阅读说明：本技术 一种精准控制出口温度的螺旋板换热器 (Spiral plate heat exchanger capable of accurately controlling outlet temperature ) 是由 余超 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种精准控制出口温度的螺旋板换热器,具体涉及换热器领域,包括螺旋板换热器,螺旋板换热器的底端固定安装有流量控制座,螺旋板换热器的输入端固定连接有液流换热入口,液流换热入口的另一端固定连接流速控制阀,螺旋板换热器的输出端固定连接有第一液流出口和第二液流出口,第一液流出口和第二液流出口的内部固定安装有温度传感器,螺旋板换热器的内部滑动安装有螺旋活塞。本发明通过利用螺旋活塞的升降改变螺旋板换热器内部容腔体积从而在液流流速相同的情况下增加或减少单位时间内螺旋板换热器内部液流的存量,改变液流之间的换热量,从而改变出口端换热液流的温度,精准控制液流出口温度。(The invention discloses a spiral plate heat exchanger capable of accurately controlling outlet temperature, and particularly relates to the field of heat exchangers. According to the invention, the volume of the inner cavity of the spiral plate heat exchanger is changed by utilizing the lifting of the spiral piston, so that the stock of liquid flow in the spiral plate heat exchanger in unit time is increased or reduced under the condition of the same liquid flow velocity, and the heat exchange quantity among the liquid flows is changed, thereby changing the temperature of the heat exchange liquid flow at the outlet end and accurately controlling the temperature of the liquid flow outlet.)

1. The utility model provides a spiral plate heat exchanger of accurate control outlet temperature, includes spiral plate heat exchanger (1), its characterized in that: the bottom fixed mounting of spiral plate heat exchanger (1) has flow control seat (2), the input fixedly connected with liquid stream heat transfer entry (3) of spiral plate heat exchanger (1), the other end fixedly connected with of liquid stream heat transfer entry (3) is located the inside velocity of flow control valve (22) of flow control seat (2), the input fixedly connected with liquid stream entry (21) of velocity of flow control valve (22), the output fixedly connected with first liquid outlet (6) and second liquid outlet (8) of spiral plate heat exchanger (1), the inside fixed mounting of first liquid outlet (6) and second liquid outlet (8) has temperature sensor (7), the inside slidable mounting of spiral plate heat exchanger (1) has spiral piston (10), the top surface fixed mounting of spiral piston (10) has piston adjusting rod (4), the top surface of the piston adjusting rod (4) is fixedly provided with an adjusting pressure plate (5), and the surface of the flow control seat (2) is fixedly provided with a control panel (9).

2. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the spiral plate heat exchanger is characterized in that a first liquid flow channel (11) and a second liquid flow channel (12) are arranged inside the spiral plate heat exchanger (1), the number of the liquid flow heat exchange inlets (3) is two, the two liquid flow heat exchange inlets (3) are respectively communicated with the inside of the first liquid flow channel (11) and the inside of the second liquid flow channel (12), and the first liquid flow outlet (6) and the second liquid flow outlet (8) are respectively communicated with the end parts of the first liquid flow channel (11) and the second liquid flow channel (12).

3. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the spiral plate heat exchanger (1) is of an integrally formed structure, the spiral plate heat exchanger (1) is a metal copper material component, the spiral plate heat exchanger (1) is formed by twisting a one-piece copper plate, the bottom surface of the spiral plate heat exchanger (1) is of a closed structure, and the top surface of the spiral plate heat exchanger (1) is of an open structure.

4. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the spiral piston is characterized in that a spiral plate groove (101) is formed in the spiral piston (10), the shape and the size of the spiral plate groove (101) are matched with those of the spiral plate heat exchanger (1), and the spiral piston (10) is in interference fit with the inner wall of the spiral plate heat exchanger (1).

5. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the spiral piston (10) is a high-temperature-resistant rubber component, a piston rubber pad is fixedly attached to the bottom surface of the spiral piston (10), and the peripheral side of the piston rubber pad is mutually abutted to the inner wall of the spiral plate heat exchanger (1).

6. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the number of the piston adjusting rods (4) is a plurality, the upper end and the lower end of each piston adjusting rod (4) are fixedly connected with the bottom surface of the adjusting pressing plate (5) and the top surface of the spiral piston (10) respectively, and the piston adjusting rods (4) are uniformly distributed on the inner sides of the spiral piston (10) and the adjusting pressing plate (5).

7. A spiral plate heat exchanger for precise control of outlet temperature as recited in claim 1 wherein: the input of flow rate control valve (22) and the output electric connection of control panel (9), the output of temperature sensor (7) and the input electric connection of control panel (9), control panel (9) are PLC controller or single chip microcomputer structure.

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a spiral plate heat exchanger capable of accurately controlling outlet temperature.

Background

The heat exchanger is widely applied to industrial production, for example, in petrochemical, light industry, medicine, food, medicine, aerospace and other industrial departments, the spiral plate heat exchanger is formed by coiling two parallel metal plates into two spiral channels, heat exchange is carried out between cold and hot fluids through a spiral plate wall, the heat exchange effect of two media is realized, carbon steel, stainless steel, aluminum, copper, platforms and other materials with good heat conductivity are mostly used as the materials, and the heat exchanger is widely applied to petrochemical, chemical, medicine and other industries.

At present, all spiral plate heat exchangers operated in industrial production basically flow cold and hot fluids on two sides of the spiral plates respectively, heat exchange is carried out through the spiral plates, and because the structure of the spiral plate heat exchangers is too simple, the heat conduction quantity in the inner part of the liquid cannot be controlled, the temperature at the liquid flow outlet end of the spiral plate heat exchangers cannot be accurately controlled, and the practicability is poor.

It is therefore desirable to provide a spiral plate heat exchanger with precise control of the outlet temperature.

Disclosure of Invention

In order to overcome the above-mentioned defects in the prior art, an embodiment of the present invention provides a spiral plate heat exchanger capable of accurately controlling an outlet temperature, in which a spiral piston adapted to the spiral plate heat exchanger is provided, a volume of an inner cavity of the spiral plate heat exchanger is changed by lifting and lowering the spiral piston, so as to increase or decrease a stock of liquid flow in the spiral plate heat exchanger per unit time under the condition that liquid flow rates are the same, and a flow rate control valve in a flow control seat is used to perform accurate flow rate adjustment under the control of a control panel, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a spiral plate heat exchanger capable of accurately controlling outlet temperature comprises a spiral plate heat exchanger, wherein a flow control seat is fixedly arranged at the bottom end of the spiral plate heat exchanger, the input end of the spiral plate heat exchanger is fixedly connected with a liquid flow heat exchange inlet, the other end of the liquid flow heat exchange inlet is fixedly connected with a flow speed control valve positioned in the flow control seat, the input end of the flow rate control valve is fixedly connected with a liquid flow inlet, the output end of the spiral plate heat exchanger is fixedly connected with a first liquid flow outlet and a second liquid flow outlet, temperature sensors are fixedly arranged inside the first liquid outlet and the second liquid outlet, a spiral piston is slidably arranged inside the spiral plate heat exchanger, the top surface fixed mounting of screw piston has the piston to adjust the pole, the top surface fixed mounting of piston regulation pole has adjusting plate, the fixed surface of flow control seat installs control panel.

In a preferred embodiment, the spiral plate heat exchanger is internally provided with a first liquid flow channel and a second liquid flow channel, the number of the liquid heat exchange inlets is two, the two liquid heat exchange inlets are respectively communicated with the interiors of the first liquid flow channel and the second liquid flow channel, and the first liquid flow outlet and the second liquid flow outlet are respectively communicated with the ends of the first liquid flow channel and the second liquid flow channel.

In a preferred embodiment, the spiral plate heat exchanger is an integrally formed structure, the spiral plate heat exchanger is a metal copper material member, the spiral plate heat exchanger is formed by twisting a one-piece copper plate, the bottom surface of the spiral plate heat exchanger is of a closed structure, and the top surface of the spiral plate heat exchanger is of an open structure.

In a preferred embodiment, the spiral piston is internally provided with a spiral plate groove, the shape and the size of the spiral plate groove are matched with those of the spiral plate heat exchanger, and the spiral piston is in interference fit with the inner wall of the spiral plate heat exchanger.

In a preferred embodiment, the spiral piston is a high-temperature resistant rubber member, a piston rubber pad is fixedly attached to the bottom surface of the spiral piston, and the peripheral side of the piston rubber pad is abutted against the inner wall of the spiral plate heat exchanger.

In a preferred embodiment, the number of the piston adjusting rods is several, the upper end and the lower end of each piston adjusting rod are respectively and fixedly connected with the bottom surface of the adjusting pressure plate and the top surface of the spiral piston, and the piston adjusting rods are uniformly distributed on the inner sides of the spiral piston and the adjusting pressure plate.

In a preferred embodiment, the input end of the flow rate control valve is electrically connected with the output end of a control panel, the output end of the temperature sensor is electrically connected with the input end of the control panel, and the control panel is of a PLC controller or a single chip microcomputer structure.

The invention has the technical effects and advantages that:

1. according to the invention, the spiral piston matched with the spiral plate heat exchanger is arranged, and the volume of the inner cavity of the spiral plate heat exchanger is changed by utilizing the lifting of the spiral piston, so that the stock of liquid flow in the spiral plate heat exchanger in unit time is increased or reduced under the condition of the same liquid flow velocity, and the heat exchange quantity among the liquid flows is changed, so that the temperature of the heat exchange liquid flow at the outlet end is changed, and the temperature of the liquid flow outlet is accurately controlled;

2. according to the invention, through the arrangement of the flow control seat structure, the flow speed control valve in the flow control seat is utilized to perform accurate flow speed regulation under the control of the control panel, and the liquid flow entering the spiral plate heat exchanger in unit time is controlled, so that the total liquid flow participating in heat exchange is changed, and the self-adaptive regulation of the temperature of the liquid flow outlet is realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the spiral plate heat exchanger of the present invention.

Fig. 3 is a schematic view of the installation structure of the screw piston of the present invention.

Fig. 4 is a schematic view of the spiral piston structure of the present invention.

Fig. 5 is a schematic view of the internal structure of the flow control seat of the present invention.

The reference signs are: 1. a spiral plate heat exchanger; 2. a flow control seat; 3. a liquid stream heat exchange inlet; 4. a piston adjusting rod; 5. adjusting the pressure plate; 6. a first fluid outlet; 7. a temperature sensor; 8. a second liquid outlet; 9. a control panel; 10. a screw piston; 11. a first flow channel; 12. a second liquid flow passage; 21. a liquid stream inlet; 22. a flow rate control valve; 101. a spiral plate groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The spiral plate heat exchanger for accurately controlling the outlet temperature as shown in the attached fig. 1-5 comprises a spiral plate heat exchanger 1, a flow control seat 2 is fixedly installed at the bottom end of the spiral plate heat exchanger 1, a liquid flow heat exchange inlet 3 is fixedly connected to the input end of the spiral plate heat exchanger 1, a flow rate control valve 22 located inside the flow control seat 2 is fixedly connected to the other end of the liquid flow heat exchange inlet 3, a liquid flow inlet 21 is fixedly connected to the input end of the flow rate control valve 22, a first liquid flow outlet 6 and a second liquid flow outlet 8 are fixedly connected to the output end of the spiral plate heat exchanger 1, temperature sensors 7 are fixedly installed inside the first liquid flow outlet 6 and the second liquid flow outlet 8, a spiral piston 10 is slidably installed inside the spiral plate heat exchanger 1, a piston adjusting rod 4 is fixedly installed on the top surface of the spiral piston adjusting rod 4, an adjusting pressure plate 5 is fixedly installed on the top surface of the piston adjusting rod 4, a control panel 9 is fixedly arranged on the surface of the flow control seat 2.

The implementation mode is specifically as follows: by arranging the spiral piston 10 matched with the spiral plate heat exchanger 1, the volume of an inner cavity of the spiral plate heat exchanger 1 is changed by lifting the spiral piston 10, so that the stock of liquid flow in the spiral plate heat exchanger 1 in unit time is increased or reduced under the condition that the flow rates of the liquid flows are the same, the heat exchange quantity among the liquid flows is changed, the temperature of the heat exchange liquid flow at the outlet end is changed, and the temperature of the liquid flow outlet is accurately controlled; in addition, the invention adopts the structure of the flow control seat 2, and utilizes the flow rate control valve 22 in the flow control seat 2 to perform accurate flow rate regulation under the control of the control panel 9, thereby controlling the liquid flow entering the spiral plate heat exchanger 1 in unit time so as to change the total liquid flow participating in heat exchange and realize the self-adaptive regulation of the temperature of the liquid flow outlet.

The spiral plate heat exchanger 1 is internally provided with a first liquid flow channel 11 and a second liquid flow channel 12, the number of the liquid flow heat exchange inlets 3 is two, the two liquid flow heat exchange inlets 3 are respectively communicated with the interiors of the first liquid flow channel 11 and the second liquid flow channel 12, and the first liquid flow outlet 6 and the second liquid flow outlet 8 are respectively communicated with the ends of the first liquid flow channel 11 and the second liquid flow channel 12 and are used for the circulation of liquid flows with two different temperatures.

Wherein, spiral plate heat exchanger 1 is the integrated into one piece structure, and spiral plate heat exchanger 1 is metal copper material component, and spiral plate heat exchanger 1 twists reverse by a piece formula copper and forms, and the bottom surface of spiral plate heat exchanger 1 is the enclosed construction, and the top surface of spiral plate heat exchanger 1 is open structure, utilizes the high heat conduction effect of metal copper to realize quick heat conduction.

Wherein, the inside of spiral piston 10 is equipped with spiral plate groove 101, the shape size and the spiral plate heat exchanger 1 looks adaptation of spiral plate groove 101, and spiral piston 10 and the inner wall interference fit of spiral plate heat exchanger 1 utilize the lift of spiral piston 10 to realize the regulation of 1 inside volumes of spiral plate heat exchanger.

Wherein, the spiral piston 10 is a high temperature resistant rubber component, a piston rubber pad is fixedly attached to the bottom surface of the spiral piston 10, the circumferential side of the piston rubber pad is mutually abutted with the inner wall of the spiral plate heat exchanger 1, the sealing performance of the spiral piston 10 and the inner wall of the spiral plate heat exchanger 1 is improved, and the liquid flow is prevented from escaping.

The number of the piston adjusting rods 4 is a plurality, the upper end and the lower end of each piston adjusting rod 4 are fixedly connected with the bottom surface of the adjusting pressing plate 5 and the top surface of the spiral piston 10 respectively, and the piston adjusting rods 4 are uniformly distributed on the inner sides of the spiral piston 10 and the adjusting pressing plate 5 and used for carrying out multi-point support on the spiral piston 10, so that the movable adjustment of the spiral piston 10 is facilitated.

Wherein, the input of flow rate control valve 22 and the output of control panel 9 electric connection, and the output of temperature sensor 7 and the input electric connection of control panel 9, control panel 9 are PLC controller or single chip microcomputer structure, realize automated control.

Wherein the model of the control panel 9 is RP1N-10MT type; the model of the temperature sensor 7 is QN-WZPT-291; the flow rate control valve 22 is model number DN 08-65.

The working principle of the invention is as follows:

the first step is as follows: the liquid flow inlet 21 is connected with two liquid flow pipelines with different temperatures, liquid flow is guided into the spiral plate heat exchanger 1, and heat is conducted to the surface of the spiral plate heat exchanger 1 and conducted mutually through the flow of the liquid flow in the spiral plate heat exchanger 1, so that heat exchange is realized;

the second step is that: observing the measured temperature of a temperature sensor 7 displayed on the surface of a control panel 9, indicating that the heat exchange amount is large if the initial temperature difference between the measured temperature and the liquid flow is large, and if the heat exchange amount of the two liquid flows needs to be reduced, only pressing an adjusting pressure plate 5 downwards, driving a spiral piston 10 to move downwards in a spiral plate heat exchanger 1 through a piston adjusting rod 4, changing the volume of an inner cavity of the spiral plate heat exchanger 1, so that the stock of the liquid flow in the spiral plate heat exchanger 1 in unit time is reduced under the condition that the flow rates of the liquid flows are the same, the heat exchange amount between the liquid flows is reduced, and the temperature of the heat exchange liquid flow at the outlet end is changed;

the third step: when the required outlet temperature cannot be accurately reached after the heat exchange amount is changed, the flow rates of liquid flows with two temperatures can be respectively and automatically controlled by controlling the flow rate limiting effect of the two flow rate control valves 22, so that the total amount of the liquid flows participating in heat exchange is changed by changing the flow rate of the liquid entering the spiral plate heat exchanger 1 in unit time, and the automatic adjustment of the temperature of the liquid flow outlet is realized.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.