CN2369136Y

CN2369136Y - Vacuum water heating apparatus

Info

Publication number: CN2369136Y
Application number: CN 99206723
Authority: CN
Inventors: 王红斌; 李士祥; 蒋春良; 朱斌
Original assignee: ZHEJIANG LIANFENG CO Ltd
Current assignee: ZHEJIANG LIANFENG CO Ltd
Priority date: 1999-03-31
Filing date: 1999-03-31
Publication date: 2000-03-15
Anticipated expiration: 2009-03-31

Abstract

The utility model relates to a vacuum water heating machine group, which belongs to the technical field of heat exchanging devices. The utility model is mainly composed of a burning chamber 4 which is provided with a combustor 1, a heat exchanging chamber 8 which is arranged above the burning chamber, a heat exchanger 10 which is arranged between the burning chamber 4 and the heat exchanging chamber 8 and is provided with a heat exchanging water pipe 5, a heat medium water seal tank 11 which surrounds the burning chamber, a circulating water channel 9 which is arranged between the burning chamber and the heat exchanger, etc. The utility model is formed by a structure of the upper heat exchanger and the lower burning chamber, so the heat and high-temperature fume generated in the burning chamber can accomplish double heating to the circulating water channel and the heat exchanging water pipe, and the utility model effectively increases heat efficiency.

Description

The vacuum hot water unit

The utility model is the vacuum hot water unit, belongs to the heat-exchange apparatus technical field.

Vacuum hot water unit system utilizes the heat medium water in fuel oil or the combustion gas heating unit, utilize water that the principle of different steam temperatures is arranged under different pressure, heat medium water is seethed with excitement under vacuum state, the water vapour that boiling back produces again with heat-transfer pipe in flowing cold water or warm water carry out heat exchange, thereby provide heating with hot water or health hot water to the external world, whole unit is in operation under the vacuum state, compares with conventional hot water boiler, has excellent security and ease for operation.Existing vacuum hot water unit mainly is made of combustion chamber and heat-exchanging chamber etc., the single return structures setting of general employing, the burner of combustion chamber and chimney respectively place vacuum hot water unit two ends, heat that produces in its combustion chamber and high-temperature flue gas are promptly discharged by chimney after heat-exchanging chamber is heated, make the flue gas of discharging chimney still have higher temperature, reduced the thermal efficiency, and easily cause flame directly to impact smoke pipe in use, make smoke pipe impaired burning out easily, reduction of service life, and for improving the thermal efficiency as far as possible, the complete machine lateral dimension of existing vacuum hot water unit is bigger, both be unfavorable for the global design of vacuum hot-water machine group, influenced heat exchange effect and runnability again.

The purpose of this utility model provides a kind of reasonable in design, can effectively improve the vacuum hot water unit of heat exchange effect and runnability.

The utility model is the vacuum hot water unit, comprise the combustion chamber of being with burner, chimney, place the heat-exchanging chamber of top, combustion chamber band heat-transfer pipe, around combustion chamber and the heat medium water sealing groove that is communicated with heat-exchanging chamber, it is characterized in that also comprising the heat-exchanger rig that places band heat exchanging water pipe between combustion chamber and the heat-exchanging chamber, place the circulating water chennel between heat-exchanger rig and the combustion chamber, circulating water chennel is connected with the heat medium water sealing groove, and the heat exchanging water pipe two ends are connected with heat-exchanging chamber and circulating water chennel respectively.During use, burner igniting back is in the combustion chamber internal combustion, heat that produces in the burning and high-temperature flue gas, at first the heat medium water in heat medium water sealing groove and the circulating water chennel is heated, finish the heat transfer of first backhaul, upwards turn back then and enter heat-exchanger rig, pass the heat exchanging water pipe, heat medium water in the heat exchanging water pipe continues heating, heat medium water in the heat exchanging water pipe is seethed with excitement because of absorbing heat under vacuum state, finish the heat transfer of second backhaul, the water vapour after the boiling leads to heat-exchanging chamber, carry out heat exchange with heat-transfer pipe in heat-exchanging chamber, flue gas is discharged by the chimney that places the heat-exchanger rig end behind the heat exchanging water pipe.

Described chimney and burner place the same end face of vacuum hot water unit; Described heat-exchanging chamber also comprises left tube sheet and right tube sheet, heat-transfer pipe two ends in the heat-exchanging chamber can be individually fixed in left tube sheet and the right tube sheet, cold water or the warm water of water vapour heating in heat-transfer pipe by heat exchanging water pipe's output, temperature raises after making interior cold water of heat-transfer pipe or warm water absorb heat, is supplied to the place that the external world needs hot water.

The utility model adopts the version of heat-exchanger rig and combustion chamber upper and lower settings, shortened the entire length on the vacuum hot water unit, can avoid damage that the combustion chamber is caused, simultaneously, the upper and lower setting of combustion chamber and heat-exchanger rig, formation is to two heating backhauls of heat medium water, heat exchange structure is reasonable, make the heat and the high-temperature flue gas that produce in the combustion chamber realize twice heating to circulating water chennel and heat exchanging water pipe, heat exchange area is big, improve combustion thermal efficiency, effectively reduced exhaust gas temperature, alleviated the flue gas environmental pollution.The utility model compared with prior art, have reasonable in design, compact overall structure, thermal efficiency height, providing of health hot waters such as air-conditioning heating and hotel, restaurant, commercial and residential building can be provided for runnability is good, and the is low in the pollution of the environment excellent properties of Denging and good effect.

Accompanying drawing has provided structural representation of the present utility model.

Fig. 1 is an overall structure front section view of the present utility model;

Fig. 2 is an A-A face structure cutaway view shown in Figure 1;

Fig. 3 is a B-B face structure cutaway view shown in Figure 1.

Below in conjunction with embodiment the utility model is further described.

The utility model is mainly by the combustion chamber 4 of being with burner 1, place combustion chamber 4 top band heat exchanging water pipes' 5 heat-exchanger rig 10, place the heat-exchanging chamber 8 of heat-exchanger rig 10 top band heat-transfer pipes 6, around combustion chamber 4 and the heat medium water sealing groove 11 that is communicated with heat-exchanging chamber 8, place the circulating water chennel 9 that is connected with heat medium water sealing groove 11 between heat-exchanger rig 10 and the combustion chamber 4, place chimney 2 formations such as grade of heat-exchanger rig 10 ends.Chimney 2 and burner 1 place the same end face of vacuum hot water unit; The upper/lower terminal of heat exchanging water pipe 5 in the heat-exchanger rig 10 is connected with heat-exchanging chamber 8 and circulating water chennel 9 respectively; Described heat-exchanging chamber 8 is a vacuum state, heat-exchanging chamber 8 also comprises left tube sheet 3 and right tube sheet 12, left tube sheet 3 and right tube sheet 12 are fixed in the expanded joint mode in the two ends of the heat-transfer pipe 6,7 in the heat-exchanging chamber, two groups of heat-transfer pipes 6 and 7, one groups also can be set in the interior heat-exchanging chamber 8 as required be used for air-conditioning heating through delivery port 14 outputs by heat-transfer pipe 6; Another group is used for the health hot water supply by heat-transfer pipe 7 through delivery port 13 outputs.

During use, fuel oil (as light oil) after burner 1 igniting in the combustion chamber 4 internal combustion, 4 outer walls reach heat medium water sealing groove 11 and circulating water chennel 9 around the combustion chamber through the combustion chamber earlier for the heat that produces in the burning and high-temperature flue gas, to the circulation heat medium water heating in heat medium water sealing groove 11 and the circulating water chennel 9, finish the diabatic process of first backhaul; 4 ends upwards turn back and enter heat-exchanger rig 10 (direction of arrow as shown in Figure 1) in the combustion chamber for heat and high-temperature flue gas then, flow between the heat exchanging water pipe 5 who in heat-exchanger rig 10, arranges, heat again flowing into the heat medium water that first backhaul is conducted heat in the heat exchanging water pipe 5 by circulating water chennel 9, make heat medium waters in the heat exchanging water pipe 5 under vacuum state, absorb heat and seethe with excitement, thereby finish the diabatic process of second backhaul.High-temperature flue gas through with heat exchanging water pipe's 5 heat exchange after temperature reduce, and pass heat exchanging water pipe 5 space, discharge (direction of arrow as shown in Figure 1) by the chimney 2 that places heat-exchanger rig 10 ends.Because heat-exchanging chamber 8 is a vacuum state, heat medium water in the heat exchanging water pipe 5 can seethe with excitement when being lower than 100 ℃ after absorbing heat, the water vapour that the boiling back produces leads to heat-exchanging chamber 8, heat-exchanging chamber vapour is carried out heat exchange, temperature raise after cold water in the heat-transfer pipe 6,7 or warm water and water vapour carried out heat exchange, was used for air-conditioning heating and health hot water supply by delivery port 14 and 13 outputs respectively; The water vapour of heat exchanging water pipe 5 output through with heat-transfer pipe 6,7 heat exchanges after be condensed into water, fall flowing into the heat medium water sealing groove 11 that is communicated with heat-exchanging chamber 8 after rise, be used for circulating and heat heat exchange.

Claims

1, a kind of vacuum hot water unit, the combustion chamber (4) that comprises band burner (1), chimney (2), place the heat-exchanging chamber (8) of top, combustion chamber band heat-transfer pipe (6), around combustion chamber (4) and the heat medium water sealing groove (11) that is communicated with heat-exchanging chamber (8), it is characterized in that also comprising the heat-exchanger rig (10) that places between combustion chamber (4) and the heat-exchanging chamber (8) with heat exchanging water pipe (5), place the circulating water chennel (9) between heat-exchanger rig (10) and combustion chamber (4), circulating water chennel (9) is connected with heat medium water sealing groove (11), and heat exchanging water pipe (5) two ends are connected with heat-exchanging chamber (8) and circulating water chennel (9) respectively.

2,, it is characterized in that described chimney (2) and combustion chamber (4) place the same end face of vacuum hot water unit by the described vacuum hot water unit of claim 1.

3, by the described vacuum hot water unit of claim 1, it is characterized in that described heat-exchanging chamber (8) also comprises left tube sheet (3) and right tube sheet (12), heat-transfer pipe (6) two ends in the heat-exchanging chamber (8) can be individually fixed in left tube sheet (3) and the left tube sheet (12).