Calcium carbide furnace door cooling device
By installing a cooling chamber and cooling coil in the calorie furnace door, combined with the water inlet and return water hard pipe, the problem of insufficient cooling of the furnace door is solved, stable connection and efficient heat dissipation of the furnace door are achieved, and service life is extended and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421705287.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The cooling area of the existing calcium carbide furnace doors is insufficient, resulting in short service life, high cost, and frequent folding and damage of hoses, affecting production order.
The design is equipped with a cooling chamber and cooling coil inside the furnace door, combined with the water inlet and return water hard pipe, and is connected through a universal rotary joint to avoid the use of excessively long hose lines, increase connection stability, and install a heat insulation layer on the hose peripherals and the hard pipe peripherals to improve durability and heat recovery efficiency.
It effectively avoids frequent folding and damage of hoses, extends the service life of the furnace door, reduces maintenance costs, and ensures production continuity and safety.
Smart Images
Figure CN223138339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furnace door cooling, and is a cooling device for the furnace door of an electric calcium carbide furnace. Background Art
[0002] At present, for the furnace door used at the tapping opening of an electric calcium carbide furnace, after long-term use, it is found that its cooling area cannot meet the production requirements, resulting in a short service life and high cost. Most importantly, due to the cooling area problem of the furnace door, the service life of the electric calcium carbide furnace is seriously affected (forced major repair due to furnace wall deformation). The cost of major repair for one electric calcium carbide furnace is 5 million yuan. Extending the major repair time of the electric calcium carbide furnace can directly reduce the company's cost. Since the cooling water pipes of the furnace door of the electric calcium carbide furnace are often repeatedly folded, the pipes are prone to breakage and leakage, which may cause the load of the electric calcium carbide furnace to decrease and affect the normal production order. Summary of the Invention
[0003] The utility model provides a cooling device for the furnace door of an electric calcium carbide furnace, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problems of frequent folding and breakage of the existing long furnace door hoses.
[0004] The technical solution of the utility model is realized by the following measures: A cooling device for the furnace door of an electric calcium carbide furnace includes a furnace door, a first universal rotary joint and a second universal rotary joint. A cooling cavity is arranged inside the furnace door, and a cooling coil is arranged inside the cooling cavity. Water inlet holes and water return holes are arranged on the furnace door and are respectively communicated with the inlet and outlet of the cooling coil. The inlet of the first universal rotary joint is fixedly communicated with a water inlet hard pipe, and a water inlet hose is fixedly communicated between the outlet of the first universal rotary joint and the water inlet hole of the furnace door. The inlet of the second universal rotary joint is fixedly communicated with a water return hard pipe, and a water return hose is fixedly communicated between the second universal rotary joint and the water return hole of the furnace door.
[0005] The following is a further optimization and / or improvement of the above technical solution of the utility model:
[0006] The above also includes a water inlet joint and a water return joint. A water inlet joint is fixedly installed on the water inlet hole of the furnace door, and the water inlet hose and the water inlet hole of the furnace door are connected together through the water inlet joint. A water return joint is fixedly installed on the water return hole of the furnace door, and the water return hose and the water return hole of the furnace door are connected together through the water return joint.
[0007] Heat insulation layers are arranged on the outer sides of the above water inlet hose and water return hose. The heat insulation layer is an asbestos mesh and a refractory fiber felt arranged in sequence from inside to outside.
[0008] A heat preservation layer is arranged on the outer side of the above water return hard pipe. The heat preservation layer is glass wool or compound silicate or rock wool or refractory fiber cotton.
[0009] The above also includes a water distributor, a heat exchanger and a cooling water tank. There is a fixed connection between the outlet of the water distributor and the inlet of the first universal rotary joint with a hard water inlet pipe. There is a fixed connection between the inlet of the heat exchanger and the outlet of the second universal rotary joint with a hard water return pipe. There is a fixed connection between the cooling water tank and the inlet of the water distributor with a cooling water pipeline.
[0010] The structure of the utility model is reasonable and compact, and it is convenient to use. It mainly cools and dissipates heat from the furnace door through cooling water. By setting the hard water inlet pipe and the hard water return pipe, it avoids the use of overly long flexible hoses for the water inlet hose and the water return hose, effectively avoiding the problems of frequent folding and damage caused by directly setting long flexible hoses on the furnace door, and has the characteristics of safety and labor saving. Description of the Drawings
[0011] Appendix Figure 1 is a schematic process flow diagram of the utility model.
[0012] Appendix Figure 1 The codes in it are respectively: 1 is the furnace door, 2 is the first universal rotary joint, 3 is the second universal rotary joint, 4 is the hard water inlet pipe, 5 is the water inlet hose, 6 is the hard water return pipe, 7 is the water return hose, 8 is the water inlet hole, 9 is the water return hole, 10 is the water distributor, 11 is the heat exchanger, 12 is the cooling water tank, and 13 is the cooling water pipeline. Detailed Embodiments
[0013] The utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solutions of the utility model and the actual situation.
[0014] In the utility model, unless otherwise specified, the equipment and devices used are the existing well-known and commonly used equipment and devices in the art. For example, the water distributor and the heat exchanger can be existing well-known and commonly used equipment.
[0015] In the utility model, for the convenience of description, the description of the relative positional relationship of each component is based on the layout mode of the attached drawings of the specification. For example, the positional relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the attached drawings of the specification. Figure 1 of the specification. Figure 1 to determine.
[0016] The following further describes the utility model in conjunction with the embodiments and the drawings:
[0017] Embodiment 1: As shown in Appendix Figure 1As shown in the figure, the cooling device for the furnace door of the calcium carbide furnace includes a furnace door 1, a first universal rotary joint 2, and a second universal rotary joint 3. A cooling cavity is provided inside the furnace door 1, and a cooling coil is arranged in the cooling cavity. An inlet hole 8 and a return hole 9 are provided on the furnace door 1, which are respectively communicated with the inlet and outlet of the cooling coil. The inlet of the first universal rotary joint 2 is fixedly connected with a hard inlet pipe 4, and a flexible inlet pipe 5 is fixedly connected between the outlet of the first universal rotary joint 2 and the inlet hole 8 of the furnace door 1. The inlet of the second universal rotary joint 3 is fixedly connected with a hard return pipe 6, and a flexible return pipe 7 is fixedly connected between the second universal rotary joint 3 and the return hole 9 of the furnace door 1.
[0018] The utility model mainly cools and dissipates heat from the furnace door 1 through cooling water. By setting the hard inlet pipe 4 and the hard return pipe 6, it is avoided that the flexible inlet pipe 5 and the flexible return pipe 7 use overly long hose pipelines. Overly long hose pipelines often have the problem that repeated folding is likely to cause damage and leakage. This effectively avoids the problem of frequent folding and damage caused by directly setting long hose pipelines on the furnace door 1. At the same time, through the first universal rotary joint 2 and the second universal rotary joint 3 provided, the connection stability between the hard inlet pipe 4, the hard return pipe 6 and the flexible inlet pipe 5 and the flexible return pipe 7 can be improved. If only the hard inlet pipe 4 and the hard return pipe 6 are set, it will cause limitations in the position and angle change caused by the opening of the furnace door 1.
[0019] According to actual needs, the above cooling device for the furnace door of the calcium carbide furnace can be further optimized and / or improved:
[0020] Embodiment 2: The difference from Embodiment 1 is that as shown in the attached Figure 1 figure, it further includes an inlet joint and a return joint. An inlet joint is fixedly installed on the inlet hole 8 of the furnace door 1, and the flexible inlet pipe 5 is connected to the inlet hole 8 of the furnace door 1 through the inlet joint. A return joint is fixedly installed on the return hole of the furnace door 1, and the flexible return pipe 7 is connected to the return hole of the furnace door 1 through the return joint. Through such a setting, the connection between the flexible inlet pipe 5 and the flexible return pipe 7 and the furnace door 1 is made tight. According to needs, the inlet joint and the return joint are existing well-known and commonly used high-temperature resistant joints.
[0021] Embodiment 3: The difference from Embodiments 1 to 2 is that as shown in the attached Figure 1 figure, heat insulation layers are provided on the outer sides of the flexible inlet pipe 5 and the flexible return pipe 7. The heat insulation layer is an asbestos mesh and a ceramic fiber felt arranged in sequence from the inside to the outside. Through such a setting, it can reduce the influence of high temperature aging on the flexible inlet pipe 5 and the flexible return pipe 7 and affect their service life.
[0022] Embodiment 4: The difference from Embodiments 1 to 3 is that as shown in the attached Figure 1As shown, a heat preservation layer is provided outside the return water hard pipe 6, and the heat preservation layer is glass wool, composite silicate, rock wool or aluminum silicate wool. Through such a setting, heat loss can be reduced, which is beneficial to heat recovery.
[0023] Embodiment 5: The difference from Embodiments 1 to 4 is that as shown in the appendix Figure 1 As shown, it further includes a water distributor 10, a heat exchanger 11 and a cooling water tank 12. There is a fixed connection and communication between the outlet of the water distributor 10 and the inlet of the first universal rotary joint 2 with a water inlet hard pipe 4. There is a fixed connection and communication between the inlet of the heat exchanger 11 and the outlet of the second universal rotary joint 3 with a return water hard pipe 6. There is a fixed connection and communication between the cooling water tank 12 and the inlet of the water distributor 10 with a cooling water pipeline 13. By providing the cooling water tank 12 and the water distributor 10, cooling water is provided to the cooling coil of the furnace door 1. By providing the heat exchanger 11, heat recovery can be achieved after the water outlet.
[0024] According to needs, on each pipeline and equipment of the calcium carbide furnace door cooling device, conventional valves, thermometers, pressure gauges, etc. well-known and commonly used in the art can also be provided according to production needs.
[0025] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effects. Non-essential technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
[0026] The usage process of the embodiment of the present utility model: Cooling water is sent from the cooling water tank 12 to the water distributor 10, and then the water distributor 10 sends the cooling water to the cooling coil in the furnace door 1 through the water inlet hard pipe 4 and the water inlet flexible pipe 5 to cool down and dissipate heat the furnace door 1. Then the return water is sent to the heat exchanger 11 through the return water flexible pipe 7 and the return water hard pipe 6 to recover heat.
Claims
1. A cooling device for the furnace door of an electric calcium carbide furnace, characterized in that It includes a furnace door, a first universal rotary joint, and a second universal rotary joint. A cooling cavity is provided inside the furnace door, and a cooling coil is provided inside the cooling cavity. An inlet hole and a return hole, which are respectively communicated with the inlet and outlet of the cooling coil, are provided on the furnace door. The inlet of the first universal rotary joint is fixedly communicated with a hard inlet pipe, and a flexible inlet pipe is fixedly communicated between the outlet of the first universal rotary joint and the inlet hole of the furnace door. The inlet of the second universal rotary joint is fixedly communicated with a hard return pipe, and a flexible return pipe is fixedly communicated between the second universal rotary joint and the return hole of the furnace door.
2. The cooling device for the electric calcium carbide furnace door according to claim 1, wherein It further includes an inlet joint and a return joint. The inlet joint is fixedly installed on the inlet hole of the furnace door, and the flexible inlet pipe and the inlet hole of the furnace door are connected together through the inlet joint. The return joint is fixedly installed on the return hole of the furnace door, and the flexible return pipe and the return hole of the furnace door are connected together through the return joint.
3. The cooling device for the electric calcium carbide furnace door according to claim 1 or 2, characterized in that Heat insulation layers are provided on the outer sides of the flexible inlet pipe and the flexible return pipe. The heat insulation layer is an asbestos mesh and a layer of aluminum silicate fiber felt arranged in sequence from the inside to the outside.
4. The cooling device for the furnace door of the calcium carbide furnace according to claim 1 or 2, characterized in that A heat preservation layer is provided on the outer side of the hard return pipe. The heat preservation layer is glass wool, or composite silicate, or rock wool, or aluminum silicate wool.
5. The electric furnace door cooling device according to claim 3, characterized in that A heat preservation layer is provided on the outer side of the hard return pipe. The heat preservation layer is glass wool, or composite silicate, or rock wool, or aluminum silicate wool.
6. The electric furnace door cooling device according to claim 1 or 2 or 5, characterized in that It further includes a water distributor, a heat exchanger, and a cooling water tank. A hard inlet pipe is fixedly communicated between the outlet of the water distributor and the inlet of the first universal rotary joint. A hard return pipe is fixedly communicated between the inlet of the heat exchanger and the outlet of the second universal rotary joint. A cooling water pipeline is fixedly communicated between the cooling water tank and the inlet of the water distributor.
7. The cooling device for the electric calcium carbide furnace door according to claim 3, wherein It further includes a water distributor, a heat exchanger, and a cooling water tank. A hard inlet pipe is fixedly communicated between the outlet of the water distributor and the inlet of the first universal rotary joint. A hard return pipe is fixedly communicated between the inlet of the heat exchanger and the outlet of the second universal rotary joint. A cooling water pipeline is fixedly communicated between the cooling water tank and the inlet of the water distributor.
8. The cooling device for the electric calcium carbide furnace door according to claim 4, wherein It further includes a water distributor, a heat exchanger, and a cooling water tank. A hard inlet pipe is fixedly communicated between the outlet of the water distributor and the inlet of the first universal rotary joint. A hard return pipe is fixedly communicated between the inlet of the heat exchanger and the outlet of the second universal rotary joint. A cooling water pipeline is fixedly communicated between the cooling water tank and the inlet of the water distributor.