Anti-frosting condensation type heat exchanger

Abstract

The utility model relates to the technical field of heat exchange equipment, and discloses an anti-frosting condensation type heat exchanger. The anti-frosting condensation type heat exchanger comprises a base, an air inlet pipe, an air outlet pipe, a protective shell, a water outlet pipe, a water inlet pipe and a partition plate, the protective shell is arranged on the base, the top of the protective shell is connected and communicated with the air inlet pipe, and the bottom of the protective shell is connected and communicated with the air outlet pipe. The top of the protection shell is connected and communicated with a water outlet pipe, the bottom of the protection shell is connected and communicated with a water inlet pipe, a partition plate is fixedly connected to the interior of the protection shell, the first fixing frame is fixedly connected to the base, and the protection shell is arranged on the first fixing frame. By starting the heating module, the heating module generates heat, and the heat is transmitted to the protective shell through the heat conduction pipe, so that the situation that the heat is absorbed by frosting on the surface of the protective shell at low temperature, and the heat exchange efficiency is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment and discloses an anti-frost condensing heat exchanger. Background Art

[0002] Condensing heat exchanger is a highly efficient heat exchange equipment, mainly used to recycle the latent heat released when water vapor in flue gas condenses. It realizes effective heat transfer by making high-temperature flue gas and water exchange heat indirectly or directly. Condensing heat exchanger can be divided into single heat exchanger and double heat exchange system. Condensing heat exchanger can also be applied to the field of water heater technology, by improving the structure of heat exchange tube, such as increasing the effective heat exchange area and improving heat exchange conditions, to improve heat exchange efficiency.

[0003] The patent authorization publication number is CN210512704U, a condensing heat exchanger, including a shell, a heat dissipation component, a water tank and a bracket, the shell is arranged on the bracket, the number of the brackets is set to two, and they are respectively arranged at the two ends of the shell, one end of the shell is provided with an inlet connected to the inside of the shell, and the other end is provided with an outlet connected to the inside of the shell. The above patent prevents the shell from shaking on the bracket by setting shrapnel and springs, but when the heat exchanger is used in low temperature weather, the surface of the shell will be frosted due to the low temperature of the outside and cold water. During heat exchange, the frost will absorb the heat carried by the high-temperature flue gas, resulting in heat waste and reducing the efficiency of heat exchange.

[0004] Therefore, a condensing heat exchanger that is frost-resistant is needed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents that when using the heat exchanger in low temperature weather, the temperature of the outside and the cold water is low, which will cause frost on the surface of the shell. During heat exchange, the frost will absorb the heat carried by the high-temperature flue gas, thereby causing heat waste and reducing the efficiency of heat exchange, the utility model provides an anti-frost condensing heat exchanger.

[0006] The utility model provides the following technical solutions: a frosting-proof condensing heat exchanger, comprising a base, an air inlet pipe, an air outlet pipe, a protective shell, a water outlet pipe, a water inlet pipe, a partition, a positioning plate and a guide pipe, a protective shell is arranged on the base, the top of the protective shell is connected and communicated with the air inlet pipe, the bottom of the protective shell is connected and communicated with the air outlet pipe, the top of the protective shell is connected and communicated with the water outlet pipe, the bottom of the protective shell is connected and communicated with the water inlet pipe, a partition is fixedly connected inside the protective shell, two positioning plates are fixedly connected inside the protective shell, a plurality of guide pipes are jointly arranged on the two positioning plates, and also comprises a first fixing frame, a protective shell, a heating module, a mounting frame and a heat-conducting pipe, a first fixing frame is fixedly connected to the base, a protective shell is arranged on the first fixing frame, the protective shell wraps the protective shell, a mounting frame is mounted on the protective shell, a heating module is mounted on the mounting frame, a heat-conducting pipe is arranged inside the protective shell, and one end of the heat-conducting pipe is connected to the heating module.

[0007] Optionally, the protective shell is made of heat-insulating material.

[0008] Optionally, it also includes a limiting flow plate, a second fixing frame, a support plate and a connecting plate. Two second fixing frames are installed on the top of the protective shell, and two support plates are installed on the bottom of the protective shell. The two support plates and the two second fixing frames are jointly installed with multiple limiting flow plates, and connecting plates are connected between the multiple limiting flow plates.

[0009] Optionally, it also includes a mounting seat, a rotating frame and a screw rod, the left and right sides of the first air inlet pipe are fixedly connected with the mounting seat, the rotating frame is rotatably arranged on the mounting seat, and the screw rod is rotatably arranged on the rotating frame.

[0010] Optionally, a filter screen is also included, and the air intake pipe is embedded with the filter screen.

[0011] Optionally, a protective cover is also included, and the water outlet pipe is covered with the protective cover.

[0012] Optionally, a placement frame is also included, and the placement frame is installed on the base.

[0013] Compared with the prior art, the utility model provides an anti-frost condensing heat exchanger with the following beneficial effects: 1. By turning on the heating module, the heating module generates heat, which is transferred to the protective shell through the heat pipe, thereby avoiding frosting on the surface of the protective shell at low temperatures to absorb heat and reduce the efficiency of heat exchange.

[0014] 2. The flow rate of cold water is slowed down by the flow limiting plate, thereby increasing the contact time between the cold water and the guide tube, so that the cold water can fully absorb the heat in the high-temperature flue gas, thereby improving the efficiency of heat exchange.

[0015] 3. Rotate the rotating frame inward to make it contact with the exhaust pipe, and then rotate the screw to fix the exhaust pipe to the intake pipe, so as to avoid smoke leakage caused by loose exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the base, protective shell and partition of the utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the base, the first fixing frame and the heating module of the utility model.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the partition plate, the positioning plate and the current limiting plate of the utility model.

[0020] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the base, protective shell and air intake pipe of the utility model.

[0021] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the mounting seat, rotating frame and screw rod of the utility model.

[0022] In the above drawings: 1-base, 101-inlet pipe, 102-outlet pipe, 2-protective shell, 201-outlet pipe, 202-inlet pipe, 3-partition, 4-positioning plate, 5-flow guide pipe, 6-first fixed frame, 7-protective shell, 8-heating module, 9-mounting frame, 10-heat pipe, 11-current limiting plate, 12-second fixed frame, 13-support plate, 14-connecting plate, 15-mounting seat, 16-rotating frame, 17-screw, 18-filter, 19-protective cover, 20-placement frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: A condensing heat exchanger with anti-frost function, see Figure 1-Figure 6, including a base 1, an air inlet pipe 101, an air outlet pipe 102, a protective shell 2, a water outlet pipe 201, a water inlet pipe 202, a partition 3, a positioning plate 4 and a guide pipe 5. The base 1 is provided with a protective shell 2, the top of the protective shell 2 is connected and connected with the air inlet pipe 101, the bottom of the protective shell 2 is connected and connected with the air outlet pipe 102, the top of the protective shell 2 is connected and connected with the water outlet pipe 201, the bottom of the protective shell 2 is connected and connected with the water inlet pipe 202, the protective shell 2 is fixedly connected with a partition 3, the protective shell 2 is fixedly connected with two positioning plates 4, and the two positioning plates are jointly provided with a plurality of guide pipes 5, the base 1 is fixedly connected with a first fixing frame 6, the first fixing frame 6 is provided with a protective shell 7, and the protective The protective shell 7 wraps the protective shell 2. The protective shell 7 is made of heat-insulating material to prevent the staff from touching the protective shell 7 and causing burns. A mounting frame 9 is provided on the protective shell 7 by bolt connection. A heating module 8 is provided on the mounting frame 9 by bolt connection. A heat pipe 10 is provided inside the protective shell 7. One end of the heat pipe 10 is connected to the heating module 8. A filter screen 18 is embedded on the air inlet pipe 101. The filter screen 18 filters the flue gas to prevent the impurities in the flue gas from clogging the guide pipe 5. A protective cover 19 is covered on the water outlet pipe 201. When the heat exchanger is not needed, the protective cover 19 is covered on the water outlet pipe 201. A placement frame 20 is provided on the base 1 by bolt connection.

[0025] When the heat exchanger is needed, the exhaust pipe is connected to the air inlet pipe 101, so that the high-temperature flue gas enters the guide pipe 5 through the air inlet pipe 101, and then the external water pipe is connected to the water inlet pipe 202, and cold water is injected into the protective shell 2, so that the cold water level is in the space between the two positioning plates 4, and the cold water absorbs the heat in the high-temperature flue gas, thereby realizing heat exchange and avoiding direct flue gas discharge to cause heat waste. After heating the cold water, open the water outlet pipe 201 to discharge the water, and the flue gas is discharged through the air outlet pipe 102. In low temperature weather, turn on the heating module 8, the heating module 8 generates heat, which is transferred to the protective shell 2 through the heat conducting pipe 10, thereby avoiding frost on the surface of the protective shell 2 at low temperatures to absorb heat and reduce the efficiency of heat exchange.

[0026] Example 2: Based on Example 1, please refer to Figure 4 Two second fixing frames 12 are provided at the top of the protective shell 2 by bolt connection, and two support plates 13 are provided at the bottom of the protective shell 2 by bolt connection. The two support plates 13 and the two second fixing frames 12 are jointly provided with a plurality of flow limiting plates 11 by bolt connection. The plurality of flow limiting plates 11 are staggered to increase the water flow path, and connecting plates 14 are connected between the plurality of flow limiting plates 11.

[0027] After the cold water is injected into the protective shell 2, the cold water flows through the flow limiting plate 11, which slows down the flow of the cold water, thereby increasing the contact time between the cold water and the guide tube 5, so that the cold water can fully absorb the heat in the high-temperature flue gas, thereby improving the efficiency of heat exchange.

[0028] See also Figure 5 and Figure 6 The left and right sides of the first air inlet pipe 101 are both fixedly connected with mounting seats 15 , a rotating frame 16 is rotatably provided on the mounting seats 15 , and a screw rod 17 is rotatably provided on the rotating frame 16 .

[0029] Before using the heat exchanger, rotate the rotating frame 16 outward so that the rotating frame 16 is no longer located above the air inlet pipe 101, and then connect the exhaust pipe to the air inlet pipe 101, and then rotate the rotating frame 16 inward so that the rotating frame 16 contacts the exhaust pipe, and then rotate the screw 17 to fix the exhaust pipe on the air inlet pipe 101, so as to avoid the exhaust pipe from loosening and causing smoke leakage.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frost-proof condensing heat exchanger, comprising a base (1), an air inlet pipe (101), an air outlet pipe (102), a protective shell (2), a water outlet pipe (201), a water inlet pipe (202), a partition (3), a positioning plate (4) and a flow guide pipe (5), wherein the base (1) is provided with a protective shell (2), the top of the protective shell (2) is connected to and communicated with the air inlet pipe (101), the bottom of the protective shell (2) is connected to and communicated with the air outlet pipe (102), the top of the protective shell (2) is connected to and communicated with the water outlet pipe (201), the bottom of the protective shell (2) is connected to and communicated with the water inlet pipe (202), the interior of the protective shell (2) is fixedly connected with a partition (3), the interior of the protective shell (2) is fixedly connected with two positioning plates (4), the two positioning plates are jointly provided with a plurality of flow guide pipes (5), and the characteristics are as follows: The invention also comprises a first fixing frame (6), a protective shell (7), a heating module (8), a mounting frame (9) and a heat conducting pipe (10); the first fixing frame (6) is fixedly connected to the base (1); the first fixing frame (6) is provided with a protective shell (7); the protective shell (7) wraps the protective shell (2); the mounting frame (9) is installed on the protective shell (7); the heating module (8) is installed on the mounting frame (9); the heat conducting pipe (10) is provided inside the protective shell (7); one end of the heat conducting pipe (10) is connected to the heating module (8).

2. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: The protective shell (7) is made of heat-insulating material.

3. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: It also comprises a flow limiting plate (11), a second fixing frame (12), a support plate (13) and a connecting plate (14); two second fixing frames (12) are installed at the top of the protective shell (2); two supporting plates (13) are installed at the bottom of the protective shell (2); the two supporting plates (13) and the two second fixing frames (12) are jointly installed with a plurality of flow limiting plates (11); and a connecting plate (14) is connected between the plurality of flow limiting plates (11).

4. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: It also includes a mounting seat (15), a rotating frame (16) and a screw rod (17); the first air inlet pipe (101) is fixedly connected to the mounting seat (15) on both left and right sides; the mounting seat (15) is rotatably provided with the rotating frame (16); and the screw rod (17) is rotatably provided on the rotating frame (16).

5. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: It also includes a filter screen (18), and the filter screen (18) is embedded in the air inlet pipe (101).

6. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: It also includes a protective cover (19), and the water outlet pipe (201) is covered with the protective cover (19).

7. The anti-frosting condensing heat exchanger according to claim 1, characterized in that: It also includes a placement frame (20), and the placement frame (20) is installed on the base (1).

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