Non-corrosion temperature-adjustable heating medium air preheater

Abstract

The utility model discloses a non-corrosive temperature-adjustable heating medium air preheater which comprises an outer shell, an air inlet and an air outlet are formed in the two ends of the outer shell respectively, a plurality of heat exchange modules are arranged in the outer shell, and each heat exchange module comprises a heat exchange pipe arranged in the outer shell. Mounting heads are arranged at the two ends of the heat exchange pipe and extend to the outside of the outer shell. The heater is arranged at the top of the outer shell, the heating pipe is arranged at the output end of the heater, the heating pipe extends into the storage box, the heating medium is arranged in the storage box and can be water or heat conduction oil, the heated heating medium is input into the heat exchange pipe through the water pump module, and therefore the heat exchange pipe is heated. Air enters from the air inlet and is subjected to a heat exchange reaction with the heat exchange pipe, so that the air is preheated, and meanwhile, the heat exchange pipe is always kept at a certain temperature, so that condensation is avoided, and dew point corrosion is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to air preheater technical field more particularly is a kind of no corrosion temperature-regulated heat medium air preheater. BACKGROUND

[0002] Tubular air preheater is mainly used to heat the air into boiler or other heat conversion equipment, to improve the overall thermal efficiency of system. It uses the heat in flue gas or other heat medium, and transfers these heat to air by heat exchange. In this way, the air that originally needs additional energy consumption to heat can obtain the required heat from the preheater, thereby realizing energy saving.

[0003] The existing technology has the following problems:

[0004] 1. The traditional tubular air preheater has low tube wall temperature, which is prone to dew point corrosion, reducing the service life of the heat exchange tube.

[0005] 2. The surface of the heat exchange tube of the traditional tubular air preheater is smooth, with limited contact area and poor heat exchange effect.

[0006] Therefore, a new technical solution is needed to solve the problem. UTILITY MODEL CONTENT

[0007] In view of the shortcomings of the prior art, the utility model provides a no-corrosion temperature-regulated heat medium air preheater to solve the problems raised in the background art.

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a no-corrosion temperature-regulated heat medium air preheater, comprising: an outer shell, an air inlet and an air outlet are arranged at both ends of the outer shell, a plurality of groups of heat exchange modules are arranged inside the outer shell, and the heat exchange module comprises a heat exchange tube arranged inside the outer shell, mounting heads are arranged at both ends of the heat exchange tube and extend to the outside of the outer shell, a connecting pipe is arranged between adjacent two groups of heat exchange tubes, and a joint is arranged at the connection between the connecting pipe and the mounting head, adjacent two groups of heat exchange tubes are connected to each other through the connecting pipe, a storage tank is arranged on the side of the outer shell, a water pump module is arranged on the upper part of the storage tank, a water inlet pipe is arranged at the output end of the water pump module and connected to the mounting head of the heat exchange tube located at the uppermost end, a water return pipe is arranged on the side of the storage tank and connected to the mounting head of the heat exchange tube, a heater is arranged on the top of the outer shell, a heating pipe is arranged at the output end of the heater, the heating pipe extends to the inside of the storage tank, and a heating medium is arranged inside the storage tank.

[0009] As a preferred embodiment of the utility model, the surfaces of the air inlet and the air outlet are both provided with connecting flanges.

[0010] As an optimal implementation form of the utility model, the top of the outer shell body is provided with a mounting seat, and the inside of the mounting seat is provided with a temperature sensor.

[0011] As an optimal implementation form of the utility model, the connecting pipe is provided in a U-shaped structure.

[0012] As an optimal implementation form of the utility model, the upper part of the storage tank is provided with a controller, and the controller is connected between the water pump module and the heater.

[0013] As an optimal implementation form of the utility model, the surface of the heat exchange pipe is provided with fins, and the fins are provided in a spiral structure.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model discloses a heat exchange module, which comprises an outer shell body, a plurality of heat exchange pipe groups arranged in the outer shell body, mounting heads arranged at both ends of the heat exchange pipe and extending to the outside of the outer shell body, connecting pipes arranged between adjacent two heat exchange pipe groups and provided with joints at the connecting positions with the mounting heads, and a storage tank arranged on the side of the outer shell body and provided with a water pump module at the upper part. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a front view structure schematic view of the utility model;

[0018] Figure 3 It is a cross section structure schematic view of the utility model;

[0019] Figure 4 It is a heat exchange pipe structure schematic view of the utility model.

[0020] In the figure: 1, the outer shell; 2, air inlet; 3, connecting flange; 4, storage tank; 5, heater; 6, controller; 7, water pump module; 8, water inlet pipe; 9, backwater pipe; 10, mounting seat; 11, heat exchange module; 12, heating pipe; 13, heat exchange pipe; 14, joint; 15, connecting pipe; 16, temperature sensor; 17, mounting head; 18, fin; 19, air outlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-4 The present application provides a technical solution: a non-corrosive temperature-adjustable heat medium air preheater.

[0023] Embodiment 1

[0024] For the above-mentioned problem 1: the traditional tubular air preheater has low tube wall temperature, which is prone to dew point corrosion, reducing the service life of the heat exchange tube.

[0025] The solution is as follows: a non-corrosion temperature-adjustable heat medium air preheater, comprising: an outer shell 1, air inlets 2 and air outlets 19 are arranged at two ends of the outer shell 1 respectively, a plurality of groups of heat exchange modules 11 are arranged in the outer shell 1, the heat exchange modules 11 comprise heat exchange pipes 13 arranged in the outer shell 1, mounting heads 17 are arranged at two ends of the heat exchange pipes 13 and extend to the outside of the outer shell 1, connecting pipes 15 are arranged between adjacent two groups of the heat exchange pipes 13 and joints 14 are arranged at the connecting positions of the connecting pipes 15 and the mounting heads 17, the adjacent two groups of the heat exchange pipes 13 are communicated with each other through the connecting pipes 15, a storage tank 4 is arranged at the side of the outer shell 1 and a water pump module 7 is arranged at the upper portion of the storage tank 4, a water inlet pipe 8 is arranged at the output end of the water pump module 7 and connected with the mounting head 17 of the heat exchange pipe 13 at the uppermost end, a water return pipe 9 is arranged at the side of the storage tank 4 and connected with the mounting head 17 of the heat exchange pipe 13, a heater 5 is arranged at the top of the outer shell 1 and a heating pipe 12 is arranged at the output end of the heater 5, the heating pipe 12 extends to the inside of the storage tank 4, and a heating medium is arranged in the inside of the storage tank 4, a plurality of groups of heat exchange modules 11 are arranged in the outer shell 1, the heat exchange modules 11 comprise heat exchange pipes 13 arranged in the outer shell 1, mounting heads 17 are arranged at two ends of the heat exchange pipes 13 and extend to the outside of the outer shell 1, connecting pipes 15 are arranged between adjacent two groups of the heat exchange pipes 13 and joints 14 are arranged at the connecting positions of the connecting pipes 15 and the mounting heads 17, the adjacent two groups of the heat exchange pipes 13 are communicated with each other through the connecting pipes 15, a storage tank 4 is arranged at the side of the outer shell 1 and a water pump module 7 is arranged at the upper portion of the storage tank 4, a water inlet pipe 8 is arranged at the output end of the water pump module 7 and connected with the mounting head 17 of the heat exchange pipe 13 at the uppermost end, a water return pipe 9 is arranged at the side of the storage tank 4 and connected with the mounting head 17 of the heat exchange pipe 13, the arrangement forms a water circulation, a heater 5 is arranged at the top of the outer shell 1 and a heating pipe 12 is arranged at the output end of the heater 5, the heating pipe 12 extends to the inside of the storage tank 4, and a heating medium is arranged in the inside of the storage tank 4, which can be water or heat-conducting oil, the heated heating medium is input into the heat exchange pipe 13 through the water pump module 7, air enters the heat exchange pipe 13 through the air inlet 2 and a heat exchange reaction occurs between the air and the heat exchange pipe 13, so that the air is preheated, and the heat exchange pipe 13 always maintains a certain temperature, so that condensation is avoided and dew point corrosion is avoided.

[0026] Further improved, as shown in Figure 1 The surfaces of the air inlets 2 and the air outlets 19 are provided with connecting flanges 3, which can be conveniently connected with other equipment, enhancing the compatibility and installation convenience of the equipment.

[0027] Further improved, as shown in Figure 2 ,3 As shown in the figure: the top of the outer shell 1 is provided with a mounting seat 10, and the inside of the mounting seat 10 is provided with a temperature sensor 16, which extends to the inside of the outer shell 1. The installation of the temperature sensor 16 can monitor the temperature inside the outer shell 1 in real time, ensure that the heat exchange process is carried out within the set temperature range, and improve the temperature control accuracy and safety of the equipment.

[0028] Further improved, as Figure 2 As shown in the figure: the connecting pipe 15 is provided in a U-shaped structure, which reduces the pressure loss and flow resistance caused by pipe bending and improves the circulating efficiency of the heat medium.

[0029] Further improved, as Figure 1 As shown in the figure: the upper part of the storage tank 4 is provided with a controller 6, and the controller 6 is connected between the water pump module 7 and the heater 5. The controller 6 can realize the automatic control of the equipment, and automatically adjust the working state of the water pump module 7 and the heater 5 according to the temperature information fed back by the temperature sensor 16.

[0030] Embodiment 2

[0031] In view of the above problems to be solved: the surface of the heat exchange pipe 13 of the general tubular air preheater is smooth, the contact area is limited, and the heat exchange effect is poor.

[0032] The solution is as follows: as Figure 3 As shown in the figure: the surface of the heat exchange pipe 13 is provided with fins 18, and the fins 18 are provided in a spiral structure. The spiral structure of the fins 18 can increase the contact area between the heat exchange pipe 13 and the air, and improve the heat exchange efficiency.

[0033] Working principle: the utility model discloses a plurality of groups of heat exchange module 11 are arranged in the inside of shell body 1 and heat exchange module 11 includes the heat exchange pipe 13 arranged in the inside of shell body 1, and the heat exchange pipe 13 both ends are provided with mounting head 17 and mounting head 17 extends to the outside of shell body 1, and the connecting pipe 15 is arranged between the adjacent two groups of heat exchange pipe 13, and the connecting pipe 15 is provided with joint 14 with the connecting place of mounting head 17, and the adjacent two groups of heat exchange pipe 13 are communicated with each other through connecting pipe 15, and the storage tank 4 is arranged on the side of shell body 1, and the upper portion of storage tank 4 is provided with water pump module 7, and the output of water pump module 7 is provided with water inlet pipe 8, and water inlet pipe 8 is connected with the mounting head 17 of the uppermost heat exchange pipe 13, and the backwater pipe 9 is arranged on the side of storage tank 4 and is connected with the mounting head 17 of heat exchange pipe 13, and the water circulation is formed by the setting, and the heater 5 is arranged on the top of shell body 1, and the output of heater 5 is provided with heating pipe 12, and heating pipe 12 extends to the inside of storage tank 4, and heating medium is arranged in the inside of storage tank 4, which can be water or heat conducting oil, and the heated heating medium is input into heat exchange pipe 13 through water pump module 7, and air enters between heat exchange pipe 13 and occurs heat exchange reaction, thereby realizing the preheating of air, and the heat exchange pipe 13 always maintains a certain temperature, thereby avoiding condensation and dew point corrosion.

[0034] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] Finally, it should be noted that: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change.

[0036] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A non-corrosive, temperature-adjustable heat medium air preheater, characterized in that: include: An outer shell (1) is provided with an air inlet (2) and an air outlet (19) at its two ends. Several sets of heat exchange modules (11) are arranged inside the outer shell (1), and each heat exchange module (11) includes a heat exchange tube (13) disposed inside the outer shell (1). Each heat exchange tube (13) has a mounting head (17) at both ends, extending to the outside of the outer shell (1). A connecting pipe (15) is provided between two adjacent sets of heat exchange tubes (13), and a connector (14) is provided at the connection between the connecting pipe (15) and the mounting head (17). Two adjacent sets of heat exchange tubes (13) are interconnected through the connecting pipe (15). A storage box (4) is provided on the side of the outer shell (1), and a water pump module (7) is provided on the upper part of the storage box (4). The output end of the water pump module (7) is provided with a water inlet pipe (8), and the water inlet pipe (8) is connected to the mounting head (17) of the heat exchange tube (13) located at the uppermost end. A return water pipe (9) is provided on the side of the storage box (4), and the return water pipe (9) is connected to the mounting head (17) of the heat exchange tube (13). A heater (5) is provided on the top of the outer shell (1), and a heating tube (12) is provided at the output end of the heater (5). The heating tube (12) extends into the interior of the storage box (4), and a heating medium is provided inside the storage box (4).

2. The non-corrosive, temperature-adjustable heat medium air preheater according to claim 1, characterized in that: Both the air inlet (2) and the air outlet (19) are provided with connecting flanges (3).

3. The non-corrosive, temperature-adjustable heat medium air preheater according to claim 1, characterized in that: The top of the outer casing (1) is provided with a mounting base (10) and a temperature sensor (16) is provided inside the mounting base (10), the temperature sensor (16) extending into the interior of the outer casing (1).

4. The non-corrosive, temperature-adjustable heat medium air preheater according to claim 1, characterized in that: The connecting pipe (15) is arranged in a U-shape.

5. A non-corrosive, temperature-adjustable heat medium air preheater according to claim 1, characterized in that: The upper part of the storage box (4) is equipped with a controller (6), and the controller (6) is connected to the water pump module (7) and the heater (5).

6. The non-corrosive, temperature-adjustable heat medium air preheater according to claim 1, characterized in that: The surface of the heat exchange tube (13) is provided with fins (18) and the fins (18) are arranged in a spiral structure.

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