CN101694219A - Low-temperature pumping tank - Google Patents
Low-temperature pumping tank Download PDFInfo
- Publication number
- CN101694219A CN101694219A CN200910035617A CN200910035617A CN101694219A CN 101694219 A CN101694219 A CN 101694219A CN 200910035617 A CN200910035617 A CN 200910035617A CN 200910035617 A CN200910035617 A CN 200910035617A CN 101694219 A CN101694219 A CN 101694219A
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- pump
- pond
- drain pipe
- pumping tank
- pump pond
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Abstract
The invention discloses a low-temperature pumping tank comprising a pumping tank body, a liquid inlet pipe arranged on the pumping tank body, a pumping tank cover fixed on the top of the pumping tank body and a liquid output pipe arranged on the pumping tank cover, wherein a heat-insulating layer is wrapped outside the liquid outlet pipe; a heat-isolating layer is fixed below the pumping tank cover; the liquid outlet pipe extends to the inside of the pumping tank body after penetrating through the pumping tank cover and the heat-isolating layer; and an outlet flange is fixed at the bottom of the liquid outlet pipe. The low-temperature pumping tank is provided with a low-temperature pump.
Description
Technical field
The invention belongs to the low-temperature pressure container technical field, refer more particularly to cryopump pool technology field.
Background technique
Be used to transmit the impossible thermal insulation of centrifugal pump of cryogenic liquide itself, be in low-temperature condition when moving for guaranteeing cryopump, conventional way is that cryopump is installed in the pressurized container of a thermal insulation, and this pressurized container is commonly called as the cryopump pond.As shown in Figure 2, traditional cryopump pond comprises pump pond body 1, be installed on the liquid inlet pipe 2 on the pump pond body 1, be fixed in the pump pond lid 3 at body 1 top, pump pond, on the pump pond lid 3 through hole 4 is arranged, through hole 4 tops of pump pond lid 3 are equipped with upper flange 5, through hole 4 belows of pump pond lid 3 are equipped with lower flange 6, the upper flange hole, the lower flange hole is connected with the through hole 4 of pump pond lid 3, drain pipe 7 is fixed in the top of pump pond lid 3 by upper flange 5, the external packets of drain pipe is wrapped with heat insulation layer 8, cryogenic liquid pump is hung on the below of pump pond lid 3 by lower flange 6, the through hole 4 that cryogenic liquide covers 3 middle parts through the pump pond enters drain pipe 7 and flows out then, the deficiency of its existence is that pump pond lid 3 directly contacts with the gas phase of cryogenic liquide, there is direct transmission of heat, the top of pump pond body 1 can not be adiabatic, when cryogenic liquide is flowed through the through hole 4 of pump pond lid 3, a large amount of heats can be delivered to the cryogenic liquide the inside, cause the cryogenic liquide saturation pressure to rise, evaporation loss strengthens, simultaneously, a large amount of frostings can appear in pump pond lid 3, can make the cryopump can not normal starting when serious.
Summary of the invention
Technical problem to be solved by this invention is: a kind of cryopump pond that does not exist pump Chi Gai to leak heat problem will be provided.
For addressing the above problem, the technical solution used in the present invention is: a kind of cryopump pond, comprise pump pond body, be installed on liquid inlet pipe on the body of pump pond, be fixed in body top, pump pond pump Chi Gai, be installed on the drain pipe that the pump pond covers, lid below, described pump pond is fixed with thermal-protective coating, drain pipe penetrates pump Chi Gai and thermal-protective coating, stretch into body inside, pump pond, the bottom of drain pipe is fixed with outlet(discharge) flange, and described drain pipe external packets is wrapped with heat insulation layer.
Described thermal-protective coating is the polyethylene thermal insulating material.
Described drain pipe and pump Chi Gai welding are fixing.
The invention has the beneficial effects as follows: a kind of cryopump of the present invention pond, the drain pipe that external packets is wrapped with heat insulation layer directly penetrates pump Chi Gai, stretch into body inside, pump pond, cryogenic liquide directly flows out through the drain pipe that runs through pump Chi Gai, fundamentally having completely cut off cryogenic liquide contacts and heat exchange with the direct of pump Chi Gai, because low, the anti-water vapor permeable ability of polyethylene thermal insulating material thermal conductivity is strong, insulation effect good, effectively completely cut off cryogenic liquide and pump pond lid lower surface and contacted, thereby reduced the leakage heat problem of pump Chi Gai.
Description of drawings
Fig. 1 is the structural representation in a kind of cryopump of the present invention pond;
Fig. 2 is the structural representation in the cryopump pond described in the background technique.
Among Fig. 1: 1, pump pond body, 2, liquid inlet pipe, 3, pump Chi Gai, 4, drain pipe, 5, outlet(discharge) flange, 6, the polyethylene thermal insulating material, 7, heat insulation layer.
Among Fig. 2: 1, pump pond body, 2, liquid inlet pipe, 3, pump Chi Gai, 4, through hole, 5, upper flange, 6, lower flange, 7, drain pipe, 8, heat insulation layer.
Embodiment
Below in conjunction with accompanying drawing, the structure in a kind of cryopump of the present invention pond is described in further detail.
As shown in Figure 1, a kind of cryopump pond, comprise pump pond body 1, be installed on liquid inlet pipe 2 on the pump pond body 1, by screw bolt and nut be fixed in body 1 top, pump pond pump pond lid 3, be fixedly welded on the drain pipe 4 on the pump pond lid 3, the below of pump Chi Gai is fixed with polyethylene thermal insulating material 6, the drain pipe 4 that external packets is wrapped with heat insulation layer 7 penetrates pump pond lid 3 and polyethylene thermal insulating material 6, stretch into body 1 inside, pump pond, the bottom of drain pipe 4 is fixed with outlet(discharge) flange 5, and cryogenic liquid pump is hung on the drain pipe 4 that stretches into body 1 inside, pump pond by outlet(discharge) flange 5.
From the above, the beneficial effect in a kind of cryopump of the present invention pond is: the drain pipe 4 that external packets is wrapped with heat insulation layer 7 directly penetrates pump pond lid 3 and polyethylene thermal insulating material 6, stretch into the inside of pump pond body 1, cryogenic liquide directly flows out by drain pipe 4 when cryopump comes out, fundamentally completely cut off direct contact and heat exchange of cryogenic liquide with pump pond lid 3, because low, the anti-water vapor permeable ability of thermal conductivity of polyethylene thermal insulating material 6 is strong, insulation effect good, completely cut off cryogenic liquide effectively and covered 3 lower surfaces with the pump pond and contact, thereby reduced the leakage heat problem of pump pond lid 3.
Claims (3)
1. cryopump pond, comprise pump pond body, be installed on liquid inlet pipe on the body of pump pond, be fixed in body top, pump pond pump Chi Gai, be installed on the drain pipe that the pump pond covers, the drain pipe external packets is wrapped with heat insulation layer, it is characterized in that: lid below, described pump pond is fixed with thermal-protective coating, drain pipe penetrates pump Chi Gai and thermal-protective coating, stretch into body inside, pump pond, the bottom of drain pipe is fixed with outlet(discharge) flange.
2. cryopump according to claim 1 pond is characterized in that described thermal-protective coating is the polyethylene thermal insulating material.
3. cryopump according to claim 1 and 2 pond is characterized in that described drain pipe and pump Chi Gai welding is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035617A CN101694219A (en) | 2009-09-28 | 2009-09-28 | Low-temperature pumping tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035617A CN101694219A (en) | 2009-09-28 | 2009-09-28 | Low-temperature pumping tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101694219A true CN101694219A (en) | 2010-04-14 |
Family
ID=42093207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910035617A Pending CN101694219A (en) | 2009-09-28 | 2009-09-28 | Low-temperature pumping tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101694219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821732A (en) * | 2014-02-24 | 2014-05-28 | 中国海洋石油总公司 | Vertical pump pool multi-stage immersed pump |
| EP3739210A1 (en) * | 2019-05-16 | 2020-11-18 | Cryostar SAS | Apparatus for pumping cryogenic fluids |
-
2009
- 2009-09-28 CN CN200910035617A patent/CN101694219A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821732A (en) * | 2014-02-24 | 2014-05-28 | 中国海洋石油总公司 | Vertical pump pool multi-stage immersed pump |
| EP3739210A1 (en) * | 2019-05-16 | 2020-11-18 | Cryostar SAS | Apparatus for pumping cryogenic fluids |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100414 |