A side-outlet cryogenic pump pool

Abstract

A side-discharge cryogenic pump pool, comprising a pump pool body, a pump pool cover and a cryogenic pump, wherein the pump pool body is open at the top, the cryogenic pump is placed in the pump pool body, the pump pool cover is placed on the top of the pump pool body to seal the cryogenic pump in the pump pool body, a plurality of liquid outlets are provided on the side wall of the pump pool body, one of the liquid outlets is connected to the outlet of the cryogenic pump; the cryogenic pump is fixedly connected to the pump pool body. The liquid outlet of the pump pool is provided on the side wall of the pump pool body to avoid the trouble of over-high setting of the liquid outlet pipe, and at the same time, the cryogenic pump is not fixed at the bottom of the pump pool cover, and the cryogenic pump does not need to be lifted out of the pump pool body during maintenance.

Description

Technical Field

[0001] The invention relates to the field of cryogenic pump pools, in particular to a side-outlet liquid cryogenic pump pool. Background Art

[0002] The existing cryogenic pump pool structure includes a pump pool body, a pump pool cover, a cryogenic pump and a liquid outlet pipe; wherein the cryogenic pump is placed in the pump pool body, the pump pool cover is covered on the pump pool body, the liquid outlet pipe is arranged on the pump pool cover, and is vertically arranged on the top of the pump pool cover. The cryogenic pump is fixed to the bottom of the pump pool cover, is located in the pump pool body, and is connected to the liquid outlet pipe.

[0003] In this type of pump pool with an upper liquid outlet structure, the cryogenic pump is fixed on the pump pool cover. During on-site maintenance, the cryogenic pump must be lifted out together with the pump pool cover. After the cryogenic pump is lifted out, the moisture in the outside air will immediately condense on the cryogenic pump, forming snow or ice. When the cryogenic pump is put back into the pump pool, it must be cleaned. At the same time, the pump pool with an upper liquid outlet structure causes the height of the liquid outlet pipe to be too high, which brings great trouble to the maintenance of the pipeline. During maintenance, the staff must climb up, and the maintenance site is slippery, which poses a safety hazard to the staff. Summary of the invention

[0004] The purpose of the present invention is to provide a side-outlet cryogenic pump pool in response to the above-mentioned problems, wherein the liquid outlet of the pump pool is arranged on the side wall of the pump pool body to avoid the liquid outlet pipe being arranged too high and causing trouble for maintenance. At the same time, the cryogenic pump is not fixed to the bottom of the pump pool cover, so that the cryogenic pump does not need to be lifted out of the pump pool body during maintenance.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A side-outlet cryogenic pump pool comprises a pump pool body, a pump pool cover and a cryogenic pump. The top of the pump pool body is open, the cryogenic pump is placed in the pump pool body, the pump pool cover is covered on the top of the pump pool body to seal the cryogenic pump in the pump pool body, and a plurality of liquid outlets are opened on the side wall of the pump pool body, wherein one liquid outlet is connected to the outlet of the cryogenic pump; the cryogenic pump is fixedly connected to the pump pool body.

[0007] Due to the above structure, the liquid outlet is arranged on the side wall of the pump pool body, which avoids the trouble of over-high liquid outlet pipe and reduces the height of the whole equipment. At the same time, the cryogenic pump is fixedly connected to the pump pool body instead of the pump pool cover, so when the pump pool cover is opened, the pump pool cover does not need to be lifted out of the pump pool together, which avoids the cryogenic pump from contacting with the air outside the pump pool body and causing ice and frost.

[0008] Furthermore, the outlet of the cryopump is connected to the liquid outlet via a pump connecting device, and the cryopump is fixedly arranged in the pump pool body via the pump connecting device.

[0009] Furthermore, the pump connecting device includes a curved connecting pipe, one end of the connecting pipe is provided with a liquid outlet connecting flange, and the other end is provided with a pump connecting flange; the liquid outlet connecting flange is connected to the liquid outlet on the side wall of the pump pool body, and the pump connecting flange is connected to the outlet of the low-temperature pump. The connecting pipe is also connected to a pump pool body connecting plate, and the pump pool body connecting plate is connected to the inner wall of the pump pool body.

[0010] Since the liquid outlet is arranged on the side wall of the pump pool body, the liquid outlet and the pump outlet are not on the same straight line, so the liquid outlet can be connected to the cryogenic pump through a curved connecting pipe, and the pump connecting flange and the liquid outlet connecting flange can quickly connect the cryogenic pump and the liquid outlet; when the liquid outlet and the liquid outlet connecting flange are connected, one part of the entire pump connecting device is fixed on the pump pool body; in order to ensure the stability of the connection, the other part of the pump connecting device is fixed on the pump pool body through the pump pool connecting plate. This structure can conveniently fix the cryogenic pump in the pump pool, ensure the stability of the connection, and ensure the connection between the liquid outlet pipe and the cryogenic pump.

[0011] Furthermore, the liquid outlet connecting flange is connected to the pump connecting flange through a flange connecting plate; the flange connecting plate is located below the connecting pipe and fixedly connected to the outer wall of the connecting pipe; the pump connecting device also includes a reinforced connecting plate, which is located above the connecting pipe and fixedly connected to the outer wall of the connecting pipe, the liquid outlet connecting flange and the pump connecting flange; the pump pool body connecting plate is fixedly connected to the reinforced connecting plate.

[0012] Due to the above structure, the outlet connection flange, the pump connection flange and the connection pipe are connected into a whole, which can ensure the structural strength of the entire pump connection device. The strengthening connection plate can further connect the various parts into a whole, further ensuring the structural strength of the entire pump connection device.

[0013] Furthermore, the reinforced connecting plate is arranged vertically; the front end of the reinforced connecting plate is fixedly connected to the liquid outlet connecting flange; the front section of the lower end of the reinforced connecting plate is fixedly connected to the outer wall of the connecting pipe, and the rear section of the lower end is fixedly connected to the pump connecting flange; the pump pool body connecting plate is located at the end of the reinforced connecting plate away from the liquid outlet connecting flange.

[0014] Due to the above structure, the pump pool connecting plate and the liquid outlet connecting flange are respectively located at two ends of the pump connecting device, which can ensure the force balance during connection.

[0015] Furthermore, a hoisting hole is provided at the top of the reinforcing connecting plate, and the hoisting hole is a threaded hole; and an operating hole penetrating the reinforcing connecting plate is provided on the reinforcing connecting plate.

[0016] Due to the existence of the hoisting holes and the operating holes, it is convenient to perform operations such as clamping, hoisting, and fixing through the hoisting holes and the operating holes, which can further facilitate the installation and disassembly of the pump.

[0017] Furthermore, the pump pool cover includes a cover body, a vacuum cylinder and a support member; the top of the vacuum cylinder is open, the support member is arranged in the vacuum cylinder, and the cover body covers the top of the vacuum cylinder to seal the support member in the vacuum cylinder; the top of the support member contacts the bottom of the cover body, and the bottom of the support member contacts the bottom of the vacuum cylinder, which is used to support the cover body and the bottom of the vacuum cylinder; when the pump pool cover is covered on the top of the pump pool body, the vacuum cylinder is placed in the pump pool body.

[0018] Due to the above structure, a vacuum cylinder is arranged on the cover body, and the entire pump pool cover constitutes a pump pool cover with a vacuum structure. When the pump pool cover is covered on the top of the pump pool body, the vacuum cylinder can well isolate the conduction of internal and external temperatures, and prevent the air outside the pump pool cover from freezing or frosting when it is cold. At the same time, since the pressure in the pump pool is very high, in order to prevent the vacuum cylinder from deforming under high pressure, a support is arranged in the vacuum cylinder to prevent the vacuum cylinder from deforming, causing the bottom of the vacuum cylinder to sink into the cylinder.

[0019] Furthermore, a vacuum hole is provided on the cover body, and the vacuum hole is communicated with the inside of the vacuum cylinder; a sealing member is provided at the vacuum hole.

[0020] Due to the above structure, the gas in the vacuum cylinder can be easily extracted through the vacuum hole to ensure that the vacuum cylinder is in a vacuum state and the heat insulation effect is guaranteed; the sealing member is convenient for sealing the vacuum hole after vacuuming.

[0021] Furthermore, the support member includes an outer ring and an inner ring that support the cover body and the bottom of the vacuum cylinder, and the outer ring and the inner ring are connected by a plurality of partitions that are arranged at equal intervals in the circumferential direction.

[0022] Due to the above structure, the support member is made into a hollow structure, which can reduce the contact area between the bottom of the vacuum cylinder and the cover body as much as possible, thereby reducing heat transfer.

[0023] Furthermore, a support plate is provided on the top of the inner ring; and the center of the support plate is penetrated by the top of the inner ring.

[0024] Due to the above structure, the support plate can ensure the stability of the support. At the same time, the center of the support plate is penetrated by the top of the inner ring, which can prevent the vacuum hole from being blocked by the support plate.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] In the present invention, the liquid outlet is arranged on the side wall of the pump pool body, so as to avoid the trouble of over-high arrangement of the liquid outlet pipe for maintenance, and reduce the height of the whole equipment. At the same time, the cryogenic pump is fixedly connected to the pump pool body instead of the pump pool cover, so when the pump pool cover is opened, the pump pool cover does not need to be lifted out of the pump pool together, so as to avoid the cryogenic pump from contacting with the air outside the pump pool body and causing ice and frost.

[0027] The pump connecting device of the present invention can facilitate the rapid installation and disassembly of the cryogenic pump in the pump pool, can stably fix the cryogenic pump in the pump pool, and ensure the connection between the pump and the liquid outlet. The device has a simple structure and is easy to promote and use.

[0028] The pump pool cover of the present invention can effectively prevent the pump pool cover from icing and frosting due to the existence of the vacuum cylinder. At the same time, a support member is arranged inside the vacuum cylinder to prevent the vacuum cylinder from being deformed by the high pressure in the pump pool, thereby ensuring the strength of the pump pool cover structure and the stability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the overall structure diagram of the present invention;

[0030] Figure 2 -5 is a structural diagram of the pump connection device;

[0031] Figure 6 -10 is the structural diagram of the pump pool cover. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] In order to make the purpose, technical solution 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 intended to limit the present invention.

[0034] As shown in Figure 1, the present invention discloses a side-outlet cryogenic pump 3 pool, which includes a pump pool body 4, a pump pool cover 1 and a cryogenic pump 3. The top of the pump pool body 4 is open, and the cryogenic pump 3 is placed in the pump pool body 4. The pump pool cover 1 is covered on the top of the pump pool body 4 to seal the cryogenic pump 3 in the pump pool body 4. A plurality of liquid outlets 5 are opened on the side wall of the pump pool body 4, wherein one liquid outlet 5 is connected to the outlet of the cryogenic pump 3, and the cryogenic pump 3 is fixedly connected to the pump pool body 4.

[0035] The outlet of the cryopump 3 is connected to the liquid outlet 5 via the pump connecting device 2 , and the cryopump 3 is fixedly arranged in the pump pool body 4 via the pump connecting device 2 .

[0036] As shown in 2-5, the pump connecting device 2 includes a curved connecting pipe 202, one end of the connecting pipe 202 is provided with a liquid outlet connecting flange 201, and the other end is provided with a pump connecting flange 207; the liquid outlet connecting flange 201 is connected to the liquid outlet 5 on the side wall of the pump pool body 4, and the pump connecting flange 207 is connected to the outlet of the cryogenic pump 3. The connecting pipe 202 is also connected to a pump pool body connecting plate 205, and the pump pool body connecting plate 205 is connected to the inner wall of the pump pool body 4.

[0037] The liquid outlet connecting flange 201 is connected to the pump connecting flange 207 through the flange connecting plate 208; the flange connecting plate 208 is located below the connecting pipe 202 and is fixedly connected to the outer wall of the connecting pipe 202; the pump connecting device 2 also includes a reinforced connecting plate 203, which is located above the connecting pipe 202 and is fixedly connected to the outer wall of the connecting pipe 202, the liquid outlet connecting flange 201 and the pump connecting flange 207; the pump pool body connecting plate 205 is fixedly connected to the reinforced connecting plate 203.

[0038] The reinforced connecting plate 203 is arranged vertically; the front end of the reinforced connecting plate 203 is fixedly connected to the liquid outlet connecting flange 201; the front section of the lower end of the reinforced connecting plate 203 is fixedly connected to the outer wall of the connecting pipe 202, and the rear section of the lower end is fixedly connected to the pump connecting flange 207; the pump pool body connecting plate 205 is located at the end of the reinforced connecting plate 203 away from the liquid outlet connecting flange 201.

[0039] The pump connection flange 207 and the liquid outlet connection flange 201 are perpendicular to each other, and the pump pool body connection plate 205 is arranged horizontally. The pump pool body connection plate is fan-shaped, and the small end of the fan is fixedly arranged at the top of the reinforcing connection plate 203. The pump pool body connection plate 205 is provided with a plurality of pump pool body connection holes 209, and the pump pool body connection holes 209 are arranged at the circumference of the fan and are arranged at equal intervals along the circumference. Figure 2 As shown, Figure 2 In the middle, two pump pool body connecting holes 209 are provided. In order to facilitate the connection between the pump pool connecting plate and the inner side of the pump pool body 4, a connecting seat can be pre-arranged on the inner wall of the pump pool body 4.

[0040] A hoisting hole 204 is formed at the top of the reinforcing connecting plate 203 , and the hoisting hole 204 is a threaded hole. An operation hole 206 penetrating through the reinforcing connecting plate 203 is formed on the reinforcing connecting plate 203 .

[0041] like Figure 2 , 3 As shown, the hoisting hole 204 is vertically arranged, and the hoisting hole 204 is a threaded hole, which is convenient for quick connection and disassembly with the hoisting rope; the operating hole 206 is "trapezoidal".

[0042] In this embodiment, the connecting pipe 202, the liquid outlet connecting flange 201, the pump connecting flange 207, the flange connecting plate 208, the reinforcing connecting plate 203, and the pump pool body connecting plate 205 are all integrally formed.

[0043] Further, such as Figure 6 As shown in Figure 10, the pump pool cover 1 includes a cover body 101, a vacuum cylinder 104 and a support member; the top of the vacuum cylinder 104 is open, the support member is arranged in the vacuum cylinder 104, and the cover body 101 covers the top of the vacuum cylinder 104 to seal the support member in the vacuum cylinder 104; the top of the support member contacts the bottom of the cover body 101, and the bottom of the support member contacts the bottom of the vacuum cylinder 104, which is used to support the cover body 101 and the bottom of the vacuum cylinder 104; when the pump pool cover 1 covers the top of the pump pool body 4, the vacuum cylinder 104 is placed in the pump pool body 4.

[0044] The cover 101 is provided with a vacuum hole 103, which is connected to the inside of the vacuum cylinder 104; a sealing member 102 is provided at the vacuum hole 103. Figure 7 As shown, the vacuum is located at the center of the cover body 101.

[0045] The support member includes an outer ring 105 and an inner ring 106 supporting the cover 101 and the bottom of the vacuum cylinder 104 . The outer ring 105 and the inner ring 106 are connected via a plurality of partitions 109 arranged at equal intervals in the circumferential direction.

[0046] The shape and size of the support member match the shape and size of the vacuum cylinder 104 .

[0047] A support plate 107 is disposed on the top of the inner ring 106. The center of the support plate 107 is penetrated by the top of the inner ring 106. The central axis of the inner ring 106 coincides with the central axis of the vacuum hole 103, so that the vacuum hole 103 can be prevented from being blocked by the support member.

[0048] The support plate 107 is provided with a plurality of mass reducing holes.

[0049] The inner ring 106, the outer ring 105, the partition 109 and the support plate 107 are all integrally molded and cast into a support member by epoxy resin, which can reduce heat conduction while ensuring the support strength.

[0050] The edge of the cover body 101 is provided with a plurality of bolt connection holes so that when the cover body 101 is covered on the upper end of the pump pool body 4 , it can be conveniently connected to the flange on the upper end of the pump pool body 4 .

[0051] The bottom of the cover 101 is provided with a plurality of annular grooves 108, the center of which is the same as that of the cover 101; the annular grooves 108 are all located outside the vacuum cylinder 104. When the entire cover 101 is covered on the pump pool body 4, the annular grooves 108 cooperate with the sealing ring to ensure the sealing of the cover 101 and the pump pool.

[0052] During installation, the cryopump 3 is first connected to the pump connection flange 207 of the pump connection device 2, and then the pump connection device 2 and the cryopump 3 are hoisted into the pump pool body 4. During hoisting, the pump connection device 2 can be connected to the hoisting rope through the hoisting hole 204 or the operation hole 206; after the pump connection device 2 and the cryopump 3 are hoisted into the pump pool, they are connected to the liquid outlet 5 on the side wall of the pump pool body 4 through the liquid outlet connection flange 201. When the pump connection device 2 is connected to the liquid outlet 5, the pump connection device 2 is fixed on the inner wall of the pump pool body 4 at one place; and then the pump pool connection plate on the pump connection device 2 is connected to the inner wall of the pump pool body 4 at another place to complete the fixed installation of the cryopump 3, and then the pump pool cover 1 is covered. During maintenance, it is only necessary to open the pump pool cover 1 without lifting the cryopump 3, so as to prevent the cryopump 3 from condensing snow and ice in the air, which may cause the maintenance time to be too long, ice clogging and damaging the pump, etc.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A side-discharge cryogenic pump pool, characterized in that: The invention comprises a pump pool body (4), a pump pool cover (1) and a cryogenic pump (3); the pump pool body (4) has an opening at the top, the cryogenic pump (3) is placed in the pump pool body (4), the pump pool cover (1) covers the top of the pump pool body (4) to seal the cryogenic pump (3) in the pump pool body (4), a plurality of liquid outlets (5) are provided on the side wall of the pump pool body (4), one of the liquid outlets (5) is connected to the outlet of the cryogenic pump (3); and the cryogenic pump (3) is fixedly connected to the pump pool body (4). The pump pool cover (1) comprises a cover body (101), a vacuum cylinder (104) and a support member; The cover body (101) is provided with a vacuum hole (103), and the vacuum hole (103) is connected to the interior of the vacuum cylinder (104); The outlet of the cryogenic pump (3) is connected to the liquid outlet (5) via a pump connecting device (2), and the cryogenic pump (3) is fixedly arranged in the pump pool body (4) via the pump connecting device (2).

2. The side-outlet cryogenic pump pool according to claim 1, characterized in that: The pump connection device (2) comprises a curved connection pipe (202), one end of the connection pipe (202) being provided with a liquid outlet connection flange (201), and the other end being provided with a pump connection flange (207); the liquid outlet connection flange (201) being connected to a liquid outlet (5) on a side wall of a pump pool body (4), the pump connection flange (207) being connected to an outlet of a cryogenic pump (3), and the connection pipe (202) being further connected to a pump pool body connection plate (205), the pump pool body connection plate (205) being connected to an inner wall of the pump pool body (4).

3. The side-outlet cryogenic pump pool according to claim 2, characterized in that: The liquid outlet connection flange (201) is connected to the pump connection flange (207) via a flange connection plate (208); the flange connection plate (208) is located below the connection pipe (202) and is fixedly connected to the outer wall of the connection pipe (202); the pump connection device (2) further comprises a reinforced connection plate (203); the reinforced connection plate (203) is located above the connection pipe (202) and is fixedly connected to the outer wall of the connection pipe (202), the liquid outlet connection flange (201) and the pump connection flange (207); the pump pool body connection plate (205) is fixedly connected to the reinforced connection plate (203).

4. The side-outlet cryogenic pump pool according to claim 3, characterized in that: The reinforced connecting plate (203) is arranged vertically; the front end of the reinforced connecting plate (203) is fixedly connected to the liquid outlet connecting flange (201); the front section of the lower end of the reinforced connecting plate (203) is fixedly connected to the outer wall of the connecting pipe (202), and the rear section of the lower end is fixedly connected to the pump connecting flange (207); the pump pool body connecting plate (205) is located at the end of the reinforced connecting plate (203) away from the liquid outlet connecting flange (201).

5. The side-outlet cryogenic pump pool according to claim 3, characterized in that: A hoisting hole (204) is provided at the top of the reinforcing connection plate (203), and the hoisting hole (204) is a threaded hole; and an operating hole (206) penetrating the reinforcing connection plate (203) is provided on the reinforcing connection plate (203).

6. The side-outlet cryogenic pump pool according to claim 1, characterized in that: The top of the vacuum cylinder (104) is open, the support member is arranged inside the vacuum cylinder (104), and the cover body (101) covers the top of the vacuum cylinder (104) to seal the support member inside the vacuum cylinder (104); the top of the support member contacts the bottom of the cover body (101), and the bottom of the support member contacts the bottom of the vacuum cylinder (104) to support the cover body (101) and the bottom of the vacuum cylinder (104); when the pump pool cover (1) covers the top of the pump pool body (4), the vacuum cylinder (104) is placed inside the pump pool body (4).

7. The side-outlet cryogenic pump pool according to claim 1, characterized in that: A sealing member (102) is provided at the vacuum hole (103).

8. The side-outlet cryogenic pump pool according to claim 1, characterized in that: The support member comprises an outer ring (105) and an inner ring (106) supporting a cover body (101) and a bottom of a vacuum cylinder (104); the outer ring (105) and the inner ring (106) are connected via a plurality of partitions (109) arranged at equal intervals in a circumferential direction.

9. The side-outlet cryogenic pump pool according to claim 8, characterized in that: A support plate (107) is provided on the top of the inner ring (106); the center of the support plate (107) is penetrated by the top of the inner ring (106).

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