Samplers and Circulators

Abstract

The present invention relates to a sampler and a circulation device, wherein the sampler comprises a shell and a circulation pipe. The interior of the shell is hollow. A conductivity cell is arranged in the shell. The shell comprises a top and a bottom arranged opposite to each other. The top is used to pass pure steam or condensed water formed by pure steam. The conductivity cell faces the top and is used to receive the condensed water. A conductivity probe is arranged in the conductivity cell. The starting end of the circulation pipe is connected to the bottom of the shell. The end of the circulation pipe is used to discharge the condensed water in the shell. The circulation device can avoid the situation in which the conductivity probe monitors the conductivity of the residual condensed water during the initial production or circulation stage of pure steam, and the value exceeds the set value, causing the device to alarm. Moreover, the stable conductivity value of the condensed water formed by pure steam can be read in a very short time, thereby ensuring the accuracy of the conductivity test of the condensed water and better representing the purity of the pure steam.

Description

Technical Field

[0001] The invention relates to the technical field of pure steam monitoring and sampling, in particular to a sampler and a circulation device. Background Art

[0002] In the pharmaceutical production process, pure steam is also called clean steam or high-quality steam. The condensed water formed by pure steam needs to meet the requirements of the Chinese Pharmacopoeia for water for injection. Pure steam is mainly prepared by a pure steam generator. The main function of a pure steam generator is to continuously and stably distill raw water into pure steam that meets the requirements of the Pharmacopoeia.

[0003] The conductivity of pure steam is obtained through monitoring and sampling, and is used as data to judge the quality of pure steam. Pure steam is first condensed in the sampling condenser to form condensed water, which then flows into the sampler, and the condensed water is monitored and sampled in the sampler. Since the interior of the sampler is a large space cavity, the conductivity probe is directly set in the large space cavity to perform real-time conductivity monitoring. The sampling valve is set on the condensed water outflow pipe for offline sampling and detection. However, if the conductivity probe is directly set in the large space cavity, during the initial production or circulation stage of pure steam, the condensed water remaining in the large space cavity cannot be automatically discharged, and the conductivity will exceed the set standard value (the maximum value of the conductivity specified in the Chinese Pharmacopoeia is the set standard value), causing the equipment to alarm. Moreover, the condensed water flows slowly in the large space cavity, the condensed water is replaced slowly, and the monitored conductivity has errors, which cannot well characterize the purity of pure steam. Summary of the invention

[0004] Based on this, it is necessary to provide a sampler and a circulation device to address the above technical problems, so as to avoid the situation in which the conductivity probe monitors the conductivity of the residual condensed water and its value exceeds the set standard value during the initial production or circulation stage of pure steam, thereby causing the equipment to alarm. In addition, the stable conductivity value of the condensed water formed by pure steam can be read in a very short time, thereby ensuring the accuracy of the conductivity test of the condensed water and better characterizing the purity of the pure steam.

[0005] A sampler comprising:

[0006] A shell, wherein the interior of the shell is hollow, a conductivity cell is arranged in the shell, the shell comprises a top and a bottom arranged opposite to each other, the top is used to pass pure steam or condensed water formed by pure steam; the conductivity cell faces the top to receive the condensed water, and a conductivity probe is arranged in the conductivity cell;

[0007] A circulation pipe, wherein the starting end of the circulation pipe is connected to the bottom of the shell, and the end of the circulation pipe is used to discharge the condensed water in the shell.

[0008] The technical solution is further described below:

[0009] In one of the embodiments, the sampler further includes a sampling valve, which is disposed at the bottom of the shell and is used to discharge condensed water inside the shell.

[0010] In one of the embodiments, a bottom cover is provided in the shell, the bottom cover is provided at the bottom, a first through hole is opened on the bottom cover, and the starting end of the circulation pipe is connected to the interior of the shell through the first through hole.

[0011] In one of the embodiments, a sealing guide pad is provided in the shell, and the sealing guide pad is attached to the bottom of the bottom cover. A guide hole is opened on the sealing guide pad, and the guide hole is respectively connected with the first through hole and the starting end of the circulation pipe. The condensed water in the shell flows into the circulation pipe through the first through hole and the guide hole in turn.

[0012] In one of the embodiments, the distance from the conductivity cell to the top is smaller than the distance from the conductivity cell to the bottom, a drainage hole is provided on the bottom surface of the conductivity cell, and the flow rate of the drainage hole is smaller than the flow rate of the condensed water introduced from the top.

[0013] In one of the embodiments, the conductivity cell is an L-shaped water tank, and a water inlet is provided at the end of the L-shaped water tank. The water inlet is arranged toward the top of the shell to receive the condensed water.

[0014] In one embodiment, a first end cover and a second end cover are provided on the top of the shell, the first end cover and the second end cover are spaced apart, one side of the second end cover is arranged toward the conductivity cell, and the other side of the second end cover is arranged toward the first end cover, the gap between the first end cover and the second end cover forms a condensate buffer chamber, and the end of the circulation pipe is connected to the condensate buffer chamber.

[0015] In one of the embodiments, a condensate outlet is provided on the first end cover or the side wall of the condensate buffer chamber, and the condensate outlet is connected to the condensate buffer chamber. The condensate is discharged from the sampler in sequence through the end of the circulation pipe, the condensate buffer chamber and the condensate outlet.

[0016] In one of the embodiments, a first exhaust hole is further provided on the second end cover, and the first exhaust hole is connected with the condensed water buffer chamber and the interior of the shell.

[0017] A circulation device comprises a pure steam condenser and the sampler described in any one of the above embodiments, wherein the pure steam condenser is arranged at the top of the shell, and a drainage tube is provided at one end of the pure steam condenser facing the sampler, and the drainage tube sequentially passes through a first end cover and a second end cover of the sampler and is inserted into the bottom wall of the conductivity cell.

[0018] The above sampler and circulation device have at least the following beneficial effects:

[0019] The sampler provided in the present embodiment is provided with a conductivity cell. When the circulation device is turned on when the circulation device has not been used for a long time, pure steam can be introduced into the sampler first, and the pure steam flows from the top to the bottom of the sampler, and then discharged through the end of the circulation pipe. In the process of introducing pure steam, the pure steam can blow out the residual condensed water in the shell of the sampler, so that the condensed water is discharged through the circulation pipe, thereby avoiding the breeding of microorganisms in the conductivity cell and the residual condensed water in the shell due to long-term shutdown. At the same time, by using pure steam to purge the residual condensed water in the shell, it is avoided that the conductivity probe monitors the conductivity of the residual condensed water and causes the equipment to alarm.

[0020] The working process of the circulation device is as follows: first, condensed water formed by pure steam is introduced from the top of the sampler, and the condensed water falls into the conductivity cell. When the conductivity cell is full, the condensed water will overflow into the inside of the shell until the inside of the shell is full of condensed water; then the condensed water continues to be introduced, and under the action of water pressure, the condensed water inside the shell enters the beginning of the circulation pipe from the bottom of the shell, and the condensed water is discharged from the end of the circulation pipe. In the above process, since the capacity of the conductivity cell is significantly smaller than the internal space of the shell, the condensed water can quickly fill the conductivity cell and overflow the conductivity cell, so that the condensed water in the conductivity cell is replaced quickly, ensuring that the monitored condensed water conductivity can well represent the purity of pure steam. In addition, the conductivity cell can be filled with condensed water in a shorter time, so that the conductivity probe can obtain a stable conductivity reading in a shorter time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1A schematic diagram of the internal structure of a sampler provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 The schematic diagram of the cross-sectional structure of the sampler along the AA line is shown;

[0025] Figure 3 A schematic structural diagram of a sealing guide pad provided in one embodiment of the present invention.

[0026] Explanation of the reference numerals: 100, sampler; 110, shell; 111, top; 112, bottom; 120, conductivity cell; 123, drain hole; 121, water inlet; 122, conductivity probe; 130, circulation pipe; 131, starting end; 132, end; 140, sampling valve; 150, bottom cover; 151, first through hole; 160, sealing guide pad; 161, guide hole; 162, screw; 170, first end cover; 171, condensate outlet; 180, second end cover; 181, first exhaust hole; 190, condensate buffer chamber; 210, drainage pipe. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] The present embodiment provides a sampler and a circulation device, which have the advantages of avoiding the situation in which the conductivity probe monitors the conductivity of the residual condensed water and its value exceeds the set standard value during the initial production or circulation stage of pure steam, thereby causing an equipment alarm. In addition, the stable conductivity value of the condensed water formed by pure steam can be read in a very short time, thereby ensuring the accuracy of the conductivity test of the condensed water and better characterizing the purity of the pure steam. This will be described in detail below in conjunction with the accompanying drawings.

[0029] In one embodiment, see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the internal structure of a sampler provided by an embodiment of the present invention is shown; Figure 2 for Figure 1The sampler shown is a schematic diagram of the cross-sectional structure along the AA line. A sampler 100 includes a shell 110 and a circulation pipe 130. The interior of the shell 110 is hollow. A conductivity cell 120 is arranged in the shell 110. The shell 110 includes a top 111 and a bottom 112 arranged opposite to each other. The top 111 is used to pass pure steam or condensed water formed by pure steam. The conductivity cell 120 is used to receive condensed water facing the top 111 of the shell 110. A conductivity probe 122 is arranged in the conductivity cell 120. The starting end 131 of the circulation pipe 130 is connected to the bottom 112 of the shell 110, and the end 132 of the circulation pipe 130 is used to discharge the condensed water in the shell 110. Specifically, the circulation pipe 130 can be arranged inside the shell 110, or it can be arranged outside the shell 110, which is not specifically limited here.

[0030] The sampler 100 provided in this embodiment is provided with a conductivity cell 120. When the circulation device is turned on when the circulation device has not been used for a long time, pure steam can be introduced into the sampler 100 first, and the pure steam flows from the top 111 of the sampler 100 to the bottom 112, and then discharged through the end 132 of the circulation pipe 130. In the process of introducing pure steam, the pure steam can purge the residual condensed water in the shell 110 of the sampler 100, so that the condensed water is discharged through the circulation pipe 130, thereby preventing the residual condensed water in the conductivity cell 120 and the shell 110 from breeding microorganisms due to long-term shutdown. At the same time, by using pure steam to purge the residual condensed water in the shell 110, it is avoided that the conductivity probe 122 monitors the conductivity of the residual condensed water and causes the device to alarm.

[0031] The working process of the circulation device is as follows: first, condensed water formed by pure steam is introduced from the top 111 of the sampler 100, and the condensed water falls into the conductivity cell 120. When the conductivity cell 120 is full, the condensed water will overflow into the interior of the shell 110 until the interior of the shell 110 is full of condensed water; then the condensed water is continuously introduced, and under the action of water pressure, the condensed water inside the shell 110 enters the starting end 131 of the circulation pipe 130 from the bottom 112 of the shell 110, and the condensed water is discharged from the end 132 of the circulation pipe 130. In the above process, since the capacity of the conductivity cell 120 is significantly smaller than the internal space of the shell 110, the condensed water can quickly fill the conductivity cell 120 and overflow the conductivity cell 120, so that the condensed water in the conductivity cell 120 is replaced quickly, ensuring that the monitored condensed water conductivity can well represent the purity of the pure steam. In addition, the conductivity cell 120 can be filled with condensed water in a shorter time, so that the conductivity probe 122 can obtain a stable conductivity reading in a shorter time.

[0032] In one embodiment, see Figure 1 and Figure 2, the sampler 100 also includes a sampling valve 140. The sampling valve 140 is arranged at the bottom 112 of the shell 110 to discharge the condensed water inside the shell 110. The sampling valve 140 has two functions: first, after the condensed water fills the inside of the shell 110, if it is necessary to sample and test the condensed water, the condensed water can be sampled by opening the sampling valve 140; second, when the circulation device is not used for a long time, the residual water inside the shell 110 can also be emptied by opening the sampling valve 140 to avoid the growth of bacteria. Specifically, when the circulation device is turned on when the circulation device has not been used for a long time, pure steam can be first introduced into the sampler 100, and the pure steam flows from the top 111 to the bottom 112 of the sampler 100, and then discharged through the sampling valve 140 (it can also be discharged through the end 132 of the circulation pipe 130). During the process of introducing pure steam, the pure steam can purge the residual condensed water in the shell 110 of the sampler 100, so that the condensed water is discharged through the sampling valve 140 (or the circulation pipe 130), thereby preventing the residual condensed water in the conductivity cell 120 and the shell 110 from breeding microorganisms due to long-term shutdown. At the same time, by using pure steam to purge the residual condensed water in the shell 110, it is avoided that the conductivity probe 122 monitors the conductivity of the residual condensed water and causes the device to alarm. Therefore, setting the sampling valve 140 at the bottom 112 of the shell 110, that is, the lowest point of the sampler 100, is not only convenient for sampling, but also convenient for draining the condensed water inside the shell 110, and preventing the sampler 100 from breeding bacteria.

[0033] In one embodiment, see Figure 1 and Figure 2 , a bottom cover 150 is provided in the housing 110. The bottom cover 150 is provided at the bottom 112 of the housing 110. A first through hole 151 is provided on the bottom cover 150. The starting end 131 of the circulation pipe 130 is connected to the inside of the housing 110 through the first through hole 151. Specifically, condensed water inside the housing 110 can flow to the starting end 131 of the circulation pipe 130 through the first through hole 151, and then be discharged through the end 132 of the circulation pipe 130.

[0034] Further, see Figures 1 to 3, a sealing guide pad 160 is provided in the shell 110. The sealing guide pad 160 is attached to the bottom of the bottom cover 150. A guide hole 161 is provided on the sealing guide pad 160. The guide hole 161 is respectively connected to the first through hole 151 and the starting end 131 of the circulation pipe 130. The condensed water in the shell 110 flows into the circulation pipe 130 through the first through hole 151 and the guide hole 161 in turn. Specifically, the sampling valve 140 is arranged below the bottom cover 150, and the sealing guide pad 160 is attached to the side of the bottom cover 150 facing the sampling valve 140. The sealing guide pad 160 can be fixed to the bottom cover 150 by screws 162, and the sealing guide pad 160 is made of polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE). The guide hole 161 is in the shape of a long strip hole, and the guide hole 161 is connected to the first through hole 151 and the starting end 131 of the circulation pipe 130 respectively, and the condensed water in the housing 110 can flow into the circulation pipe 130 through the first through hole 151 and the guide hole 161 in sequence. The sealing guide pad 160 plays the role of guiding the condensed water into the circulation pipe 130, and also plays the role of preventing the leakage of the condensed water and sealing the bottom cover 150. In addition, the sampling valve 140 is also connected to the guide hole 161. The user opens the sampling valve 140, so that the sampling valve 140 and the guide hole 161 are connected, and the condensed water can flow to the sampling valve 140 through the first through hole 151 and the guide hole 161 in sequence for sampling.

[0035] In one embodiment, see Figure 1 and Figure 2 , the distance between the conductivity cell 120 and the top 111 of the housing 110 is smaller than the distance between the conductivity cell 120 and the bottom 112 of the housing 110. A drainage hole 123 is provided on the bottom wall of the conductivity cell 120. The flow rate of the drainage hole 123 is smaller than the flow rate of the condensed water introduced from the top 111. In this way, when the residual condensed water in the sampler 100 needs to be drained, the condensed water in the conductivity cell 120 can be completely drained from the drainage hole 123. The provision of the drainage hole 123 ensures that the condensed water in the conductivity cell 120 can be drained, thereby preventing the growth of microorganisms in the conductivity cell 120.

[0036] In one embodiment, see Figure 1 and Figure 2 , the conductivity cell 120 is an L-shaped water storage tank. A water inlet 121 is provided at the end of the L-shaped water storage tank. The water inlet 121 is arranged toward the top 111 of the housing 110 for receiving condensed water. Specifically, the conductivity probe 122 can be arranged on the outer wall of the sampler 100, and one end of the conductivity probe 122 extends into the bottom wall of the conductivity cell 120. Since the conductivity cell 120 is an L-shaped water storage tank, the water at the bottom 112 of the L-shaped water storage tank can be in a relatively stable state, which is convenient for the conductivity probe 122 to measure a stable conductivity value.

[0037] In one embodiment, see Figure 1 and Figure 2 , a first end cover 170 and a second end cover 180 are provided at the top 111 of the housing 110. The first end cover 170 and the second end cover 180 are spaced apart. One side of the second end cover 180 is disposed toward the conductivity cell 120. The other side of the second end cover 180 is disposed toward the first end cover 170. A condensate buffer chamber 190 is formed in the gap between the first end cover 170 and the second end cover 180. The end 132 of the circulation pipe 130 is connected to the condensate buffer chamber 190. Specifically, the first end cover 170 and the second end cover 180 are spaced apart in parallel. In this way, when condensed water is introduced into the shell 110, the condensed water first fills the conductivity cell 120. When the conductivity cell 120 is full, the condensed water will overflow into the shell 110 until the shell 110 is filled with condensed water. Then, the condensed water continues to be introduced into the sampler 100. Under the action of water pressure, the condensed water inside the shell 110 enters the starting end 131 of the circulation pipe 130 from the bottom 112 of the shell 110, and the condensed water flows into the condensed water buffer chamber 190 from the end 132 of the circulation pipe 130 for temporary storage.

[0038] For further information, see Figure 1 and Figure 2 A condensate outlet 171 is provided on the side wall of the first end cover 170 or the condensate buffer chamber 190. The condensate outlet 171 is connected to the condensate buffer chamber 190. The condensate is discharged from the sampler 100 through the end 132 of the circulation pipe 130, the condensate buffer chamber 190 and the condensate outlet 171 in sequence. Specifically, the condensate inside the housing 110 enters the starting end 131 of the circulation pipe 130 from the bottom 112 of the housing 110, and the condensate flows into the condensate buffer chamber 190 from the end 132 of the circulation pipe 130, and then is discharged from the condensate outlet 171.

[0039] In one embodiment, see Figure 1 and Figure 2 , the second end cover 180 is also provided with a first exhaust hole 181, and the first exhaust hole 181 is connected to the condensed water buffer chamber 190 and the interior of the shell 110. Specifically, the depth direction of the first exhaust hole 181 is the same as the direction from the first end cover 170 to the second end cover 180. When the circulation device is running for a long time, condensed water is continuously introduced into the sampler 100, and a small amount of non-condensable gas formed by pure steam is also mixed in the condensed water. These non-condensable gases finally gather at the top 111 of the shell 110, and enter the condensed water buffer chamber 190 through the first exhaust hole 181, and then are discharged from the condensed water outlet 171 connected to the condensed water buffer chamber 190. The discharge of non-condensable gases is conducive to avoiding large deviations in the measured condensed water conductivity values ​​and improving the monitoring accuracy of the condensed water conductivity.

[0040] In one embodiment, see Figure 1 and Figure 2 A circulation device includes a pure steam condenser (not shown) and the sampler 100 described in any one of the above embodiments. The pure steam condenser is arranged at the top 111 of the housing 110, and a drainage pipe 210 is arranged at one end of the pure steam condenser facing the sampler 100. The drainage pipe 210 sequentially passes through the first end cover 170 and the second end cover 180 of the sampler 100 and is inserted into the bottom wall of the conductivity cell 120. The pure steam condenser condenses the pure steam into condensed water, and the drainage pipe 210 is inserted into the water inlet 121 of the conductivity cell 120, and the condensed water enters the conductivity cell 120 through the drainage pipe 210. The flow rate of the drainage pipe 210 is greater than the flow rate of the drainage hole 123, ensuring that when the circulation device is operating normally, most of the condensed water can overflow from the water inlet 121 of the conductivity cell 120 to the inside of the shell 110 until the inside of the shell 110 is filled with condensed water; then the condensed water continues to be introduced into the sampler 100, and the condensed water inside the shell 110 enters the starting end 131 of the circulation pipe 130 from the bottom 112 of the shell 110 under the action of water pressure, and the condensed water is discharged from the end 132 of the circulation pipe 130. In the above process, since the capacity of the conductivity cell 120 is significantly smaller than the internal space of the shell 110, the condensed water can quickly fill the conductivity cell 120 and overflow the conductivity cell 120, so that the condensed water in the conductivity cell 120 is replaced quickly, ensuring that the monitored condensed water conductivity can well represent the purity of pure steam. In addition, the conductivity cell 120 can be filled with condensed water in a relatively short time, so that the conductivity probe 122 can obtain a stable reading in a relatively short time. Since the circulation device includes the sampler 100 described above, the technical effect is brought by the sampler 100, and the beneficial effects have already included the beneficial effects of the sampler 100, so they will not be repeated here.

[0041] The sampler 100 provided in this embodiment can prevent the condensed water remaining in the conductivity cell 120 and the housing 110 from breeding microorganisms due to long-term shutdown. At the same time, by using pure steam to purge the residual condensed water inside the housing 110, it is prevented that the conductivity probe 122 monitors the conductivity of the residual condensed water and causes the device to alarm. The condensed water in the conductivity cell 120 is replaced quickly, ensuring that the monitored condensed water conductivity can well represent the purity of the pure steam. In addition, the conductivity cell 120 can be filled with condensed water in a relatively short time, so that the conductivity probe 122 can obtain a stable reading in a relatively short time.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A sampler, characterized in that: The sampler comprises: A shell, wherein the interior of the shell is hollow, a conductivity cell is arranged in the shell, the shell comprises a top and a bottom arranged oppositely, the top is used to pass pure steam or condensed water formed by pure steam; the conductivity cell faces the top and is used to receive the condensed water, the capacity of the conductivity cell is significantly smaller than the internal space of the shell, so that the condensed water quickly fills the conductivity cell and overflows into the interior of the shell, so that the condensed water in the conductivity cell is replaced faster, the conductivity cell is used to set a conductivity probe, the bottom wall of the conductivity cell is provided with a drainage hole, and the flow rate of the drainage hole is smaller than the flow rate of the condensed water passed from the top; A circulation pipe, wherein the starting end of the circulation pipe is connected to the bottom of the shell, and the end of the circulation pipe is used to discharge the condensed water in the shell.

2. The sampler according to claim 1, characterized in that: The sampler further comprises a sampling valve, which is arranged at the bottom of the shell and is used for discharging condensed water inside the shell.

3. The sampler according to claim 1, characterized in that: A bottom cover is arranged in the shell, the bottom cover is arranged at the bottom, a first through hole is opened on the bottom cover, and the starting end of the circulation pipe is connected to the inside of the shell through the first through hole.

4. The sampler according to claim 3, characterized in that: A sealing guide pad is provided in the shell, and the sealing guide pad is attached to the bottom of the bottom cover. A guide hole is opened on the sealing guide pad, and the guide hole is connected with the first through hole and the starting end of the circulation pipe respectively. The condensed water in the shell flows into the circulation pipe through the first through hole and the guide hole in turn.

5. The sampler according to claim 1, characterized in that: A distance from the conductivity cell to the top is smaller than a distance from the conductivity cell to the bottom.

6. The sampler according to claim 1, characterized in that: The conductivity cell is an L-shaped water storage tank, and a water inlet is provided at the end of the L-shaped water storage tank. The water inlet is arranged toward the top of the shell and is used to receive the condensed water.

7. The sampler according to claim 1, characterized in that: A first end cover and a second end cover are provided on the top of the shell, the first end cover and the second end cover are spaced apart, one side of the second end cover is arranged toward the conductivity cell, and the other side of the second end cover is arranged toward the first end cover, the gap between the first end cover and the second end cover forms a condensate buffer chamber, and the end of the circulation pipe is connected to the condensate buffer chamber.

8. The sampler according to claim 7, characterized in that: The first end cover is provided with a condensate outlet or a condensate outlet is provided on the side wall of the condensate buffer chamber, the condensate outlet is connected to the condensate buffer chamber, and the condensate is discharged from the sampler in sequence through the end of the circulation pipe, the condensate buffer chamber and the condensate outlet.

9. The sampler according to claim 7, characterized in that: The second end cover is also provided with a first exhaust hole, and the first exhaust hole is connected with the condensed water buffer cavity and the interior of the shell.

10. A circulation device, characterized in that: It comprises a pure steam condenser and the sampler according to any one of claims 1 to 9, wherein the pure steam condenser is arranged at the top of the shell, and a drainage tube is arranged at one end of the pure steam condenser facing the sampler, and the drainage tube passes through the first end cover and the second end cover of the sampler in sequence and is inserted into the bottom wall of the conductivity cell.

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