CN213208715U - Pipe network type heat exchanger - Google Patents

Abstract

The utility model relates to a pipe network formula heat exchanger. Including the fixed support steelframe that sets up in the flue of level, support the steelframe and be the setting of multirow multiseriate, the level is provided with multirow heating tube in supporting the steelframe, and heating tube is the spring winding form, and heating tube in the support steelframe of same one is parallelly connected on same inlet manifold and outlet manifold, and inlet manifold and outlet manifold interval set up. The utility model discloses directly arrange in the flue, reduced the volume that the heat exchanger ware was arranged outside the stove and arranged, arrange bigger heat transfer area in littleer volume, it has small advantage to compare U type pipe and shell and tube fluoroplastics heat exchanger, use single support steelframe as the heat transfer unit, it is fixed reliable to support between the steelframe, conveniently install and remove, the process of maintenance has been made things convenient for, it is the setting of multirow multiseriate to support the steelframe, multistage heat transfer has been realized, the heat transfer mode of multistage attemperation, it has increased the heat transfer volume to compare the single-stage and arrange, reduce the heat transfer fault tolerance, can show the improvement heat transfer volume.

Description

Pipe network type heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger, concretely relates to pipe network formula heat exchanger.

Background

The heat loss of the exhaust smoke is an important proportion of the heat loss of each boiler. By deeply analyzing various factors influencing the heat loss of the smoke of the coal-fired boiler, specific measures are provided and implemented, the heat loss of the smoke is effectively reduced, and the boiler efficiency is greatly improved. The flue gas waste heat recovery mode has a plurality of, wherein the most efficient is flue gas-other working medium heat exchangers, and common shell and tube type and U-shaped tubular flue gas waste heat recovery heat exchangers can effectively reduce the loss of flue gas waste heat as unrecovered energy, but the distribution of the heat exchangers is in array arrangement, the contact area of the heat exchangers and flue gas is small, the residence time of the flue gas is short, and the recovered waste heat is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above-mentioned problem provide a pipe network formula heat exchanger.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pipe network formula heat exchanger, includes the fixed support steelframe that sets up in the flue of level, it is the setting of multirow multiseriate to support the steelframe in the level be provided with multirow heating water pipe, heating water pipe is the spring winding form, and heating water pipe in the support steelframe of same one connects in parallel on same water inlet header pipe and water outlet header pipe, water inlet header pipe and water outlet header pipe interval set up to realize the orderly intaking and the play water of multiseriate heating water pipe.

Furthermore, it is same all be provided with the transition water tank between heating water pipe in the support steelframe and inlet manifold and the water header, import header and the heat exchange time of the extension working medium that the header all can be of certain range with the flue gas of play, reinforcing heat transfer effect. Meanwhile, when the working medium flowing out of the multiple rows of heating water pipes flows to the same water outlet header, the working medium can be mixed and flows to the communicating pipe after averaging the temperature of each heating water pipe in the same supporting steel frame.

And furthermore, the heating water pipe, the water inlet main pipe and the water outlet main pipe are all polytetrafluoroethylene pipes, and the transition water tank is a polytetrafluoroethylene water tank.

Further, the supporting steel frame is a cobalt-based alloy frame.

Furthermore, the diameter of the water outlet main pipe is gradually increased from top to bottom so as to reduce the flowing resistance of the heated working medium flowing downwards under the action of gravity after coming out.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses directly arrange in the flue, reduced the volume that the heat exchanger ware was arranged outside the stove and arranged, arrange bigger heat transfer area in less volume, it has small advantage to compare U type pipe and shell and tube fluoroplastics heat exchanger, use single support steelframe as the heat transfer unit, it is reliable to support fixing between the steelframe, conveniently install and remove, the process of maintenance is facilitated, support the steelframe and be the setting of multirow multiseriate, the heat transfer mode of multistage heat transfer, multistage desuperheating is realized, the heat transfer volume has been increased to compare single-stage arrangement, reduce the heat transfer offset, can show improvement heat transfer volume, the heating water pipe in the support steelframe is horizontal setting, the area of contact of heating water pipe and flue gas has been increased, the waste heat utilization ratio of flue gas has;

2. the heating water pipe of the utility model is in a spring winding shape, contact neps with the flue gas are increased in the same volume, meanwhile, the contact time of the flue gas and the heating water pipe can be increased by the spring winding shape heating water pipe, and the heat exchange effect is enhanced;

3. the utility model discloses the heating water pipe is polytetrafluoroethylene pipe, and coefficient of surface friction is less, the not suitable adhesion of scale deposit, and comprehensive heat transfer performance is higher.

Drawings

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

FIG. 2 is a schematic structural view of the support steel frame of the present invention;

in the figure, a supporting steel frame-1, a heating water pipe-2, a water inlet main pipe-3, a water outlet main pipe-4 and a transition water tank-5.

Detailed Description

In order to further illustrate the technical solution of the present invention, the present invention is further explained by the following embodiments.

As shown in fig. 1, a pipe network type heat exchanger includes a supporting steel frame 1 horizontally and fixedly disposed in a flue, the supporting steel frame 1 is disposed in multiple rows and multiple columns, multiple rows of heating water pipes 2 are horizontally disposed in the supporting steel frame 1, the heating water pipes 2 are wound by springs, the heating water pipes 2 in the supporting steel frame 1 in the same column are connected in parallel to a same water inlet header pipe 3 and a same water outlet header pipe 4, and the diameter of the water outlet header pipe 4 is gradually increased from top to bottom to reduce the flowing resistance of heated working media flowing downwards under the action of gravity after coming out. The water inlet header pipe 3 and the water outlet header pipe 4 are arranged at intervals to realize ordered water inlet and outlet of the multiple rows of heating water pipes 2. It is same support all to be provided with transition water tank 5 between heating water pipe 2 in the steelframe 1 and inlet manifold 3 and the outlet manifold 4. The heating water pipe 2, the water inlet main pipe 3 and the water outlet main pipe 4 are all polytetrafluoroethylene pipes, and the transition water tank 5 is a polytetrafluoroethylene water tank. The supporting steel frame 1 is a cobalt-based alloy frame.

The essential features and advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A pipe-network heat exchanger characterized in that: including the fixed support steelframe (1) that sets up in the flue of level, support steelframe (1) and be multirow multiseriate setting support steelframe (1) interior level and be provided with multirow heating water pipe (2), heating water pipe (2) are the spring winding form, and heating water pipe (2) in the support steelframe (1) of same row connect in parallel on same inlet manifold (3) and outlet manifold (4), inlet manifold (3) and outlet manifold (4) interval set up to realize the orderly inlet and outlet water of multiseriate heating water pipe (2).

2. A pipe-grid heat exchanger according to claim 1, wherein: the water heater is characterized in that a transition water tank (5) is arranged between a heating water pipe (2) in the support steel frame (1) and the water inlet header pipe (3) and the water outlet header pipe (4).

3. A pipe-grid heat exchanger according to claim 2, wherein: the heating water pipe (2), the water inlet main pipe (3) and the water outlet main pipe (4) are polytetrafluoroethylene pipes, and the transition water tank (5) is a polytetrafluoroethylene water tank.

4. A pipe-grid heat exchanger according to claim 1, wherein: the support steel frame (1) is a cobalt-based alloy frame.

5. A pipe-grid heat exchanger according to claim 1, wherein: the diameter of the water outlet main pipe (4) is gradually increased from top to bottom so as to reduce the flowing resistance of the heated working medium flowing downwards under the action of gravity after coming out.

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