CN215177168U - Waste heat recovery device - Google Patents

Abstract

The utility model discloses a waste heat recovery device, comprising a base plate, the left side at bottom plate top is provided with the one-level heat exchanger, the right side at bottom plate top is provided with the second grade heat exchanger, the top intercommunication of one-level heat exchanger has the waste gas intake pipe. The utility model discloses a set up the alkali lye outlet pipe, the second grade heat exchanger, the second desalination outlet pipe, the circulating pump, the desalination inlet tube, the alkali lye inlet tube, first desalination outlet pipe, the one-level heat exchanger, waste gas intake pipe and waste gas outlet duct, can make waste gas and desalination carry out the heat exchange through the one-level heat exchanger, the desalination after the heating carries out the heat exchange with alkali lye again, the desalination rethread circulating pump that the heat transfer back cooling got off is carried to the desalination inlet tube in, the circulation heat transfer of system is realized, thoroughly solved alkali lye and corroded the problem that causes the weeping to the heat exchanger material under high temperature, the work efficiency of equipment has been promoted, the operation maintenance cost of device has been reduced.

Description

Waste heat recovery device

Technical Field

The utility model relates to a waste heat recovery technical field specifically is waste heat recovery device.

Background

The waste heat recovery technology is widely applied to the fields of metallurgy, chemical engineering and thermal power generation as an energy-saving means, realizes energy recycling and utilization through heat exchange, adopts the heat exchange of combustion waste gas and alkali liquor through a tubular heat exchanger in the prior art to complete alkali liquor heating work, realizes waste heat recycling and achieves the purpose of energy saving, although energy saving can be realized, alkali liquor exchanges heat with waste gas through the heat exchanger in practical application, and the alkali liquor has a corrosion effect on the heat exchanger at high temperature, so that the heat exchanger is frequently damaged; the existence of the defects not only causes the low use efficiency of the preheating recovery system, but also causes the environmental pollution caused by the alkali liquor leakage due to the damage of the heat exchanger, and also causes the increase of the operation cost and the operation maintenance cost due to the frequent damage of the heat exchanger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste heat recovery device possesses low in production cost, and machining efficiency is high, and long service life's advantage has solved current waste heat recovery device and has easily appeared the heat exchanger and damage and lead to alkali lye to leak, has caused environmental pollution to the frequent damage of heat exchanger still causes the problem of running cost and operation maintenance cost increase.

In order to achieve the above object, the utility model provides a following technical scheme: the waste heat recovery device comprises a bottom plate, wherein a primary heat exchanger is arranged on the left side of the top of the bottom plate, a secondary heat exchanger is arranged on the right side of the top of the bottom plate, a waste gas inlet pipe is communicated with the top of the primary heat exchanger, a waste gas outlet pipe is communicated with the bottom of the primary heat exchanger, an alkali liquid inlet pipe is communicated with the top of the secondary heat exchanger, an alkali liquid outlet pipe is communicated with the bottom of the secondary heat exchanger, a circulating pump is arranged on the right side of the secondary heat exchanger, a desalted water inlet pipe is communicated with a water outlet of the circulating pump, the left end of the desalted water inlet pipe penetrates through and extends to the upper end of the inner cavity of the primary heat exchanger, a first desalted water outlet pipe is communicated with the lower end of the right side of the inner cavity of the primary heat exchanger, the right end of the first desalted water outlet pipe penetrates and extends to the lower end of the inner cavity of the secondary heat exchanger, and a water pumping port of the circulating pump is communicated with a second desalted water outlet pipe, the lower end of the second desalted water outlet pipe penetrates and extends to the lower end of the inner cavity of the secondary heat exchanger.

Preferably, the two sides of the bottom plate are fixedly connected with non-slip mats, and the surfaces of the non-slip mats are provided with non-slip lines.

Preferably, the left side fixedly connected with support frame of circulating pump, and the left end of support frame and the outer wall fixed connection of second grade heat exchanger.

Preferably, the bottom fixedly connected with first supporting seat of one-level heat exchanger, the bottom fixedly connected with second supporting seat of second grade heat exchanger, the bottom of second supporting seat and first supporting seat all with the top fixed connection of bottom plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the alkali lye outlet pipe, the second grade heat exchanger, the second desalination outlet pipe, the circulating pump, the desalination inlet tube, the alkali lye inlet tube, first desalination outlet pipe, the one-level heat exchanger, waste gas intake pipe and waste gas outlet duct, can make waste gas and desalination carry out the heat exchange through the one-level heat exchanger, the desalination after the heating carries out the heat exchange with alkali lye again, the desalination rethread circulating pump that the heat transfer back cooling got off is carried to the desalination inlet tube in, the circulation heat transfer of system is realized, thoroughly solved alkali lye and corroded the problem that causes the weeping to the heat exchanger material under high temperature, the work efficiency of equipment has been promoted, the operation maintenance cost of device has been reduced.

2. The utility model discloses a set up slipmat and anti-skidding line, can increase the frictional force between device bottom and the ground, the stability of device has effectively been promoted, through setting up the support frame, can play fixed effect to the circulating pump, the stability of circulating pump has been promoted, the vibrations that the circulating pump produced at the operation in-process have effectively been alleviateed, through setting up second supporting seat and first supporting seat, can play the fixed effect of support to second grade heat exchanger and one-level heat exchanger, the stability of second grade heat exchanger and one-level heat exchanger has effectively been promoted.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a base plate; 2. an alkali liquor outlet pipe; 3. a non-slip mat; 4. a second support seat; 5. a secondary heat exchanger; 6. a second desalted water outlet pipe; 7. a circulation pump; 8. a desalted water inlet pipe; 9. an alkali liquor inlet pipe; 10. a first desalted water outlet pipe; 11. a primary heat exchanger; 12. an exhaust gas inlet pipe; 13. an exhaust gas outlet pipe; 14. a first supporting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a bottom plate 1, alkali lye outlet pipe 2, slipmat 3, second supporting seat 4, second grade heat exchanger 5, second demineralized water outlet pipe 6, circulating pump 7, demineralized water inlet tube 8, alkali lye inlet tube 9, first demineralized water outlet pipe 10, one-level heat exchanger 11, waste gas intake pipe 12, waste gas outlet pipe 13 and 14 parts of first supporting seat are the general standard or the part that technical personnel in the field know, its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical personnel.

Referring to fig. 1, the waste heat recovery device comprises a bottom plate 1, a first-stage heat exchanger 11 is arranged on the left side of the top of the bottom plate 1, a second-stage heat exchanger 5 is arranged on the right side of the top of the bottom plate 1, a waste gas inlet pipe 12 is communicated with the top of the first-stage heat exchanger 11, a waste gas outlet pipe 13 is communicated with the bottom of the first-stage heat exchanger 11, an alkali liquor inlet pipe 9 is communicated with the top of the second-stage heat exchanger 5, an alkali liquor outlet pipe 2 is communicated with the bottom of the second-stage heat exchanger 5, a circulating pump 7 is arranged on the right side of the second-stage heat exchanger 5, a support frame is fixedly connected to the left side of the circulating pump 7, the left end of the support frame is fixedly connected with the outer wall of the second-stage heat exchanger 5, the support frame is arranged to fix the circulating pump 7, the stability of the circulating pump 7 is improved, the vibration of the circulating pump 7 in the operation process is effectively reduced, a water outlet of the circulating pump 7 is communicated with a desalted water inlet pipe 8, the left end of a desalted water inlet pipe 8 penetrates and extends to the upper end of an inner cavity of a primary heat exchanger 11, the lower end on the right side of the inner cavity of the primary heat exchanger 11 is communicated with a first desalted water outlet pipe 10, the right end of the first desalted water outlet pipe 10 penetrates and extends to the lower end of an inner cavity of a secondary heat exchanger 5, a water pumping port of a circulating pump 7 is communicated with a second desalted water outlet pipe 6, the lower end of the second desalted water outlet pipe 6 penetrates and extends to the lower end of the inner cavity of the secondary heat exchanger 5, anti-slip pads 3 are fixedly connected to the two sides of the bottom of a base plate 1, anti-slip patterns are arranged on the surfaces of the anti-slip pads 3, the friction force between the bottom of the device and the ground can be increased by arranging the anti-slip patterns 3, the stability of the device is effectively improved, a first supporting seat 14 is fixedly connected to the bottom of the primary heat exchanger 11, a second supporting seat 4 is fixedly connected to the bottom of the secondary heat exchanger 5, the second supporting seat 4 and the bottom of the first supporting seat 14 are fixedly connected to the top of the base plate 1, through the arrangement of the second supporting seat 4 and the first supporting seat 14, the second-stage heat exchanger 5 and the first-stage heat exchanger 11 can be supported and fixed, the stability of the second-stage heat exchanger 5 and the first-stage heat exchanger 11 is effectively improved, through the arrangement of the alkali liquor outlet pipe 2, the second-stage heat exchanger 5, the second desalted water outlet pipe 6, the circulating pump 7, the desalted water inlet pipe 8, the alkali liquor inlet pipe 9, the first desalted water outlet pipe 10, the first-stage heat exchanger 11, the waste gas inlet pipe 12 and the waste gas outlet pipe 13, the waste gas and the desalted water can be subjected to heat exchange through the first-stage heat exchanger 11, then the heated desalted water and the alkali liquor are subjected to heat exchange, the desalted water cooled after heat exchange is conveyed to the desalted water inlet pipe 8 through the circulating pump 7, the circulating heat exchange of the system is realized, and the problem of liquid leakage caused by the corrosion of the alkali liquor to the heat exchanger material at high temperature is thoroughly solved, the working efficiency of the equipment is improved, and the operation and maintenance cost of the device is reduced.

During the use, burning waste gas gets into in the one-level heat exchanger 11 through waste gas intake pipe 12 and heats the desalinized water, the desalinized water after the heating gets into in the second grade heat exchanger 5 through first desalinized water outlet pipe 10 and heats alkali lye, the desalinized water that cools off after the heat transfer discharges through second desalinized water outlet pipe 6, can carry the desalinized water after the cooling to in the desalinized water inlet tube 8 through circulating pump 7 operation, get into in the one-level heat exchanger 11 through desalinized water inlet tube 8 and carry out the heat exchange with burning waste gas, the circulation heat transfer of system is realized, the problem that alkali lye corrodes the heat exchanger material under high temperature and causes the weeping has thoroughly been solved, the work efficiency of equipment has been promoted, the operation maintenance cost of device has been reduced, cooperation through the above-mentioned structure, can make the device reach low in production cost, high processing efficiency, long service life, and is suitable for being generalized to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. Waste heat recovery device, including bottom plate (1), its characterized in that: the left side at bottom plate (1) top is provided with one-level heat exchanger (11), the right side at bottom plate (1) top is provided with second grade heat exchanger (5), the top intercommunication of one-level heat exchanger (11) has waste gas intake pipe (12), the bottom intercommunication of one-level heat exchanger (11) has waste gas outlet duct (13), the top intercommunication of second grade heat exchanger (5) has alkali lye inlet tube (9), the bottom intercommunication of second grade heat exchanger (5) has alkali lye outlet pipe (2), the right side of second grade heat exchanger (5) is provided with circulating pump (7), the outlet intercommunication of circulating pump (7) has desalted water inlet tube (8), the left end of desalted water inlet tube (8) runs through the upper end that extends to one-level heat exchanger (11) inner chamber, the lower extreme intercommunication on one-level heat exchanger (11) inner chamber right side has first desalted water outlet pipe (10), the right-hand member of first demineralized water outlet pipe (10) runs through the lower extreme that extends to second grade heat exchanger (5) inner chamber, the mouth intercommunication that draws water of circulating pump (7) has second demineralized water outlet pipe (6), the lower extreme of second demineralized water outlet pipe (6) runs through the lower extreme that extends to second grade heat exchanger (5) inner chamber.

2. The waste heat recovery device according to claim 1, characterized in that: the anti-skidding floor is characterized in that anti-skidding pads (3) are fixedly connected to two sides of the bottom plate (1), and anti-skidding lines are formed in the surfaces of the anti-skidding pads (3).

3. The waste heat recovery device according to claim 1, characterized in that: the left side fixedly connected with support frame of circulating pump (7), and the outer wall fixed connection of the left end and second grade heat exchanger (5) of support frame.

4. The waste heat recovery device according to claim 1, characterized in that: the bottom fixedly connected with first supporting seat (14) of one-level heat exchanger (11), the bottom fixedly connected with second supporting seat (4) of second grade heat exchanger (5), the bottom of second supporting seat (4) and first supporting seat (14) all with the top fixed connection of bottom plate (1).

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