Waste heat utilization device for calcium carbide production

Abstract

The utility model relates to the technical field of waste heat utilization, and discloses a calcium carbide production waste heat utilization device which comprises a heating box and further comprises an air inlet pipe and an air outlet pipe which are arranged on the outer side of the heating box, a purification part is arranged on the outer side of the air outlet pipe, a water outlet pipe is fixedly connected to the outer side of the heating box, and a water storage part is arranged on the outer side of the water outlet pipe. The collecting piece is arranged on the outer side of the water storage piece and used for collecting water vapor; hot air enters the bent pipe to exchange heat to cold water in the box body to heat water, waste heat utilization is achieved, water vapor generated in the box body and the first heat preservation barrel is conveyed into the pressure tank through the pipeline and then conveyed into the second heat preservation barrel through the steam conveying pipe, heat preservation treatment can be conducted on the water in the pressure tank, and the heat preservation effect is good. The water cooling rate is slowed down, and waste of steam heat is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization, in particular to a waste heat utilization device for calcium carbide production. Background Art

[0002] Calcium carbide (CaC2), commonly known as calcium carbide, is one of the basic raw materials of the organic synthetic chemical industry. It is an important raw material for acetylene chemical industry. Acetylene produced from calcium carbide is widely used in metal welding and cutting. During the production process of calcium carbide furnace, the temperature in the furnace can reach about 2000 degrees Celsius, and the waste heat can be recycled to avoid waste of resources.

[0003] Comparative document CN218155578U discloses a waste heat utilization device for calcium carbide production, which is provided with a purification structure, one end of the exhaust pipe is arranged inside the second tank body, the interior of the second tank body is filled with purification liquid, the exhaust gas enters the interior of the purification liquid through the exhaust pipe, is purified by the purification liquid, and the discarded purification liquid is discharged through the liquid outlet. In the above device, high-temperature water vapor is generated during heat exchange treatment of the water inside the first tank body, and the heat in the water vapor cannot be utilized, resulting in waste. Utility Model Content

[0004] The purpose of the utility model is to provide a device for utilizing waste heat from calcium carbide production to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for utilizing waste heat from calcium carbide production, comprising a heating box, and also comprising: an air inlet pipe and an air outlet pipe arranged on the outside of the heating box, a purification component is arranged on the outside of the air outlet pipe, a water outlet pipe is fixedly connected to the outside of the heating box, a water storage component is arranged on the outside of the water outlet pipe; and a collecting component for collecting water vapor is arranged on the outside of the water storage component.

[0006] Preferably, the heating box comprises a box body, a curved pipe is arranged inside the box body, two ends of the curved pipe are respectively connected to the air inlet pipe and the air outlet pipe, a buckle is clamped on the outer side of the curved pipe, and the buckle is fixedly connected to the inner wall of the box body.

[0007] Preferably, the purification component comprises a purification box connected to the air outlet pipe, and a filter plate and an activated carbon plate are respectively arranged inside the purification box.

[0008] Preferably, a support base is fixedly connected to the bottom of the purification box.

[0009] Preferably, the water storage component includes a first heat-insulating barrel connected to a water outlet pipe, the outer side of the first heat-insulating barrel is connected to a second heat-insulating barrel via a conduit, and the outer side of the second heat-insulating barrel is connected to a booster pump.

[0010] Preferably, pressure gauges are provided on the outside of the first insulation barrel and the second insulation barrel, and a pressure relief valve is provided on the outside of the second insulation barrel.

[0011] Preferably, the collecting component includes a pressure tank fixedly connected to the top of the first insulation barrel, the pressure tank and the first insulation barrel and the heating box are connected through a pipeline, a steam delivery pipe is fixedly connected to the outside of the pressure tank, and a solenoid valve is arranged on the outside of the steam delivery pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model heats up the cold water in the box body and heats the water, and the waste heat is utilized. The water vapor generated in the box body and the first heat-insulating barrel is transported to the pressure tank through the pipeline, and then transported to the second heat-insulating barrel through the steam transport pipe, so that the water inside can be heat-insulated, the cooling rate of the water can be slowed down, and the waste of steam heat can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the device for utilizing waste heat from calcium carbide production provided by the utility model;

[0015] Figure 2 A schematic diagram of the heating box structure provided by the utility model;

[0016] Figure 3 A schematic diagram of the purification component structure provided by the utility model;

[0017] Figure 4 This is a schematic diagram of the collecting piece structure provided by the utility model.

[0018] In the figure: 1. heating box; 101. box body; 102. elbow; 103. buckle; 2. air inlet pipe; 3. air outlet pipe; 4. purification component; 401. purification box; 402. filter plate; 403. activated carbon plate; 5. water outlet pipe; 6. water storage component; 601. first insulation barrel; 602. conduit; 603. second insulation barrel; 604. booster pump; 7. collecting component; 701. pressure tank; 702. steam delivery pipe; 703. solenoid valve; 8. pressure gauge; 9. pressure relief valve; 10. support seat. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, a device for utilizing waste heat from calcium carbide production includes a heating box 1, and also includes: an air inlet pipe 2 and an air outlet pipe 3 arranged on the outside of the heating box 1, a purification component 4 is arranged on the outside of the air outlet pipe 3, a water outlet pipe 5 is fixedly connected to the outside of the heating box 1, and a water storage component 6 is arranged on the outside of the water outlet pipe 5; and a collecting component 7 for collecting water vapor is arranged on the outside of the water storage component 6.

[0021] It should be noted that: the hot air is transported to the interior of the heating box 1 through the air inlet pipe 2, and cold water is injected into the interior of the heating box 1. The cold water is heated by the hot air to achieve the purpose of utilizing the waste heat. The utilized exhaust gas is discharged to the interior of the purification component 4 through the air outlet pipe 3, and is discharged to the outside after being purified by the purification component 4. The heated water is transported to the water storage component 6 for storage through the water outlet pipe 5. The high-temperature water vapor generated by the water storage component 6 is collected by the collecting component 7 and then discharged to the interior of the water storage component 6 for heat preservation treatment of the water.

[0022] refer to Figure 2 and Figure 3 As shown, the heating box 1 includes a box body 101, a curved pipe 102 is arranged inside the box body 101, both ends of the curved pipe 102 are respectively connected with the air inlet pipe 2 and the air outlet pipe 3, a buckle 103 is clamped on the outer side of the curved pipe 102, and the buckle 103 is fixedly connected to the inner wall of the box body 101; the purification component 4 includes a purification box 401 connected with the air outlet pipe 3, a filter plate 402 and an activated carbon plate 403 are respectively arranged inside the purification box 401; the bottom of the purification box 401 is fixedly connected with a support seat 10. The hot air enters the bent pipe 102 and exchanges the heat with the cold water inside the box 101 to heat the water, thereby realizing waste heat utilization. The bent pipe 102 is fixed to the inside of the box 101 by means of the buckle 103. The waste gas after heat exchange enters the purification box 401, and the impurities in the gas are filtered by the filter plate 402. The harmful substances in the gas are absorbed and removed by the activated carbon plate 403, and then discharged. The purification box 401 is supported by the support seat 10 to improve its stability.

[0023] refer to Figure 1 and Figure 4As shown, the water storage component 6 includes a first insulation barrel 601 connected to the water outlet pipe 5, the outer side of the first insulation barrel 601 is connected to the second insulation barrel 603 through a conduit 602, and the outer side of the second insulation barrel 603 is connected to a booster pump 604; pressure gauges 8 are provided on the outer sides of the first insulation barrel 601 and the second insulation barrel 603, and a pressure relief valve 9 is provided on the outer side of the second insulation barrel 603; the collecting component 7 includes a pressure tank 701 fixedly connected to the top of the first insulation barrel 601, the pressure tank 701 and the first insulation barrel 601 and the heating box 1 are connected through a pipeline, the outer side of the pressure tank 701 is fixedly connected to a steam delivery pipe 702, and the outer side of the steam delivery pipe 702 is provided with a solenoid valve 703. The heated water inside the box 101 is discharged into the first insulation barrel 601. After the first insulation barrel 601 is full, the water is transported to the second insulation barrel 603 through the conduit 602. The booster pump 604 can be used to transport the water to employee dormitories and other places for use. The water vapor generated inside the box 101 and the first insulation barrel 601 is transported to the pressure tank 701 through a pipeline, and then transported to the second insulation barrel 603 through the steam delivery pipe 702. The internal water can be insulated, the water cooling rate can be slowed down, and the waste of steam heat can be avoided. The pressure inside the insulation barrel can be monitored by the pressure gauge 8, and the second insulation barrel 603 can be depressurized by the pressure relief valve 9 to avoid excessive internal pressure.

[0024] Working principle: The hot air is transported to the inside of the heating box 1 through the air inlet pipe 2 and connected to the elbow 102. The hot air enters the inside of the elbow 102 and exchanges heat with the cold water inside the box 101 to heat the water, realizing the utilization of waste heat. The waste gas after heat exchange enters the purification box 401, and the impurities in the gas are filtered through the filter plate 402. The harmful substances in the gas are absorbed and removed by the activated carbon plate 403, and then discharged. The heated water in the box 101 is discharged into the first insulation barrel 601. After the first insulation barrel 601 is full, it is discharged through the conduit 602. The water is transported to the inside of the second insulation barrel 603, and the booster pump 604 can be used to transport the water to places such as employee dormitories for use. The water vapor generated in the box 101 and the first insulation barrel 601 is transported to the inside of the pressure tank 701 through a pipeline, and then transported to the inside of the second insulation barrel 603 through the steam delivery pipe 702. The internal water can be insulated, the cooling rate of the water is slowed down, and the waste of steam heat can be avoided. The pressure inside the insulation barrel can be monitored by the pressure gauge 8, and the second insulation barrel 603 can be depressurized by the pressure relief valve 9 to avoid excessive internal pressure.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for utilizing waste heat from calcium carbide production, comprising a heating box (1), characterized in that: Also includes: An air inlet pipe (2) and an air outlet pipe (3) are arranged on the outside of the heating box (1), a purification component (4) is arranged on the outside of the air outlet pipe (3), a water outlet pipe (5) is fixedly connected to the outside of the heating box (1), and a water storage component (6) is arranged on the outside of the water outlet pipe (5); A collecting component (7) is arranged outside the water storage component (6) and is used to collect water vapor.

2. The device for utilizing waste heat from calcium carbide production according to claim 1, characterized in that: The heating box (1) comprises a box body (101), wherein a curved pipe (102) is arranged inside the box body (101), wherein two ends of the curved pipe (102) are respectively connected to an air inlet pipe (2) and an air outlet pipe (3), and a buckle (103) is clamped on the outer side of the curved pipe (102), and the buckle (103) is fixedly connected to the inner wall of the box body (101).

3. The device for utilizing waste heat from calcium carbide production according to claim 1, characterized in that: The purification element (4) comprises a purification box (401) connected to the air outlet pipe (3), and a filter plate (402) and an activated carbon plate (403) are respectively arranged inside the purification box (401).

4. The device for utilizing waste heat from calcium carbide production according to claim 3 is characterized in that: The bottom of the purification box (401) is fixedly connected to a support base (10).

5. The device for utilizing waste heat from calcium carbide production according to claim 1, characterized in that: The water storage component (6) comprises a first heat-insulating barrel (601) connected to a water outlet pipe (5); the outer side of the first heat-insulating barrel (601) is connected to a second heat-insulating barrel (603) via a conduit (602); the outer side of the second heat-insulating barrel (603) is connected to a booster pump (604).

6. The device for utilizing waste heat from calcium carbide production according to claim 5, characterized in that: The outer sides of the first heat-insulating barrel (601) and the second heat-insulating barrel (603) are both provided with pressure gauges (8), and the outer side of the second heat-insulating barrel (603) is provided with a pressure relief valve (9).

7. The device for utilizing waste heat from calcium carbide production according to claim 5, characterized in that: The collecting member (7) comprises a pressure tank (701) fixedly connected to the top of the first heat-insulating barrel (601); the pressure tank (701), the first heat-insulating barrel (601) and the heating box (1) are connected via a pipeline; a steam delivery pipe (702) is fixedly connected to the outside of the pressure tank (701); and a solenoid valve (703) is provided on the outside of the steam delivery pipe (702).

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