An integrated self-condensing drain device

Abstract

The present invention provides an integrated self-condensing drain device, comprising a shell, a steam pipeline, a condensate pipeline and a drain pipeline, wherein the steam pipeline, the condensate pipeline and the drain pipeline are all arranged inside the shell, the first end of the steam pipeline is connected to the outside of the shell, the second end of the steam pipeline is connected to the first end of the drain pipeline, the second end of the drain pipeline is connected to the first end of the condensate pipeline, the second end of the condensate pipeline is connected to the outside of the shell, a drain valve is arranged on the drain pipeline, and a cooling component is arranged on the condensate pipeline. The present invention is installed at the low point or end where condensate is generated in an existing steam pipe, the steam pipeline is connected to the existing steam pipe, the condensate pipeline is connected to the existing condensate pipe, the condensate generated in the existing steam pipe enters the steam pipeline and flows through the drain valve of the drain pipeline through the condensate pipeline and is discharged into the existing condensate pipe, when the condensate flashes out steam through the drain valve and enters the condensate pipeline, it is condensed into condensate again through the cooling component, which can effectively treat the steam generated by flashing and reduce the occurrence of water hammer.

Description

Technical Field

[0001] The invention relates to a condensation drain structure in a chemical production process, in particular to an integrated self-condensation drain device. Background Art

[0002] In chemical plants, there are multiple steam specifications, such as 9.8Mpa, 4.1Mpa, 2.5Mpa, 1.4Mpa, 0.6Mpa, etc. Each specification of steam may produce condensate. The condensate in the steam pipeline will cause uneven steam heating, loss of steam latent heat, and may corrode equipment and pipelines, and may even cause water hammer, icing, vibration and other phenomena in the steam pipeline. Steam traps can remove steam condensate and non-condensable gases such as air in steam heating equipment or steam pipelines without leaking steam. They are mainly installed in places where condensate may be produced in steam pipelines, including low points of steam, steam heating or heating ends, etc. There is back pressure in all steam traps. For example, the condensate produced after 0.6Mpa steam passes through the steam trap must be lower than 0.6Mpa. Chemical plants conventionally design 0.6Mpa steam to drain into a 0.3Mpa condensate pipe. However, after the condensate enters the 0.3Mpa condensate pipe, the pressure drops and it will inevitably flash. 0.3Mpa steam flashes out of the condensate pipe, causing the condensate pipe to become a steam pipe again. At the same time, it contains a large amount of condensate, which will inevitably cause water hammer. Summary of the invention

[0003] The object of the present invention is to provide an integrated self-condensing drain device, which can effectively condense the steam generated by flash evaporation, thereby reducing the occurrence of water hammer.

[0004] To achieve the above-mentioned purpose, the present invention provides an integrated self-condensing drain device, wherein the integrated self-condensing drain device includes an outer shell, a steam pipeline, a condensate pipeline and a drain pipeline, the steam pipeline, the condensate pipeline and the drain pipeline are all arranged inside the outer shell, the first end of the steam pipeline passes through the outer shell and is connected to the outside of the outer shell, the second end of the steam pipeline is connected to the first end of the drain pipeline, the second end of the drain pipeline is connected to the first end of the condensate pipeline, the second end of the condensate pipeline passes through the outer shell and is connected to the outside of the outer shell, the drain pipeline is provided with a drain valve, and the condensate pipeline is provided with a cooling component.

[0005] As described above, the integrated self-condensing drain device, wherein the cooling assembly includes a cooling water jacket pipe, a water inlet pipe and a water outlet pipe, the cooling water jacket pipe is sleeved on the condensate pipeline, the water inlet pipe is connected to the end of the cooling water jacket pipe close to the first end of the condensate pipeline, and the water outlet pipe is connected to the end of the cooling water jacket pipe close to the second end of the condensate pipeline.

[0006] As described above, the integrated self-condensing drain device, wherein the water inlet pipe is provided with a water inlet valve, the water outlet pipe is provided with a water outlet valve, and the handle of the water inlet valve and the handle of the water outlet valve both penetrate the shell and extend to the outside of the shell.

[0007] As described above, the integrated self-condensing drain device, wherein the steam pipeline is provided with a steam valve, the condensate pipeline is provided with a condensate valve, and the handle of the steam valve and the handle of the condensate valve both penetrate the shell and extend to the outside of the shell.

[0008] As described above, the integrated self-condensing drain device, wherein the steam pipeline is connected to the condensate pipeline via a bypass pipe, the connection position between the bypass pipe and the steam pipeline is located between the first end of the steam pipeline and the steam valve, the connection position between the bypass pipe and the condensate pipeline is located between the second end of the condensate pipeline and the condensate valve, a bypass valve is provided on the bypass pipe, and a handle of the bypass valve passes through the outer shell and extends to the outside of the outer shell.

[0009] The integrated self-condensing drain device as described above, wherein the integrated self-condensing drain device also includes a shower guide pipe, the first end of the shower guide pipe is connected to a position of the steam pipeline near its second end, a position of the drain pipeline near its first end, or a connection between the steam pipeline and the drain pipeline, the second end of the shower guide pipe passes through the outer shell and is connected to the outside of the outer shell, the shower guide pipe is provided with a shower guide valve, and the handle of the shower guide valve passes through the outer shell and extends to the outside of the outer shell.

[0010] The integrated self-condensing drain device as described above, wherein the integrated self-condensing drain device also includes an inspection tube, a first end of the inspection tube is connected to a position of the drain line near its second end, a position of the condensate line near its first end, or a connection between the drain line and the condensate line, a second end of the inspection tube passes through the outer shell and is connected to the outside of the outer shell, a check valve is provided on the inspection tube, and a handle of the check valve passes through the outer shell and extends to the outside of the outer shell.

[0011] As described above, the integrated self-condensing drain device, wherein the shell is a shell made of carbon steel, a shell made of stainless steel or a shell made of galvanized aluminum.

[0012] The integrated self-condensing drain device as described above, wherein the interior of the shell is filled with thermal insulation cotton.

[0013] The integrated self-condensing drain device as described above, wherein a bracket is provided at the bottom and / or the outer side of the shell.

[0014] Compared with the prior art, the advantages of the present invention are as follows:

[0015] The integrated self-condensing drain device provided by the present invention is installed at the low point or end of the existing steam pipe where condensate may be generated, wherein the steam pipeline is connected to the existing steam pipe, and the condensate pipeline is connected to the existing condensate pipe. Once condensate is generated in the existing steam pipe, it enters the steam pipeline and flows through the drain valve of the drain pipeline through the condensate pipeline and is discharged into the existing condensate pipe. When the condensate flashes out steam through the drain valve and enters the condensate pipeline, the steam in the condensate pipeline is condensed into condensate again by the cooling component on the condensate pipeline. In this way, the steam generated by flash evaporation can be effectively treated, thereby reducing the occurrence of water hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 It is a structural schematic diagram of the integrated self-condensing drain device provided by the present invention;

[0018] Figure 2 is another structural schematic diagram of the integrated self-condensing drain device provided by the present invention;

[0019] Figure 3 It is another structural schematic diagram of the integrated self-condensing drain device provided by the present invention;

[0020] Figure 4 It is a schematic diagram of the external structure of the integrated self-condensing drain device provided by the present invention.

[0021] Description of Figure Numbers:

[0022] 1. Shell;

[0023] 11. Thermal insulation cotton;

[0024] 2. Steam pipeline;

[0025] 21. Steam valve;

[0026] 3. Condensate pipeline;

[0027] 31. Condensate valve;

[0028] 4. Drain pipeline;

[0029] 41. Steam trap;

[0030] 5. Cooling components;

[0031] 51. Cooling water jacketed pipe;

[0032] 52. Water inlet pipe;

[0033] 521, water inlet valve;

[0034] 53. Water outlet pipe;

[0035] 531, water outlet valve;

[0036] 6. Bypass pipe;

[0037] 61. Bypass valve;

[0038] 7. Drainage tube;

[0039] 71. Drain valve;

[0040] 8. Check the tube;

[0041] 81. Check valve;

[0042] 9. Bracket;

[0043] 91. Roller. DETAILED DESCRIPTION

[0044] In order to have a clearer understanding of the technical solution, purpose and effect of the present invention, the specific implementation mode of the present invention is now described in conjunction with the accompanying drawings.

[0045] like Figure 1 to Figure 3 As shown, the present invention provides an integrated self-condensing drain device, wherein the integrated self-condensing drain device comprises a shell 1, a steam pipeline 2, a condensate pipeline 3 and a drain pipeline 4, the steam pipeline 2, the condensate pipeline 3 and the drain pipeline 4 are all arranged inside the shell 1, the first end of the steam pipeline 2 passes through the shell 1 and is connected to the outside of the shell 1, the second end of the steam pipeline 2 is connected to the first end of the drain pipeline 4, the second end of the drain pipeline 4 is connected to the first end of the condensate pipeline 3, the second end of the condensate pipeline 3 passes through the shell 1 and is connected to the outside of the shell 1, a drain valve 41 is provided on the drain pipeline 4, and a cooling component 5 is provided on the condensate pipeline 3.

[0046] The integrated self-condensing drain device provided by the present invention is installed at the low point or end of the existing steam pipe where condensate may be generated, wherein the steam pipeline 2 is connected to the existing steam pipe, and the condensate pipeline 3 is connected to the existing condensate pipe. Once condensate is generated in the existing steam pipe, it enters the steam pipeline 2 and flows through the condensate pipeline 3 through the drain valve 41 of the drain pipeline 4 and is discharged into the existing condensate pipe. When the condensate flashes out steam through the drain valve 41 and enters the condensate pipeline 3, the steam in the condensate pipeline 3 is condensed into condensate again by the cooling component 5 on the condensate pipeline 3. In this way, the steam generated by flash evaporation can be effectively treated, thereby reducing the occurrence of water hammer.

[0047] Furthermore, if Figure 1 to Figure 3As shown, the integrated self-condensing drain device provided by the present invention, wherein the cooling component 5 includes a cooling water jacket pipe 51, a water inlet pipe 52 and a water outlet pipe 53, the cooling water jacket pipe 51 is sleeved on the condensate pipeline 3, wherein the cooling water jacket pipe 51 is a sleeve with a double-layer structure and a hollow space between the double-layer structures, and its specific structure is the prior art and is not repeated here, the water inlet pipe 52 is connected with one end of the cooling water jacket pipe 51 (the end close to the first end of the condensate pipeline 3), and the water outlet pipe 53 is connected with the other end of the cooling water jacket pipe 51 (the end close to the second end of the condensate pipeline 3), the cooling water enters the interior of the cooling water jacket pipe 51 from the end of the cooling water jacket pipe 51 close to the first end of the condensate pipeline 3 through the water inlet pipe 52 to cool the condensate pipeline 3, so that the steam in the condensate pipeline 3 is condensed, and the water after cooling the condensate pipeline 3 flows into the water outlet pipe 53 from the end of the cooling water jacket pipe 51 close to the second end of the condensate pipeline 3 and is discharged.

[0048] Among them, by adjusting the length of the cooling water jacket pipe 51 and the thickness of the hollow space between the double-layer structure, multi-specification steam drainage can be effectively achieved.

[0049] As a preference, Figure 1 to Figure 3 As shown, the integrated self-condensing drain device provided by the present invention, wherein a water inlet valve 521 is provided on the water inlet pipe 52, for adjusting the water inlet start and stop and flow rate of cooling water, and a water outlet valve 531 is provided on the water outlet pipe 53, for adjusting the drainage start and stop and flow rate of water after cooling the condensate pipeline 3, and the handle of the water inlet valve 521 and the handle of the water outlet valve 531 both pass through the outer shell 1 and extend to the outside of the outer shell 1, so that the staff can operate them conveniently.

[0050] As a preference, Figure 1 to Figure 3 As shown, the integrated self-condensing drain device provided by the present invention, wherein a steam valve 21 is provided on the steam pipeline 2 to control the flow of condensate entering the steam pipeline 2 from the existing steam pipe, and a condensate valve 31 is provided on the condensate pipeline 3 to control the flow of condensate in the condensate pipeline 3 into the existing condensate pipe, and the handles of the steam valve 21 and the condensate valve 31 both penetrate the outer shell 1 and extend to the outside of the outer shell 1, so that the staff can operate them.

[0051] Furthermore, if Figure 2 and Figure 3As shown, the integrated self-condensing drain device provided by the present invention, wherein the steam pipeline 2 and the condensate pipeline 3 are connected through a bypass pipe 6, the connection position between the bypass pipe 6 and the steam pipeline 2 is located between the first end of the steam pipeline 2 and the steam valve 21, and the connection position between the bypass pipe 6 and the condensate pipeline 3 is located between the second end of the condensate pipeline 3 and the condensate valve 31, and a bypass valve 61 is provided on the bypass pipe 6. When the amount of condensate entering the steam pipeline 2 exceeds the drain capacity of the drain valve 41, the bypass valve 61 can be opened to allow a part of the condensate to directly enter the condensate pipeline 3 through the bypass pipe 6 for discharge, and the handle of the bypass valve 61 passes through the shell 1 and extends to the outside of the shell 1, so that the staff can operate it.

[0052] Furthermore, if Figure 3 As shown, the integrated self-condensing drain device provided by the present invention further includes a shower pipe 7, a first end of the shower pipe 7 is connected to a position of the steam pipeline 2 near its second end, a position of the drain pipeline 4 near its first end, or a connection between the steam pipeline 2 and the drain pipeline 4, that is, the first end of the shower pipe 7 is connected to the steam pipeline 2 or the drain pipeline 4 between the steam valve 21 and the drain valve 41, the second end of the shower pipe 7 passes through the shell 1 and is connected to the outside of the shell 1, a shower valve 71 is provided on the shower pipe 7, when the amount of condensate entering the steam pipeline 2 exceeds the discharge capacity of the condensate pipeline 3, the shower valve 71 can be opened to discharge the condensate on the spot, and the handle of the shower valve 71 passes through the shell 1 and extends to the outside of the shell 1, so that the staff can operate it.

[0053] Furthermore, if Figure 3 As shown, the integrated self-condensing drain device provided by the present invention further includes an inspection pipe 8, a first end of the inspection pipe 8 is connected to a position of the drain line 4 near its second end, a position of the condensate line 3 near its first end, or a connection between the drain line 4 and the condensate line 3, that is, the first end of the inspection pipe 8 is connected to the drain line 4 or the condensate line 3 between the drain valve 41 and the condensate valve 31, the second end of the inspection pipe 8 passes through the shell 1 and is connected to the outside of the shell 1, and a check valve 81 is provided on the inspection pipe 8. To detect whether the drain valve 41 in the present invention is working normally, the check valve 81 can be used. The water inlet valve 521 on the water inlet pipe 52 and the water outlet valve 531 on the water outlet pipe 53 need to be closed first, and then the check valve 81 is opened. If condensate is discharged from the inspection pipe 8, it means that the drain valve 41 is normal. If steam is discharged from the inspection pipe 8, it means that the drain valve 41 is damaged and needs to be replaced. The handle of the inspection valve 81 passes through the shell 1 and extends to the outside of the shell 1 so that the staff can operate it.

[0054] Preferably, the integrated self-condensing drain device provided by the present invention has a shell 1 made of carbon steel, a shell made of stainless steel or a shell made of galvanized aluminum, or the shell 1 may be made of other materials, but the present invention is not limited thereto.

[0055] As a preference, Figure 3 As shown, the integrated self-condensing drain device provided by the present invention has a shell 1 filled with heat-insulating cotton 11 to insulate the various pipelines and valves of the present invention.

[0056] As a preference, Figure 4 As shown, the integrated self-condensing drain device provided by the present invention, wherein a bracket 9 is provided at the bottom and / or the outer side of the outer shell 1 to facilitate the fixation of the present invention; when a bracket 9 is provided at the bottom of the outer shell 1, a roller 91 can also be provided under the bracket 9 to facilitate the movement of the present invention.

[0057] Compared with the prior art, the advantages of the present invention are as follows:

[0058] The integrated self-condensing drain device provided by the present invention is installed at the low point or end of the existing steam pipe where condensate may be generated, wherein the steam pipeline is connected to the existing steam pipe, and the condensate pipeline is connected to the existing condensate pipe. Once condensate is generated in the existing steam pipe, it enters the steam pipeline and flows through the drain valve of the drain pipeline through the condensate pipeline and is discharged into the existing condensate pipe. When the condensate flashes out steam through the drain valve and enters the condensate pipeline, the steam in the condensate pipeline is condensed into condensate again by the cooling component on the condensate pipeline. In this way, the steam generated by flash evaporation can be effectively treated, thereby reducing the occurrence of water hammer.

[0059] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by a person of ordinary skill in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An integrated self-condensing drain device, characterized in that: The integrated self-condensing drain device comprises a shell, a steam pipeline, a condensate pipeline and a drain pipeline, wherein the steam pipeline, the condensate pipeline and the drain pipeline are all arranged inside the shell, the first end of the steam pipeline passes through the shell and is communicated with the outside of the shell, the second end of the steam pipeline is communicated with the first end of the drain pipeline, the second end of the drain pipeline is communicated with the first end of the condensate pipeline, the second end of the condensate pipeline passes through the shell and is communicated with the outside of the shell, a drain valve is arranged on the drain pipeline, and a cooling assembly is arranged on the condensate pipeline; The cooling assembly comprises a cooling water jacket pipe, a water inlet pipe and a water outlet pipe, wherein the cooling water jacket pipe is sleeved on the condensate pipeline, the water inlet pipe is communicated with an end portion of the cooling water jacket pipe close to a first end of the condensate pipeline, and the water outlet pipe is communicated with an end portion of the cooling water jacket pipe close to a second end of the condensate pipeline; The water inlet pipe is provided with a water inlet valve, the water outlet pipe is provided with a water outlet valve, and the handle of the water inlet valve and the handle of the water outlet valve both penetrate the shell and extend to the outside of the shell; The steam pipeline is provided with a steam valve, the condensate pipeline is provided with a condensate valve, and the handle of the steam valve and the handle of the condensate valve both penetrate the shell and extend to the outside of the shell; The steam pipeline is connected to the condensate pipeline through a bypass pipe, the connection position between the bypass pipe and the steam pipeline is located between the first end of the steam pipeline and the steam valve, and the connection position between the bypass pipe and the condensate pipeline is located between the second end of the condensate pipeline and the condensate valve, a bypass valve is provided on the bypass pipe, and a handle of the bypass valve passes through the shell and extends to the outside of the shell; The integrated self-condensing drain device also includes a shower guide pipe, a first end of the shower guide pipe is connected to a position of the steam pipeline near its second end, a position of the drain pipeline near its first end, or a connection between the steam pipeline and the drain pipeline, a second end of the shower guide pipe passes through the shell and is connected to the outside of the shell, a shower guide valve is provided on the shower guide pipe, and a handle of the shower guide valve passes through the shell and extends to the outside of the shell.

2. The integrated self-condensing drain device according to claim 1, characterized in that: The integrated self-condensing drain device also includes an inspection tube, a first end of the inspection tube is connected to a position of the drain line near its second end, a position of the condensate line near its first end, or a connection between the drain line and the condensate line, a second end of the inspection tube passes through the outer shell and is connected to the outside of the outer shell, a check valve is provided on the inspection tube, and a handle of the check valve passes through the outer shell and extends to the outside of the outer shell.

3. The integrated self-condensing drain device according to claim 1, characterized in that: The shell is made of carbon steel, stainless steel or galvanized aluminum.

4. The integrated self-condensing drain device according to claim 1, characterized in that: The interior of the shell is filled with thermal insulation cotton.

5. The integrated self-condensing drain device according to claim 1, characterized in that: A bracket is provided at the bottom and / or the outer side of the shell.

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