are provided at both ends of the water pipe. During the denitration process, high-temperature steam and liquid ammonia are introduced into the liquid ammonia evaporator. The liquid ammonia evaporator uses steam to heat the liquid ammonia to above 115°C to vaporize it to form ammonia gas. Condensate is formed during the process of steam heating the liquid ammonia evaporator. The condensate is discharged outward through steam pressure drainage. The condensate is discharged along with the steam, resulting in a certain amount of waste. A water pipe is provided to discharge the condensate into the desulfurization slurry tank, thereby increasing the temperature of the mixed slurry and accelerating the dissolution and mixing of the desulfurizer in the hot water, reducing the water consumption in the circulating slurry tank. The discharged condensate is input into the mixed slurry tank while saving water consumption. A booster pump is provided on the water pipe to reduce the circulation time of the condensate in the water pipe and reduce heat loss. A temperature detector is also provided. When the temperature is too high, an alarm can be issued and the valves at both ends of the water pipe can be closed at the same time, thereby preventing the condensate temperature from being too high and affecting the desulfurization in the desulfurization slurry tank.

[0011] Preferably, the liquid ammonia evaporator further includes a detection unit, which includes:

[0012] A support frame fixedly mounted on the outside of the water pipe;

[0013] a plurality of pressure detectors slidably mounted on the first support frame; and

[0014] A plurality of trigger assemblies are slidably mounted on the No. 1 support frame, wherein the trigger assembly includes a No. 1 push rod, the No. 1 push rod is slidably mounted on the No. 1 support frame, and the No. 1 push rod is used to trigger the pressure detector.

[0015] Specifically, the No. 1 support frame is arranged on the outside of the water pipe and does not contact the water pipe. The No. 1 push rod does not directly contact the water pipe. The No. 1 support frame is provided with a wireless device. The wireless device adopts a portable wifi device. The output end of the pressure detector is connected to the wireless device. The liquid ammonia evaporator has an overly long heating pipe line and too many bends. The heating capacity of the steam-assisted heating pipe is insufficient. After the steam is introduced first, if the liquid ammonia is introduced, the liquid ammonia will evaporate immediately and take away a large amount of heat, causing the condensate to freeze due to a sharp drop in temperature, so that the condensate cannot be discharged normally. When there is frozen condensate in the discharge pipe, the flow area of ​​the condensate at the discharge pipe is reduced, and the condensate The flow rate of the liquid out of the discharge pipe increases, the flow rate of the condensate in the water pipe increases, the impact of the condensate on the bend of the pipe increases, the amplitude of the water pipe increases, the water pipe collides with the No. 1 push rod, and moves the No. 1 push rod toward the pressure detector. When the amplitude of the water pipe reaches the specified value, the No. 1 push rod contacts the pressure detector, causing the pressure detector to be triggered, and notifying the staff to come for maintenance through the wireless device. Due to the existence of problems such as high temperature of the pipeline transporting condensate and ammonia leakage, if the detector is installed directly on the official road, the detector is prone to damage. The above problems are avoided by setting the No. 1 push rod and the No. 1 support frame.

[0016] Preferably, the trigger component further includes:

[0017] An inclined block for pushing the first push rod, the inclined block being slidably mounted inside the first support frame;

[0018] A second push rod for pushing the inclined block, wherein the second push rod is slidably mounted inside the first support frame; and

[0019] Two oblique rod groups are slidably installed inside the No. 1 support frame, and the oblique rod group includes a No. 1 oblique rod and a No. 2 oblique rod. The No. 1 oblique rod is located between the No. 2 push rod and the oblique block, and the No. 2 oblique rod is located between the No. 1 push rod and the oblique block.

[0020] Specifically, when the water pipe collides with the No. 2 push rod for the first time, the No. 2 push rod moves toward the direction close to the No. 1 oblique rod, pushing the oblique rod to move toward the inside of the No. 1 support frame until it completely enters the inside of the No. 1 support frame. When the water pipe collides with the No. 2 push rod for the second time, the No. 2 push rod contacts the oblique block and pushes the oblique rod to move toward the direction close to the No. 1 push rod. At this time, the No. 2 oblique rod is pushed to the inside of the No. 1 support frame by the thrust of the oblique block. When the water pipe collides with the No. 2 push rod for the third time, the No. 2 push rod and the oblique block push the No. 1 push rod to move and contact the pressure detector. When the water pipe and the No. 2 push rod are not in continuous contact fast enough , the inclined rod group will return to its original position under the action of the spring force. Thereafter, the movement generated after the water pipe contacts the No. 2 push rod is the movement generated after the first collision between the water pipe and the No. 2 push rod. When only some frozen condensate is produced at the discharge pipe outlet, if this frozen condensate is washed away by the subsequent condensate, the water pipe and the No. 2 push rod only produce a small amount of collision in this process, and the pressure detector will not be triggered. If the frozen condensate is still blocked in the discharge pipe, the water pipe and the No. 2 push rod produce multiple continuous collisions in this process, and the pressure detector is triggered. The problem of false triggering is avoided by setting the inclined rod group.

[0021] Preferably, the trigger assembly further comprises a plurality of spring groups provided on the No. 1 support frame, and the spring groups comprise return springs fixedly connected to both sides of the No. 1 push rod.

[0022] Specifically, by setting a spring group, the first push rod can only contact the pressure detector when it is subjected to a specified degree of thrust.

[0023] Preferably, the liquid ammonia evaporator further includes a knocking part, and the knocking part includes:

[0024] A second support frame fixedly mounted on the outside of the discharge pipe;

[0025] a plurality of No. 1 knocking rods slidably mounted on the No. 2 support frame, the No. 1 knocking rods being used to knock the vent pipe; and

[0026] The folding rod of the first knocking rod is pushed, and one end of the folding rod away from the first knocking rod is hinged to the first supporting frame.

[0027] Specifically, when there is frozen condensate in the discharge pipe, the folding rod is pushed, and the folding rod moves to drive the first knocking rod to contact the discharge pipe and knock the discharge pipe, so that the frozen condensate in the discharge pipe falls from the pipe wall of the discharge pipe.

[0028] Preferably, the knocking part further includes:

[0029] a plurality of slideways provided on the second support frame; and

[0030] A plurality of second knocking rods are slidably arranged in the chute, and the second knocking rods are connected with the second support frame through springs, and the second knocking rods are used for knocking the liquid ammonia evaporator.

[0031] Specifically, when the frozen condensate is in the liquid ammonia evaporator, the second knocking rod is pushed to contact with the liquid ammonia evaporator and knock the liquid ammonia evaporator, so that the liquid ammonia evaporator vibrates and the frozen condensate in the liquid ammonia evaporator falls off.

[0032] Preferably, one end of each of the plurality of first knocking rods and second knocking rods is fixedly connected with a flexible ball, and one end of each of the plurality of second push rods is fixedly connected with a flexible block.

[0033] Specifically, the first knocking rod, the second knocking rod, and the second push rod directly contact with the diffuser pipe and the liquid ammonia evaporator, which causes a rigid collision and easily causes damage to the diffuser pipe and the liquid ammonia evaporator. By arranging the flexible ball and the flexible block, the above problems are avoided, and the diffuser pipe and the liquid ammonia evaporator are protected.

[0034] Preferably, the knocking part further comprises:

[0035] A sliding plate fixedly arranged between the first support frame and the second support frame;

[0036] A circular ring slidably connected to the sliding plate, and a plurality of springs are arranged between the circular ring and the second support frame;

[0037] A plurality of first connecting rods hingedly arranged on one side of the circular ring, and the other end of each of the first connecting rods is hingedly connected with the second support frame;

[0038] A Z-shaped rod fixedly connected to one side of the circular ring, and the other end of the Z-shaped rod is fixedly connected with the second knocking rod;

[0039] A plurality of square plates slidably connected to the first support frame; and

[0040] A plurality of second connecting rods hingedly arranged on one side of the circular ring, and the other end of each of the second connecting rods is connected with the square plate.

[0041] Specifically, one of the square plates is pushed upward, and the No. 2 connecting rod connected to the square plate rotates and moves, driving the ring to move in the direction close to the No. 1 support frame. When the ring moves to the specified distance, the square plate is released. At this time, the ring is moved in the direction close to the No. 2 support frame by the elastic force of the spring. The movement of the ring drives the No. 1 connecting rod to move and rotate. At this time, the folding rod is driven to move and rotate by the No. 1 connecting rod, and the folding rod moves downward, pushing the No. 1 knocking rod to knock on the discharge pipe. At the same time, the Z-shaped rod is pushed by the ring to move in the direction close to the liquid ammonia evaporator, and pushes the No. 2 knocking rod to knock on the liquid ammonia evaporator. By setting the ring, when a square plate moves, all the knocking rods knock on the discharge pipe and the liquid ammonia evaporator, the number of knocks increases, the probability of the frozen condensed water being washed away is increased, and the unblocking effect is improved.

[0042] Preferably, a plurality of electric telescopic rods are fixedly connected to the No. 1 support frame, one end of the electric telescopic rod is against one side of the square plate, a plurality of teeth are provided on the side of the square plate away from the electric telescopic rod, and a plurality of teeth are provided on the No. 1 push rod.

[0043] Specifically, when push rod No. 1 pushes the pressure detector upward, the electric telescopic rod moves, pushing the square plate toward push rod No. 1 until the square plate engages with push rod No. 1. When push rod No. 1 moves downward, it drives the square plate upward, causing the ring to move, driving knocking rod No. 1 to knock on the vent pipe, and knocking rod No. 2 to knock on the liquid ammonia evaporator. When push rod No. 1 returns to its initial position, the electric telescopic rod contracts. At this time, the square plate returns to its initial position under the tension of the ring. By setting the electric telescopic rod, the problem that the No. 1 knocking rod and the No. 2 knocking rod also work when the amplitude of the water pipe does not reach the specified value is avoided. At the same time, the problem that the No. 1 push rod cannot contact the pressure monitor due to the transmission between push rod No. 1 and the square plate when the amplitude of the water pipe reaches the specified value, causing maintenance delays, is avoided.

[0044] Preferably, a circular groove is provided on the No. 1 knocking rod, the depth of each circular groove is different, the folding rod slides in the circular groove, and the lengths of the No. 2 knocking rods are different.

[0045] Specifically, by setting circular grooves of different depths and No. 2 knocking rods of different lengths, the contact time between different folding rods and No. 1 knocking rod is different, the time when No. 1 knocking rod is pushed to knock on the vent pipe is different, and the contact time between No. 2 knocking rod and the liquid ammonia evaporator is different, thereby avoiding the problem of excessive force of knocking at the same time and causing damage to the vent pipe and the liquid ammonia evaporator.

[0046] The beneficial effects of the present invention are as follows:

[0047] 1. The denitrification steam recovery and utilization device of the present invention is provided with a water pipe to discharge the condensed water into the desulfurization slurry tank, thereby increasing the temperature of the mixed slurry to accelerate the dissolution and mixing of the desulfurizer in the hot water, reducing the water consumption in the circulating slurry tank, and inputting the discharged condensed water into the mixed slurry tank to save water.

[0048] 2. The denitrification steam recovery and utilization device of the present invention is provided with a detection part. When the liquid ammonia evaporates immediately and takes away a large amount of heat, causing the condensate to freeze due to a sharp drop in temperature, the amplitude of the water pipe increases, the No. 1 push rod contacts the pressure detector, so that the pressure detector is triggered, and the staff is notified through the wireless device to come for maintenance. At the same time, the pressure detector is installed on the No. 1 support frame, and the No. 1 support frame does not contact the water pipe, avoiding the problem of damage to the detector directly installed on the official road due to problems such as excessive temperature of the pipeline transporting the condensate and ammonia leakage.

[0049] 3. The denitrification and emission steam recovery and utilization device described in the present invention, by providing an inclined rod group, ensures that the No. 1 push rod does not come into contact with the pressure detector during the process of the frozen condensate being washed away by the subsequently generated condensate, thereby avoiding the problem of accidental touch.

[0050] 4. The denitrification steam recovery and utilization device described in the present invention is provided with a No. 1 knocking rod and a No. 2 knocking rod, so that the condensate condensed on the pipeline is shaken off, which has the effect of clearing the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention will be further described below with reference to the accompanying drawings.

[0052] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0053] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0054] Figure 3 It is a structural schematic diagram of the detection unit of the present invention;

[0055] Figure 4 It is a structural diagram of the trigger component of the present invention;

[0056] Figure 5 is a cross-sectional view of the first support frame of the present invention;

[0057] Figure 6 yes Figure 3 A partial enlarged view of point B in the middle;

[0058] Figure 7 It is a structural schematic diagram of the second support frame of the present invention;

[0059] Figure 81 is a schematic structural diagram of a first knocking rod and a second knocking rod of the present invention;

[0060] In the figure: 1. Liquid ammonia evaporator; 11. Vent pipe; 2. Water pipe; 21. Booster pump; 3. Desulfurization slurry tank; 31. Alarm; 41. Support frame No. 1; 42. Pressure detector; 43. Trigger assembly; 431. Push rod No. 1; 432. Push rod No. 2; 4321. Flexible block; 433. Oblique block; 434. Oblique rod No. 1; 435. Return spring; 436. Oblique rod No. 2; 51. Support frame No. 2; 52. Knocking rod No. 1; 521. Circular groove; 53. Folding rod; 54. Knocking rod No. 2; 55. Slide; 56. Flexible ball; 57. Slide plate; 58. Ring; 59. Connecting rod No. 1; 510. Connecting rod No. 2; 511. Z-shaped rod; 512. Square plate; 513. Electric telescopic rod. DETAILED DESCRIPTION

[0061] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0062] like Figure 1-8 As shown, the denitration steam recovery and utilization device according to the embodiment of the present invention includes a liquid ammonia evaporator 1 and further includes:

[0063] A discharge pipe 11 fixedly connected to the liquid ammonia evaporator 1, wherein the discharge pipe 11 is used to discharge condensate;

[0064] A water pipe 2 fixedly connected to one end of the discharge pipe 11, a booster pump 21 is installed on the water pipe 2, a temperature detector is provided in the water pipe 2, and the water pipe 2 is used to transport condensate; and

[0065] A desulfurization slurry tank 3 is fixedly connected to one end of the vent pipe 11 , an alarm 31 is fixedly installed on the desulfurization slurry tank 3 , and an output end of the temperature detector is connected to the alarm 31 .

[0066] Specifically, the liquid ammonia evaporator 1 is provided with an inlet for steam and liquid ammonia and an outlet for ammonia gas and condensate. One-way control valves are provided at both ends of the water pipe 2. During the denitration process, high-temperature steam and liquid ammonia are introduced into the liquid ammonia evaporator 1. The liquid ammonia evaporator 1 uses steam to heat the liquid ammonia to above 115°C to gasify it to form ammonia gas. Condensed water is formed during the process of steam heating the liquid ammonia evaporator 1. The condensed water is discharged outwards through steam pressure drainage. The condensed water is discharged outwards along with the steam, which causes a certain amount of waste. By setting up the water pipe 2, the condensed water is discharged outwards. It is placed in the desulfurization slurry tank 3, the temperature of the mixed slurry is increased to accelerate the dissolution and mixing of the desulfurizer in the hot water, and the water consumption in the circulating slurry tank is reduced. The discharged condensed water is input into the mixed slurry tank and water consumption is saved at the same time. A booster pump 21 is set on the water pipe 2 to reduce the circulation time of the condensed water in the water pipe 2 and reduce heat loss. At the same time, a temperature detector is set. When the temperature is too high, an alarm can be issued and the valves at both ends of the water pipe 2 can be closed at the same time to avoid the condensed water temperature being too high and affecting the desulfurization in the desulfurization slurry tank 3.

[0067] like Figure 3 As shown, the liquid ammonia evaporator 1 further includes a detection unit, which includes:

[0068] A support frame 41 fixedly mounted on the outside of the water pipe 2;

[0069] a plurality of pressure detectors 42 slidably mounted on the first support frame 41; and

[0070] A plurality of trigger assemblies 43 are slidably mounted on the No. 1 support frame 41 . The trigger assemblies 43 include a No. 1 push rod 431 . The No. 1 push rod 431 is slidably mounted on the No. 1 support frame 41 . The No. 1 push rod 431 is used to trigger the pressure detector 42 .

[0071] Specifically, the No. 1 support frame 41 is arranged on the outside of the water pipe 2 and does not contact the water pipe 2. The No. 1 push rod 431 does not directly contact the water pipe 2. A wireless device is provided on the No. 1 support frame 41. The wireless device adopts a portable wifi device. The output end of the pressure detector 42 is connected to the wireless device. The liquid ammonia evaporator 1 has insufficient heating capacity of the steam-assisted heating pipe due to the excessive length and excessive bending of the heating pipe. After the steam is introduced first, if the liquid ammonia is introduced, the liquid ammonia will evaporate immediately and take away a large amount of heat, causing the condensate to freeze due to a sharp drop in temperature, so that the condensate cannot be discharged normally. When there is frozen condensate in the discharge pipe 11, the flow area of ​​the condensate at the discharge pipe 11 is reduced, and the condensate is discharged from the discharge pipe. 11 The outflow velocity increases, the flow velocity of the condensate in the water pipe 2 increases, the impact of the condensate on the bend of the pipe increases, the amplitude of the water pipe 2 increases, the water pipe 2 collides with the No. 1 push rod 431, and moves the No. 1 push rod 431 toward the direction close to the pressure detector 42. When the amplitude of the water pipe 2 reaches the specified value, the No. 1 push rod 431 contacts the pressure detector 42, so that the pressure detector 42 is triggered, and the staff is notified through the wireless device to come for maintenance. Due to the existence of problems such as the high temperature of the pipeline for transporting condensate and ammonia leakage, if the detector is directly installed on the official road, the detector is prone to damage. By setting the No. 1 push rod 431 and the No. 1 support frame 41, the above problems are avoided.

[0072] like Figure 5 As shown, the trigger component 43 also includes:

[0073] An inclined block 433 for pushing the first push rod 431 , wherein the inclined block 433 is slidably mounted inside the first support frame 41 ;

[0074] A second push rod 432 for pushing the inclined block 433 , wherein the second push rod 432 is slidably mounted inside the first support frame 41 ; and

[0075] Two oblique rod groups are slidably installed inside the No. 1 support frame 41, and the oblique rod group includes a No. 1 oblique rod 434 and a No. 2 oblique rod 436. The No. 1 oblique rod 434 is located between the No. 2 push rod 432 and the oblique block 433, and the No. 2 oblique rod 436 is located between the No. 1 push rod 431 and the oblique block 433.

[0076] Specifically, when the water pipe 2 collides with the second push rod 432 for the first time, the second push rod 432 moves towards the first inclined rod 434, pushing the inclined rod to move into the interior of the first support frame 41 until it is completely inside the first support frame 41, when the water pipe 2 collides with the second push rod 432 for the second time, the second push rod 432 contacts the inclined block 433 and pushes the inclined rod to move towards the first push rod 431, at this time the second inclined rod 436 is moved to the interior of the first support frame 41 by the pushing force of the inclined block 433, when the water pipe 2 continuously contacts the second push rod 432 for the third time, the second push rod 432 pushes the first push rod 431 to move and contact the pressure detector 42, when the water pipe 2 and the second push rod 432 are not contacted fast enough, the inclined rod group will return to the original position under the action of the spring force, after that, the movement generated by the contact between the water pipe 2 and the second push rod 432 is the movement generated by the first collision between the water pipe 2 and the second push rod 432, when only some frozen condensate is generated at the outlet of the diffusion pipe 11, if the frozen condensate is washed away by the subsequent generated condensate, the water pipe 2 and the second push rod 432 only produce a small amount of collision in this process, then the pressure detector 42 is not triggered, if the frozen condensate is still blocked in the diffusion pipe 11, the water pipe 2 and the second push rod 432 produce multiple continuous collisions in this process, then the pressure detector 42 is triggered, the problem of false triggering is avoided by setting the inclined rod group.

[0077] As shown in Figure 4 , the trigger assembly 43 further comprises a plurality of spring groups arranged on the first support frame 41, and the spring group comprises a reset spring 435 fixedly connected on both sides of the first push rod 431.

[0078] Specifically, by setting the spring group, the first push rod 431 can only contact the pressure detector 42 when it receives a specified degree of pushing force.

[0079] As shown in Figure 3 , the liquid ammonia evaporator 1 further comprises a knocking part, and the knocking part comprises:

[0080] A second support frame 51 fixedly installed outside the diffusion pipe 11;

[0081] A plurality of first knocking rods 52 slidingly installed on the second support frame 51, and the first knocking rod 52 is used to knock the diffusion pipe 11; and

[0082] A folding rod 53 for pushing the first knocking rod 52, and one end of the folding rod 53 away from the first knocking rod 52 is hinged to the first support frame 41.

[0083] Specifically, when there is frozen condensate in the discharge pipe 11, the folding rod 53 is pushed, and the folding rod 53 moves to drive the No. 1 knocking rod 52 to contact the discharge pipe 11 and knock on the discharge pipe 11, so that the frozen condensate in the discharge pipe 11 falls from the pipe wall of the discharge pipe 11.

[0084] like Figure 8 As shown, the knocking part also includes:

[0085] A plurality of slide slots 55 provided on the second support frame 51; and

[0086] A plurality of second knocking rods 54 are slidably mounted in the slide grooves 55 . The second knocking rods 54 are connected to the second support frame 51 via springs. The second knocking rods 54 are used to knock the liquid ammonia evaporator 1 .

[0087] Specifically, when the frozen condensate is in the liquid ammonia evaporator 1 , the second knocking rod 54 is pushed to contact the liquid ammonia evaporator 1 and knock the liquid ammonia evaporator 1 , causing the liquid ammonia evaporator 1 to vibrate, causing the frozen condensate in the liquid ammonia evaporator 1 to fall off.

[0088] like Figure 3 As shown, one end of several of the No. 1 knocking rods 52 and No. 2 knocking rods 54 is fixedly connected to a flexible ball 56 , and one end of several of the No. 2 push rods 432 is fixedly connected to a flexible block 4321 .

[0089] Specifically, the No. 1 knocking rod 52, the No. 2 knocking rod 54 and the No. 2 push rod 432 are in direct contact with the vent pipe 11 and the liquid ammonia evaporator 1, which will produce a rigid collision and easily cause damage to the vent pipe 11 and the liquid ammonia evaporator 1. By providing the flexible ball 56 and the flexible block 4321, the above problem is avoided and protection is provided for the vent pipe 11 and the liquid ammonia evaporator 1.

[0090] like Figure 3 As shown, the knocking part also includes:

[0091] A slide 57 fixedly mounted between the first support frame 41 and the second support frame 51;

[0092] A ring 58 slidably connected to the slide 57 , with a plurality of springs provided between the ring 58 and the second support frame 51 ;

[0093] A plurality of No. 1 connecting rods 59 are hingedly connected to one side of the ring 58 , and the other ends of the No. 1 connecting rods 59 are hingedly connected to the No. 2 support frame 51 ;

[0094] A Z-shaped rod 511 is fixedly connected to one side of the ring 58, and the other end of the Z-shaped rod 511 is fixedly connected to the second knocking rod 54;

[0095] A plurality of square plates 512 slidably connected to the first support frame 41; and

[0096] A plurality of second connecting rods 510 are hinged on one side of the ring 58 , and the other ends of the second connecting rods 510 are connected to the square plate 512 .

[0097] Specifically, one of the square plates 512 is pushed upward, and the second connecting rod 510 connected to the square plate 512 rotates and moves, driving the ring 58 to move toward the direction close to the first support frame 41. When the ring 58 moves to a specified distance, the square plate 512 is released. At this time, the ring 58 is moved toward the direction close to the second support frame 51 by the elastic force of the spring. The movement of the ring 58 drives the first connecting rod 59 to move and rotate. At this time, the folding rod 53 is driven by the first connecting rod 59 to move and rotate. The folding rod 53 moves downward, pushing the No. 1 knocking rod 52 to knock on the discharge pipe 11. At the same time, the Z-shaped rod 511 is pushed by the ring 58 to move toward the liquid ammonia evaporator 1, and pushes the No. 2 knocking rod 54 to knock on the liquid ammonia evaporator 1. By setting the ring 58, when a square plate 512 moves, all the knocking rods knock on the discharge pipe 11 and the liquid ammonia evaporator 1. The number of knocks increases, which increases the probability of the frozen condensed water being washed away and improves the dredging effect.

[0098] like Figure 6 As shown, a number of electric telescopic rods 513 are fixedly connected to the No. 1 support frame 41, one end of the electric telescopic rod 513 is against one side of the square plate 512, and a number of teeth are provided on the side of the square plate 512 away from the electric telescopic rod 513, and a number of teeth are provided on the No. 1 push rod 431.

[0099] Specifically, when the No. 1 push rod 431 pushes the pressure detector 42 to move upward, the electric telescopic rod 513 moves, pushing the square plate 512 to move toward the No. 1 push rod 431 until the square plate 512 engages with the No. 1 push rod 431. When the No. 1 push rod 431 moves downward, it drives the square plate 512 to move upward, causing the ring 58 to move, driving the No. 1 knocking rod 52 to knock on the discharge pipe 11, and the No. 2 knocking rod 54 to knock on the liquid ammonia evaporator 1. When the No. 1 push rod 431 returns to its initial position, The electric telescopic rod 513 contracts, and the square plate 512 returns to its initial position under the pulling force of the ring 58. By setting the electric telescopic rod 513, the problem that the No. 1 knocking rod 52 and the No. 2 knocking rod 54 also work when the amplitude of the water pipe 2 does not reach the specified value is avoided. At the same time, it is avoided that when the amplitude of the water pipe 2 reaches the specified value, the No. 1 push rod 431 cannot contact the pressure monitor due to the transmission between the No. 1 push rod 431 and the square plate 512, causing the maintenance delay. Example 2

[0100] like Figure 8As shown, compared with Example 1, another embodiment of the present invention is: a circular groove 521 is provided on the No. 1 knocking rod 52, the depth of each circular groove 521 is different, the folding rod 53 slides in the circular groove 521, and the length of the No. 2 knocking rod 54 is different.

[0101] Specifically, by setting circular grooves 521 of different depths and No. 2 knocking rods 54 of different lengths, the contact time between different folding rods 53 and No. 1 knocking rod 52 is different, the time when No. 1 knocking rod 52 is pushed to knock on the vent pipe 11 is different, and the contact time between No. 2 knocking rod 54 and liquid ammonia evaporator 1 is different, thereby avoiding the problem of excessive force of knocking at the same time, which causes damage to the vent pipe 11 and the liquid ammonia evaporator 1.

[0102] Working steps

[0103] Step 1: High-temperature steam and liquid ammonia are introduced into the liquid ammonia evaporator 1. The liquid ammonia evaporator 1 uses steam to heat the liquid ammonia to above 115°C to gasify it to form ammonia gas. Since condensed water is formed in the process of steam heating the liquid ammonia evaporator 1, the condensed water is drained out by steam pressure. The condensed water is discharged into the desulfurization slurry tank 3 by setting a water pipe 2, thereby increasing the temperature of the mixed slurry to accelerate the dissolution and mixing of the desulfurizer in the hot water, reducing the water consumption in the circulating slurry tank, and the discharged condensed water is input into the mixed slurry tank, thereby saving water consumption;

[0104] When the water pipe 2 collides with the second push rod 432 for the third time, the second push rod 432 and the inclined block 433 push the first push rod 431 to move and contact the pressure detector 42. When the water pipe 2 collides with the second push rod 432 for the third time, the second push rod 432 and the inclined block 433 push the first push rod 431 to move and contact the pressure detector 42. When the outlet of the discharge pipe 11 only produces some ice, Condensate, if this frozen condensate is washed away by the condensate generated subsequently, during this process, the water pipe 2 and the second push rod 432 only produce a small amount of collision, and the continuous contact time between the water pipe 2 and the second push rod 432 is not fast enough, the inclined rod group will return to the original position under the action of the spring elastic force, and the movement generated after the water pipe 2 and the second push rod 432 contact thereafter is the movement generated after the first collision between the water pipe 2 and the second push rod 432. During this process, the first push rod 431 does not contact the pressure detector 42. If the frozen condensate is still blocked in the discharge pipe 11, during this process, the water pipe 2 and the second push rod 432 produce multiple continuous collisions until the first push rod 431 contacts the pressure detector 42, causing the pressure detector 42 to be triggered, and the staff is notified through the wireless device to come for maintenance. The problem of false triggering is avoided by setting the inclined rod group;

[0105] Step 3: When the No. 1 push rod 431 pushes the pressure detector 42 upward, the electric telescopic rod 513 moves, pushing the square plate 512 to move toward the No. 1 push rod 431 until the square plate 512 is engaged with the No. 1 push rod 431. When the No. 1 push rod 431 moves downward, the square plate 512 moves upward, and the No. 2 connecting rod 510 connected to the square plate 512 rotates and moves, driving the ring 58 to move toward the direction of the No. 1 support frame 41. When the ring 58 moves to the specified distance, the square plate 512 is released. At this time, the ring 58 is moved toward the direction of the No. 2 support frame 51 by the elastic force of the spring. The movement of the ring 58 drives the No. 1 connecting rod 59 to move and rotate. At this time, the folding rod 53 is driven by the No. 1 connecting rod 59 to move and rotate. The folding rod 53 moves downward, pushing the No. 1 knocking rod 52 to knock on the discharge pipe 11. The discharge pipe 11 vibrates, causing the frozen condensate in the liquid ammonia evaporator 1 to fall. At the same time, the Z-shaped rod 511 is pushed by the ring 58 to move toward the liquid ammonia evaporator 1 and push the No. 2 knocking rod 54 to knock on the liquid ammonia evaporator 1. The liquid ammonia evaporator 1 vibrates, causing the frozen condensate in the liquid ammonia evaporator 1 to fall, thereby clearing the pipeline.

[0106] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A denitrification steam recovery and utilization device, including a liquid ammonia evaporator, and also including: A discharge pipe fixedly connected to the liquid ammonia evaporator, the discharge pipe being used to discharge condensate; a water pipe fixedly connected to one end of the discharge pipe, a booster pump installed on the water pipe, a temperature detector provided inside the water pipe, and used for transporting condensate; and A desulfurization slurry tank is fixedly connected to one end of the discharge pipe, an alarm is fixedly installed on the desulfurization slurry tank, and the output end of the temperature detector is connected to the alarm; The liquid ammonia evaporator further includes a detection unit, which includes: A support frame fixedly mounted on the outside of the water pipe; a plurality of pressure detectors slidably mounted on the first support frame; and a plurality of trigger assemblies slidably mounted on the first support frame, the trigger assemblies comprising a first push rod slidably mounted on the first support frame, the first push rod being used to trigger the pressure detector; The trigger component also includes: An inclined block for pushing the first push rod, the inclined block being slidably mounted inside the first support frame; A second push rod for pushing the inclined block, wherein the second push rod is slidably mounted inside the first support frame; and Two oblique rod groups slidably mounted inside the first support frame, the oblique rod group comprising a first oblique rod and a second oblique rod, the first oblique rod being located between the second push rod and the oblique block, the second oblique rod being located between the first push rod and the oblique block; When the water pipe collides with push rod No. 2 for the first time, push rod No. 2 moves toward the direction close to oblique rod No. 1, pushing oblique rod No. 1 to move toward the inside of support frame No. 1 until it completely enters the inside of support frame No.

1. When the water pipe collides with push rod No. 2 for the second time, push rod No. 2 contacts the oblique block and pushes the oblique block to move toward the direction close to push rod No.

1. At this time, oblique rod No. 2 is moved to the inside of support frame No. 1 by the thrust of the oblique block. When the water pipe collides with push rod No. 2 for the third time, push rod No. 2 and the oblique block push push rod No. 1 to move and contact the pressure detector. When the water pipe and push rod No. 2 are not in continuous contact fast enough, the oblique rod group will return to its original position under the action of the elastic force of the first spring.

2. The denitration steam recovery and utilization device according to claim 1, characterized in that: The trigger assembly also includes a plurality of spring groups arranged on the No. 1 support frame, and the spring group includes return springs fixedly connected to both sides of the No. 1 push rod.

3. The denitration steam recovery and utilization device according to claim 1, characterized in that: The liquid ammonia evaporator further includes a knocking part, which includes: A second support frame fixedly mounted on the outside of the discharge pipe; a plurality of No. 1 knocking rods slidably mounted on the No. 2 support frame, the No. 1 knocking rods being used to knock the vent pipe; and A folding rod is pushed to push the first knocking rod, and one end of the folding rod away from the first knocking rod is hinged to the first support frame.

4. The denitration steam recovery and utilization device according to claim 3, characterized in that: The knocking part also includes: a plurality of slideways provided on the second support frame; and A plurality of No. 2 knocking rods are slidably mounted in the slide grooves, wherein the No. 2 knocking rods are connected to the No. 2 support frame via a second spring, and the No. 2 knocking rods are used for knocking the liquid ammonia evaporator.

5. The denitration steam recovery and utilization device according to claim 4, characterized in that: One end of several of the No. 1 knocking rods and No. 2 knocking rods is fixedly connected with a flexible ball, and one end of several of the No. 2 push rods is fixedly connected with a flexible block.

6. The denitration steam recovery and utilization device according to claim 5, characterized in that: The knocking part also includes: A slide fixedly mounted between the first support frame and the second support frame; A ring slidably connected to the slide, with a plurality of third springs provided between the ring and the second support frame; A plurality of No. 1 connecting rods hingedly connected to one side of the ring, the other ends of the No. 1 connecting rods being hingedly connected to the No. 2 support frame; A Z-shaped rod fixedly connected to the other side of the ring, wherein the other end of the Z-shaped rod is fixedly connected to the second knocking rod; A plurality of square plates slidably connected to the first support frame; and A plurality of No. 2 connecting rods hingedly connected to one side of the circular ring, wherein the other ends of the No. 2 connecting rods are connected to the square plate; Push one of the square plates upward, and the No. 2 connecting rod connected to the square plate rotates and moves, driving the ring to move toward the No. 1 support frame. When the ring moves to the specified distance, release the square plate. At this time, the ring moves toward the No. 2 support frame under the elastic force of the third spring. The movement of the ring drives the No. 1 connecting rod to move and rotate. At this time, the folding rod is driven by the No. 1 connecting rod to move and rotate, and the folding rod moves downward, pushing the No. 1 knocking rod to knock on the discharge pipe. At the same time, the Z-shaped rod is pushed by the ring to move toward the liquid ammonia evaporator and push the No. 2 knocking rod to knock on the liquid ammonia evaporator.

7. The denitration steam recovery and utilization device according to claim 5, characterized in that: The first knocking rod is provided with a circular groove, the depth of each circular groove is different, the folding rod slides in the circular groove, and the lengths of the second knocking rod are different.

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