CN209893635U

CN209893635U - Closed internal circulation air heater

Info

Publication number: CN209893635U
Application number: CN201920516116.9U
Authority: CN
Inventors: 何方熙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-01-03
Anticipated expiration: 2029-04-16

Abstract

The utility model relates to a room heater technical field discloses a closed inner loop air heater, including: a housing having an air inlet and an air outlet; the internal circulation component is arranged in the shell and comprises a heater, a heat exchanger and a circulating pump which are sequentially communicated; the air draft assembly is arranged in the shell, is communicated with the air inlet and is also communicated with the air outlet; the heat exchanger is arranged between the air outlet and the air draft assembly. The utility model has the advantages that the heater cancels the arrangement of the compressor, the heat transfer medium is water, and the Freon is not needed to be arranged, thereby saving energy and protecting environment; and the heater has high temperature rise speed and good temperature rise effect.

Description

Closed internal circulation air heater

Technical Field

The utility model relates to a room heater technical field especially relates to a closed inner loop air heater.

Background

The warmer is an indispensable device for every family, and is suitable for areas with small space, such as toilets, kitchens, small offices and the like; the installation occupies a large space, the cost for installing the air conditioner is relatively high, the air conditioner needs to supplement Freon at regular time, and the environmental pollution caused by the Freon is also serious; for example, the conventional PCT heater in the market is usually arranged in an integrated ceiling in a concealed mode, is attractive and does not occupy space, but is low in overall heating speed, only can locally heat, and is poor in heating effect.

The invention discloses a multifunctional bathroom heater with an annular warm air opening, which belongs to heating equipment, wherein the existing bathroom heater is small in air outlet, large in air speed and not soft in air outlet. Switching between indoor air circulation and outdoor air circulation is achieved by rotating the volute. The heater has slow integral heating speed and relatively complex structure; and can be generally used only for heating rooms below 5 square meters.

In order to solve the above problems of the existing warmer, a warmer with simple structure, fast heating speed, energy saving and environmental protection needs to be designed.

Disclosure of Invention

An object of the utility model is to provide a simple structure, the programming rate is fast, and energy-concerving and environment-protective closed inner loop air heater to the above-mentioned not enough of prior art.

The utility model provides a technical scheme that its technical problem adopted is, provides a closed inner loop air heater, a serial communication port, including:

a housing having an air inlet and an air outlet;

the internal circulation component is arranged in the shell and comprises a heater, a heat exchanger and a circulating pump which are sequentially communicated;

the air draft assembly is arranged in the shell, is communicated with the air inlet and is also communicated with the air outlet; the heat exchanger is located between the air outlet and the air extraction assembly.

In the above-mentioned closed internal circulation air heater, the heater has a water inlet pipe and a water outlet pipe, the water outlet pipe is communicated with the heat exchanger, the water inlet pipe is communicated with the circulation pump.

In the above-mentioned closed internal circulation air heater, still include expansion tank, connect on the outlet pipe, and expansion tank all with heater and circulating pump intercommunication.

In the above-mentioned enclosed internal circulation air heater, the casing is provided with a first partition plate and a second partition plate, and the first partition plate and the second partition plate are arranged in parallel and at an interval; the shell is sequentially divided into a water supply area, an air exhaust area and a heat exchange area by the first partition plate and the second partition plate;

the heater, the circulating pump and the expansion water tank are positioned in a water supply area; the air draft assembly is positioned in an air draft area; the heat exchanger is in a heat exchange zone.

In the above-mentioned closed internal circulation air heater, the number of the air inlets and the number of the air outlets are two, one air inlet is arranged at the left side of the casing, and the other air inlet is arranged at the right side of the casing; the two air outlets are arranged on the front side of the shell.

In the above-mentioned closed internal circulation air heater, the air outlets are connected with air exhaust hoods, each of which has a circular air outlet; and the section of the exhaust hood is gradually reduced from inside to outside and is contracted to the exhaust outlet.

In the above-mentioned enclosed internal circulation air heater, the air draft assembly includes a motor, and a left fan and a right fan driven by the motor;

the left fan and the right fan respectively comprise a fan shell and fan blades arranged in the fan shell; one end of an output shaft of the motor extends into a fan shell of the left fan and is connected with blades of the left fan; the other end of the output shaft of the motor extends into the fan shell of the right fan and is connected with the fan blades of the right fan.

In the above-mentioned closed internal circulation air heater, further comprising a control module and a control panel; the control module is arranged in the shell, and the control panel is arranged outside the shell; and the heater, the circulating pump, the motor and the control panel are electrically connected with the control module.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model has the advantages that the heater does not need to be provided with a compressor, eliminates the arrangement of Freon, and directly uses water as a heat transfer medium, so that the environmental protection performance of the heater is good and the cost is uniform; the heater, the heat exchanger and the circulating pump which are communicated with each other form a closed internal circulating structure, and the loss of a heat transfer medium is basically avoided; an expansion water tank is arranged on a water outlet pipe of the heater, and the expansion water tank is filled with constant-pressure nitrogen, so that water can be supplemented in time, and the noise of water vapor can be effectively reduced; the water pipe entering the heat exchanger is divided into a plurality of thin pipes by a large pipe to enter, so that the contact area of air and the water pipe is increased, the integral temperature rises quickly, and the heating effect is good; can be used for heating rooms with dozens of square meters.

Drawings

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

FIG. 2 is a schematic structural view of the present invention with the cover plate removed;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 is a schematic diagram of the connections of the heater, heat exchanger and circulation pump;

FIG. 5 is a schematic view of the inlet and outlet pipes at the heat exchanger;

fig. 6 is a schematic view of the exhaust hood.

In the figure, 1, a housing; 10. a cover plate; 11. a first separator; 12. a second separator; 13. an air inlet; 14. an air outlet; 15. an exhaust hood; 110. a water supply zone; 120. an air draft area; 130. a heat exchange zone; 150. an air outlet; 2. an internal circulation assembly; 20. a heater; 21. a heat exchanger; 22. a circulation pump; 200. a water inlet pipe; 201. a water outlet pipe; 210. a water inlet pipe of the heat exchanger; 211. a drain pipe of the heat exchanger; 30. a motor; 31. a left fan; 32. a right fan; 300. an output shaft; 310. a fan housing; 311. a fan blade; 4. an expansion tank; 5. a control module; 6. a control panel.

Detailed Description

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and the detailed description, but the present invention is not limited to these examples.

As shown in fig. 1 to 3, a closed type internal circulation air heater includes: the device comprises a shell 1, an internal circulation assembly 2, an air draft assembly, an expansion water tank 4, a control module 5 and a control panel 6.

A housing 1 having an air inlet 13 and an air outlet 14; the number of the air inlets 13 and the number of the air outlets 14 are two, one air inlet 13 is arranged on the left side of the shell 1, and the other air inlet 13 is arranged on the right side of the shell 1; the two air outlets 14 are both arranged on the front side of the shell 1; thus, air is fed from an air inlet 13 on the left side of the shell 1, and air is discharged from an air outlet 14 close to the left on the front side of the shell 1; air is fed from an air inlet 13 at the right side of the shell 1, and air is discharged from an air outlet 14 close to the right side of the front side of the shell 1; forming two inlets and two outlets.

As shown in fig. 3-4, the internal circulation assembly 2, disposed in the casing 1, includes a heater 20, a heat exchanger 21 and a circulation pump 22, which are sequentially communicated; wherein, the heater 20 is provided with a water inlet pipe 200 and a water outlet pipe 201, the water outlet pipe 201 of the heater 20 is communicated with the heat exchanger 21, and the water inlet pipe 201 of the heater 20 is communicated with the circulating pump 22. The heater 20, heat exchanger 21 and circulation pump 22 constitute a closed internal circulation process: after being heated into hot water by the heater 20, the hot water is discharged to the heat exchanger 21 from the water outlet pipe 200, and the hot water is cooled by cold air in the redundant heat exchanger 21 and simultaneously releases a large amount of heat, and the released heat heats the air at the heat exchanger 21; the cooled water is pumped from the heat exchanger 21 to the circulation pump 22, and the circulation pump 22 pumps the water to the heater 20, thereby circulating the water. Specifically, the water outlet pipe 201 of the heater 20 is further connected with an expansion water tank 4, and the expansion water tank 4 is communicated with the heater 20 and the circulating pump 22. The expansion tank 4 mainly has the following functions: the constant-pressure nitrogen is used in the expansion water tank 4, so that water in the system has expansion room after being heated, and accordingly, the noise caused by steam impact is avoided, and the noise can be effectively reduced; it is also possible to replenish the small amount of water lost by evaporation and leakage in the internal circulation system and to ensure a sufficient suction pressure of the circulation pump 22.

As shown in fig. 3, the air draft assembly is arranged in the shell 1, the air draft assembly is communicated with the air inlet 13, and the air draft assembly is also communicated with the air outlet 14; the heat exchanger 21 is located between the outlet 14 and the air extraction assembly. The air draft assembly comprises a motor 30, a left fan 31 and a right fan 32 which are driven by the motor 30; the left fan 31 and the right fan 32 each include a fan case 310 and fan blades 311 disposed in the fan case 310; one end of an output shaft 300 of the motor 30 extends into a fan shell 310 of the left fan 31 and is connected with blades 311 of the left fan 31; the other end of the output shaft 300 of the motor 30 extends into the fan housing 310 of the right fan 32 and is connected with the fan blades 311 of the right fan 32. Thus, one motor 30 can drive the two fans to rotate together, and the cost and the internal space of the heater are saved.

As shown in fig. 5, the air outlets 14 are connected with the exhaust hoods 15, and the exhaust hoods 15 are provided with a circular air outlet 150; the section of the exhaust hood 150 gradually decreases from the inside to the outside, and the exhaust hood 150 contracts to the exhaust outlet 150; the circular exhaust outlet 150 is conveniently connected to an external ventilation pipe, and the section of the exhaust cover 150 is gradually changed to collect wind so as to intensively exhaust the hot wind from the exhaust outlet 150. The air draft assembly sucks air into the shell 1 from the air inlet 13, the air is heated after passing through the heat exchanger 21, and the air is exhausted through the air outlet 150 of the exhaust hood 15 on the air outlet 14; and after the indoor temperature is rapidly raised, when the indoor temperature tends to be stable, the power of the heater 20 is reduced to achieve the effect of frequency conversion and power saving.

Preferably, as shown in fig. 3, a first partition plate 11 and a second partition plate 12 are arranged in the housing 1, and the first partition plate 11 and the second partition plate 12 are arranged in parallel and at intervals; the first and

second partitions

11 and 12 partition the case 1 into a water supply region 110, an air draft region 120, and a heat exchange region 130 in this order; the heater 20, the circulation pump 22 and the expansion tank 4 are in the water supply section 110; the air extraction assembly is located in the air extraction zone 120; heat exchanger 21 is in heat exchange zone 130; the whole heater has a compact layout structure to save the internal space in the shell 1, so that the heater occupies small building space when being installed. The closed internal circulation air heater also comprises a control module 5 and a control panel 6; the control module 5 is arranged in the shell 1, and the control panel 6 is arranged outside the shell 1; the heater 20, the circulating pump 22, the motor 30 and the control panel 6 are electrically connected with the control module 5; the control module 5 is used to control the operation of the entire heater.

As shown in fig. 6, the inlet pipe 210 of the heat exchanger 20 and the outlet pipe 211 of the heat exchanger 20 are similar in structure; the inlet pipe 210 of the heat exchanger 20 is divided into a plurality of sections, i.e., one large pipe is divided into a plurality of small pipes, four of which are shown in the figure, but the number of the inlet pipes is not limited to four, and the inlet pipes can be divided into a plurality of sections, so as to increase the contact area between the air and the inlet pipe 210 of the heat exchanger 20, thereby improving the heating effect of the heat exchanger 20 and increasing the indoor temperature rise speed.

In the working process, due to the rotation of the motor 30, cold air is sucked into the shell 1 from the air inlet 13, is pumped to the heat exchanger 21 by the left fan 31 and the right fan 32, is heated by the heat exchanger 21 to be changed into hot air, and is exhausted by the exhaust hood 15; the effect of heating air is achieved; the whole heating process is simple and the energy consumption is low.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A closed internal circulation air heater is characterized by comprising:

a housing having an air inlet and an air outlet;

2. The enclosed internal circulation air heater as claimed in claim 1, wherein said heater has a water inlet pipe and a water outlet pipe, said water outlet pipe is in communication with the heat exchanger, said water inlet pipe is in communication with the circulation pump.

3. The enclosed internal circulation air heater as claimed in claim 2, further comprising an expansion tank connected to the outlet pipe, the expansion tank being in communication with the heater and the circulation pump.

4. A closed internal circulation air heater according to claim 3, wherein the housing has a first partition and a second partition disposed therein, the first partition and the second partition being disposed in parallel and spaced apart relation; the shell is sequentially divided into a water supply area, an air exhaust area and a heat exchange area by the first partition plate and the second partition plate;

5. The enclosed type internal circulation air heater as claimed in claim 1 or 4, wherein the number of the air inlets and the air outlets is two, one air inlet is arranged at the left side of the housing, and the other air inlet is arranged at the right side of the housing; the two air outlets are arranged on the front side of the shell.

6. The enclosed air heater of claim 5, wherein each of said outlets is connected to a hood having a circular outlet; and the section of the exhaust hood is gradually reduced from inside to outside and is contracted to the exhaust outlet.

7. The enclosed internal circulation air heater as claimed in claim 4, wherein the air draft assembly includes a motor and left and right fans driven by the motor;

8. The enclosed internal circulation air heater of claim 7, further comprising a control module and a control panel; the control module is arranged in the shell, and the control panel is arranged outside the shell; and the heater, the circulating pump, the motor and the control panel are electrically connected with the control module.