WO2016150226A1 - Integrated and water yield adjustable t-type multi-effect water distillator - Google Patents

Abstract

An integrated and water yield adjustable T-type multi-effect water distillator, comprising three major parts, i.e., a T-type multi-effect water distillator, a distilled water storage tank (32) and a distilled water delivery and distribution system. The T-type multi-effect water distillator is composed of built-in heat exchangers (22, 23), a separating device, preheaters (5, 8, 10, 12, 14, 16), two condensers, valves, meters and a control part. A storage tank liquid level probe (33) is provided at the bottom of the distilled water storage tank (32), wherein the storage tank liquid level probe detects and judges the water consumption in the entire distilled water delivery and distribution system to adjust the water yield of the water distillator. Specifically, when the water consumption of a water consumption node (35) in a workshop increases, in order to ensure the reflux flow velocity, a frequency converter for a delivery pump (34) increases the frequency so as to increase the water delivery amount. As the liquid level of the distilled water storage tank (32) detected by the storage tank liquid level probe (33) gradually decreases, a value of the water yield plus the water discharge amount is used to determine the water feed amount of the device, i.e., the water feeding amount is adjusted by adjusting a feed water adjusting valve (20). Problems of energy consumption and risk control difficulty occurring to other devices during frequent start-stops are solved; moreover, as an integrated design is used, the transportation is convenient.

Description

 One-piece adjustable water production T-type multi-effect distilled water machine

 The invention belongs to the technical field of medical manufacturing equipment, and mainly relates to an integrated adjustable water production T-type multi-effect distilled water machine.

Current multi-effect distilled water machines typically consist of two or more evaporative heat exchangers, separation units, preheaters, two condensers, valves, meters, and control sections. The working principle is that the purified water which has been sufficiently preheated is subjected to multi-effect evaporation and condensation to remove non-condensable gases and impurities, thereby obtaining high-purity water for injection. The injection water prepared by distillation has a good removal effect on impurities such as suspended matter, colloid, bacteria, virus, pyrogen and the like which are not active in the raw water. At present, the existing multi-effect distilled water machine in the domestic market is an industrial design with a fixed output. When the distilled water storage tank is full, the machine is shut down, and when the water level is lowered to a certain liquid level, the equipment is restarted. Complete a series of preheating, rinsing, disinfecting and other processes each time the equipment is restarted.

This equipment technology greatly depletes energy and time. It is also difficult to control bacteria and bacteria during long-term shutdown. Frequent start-stop devices also have an impact on the life of the device and individual components. And the internal design of the S-type multi-effect distilled water machine adopted by most manufacturers and the separation control of the pyrogen have certain imperfections and risks.

In order to solve the above problems, the present invention proposes an integrated adjustable water production T-type multi-effect distilled water machine; under the premise of preparing high-quality qualified injection water, the invention solves the energy loss during the frequent start-stop process of other equipment, and the risk is difficult to control, etc. problem. The integrated design has the advantages of convenient transportation, centralized sewage discharge, clear interface, electrical integrity linkage and good control of the dead pipeline of the coupling part. Innovative improvement and improvement of equipment; well improved quality of injection water preparation and separation control of pyrogens.

The integrated adjustable water production T-type multi-effect distilled water machine is characterized in that it comprises: a T-type multi-effect distilled water machine, a distilled water storage tank and a distilled water conveying and distribution system, and the parts are connected by a water pipe; the T The multi-effect distilled water machine comprises 6 sets of heat exchange mechanisms and 1 set of built-in heat exchangers; the 6 sets of heat exchange mechanisms are connected in series by a water conduit; the heat exchange mechanism comprises an evaporation column and a heat exchanger a separating device, a condenser, a preheater, a valve, a meter, and a control portion; the heat exchanger, the separating device, and the condenser are disposed inside the evaporator; and the set of the built-in heat exchanger is disposed There is a filter which is formed by two built-in heat exchangers connected in series through a water conduit, which is provided with a water inlet and a water outlet, and the distilled water outlet is provided with a temperature conductivity probe and a drain valve; The front end of the distilled water storage tank is provided with a water inlet valve, which is arranged on the water inlet pipe, a liquid level probe is arranged at the bottom of the distilled water storage tank, and a transfer pump is arranged at the water outlet of the distilled water storage tank. Drag water passage connected to the point; The delivery pump provided with a frequency converter; not the end point of the water plant, which is connected to the distilled water storage tank through the top inlet conduit, to form a loop node and distilled water tank.

Further, the six groups of heat exchange mechanisms respectively include a first group of heat exchange mechanisms, a second group of heat exchange mechanisms, a third group of heat exchange mechanisms, a fourth group of heat exchange mechanisms, a fifth group of heat exchange mechanisms, and Six groups of heat exchange agencies.

Further, the first group of heat exchange mechanisms are provided with an industrial steam inlet pipe and an industrial steam outlet pipe; an industrial steam regulating valve and a safety valve are arranged on the industrial steam inlet pipe; and a connection is provided at the rear end of the safety valve. The pipe is connected to the evaporation column of the first group of heat exchange mechanisms, and an industrial steam pressure probe is disposed on the connecting pipe.

Further, the heat exchanger, the separating device and the condenser inside the evaporation column, the condenser is a expansion tube, and the double tube plate is designed without welding; the heat exchanger is provided with The water distribution tray is configured to promote falling film flashing; the separator comprises a first stage separation, a second stage separation and a third stage separation; wherein the first stage separation is a falling film flash separation, and the second stage separation is 180 degrees Gravity separation of the reentry, the third stage separation is hygienic spiral centrifugation.

Further, the first group of heat exchange mechanism evaporation columns are provided with a non-condensable gas discharge port and a nozzle.

Further, the bottom end of the steam column in the sixth group of heat exchangers is provided with a steam column connected to the first group of heat exchangers to form a loop; a concentrated water discharge port is arranged on the pipeline .

Further, the built-in heat exchanger is provided with a purified water inlet, and is connected to the built-in heat exchanger through the purified water inlet pipe; and a feed water regulating valve is disposed on the purified water inlet pipe.

Further, the built-in heat exchanger is provided with a cooling water inlet and a cooling water outlet, and is connected to the built-in heat exchanger through a cooling water inlet pipe; a filter and a flow meter are arranged on the cooling water inlet pipe, A cooling water regulating valve is disposed on the cooling water drain pipe.

Further, the pipe is made of 316L stainless steel.

Further, the water level probe at the bottom of the distilled water storage tank is used to detect and determine the water consumption of the entire distilled water distribution system to adjust the water production amount of the distilled water machine. Specifically, when the water consumption of the water point in the workshop is increased, the pump speed is adjusted to ensure the reflux flow rate. Increase the frequency to increase the water supply; as the liquid level probe measures the gradual decrease of the tank level, adjust the feed water valve to adjust the water intake; in order to ensure the normal distillation separation of the equipment and meet the Chinese Pharmacopoeia temperature and conductance of the injection water The requirement is that the influent amount corresponds to a certain proportion of the incoming industrial steam pressure, and the industrial steam pressure probe is used to measure the opening of the industrial steam valve to adjust the pressure of the industrial steam; at the same time, the temperature and conductance of the distilled water of the water producing port are detected, and the cooling is performed. The water regulating valve fine-tunes a relatively constant water production temperature; when the water consumption is reduced, the water inflow and steam intake of the equipment are gradually reduced to reduce the water production amount and adjust the cooling water volume; when there is no water demand in the workshop for a long time, The equipment is operated at the lowest water production until the tank level reaches a high level, and The human-machine interface is set to interval flushing time, so that the high temperature can be flushed to the equipment interval to prevent the growth of bacteria and energy conservation; when the water consumption in the workshop is increased, the water inflow and steam intake of the equipment are gradually increased. The amount of water produced reaches the maximum amount of water produced and the amount of cooling water is adjusted.

Compared with the prior art, the invention has the following beneficial effects: the invention proposes an integrated adjustable water production T-type multi-effect distilled water machine; which ensures that other equipment is frequently activated under the premise of preparing high quality qualified injection water. Energy loss during the stop process, risk is difficult to control and other issues. The integrated design has the advantages of convenient transportation, centralized sewage discharge, clear interface, electrical integrity linkage and good control of the dead pipeline of the coupling part. Innovative improvement and improvement of equipment; well improved quality of injection water preparation and separation control of pyrogens.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the entire structure of the present invention.

Figure 2 is a schematic block diagram of the overall structure of the present invention.

Markings and parts in the drawings: 1-industry steam regulating valve, 2-safety valve, 3-industrial steam inlet pipe, 4-industrial steam pressure probe, 5-first group preheater, 6-first Group steam column, 7-industrial steam condensate drain pipe, 8-second group preheater, 9-second group steam column, 10-third group preheater, 11-third group steam column, 12- Four preheaters, 13-fourth steam column, 14-fifth preheater, 15-fifth steam column, 16-sixth preheater, 17-sixth steam column, 18- Concentrated water discharge port, 19-filter, 20-feed water regulating valve, 21-purified water inlet pipe, 22-built-in heat exchanger, 23-built-in heat exchanger, 24-cooling water inlet pipe, 25- Filter, 26-flow meter, 27-cooling water outlet pipe, 28-cooling water regulating valve, 29-product water temperature conductivity probe, 30-distilled water unqualified water discharge port, 31-inlet valve, 32-distilled water storage tank , 34-transport pump, 35-water node.

As shown in Figure 1-2, the integrated adjustable water production T-type multi-effect distilled water machine is characterized by: three parts: T-type multi-effect distilled water machine, distilled water storage tank and distilled water delivery and distribution system, each part passes through Water pipe connection; the T-type multi-effect distilled water machine comprises 6 sets of heat exchange mechanisms and 1 set of built-in heat exchangers; the six sets of heat exchange mechanisms are cascaded in series through a water pipe; the heat exchange The mechanism comprises an evaporation column, a heat exchanger, a separating device, a condenser, a preheater, a valve, a meter and a control part; the heat exchanger, the separating device and the condenser are arranged inside the evaporator; The built-in heat exchanger is provided with a filter 19 which is formed by two built-in heat exchangers: a built-in heat exchanger 22 and a built-in heat exchanger 23 connected in series through a water conduit, which is provided with The water inlet and the water outlet are provided with a water producing temperature conductivity probe 29 and a distilled water unqualified water discharge port 30; the front end of the distilled water storage tank 32 is provided with an inlet valve 31, which is disposed in the water inlet pipe On, in The bottom of the distilled water storage tank 32 is provided with a tank liquid level probe 33, and a water transfer port of the distilled water storage tank 32 is provided with a transfer pump 34, which is connected to the workshop water node 35 through a pipeline; the transfer pump 34 is provided with a frequency converter; The plant water node 35 is not the end, it is connected to the top water inlet of the distilled water storage tank 32 through a pipe, and the water node 35 is used to form a circuit with the distilled water storage tank 32.

Wherein, the six groups of heat exchange mechanisms respectively include a first group of preheaters 5, a first group of steam columns 6, a second group of preheaters 8, a second group of steam columns 9, and a third group of preheaters 10 a third group of steam columns 11, a fourth group of preheaters 12, a fourth group of steam columns 13, a fifth group of preheaters 14, a fifth group of steam columns 15, a sixth group of preheaters 16, and a sixth group of steam Column 17.

Wherein, the first group of heat exchange mechanisms are provided with an industrial steam inlet pipe 3 and an industrial steam condensate drain pipe 7; an industrial steam regulating valve 1 and a safety valve 2 are disposed on the industrial steam inlet pipe 3; The rear end is provided with a connecting pipe connected to the evaporation column of the first group of heat exchange mechanisms, and an industrial steam pressure probe 4 is disposed on the connecting pipe.

Wherein, the heat exchanger, the separating device and the condenser inside the evaporation column, the condenser is an expansion tube, and the double tube plate is designed without welding; the heat exchanger is provided with water supply Dispensing the disk to promote falling film flashing; the separator comprises a first stage separation, a second stage separation and a third stage separation; wherein the first stage separation is a falling film flash separation, and the second stage separation is a 180 degree reentry The gravity separation, the third stage separation is a hygienic spiral centrifugation.

Wherein, the first group of heat exchange mechanism evaporation columns are provided with a non-condensable gas discharge port and a nozzle.

Wherein, the bottom end of the steam column in the sixth group of heat exchangers is provided with a steam column connected to the first group of heat exchangers to form a loop; and the concentrated water discharge port 18 is disposed on the pipeline. .

Among them, the built-in heat exchanger is provided with a purified water inlet, and is connected to the built-in heat exchanger through the purified water inlet pipe 21; and the purified water inlet pipe 21 is provided with a feed water regulating valve 20.

Wherein, the built-in heat exchanger is provided with a cooling water inlet and a cooling water outlet, and is connected to the built-in heat exchanger through the cooling water inlet pipe 24; and a filter 25 and a flow meter 26 are arranged on the cooling water inlet pipe. A cooling water regulating valve 28 is provided on the cooling water drain pipe 27.

Among them, the pipe is made of 316L stainless steel.

Among them, the water level probe at the bottom of the distilled water storage tank is used to detect and determine the water consumption of the entire distilled water distribution system to adjust the water production amount of the distilled water machine. Specifically, when the water consumption of the water point in the workshop is increased, the pump frequency converter is improved in order to ensure the reflux flow rate. Frequency to increase the amount of water; as the liquid level probe measures the gradual decrease of the tank level, adjust the feed water valve to adjust the water intake; in order to ensure the normal distillation separation of the equipment and meet the Chinese Pharmacopoeia for the temperature and conductance of the injection water It is required to adjust the pressure of the industrial steam by adjusting the opening degree of the industrial steam valve by the industrial steam pressure probe corresponding to a certain proportion of the incoming steam pressure; and simultaneously detecting the temperature and conductance of the distilled water of the production port, passing the cooling water. Adjust the valve to fine-tune a relatively constant water production temperature; when the water consumption is reduced, gradually reduce the water inflow and steam intake of the equipment to reduce the water production and adjust the cooling water volume; when there is no water demand in the workshop for a long time, the equipment Run at the lowest water production until the tank level reaches a high level and can be passed The machine interface is set to interval flushing time, so that the high temperature can be flushed to the equipment interval to prevent the growth of bacteria and energy conservation; when the water consumption in the workshop is increased, the water inflow and steam intake of the equipment are gradually increased to increase the water production. Until the maximum water production is reached and the amount of cooling water is adjusted.

The embodiments described above are merely illustrative of the preferred embodiments of the invention and are not intended to limit the scope of the invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the scope of the present invention. The technical content claimed in the present invention has been fully claimed. It is stated in the claims.

Compared with the prior art, the invention has the following beneficial effects: the invention proposes an integrated adjustable water production T-type multi-effect distilled water machine; which ensures that other equipment is frequently activated under the premise of preparing high quality qualified injection water. Energy loss during the stop process, risk is difficult to control and other issues. The integrated design has the advantages of convenient transportation, centralized sewage discharge, clear interface, electrical integrity linkage and good control of the dead pipeline of the coupling part. Innovative improvement and improvement of equipment; well improved quality of injection water preparation and separation control of pyrogens.

Claims (10)

The integrated adjustable water production T-type multi-effect distilled water machine is characterized in that it comprises: a T-type multi-effect distilled water machine, a distilled water storage tank and a distilled water conveying and distribution system, and the parts are connected by a water pipe; the T The multi-effect distilled water machine comprises 6 sets of heat exchange mechanisms and 1 set of built-in heat exchangers; the 6 sets of heat exchange mechanisms are connected in series by a water conduit; the heat exchange mechanism comprises an evaporation column and a heat exchanger a separating device, a condenser, a preheater, a valve, a meter, and a control portion; the heat exchanger, the separating device, and the condenser are disposed inside the evaporator; and the set of the built-in heat exchanger is disposed There is a filter which is formed by two built-in heat exchangers connected in series through a water conduit, which is provided with a water inlet and a water outlet, and the distilled water outlet is provided with a temperature conductivity probe and a drain valve; The front end of the distilled water storage tank is provided with a water inlet valve, which is arranged on the water inlet pipe, a liquid level probe is arranged at the bottom of the distilled water storage tank, and a transfer pump is arranged at the water outlet of the distilled water storage tank, and the pipeline is arranged through the pipeline It is connected with the water point of the workshop; the transfer pump is provided with a frequency converter; the water point of the workshop is not the end, and the pipeline is connected to the top water inlet of the distilled water storage tank through a pipeline, and the water node and the distilled water storage tank form a loop. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the six sets of heat exchange mechanisms respectively comprise a first group of heat exchange mechanisms and a second group of heat exchange mechanisms, Three sets of heat exchange mechanisms, a fourth set of heat exchange mechanisms, a fifth group of heat exchange mechanisms, and a sixth group of heat exchange mechanisms. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1 or 2, wherein the first group of heat exchange mechanisms are provided with an industrial steam inlet pipe and an industrial steam outlet pipe; An industrial steam regulating valve and a safety valve are arranged on the inlet pipe; a connecting pipe is arranged at the rear end of the safety valve and is connected with the evaporation column of the first group of heat exchange mechanisms, and an industrial steam pressure probe is arranged on the connecting pipe. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the heat exchanger, the separating device and the condenser inside the evaporation column are used by the condenser Expansion tube, the design of the double tube plate, without welding; the heat exchanger is provided with a water supply distribution plate to promote falling film flashing; the separator comprises a first stage separation, a second stage separation and a third stage Separation; wherein the first stage separation is a falling film flash separation, the second stage separation is a 180 degree reentry gravity separation, and the third stage separation is a hygienic spiral centrifugal separation. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1 or 3, wherein the first group of heat exchange mechanism evaporation columns are provided with a non-condensable gas discharge port and a nozzle. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1 or 2, wherein the bottom end of the steam column in the sixth group of heat exchangers is provided with a pipe connected to the first The steam column of the heat exchanger is set to form a circuit; a concentrated water discharge port is arranged on the pipe. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the built-in heat exchanger is provided with a purified water inlet, and is connected to the built-in heat exchanger through the purified water inlet pipe. A feed water regulating valve is disposed on the purified water inlet pipe. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the built-in heat exchanger is provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet pipe and the built-in The heat exchanger is connected; a filter and a flow meter are arranged on the cooling water inlet pipe, and a cooling water regulating valve is arranged on the cooling water drain pipe. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the pipe is made of 316L stainless steel. The integrated adjustable water production T-type multi-effect distilled water machine according to claim 1, wherein the water level of the distilled water distribution tank is used to detect and determine the water consumption of the entire distilled water distribution system to adjust the water production amount of the distilled water machine. Specifically, when the water consumption of the water point in the workshop is increased, in order to ensure the reflux flow rate, the pump frequency converter increases the frequency to increase the water supply amount; as the liquid level probe measures the liquid level of the storage tank gradually, the feed water valve is adjusted to adjust the flow. The amount of water; in order to ensure the normal distillation separation of the equipment and meet the requirements of the Chinese Pharmacopoeia for the temperature and conductance of the water for injection, the inflow of water corresponds to a certain proportion of the industrial steam pressure, measured by the industrial steam pressure probe, control the opening of the industrial steam valve To adjust the pressure of the industrial steam; to detect the temperature and conductance of the distilled water at the production port, to fine-tune a relatively constant water production temperature through the cooling water regulating valve; and to gradually reduce the water inflow and steam intake of the equipment when the water consumption is reduced. To reduce the amount of water produced and adjust the amount of cooling water; when there is no need for water in the workshop for a long time When the equipment is running at the lowest water production level until the tank liquid level reaches a high level shutdown, the interval between the equipment and the flushing time can be set through the man-machine interface to allow the high temperature to flush the equipment intervals to prevent bacterial growth and energy conservation; When the water consumption is increased, the water inflow and steam intake of the equipment are gradually increased to increase the water production amount until the maximum water production amount is reached and the cooling water volume is adjusted.

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