Vacuum low pressure carburating oil quenching furnace with rapid cooling function

Abstract

The utility model discloses a vacuum low pressure carburizing oil quenching furnace of quick cooling, including bottom plate, the top of bottom plate is fixedly connected with the placing table through the support, the top of placing table is installed with the furnace body through the support, the inner chamber of furnace body is equipped with the cooling tank, the inner chamber of cooling tank is provided with the heat exchange coil pipe, the top of bottom plate is fixedly connected with the box through the support. The utility model discloses through setting up heat exchange coil pipe in the cooling tank of furnace body inner chamber, and utilizing pump machine, makes the coolant in the water tank circulation flow in heat exchange coil pipe, can quickly take away the heat in the furnace body, realizes quick cooling, utilizes water temperature detector, can real -time monitoring coolant's temperature in the water tank, utilizes liquid level sensor, can monitor the water level of coolant, utilizes PLC controller, can receive these data, and according to these data, accurate control refrigerator's operation and pump machine, thereby realizes accurate temperature control to the cooling process of furnace body.

Description

Technical Field

[0001] This utility model relates to the field of vacuum low-pressure carburizing oil quenching furnace technology, specifically a vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling. Background Technology

[0002] Vacuum low-pressure carburizing and oil quenching furnaces occupy an important position in the metal heat treatment industry. They are mainly used for carburizing and quenching metal workpieces to improve the surface and mechanical properties of metals. However, the current cooling methods of vacuum low-pressure carburizing and oil quenching furnaces are inefficient. After the carburizing and quenching processes are completed, the furnace body cools down slowly, resulting in a longer production cycle. This not only reduces production efficiency but also increases energy costs. Therefore, we propose a vacuum low-pressure carburizing and oil quenching furnace that can cool down quickly. Utility Model Content

[0003] The purpose of this invention is to provide a vacuum low-pressure carburizing oil quenching furnace that can rapidly cool down, thus solving the problem of low efficiency in the current vacuum low-pressure carburizing oil quenching furnace cooling method. After the carburizing and quenching processes are completed, the furnace body cools down slowly, resulting in a longer production cycle. This not only reduces production efficiency but also increases energy consumption costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling, comprising a base plate, a placement platform fixedly connected to the top of the base plate via a bracket, a furnace body mounted on the top of the placement platform via a bracket, a cooling groove provided in the inner cavity of the furnace body, a heat exchange coil provided in the inner cavity of the cooling groove, a box body fixedly connected to the top of the base plate via a bracket, a water tank provided in the inner cavity of the box body, a liquid level sensor fixedly connected to the top of the inner cavity of the water tank, a water temperature detector fixedly connected to the bottom of the inner cavity of the water tank, a pump fixedly connected to the rear end of the inner cavity of the water tank, the outlet of the pump fixedly connected to the inlet of the heat exchange coil via a pipe, the outlet of the heat exchange coil fixedly connected to the top of the inner cavity of the water tank via a pipe, a cooling tank provided in the lower part of the inner cavity of the box body, a cooler fixedly connected to the bottom of the inner cavity of the cooling tank, and an audible and visual alarm fixedly connected to the left end of the top of the placement platform.

[0005] Preferably, a hydrochloric acid solution storage tank is fixedly connected to the rear end of the top of the placement platform, a short pipe is fixedly connected to the bottom of the hydrochloric acid solution storage tank, the bottom of the short pipe is fixedly connected to the top of the inner cavity of the water tank, and a solenoid valve is fixedly connected to the inner cavity of the short pipe.

[0006] Preferably, the heat dissipation surface of the cooler extends to the lower end of the bottom of the housing, and the heat dissipation surface of the cooler is provided with a radiator.

[0007] Preferably, a drain outlet is provided at the lower part of the front of the water tank, a valve is installed inside the drain outlet, and a water inlet is provided at the top of the water tank.

[0008] Preferably, the bottom plate has fixing blocks fixedly connected to both the front and rear ends on the left and right sides, and bolts are provided on the fixing blocks.

[0009] Preferably, a display is fixedly connected to the left end of the front of the housing, and a PLC controller is fixedly connected to the right end of the front of the housing. The input terminals of the display and the PLC controller are electrically connected to the output terminals of the liquid level sensor and the water temperature detector. The output terminal of the PLC controller is electrically connected to the input terminals of the audible and visual alarm, the cooler, the solenoid valve, and the pump.

[0010] Preferably, a battery box is fixedly connected to the top of the placement platform, and a storage battery is fixedly connected to the inner cavity of the battery box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by installing heat exchange coils in the cooling tank of the furnace body and using a pump to circulate the coolant in the tank within the heat exchange coils, can quickly remove heat from the furnace body and achieve rapid cooling. A water temperature detector can monitor the temperature of the coolant in the tank in real time, a liquid level sensor can monitor the coolant level, and a PLC controller can receive this data and precisely control the operation of the cooler and the pump based on this data. This achieves precise temperature control of the furnace cooling process, avoiding quality problems such as workpiece deformation and cracking caused by improper temperature control, and improving the product qualification rate and quality stability.

[0012] 2. This utility model uses a hydrochloric acid solution storage tank to store hydrochloric acid solution. When it is necessary to clean the scale inside the heat exchange coil after a period of use, the solenoid valve is opened to allow the hydrochloric acid solution to enter the water tank, so that the hydrochloric acid solution can circulate into the heat exchange coil to clean the scale inside the heat exchange coil. After cleaning, the drain outlet is opened to drain all the wastewater, and then new water is injected. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main sectional view of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the left side of this utility model.

[0014] In the diagram: 1. Base plate; 2. Box body; 3. Drain outlet; 4. Display; 5. Fixing block; 6. Audible and visual alarm; 7. Bolt; 8. Placement platform; 9. Furnace body; 10. Battery box; 11. PLC controller; 12. Cooling tank; 13. Heat exchange coil; 14. Battery; 15. Water tank; 16. Refrigeration tank; 17. Refrigerator; 18. Water temperature detector; 19. Liquid level sensor; 20. Hydrochloric acid solution storage tank; 21. Short pipe; 22. Solenoid valve; 23. Pump. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0017] Please see Figure 1-3 As shown, this utility model provides a vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling, including a base plate 1. A placement platform 8 is fixedly connected to the top of the base plate 1 via a bracket. A furnace body 9 is mounted on the top of the placement platform 8 via a bracket. A cooling groove 12 is formed in the inner cavity of the furnace body 9, and a heat exchange coil 13 is installed inside the cooling groove 12. A box body 2 is fixedly connected to the top of the base plate 1 via a bracket. A water tank 15 is formed in the inner cavity of the box body 2. A liquid level sensor 19 is fixedly connected to the top of the inner cavity of the water tank 15, and water is fixedly connected to the bottom of the inner cavity of the water tank 15. A temperature detector 18 is installed. A pump 23 is fixedly connected to the rear end of the inner cavity of the water tank 15. The outlet of the pump 23 is fixedly connected to the inlet of the heat exchange coil 13 through a pipe. The outlet of the heat exchange coil 13 is fixedly connected to the top of the inner cavity of the water tank 15 through a pipe. A refrigeration tank 16 is opened in the lower part of the inner cavity of the box 2. A cooler 17 is fixedly connected to the bottom of the inner cavity of the refrigeration tank 16. An audible and visual alarm 6 is fixedly connected to the left end of the top of the placement platform 8. The heat dissipation surface of the cooler 17 extends to the lower end of the bottom of the box 2. A radiator is installed on the heat dissipation surface of the cooler 17.

[0018] This technical solution involves installing a heat exchange coil 13 in the cooling tank 12 inside the furnace body 9, and using a pump 23 to circulate the coolant in the water tank 15 within the heat exchange coil 13. This allows for rapid heat removal from the furnace body 9, achieving rapid cooling. A water temperature detector 18 monitors the temperature of the coolant in the water tank 15 in real time, and a liquid level sensor 19 monitors the coolant level. A PLC controller 11 receives these data and, based on this data, precisely controls the operation of the cooler 17 and the pump 23. This achieves precise temperature control of the furnace body 9 cooling process, avoiding quality problems such as workpiece deformation and cracking caused by improper temperature control, and improving product qualification rate and quality stability. Example

[0019] Based on Embodiment 1, this utility model is as follows: Figure 1-3 As shown, a hydrochloric acid solution storage tank 20 is fixedly connected to the rear end of the top of the placement platform 8. A short pipe 21 is fixedly connected to the bottom of the hydrochloric acid solution storage tank 20. The bottom of the short pipe 21 is fixedly connected to the top of the inner cavity of the water tank 15. A solenoid valve 22 is fixedly connected to the inner cavity of the short pipe 21. A drain outlet 3 is provided at the lower part of the front of the water tank 15. A valve is installed in the inner cavity of the drain outlet 3. A water inlet is provided at the top of the water tank 15. Fixing blocks 5 are fixedly connected to the front and rear ends of both sides of the bottom plate 1. The fixing blocks 5 are equipped with... Bolt 7 is used to fix a display 4 to the left end of the front of the housing 2. PLC controller 11 is fixedly connected to the right end of the front of the housing 2. The input terminals of the display 4 and PLC controller 11 are electrically connected to the output terminals of the liquid level sensor 19 and the water temperature detector 18. The output terminal of PLC controller 11 is electrically connected to the input terminals of the audible and visual alarm 6, the cooler 17, the solenoid valve 22 and the pump 23. A battery box 10 is fixedly connected to the top of the placement platform 8. A storage battery 14 is fixedly connected to the inner cavity of the battery box 10.

[0020] This technical solution uses a hydrochloric acid solution storage tank 20 to store hydrochloric acid solution. When it is necessary to clean the scale inside the heat exchange coil 13 after a period of use, the solenoid valve 22 is opened to allow the hydrochloric acid solution to enter the water tank 15, so that the hydrochloric acid solution can circulate into the heat exchange coil 13 to clean the scale inside the heat exchange coil 13. After cleaning, the drain outlet 3 is opened to drain all the wastewater, and then new water is injected.

[0021] The working principle of this utility model is as follows: By setting a heat exchange coil 13 in the cooling tank 12 inside the furnace body 9, and using a pump 23, the coolant in the water tank 15 circulates in the heat exchange coil 13, which can quickly remove the heat inside the furnace body 9 and achieve rapid cooling. The temperature of the coolant in the water tank 15 can be monitored in real time using a water temperature detector 18, and the water level of the coolant can be monitored using a liquid level sensor 19. The PLC controller 11 can receive these data and, based on these data, precisely control the operation of the cooler 17 and the pump 23, thereby achieving rapid cooling of the furnace body. 9. Precise temperature control during the cooling process avoids quality problems such as workpiece deformation and cracking caused by improper temperature control, improving the product qualification rate and quality stability. The hydrochloric acid solution storage tank 20 can store hydrochloric acid solution. When it is necessary to clean the scale in the heat exchange coil 13 after a period of use, the solenoid valve 22 is opened to allow the hydrochloric acid solution to enter the water tank 15, so that the hydrochloric acid solution can circulate into the heat exchange coil 13 to clean the scale in the heat exchange coil 13. After cleaning, the drain outlet 3 is opened to drain all the waste water, and then new water is injected.

[0022] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0023] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling, comprising a base plate (1), characterized in that: A placement platform (8) is fixedly connected to the top of the base plate (1) via a bracket. A furnace body (9) is mounted on the top of the placement platform (8) via a bracket. A cooling groove (12) is provided in the inner cavity of the furnace body (9). A heat exchange coil (13) is provided in the inner cavity of the cooling groove (12). A box body (2) is fixedly connected to the top of the base plate (1) via a bracket. A water tank (15) is provided in the inner cavity of the box body (2). A liquid level sensor (19) is fixedly connected to the top of the inner cavity of the water tank (15). A liquid level sensor (19) is fixedly connected to the bottom of the inner cavity of the water tank (15). A water temperature detector (18) is fixedly connected to the water tank (15). A pump (23) is fixedly connected to the rear end of the inner cavity of the water tank (15). The outlet of the pump (23) is fixedly connected to the inlet of the heat exchange coil (13) through a pipe. The outlet of the heat exchange coil (13) is fixedly connected to the top of the inner cavity of the water tank (15) through a pipe. A refrigeration tank (16) is opened in the lower part of the inner cavity of the box (2). A refrigerator (17) is fixedly connected to the bottom of the inner cavity of the refrigeration tank (16). An audible and visual alarm (6) is fixedly connected to the left end of the top of the placement platform (8).

2. The vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: The rear end of the top of the placement platform (8) is fixedly connected to a hydrochloric acid solution storage tank (20), the bottom of the hydrochloric acid solution storage tank (20) is fixedly connected to a short pipe (21), the bottom of the short pipe (21) is fixedly connected to the top of the inner cavity of the water tank (15), and a solenoid valve (22) is fixedly connected to the inner cavity of the short pipe (21).

3. The vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: The heat dissipation surface of the cooler (17) extends to the lower end of the bottom of the box (2), and the heat dissipation surface of the cooler (17) is provided with a radiator.

4. The vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: The lower part of the front of the water tank (15) is provided with a drain outlet (3), the inner cavity of the drain outlet (3) is equipped with a valve, and the top of the water tank (15) is provided with a water inlet.

5. A vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: The base plate (1) has fixed blocks (5) at both the front and rear ends on both sides, and bolts (7) are provided on the fixed blocks (5).

6. The vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: A display (4) is fixedly connected to the left end of the front of the housing (2), and a PLC controller (11) is fixedly connected to the right end of the front of the housing (2). The input terminals of the display (4) and the PLC controller (11) are electrically connected to the output terminals of the liquid level sensor (19) and the water temperature detector (18). The output terminal of the PLC controller (11) is electrically connected to the input terminals of the audible and visual alarm (6), the cooler (17), the solenoid valve (22), and the pump (23).

7. A vacuum low-pressure carburizing oil quenching furnace capable of rapid cooling according to claim 1, characterized in that: A battery box (10) is fixedly connected to the top of the placement platform (8), and a storage battery (14) is fixedly connected to the inner cavity of the battery box (10).

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