CN210292926U - Engine flue gas heat exchanger - Google Patents
Engine flue gas heat exchanger Download PDFInfo
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- CN210292926U CN210292926U CN201920239877.4U CN201920239877U CN210292926U CN 210292926 U CN210292926 U CN 210292926U CN 201920239877 U CN201920239877 U CN 201920239877U CN 210292926 U CN210292926 U CN 210292926U
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Abstract
The utility model discloses an engine gas heater belongs to the indirect heating equipment field. Comprises a water tank, a heat exchange group arranged in the water tank, a water inlet pipe arranged at the bottom end of the water tank and a water outlet pipe arranged at the top end of the water tank; heat transfer group includes the heat exchange tube of multiunit setting in the water tank, set up on the top in the water tank outside and with the intake pipe of the one end intercommunication of heat exchange tube, set up in the bottom in the water tank outside and with the outlet duct of the other end intercommunication of heat exchange tube, the utility model provides the high noise attenuation of heat exchange efficiency and heat transfer in-process reduces the noise in the working process.
Description
Technical Field
The utility model relates to a indirect heating equipment technical field, concretely relates to engine gas heater.
Background
The engine during operation, the rotatory generator electricity generation that drives of bent axle, high-temperature gas that can discharge simultaneously, in order to prevent that the waste hot gas of high temperature directly discharges the waste, current enterprise can use the heat exchanger to retrieve the waste hot gas and recycle, can do occasions such as heating and use.
However, most of the heat exchangers in the market at present adopt single-channel heat exchange, the heat exchange efficiency is low, when the inlet water temperature is 55 ℃, the flue gas temperature after heat exchange is mostly about 120 ℃, and the requirement that the discharge temperature is lower than 100 ℃ cannot be met. Simultaneously, when the heat exchanger works, gas passes through a single channel, the noise is high, and the working environment of an enterprise is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an engine gas heater to solve the gas heater heat exchange efficiency low and the great problem of noise that current engine used.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
an engine flue gas heat exchanger comprises a water tank, a heat exchange group arranged in the water tank, a water inlet pipe arranged at the bottom end of the water tank and a water outlet pipe arranged at the top end of the water tank; the heat exchange group comprises a plurality of groups of heat exchange tubes arranged in the water tank, an air inlet tube arranged at the top end outside the water tank and communicated with one end of each heat exchange tube, and an air outlet tube arranged at the bottom end outside the water tank and communicated with the other end of each heat exchange tube.
In the utility model, the high-temperature waste gas enters the heat exchange tube through the air inlet tube at the top end of the water tank and then flows out of the air outlet tube at the bottom end of the water tank, and the water flows in from the water inlet tube at the bottom end of the water tank and then flows out from the water outlet at the top end of the water tank; therefore, the high-temperature waste gas and water form reverse circulation, the heat exchange time and the heat exchange area of the high-temperature waste gas are increased through the heat exchange tube, the heat exchange efficiency and the noise attenuation in the heat exchange process are improved, and the noise is reduced.
Preferably, the outside of the water tank is provided with a detachable flange.
The utility model discloses a detachable flange has improved the convenience of maintenance.
Preferably, the heat exchange tube has a U-shape.
Preferably, the top side of the water tank is provided with a water adding pipe.
Preferably, a water discharge valve is arranged at the bottom side of the water tank.
The utility model discloses a valve that drains makes the utility model discloses under the condition that does not use winter, can put the inside water of light, prevent that water from freezing and damaging water tank and heat transfer group.
Preferably, the top side of the water tank is provided with a release valve.
The utility model discloses a bleed valve improves the leakproofness of water tank to improve heat exchange efficiency.
Preferably, the bottom end of the water tank is provided with a bracket.
Preferably, the shape of the water tank is square.
The utility model discloses a mounting space has been practiced thrift to square water tank.
Preferably, the heat exchange set is made of stainless steel.
The utility model discloses an adopt the heat transfer group of stainless steel to improve the corrosion resistance and the high temperature resistance of heat transfer group.
The utility model discloses following beneficial effect has:
the utility model discloses a set up the direction of admitting air of heat transfer group and the direction of intaking of water tank relatively, make high temperature waste gas and water form reverse circulation, improved heat exchange efficiency, increased the heat transfer time and the heat transfer area of high temperature waste gas in the water tank through the heat exchange tube that sets up at the water tank simultaneously, improved the noise decay among heat exchange efficiency and the heat transfer process, reduce the noise in the working process.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a partial cross-sectional view of the present invention.
In the figure: 1-a water tank; 2-a heat exchange set; 3-water inlet pipe; 4-water outlet pipe; 21-heat exchange tube; 22-an air inlet pipe; 23-an air outlet pipe; 5-a flange; 6-water adding pipe; 7-a water drain valve; 8-air release valve; 9-bracket.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1 to 3, the utility model discloses a heat transfer group 2 that is used for the water tank 1 of holding water and sets up in water tank 1 and is used for carrying high temperature waste gas, the shape of water tank 1 is square, has practiced thrift installation space when being convenient for lay. The heat exchange group 2 is made of stainless steel, so that the corrosion resistance and the high temperature resistance of the heat exchange group 2 are improved. Two sides of the bottom end of the water tank 1 are provided with a bracket 9 for supporting the water tank 1.
With further reference to fig. 2 to 3, a water inlet pipe 3 is provided at the bottom end of the water tank 1, and a water outlet pipe 4 is provided at the top end of the water tank 1. The top side of the water tank 1 is provided with a water adding pipe 6 for additionally adding water into the water tank 1. The top side of water tank 1 still is equipped with and is used for the unnecessary air exhaust's in the water tank 1 bleed valve 8, and the operating personnel accessible is opened bleed valve 8 and is discharged the unnecessary air of water tank 1 quilt to improve water tank 1's leakproofness, further improve the utility model discloses a heat exchange efficiency.
Referring to fig. 3, a drain valve 7 for discharging water in the water tank 1 is disposed at the bottom side of the water tank 1, and when the water tank is not used in winter, an operator can open the waterproof valve to drain the water in the water tank 1, so as to prevent the water from freezing and damaging the water tank 1 and the heat exchange unit 2.
With further reference to fig. 1 and 3, the heat exchange group 2 comprises a plurality of sets of heat exchange tubes 21 arranged in the water tank 1, an air inlet tube 22 arranged at the top end outside the water tank 1 and communicated with one end of the heat exchange tubes 21, and an air outlet tube 23 arranged at the bottom end outside the water tank 1 and communicated with the other end of the heat exchange tubes 21, wherein the heat exchange tubes 21 are U-shaped. Detachable flanges 5 are arranged between the air inlet pipe 22 and the outer side of the water tank 1 and between the air outlet pipe 23 and the outer side of the water tank 1.
After high-temperature waste gas is discharged from the engine, the high-temperature waste gas enters the heat exchange tube 21 through the air inlet tube 22 at the top end of the water tank 1 and then flows out of the air outlet tube 23 at the bottom end of the water tank 1, and water flows in from the water inlet tube 3 at the bottom end of the water tank 1 and then flows out from the water outlet tube 4 at the top end of the water tank 1; therefore, the high-temperature exhaust gas and the water form a reverse flow, and the heat in the high-temperature exhaust gas is transferred to the water in the water tank 1 through the heat exchange pipe 21.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (1)
1. An engine flue gas heat exchanger is characterized by comprising a water tank (1), a heat exchange group (2) arranged in the water tank (1), a water inlet pipe (3) arranged at the bottom end of the water tank (1) and a water outlet pipe (4) arranged at the top end of the water tank (1);
the heat exchange group (2) comprises a plurality of groups of heat exchange tubes (21) arranged in the water tank (1), an air inlet pipe (22) arranged at the top end of the outer side of the water tank (1) and communicated with one end of the heat exchange tubes (21), an air outlet pipe (23) arranged at the bottom end of the outer side of the water tank (1) and communicated with the other end of the heat exchange tubes (21),
a detachable flange (5) is arranged on the outer side of the water tank (1),
the heat exchange tube (21) is U-shaped,
a water adding pipe (6) is arranged on the top side of the water tank (1),
a water drain valve (7) is arranged at the bottom side of the water tank (1),
the top side of the water tank (1) is provided with a release valve (8),
a bracket (9) is arranged at the bottom end of the water tank (1),
the shape of the water tank (1) is square,
the heat exchange set (2) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920239877.4U CN210292926U (en) | 2019-02-22 | 2019-02-22 | Engine flue gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920239877.4U CN210292926U (en) | 2019-02-22 | 2019-02-22 | Engine flue gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210292926U true CN210292926U (en) | 2020-04-10 |
Family
ID=70059198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920239877.4U Active CN210292926U (en) | 2019-02-22 | 2019-02-22 | Engine flue gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210292926U (en) |
-
2019
- 2019-02-22 CN CN201920239877.4U patent/CN210292926U/en active Active
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