CN210331701U

CN210331701U - Purification device is used in methyl hydrazine production

Info

Publication number: CN210331701U
Application number: CN201920698482.0U
Authority: CN
Inventors: 冯魏; 周建; 曹长辉
Original assignee: Dongli Nantong Chemicals Co ltd
Current assignee: Dongli Nantong Chemicals Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-04-17
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses a purification device is used in methyl hydrazine production, including separation cauldron, bottom plate, stills and stock solution cauldron, there is the separation cauldron top one side of bottom plate through two sets of support frame fixed mounting, one side of separation cauldron bottom is passed through the connecting piece and is connected with stills, stills's top one side is passed through the connecting pipe and is connected with the condenser, the bottom of condenser is passed through the connecting pipe and is connected with the kettle cover top, the stock solution cauldron is installed through the gim peg in the bottom of kettle cover, stills's top fixed mounting has the control box. The utility model discloses install the difference of stills accessible methyl hydrazine boiling point and can carry out the distillation purification to methyl hydrazine, improve the effect to methyl hydrazine purification of device, increase the practicality of device, have the gas that does not have the seepage through installing gas alarm detectable device, can send the police dispatch newspaper when gas leakage, remind the timely processing gas of staff to leak the condition, increase the security of device.

Description

Purification device is used in methyl hydrazine production

Technical Field

The utility model relates to a methyl hydrazine production technical field specifically is a methyl hydrazine production is with purification device.

Background

Methyl hydrazine is also called monomethylhydrazine, the boiling point is 87.5 ℃, the freezing point is-52 ℃, the methyl hydrazine can spontaneously combust when being contacted with a strong oxidant, and the methyl hydrazine is often combined with oxidants such as dinitrogen tetroxide and the like to form a two-component liquid propellant which is used for monitoring systems of space shuttles, spacecrafts and satellites. The methyl hydrazine purification device can spontaneously combust when encountering loose substances such as dust, asbestos, wood and the like in the air and can also spontaneously combust when encountering oxidants such as hydrogen peroxide or nitric acid and the like, steam of the methyl hydrazine purification device can explode when being heated to high temperature and is corrosive, and the methyl hydrazine is easy to explode when being reacted with acid to generate salts such as methyl hydrazine sulfate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a methyl hydrazine production is with purification device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a methyl hydrazine production is with purification device, is including separation cauldron, bottom plate, stills and stock solution cauldron, there is the separation cauldron top one side of bottom plate through two sets of support frame fixed mounting, one side of separation cauldron bottom is passed through the connecting piece and is connected with stills, still's top one side is passed through the connecting pipe and is connected with the condenser, the bottom of condenser is passed through the connecting pipe and is connected with the kettle cover top, the stock solution cauldron is installed through the gim peg in the bottom of kettle cover, and the stock solution cauldron is fixed in one side at the stills top, still's top fixed mounting has the control box.

Preferably, the inside fixed mounting of condenser has the condenser pipe, and the output fixed mounting of condenser pipe has the liquid outlet that extends the condenser bottom, and the outside fixed mounting of condenser has the mount.

Preferably, the connecting piece internally mounted has communicating pipe, and the top fixed mounting of communicating pipe has the control valve, and one side fixed mounting of control valve has the gas alarm, and the opposite side fixed mounting of control valve has the mounting disc.

Preferably, still's internally mounted has the anticorrosive coating, and the inside fixed mounting of anticorrosive coating has the heating rod, and still's bottom fixed mounting has two sets of mounting brackets.

Preferably, the separation kettle is internally provided with a heat preservation shell, the heat preservation shell is internally and uniformly provided with refrigeration pipes, and one side of the bottom of the separation kettle is fixedly provided with a liquid outlet valve.

Preferably, the supporting frame is internally provided with a fixing part, the bottom of the fixing part is fixedly provided with a supporting rod, and the bottom of the supporting rod is welded with a base.

Compared with the prior art, the beneficial effects of the utility model are that: the purifying device for producing the methylhydrazine can freeze a product at the freezing point according to the difference between the freezing point of the methylhydrazine and the freezing point of impurities contained in the methylhydrazine by installing the refrigerating pipe, so that the impurities contained in the methylhydrazine are frozen under the action of the refrigerating pipe, the purifying efficiency of the device is improved, meanwhile, the methylhydrazine can be distilled and purified by installing the distillation kettle according to the difference between the boiling points of the methylhydrazine, the purifying effect of the device on the methylhydrazine is improved, the purity of the methylhydrazine is improved, the practicability of the device is increased, the device can be detected by installing the gas alarm, the device has no leaked gas, an alarm can be given when the gas is leaked, the condition that a worker timely treats the gas leakage is reminded, the safety of the device is increased, the purified methylhydrazine can be stored by installing the liquid storage kettle, the methylhydrazine is convenient to, the safety of the device is guaranteed, the device adopts a physical purification mode, the purification cost of the device is reduced, the practicability of the device is improved, and the safety of the device is guaranteed.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is a schematic front structural view of the present invention;

FIG. 3 is a schematic view of the structure of the connecting member of the present invention;

fig. 4 is a schematic structural view of the condenser of the present invention.

In the figure: 1. a separation kettle; 101. a heat preservation shell; 102. a refrigeration pipe; 103. a liquid outlet valve; 2. a support frame; 201. a fixing member; 202. a support bar; 203. a base; 3. a base plate; 4. a distillation kettle; 401. an anticorrosive layer; 402. a heating rod; 403. a mounting frame; 5. a connecting member; 501. a communicating pipe; 502. mounting a disc; 503. a control valve; 504. a gas alarm; 6. a control box; 7. a liquid storage kettle; 701. a kettle cover; 8. a condenser; 801. a condenser tube; 802. a liquid outlet; 803. a fixing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a purification device for producing methyl hydrazine comprises a separation kettle 1, a bottom plate 3, a distillation kettle 4 and a liquid storage kettle 7, wherein the separation kettle 1 is fixedly arranged on one side of the top of the bottom plate 3 through two groups of support frames 2, the bottom plate 3 can provide an installation position for the device and increase the stability of the device, freezing separation can be carried out on impurities contained in methyl hydrazine according to the freezing point of liquid through a refrigeration pipe 102 in the separation kettle 1, the impurities contained in the methyl hydrazine are made to be frozen under the action of the refrigeration pipe 102, the methyl hydrazine and the impurities contained in the methyl hydrazine are separated, one side of the bottom of the separation kettle 1 is connected with the distillation kettle 4 through a connecting piece 5, the connecting piece 5 can be connected with the separation kettle 1 and the distillation kettle 4, the unfrozen methyl hydrazine in the separation kettle 1 can be conveyed into the distillation kettle 4 through the connecting piece 5, one side of the top of the distillation kettle 4 is connected with a condenser 8 through a, methyl hydrazine steam in a condensation pipe 801 can be rapidly cooled and condensed into liquid through condensate, the bottom of a condenser 8 is connected with the top of a kettle cover 701 through a connecting pipe, the kettle cover 701 and a liquid storage kettle 7 can form a closed whole to prevent the methyl hydrazine from contacting dust in the air and causing spontaneous combustion, the bottom of the kettle cover 701 is provided with the liquid storage kettle 7 through a fixing bolt, the liquid storage kettle 7 can store purified methyl hydrazine, the methyl hydrazine is conveniently and uniformly processed, the methyl hydrazine is prevented from contacting the air, the safety of the device is ensured, the liquid storage kettle 7 is fixed on one side of the top of a distillation kettle 4, the top of the distillation kettle 4 is fixedly provided with a control box 6, the control box 6 adopts a plc S7-200CPU226CN programmable controller which is used for executing instructions of operations such as storage logic operation, sequential control, timing, counting, arithmetic operation and the like, and the I and O output interfaces through digital or analog input, the output end of the control box 6 is electrically connected with the heating rod 402 through a lead wire and controls the operation of the heating rod 402.

Further, the inside fixed mounting of condenser 8 has condenser pipe 801, and condenser pipe 801 can fully contact with the inside condensate of condenser 8, improves the effect of condensation, and condenser pipe 801's output fixed mounting has the liquid outlet 802 that extends condenser 8 bottom, and liquid outlet 802 can be convenient for collect the liquid that methyl hydrazine steam condenses into, and condenser 8's outside fixed mounting has mount 803, can fix condenser 8's position through mount 803.

Further, connecting pipe 501 is installed inside connecting piece 5, connecting pipe 501 can be convenient for carry liquid, control valve 503 is fixedly installed at the top of connecting pipe 501, the liquid flow of the inside transport of connecting pipe 501 can be controlled by control valve 503, gas alarm 504 is fixedly installed on one side of control valve 503, gas alarm 504 can detect the device has gas without leakage, alarm can be given out when gas leaks, the timely condition of processing gas leakage of staff is reminded, the safety of the device is improved, and mounting disc 502 is fixedly installed on the other side of control valve 503, the leakproofness of connection can be increased through mounting disc 502, and the device installation is facilitated.

Further, stills 4's internally mounted has anticorrosive coating 401, anticorrosive coating 401 can prevent that methyl hydrazine from corroding stills 4, increase stills 4's life, anticorrosive coating 401's inside fixed mounting has heating rod 402, heating rod 402 can be with electric energy conversion heat energy, can distill the purification to methyl hydrazine according to the difference of liquid boiling point, improve the effect of device to methyl hydrazine purification, the purity of methyl hydrazine has been improved, increase device's practicality, and stills 4's bottom fixed mounting has two sets of mounting brackets 403, can firmly fix stills 4 in top one side of bottom plate 3 through mounting bracket 403.

Further, a heat preservation shell 101 is installed inside the separation kettle 1, the heat preservation shell 101 can improve the heat preservation performance of the device, reduce the diffusion of temperature, and improve the refrigeration effect of the refrigeration pipe 102, the refrigeration pipe 102 is uniformly distributed inside the heat preservation shell 101, the refrigeration pipe 102 can freeze a freezing point product according to the difference between the freezing point of methylhydrazine and the freezing point of impurities contained in methylhydrazine, so that the impurities contained in methylhydrazine are frozen under the action of the refrigeration pipe 102, the purification efficiency of the device is improved, a liquid outlet valve 103 is fixedly installed on one side of the bottom of the separation kettle 1, the impurities contained in methylhydrazine inside the separation kettle 1 are frozen and placed for thawing, thawed liquid is collected through the liquid outlet valve 103, a low temperature meter is fixedly installed on the front of the separation kettle 1, the temperature inside the separation kettle 1 can be monitored in real time, the device is convenient for workers to operate, and a liquid conveying pipe is fixedly welded on the top of, methyl hydrazine can be injected into the separation kettle 1 through a liquid conveying pipe at the top of the separation kettle 1.

Further, the internally mounted of support frame 2 has mounting 201, and mounting 201 can firmly fix bracing piece 202 in the both sides of separation cauldron 1, and the device of being convenient for is installed, and mounting 201's bottom fixed mounting has bracing piece 202, and the stable structure of the multiplicable device of bracing piece 202 improves the stability of device, and the welding of bracing piece 202's bottom has base 203, and base 203 can enlarge the contact surface of bracing piece 202 and bottom plate 3, improves the steadiness of device.

The working principle is that methyl hydrazine can be injected into the separation kettle 1 through a liquid conveying pipe at the top of the separation kettle 1, meanwhile, a refrigerating pipe 102 is externally connected with a refrigerator through a lead, refrigerating fluid is conveyed to the interior of the refrigerating pipe 102 through the refrigerator in a circulating manner, freezing point products are frozen through the refrigerating pipe 102 according to the difference between the freezing point of the methyl hydrazine and the freezing point of impurities contained in the methyl hydrazine, the impurities contained in the methyl hydrazine are made to be frozen under the action of the refrigerating pipe 102, the purifying efficiency of the device is improved, meanwhile, the methyl hydrazine enters the distillation kettle 4 through a connecting piece 5, the methyl hydrazine is distilled and purified through a heating rod 402 in the distillation kettle 4, the purifying effect of the device on the methyl hydrazine is improved, the purity of the methyl hydrazine is improved, the distilled methyl hydrazine steam enters the interior of a condenser 8 through a connecting pipe, and can be driven to be in contact with sufficient condensate in the condenser 8 through a condensing pipe 801, the temperature of the methyl hydrazine steam is reduced, so that the methyl hydrazine steam is condensed into liquid, and the liquid enters the liquid storage kettle 7 through the liquid outlet 802 for storage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a methyl hydrazine production is with purification device, includes separation kettle (1), bottom plate (3), stills (4) and stock solution cauldron (7), its characterized in that: the top one side of bottom plate (3) has separation cauldron (1) through two sets of support frame (2) fixed mounting, one side of separation cauldron (1) bottom is passed through connecting piece (5) and is connected with stills (4), top one side of stills (4) is passed through the connecting pipe and is connected with condenser (8), the bottom of condenser (8) is passed through the connecting pipe and is connected with kettle cover (701) top, stock solution cauldron (7) are installed through the gim peg in the bottom of kettle cover (701), and fixes in one side at stills (4) top in stock solution cauldron (7), the top fixed mounting of stills (4) has control box (6).

2. The purification device for methylhydrazine production according to claim 1, characterized in that: the inside fixed mounting of condenser (8) has condenser pipe (801), and the output fixed mounting of condenser pipe (801) has liquid outlet (802) that extends condenser (8) bottom, and the outside fixed mounting of condenser (8) has mount (803).

3. The purification device for methylhydrazine production according to claim 1, characterized in that: the connecting piece (5) is internally provided with a communicating pipe (501), the top of the communicating pipe (501) is fixedly provided with a control valve (503), one side of the control valve (503) is fixedly provided with a gas alarm (504), and the other side of the control valve (503) is fixedly provided with a mounting disc (502).

4. The purification device for methylhydrazine production according to claim 1, characterized in that: the inside mounting of stills (4) has anticorrosive coating (401), and the inside fixed mounting of anticorrosive coating (401) has heating rod (402), and the bottom fixed mounting of stills (4) has two sets of mounting brackets (403).

5. The purification device for methylhydrazine production according to claim 1, characterized in that: the separation kettle is characterized in that a heat insulation shell (101) is arranged inside the separation kettle (1), refrigeration pipes (102) are uniformly distributed inside the heat insulation shell (101), and a liquid outlet valve (103) is fixedly arranged on one side of the bottom of the separation kettle (1).

6. The purification device for methylhydrazine production according to claim 1, characterized in that: the inside mounting of support frame (2) has mounting (201), and the bottom fixed mounting of mounting (201) has bracing piece (202), and the bottom welding of bracing piece (202) has base (203).