Gas pressure protection device for smelting furnace

Abstract

The utility model discloses a gas pressure protection device for a smelting furnace, which comprises a support frame, a displacement support and a gas pipeline, support legs are arranged at the bottom of the support frame, and the gas pipeline is arranged above the support frame. A first fuel gas pressure reducing valve, a second fuel gas pressure reducing valve, a fuel gas filter and a fuel gas block valve are sequentially arranged on the fuel gas pipeline from left to right, displacement supports are arranged at the bottoms of the first fuel gas pressure reducing valve, the second fuel gas pressure reducing valve and the fuel gas filter, and the displacement supports and the supporting frame are connected together in a sliding mode. According to the utility model, the first gas pressure reducing valve and the second gas pressure reducing valve are arranged on the gas pipeline, so that dual pressure reduction can be realized, and the gas pressure is ensured to be within a safe range; meanwhile, the fuel gas cut-off valve can automatically cut off fuel gas supply when the pressure exceeds a preset threshold value, dangerous situations are prevented, and safe and stable operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a smelting furnace gas protection device, especially a smelting furnace gas pressure protection device, belongs to pipeline reconstruction technical field. BACKGROUND

[0002] With the acceleration of urbanization and the optimization of energy structure, gas as a kind of efficient, clean energy, has been widely used in industrial production and residential life. However, the safety and stability of gas system has been an important problem in gas application. Gas pressure fluctuation is one of the key factors affecting the normal operation and service life of gas equipment. In industrial production, the existing smelting furnace gas valve frame is usually only installed with one gas filter and one pressure reducing valve, and this design has obvious deficiencies when the gas pressure fluctuates. When the diaphragm of the pressure reducing valve is easily broken under high load operation, it may cause equipment damage, even cause fire, explosion, leakage and other dangerous situations. In addition, the existing gas equipment lacks effective pressure monitoring and protection measures, and cannot cut off the gas supply in time when the pressure is abnormal. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a smelting furnace gas pressure protection device, increase the number of pressure reducing valves and introduce a cutoff valve to ensure the stability of gas pressure and the safety of production, and at the same time adopt the structure of displacement support and support frame to improve the stability and safety of the equipment and facilitate installation.

[0004] The technical scheme adopted by the utility model to solve the technical problem is:

[0005] A smelting furnace gas pressure protection device, comprising a support frame, a displacement support and a gas pipeline, the bottom of the support frame is provided with a supporting leg, the upper part of the support frame is provided with a gas pipeline, the first gas pressure reducing valve, the second gas pressure reducing valve, the gas filter and the gas cutoff valve are sequentially arranged on the gas pipeline from left to right, and the displacement support is arranged at the bottom of the first gas pressure reducing valve, the second gas pressure reducing valve and the gas filter, and the displacement support and the support frame are slidably connected together.

[0006] The displacement support is three, and is fixedly connected with the support frame by bolts.

[0007] The top of the displacement support is provided with a supporting disc, the bottom of the supporting disc is provided with a screw rod, the screw rod penetrates through the displacement support and is fixed by a nut.

[0008] The bottom of the first gas pressure reducing valve, the second gas pressure reducing valve and the gas filter is located in the corresponding supporting disc respectively.

[0009] The positive beneficial effects of the utility model are:

[0010] 1. The utility model discloses a device for preventing the risk of explosion, leakage and the like caused by gas pressure fluctuation.

[0011] 2. The utility model discloses a device for preventing the risk of explosion, leakage and the like caused by gas pressure fluctuation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structure schematic view of the utility model;

[0013] Fig. 2 It is the structure schematic view of the utility model support frame;

[0014] Wherein: 1 - support frame, 2 - support leg, 3 - displacement support, 4 - support disc, 401 - screw rod, 402 - nut, 5 - first gas pressure reducing valve, 6 - second gas pressure reducing valve, 7 - gas filter, 8 - gas cutoff valve, A - gas pipeline. DETAILED DESCRIPTION

[0015] The utility model will be further explained and demonstrated in connection with the drawings as follows:

[0016] Embodiment 1, see Figs. 1-2 A gas pressure protection device for smelting furnace, including support frame 1, displacement support 3 and gas pipeline A, be provided with support leg 2 at the bottom of support frame 1, be provided with gas pipeline A at the top of support frame 1, be provided with first gas pressure reducing valve 5, second gas pressure reducing valve 6, gas filter 7 and gas cutoff valve 8 from left to right in sequence on gas pipeline A, and be provided with displacement support 3 at the bottom of first gas pressure reducing valve 5, second gas pressure reducing valve 6, gas filter 7, and displacement support 3 and support frame 1 are slidably connected together.

[0017] Displacement support 3 is three, and is fixedly connected together with support frame 1 by bolt.

[0018] Support disc 4 is provided at the top of displacement support 3, screw rod 401 is provided at the bottom of support disc 4, screw rod 401 penetrates displacement support 3 and is fixed by nut 402.

[0019] The bottom of the first gas pressure reducing valve 5, the second gas pressure reducing valve 6 and the gas filter 7 is respectively located in the corresponding support disc 4.

[0020] In the above description, the cross section of the support disc is larger than that of the displacement support, which improves the stability of the equipment.

[0021] In the above description, the displacement support is connected to the support frame by sliding, which can freely adjust the position of the displacement support according to the installation position of the newly added gas pressure reducing valve, serve as a new support, improve the installation flexibility, and facilitate the rapid installation of the staff.

[0022] In the above description, the size of the support disc can be freely adjusted according to the size of the cross section of the bottom of the equipment, and the size of the support disc is larger than that of the cross section of the bottom of the equipment.

[0023] In the above description, the support disc is fixedly connected with the displacement support through the screw rod and the nut, which is convenient for later maintenance and replacement.

[0024] In the above description, two pressure reducing valves are arranged to realize double pressure reduction, reduce the load of a single pressure reducing valve, and the cut-off valve can quickly cut off the gas supply when the pressure is abnormal.

[0025] The utility model discloses a first gas pressure reducing valve and second gas pressure reducing valve are set up on gas pipeline, can realize double pressure reduction, ensure that gas pressure is in safety range, simultaneously, gas cut -off valve can when pressure exceeds preset threshold value automatically cut off gas supply, prevent dangerous situation from happening, guarantee equipment safety, steady operation.

Claims

1. A gas pressure protection device for a smelting furnace, comprising a support frame (1), a displacement support (3) and a gas pipeline (A), characterized in that: The bottom of the support frame (1) is provided with a support leg (2), the upper portion of the support frame (1) is provided with a gas pipeline (A), the gas pipeline (A) is sequentially provided with a first gas pressure reducing valve (5), a second gas pressure reducing valve (6), a gas filter (7) and a gas cut-off valve (8) from left to right, and displacement supports (3) are arranged at the bottom of the first gas pressure reducing valve (5), the second gas pressure reducing valve (6) and the gas filter (7), and the displacement supports (3) are slidably connected with the support frame (1).

2. A gas pressure protection device for a smelting furnace according to claim 1, characterized in that: The displacement supports (3) are three in number and are fixedly connected with the support frame (1) by bolts.

3. A gas pressure protection device for a smelting furnace according to claim 1, characterized in that: The top of the displacement support (3) is provided with a support disc (4), the bottom of the support disc (4) is provided with a screw rod (401), the screw rod (401) penetrates through the displacement support (3) and is fixed by a nut (402).

4. A gas pressure protection device for a smelting furnace according to claim 1, characterized in that: The bottoms of the first gas pressure reducing valve (5), the second gas pressure reducing valve (6) and the gas filter (7) are respectively located in the corresponding support disc (4).

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