Water feeding and discharging pressure control mechanism for water cooling jacket of kiln

Abstract

The utility model relates to the technical field of kiln water cooling pressure, in particular to a water feeding and discharging pressure control mechanism of a kiln water cooling jacket, which comprises a cooling inner container, a cooling water jacket, a water collecting tank and a water pump. A cooling flow channel is formed between the cooling liner and the cooling water jacket; a water inlet and a water outlet which are communicated with the cooling flow channel are formed in the cooling water jacket; a pressure reducing valve is arranged at the water inlet to control the water inlet pressure in the cooling water jacket and prevent the cooling water jacket from deforming due to overhigh water inlet pressure; a water collecting tank is arranged at the water outlet and used for collecting cooling water naturally flowing out of the water outlet due to gravity in the cooling flow channel; the water pump is connected with the water collecting tank and discharges cooling water collected in the water collecting tank. A traditional pressure drainage mode is omitted, water in the cooling flow channel can be naturally drained into the water collection tank by means of gravity all the time through the water collection tank, then the water in the water collection tank is pumped out through the water pump, and therefore it can be guaranteed that the cooling water jacket is in a low-pressure state, and the water can be conveyed into a plant drainage main pipe in a high-pressure mode through the water pump.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln water cooling pressure control, in particular to a water inlet and outlet pressure control mechanism for a kiln water cooling jacket. Background Art

[0002] In the cooling section of an industrial kiln, in some cases, according to the cooling process of the product, a sandwich layer (referred to as a "water jacket") is designed around the furnace chamber, and cooling water is introduced to cool the furnace chamber. However, the water pressure of the cooling water source provided by the customer may fluctuate greatly, resulting in too high water pressure. After exceeding a certain pressure, the water jacket will bulge, deform, or even crack and leak, causing the equipment to be unable to be used normally.

[0003] In some application scenarios, the cooling water needs to be recycled. However, the circulating water systems of a large number of equipment usually adopt the pressure return water method, which requires sufficient pressure at the water inlet of the water jacket to return water normally, resulting in a consistently high pressure inside the water jacket. The water jacket is prone to deformation and leakage, making the equipment unusable.

[0004] Therefore, the utility model has developed a water inlet and outlet pressure control mechanism for a kiln water cooling jacket to solve the problems existing in the prior art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a water inlet and outlet pressure control mechanism for a kiln water cooling jacket to solve the problem that the pressure inside the cooling water jacket in the prior art is too high, making the water jacket prone to deformation, damage, and leakage.

[0006] The technical solution of the utility model is: a water inlet and outlet pressure control mechanism for a kiln water cooling jacket, comprising:

[0007] A cooling inner tank and a cooling water jacket, a cooling flow channel is formed between the cooling inner tank and the cooling water jacket; an inlet and a drain are provided on the cooling water jacket and are communicated with the cooling flow channel; a pressure reducing valve is provided at the inlet, and a collecting tank is provided at the drain.

[0008] The collecting tank is arranged below the cooling water jacket to collect the cooling water that naturally flows out of the drain due to gravity in the cooling flow channel.

[0009] A water pump is connected to the collecting tank to discharge the cooling water collected in the collecting tank.

[0010] Preferably, the cooling inner tank and the cooling water jacket adopt a multi-section structure design, and an inlet and a drain are provided on each section of the cooling water jacket; the cooling water flowing out of each drain converges to the collecting tank through a main drain pipe.

[0011] Preferably, adjacent cooling inner liners are fixedly connected through flange plates. An accommodation space is formed between adjacent cooling water jackets for accommodating the flange plates, and a thermocouple joint is provided on the corresponding cooling inner liner of the accommodation space.

[0012] Preferably, a baffle for increasing the residence time of cooling water is arranged in the cooling flow channel.

[0013] Preferably, a cover plate is arranged on the top of the water collection tank, and an interface is fixed on the cover plate and communicated with the main drain pipe.

[0014] Preferably, a water level switch is installed on the cover plate. The detection end of the water level switch is inside the water collection tank, and a water level switch protection pipe is sleeved outside the detection end; the display end of the water level switch is exposed outside the water collection tank.

[0015] Preferably, the water level switch adopts a float type water level switch.

[0016] Preferably, a first external drainage pipeline is arranged at the bottom of the water collection tank. The first external drainage pipeline is connected to the inlet end of the water pump, and a manual valve is also installed on the first external drainage pipeline;

[0017] The outlet end of the water pump is connected to a second external drainage pipeline, and a manual valve and / or a one-way valve are installed on the second external drainage pipeline.

[0018] Compared with the prior art, the advantages of the present utility model are as follows:

[0019] A pressure reducing valve is added at the water inlet of the present utility model to control the water inlet pressure in the cooling water jacket and prevent the cooling water jacket from deforming due to excessive water inlet pressure; the traditional pressure drainage method is cancelled, and a water collection tank is added at the drainage port, so that the water in the cooling flow channel can always be naturally discharged into the water collection tank by gravity. Then, a water pump is used to pump out the water in the water collection tank, which can not only ensure that the cooling water jacket is in a low-pressure state, but also convey the cooling water to the plant drainage main pipe in a high-pressure form through the water pump. Description of the Drawings

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0021] Figure 1 is a schematic diagram of a water cooling jacket inlet and outlet pressure control mechanism for a kiln furnace according to the present utility model;

[0022] Figure 2 is a partial front view of the cooling inner liner and the cooling water jacket according to the present utility model;

[0023] Figure 3 is a partial top view of the cooling inner liner and the cooling water jacket according to the present utility model;

[0024] Figure 4 Schematic diagram of the water collecting tank and water pump of the present utility model.

[0025] Wherein: 1. Cooling inner tank;

[0026] 11. Cooling flow channel, 12. Water inlet, 121. Pressure reducing valve, 13. Drain outlet, 131. Main drain pipe, 14. Flange, 15. Thermocouple joint;

[0027] 2. Cooling water jacket;

[0028] 21. Accommodating space;

[0029] 3. Water collecting tank;

[0030] 30. Cover plate, 31. Interface, 32. Float type water level switch, 33. Water level switch protection tube, 34. First external drainage pipeline;

[0031] 4. Water pump;

[0032] 41. Second external drainage pipeline. Specific embodiments

[0033] The following combines specific embodiments to further elaborate on the content of the present utility model:

[0034] As Figure 1 shown, a pressure control mechanism for the inlet and outlet water of a kiln furnace water cooling jacket includes a cooling inner tank 1, a cooling water jacket 2, a water collecting tank 3 and a water pump 4.

[0035] As Figure 2 . Figure 3 shown, a cooling flow channel 11 is formed between the cooling inner tank 1 and the cooling water jacket 2; a water inlet 12 and a drain outlet 13 communicating with the cooling flow channel 11 are provided on the cooling water jacket 2; cooling water flows in from the water inlet 12, flows through the cooling flow channel 11, and then is discharged from the drain outlet 13. In order to increase the residence time of the cooling water in the cooling flow channel 11, a baffle plate can be provided in the cooling flow channel 11.

[0036] In this embodiment, as Figure 1 shown, the cooling inner tank 1 and the cooling water jacket 2 adopt a multi-section structure design, and a water inlet 12 and a drain outlet 13 are provided on each section of the cooling water jacket 2; as Figure 3 shown, adjacent cooling inner tanks 1 are fixedly connected by a flange 14, and an accommodating space 21 is formed between adjacent cooling water jackets 2. The accommodating space 21 is for the flange 14 to be accommodated, and a thermocouple joint 15 is provided on the corresponding cooling inner tank 1 of the accommodating space 21. The thermocouple joint 15 is used to connect a thermocouple, so as to realize the temperature monitoring in the cooling inner tank 1 and observe the cooling effect in real time.

[0037] A pressure reducing valve 121 is provided at the water inlet 12 to control the water inlet pressure in the cooling water jacket 2 and prevent the cooling water jacket 2 from deforming due to excessive water inlet pressure.

[0038] A water collecting tank 3 is provided at the drain outlet 13. Since there are multiple drain outlets 13, the cooling water flowing out from each drain outlet 13 converges into the water collecting tank 3 through the main drain pipe 131.

[0039] As Figure 1 shown, the water collecting tank 3 is arranged below the cooling water jacket 2 to collect the cooling water that naturally flows out from the drain outlet 13 due to gravity in the cooling flow channel 11. Since the water in the cooling flow channel 11 can always be naturally discharged into the water collecting tank 3 by gravity, this ensures that the cooling water jacket 2 is in a low-pressure state and avoids problems such as deformation, damage, and water leakage of the cooling water jacket 2.

[0040] Regarding the structural design, as Figure 4 shown, a cover plate 30 is provided at the top of the water collecting tank 3, and an interface 31 is fixed on the cover plate 30. The interface 31 is communicated with the main drain pipe 131. A water level switch is installed on the cover plate 30. The detection end of the water level switch is inside the water collecting tank 3, and a water level switch protection tube 33 is also sleeved outside the detection end to prevent the water level switch from deforming and failing due to the impact of water flow. The display end of the water level switch is exposed outside the water collecting tank 3. In this embodiment, a float type water level switch 32 is used as the water level switch.

[0041] A first external discharge pipeline 34 is provided at the bottom of the water collecting tank 3. The first external discharge pipeline 34 is connected to the inlet end of the water pump 4, and a manual valve is also installed on the first external discharge pipeline 34. The outlet end of the water pump 4 is connected to a second external discharge pipeline 41, and a manual valve and / or a check valve are installed on the second external discharge pipeline 41. In an actual application scenario, the second external discharge pipeline 41 is directly communicated with the main drainage pipe in the factory building, so that the cooling water is output in a high-pressure form again.

[0042] During operation, the cooling water flows in from the water inlet 12. After flowing through the cooling flow channel 11, the cooling water is naturally discharged into the water collecting tank 3 by gravity from the drain outlet 13, and the cooling water collected in the water collecting tank 3 is then pumped and discharged by the water pump 4. In terms of structural design, by providing a pressure reducing valve 121 at the water inlet 12, the water inlet pressure in the cooling water jacket 2 can be controlled, avoiding deformation of the cooling water jacket 2 due to high pressure in the first step. By providing the water collecting tank 3, the cooling water is discharged externally by gravity, ensuring that the inside of the cooling water jacket 2 is in a low-pressure state in the second step and further reducing the possibility of deformation. By providing the water pump 4, the cooling water is transported into the main drainage pipe of the factory building in a high-pressure form, which has a wide range of prospects in actual application.

[0043] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A kiln water cooling jacket inlet and outlet pressure control mechanism, characterized in that: include: A cooling liner (1) and a cooling water jacket (2), wherein a cooling channel (11) is formed between the cooling liner (1) and the cooling water jacket (2); a water inlet (12) and a water outlet (13) in communication with the cooling channel (11) are provided on the cooling water jacket (2); a pressure reducing valve (121) is provided at the water inlet (12), and a water collecting tank (3) is provided at the water outlet (13); The water collecting tank (3) is arranged below the cooling water jacket (2) and collects cooling water naturally flowing out of the cooling channel (11) from the drain port (13) due to gravity; A water pump (4) is connected to the water collecting tank (3) and discharges the cooling water collected in the water collecting tank (3).

2. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 1, characterized in that: The cooling liner (1) and the cooling water jacket (2) adopt a multi-stage structural design, and each stage of the cooling water jacket (2) is provided with a water inlet (12) and a water outlet (13); the cooling water flowing out of each water outlet (13) is converged into the water collecting tank (3) through a main water outlet pipe (131).

3. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 2, characterized in that: Adjacent cooling liner (1) are fixedly connected via flanges (14), and an accommodation space (21) is formed between adjacent cooling water jackets (2). The accommodation space (21) is used to accommodate the flanges (14), and a thermocouple joint (15) is provided on the cooling liner (1) corresponding to the accommodation space (21).

4. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 2, characterized in that: A baffle plate for increasing the residence time of cooling water is arranged in the cooling channel (11).

5. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 2, characterized in that: A cover plate (30) is provided on the top of the water collecting tank (3), an interface (31) is fixed on the cover plate (30), and the interface (31) is connected to the main drainage pipe.

6. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 5, characterized in that: A water level switch is installed on the cover plate (30), a detection end of the water level switch is located in the water collecting tank (3), and a water level switch protective tube (33) is sleeved on the outside of the detection end; and a display end of the water level switch is exposed outside the water collecting tank (3).

7. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 6, characterized in that: The water level switch is a float type water level switch (32).

8. A kiln water cooling jacket inlet and outlet pressure control mechanism according to claim 5, characterized in that: A first external discharge pipeline (34) is provided at the bottom of the water collecting tank (3), the first external discharge pipeline (34) is connected to the inlet end of the water pump (4), and a manual valve is also installed on the first external discharge pipeline (34); The outlet end of the water pump (4) is connected to a second external discharge pipeline (41), and a manual valve and / or a one-way valve is installed on the second external discharge pipeline (41).

Images