Heat exchange device for preheating drained water of setting machine

Abstract

The utility model provides a heat exchange device adopting a setting machine to discharge water and preheat, which comprises a plurality of heat exchange assemblies which are sequentially connected in series, each heat exchange assembly comprises a shell and a plurality of rows of wave-shaped heat exchange pipes, pipelines of the plurality of rows of heat exchange pipes are arranged in an up-and-down staggered manner, and the heat exchange pipes are fixed in the shell through at least two partition plates. Air inlet cavities allowing heated gas to pass through are formed between the adjacent partition plates, the inlet ends and the outlet ends of the multiple rows of heat exchange pipes are provided with a main inlet pipe and a main outlet pipe, the air inlet cavity in the first section of heat exchange assembly is used for being connected with a heated gas inlet pipe, and the air inlet cavity in the tail section of heat exchange assembly is used for being connected with a heated gas outlet pipe. The first two groups of heat exchange assemblies are used for pre-heating, stressed air enters the first two sections of air inlet cavities from a heated air inlet pipe and is pre-heated by utilizing drainage heat of the setting machine, and the pre-heated air sequentially passes through the last six sections of air inlet cavities and is heated to the temperature required by the setting machine through high-temperature steam. The heat of the waste water discharged by the setting machine is recycled, and the concept of environmental protection is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the shaping machine waste heat recovery technical field, concretely is a kind of heat exchange device using shaping machine drainage preheating. BACKGROUND

[0002] The shaping principle of the setting machine is to heat the air delivered to the heating assembly in the oven, and then deliver the heated air to the fabric to blow hot air to heat and dry the fabric, so that the fabric is set.

[0003] The setting machine will use a large amount of hot air during use, and then exhaust waste gas and wastewater, and the temperature of the wastewater is high, so if the wastewater is directly discharged, the heat in the wastewater will be wasted.

[0004] However, since the heat of the wastewater is recovered, its temperature is still far from the use temperature of the setting machine, so that some heat exchangers have no place to use the recovered heat.

[0005] Based on the above problems, the present case arises. INVENTION CONTENTS

[0006] (I) Technical problem solved

[0007] In view of the deficiencies of the prior art, the utility model provides a heat exchange device using shaping machine drainage preheating, which solves the problems raised in the above background technology.

[0008] (II) Technical scheme

[0009] To achieve the above purpose, the utility model is implemented by the following technical scheme: a heat exchange device using shaping machine drainage preheating, comprising a plurality of heat exchange components connected in series, the heat exchange component comprising a shell, a plurality of rows of wave-shaped heat exchange pipes, the pipelines of the plurality of rows of heat exchange pipes are arranged alternately up and down, the heat exchange pipes are fixed in the shell by at least two partitions, the adjacent partitions form an air inlet chamber for the heated gas to pass through, the inlet and outlet ends of the plurality of rows of heat exchange pipes are provided with a total inlet pipe and a total outlet pipe, the air inlet chamber on the first heat exchange component is used to connect the heated gas inlet pipe, and the air inlet chamber on the last heat exchange component is used to connect the heated gas outlet pipe.

[0010] Preferably, the heat exchange component is provided with eight groups, the total inlet pipe of the first two heat exchange components is used to connect the drainage pipe of the setting machine, and the total inlet pipe and the total outlet pipe of the last six heat exchange components are connected with the steam inlet and the steam outlet respectively.

[0011] (III) Beneficial effects

[0012] The utility model provides a heat exchange device using shaping machine drainage preheating. It has the following beneficial effects:

[0013] 1. The heat exchange device using the drainage preheating of the setting machine, the first two groups of heat exchange components are used as preheating, forced air enters the first two sections of air inlet cavities from the heated gas inlet pipe, and the heat of the drainage of the setting machine is used for preheating, and the preheated air passes through the last six sections of air inlet cavities in turn, and the air is heated to the required temperature of the setting machine by high-temperature steam. The heat of the waste water discharged by the setting machine is reused, which meets the concept of green environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is an axonometric view of the heat exchange component of the utility model;

[0016] Figure 3 It is a heat exchange pipe arrangement schematic view of the utility model;

[0017] Figure 4 It is a shell side sectional view of the utility model.

[0018] In the drawing: 1 heat exchange component, 2 heated gas inlet pipe, 3 heated gas outlet pipe, 4 setting machine, 5 drainage pipe, 6 steam inlet pipe, 7 steam outlet pipe, 11 shell, 12 total inlet pipe, 13 total outlet pipe, 14 heat exchange pipe, 15 partition plate, 16 air inlet cavity, 17 heat exchange fin, 18 sleeve pipe, 19 bearing seat. DETAILED DESCRIPTION

[0019] The utility model embodiment provides a kind of heat exchange device using the drainage preheating of setting machine, as shown in Figures 1-4 It includes a plurality of heat exchange components 1 in turn, and heat exchange component 1 includes shell 11, a plurality of wave-shaped heat exchange pipes 14, and the straight section pipe of adjacent upper and lower two rows of heat exchange pipes 14 is arranged staggeredly, and the heat exchange pipe 14 is arranged staggeredly to increase the resistance of passing gas, reduce its flow rate, improve the heat exchange efficiency between passing air. Heat exchange pipe 14 is fixed in shell 11 by at least two partition plates 15, and two partition plates 15 are used in the embodiment, and the air inlet cavity 16 for heated gas passing is formed between adjacent partition plates 15, and the air inlet cavity 16 is heat exchange area. The straight section pipe of heat exchange pipe 14 is located in air inlet cavity 16. The outside of partition plate 15 is used to isolate outside. The import and export end of a plurality of rows of heat exchange pipes 14 are merged and connected to be provided with total inlet pipe 12 and total outlet pipe 13. The air inlet cavity 16 on the first section heat exchange component 1 is used to connect heated gas inlet pipe 2, and the air or steam entered by heated gas inlet pipe 2. The air is used for heating of setting machine. The air inlet cavity 16 on the last section heat exchange component 1 is used to connect heated gas outlet pipe 3, and the air inlet cavity 16 on adjacent two sections of heat exchange components 1 is connected in turn.

[0020] As shown in Figure 1As shown, in the present example, eight groups of heat exchange assemblies 1 are provided; the total inlet pipe 12 of the first two groups of heat exchange assemblies 1 is used for connecting the drain pipe 5 of the setting machine 4, and the total outlet pipe 13 of the first two groups of heat exchange assemblies 1 is used for connecting the wastewater pool. The total inlet pipe 12 and the total outlet pipe 13 of the last six groups of heat exchange assemblies 1 are connected with the steam inlet 6 and the steam outlet 7 respectively, and the steam inlet 6 is provided by the total steam heating pipeline.

[0021] The first two groups of heat exchange assemblies 1 are used as preheating, and the forced air enters the first two groups of air inlet cavities 16 from the heated gas inlet pipe 2, and is preheated by the heat of the drain water of the setting machine 4, and the preheated air passes through the last six groups of air inlet cavities 16 in turn, and is heated to the required temperature of the setting machine by the high-temperature steam. The heat of the wastewater discharged by the setting machine 4 is reused, which meets the concept of green environmental protection.

[0022] Since the flow rate of the heated gas passing through the air inlet cavity 16 is fast, the heat exchange pipe 14 does not fully exchange heat before passing through this area, in order to improve the heat exchange efficiency, the heat exchange fin 17 is arranged outside the heat exchange pipe 14. The heat exchange fin 17 can be made of copper. By arranging the heat exchange fin 17, the heat exchange efficiency between the air passing through and the air can be improved.

[0023] As shown, Figure 4 Since the flow direction of the gas is fixed, and the side of the heat exchange pipe 14 facing away from the air inlet has a low contact rate with the gas, in order to enable the back of the heat exchange pipe 14 to fully exchange heat, the sleeve pipe 18 is arranged outside the straight pipe of the heat exchange pipe 14, the front and rear ends of the sleeve pipe 18 are pivoted to the partition plate 15 through the bearing seat 19, the heat exchange fin 17 is arranged on the sleeve pipe 18, and the heat exchange fin 17 is distributed at equal angles around the sleeve pipe 18. The sleeve pipe 18 can rotate around the heat exchange pipe 14 under the driving of the air inlet, so that the heat of the back of the heat exchange pipe 14 can be brought to the side facing the wind, and the heat exchange efficiency of the heat exchange pipe 14 is greatly improved.

[0024] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat exchange device employing preheating by draining water from a stenter, characterized in that: The device includes several heat exchange components (1) connected in series. Each heat exchange component (1) includes a shell (11) and several rows of corrugated heat exchange tubes (14). The tubes of the several rows of heat exchange tubes (14) are arranged vertically and vertically. The heat exchange tubes (14) are fixed in the shell (11) by at least two partitions (15). An air inlet chamber (16) is formed between adjacent partitions (15) for the heated gas to pass through. The inlet and outlet ends of the several rows of heat exchange tubes (14) are provided with a main inlet pipe (12) and a main outlet pipe (13). The air inlet chamber (16) on the first heat exchange component (1) is used to connect the heated gas inlet pipe (2), and the air inlet chamber (16) on the last heat exchange component (1) is used to connect the heated gas outlet pipe (3).

2. The heat exchange device using preheating drainage from a stenter as described in claim 1, characterized in that: The heat exchange assembly (1) is provided in eight groups. The main inlet pipe (12) of the first two heat exchange assemblies (1) is used to connect to the drain pipe (5) of the stenter (4). The main inlet pipe (12) and main outlet pipe (13) of the last six heat exchange assemblies (1) are respectively connected to the steam inlet (6) and the steam outlet (7).

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