Thermal pipeline system of vulcanizing machine

Abstract

The utility model discloses a thermotechnical pipeline system of a vulcanizing machine, which belongs to the technical field of vulcanizing machines and comprises an internal pressure steam inlet pipeline, a primary hot water inlet pipeline, a secondary hot water inlet pipeline, an internal pressure steam condensate drain pipeline and a secondary hot water return pipeline, a medium enters the capsule through the internal pressure steam inlet pipeline and then is discharged through the internal pressure steam condensate discharging pipeline; a medium enters the capsule through the primary hot water inlet pipeline and the secondary hot water inlet pipeline and then is intensively discharged through the secondary hot water return pipeline; an internal pressure steam circulating pipeline is communicated between the internal pressure steam inlet pipeline and the internal pressure steam condensate discharging pipeline, a primary hot water circulating pipeline is communicated between the primary hot water inlet pipeline and the secondary hot water return pipeline, and a secondary hot water circulating pipeline is communicated between the secondary hot water inlet pipeline and the secondary hot water return pipeline. According to the utility model, condensed water and cooling water formed by cooling can be discharged into the medium return pipeline through the communicated circulating pipeline, so that the normal medium temperature during normal circulation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanizing machines, in particular to a thermal pipeline system of a vulcanizing machine. Background Art

[0002] When the tire vulcanizer vulcanizes the tire, it will perform the steps of high-pressure steam feeding, one-time hot water feeding, two-time hot water feeding or three-time hot water feeding according to the vulcanization process.

[0003] Since the branches of the thermal valve group are connected in parallel, when the medium is introduced into a branch, the other branches are closed, so the internal medium is in a non-flowing state for a long time, which will cause the temperature to drop. When these branches are opened, the cooled medium will first enter the capsule, causing the temperature inside the capsule to drop, affecting the rate of temperature increase inside the capsule, and having an adverse effect on the efficiency and quality of tire vulcanization.

[0004] In view of the above problems existing in the prior art, the present invention designs and manufactures a vulcanizer thermal piping system based on many years of design and use experience in related fields to overcome the above defects. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a vulcanizer thermal pipeline system, which can discharge the condensed water, cooling water and other media formed by cooling due to non-flow in the thermal valve group branch into the medium return pipeline through the connected circulation pipeline in advance before entering the capsule, so as to ensure the normal medium temperature during normal circulation.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a vulcanizer thermal pipeline system, comprising an internal pressure steam inlet pipeline, a primary hot water inlet pipeline and a secondary hot water inlet pipeline arranged in parallel, wherein the internal pressure steam inlet pipeline, the primary hot water inlet pipeline and the secondary hot water inlet pipeline are respectively connected to the capsule;

[0007] It also includes an internal pressure steam condensate discharge pipe and a secondary hot water return pipe arranged in parallel, wherein the internal pressure steam condensate discharge pipe and the secondary hot water return pipe are respectively connected to the capsule;

[0008] After the medium enters the capsule through the internal pressure steam inlet pipe, it is discharged through the internal pressure steam condensate discharge pipe;

[0009] The medium enters the capsule through the primary hot water inlet pipe and the secondary hot water inlet pipe respectively, and then is discharged through the secondary hot water return pipe;

[0010] An internal-pressure steam circulation pipeline is connected between the internal-pressure steam inlet pipeline and the internal-pressure steam condensate discharge pipeline, a primary hot water circulation pipeline is connected between the primary hot water inlet pipeline and the secondary hot water return pipeline, and a secondary hot water circulation pipeline is connected between the secondary hot water inlet pipeline and the secondary hot water return pipeline.

[0011] Preferably, the internal pressure steam inlet pipe, the primary hot water inlet pipe and the secondary hot water inlet pipe are sequentially provided with a ball valve, a filter, a check valve and a cut-off valve along the conveying direction.

[0012] Preferably, the connection position between the internal pressure steam circulation pipeline and the internal pressure steam inlet pipeline is arranged on the internal pressure steam circulation pipeline between the cut-off valve and the check valve;

[0013] The connection position between the primary hot water circulation pipe and the primary hot water inlet pipe is arranged on the primary hot water inlet pipe between the cut-off valve and the check valve;

[0014] The connection position between the secondary hot water circulation pipeline and the secondary hot water inlet pipeline is arranged on the secondary hot water inlet pipeline between the cut-off valve and the check valve.

[0015] Preferably, the internal pressure steam condensate discharge pipe and the secondary hot water return pipe are sequentially provided with a cut-off valve, a check valve and a ball valve along the conveying direction.

[0016] Preferably, the connection position between the internal pressure steam circulation pipeline and the internal pressure steam condensate discharge pipeline is arranged on the internal pressure steam condensate discharge pipeline between the check valve and the ball valve;

[0017] The connection position between the primary hot water circulation pipeline and the secondary hot water return pipeline is arranged on the secondary hot water return pipeline between the check valve and the ball valve;

[0018] The connection position between the secondary hot water circulation pipeline and the secondary hot water return pipeline is arranged on the secondary hot water return pipeline between the check valve and the ball valve.

[0019] Preferably, the internal-pressure steam circulation pipeline, the primary hot water circulation pipeline, and the secondary hot water circulation pipeline are sequentially provided with ball valves, cut-off valves, and throttle valves along the conveying direction.

[0020] Preferably, the shut-off valves on the internal-pressure steam circulation pipeline, the primary hot water circulation pipeline, and the secondary hot water circulation pipeline are all provided with bypass ball valves in parallel.

[0021] Preferably, it also includes a tertiary hot water inlet pipe and a tertiary hot water return pipe, and the tertiary hot water inlet pipe and the tertiary hot water return pipe are both connected to the capsule;

[0022] The medium enters the capsule through the tertiary hot water inlet pipe and is then discharged through the tertiary hot water return pipe;

[0023] A tertiary hot water circulation pipeline is connected between the tertiary hot water inlet pipeline and the tertiary hot water return pipeline.

[0024] Preferably, the tertiary hot water inlet pipeline is provided with a ball valve, a filter, a check valve and a cut-off valve in sequence along the conveying direction;

[0025] The connection position between the tertiary hot water circulation pipeline and the tertiary hot water inlet pipeline is arranged on the tertiary hot water inlet pipeline between the cut-off valve and the check valve;

[0026] The tertiary hot water return pipeline is provided with a cut-off valve, a check valve and a ball valve in sequence along the conveying direction;

[0027] The connection position between the tertiary hot water circulation pipeline and the tertiary hot water return pipeline is arranged on the tertiary hot water return pipeline between the check valve and the ball valve.

[0028] Preferably, the tertiary hot water circulation pipeline is provided with a ball valve, a cut-off valve and a throttle valve in sequence along the conveying direction;

[0029] The cut-off valve on the tertiary hot water circulation pipeline is provided with a bypass ball valve in parallel.

[0030] The utility model is beneficial in that:

[0031] 1. The utility model utilizes the internal pressure steam circulation pipeline, the primary hot water circulation pipeline and the secondary hot water circulation pipeline to discharge the cooling water, condensed water and other media in the internal pressure steam inlet pipeline, the primary hot water inlet pipeline and the secondary hot water inlet pipeline to the greatest extent possible, effectively ensuring the temperature of the medium in the pipeline before entering the capsule, which is helpful to quickly increase the vulcanization temperature and can also save energy.

[0032] 2. The utility model reasonably controls the valves on different pipelines, and the control logic is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a thermal piping system of a vulcanizing machine;

[0034] Figure 2 The figure is a schematic diagram of the installation of a thermal piping system of a vulcanizing machine.

[0035] In the figure: 1-internal pressure steam inlet pipe, 2-primary hot water inlet pipe, 3-secondary hot water inlet pipe, 4-tertiary hot water inlet pipe, 5-internal pressure steam condensate discharge pipe, 6-secondary hot water return pipe, 7-tertiary hot water return pipe, 8-capsule, 9-internal pressure steam circulation pipe, 10-primary hot water circulation pipe, 11-secondary hot water circulation pipe, 12-tertiary hot water circulation pipe, 13-ball valve, 14-filter, 15-check valve, 16-shut-off valve, 17-bypass ball valve, 18-throttle valve. DETAILED DESCRIPTION

[0036] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0037] like Figure 1 , Figure 2 As shown, a vulcanizer thermal pipeline system includes an internal pressure steam inlet pipeline 1, a primary hot water inlet pipeline 2 and a secondary hot water inlet pipeline 3 arranged in parallel, and the internal pressure steam inlet pipeline 1, the primary hot water inlet pipeline 2 and the secondary hot water inlet pipeline 3 are respectively connected to the capsule 8.

[0038] Specifically, one end of the internal-pressure steam inlet pipe 1 is connected to the steam inlet main pipe, and the other end of the internal-pressure steam inlet pipe 1 is connected to the capsule 8, so that high-temperature and high-pressure steam can be transported into the capsule 8; one end of the primary hot water inlet pipe 2 is connected to the primary hot water inlet main pipe, and the other end of the primary hot water inlet pipe 2 is connected to the capsule 8, so that primary hot water can be transported into the capsule 8; one end of the secondary hot water inlet pipe 3 is connected to the secondary hot water inlet main pipe, and the other end of the secondary hot water inlet pipe 3 is connected to the capsule 8, so that secondary hot water can be transported into the capsule 8.

[0039] It also includes an internal pressure steam condensate discharge pipe 5 and a secondary hot water return pipe 6 which are arranged in parallel. The internal pressure steam condensate discharge pipe 5 and the secondary hot water return pipe 6 are connected to the capsule 8 respectively.

[0040] The medium can enter the capsule 8 through the internal pressure steam inlet pipe 1 and then be discharged through the internal pressure steam condensate discharge pipe 5; the medium can enter the capsule 8 through the primary hot water inlet pipe 2 and the secondary hot water inlet pipe 3 respectively and then be discharged through the secondary hot water return pipe 6.

[0041] Specifically, one end of the internal-pressure steam condensate discharge pipe 5 is connected to the pressure-free pipe, and the other end of the internal-pressure steam condensate discharge pipe 5 is connected to the capsule 8. The steam condensate water in the capsule 8 can be discharged into the pressure-free pipe through the internal-pressure steam condensate discharge pipe 5; one end of the secondary hot water return pipe 6 is connected to the secondary hot water return main pipe, and the other end of the secondary hot water return pipe 6 is connected to the capsule 8. The cooling water in the capsule 8 can be discharged into the secondary hot water return main pipe through the secondary hot water return pipe 6.

[0042] An internal-pressure steam circulation pipe 9 is connected between the internal-pressure steam inlet pipe 1 and the internal-pressure steam condensate discharge pipe 5 of the utility model. The condensed water in the internal-pressure steam inlet pipe 1 can be discharged directly through the internal-pressure steam circulation pipe 9 and the internal-pressure steam condensate discharge pipe 5 without passing through the capsule 8; a primary hot water circulation pipe 10 is connected between the primary hot water inlet pipe 2 and the secondary hot water return pipe 6 of the utility model. The cooling water in the primary hot water inlet pipe 2 can be discharged directly through the secondary hot water return pipe 6 through the primary hot water circulation pipe 10 without passing through the capsule 8; a secondary hot water circulation pipe 11 is connected between the secondary hot water inlet pipe 3 and the secondary hot water return pipe 6 of the utility model. The cooling water in the secondary hot water inlet pipe 3 can be discharged directly through the secondary hot water return pipe 6 through the secondary hot water circulation pipe 11 without passing through the capsule 8.

[0043] The utility model utilizes the internal pressure steam circulation pipeline 9, the primary hot water circulation pipeline 10, and the secondary hot water circulation pipeline 11 to discharge cooling water, condensed water and other media in the internal pressure steam inlet pipeline 1, the primary hot water inlet pipeline 2, and the secondary hot water inlet pipeline 3 to the greatest extent possible, effectively ensuring the temperature of the medium in the pipeline before entering the capsule 8, contributing to the rapid increase of the vulcanization temperature, and also saving energy.

[0044] In the utility model, the internal pressure steam inlet pipeline 1, the primary hot water inlet pipeline 2 and the secondary hot water inlet pipeline 3 are sequentially provided with a ball valve 13, a filter 14, a check valve 15 and a cut-off valve 16 along the conveying direction. Each ball valve 13 is installed at the front of the pipeline conveying direction to cut off the steam of the internal pressure steam inlet pipeline 1, the primary hot water of the primary hot water inlet pipeline 2 and the secondary hot water of the secondary hot water inlet pipeline 3. The filter 14 behind the ball valve 13 can filter impurities in the pipeline and protect the valve and capsule 8 behind the filter 14. The check valve 15, as a one-way flow valve, can prevent the medium in the corresponding pipeline from flowing back. The cut-off valve 16, as the on-off switch of the corresponding pipeline, can control the passage and disconnection of the medium.

[0045] Specifically, the connection position between the internal-pressure steam circulation pipe 9 and the internal-pressure steam inlet pipe 1 is set on the internal-pressure steam circulation pipe 9 between the shut-off valve 16 and the check valve 15; the connection position between the primary hot water circulation pipe 10 and the primary hot water inlet pipe 2 is set on the primary hot water inlet pipe 2 between the shut-off valve 16 and the check valve 15; the connection position between the secondary hot water circulation pipe 11 and the secondary hot water inlet pipe 3 is set on the secondary hot water inlet pipe 3 between the shut-off valve 16 and the check valve 15.

[0046] The internal pressure steam condensate discharge pipe 5 and the secondary hot water return pipe 6 are sequentially provided with a shut-off valve 16, a check valve 15 and a ball valve 13 along the conveying direction. The shut-off valve 16 here serves as an on-off switch of the corresponding pipe, and can also control the entry and disconnection of the medium in the corresponding pipe. The check valve 15 serves as a one-way flow valve of the pipe, which can prevent the medium in the corresponding pipe from flowing back into the bladder 8 and affecting the normal vulcanization of the tire, and at the same time provides safety protection for the shut-off valve 16. The ball valve 13 is installed at the very end of the pipe conveying direction to cut off the condensate water of the internal pressure steam condensate discharge pipe 5 and the cooling water of the secondary hot water return pipe 6.

[0047] Specifically, the connection position between the internal-pressure steam circulation pipe 9 and the internal-pressure steam condensate discharge pipe 5 is set on the internal-pressure steam condensate discharge pipe 5 between the check valve 15 and the ball valve 13; the connection position between the primary hot water circulation pipe 10 and the secondary hot water return pipe 6 is set on the secondary hot water return pipe 6 between the check valve 15 and the ball valve 13; the connection position between the secondary hot water circulation pipe 11 and the secondary hot water return pipe 6 is set on the secondary hot water return pipe 6 between the check valve 15 and the ball valve 13.

[0048] The utility model has an internal pressure steam circulation pipeline 9, a primary hot water circulation pipeline 10, and a secondary hot water circulation pipeline 11, which are sequentially provided with a ball valve 13, a cut-off valve 16, and a throttle valve 18 along the conveying direction. The cut-off valves 16 on the internal pressure steam circulation pipeline 9, the primary hot water circulation pipeline 10, and the secondary hot water circulation pipeline 11 are all provided with a bypass ball valve 17 in parallel. The ball valve 13 here is used to cut off the circulation discharge of the condensed water or cooling water on the corresponding pipeline. When the pipeline is abnormal and cannot be normally controlled, the ball valve 13 can be manually closed to cut off the circulation of the medium. The cut-off valve 16 here serves as an on-off switch of the corresponding pipeline, which can control the entry and disconnection of the condensed water or cooling water in the corresponding pipeline. The throttle valve 18 can regulate the flow rate, which can allow the pipeline to circulate the medium slowly and control the flow rate. Secondly, when the adjacent cut-off valve 16 is abnormally damaged, the throttle plate can reduce the reflux of the medium in the corresponding circulation pipeline to avoid affecting the abnormal temperature and pressure in the capsule 8. The bypass ball valve 17 is used as a backup valve on the circulation pipeline. When the cut-off valve 16 is damaged and cannot be normally opened or closed, the bypass ball valve 17 can be manually opened to perform backup circulation of the medium to ensure normal flow of the medium.

[0049] The present embodiment further includes a tertiary hot water inlet pipe 4 and a tertiary hot water return pipe 7, both of which are connected to the capsule 8. Specifically, the tertiary hot water inlet pipe 4 and the tertiary hot water return pipe 7 are set according to the actual vulcanization process requirements of the vulcanizer.

[0050] Similarly, one end of the tertiary hot water inlet pipe 4 is connected to the tertiary hot water inlet main pipe, and the other end of the tertiary hot water inlet pipe 4 is connected to the capsule 8, so that the tertiary hot water can be transported into the capsule 8. After the medium enters the capsule 8 through the tertiary hot water inlet pipe 4, it is discharged through the tertiary hot water return pipe 7. One end of the tertiary hot water return pipe 7 is connected to the tertiary hot water return main pipe, and the other end of the tertiary hot water return pipe 7 is connected to the capsule 8. The cooling water in the capsule 8 can be discharged into the tertiary hot water return main pipe through the tertiary hot water return pipe 7.

[0051] A tertiary hot water circulation pipe 12 is connected between the tertiary hot water inlet pipe 4 and the tertiary hot water return pipe 7 . The cooling water in the tertiary hot water inlet pipe 4 can be discharged directly through the tertiary hot water circulation pipe 12 and the tertiary hot water return pipe 7 without passing through the capsule 8 .

[0052] The tertiary hot water inlet pipe 4 is provided with a ball valve 13, a filter 14, a check valve 15 and a shut-off valve 16 in sequence along the conveying direction, and the connection position between the tertiary hot water circulation pipe 12 and the tertiary hot water inlet pipe 4 is arranged on the tertiary hot water inlet pipe 4 between the shut-off valve 16 and the check valve 15; the tertiary hot water return pipe 7 is provided with a shut-off valve 16, a check valve 15 and a ball valve 13 in sequence along the conveying direction; the connection position between the tertiary hot water circulation pipe 12 and the tertiary hot water return pipe 7 is arranged on the tertiary hot water return pipe 7 between the check valve 15 and the ball valve 13. The tertiary hot water circulation pipe 12 is provided with a ball valve 13, a shut-off valve 16 and a throttle valve 18 in sequence along the conveying direction; the shut-off valve 16 on the tertiary hot water circulation pipe 12 is provided with a bypass ball valve 17 in parallel, and the principle of each valve is the same as that of the valve on the secondary hot water circulation pipe 11.

[0053] Specific control process:

[0054] Before vulcanization, 5 minutes before the internal pressure steam medium is introduced into the capsule 8, the cut-off valve 16 on the internal pressure steam circulation pipeline 9 is opened, and the condensed water of the internal pressure steam inlet pipeline 1 is discharged to the internal pressure steam condensate discharge pipeline 5 through the internal pressure steam circulation pipeline 9, and finally discharged to the pressure-free pipeline. 15 seconds before the internal pressure steam inlet pipeline 1 is filled with steam into the capsule 8, the cut-off valve 16 on the internal pressure steam circulation pipeline 9 is closed, and the steam external circulation is closed.

[0055] When the internal pressure steam starts to flow into the capsule 8, the shut-off valve 16 on the primary hot water circulation pipe 10 is opened, and the cooling water of the primary hot water inlet pipe 2 is discharged to the secondary hot water return pipe 6 through the primary hot water circulation pipe 10. 15 seconds before the primary hot water inlet pipe 2 fills the capsule 8 with hot water, the shut-off valve 16 on the primary hot water circulation pipe 10 is closed, and the primary hot water external circulation is closed.

[0056] When the internal pressure steam enters the capsule 8, the shut-off valve 16 on the secondary hot water circulation pipe 11 opens, and the cooling water of the secondary hot water inlet pipe 3 is discharged to the secondary hot water return pipe 6 through the secondary hot water circulation pipe 11. 15 seconds before the secondary hot water inlet pipe 3 fills the capsule 8 with secondary hot water, the shut-off valve 16 on the secondary hot water circulation pipe 11 is closed, and the secondary hot water external circulation is closed.

[0057] 5 minutes before the tertiary hot water is introduced into the capsule 8, the shut-off valve 16 on the tertiary hot water circulation pipe 12 is opened, and the cooling water of the tertiary hot water inlet pipe 4 is discharged to the tertiary hot water return pipe 7 through the tertiary hot water circulation pipe 12. 15 seconds before the tertiary hot water inlet pipe 4 is filled with tertiary hot water into the capsule 8, the shut-off valve 16 on the tertiary hot water circulation pipe 12 is closed, and the tertiary hot water external circulation is closed.

[0058] Therefore, the cooling water, condensed water and other media in the internal pressure steam inlet pipe 1, the primary hot water inlet pipe 2 and the secondary hot water inlet pipe 3 are discharged by utilizing the internal pressure steam circulation pipe 9, the primary hot water circulation pipe 10 and the secondary hot water circulation pipe 11, thereby effectively ensuring the temperature of the medium in the pipe before entering the capsule 8, contributing to the rapid increase of the vulcanization temperature and also saving energy.

[0059] Of course, the time during which the specific control process of the present invention occurs can be adjusted according to actual conditions.

[0060] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A vulcanizing machine thermal piping system, characterized in that: It comprises an internal pressure steam inlet pipe (1), a primary hot water inlet pipe (2) and a secondary hot water inlet pipe (3) which are arranged in parallel, and the internal pressure steam inlet pipe (1), the primary hot water inlet pipe (2) and the secondary hot water inlet pipe (3) are respectively connected to the capsule (8); It also includes an internal pressure steam condensate discharge pipe (5) and a secondary hot water return pipe (6) arranged in parallel, wherein the internal pressure steam condensate discharge pipe (5) and the secondary hot water return pipe (6) are respectively connected to the capsule (8); After the medium enters the capsule (8) through the internal pressure steam inlet pipe (1), it is discharged through the internal pressure steam condensate discharge pipe (5); The medium enters the capsule (8) through the primary hot water inlet pipe (2) and the secondary hot water inlet pipe (3) respectively, and then is discharged through the secondary hot water return pipe (6); An internal-pressure steam circulation pipeline (9) is connected between the internal-pressure steam inlet pipeline (1) and the internal-pressure steam condensate discharge pipeline (5), a primary hot water circulation pipeline (10) is connected between the primary hot water inlet pipeline (2) and the secondary hot water return pipeline (6), and a secondary hot water circulation pipeline (11) is connected between the secondary hot water inlet pipeline (3) and the secondary hot water return pipeline (6).

2. A vulcanizing machine thermal piping system according to claim 1, characterized in that: The internal pressure steam inlet pipe (1), the primary hot water inlet pipe (2) and the secondary hot water inlet pipe (3) are sequentially provided with a ball valve (13), a filter (14), a check valve (15) and a cut-off valve (16) along the conveying direction.

3. A vulcanizing machine thermal piping system according to claim 2, characterized in that: The connection position between the internal-pressure steam circulation pipeline (9) and the internal-pressure steam inlet pipeline (1) is arranged on the internal-pressure steam circulation pipeline (9) between the cut-off valve (16) and the check valve (15); The connection position between the primary hot water circulation pipeline (10) and the primary hot water inlet pipeline (2) is arranged on the primary hot water inlet pipeline (2) between the cut-off valve (16) and the check valve (15); The connection position between the secondary hot water circulation pipeline (11) and the secondary hot water inlet pipeline (3) is arranged on the secondary hot water inlet pipeline (3) between the cut-off valve (16) and the check valve (15).

4. A vulcanizing machine thermal piping system according to claim 1, characterized in that: The internal pressure steam condensate discharge pipe (5) and the secondary hot water return pipe (6) are sequentially provided with a cut-off valve (16), a check valve (15) and a ball valve (13) along the conveying direction.

5. A vulcanizing machine thermal piping system according to claim 4, characterized in that: The connection position between the internal-pressure steam circulation pipeline (9) and the internal-pressure steam condensate discharge pipeline (5) is arranged on the internal-pressure steam condensate discharge pipeline (5) between the check valve (15) and the ball valve (13); The connection position between the primary hot water circulation pipeline (10) and the secondary hot water return pipeline (6) is arranged on the secondary hot water return pipeline (6) between the check valve (15) and the ball valve (13); The connection position between the secondary hot water circulation pipeline (11) and the secondary hot water return pipeline (6) is arranged on the secondary hot water return pipeline (6) between the check valve (15) and the ball valve (13).

6. A vulcanizing machine thermal piping system according to claim 1, characterized in that: The internal pressure steam circulation pipeline (9), the primary hot water circulation pipeline (10), and the secondary hot water circulation pipeline (11) are sequentially provided with a ball valve (13), a cut-off valve (16), and a throttle valve (18) along the conveying direction.

7. A vulcanizing machine thermal piping system according to claim 6, characterized in that: The cut-off valves (16) on the internal-pressure steam circulation pipeline (9), the primary hot water circulation pipeline (10), and the secondary hot water circulation pipeline (11) are all provided with bypass ball valves (17) in parallel.

8. A vulcanizing machine thermal piping system according to claim 1, characterized in that: It also includes a tertiary hot water inlet pipe (4) and a tertiary hot water return pipe (7), and the tertiary hot water inlet pipe (4) and the tertiary hot water return pipe (7) are both connected to the capsule (8); After the medium enters the capsule (8) through the tertiary hot water inlet pipe (4), it is discharged through the tertiary hot water return pipe (7); A tertiary hot water circulation pipeline (12) is connected between the tertiary hot water inlet pipeline (4) and the tertiary hot water return pipeline (7).

9. A vulcanizing machine thermal piping system according to claim 8, characterized in that: The tertiary hot water inlet pipe (4) is provided with a ball valve (13), a filter (14), a check valve (15) and a cut-off valve (16) in sequence along the conveying direction; The connection position between the tertiary hot water circulation pipeline (12) and the tertiary hot water inlet pipeline (4) is arranged on the tertiary hot water inlet pipeline (4) between the cut-off valve (16) and the check valve (15); The tertiary hot water return pipe (7) is provided with a cut-off valve (16), a check valve (15) and a ball valve (13) in sequence along the conveying direction; The connection position between the tertiary hot water circulation pipeline (12) and the tertiary hot water return pipeline (7) is arranged on the tertiary hot water return pipeline (7) between the check valve (15) and the ball valve (13).

10. A vulcanizing machine thermal piping system according to claim 8, characterized in that: The tertiary hot water circulation pipeline (12) is provided with a ball valve (13), a cut-off valve (16) and a throttle valve (18) in sequence along the conveying direction; A bypass ball valve (17) is provided in parallel with the cut-off valve (16) on the tertiary hot water circulation pipeline (12).

Images