Heat preservation type valve

Abstract

The utility model discloses a heat preservation type valve which comprises a valve outer shell, two first heat preservation shells, a second heat preservation shell and a communicating pipe, the two first heat preservation shells are fixedly arranged at the two ends of the valve outer shell in a sleeved mode respectively, the first heat preservation shells are provided with first cavities, and the second heat preservation shell is fixedly arranged in the middle of the valve outer shell in a sleeved mode. The second heat preservation shell is provided with a second cavity. The first cavity and the second cavity are communicated through the communicating pipe, a heat preservation structure of the valve shell is formed through the arrangement of the first cavity, the second cavity and the communicating pipe, and then the first heat preservation shells are installed at the two ends of the valve shell correspondingly, so that steam is also arranged at the joint of the valve shell and an external pipeline for heat preservation; and the heat preservation effect of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve heat preservation, in particular to a heat preservation type valve. Background Art

[0002] In the chemical industry, various chemical equipment are connected through pipelines, and the pipelines are controlled by valves. When the temperature of the process medium in the pipeline is greater than 40°C, the pipeline and valve need to be insulated. For example, the authorization announcement number CN221880430U is a utility model patent for an insulated electric regulating valve, which includes a valve body, an insulation shell with a cavity inside, a water tank, an air duct, an exhaust pipe, a heating device and a stirring device. The heating device heats the liquid water in the water tank, and the stirring device stirs the liquid water, which can quickly form water vapor from the liquid water in the water tank. The water vapor enters the cavity inside the insulation shell through the air duct and flows in the cavity, thereby achieving an insulation effect on the valve body.

[0003] However, there is no water vapor insulation at the connection between the valve body and the pipeline, so the temperature at the interface will be lower than other parts (more obvious in winter), and the temperature of the process medium will be affected when passing through the connection, resulting in poor insulation effect. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose an insulation type valve to solve the technical problem in the prior art that there is no insulation structure at the connection between the valve body and the pipeline, the temperature of the process medium will be affected when passing through the connection, and thus the insulation effect is poor.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides an insulation type valve, including a valve shell, a first insulation shell, a second insulation shell and a connecting pipe, wherein two first insulation shells are provided, and the two first insulation shells are fixedly sleeved on the two ends of the valve shell respectively, the first insulation shell is provided with a first cavity, the second insulation shell is fixedly sleeved on the middle part of the valve shell, and the second insulation shell is provided with a second cavity; and the connecting pipe connects the first cavity and the second cavity.

[0007] In some embodiments, the first heat-insulating shell is provided with a first inlet and a first outlet, and the first inlet and the first outlet are arranged opposite to each other.

[0008] In some embodiments, the connecting pipe is an insulation pipe.

[0009] In some embodiments, the first inlet of any one of the first thermal insulation shells and the first outlet of another of the first thermal insulation shells are both equipped with connection nozzles.

[0010] In some embodiments, the second heat-insulating shell is provided with a second inlet and a second outlet, and the second inlet and the second outlet are arranged opposite to each other.

[0011] In some embodiments, the second inlet and the second outlet are both located on the top of the second insulation shell.

[0012] In some embodiments, a heat conducting plate is provided between the first heat-insulating shell, the second heat-insulating shell and the valve housing.

[0013] In some embodiments, outer surfaces of the first insulation shell and the second insulation shell are both wrapped with insulation cotton.

[0014] In some embodiments, the outer diameter of the insulation cotton located on the outer surface of the second insulation shell is smaller than the outer diameter of the end of the valve shell.

[0015] In some embodiments, a width dimension of the first insulation shell is greater than a width dimension of an end portion of the valve housing.

[0016] Compared with the existing technology, the utility model provides an insulation valve, which forms an insulation structure of the valve shell through the arrangement of the first cavity, the second cavity and the connecting pipe, and then the first insulation shell is installed at both ends of the valve shell, so that the connection between the valve shell and the external pipeline is also insulated by steam, which effectively improves the insulation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a heat-insulating valve provided by an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 A top view of

[0019] Figure 3 yes Figure 2 Cross-sectional view of AA;

[0020] Figure 4 yes Figure 2 Cross-sectional view of the BB.

[0021] Explanation of the accompanying drawings: 1. Valve housing; 2. First insulation shell; 21. First cavity; 22. First inlet; 23. First outlet; 24. Connecting nozzle; 3. Second insulation shell; 31. Second cavity; 32. Second inlet; 33. Second outlet; 4. Connecting pipe; 5. Heat conduction plate; 6. Insulation cotton. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] In order to solve the technical problem that there is no insulation structure at the connection between the valve body and the pipeline, the temperature of the process medium will be affected when passing through the connection, thereby resulting in poor insulation effect, the utility model provides an insulation type valve that can improve the insulation effect.

[0024] It should be noted that the thermal insulation valve described in the present invention is used for but not limited to valves, etc. For the convenience of explanation, in the present invention, only an thermal insulation valve applied to a valve is used as an example for explanation. The principle of applying an thermal insulation valve to other types of equipment is essentially the same as that applied to a valve, and will not be described in detail here.

[0025] See also Figure 1 - Figure 4 ,in Figure 1 This is a structural schematic diagram of an insulation valve in one embodiment of the utility model, an insulation valve includes a valve shell 1, a first insulation shell 2, a second insulation shell 3 and a connecting pipe 4, two first insulation shells 2 are provided, and the two first insulation shells 2 are fixedly mounted on both ends of the valve shell 1, the first insulation shell 2 is provided with a first cavity 21, the second insulation shell 3 is fixedly mounted on the middle part of the valve shell 1, and the second insulation shell 3 is provided with a second cavity 31; and, the connecting pipe 4 connects the first cavity 21 and the second cavity 31.

[0026] In this embodiment, the first cavity 21, the second cavity 31 and the connecting pipe 4 are provided to form an insulation structure of the valve housing 1. The first insulation shell 2 is installed at both ends of the valve housing 1, so that the connection between the valve housing 1 and the external pipeline is also insulated by steam, which effectively improves the insulation effect of the device.

[0027] In one embodiment, see Figure 1 - Figure 4 The first heat-insulating shell 2 is provided with a first inlet 22 and a first outlet 23 , and the first inlet 22 and the first outlet 23 are arranged opposite to each other.

[0028] In this embodiment, the first inlet 22 of any first insulation shell 2 is connected to the external steam system, so that the external steam enters the first cavity 21, and the first outlet 23 is used to connect with the second cavity 31; the first inlet 22 of another first insulation shell 2 is connected to the second cavity 31, so that the steam in the second cavity 31 flows in, and the first outlet 23 is connected to the external steam recovery system to realize steam recycling. At the same time, the first inlet 22 and the first outlet 23 are arranged relative to each other, so that the steam stays in the first cavity 21 longer, the temperature is transferred more comprehensively, and the insulation effect is improved.

[0029] In one embodiment, see Figure 1 - Figure 4 , the connecting pipe 4 is an insulation pipe.

[0030] In this embodiment, the temperature of the steam is prevented from decreasing when passing through the connecting pipe 4, thereby ensuring the heat preservation effect of the steam.

[0031] In one embodiment, see Figure 2 The first inlet 22 of any first insulation shell 2 and the first outlet 23 of another first insulation shell 2 are both equipped with a connecting nozzle 24.

[0032] In this embodiment, the connection nozzle 24 is used to facilitate communication with an external steam system.

[0033] In one embodiment, see Figure 1 - Figure 4 The second heat-insulating shell 3 is provided with a second inlet 32 ​​and a second outlet 33 , and the second inlet 32 ​​and the second outlet 33 are arranged opposite to each other.

[0034] In this embodiment, the steam of any first insulation shell 2 flows into the second insulation shell 3 through the second inlet 32, so that the second insulation shell 3 insulates the middle part of the valve shell 1, and then is discharged from the second outlet 33 and enters another first insulation shell 2. The setting of the second inlet 32 ​​and the second outlet 33 makes the first cavity 21 and the second cavity 31 in series. At the same time, the second inlet 32 ​​and the second outlet 33 are relatively set, so that the steam stays in the second cavity 31 for a longer time, thereby improving the insulation effect.

[0035] In one embodiment, see Figure 1 - Figure 4 The second inlet 32 ​​and the second outlet 33 are both located at the top of the second insulation shell 3.

[0036] In this embodiment, due to the obstruction of the valve switch, the top of the second insulation shell 3 cannot be connected. In order to ensure that the steam diffuses more evenly and comprehensively in the second cavity 31, the second inlet 32 ​​and the second outlet 33 are both arranged at the top of the second insulation shell 3.

[0037] In one embodiment, see Figure 3 and Figure 4 A heat conducting plate 5 is provided between the first heat-insulating shell 2 and the second heat-insulating shell 3 and the valve housing 1 .

[0038] In this embodiment, the function of the heat conducting plate 5 is to enable the temperature of the steam to be transferred to the valve housing 1 more quickly, thereby improving the heat preservation effect.

[0039] In one embodiment, see Figure 1 and Figure 2 The outer surfaces of the first insulation shell 2 and the second insulation shell 3 are both wrapped with insulation cotton 6.

[0040] In this embodiment, the thermal insulation cotton 6 is made of flame-retardant material to prevent spontaneous combustion due to excessive temperature and cause a fire. The function of the thermal insulation cotton 6 is to further improve the thermal insulation effect of the first thermal insulation shell 2 and the second thermal insulation shell 3.

[0041] In one embodiment, see Figure 1 The outer diameter of the insulation cotton 6 located on the outer surface of the second insulation shell 3 is smaller than the outer diameter of the end of the valve shell 1.

[0042] In this embodiment, the thermal insulation cotton 6 is prevented from blocking the mounting hole at the end of the valve housing 1, thereby facilitating the connection between the valve housing 1 and the pipeline.

[0043] In one embodiment, see Figure 1 The width of the first insulation shell 2 is greater than the width of the end of the valve shell 1.

[0044] In this embodiment, when the valve housing 1 is connected to the pipeline, the first insulation shell 2 can also wrap the end of the pipeline, thereby improving the insulation effect.

[0045] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0046] First, the external steam is connected to the first cavity 21 in one of the first insulation shells 2 through the connecting nozzle 24, and the steam enters the first cavity 21 from the first inlet 22 to insulate one of the connections between the valve housing 1 and the pipeline, and then is discharged from the first outlet 23; then, under the action of the connecting pipe 4, the steam enters the second cavity 31 in the second insulation shell 3, and the steam enters the second cavity 31 from the second inlet 32 ​​to insulate the middle part of the valve housing 1, and then is discharged from the second outlet 33; finally, under the action of the connecting pipe 4, the steam enters the first cavity 21 in the other first insulation shell 2, and the steam enters the first cavity 21 from the first inlet 22 to insulate the other connection between the valve housing 1 and the pipeline, and then is discharged from the first outlet 23 and enters the external steam recovery system. The steam movement mode during the insulation process of the device (one of the first insulation shells 2 body → the second insulation shell 3 body → the other first insulation shell 2 body) ensures that the middle part of the valve housing 1 and the connection between the valve housing 1 and the external pipeline are insulated by steam, which effectively improves the insulation effect of the device.

[0047] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A heat-insulating valve, characterized in that: include: Valve housing; a first heat-insulating shell, wherein two first heat-insulating shells are provided, and the two first heat-insulating shells are respectively fixedly sleeved on both ends of the valve housing, and the first heat-insulating shells are provided with a first cavity; a second heat-insulating shell, the second heat-insulating shell being fixedly sleeved on the middle portion of the valve housing, the second heat-insulating shell defining a second cavity; and A connecting pipe connects the first cavity and the second cavity.

2. A heat-insulating valve according to claim 1, characterized in that: The first heat-insulating shell is provided with a first inlet and a first outlet, and the first inlet and the first outlet are arranged opposite to each other.

3. The heat-insulating valve according to claim 1, characterized in that: The connecting pipe is a heat-insulating pipe.

4. The heat-insulating valve according to claim 2, characterized in that: The first inlet of any one of the first thermal insulation shells and the first outlet of another of the first thermal insulation shells are both equipped with connection nozzles.

5. The heat-insulating valve according to claim 1, characterized in that: The second heat-insulating shell is provided with a second inlet and a second outlet, and the second inlet and the second outlet are arranged opposite to each other.

6. The heat-insulating valve according to claim 5, characterized in that: The second inlet and the second outlet are both located at the top of the second thermal insulation shell.

7. The heat-insulating valve according to claim 1, characterized in that: A heat conducting plate is provided between the first heat-insulating shell, the second heat-insulating shell and the valve housing.

8. The heat-insulating valve according to claim 1, characterized in that: The outer surfaces of the first heat-insulating shell and the second heat-insulating shell are both wrapped with heat-insulating cotton.

9. The heat-insulating valve according to claim 8, characterized in that: The outer diameter of the thermal insulation cotton located on the outer surface of the second thermal insulation shell is smaller than the outer diameter of the end portion of the valve shell.

10. The heat-insulating valve according to claim 1, characterized in that: The width of the first heat-insulating shell is greater than the width of the end portion of the valve shell.

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