Water tank preheating type evaporator

Abstract

The utility model discloses a water tank preheating type evaporator which comprises an evaporation tank, a plurality of heat exchange coils are evenly arranged in the evaporation tank, heat exchange fins integrally extend out of the exteriors of the heat exchange coils in an annular mode, and a main inlet pipe and a main outlet pipe are arranged on the outer side of the evaporation tank. The main inlet pipe and the main outlet pipe are respectively connected with a plurality of heat exchange coil pipes, and a preheating box is arranged on one side of the evaporation box; the utility model relates to the technical field of evaporators, in particular to a water tank preheating type evaporator, which is characterized in that an independent controllable preheating tank is arranged in front of an inlet of the evaporator, preheating water is used as an intermediate heating medium and a temperature control rod for accurate heating, and heating fins and heat-conducting fins which are arranged alternately are arranged in a relatively staggered manner, so that efficient heat transfer is realized on the premise of saving space; the working medium entering the evaporator is uniformly and fully preheated, the working medium is ensured to enter an evaporation stage in an ideal state, and the problem of low gasification efficiency caused by the fact that the temperature cannot be effectively controlled by a traditional direct connection pipeline is thoroughly solved.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically a water tank preheating evaporator. Background Technology

[0002] In modern industrial production, the evaporator is an important component of the refrigeration system. Refrigerant enters the evaporator to vaporize and absorb heat, thereby reducing the external temperature. During the evaporator's operation, a high-temperature working fluid needs to enter the coil to absorb external heat and vaporize. Currently, for ease of installation, the working fluid is mainly connected to the compressor and evaporator via pipes. While this is convenient, it doesn't allow for effective temperature control, resulting in some working fluid failing to vaporize properly after entering the evaporator, thus affecting its efficiency. Therefore, this project was developed to address these issues through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a water tank preheating evaporator, which solves the existing background technology problems.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a water tank preheating evaporator, including an evaporation tank, in which a plurality of heat exchange coils are evenly arranged, and heat exchange fins are integrally extended from the outside of the heat exchange coils in an annular shape. A main inlet pipe and a main outlet pipe are provided on the outside of the evaporation tank, and the main inlet pipe and the main outlet pipe are respectively connected to the plurality of heat exchange coils. A preheating box is provided on one side of the evaporation tank.

[0005] The preheating box is installed on one side of the evaporator via a support frame. The preheating box is equipped with a water supply pipe and contains preheated water.

[0006] A temperature control plate is provided on one side of the preheating box. Several heating fins are provided on the temperature control plate to contact the preheated water. Several control slots are arranged in a linear array on the temperature control plate, and several temperature control rods are assembled in the several control slots.

[0007] The preheating box is equipped with a heat exchange distributor, which is connected to the main inlet pipe and the pipe ends of several heat exchange coils. Several heat-conducting fins are arranged in a linear array on the heat exchange distributor, and the heat-conducting fins and heating fins are arranged opposite to each other and alternately.

[0008] Preferably, the temperature control rods are a plurality of electric heating rods, and the temperature control rods are in contact with the inner wall of the control tank.

[0009] Preferably, a liquid level detector is provided on the top surface of the preheating box, and a water supply pipe is provided on one side of the top of the preheating box.

[0010] Preferably, the support frame is a rectangular frame, and the support frame is connected to the evaporator and the preheating box respectively by screws.

[0011] Preferably, the heat exchanger is equipped with a temperature controller connected to several temperature control rods.

[0012] Preferably, the heat exchanger is a trapezoidal hollow shell. One end of the heat exchanger is provided with several diversion channels that penetrate one side wall of the preheating box. The several diversion channels are respectively connected to the ends of several heat exchange coils. The other end of the heat exchanger is provided with an inlet channel that penetrates the other side wall of the preheating box. The main inlet pipe is connected to the inlet channel. Beneficial effects

[0013] This utility model provides a water tank preheating evaporator. It has the following advantages: This water tank preheating evaporator, by setting up an independent and controllable preheating tank before the evaporator inlet, utilizes preheated water as an intermediate heat medium and a temperature control rod for precise heating. Through alternating arrangement of heating and heat-conducting fins, efficient heat transfer is achieved while saving space. This uniformly and fully preheats the working fluid entering the evaporator, ensuring that the working fluid enters the evaporation stage in an ideal state, completely solving the problem of low vaporization efficiency caused by the inability to effectively control temperature in traditional direct-connection pipes. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional structural schematic diagram of a water tank preheating evaporator according to the present invention.

[0015] Figure 2 This is a second three-dimensional structural diagram of a water tank preheating evaporator according to the present invention.

[0016] Figure 3 This is a third-dimensional structural diagram of a water tank preheating evaporator according to the present invention.

[0017] In the diagram: 1. Evaporator; 2. Heat exchange coil; 3. Heat exchange fins; 4. Main inlet pipe; 5. Main outlet pipe; 6. Preheating box; 7. Temperature control plate; 8. Control tank; 9. Temperature control rod; 10. Heat exchange distributor; 11. Heat-conducting fins; 12. Liquid level detector; 13. Water supply pipe; 101. Diversion channel; 102. Inlet channel. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides an implementation scheme: During the application of the evaporator, a high-temperature working fluid needs to enter the coil to absorb external heat and vaporize. Currently, for ease of arrangement, the working fluid is mainly connected to the compressor and evaporator through pipes. Although this is convenient to operate, it cannot effectively control the temperature, resulting in some working fluid failing to vaporize properly after entering the evaporator, thus affecting the evaporator's working efficiency.

[0020] To address the problem of poor vaporization caused by insufficient preheating of the working fluid, this application discloses a water tank preheating evaporator. The evaporator includes an evaporation unit, an evaporation chamber 1, in which several heat exchange coils 2 are evenly arranged. The heat exchange coils 2 extend annularly with heat exchange fins 3 to increase the heat exchange area with the external working fluid. A main inlet pipe 4 and a main outlet pipe 5 are provided on the outside of the evaporation chamber 1. The main inlet pipe 4 delivers the liquid working fluid into the heat exchange coils 2 of the evaporation chamber 1 and delivers the vaporized working fluid to the compressor. The main inlet pipe 4 and the main outlet pipe 5 are respectively connected to several heat exchange coils 2 to form a working fluid circulation loop.

[0021] According to the instruction manual Figure 1-3 It can be seen that a preheating box 6 is provided on one side of the evaporator 1 to precisely preheat the working fluid before it enters the evaporator 1; the preheating box 6 is installed on one side of the evaporator 1 by a support frame, and a water supply pipe 13 is provided on the preheating box 6 to maintain the preheated water level. The preheating box 6 contains a common preheating medium, such as water, as a heat source. A temperature control plate 7 is provided on one side of the preheating box 6. The temperature control plate 7 is immersed in the preheated water. Several heating fins are provided on the temperature control plate 7 to contact the preheated water and increase the heat exchange area. Several control slots 8 are arranged in a linear array on the temperature control plate 7. Several temperature control rods 9 are installed in the several control slots 8 as core heating elements.

[0022] The preheating box 6 is also equipped with a heat exchange distributor 10. The heat exchange distributor 10 is connected to the main inlet pipe 4 and the pipe ends of several heat exchange coils 2. It is responsible for evenly distributing the working fluid from the compressor to each heat exchange coil 2. Several heat-conducting fins 11 are arranged in a linear array on the heat exchange distributor 10. The heat-conducting fins 11 are arranged opposite to and alternately with several heating fins on the temperature control plate 7 to form a dense heat exchange area.

[0023] Workflow: High-temperature, high-pressure liquid or gas-liquid mixture from the compressor first passes through the main inlet pipe 4, which is equipped with a temperature detector to detect the working fluid temperature. The working fluid then enters the heat exchanger 10 inside the preheating chamber 6. In the heat exchanger 10, the working fluid flows through its internal channels and is evenly distributed. Simultaneously, based on the working fluid temperature, the temperature control rod 9 is energized to generate heat and its power is controlled. The heat is transferred to the heating fins on the temperature control plate 7. The heating fins transfer the heat to the surrounding preheated water. After the preheated water is heated, its heat is transferred to the heat-conducting fins 11 on the heat exchanger 10, which are arranged alternately with the heating fins, through heat convection and heat conduction. The heat-conducting fins 11 absorb the heat from the preheated water and efficiently conduct the heat to the working fluid flowing through the heat exchanger 10. After sufficient and precise preheating in the preheating chamber 6, the working fluid temperature is significantly increased, approaching or reaching its saturation temperature at that pressure. The preheated working fluid flows out from the heat exchange distributor 10 and enters the heat exchange coils 2 inside the evaporator 1 evenly through the connecting pipes. In the heat exchange coils 2, the fully preheated working fluid can absorb the heat from the working fluid inside and outside the evaporator 1 more efficiently and evenly, and quickly and completely vaporize. Then the gaseous working fluid returns to the compressor through the main outlet pipe 5. This preheating process significantly improves the state of the working fluid when it enters the evaporator, solves the problem of poor vaporization caused by insufficient working fluid temperature, and improves the overall working efficiency and stability of the evaporator.

[0024] As a preferred option, furthermore, the temperature control rods 9 are several electric heating rods. The temperature control rods 9 are in contact with the inner wall of the control tank 8. The function of the temperature control rods 9 is to serve as the core heat source. They are inserted into the control tank 8 and in close contact with the tank wall to ensure that the generated heat can be efficiently transferred to the temperature control plate 7. The electric heating rods can easily achieve precise temperature control by adjusting the current.

[0025] As a preferred option, the top surface of the preheating box 6 is equipped with a liquid level detector 12, and a water supply pipe 13 is installed on one side of the top of the preheating box 6. The function of the liquid level detector 12 is to monitor the water level in the preheating box 6 in real time. When the water level is lower than the set value, a signal is sent or the water supply pipe 13 is automatically activated to replenish water, ensuring that the preheated water always submerges the key heat exchange parts of the temperature control plate 7 and the heat exchange distributor 10, and maintaining a stable preheating capacity.

[0026] As a preferred option, the support frame is a rectangular frame, which is connected to the evaporator 1 and the preheating box 6 by screws to provide stable support for the preheating box 6 and ensure that its position relative to the evaporator 1 is fixed.

[0027] As a preferred option, the heat exchanger 10 is further equipped with a temperature controller connected to several temperature control rods 9. The function of the temperature controller is to monitor the temperature of the working fluid flowing through the heat exchanger 10 in real time, and automatically adjust the power output of the temperature control rods 9 according to the set target temperature value. Commonly, PID control can be used to ensure that the preheating effect is stable at the best state.

[0028] As a preferred embodiment, the heat exchanger 10 is a trapezoidal hollow shell. One end of the heat exchanger is provided with several diversion channels 101 that penetrate one side wall of the preheating box 6. The diversion channels 101 are respectively connected to the ends of several heat exchange coils 2. The other end of the heat exchanger is provided with an inlet channel 102 that penetrates the other side wall of the preheating box 6. The main inlet pipe 4 is connected to the inlet channel 102. The trapezoidal structure is used to optimize the flow distribution of the internal fluid and reduce flow resistance. The inlet channel 102 is used to receive the working fluid from the main inlet pipe 4. The working fluid flows in the trapezoidal hollow shell and is evenly distributed into the several diversion channels 101. The function of the diversion channels 101 is to deliver the preheated working fluid separately and in equal amounts to the corresponding heat exchange coils 2 in the evaporating box 1, so as to avoid poor vaporization of some coils due to uneven distribution of working fluid.

[0029] In summary, this water tank preheating evaporator, by setting up an independent and controllable preheating box 6 before the evaporator inlet, uses preheated water as an intermediate heat medium and a temperature control rod 9 for precise heating. Through the alternating arrangement of heating fins and heat-conducting fins 11, it achieves efficient heat transfer while saving space, uniformly and fully preheating the working fluid entering the evaporator, ensuring that the working fluid enters the evaporation stage in an ideal state, and completely solving the problem of low vaporization efficiency caused by the inability to effectively control temperature in traditional direct-connection pipes.

[0030] 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 water tank preheating type evaporator, comprising an evaporation tank (1), a plurality of heat exchange coils (2) are uniformly arranged in the evaporation tank (1), the outside of the heat exchange coil (2) extends out heat exchange fins (3) in a ring shape, a total inlet pipe (4) and a total outlet pipe (5) are arranged on the outside of the evaporation tank (1), the total inlet pipe (4) and the total outlet pipe (5) are connected with the plurality of heat exchange coils (2) respectively, characterized in that, One side of the evaporation box (1) is provided with a preheating box (6); The preheating box (6) is installed on one side of the evaporation box (1) through a support frame, the preheating box (6) is provided with a water supplement pipe (13), and the preheating box (6) contains preheating water; One side of the preheating box (6) is provided with a temperature control plate (7), a plurality of heating fins are arranged on the temperature control plate (7) and are in contact with the preheating water, a plurality of control grooves (8) are arranged on the temperature control plate (7) in a linear array, and a plurality of temperature control rods (9) are arranged in the control grooves (8); The preheating box (6) is provided with a heat exchange diverter (10), the heat exchange diverter (10) is connected with the total inlet pipe (4) and the pipe ends of the plurality of heat exchange coils (2), a plurality of heat conduction fins (11) are arranged on the heat exchange diverter (10) in a linear array, and the plurality of heat conduction fins (11) are arranged opposite to and alternately with the plurality of heating fins.

2. A waterbox pre-heat type evaporator according to claim 1, wherein The plurality of temperature control rods (9) are a plurality of electric heating rods, and the temperature control rods (9) are in contact with the inner walls of the control grooves (8).

3. A waterbox preheated evaporator as claimed in claim 2, wherein The top surface of the preheating box (6) is provided with a liquid level detector (12), and one side of the top of the preheating box (6) is provided with a water supplement pipe (13).

4. A waterbox preheated evaporator as claimed in claim 3, wherein The support frame is a rectangular frame, and the support frame is connected with the evaporation box (1) and the preheating box (6) through screws.

5. A water tank pre-heat type evaporator according to claim 4, wherein The heat exchange diverter (10) is provided with a temperature controller connected with the plurality of temperature control rods (9).

6. A water tank pre-heat type evaporator according to claim 5, wherein The heat exchange diverter (10) is a trapezoidal cavity shell, one end of the diverter is provided with a plurality of diverter flow channels (101) penetrating one side wall surface of the preheating box (6), the plurality of diverter flow channels (101) are connected with the end portions of the plurality of heat exchange coils (2) respectively, the other end of the diverter is provided with an inlet flow channel (102) penetrating the other side wall surface of the preheating box (6), and the total inlet pipe (4) communicates with the inlet flow channel (102).

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