CN210801967U - Drainage mechanism and cold device of doing - Google Patents

Abstract

The utility model discloses a drainage mechanism and cold device of doing, wherein, this drainage mechanism includes: the first connecting piece comprises a water inlet section, a first water outlet section and a second water outlet section; the water inlet of the automatic drain valve is connected with the first water outlet section; a water inlet of the manual drain valve is connected with the second water outlet section; and the filter screen is arranged in the first connecting piece so as to filter the water entering the automatic drain valve. The utility model discloses drainage mechanism, when automatic drain valve overhauls, the manual drain valve drainage of accessible to avoid appearing drainage vacuum phase because of automatic drain valve overhauls. In addition, the manual drain valve can be opened periodically for draining water, so that impurities filtered by the filter screen are discharged through the drainage passage of the manual drain valve, and the filter screen is prevented from being blocked by the impurities.

Description

Drainage mechanism and cold device of doing

Technical Field

The utility model relates to a drainage mechanism technical field especially relates to a drainage mechanism and applied this drainage mechanism's cold device of doing.

Background

The drain valve is one of important parts on the refrigeration dryer and is used for timely draining condensed water accumulated in the heat exchanger. In case the drain valve on the freeze dryer breaks down, can lead to the unable in time discharge of condensate water in the freeze dryer, and then can lead to: (1) the exhaust gas contains liquid water, so that the cold dryer loses working significance; (2) liquid water in the heat exchanger absorbs a large amount of cold energy, so that the load of the cold dryer is increased, and high-temperature trip is caused. Therefore, the stability of the drain valve is improved, the failure rate of the drain valve is reduced, and the method has important significance for improving the cold drying effect of the cold drying machine and reducing the failure rate of the cold drying machine.

The drainage valve commonly used in the existing refrigeration dryer is an automatic drainage valve which has the advantages of adjustable drainage time and drainage time interval. However, the automatic drain valve is easy to break down and needs to be repaired regularly, and the cold drying machine cannot run during the fault and the repair period, so that the cold drying machine has a vacuum period.

In addition, after the automatic drain valve in the prior art is powered on, the valve core of the automatic drain valve rises to open the drain passage, so that condensed water is drained, and after the automatic drain valve is powered off, the valve core descends under the gravity of the valve core to block the drain passage, and the drainage is suspended. For avoiding the case of automatic drain valve to be silted up by impurity and unable normal open and close, before the comdenstion water got into automatic drain valve from the water inlet, generally need filter through the filter screen, most impurity in the filter screen can the filtering comdenstion water, but impurity can't discharge after being filtered by the filter screen, can block up and can block up the filter screen in the filter screen side of intaking for long-term gathering can block up the filter screen, makes the displacement reduce or even unable drainage, needs frequent change or clearance filter screen.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that exists among the prior art, the utility model provides a drainage mechanism and applied this drainage mechanism's cold device of doing makes this drainage mechanism still can guarantee the function of normal drainage when overhauing to can avoid the filter screen to become silted up by impurity.

In order to achieve the above object, the utility model provides a drainage mechanism, it includes:

the first connecting piece comprises a water inlet section, a first water outlet section and a second water outlet section;

the water inlet of the automatic drain valve is connected with the first water outlet section;

a water inlet of the manual drain valve is connected with the second water outlet section;

and the filter screen is arranged in the first connecting piece so as to filter the water entering the automatic drain valve.

In some embodiments, the filter screen is disposed at a junction of the water inlet section and the first water outlet section.

In some embodiments, the filter screen is a tubular filter screen, one end of the tubular filter screen extends into the water inlet section, the other end of the tubular filter screen extends into the second water outlet section, a pipe wall of the tubular filter screen blocks a water inlet of the first water outlet section, and a pipe cavity of the tubular filter screen communicates the water inlet section and the second water outlet section.

In some embodiments, the first connector is T-shaped, the water inlet section and the second water outlet section are arranged along a straight line, and the first water outlet section is perpendicular to the water inlet section and the second water outlet section.

In some embodiments, the manual drain valve is connected with the second water outlet section through a connector, and a containing cavity for containing impurities is formed in the connector.

In some embodiments, the connector is L-shaped.

In some embodiments, the drain mechanism further comprises a second connecting member, the second connecting member comprises two water inlets and a water outlet, one water inlet of the second connecting member is connected with the water outlet of the automatic drain valve, and the other water inlet of the second connecting member is connected with the water outlet of the manual drain valve.

In some embodiments, the drain mechanism further comprises a drain pipe connected to the drain opening of the second connector.

In some embodiments, the drain comprises a helical pipe section.

The embodiment of the utility model provides a cold device of doing is still provided, it includes the cold unit of doing and as above drainage mechanism, the outlet of cold unit with first connecting piece the section of intaking is connected.

Compared with the prior art, the drainage mechanism provided by the embodiment of the utility model is connected with the automatic drainage valve and the manual drainage valve in parallel through the first connecting piece, under the normal use state, the manual drainage valve is closed, the automatic drainage valve can be used for draining water regularly, for example, the automatic drainage valve can be set to be drainage at regular time, or the automatic drainage valve can be set to be drainage at a specified time interval; when the automatic drain valve is overhauled, water can be drained through the manual drain valve, so that the drainage vacuum period caused by overhauling of the automatic drain valve is avoided. In addition, because the automatic drain valve is easy to be clogged by impurities, and the manual drain valve is not easy to be clogged by impurities, the filter screen only filters water entering the automatic drain valve to avoid the automatic drain valve from being clogged by the impurities, the water entering the manual drain valve is not filtered, the manual drain valve can be opened periodically to drain water, and impurities filtered by the filter screen are discharged through a drain passage of the manual drain valve to avoid the filter screen from being blocked by the impurities.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic front view of a drainage mechanism according to the present invention;

fig. 2 is a schematic side view of a drainage mechanism according to the present invention;

fig. 3 is a sectional view of the drainage mechanism in fig. 2 taken along the direction a-a.

Reference numerals:

1-a first connector; 2, a water inlet section; 3-a first water outlet section; 4-a second water outlet section; 5, automatic drain valve; 6-manual drain valve; 7-filtering with a filter screen; 8-a connector; 9-an accommodation cavity; 10-a second connecting link; 11-a drain pipe; 12-a helical pipe section; 13-connecting tube.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1 to 3, an embodiment of the present invention provides a drainage mechanism, which can be applied to a freeze drying device or other devices for draining waste water such as condensed water. The utility model discloses drainage mechanism includes: the automatic drain valve comprises a first connecting piece 1, an automatic drain valve 5, a manual drain valve 6 and a filter screen 7; the first connecting piece 1 comprises a water inlet section 2, a first water outlet section 3 and a second water outlet section 4; the water inlet of the automatic drain valve 5 is connected with the first water outlet section 3, the water inlet of the manual drain valve 6 is connected with the second water outlet section 4, and the automatic drain valve 5 and the manual drain valve 6 are closed or opened as required; therefore, condensed water discharged by the cold drying unit enters the water discharging mechanism through the water inlet section 2, is conveyed to the automatic water discharging valve 5 through the first water outlet section 3, and is conveyed to the manual water discharging valve 6 through the second water outlet section 4; a strainer 7 is provided in the first connecting member 1 to filter the water delivered to the automatic drain valve 5.

By adopting the drainage mechanism with the structure, the automatic drainage valve 5 and the manual drainage valve 6 are connected in parallel through the first connecting piece 1, the manual drainage valve 6 is closed in a normal use state, and drainage can be performed regularly through the automatic drainage valve 5, for example, the automatic drainage valve 5 can be set to drain water at regular time, or the automatic drainage valve 5 can be set to drain water based on a specified time interval; when the automatic drain valve 5 needs to be overhauled, the automatic drain valve 5 is closed, and the manual drain valve 6 is opened, so that water is drained through the manual drain valve 6, and the drainage vacuum period is prevented from occurring due to the overhauling of the automatic drain valve 5.

Further, since the internal structure of the automatic drain valve 5 is small, the effect of draining water is easily affected due to the clogging of impurities, and the manual drain valve 6 is not easily clogged by impurities, only the water entering the automatic drain valve 5 is filtered and the water entering the manual drain valve 6 is not filtered by arranging the filter screen 7 at a designated position. And, the manual drain valve 6 is opened periodically to drain water, so that the impurities filtered by the filter screen 7 are discharged through the drain passage of the manual drain valve 6, and the filter screen 7 is prevented from being blocked by the impurities. In the specific implementation process, the automatic drain valve 5 can adopt an electromagnetic valve, an electric valve, a pneumatic valve or a hydraulic valve and the like, and the manual drain valve 6 can adopt a ball valve, a butterfly valve or a stop valve and the like.

As shown in fig. 3, in some embodiments, in order to filter only the water entering the automatic drain valve 5, the filter screen 7 may be disposed at a connection position of the water inlet section 2 and the first water outlet section 3, so as to prevent impurities from accumulating in the first water outlet section 3, so that after the automatic drain valve 5 is closed and the manual drain valve 6 is opened, the water inlet section 2, the second water outlet section 4 and the manual drain valve 6 form a drain passage, and the impurities filtered around the filter screen 7 can be effectively discharged in a manner of flushing the surface of the filter screen 7 with the water entering the drain mechanism. Preferably, the filter screen 7 can be a circular or arc-shaped filter screen, and the filter screen 7 can be disposed at the water inlet of the first water outlet section 3, so that impurities can be blocked outside the first water outlet section 3, and the impurities are prevented from accumulating in the first water outlet section 3.

In some embodiments, in order to improve the filtering effect and facilitate the discharge of the filtered impurities, the filter screen 7 may be a tubular filter screen, one end of the filter screen 7 extends into the water inlet section 2, the other end of the filter screen 7 extends into the second water outlet section 4, and the wall of the filter screen 7 blocks the water inlet of the first water outlet section 3 and communicates the water inlet section 2 and the second water outlet section 4 through the tube cavity. When water is discharged through the automatic water discharge valve 5, the water enters the first water outlet section 3 after being filtered by the pipe wall of the filter screen 7 and then is discharged through the automatic water discharge valve 5, and impurities are left on the inner wall of the filter screen 7 or enter the second water outlet section 4; when discharging water through the manual drain valve 6, water enters the second water outlet section 4 through the tube cavity of the filter screen 7, and impurities can be discharged. When realizing the 3 purposes of the first play water section of blocking, through the ingenious intercommunication of lumen the section of intaking 2 and the second play water section 4 to simple structure, simple to operate. Of course, the screen 7 is not limited to a tubular screen, but may also be a circular plate screen, for example, or a screen 7 adapted to the cross-sectional shape of the first outlet section 3.

In some embodiments, the first connecting member 1 may have a T-shape, wherein the water inlet section 2 and the second water outlet section 4 are arranged along a straight line, and the first water outlet section 3 is perpendicular to the water inlet section 2 and the second water outlet section 4. Like this, in the drainage process through automatic water discharge valve 5, the water flow has the trend of flowing to second play water section 4 after 2 inflow of intaking of inertia effect rivers, has the scouring action to the adnexed impurity of inner wall of filter screen 7, and partial impurity can move to second play water section 4 direction and finally deposit in second play water section 4 or manual drain valve 6 under inertia effect before, can reduce the filter pressure of filter screen 7, reduces the attached volume of impurity on the filter screen 7. And because the tiny impurity of part accessible filter screen 7, such structure can also reduce the tiny impurity of this part and get into the volume of automatic drain valve 5, is favorable to reducing the maintenance cycle of automatic drain valve 5, prolongs the life of automatic drain valve 5. In the process of draining water through the manual drain valve 6, water flows into the second water outlet section 4 through the water inlet section 2 without changing the flowing direction, and the water flow resistance is small, so that the impurity is discharged completely. It should be noted that the first connecting member 1 may be a Y-shaped connecting member, for example.

In some embodiments, the manual drain valve 6 is connected to the second water outlet section 4 via a connector 8, and a receiving cavity 9 for receiving impurities is formed in the connector 8. So, impurity enters into water section 2 back along with rivers, can go out water section 4 directions removal to the second under the inertia to final sediment is in holding chamber 9, avoids impurity to adhere to on filter screen 7, in order to avoid blockking up filter screen 7. Specifically, the connector 8 may be L-shaped, one end of which is connected to the second water outlet section 4, and the other end of which is connected to the manual drain valve 6. As a preferred embodiment, the manual drain valve 6 and the connection head 8 may be of an integral structure.

In some embodiments, as shown in fig. 1 and 3, the drain mechanism further comprises a second connecting member 10, the second connecting member 10 comprises two water inlets and a water outlet, one water inlet of the second connecting member 10 is connected with the water outlet of the automatic drain valve 5, and the other water inlet of the second connecting member 10 is connected with the water outlet of the manual drain valve 6. The water outlets of the automatic water discharge valve 5 and the manual water discharge valve 6 are gathered through the second connecting piece 10, so that the number of the water outlets of the water discharge mechanism can be reduced, and the whole water discharge mechanism is simpler. In the specific implementation process, the automatic drain valve 5 and the manual drain valve 6 are both directly connected with the second connecting piece 10, or can be connected with the second connecting piece 10 through a connecting pipe 13. For example, the automatic drain valve 5 may be configured to be connected to the second connector 10 through the connection pipe 13, and the manual drain valve 6 may be directly connected to the second connector 10.

As shown in fig. 1 and 2, in some embodiments, the drainage mechanism may further include a drainage pipe 11, and the drainage pipe 11 is connected to the drainage port of the second connector 10. The drainage of the drainage means can be brought to a predetermined position by means of the drainage pipe 11, for example, on the basis of a container or a sewer, avoiding scattering. As a preferred embodiment, the drain pipe 11 may include a spiral pipe section 12, and the flow rate of the drain water can be reduced by passing the spiral pipe section 12.

As shown in fig. 1, the drainage mechanism according to the embodiment of the present invention operates as follows:

under the normal use state, can close manual drain valve 6, set up automatic drain valve 5 into automatic drainage, if can set up automatic drain valve 6 to once discharge water once every interval hour, perhaps automatic drain valve 6 automatic drainage when the condensate water volume reaches the default in the freeze-drying unit.

When the automatic drain valve 5 is overhauled, the manual drain valve 6 can be opened manually by an operator to drain water, so that the continuous operation of the freeze drying unit can be ensured, and the drainage vacuum period caused by the overhauling of the automatic drain valve 5 is avoided.

Since the automatic drain valve 5 is easily clogged by the foreign substances and the manual drain valve 6 is not easily clogged by the foreign substances, the filter 7 filters only the water introduced into the automatic drain valve 5 but not the water introduced into the manual drain valve 6. The manual drain valve 6 can be opened periodically to drain water, so that impurities filtered by the filter screen 7 can be discharged through the drain passage of the manual drain valve 6, and the filter screen 7 is prevented from being blocked by the impurities.

The embodiment of the utility model provides a cold device of doing is still provided, it includes the cold unit of doing and as above drainage mechanism, the outlet of cold unit of doing is connected with the section 2 of intaking of first connecting piece 1. The comdenstion water in the freeze-drying unit flows into drainage mechanism's first connecting piece 1 through its outlet, under normal conditions, regularly discharges through automatic drain valve 5, overhauls at automatic drain valve 5 or when for discharge impurity, and the drainage vacuum period can be avoided appearing in the freeze-drying unit to the discharge of accessible manual drain valve 6. And because filter screen 7 is difficult to block up, the tiny impurity that gets into automatic drain valve 5 is also less, and automatic drain valve 5 is difficult to silt up, so, this cold dry device's maintenance cycle is longer, and use cost is lower, and user experience is better.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims (10)

1. A drainage mechanism, comprising:

the first connecting piece comprises a water inlet section, a first water outlet section and a second water outlet section;

the water inlet of the automatic drain valve is connected with the first water outlet section;

a water inlet of the manual drain valve is connected with the second water outlet section;

and the filter screen is arranged in the first connecting piece so as to filter the water entering the automatic drain valve.

2. The drain mechanism of claim 1, wherein the screen is disposed at a junction of the water inlet section and the first water outlet section.

3. The drainage mechanism of claim 2, wherein the filter screen is a tubular filter screen, one end of the tubular filter screen extends into the water inlet section, the other end of the tubular filter screen extends into the second water outlet section, a pipe wall of the tubular filter screen blocks a water inlet of the first water outlet section, and a pipe cavity of the tubular filter screen communicates with the water inlet section and the second water outlet section.

4. The drain mechanism of claim 1, wherein the first connector is T-shaped, the inlet section and the second outlet section are arranged along a straight line, and the first outlet section is perpendicular to the inlet section and the second outlet section.

5. A drainage mechanism according to any one of claims 1 to 4, wherein the manual drain valve is connected to the second outlet section via a connector, and a housing chamber for housing impurities is formed in the connector.

6. The drain mechanism of claim 5, wherein the connector is L-shaped.

7. The drain mechanism according to claim 1, further comprising a second connecting member, wherein the second connecting member comprises two water inlets and a water outlet, one water inlet of the second connecting member is connected to the water outlet of the automatic drain valve, and the other water inlet of the second connecting member is connected to the water outlet of the manual drain valve.

8. The drain mechanism of claim 7, further comprising a drain tube connected to the drain opening of the second connector.

9. The drain mechanism of claim 8, wherein the drain pipe comprises a helical pipe segment.

10. A freeze dryer apparatus comprising a freeze dryer unit and a drainage mechanism as claimed in any one of claims 1 to 9, the drainage outlet of the freeze dryer unit being connected to the water inlet section of the first connector.

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