CN207958185U - A kind of dimethyl ether production automatic alkali adding device - Google Patents
A kind of dimethyl ether production automatic alkali adding device Download PDFInfo
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- CN207958185U CN207958185U CN201721921985.7U CN201721921985U CN207958185U CN 207958185 U CN207958185 U CN 207958185U CN 201721921985 U CN201721921985 U CN 201721921985U CN 207958185 U CN207958185 U CN 207958185U
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- lye
- valve
- storage tank
- methanol
- pump
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Abstract
The utility model discloses a kind of dimethyl ether production automatic alkali adding devices, including lye storage tank, methanol storage tank, canned motor pump and drain pipe, it is provided with lye heater on the outside of the lye storage tank, lye storage tank upper end is connected with lye injection pump, and lye injection pump one end is connected with lye injection valve；Methanol storage tank upper end and bottom are connected separately with return valve and methanol injection valve；Described canned motor pump one end is connected and installed with valve before pump, and the drain tube end is equipped with mixed liquor dump valve.Advantageous effect is：Lye is injected in methanol by lye injection pump, and so that methanol and lye is sufficiently mixed using canned motor pump, and mixed liquor is injected in production system, realizes the automatic addition of lye；Lye injection rate is adjusted by lye injection pump, realizes the adjusting of ph value of mixture, ensures that ph value of mixture is stablized, effectively neutralize the organic acid in methanol and promotes the saponification of lipid in crude carbinol, ensures the normal production of dimethyl ether.
Description
Technical field
The utility model is related to dimethyl ether to produce auxiliary device technical field, and in particular to a kind of dimethyl ether production use is automatic
Adder-subtractor.
Background technology
Contain acidic materials in the material benzenemethanol of dimethyl ether production, acidity on the weak side is presented, in process of production acid solution
Make carbon steel equipment that gas-evolving electrodes occur, gas-evolving electrodes can reduce with pH value and be accelerated, and carbon steel equipment wall thickness will occur largely to subtract
Thin phenomenon；Also contain the impurity such as organic aliphatic acid and high alcohol in crude carbinol, contacts and be dehydrated with catalyst surface
Reaction generates lipid material, makes tower reactor knot wax occluding device and pipeline.These serious shortcomings exist for dimethyl ether manufacturing enterprise
It is brought a lot of trouble in production process, and causes very big economic loss.
Applicants have discovered that at least there is following technical problem in the prior art：Original plus-minus mode is using artificial direct
Liquid caustic soda is added in methanol tank car or methanol tank, not only plus alkali bothers, and security risk is big, and can not ensure that raw material pH value is equal
It is even.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of dimethyl ether production automatic alkali adding
In a manner of solution in the prior art original plus-minus directly methanol tank car or methanol tank is added using artificial in liquid caustic soda by device
It is interior, not only plus alkali trouble, security risk is big, and can not ensure raw material pH value uniformly etc. technical problems.The utility model provides
Many technical solutions in preferred technical solution can realize that lye is automatically injected, can be carried out by adjusting lye injection rate
PH value adjustment makes ph value of mixture tend towards stability；Labor intensity is greatly reduced, while the generation etc. of safety accident can be avoided
Technique effect, elaboration as detailed below.
To achieve the above object, the utility model provides following technical scheme：
A kind of dimethyl ether production automatic alkali adding device provided by the utility model, including lye storage tank, methanol store
Tank, canned motor pump and drain pipe, the lye storage tank outside are provided with lye heater, lye storage tank upper end connection peace
Equipped with lye injection pump, lye injection pump one end is connected and installed with lye injection valve；Methanol storage tank upper end and bottom
Portion is connected and installed with return valve and methanol injection valve respectively；Described canned motor pump one end is connected and installed with valve before pump, the drain pipe
It is connected with production system, and the drain tube end is equipped with mixed liquor dump valve；The lye injection valve, methanol note
Enter valve with this three of valve before the pump to be two-by-two connected；The canned motor pump, the mixed liquor dump valve and the return valve this three
Person is connected two-by-two.
Using a kind of above-mentioned dimethyl ether production automatic alkali adding device, when use device, by the methanol injection valve, described
Valve and the mixed liquor dump valve are adjusted to open state before lye injection valve, the pump, at this time the methanol storage tank with it is described
Canned motor pump is connected, and the canned motor pump is opened, and extracts methanol solution, the lye injection pump is opened, by the lye storage tank
Internal lye is extracted and is injected into methanol, realizes being sufficiently mixed for methanol and lye using the canned motor pump, and pass through institute
It states drain pipe and mixed liquor is sent to production equipment, to realize the automatic addition of lye, greatly reduce the amount of labour, while can
It avoids that safety accident occurs；The adjusting that lye injection rate is carried out by the lye injection pump, make the pH value of mixed liquor 7-9 it
Between, to the saponification for achieving the effect that the organic acid effectively neutralized in methanol and promoting lipid in crude carbinol, can ensure
The normal production of dimethyl ether, helps to improve the service life of process units；It can be to the alkali by the lye heater
Lye inside liquid storage tank is heated, when preventing winter from working, lye crystallization.
Preferably, being mounted on liquid level gauge on the lye storage tank and the methanol storage tank.
Preferably, the lye heater uses tube heater, and the lye heater Spiral distribution is described
On the outside of lye storage tank.
Preferably, the lye injection pump pumps for metered shot.
Preferably, valve and described before the methanol injection valve, the return valve, the mixed liquor dump valve, the pump
Lye injection valve is needle valve, and valve body is made of stainless steel.
Preferably, the drain side of the canned motor pump is equipped with pH sensor.
Advantageous effect is：1, lye is injected in methanol by the lye injection pump, and is made using the canned motor pump
Methanol and lye are sufficiently mixed, and mixed liquor is injected in production system, are realized the automatic addition of lye, are greatly reduced labour
Intensity, while the generation of safety accident can be avoided；
2, lye injection rate is adjusted by the lye injection pump, realizes the adjusting of ph value of mixture, ensure mixed liquor PH
Value stabilization effectively neutralizes the organic acid in methanol and promotes the saponification of lipid in crude carbinol, ensures the normal life of dimethyl ether
Production.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the utility model increases pH value structure of the detecting device schematic diagram.
The reference numerals are as follows：
1, lye storage tank；2, lye heater；3, methanol injection valve；4, methanol storage tank；5, return valve；6, drain
Pipe；7, mixed liquor dump valve；8, canned motor pump；801, pH sensor；9, valve before pumping；10, lye injection valve；11, lye injects
Pump.
Specific implementation mode
It, below will be to the technology of the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Shown in Figure 1, the utility model provides a kind of dimethyl ether production automatic alkali adding device, including lye storage
Tank 1, methanol storage tank 4, canned motor pump 8 and drain pipe 6,1 outside of lye storage tank are provided with lye heater 2, lye storage tank 1
Upper end is connected and installed with lye injection pump 11, and 11 one end of lye injection pump is connected and installed with lye injection valve 10；Methanol storage tank 4
Upper end and bottom, which are separately connected, is equipped with return valve 5 and methanol injection valve 3；8 one end of canned motor pump is connected and installed with valve 9 before pump, row
Liquid pipe 6 is connected with production system, and 6 end of drain pipe is equipped with mixed liquor dump valve 7；Lye injection valve 10, methanol injection
Valve 3 is connected two-by-two with 9 this three of valve before pump；This three is connected two-by-two with return valve 5 for canned motor pump 8, mixed liquor dump valve 7.
As optional embodiment, it is mounted on liquid level gauge on lye storage tank 1 and methanol storage tank 4, is arranged in this way
Convenient for observing the amount of storage of lye storage tank 1 and 4 internal solution of methanol storage tank；
Lye heater 2 uses tube heater, and 2 Spiral distribution of lye heater is in the outside of lye storage tank 1, in this way
The heating effect that can ensure lye heater 2 to 1 inside lye of lye storage tank is set；
Lye injection pump 11 pumps for metered shot, and setting in this way is convenient for the adjusting of lye injection rate, ensures pH value tune
Section is accurate；
Valve 9 and lye injection valve 10 are needle valve before methanol injection valve 3, return valve 5, mixed liquor dump valve 7, pump, and
Valve body is made of stainless steel, and setting in this way can improve the corrosion resistance of device, help to improve the service life of device；
As shown in Fig. 2, the drain side of canned motor pump 8 is equipped with pH sensor 801, setting is convenient for the PH to mixed liquor in this way
Value is detected, and auxiliary realizes the adjusting of pH value.
Using the above structure, when use device, valve 9 before methanol injection valve 3, lye injection valve 10, pump and mixed liquor are arranged
Go out valve 7 and be adjusted to open state, methanol storage tank 4 is connected with canned motor pump 8 at this time, and canned motor pump 8 is opened, and extracts methanol solution, alkali
Liquid injection pump 11 is opened, and 1 inside lye of lye storage tank is extracted and is injected into methanol, and methanol is realized using canned motor pump 8
With being sufficiently mixed for lye, and mixed liquor is sent to by production equipment by drain pipe 6, to realize the automatic addition of lye, greatly
The amount of labour is reduced greatly, while can avoid that safety accident occurs；The adjusting of lye injection rate is carried out by lye injection pump 11,
Make the pH value of mixed liquor between 7-9, to reach the organic acid effectively neutralized in methanol and the soap for promoting lipid in crude carbinol
The effect for changing reaction, can ensure the normal production of dimethyl ether, help to improve the service life of process units；By lye plus
Hot device 2 can heat the lye inside lye storage tank 1, when preventing winter from working, lye crystallization.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (6)
1. a kind of dimethyl ether production automatic alkali adding device, it is characterised in that：Including lye storage tank (1), methanol storage tank
(4), canned motor pump (8) and drain pipe (6), lye storage tank (1) outside are provided with lye heater (2), and the lye is deposited
Storage tank (1) upper end is connected and installed with lye injection pump (11), and described lye injection pump (11) one end is connected and installed with lye injection
Valve (10)；Methanol storage tank (4) upper end and bottom, which are separately connected, is equipped with return valve (5) and methanol injection valve (3)；It is described
Canned motor pump (8) one end is connected and installed with valve (9) before pump, and the drain pipe (6) is connected with production system, and the drain pipe
(6) end is equipped with mixed liquor dump valve (7)；Valve before the lye injection valve (10), the methanol injection valve (3) and the pump
(9) this three is connected two-by-two；The canned motor pump (8), the mixed liquor dump valve (7) and the return valve (5) this three two
Two are connected.
2. a kind of dimethyl ether production automatic alkali adding device according to claim 1, it is characterised in that：The lye storage tank
(1) and on the methanol storage tank (4) it is mounted on liquid level gauge.
3. a kind of dimethyl ether production automatic alkali adding device according to claim 1, it is characterised in that：The lye heater
(2) tube heater is used, and lye heater (2) Spiral distribution is on the outside of the lye storage tank (1).
4. a kind of dimethyl ether production automatic alkali adding device according to claim 1, it is characterised in that：The lye injection pump
(11) it is that metered shot pumps.
5. a kind of dimethyl ether production automatic alkali adding device according to claim 1, it is characterised in that：The methanol injection valve
(3), valve (9) and the lye injection valve (10) are needle before the return valve (5), the mixed liquor dump valve (7), the pump
Type valve, and valve body is made of stainless steel.
6. a kind of dimethyl ether production automatic alkali adding device according to claim 1, it is characterised in that：The canned motor pump (8)
Drain side pH sensor (801) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721921985.7U CN207958185U (en) | 2017-12-29 | 2017-12-29 | A kind of dimethyl ether production automatic alkali adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721921985.7U CN207958185U (en) | 2017-12-29 | 2017-12-29 | A kind of dimethyl ether production automatic alkali adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207958185U true CN207958185U (en) | 2018-10-12 |
Family
ID=63731475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721921985.7U Active CN207958185U (en) | 2017-12-29 | 2017-12-29 | A kind of dimethyl ether production automatic alkali adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207958185U (en) |
-
2017
- 2017-12-29 CN CN201721921985.7U patent/CN207958185U/en active Active
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| GR01 | Patent grant | ||
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Effective date of registration: 20221020 Granted publication date: 20181012 |
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