CN217402273U

CN217402273U - Liquid ammonia recycling device

Info

Publication number: CN217402273U
Application number: CN202220319165.5U
Authority: CN
Inventors: 舒江; 郭淑平; 李金恒
Original assignee: SHAANXI WEIHE COAL CHEMICAL GROUP CO Ltd
Current assignee: SHAANXI WEIHE COAL CHEMICAL GROUP CO Ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-09-09
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a liquid ammonia recycle device, including the ammonia collection tank, the ammonia collection tank has connected gradually valve G, check valve C, low pressure nitrogen pipe net, check valve A, valve B, check valve B, valve F forms closed circuit, it has connected gradually pipe A according to the flow direction to connect gradually between valve B and the check valve B, pipe B, be provided with valve A on the pipe A, pipe A keeps away from valve B's one end and is connected with the ammonia pump, be provided with valve C on the pipe B, the one end that check valve B was kept away from to pipe B is connected with the ammonia jar, be provided with the steam heat tracing coil pipe on the ammonia collection tank, the one end of steam heat tracing coil pipe is connected with low pressure steam pipe net, be provided with valve E between steam heat tracing coil pipe and the low pressure steam pipe net, the other end of steam heat tracing coil pipe is connected with the steam trap, be provided with valve O between steam heat tracing coil pipe and the steam trap. The utility model discloses the problem of the inconvenient processing of residual liquid ammonia before ammonia pump and the ammonia tank maintenance that exist in the current device of wading ammonia has been solved to the device.

Description

Liquid ammonia recycling device

Technical Field

The utility model belongs to the technical field of liquid ammonia production, a liquid ammonia recycle device is related to.

Background

At present, the mode of conventional treatment ammonia pump and ammonia tank maintenance before residual liquid ammonia is for sending ammonia to torch burning through the relief valve bypass and handle, not only resource-wasting, and the difficult burning of ammonia very easily causes environmental pollution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liquid ammonia recycle device has solved the problem of the inconvenient processing of residual liquid ammonia before existence ammonia pump and ammonia tank overhaul among the current ammonia device of wading.

The utility model adopts the technical scheme that, liquid ammonia recycle device, including the ammonia collection tank, the ammonia collection tank has connected gradually valve G, check valve C, low pressure nitrogen pipe net, check valve A, valve B, check valve B, valve F forms closed loop, pipe A has connected gradually according to the flow direction between valve B and the check valve B, pipe B, be provided with valve A on the pipe A, the one end that pipe A keeps away from valve B is connected with the ammonia pump, be provided with valve C on the pipe B, the one end that check valve B was kept away from to pipe B is connected with the ammonia tank, be provided with the steam heat tracing coil pipe on the ammonia collection tank, the one end of steam heat tracing coil pipe is connected with the low pressure steam pipe net, be provided with valve E between steam heat tracing coil pipe and the low pressure steam pipe net, the other end of steam heat tracing coil pipe is connected with the steam trap, be provided with valve O between steam heat tracing coil pipe and the steam trap, the ammonia collection tank still has connected gradually valve K, valve B, Check valve D, ammonia press low pressure entry knockout drum.

The utility model is also characterized in that,

the ammonia collecting tank is also sequentially connected with a valve J, a valve L, a check valve F and a torch.

And a valve D is connected between the check valve B and the valve F through a pipe D, and one end of the pipe D, which is far away from the check valve B, is connected between the valve J and the valve L.

The ammonia collecting tank is connected with valve I, relief valve according to flow direction in proper order through pipe E, and the one end that the ammonia collecting tank was kept away from to pipe E is connected with the one end that pipe D is close to valve L.

A pilot shower valve A is connected between the pipe D and the valve F through a pipe C.

The ammonia collecting tank is also sequentially connected with a valve H and a pressure gauge.

The ammonia collecting tank is connected with a valve M, a liquid level meter and a valve N in sequence to form a loop.

The ammonia collecting tank is also connected with a pilot shower valve B.

A valve P is connected between the ammonia collecting tank and the valve O through a pipe F.

The beneficial effects of the utility model are that, the utility model discloses liquid ammonia recycle device can realize the complete recovery of liquid ammonia, need not to set up power delivery unit, reduces the investment, when avoiding the waste of residual liquid ammonia, has eliminated environmental pollution, and it is extravagant to reduce the energy.

Drawings

Fig. 1 is a schematic structural view of the liquid ammonia recycling device of the present invention.

In the figure, 1, an ammonia pump, 2, a valve A, 3, a low-pressure nitrogen pipe network, 4, a check valve A, 5, a valve B, 6, an ammonia tank, 7, a valve C, 8, a check valve B, 9, a pilot valve A, 10, a valve D, 11, a low-pressure steam pipe network, 12, a valve E, 13, a valve F, 14, an ammonia collecting tank, 15, a check valve C, 16, a valve G, 17, a pressure gauge, 18, a valve H, 19, a valve I, 20, a safety valve, 21, a valve J, 22, a valve K, 23, a check valve D, 24, an ammonia compressor low-pressure inlet separating tank, 25, a valve L, 26, a check valve F, 27, a torch, 28, a valve M, 29, a liquid level gauge, 30, a valve N, 31, a steam heat tracing coil, 32, a pilot valve B, 33, a valve O, 34, a steam trap, 35, a valve P, 36, a pipe A, 37, a pipe B, a pipe C, a pipe D, a pipe D, a pipe, 40, a pipe E, 41. and (F) a tube.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a liquid ammonia recycling device, the structure is shown in figure 1, including ammonia collection tank 14, ammonia collection tank 14 connects gradually valve G16, check valve C16, low pressure nitrogen network 3, check valve A16, valve B16, check valve B16, valve F16 forms closed circuit, connect gradually pipe A16, pipe B16 according to the flow direction between valve B16 and check valve B16, be provided with valve A16 on pipe A16, the one end that pipe A16 keeps away from valve B16 is connected with ammonia pump 1, be provided with valve C16 on pipe B16, the one end that pipe B16 keeps away from check valve B16 is connected with ammonia tank 6, ammonia collection tank 14 still connects gradually valve J16, valve L16, check valve F16, torch 27, connect through D16 between check valve B16 and valve F16 and be connected with valve D16, the one end that pipe D16 keeps away from check valve B16 is connected with valve J16, be connected with between L16 and the pipe 16, be connected with a pipe 16, the ammonia collecting tank 14 is sequentially connected with a valve I19 and a safety valve 20 according to the flowing direction through a pipe E40, one end of a pipe E40 far away from the ammonia collecting tank 14 is connected with one end of a pipe D39 close to a valve L25, the ammonia collecting tank 14 is provided with a steam heat tracing coil 31, one end of the steam heat tracing coil 31 is connected with a low-pressure steam pipe network 11, a valve E12 is arranged between the steam heat tracing coil 31 and the low-pressure steam pipe network 11, the other end of the steam heat tracing coil 31 is connected with a steam trap 34, a valve O33 is arranged between the steam heat tracing coil 31 and the steam trap 34, a valve P35 is connected between the ammonia collecting tank 14 and the valve O33 through a pipe F41, the ammonia collecting tank 14 is further sequentially connected with a valve K22, a check valve D23 and an ammonia press low-pressure inlet separating tank 24, the ammonia collecting tank 14 is further sequentially connected with a valve H18 and a pressure gauge 17, the ammonia collecting tank 14 is sequentially connected with a valve M28, a liquid level gauge 29 and a valve N30 to form a loop, the ammonia collection tank 14 is also connected to a pilot valve B32.

The utility model relates to a liquid ammonia recycle device, open valve A2, valve C7, valve F13, then pipeline and ammonia holding tank 14 intercommunication of being connected with ammonia pump 1 and ammonia tank, liquid ammonia in the ammonia holding tank 14 is through steam heat tracing coil pipe 31 heating back, liquid ammonia turns into gas ammonia, open valve K22, gas ammonia is inhaled ammonia press low pressure entry knockout drum 24, be liquid ammonia through ammonia refrigeration system compression condensation, deposit in the ammonia refrigeration system, the complete recovery of liquid ammonia has been realized.

The utility model relates to a liquid ammonia recycle device is provided with check valve A4, check valve B8, check valve D23, check valve F26, manometer 17, level gauge 29, relief valve 20, can guarantee the utility model discloses the controllability and the security of device, liquid ammonia can realize the zero release basically after recovery processing, avoid environmental pollution, and it is extravagant to reduce the energy, has made the contribution for energy-concerving and environment-protective, simultaneously, need not to set up power transport unit, reduces the investment, when avoiding remaining liquid ammonia extravagant, has eliminated environmental pollution, does benefit to the industrial popularization and application.

Claims

1. The liquid ammonia recycling device is characterized by comprising an ammonia collecting tank (14), wherein the ammonia collecting tank (14) is sequentially connected with a valve G (16), a check valve C (15), a low-pressure nitrogen pipe network (3), a check valve A (4), a valve B (5), a check valve B (8) and a valve F (13) to form a closed loop, a pipe A (36) and a pipe B (37) are sequentially connected between the valve B (5) and the check valve B (8) according to the flowing direction, a valve A (2) is arranged on the pipe A (36), one end, away from the valve B (5), of the pipe A (36) is connected with an ammonia pump (1), a valve C (7) is arranged on the pipe B (37), one end, away from the check valve B (8), of the pipe B (37) is connected with an ammonia tank (6), a steam heat tracing coil (31) is arranged on the ammonia collecting tank (14), one end of the steam heat tracing coil (31) is connected with a low-pressure steam pipe network (11), a valve E (12) is arranged between the steam heat tracing coil pipe (31) and the low-pressure steam pipe network (11), the other end of the steam heat tracing coil pipe (31) is connected with a steam trap (34), a valve O (33) is arranged between the steam heat tracing coil pipe (31) and the steam trap (34), and the ammonia collecting tank (14) is sequentially connected with a valve K (22), a check valve D (23) and an ammonia press low-pressure inlet separating tank (24).

2. The apparatus for recycling liquid ammonia according to claim 1, wherein the ammonia collection tank (14) is further connected with a valve J (21), a valve L (25), a check valve F (26), and a torch (27) in sequence.

3. The apparatus for recycling liquid ammonia according to claim 2, wherein a valve D (10) is connected between the check valve B (8) and the valve F (13) through a pipe D (39), and one end of the pipe D (39) away from the check valve B (8) is connected between the valve J (21) and the valve L (25).

4. The apparatus according to claim 3, wherein the ammonia collection tank (14) is connected with a valve I (19) and a safety valve (20) in sequence in the flow direction through a pipe E (40), and one end of the pipe E (40) far from the ammonia collection tank (14) is connected with one end of a pipe D (39) near the valve L (25).

5. Device for recycling liquid ammonia according to claim 3, characterized in that a pilot valve A (9) is connected between said pipe D (39) and valve F (13) through a pipe C (38).

6. The device for recycling liquid ammonia according to claim 1, wherein the ammonia collection tank (14) is further connected with a valve H (18) and a pressure gauge (17) in sequence.

7. The device for recycling liquid ammonia according to claim 1, wherein the ammonia collection tank (14) is connected with a valve M (28), a liquid level meter (29) and a valve N (30) in sequence to form a loop.

8. The apparatus for recycling liquid ammonia according to claim 1, wherein a pilot valve B (32) is further connected to the ammonia collection tank (14).

9. The apparatus for recycling liquid ammonia according to claim 1, wherein a valve P (35) is connected between said ammonia collection tank (14) and said valve O (33) through a pipe F (41).