Steam condensate energy transmission and utilization equipment

Abstract

The invention relates to the technical field of energy conversion equipment, and discloses steam condensate energy transmission and utilization equipment which comprises a heat exchanger, the heat exchanger is used for heat energy conversion of steam condensate, a shell is arranged on the heat exchanger, a snakelike pipeline for conveying steam is arranged in the shell, the snakelike pipeline is composed of a straight pipe and an elbow, and two ports are formed in the elbow. According to the split type coiled pipe, the coiled pipe is formed in a split mode, namely, the straight pipes and the elbows serve as forming modules, the straight pipes and the elbows are connected through the rotating sleeves, and therefore the single modules can be rapidly detached and replaced; in the cleaning process of the heat exchanger, the single module can be cleaned only by disassembling the snakelike pipeline composed of the multiple modules, the cleaning effect is improved, and therefore the heat exchange effect of the heat exchanger in use is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy conversion equipment, in particular to a steam condensate energy utilization equipment. BACKGROUND

[0002] The heat exchanger is an energy-saving device for realizing heat transfer between materials of two or more fluids at different temperatures, and is one of the main devices for improving energy utilization rate, which is used to transfer heat from the fluid at a higher temperature to the fluid at a lower temperature to make the temperature of the fluid meet the process requirements. The heat exchanger industry involves nearly thirty industries such as heating, pressure vessels, water treatment equipment, chemical industry, petroleum, etc., and forms an industrial chain.

[0003] In the field of traditional heat exchanger design, the typical structure represented by the double-pipe heat exchanger adopts a serpentine flow channel configuration. When steam as a heat medium moves axially in a laminar or turbulent flow in the pipe, the impurities such as dissolved inorganic salts, small particles and corrosion products in the steam will be physically adsorbed and chemically deposited on the inner wall of the pipe due to the influence of the fluid boundary layer effect and the difference in surface energy of the pipe wall, and gradually form a fouling layer with low thermal conductivity. The thermal resistance value of the fouling layer can reach tens to hundreds of times of the thermal resistance of the metal pipe wall, which significantly weakens the total heat transfer coefficient from the pipe wall to the working medium. This fouling layer can directly cause the efficiency of energy cascade utilization to decrease, especially at the pipe turning position. When the fluid flows through the turning position, the flow rate on the outside is accelerated and the flow rate on the inside is slowed down due to the action of the flow direction and centrifugal force. The low-speed zone is easily formed on the inside, so that the impurities are more easily deposited here and are not easily taken away by the main fluid, further affecting the heat conduction efficiency of the pipe. SUMMARY

[0004] The purpose of the present application is to provide a steam condensate energy utilization equipment to solve the problems in the background art.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a steam condensate energy utilization equipment, which comprises a heat exchanger for heat energy conversion of steam condensate. An outer shell is arranged on the heat exchanger, a serpentine pipe for conveying steam is arranged in the outer shell, the serpentine pipe is composed of a straight pipe and an elbow, two ports are arranged on the elbow, the ports are communicated with the straight pipe, a threaded sleeve is rotatably installed on the port, and the threaded sleeve is threadedly connected with one end of the straight pipe.

[0007] Further, the elbow is composed of a cylinder and two pipe end heads, the two pipe end heads are arranged on the cylinder, a partition plate is arranged in the cylinder, the partition plate divides the cylinder into two chambers, and the straight pipe is communicated with the upper chamber.

[0008] Further, the elbow is provided with a vane driving mechanism, the vane driving mechanism adopts flowing steam as power, and the elbow inner wall is cleaned by rotating the vane; the vane driving mechanism is composed of a rotating ring and a plurality of vanes, the rotating ring is rotatably installed on the cylinder, the plurality of vanes are all installed on the rotating ring, the outer side of the vane is in contact with the inner wall of the cylinder, and the inner wall of the cylinder is cleaned in the process that the vane follows the steam flow.

[0009] Further, one of the pipeline end heads is rotatably provided with a cleaning frame, one side of the cleaning frame extends into the straight cylinder, the elbow is provided with a transmission assembly, the transmission assembly is connected with the cleaning frame, the transmission assembly is connected with the rotating ring, the vane driving mechanism drives the cleaning frame to rotate through the transmission assembly, and the inner wall of the straight pipe is cleaned; the transmission assembly is composed of a rotating frame, a gear one, a gear two, a conical gear one, a transmission rod, a conical gear two and a gear three, the rotating frame is rotatably installed on the cylinder, the gear one is sleeved on the rotating frame, the gear two is rotatably installed on the cylinder, the gear one and the gear two are in meshing connection, the conical gear one is installed on the gear two, the transmission rod is rotatably installed on the cylinder, the conical gear two is sleeved on the transmission rod, the conical gear two and the conical gear one are in meshing connection, the gear three is sleeved on the transmission rod, the gear four is sleeved on the transmission rod, and the gear four is in meshing connection with the cleaning frame.

[0010] Further, the cleaning frame is composed of a rotating ring, an agitating rod and a cleaning strip, the rotating ring is rotatably installed on the pipeline end head, the agitating rod is arranged in the pipeline end head, one end of the agitating rod is connected with the rotating ring, the agitating rod is provided with an agitating piece, and the cleaning strip is arranged on the pipeline end head and connected with the agitating rod.

[0011] Further, the agitating piece and the cleaning strip are both in spiral shape.

[0012] Further, a ventilation groove is formed in the middle of the vane, and a vane strip is arranged in the ventilation groove and is arranged in an inclined manner.

[0013] Further, a water delivery pipe is arranged on the fixed frame, a water guide pipe is arranged on the elbow and communicates with the water delivery pipe, and a valve is arranged on the water guide pipe.

[0014] Further, a shielding push piece is arranged in the pipeline end head provided with the cleaning frame, the shielding push piece is arranged in an inclined manner, steam input from the pipeline end head is pressurized, and the pushing force on the fan blade is improved.

[0015] The present application has the following beneficial effects:

[0016] (1) Compared with the whole serpentine pipe used in the traditional heat exchanger, the serpentine pipe is formed in a split mode, that is, straight pipes and elbows are used as component modules, and the straight pipes and the elbows are connected through rotating sleeves, so that the single module can be quickly replaced, and in the daily maintenance process, the single module can be quickly replaced in case of damage, so that the normal use of the heat exchanger is ensured, the cost of heat exchanger maintenance is saved, and in the process of cleaning the heat exchanger, the serpentine pipe formed by the plurality of modules can be disassembled, so that the single module can be cleaned, the cleaning effect is improved, and the heat exchange effect of the heat exchanger during use is ensured.

[0017] (2) The turning part of the serpentine pipe is provided with a detachable elbow, and a blade driving mechanism is arranged in the elbow, the blade driving mechanism can rotate with the steam flow, and in this process, the blade can clean the inside of the elbow, and the impurities cleaned are discharged through the discharge channel, so that the cleaning work of the elbow is completed, the cleaning effect of the turning part of the serpentine pipe is ensured, and deposition of dirt is avoided, so that the heat exchange effect of the whole serpentine pipe is ensured, and the blade completes the cleaning of the elbow under the action of the steam, so that the automatic cleaning function of the heat exchanger is realized, and the maintenance frequency of the heat exchanger is reduced.

[0018] (3) The transmission mechanism is arranged, so that the blade driving mechanism can drive the cleaning frame to rotate synchronously during the rotation of the steam, the straight pipe inner wall of the heat exchange pipe can be cleaned through the rotation of the cleaning frame, and in the cleaning process, the rotating cleaning strip can realize the screw conveyor function, the impurities cleaned are conveyed into the elbow and collected at the bottom of the elbow under the rotation of the blade driving mechanism, the automatic cleaning function of the heat exchanger is further improved, and in the process of conveying the impurities, the condensate water generated in the straight pipe by the steam also moves, in the moving process, the residual heat in the condensate water is also transferred to the straight pipe, and heat exchange is completed, so that the utilization rate of steam heat can be improved.

[0019] (4) While the cleaning frame cleans the straight pipe, the stirring piece is arranged on the cleaning frame, and in the process of rotating with the cleaning frame, the stirring piece can generate vortex phenomenon in the straight pipe, so as to effectively disturb the laminar boundary layer of the pipe wall, make the core area temperature of the more uniform fluid fully contact with the pipe wall, greatly improve the convective heat transfer coefficient, and ensure the heat exchange effect of the steam.

[0020] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 It is a schematic diagram of the appearance structure of the present application.

[0024] Figure 3 It is a schematic diagram of another appearance structure of the present application.

[0025] Figure 4 It is a schematic diagram of the structure of the serpentine pipe in the present application.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the straight pipe in the present application.

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the cylinder in the present application.

[0028] Figure 7 It is a schematic diagram of the structure of the transmission assembly in the present application.

[0029] Figure 8 It is a schematic diagram of the structure of the blade driving structure in the present application.

[0030] In the drawings, the components represented by each number are listed as follows:

[0031] In the drawings, the components represented by each number are listed as follows: 1, shell; 2, serpentine pipe; 201, straight pipe; 202, cylinder; 203, threaded sleeve; 3, blade driving mechanism; 301, rotating ring; 302, blade; 4, partition plate; 5, shielding tab; 6, cleaning rack; 601, cleaning strip; 602, stirring piece; 7, water guide pipe; 8, water delivery pipe; 9, transmission assembly. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0033] Please refer to Figures 1-8As shown, the present application is a steam condensate energy utilization equipment, including heat exchanger, heat exchanger is used for steam condensate heat energy conversion, heat exchanger is provided with shell 1, shell 1 is provided with fluid input pipeline and input pipeline, by the fluid is transported to the shell 1 and is contacted with the serpentine pipe 2, so as to complete heat transfer conversion, the fluid can be water flow or air, etc., the shell 1 is provided with the serpentine pipe 2 of steam delivery, the serpentine pipe 2 is provided with air inlet pipe and air outlet pipe at both ends, respectively, the air inlet pipe and the air outlet pipe are extended to the outside of shell 1, the serpentine pipe 2 is inhaled and exhaled, wherein the air inlet pipe is connected with the steam delivery part of the outside, the steam delivery part can be a gas pump, the serpentine pipe 2 is composed of straight pipe 201 and elbow, the elbow is provided with two ports, the port is communicated with the straight pipe 201, the port is rotatably installed with threaded sleeve 203, the threaded sleeve 203 is threadedly connected with one end of the straight pipe 201, the outer wall of the threaded sleeve 203 is provided with a hexagonal plane, which facilitates the operator to drive the threaded sleeve 203 to rotate by using a tool, and the elbow and the straight pipe 201 are replaced.

[0034] The elbow is composed of a cylinder 202 and two pipe ends, both of which are arranged on the cylinder 202, and a partition plate 4 is arranged in the cylinder 202, which divides the cylinder 202 into two chambers, the straight pipe 201 is communicated with the upper chamber, and a discharge channel is formed in the partition plate 4, which connects the upper and lower chambers, and the inner walls on both sides of the discharge channel are inclined, which can ensure the normal discharge of the material.

[0035] The elbow is provided with a blade driving mechanism 3, which uses flowing steam as power and cleans the inner wall of the elbow by rotating the blade 302; the blade driving mechanism 3 is composed of a rotating ring 301 and a plurality of blades 302, the rotating ring 301 is rotatably installed on the cylinder 202, and the plurality of blades 302 are installed on the rotating ring 301, the outer side of the blade 302 is in contact with the inner wall of the cylinder 202, and the inner wall of the cylinder 202 is cleaned in the process of the blade 302 following the steam flow.

[0036] One of the pipe end is rotatably mounted with a cleaning frame 6, one side of the cleaning frame 6 extends to the straight cylinder, the elbow is provided with a transmission assembly 9, the transmission assembly 9 is connected with the cleaning frame 6, the transmission assembly 9 is connected with the swivel ring 301, the transmission assembly 9 drives the cleaning frame 6 to rotate through the blade driving mechanism 3, and the inner wall of the straight pipe 201 is cleaned; the transmission assembly 9 is composed of a rotating frame, a gear one, a gear two, a bevel gear one, a transmission rod, a bevel gear two and a gear three, the rotating frame is rotatably installed on the cylinder 202, the gear one is sleeved on the rotating frame, the gear two is rotatably installed on the cylinder 202, the gear one and the gear two are connected in meshing, the bevel gear one is installed on the gear two, the transmission rod is rotatably installed on the cylinder 202, the bevel gear two is sleeved on the transmission rod, the bevel gear two and the bevel gear one are connected in meshing, the gear three is sleeved on the transmission rod, the gear four is sleeved on the transmission rod, the gear four is connected with the cleaning frame 6 in meshing, and the outer periphery of the rotating ring is sleeved with a circular rack connected with the gear four.

[0037] The cleaning frame 6 is composed of a rotating ring, an agitating rod and a cleaning strip 601, the rotating ring is rotatably installed on the pipe end, the agitating rod is arranged in the pipe end, one end of the agitating rod is connected with the rotating ring, the agitating rod is provided with an agitating piece 602, the cleaning strip 601 is arranged on the pipe end, and the cleaning strip 601 is connected with the agitating rod. In actual use, the agitating rod and the cleaning strip 601 both extend into the corresponding straight pipe 201, and the cleaning strip 601 contacts with the inner wall of the straight pipe 201, so that the straight pipe 201 is cleaned.

[0038] The agitating piece 602 and the cleaning strip 601 are both in spiral shape. In the rotating process of the cleaning frame 6, the cleaning strip 601 can achieve the function of screw conveyor, and the impurities cleaned are conveyed into the elbow.

[0039] The middle part of the blade 302 is provided with a ventilation channel, and a strip is arranged in the channel. The strip is arranged in an inclined manner, and the inclination directions of adjacent two strips are opposite. Therefore, in the process that the steam flows through the elbow, the steam flowing through the ventilation channel is irregular in shape through the opposite strips on the adjacent two blades 302, so that the effect of disturbing the steam flow is achieved.

[0040] The fixed frame is provided with a water conveying pipe 8, the elbow is provided with a water guide pipe 7, the water guide pipe 7 is communicated with the water conveying pipe 8, the water guide pipe 7 is provided with a valve, the two sides of the cylinder 202 are both open, the two sides of the cylinder 202 are both provided with a disc baffle, the disc baffle and the cylinder 202 are connected by bolts, and the water guide pipe 7 is connected with one of the disc baffles.

[0041] The pipeline port provided with the cleaning frame 6 is provided with a shielding tab 5, which is arranged in an inclined manner and is used for pressurizing the steam input from the pipeline port, so as to improve the pushing force on the fan blade, and the effect of the shielding tab 5 is equivalent to that of a Venturi tube, so that the pressure of the steam entering the elbow can be improved, so that the pushing effect of the steam on the blade 302 can be guaranteed, and the shielding tab 5 also functions as a guide, so that after the steam enters the elbow, under the action of flow inertia, the steam can flow along the periphery in the cylinder 202, so as to avoid air flow interference.

[0042] The setting of the elbow upper blade driving mechanism 3 can buffer the flow rate of the steam in the flow through the blade 302, reduce the flow rate of the steam, make the steam stay in the serpentine pipeline 2 for a longer time, and improve the utilization rate of the steam.

[0043] In the use process of the application, steam is input into the heat exchanger through the air inlet pipe, that is, into the serpentine pipeline 2, and the steam flows between the straight pipe 201 and the elbow. During the flow of the steam in the straight pipe 201, the stirring plate on the cleaning frame 6 can stir the steam flowing in the middle of the straight pipe 201 to the inner wall of the straight pipe 201, so as to break the fluid boundary layer, so that the steam can better contact the pipeline and improve the heat conduction of the steam.

[0044] After the steam flows into the elbow, the force of the steam flow will push the fan plate to rotate. In this process, the fan plate can clean the inner wall of the elbow to ensure the cleanliness of the inside of the elbow. Meanwhile, the fan plate in the elbow can drive the cleaning frame 6 to rotate synchronously through the transmission assembly 9. The cleaning strip 601 on the cleaning frame 6 can clean the inner wall of the straight pipe 201, and the impurities cleaned can be pushed into the elbow by the cleaning strip 601, thereby realizing the effect of synchronous cleaning. The rotation of the fan blade is driven by the steam, which increases the self-cleaning function of the heat exchanger. After the steam flows in the serpentine pipeline 2, it is discharged through the air outlet pipe, and the steam heat exchange operation is completed.

[0045] In the process of cleaning the straight pipe 201 by the cleaning strip 601, the condensed water condensed from the steam can be transported synchronously with the impurities. In the process of transportation, the residual heat in the condensed water can be transferred to the straight pipe 201, thereby improving the heat utilization rate of the steam. After the condensed water and impurities are cleaned in the elbow, they will fall into the lower chamber of the cylinder 202 on the elbow. The particles will remain in the chamber, and the condensed water can be discharged through the external conveying pipeline. In the maintenance process, the elbow can be removed from the straight pipe 201 for cleaning by screwing. The cleaning is convenient, and the damaged straight pipe 201 or elbow can be replaced by this way. The modular replacement method can better save the heat exchange cost of the heat exchanger.

[0046] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and get the best results from the application. The application is only limited by the claims and their full scope and equivalents.

Claims

1. A steam condensate energy utilization device, comprising a heat exchanger for heat energy conversion of steam condensate, characterized in that: a shell (1) is arranged on the heat exchanger, a serpentine pipe (2) for conveying steam is arranged in the shell (1), the serpentine pipe (2) is composed of a straight pipe (201) and an elbow, two ports are arranged on the elbow, the ports are communicated with the straight pipe (201), a threaded sleeve (203) is rotatably arranged on the ports, and the threaded sleeve (203) is threadedly connected with one end of the straight pipe (201). The elbow is composed of a cylinder (202) and two pipe ends, the two pipe ends are arranged on the cylinder (202), a partition plate (4) is arranged in the cylinder (202), the cylinder (202) is divided into two chambers by the partition plate (4), and the straight pipe (201) is communicated with the upper chamber.

2. The steam condensate energy utilization device according to claim 1, characterized in that: A blade driving mechanism (3) is arranged on the elbow, the blade driving mechanism (3) is driven by flowing steam, and the inner wall of the elbow is cleaned by rotating blades (302).

3. The steam condensate energy utilization device according to claim 2, characterized in that: The blade driving mechanism (3) is composed of a rotating ring (301) and a plurality of blades (302), the rotating ring (301) is rotatably arranged on the cylinder (202), the plurality of blades (302) are arranged on the rotating ring (301), the outer side of the blade (302) is in contact with the inner wall of the cylinder (202), and the inner wall of the cylinder (202) is cleaned in the process that the blade (302) follows the steam flow. One of the pipe ends is rotatably provided with a cleaning frame (6), one side of the cleaning frame (6) extends into the straight cylinder, a transmission assembly (9) is arranged on the elbow, the transmission assembly (9) is connected with the cleaning frame (6), the transmission assembly (9) is connected with the rotating ring (301), the blade driving mechanism (3) drives the cleaning frame (6) to rotate through the transmission assembly (9), and the inner wall of the straight pipe (201) is cleaned.

4. The steam condensate energy utilization device according to claim 3, characterized in that: The transmission assembly (9) is composed of a rotating frame, a gear one, a gear two, a conical gear one, a transmission rod, a conical gear two and a gear three, the rotating frame is rotatably arranged on the cylinder (202), the gear one is arranged on the rotating frame, the gear two is rotatably arranged on the cylinder (202), the gear one and the gear two are in meshing connection, the conical gear one is arranged on the gear two, the transmission rod is rotatably arranged on the cylinder (202), the conical gear two is arranged on the transmission rod, the conical gear two and the conical gear one are in meshing connection, the gear three is arranged on the transmission rod, and a gear four is arranged on the transmission rod. The cleaning frame (6) is composed of a rotating ring, an agitating rod and a cleaning strip (601), the rotating ring is rotatably arranged on the pipe end, the agitating rod is arranged in the pipe end, one end of the agitating rod is connected with the rotating ring, the agitating rod is provided with an agitating piece (602), and the cleaning strip (601) is arranged on the pipe end and connected with the agitating rod.

5. A steam condensate energy utilization device according to claim 4, characterized in that: The agitating piece (602) and the cleaning strip (601) are both in spiral shape.

6. A steam condensate energy utilization apparatus according to claim 5, characterized in that: Ventilation grooves are arranged in the middle of the blades (302), and strips are arranged in the ventilation grooves.

7. A steam condensate energy utilization apparatus according to claim 6, characterized in that: The strips are arranged in an inclined manner.

8. The steam condensate energy utilization device according to claim 7, characterized in that: The fixed frame is provided with a water delivery pipe (8), and the elbow is provided with a water guide pipe (7) which is communicated with the water delivery pipe (8), and the water guide pipe (7) is provided with a valve.

9. A steam condensate energy utilization apparatus according to claim 8, characterized by: The pipe port is provided with a shielding push piece (5) which is arranged in an inclined manner and is used for pressurizing the steam input from the pipe port and improving the pushing force on the fan blade.

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