CN211695415U

CN211695415U - Double air inlet heat exchanger for condensing gas water heater

Info

Publication number: CN211695415U
Application number: CN201922202284.3U
Authority: CN
Inventors: 范立群; 聂志贵; 范运山; 范森; 范伟虎; 贾双立; 范松
Original assignee: Hebei Bo Zhi Heat Energy Equipment Co ltd
Current assignee: Hebei Bo Zhi Heat Energy Equipment Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-16
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a gas heater technical field especially relates to two air inlet heat transfer device of condensing gas heater. The device comprises a high-temperature cavity and a medium-temperature cavity which are separately arranged, and an inner preheating pipeline and an outer preheating pipeline are matched, so that low-temperature water firstly flows into the inner preheating pipeline in the medium-temperature cavity, after the temperature is raised, the outer preheating pipeline in the high-temperature cavity is further preheated, when water in the outer preheating pipeline is preheated in the high-temperature cavity, condensation phenomenon caused by too low temperature drop can not occur, after the smoke in the high-temperature cavity flows into the low-temperature cavity, condensation phenomenon caused by the low-temperature water in the inner preheating pipeline in the low-temperature cavity is reduced, at the moment, waste liquid can flow into a waste liquid storage tank from a gas inlet liquid outlet, the service life of the high-temperature cavity can not be influenced by corrosion of the waste liquid, the effective utilization of heat energy in the smoke is also ensured, and the problem that the volume of the condensate of the traditional condensing water heater has influence on the.

Description

Double air inlet heat exchanger for condensing gas water heater

Technical Field

The utility model relates to a gas heater technical field especially relates to two air inlet heat transfer device of condensing gas heater.

Background

When the gas water heater is used, water entering the equipment is preheated through the high-temperature flue gas, so that the function of fully and effectively utilizing heat energy is achieved, however, the temperature of the high-temperature flue gas is reduced to the medium-temperature flue gas in the process of preheating the water, a corrosive waste liquid is condensed when the water is continuously preheated in the medium-temperature flue gas, and a condensate liquid is remained in the equipment for a long time, so that the service life of the equipment is seriously influenced, and the heat energy conversion efficiency of the equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to solve the technical deficiencies, a double-air-inlet heat exchanger of a condensing gas water heater is provided, a high-temperature cavity and a medium-temperature cavity which are separately arranged are adopted, an inner preheating pipeline is matched with an outer preheating pipeline, low-temperature water firstly flows into the inner preheating pipeline in the medium-temperature cavity, after the temperature is raised, the outer preheating pipeline which flows into the high-temperature cavity is continuously preheated, thereby realizing that when the flue gas preheats the water in the outer preheating pipeline in the high-temperature cavity, the condensation phenomenon can not be generated due to the low temperature drop, after the flue gas in the high-temperature cavity flows into the low-temperature cavity, the condensation phenomenon is generated after the low-temperature water in the inner preheating pipeline in the low-temperature cavity is cooled, at the moment, the waste liquid can flow into a waste liquid storage tank from a gas inlet liquid outlet, the high-temperature cavity is guaranteed not to be influenced by the corrosion, the problem of traditional condensing water heater condensate volume have influence equipment life in the equipment is solved.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: comprises a chassis; the middle part in the case is provided with a gas heating part; a preheating heating part is arranged on the upper side of the gas heating part; a water inlet pipe is arranged at the lower side in the case; the water inlet pipe is provided with a water inlet control valve; a gas pipe is arranged on one side of the water inlet pipe; a gas control valve is arranged on the gas pipe; a water outlet pipe is arranged on the other side of the fuel gas pipe; a smoke exhaust and air inlet pipe is arranged on the upper side of the preheating part; an alarm is arranged on one side of the gas heating part; the preheating heating part comprises a high-temperature cavity and a middle-temperature cavity; the middle temperature cavity is arranged at the upper side in the high temperature cavity; an inner preheating pipeline is arranged in the middle temperature cavity; an external preheating pipeline is arranged in the high-temperature cavity; one end of the inner preheating pipeline is communicated with the water inlet pipe; the other end of the inner preheating pipeline is communicated with the outer preheating pipeline; a water delivery pipe is arranged outside the outer preheating pipelines on the two sides; a gas inlet and a liquid outlet are arranged below the middle temperature cavity; an air outlet is arranged above the middle temperature cavity; two walls outside the high-temperature cavity are provided with flue gas inlets; a waste liquid outlet is formed in the lower side of the high-temperature cavity; the waste liquid storage tank is symmetrically arranged below the high-temperature cavity and is in sliding connection with the high-temperature cavity.

Further optimizes the technical proposal, and the outer side of the inner preheating pipeline is welded with inner heat absorbing fins.

Further optimize this technical scheme, outer heat absorbing fin has been welded to outer preheating pipe outside.

Further optimize this technical scheme, go into gas-liquid outlet and adopt the setting towards high temperature chamber.

Further optimize this technical scheme, raceway and gas heating portion intercommunication.

Further optimize this technical scheme, the waste liquid export corresponds with income gas liquid outlet position, no outer heat absorption fin is set up between waste liquid export and the income gas liquid outlet.

Compared with the prior art, the utility model has the advantages of it is following: 1. the high temperature chamber and the middle temperature chamber that separately set up, in addition preheat the pipeline and cooperate with outer preheating pipe, this structure is favorable has guaranteed that low temperature water flows into the interior preheating pipe in the middle temperature intracavity at first, treat that the temperature promotes the back, flow into the outer preheating pipe in the high temperature intracavity again and continue preheating, thereby when having realized that the flue gas preheats the water in the pipeline outside the high temperature chamber, can not produce condensation phenomenon because the temperature drops excessively, and treat that the flue gas in high temperature chamber flows into behind the low temperature chamber, produce condensation phenomenon after receiving the low temperature water cooling of the interior preheating pipe in the low temperature intracavity, at this moment the waste liquid can be flowed into in the waste liquid storage tank by the liquid outlet of admitting gas, guaranteed that the high temperature chamber can not receive the corruption influence life-span of waste liquid, also guaranteed the effective utilization of.

Drawings

Fig. 1 is an overall structure schematic diagram of a double-air-inlet heat exchange device of a condensing gas water heater.

Fig. 2 is a schematic diagram of the overall structure of a preheating part of a double-air-inlet heat exchange device of a condensing gas water heater.

Fig. 3 is a schematic sectional view of a part of a preheating part of a double-inlet heat exchange device of a condensing gas water heater.

In the figure: 1. a chassis; 2. a gas heating section; 3. preheating a heating part; 4. a water inlet pipe; 5. a water inlet control valve; 6. a gas pipe; 7. a gas control valve; 8. a water outlet pipe; 9. a smoke exhaust and air inlet pipe; 10. an alarm; 11. a high temperature chamber; 12. a medium temperature cavity; 13. an internal preheating pipeline; 14. an external preheating pipeline; 15. a water delivery pipe; 16. a gas inlet and a liquid outlet; 17. a waste liquid outlet; 18. a waste tank; 19. an inner heat absorbing fin; 20. an outer heat absorbing fin; 21. an air outlet; 22. a flue gas inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: as shown in fig. 1-3, includes a chassis 1; the middle part in the case 1 is provided with a gas heating part 2; a preheating heating part 3 is arranged on the upper side of the gas heating part 2; a water inlet pipe 4 is arranged at the lower side in the case 1; a water inlet control valve 5 is arranged on the water inlet pipe 4; a gas pipe 6 is arranged on one side of the water inlet pipe 4; a gas control valve 7 is arranged on the gas pipe 6; a water outlet pipe 8 is arranged on the other side of the fuel gas pipe 6; a smoke exhaust and air inlet pipe 9 is arranged on the upper side of the preheating part 3; an alarm 10 is arranged on one side of the gas heating part 2; the preheating part 3 comprises a high-temperature cavity 11 and a middle-temperature cavity 12; the middle temperature cavity 12 is arranged at the upper side in the high temperature cavity 11; an inner preheating pipeline 13 is arranged in the middle temperature cavity 12; an external preheating pipeline 14 is arranged in the high-temperature cavity 11; one end of the inner preheating pipeline 13 is communicated with the water inlet pipe 4; the other end of the inner preheating pipeline 13 is communicated with an outer preheating pipeline 14; a water conveying pipe 15 is arranged outside the outer preheating pipelines 14 on the two sides; a gas and liquid inlet and outlet 16 is arranged below the middle temperature cavity 12; an air outlet 21 is arranged at the upper part in the middle-temperature cavity 12; two walls of the outer side of the high-temperature cavity 11 are provided with flue gas inlets 22; a waste liquid outlet 17 is formed in the lower side of the high-temperature cavity 11; waste liquid storage tanks 18 are symmetrically arranged below the high-temperature cavity 11, and the waste liquid storage tanks 18 are connected with the high-temperature cavity 11 in a sliding manner; the outer side of the inner preheating pipeline 13 is welded with an inner heat absorption fin 19; the outer side of the outer preheating pipeline 14 is welded with an outer heat absorbing fin 20; the gas and liquid inlet and outlet 16 is arranged towards the high-temperature cavity 11; the water delivery pipe 15 is communicated with the gas heating part 2; the waste liquid outlet 17 corresponds to the gas-liquid inlet and outlet 16, and no outer heat absorbing fin 20 is arranged between the waste liquid outlet 17 and the gas-liquid inlet and outlet 16.

When the device is used, as shown in fig. 1-3, after the device is started, water flows into the inner preheating pipe 13 through the water inlet control valve 5 arranged on the water inlet pipe 4, then flows into the water delivery pipe 15 through the outer preheating pipe 14, flows into the gas heating part 2, high-temperature waste gas generated by combustion flows into the high-temperature cavity 11 through the flue gas inlets 22 at two sides, flows into the medium-temperature cavity 12 through the gas inlet liquid outlet 16, and flows into the smoke exhaust inlet pipe 9 through the gas outlet 21 to flow out of the device, in the process, because water with lower temperature firstly enters the inner preheating pipe 13 in the medium-temperature cavity 12, the temperature in the medium-temperature cavity 12 is lower, and when water heated by the medium-temperature cavity 12 flows into the outer preheating pipe 14 in the high-temperature cavity 11, the temperature in the high-temperature cavity 11 can be kept at higher temperature, and because the temperature is higher, the flue gas can not be condensed in the high-temperature cavity 11, guaranteed high temperature chamber 11 when effective heat transfer heat conduction, thereby can not influence life and result of use because the condensation produces the waste liquid, after the flue gas gets into well warm chamber 12 along going into gas liquid outlet 16, because heat energy has already passed through the heat conduction in high temperature chamber 11 in the flue gas this moment, low temperature water at first gets into the heat conduction pipeline that preheats in well warm chamber 12 in, make this moment the flue gas temperature by being reduced to the lower temperature, the flue gas takes place the condensation in well warm chamber 12, the waste liquid that the condensation produced flows out along going into gas liquid outlet 16, waste liquid outlet 17 flows through, wait to wait in flowing into waste liquid storage tank 18 and follow-up centralized processing.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting the machinery setting, so the utility model discloses no longer explain control mode and circuit connection in detail.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. Two air inlet heat transfer device of condensing gas heater, its characterized in that: comprises a case (1); the middle part in the case (1) is provided with a gas heating part (2); a preheating heating part (3) is arranged on the upper side of the gas heating part (2); a water inlet pipe (4) is arranged at the lower side in the case (1); a water inlet control valve (5) is arranged on the water inlet pipe (4); a gas pipe (6) is arranged on one side of the water inlet pipe (4); a gas control valve (7) is arranged on the gas pipe (6); a water outlet pipe (8) is arranged on the other side of the gas pipe (6); a smoke exhaust and air inlet pipe (9) is arranged on the upper side of the preheating part (3); an alarm (10) is arranged on one side of the gas heating part (2); the preheating heating part (3) comprises a high-temperature cavity (11) and a medium-temperature cavity (12); the middle temperature cavity (12) is arranged at the upper side in the high temperature cavity (11); an inner preheating pipeline (13) is arranged in the middle temperature cavity (12); an external preheating pipeline (14) is arranged in the high-temperature cavity (11); one end of the inner preheating pipeline (13) is communicated with the water inlet pipe (4); the other end of the inner preheating pipeline (13) is communicated with the outer preheating pipeline (14); a water conveying pipe (15) is arranged outside the outer preheating pipelines (14) on the two sides; a gas and liquid inlet and outlet (16) is arranged below the middle temperature cavity (12); an air outlet (21) is arranged at the upper part in the middle-temperature cavity (12); two walls of the outer side of the high-temperature cavity (11) are provided with flue gas inlets (22); a waste liquid outlet (17) is arranged at the lower side of the high-temperature cavity (11); waste liquid storage tanks (18) are symmetrically arranged below the high-temperature cavity (11), and the waste liquid storage tanks (18) are connected with the high-temperature cavity (11) in a sliding mode.

2. The double inlet air heat exchange device of the condensing gas water heater of claim 1, characterized in that: and an inner heat absorption fin (19) is welded on the outer side of the inner preheating pipeline (13).

3. The double inlet air heat exchange device of the condensing gas water heater of claim 1, characterized in that: and outer heat absorbing fins (20) are welded on the outer side of the outer preheating pipeline (14).

4. The double inlet air heat exchange device of the condensing gas water heater of claim 1, characterized in that: the gas and liquid inlet and outlet (16) are arranged towards the high-temperature cavity (11).

5. The double inlet air heat exchange device of the condensing gas water heater of claim 1, characterized in that: the water delivery pipe (15) is communicated with the gas heating part (2).

6. The double inlet air heat exchange device of the condensing gas water heater of claim 1, characterized in that: the waste liquid outlet (17) corresponds to the gas-liquid inlet and outlet (16), and an outer heat absorbing fin (20) is not arranged between the waste liquid outlet (17) and the gas-liquid inlet and outlet (16).