Quenching liquid replacing device for large quenching furnace

Abstract

The quenching liquid replacing device comprises a power box, a liquid replacing pump, a controller, a wiring terminal, a cold oil heater, a first oil pipe, a second oil pipe, a third oil pipe, a fourth oil pipe, a high-temperature-resistant pipe, a heat preservation box, a first electric control valve, a second electric control valve and a heat radiation bent pipe. The liquid supply pump is reasonable in design, the function of replacing the quenching liquid in the quenching furnace by one pump body is achieved by arranging a conveying and discharging switching pipe valve structure at the inlet and outlet port of one liquid supply pump, the quenching liquid is convenient to inject, discharge and replace, the complexity and low efficiency of injection and discharge operation are reduced, and the service life of the quenching furnace is prolonged. According to the quenching furnace, heat in discharged quenching liquid can be stored in a heat preservation mode, the cold oil heater is arranged so that the injected quenching liquid can be heated, the quenching liquid injected into the quenching furnace can be heated to the needed use state to different degrees, and the optimal kinematic viscosity and fluidity of the quenching liquid are guaranteed.

Description

Technical Field

[0001] The utility model relates to a quenching liquid replacement device for a large quenching furnace, belonging to the field of application equipment for large quenching furnaces. Background Art

[0002] As the quenching liquid in a large quenching furnace is used for a longer time at high temperature, its performance is reduced, so it is necessary to replace the quenching liquid in the large quenching furnace. In the existing quenching liquid replacement device, the power pump for replacing the quenching liquid has a single function, so that the dedicated power pumps required for discharging the quenching liquid box and injecting the quenching liquid are more complicated as a whole, and the injected quenching liquid is not heated as required. For the injected quenching liquid, the quenching liquid temperature is too low, which is not conducive to entering the quenching furnace with the best fluidity. Therefore, in view of the above problems, a quenching liquid replacement device for a large quenching furnace is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a quenching liquid replacement device for a large quenching furnace in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a quenching liquid replacing device for a large quenching furnace, comprising a power box, a liquid replacement pump, a controller, a cold oil heater, oil pipe one, oil pipe two, oil pipe three, oil pipe four, a high-temperature resistant pipe, a heat preservation box, an electric control valve one, an electric control valve two and a heat radiation pipe, an input port of the liquid replacement pump is connected and installed with one end of oil pipe two and one end of oil pipe three, and an output port of the liquid replacement pump is connected and installed with one end of oil pipe one and one end of oil pipe four, a cold oil heater is installed at a portion of oil pipe one in the power box, one side in the heat preservation box is connected with a corresponding portion of oil pipe two, and a heat radiation elbow located in the heat preservation box is connected and installed at a corresponding portion of oil pipe one.

[0005] Preferably, an electric control valve 2 is installed on the inner side of the first end of the oil pipe and the inner side of the third end of the oil pipe.

[0006] Preferably, an electric control valve 1 is installed on the inner side of one end of the oil pipe 2 and the inner side of one end of the oil pipe 4.

[0007] Preferably, the other end of the oil pipe 1 and the other end of the oil pipe 2 are both installed with high temperature resistant pipes.

[0008] Preferably, the fluid exchange pump is installed in a power box, and a side wall in the power box is fixedly connected to the cold oil heater.

[0009] Preferably, a controller is installed on the other side wall inside the power box, and the wiring terminals on the controller are arranged on the outer side wall of the power box.

[0010] The beneficial effects of the utility model are as follows: by arranging a pipe valve structure for switching between delivery and discharge at the inlet and outlet ports of a liquid supply pump, a pump body is realized to complete the function of replacing the quenching liquid inside the quenching furnace, and the injection and discharge of the quenching liquid are convenient, which reduces the cumbersome and inefficient injection and discharge operations, can insulate and store the heat in the discharged quenching liquid, and configure a cold oil heater to heat the injected quenching liquid, and can heat the quenching liquid injected into the quenching furnace to a desired use state to varying degrees, thereby ensuring the optimal kinematic viscosity and fluidity of the quenching liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0013] Figure 2 It is a front view of the overall structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the connection structure of the thermal insulation box of the utility model.

[0015] In the figure: 1. Power box; 2. Fluid exchange pump; 3. Controller; 4. Wiring terminal; 5. Cold oil heater; 6. Oil pipe 1; 7. Oil pipe 2; 8. Oil pipe 3; 9. Oil pipe 4; 10. High temperature resistant pipe; 11. Insulation box; 12. Electric control valve 1; 13. Electric control valve 2; 14. Heat radiation elbow. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0017] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] See also Figure 1-3 As shown, a quenching liquid replacement device for a large quenching furnace includes a power box 1, a liquid replacement pump 2, a controller 3, a cold oil heater 5, an oil pipe 1 6, an oil pipe 2 7, an oil pipe 3 8, an oil pipe 4 9, a high temperature resistant pipe 10, a heat preservation box 11, an electric control valve 1 12, an electric control valve 2 13 and a heat radiation pipe, an input port of the liquid replacement pump 2 is connected and installed with one end of the oil pipe 2 7 and one end of the oil pipe 3 8, and an output port of the liquid replacement pump 2 is connected and installed with one end of the oil pipe 1 6 and one end of the oil pipe 4 9, a cold oil heater 5 is installed at the position of the oil pipe 1 6 located in the power box 1, one side of the heat preservation box 11 is connected with the corresponding position of the oil pipe 2 7, and a heat radiation elbow 14 located in the heat preservation box 11 is connected and installed at the corresponding position of the oil pipe 1 6.

[0020] An electric control valve 2 13 is installed on the inner side of one end of the oil pipe 1 6 and the inner side of one end of the oil pipe 3 8; an electric control valve 12 is installed on the inner side of one end of the oil pipe 2 7 and the inner side of one end of the oil pipe 4 9; a high temperature resistant pipe 10 is installed on the other end of the oil pipe 1 6 and the other end of the oil pipe 2 7; the liquid exchange pump 2 is installed in the power box 1, and the side wall on one side of the power box 1 is fixedly connected to the cold oil heater 5; the controller 3 is installed on the other side wall of the power box 1, and the wiring terminals 4 on the controller 3 are arranged on the outer wall of the power box 1.

[0021] When the utility model is in use, the electric control valve 12 is opened and the electric control valve 2 13 is closed. Since the high temperature resistant pipe 10 is placed in the space where the quenching liquid in the quenching furnace is located, when the liquid exchange pump 2 is running, the quenching liquid in the quenching furnace is discharged through the high temperature resistant pipe 10, the oil pipe 2 7, the heat radiation elbow 14, and the oil pipe 4 9. At the same time, the heat radiation elbow 14 placed in the heat preservation box 11 conducts the heat in the quenching liquid to the heat preservation box 11.

[0022] Open the electric control valve 2 13, close the electric control valve 1 12, when the liquid exchange pump 2 is running, the oil pipe 3 8 placed in the external quenching liquid container will inject the quenching liquid into the quenching furnace through the oil pipe 3 8, the oil pipe 1 6, the insulation box 11 and the high temperature resistant pipe 10 into the space for quenching liquid in the quenching furnace, and by installing the cold oil heater 5 on the oil pipe 1 6 and the quenching oil entering the insulation box 11 containing the temperature, the quenching liquid injected into the quenching furnace can be heated to the required use state to different degrees;

[0023] In summary: by arranging a pipe valve structure for switching between delivery and discharge at the inlet and outlet ports of a liquid supply pump, a pump body can be used to complete the function of replacing the quenching liquid inside the quenching furnace, and the injection and discharge of the quenching liquid are convenient, reducing the cumbersome and inefficient injection and discharge operations, and being able to insulate and store the heat in the discharged quenching liquid and configure a cold oil heater to heat the injected quenching liquid. The quenching liquid injected into the quenching furnace can be heated to the required usage state to varying degrees, thereby ensuring the optimal kinematic viscosity and fluidity of the quenching liquid.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A quenching liquid replacement device for a large quenching furnace, characterized in that: The invention comprises a power box (1), a liquid exchange pump (2), a controller (3), a cold oil heater (5), an oil pipe 1 (6), an oil pipe 2 (7), an oil pipe 3 (8), an oil pipe 4 (9), a high temperature resistant pipe (10), a heat preservation box (11), an electric control valve 1 (12), an electric control valve 2 (13) and a heat radiation pipe. The input port of the liquid exchange pump (2) is connected with one end of the oil pipe 2 (7) and one end of the oil pipe 3 (8), and the output port of the liquid exchange pump (2) is connected with one end of the oil pipe 1 (6) and one end of the oil pipe 4 (9). The cold oil heater (5) is installed at the position of the oil pipe 1 (6) in the power box (1), one side of the heat preservation box (11) is connected with the corresponding position of the oil pipe 2 (7), and the heat radiation elbow (14) in the heat preservation box (11) is connected and installed at the corresponding position of the oil pipe 1 (6).

2. A quenching liquid replacement device for a large quenching furnace according to claim 1, characterized in that: An electric control valve 2 (13) is installed on the inner side of one end of the oil pipe 1 (6) and the inner side of one end of the oil pipe 3 (8).

3. The quenching liquid replacement device for a large quenching furnace according to claim 1, characterized in that: An electric control valve 1 (12) is installed on the inner side of one end of the oil pipe 2 (7) and the inner side of one end of the oil pipe 4 (9).

4. The quenching liquid replacement device for a large quenching furnace according to claim 1, characterized in that: The other end of the oil pipe 1 (6) and the other end of the oil pipe 2 (7) are both installed with a high temperature resistant pipe (10).

5. The quenching liquid replacement device for a large quenching furnace according to claim 1, characterized in that: The liquid exchange pump (2) is installed in the power box (1), and a side wall inside the power box (1) is fixedly connected to the cold oil heater (5).

6. The quenching liquid replacement device for a large quenching furnace according to claim 1, characterized in that: A controller (3) is installed on the other side wall of the power box (1), and the connection terminals (4) on the controller (3) are arranged on the outer side wall of the power box (1).

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