A heat network heater

Abstract

The utility model relates to heat -supply network heater technical field and disclose a kind of heat -supply network heater, including heat exchange cylinder and liquid storage tank, servo motor is fixedly installed on the side outer wall of liquid storage tank, servo motor output end is fixedly connected with first bar, and first bar rod wall is fixedly connected with helical blade, first bar one end is fixedly connected with first pulley, and pump body is installed on the side outer wall of liquid storage tank, and pump body output end is fixedly connected with connecting pipe, second valve is set in the connecting pipe wall near pump body, ring cylinder is installed in the connecting pipe wall near second valve, second bar is rotatably connected in the middle part of ring cylinder, second bar one end is fixedly connected with second pulley, and transmission belt is transmission connected between second pulley and first pulley, and the rod wall of second bar is fixedly connected with disturbance rod in ring cylinder, the utility model passes through the double-path design of connecting pipe and L-shaped communication pipe, can make medicament cover installation pipe upper and lower end area, avoid local medicament concentration deficiency, further strengthen anticorrosion uniformity.

Description

Technical Field

[0001] This utility model relates to the field of heating network heater technology, specifically a heating network heater. Background Technology

[0002] In a centralized heating system, the heat exchanger is the core heat exchange equipment that connects the heat source (such as a thermal power plant or a district boiler room) with the heat users (residential communities or industrial plants). Its core function is to efficiently transfer the heat from the high-temperature steam (or high-temperature hot water) generated by the heat source to the heat exchanger circulating water, and then the circulating water delivers the heat to the end users to meet their heating and production heat needs.

[0003] Publication (Announcement) No.: CN218349276U describes a heat network heater for thermal power plants, which has the following advantages: it achieves uniform steam transfer and heat conduction through multiple evenly distributed nozzles, solving the problem that existing steam cannot be evenly distributed inside the heating pipes, thereby avoiding the problem of uneven heating of water inside the tank. However, existing technologies have the following drawbacks: the inner wall of the condensate outlet pipe of the heating network heater generally lacks a specific anti-corrosion design. During steam condensation, the condensate often becomes weakly acidic due to the presence of dissolved oxygen and carbon dioxide. Long-term flow through the outlet pipe easily corrodes the pipe wall, leading to pipe thinning and increased leakage risk. Simultaneously, the corrosion products carried by the acidic condensate accelerate scaling inside the pipe, reducing heat exchange efficiency and shortening equipment lifespan. To address these issues, we propose a heating network heater. Utility Model Content

[0004] The purpose of this invention is to provide a heat network heater to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat exchanger, comprising a heat exchange cylinder and a liquid storage tank, wherein expansion joints are installed on both ends of the heat exchange cylinder wall, and an installation pipe is provided at the bottom end of the heat exchange cylinder, and a first valve is installed on the installation pipe; A servo motor is fixedly installed on one side of the outer wall of the liquid storage tank. A first rod is fixedly connected to the output end of the servo motor and extends through to the outer end of the liquid storage tank. A spiral blade is fixedly connected to the wall of the first rod, and a first pulley is fixedly connected to one end of the first rod. A pump body is installed on one side of the outer wall of the liquid storage tank. A connecting pipe is fixedly connected to the output end of the pump body and is connected to the inner end of the installation pipe. A second valve is provided on the wall of the connecting pipe near the pump body. An annular cylinder is installed on the wall of the connecting pipe near the second valve. A second rod is rotatably connected through the middle of the annular cylinder. A second pulley is fixedly connected to one end of the second rod. A transmission belt is connected between the second pulley and the first pulley. A disturbance rod is fixedly connected to the wall of the second rod in the annular cylinder. An L-shaped connecting pipe is embedded between the annular cylinder and the installation pipe, and a third valve is provided on the connecting pipe.

[0006] Preferably, tube boxes are provided at both ends of the heat exchange cylinder, and supports are fixedly connected to both sides of the bottom end of the heat exchange cylinder.

[0007] Preferably, a steam inlet pipe is embedded on one side of the top of the heat exchange cylinder, and a condensate outlet pipe is embedded on the other side of the bottom of the heat exchange cylinder, and the condensate outlet pipe is connected to the mounting pipe by bolts through a flange.

[0008] Preferably, an inlet pipe is embedded on one side of the top of the liquid storage tank, and the pump input end is connected to and distributed to the lower end of the liquid storage tank.

[0009] Preferably, the diameter of the rotating opening of the disturbance rod is smaller than the diameter of the ring cylinder.

[0010] Compared with the prior art, this utility model Benefit 1: The servo motor drives the first rod to rotate, which on one hand stirs the corrosion inhibitor in the storage tank through the spiral blades, preventing sedimentation and stratification of the agent components and ensuring uniform initial concentration; on the other hand, the linkage of the first pulley, transmission belt, and second pulley drives the second rod and the disturbance rod to rotate at high speed within the ring cylinder, shearing and dispersing the agent delivered by the pump, improving its mixing effect with the condensate. Simultaneously, the dual-path design of the connecting pipe and the L-shaped connecting pipe allows the agent to cover the upper and lower ends of the installation pipe, avoiding insufficient local agent concentration, further enhancing the uniformity of corrosion protection, and thus improving the service life of the pipeline. Benefit 2: Using only a servo motor as a power source, the stirring of the agent in the storage tank and the disturbance of the agent in the ring cylinder are completed simultaneously, eliminating the need for multiple additional drive mechanisms, simplifying the structure and reducing equipment energy consumption. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0012] In the diagram: 1. Heat exchanger cylinder; 10. Expansion joint; 11. Steam inlet pipe; 12. Condensate outlet pipe; 13. Installation pipe; 14. First valve; 2. Liquid storage tank; 20. Liquid inlet pipe; 21. Servo motor; 22. First rod; 23. Spiral blade; 220. First pulley; 3. Pump body; 31. Connecting pipe; 310. Second valve; 32. Ring cylinder; 33. Second rod; 330. Second pulley; 30. Drive belt; 34. Disturbance rod; 35. Connecting pipe; 36. Third valve. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3 The present invention provides the following technical solution: Example 1: A heat exchanger includes a heat exchange cylinder 1 and a liquid storage tank 2. Expansion joints 10 are installed on both ends of the heat exchange cylinder 1. An installation pipe 13 is provided at the bottom of the heat exchange cylinder 1. A first valve 14 is installed on the installation pipe 13. Pipe boxes are provided at both ends of the heat exchange cylinder 1. Supports are fixedly connected to both sides of the bottom of the heat exchange cylinder 1. A steam inlet pipe 11 is embedded on one side of the top of the heat exchange cylinder 1. A condensate outlet pipe 12 is embedded on the other side of the bottom of the heat exchange cylinder 1, and the condensate outlet pipe 12 is bolted to the installation pipe 13 through a flange.

[0015] Among them, the tube boxes at both ends of the heat exchange cylinder 1 are used for the distribution and sealing isolation of the tube side medium to ensure the orderly flow of the heat exchange medium; the support at the bottom of the heat exchange cylinder 1 is used to provide stable support for the whole equipment and ensure the structural stability during operation; and the expansion joint 10 is designed to specifically solve the problem of thermal expansion difference between the shell and the internal tube bundle due to the temperature difference of the medium during the operation of the heat exchanger, thereby ensuring the normal operation of the equipment. Steam inlet pipe 11 provides a channel for high-temperature steam to enter the shell side of heat exchanger 1; condensate outlet pipe 12 is used to discharge condensate after heat exchange; flange and bolts realize a detachable sealed connection between condensate outlet pipe 12 and mounting pipe 13, which is convenient for disassembly and maintenance.

[0016] In operation, high-temperature steam enters the shell side of heat exchanger 1 through steam inlet pipe 11, exchanges heat with the circulating water in the tube side, and condenses into saturated condensate, which is collected in installation pipe 13 through condensate outlet pipe 12. Opening the first valve 14 allows the condensate to be discharged along installation pipe 13 to the subsequent recovery system. The two-end tube boxes achieve separate flow guidance and sealing isolation of the tube side medium, the supports ensure stable load-bearing of heat exchanger 1, and the flange and bolt connection structure meets the requirements for quick assembly and disassembly and sealing of condensate outlet pipe 12 and installation pipe 13.

[0017] Example 2: The technical solution of this example, which differs from Example 1, includes: a servo motor 21 is fixedly installed on one side of the outer wall of the storage tank 2; a first rod 22 is fixedly connected to the output end of the servo motor 21, and the first rod 22 extends through to the outer end of the storage tank 2; a spiral blade 23 is fixedly connected to the wall of the first rod 22; a first pulley 220 is fixedly connected to one end of the first rod 22; a pump body 3 is installed on one side of the outer wall of the storage tank 2; a connecting pipe 31 is fixedly connected to the output end of the pump body 3, and the connecting pipe 31 is connected to the inner end of the mounting pipe 13; a second valve 310 is provided on the wall of the connecting pipe 31 near the pump body 3; and a second valve 310 is provided on the wall of the connecting pipe 31 near the first... A ring cylinder 32 is installed at the second valve 310. A second rod 33 is rotatably connected through the middle of the ring cylinder 32. A second pulley 330 is fixedly connected to one end of the second rod 33. A transmission belt 30 is connected between the second pulley 330 and the first pulley 220. A disturbance rod 34 is fixedly connected to the wall of the second rod 33 at the ring cylinder 32. An L-shaped connecting pipe 35 is embedded between the ring cylinder 32 and the mounting pipe 13. A third valve 36 is installed on the connecting pipe 35. An inlet pipe 20 is embedded on one side of the top of the liquid storage tank 2. The input end of the pump body 3 is connected to and distributed to the lower end of the liquid storage tank 2. The rotation diameter of the disturbance rod 34 is smaller than the diameter of the ring cylinder 32.

[0018] The inlet pipe 20 is used to add corrosion inhibitor to the storage tank 2; the pump body 3 extends to the lower end of the storage tank 2, which can efficiently extract the agent in the tank and avoid residue and waste. The rotation diameter of the disturbance rod 34 is smaller than that of the ring cylinder 32 to avoid obstruction of the pump body 3 during normal liquid delivery to the connecting pipe 31.

[0019] In use, first inject the corrosion inhibitor into the storage tank 2 through the inlet pipe 20. After opening the second valve 310, the pump body 3 draws the corrosion inhibitor from the storage tank 2 and delivers it to the ring cylinder 32 through the connecting pipe 31. At this time, close the first valve 14 to block the outlet of the installation pipe 13 and open the third valve 36 so that the agent flows into the closed pipeline composed of the installation pipe 13 and the condensate outlet pipe 12 through the connecting pipe 35.

[0020] During operation, the servo motor 21 drives the second rod 33 to rotate at high speed within the annular cylinder 32 through the linkage of the first pulley 220, the transmission belt 30, and the second pulley 330, thereby creating a strong shearing and dispersion of the incoming agent. Simultaneously, the dual-path design of the connecting pipe 31 and the L-shaped connecting pipe 35 allows the agent to enter the upper middle and bottom areas of the installation pipe 13 respectively. Combined with the stirring action of the disturbance rod 34, this promotes thorough mixing of the corrosion inhibitor and the residual condensate in the pipeline, ensuring that all areas of the inner wall of the installation pipe 13 and the condensate outlet pipe 12 are exposed to a uniform concentration of the corrosion inhibitor, thus enhancing the overall corrosion protection effect.

[0021] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger includes a heat exchange cylinder (1) and a liquid storage tank (2), wherein expansion joints (10) are installed on both ends of the heat exchange cylinder (1), and an installation pipe (13) is provided at the bottom end of the heat exchange cylinder (1), and a first valve (14) is installed on the installation pipe (13). Its features are: A servo motor (21) is fixedly installed on one side of the outer wall of the liquid storage tank (2). A first rod (22) is fixedly connected to the output end of the servo motor (21), and the first rod (22) extends through to the outer end of the liquid storage tank (2). A spiral blade (23) is fixedly connected to the rod wall of the first rod (22). A first pulley (220) is fixedly connected to one end of the first rod (22). A pump body (3) is installed on one side of the outer wall of the liquid storage tank (2). A connecting pipe (31) is fixedly connected to the output end of the pump body (3), and the connecting pipe (31) is connected to the inner end of the mounting pipe (13). A second valve is provided on the pipe wall of the connecting pipe (31) near the pump body (3). Door (310), the connecting pipe (31) is fitted with an annular cylinder (32) near the second valve (310), the annular cylinder (32) is rotatably connected to the middle of the annular cylinder (32), one end of the second rod (33) is fixedly connected to a second pulley (330), the second pulley (330) and the first pulley (220) are connected by a transmission belt (30), the rod wall of the second rod (33) is fixedly connected to the annular cylinder (32) with a disturbance rod (34), the annular cylinder (32) and the mounting pipe (13) are fitted with an L-shaped connecting pipe (35), and a third valve (36) is provided on the connecting pipe (35).

2. A heating network heater according to claim 1, characterized in that: The heat exchange cylinder (1) is provided with tube boxes at both ends, and supports are fixedly connected to both sides of the bottom end of the heat exchange cylinder (1).

3. A heating network heater according to claim 1, characterized in that: A steam inlet pipe (11) is embedded on one side of the top of the heat exchange cylinder (1), and a condenser outlet pipe (12) is embedded on the other side of the bottom of the heat exchange cylinder (1). The condenser outlet pipe (12) is bolted to the mounting pipe (13) through a flange.

4. A heating network heater according to claim 1, characterized in that: The liquid storage tank (2) has an inlet pipe (20) embedded on one side of its top, and the pump body (3) has its input end connected to and distributed to the lower end of the liquid storage tank (2).

5. A heating network heater according to claim 1, characterized in that: The diameter of the rotating part of the disturbance rod (34) is smaller than the diameter of the ring cylinder (32).

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