Multi-stage heat exchange heat exchanger device

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to a multistage heat exchange heat exchanger device which comprises a heat exchanger body and a liquid inlet pipe, the liquid inlet pipe is communicated with the top of the heat exchanger body, the end of the liquid inlet pipe is communicated with a filtering barrel, and a filtering mechanism is arranged in the filtering barrel. The filtering mechanism comprises a water inlet pipe which is communicated with the bottom of the filtering barrel; the filter screen is mounted in the filter barrel; one end of the blow-off pipe is communicated with one side of the filter barrel; the electromagnetic valve is connected to the other end of the blow-off pipe; the servo motor is fixedly mounted at the top of the filtering barrel; and one end of the rotating rod is fixedly connected to the output end of the bottom of the servo motor. According to the multistage heat exchange heat exchanger device provided by the utility model, a filtering mechanism can be arranged at the water inlet of the heat exchanger, so that sediments can be effectively prevented from being accumulated on the surface of the heat exchanger, the scaling phenomenon is reduced, and the maintenance cost and the downtime are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchanger technical field, concretely relates to a kind of multistage heat exchange heat exchanger device. BACKGROUND

[0002] Heat exchanger is a kind of equipment for transferring heat, usually used for heat exchange between two different temperature fluids. The structure of multistage heat exchanger usually involves combining multiple individual heat exchange units together, and different temperature differences can be used between each unit to improve heat exchange efficiency.

[0003] The heat exchange medium of heat exchanger, such as water, oil, chemical solution, etc., often contains suspended particles, minerals, chemicals or organic matter. When these media flow through the heat exchanger, solid particles will come into contact with the metal surface and gradually accumulate on the inner wall of the heat exchanger, forming dirt or deposits. Dirt or deposits can increase the thermal resistance between the heat exchanger wall and the fluid, requiring more frequent cleaning and inspection. Frequent shutdown for cleaning not only increases maintenance costs, but also may affect the normal operation of the device. SUMMARY

[0004] The utility model aims at providing a kind of multistage heat exchange heat exchanger device, can install filtering mechanism in the water inlet of heat exchanger, can effectively prevent deposit accumulation on the surface of heat exchanger, reduce fouling phenomenon, and reduce maintenance cost and downtime.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of multistage heat exchange heat exchanger device, including heat exchanger main body and liquid inlet pipe, the liquid inlet pipe is communicated at the top of heat exchanger main body, the end of the liquid inlet pipe is communicated with filter barrel, the inside of the filter barrel is provided with filtering mechanism;The filtering mechanism includes: water inlet pipe, the water inlet pipe is communicated at the bottom of filter barrel;Filter screen, the filter screen is installed in the inside of filter barrel;Blowdown pipe, one end of the blowdown pipe is communicated with one side of filter barrel;Solenoid valve, the solenoid valve is connected to the other end of blowdown pipe;Servo motor, the servo motor is fixedly installed at the top of filter barrel;Rotary lever, one end of the rotary lever is fixedly connected to the output end of servo motor bottom, the other end of the rotary lever is penetrated to the inside of filter barrel and located at the inside of filter screen;Sleeve rod, the sleeve rod is sleeved on the surface of rotary lever;Cleaning plate, cleaning plate is connected to the both ends of sleeve rod.

[0007] Preferably, the both ends of the sleeve rod are provided with movable grooves, the both ends of the cleaning plate are fixedly connected with sleeve pieces, the sleeve pieces are slidingly connected in the inside of movable grooves, the top of the sleeve pieces is threadedly connected with fixing screws, and the fixing screws are penetrated to the top of the sleeve rod.

[0008] Preferably, the top of the sleeve rod is provided with notches on both sides, and the fixing screw is movably arranged in the notches.

[0009] Preferably, the surface of the rotating rod is sleeved with a snap ring, and the snap ring is located at the top and the bottom of the sleeve rod.

[0010] Preferably, the water inlet pipe is in the shape of a tapered cone with a wide top and a narrow bottom, and the water inlet pipe is made of stainless steel.

[0011] Preferably, the cleaning plate is made of rubber, and the cleaning plate is closely adjacent to the inner wall of the filter screen.

[0012] The utility model discloses the technical effect achieved is:

[0013] When the heat exchanger works, the liquid will first enter the inside of the filter barrel through the water inlet pipe, and under the filtration of the filter screen, the impurities in the liquid are intercepted on the inner wall of the filter screen, and then the filtered water is transported to the inside of the heat exchanger main body through the liquid inlet pipe, which can ensure that the water flow is cleaner and has no impurities, thereby improving the heat exchange efficiency, reducing the corrosion and scaling risk of the heat exchanger main body, reducing the complexity and cost of the maintenance of the heat exchanger main body, and improving the operation reliability of heat exchange. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure of the utility model three-dimensional schematic diagram;

[0015] Figure 2 It is the filter barrel sectional three-dimensional schematic diagram of the utility model;

[0016] Figure 3 It is the cleaning rod and sleeve rod split connection three-dimensional schematic diagram of the utility model.

[0017] In the drawings, the component list represented by each sign is as follows:

[0018] 1, heat exchanger main body;101, liquid inlet pipe;2, filter barrel;201, water inlet pipe;202, filter screen;203, blowdown pipe;204, electromagnetic valve;205, servo motor;206, rotating rod;207, sleeve rod;208, cleaning plate;301, movable groove;302, sleeve;303, fixing screw;4, notch;5, snap ring. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear and explicit, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0020] AsFigures 1-3 As shown, a multi-stage heat exchange heat exchanger device, comprising a heat exchanger body 1 and a liquid inlet pipe 101, the liquid inlet pipe 101 is communicated to the top of the heat exchanger body 1, the end of the liquid inlet pipe 101 is communicated with a filter bucket 2, the inside of the filter bucket 2 is provided with a filtering mechanism; the filtering mechanism comprises: a water inlet pipe 201, the water inlet pipe 201 is communicated to the bottom of the filter bucket 2; a filter screen 202, the filter screen 202 is installed in the inside of the filter bucket 2; a blowdown pipe 203, one end of the blowdown pipe 203 is communicated to one side of the filter bucket 2; a solenoid valve 204, the solenoid valve 204 is connected to the other end of the blowdown pipe 203; a servo motor 205, the servo motor 205 is fixedly installed on the top of the filter bucket 2; a rotating rod 206, one end of the rotating rod 206 is fixedly connected to the output end of the bottom of the servo motor 205, the other end of the rotating rod 206 penetrates into the inside of the filter bucket 2 and is located on the inside of the filter screen 202; a sleeve rod 207, the sleeve rod 207 is sleeved on the surface of the rotating rod 206; a cleaning plate 208, the cleaning plate 208 is connected to both ends of the sleeve rod 207, through the cooperation of the filtering mechanism, solid impurities, suspended solids and small particles in the water can be effectively removed, preventing these impurities from blocking the heat exchanger body 1 pipe or depositing on the heat exchange surface, the clean water flow can pass through the heat exchanger body 1 more smoothly, improve the heat exchange efficiency, ensure the smooth progress of the heat exchange process, also can reduce the accumulation of dirt and scale in the heat exchanger body 1, reduce the frequency of cleaning and maintenance, not easy to be blocked by dirt, the normal operation of the heat exchanger body 1 is more stable, thereby reducing the cleaning and maintenance cost, at the same time, the impurities intercepted in the inner wall of the filter screen 202 can be automatically cleaned by the cleaning plate 208, and the cleaned impurities can be discharged through the blowdown pipe 203 and the solenoid valve 204 by opening the solenoid valve 204, the impurities in the inner wall of the filter screen 202 are automatically cleaned, reducing manual intervention, not only reducing the frequency of manual cleaning, but also saving manpower and time cost, effectively preventing the accumulation and blockage of impurities on the filter screen 202, ensuring the smooth operation of the filtering mechanism.

[0021] As Figure 3As shown, the two ends of the sleeve rod 207 are provided with movable grooves 301, and the two ends of the cleaning plate 208 are fixedly connected with sleeve pieces 302, which are slidingly connected in the inside of the movable grooves 301. The top of the sleeve piece 302 is threadedly connected with a fixing screw 303, which penetrates the top of the sleeve rod 207. When the cleaning plate 208 is used for a long time to clean the inner wall of the filter screen 202, the cleaning plate 208 will be worn to a certain extent. The staff can loosen the fixing screw 303, and then adjust the distance between the cleaning plate 208 and the filter screen 202. When adjusting the cleaning plate 208, the sleeve piece 302 can slide in the inside of the movable groove 301. After the adjustment is completed, the fixing screw 303 can be turned downward again, and the sleeve piece 302 can be fixed in the inside of the movable groove 301 through the screw. Meanwhile, the fixing screw 303 is made of stainless steel, has strong corrosion resistance, and has a long service life.

[0022] As shown in the Figure 3 As shown, the two sides of the top of the sleeve rod 207 are provided with notches 4, and the fixing screw 303 is movably arranged in the inside of the notch 4. The design of the notch 4 can make the fixing screw 303 move in the notch 4, so that the position of the fixing screw 303 can be adjusted in the notch 4, thereby realizing different fixing points or adjustment ranges. In this way, the position of the cleaning plate 208 at the two ends of the sleeve rod 207 can be adjusted according to actual needs, so as to ensure flexibility and adaptability.

[0023] As shown in the Figures 2-3 As shown, the surface of the rotating rod 206 is sleeved with a snap ring 5, and the snap ring 5 is located at the top and bottom of the sleeve rod 207. The snap ring 5 located at the top and bottom of the sleeve rod 207 can effectively limit the sleeve rod 207 to the correct position on the surface of the rotating rod 206, preventing displacement or loosening during use.

[0024] As shown in the Figure 2 As shown, the shape of the water inlet pipe 201 is a long and narrow tapered shape, and the water inlet pipe 201 is made of stainless steel. The tapered design of the water inlet pipe 201 can help the water flow smoothly into the filter barrel 2. As the water flow gradually passes through the water inlet pipe 201, the flow rate will increase at the narrowing part of the water inlet pipe 201, and the flow of the fluid will become more stable, reducing the disturbance and turbulence of the fluid and optimizing the distribution of the water flow, so that the water flow in the filter barrel 2 is more uniform, improving the filtering effect.

[0025] As shown in the Figures 2-3 As shown, the material of the cleaning plate 208 is rubber, and the cleaning plate 208 is in close proximity to the inner wall of the filter screen 202. The rubber material has good flexibility and elasticity, and can well adapt to the inner wall of the filter screen 202. When the cleaning plate 208 is in close proximity to the inner wall of the filter screen 202, the flexibility of the rubber can ensure that the cleaning plate 208 is tightly attached to the surface of the filter screen 202, thereby improving the cleaning effect.

[0026] The working principle of the utility model is: when the heat exchanger works, liquid will first enter into the inside of filter bucket 2 through water inlet pipe 201, and under the filtration of filter screen 202, the impurities in the liquid are intercepted on the inner wall of filter screen 202, and then the filtered water will be transported into the inside of heat exchanger main body 1 through liquid inlet pipe 101, which can ensure that the water flow is cleaner and has no impurities, so that the heat exchange efficiency can be improved, and the corrosion and scaling risk of heat exchanger main body 1 is reduced, the complexity and cost of heat exchanger main body 1 maintenance are reduced, so that the operation reliability of heat exchange is improved, when the filter mechanism is used for a long time, the inner wall of filter screen 202 will be adhered and adsorbed with more impurities, then servo motor 205 can be operated and rotary rod 206 is driven to rotate, rotary rod 206 rotation can simultaneously drive sleeve rod 207 and cleaning plate 208 to rotate, when cleaning plate 208 rotates, the impurities on the inner wall of filter screen 202 can be automatically cleaned, then the impurities will flow upwards along the water flow, at the same time, electromagnetic valve 204 is opened, so that the dirt can be discharged through blowdown pipe 203 and electromagnetic valve 204.

[0027] The above only is the preferred implementation of the utility model, it should be pointed out that, for ordinary technical personnel in this technical field, under the premise of not departing from the principle of the utility model, still can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to conventional means in the field.

Claims

1. A multi-stage heat exchanger device of heat exchanger, comprising a heat exchanger body (1) and a liquid inlet pipe (101) which is communicated with the top of the heat exchanger body (1), characterized in that: The end of the liquid inlet pipe (101) is communicated with a filter bucket (2), and the inside of the filter bucket (2) is provided with a filtering mechanism; The filtering mechanism comprises: a water inlet pipe (201) communicated with the bottom of the filter bucket (2); A filter screen (202) installed in the inside of the filter bucket (2); A blow-off pipe (203) with one end communicated with one side of the filter bucket (2); An electromagnetic valve (204) connected to the other end of the blow-off pipe (203); A servo motor (205) fixedly installed on the top of the filter bucket (2); A rotating rod (206) with one end fixedly connected to the output end of the bottom of the servo motor (205) and the other end penetrating into the inside of the filter bucket (2) and located on the inside of the filter screen (202); A sleeve rod (207) sleeved on the surface of the rotating rod (206); A cleaning plate (208) connected to both ends of the sleeve rod (207).

2. A multi-stage heat exchanging heat exchanger apparatus according to claim 1, wherein: Both ends of the sleeve rod (207) are provided with movable grooves (301), both ends of the cleaning plate (208) are fixedly connected with sleeve pieces (302), the sleeve pieces (302) are slidingly connected in the inside of the movable grooves (301), the top of the sleeve piece (302) is screwedly connected with a fixing screw (303) penetrating through the top of the sleeve rod (207).

3. A multi-stage heat exchanging heat exchanger apparatus according to claim 2, wherein: Both sides of the top of the sleeve rod (207) are provided with notches (4), and the fixing screw (303) is movably arranged in the inside of the notches (4).

4. A multi-stage heat exchanging heat exchanger apparatus according to claim 1, wherein: The surface of the rotating rod (206) is sleeved with a clamping ring (5) located at the top and the bottom of the sleeve rod (207) respectively.

5. A multi-stage heat exchanging heat exchanger apparatus according to claim 1, wherein: The shape of the water inlet pipe (201) is a tapered shape with the top being wide and the bottom being narrow, and the water inlet pipe (201) is made of stainless steel.

6. A multi-stage heat exchanging heat exchanger apparatus according to claim 1, wherein: The material of the cleaning plate (208) is rubber, and the cleaning plate (208) is closely adjacent to the inner wall of the filter screen (202).

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