High-tower chemical fertilizer steam condensate recovery structure

Abstract

The utility model relates to the technical field of chemical fertilizer production, and discloses a high-tower chemical fertilizer steam condensate recovery structure which comprises a high tower, a heat exchanger arranged on one side of the top end, and a refrigerant inlet, a heating medium outlet, an air inlet and an air outlet which are formed in the surface of the heat exchanger. According to the high-tower chemical fertilizer steam condensate recovery structure, through the arrangement of the heat exchanger, high-temperature steam heat generated in the chemical fertilizer production process can be effectively recovered, cyclic utilization of heat energy is achieved, the high-tower chemical fertilizer steam condensate recovery structure is used for preheating chemical fertilizer raw materials, and the energy utilization efficiency is remarkably improved; the contact area of air flow and the exhaust pipe is greatly increased, an efficient air cooling channel is formed and the temperature of exhaust gas is reduced through cooperation with the downward pressing effect of cold air flow in the cooling tower, automatic cleaning of the surfaces of the cooling fins and the exhaust pipe is achieved through the up-down sliding design of the cleaning ring and the absorbent cotton, the absorbent cotton can absorb condensate water and attachments, and the cooling effect of the cooling tower is improved. And long-term retention of corrosive substances is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical fertilizer production, specifically to a high tower chemical fertilizer steam condensate water recovery structure. BACKGROUND

[0002] In the production process of high tower granulation compound fertilizer, the mixed slurry needs to be sprayed into the granulation tower through the granulation spray head on the upper part of the high tower, which will generate a large amount of heat and water vapor.

[0003] The existing patent (announcement number: CN215275832U) discloses a chemical fertilizer high tower steam condensate water recovery device with anti-corrosion function, which comprises a high tower main body and a cooling box. The inner cavity of the cooling box is vertically fixedly installed with a first baffle, which divides the inner cavity of the cooling box into an air inlet cavity and a cooling cavity. The utility model relates to the technical field of chemical fertilizer high tower. The chemical fertilizer high tower steam condensate water recovery device with anti-corrosion function drives the transmission rod to rotate through the driving motor, so that the transmission rod drives the fan to rotate. Then, the air enters the inner cavity of the cooling cavity through the first air vent of the first baffle inner cavity, so that the air contacts the surface of the gas conveying pipe to accelerate the cooling speed of the steam inside the gas conveying pipe. At the same time, the transmission rod can drive the cleaning cylinder to rotate through the transmission belt. Then, the cleaning cylinder can clean the surface of the gas conveying pipe through the cleaning brush, avoiding the corrosion of water droplets on the gas conveying pipe and reducing the service life of the gas conveying pipe.

[0004] The cleaning cylinder of the above-mentioned recovery structure can clean the surface of the gas conveying pipe through the cleaning brush, avoiding the corrosion of water droplets on the gas conveying pipe. However, although the inside of the cleaning cylinder is provided with air vents, it still blocks the gas conveying pipe, and the brush also blocks the gas conveying pipe, affecting the contact between the airflow and the gas conveying pipe and the heat dissipation efficiency. In addition, the above-mentioned recovery structure cannot realize the purpose of heat recovery, causing waste of heat energy. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a high tower chemical fertilizer steam condensate water recovery structure, which has the advantages of heat energy recovery and high cooling efficiency, and solves the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high tower chemical fertilizer steam condensate water recovery structure, which comprises a high tower and a heat exchanger arranged on one side of the top end of the high tower, and a refrigerant inlet, a heat medium outlet, an air inlet and an air outlet arranged on the surface of the heat exchanger. The top end of the high tower is fixedly connected with a gas guiding pipe, one end of the gas guiding pipe is fixedly installed with a gas guiding fan, and the other end of the gas guiding fan is fixedly connected with the air inlet.

[0007] The other end of the exhaust port is fixedly connected with an exhaust pipe, the outer surface of the exhaust pipe is fixedly connected with a cooling tower, the bottom of the cooling tower is fixedly connected with a purification water tank, the outer surface of the exhaust pipe is fixedly connected with a plurality of circumferentially arranged heat dissipation fins, the plurality of heat dissipation fins are located inside the cooling tower, the outer surface of the plurality of heat dissipation fins is sleeved with a cleaning ring, the inner wall of the cleaning ring is fixedly connected with a plurality of water absorption cottons, and each water absorption cotton is in contact with the heat dissipation fin adjacent thereto.

[0008] Further, the outer surface of the top end of the high tower is fixedly connected with a support frame, and the heat exchanger is fixedly connected with the support frame.

[0009] Through the above scheme, the support frame can be fixed to the heat exchanger.

[0010] Further, the front surface of the purification water tank is provided with a liquid level sensor.

[0011] Through the above scheme, the liquid level sensor can be used to monitor the water level in the purification water tank, and the upper surface of the purification water tank is fixedly connected with a discharge pipe.

[0012] Further, the bottom end of the exhaust pipe is provided with an air pump, the input end of the air pump is fixedly connected with the end of the exhaust pipe, the output end of the air pump is fixedly connected with an air outlet pipe, the air outlet pipe is fixedly connected with the purification water tank, and the bottom end of the air outlet pipe is provided with a check valve.

[0013] Through the above scheme, the dust in the gas can be filtered by inputting the gas below the purification water, and the cleanliness of the exhaust gas is improved.

[0014] Further, the top end of the cooling tower is fixedly connected with two cooling pipes arranged upwardly and obliquely, and the top end of each cooling pipe is provided with a cooling fan.

[0015] Through the above scheme, the cooling fan can introduce external airflow into the cooling tower, and the cooling airflow is downwardly delivered, which can effectively improve the cooling efficiency in cooperation with the air channel formed by the heat dissipation fins.

[0016] Further, a screw rod is rotatably connected between the inner top wall and the inner bottom wall of the cooling tower, and the cleaning ring is threadedly connected with the screw rod.

[0017] Through the above scheme, the cleaning ring can be moved up and down through the screw rod.

[0018] Further, a motor is installed at the top end of the cooling tower, and the output end of the motor is fixedly connected with the top end of the screw rod.

[0019] Through the above scheme, the motor can provide power for the rotation of the screw rod.

[0020] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0021] The high-tower chemical fertilizer steam condensate water recovery structure can effectively recover the high-temperature steam heat generated in the chemical fertilizer production process, realize the recycling of heat energy, preheat the chemical fertilizer raw materials, significantly improve the energy utilization efficiency, the heat dissipation fins arranged in the circumferential direction on the outer surface of the exhaust pipe greatly increase the contact area of the airflow with the exhaust pipe, cooperate with the downward pressure of the cold airflow in the cooling tower, form an efficient air cooling channel, reduce the temperature of the exhaust gas, and the up-down sliding design of the cleaning ring and the water-absorbing cotton realizes automatic cleaning of the surface of the heat dissipation fins and the exhaust pipe, the water-absorbing cotton can absorb condensate water and attachments, prevent the long-term retention of corrosive substances, effectively prolong the service life of the equipment, reduce the maintenance cost, and the water level of the purification water tank is controlled by the liquid level sensor, so that the gas can be purified by water bath before being discharged, dust and impurities are removed, and the cleanliness of the exhaust gas is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure perspective view of the present application;

[0023] Figure 2 It is a whole structure front view of the present application;

[0024] Figure 3 It is a sectional view of the whole structure front view of the present application;

[0025] Figure 4 It is a structure diagram of the cleaning ring and the heat dissipation fin of the present application;

[0026] Figure 5 It is a structure diagram of the cleaning ring and the water-absorbing cotton of the present application.

[0027] In the drawing:

[0028] 1, high tower;

[0029] 2, heat exchanger; 201, refrigerant inlet; 202, heat medium outlet; 203, air inlet; 204, exhaust port;

[0030] 3, air guide pipe; 4, air guide fan; 5, exhaust pipe; 6, cooling tower; 7, purification water tank; 8, heat dissipation fin; 9, cleaning ring; 10, water-absorbing cotton; 11, support frame; 12, liquid level sensor; 13, air pump; 14, air outlet pipe; 15, check valve; 16, cooling pipe; 17, cooling fan; 18, lead screw; 19, motor. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 A high tower chemical fertilizer steam condensate water recovery structure in the embodiment comprises a high tower 1, a heat exchanger 2 arranged at one side of the top end of the high tower 1, and a refrigerant inlet 201, a heat medium outlet 202, an air inlet 203 and an air outlet 204 arranged on the surface of the heat exchanger 2, characterized in that: the top end of the high tower 1 is fixedly connected with a gas guide pipe 3, one end of the gas guide pipe 3 is fixedly installed with a gas guide fan 4, the other end of the gas guide fan 4 is fixedly connected with the air inlet 203, and the outer surface of the top end of the high tower is fixedly connected with a support frame 11, and the heat exchanger 2 is fixedly connected with the support frame 11. Through the arrangement of the support frame 11, the fixing purpose of the heat exchanger 2 can be achieved.

[0033] Please refer to Figure 1 , Figure 2 and Figure 5 The other end of the air outlet 204 is fixedly connected with an exhaust pipe 5, the outer surface of the exhaust pipe 5 is fixedly connected with a cooling tower 6, the bottom of the cooling tower 6 is fixedly connected with a purified water tank 7, the outer surface of the exhaust pipe 5 is fixedly connected with a group of circumferentially arranged heat dissipation fins 8, the group of heat dissipation fins 8 are located inside the cooling tower 6, the outer surface of the group of heat dissipation fins 8 is sleeved with a cleaning ring 9, the inner wall of the cleaning ring 9 is fixedly connected with a plurality of water absorption cottons 10, each water absorption cotton 10 is in contact with the heat dissipation fin 8 close to it, through the arrangement of the heat dissipation fins 8, the airflow contact area of the exhaust pipe 5 can be increased, and the cooling effect can be improved, through the up and down sliding of the cleaning ring 9 and the water absorption cotton 10, the cleaning purpose of the exhaust pipe 5 can be achieved, and the corrosion of the exhaust pipe 5 and the heat dissipation fins 8 is avoided.

[0034] Please refer to Figure 1 , Figure 2 and Figure 4The inner top wall and the inner bottom wall of the cooling tower 6 are rotationally connected with a screw rod 18, the cleaning ring 9 is threadedly connected with the screw rod 18, the screw rod 18 is provided, the up-and-down movement of the cleaning ring 9 can be realized, a motor 19 is installed at the top end of the cooling tower 6, the output end of the motor 19 is fixedly connected with the top end of the screw rod 18, the motor 19 is provided, power can be provided for the rotation of the screw rod 18, two cooling pipes 16 which are obliquely upward arranged are fixedly communicated with the top end of the cooling tower 6, cooling fans 17 are installed at the top ends of the two cooling pipes 16, outside air flow is introduced into the cooling tower 6 through the cooling fans 17, the cold air flow is downwardly conveyed, and the air passage formed by the heat dissipation fins 8 can effectively improve the cooling efficiency.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , the front surface of the purified water tank 7 is provided with a liquid level sensor 12, the liquid level sensor 12 is provided, the water level in the purified water tank 7 can be monitored, the upper surface of the purified water tank 7 is fixedly communicated with a discharge pipe, the bottom end of the exhaust pipe 5 is provided with a gas pump 13, the input end of the gas pump 13 is fixedly communicated with the end of the exhaust pipe 5, the output end of the gas pump 13 is fixedly communicated with an air outlet pipe 14, the air outlet pipe 14 is fixedly communicated with the purified water tank 7, a one-way valve 15 is installed at the bottom end of the air outlet pipe 14, the dust in the gas can be filtered by inputting the gas below the purified water, and the cleanliness of the discharged gas is improved.

[0036] The high tower 1 fertilizer steam condensate water recovery structure in the embodiment, through the setting of the heat exchanger 2, the high-temperature steam heat generated in the fertilizer production process can be effectively recovered, the recycling of heat energy is realized, the preheating of the fertilizer raw material is realized, the energy utilization efficiency is significantly improved, the heat dissipation fins 8 which are circumferentially arranged are arranged on the outer surface of the exhaust pipe 5, the contact area of the airflow and the exhaust pipe 5 is greatly increased, the high-efficiency air cooling channel is formed by the downward pressing action of the cold airflow in the cooling tower 6, the temperature of the discharged gas is reduced, the up-and-down sliding design of the cleaning ring 9 and the water-absorbing cotton 10 realizes the automatic cleaning of the surface of the heat dissipation fins 8 and the exhaust pipe 5, the water-absorbing cotton 10 can absorb the condensed water and the attached matters, the long-term retention of corrosive substances is prevented, the service life of the equipment is effectively prolonged, the maintenance cost is reduced, the water level of the purified water tank 7 is controlled through the liquid level sensor 12, it is ensured that the gas is purified through water bath before being discharged, the dust and impurities are removed, and the cleanliness of the discharged gas is improved.

[0037] The working principle of the above embodiment is that the steam-containing tail gas generated in the chemical fertilizer production process is actively sucked into the air inlet 203 by the air induction pipe 3 at the top end of the high tower 1 through the air induction fan 4 and is transported to the heat exchanger 2, so as to ensure that the tail gas quickly enters the heat exchange stage and avoid heat loss. In the heat exchanger 2, the high-temperature tail gas is subjected to heat exchange with the coolant, the coolant flows into through the coolant inlet 201, absorbs the heat energy in the tail gas, and is discharged from the coolant outlet 202 to be used for preheating of the chemical fertilizer raw materials, so as to realize heat energy recovery. This process can reduce the tail gas temperature, reduce the boiler fuel consumption, and the cooled tail gas enters the exhaust pipe 5 from the exhaust port 204. The heat dissipation fins 8 arranged on the outer surface of the exhaust pipe greatly increase the airflow contact area and accelerate heat dissipation. The cooling fan 17 at the top of the cooling tower 6 introduces external cold air, forms forced convection through the inclined cooling pipe 16, and cooperates with the heat dissipation fins 8 to further reduce the tail gas temperature. The cleaning ring 9 installed in the cooling tower 6 is driven by the motor 19 to move up and down on the screw rod 18, continuously wipes the surface of the heat dissipation fins 8 with the inner wall of the water-absorbing cotton 10, avoids pipeline corrosion, and the condensed water and residual gas enter the purification water tank 7. The liquid level sensor 12 monitors the water level in real time, the gas is pressurized by the air pump 13 and then enters the bottom of the water tank through the gas outlet pipe 14, the one-way valve 15 prevents backflow, and the dust in the gas is filtered by water and discharged.

[0038] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "including a" statement does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-tower (1) fertilizer steam condensate recovery structure, comprising a high tower (1) and a heat exchanger (2) disposed on one side of the top, and a refrigerant inlet (201), a heat medium outlet (202), an air inlet (203), and an exhaust outlet (204) disposed on the surface of the heat exchanger (2), characterized in that: The top of the tower (1) is fixedly connected to an air intake pipe (3), one end of which is fixedly installed with an air intake fan (4), and the other end of the air intake fan (4) is fixedly connected to an air inlet (203). The other end of the exhaust port (204) is fixedly connected to an exhaust pipe (5). A cooling tower (6) is fixedly connected to the outer surface of the exhaust pipe (5). A purified water tank (7) is fixedly connected to the bottom of the cooling tower (6). A set of heat dissipation fins (8) arranged in a circle are fixedly connected to the outer surface of the exhaust pipe (5). The set of heat dissipation fins (8) are all located inside the cooling tower (6). A cleaning ring (9) is sleeved on the outer surface of the set of heat dissipation fins (8). Multiple absorbent cotton (10) are fixedly connected to the inner wall of the cleaning ring (9). Each absorbent cotton (10) is in contact with the heat dissipation fin (8) that is close to it.

2. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: The top outer surface of the tower (1) is fixedly connected to a support frame (11), and the heat exchanger (2) is fixedly connected to the support frame (11).

3. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: A liquid level sensor (12) is installed on the front of the purified water tank (7).

4. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: An air pump (13) is provided at the bottom of the exhaust pipe (5). The input end of the air pump (13) is fixedly connected to the end of the exhaust pipe (5). The output end of the air pump (13) is fixedly connected to the air outlet pipe (14). The air outlet pipe (14) is fixedly connected to the purified water tank (7). A one-way valve (15) is installed at the bottom of the air outlet pipe (14).

5. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: The top of the cooling tower (6) is fixedly connected to two upwardly inclined cooling pipes (16), and a cooling fan (17) is installed at the top of each cooling pipe (16).

6. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: The cooling tower (6) is rotatably connected between its inner top wall and inner bottom wall by a lead screw (18), and the cleaning ring (9) is threadedly connected to the lead screw (18).

7. The high-tower (1) fertilizer steam condensate recovery structure according to claim 1, characterized in that: A motor (19) is installed at the top of the cooling tower (6), and the output end of the motor (19) is fixedly connected to the top of the lead screw (18).

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